Felsomat Gmbh & Co Kg

Juergen Peschina

Helmut F Jaeger

Peter Haberstroh

Stefan Frommer

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.

Welding machine, production system and method for welding free ends of bar conductors

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.

Manufacturing system for manufacturing a stator with bar conductors

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.

Apparatus for bending ends, arranged in annular layers, of bar conductors of a stator of an electrical machine

The invention relates to a method for tooth-machining of workpieces (), especially gear wheels, comprising milling, deburring by hobbing and integrated secondary deburring. The method proceeds on a machine tool () having two workpiece spindles () which may exchange places. A workpiece () is mounted on a first workpiece spindle (), followed by the workpiece spindles () exchanging places, followed by pre-milling and, where applicable, cutting (=deburring by shaving) of the workpiece (), followed by a further exchange of places, followed by chamfering and cutting of the workpiece (), followed by a further exchange of places, followed by a finish-milling of the workpiece (), 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 (), staggered in time by an exchange of places of the workpiece spindles (). With the method according to the invention, well-deburred toothed workpieces () may be produced quickly and at low cost.

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Knittlingen, Germany

Juergen Peschina