Clamping device and clamping method for hairpin-shaped parts

Abstract

The invention relates to a clamping device (20) for clamping at least one thread element of a plurality of thread elements, wherein the clamping device (20) is designed to clamp thread elements of different geometric shapes, wherein the thread element comprises a first thread element end section (16) and a second thread element end section (17). The clamping device (20) comprises a body (21) and a first clamping device (25) having a first clamp (27), wherein the first clamping device (25) is designed to clamp the first thread element end section (16) or the second thread element end section (17) of a predetermined thread element by means of the first clamp (27). The clamping device also has a second clamping device (26), which includes a second clamper (28) arranged so that it can move relative to the body (21), wherein the second clamping device (26) is designed to move the second clamper (28) relative to the first clamper (27) so that the second clamper (28) clamps a predetermined thread element at the second thread element end section (17) or at the first thread element end section (16).

Description

[0001] The invention relates to a clamping device for clamping at least one electrically conductive component and to a method for clamping at least one electrically conductive component by means of a clamping device according to the invention.

[0002] In particular, the clamping device and the clamping method can be used in the production of components of an electric machine provided with a coil. In particular, the clamping device and the clamping method can be used in the production of a stator of an electric machine, wherein the hairpin is inserted into a groove of a housing of the stator. In this case, the clamping device and the method are particularly suitable for clamping an electrically conductive component for a stator or a rotor of an electric machine, which electrically conductive component can be configured as a hairpin or an electrical conductor.

[0003] In particular, an electric machine is understood to be a machine for converting electrical energy into kinetic energy and / or a machine for converting kinetic energy into electrical energy. In particular, the term should be understood to refer to electric motors and generators.

[0004] A hairpin is a U-shaped electrical conductor that is inserted into an electric machine. The electrical conductor is inserted into the lamination stack of the electric machine from one side. In one embodiment of a method for manufacturing a coil winding for a component of an electric machine, the electrical conductor is expanded, twisted, cut, and then welded together on the opposite side after insertion. This results in a closed circuit.

[0005] The coil winding of a component for an electric machine can be composed of several so-called hairpin crowns. For example, these hairpin crowns are hairpin-shaped pieces arranged in a ring, which have been joined before being inserted into the component for insertion. In an embodiment of this method, the crowns differ from each other in terms of their respective diameters. For example, the crown portion is an outer crown, a middle crown and an inner crown. In turn, each crown can be formed by at least two layers of hairpins or hairpin limbs. Hairpin limbs refer to the two conductive component end portions of the hairpin, i.e., the ends or end regions. For example, in the lamination stack of the stator and / or rotor, the hairpin of the crown can have one limb located in the inner layer and another limb located in the outer layer. The hairpin can also have two limbs located in the same layer, i.e., the outer layer or the inner layer.

[0006] The coil winding of a component of an electric machine can be formed by several hairpins of different configurations. In this case, the hairpins may differ in several aspects. For example, the hairpins may differ in terms of a roof-shaped bend, a 3D bend and / or an offset bend. Among other aspects, the roof-shaped bend affects the spacing of two limbs from each other or the number of grooves of a component that bridges from one limb to another limb, such as, in particular, a stator and / or a rotor. Depending on which crown the hairpin is associated with, the 3D bend in the end turn portion may differ from one another due to a specific crown diameter. The offset bend defines which limb is arranged in which layer of the component. The combination of these three forming steps - roof-shaped bend, 3D bend and / or offset bend - defines the geometry of the hairpin. These hairpins of different geometries will be clamped with standardized clamping equipment for further processing.

[0007] In one embodiment of the method for manufacturing a coil winding, after all the forming steps have been performed, all the hairpins are clamped in a defined manner in the assembly machine for subsequent assembly. For example, pre-fitting the hairpins to form the crown may constitute a subsequent step. In order to be able to perform a defined positioning process, it should be possible to clamp the hairpins at both limbs.

[0008] In one embodiment of the method for producing a component of an electric machine, a hairpin is fitted to form a crown in order to subsequently form therefrom a coil for a component, such as in particular a stator and / or a rotor. In this respect, for example,

[0009] [1] WO 2018 / 233774 A1

[0010] A device for manufacturing a machine element, such as a stator or a rotor, provided with a winding for an electric machine is described. The electric machine comprises at least one auxiliary device for providing a pre-assembled hairpin aligned with the machine element to be manufactured. The device also comprises insertion means for removing the aligned hairpin from the auxiliary device and introducing the hairpin into the machine element.

[0011] also,

[0012] [2] WO 2018 / 233771 A1

[0013] A device for inserting an electrical conductor into a machine element of an electric machine comprises, for this purpose, a collecting receptacle for providing an assembly of one or several crowns formed by electrically conductive hairpins and an insertion device for removing the crown assembly from the collecting receptacle and introducing the crown assembly into the machine element.

[0014] From a technical point of view, the very different geometries of the hairpins of the stator and / or rotor present a challenge for handling. Especially if all clamping and handling processes are to be performed with a single clamping device. The many different limb positions of the hairpins make the clamping device or clamping system very complex and expensive.

[0015] Therefore, the object of the present invention is to provide a clamping device and a method for clamping at least one electrically conductive component, which can be performed particularly easily and reliably, in particular for various limb positions of a hairpin-shaped piece, and at low cost.

[0016] To achieve this object, the invention creates a clamping device for clamping at least one electrically conductive component having the features of the independent patent claim, a method for clamping at least one electrically conductive component having the features of the independent patent claim, and a hairpin handling device for handling hairpins for manufacturing coil windings of components for electric machines having the features of the independent patent claim. Advantageous embodiments of the invention are indicated in the dependent patent claims.

[0017] According to one aspect of the present invention, the present invention creates a clamping device for clamping at least one conductive member among a plurality of conductive members, wherein the clamping device is configured to clamp conductive members of different geometric shapes, wherein the conductive member comprises a first conductive member end portion and a second conductive member end portion, and the clamping device comprises:

[0018] - substrate,

[0019] a first clamping device comprising a first clamp, wherein the first clamping device is configured for clamping a first conductive member end portion or a second conductive member end portion of a predetermined conductive member by means of the first clamp, and

[0020] - a second clamping device, which includes a second clamper, which is arranged to be movable relative to the base, wherein the second clamping device is configured to move the second clamper relative to the first clamper so that the second clamper clamps a predetermined conductive member at the end portion of the second conductive member or at the end portion of the first conductive member.

[0021] Preferably, the first holder is configured to be fixed relative to the base body.

[0022] Preferably, the clamping device is configured to clamp the coil member, in particular a conductive pin, more particularly a hairpin, bent into a U-shape.

[0023] Preferably, the first gripper and / or the first gripper device and / or the first arm member on which the first gripper is arranged is arranged to be movable relative to the base body and / or relative to the second gripper.

[0024] Preferably, the first clamper and / or the first clamping device and / or the first arm member on which the first clamper is arranged is arranged to be linearly movable.

[0025] Preferably, the first holder and / or the first holding device and / or the first arm member are mounted in a rotatable manner, in particular in a rotatable manner about a pivot axis.

[0026] Preferably, the first clamper is rotatable around the center of the first conductive member end portion or the second conductive member end portion to be clamped.

[0027] Preferably, the first clamp and the second clamp are arranged offset relative to each other with respect to the height of the first clamp and the second clamp, in particular in the vertical direction of the clamping device.

[0028] Preferably, the clamping device comprises a movement unit, in particular a first movement unit, which is configured to move the first clamper and / or the first clamping device and / or the first arm member on which the first clamper is arranged relative to the base body.

[0029] Preferably, the second clamping device comprises a moving unit configured to move the second clamper relative to the base body.

[0030] Preferably, the moving unit has a first gear and a second gear on which the second holder is arranged, wherein the first gear meshes with the second gear.

[0031] Preferably, the moving unit further comprises a driving unit, and the driving unit is further preferably configured to drive the first gear to move the second gear.

[0032] Preferably, the second clamping device comprises a receiving unit on which the second gear is arranged, wherein the receiving unit comprises at least one receiving portion, wherein the second gear has at least one guide member extending into the receiving portion, wherein the receiving portion determines the trajectory of the second clamper.

[0033] Preferably, the receiving portion has a circular arc shape. Preferably, during movement of the second gear, the guide member is guided in the receiving portion such that the second holder moves at least partially along a circular path.

[0034] Preferably, the receiving portion is configured as a groove or an elongated hole.

[0035] Preferably, the second clamping device or the clamping apparatus comprises a movement unit, in particular a second movement unit, which is configured to move the second clamper and / or the second arm member on which the second clamper is arranged relative to the base body.

[0036] Preferably, the second gripper device comprises a moving unit configured to move the second gripper and / or the second arm member on which the second gripper is arranged relative to the base body along a circular path.

[0037] Preferably, the second clamp and / or the second arm member on which the second clamp is arranged is mounted in a rotatable manner, in particular in a rotatable manner around a pivot axis, wherein the second clamping device comprises a moving unit which is configured to rotate the second clamp and / or the second arm member.

[0038] Preferably, the base comprises a base plate, wherein the first arm member and the second arm member are arranged on the base plate. Preferably, the two arm members extend vertically relative to the base plate. Preferably, the first clamping device is arranged on the first arm member, and the second clamping device is arranged on the second arm member.

[0039] Preferably, the first clamp and the second clamp each have two clamping jaws, wherein the respective clamping surface of the respective clamping jaw has a concave configuration.

[0040] Preferably, the first clamp has two clamping jaws, wherein one clamping jaw comprises in each case two clamping jaw members, wherein a first clamping jaw member of the first clamping jaw is associated with a first clamping jaw member of the second clamping jaw, and the second clamping jaw member of the first clamping jaw is associated with a second clamping jaw member of the second clamping jaw, wherein the first clamping jaw member and the second clamping jaw member are arranged opposite to each other.

[0041] Preferably, the first clamp is configured as a double clamp.

