A spring plunger assembly can be used in manufacturing, machines, fixtures, etc. The spring plunger assembly has a spring that is located on the exterior of the plunger body. The spring plunger assembly includes a threaded section for engaging a threaded aperture.
A pilot assembly has an integral stripper and is coupled to a die member from the non-working side of the die member. The pilot tip precisely locates the stock strip in the metal forming die. The reciprocating ejector pins surrounding the pilot strip the stock from the pilot. The pilot assembly fits into an opening in the die member and can be secured by a single fastener that is received in the bottom of the pilot body of the pilot assembly.
B21D 45/08 - Stripping-off devices interrelated with motion of tool
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
A wiper cap assembly that can couple to a reciprocating member of a metal forming die. The wiper cap assembly couples to the top of a guide housing and includes a rod wiper that presses against a reciprocating rod within the guide housing. The rod wiper prevents the entry of containments on the section of the rod that reciprocates past the rod wiper.
B21D 7/02 - Bending rods, profiles, or tubes over a stationary forming memberBending rods, profiles, or tubes by use of a swinging forming member or abutment
A pilot assembly having a shaped portion and a shaped fastener relief for attachment to a die. The pilot assembly includes a fastener with a shaped washer that engages the shaped fastener relief to permit installation and removal of the pilot from the die. The shaped portion of the pilot assembly helps to locate and center the stock down the pilot assembly toward the die.
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
A stock lifter for metal forming dies includes a self-contained assembly. The assembly includes a guide pin that reciprocates within a base. A hardened end cap, which contacts the stock, is attached to the guide pin. A spring is located on the exterior surface of a portion of the base and surrounds the guide pin body. One end of the spring contacts a surface on the cap, while the other end of the spring contacts a surface on the base or an optional mounting flange that is attached above the base. Thus, the stock lifter assembly has a hardened cap for the stock to slide on and a larger, externally mounted spring that provides longer life for the stock lifter. The stock lifter assembly can be made of several different lengths and sizes by using longer or wider guide pins and springs.
A modular guided keeper base, guided keeper assembly, and related method includes a modular guided keeper base that mounts to a die member. The guided keeper base has an integrated stop for guide pin retention. The guided keeper base can also accommodate a variety of bushings within the base. The guided keeper base is attached to a die member using a mounting flange(s). Mounting fasteners pass through the fastener holes in the mounting flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the mounting fasteners to prevent unintentional unfastening of the fasteners from the die member.
H10D 84/40 - Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups or with at least one component covered by groups or , e.g. integration of IGFETs with BJTs
H01L 21/324 - Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
H10D 62/83 - Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
H10D 64/62 - Electrodes ohmically coupled to a semiconductor
H10D 84/03 - Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
A tight space pilot, tight space pilot assembly, and related method includes a tight space pilot that can be installed into a die without fasteners, fastener apertures, or added blocks for mounting. The tight space pilot assembly includes ejectors that are retained by the pilot and a retaining ring that holds the tight space pilot in place in a die member.
A pilot assembly having a shaped portion and a shaped fastener relief for attachment to a die. The pilot assembly includes a fastener with a shaped washer that engages the shaped fastener relief to permit installation and removal of the pilot from the die. The shaped portion of the pilot assembly helps to locate and center the stock down the pilot assembly toward the die.
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
A modular guided keeper base, guided keeper assembly, and related method includes a modular guided keeper base that mounts to a die member. The guided keeper base has an integrated stop for guide pin retention. The guided keeper base can also accommodate a variety of bushings within the base. The guided keeper base is attached to a die member using a mounting flange(s). Mounting fasteners pass through the fastener holes in the mounting flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the mounting fasteners to prevent unintentional unfastening of the fasteners from the die member.
A stock lifter for metal forming dies includes a self-contained assembly. The assembly includes a guide pin that reciprocates within a base. A hardened end cap, which contacts the stock, is attached to the guide pin. A spring is located on the exterior surface of a portion of the base and surrounds the guide pin body. One end of the spring contacts a surface on the cap, while the other end of the spring contacts a surface on the base or an optional mounting flange that is attached above the base. Thus, the stock lifter assembly has a hardened cap for the stock to slide on and a larger, externally mounted spring that provides longer life for the stock lifter. The stock lifter assembly can be made of several different lengths and sizes by using longer or wider guide pins and springs.
A guide pin assembly includes a guide pin body that connects to a die component using retaining rings. The guide pin assembly has an upper and a lower retaining ring that permits the retention of the guide pin body in a hole in a component of a metal forming die, with each retaining ring contacting a surface of the die component. The guide pin body includes an opening to permit the temporary insertion of a device for positioning the guide pin body within the opening in the die member.
A tight space pilot, tight space pilot assembly, and related method includes a tight space pilot that can be installed into a die without fasteners, fastener apertures, or added blocks for mounting. The tight space pilot assembly includes ejectors that are retained by the pilot and a retaining ring that holds the tight space pilot in place in a die member.
A modular guided keeper base, guided keeper assembly, and related method includes a modular guided keeper base that mounts to a die member. The guided keeper base has an integrated stop for guide pin retention. The guided keeper base can also accommodate a variety of bushings within the base. The guided keeper base is attached to a die member using a mounting flange(s). Mounting fasteners pass through the fastener holes in the mounting flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the mounting fasteners to prevent unintentional unfastening of the fasteners from the die member.
A collar and shaft assembly utilizing a ring and a multi-stepped groove. The multi-stepped groove permits the ring to be compressed into one groove while the collar is being assembled and then to expand into a different groove that permits the ring to contact surfaces on both the collar and the shaft.
