WELDING TORCH AND WELDING TORCH COOLING SYSTEM

To provide a welding torch which is suitable for achieving improvement of workability during replacement of a torch body in a water-cooled type torch.SOLUTION: A welding torch 1 includes a torch head 20 and a torch body 30 detachably connected with the torch head 20. The torch head 20 has: torch hea...

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Hauptverfasser: MORITA YUKIYA, MINAMOTO TETSUSHI, FUKUNAGA YOSHIAKI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a welding torch which is suitable for achieving improvement of workability during replacement of a torch body in a water-cooled type torch.SOLUTION: A welding torch 1 includes a torch head 20 and a torch body 30 detachably connected with the torch head 20. The torch head 20 has: torch head side passages 21, 22 for flowing a coolant; gateways 23, 24 which respectively lead to the torch head side passages 21, 22; and a movable part 25 which can move in an axial direction. The torch body 30 has: a torch body side passage 31 for flowing the coolant; and connection ports 32, 33 which respectively lead to both ends of the torch body side passage 31. When the torch head 20 and the torch body 30 are connected with each other, the gateways 23, 24 and the connection ports 32, 33 communicate. When the torch head 20 and the torch body 30 are separated from each other, the gateways 23, 24 are closed by the movable part 25.SELECTED DRAWING: Figure 4 【課題】水冷式トーチにおいてトーチボディの交換作業時の作業性向上を図るのに適した溶接トーチを提供する。【解決手段】溶接トーチ1は、トーチヘッド20と、トーチヘッド20に着脱可能に接続されるトーチボディ30と、を備え、トーチヘッド20は、冷却水を流すためのトーチヘッド側流路21,22と、当該トーチヘッド側流路21,22にそれぞれ通じる出入口23,24と、軸方向に移動可能な可動部25と、を有し、トーチボディ30は、冷却水を流すためのトーチボディ側流路31と、当該トーチボディ側流路31の両端にそれぞれ通じる接続口32,33と、を有し、トーチヘッド20およびトーチボディ30の接続時には、出入口23,24と接続口32,33とがそれぞれ連通し、トーチヘッド20およびトーチボディ30の分離時には、可動部25により出入口23,24が閉塞される。【選択図】図4