[0042] Preferably, the basic body can be articulated to a transport device for moving the holding device.

[0043] According to another aspect, the invention relates to a hairpin handling device for handling hairpins for manufacturing coil windings of components for electric machines, the hairpin handling device comprising a clamping device according to any one of the preceding embodiments.

[0044] Preferably, the hairpin handling apparatus comprises a transport device for moving the clamping device and a control system.

[0045] According to another aspect, the invention relates to a method for clamping at least one electrically conductive component by means of a clamping device having a base body, a first clamping device comprising a first clamp and a second clamping device having a second clamp arranged to be movable relative to the base body, the method comprising the following steps:

[0046] - clamping the first conductive member end portion or the second conductive member end portion of each predetermined conductive member at a predetermined position by means of a first clamper of a first clamping device;

[0047] - moving the second holder relative to the first holder to adjust to the position of the second conductive member end portion of the predetermined conductive member or the first conductive member end portion of the predetermined conductive member, and

[0048] - Clamping the second conductive member end portion of the conductive member or the first conductive member end portion of the conductive member by means of the second clamper.

[0049] In this case, the order of the method steps is in principle variable. In particular, the second clamp can be moved relative to the first clamp to adjust to the position of the second conductive component end portion of the conductive component before clamping the first conductive component end portion. In addition, the two conductive component end portions can be clamped simultaneously, in particular after the second clamp has been oriented for the first time.

[0050] Preferably, the second clamper moves along a predetermined circular path toward the second conductive member end portion or the first conductive member end portion to clamp the second conductive member end portion of the predetermined conductive member or the first conductive member end portion of the predetermined conductive member.

[0051] Preferably, several conductive members are clamped one after another in time by means of a clamping device, wherein before clamping the respective conductive member end portion the conductive member is rotated about the limb axis of one of the two conductive member end portions so that the other conductive member end portion is arranged on a circular path.

[0052] It is particularly preferred that several conductive components are clamped one after another in time using a clamping device, wherein, before clamping the corresponding conductive components, the clamping device is oriented relative to the conductive components to be clamped separately, and the second clamper is moved relative to the first clamper so that the first conductive component part and the second conductive component part of the conductive component can be clamped by the first clamper and the second clamper respectively at the same time.

[0053] In this case, the control system of the clamping device obtains information, for example, about the specific geometry of the conductive component to be respectively clamped, such as the spacing between two conductive component parts and their positions on the feeding device, for example, from a feeding device for feeding the conductive component to the clamping device. The control system then orients the clamping device relative to the conductive component to be clamped and then positions the second clamper relative to the first clamper so that the first conductive component part can be clamped by the first clamper and, at the same time, the second conductive component part can be clamped by the second clamper.

[0054] Preferably, after clamping the predetermined conductive component, the conductive component is preassembled, in particular prefitted, into the adapter nesting by means of the clamping device.

[0055] Preferably, several conductive members are pre-fitted one after the other in time to form the crown.

[0056] Preferably, for pre-fitting, the first clamping device and the second clamping device are positioned such that the first clamp is arranged inside the circular path and the second clamp is arranged outside the circular path.

[0057] Preferably, for pre-fitting, the first clamping device and the second clamping device are positioned such that the first clamp is arranged outside the circular path and the second clamp is arranged inside the circular path.

[0058] Preferably, for pre-fitting, the first clamping device and the second clamping device are positioned such that the first clamp is arranged outside the circular path and the second clamp is arranged outside the circular path.

[0059] Preferably, for pre-fitting, the first clamping device and the second clamping device are positioned such that the first clamp is arranged inside the circular path and the second clamp is arranged inside the circular path.

[0060] Embodiments of the present invention relate to a clamping device for clamping at least one of several conductive members, wherein the conductive members to be clamped have different geometries, wherein the conductive members include a first conductive member end portion and a second conductive member end portion. "Conductive member" refers to an electrical conductor or conductive element, such as preferably a hairpin-shaped piece. In particular, "different geometries" particularly means that not all conductive members have the same configuration. In other words, for example, the limb spacing, i.e., the spacing between the conductive member end portions of the respective conductive members to be clamped, may be different or dissimilar, i.e., vary. In several conductive members, the individual conductive members may also have the same or identical configuration. In particular, the "conductive member end portion" may be a limb of a hairpin-shaped piece. The "conductive member end portion" is preferably an end region or end or end portion or conductor end of the at least one conductive member. In particular, a common attachment point may serve as a basis for clamping the two conductive member end portions of the at least one conductive member. In particular, "clamping" may include picking up and / or holding and / or picking up the at least one conductive member.

[0061] Preferably, the clamping device is configured to clamp a coil member, in particular a conductive pin, preferably a hairpin, bent into a U-shape. The at least one conductive member preferably has a three-dimensional shape or a 3D shape. In particular, the at least one conductive member is configured to have a U-shaped bend. The at least one conductive member can have several angles, thereby forming a roof shape, which is also referred to as a house roof shape. In this case, the angle and limb length of the conductive member can vary according to the desired shape. In the roof-shaped area of ​​the conductive member, the at least one conductive member is preferably bent in a direction extending perpendicular to the plane of the conductive member, thereby forming a bend in the roof-shaped area.

[0062] The clamping device comprises a base, a first clamping device and a second clamping device. The first clamping device has a first clamp. In particular, the "base" can be a frame or a support. The "clamp" can be a device that particularly comprises at least two movable claws or clamping claws and by means of which an element or component or workpiece can be picked up and brought or moved to another location or position or place. The first clamping device is configured to clamp a first conductive component end portion or a second conductive component end portion of a predetermined conductive component by means of the first clamp. Preferably, the first clamping device can pick up a predetermined conductive component at the first conductive component end portion or the second conductive component end portion, in particular at a clamping position or clamping point predetermined for the first clamp. The second clamping device comprises a second clamp, which is arranged to be movable relative to the base or the first clamping device. In other words, the second clamp is mounted in a movable manner. In other words, the second clamp can be moved relative to the base or the first clamping device. In particular, the substrate remains fixed, i.e. does not move, during the process. In addition, the second clamping device is configured to move the second clamp relative to the first clamp so that the second clamp clamps a predetermined conductive member at the second conductive member end portion or at the first conductive member end portion. Preferably, the second clamp can be driven or moved toward the second conductive member end portion or the first conductive member end portion, and in particular clamps or picks up the second conductive member end portion or the first conductive member end portion at a clamping position or clamping point predetermined for the second clamp. In other words, the second clamp is particularly driven toward a predetermined clamping point so that the second conductive member end portion or the first conductive member end portion can be clamped in a defined manner. Particularly preferably, the second clamp is configured to be driven toward different positions of the second conductive member end portion or different limb positions of the conductive member.

[0063] The gripper, which is preferably fixed relative to the base body, can be driven, for example together with the base body, towards a defined pick-up position to which the first conductive component parts of all conductors to be clamped are conveyed. Depending on the different relative positions of the conductor component parts, the position of the second gripper can be adjusted relative to the first gripper. Thus, the gripping device can be adapted in a simple manner to different hairpins, for example, wherein the hairpin can always be precisely positioned.

[0064] In particular, the movable second clamp produces the advantage that it can be moved towards the respective conductive component end portion of the at least one conductive component. Thus, the respective conductive component can be clamped in a particularly simple and reliable manner. Furthermore, since the conductive component is clamped in a defined manner, fast clamping movements can be performed by the clamping device without causing vibrations of the conductive component. Furthermore, the actuator - the second clamp - can be driven towards different limb positions, whereby the clamping device is constructed in a particularly compact and / or cost-effective manner.

[0065] An advantageous embodiment provides that the first clamp is configured to be fixed relative to the substrate. In other words, the first clamp is not movable relative to the substrate. In other words, the first clamp is configured to be immovable. In particular, the first clamp can be arranged on the substrate in an immovable manner. Therefore, only the second clamp can be moved relative to the substrate, while the first clamp cannot. In particular, the first clamp can remain in the position of the first clamp during the clamping process, i.e. during the clamping of the at least one conductive component, while the second clamp is moved. Due to the movable configuration of one of the two clamps, the structure of the clamping device has a particularly compact and simple design.

[0066] Alternatively, the first gripper and / or the first arm member on which the first gripper is arranged and / or the first gripping device can be arranged to be movable relative to the substrate and / or relative to the second gripper. In other words, the first gripper and / or the first arm member on which the first gripper is arranged and / or the first gripping device are mounted in a movably manner. In other words, the first gripper can be moved relative to the substrate or the second gripping device. In particular, the substrate remains fixed, i.e. does not move, during this process. In addition, the first gripping device is preferably configured to move the first gripper relative to the second gripper so that the first gripper clamps a predetermined conductive member at the first conductive member end portion or at the second conductive member end portion. Preferably, the first gripper can be driven or moved toward the first conductive member end portion or the second conductive member end portion, and in particular clamps or picks up the first conductive member end portion or the second conductive member end portion at a clamping position or clamping point predetermined for the first gripper. In other words, the first clamp is specifically driven towards a predetermined clamping point so as to be able to clamp the first conductive member end portion or the second conductive member end portion in a defined manner. Particularly preferably, the first clamp is configured to be driven towards different positions of the first conductive member end portion or the second conductive member end portion or different limb positions of the conductive member.

[0067] Particularly preferably, the first clamper and / or the first arm member on which the first clamper is arranged and / or the first clamping device are arranged to be able to move linearly. In other words, the first clamper and / or the first arm member on which the first clamper is arranged and / or the first clamping device are configured to perform linear movements. In order to move the first clamper and / or the first arm member, the clamping device preferably has a first moving unit. The first moving unit is configured to move the first clamper and / or the first arm member relative to the base and / or the second clamper. In other words, the first clamper and / or the first arm member can be moved by means of the first moving unit.

