A cubic boron nitride (cBN) polycrystallite includes: a fine-grained cBN crystal of 10-60 nm in grain size; a coarse-grained cBN crystal of 100-250 nm in grain size; and a lamellar crystal consisting of stacked plate-like crystals of cBN with the maximum length perpendicular to the stacking direction not larger than 1000 nm and an aspect ratio smaller than 3, where the aspect ratio is defined as the maximum length divided by a maximum length in the stacking direction, and a mean grain size of the fine-grained, coarse-grained and lamellar crystals is not larger than 80 nm. This cBN polycrystallite can be obtained by performing, under 10 GPa or lower, heating a material made of hexagonal system boron nitride to a first temperature within 1300°-1600° C., maintaining it for a first predetermined period, heating it to a second temperature within 1700°−2100° C., maintaining it for a second predetermined period, and cooling it.
A first grinding wheel drive unit (16) of this honing device has: a connection member (165) which is elongated and of which the lower end is connected to a first wedge rod (141); a feed screw integrated spline (164) connected to the connection member (165) via an inner expansion shaft bearing (166); a motor (161) that rotates a first feed screw of the feed screw integrated spline (164); and a ball speed reducer (162). A second grinding wheel drive unit (17) has: a feed screw integrated spline (176) of which the lower end is connected to a second wedge rod (142) via a connection member (177) and an outer expansion shaft bearing (178); a motor (171) that rotates a second feed screw of the feed screw integrated spline (176); and a ball speed reducer (172).
B24B 33/02 - Honing machines or devicesAccessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
A fuel gas supply apparatus (2) comprises: a pressure reducing valve (22) that reduces, to a preset pressure, the pressure of a fuel gas supplied from a tank (1) which stores the fuel gas; and a supply amount regulating unit (3) that is formed on the downstream side of the pressure reducing valve (22), and that adjusts the supply amount of the fuel gas from a fuel supply path by selecting a fuel supply path which passes through at least one of two orifices (241, 242) which have orifice diameters different from each other. According to this fuel gas supply apparatus (2), a mechanism to suppress fuel gas pressure fluctuation becomes unnecessary, therefore the entire fuel gas supply apparatus (2) can be minimized.
A workpiece retention device (1) comprising: a first tubular member (15) that is fixed to a base member (11) in a condition in which an inside surface thereof is facing an outside surface of a first retention part (123) with a first elastic member interposed therebetween; a first oscillation restricting part (21) that restricts movement of a first oscillation member (12) relative to the base member (11), by expanding the first elastic member and pressing the entire outside of the first elastic member against the inside surface of the first tubular member (15); a second tubular member (16) that is fixed to the first oscillation member (12) in a condition in which an inside surface thereof is facing an outside surface of a section retention part (133) with a second elastic member interposed therebetween; and a second oscillation restricting part (22) that restricts movement of a second oscillation member (13) relative to the first oscillation member (12), by expanding the second elastic member and pressing the entire outside of the second elastic member against the inside surface of the second tubular member (16).
B23Q 1/64 - Movable or adjustable work or tool supports characterised by the purpose of the movement
B23Q 1/54 - Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only two rotating pairs only
B23Q 3/02 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
B24B 33/02 - Honing machines or devicesAccessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
This honing device comprises: a honing tool (1); a rotary main shaft (2) to which the honing tool (1) is fixed; an axial-direction drive unit (4) that moves the rotary main shaft (2) in the Z-axis direction; a workpiece holder (3) that holds a workpiece (W) in a state in which a central axis (J2) of a work hole (Wh) of the workpiece (W) and a central axis (J1) of the rotary main shaft (2) coincide with each other; and a holder drive unit (6) that moves the workpiece holder (3) in the direction along the central axis (J1) by applying a driving force in the direction along the central axis (J1) to the portion of the workpiece holder (3) corresponding to the extended line of the central axis (J1) of the rotary main shaft (2).
