Carl Hurth, Maschinen- Und Zahnradfabrik

Carl Hurth Maschinen- Und Zahnradfabrik Gmbh & Co.

Manfred Heckmaier

Herbert Loos

Gerhard Reichert

Horst Behnke

Udo Luhmer

Rudolf Kerschl

In an apparatus for the cutting, deburring or breaking of the side tooth edges of gears with one or two tools which are located on the side of a guide gear and which machine the aforesaid tooth edges. The guide gear meshes with the workpiece, and, in one embodiment, is constructed as a measuring gear. Prior to the actual machining operation, the distance between the axes of the pretoothed workpiece and the measuring gear is measured independently and is made visible, if desired, on an indicating device. In order to avoid incorrect measurement results due to burrs existing on the workpiece, the guide gear can, if desired, have recesses into which extend the burrs.

Gear deburring apparatus and method

An apparatus and tool for the precision working of gears, particularly by a gear shaving process. The process involves the step of changing the direction of rotation between the workpiece and the tool approximately starting with half of the advance path and the smallest distance between the axes. The optimum condition occurs when the direction of rotation is changed prior to reaching the smallest distance between the axes and the advance is directed at a right angle with respect to the axis of the workpiece or tool. The tool is rotatably supported on a spindle as is the workpiece. The workpiece is driven relative to the tool to advance same relative to the tool. Control devices are provided for controlling the movement of the workpiece relative to the tool. The tool has grooves which extend from the addendum to the dedendum and form cutting edges and the flanks of the teeth have concaved surfaces.

Apparatus and tool for precision working, particularly shaving, of gears

A method for the precision working of gears, particularly by a gear shaving process. The method involves the step of changing the direction of rotation between the workpiece and the tool approximately starting with half of the advance path and the smallest distance between the axes. The optimum condition occurs when the direction of rotation is changed prior to reaching the smallest distance between the axes and the advance is directed at a right angle with respect to the axis of the workpiece or tool. The tool is rotatably supported on a spindle as is the workpiece. The workpiece is driven relative to the tool to advance same relative to the tool. Control devices are provided for controlling the movement of the workpiece relative to the tool. The tool has grooves which extend from the addendum to the dedendum and form cutting edges and the flanks of the teeth have concaved surfaces.

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Unterpfaffenhofen, Germany

Manfred Heckmaier