[0068] Advantageously, the clamping device comprises a first moving unit, which is configured to move the first clamper and / or the first arm member on which the first clamper is arranged relative to the base body and / or the second clamper. In other words, the first clamper of the first clamping device and / or the first arm member on which the first clamper is arranged can be moved by means of the first moving unit. In addition or as an alternative, the first moving unit can be configured to rotate the first clamper and / or the first arm member on which the first clamper is arranged, in particular around the pivot axis of the first clamping device. Particularly preferably, the first clamper arm or the first arm member of the clamping arm, which can also be referred to as the first clamping device, has a pivot axis, in particular in the lower region. In other words, the clamper arm or the first arm member of the clamping device has a pivot axis, in particular in the lower region or end region preferably opposite to the base plate. In particular, the first clamper is arranged at the end of the first arm member. In particular, the pivot axis makes it possible to clamp hairpins of different geometries, particularly preferably hairpins with different limb spacings, with the clamping device.

[0069] Additionally or alternatively, it may be provided that the first clamp is rotatable around the center of the first conductive component end portion or the second conductive component end portion to be clamped. In other words, the first clamp or the first clamping device or the first clamping arm may be rotatable around the center of the limb of the first conductive component end portion or the second conductive component end portion to be clamped, i.e. the limb of the conductive component.

[0070] Advantageously, the second clamping device comprises a moving unit, which is configured to move the second clamper relative to the base body. In other words, the second clamper of the second clamping device can be moved by means of the moving unit. Preferably, the moving unit has a first gear and a second gear, wherein the second clamper is arranged on the second gear. In this case, the first gear meshes with the second gear. Preferably, the first gear is a driven gear, which can also be referred to as a drive wheel. Particularly preferably, the first gear is configured as an external toothed gear. In particular, the second gear is an output wheel or gear, which can also be configured as an output plate. Particularly preferably, the second gear is configured as an internal toothed gear. The moving unit also comprises a drive unit, which is configured to drive the first gear to move the second gear. Preferably, the first gear is moved or rotated or driven by the drive unit. The drive unit can be configured as a motor, in particular as a stepping motor. The drive unit rotates or moves the first gear, which meshes with the second gear and thus moves the second gear. Particularly preferably, the teeth of the first gear mesh with a part of the second gear. By using two gear wheels to realize the moving unit, the mechanism for moving the second gripper has a particularly simple and robust structure.

[0071] According to an advantageous development, it is provided that the second clamping device comprises a receiving unit on which the second gear wheel is arranged. The receiving unit can be designed as a support, such as, for example, a plate. In particular, the receiving unit is designed to receive or hold or fix or support the second gear wheel. In addition, the receiving unit comprises at least one receiving section, wherein the second gear wheel has at least one guide member extending into the receiving section. In other words, the element or component or accessory arranged in the receiving section of the receiving unit can be arranged on the second gear wheel. In particular, "receiving section" refers to an area or part or a receiving device or section of the receiving unit. In particular, the at least one guide member extends perpendicular to the surface of the second gear wheel. The second gear wheel can also have several guide members. In addition, the receiving section determines the trajectory of the second clamper. In other words, by arranging the guide member of the second gear wheel in the receiving section of the receiving unit, the movement of the second clamper can be limited or determined. In other words, the second gear wheel or the second clamper is guided by the guide member in the receiving section or the receiving section. By means of the cooperation of the receiving section with the guide member, the movement or guidance of the second clamper can be set or determined in a particularly simple and reliable manner.

[0072] Advantageously, the receiving portion has a circular arc shape, wherein during the movement of the second gear wheel, the guide member is guided in the receiving portion such that the second holder moves at least partially along a circular path. In particular, the "circular path" refers to a circular line along which the second holder moves at least partially. In other words, the at least one guide member guides the second gear wheel in the receiving portion with a defined diameter.

[0073] Particularly preferably, the accommodating portion is configured as a groove or an elongated hole or a groove or a channel. In particular, the groove or the elongated hole or the groove or the channel has an arc shape. The at least one guide member can preferably be configured as an attachment or a pin or a stud or a bolt. In this case, the guide member is at least partially, that is, completely or partially, arranged in the groove or the elongated hole or the groove or the channel. When the second gear moves, since the guide member is arranged in the groove or the elongated hole or the groove or the channel, the second gear can only move in the groove or the elongated hole or the groove or the channel. In particular, the width of the at least one guide member is adapted to the width of the accommodating portion. When the at least one guide member is guided in the accommodating portion, the at least one guide member is preferably guided along the length of the accommodating portion. This has the advantage that the second clamp is guided without any undesirable movement such as swinging.

[0074] Additionally or alternatively, the second movement unit can be designed to rotate the second clamper and / or the second arm member on which the second clamper is arranged, in particular about a pivot axis of the second clamping device. Particularly preferably, the clamper arm or the second arm member of the clamping device has a pivot axis, in particular in a lower region or end region, preferably opposite the base plate. In particular, the second clamper is arranged at the end of the second arm member. In particular, the pivot axis makes it possible to clamp hairpins of different geometries, particularly preferably hairpins of different limb spacings, with the clamping device.

[0075] Advantageously, the first clamp and the second clamp are arranged offset from each other relative to the height of the first clamp and the second clamp. In other words, the first clamp and the second clamp can be arranged differently or offset from each other in the vertical direction of the clamping device. Preferably, the first clamp and the second clamp are not arranged at the same height.

[0076] Another advantageous embodiment provides that the base body comprises a substrate, wherein the first arm member and the second arm member are arranged on the substrate, wherein the two arm members extend vertically relative to the substrate, wherein the first clamping device is arranged on the first arm member and the second clamping device is arranged on the second arm member. In particular, the term "substrate" refers to a plate-like workpiece. In this case, the first arm member is arranged at an end or end portion on the surface of the substrate, and the second arm member is arranged at an opposite end or end portion on the surface of the substrate, in particular parallel to the first arm member, on the substrate. In other words, the first arm member and the second arm member are arranged or fixed on the substrate at a predetermined spacing, in particular parallel to each other. For example, the first arm member and the second arm member can be configured as a rod or a track or a rod. In particular, the first arm member and the second arm member extend perpendicular to the surface or side of the substrate.

[0077] Advantageously, the first clamp and the second clamp each have two clamping jaws, wherein the corresponding clamping surface of the corresponding clamping jaw has a concave configuration. In other words, the corresponding clamping surface of the clamping jaw can be configured to be circular, particularly configured to be bent inwardly. For example, the first clamp and / or the second clamp are configured as parallel clamps. Preferably, the shape of the clamping jaws or the clamping surface can also be adapted to the shape of the conductive member, particularly the conductive member end portion. Due to the circular configuration of the clamping jaws, the conductive member or the corresponding conductive member end portion can be firmly and reliably maintained between the clamping jaws.

[0078] In particular, the first and / or second clamps are closed and clamp the conductive member between the clamping jaws of the first and / or second clamps, which can also be referred to as clamping jaws. Thus, the conductive member is held, in particular held at two spaced apart conductive member end portions or one conductive member end portion of the conductive member.

[0079] Another advantageous embodiment provides that the base body can be articulated to a transport device for moving the gripping device. For example, the transport device can be a robot. In other words, for example, the base body or the gripping device can be mounted on the robot.

[0080] The invention also includes a hairpin handling device for handling hairpins for coil windings for manufacturing parts of electric machines, the hairpin handling device comprising a clamping device according to the invention and / or a transport device for moving the clamping device. The invention also includes a control system for the hairpin handling device and / or the clamping device and / or the transport device. According to another aspect of the invention, a computer program is provided, the computer program comprising program steps for controlling the clamping device according to the invention and / or program steps for controlling the method according to the invention and / or program steps for controlling the hairpin handling device according to the invention and / or program steps for controlling the transport device according to the invention for moving the clamping device.

[0081] Finally, the present invention also includes a method for clamping at least one conductive member by means of a clamping device, wherein the clamping device comprises a substrate, a first clamping device comprising a first clamp and a second clamping device having a second clamp arranged to be movable relative to the substrate. In one method step of the method, the first conductive member end portion or the second conductive member end portion of each predetermined conductive member is clamped at a predetermined position by means of the first clamp of the first clamping device. In other words, in one method step, the corresponding conductive member can be clamped individually by the first clamp at the first conductive member end portion or the second conductive member end portion. In another method step, the second clamp moves relative to the first clamp or the substrate to adjust to the position of the second conductive member end portion of the predetermined conductive member or the first conductive member end portion of the predetermined conductive member. In addition, the second conductive member end portion of the conductive member or the first conductive member end portion of the conductive member is clamped by means of the second clamp.

[0082] In this case, the order of the method steps is in principle variable. In particular, the second clamp can be moved relative to the first clamp to adjust to the position of the second conductive component end portion of the conductive component before clamping the first conductive component end portion. In addition, the two conductive component end portions can be clamped simultaneously, in particular after the second clamp has been oriented for the first time.

[0083] In this case, the control system of the clamping device can, for example, obtain information about the specific geometry of the conductive component to be respectively clamped, such as the spacing between two conductive component parts and their position on the feeding device, from a feeding device for feeding the conductive component to the clamping device. The control system then orients the clamping device relative to the conductive component to be clamped and then positions the second clamper relative to the first clamper so that the first conductive component part can be clamped by the first clamper and, at the same time, the second conductive component part can be clamped by the second clamper.

[0084] An advantageous embodiment provides that the second gripper moves along a predetermined circular path towards the second conductive component end portion or the first conductive component end portion in order to grip the second conductive component end portion or the first conductive component end portion of the predetermined conductive component. In other words, the second gripper is guided on a defined diameter.

