System for the production of an additional rotational motion of a helically toothed gear workpiece in a positively controlled gear processing machine
US4178537A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 11, 1978 |
| Grant date | Dec 11, 1979 |
| Priority date | — |
| Expiry date | May 11, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/102226
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a method and apparatus for the production of an additional rotational motion of a helically toothed gear workpiece in an electronically, positively controlled gear processing machine operating according to the hobbing method which has separate rotating drives for workpiece and tool. In this process, a series of impulses are supplied to a controller. These impulses are compared to each other for the production of a control signal for the readjustment of the workpiece drive. The series of impulses are dependent upon the rate of rotation of each of the drives. An additional signal is supplied which is derived from the longitudinal advance of the workpiece in relation to the tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.