Method and device for dual positioning of a workpiece in a turning machine
US4771521A · kind A · utility
2Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 28, 1987 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Oct 28, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/308792
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A dual position chuck and turning machine method allow automatic shifting of a workpiece from a first to a second turning axis by actuation of a draw bar through the spindle of the turning machine. A linkage in the chuck drives a movable jaw assembly having peripheral fixed keys thereon in an arcuate keyway responsive to the draw bar movement. The arcuate keyway allows moving the workpiece to second axes which are not merely rotations of the jaw assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.