SYSTEM FOR CONTROLLING RETRACTION OF ELECTRODE OF

专利名称：SYSTEM FOR CONTROLLING RETRACTION

OF ELECTRODE OF ELECTRIC DISCHARGEMACHINE.

发明人：MATSUMURA, TERUYUKI,YUKUTOMO,

MASASHI

申请号：EP84902215申请日：19840608公开号：EP0146635A4公开日：19870120

摘要：PCT No. PCT/JP84/00297 Sec. 371 Date Feb. 8, 1985 Sec. 102(e) Date Feb. 8,1985 PCT Filed Jun. 8, 1984 PCT Pub. No. WO84/045 PCT Pub. Date Dec. 20, 1984.Anelectrode retraction control system of an electric discharge machine for rapidly

retracting an electrode from a workpiece, in which the retraction velocity and readvancevelocity of an electrode (EP) moving relative to a workpiece (WK) are set to a velocityobtained by multiplying, by a fixed multiplication factor (a, k), a velocity decided on thebasis of a gap sensing voltage (Vd) corresponding to the magnitude of a gap betweenthe workpiece (WK) and the electrode (EP), the velocity being held constant duringretraction and readvance. Machining efficiency is advanced by raising the retractionvelocity and readvance velocity of the electrode (EP).

申请人：FANUC LTD

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