F16B 21/18 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devicesMeans without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft Details
B21D 22/00 - Shaping without cutting, by stamping, spinning, or deep-drawing
A collar and shaft assembly utilizing a ring and a multi-stepped groove. The multi-stepped groove permits the ring to be compressed into one groove while the collar is being assembled and then to expand into a different groove that permits the ring to contact surfaces on both the collar and the shaft.
F16B 21/18 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devicesMeans without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft Details
B21D 22/00 - Shaping without cutting, by stamping, spinning, or deep-drawing
A compact stock guide assembly and method for metal forming dies includes a stock guide that includes a fastener that secures the stock guide to the die through a central aperture in the stock guide. The stock guide has a locating boss that can be received in a pocket in the die that has been bored and tapped to receive the fastener.
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B21D 43/02 - Advancing work in relation to the stroke of the die or tool
17.
Guide pin assembly for metal forming dies and method
A guide pin assembly for metal forming dies includes a cylindrical guide pin body with an external retainer groove adjacent one end thereof in which a retainer ring is received. An annular guide pin ring with an outside diameter greater than the pin body, has a counterbore adjacent the outside end thereof and a retainer groove in a medial portion thereof which receives the outer portion of the retainer ring to securely interconnect the pin body and the ring and thereby form an enlarged head at one end of the pin body which positively limits reciprocal motion between two associated die members. A circular guide pin head cap covers the outer end of the head ring, and includes a support collar that is closely received in the counterbore of the ring, and engages the retainer ring to securely hold the same in place.
A stock lifter for metal forming dies includes a self-contained assembly. The assembly includes a guide pin that reciprocates within a base. A hardened end cap, which contacts the stock, is attached to the guide pin. A spring is located on the exterior surface of a portion of the base and surrounds the guide pin body. One end of the spring contacts a surface on the cap, while the other end of the spring contacts a surface on the base or an optional mounting flange that is attached above the base. Thus, the stock lifter assembly has a hardened cap for the stock to slide on and a larger, externally mounted spring that provides longer life for the stock lifter. The stock lifter assembly can be made of several different lengths and sizes by using longer or wider guide pins and springs.
A pilot assembly having a shaped portion and a shaped fastener relief for attachment to a die. The pilot assembly includes a fastener with a shaped washer that engages the shaped fastener relief to permit installation and removal of the pilot from the die. The shaped portion of the pilot assembly helps to locate and center the stock down the pilot assembly toward the die.
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
A guided keeper assembly for metal forming dies includes a base having a mounting face and a fastener aperture to mount the base to an associated die shoe, as well as a central guide aperture. A guide pin having a central portion is closely received in the central guide aperture for precisely guiding reciprocal motion between the die pad and the die shoe. The guide pin has an enlarged head at one end which abuts the base to positively limit travel between the die shoe and the die pad, and a shoulder at an opposite end with an alignment mechanism that precisely locates the guide pin on the die pad. A fastener extends through the fastener aperture in the base to securely connect the same with the die shoe. Another fastener securely connects the second end of the guide pin with the die pad.
A guided keeper assembly and related method includes a cylindrical base that mounts to a die member using a multi-piece, interlocking flange. The flanges have outer fastener holes and inner arcuate walls that matingly engage a complimentary profile on the outer surface of the base to axially interconnect the same. The flanges also have male and female end connectors which snap lock together around the base in an assembled condition. Mounting screws pass through the fastener holes in the flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the screws to prevent unintentional unfastening of the screws from the die member.
A guided keeper assembly includes a base, at least one marginal fastener aperture to detachably mount the base to an associated die shoe, and a central guide aperture. A guide pin is closely received in the central aperture of the base. A first end of the guide pin has an enlarged head to positively limit travel between the die shoe and die pad, and an opposite second end with a generally flat terminal shoulder configured for close reception in a blind hole in the die pad. The shoulder has a fastener aperture at a location spaced radially offset from the central axis of the guide pin. A fastener extends through the fastener aperture in the die pad and engages in the fastener aperture in the second end of the guide pin to securely, yet detachably, connect the second end portion of the guide pin with the die pad.
A collar and shaft assembly utilizing a ring and a multi-stepped groove. The multi-stepped groove permits the ring to be compressed into one groove while the collar is being assembled and then to expand into a different groove that permits the ring to contact surfaces on both the collar and the shaft.
F16B 21/18 - Means without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devicesMeans without screw-thread for preventing relative axial movement of a pin, spigot, shaft, or the like and a member surrounding itStud-and-socket releasable fastenings without screw-thread by separate parts with grooves or notches in the pin or shaft Details
B21D 22/00 - Shaping without cutting, by stamping, spinning, or deep-drawing
B21D 39/06 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes in openings, e.g. rolling-in
24.
Modular pilot assembly with self-contained stripper and method for metal forming dies
A pilot assembly and method has a cylindrical pilot body with a tapered outer end, a grooved inner end, and a central portion with at least one inwardly curved side wall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot. A spring has its outer end mounted in the groove in the outer body end, and an inner end attached to the inner body end in a pre-tensed condition. A cap screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot in an associated die member.
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
B21J 13/08 - Accessories for handling work or tools
B21D 37/08 - Dies with different parts for several steps in a process
B21D 45/00 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
25.
