Chucking device of workpiece in grinding machine
US4709512A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1985 |
| Grant date | Dec 1, 1987 |
| Priority date | — |
| Expiry date | Dec 12, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/247
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chucking device of a workpiece to be ground in a grinding machine, including a rotatable housing, a pair of elastically biased weight bodies which are opposed in the housing so as to come away from and close to each other a pair of opposed clamp plates which are provided on the respective weight bodies for relative movement and which have openings defining a center insertion opening in which the workpiece is inserted, and an end plate which is secured to the housing for covering the housing. The clamp plates are capable of inclining in planes thereof. The workpiece is firmly held in and by the center insertion opening of the clamp plates at at least four points of the center insertion hole by the outward displacement of the weight bodies, due to the centrifugal force acting thereon when the chucking device rotates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.