[0085] Another advantageous embodiment provides that the conductive components are clamped one after another in time by means of a clamping device, wherein, before the respective conductive component end portion is clamped, the conductive component is rotated about the limb axis of one of the two conductive component end portions of the conductive component so that the other conductive component end portion is arranged on a circular path. In particular, a "limb axis" is an axis about which the respective conductive component is turned or rotated. In particular, one of the two conductive component end portions has a limb axis. Particularly preferably, the conductive component end portions or limbs of the conductive components are placed one above the other successively, in particular successively in time, in a superimposed manner, and then all conductive components are rotated about the limb axis, in particular the same limb axis, of one of the two conductive component end portions or limbs, in particular individually about them, so that as a result there is a common diameter at the other conductive component end portion or limb. In other words, all the conductive members to be clamped are preferably rotated around a limb axis, in particular the same limb axis, so that the conductive members are oriented so that the other limb of the conductive member - in particular, the conductive member does not rotate around it - is located on a common diameter or a common circular path or circular ring line or circular radius. Preferably, the respective conductive members are rotated around the limb axis of the first conductive member end portion so that the second conductive member end portion or limb is arranged on or located on a common circular ring line.

[0086] In a particularly preferred embodiment, several conductive components are clamped one after another in time using a clamping device, wherein, before clamping the corresponding conductive components, the clamping device is oriented relative to the conductive components to be clamped separately, and the second clamper is moved relative to the first clamper so that the first conductive component part and the second conductive component part of the conductive component can be clamped by the first clamper and the second clamper respectively at the same time.

[0087] In this case, the control system of the clamping device obtains information, for example, about the specific geometry of the conductive component to be respectively clamped, such as the spacing between two conductive component parts and their positions on the feeding device, for example, from a feeding device for feeding the conductive component to the clamping device. The control system then orients the clamping device relative to the conductive component to be clamped and then positions the second clamper relative to the first clamper in such a way that the first conductive component part can be clamped by the first clamper and at the same time the second conductive component part can be clamped by the second clamper.

[0088] Advantageously, after clamping the predetermined conductive component, the conductive component is prefitted, in particular prefitted, into the adapter nesting by means of the clamping device. The adapter nesting may also be referred to as prefitted nesting. Particularly preferably, several conductive components are prefitted one after the other at a time to form the crown.

[0089] Advantageously, for pre-assembly, the first clamping device and the second clamping device are positioned so that the first clamp is arranged on the inside of the circular path of the component and the second clamp is arranged on the outside of the circular path, or the first clamp is arranged on the outside of the circular path and the second clamp is arranged on the inside of the circular path, or the first clamp is arranged on the outside of the circular path and the second clamp is arranged on the outside of the circular path, or the first clamp is arranged on the inside of the circular path and the second clamp is arranged on the inside of the circular path.

[0090] Embodiments of the invention also include improvements of the clamping device, the hairpin-shaped piece handling device, the transport device according to the invention and the method according to the invention, which improvements include the features already described in conjunction with the clamping device according to the invention and the improvements of the method according to the invention. For this reason, the corresponding improvements of the hairpin-shaped piece handling device according to the invention, the transport device according to the invention and the method according to the invention are not described again in this document.

[0091] The exemplary embodiments will be described in more detail below with reference to the accompanying drawings. In the drawings:

[0092] Figure 1a A schematic diagram showing an assembly of several conductive components of a stator having two crowns is shown in side view;

[0093] Figure 1b A schematic diagram showing an assembly of several conductive components of a stator having two crowns is shown in top view;

[0094] Figure 1c A schematic diagram of an assembly of several conductive components of a stator having two crowns is shown in a view from below;

[0095] Figure 2a A schematic diagram showing another assembly of several conductive members of a stator having two crowns is shown in side view;

[0096] Figure 2b A schematic diagram showing another assembly of several conductive components of a stator having two crowns is shown in top view;

[0097] Figure 2c A schematic diagram of another assembly of several conductive components of a stator having two crowns is shown in a view from below;

[0098] Figure 3 A schematic diagram of a clamping device having a base body, a first clamping device including a first clamper, and a second clamping device including a second clamper and a moving unit for moving the second clamper is shown in a perspective view;

[0099] Figure 4A schematic diagram of a clamping device having a base body, a first clamping device including a first clamp and a second clamping device including a second clamp and a moving unit for moving the second clamp is shown in another perspective view;

[0100] Figure 5 The view from below shows Figure 4 A schematic diagram of a clamping device;

[0101] Figure 6 shows a schematic diagram of a gripper having two gripping jaws;

[0102] Figure 7 The view from below shows Figure 4 A schematic diagram of a clamping device, wherein the moving unit is visible;

[0103] Figure 8 shows a schematic diagram of a second gripper with a visible moving unit comprising a first gear and a second gear;

[0104] Fig. 9 A schematic diagram showing a clamping device clamping a first conductive member is shown in a three-dimensional diagram;

[0105] Fig.10 A schematic diagram showing a clamping device clamping a second conductive member is shown in a three-dimensional diagram;

[0106] Fig.11 A schematic diagram showing a clamping device clamping a third conductive member is shown in a three-dimensional diagram;

[0107] Fig.12 A schematic diagram showing a clamping device clamping a fourth conductive member is shown in a three-dimensional diagram;

[0108] Fig.13 A schematic diagram showing a clamping device clamping a fifth conductive member is shown in a three-dimensional diagram;

[0109] Fig.14 A schematic diagram showing the clamping device when pre-fitting each conductive member into a pre-fitted nest; and

[0110] Fig.15 A schematic diagram showing a clamping device with positioning options for a first clamp and a second clamp is shown;

[0111] Fig.16 A schematic diagram of a clamping device having a base body, an alternative first clamping device including a first clamper, and an alternative second clamping device including a second clamper and a moving unit for moving the second clamper is shown in a perspective view when clamping a conductive member from one side;

[0112] Fig.17The stereogram shows Fig.16 A schematic diagram of a clamping device when clamping a conductive member from opposite sides;

[0113] Fig.18 The view from below showing the first and second clamps Fig.16 A schematic diagram of a clamping device;

[0114] Fig.19 The view from below showing the first and second clamps Fig.17 A schematic diagram of a clamping device;

[0115] Fig. 20 a schematic diagram showing four clamping positions of the first clamp and / or the second clamp; and

[0116] Fig.21 A schematic diagram showing another embodiment of the first clamp as a double clamp is shown.

[0117] The exemplary embodiments described below are preferred embodiments of the present invention. In the exemplary embodiments, the components of the described embodiments each constitute individual features of the present invention, which are considered independently of one another, and which also improve the present invention independently of one another in each case, and are therefore considered as constituent elements of the present invention individually or in combinations different from the combinations shown. In addition, the described embodiments may also be supplemented with other features of the present invention that have already been described.

[0118] Figure 1a to Figure 1c and Figure 2a to Figure 2c Several electrically conductive components, in particular for a stator of an electric machine, are depicted in different views, in a side view, a top view and a view from below. The electrically conductive components are designed as electrical conductors, in particular as hairpins. Figure 1a to Figure 1c Six conductive members are shown - a first conductive member 10, a second conductive member 11, a third conductive member 12, a fourth conductive member 13, a fifth conductive member 14 and a sixth conductive member 15, and Figure 2a to Figure 2c Five conductive members are shown, namely, a first conductive member 10 to a fifth conductive member 14. Although the respective conductive members are Figure 1a to Figure 1c and Figure 2a to Figure 2c In order to illustrate the different configurations of the conductive components, the conductive components are shown together in order to illustrate the different configurations of the conductive components, but for clamping, the individual conductive components are arranged successively, in particular successively in time, at predefined or predetermined positions and are clamped individually by the clamping device. After the individual conductive components have been manufactured in the manufacturing device and / or the bending device, the individual conductive components are provided individually to the clamping device via the transport system and are then clamped individually.

[0119] The shapes of the individual conductive members will be described in more detail below. The conductive member has a three-dimensional shape or 3D shape. The conductive member is configured to have a U-shaped bend. The conductive member has several angles, thereby forming a roof shape, which is also called a house roof shape. In this case, the angles and limb lengths of the conductive member can vary depending on the desired shape. In the roof-shaped area of ​​the conductive member, the conductive member is preferably bent in a direction extending perpendicular to the plane of the conductive member, so that a bend is formed in the roof-shaped area. For further details on the shape of the corresponding conductive member, reference is made to document [1].

[0120] The respective conductive member has two conductive member end portions, a first conductive member end portion 16 and a second conductive member end portion 17. The conductive member end portions may also be referred to as limb ends. Figure 1a to Figure 1c and Figure 2a to Figure 2c In the embodiment, the corresponding conductive member has a rectangular cross section or a rectangular cross-sectional shape. Alternatively, the conductive member can also have a circular or elliptical or square or polygonal cross section.

[0121] although Figure 1a to Figure 1c and Figure 2a to Figure 2c Several conductive members are shown at the same time, but Figure 1a to Figure 1c and Figure 2a to Figure 2c The illustration in should show how the individual conductive members are arranged one after the other, in particular in time, for clamping with a clamping device. The depicted conductive members are shown as being placed one above the other in a superimposed manner at one of the two conductive member end portions, in this case the first conductive member end portion 16, in order to illustrate the same pick-up position for the first conductive member end portion 16. The other conductive member end, in this case the second conductive member end portion 17, has a different position from one another. Figure 1a to Figure 1c and Figure 2a to Figure 2c In comparison, Figure 2a to Figure 2c The second conductive member end portions 17 in the embodiment are arranged, in particular arranged side by side, on the circular line 18. Six positions, in particular clamping positions offset from each other in the x-direction and the y-direction, are provided. Figure 1a to Figure 1c It is obvious.

[0122] In order to obtain Figure 2a to Figure 2cIn the arrangement of the second conductive member end portion 17 shown in , the corresponding conductive member rotates around the limb axis 19, in particular the limb axis of the first conductive member end portion 16. In particular, the "limb axis" refers to the axis around which the corresponding conductive member rotates or rotates. In particular, one of the two conductive member end portions has a limb axis. In the process, the first conductive member end portions 16 of the corresponding conductive member are successively, in particular successively in time, placed one above the other in a superimposed manner, and then rotated separately around the limb axis 19 of the first conductive member end portion 16, so that the result is a common diameter at the second conductive member end portion 17, or the second conductive member end portion 17 is located on a common circular path or circular ring line or radius. In practical applications, by moving a transport device attached to the clamping device 20, such as a robot, the clamping device 20 is positioned relative to the conductive member to be clamped so that the second conductive member end portion 17 is located on a common circular path or circular ring line or radius relative to the clamping device 20.

