SEAM-WELDING DEVICE AND SEAM-WELDING METHOD

• Main Authors: IGAUE MITSUTAKA, KODAMA TETSUYA, KAWAI YASUHIRO, KURAMOTO SHINGO
• Format: Patent
• Language: English; Japanese
• Published: 09.04.2020
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

To provide a seam-welding device and a seam-welding method which can suppress deterioration in detection accuracy of a work-piece position detection sensor.SOLUTION: A seam-welding device comprises: an electrode holding mechanism 14 that holds a pair of roller electrodes 12A and 12B so that directions of shafts of the pair of roller electrodes 12A and 12B can be changed; a work-piece position detection sensor 16, arranged at a position separated away from edge parts of a flange pair FP sandwiched by the pair of roller electrodes 12A and 12B, which detects positions of the edge parts; a control part 18 that controls the electrode holding mechanism 14 on the basis of a detected result by the work-piece position detection sensor 16; and an air curtain generation mechanism 20 that generates an air curtain AC between the work-piece position detection sensor 16 and the flange pair FP.SELECTED DRAWING: Figure 3 【課題】ワーク位置検出センサの検出精度の低下を抑制できるシーム溶接装置及びシーム溶接方法を提供する。【解決手段】シーム溶接装置は、一対のローラ電極１２Ａ、１２Ｂを一対のローラ電極１２Ａ、１２Ｂの軸の向きを変更可能に保持する電極保持機構１４と、一対のローラ電極１２Ａ、１２Ｂで挟まれたフランジ対ＦＰの縁部から離間した位置に配置され、該縁部の位置を検出するワーク位置検出センサ１６と、ワーク位置検出センサ１６の検出結果に基づいて電極保持機構１４を制御する制御部１８と、ワーク位置検出センサ１６とフランジ対ＦＰとの間にエアカーテンＡＣを生成するエアカーテン生成機構２０と、を備える。【選択図】図３