Clamping jaw device for driving workpiece to rotate

The invention belongs to the field of correction equipment, and particularly discloses a clamping jaw device for driving a workpiece to rotate. The fixed mounting plate is horizontally arranged, an advancing and retreating guide rail is arranged on the surface of the fixed mounting plate, a mounting seat is arranged on the surface of the advancing and retreating guide rail, the mounting seat is in sliding connection with the surface of the advancing and retreating guide rail, a rotary center frame is arranged on the rear side of the mounting seat, and a speed reducer is arranged on the rear side of the rotary center frame; the rear side of the speed reducer is connected with a servo motor through a screw, the output end of the servo motor is connected with the input end of the speed reducer, and the output end of the speed reducer penetrates through the rotary center frame and the installation base and then is connected with the clamping jaw mechanism. The device is novel in structure, capable of solving the