[0123] like Figure 2a to Figure 2c The orientation of the respective conductive members shown in forms the starting point for clamping the respective conductive members used in the clamping device, which will be described in detail below.

[0124] exist Figure 3 and Figure 4 , a clamping device 20 for clamping each conductive member is shown in a stereoscopic view. For example, the clamping device 20 can be installed on a robot. The clamping device 20 includes a base body 21 having a substrate 22, a first arm member 23 and a second arm member 24. The clamping device 20 also includes a first clamping device 25 and a second clamping device 26. The substrate 22 is configured as a plate-like workpiece or a plate. The first arm member 23 is arranged on the substrate 22 and on the surface at the end portion of the substrate 22, and the second arm member 24 is arranged on the surface of the substrate 22 at the opposite end portion. In other words, the first arm member 23 and the second arm member 24 are arranged on the substrate 22 opposite to each other, in particular parallel to each other. In this case, the first arm member 23 and the second arm member 24 are fixed to the substrate, in particular, are screwed to the substrate or are connected to the substrate in a form-fitting manner or are connected by material to material. Here, the two arm members-the first arm member 23 and the second arm member 24-extend vertically or perpendicularly to the substrate 22. The two arm members 23, 24 can be configured as rods or bars or rails, for example.

[0125] The first clamping device 25 is arranged on or fixed to the first arm member 23. In other words, the first arm member 23 holds or supports the first clamping device. In this case, the first arm member 23 is arranged on or attached to the substrate 22 with one end. The first clamping device 25 is arranged on the end of the first arm member 23 opposite to the one end or opposite to the substrate 22. In other words, the first arm member 23 is arranged between the substrate 22 and the first clamping device 25. In addition, the second arm member 24 is arranged on or attached to the substrate 22 with one end. The second clamping device 26 is arranged on or attached to the end of the second arm member 24 opposite to the one end or opposite to the substrate 22. In other words, the second arm member 24 is arranged between the substrate 22 and the second clamping device 24. In other words, the clamping device 20 includes a substrate 22, to which two arms or arm members 23, 24 are screwed. On each of these arms a clamping device 25 , 26 is mounted, each of which should clamp one of the two conductive member end portions 16 , 17 .

[0126] Figure 5 The clamping device 20 is shown in a perspective view from below. Figure 5 It can be clearly seen that the first clamping device 25 has a first clamp 27 and the second clamping device 26 has a second clamp 28. Figure 6 2 shows one of the two clamps in more detail. The two clamps, a first clamp 27 and a second clamp 28, each have two clamping jaws, a first clamping jaw 29 and a second clamping jaw 30. Preferably, the two clamping jaws 29, 30 of the first clamp 27 and the second clamp 28 have similar or identical structures. The two clamping jaws 29, 30 each have a clamping surface 31. In this case, the clamping surfaces 31 of the clamping jaws 29, 30 are bent inwardly or configured to be concave. The first clamping device 27 is configured to clamp the conductive member at the first conductive member end portion 16, in particular with the clamping jaws of the first clamping device 27. The second clamp 28 is configured to clamp the conductive member at the second conductive member end portion 17, in particular with the clamping jaws of the second clamp 28. In this case, the clamping surfaces 31 of the respective clamps 27, 28 grip the conductive member end portions. For example, the first gripper 27 and / or the second gripper 28 are configured as parallel grippers.

[0127] Furthermore, the first clamper 27 or the first clamping device 25 is configured in a fixed manner. In this case, the first clamper 27 is attached to the first arm member 23. The second clamper 28 is configured to be movable. In order to move the second clamper 28, the second clamping device 26 includes a moving unit 32. The second clamper 27 can be moved relative to the substrate 22 or base 21 and / or the first clamper 27 or the first clamping device 25. Figure 7 and Figure 8 The moving unit 32 for moving the second clamper 28 will be described in more detail.

[0128] The moving unit 32 has a first gear 33, a second gear 34 and a driving unit 35 ( Figure 7 and Figure 8 ). The first gear 33 is configured as an externally toothed gear. The second gear 34 is configured as an internally toothed gear. In this case, the first gear 33 meshes with the second gear 34. The first gear 33 is driven by a drive unit 35. Therefore, the drive unit 35 is configured to drive the first gear 33, that is, to make the first gear 33 perform a rotational movement. The drive unit 35 can be, for example, a stepper motor. The first gear 33 can also be referred to as a drive wheel or a drive gear. The second gear 34 is driven by the first gear 33, that is, the second gear 34 is moved by the first gear 33. Therefore, the second gear 34 can also be referred to as an output gear or an output wheel or an output plate. As shown in FIG. Figure 7 and Figure 8 As can be clearly seen in the figure, the second gear 34 does not have a circular or wheel shape, but rather constitutes a toothed section. The second gear 34 is configured as a plate-shaped workpiece or a toothed plate, with which the teeth of the first gear 33 mesh. In addition, the second gripper 28 is arranged on the second gear 34 or attached to the second gear 34. Therefore, the second gripper 28 automatically moves with the second gear 34 due to the movement of the second gear 34.

[0129] In addition, the second clamping device 26 comprises a receiving unit 36, on which the second gear 34 is arranged or mounted. The receiving unit 36 ​​can be configured as a support. The receiving unit 36 ​​is configured as a plate-shaped component or as a plate. In addition, the receiving unit 36 ​​comprises at least one receiving portion 37. The receiving unit 36 ​​can also have several receiving portions. The receiving portion 37 is configured as a groove or an elongated hole or a groove or a channel. The receiving portion 37 has a circular or circular or semicircular shape. In addition, the second gear 34 has at least one guide member 38. In other words, at least one guide member 38 is arranged on the second gear 34. In addition, several guide members can be arranged on the second gear 34. For example, the guide member 38 can be configured as a pin or a bolt or an attachment. In this case, the at least one guide member 38 extends into the receiving portion 37. In other words, the guide member is at least partially, that is, completely or partially arranged in the receiving portion 37. The trajectory of the second clamper 28 is defined by the guide member 38 arranged in the receiving portion 37.

[0130] During the movement of the second gear wheel 34, the guide member 38 is guided in the receiving portion 37 such that the second gripper 28 moves at least partially along a circular path 39. In particular, a "circular path" refers to a circular line along which the second gripper moves at least partially.

[0131] Specific exemplary embodiments will be described below:

[0132] The mechanism of the second clamping device 26 comprises a driven gear 33 operated by a stepper motor. The teeth of the externally toothed driven gear 33, which can also be called the drive gear, mesh with a part of an internally toothed gear 34, which constitutes an output gear, which can also be called an output plate. One or several guide members are attached to the output plate. The guide member guides the output plate with a defined diameter in a receiving portion 37 or receiving section. The receiving section for the guide member is arranged in the receiving section. The second gripper 28 is mounted on the output plate with its gripping claws 29, 30. If the drive unit 35, i.e. the stepper motor, drives the drive gear 33, the second gripper 28 is thereby moved on a diameter path or annular path defined by the guide member 38 and the receiving section 37. The advantage of the toothed transmission is that the rotation point N of the second gear 34 or the output plate and therefore of the second gripper 28 does not have to coincide with the center P of the drive unit. This results in a compact system, which is necessary because the space within the adapter nest is very small. In addition, gear transmission also requires favorable power transmission.

[0133] Figures 9 to 13 It is shown successively as Figure 2a to Figure 2cThe five conductive members shown in FIG. 1 , namely, the first conductive member 11 , the second conductive member 12 , the third conductive member 13 , the fourth conductive member 14 and the conductive member 15 , are clamped.

[0134] In order to make the conductive member Figure 2a to Figure 2c oriented as shown in , the conductive member rotates around the first conductive member end portion 16 so that all other limb ends of the conductive member, i.e. the second conductive member end portion 17, are located on the same radius along which the second gripper can drive. For this purpose, for example, the base 21 of the gripping device 20 attached to the robot rotates and / or pivots accordingly. In particular, the immovable first gripper 25 is therefore also rotated. Before clamping the corresponding conductive member, in fact, the gripping device is oriented relative to the conductive member to be clamped respectively, and the second gripper moves relative to the first gripper so that the first conductive member part and the second conductive member part of the conductive member can be clamped by the first gripper and the second gripper respectively at the same time. In this case, the control system of the gripping device, for example, obtains information about the specific geometry of the conductive member to be clamped respectively, such as the spacing between the two conductive member parts and their positions on the feeding device from the feeding device for feeding the conductive member to the gripping device. The control system then orients the clamping device relative to the conductive member to be clamped, and then positions the second clamper relative to the first clamper so that the first conductive member portion can be clamped by the first clamper and, at the same time, the second conductive member portion can be clamped by the second clamper.

[0135] exist Figures 9 to 13 , the first clamp 27 clamps the first conductive component end portion 16 with its clamping jaws, and the second clamp 28 clamps the oriented second conductive component end portion 17 with its clamping jaws. During the clamping process, the first clamp 27 and / or the second clamp 28 close and clamp the conductive component between the clamping jaws 29, 30 of the first clamp 27 and / or the second clamp 28, which can also be referred to as clamping jaws. Thus, the conductive component is held, in particular held at two spaced conductive component end portions 16, 17 of the conductive component. When clamping the respective conductive component, the first clamp 27 remains fixed, i.e. does not move, and the second clamp 28 moves relative to the first clamp 27 or the base body 21 along a predetermined circular path 39 towards the respective second conductive component end portion 17 of the respective conductive component. In this example, this results in five different clamping points for the clamp 28, towards which the second clamp 28 must move. In order to clamp the second conductive member end portion 17, the second clamper 28 moves along the circular path 39 in the counterclockwise direction. Fig. 9 In the embodiment, the clamping device 20 clamps the first conductive member 10. Fig.10In the embodiment, the clamping device 20 clamps the second conductive member 11. Fig.11 In the embodiment, the clamping device 20 clamps the third conductive member 12. Fig.12 In the embodiment, the clamping device 20 clamps the fourth conductive member 13, and Fig.13 , the clamping device 20 clamps the fifth conductive member 14 . Figures 9 to 13 It should be noted that if different conductive components are rotated around the limb axis 19 or the clamping device has been oriented accordingly towards the conductive component to be clamped, the second conductive member end portion 17 or the second limb is always located on the radius of a circle relative to the clamping device and therefore, despite the different geometric shapes of the conductive components, the conductive member can be clamped at the second conductive member end portion 17 or the end by simple kinematics of the second clamping device 26.

