Abstract: A manufacturing system for manufacturing a stator for an electric machine, in particular an electric motor, wherein the stator has a main part and a plurality of bent and/or straight bar conductors. The manufacturing system has the following: a bending machine for bending free ends of the bar conductors, a spreading machine for spreading the free ends of the bar conductors in the radial direction, a welding machine for welding the free ends of at least two bar conductors, and a holding device for the stator. The holding device has at least one first set of fingers for engaging between the bar conductors at a first end face of the main part. The holding device can be secured to the bending machine, the spreading machine, and the welding machine. The manufacturing system facilitates an accelerated and inexpensive manufacture of stators with bar conductors.

Abstract: An automation unit for handling component carriers has an enclosure for arranging components carriers within a first, a second and a third stacking space. The enclosure has a loading opening for the first stacking space, a transfer device for transferring component carriers between the stacking spaces, and a separating device to selectively separate or release the first stacking space inwardly. A safety system for an intervention area is at the loading opening to interrupt the operation of the automation unit if it detects an intervention. The safety system may switch to partial monitoring mode, to full monitoring mode after completion of an automated loading process or deactivate in a manual loading mode when the separating device separates the first stacking space. The safety system may switch to full monitoring mode before the separating device releases the first stacking space. The automation unit can be loaded both automatically and manually safely.

Abstract: A workpiece has a plurality of outwardly projecting teeth disposed about the circumference of the workpiece and has a central rotational axis (Z) with the teeth being disposed in a first plane that is perpendicular to the workpiece central axis (Z). A method of chamfering teeth on the workpiece uses a tool which has a plurality of cutting teeth disposed about the circumference of the tool and which has a central rotational tool axis (A) with the cutting teeth disposed in a second plane that is perpendicular to the tool central axis (A).

Abstract: An apparatus for bending ends, arranged in annular layers, of bar conductors for an electrical machine are arranged in a stator main body having multiple coaxially arranged coupling elements with coupling recesses, by which the ends of the bar conductors can be taken layer by layer and plastically deformed. Each coupling element has a driving platform, which can be moved in the axial direction together with the coupling element. The coupling element belonging to a driving platform can be rotated on the driving platform. All of the driving platforms move axially on a common climbing linkage. Each driving platform has a dedicated first driving device for axially moving the driving platform and a dedicated second driving device for rotating the coupling element on the driving platform, wherein the two driving devices are moved axially, together with the driving platform. The apparatus is of a simple construction requiring little installation space.

Abstract: A hobbing machine is disclosed having a workpiece spindle, by means of which a workpiece can be rotated about a workpiece axis, a hobbing head, at least one chamfering device, a first slide with a first slide guide system, wherein the hobbing head is arranged on the first slide, and a rail system. The first slide, by means of its first slide guide system, is arranged in a displaceable manner on the rail system. The hobbing machine also has a second slide with a second slide guide system. The at least one chamfering device is arranged on the second slide. Also, the second slide, by means of its second slide guide system, is arranged in a displaceable manner on the rail system, such that the first slide and the second slide can be displaced on an identical portion of the rail system. Presented is a structurally simple hobbing machine by means of which a workpiece can be hobbed and chamfered in a short period of time.

Abstract: An automation unit for handling component carriers has an enclosure for arranging components carriers within a first, a second and a third stacking space. The enclosure has a loading opening for the first stacking space, a transfer device for transferring component carriers between the stacking spaces, and a separating device to selectively separate or release the first stacking space inwardly. A safety system for an intervention area is at the loading opening to interrupt the operation of the automation unit if it detects an intervention. The safety system may switch to partial monitoring mode, to full monitoring mode after completion of an automated loading process or deactivate in a manual loading mode when the separating device separates the first stacking space. The safety system may switch to full monitoring mode before the separating device releases the first stacking space. The automation unit can be loaded both automatically and manually safely.

Abstract: A manufacturing system for manufacturing a stator for an electric machine, in particular an electric motor, wherein the stator has a main part and a plurality of bent and/or straight bar conductors. The manufacturing system has the following: a bending machine for bending free ends of the bar conductors, a spreading machine for spreading the free ends of the bar conductors in the radial direction, a welding machine for welding the free ends of at least two bar conductors, and a holding device for the stator. The holding device has at least one first set of fingers for engaging between the bar conductors at a first end face of the main part. The holding device can be secured to the bending machine, the spreading machine, and the welding machine. The manufacturing system facilitates an accelerated and inexpensive manufacture of stators with bar conductors.

