公开(公告)号：US5847351A

公开(公告)日：1998-12-08

申请号：US811013

申请日：1997-03-04

申请人： Hiromichi Morita ,  Hideyuki Iiboshi ,  Tetsuji Sanada ,  Takashi Shimizu

发明人： Hiromichi Morita ,  Hideyuki Iiboshi ,  Tetsuji Sanada ,  Takashi Shimizu

IPC分类号： B23H7/30 ,  B23H1/02

CPC分类号： B23H1/02 ,  B23H1/024

摘要： An electrode feeding apparatus for electric-discharge machining by discharging between an electrode and a workpiece in order to machine the workpiece includes an occurrence frequency detecting unit for detecting the occurrence frequency of short-circuit current flowing when the electrode contacts the workpiece and a penetration detecting unit for detecting penetration by the electrode to the workpiece based on the occurrence frequency. According to the present invention, it is possible to detect with high precision penetration by the electrode into the workpiece by utilizing the difference between an occurrence frequency of short-circuit current during electrode discharge machine and the occurrence frequency of the short-circuit current when the electrode has penetrated the workpiece.

摘要翻译： 一种用于通过在电极和工件之间放电以加工工件的放电加工的电极馈送装置包括：出现频率检测单元，用于检测电极接触工件时流动的短路电流的发生频率和穿透检测 基于发生频率检测电极对工件的穿透的单元。 根据本发明，通过利用电极放电机械的短路电流的发生频率与短路电流的发生频率之间的差异，可以将电极的高精度穿透到工件中进行检测 电极已经穿透工件。