| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotatable spot welding machine which can be space-saved despite needing a current as high as tens of thousands of amperes. SOLUTION: A rotary shaft 4 is fixed to a supporting member 2 by fixing members 3, 3'. A first loading stand 5 for loading a power source and a control unit 6 of a spot welding machine is fixed to an upper portion of the rotary shaft. A second loading stand 7 is fixed to a lower portion of the rotary shaft. U-shaped power supply bars 8 are installed on a lower portion of the first loading stand and an upper portion of the second loading stand. An arm 9 is provided on a fore end of the power supply bar installed on the lower portion of the first loading stand. A pressing mechanism 10 is provided on an upper portion of the arm. A chip holder 11 is provided on the fore end of the arm, and a chip 12 is provided on a fore end of the chip holder. A chip holder 11' is provided on a fore end of the power supply bar installed on the upper portion of the second loading stand, and a chip 12' is provided on the fore end of the chip holder. COPYRIGHT: (C)2008,JPO&INPIT
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