Tool-clamping device
US4704056A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 1986 |
| Grant date | Nov 3, 1987 |
| Priority date | — |
| Expiry date | Aug 14, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T409/309464
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The subject of the invention is a device for clamping tools in the spindle of a machine tool, said device comprising a collet chuck located centrally in the spindle with clamping jaws at the forward end, a spring assembly to generate the necessary closing force and a mechanism overcoming the closing force to open the collet chuck. To avoid the supplying of pressure medium to the spindle and to be able to orient the spindle simply to change tools, the mechanism is located laterally next to the spindle in the spindle head and engages the collet chuck externally as well as an outer ring on the spindle. The outer ring has two notches for engagement of two noses for spindle orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.