Resistance welding machine
AssigneeNadex Co., Ltd.
InventorShingo Kawai
Life of this patent
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Abstract
A resistance welding machine comprises clamping force representing value measuring means for measuring a clamping force representing value corresponding to a clamping force applied on workpieces by a pair of electrodes, clamping force representing value discriminating means for discriminating whether the clamping force representing value measured by the clamping force representing value measuring means is fluctuating or stabilized, and current supply means for supplying welding current through the electrode pair just after a stabilization timing when the clamping force representing value discriminating means discriminates that the clamping force representing value is stabilized.
Claims8
A resistance welding machine including a pair of electrodes between which workpieces are clamped and are welded by welding current supplied through the electrodes, said resistance welding machine comprising:
- clamping force measuring means for measuring a clamping fore applied to the workpieces by the electrodes;
- clamping force discriminating means responsive to the clamping force measured by said clamping force measuring means for determining whether the clamping force measured by said clamping force measuring means is fluctuating or is stabilized;
- and
- current supply means for supplying the welding current to the electrodes when the clamping force discriminating means determines that the clamping force is stabilized.
Dependencies are inferred from the claim text.