Tool coupling between a toolholder and a machine spindle
US4978262A · kind A · utility
8Cited by
8References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 6, 1990 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Mar 6, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309464
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tool clamping device for machine tools comprises a draw bar that is axially displaceable inside a machine spindle and a locking element arranged in cooperation with the draw bar. The device becomes secured to a toolholder by effecting a relative movement between the draw bar and the locking element to effect a lateral displacement of the locking element into locking engagement with a shaft portion of the toolholder. Continued axial movement of the draw bar is transmitted as axial movement to the toolholder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.