Device for fixing a piercing or expanding plug to a piercing or expanding bar
US4483638A · kind A · utility
4Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 29, 1981 |
| Grant date | Nov 20, 1984 |
| Priority date | — |
| Expiry date | May 29, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/604
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relate to fixing a plug in the end of a bar, the assembly being used for production of cylindrical hollow blanks which will be later rolled. The device comprises a plug including at its rear end a shank which can be introduced into an axial socket provided at one end of the bar. A locking means can be introduced transversely through a hole in the wall of the bar and engage its end within a groove realized around the shank. A retaining means holds the locking means in position. The device is used for rapid mounting and dismantling the plug and bar assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.