B24B 33/02 - Honing machines or devicesAccessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
This cutting machining device comprises a head (5), a holding unit (3), and a control unit. The holding unit (3) includes: a workpiece holding section (32) for holding a workpiece (W); a contact plug (361) that can be brought into contact with a tool (20) fixed to the head (5); a cover (31) that has a box-like shape and has formed therein a first opening (311a) whereby the contact plug (361) is detachably held in a position spaced apart from a fixing part of the workpiece holding section (32) in a peripheral wall; and a touch sensor (61) that detects contact of the tip section of the tool (20) with the contact plug (361). The control unit has a calculation unit that uses the initial position of the head (5) and the contact position of the head (5) when contact of the tip section of the tool (20) with the contact plug (361) is detected using the touch sensor (61) as a basis to calculate a machining start position on the occasion of cutting machining of the workpiece (W) by means of the tool (20).
A processed bone retainer (1) comprises: a base (11) including insertion portions (113, 114) which are rod-shaped, have a male screw portion (114a) formed on a side wall thereof, and are inserted into through-holes (H1, H2) in a processed bone (Bo), and a supporting portion (112) which is rod-shaped, is continuous with the insertion portion (113) at one end, and has a cross-sectional area, perpendicular to a central axial direction, that is greater than a cross-sectional area, perpendicular to a central axial direction, of the through-hole (H2); and a sandwiching member (12) having a screw hole (121a) on an inner wall of which is formed a female screw portion (121b) that screws together with the male screw portion (114a) of the insertion portion (114), the sandwiching member (12), together with the supporting portion (112), sandwiching the processed bone (Bo) in a state in which the sandwiching member (12) has been screwed together with the insertion portion (114) and has come into contact with the processed bone (Bo).
B23Q 3/12 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine for securing to a spindle in general
This cutting machining apparatus (1) comprises: a head (5) to which a tool (20) is fixed; a holding unit (3) for holding a workpiece, the holding unit (3) being disposed facing the head (5); a box-shaped interior case (11) in which a first opening (11a), through which the holding unit (3) is inserted, and a second opening (11b), through which the head (5) is inserted, are punched into a peripheral wall, the interior case (11) being such that a workpiece-holding part (32) of the holding unit (3) and the tool (20) held by the head (5) are disposed therein; a first cover (63) formed from a flexible material, the first cover (63) blocking the holding unit (3) and the outer peripheral part of the first opening (11a) in the interior case (11) from one another; and a second cover (64) formed from a flexible material, the second cover (64) blocking the head (5) and the outer peripheral part of the second opening (11b) in the interior case (11) from one another.
A cutting machining apparatus includes a rectangular box-shaped housing as a whole, a base member fixed to the housing via a cushioning member, a workpiece holder disposed inside the housing to be apart from the housing, fixed to the base member, and holding a workpiece, and a machining unit disposed inside the housing to be apart from the housing, fixed to the base member, and machining the workpiece.
A cutting machining apparatus (1) comprising: a casing (10) having a square box shape overall; a base member (134) fixed to the casing (10) via a buffer member (133); a workpiece-holding unit (30) that is positioned inside the casing (10) so as to be set apart from the casing (10) and is fixed to the base member (134), the workpiece-holding unit (30) holding a workpiece; and a machining unit (20) that is positioned inside the casing (10) so as to be set apart from the casing (10) and is fixed to the base member (134), the machining unit (20) machining the workpiece.
B23Q 1/72 - Auxiliary arrangementsInterconnections between auxiliary tables and movable machine elements
B23Q 1/00 - Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
B23Q 1/01 - Frames, beds, pillars or like membersArrangement of ways
B23Q 1/56 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
F16F 15/04 - Suppression of vibrations of non-rotating, e.g. reciprocating, systemsSuppression of vibrations of rotating systems by use of members not moving with the rotating system using elastic means
H05K 5/00 - Casings, cabinets or drawers for electric apparatus
11.