Guide pin assembly for metal forming dies and method
A guide pin assembly for metal forming dies includes a cylindrical guide pin body with an external retainer groove adjacent one end thereof in which a retainer ring is received. An annular guide pin ring with an outside diameter greater than the pin body, has a counterbore adjacent the outside end thereof and a retainer groove in a medial portion thereof which receives the outer portion of the retainer ring to securely interconnect the pin body and the ring and thereby form an enlarged head at one end of the pin body which positively limits reciprocal motion between two associated die members. A circular guide pin head cap covers the outer end of the head ring, and includes a support collar that is closely received in the counterbore of the ring, and engages the retainer ring to securely hold the same in place.
A guided keeper assembly includes a base, at least one marginal fastener aperture to detachably mount the base to an associated die shoe, and a central guide aperture. A guide pin is closely received in the central aperture of the base. A first end of the guide pin has an enlarged head to positively limit travel between the die shoe and die pad, and an opposite second end with a generally flat terminal shoulder configured for close reception in a blind hole in the die pad. The shoulder has a fastener aperture at a location spaced radially offset from the central axis of the guide pin. A fastener extends through the fastener aperture in the die pad and engages in the fastener aperture in the second end of the guide pin to securely, yet detachably, connect the second end portion of the guide pin with the die pad.
A pilot assembly and method for metal forming dies has a generally cylindrical pilot with a stripper that strips stock from the pilot when metal forming dies diverge. The pilot assembly is secured to one die member by a fastener by itself or in combination with a window mount. A spring within the pilot assembly contacts the stripper to force the stripper to reciprocate when the dies are pulled apart. Thus, the pilot assembly helps locate the stock within the metal forming die while also having a stripper to help strip the stock from the pilot.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
A stock ejector assembly and method for metal forming dies includes a stock ejector with a large spring and a ring-style stripper. The ring-style stripper provides a larger surface area for contacting the stock. The large compression spring is preloaded and when a load is applied, the stripper retracts and the spring pressure increases. When the dies separate, the stock ejector pushes the part off flat surfaces, separating surfaces sealed by adhesion, including but not limited to oil or lubricant adhesion.
B23P 15/24 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
B21D 45/10 - Combined ejecting and stripping-off devices
B21D 45/00 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
B21D 43/04 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 37/08 - Dies with different parts for several steps in a process
B21D 22/06 - Stamping using rigid devices or tools having relatively-movable die parts
A stock ejector assembly and method for metal forming dies includes a stock ejector with a large spring and a ring-style stripper. The ring-style stripper provides a larger surface area for contacting the stock. The large compression spring is preloaded and when a load is applied, the stripper retracts and the spring pressure increases. When the dies separate, the stock ejector pushes the part off flat surfaces, separating surfaces sealed by adhesion, including, but not limited to, oil or lubricant adhesion.
A stock ejector assembly and method for metal forming dies includes a stock ejector with a large spring and a ring-style stripper. The ring-style stripper provides a larger surface area for contacting the stock. The large compression spring is preloaded and when a load is applied, the stripper retracts and the spring pressure increases. When the dies separate, the stock ejector pushes the part off flat surfaces, separating surfaces sealed by adhesion, including, but not limited to, oil or lubricant adhesion.
A two-piece guide pin for metal forming dies includes a guide pin body formed from a cut length of an elongate, solid bar of stock having a cylindrical shape and a hard and smooth finished exterior surface with an outside diameter selected for close reception and reciprocal motion in an associated die bore. An alignment member is formed on a first end of the guide pin body. A guide pin head is formed from a cut length of an elongate, solid bar of stock having an outside diameter that is substantially greater than that of the guide pin body, and is rigidly connected with the second end of the guide pin body in a generally concentric relationship to define an enlarged head that positively limits travel between an associated die shoe and die pad.
B21K 25/00 - Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
B23P 15/24 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
32.
Guided keeper assembly and method for metal forming dies
A guided keeper assembly and related method includes a cylindrical base that mounts to a die member using a multi-piece, interlocking flange. The flanges have outer fastener holes and inner arcuate walls that matingly engage a complimentary profile on the outer surface of the base to axially interconnect the same. The flanges also have male and female end connectors which snap lock together around the base in an assembled condition. Mounting screws pass through the fastener holes in the flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the screws to prevent unintentional unfastening of the screws from the die member.
A guided keeper assembly for metal forming dies includes a base having a mounting face and a fastener aperture to mount the base to an associated die shoe, as well as a central guide aperture. A guide pin having a central portion is closely received in the central guide aperture for precisely guiding reciprocal motion between the die pad and the die shoe. The guide pin has an enlarged head at one end which abuts the base to positively limit travel between the die shoe and the die pad, and a shoulder at an opposite end with an alignment mechanism that precisely locates the guide pin on the die pad. A fastener extends through the fastener aperture in the base to securely connect the same with the die shoe. Another fastener securely connects the second end of the guide pin with the die pad.
A pilot assembly and method has a cylindrical pilot body with a tapered outer end, a grooved inner end, and a central portion with at least one inwardly curved side wall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot. A spring has its outer end mounted in the groove in the outer body end, and an inner end attached to the inner body end in a pre-tensed condition. A cap screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot in an associated die member.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21J 13/08 - Accessories for handling work or tools
B21D 37/08 - Dies with different parts for several steps in a process
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
A stock ejector assembly and method for metal forming dies includes a stock ejector with a large spring and a ring-style stripper. The ring-style stripper provides a larger surface area for contacting the stock. The large compression spring is preloaded and when a load is applied, the stripper retracts and the spring pressure increases. When the dies separate, the stock ejector pushes the part off flat surfaces, separating surfaces sealed by adhesion, including but not limited to oil or lubricant adhesion.
