TAP BREAKING DETECTING DEVICE OF TAPPING DEVICE FOR TURRET PUNCH PRESS, AND OPERATION METHOD OF TURRET PUNCH PRESS PROVIDED WITH THIS DEVICE

摘要

PURPOSE: To facilitate repair and replacement in the case of the failure of a tapping device or the breaking or wear of a tap being generated by providing a projector-receiver supporting body, installed at a turret, with another projector- receiver connected to a projector-receiver by an optical fiber. ;CONSTITUTION: A second projector-receiver supporting body 48B is installed removably from a punch supporting turret 3. At the time of replacing tapping devices 17A, 17B, the tapping devices 17A, 17B, an optical fiber 53A and the second projector-receiver supporting body 49B are replaced as a set. In order to detect whether the punch supporting turret 3 is equipped with a proximity switch is fitted to a third projector-receiver supporting body 49C, and the second projector-receiver supporting body 49B is provided with a detected dog placed face to face with the proximity switch.;COPYRIGHT: (C)1996,JPO