WORKPIECE HOLDER, PRESSING MEMBER FOR WORKPIECE HOLDER, AND WORKPIECE HOLDING DEVICE
A disk holder (1) comprises: a holder body (11) that has an opening (119) and is arranged so that the thickness direction of a disk (W) is along a central axis (J1) direction of the opening (119) inside the opening (119); and a pressing member (17) that is formed of an elastic material and interposed between the inner wall of the opening (119) and the peripheral portion of the disk (W) in a state where the disk (W) is arranged inside the opening (119). Further, the pressing member (17) has a filling region (A1) filled with a fluid between the pressing member and the inner wall of the opening (119), and the peripheral portion of the disk (W) is pressed by the air pressure of the air filled in the filling region (A1), thereby holding the disk (W) inside the opening (119). The holder body (11) is formed with an introduction path (111) that communicates with the filling region (A1) and serves for introducing air into the filling region (A1).
This rocker arm (2001) is provided with an arm body (2011) including a first portion (2011a), a second portion (2011b), and a third portion (2011c) having a leading end disposed at a position deviated on one surface side of a virtual plane (VP21); a bearing (2012); and two screws (2013) contacting with a valve. The third portion (2011c) has two first lateral pieces (2112d, 2114d) extending from edges of the first portion (2011a). The two valve screws (2013) are provided in a state of being arranged side by side in an oscillation axis direction at the leading end of the third portion (2011c).
A honing tool (1) is provided with: a grinding part (13); a tool main body (12) comprising a first region (121), a second region (122) with a window portion (122a) through which the grinding part (13) is inserted, and a third region (123) fixed on a rotational main axis; an external cylinder (17) having an elongated cylindrical shape fitted around the first region (121) of the tool main body (112); and an extension rod (11) having a bar-like shape inserted inside the tool main body (12). The tool main body (12) further comprises grooves (121c, 122c) for discharging a grinding fluid poured into a gap formed between an outer wall of the tool main body (12) and an inner wall of the external cylinder (17). The external diameter of the external cylinder (17) is no greater than the external diameter of the second region (122).
B24B 55/02 - Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
B24B 33/02 - Honing machines or devicesAccessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
An arm main body (6) includes: a first part (6a) that is provided with a fulcrum shaft insertion hole through which a fulcrum shaft is inserted, and that is supported with freedom to rock by means of the fulcrum shaft which has been inserted through the fulcrum shaft insertion hole; a second part (6b) positioned on the +X-direction side of the first part (6a); and an adjusting portion (7) positioned on the -X-direction side of the first part (6a). A roller (16) which abuts a cam is fixed to the second part (6b), and a screw hole (711) into which is screwed a bolt for fixing a valve abutting portion such as a slipper surface, a pivot component or the like that abuts a valve is provided in the adjusting portion (7). The adjusting portion (7) is disposed in a position offset in the -Y-direction from a first virtual plane (VP1). Furthermore, the arm main body (6) has an annular rib which is situated around the fulcrum shaft insertion hole in the first part (6a), with a shape that follows an outer circumferential portion of the fulcrum shaft, for reinforcing the first part (6a).
A connection device is provided with: a cylindrical holder (31) in which holes (31a) are provided in side walls thereof and an expansion rod (13) is fixed to a top end thereof; steel balls (32) fitted into a recess (22a) provided in a side surface of a wedge rod (22) inserted inside the holder (31) from a bottom end of the holder (31), whereby movement of the wedge rod (22) in relation to the expansion rod (13) is restricted; a cylindrical ring (33) in which a clearance groove is provided in an inside surface thereof, and the ring (33) being capable of assuming a first state and a second state by being rotated about a cylinder axis (J2) of the holder (31) in a state of being fitted onto the holder (31); and a main shaft body (12) and a pin (44) for placing the ring (33) in the first state or the second state by rotating the ring (33).