B23P 15/24 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
B21D 45/10 - Combined ejecting and stripping-off devices
B21D 43/04 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 37/08 - Dies with different parts for several steps in a process
36.
Low profile pilot assembly and method for metal forming dies
A pilot assembly and method for metal forming dies has a generally cylindrical pilot with a stripper that strips stock from the pilot when metal forming dies diverge. The pilot assembly is secured to one die member by a fastener by itself or in combination with a window mount. A spring within the pilot assembly contacts the stripper to force the stripper to reciprocate when the dies are pulled apart. Thus, the pilot assembly helps locate the stock within the metal forming die while also having a stripper to help strip the stock from the pilot.
B21D 37/08 - Dies with different parts for several steps in a process
B23P 15/24 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
A guide pin assembly for metal forming dies includes a cylindrical guide pin body with a tapered guide pin head to guide associated die members from converging and diverging positions. A base is used to secure the guide pin assembly to one of the die members in a reciprocating die. The base includes a tapered surface that coincides with the tapered surface of the guide pin head to transfer the directional force, caused by the diverging die members, on the guide pin assembly to other die components. The guide pin assembly includes additional dampening components between the guide pin assembly and the base to dampen the impact caused by the diverging die members.
A retractable stock guide has a stationary guide rail on which a retractable guide cap is operably supported. The guide rail and cap have two through holes at opposite ends through which two mounting studs extend to attach the stock guide to an associated die member. The holes in the guide cap are ovate, and the heads of the mounting studs are tapered, whereby tightening of the mounting stud shifts the guide cap relative to the guide rail from an aligned, retracted load/unload condition, to an inwardly protruding, extended run condition, wherein the stock strip is slidingly captured between two like stock guides and the mounting surface of the die. Two ball bearing guides can be substituted for the stationary guide rail.
B21D 43/02 - Advancing work in relation to the stroke of the die or tool
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B23P 15/24 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
B21D 37/08 - Dies with different parts for several steps in a process
39.
Guide pin assembly for metal forming dies and method
A guide pin assembly for metal forming dies includes a cylindrical guide pin body with an external retainer groove adjacent one end thereof in which a retainer ring is received. An annular guide pin ring with an outside diameter greater than the pin body, has a counterbore adjacent the outside end thereof and a retainer groove in a medial portion thereof which receives the outer portion of the retainer ring to securely interconnect the pin body and the ring and thereby form an enlarged head at one end of the pin body which positively limits reciprocal motion between two associated die members. A circular guide pin head cap covers the outer end of the head ring, and includes a support collar that is closely received in the counterbore of the ring, and engages the retainer ring to securely hold the same in place.
A guide pin assembly for metal forming dies includes a cylindrical guide pin body with a tapered guide pin head to guide associated die members from converging and diverging positions. A base is used to secure the guide pin assembly to one of the die members in a reciprocating die. The base includes a tapered surface that coincides with the tapered surface of the guide pin head to transfer the directional force, caused by the diverging die members, on the guide pin assembly to other die components. The guide pin assembly includes additional dampening components between the guide pin assembly and the base to dampen the impact caused by the diverging die members.
A pilot assembly and method for metal forming dies has a generally cylindrical pilot with a stripper that strips stock from the pilot when metal forming dies diverge. The pilot assembly is secured to one die member by a fastener by itself or in combination with a window mount. A spring within the pilot assembly contacts the stripper to force the stripper to reciprocate when the dies are pulled apart. Thus, the pilot assembly helps locate the stock within the metal forming die while also having a stripper to help strip the stock from the pilot.
B21D 37/08 - Dies with different parts for several steps in a process
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
42.
Guided keeper assembly and method for metal forming dies
A guided keeper assembly for metal forming dies includes a base having a mounting face and a fastener aperture to mount the base to an associated die shoe, as well as a central guide aperture. A guide pin having a central portion is closely received in the central guide aperture for precisely guiding reciprocal motion between the die pad and the die shoe. The guide pin has an enlarged head at one end which abuts the base to positively limit travel between the die shoe and the die pad, and a shoulder at an opposite end with an alignment mechanism that precisely locates the guide pin on the die pad. A fastener extends through the fastener aperture in the base to securely connect the same with the die shoe. Another fastener securely connects the second end of the guide pin with the die pad.
A pilot assembly and method has a cylindrical pilot body with a pilot insert having tapered outer end. The pilot assembly has at least one inwardly curved sidewall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot. A spring has its outer end mounted in the groove in the pilot body, and an inner end attached to the inner end of the pilot insert in a pre-tensed condition. A cap screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot in an associated die member.
A pilot assembly and method has a cylindrical pilot body with a pilot insert having tapered outer end. The pilot assembly has at least one inwardly curved sidewall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot. A spring has its outer end mounted in the groove in the pilot body, and an inner end attached to the inner end of the pilot insert in a pre-tensed condition. A cap screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot in an associated die member.
A pilot assembly with a self-contained stripper and method for metal forming dies has a cylindrical pilot with internally mounted reciprocating ejector pins with outer ends that protrude through holes in the body of the pilot to strip stock from the pilot. The pilot assembly is secured to the die by a window mount such that one or more surfaces of the pilot abut surfaces on the window mount and die to secure the pilot to the die and window mount when the window mount is secured, via a fastener, to the die. A spring within the pilot assembly contacts an end of the ejector pins to force the pins to reciprocate when the dies are pulled apart. The assembly can be made without the locating pilot surface to provide a stripper assembly for stripping the stock from the associated die.
