Die for forming gooseneck groove lower cross beam at one time

The utility model relates to a die for forming a gooseneck groove lower cross beam at one time. The die comprises an upper die body and a lower die body and is characterized in that the upper die body is composed of an upper die plate, chamfering male dies and a forming male die, wherein the chamfering male dies and the forming male die are fixed to the upper die plate; the chamfering male dies are higher than the forming male die, the four chamfering male dies are respectively provided with a punching cutting edge with the 45-degree angle, the chamfering male dies are distributed on the four corners of the forming male die, the punching cutting edges of the chamfering male dies are towards the forming male die, and fixing keys are arranged at the positions, corresponding to the chamfering male dies, of the upper die plate; the lower die body is composed of a lower die plate, a rebound ejector plate and compound female dies, wherein the rebound ejector plate corresponds to the forming female die and is arrang