| 摘要 |
The device has indexable cylindrical jaws (8,9) with several equally distributed V-shaped channels (32) of different depths. These channels lie in the jaws' lateral area. The bottom of each channel forms a corner in cross-section. The corners' bisectrix intersects the jaws' middle point. The jaws rotate in supports which enclose them and accommodate part of their lateral area, which extends through an opening in corresponding end planes of the support and radially inside it. |