Abstract: A welding machine for welding free ends of bar conductors of a stator of an electrical machine, in particular an electric motor, includes a support structure for directly or indirectly fastening the stator. The support structure has a welding mask that can be opened and closed. The welding device is in particular a laser welding device. The welding device is arranged above the support structure. The support structure can be moved between a closed position and a loading position. A first side of the welding mask faces the welding device in the welding position and faces downward in the loading position. The welding machine allows free ends of bar conductors of a stator of an electrical machine to be welded while at the same time the stator is protected against contamination.

Abstract: An apparatus for bending ends, arranged in annular layers, of bar conductors for an electrical machine are arranged in a stator main body having multiple coaxially arranged coupling elements with coupling recesses, by which the ends of the bar conductors can be taken layer by layer and plastically deformed. Each coupling element has a driving platform, which can be moved in the axial direction together with the coupling element. The coupling element belonging to a driving platform can be rotated on the driving platform. All of the driving platforms move axially on a common climbing linkage. Each driving platform has a dedicated first driving device for axially moving the driving platform and a dedicated second driving device for rotating the coupling element on the driving platform, wherein the two driving devices are moved axially, together with the driving platform. The apparatus is of a simple construction requiring little installation space.

Abstract: A method for skiving machining a toothed workpiece includes the steps of: providing the toothed workpiece rotatable about a workpiece axis; providing a toothed tool rotatable about a tool axis; tilting the tool axis through an azimuth angle ?>0° with respect to an x direction; tilting the tool axis furthermore through a polar angle ?<90 ° with respect to a z direction; rotating the toothed tool about the tool axis, the toothed tool in a contact zone sliding over the toothed workpiece rotating about the workpiece axis. The workpiece axis defines the x direction and the perpendicular of the contact zone to the workpiece axis defines a z direction. The x direction, a y direction and the z direction form a Cartesian coordinate system. This method can easily produce a chamber on the toothed workpiece with the toothed tool which is subject to fewer geometric restrictions.

Abstract: A method for honing a workpiece includes moving the workpiece onto an intermediate retention member which is rotatable about a vertical workpiece axis. Then, the workpiece is brought into a rolling engagement with a teaching wheel. An angular transfer position of the workpiece is established by the rotary sensor of the teaching wheel retention member. Next, the workpiece is transferred from the intermediate retention member onto a workpiece spindle, where the workpiece is retained onto the workpiece spindle. Then, the workpiece goes through a honing process by bringing the workpiece into a synchronized rolling engagement with a honing tool by utilizing the angular transfer position of the workpiece, thereby eliminating a separate centering step of the workpiece.

Abstract: A tool spindle for a honing machine includes a bowl-shaped holder having a circumferential peripheral wall connected to a bottom part. The bowl-shaped holder is configured to hold a honing ring on an inside of the bowl-shaped holder. At least one expansion element is formed on the inside of the bowl-shaped holder along an inner surface of the circumferential peripheral wall. The at least one expansion element radially clamps and centers the honing ring inside the bowl-shaped holder. A hydraulic chamber is disposed in the bottom part of the bowl-shaped holder. At least one hydraulic line is connecting in fluid communication the at least one expansion element and the hydraulic chamber. A single adjustment element is movable in relation to the bottom part of the bowl-shaped holder, where the single adjustment element is in fluid communication with the hydraulic chamber.

Abstract: A honing machine includes a machine housing enclosing a workpiece spindle and a tool spindle. The workpiece spindle includes a spindle collar with a spindle head configured to hold a workpiece. The tool spindle includes a cup-shaped holder with a honing ring located on an inside of the cup shaped holder. An operating tank is also located within the machine housing, where the operating tank surrounds the tool spindle in an oil-tight manner. The operating tank includes a panel with a recess, where the workpiece spindle is configured to insert the spindle head through the recess and form a first oil-tight seal between the recess and the spindle collar. The panel is moveable relative to the operating tank and tool spindle when the panel is carried along by the workpiece spindle during a feed motion. A second oil-tight seal is formed between the panel and the operating tank.

Abstract: A honing machine includes a machine housing enclosing a workpiece spindle and a tool spindle. The workpiece spindle includes a spindle collar with a spindle head configured to hold a workpiece. The tool spindle includes a cup-shaped holder with a honing ring located on an inside of the cup shaped holder. An operating tank is also located within the machine housing, where the operating tank surrounds the tool spindle in an oil-tight manner. The operating tank includes a panel with a recess, where the workpiece spindle is configured to insert the spindle head through the recess and form a first oil-tight seal between the recess and the spindle collar. The panel is moveable relative to the operating tank and tool spindle when the panel is carried along by the workpiece spindle during a feed motion. A second oil-tight seal is formed between the panel and the operating tank.

