Stamping back-off and negative angle product die structure

The invention discloses a stamping back-off and negative angle product die structure which comprises an upper die and a lower die which comprise an upper die seat and a lower die seat correspondingly. A supporting plate and a hinged seat are fixedly mounted on the upper die seat; a hinged hole is formed in the hinged seat, and an upper die body is mounted on the hinged seat in a hinged mode; an upper die blocking block is fixedly mounted on the side wall of the hinged seat; and a limiting table arranged corresponding to the upper die blocking block is arranged on a side wing of one side of the hinged position of the upper die body. A base is fixedly mounted on the lower die seat; a U-shaped die groove is formed in the middle of the base; U-shaped grooves are formed in the positions, on the two sides of the U-shaped die groove, of the base, and rollers are rotatably mounted in the positions, on the two sides of the U-shaped die groove, of the base; and a positioning block is further fixedly connected to the si