锥面砂轮
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Present a method of sharpening twist drills in the interior conical surface and exterior conical surface grinding wheel. A novel sharpening device of linkage-gear compound mechanism is designed.
提出了利用外锥面砂轮实现内锥面刃磨钻头的方法，设计了实现该方法的连杆齿轮组合机构。
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