New energy automobile iron core step shape stamping manufacturing method

The invention provides a new energy automobile iron core step appearance stamping manufacturing method. The method comprises the following steps that A, feeding is conducted; step B, punching a large-outer-diameter sheet type runner hole; c, large-outer-diameter sheet type blanking is carried out; step D, continuously producing the large-outer-diameter sheet type; e, punching an outer edge hole; f, blanking of the small-outer-diameter sheet type; step G, continuously producing the large-outer-diameter sheet type to form an iron core; through switching cooperation of the first pulling plate, the stator shape male die and the runner hole die, runner holes or outer edge holes can be punched according to requirements only through one die; by means of the structural design of the outer edge and the welding groove, blanking of large-outer-diameter pieces and small-outer-diameter pieces can be achieved only through one die. The welding parts and the second welding grooves are the same in shape, so that the large-out