JPS58126124U

JPS58126124U - Electric discharge machining equipment

Info

Publication number: JPS58126124U
Application number: JP2146482U
Authority: JP
Inventors: 渡辺　洋治
Original assignee: 日立精工株式会社
Priority date: 1982-02-19
Filing date: 1982-02-19
Publication date: 1983-08-27

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

添付図は本考案の一実施例を示す放電加工装置め具体的
なブロック図である。１・・・・・・電源、２・・・・・・電極、３・・・・
・・被加工物、４・・・・・・ギャップ電圧検出回路、
５・・・・・・切換スイッチ、６・・・・・・差動増幅
器、７・・・・・・モータ駆動回路、８・・・・・・電
極送りモータ、９・・・・・・電極送り軸、１０・・・
・・・深さ検出回路、１１・・・・・・タイマ回路、１
２・・・・・・上下動作時間制御回路、１３・・・・・
・ハンチング選択ボタン、１４・・・・・・Ａ／Ｄ変換
器、１５・・・・・・記憶回路、１６・・・・・・ノッ
ト回路、１７・・・・・・ＡＮＤ回路、１８・・・・・
・スイッチ作動板、１９・・・・・・スイッチ。The attached drawing is a detailed block diagram of an electric discharge machining apparatus showing an embodiment of the present invention. 1...Power supply, 2...Electrode, 3...
...Workpiece, 4...Gap voltage detection circuit,
5... Selector switch, 6... Differential amplifier, 7... Motor drive circuit, 8... Electrode feed motor, 9... Electrode feed shaft, 10...
... Depth detection circuit, 11 ... Timer circuit, 1
2... Vertical operation time control circuit, 13...
- Hunting selection button, 14... A/D converter, 15... Memory circuit, 16... Not circuit, 17... AND circuit, 18...・・・・・・
・Switch operating plate, 19...Switch.

Claims

[Scope of utility model registration request]

An electric discharge machining electrode that moves up and down by rotational drive of an electric motor, a machining depth detection switch that operates according to the vertical movement of the electrode and sets the machining depth of the workpiece, and machining that is activated by the output of the detection switch. a depth detection circuit; a switching circuit that is switched and controlled by the output of the processing depth detection circuit and switches the vertical movement of the electrode using the gap voltage between the electrode and the workpiece as input; and the processing depth detection circuit; Actual machining is carried out by inputting the output of the motor drive circuit that changes the electrode feed speed, the timer circuit that gives the electric discharge machining stop command, the signal that detects that the gap voltage has become below a certain value, and the machining command signal. It is activated by a memory circuit that memorizes the entry, a combination of the memory circuit output and the hunting command signal, and an AND output of the memory circuit output, timer circuit output, and depth detection circuit output, and the motor drive circuit 1. An electric discharge machining apparatus comprising: an electrode vertical operation time control circuit that issues a hunting operation interrupt command, and configured to cause the electrode to perform a hunting operation when a predetermined machining depth is reached.