B21D 37/08 - Dies with different parts for several steps in a process
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
COMPONENTS FOR METAL FORMING DIES, NAMELY, TRAVELLING STOCK RAILS USED PRIMARILY IN PROGRESSIVE STAMPING DIES TO LIFT THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR; GUIDES AND KEEPERS USED PRIMARILY IN STAMPING DIES TO GUIDE AND RETAIN STRIPPER PADS, FORM PADS, AND LONG LIFTER BARS AND PARTS THEREFOR; GAS SPRING CLAMPS USED PRIMARILY TO RETAIN GAS SPRINGS IN STAMPING DIES AND PARTS THEREFOR; PILOT ASSEMBLIES USED PRIMARILY IN PROGRESSIVE DIES TO LOCATE THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR; FIXED STOCK GUIDES USED PRIMARILY IN PROGRESSIVE DIES TO GUIDE THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR; STOCK EJECTORS USED PRIMARILY IN PROGRESSIVE STAMPING DIES TO STRIP THE STOCK FROM FLAT SURFACES, AND PARTS THEREFOR; MODULAR LIFTERS USED PRIMARILY IN PROGRESSIVE STAMPING DIES TO LIFT THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR
COMPONENTS FOR METAL FORMING DIES, NAMELY, TRAVELLING STOCK RAILS USED PRIMARILY IN PROGRESSIVE STAMPING DIES TO LIFT THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR; GUIDES AND KEEPERS USED PRIMARILY IN STAMPING DIES TO GUIDE AND RETAIN STRIPPER PADS, FORM PADS, AND LONG LIFTER BARS AND PARTS THEREFOR; GAS SPRING CLAMPS USED PRIMARILY TO RETAIN GAS SPRINGS IN STAMPING DIES AND PARTS THEREFOR; PILOT ASSEMBLIES USED PRIMARILY IN PROGRESSIVE DIES TO LOCATE THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR; FIXED STOCK GUIDES USED PRIMARILY IN PROGRESSIVE DIES TO GUIDE THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR; STOCK EJECTORS USED PRIMARILY IN PROGRESSIVE STAMPING DIES TO STRIP THE STOCK FROM FLAT SURFACES, AND PARTS THEREFOR; MODULAR LIFTERS USED PRIMARILY IN PROGRESSIVE STAMPING DIES TO LIFT THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR
A two-piece guide pin for metal forming dies includes a guide pin body formed from a cut length of an elongate, solid bar of stock having a cylindrical shape and a hard and smooth finished exterior surface with an outside diameter selected for close reception and reciprocal motion in an associated die bore. An alignment member is formed on a first end of the guide pin body. A guide pin head is formed from a cut length of an elongate, solid bar of stock having an outside diameter that is substantially greater than that of the guide pin body, and is rigidly connected with the second end of the guide pin body in a generally concentric relationship to define an enlarged head that positively limits travel between an associated die shoe and die pad.
B21D 37/12 - Particular guiding equipmentSpecial arrangements for interconnection or cooperation of dies
B21K 25/00 - Uniting components to form integral members, e.g. turbine wheels and shafts, caulks with inserts, with or without shaping of the components
A pilot assembly and method for metal forming dies has a generally cylindrical pilot with a stripper that strips stock from the pilot when metal forming dies diverge. The pilot assembly is secured to one die member by a fastener by itself or in combination with a window mount. A spring within the pilot assembly contacts the stripper to force the stripper to reciprocate when the dies are pulled apart. Thus, the pilot assembly helps locate the stock within the metal forming die while also having a stripper to help strip the stock from the pilot.
A pilot assembly and method for metal forming dies has a generally cylindrical pilot with a stripper that strips stock from the pilot when metal forming dies diverge. The pilot assembly is secured to one die member by a fastener by itself or in combination with a window mount. A spring within the pilot assembly contacts the stripper to force the stripper to reciprocate when the dies are pulled apart. Thus, the pilot assembly helps locate the stock within the metal forming die while also having a stripper to help strip the stock from the pilot.
A guide pin assembly for metal forming dies includes a cylindrical guide pin body with an external retainer groove adjacent one end thereof in which a retainer ring is received. An annular guide pin ring with an outside diameter greater than the pin body, has a counterbore adjacent the outside end thereof and a retainer groove in a medial portion thereof which receives the outer portion of the retainer ring to securely interconnect the pin body and the ring and thereby form an enlarged head at one end of the pin body which positively limits reciprocal motion between two associated die members. A circular guide pin head cap covers the outer end of the head ring, and includes a support collar that is closely received in the counterbore of the ring, and engages the retainer ring to securely hold the same in place.
A retractable stock guide has a stationary guide rail on which a retractable guide cap is operably supported. The guide rail and cap have two through holes at opposite ends through which two mounting studs extend to attach the stock guide to an associated die member. The holes in the guide cap are ovate, and the heads of the mounting studs are tapered, whereby tightening of the mounting stud shifts the guide cap relative to the guide rail from an aligned, retracted load/unload condition, to an inwardly protruding, extended run condition, wherein the stock strip is slidingly captured between two like stock guides and the mounting surface of the die. Two ball bearing guides can be substituted for the stationary guide rail.
B21D 43/16 - Advancing work in relation to the stroke of the die or tool by gravity, e.g. chutes
B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
B23P 15/24 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass dies
B21D 37/08 - Dies with different parts for several steps in a process
B21D 43/02 - Advancing work in relation to the stroke of the die or tool
53.
