Toolholder
US4226562A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1978 |
| Grant date | Oct 7, 1980 |
| Priority date | — |
| Expiry date | Sep 11, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T483/134
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A toolholder has a shank with a tapered body which is adapted to fit into a complementary socket in an end face of a machine tool spindle. A blind bore in the body is engageable by holding means for holding the shank in the socket. A first axial section of this bore is threaded for engagement with a threaded member of one kind of holding means such as a pulling rod or a set bolt coacting with pulling means. A second axial section of the bore is enlarged to form an annular groove for engagement by an expansible head of a pulling member of an alternative kind of holding means. An encoder ring is removably fixed at the toolholder. Each time the tool is exchanged the encoder ring is replaced by an encoder ring corresponding to the new tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.