ELECTRICAL DISCHARGE MACHINING EQUIPMENT FOR ROLL- SHAPED WORK

摘要

PURPOSE:To make the surface of a roll evenly satin-finished irrelevant to the type of rolls by electrical discharge machining of rolls controlling the circumferential speed thereof with the regulation of a roll rotation driver according to the detection signal of a roll circumferential speed detector. CONSTITUTION:A plurality of head columns 9 on which an electrode 11 is mounted facing a roll-shaped work 3 and moved in the direction of the axis of rotation of the roll-shaped work 3 to satinize the circumferential surface thereof 3. In an electrical discharge working of such a type, the detection signal of a circumferential speed detection 16 for detecting the circumferential speed of the rolled work 3 is fed to a rotation controller 17 thereof 3 detecting the circumferential speed thereof. According to a command of the controller 17, the rotational speed of a rotation driver 5 is controlled.