| 摘要 |
PROBLEM TO BE SOLVED: To achieve extension of an electrode opening stroke of a stationary type resistance spot welding machine, shortening of the secondary conductor, and lightening of a movable part. SOLUTION: In a welding method in which welding is performed by converting rotary motion by an electric motor M into linear motion of a pressure rod 8 and generating a torque for applying pressure between electrode chips E1, E2, mechanical and/or electrical connection and the release thereof are carried out between the secondary conductors consisting of a movable side power supply member 10 arranged on the pressure rod side and a fixed side power supply member 11 arranged on the welding machine main body side by using the electrode pressure by the pressure rod or the linear motion at the time of opening.
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