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    • 95. 发明公开
    • SEAM WELDING DEVICE
    • NAHTSCHWEISSVORRICHTUNG
    • EP1470886A1
    • 2004-10-27
    • EP03706907.7
    • 2003-01-30
    • Dengensha Manufacturing Company LimitedXenesys Inc.
    • MATSUZAKI, ToyoakiSIBA, Shozi
    • B23K11/30
    • B23K11/3036B23K11/061B23K11/062B23K11/063B23K2201/14
    • A seam welding apparatus enables, even when metallic sheets are arranged in a line in a short distance, the welding electrodes to come into contact only with the metallic sheet to be welded, so as to provide a reliable welding of the metallic sheets to form connected portions having high strength. The roller electrode 20, which has on its outer peripheral portion the conical electrode surface 21, is supported by the central axis inclined relative to the surface of the metallic sheet 50 to be welded, and there is provided the stationary electrode 30 in which the portion including the flat electrode surface 31 has the smaller thickness. The electrode surface 21 of the roller electrode 20 is brought into contact with the surface of one of the metallic sheets 50 to be welded, while bringing the electrode surface 31 of the stationary electrode 30 into contact with the surface of the other metallic sheet 50. It is possible to prevent interference of the roller electrode 20 and the stationary electrode 30 with the metallic sheet 50, which is not currently subjected to the welding, and to hold firmly the metallic sheet 50 to be welded by the roller electrode 20 and the stationary electrode 30 to perform the seam welding.
    • 辊电极(20)在前缘具有锥形表面和圆锥形表面的电极尖端环(21)。 辊电极(20)的旋转轴线相对于支撑在固定电极(30)的薄板电极面(31)上的焊接片(50)的平面倾斜。