To acquire a jig structure able to omit fine control of electrode height by keeping a upper end surface of lower electrode and a weldment in definite contact state with jig pressure means at the time of welding.
A resistance welding equipment is provided with upper and lower part electrodes 1, 2. Resistance welding is carried out by supplying material 8 to be welded with a feed means between the both electrodes 1, 2. Both electrodes 1, 2 are pressurized by upper and lower part cylinders 3, 4. The feed means A supports a movable jig 11 mounting the material 8 to be welded by a fixed jig 9 with a spring 12 and keeps an upper end part 20 of the lower part electrode 2 and the material 8 so as to be held in a constant contact state always. Namely, the material 8 on the movable jig 11 is inserted and is held between the upper and lower part electrodes 1, 2 by a base machine 10 and the welding is continuously carried out by pressure current flow. As a result, operation efficiency is raised and stabilization of the weld quality is attained.
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HIRAKAWA TETSUTADA
KASEDA MASAYUKI