B24B 45/00 - Means for securing grinding wheels on rotary arbors
B24B 33/02 - Honing machines or devicesAccessories therefor designed for working internal surfaces of revolution, e.g. of cylindrical or conical shapes
The purpose of the present invention is to provide a small-size liquid purification system that makes a sludge-containing liquid discharged from a cyclone-type filtering device into easy-to-handle and solidified briquette-like sludge, and that collects sludge which is resistant to centrifuging with the cyclone-type filtering device and makes such sludge into easy-to-handle and solidified briquette-like sludge. This liquid purification system is characterized by being provided with the following: a filter device 10 in which sludge contained in a liquid which was introduced into a swirl container 13 is centrifuged by generating a swirl flow in the liquid, the liquid from which the sludge was removed by the centrifuging is caused to flow out from the swirl container 13, and sludge-containing liquid which was separated by the centrifuging is discharged from the swirl container 13; a freely openable and closeable adjustment valve 20 that is provided on the downstream side of the filter device 10 and that adjusts the flow rate of the sludge-containing liquid discharged from the swirl container 13; and a deliquifying and solidifying device 30 that includes a filter body 34 to which the sludge-containing liquid is introduced via the adjustment valve 20, which allows the liquid in the sludge-containing liquid to pass therethrough, and which collects the sludge in the sludge-containing liquid, and the deliquifying and solidifying device deliquifies, by a compressing action, the liquid component of liquid-containing sludge which has collected above the filter body, and forms a solidified briquette-like sludge.
C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
B01D 24/00 - Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
B01D 24/44 - Feed or discharge devices for discharging filter cake, e.g. chutes
B01D 29/00 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor
B01D 29/01 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with flat filtering elements
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
B01D 36/00 - Filter circuits or combinations of filters with other separating devices
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B24B 55/12 - Devices for exhausting mist of oil or coolantDevices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
Provided is a sludge deliquoring/solidification apparatus, wherein solidified sludge can be reliably removed from a treatment vessel. The sludge liquoring/solidification apparatus (10) is provided with: a treatment vessel 12, which has a discharge port 12d at the lower end and into which a sludge-containing liquid is introduced; a cover 21, which is for closing the discharge port 12d and has a filter 23 that passes the liquid introduced into the treatment vessel 12 through while accumulating the sludge; an open-close drive unit 22 for opening and closing the discharge port 12d by moving the cover 21; a deliquoring/solidification means 16 for deliquoring and solidifying the sludge on the filter 23; and an extrusion means 15 for extruding the solidified sludge in the treatment vessel 12 from the discharge port 12d.
C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening
B01D 24/44 - Feed or discharge devices for discharging filter cake, e.g. chutes
B01D 29/01 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with flat filtering elements
B01D 29/94 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B24B 55/12 - Devices for exhausting mist of oil or coolantDevices for collecting or recovering materials resulting from grinding or polishing, e.g. of precious metals, precious stones, diamonds or the like
18.
MAGNETIC FILTER DEVICE, LIQUID WASHING SYSTEM AND LIQUID WASHING METHOD
Provided is a magnetic filter device for preventing the reduction in magnetic field strength at positions at a distance from the magnet unit. The magnetic filter device (1A, 1B) is provided with: a processing vessel (6) having a processing chamber (S1) for adsorbing ferromagnetic particles dispersed in the fluid being processed that is flowing therein using magnetic force to filter and remove same from the fluid being processed; a magnet unit (2) in which multiple magnetic poles comprising different magnetic poles are disposed along the direction of flow of the fluid being processed and which is configured so as to be located outside the processing chamber (S1); and one or more magnetic yokes (41), which are provided inside the processing chamber (S1) so as to allow flow of the fluid being processed and which draw magnetic force lines respectively originating in the multiple magnetic poles in directions away from the magnet unit (2) inside the processing chamber (S1).
