Collet clamping nosepiece for power feed drilling equipment
US7934892B2 · kind B2 · utility
4Cited by
16References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Mar 2, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/5623
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A collet clamping nosepiece for a power feed drill is described which includes at least one clamping piston located along a centerline of the nosepiece, an expansion mandrel comprising a frusto-conical exterior surface, and an expandable collet. The expandable collet is configured to substantially surround the expansion mandrel and operatively connect to the at least one clamping piston. Operation of the at least one clamping piston causes the mandrel to move along the exterior surface of the expansion mandrel for engagement and disengagement of the collet with a bore configured for insertion of the collet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.