公开(公告)号：US06720516B2

公开(公告)日：2004-04-13

申请号：US10017364

申请日：2001-12-12

申请人： Yoshio Yamada ,  Takeshi Masaki ,  Toru Nakagawa ,  Hiroyuki Nakata ,  Hirofumi Yasumoto ,  Toshihiko Wada

发明人： Yoshio Yamada ,  Takeshi Masaki ,  Toru Nakagawa ,  Hiroyuki Nakata ,  Hirofumi Yasumoto ,  Toshihiko Wada

IPC分类号： B23H102

CPC分类号： B23H1/022 ,  B23H1/024 ,  B23H9/00 ,  B23H2300/20

摘要： An electrode discharge machining apparatus includes a first holder for holding a workpiece to be subjected to electro discharge machining, an electrode provided opposing the workpiece held by the first holder, a capacitor for supplying electric charge to the electrode and the workpiece so as to generate pulse electro discharge between the workpiece and the electrode, a power source for applying a voltage to the capacitor, a switching element provided between the capacitor, and at least one of the electrode, the workpiece and the power source, a switch controller for controlling on and off of the switching element, a current detecting element for detecting a current flowing between the workpiece and the electrode, and a control unit for, based on the current detected by the current detecting element, judging whether or not a short circuit occurs between the workpiece and the electrode. When it is judged that a short circuit occurs between the workpiece and the electrode, the switch controller switches off the switching element for a predetermined time. Use macro to add file identifier.

摘要翻译： 电极放电加工装置包括用于保持待进行放电加工的工件的第一保持件，与由第一保持件保持的工件相对设置的电极，向电极和工件供给电荷的电容器，以产生脉冲 工件和电极之间的放电，用于向电容器施加电压的电源，设置在电容器与电极，工件和电源中的至少一个之间的开关元件，开关控制器， 关闭所述开关元件，用于检测在所述工件和所述电极之间流动的电流的电流检测元件，以及控制单元，用于基于由所述电流检测元件检测到的电流判断所述工件之间是否发生短路 和电极。 当判断出工件和电极之间发生短路时，开关控制器将开关元件断开预定时间。 使用宏添加文件标识符。