| 摘要 |
PURPOSE:To obtain a ground surface of a small surface roughness in a device for performing surface grinding while rotating an electrode plate and a grinding member by making arrangements that the pressure between the grinding member and a ground surface is kept always constant and that the pressure can be adjusted down to a small value. CONSTITUTION:With a grinding member 5 being made to contact a ground body 2, electrolyte is supplied from a rotary joint 7 via an inside of a hollow rotary shaft 4 to the contact parts of the grinding member 5 and the ground body 2. At the same time, rotary power is transmitted to the hollow rotary shaft 4 by means of a rotary drive mechanism 10 to perform a compound buff- electrochmical grinding by rotating an electrode plate 6 and the grinding member 5. Here, the pressure of contact between the grinding member 5 and the ground body 2 is effected by the resilience of a spring 11, with the resilience capable of being adjusted by the turn of an adjustment screw 12. Accordingly, even if there is waviness on the ground body 2, the spring 11 responds it by expansion and contraction to make it possible to obtain a unifrom ground surface.
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