Novel reversible deformation electric resistance welding device

The utility model belongs to the technical field of welding devices, and particularly relates to a novel reversible deformation electric resistance welding device which comprises a supporting bottom plate, the lower end of the supporting bottom plate is connected with a supporting plate, a plurality of evenly-distributed moving rollers are arranged on the supporting plate, and a fixing mechanism is arranged at the top of the supporting bottom plate. A welding mechanism located above the fixing mechanism is further arranged at the upper end of the supporting bottom plate. According to the welding device, a user can rotate a first quick-moving handle to enable a fixing block to move on a second connecting rod, then a third pushing rod is pushed downwards to weld different positions of a workpiece, meanwhile, in the welding process, a second quick-moving handle can be rotated to enable a longitudinal screw to rotate, then a second clamping block moves in a second clamping groove, and then the workpiece is welded