WELDING EQUIPMENT

To provide welding equipment in which no-load voltage is applied to a welding rod and there is no risk of electric shock of an operator even if the operator accidentally comes in contact with an abandoned welding holder and the welding rod and a base metal come in contact with each other.SOLUTION: Welding equipment comprises: an AC arc welder PS; a voltage reducing device ES that reduces the output of the AC arc welder PS to a safe voltage during stoppage; a welding holder 1 that supplies power to the welding rod 2 from the AC arc welder PS; a sensor GR that detects grip strength with which the welding holder 1 is gripped; a grip strength determining machine determining that a detection value Pr of the sensor GR is equal to or higher than a predetermined value 4; and an opening/closing unit 5 that switches whether to output the output of the AC arc welder PS to the welding holder 1 by closing a circuit or not to output the output of the AC arc welder PS to the welding holder 1 by opening the circuit. The grip strength determining machine 4 closes the opening/closing unit 5 when the detection value Pr of the sensor GR exceeds a first predetermined value.SELECTED DRAWING: Figure 1 【課題】放置された溶接ホルダーに作業者が誤って接触し、溶接棒と母材が接触しても、無負荷電圧が溶接棒に印加されず、感電の危険のない溶接装置を提供する。【解決手段】交流アーク溶接機ＰＳと、休止中に前記交流アーク溶接機ＰＳの出力を安全電圧に低減する電撃防止装置ＥＳと、前記交流アーク溶接機ＰＳから溶接棒２に給電する溶接ホルダー１と、前記溶接ホルダー１が握られている握力を検出するセンサＧＲと、前記センサＧＲの検出値Ｐｒが所定値以上であることを判定する握力判定機４と、閉路することにより前記交流アーク溶接機ＰＳの出力を前記溶接ホルダー１に出力するか、開路することにより前記交流アーク溶接機ＰＳの出力を前記溶接ホルダー１に出力しないかを切り替える開閉部５を備えており、前記握力判定機４は、前記センサＧＲの検出値Ｐｒが第一の所定値を超えた場合、前記開閉部５を閉路する。【選択図】図１