B01D 35/06 - Filters making use of electricity or magnetism
B03C 1/02 - Magnetic separation acting directly on the substance being separated
B23Q 11/00 - Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling workSafety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
B24B 57/02 - Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
[Problem] To provide a fluid purification device capable of performing suitable filter cleaning while avoiding an increase in device size. [Solution] In a filtration mode, process fluid is supplied from a supply means (80). The process fluid is filtered by a first filter means (82) and a second filter means (84), and is thereafter sent to a machine tool or other apparatus that requires process fluid. In a backwash mode, switching means (88, 89) are switched, and the filtered process fluid in the first filter means (82) is made to flow in reverse to the second filter means (84). The process fluid accumulated in a process fluid accumulation means (86) is made to flow in reverse to the second filter means (84). The second filter means (84) can be backwashed by both the process fluid from the first filter means (82) and the process fluid from the process fluid accumulation means (86).
B03C 1/12 - Magnetic separation acting directly on the substance being separated with cylindrical material carriers with magnets moving during operationMagnetic separation acting directly on the substance being separated with cylindrical material carriers with movable pole pieces
A grind stone (1) attached to a tool on a machine tool is provided with: a grind stone base section (4); an abrasive grain section (3) which contains abrasive grains, is integrated with the grind stone base section (4), and comes into contact with a workpiece; and a cover section (5) covering at least a portion of the outer circumference of the abrasive grain section and the outer surface of the cover section (6) functioning as an attachment surface to which the aforementioned tool is attached. The cover section (5) and the grind stone base section (4) are integrally formed by being sintered. The cover section (5) is formed from a metal sheet material (10) which integrates with the grind stone base section (4) by being sintered.
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
21.
METHOD AND APPARATUS FOR PRODUCING METAL BOND GRINDING WHEEL
Disclosed is a method for producing a metal bond grinding wheel, wherein the power consumption is suppressed. In the method for producing a metal bond grinding wheel, a sintered metal bond grinding wheel is obtained by a sintering step in which a metal bond grinding wheel material obtained by mixing a metal binder powder and abrasive grains is sintered. In the sintering step, the sintered metal bond grinding wheel is obtained by heating the metal bond grinding wheel material containing the metal binder powder with microwaves. The sintering step may be a pressurized sintering step in which the metal bond grinding wheel material is heated with microwaves under a pressure.
B24D 3/00 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents
B24D 3/06 - Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special natureAbrasive bodies or sheets characterised by their constituents the constituent being used as bonding agent and being essentially inorganic metallic
22.
Grindstone contact sensing method and its device, and honing method and honing machine
A grindstone contact sensing technology capable of sensing the contact position of the honing grindstone with the inner circumference of the work at high precision. A servo motor for driving the spindle rotation, and a servo motor for driving the depth of cut are provided and used respectively as spindle rotation drive source for rotating and driving the rotary spindle having the honing tool and depth-of-cut drive source for moving the honing grindstone at a specified depth of cut, and the contact position of the honing grindstone with the inner circumference of the work is sensed from various electrical information (rotating speed, torque, current value, stagnant pulses, etc.) obtained from the operations of both the servo motors.
B24B 49/00 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
23.
WORKING TOOL PROTECTING DEVICE FOR MACHINE TOOL, AND HONING MACHINE
In a machine tool of the type, in which a working tool attached to a rotating main spindle rotates to subject a work to a machining work such as a grinding or cutting operation, there is provided a working tool protecting device for preventing and protecting the damage or fold of the working tool due to an excessive torque load. The working tool is exemplified by a honing machine comprising a magnetic type coupling device (25) interposed between a rotating main spindle (2), to which a honing tool (1) or the working tool is attached, and the servo motor (16) of a main spindle rotating drive unit (3) for rotating the rotating main spindle (2), thereby to transmit the rotating force of the servo motor (16) to the rotating main spindle (2) by the magnetic action. The magnetic transmission torque for transmitting the rotating force of the magnetic type coupling device (25) is set lower than a predetermined torque load (e.g., the folding torque of the honing tool (1)) to be applied to the honing tool (1). As a result, it is possible to prevent and protect the damage or fold of the honing tool (1) due to the excessive torque load.
B24B 49/16 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
patents
