Quick change collet stop
US5058467A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1990 |
| Grant date | Oct 22, 1991 |
| Priority date | — |
| Expiry date | Mar 19, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T279/3487
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A collet stop for positively positioning a workpiece within a collet of a spindle in a multiple spindle lathe is disclosed. An adapter block having a counterbore is secured within the spindle. The collet stop is provided with a body portion, which is adapted to be engaged by the workpiece during use, and a neck portion. The neck portion is sized to be received within the counterbore of the adapter block. A bore is formed through the neck portion. The end of the neck portion is split to define a plurality of flexible fingers. A threaded fastener extends through the bore into cooperation with a tapered lock nut. By tightening the threaded fastener, the lock nut is drawn within the neck portion so as to spread the fingers radially outwardly into frictional engagement with the adapter block counterbore. A plurality of differently sized collet stops are provided for workpieces having different sizes or shapes. The collet stop is quickly and easily changeable with similar collet stops of varying size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.