Punching and shearing method of stator punched sheet and rotor punched sheet of high-efficiency energy-saving motor

The invention relates to a punching and shearing method of a stator punched sheet and a rotor punched sheet of a high-efficiency energy-saving motor. The punching and shearing method specifically comprises the following steps: punching the stator punched sheet and the rotor punched sheet of the motor by a falling composite die at one time, wherein the falling composite die comprises a convex die and a concave die; the convex die comprises a stator outer edge convex die, a stator inner edge groove convex die, a rotor outer edge groove convex die and a rotor inner edge hole convex die; the stator outer edge convex die and the rotor inner edge hole convex die are concentrically arranged; the convex die is matched with the convex die; laminating the stator punched sheet and the rotor punched sheet of the motor punched at one time by the falling composite die to form a motor stator and a motor rotor, wherein the overlapping coefficient is high, the burrs of the punched sheets are extremely small, the laminated iron core has better concentricity, and the manufactured motor has low electromagnetic noise, and the efficiency index can reach the efficiency requirement in the standard GB18613-2012.