Abstract

A method for connecting sheet metal parts to form lamination stacks and a device for carrying out the method are disclosed. Improved reproducibility of the method and improved reliability of the device can be achieved if the adhesive coating of the dividing element consists of a UV-cross-linked acrylic-based hot-melt pressure-sensitive adhesive (HMPSA).

IPC Classes  ?

• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic

Abstract

The invention relates to a method for stamping and forming packs of sheet metal laminations coated with a bonding varnish to form lamination packs, wherein a brake sleeve is provided in which the sheet metal laminations of the lamination packs, lying on top of one another and with outer edges resting against the inside of the brake sleeve, are acted on with heat from the brake sleeve via the outer edges of the sheet metal laminations so that the bonding varnish is thermally activated, bonding the laminations to one another, characterized in that an additional device for heating the lamination packs is at least temporarily positioned in an axial channel formed by the lamination packs in order to additionally heat the lamination packs.

IPC Classes  ?

• H02K 15/0273 - Laminating the cores

Abstract

An electric motor, more particularly a permanent magnet-excited synchronous motor, is disclosed. In order to draw sufficient energy from a stator winding of a stator of the electric motor and also in order to be able to detect reliable measurement data from a rotor of the electric motor, it is proposed for the energy-harvesting device and the measuring device to be provided on the rotor, wherein the energy-harvesting device has at least one electrode for drawing electrical energy from an electrical field that forms as a counter electrode between this electrode and an end turn, which electrode extends in a circumference direction of the rotor and is positioned next to an end surface of the rotor.

IPC Classes  ?

• H02K 7/20 - Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
• H02K 11/25 - Devices for sensing temperature, or actuated thereby
• H02K 11/35 - Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis
• H02K 11/40 - Structural association with grounding devices
• H02K 21/14 - Synchronous motors having permanent magnetsSynchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures

Abstract

The invention relates to a method for connecting sheet-metal parts (2) to form at least one lamination stack (3). In order to create especially precise and stable lamination stacks, according to the invention, the sheet-metal parts (2) are adhesively bonded to one another at most in regions in the entry region (18a) of the stacking device (17), in order to avoid deformation, more particularly dishing in, of the sheet-metal parts (2) in the entry region (18a).

IPC Classes  ?

• B23P 15/00 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
• H01F 3/02 - Cores, yokes or armatures made from sheets
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• B21D 28/22 - Notching the peripheries of circular blanks, e.g. laminations for dynamo-electric machines
• B21D 43/22 - Devices for piling sheets
• B23K 20/00 - Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
• B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 38/04 - Punching, slitting or perforating
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

The invention relates to a method for producing a rigid connection between a laminated core (2, 16, 17), which has a plurality of sheet metal parts (4) that are rigidly connected together, in particular in a bonded manner, and an inner hollow component (3). According to the invention, an elastic deformation element (6) is introduced into the inner hollow component (3), and the inner hollow component (3) is expanded outwards in a sub- section (AP) of the longitudinal section (A) by means of the deformation element (6) by exerting a pressure (D), wherein a contact surface (8) of the deformation element (6) rests against the inner hollow component (3) upon expanding the inner hollow component, said contact surface being located in the region of the sub-section (AP).

IPC Classes  ?

• H02K 1/06 - Details of the magnetic circuit characterised by the shape, form or construction
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures

Abstract

The invention relates to a method for connecting lamination parts (2) to form lamination stacks (3) and to a device (1) for carrying out the method. Improved reproducibility in the method and improved stability on the device can be achieved if the adhesive coating (20) of the separating element (18) consists of a UV cross-linked hot-melt adhesive (HMPSA) based on acrylate.

IPC Classes  ?

• B32B 37/26 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the laminating process, e.g. release layers or pressure equalising layers

Abstract

The invention relates to a method for punch-bundling laminations, coated with a baked enamel, to form laminated cores, wherein a brake sleeve is present in which the laminations of the laminated cores, one on top of the other and with end faces resting against the inside of the brake sleeve, are subjected to heat from the brake sleeve via the end faces of the laminations, such that the baked enamel is thermally activated so as to bond the laminations to one another, characterised in that a further apparatus for heating the laminated cores is at least intermittently disposed in a axial channel formed by the laminated cores in order to additionally heat the laminated cores.

