JPS60115671U

JPS60115671U - pulse arc welding machine

Info

Publication number: JPS60115671U
Application number: JP325584U
Authority: JP
Inventors: 脇屋　和央; 敏一藤吉; 森口　晴雄; 秀雄石井
Original assignee: 株式会社　三社電機製作所
Priority date: 1984-01-12
Filing date: 1984-01-12
Publication date: 1985-08-05

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 drawings]

第１図は従来のパルスアーク溶接機の結線図、第２図お
よび第３図はそれぞれ第１図の溶接負荷への供給電流の
波形図、第４図以下の図面はこの考案のパルスアーク溶
接機の１実施例を示し、第４図は結線図、第５図ａ〜Ｃ
はベース電流の供給時の第４図の動作説明用波形図、第
６図ａ〜Ｃはパルス電流の供給時の第４図の動作説明用
波形図、第７図は第４図の溶接負荷への供給電流の波形
図である。２１・・・高周波スイッチング回路、２２・・・パルス
トランス、２７・・・溶接負荷、２９・・・整流平滑回
路、３０・・・電流検出回路、３２・・・スイッチング
制御回路。Figure 1 is a wiring diagram of a conventional pulse arc welding machine, Figures 2 and 3 are waveform diagrams of the current supplied to the welding load in Figure 1, respectively, and Figure 4 and the following figures are pulse arc welding of this invention. One embodiment of the machine is shown, Figure 4 is a wiring diagram, and Figures 5 a to C.
are waveform diagrams for explaining the operation in Figure 4 when supplying base current, Figures 6 a to C are waveform diagrams for explaining operation in Figure 4 when supplying pulse current, and Figure 7 is the welding load in Figure 4. FIG. 21... High frequency switching circuit, 22... Pulse transformer, 27... Welding load, 29... Rectifying and smoothing circuit, 30... Current detection circuit, 32... Switching control circuit.

Claims

[Scope of utility model registration request]

A pulse arc welding machine that alternately supplies a base current for sustaining an arc and a pulse current larger than the base current to a welding load includes a high-frequency switching circuit that converts an input direct current to a high-frequency output, and the high-frequency output is on a primary side. An input pulse transformer, a rectifier and smoothing circuit that rectifies and smoothes the secondary output of the pulse transformer and supplies the output DC to the welding load, and detects and detects the current supplied from the rectifier and smoothing circuit to the welding load. a current detector that outputs a signal; and a current detector that controls switching of the high frequency switching circuit based on the level of the detection signal, controls the supply current to the base current when the base current is supplied, and controls the supply current to the base current when the pulse current is supplied. A pulse arc welding machine comprising a switching control circuit that controls a supply current to the pulsed current.