| 摘要 |
<p>PURPOSE: To provide a working device which can easily grind a recessed groove to the plate end surface of a thin thing such as the inner circumferential surface of a carrier hole. CONSTITUTION: A fixed guide roller 2 and a movable guide roller 3 in which an engaging groove is provided in the circumference are mounted and supported in a device main body 1 and at the same time the respective guide rollers 2, 3 and a rotary grinding stone are disposed along the circumference of a virtual circle (b), and the movable guide roller 3 is movable and adjustably supported by a roller moving mechanism 5 and at the same time the rotary grinding stone is movably and adjustably supported by a grinding-stone moving mechanism 6.</p> |