[0136] The clamping device is used for pre-fitting the conductive components, in particular for pre-fitting the conductive components after the bending process. Pre-fitting is understood to be the positioning of the respective conductive components to form a crown. The crown or hairpin crown is then introduced into the stator and / or rotor by one or more joining processes. The positioning of the conductive components to form a crown is carried out with the aid of an adapter nest 40, into which the conductive components are pre-fitted.

[0137] Fig.14 The pre-fitting of the clamped conductive member into the adapter nest 40 is shown in FIG. For further details on the pre-fitting, reference is made to documents [1] and [2]. Fig.14 The adapter nest 40 in is configured for forming two crowns from the conductive member. However, more than two crowns can also be formed. During assembly, one conductive member is clamped separately and fitted into the adapter nest or pre-fitting device or receiving section. Depending on the configuration of the stator and / or rotor, different pre-fitting movements with the clamping device 20 are required to enable the braiding of the crown or the braiding of the conductive member to form the crown. Therefore, different positions of the two clamps - the first clamp 27 and the second clamp 28 - or different positions of the clamping devices 25, 26 are necessary.

[0138] Fig.15Positioning options for the first clamp 27 and the second clamp 28 relative to the circular path 39 are shown. The first clamp 27 can be arranged on the inside of the circular path 39 at position z, and the second clamp 29 can be arranged on the outside of the circular path 38 at position w. Additionally or alternatively, the first clamp 27 can be arranged on the outside of the circular path 39 at position y, and the second clamp 28 can be arranged on the inside of the circular path 39 at position x. Additionally or alternatively, the first clamp 27 can be arranged on the outside of the circular path 39 at position y, and the second clamp 28 can be arranged on the outside of the circular path at position w. Additionally or alternatively, the first clamp 27 can be arranged on the inside of the circular path 39 at position z, and the second clamp 28 can be arranged on the inside of the circular path 39 at position x. Fig.15 , the first gripper is arranged outside the circular path 39 at position y, and the second gripper 28 is arranged inside the circular path 39 at position x.

[0139] Combination Figures 16 to 19 A further embodiment of a clamping device 20 having a first clamping device 25 and a second clamping device 26 is described.

[0140] Also in this case, the clamping device 20 includes a base body 21 having a base plate 22, a first arm member 23 and a second arm member 24. The clamping device 20 also includes a first clamping device 25 and a second clamping device 26. The base plate 22 is configured as a plate-like workpiece or plate. The first arm member 23 is arranged on the base plate 22 and is arranged on a surface of a predetermined portion of the base plate 22, especially at an end portion, and the second arm member 24 is arranged on the surface of the base plate 22 at another predetermined portion, especially at the opposite end. In other words, the first arm member 23 and the second arm member 24 are arranged on the base plate 22 at a predetermined distance from each other, especially opposite to each other, and especially preferably parallel to each other. Here, the two arm members - the first arm member 23 and the second arm member 24 - extend vertically or vertically to the base plate 22, especially to the surface of the base plate 22 against which the two arm members 23, 24 abut. The two arm members 23, 24 can be configured as rods or bars or rails, for example.

[0141] In other words, the gripper device 20 comprises two gripper arms, referred to as arm members 23, 24, on each of which is mounted a gripper, a first gripper 27 and a second gripper 28. The gripper arms are mounted on a substrate 22. The substrate is mounted on and moved by a handling device such as a robot or the like.

[0142] The first clamping device 25 is provided on or fixed to the first arm member 23. In other words, the first arm member 23 holds or supports the first clamping device 25. In this case, the first arm member 23 is provided on the base plate 22 with one end. The first clamping device 25 is arranged on the end of the first arm member 23 opposite to the one end or opposite to the base plate 22. In other words, the first arm member 23 is provided between the base plate 22 and the first clamping device 25.

[0143] Furthermore, the second arm member 24 is arranged with one end on or attached to the substrate 22. The second clamping device 26 is arranged on or attached to the end of the second arm member 24 opposite to the one end or opposite to the substrate 22. In other words, the second arm member 24 is arranged between the substrate 22 and the second clamping device 24. In other words, the clamping device 20 comprises a substrate 22, on which two arms or arm members 23, 24 are arranged. On each of these arms a clamping device 25, 26 is mounted, each of which should clamp one of the two conductive member end portions 16, 17 or clamp one of the two conductive member end portions 16, 17 together.

[0144] The first clamping device 25 comprises a first clamp 27 and the second clamping device 26 comprises a second clamp 28. For example, the first clamp 27 and / or the second clamp 28 are configured as parallel clamps, in particular pneumatic parallel clamps.

[0145] The second holder 28 is constructed or configured similarly to a combination Figure 6 The second gripper 28 is configured to grip the conductive member at the second conductive member end portion 17 or also at the first conductive member end portion 16, in particular using the gripping jaws of the second gripper 28. In this case, the gripping surface 31 of the second gripper 28 grips the second conductive member end portion 17 or the first conductive member end portion 16. Fig.18 and Fig.19 As shown in FIG. 1 , the second clamp 28 has two clamping jaws, a first clamping jaw 29 and a second clamping jaw 30. The two clamping jaws 29, 30 each have a clamping surface 31. In this case, the clamping surfaces 31 of the clamping jaws 29, 30 are bent inwardly or are configured to be concave or moon-shaped. Figure 6Unlike the clamping jaws of the second clamper 28 in the embodiment of the present invention, the first clamping jaw 29 has an appendix F. The appendix F extends from the first clamping jaw 29 in the direction of the second clamping jaw 30. The appendix F includes or forms a part of the clamping surface 31. Due to the appendix F, the first clamping jaw 29 overlaps with the second clamping jaw 30. The second conductive member end portion 17 or the first conductive member end portion 16 accommodated between the clamping jaws 29, 30 is enclosed by the appendix F and / or the clamping surface 31. In addition or as an alternative, the second clamping jaw 30 can also have this appendix. In that case, the appendix F extends from the second clamping jaw 30 in the direction of the first clamping jaw 29. The appendix F includes a part of the clamping surface 31. Due to the appendix F, the first clamping jaw 29 overlaps with the second clamping jaw 30.

[0146] The second clamper 28 is configured to be movable. The second clamper 28 can be moved relative to the substrate 22 or base 21 and / or the first clamper 27 or the first clamping device 25. In order to move the second clamper 28, the second clamping device 26 includes a second moving unit 32b. The second moving unit 32b is configured differently from the first clamper 27 and the second clamping device 25. Figure 7 and Figure 8 The second mobile unit 32b described herein comprises a second mobile unit 32b. The second mobile unit 32b comprises a mechanism for rotating the second clamper 28. In particular, the second mobile unit 32b has a rotating mechanism. In other words, the second clamper 28 can be rotated. For this purpose, the second mobile unit 32b or the second clamping device 26 has a pivot axis D. In this case, the second clamping arm 24 has a pivot axis D at an end portion, in particular, at an end portion on which the second clamper 28 is arranged, and in particular preferably at an end portion opposite to the base plate 22, which is configured to move or rotate the second clamper 28. In particular, a "pivot axis" refers to an axis around which rotation occurs. In particular, the pivot axis D makes it possible to clamp hairpin-shaped pieces of different geometric shapes, such as hairpin-shaped pieces with different limb spacings, using the clamping device 20.

[0147] The first clamp 27 is configured for clamping the conductive member at the first conductive member end portion 16 or the second conductive member end portion, in particular with the clamping jaws of the first clamp 27. In this case, the clamping surface 31 of the first clamp 27 grips the first conductive member end portion 16 or the second conductive member end portion 17.

[0148] In addition, the first clamper 27 and / or the first arm member 23 and / or the first clamping device 25 are arranged to be linearly movable. In other words, the first clamper 27 and / or the first arm member 23 and / or the first clamping device 25 are configured to perform a linear movement. In order to move the first clamper 27 and / or the first arm member 23 and / or the first clamping device 25 or to perform a linear movement of the first clamper 27 and / or the first arm member 23 and / or the first clamping device 25, the clamping device 20 preferably has a first moving unit 32a. The first moving unit 32a is configured to move the first clamper 27 and / or the first arm member 23 and / or the first clamping device 25 relative to the base 22 and / or the second clamper 28. In other words, the first clamper 27 and / or the first arm member 23 and / or the first clamping device 25 of the first clamping device 25 can be moved by means of the first moving unit 32a. In other words, the first clamper 27 and / or the first arm member 23 and / or the first clamping device 25 may be mounted on the first moving unit 32 a , which allows linear movement, in particular relative movement with respect to the base plate 22 .

[0149] Due to this linear movement, the hairpin-shaped piece can be clamped in various ways. If the first arm member 23, i.e. the first clamping arm, is located in its Fig.16 and Fig.18 In the left-hand position shown in FIG. 1 , the hairpin-shaped piece can be clamped from one side; that is, the two clamps, namely the first clamp 27 and the second clamp 28, are located on one side of the hairpin-shaped piece relative to the hairpin-shaped piece. If the first arm member 23, namely the first clamping arm, is in its Fig.17 and Fig.19 In the right-hand position shown in FIG. 1 , the hairpin can be clamped from both sides; that is, one clamp is located on one side of the hairpin and the other clamp is located on the other side of the hairpin with respect to the hairpin.

