Cold-rolled steel sheet shearing machine

The utility model provides a cold-roll steel plate shearing machine, and relates to the technical field of steel plate shearing. The cold-rolled steel sheet shearing machine comprises a base, three parallel supporting rollers are rotationally connected to the left side of the upper surface of the base, a limiting mechanism is fixedly installed on the upper surface of the base, a U-shaped frame is fixedly installed in the middle of the upper surface of the base, and two fixing mechanisms are fixedly installed on the upper surface of the base; measuring mechanisms are fixedly connected to the front face and the back face of the base, a hydraulic cylinder is fixedly installed on the upper surface of the U-shaped frame, a hydraulic rod is fixedly connected to the lower end of the hydraulic cylinder, and an upper shear knife is fixedly connected to the lower end of the hydraulic rod; the inner wall of the bottom of the U-shaped frame is fixedly connected with a lower shear knife, and the lower shear knife is locat