METHOD OF GRINDING INSIDE SURFACE OF CYLINDRICAL MAGNETIC CORE

摘要

PURPOSE:To provide efficient mass working by supporting the outer periphery of a work from below to be rotated by left and right drums so that the work is located by the flanges of the drums for grinding. CONSTITUTION:A work 7 is supported by a blade plate from below and sandwiched rotatably by a reference drum 3 and a rubber drum 4 respectively from left and right. Since the rubber drum 4 is somewhat forward inclined to the flange 15 side of the reference drum 3, the work 7 is located with the advancing end being engaged vertically by the flange 15. A grinding wheel 9 is fed to the inner periphery of the work 7 with fine slow speed for heavy grinding and sparks out in the return stroke to complete finishing. After the completion of grinding, the rubber drum 4 retreats to a predetermined retreat end to transfer the work 7 by its own weight for completing 1 cycle. The cycle is repeated sequentially to grind the inside surface of the work 7 automatically.