Abstract: A positioning device may be used to peripherally position copper rods about a center axis that defines an axial direction. Each of the copper rods may be generally U-shaped and may have a first leg portion and a second leg portion. The positioning device may include a positioning body, a rotary body, locking means, and a rotary drive. Grooves of an outer peripheral surface of the positioning body may receive the first leg portions of the copper rods, which can be locked in place by the locking means. The rotary body may be rotatable about the positioning body and may include guide channels that receive the second leg portions of the copper rods. The rotary drive can cause the rotary body and the positioning body to rotate relative to one another, to pivot the second leg portions inwardly into the grooves of the positioning body.

Abstract: An assembly device may be employed to vertically stack a fuel cell stack having alternating membrane-electrode units and bipolar plates. The assembly device may include a base plate, a cover plate, and connecting pieces positioned at each of two end faces of the base plate and cover plate. A substantially cuboidal assembly chamber may be defined inside the assembly device by a plurality of vertically oriented locating strips, in order, via the locating strips, to position the membrane-electrode units and bipolar plates relative to one another during stacking. The assembly device may further include a drive for synchronous displacement of the locating strips.

Abstract: The present disclosure concerns devices and methods for resistance welding sandwich sheets to other components. Many sandwich sheets include a thermoplastic material layer disposed between two metallic cover layers. The sandwich sheet and the other component may be secured relative to one another by a clamping arrangement. A region of the sandwich sheet to be welded may be heated by a preheating current to soften and displace the thermoplastic material layer when the cover layers are pressed together. With respect to the preheating current, a first electrode arrangement may at least temporarily contact an electrically conductive contacting region of the clamping arrangement such that the preheating current can flow via the clamping arrangement. The cover layers may be welded to the other component with a welding current via the first welding electrode of the first electrode arrangement and a second welding electrode of a second electrode arrangement.

Abstract: A welding electrode unit includes a repositioning device that is movable. The repositioning device includes an energy storage device by way of which a welding electrode is connected directly or indirectly with the energy storage device can have a force applied to it for the purpose of a repositioning movement. The repositioning device is movable into a welding position by way of a forward movement and can be locked in the welding position.

Abstract: An assembly device may be employed to vertically stack a fuel cell stack having alternating membrane-electrode units and bipolar plates. The assembly device may include a base plate, a cover plate, and connecting pieces positioned at each of two end faces of the base plate and cover plate. A substantially cuboidal assembly chamber may be defined inside the assembly device by a plurality of vertically oriented locating strips, in order, via the locating strips, to position the membrane-electrode units and bipolar plates relative to one another during stacking. The assembly device may further include a drive for synchronous displacement of the locating strips.

Abstract: A processing station, for example a framing station, for workpieces formed as vehicle body parts. The station has at least one clamping frame, at least one magazine area for holding the clamping frames, a working area for processing the workpieces and a feed device for feeding the clamping frames between the at least one magazine area and the working area in a longitudinal direction X and a transverse direction Y. The feed device has a floor-based rail arrangement for guiding and carrying the clamping frames.

Abstract: A processing station, for example a framing station, for workpieces formed as vehicle body parts. The station has at least one clamping frame, at least one magazine area for holding the clamping frames, a working area for processing the workpieces and a feed device for feeding the clamping frames between the at least one magazine area and the working area in a longitudinal direction X and a transverse direction Y. The feed device has a floor-based rail arrangement for guiding and carrying the clamping frames.

Abstract: A tool exchange assembly and related method configured to swap change tool assemblies with a nutrunner constructed in accordance to one example of the present disclosure includes a nest. The nest has a lower jaw portion and an upper jaw portion. The lower jaw portion has first and second lower fingers that cooperate to define a lower slot. The upper jaw portion has first and second upper fingers that cooperate to define an upper slot. The nest is configured to receive a change tool assembly. Relative movement of the change tool assembly and the nest urges a sleeve on the change tool assembly to move between a locked position and an unlocked position.

Abstract: In the electrical energy storage element in accordance with the invention, a plurality of electrochemical cells that are each formed with a cathode and an anode as electrodes and an electrolyte are arranged stacked above one another. They are enclosed at one side by a top plate formed from an electrically conductive material, in particular aluminum, and at the oppositely disposed side by a base plate formed from an electrically conductive material, in particular aluminum. The base plate is coated by a cathode or by an anode and the cover plate is coated in a complementary manner by an anode or by a cathode. The anodes and cathodes are each formed at oppositely disposed surfaces of an electrically conductive carrier film which preferably comprises aluminum, copper, steel or an electrically conductive plastic.

Abstract: A positioning device may be used to peripherally position copper rods about a center axis that defines an axial direction. Each of the copper rods may be generally U-shaped and may have a first leg portion and a second leg portion. The positioning device may include a positioning body, a rotary body, locking means, and a rotary drive. Grooves of an outer peripheral surface of the positioning body may receive the first leg portions of the copper rods, which can be locked in place by the locking means. The rotary body may be rotatable about the positioning body and may include guide channels that receive the second leg portions of the copper rods. The rotary drive can cause the rotary body and the positioning body to rotate relative to one another, to pivot the second leg portions inwardly into the grooves of the positioning body.