Modular pilot assembly with self-contained stripper and method for metal forming dies
A pilot assembly and method has a cylindrical pilot sleeve with an apertured outer end in which a separate pilot pin is received, a grooved inner end, and a central portion with at least one inwardly curved sidewall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot pin. A spring has its outer end mounted in the sleeve groove, and an inner end captured in a die pocket in a pretensed condition. A mounting screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot sleeve in the die.
B21D 37/08 - Dies with different parts for several steps in a process
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
B21K 27/04 - Feeding devices for rods, wire, or strips allowing successive working steps
54.
MODULAR PILOT ASSEMBLY WITH SELF-CONTAINED STRIPPER AND METHOD FOR METAL FORMING DIES
A pilot assembly and method has a cylindrical pilot sleeve with an apertured outer end in which a separate pilot pin is received, a grooved inner end, and a central portion with at least one inwardly curved sidewall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot pin. A spring has its outer end mounted in the sleeve groove, and an inner end captured in a die pocket in a pretensed condition. A mounting screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot sleeve in the die.
A pilot assembly and method has a cylindrical pilot body with a tapered outer end, a grooved inner end, and a central portion with at least one inwardly curved side wall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot. A spring has its outer end mounted in the groove in the outer body end, and an inner end attached to the inner body end in a pre-tensed condition. A cap screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot in an associated die member.
A pilot assembly and method has a cylindrical pilot body with a tapered outer end, a grooved inner end, and a central portion with at least one inwardly curved side wall relief, as well as internally mounted reciprocating ejector pins with outer ends that protrude through holes in the outer body end to strip stock from the pilot. A spring has its outer end mounted in the groove in the outer body end, and an inner end attached to the inner body end in a pre-tensed condition. A cap screw has an enlarged head that has at least a portion thereof fit into the pilot sidewall relief, and a threaded shank that anchors the pilot in an associated die member.
B21D 37/08 - Dies with different parts for several steps in a process
B21D 43/06 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by positive or negative engaging parts co-operating with corresponding parts of the sheet or the like to be processed, e.g. carrier bolts or grooved section in the carriers
B21D 45/00 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
57.
Guided keeper assembly and method for metal forming dies
A guided keeper assembly for metal forming dies includes a base having a mounting face and a fastener aperture to mount the base to an associated die shoe, as well as a central guide aperture. A guide pin having a central portion is closely received in the central guide aperture for precisely guiding reciprocal motion between the die pad and the die shoe. The guide pin has an enlarged head at one end which abuts the the-base to positively limit travel between the die shoe and the die pad, and a shoulder at an opposite end with an alignment mechanism that precisely locates the guide pin on the die pad. A fastener extends through the fastener aperture in the base to securely connect the same with the die shoe. Another fastener securely connects the second end of the guide pin with the die pad.
B21D 24/08 - Pneumatically or hydraulically loaded blank holders
B21D 37/00 - Tools as parts of machines covered by this subclass
B21J 9/18 - Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
58.
GUIDED KEEPER ASSEMBLY AND METHOD FOR METAL FORMING DIES
A guided keeper assembly and related method includes a cylindrical base that mounts to a die member using a multi-piece, interlocking flange. The flanges have outer fastener holes and inner arcuate walls that matingly engage a complimentary profile on the outer surface of the base to axially interconnect the same. The flanges also have male and female end connectors which snap lock together around the base in an assembled condition. Mounting screws pass through the fastener holes in the flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the screws to prevent unintentional unfastening of the screws from the die member.
A guided keeper assembly and related method includes a cylindrical base that mounts to a die member using a multi-piece, interlocking flange. The flanges have outer fastener holes and inner arcuate walls that matingly engage a complimentary profile on the outer surface of the base to axially interconnect the same. The flanges also have male and female end connectors which snap lock together around the base in an assembled condition. Mounting screws pass through the fastener holes in the flanges and are anchored in the die member to securely retain the guided keeper assembly in place. A retainer ring is mounted in an associated groove in the base over the heads of the screws to prevent unintentional unfastening of the screws from the die member.
A gas spring mount and related method for metal forming dies includes a one-piece, split clamping ring having a generally ovate plan shape with two spaced apart axes of symmetry. A generally circular clamping portion extends around the first axis, and is shaped to receive a gas spring body therein. A hook-shaped end extends around the second axis, and is shaped to receive a tapered head mounting member therein. A resilient free end is located operably between the clamping portion and the hook-shaped end portion, whereby tightening of the mounting member shifts the hook-shaped end outwardly and the free end inwardly to constrictingly pull the clamping ring securely against the gas spring body, and contemporaneously attach the assembly to an associated die member.
A gas spring mount and related method for metal forming dies includes a one-piece, generally U-shaped clamping band with an arcuate medial portion shaped to receive an associated gas spring body therein, and two enlarged ends with through apertures. Threaded mounting screws extend through the through apertures in the clamping band ends, and are anchored into threaded retainer holes in an associated die member. At least one of the mounting screws has a tapered head and is disposed laterally offset from the associated threaded retainer hole in the die, whereby tightening of the one screw shifts the related enlarged end of the mounting band laterally toward the opposite enlarged end to pull the clamping band constrictingly against the gas spring body to securely, yet detachably retain the same therein.
