Thin-walled hollow wheels with internal and external toothing, and apparatus and method for manufacturing the same

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United States of America Patent

PATENT NO 11498114
APP PUB NO 20210054917A1
SERIAL NO

16969585

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Abstract

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In a method for manufacturing a hollow wheel which includes an internal toothing and an external toothing, wherein the internal toothing is a gear toothing, a workpiece is machined by way of a stamping tool. The workpiece has a tubular section with a longitudinal axis and a first stabilisation section for the shape stabilisation of the tubular section during the machining. The tubular section is inserted into a die having an internal die toothing. The workpiece is machined on the inner side by the stamping tool so as to simultaneously produce internal and external toothing by way of the workpiece executing a rotation movement with a temporally varying rotation speed and the stamping tool executing radially oscillating movements that are synchronised with the rotation movement.

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Patent Owner(s)

Patent OwnerAddress
ERNST GROB AG8708 MAENNEDORF

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ruh, Fabian Wald, CH 4 1

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