Positioning device for crankshaft laser cladding

The utility model belongs to the technical field of laser cladding, and discloses a crankshaft laser cladding positioning device which comprises a workbench, a first groove is formed in the upper end face of the workbench, a rotating screw rod is rotationally connected into the first groove, a sliding block is in threaded connection with the outer surface of the rotating screw rod, and a first supporting plate is fixedly connected to the upper end face of the sliding block. A first electric telescopic rod is fixedly connected to the upper end of the first supporting plate, a laser device is fixedly connected to the lower end of the first electric telescopic rod, a screw button is fixedly connected to one end of the rotating screw, a positioning device is installed in the middle of the upper end face of the workbench, and a second groove is formed in the middle of the upper end face of the workbench. And a collecting device is mounted in the second groove. According to the positioning device for crankshaft las