JPS60121464U - Arc welding equipment - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案め一実施例の回路図、第２図お　　。 、よび第３図は電圧と時間との関係を示すグラフである
。 １・・・被溶接物、３・・・溶接トーチ、５・・・溶接
ワイヤ、８・・・溶接電源、１１・・・カウンタ、１２
・・・基準器、１３・・・比較器。。FIG. 1 is a circuit diagram of one embodiment of the present invention, and FIG. , and FIG. 3 are graphs showing the relationship between voltage and time. DESCRIPTION OF SYMBOLS 1... Workpiece to be welded, 3... Welding torch, 5... Welding wire, 8... Welding power source, 11... Counter, 12
...Reference device, 13...Comparator. .

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 被溶接物と溶接ワイヤ間の接触回数を検出するカウンタ
と、判定基準を設定する基準器と、前記カウンタの出力
信号と該基準器の設定信号とを比較し、カウンタの出力
信号から被溶接物への溶接ワイヤの接触回数が基準器に
設定された回数を越えたことを判断したとき、溶接電源
に対して通電オフの指令信号を発する比較器を備えたこ
とを特徴とするアーク溶接装置。A counter detects the number of times of contact between the workpiece and the welding wire, a reference device sets a judgment criterion, and the output signal of the counter is compared with the setting signal of the reference device, and the workpiece is determined based on the output signal of the counter. An arc welding device characterized by comprising a comparator that issues a command signal to turn off energization to a welding power source when it is determined that the number of times a welding wire is contacted exceeds a number set in a reference device.