| 摘要 |
A finishing wheel holding mechanism for a gear finishing apparatus using a finishing wheel having internal teeth, which permits simple and quick fitting or replacement of a finishing wheel is provided. The finishing wheel holding mechanism comprises a head frame 21 having at the center an opening portion for holding a finishing wheel, and an annular finishing wheel holder portion 22 for fitting finishing wheels A1 (A2), supported rotatablly within the opening portion of the head frame 21; and the finishing wheel holder comprises a support gear 50 having an open end portion 53 for finishing wheel insertion and an accepting portion 54 for fixing the finishing wheel, an annular shifting body 55 within the open end portion 53, a projection 57 contacting the finishing wheel to serve as a stopper, a pressing collar 58 inserted into the shifting body 55 to fix the finishing wheel by sliding the shifting body toward the finishing wheel, and an actuator 60 for driving the shifting body 55 toward the accepting portion.
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