IPC Classes  ?

• H05B 6/38 - Coil arrangements specially adapted for fitting into hollow spaces of workpieces
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

A device and a method for connecting sheet metal parts to form lamination stacks in which sheet metal parts are separated from an electrical steel strip using a stamping stage equipped with a punch, wherein the electrical steel strip has a thermally activatable hot-melt adhesive varnish layer on at least one of its flat sides, the separated sheet metal parts are stacked and integrally bonded to one another to form multiple lamination stacks through activation of the hot-melt adhesive varnish layer, wherein a parting compound is applied to the electrical steel strip and/or separated sheet metal part in order to make it easier to divide the stacked sheet metal parts into lamination stacks. In order to achieve advantageous conditions, it is proposed for the punch of the stamping stage to apply a liquid fluid as a parting compound onto the electrical steel strip and/or separated sheet metal part.

IPC Classes  ?

• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

The invention discloses an electric motor (1), in particular a synchronous motor with permanent-magnet excitation. In order to be able to draw sufficient energy from a stator winding (4) of a stator (3) of the electric motor (1) and additionally capture reliable measurement data from a rotor (2) of the electric motor (1), the invention proposes that the energy-harvesting device (10) and the measuring device (13) are provided on the rotor (2), wherein the energy-harvesting device (10) has at least one electrode (11a, 11b) for drawing electrical energy from an electric field (14) that forms between said electrode (11a, 11b) and the end winding (5a, 5b, 5c) as a counterelectrode, said electrode (11a, 11b) extending in the circumferential direction (U) of the rotor (2) and being arranged next to the end side (2a) of the rotor (2).

IPC Classes  ?

• H02K 7/20 - Structural association with auxiliary dynamo-electric machines, e.g. with electric starter motors or exciters
• H02K 11/25 - Devices for sensing temperature, or actuated thereby
• H02N 1/00 - Electrostatic generators or motors using a solid moving electrostatic charge carrier
• H02K 11/00 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection

Abstract

A method and a device for connecting sheet metal parts to form lamination stacks, wherein a sheet metal strip whose top and/or bottom surface has a hardenable polymer adhesive layer is transported continuously through an application device in which a fluid that contains an activator is applied to the adhesive layer, the applied fluid is dried, the sheet metal strip that is coated with the dried activator is continuously fed to a strip accumulator, the sheet metal strip from the strip accumulator is fed to a cyclically operating cutting device in which sheet metal parts are cut from the sheet metal strip and stacked on one another, and the cut and stacked sheet metal parts are connected to one another to form lamination stacks by means of the adhesive layers that are coated with the activator. The invention also relates to the lamination stacks produced according to the method.

IPC Classes  ?

• H01F 3/02 - Cores, yokes or armatures made from sheets
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only

Abstract

A device and a method for connecting lamination parts (2) to form lamination stacks (3) are disclosed, in which lamination parts (2) are separated from, in particular cut off, an electric strip (5) with the aid of a punching stage (11) having a punch (13), wherein the electric strip (5) has, on at least one of its flat sides (6, 7), a preferably thermally activatable hot-melt adhesive varnish layer (8), in particular bonding varnish layer, the separated lamination parts (2) are stacked and connected together in a materially bonded manner to form a plurality of lamination stacks (3) by activation of the hot-melt adhesive varnish layer (8), wherein a release agent (17) is applied to the electric strip (5) and/or to the separated lamination part (2) in order in this way to make it easier to split the stacked lamination parts (2) into lamination stacks (3). In order to create advantageous conditions, it is proposed that the punch (13) of the punching stage (11) apply an, in particular liquid, fluid (17.1) as release agent (17) to the electric strip (5) and/or to the separated lamination part (2).

IPC Classes  ?

• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• B32B 37/26 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the laminating process, e.g. release layers or pressure equalising layers
• B32B 38/04 - Punching, slitting or perforating
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

A method for connecting lamination parts to form lamination stacks. In order to ensure a versatile applicability of the lamination stacks, it is proposed that first cut-outs are stamped out identically in the first sub-region and in a second sub-region of the electric strip, additional second cut-outs are stamped into the second sub-region in accordance with the number of spacers, which second cut-outs are embodied to accommodate the spacers, and a second lamination part stamped out from the second sub-region is stacked either before or after the first lamination part in such a way that when spacers of the first lamination part are resting against this second lamination part, the second cut-outs are positioned offset from these spacers.

