Forming and trimming die for automobile lower shell

The utility model discloses a forming and trimming die for an automobile lower shell. The forming and trimming die comprises a forming and trimming die body. The forming trimming die comprises a forming die; the forming die comprises a forming male die and a forming female die; a forming female die is arranged over the forming male die; the middles of the two ends of the forming male die protrude correspondingly, and the top view of the protruding parts of the two ends of the forming male die is semicircular. One end of the forming male die protrusion is a small semicircular protrusion, and the other end of the forming male die protrusion is a large semicircular protrusion. The two opposite ends of the middle of the forming male die are arranged in a low-lying mode, and the two sides of the middle of the forming male die are arranged in an outward sinking mode. A protruding point is arranged in the center of the middle of the forming male die in a protruding mode. An inner cavity of the forming female die is