Abstract: A tool exchange assembly and related method configured to swap change tool assemblies with a nutrunner constructed in accordance to one example of the present disclosure includes a nest. The nest has a lower jaw portion and an upper jaw portion. The lower jaw portion has first and second lower fingers that cooperate to define a lower slot. The upper jaw portion has first and second upper fingers that cooperate to define an upper slot. The nest is configured to receive a change tool assembly. Relative movement of the change tool assembly and the nest urges a sleeve on the change tool assembly to move between a locked position and an unlocked position.

Abstract: The invention relates to a method for bending at least one edge of a composite sheet, which has at least two outer metallic layers and an inner plastic layer, in which the edge of the composite sheet is edge-bent in a first step and is bent into the finished form in at least one further method step. In addition, the invention relates to a correspondingly bent composite sheet. The object of making a method for bending a composite sheet available, in which cracks in the metallic layers of the composite sheet can be prevented and, at the same time, in which a seam can easily be provided, is achieved by using an edge-bending punch, a holding-down device and an edge-bending jaw during the edge-bending operation and by the edge-bending punch having a notch running in the bending direction below the bending edge of the edge-bending punch.

Abstract: A drive device for driving a tool slide in a folding installation is proposed, wherein the drive device comprises a slide plate connected directly or indirectly to the tool slide, and a driveshaft that is rotatable about a rotation axis, wherein a rotary movement of the driveshaft is convertible by means of a cam disk into a linear movement, extending in the feed direction, of the slide plate.

Abstract: A welding electrode unit may include a repositioning device that is movable. The repositioning device may include a stored-energy means by way of which a welding electrode connected directly or indirectly with the stored-energy means can have a force applied to it for the purpose of a repositioning movement. The repositioning device can be moved into a welding position by way of a forward movement and can be locked in the welding position.

Abstract: The present disclosure concerns devices and methods for resistance welding sandwich sheets to other components. Many sandwich sheets include a thermoplastic material layer disposed between two metallic cover layers. The sandwich sheet and the other component may be secured relative to one another by a clamping arrangement. A region of the sandwich sheet to be welded may be heated by a preheating current to soften and displace the thermoplastic material layer when the cover layers are pressed together. With respect to the preheating current, a first electrode arrangement may at least temporarily contact an electrically conductive contacting region of the clamping arrangement such that the preheating current can flow via the clamping arrangement. The cover layers may be welded to the other component with a welding current via the first welding electrode of the first electrode arrangement and a second welding electrode of a second electrode arrangement.

Abstract: A method for testing a transmission, in particular a double clutch transmission, is provided. A torque is introduced into the transmission by means of a drive unit that is external relative to the transmission, and the transmission is switched to an operating state in which an internal component of the transmission functions as a brake in order to simulate an output unit.

Abstract: A device for stopping and/or aligning transport goods on a conveying device, in particular a roller conveyor, device has a main part and a stopping device that can be moved out of the main part into a conveying path of the conveying device in order to stop and/or align the transport goods that are transported along the conveying path. The stopping device comprises at least two separate stops that can be moved between a working position, which projects into the conveying plane, and a rest position, which is retracted with respect to the conveying plane, by means of a common actuator device.

Abstract: The invention relates to a method for bending at least one edge of a composite sheet, which has at least two outer metallic layers and an inner plastic layer, in which the edge of the composite sheet is edge-bent in a first step and is bent into the finished form in at least one further method step. In addition, the invention relates to a correspondingly bent composite sheet. The object of making a method for bending a composite sheet available, in which cracks in the metallic layers of the composite sheet can be prevented and, at the same time, in which a seam can easily be provided, is achieved by using an edge-bending punch, a holding-down device and an edge-bending jaw during the edge-bending operation and by the edge-bending punch having a notch running in the bending direction below the bending edge of the edge-bending punch.

Abstract: A method and device (10) for dynamically checking the teeth of a part (1) including a first motorized spindle (22), supporting the part (1) to be checked, is controlled by a first encoder (25), and a second motorized spindle (32), supporting a master pinion (2), is controlled by a second encoder (35). The two spindles (22, 32) are parallel and separated from one another with the master pinion (2) meshing with the part (1) to be checked. The master pinion (2) has a small thickness, compared to the part (1) to be checked, and the spindle (32) is mounted on a first carriage (43) which is movable in order to move the master pinion (2) along the profile of the teeth of the part (1) to be checked. This method and device allows characterizing both the radial defects and the angular defects of the teeth, and these defects being differentiated.

Abstract: A method for testing a transmission, in particular a double clutch transmission, is provided. A torque is introduced into the transmission by means of a drive unit that is external relative to the transmission, and the transmission is switched to an operating state in which an internal component of the transmission functions as a brake in order to simulate an output unit.