[0150] The first moving unit 32a may have, for example, a track that is arranged on a surface or side of the substrate 22 facing the first clamper 27 and the second clamper 28. In this case, the first arm member 23 may move along the track. In addition, the first moving unit 32a for moving or displacing the first arm member 23 may include a cylinder. For example, the first moving unit 32a may include a lifting cylinder or a gas spring.

[0151] Furthermore, the first and second clampers 27 and 28 are arranged offset relative to each other with respect to their heights. In other words, the first and second clampers 27 and 28 may be arranged differently or offset relative to each other in the vertical direction of the clamping device 20.

[0152] Fig. 20The hairpin with the first conductive member end portion 16 and the second conductive member end portion 17, i.e. the two limbs of the conductive member and the four possible positions 1, 2, 3, 4 of one clamp or two clamps 27, 28 of the clamping device 20 are schematically shown in a cross-sectional view. The combination of the processing device and the clamping device 20, i.e. the system comprising the processing device and the clamping device 20, allows all conceivable variations of the clamping position. This means that each of the two clamps 27, 28 in any combination can be moved to any clamping position 1, 2, 3, 4. For example, if the first clamp 27 occupies the clamping position 1, the second clamp 28 can be moved towards all four possible clamping positions 1, 2, 3, 4. Alternatively, for example, the second clamp 28 can be moved towards the clamping position 1 and the first clamp 27 is moved towards all four possible clamping positions 1, 2, 3, 4. In the process, the second gripper 28 can also be moved towards the same gripping position as the first gripper 27, or the first gripper 27 can be moved towards the same gripping position as the second gripper 28. Therefore, the first gripper 27 and the second gripper 28 can be arranged offset relative to each other with respect to their height. Therefore, it is possible that only one limb, i.e. one conductive member end portion, such as the first conductive member end portion 16 or the second conductive member end portion 17, is clamped by two grippers 27, 28. This flexibility provides the greatest advantage in loading or unloading the hairpin, i.e. the conductive member, into or from various (production) units. Therefore, the hairpin does not have to be transferred from the (production) unit to the clamping device in a defined manner, because the clamping device can be adapted to the corresponding (production) unit. This makes it possible to greatly simplify the construction work of the individual (production) units and at the same time provides considerable cycle time advantages in the production of the hairpin and the transportation of the hairpin.

[0153] As from Fig.21 It is clearly visible in Figures 16 to 19 The first clamp 27 in the embodiment has Figures 3 to 15The first clamp 27 of the embodiment of the present invention has different configurations. In addition to the fact that the first clamp 27 is configured to be movable, the first clamp 27 has two clamping points. For this purpose, the first clamp 27 has two clamping claws 29', 30'. The two clamping claws 29', 30' include two clamping claw members 29a', 30a', 29b', 30b'. The clamping claw members 29a', 30a', 29b', 30b' are arranged relative to each other. The first clamping claw member 29a' of the first clamping claw 29' is designated or assigned to the first clamping claw member 30a' of the second clamping claw 30'. Each clamping claw member 29a', 30a', 29b', 30b' has a clamping surface. The first clamping claw member 29a' of the first clamping claw 29' and the first clamping claw member 30a' of the second clamping claw 30' each have a first clamping surface 31'. The second clamping jaw member 29b' of the first clamping jaw 29' and the second clamping jaw member 30b' of the second clamping jaw 30' each have a second clamping surface 31". The first clamping jaw member 29a' of the first clamping jaw 29' and the first clamping jaw member 30a' of the second clamping jaw 30' together form or include a first clamping point. The second clamping jaw member 29b' of the first clamping jaw 29' is designated or assigned to the second clamping jaw member 30b' of the second clamping jaw 30'. The second clamping jaw member 29a' of the first clamping jaw 29' and the second clamping jaw member 30b' of the second clamping jaw 30' together form or include a second clamping point. In particular, two clamping points are thereby formed. The first clamping surface 31' and the second clamping surface 31" are arranged opposite to or facing each other. The first clamping jaw member 29a' of the first clamping jaw 29' and the first clamping jaw member 30a' of the second clamping jaw 30' and the second clamping jaw member 29b' of the first clamping jaw 29' and the second clamping jaw member 30b' of the second clamping jaw 30' can be constructed similarly to the second clamper 28 or the clamping jaw of the second clamper 28 with the attachment F, which has been combined Fig.18 and Fig.19 27 is described. However, the first clamp has two pairs of such clamping jaws, which are arranged opposite each other. The clamping jaw or jaws of the first clamp 27 formed in this way make it possible to close or open both clamping points with only a single clamp and without the need to install two actuators or clamps - which would cause considerable problems in terms of space and weight. Depending on the position of the right arm, i.e. the first arm member 23, the clamping point 1 or the clamping point 2 is in the activated position, i.e. arranged so that it can clamp the hairpin-shaped part limb.

[0154] Alternatively, the first clamp 27 may be configured similarly to the second clamp 28. Instead of a linear displacement of the first clamp 27, the first clamp 27 and / or the first arm member 23 may then be rotated about the pivot axis.

[0155] In summary, the clamping of a hairpin-shaped piece by means of a clamping device is described by means of embodiments of the present invention.

[0156] The clamping concept requires clamping all hairpin-shaped pieces at the limbs by means of fixed or immovable clamps. Five clamping positions are then produced on the other side.

[0157] First, one limb of all the different hairpins is placed one above the other in a superimposed manner. Then, all the hairpins are rotated about the limb axis M so as to produce a common diameter D at all the other limb ends. Then, only one actuator is moved towards all the different limb positions of the other limbs. The device is therefore cost-effective and, above all, compact.

[0158] For example, the entire clamping system can be mounted on a robot. The clamping system comprises a base plate which is threaded with or to the robot and to which two arms are screwed. A clamp is mounted on each of these arms, which should clamp one of the two hairpin limbs in each case. The movable clamp is mounted on the second arm and the fixed arm is mounted on the first arm. In this case, two parallel clamps are used to clamp the limbs. The clamping claws of the parallel clamps have a circular configuration at the clamping surfaces of the clamps. Therefore, rotation in the corresponding parallel clamp is prevented only by the fact that each hairpin is also clamped by another parallel clamp at its second limb. One parallel clamp is fixed or immovable. The other parallel clamp can be moved towards different positions of the second limb. The accommodating section of the movable clamp contains a mechanism for movement.

[0159] The mechanism moves the second gripper. The mechanism comprises a driven gear which can be operated, for example, by a stepper motor. The teeth of the externally toothed driven gear or the drive gear mesh with an internally toothed gear or a part of the output plate constituting the driven gear. One or several guide members are attached to the output plate. The guide member guides the output plate with a defined diameter in the accommodating section. An accommodating section for the guide member is arranged in the accommodating section. The accommodating section can be realized by means of a groove. The second gripper is mounted on the output plate with its gripping claws. If the drive unit drives the drive gear, the parallel gripper is thereby moved on a diameter path defined by the guide member and its accommodating section. Thus, all different hairpin-shaped pieces of the stator can be picked up and clamped in a defined manner by a predetermined or specific arrangement of the hairpin-shaped pieces.

[0160] The advantage of gear transmission is that the point of rotation and therefore the point of rotation of the clamp does not have to coincide with the center of the drive unit P. This results in a very compact system, since P is closer to the dotted line than n. In addition, gear transmission also requires a favorable power transmission. Currently, clamping systems are used to pre-fit the hairpins after the bending process. Pre-fitting is understood as positioning each hairpin to form a hairpin crown. The hairpin crown is then inserted into the stator and / or rotor through one or more engagement processes. Positioning the hairpin to form the crown is performed using an adapter nesting, in which the hairpin is pre-fitted. Depending on the configuration of the stator, different pre-fitting movements need to be performed using the clamping system to enable the braiding of the hairpin or the crown. This requires different positions of the two clamping arms with a fixed clamp and a movable clamp. However, for the two clamps, all other position combinations relative to the diameter are conceivable.

[0161] However, in addition to the pre-fitting of hairpins, the device can also conceivably be used for all other processing of items having two limbs, the positions of which are different.

[0162] According to an alternative embodiment, the gripping device has two gripping arms or arm members, on which in each case a gripper, such as a pneumatic parallel gripper or the like, is mounted. The gripping arms are mounted on a substrate. The substrate is mounted on a handling device, such as a robot or the like, and is moved by it.

[0163] In the lower region, the second clamping arm has a pivot axis that enables the clamp of the second arm to be moved. The pivot axis makes it possible to clamp hairpins of different geometries, for example hairpins with different limb spacings, using the clamping system.

[0164] The first clamping arm or the first clamp of the first clamping arm is mounted on a mobile unit which allows linear movements, in particular relative movements with respect to the base plate. The same effect can be obtained if the first clamping arm can be rotated about the limb center of the right-hand limb. Due to this linear movement, the hairpin can be clamped in various ways. If the first clamping arm is in its left-hand position, the hairpin can be clamped from one side; that is, both clamps, the clamp of the second clamping arm and the clamp of the first clamping arm, are located on one side of the hairpin relative to the hairpin. If the second clamping arm is in its right-hand position, the hairpin can be clamped from both sides; that is, one clamp is located on one side of the hairpin and the other clamp is located on the other side of the hairpin relative to the hairpin. The linear movement of the first arm member makes the clamping system very flexible.