Abstract: A method for honing a workpiece includes moving the workpiece onto an intermediate retention member which is rotatable about a vertical workpiece axis. Then, the workpiece is brought into a rolling engagement with a teaching wheel. An angular transfer position of the workpiece is established by the rotary sensor of the teaching wheel retention member. Next, the workpiece is transferred from the intermediate retention member onto a workpiece spindle, where the workpiece is retained onto the workpiece spindle. Then, the workpiece goes through a honing process by bringing the workpiece into a synchronized rolling engagement with a honing tool by utilizing the angular transfer position of the workpiece, thereby eliminating a separate centering step of the workpiece.

Abstract: A tool spindle for a honing machine includes a bowl-shaped holder having a circumferential peripheral wall connected to a bottom part. The bowl-shaped holder is configured to hold a honing ring on an inside of the bowl-shaped holder. At least one expansion element is formed on the inside of the bowl-shaped holder along an inner surface of the circumferential peripheral wall. The at least one expansion element radially clamps and centers the honing ring inside the bowl-shaped holder. A hydraulic chamber is disposed in the bottom part of the bowl-shaped holder. At least one hydraulic line is connecting in fluid communication the at least one expansion element and the hydraulic chamber. A single adjustment element is movable in relation to the bottom part of the bowl-shaped holder, where the single adjustment element is in fluid communication with the hydraulic chamber.

Abstract: The invention relates to a method, in particular a turning method, for producing a rotationally symmetrical surface on a rotating workpiece (1), wherein a cutting edge (3) is inserted into the workpiece (1) many times. During each insertion (41), a new contour portion (11; 34), also referred to as a groove, is formed. The insertion positions lie so closely together that the resulting contour (7) generated on the workpiece (1) consists exclusively of adjacent residual contours or residual grooves (11?) which have arisen from the new contour portions or grooves (11; 34). Any interim contour portions (24) which have formed between the insertion positions during repositioning of the cutting edge (3) are removed again during the next insertion (41). The resulting rotationally symmetrical surface is twist-free. The method can be implemented using conventional lathes.

Abstract: A machine tool for processing tooth formations of workpieces, includes a rotary holder which can be rotated about a main axis A, two workpiece spindles which are arranged on the rotary holder, with the workpiece spindles having spindle axes (Sa, Sb) which are orientated parallel with the main axis A, in particular with the workpiece spindles being arranged symmetrically about the main axis A, and a tool holder for a tool for processing a workpiece on one of the workpiece spindles, is characterized in that the main axis A of the rotary holder extends horizontally. With this machine tool, contamination of the rotary holder and tool spindles by removed chips can be reduced and the structural complexity for a relative feed movement of the tool with respect to the workpiece parallel with the spindle axes can be reduced.

Abstract: The invention relates to a method for tooth-machining of workpieces (3), especially gear wheels, comprising milling, deburring by hobbing and integrated secondary deburring. The method proceeds on a machine tool (1) having two workpiece spindles (11, 12) which may exchange places. A workpiece (3) is mounted on a first workpiece spindle (11), followed by the workpiece spindles (11, 12) exchanging places, followed by pre-milling and, where applicable, cutting (=deburring by shaving) of the workpiece (3), followed by a further exchange of places, followed by chamfering and cutting of the workpiece (3), followed by a further exchange of places, followed by a finish-milling of the workpiece (3), followed by a further exchange of places, followed by a workpiece change. At the same time, the same procedure takes place on the second workpiece spindle (12), staggered in time by an exchange of places of the workpiece spindles (11, 12).

Abstract: A base framework for a manipulating apparatus which can be constructed in a modular manner, in particular for an automation cell which is designed for being combined with at least one machine tool, comprising a front wall, a rear wall and side walls which enclose a control space for a control device, a process platform being set up above the control space, the front wall having at least one mechanical interface for fixing a supply module which serves to supply workpieces, and the rear wall having a top rear-wall part which projects beyond the process platform and, on its front side pointing towards the process platform, has a first plurality of mechanical interfaces for the locally variable fixing of a process module for manipulating and/or processing supplied workpieces, the top rear-wall part also having an opening which is arranged above the process platform.