IPC Classes  ?

• B32B 37/02 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
• B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• B32B 38/00 - Ancillary operations in connection with laminating processes
• B32B 38/06 - Embossing
• B32B 38/18 - Handling of layers or the laminate
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

A method for connecting lamination parts to form a lamination stack in which lamination parts are stamped out from an electrical strip that is coated with an activatable adhesive layer on at least one of its flat sides and the stamped-out lamination parts are stacked and glued to form lamination stacks, wherein before the lamination parts are stamped out, the electrical strip is embossed in a first sub-region, which produces multiple protruding spacers on at least one flat side of the electrical strip, which spacers, after a first lamination part is stamped out from this first sub-region, facilitate a detachment of the stacked and glued lamination parts into lamination stacks.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 5/26 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer another layer also being fibrous or filamentary
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

The invention relates to a housing (100), in particular for high-voltage components, to a high-voltage distributor, and to a vehicle having said housing, said housing having an elongate, metal housing base (1) and two end walls (3, 4). According to the invention, in order to make said housing (100) particularly stable, the housing base (1) comprises a closed hollow profiled element (6, 60), which has four profiled-element side walls (6.1, 6.2, 6.3, 6.4) and two open profiled-element ends (6.5, 6.6), and the end walls (3, 4), which are produced from sheet metal, close the open profiled-element ends (6.5, 6.6) of the hollow profiled element (6, 60) and are fixedly connected to the hollow profiled element (6, 60), for which purpose the end walls (3, 4) each have a trough-shaped portion (3.1, 4.1) with a trough side wall (3.4, 4.4) and have an end portion (3.2, 4.2), which end portion (3.2, 4.2), together with the trough side wall (3.4, 4.4) of the trough-shaped portion (3.1, 4.1), forms a socket (7.1, 7.2), which extends peripherally on the outside and in particular is u-shaped and into which the hollow profiled element (6, 60) engages while contacting the end wall (3, 4) in question, in particular the trough side wall (3.4, 4.4).

IPC Classes  ?

• B60R 16/023 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided forArrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for transmission of signals between vehicle parts or subsystems
• H05K 5/00 - Casings, cabinets or drawers for electric apparatus

Abstract

The invention relates to a method and to a device for connecting lamination parts (40) to form lamination stacks (46), wherein a metal strip (12), the upper side (17) and/or lower side (18) of which has a curable, polymeric adhesive layer, is continuously transported through an application device (15, 15 '), in which a fluid (16, 16') containing an activator is applied to the adhesive layer, the applied fluid (16, 16') is dried, the metal strip (12) coated with the dried activator is continuously fed to a strip accumulator (20). The metal strip (12) is conveyed from the strip accumulator (20) to a clocked separating device (30), in which lamination parts (40, 41, 42) are separated from the metal strip (12) and are stacked one on top of the other. The lamination parts (40) that were separated and stacked one on top of the other are combined to form lamination stacks (46) by means of the adhesive layers coated with the activator. The invention further relates to the lamination stacks produced according to the method.

IPC Classes  ?

• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• B32B 7/14 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
• B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
• B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
• H01F 27/245 - Magnetic cores made from sheets, e.g. grain-oriented
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic

Abstract

A device and a method for connecting lamination parts to form a lamination stack, in which lamination parts are punched out from an electrical strip that is coated on at least one of its flat sides with a hot-melt adhesive varnish layer, the lamination parts that have been punched out are stacked, and then connected in an integrally joined manner through thermal activation of the hot-melt adhesive varnish layer to form a plurality of lamination stacks. Before the lamination parts are punched out, the electrical strip is prepared in a subregion of the hot-melt adhesive varnish layer in such a way that after the lamination part is punched out, this lamination part facilitates separation of the stacked lamination parts into lamination stacks. In the preparation of the electrical strip, the layer thickness of the hot-melt adhesive varnish layer on the electrical strip is at least reduced through removal by laser light in order to produce the subregion.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 27/16 - Layered products essentially comprising synthetic resin specially treated, e.g. irradiated
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• B32B 38/00 - Ancillary operations in connection with laminating processes
• B32B 38/04 - Punching, slitting or perforating

