The Manufacturing Method of Stamping Die for Motor Stator and Rotor

1. This utility model belongs to the field of mechanical technology and relates to a stamping die, in particular to a stamping die for the stator and rotor of a motor.
Background technology:
2. The stator and rotor laminations are important components of the motor, which are generally formed by stamping silicon steel sheets.
3. The existing molds for processing stator and rotor punching pieces generally include an upper mold seat, a lower mold seat, an ejection mechanism, and a convex and concave mold fixed respectively on the upper mold seat and the lower mold seat, with a forming cavity on the concave mold. When in use, the sheet to be pressed and punched is placed at the forming cavity, and the punch is moved downwards to shape the sheet according to the shape of the forming cavity; After stamping, the ejection mechanism operates to eject the punching sheet from the forming cavity.
4. There are two problems with existing molds: 1. The ejector mechanism is generally composed of driving components and ejector rods, and the structure is relatively complex; 2. The thickness of the lamination is relatively thin, and if the force is not well controlled, it is easy to damage the lamination.
Technical implementation elements:
The purpose of this utility model is to propose a simple structure stamping die for the stator and rotor of a motor, in response to the aforementioned problems in existing technology.
6. The purpose of this utility model can be achieved through the following technical solutions: a stamping die for the stator and rotor of the motor, including an upper die seat, a lower die seat, and a convex and concave die fixed respectively on the upper and lower die seats. The convex die is columnar, and the concave die is equipped with a forming cavity. The feature is that there are vertical upper and lower barrels between the upper and lower die seats, and the upper barrel, lower barrel, and convex die are coaxial; The upper end of the upper cylinder is fixedly connected to the upper mold seat, the upper end of the lower cylinder is inserted into the upper cylinder, and the convex mold is in a cavity composed of the upper cylinder and the lower cylinder; A circular edge guard is formed on the outer wall of the upper end of the lower cylinder, a circular edge guard is formed on the inner wall of the lower end of the upper cylinder, and there is also a spring in the upper cylinder that makes the circular edge guard have a tendency to press tightly on the circular edge guard; The bottom of the lower cylinder is fixed with an electromagnet that is circular in shape and used for magnetic adsorption punching, and the electromagnet is coaxial with the lower cylinder.
7. During installation, the upper mold base is connected to a driving source to control the lifting of the upper mold base.