Thin-walled hollow wheels with internal and external toothing, and apparatus and method for manufacturing the same
US11498114B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2019 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Feb 16, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49462
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.