Abstract

An apparatus and method for bonding sheet metal parts to a laminated core in which sheet metal parts are punched from an electrical steel strip, the punched sheet metal parts are stacked and bonded at least integrally to form a plurality of laminated cores, and in order to facilitate the separation of the integrally bonded sheet metal parts into laminated cores, a separating agent is provided at least between two stacked sheet metal parts in that with the punching stage for punching the sheet metal part, the separating agent is both punched from a separating agent support and provided to the sheet metal part. In order to embody the application of a geometrically accurate separating agent in a reproducible and simple way, it is proposed that the separating agent be punched from the sheet-like separating agent support that is supplied below the electrical steel strip.

IPC Classes  ?

• B32B 38/00 - Ancillary operations in connection with laminating processes
• B32B 7/00 - Layered products characterised by the relation between layers Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties Layered products characterised by the interconnection of layers
• B32B 37/00 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
• H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
• B32B 38/04 - Punching, slitting or perforating
• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 37/12 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
• B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
• B32B 37/26 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the laminating process, e.g. release layers or pressure equalising layers
• B32B 38/18 - Handling of layers or the laminate
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Abstract

The invention relates to a method for connecting lamination parts (2) to form a lamination stack (3), in which lamination parts (2) are punched out from an electrical steel strip (5), which is coated on at least one of the flat sides (6, 7) thereof with an activatable adhesive layer (8, 9), in particular a hot-melt adhesive layer, and the punched-out lamination parts (2) are stacked and are adhesively bonded to form lamination stacks (3), the electrical steel strip (5) being embossed in a first subregion (5.1) before lamination parts (2) are punched out, a plurality of spacers (20.1, 20.2) protruding on at least one flat side (6, 7) of the electrical steel strip (5) being produced by the embossing, by means of which spacers (20.1, 20.2) the separating of the stacked and adhesively bonded lamination parts (2) into lamination stacks (3) is facilitated after a first lamination part (2) has been punched out from said first subregion (5.1). In order to achieve separation that is simple with respect to process, it is proposed that spacers (20.1, 20.2) protruding from both flat sides (6, 7) of the electrical steel strip (5) are produced in the first subregion (5.1) by embossing and that the first lamination part (2) is provided as a separating element (10.1, 10.2, 10.3) between the lamination parts (2) adhesively bonded to each other, which separating element is separate from the lamination stacks (3).

IPC Classes  ?

• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

The invention relates to a method for connecting lamination parts (2, 2.1, 2.2) in order to form lamination stacks (3, 30). The aim of the invention is to ensure a multifaceted applicability of the lamination stacks. This is achieved in that first recesses (22.1) are punched in an identical manner in a first and second sub-region (5.1, 5.2) on the electrical sheet strip (5); additional second recesses (22.2) are punched in the second sub-region (5.2) in accordance with the number of spacers (20), said second recesses (22.2) being designed to receive the spacers (20), and a second lamination part (2.2) which is punched free from the second sub-region (5.2) is either stacked in front of or behind the first lamination part (2.1) such that when spacers (20) of the first lamination part (2.1) are resting against the second lamination part (2.2), the second recesses (22.2) are offset relative to the spacers (20).

IPC Classes  ?

• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

A device and a method for connecting sheet metal parts to form lamination stacks are demonstrated, in which sheet metal parts are stamped out of an electrical steel strip by means of at least one stamping stage, which has a die and a cutting edge that cooperates with the die, and the stamped-out sheet metal parts are stacked and at least integrally joined to form a plurality of lamination stacks; at least between a first sheet metal part of the stacked sheet metal parts and the subsequent second sheet metal part of the stacked sheet metal parts, a separating element is provided in order to facilitate the separation of the integrally joined sheet metal parts in lamination stacks. In order to improve the reproducibility of the method, when applying the separating element, it is proposed that after the first sheet metal part is stamped out and before the second sheet metal part is stamped out, the separating element which, in accordance with the die geometry, is smaller or of the same size is conveyed to the die, is inserted into said die, and is thus provided to the first sheet metal part.

