Jump control system for an electric discharge machine

Abstract

A jump control system for an electric discharge machine for controlling a jump of the electrical discharge machine. A discharge state is estimated from a discharge voltage (Vn, Vm, Tn) and a discharge current (In) between an electrode (34) and a workpiece (35), and a fuzzy inference is effected by a fuzzy control unit (12) using the estimated discharge state as an input, thereby obtaining an increment (.delta.T) of a jump period and an increment (.delta.D) of a jump distance. A jump period/distance modifying means (23) is used to obtain the jump period (T) and the jump distance (D), and a jump control means (24) executes a jump control based on these values, to thereby effect an electrical discharge machining. Thus, the machining speed can be increased, and the electrical discharge machining state can be improved.

Dependencies are inferred from the claim text.