
基本信息:
- 专利标题: Einrichtung zum Schleifen von Spiralbohrern
- 专利标题(英):Device for sharpening twist drills
- 专利标题(中):用于磨削麻花钻。
- 申请号:EP85890036.8 申请日:1985-02-13
- 公开(公告)号:EP0153300A2 公开(公告)日:1985-08-28
- 发明人: Wurscher, Raimund
- 申请人: Wurscher, Raimund
- 申请人地址: Kramer-Glöcknerstrasse 12 A-1130 Wien AT
- 专利权人: Wurscher, Raimund
- 当前专利权人: WURSCHER, RAIMUND
- 当前专利权人地址: WURSCHER, RAIMUND
- 代理机构: Berger, Erhard, Dr.
- 优先权: AT463/84 19840214
- 主分类号: B24B3/26
- IPC分类号: B24B3/26
Means for grinding twist drills, with a drive shaft on which a grinding wheel with a grinding surface is axially movable and spring-loaded against a against the grinding surface arranged drill guide piece. The drill guide piece has guide channels for guiding Borern different diameters against the grinding surface, the guide channel at least one engaging in a flute of the drill guide pin and an encroachment of the drill against the elastically receding grinding surface bounding drills stop. In the drill guide piece a grinding disc abutment (17) is further arranged at least of a material that is harder than the grinding disc (3), which grinding wheel stop (17) one with the grinding surface (4a) of the grinding wheel (3) parallel and acting on it stop surface (17a ) which limits the spring travel of the grinding wheel (3) against the drill guide piece to an end position, in which the grinding face (4a) of the guide pin (23) is closer than the drill abutment (14). By the grinding wheel stop a constant position is maintained the same relative to the drill guide piece and restored to uneven wear of the grinding surface whose original shape is substantially in spite of wear of the grinding wheel.
公开/授权文献:
- EP0153300B1 Einrichtung zum Schleifen von Spiralbohrern 公开/授权日:1988-11-30