Indexing and positioning device
US4644825A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1984 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Dec 4, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/1494
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An indexing and positioning device comprises: a fixed inner ring; and outer ring disposed coaxially, coplanarly, and revolvably therearound with an annular boundary therebetween; a plurality of positioning recesses formed at equal indexing intervals along and straddling the boundary and comprising respective inner and outer parts respectively formed in the inner and outer rings, all recesses assuming a completely assembled state upon combination of the inner and respective outer parts in a specific indexing register; a plurality of positioning balls one of which is floatably accommodated within each of the positioning recesses; a retainer confining and guiding each of the positioning balls; and a clamp ring operable to press the positioning balls inward into the respective positioning recesses thereby to cause accurate and positive centering and positioning of indexing positions of the inner and outer rings relative to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.