Fluid-operated collet chuck with centering fingers
US5429376A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1994 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Mar 1, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chuck for gripping workpieces to be machined has a chuck body with a workpiece support surface for supporting a workpiece to be machined. Generally radially movable centering and gripping collet fingers are concentrically supported by the chuck body. An inflatable bladder is further mounted on the chuck body in generally concentric relationship with the fingers. Control mechanism is provided for initially radially moving the centering fingers to cause them to move radially and center said workpiece, and then supplies a fluid under pressure to inflate the bladder and move the gripping fingers generally radially to fully grip the centered workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.