IPC Classes  ?

• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformersApparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• B21D 22/02 - Stamping using rigid devices or tools
• H01F 3/02 - Cores, yokes or armatures made from sheets
• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
• B32B 27/00 - Layered products essentially comprising synthetic resin
• C21D 8/12 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
• B32B 37/26 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer which influences the bonding during the laminating process, e.g. release layers or pressure equalising layers
• B21D 43/22 - Devices for piling sheets

Abstract

A forming tool for forming a metal sheet, having an upper tool part and a movable sheet holder that is supported against the lower tool part, and having a locking device, which is provided between the sheet holder and a hold-down and has at least one spacer element that is supported so that it is able to move from a rest position into a working position as a function of a relative movement, which occurs during the closing of the forming tool. The forming tool also has a wedge drive with a slider and a driver, the slider that is equipped with the spacer element is supported so that it is able to move in contact with the driver as a function of the relative movement that occurs between the sheet holder and the upper tool part during the closing of the forming tool, in order to move the spacer element into its working position.

IPC Classes  ?

• B21D 24/04 - Blank holdersMounting means therefor
• B21D 22/22 - Deep-drawing with devices for holding the edge of the blanks

Abstract

The invention relates to a device (1) and a method for connecting lamination parts (2) to form a lamination stack (3), in which method lamination parts (2) are punched out of an electrical steel strip (5), the punched-out lamination parts (2) are stacked and are joined at least integrally to form multiple lamination stacks (3). To make it easier to separate the integrally joined lamination parts (2) into lamination stacks (3), a separation means (20) is provided at least between two stacked lamination parts (2), wherein the separation means (20) is both punched out from a separation means support (21) and provided on the lamination part (2) using the punching stage (18) for punching out the lamination part (2). According to the invention, to make the application of a precisely shaped separation means reproducible and simple, the separation means (20) is punched out from the sheet-like separation means support (21) guided under the electrical steel strip (5).

IPC Classes  ?

• H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies

Goods & Services

Machine tools; machines and machine tools for the treatment of materials; machines for producing laminated cores; die-cutting machines; machine tools, namely follow-on punching tools; machine tools, namely follow-on composite tools; electric motors and engines and parts thereof for machines and machine tools; rotors and stators for electric motors. Electric motors and engines and parts thereof for vehicles and transportation means. Custom assembling of materials for others; treatment of materials and material conversion of metal sheets and metal strips; die-cutting of sheet metal parts; producing laminated cores.

Goods & Services

Custom assembling of materials for others; [ metal treatment of materials and material conversion of metal sheets and metal strips; die-cutting of sheet metal parts; ] producing laminated cores, namely, plating, laminating, stacking and forming of sheet metal parts [ Machine tools, namely, metalworking machine tools, material handling machines, grinding machines, milling machines, molding presses, punching presses for metalworking, laminating machines, electrostatic coating machines, stacking machines; bending, cutting, broaching and lapping machines for metalworking; metal forming machines; machine tools, namely, powered machines for cutting or shaping or finishing metals; rolling machines for rolling metals; machines for producing laminated cores; die-cutting machines; machine tools, namely, follow-on punching tools in the nature of punching presses for metalworking; machine tools, namely, follow-on composite tools in the nature of cutting machines, metal forming machines, laminating and stacking machines; electric motors and engines and parts thereof for machines and machine tools; ] rotors and stators for electric motors, not for land vehicles [ Electric motors and engines and ] parts [ thereof ] of electric motors and engines for vehicles and transportation devices

Goods & Services

Machine tools; Machines and machine tools for the treatment of materials; Machines for packaging sheets and plates of metal; Die-cutting machines; Follow-on punching tools; Follow-on composite tools; Electric motors and engines and parts thereof for machines and machine tools; rotors and stators for electric motors. Electric motors and engines and parts thereof for vehicles and transportation means. Custom assembling of materials for others; Treatment of materials and material transformation of metal sheets and metal strips; Punching of sheet metal parts; Packaging of sheets and plates of metal.