A gas spring mount and related method for metal forming dies includes a one-piece, split clamping ring having a generally ovate plan shape with two spaced apart axes of symmetry. A generally circular clamping portion extends around the first axis, and is shaped to receive a gas spring body therein. A hook-shaped end extends around the second axis, and is shaped to receive a tapered head mounting member therein. A resilient free end is located operably between the clamping portion and the hook-shaped end portion, whereby tightening of the mounting member shifts the hook-shaped end outwardly and the free end inwardly to constrictingly pull the clamping ring securely against the gas spring body, and contemporaneously attach the assembly to an associated die member.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 45/00 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
B21J 9/18 - Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
63.
Gas spring mounting assembly and method for metal forming dies
A gas spring mount and related method for metal forming dies includes a one-piece, generally U-shaped clamping band with an arcuate medial portion shaped to receive an associated gas spring body therein, and two enlarged ends with through apertures. Threaded mounting screws extend through the through apertures in the clamping band ends, and are anchored into threaded retainer holes in an associated die member. At least one of the mounting screws has a tapered head and is disposed laterally offset from the associated threaded retainer hole in the die, whereby tightening of the one screw shifts the related enlarged end of the mounting band laterally toward the opposite enlarged end to pull the clamping band constrictingly against the gas spring body to securely, yet detachably retain the same therein.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
B21D 45/00 - Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
B21J 9/18 - Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
A locking collar assembly for metal forming dies includes a disc-shaped locking collar with a cylindrical outer surface closely received in a collar bore in one face of a first die member. A circular recess in the outer face of the locking collar has an internal retainer ring groove. A counter bore shaped fastener hole extends through the collar and a part of the recess, and has shank, head and shoulder portions. A socket head cap screw is inserted in the fastener hole with a threaded end anchored in a threaded end aperture in one of the guide pins, with the head seated on the shoulder of the fastener hole. A retainer ring is mounted in the collar ring groove and overlies the cap screw head to positively prevent the cap screw from unintentionally unfastening from the guide pin.
A guided keeper and method for metal forming dies includes a base with a head portion and an opposite externally threaded mounting portion received in a mating die aperture. A scalloped shoulder portion with arc-shaped notches is located axially between the head and the mounting portions of the base, and a retainer ring groove is located axially between the head and the scalloped shoulder portion of the base. A cap screw is retained in the die, and has a cylindrical head received in one of the arc-shaped notches in the base to retain the base in place. A retainer ring is mounted in the ring groove in the base and retains the cap screw in place.
A locking collar assembly for metal forming dies includes a disc-shaped locking collar with a cylindrical outer surface closely received in a collar bore in one face of a first die member. A circular recess in the outer face of the locking collar has an internal retainer ring groove. A counter bore shaped fastener hole extends through the collar and a part of the recess, and has shank, head and shoulder portions. A socket head cap screw is inserted in the fastener hole with a threaded end anchored in a threaded end aperture in one of the guide pins, with the head seated on the shoulder of the fastener hole. A retainer ring is mounted in the collar ring groove and overlies the cap screw head to positively prevent the cap screw from unintentionally unfastening from the guide pin.
A guided keeper and method for metal forming dies includes a base with a head portion and an opposite externally threaded mounting portion received in a mating die aperture. A scalloped shoulder portion with arc-shaped notches is located axially between the head and the mounting portions of the base, and a retainer ring groove is located axially between the head and the scalloped shoulder portion of the base. A cap screw is retained in the die, and has a cylindrical head received in one of the arc-shaped notches in the base to retain the base in place. A retainer ring is mounted in the ring groove in the base and retains the cap screw in place.
A guided keeper includes a base having a mounting face, one marginal fastener aperture to mount the base to a die shoe, and a central guide aperture. A guide pin is received in the central aperture of the base. One end of the guide pin has an enlarged head to positively limit travel between the die shoe and die pad, and an opposite second end with a flat terminal shoulder received in a blind hole in the die pad. The shoulder has a perpendicular fastener aperture at a location spaced radially offset from the central axis of the guide pin. A fastener extends through the fastener aperture in the die pad and engages in the fastener aperture in the second end of the guide pin to securely, yet detachably, connect the guide pin with the die pad and positively prevent the guide pin from rotating axially.
A guided keeper assembly includes a base, at least one marginal fastener aperture to detachably mount the base to an associated die shoe, and a central guide aperture. A guide pin is closely received in the central aperture of the base. A first end of the guide pin has an enlarged head to positively limit travel between the die shoe and die pad, and an opposite second end with a generally flat terminal shoulder configured for close reception in a blind hole in the die pad. The shoulder has a fastener aperture at a location spaced radially offset from the central axis of the guide pin. A fastener extends through the fastener aperture in the die pad and engages in the fastener aperture in the second end of the guide pin to securely, yet detachably, connect the second end portion of the guide pin with the die pad.
A guided keeper assembly and method for metal forming dies includes a base having a flat mounting face and at least one marginal fastener aperture to detachably mount the base to an associated die shoe, as well as a central guide aperture. The assembly also includes a guide pin having a central portion closely received in the central guide aperture of the base for precisely guiding reciprocal motion between the die pad and an associated die shoe. The guide pin has an enlarged head at a first end thereof which abuts the mounting face of the base to positively limit travel between the die shoe and the die pad, and a shoulder at the opposite or second end thereof with an alignment mechanism that precisely locates the second end of the guide pin on the die pad. A first fastener extends through the marginal fastener aperture in the base to securely, yet detachably, connect the same with the die shoe. A second fastener securely, yet detachably, connects the second end of the guide pin with the die pad.
