Forming die for first automobile rear floor cross beam

The utility model provides a forming die of an automobile rear floor beam I. The forming die of the automobile rear floor beam I is used for forming a blanking piece of the automobile rear floor beam I into a primary forming piece and comprises an upper die and a lower die which correspond to each other, and the upper die can move downwards to approach and press the lower die. The upper die comprises an upper die frame, an upper die pressing core and an upper die insert; the lower die comprises a lower die frame, a lower die pressing core and a lower die insert; the upper die pressing core and the lower die pressing core can press out a top surface rib of a preliminarily-formed part, and the upper die insert and the lower die pressing core can press out the side wall shape of the preliminarily-formed part. And the upper die pressing core and the lower die insert press the flanging of the primarily-formed part. By the adoption of the structure, the first automobile rear floor beam is manufactured through the f