Metal plate stamping die and machining method of stamping product

The invention provides a metal plate stamping die and a machining method of a stamped product, and relates to the technical field of metal plate stamping machining. The die comprises an upper die mechanism and a lower die mechanism which are used in cooperation; the lower die mechanism comprises a male die; the upper die mechanism comprises a female die, a product punching assembly, a blanking assembly, a bending assembly, a convex edge forming assembly, a prismoid forming assembly and a secondary positioning assembly. The method adopts the metal plate stamping die. A metal plate is formed after being driven by external feeding equipment to pass through the product punching assembly, the blanking assembly, the bending assembly, the convex edge forming assembly, the prismatic table forming assembly and the secondary positioning assembly, that is, the metal plate is formed after being punched and machined for multiple times, the stress condition of the metal plate in the same time period is simpler, and the pro