Expansion clamping chuck
US6179530A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1999 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Feb 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/95
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An expansion chuck for simultaneously chucking a tool shaft and a hollow tool part such as a beveling bush. A solid chuck body which can be chucked in the working spindle of a machine tool has in its chucking part a central receptacle bore to receive the tool shaft to be chucked as well as an external chucking face to mount the hollow tool part. An elongated toroidal chamber is arranged coaxially with the receptacle bore and the outside chucking face in the interior of the chucking part of the chuck body and is filled with an incompressible medium. Due to a hydraulic internal pressure in the toroidal chamber, both of its peripheral walls undergo elastic deformation, radially inwardly to chuck the tool shaft, and radially outwardly to chuck the hollow tool part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.