Automatic stamping die for thin-wall annular workpieces

The invention discloses an automatic stamping die for thin-wall annular workpieces and belongs to the technical field of stamping dies. The automatic stamping die comprises an upper die part and a lower die part. The upper die part comprises an upper die base, a connection plate and a stamping plate. The lower die part comprises a lower die base and a lower die plate which are fixedly mounted together. A drawing convex die, a punching convex die and a shaping convex die are sequentially installed on the connection plate of the upper die part. The stamping plate is provided with stamping convex rings surrounding the drawing convex die, the punching convex die and the shaping convex die correspondingly. A drawing elastic ejector, a discharging hole and a shaping elastic ejector are sequentially and correspondingly arranged on the lower die plate of the lower die part. A molding die plate is arranged between the stamping plate and the lower die plate, and is provided with a drawing concave die, a discharging con