Deep drawing forming composite die for shallow conical pieces with sunken side walls

The invention discloses a deep drawing forming composite die for shallow conical pieces with sunken side walls, and relates to a deep drawing forming composite die. The problem that the conventional die is difficult in forming the shallow conical pieces with the sunken side walls is solved. The upper end of a guide sleeve is in sliding fit with a guide post, and the lower end of the guide sleeve is in interference fit with a lower guide post hole of a lower template; a blanking female die is arranged on the lower template; an upper convex-concave die is connected with a fixed plate; a backingring is positioned between an upper template and the fixed plate; the upper convex-concave die is placed in the blanking female die; a spring and a baffle pin are arranged in circular bead through holes of the blanking female die; a limiting screw is arranged on the lower template; an ejection plate is arranged in the backing ring; a stripping rod is arranged on the backing ring; a punching male die fixed plate and a shim plate are arranged in the upper convex-concave die; a punching male die is arranged in a lower convex-concave die; the lower convex-concave die is arranged in a profile holeof the upper convex-concave die; a return plate is sleeved on the punching male die; a blank holder is sleeved on the lower convex-concave die; and a side pressing rubber pad and a supporting plate are sleeved on a solenoid. The die is used for deep drawing forming of the shallow conical pieces with the sunken side walls.