发明公开
EP1112812A3 Grinding spindle with dual tool mounting means 审中-公开
Schleifspindel mit doppelter Werkzeughaltevorrichtung

Grinding spindle with dual tool mounting means
摘要:
A finishing grindstone member 20 is fixed to a spindle 10 by a bolt. In the spindle 10, there is formed a tool mounting portion 25 into which a rough grindstone member can be mounted. Into the tool mounting portion 25, there can be mounted not only the rough grindstone member but also a cover member 36. After a silicone wafer is roughly ground using the rough grindstone member, when finish grinding the silicone wafer using the finishing grindstone member 20, the cover member 36 is mounted onto the tool mounting portion 25 to thereby prevent the tool mounting portion 25 from being soiled.
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