WIRE ELECTRIC DISCHARGE MACHINE HAVING FUNCTION OF MOVING FROM ARBITRARY RETREAT POSITION IN ELECTRIC DISCHARGE STATE AND RETURNING TO HALT POSITION

摘要

Electric discharge machining is halted during machining program operation, and a position of the machining halt point is stored. A wire electrode is retreated from the machining halt point to an arbitrary position in which a short-circuit with a workpiece is removed (retreat position), by interrupt operation in which axis movement is performed manually. Then, a return is made from the retreat position to the machining halt point while electric discharge machining is performed, machining program operation is started from the machining halt point, and electric discharge machining is restarted.

主权项

1. A wire electric discharge machine having a function of restarting machining at a machining halt point, comprising:
a storage unit that stores a halt position when program operation is halted after the start of machining by the program operation; an axis movement retreat unit that retreats a wire electrode from the halt position to an arbitrary retreat position by a manual interrupt; a return unit that returns the wire electrode in an electric discharge state from the arbitrary retreat position to the halt position; and a machining restart unit that restarts machining after the return of the wire electrode by the return unit.