Toolholder for indexable inserts
US5944457A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 9, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Dec 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/229
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A toolholder forms a seat in which a cutting insert is seated. The insert is held in place by a clamp having front and rear portions. The front portion engages within a center hole of the insert, and the rear portion engages an inclined surface of the toolholder so that the clamp is pushed downwardly and rearwardly when attached by a screw. A coil spring surrounds the screw and is compressed between the clamp and the toolholder to bias the clamp upwardly. An upper end of the spring is disposed in a bore of the clamp which is inclined relative to the screw, whereby the spring abuts a rear portion of a wall of the bore to bias the clamp rearwardly as well as upwardly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.