[0165] In summary, it can be said that the combination of a handling device, in particular a robot or the like, on which the above-mentioned clamping device is mounted, and the above-mentioned clamping device allows the hairpin-shaped piece to be clamped in a very flexible manner. The combination of a handling device and a clamping device allows all conceivable variations of the clamping position. This means that each of the two clamps in any combination can be moved to any clamping position. For example, if a clamp occupies one clamping position, the other clamp can be moved towards four possible clamping positions - even towards the same clamping position as the other clamp. This is possible because the two clamps are arranged offset relative to each other with respect to their height. Therefore, it is possible that only one limb of the hairpin-shaped piece, i.e., one end portion of the conductive member, is clamped by the two clamps. This flexibility provides the greatest advantage in loading or unloading the hairpin-shaped piece into various (production) units. Therefore, the hairpin-shaped piece does not have to be transferred from the (production) unit to the clamping system in a defined manner, because the clamping system can be adapted to the corresponding (production) unit. This leads to a considerable simplification of the construction work of the individual (production) units and at the same time provides considerable cycle time advantages in the production of the hairpins and in the transport of the hairpins.

[0166] The clamping jaws of the first gripper are formed in a special way. As in the case of the second gripper, they have not only a single clamping point, but two clamping points. The jaws formed in this way make it possible to close or open both clamping points with only a single gripper, for example a pneumatic gripper, and without the need to install two actuators, which would lead to considerable problems in terms of space and weight. Depending on the position of the first arm, either the clamping point 1 or the clamping point 2 is in the activated position, i.e. arranged so that it can clamp the hairpin limb.

[0167] Reference numerals list

[0168] 10 first conductive member

[0169] 11. Second conductive member

[0170] 12. Third conductive member

[0171] 13 fourth conductive member

[0172] 14 Fifth conductive member

[0173] 15 Sixth conductive member

[0174] 16 first conductive member end portion

[0175] 17 Second conductive member end portion

[0176] 18 Loop Line

[0177] 19 Limb axis

[0178] 20 Clamping equipment

[0179] 21 Matrix

[0180] 22 substrate

[0181] 23 First arm member

[0182] 24 Second arm member

[0183] 25 First clamping device

[0184] 26 Second clamping device

[0185] 27 First gripper

[0186] 28 Second clamp

[0187] 29 First clamping jaw

[0188] 29' First clamping jaw

[0189] 29a' First clamping claw member

[0190] 29b' Second clamping claw member

[0191] 30 Second clamping jaw

[0192] 30' Second clamping jaw

[0193] 30a' First clamping claw member

[0194] 30b' Second clamping claw member

[0195] 31 Clamping surface

[0196] 31' First clamping surface

[0197] 31" Second clamping surface

[0198] 32 mobile units

[0199] 32a First mobile unit

[0200] 32b Second mobile unit

[0201] 33 First Gear

[0202] 34 Second gear

[0203] 35 Driver Unit

[0204] 36 Accommodation Units

[0205] 37 Accommodation

[0206] 38 Guide member

[0207] 39 Circular Path

[0208] 40 Adapter Nesting

[0209] D Pivot axis

[0210] F Attachments

Claims

1. A clamping device (20) for clamping at least one conductive member among a plurality of conductive members, wherein: The clamping device (20) is configured to clamp conductive members of different geometric shapes, wherein the conductive member comprises a first conductive member end portion (16) and a second conductive member end portion (17), and the clamping device (20) comprises: - base body (21), - a first clamping device (25), the first clamping device (25) comprising a first clamp (27), wherein the first clamping device (25) is configured to clamp the first conductive member end portion (16) or the second conductive member end portion (17) of a predetermined conductive member by means of the first clamp (27), and - a second clamping device (26), the second clamping device (26) comprising a second clamp (28), the second clamp (28) being arranged to be movable relative to the base body (21), wherein the second clamping device (26) is configured to move the second clamp (28) relative to the first clamp (27) so that the second clamp (28) clamps a predetermined conductive member at the second conductive member end portion (17) or at the first conductive member end portion (16), wherein: The base (21) comprises a base plate (22), wherein a first arm member (23) and a second arm member (24) are arranged on the base plate (22), wherein the two arm members (23; 24) extend vertically relative to the base plate (22), wherein the first clamping device (25) is arranged on the first arm member (23), and the second clamping device (26) is arranged on the second arm member (24), and The first arm member (23) is configured to be able to move linearly relative to the base plate (22).

2. The clamping device (20) according to claim 1, It is characterized in that The clamping device (20) is configured to clamp a coil member bent into a U-shape.

3. The clamping device (20) according to claim 2, characterized in that The coil member is a conductive pin.

4. The clamping device (20) according to claim 2, characterized in that The coil member is a hairpin-shaped piece.

5. The clamping device (20) according to claim 1, It is characterized in that 5.1 The first holder (27) and / or the first holding device (25) are arranged to be movable relative to the base body (21) and / or relative to the second holder (28); and / or 5.2 The first clamp (27) and / or the first clamping device (25) are configured to be able to move linearly; and / or 5.3 The first clamp (27) and / or the first clamping device (25) and / or the first arm member (23) are mounted in a rotatable manner; and / or 5.4 The first clamp (27) is rotatable around the center of the first conductive member end portion (16) or the second conductive member end portion (17) to be clamped; and / or 5.5 The first clamp (27) and the second clamp (28) are arranged offset relative to each other in the vertical direction of the clamping device (20); and / or 5.6 The clamping device (20) is configured to clamp the coil member bent into a U-shape.

6. The clamping device (20) according to claim 5, characterized in that The first clamp (27) and / or the first clamping device (25) and / or the first arm member (23) are mounted in a rotatable manner about a pivot axis.

7. The clamping device (20) according to claim 5, characterized in that The coil member is a conductive pin.

8. The clamping device (20) according to claim 5, characterized in that The coil member is a hairpin-shaped piece.

9. The clamping device (20) according to any one of claims 1 to 8, It is characterized in that 9.1 The second clamping device (26) comprises a moving unit (32) or a second moving unit (32b) configured to move the second clamp (28) relative to the base body (21); and / or 9.2 The second clamping device (26) comprises a moving unit (32), which is configured to move the second clamp (28) relative to the base body (21) along a circular path; and / or 9.3 The second holder (28) is mounted in a rotatable manner, wherein: The second clamping device (26) comprises a second moving unit (32b) configured to rotate the second clamper (28).

10. The clamping device (20) according to claim 9, characterized in that The second holder (28) is mounted in a rotatable manner about a pivot axis.

11. The clamping device (20) according to any one of claims 1 to 8, It is characterized in that The first clamp (27) and the second clamp (28) each have two clamping jaws (29; 30; 29'; 30'), wherein the respective clamping surface (31) of the respective clamping jaw (29; 30; 29'; 30') has a concave configuration.

12. The clamping device (20) according to claim 11, It is characterized in that 12.1 A clamping jaw of the first clamp (27) comprises in each case two clamping jaw members, wherein a first clamping jaw member (29a') of the first clamping jaw (29') is associated with a first clamping jaw member (30a') of the second clamping jaw (30'), and a second clamping jaw member (29b') of the first clamping jaw (29') is associated with a second clamping jaw member (30b') of the second clamping jaw (30'), wherein the first clamping jaw member (29a', 30a') and the second clamping jaw member (29b', 30b') are arranged opposite one another; and / or 12.2 The first clamp (27) is constructed as a double clamp.

13. The clamping device (20) according to any one of claims 1 to 8, It is characterized in that The base body (21) can be articulated to a transport device for moving the holding device (20).

14. A hairpin processing device for processing hairpins used for manufacturing coil windings of parts for electric motors, the hairpin processing device comprising a clamping device (20) according to claim 13 and a transport device for moving the clamping device (20) and a control system.

15. A method for clamping at least one electrically conductive component by means of a clamping device (20) according to any one of claims 1 to 13, the method comprising the steps of: - clamping the first conductive member end portion (16) or the second conductive member end portion (17) of each predetermined conductive member at a predetermined position by means of the first clamp (27) of the first clamping device (25); - moving the second clamp (28) relative to the first clamp (27) to adjust to a predetermined position of the second conductive member end portion (17) of the conductive member or a predetermined position of the first conductive member end portion (16) of the conductive member, and - clamping the second conductive member end portion (17) of the conductive member or the first conductive member end portion (16) of the conductive member by means of the second clamp (28).

16. The method according to claim 15, It is characterized in that The second clamper (28) moves along a predetermined circular path (39) toward the second conductive member end portion (17) or the first conductive member end portion (16) so as to clamp the second conductive member end portion (17) of the predetermined conductive member or the first conductive member end portion (16) of the predetermined conductive member.

17. The method according to claim 16, It is characterized in that Several conductive members are clamped one after the other in time using the clamping device (20), wherein, before clamping the corresponding conductive member end portion (16; 17), the conductive member is rotated about the limb axis (19) of one of the two conductive member end portions (16; 17) so that the other conductive member end portion (16; 17) is arranged on the circular path (39).

18. The method according to claim 15 or 16, It is characterized in that The clamping device (20) is used to clamp several conductive members one after another in time, wherein, before clamping the corresponding conductive members, the clamping device (20) is oriented relative to the conductive members to be clamped respectively, and the second clamper (28) is moved relative to the first clamper (27) so that the first conductive member end portion (16) and the second conductive member end portion (17) of the conductive member can be clamped by the first clamper (27) and the second clamper (28) respectively at the same time.

19. The method according to claim 16, It is characterized in that After clamping the predetermined conductive member, the conductive member is pre-assembled by means of the clamping device (20).

20. The method according to claim 19, characterized in that The conductive member is pre-fitted into the adapter nest (40) by means of the clamping device (20).

21. The method according to claim 19, It is characterized in that Several conductive components are pre-fitted one after the other at a time to form the crown.

22. The method according to claim 19, It is characterized in that For pre-assembly, the first clamping device (25) and the second clamping device (26) are positioned so that the first clamp (27) is arranged on the inner side of the circular path (39) and the second clamp (28) is arranged on the outer side of the circular path (39), or the first clamp (27) is arranged on the outer side of the circular path (39) and the second clamp (28) is arranged on the inner side of the circular path (39), or the first clamp (27) is arranged on the outer side of the circular path (39) and the second clamp (28) is arranged on the outer side of the circular path (39), or the first clamp (27) is arranged on the inner side of the circular path (39) and the second clamp (28) is arranged on the inner side of the circular path (39).

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