B21D 24/08 - Pneumatically or hydraulically loaded blank holders
B21D 37/00 - Tools as parts of machines covered by this subclass
B21J 9/18 - Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
A two-piece guide pin for metal forming dies includes a guide pin body formed from a cut length of an elongate, solid bar of stock having a cylindrical shape and a hard and smooth finished exterior surface with an outside diameter selected for close reception and reciprocal motion in an associated die bore. An alignment member is formed on a first end of the guide pin body. A guide pin head is formed from a cut length of an elongate, solid bar of stock having an outside diameter that is substantially greater than that of the guide pin body, and is rigidly connected with the second end of the guide pin body in a generally concentric relationship to define an enlarged head that positively limits travel between an associated die shoe and die pad.
A two-piece guide pin for metal forming dies includes a guide pin body formed from a cut length of an elongate, solid bar of stock having a cylindrical shape and a hard and smooth finished exterior surface with an outside diameter selected for close reception and reciprocal motion in an associated die bore. An alignment member is formed on a first end of the guide pin body. A guide pin head is formed from a cut length of an elongate, solid bar of stock having an outside diameter that is substantially greater than that of the guide pin body, and is rigidly connected with the second end of the guide pin body in a generally concentric relationship to define an enlarged head that positively limits travel between an associated die shoe and die pad.
A guided keeper assembly and method for metal forming dies includes a base having a flat mounting face and at least one marginal fastener aperture to detachably mount the base to an associated die shoe, as well as a central guide aperture. The assembly also includes a guide pin having a central portion closely received in the central guide aperture of the base for precisely guiding reciprocal motion between the die pad and an associated die shoe. The guide pin has an enlarged head at a first end thereof which abuts the mounting face of the base to positively limit travel between the die shoe and the die pad, and a shoulder at the opposite or second end thereof with an alignment mechanism that precisely locates the second end of the guide pin on the die pad. A first fastener extends through the marginal fastener aperture in the base to securely, yet detachably, connect the same with the die shoe. A second fastener securely, yet detachably, connects the second end of the guide pin with the die pad.
B21D 24/08 - Pneumatically or hydraulically loaded blank holders
B21D 37/00 - Tools as parts of machines covered by this subclass
B21J 9/18 - Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
74.
Modular spring retainer and method for metal forming dies and the like
A modular spring retainer and method for metal forming dies includes a base shaped for detachable connection with an associated die plate, having a threaded central aperture, and an adjacent lock dowel aperture which extends through the threaded central aperture to form a window. A cylindrically-shaped spring retainer is configured to receive a spring therein, and has a threaded exterior portion which engages the threaded central aperture of the base, such that mutual rotation of the same adjusts the longitudinal position of the spring. A locking dowel is closely received in the lock dowel aperture in the base, and has an unthreaded exterior surface which protrudes through the window and abuttingly engages an adjacent portion of the threaded exterior surface of the spring retainer to securely, yet detachably, retain the spring member in a selected longitudinal position.
B21D 43/05 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work specially adapted for multi-stage presses
75.
Guided keeper assembly and method for metal forming dies
A guided keeper assembly and method for metal forming dies includes a base having a mounting face, a connector portion and a central aperture. A guide pin has a cylindrical center portion closely received in the central aperture of the base for reciprocation, an enlarged first end with an alignment member, and an outwardly opening circumferential groove. A retainer ring is removably mounted in and protrudes radially outwardly of the groove to securely, yet detachably, retain the base on the guide pin between the enlarged head and the retainer ring in an assembled condition to facilitate transport and mounting of the guided keeper assembly.
B21D 24/08 - Pneumatically or hydraulically loaded blank holders
B21D 37/00 - Tools as parts of machines covered by this subclass
B21J 9/18 - Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
COMPONENTS FOR METAL FORMING DIES, NAMELY, TRAVELLING STOCK RAILS USED PRIMARILY IN PROGRESSIVE STAMPING DIES TO LIFT THE STOCK AS IT PROGRESSES THROUGH THE DIE AND PARTS THEREFOR; GUIDES AND KEEPERS USED PRIMARILY IN STAMPING DIES TO GUIDE AND RETAIN STRIPPER PADS, FORM PADS, AND LONG LIFTER BARS AND PARTS THEREFOR [ ; MODULAR SPRING RETAINERS USED PRIMARILY TO RETAIN SPRINGS IN STAMPING DIES AND PARTS THEREFOR ]
77.
Guided keeper assembly and method for metal forming dies
A guided keeper assembly and method for metal forming dies includes a base having a flat mounting face and at least one marginal fastener aperture to detachably mount the base to an associated die shoe, as well as a central guide aperture. The assembly also includes a guide pin having a central portion closely received in the central guide aperture of the base for precisely guiding reciprocal motion between the die pad and an associated die shoe. The guide pin has an enlarged head at a first end thereof which abuts the mounting face of the base to positively limit travel between the die shoe and the die pad, and a shoulder at the opposite or second end thereof with an alignment mechanism that precisely locates the second end of the guide pin on the die pad. A first fastener extends through the marginal fastener aperture in the base to securely, yet detachably, connect the same with the die shoe. A second fastener securely, yet detachably, connects the second end of the guide pin with the die pad.
B21D 24/08 - Pneumatically or hydraulically loaded blank holders
B21D 37/00 - Tools as parts of machines covered by this subclass
B21J 9/18 - Drives for forging presses operated by making use of gearing mechanisms, e.g. levers, spindles, crankshafts, eccentrics, toggle-levers, rack bars
