| 摘要 |
PCT No. PCT/SE96/00494 Sec. 371 Date Oct. 20, 1997 Sec. 102(e) Date Oct. 20, 1997 PCT Filed Apr. 18, 1996 PCT Pub. No. WO96/33045 PCT Pub. Date Oct. 24, 1996The present invention relates to a grinding cup and a wear part for grinding of cutting inserts of a rock drill bit. The grinding cup is provided to be rotatably mounted in a grinding machine. The grinding cup is provided to perform grinding of cutting inserts of a rock drill bit. The grinding cup comprises a shank, a flush channel, and a wear part having a recess. The grinding cup has a center axis and is provided with vibration dampening means. The wear part is resilient in the grinding cup in at least the axial direction relative to the shank and the vibration dampening means forms contact surfaces with cooperating parts. The contact surfaces have substantially the same radial extension. |
