Metal plate edge pressing and bending die

The utility model discloses a metal plate edge pressing and bending die which comprises a supporting base, a supporting guide rod is installed on the supporting base, a supporting transverse plate is installed on the top of the supporting guide rod, a hydraulic cylinder is installed on the supporting transverse plate and connected with a linkage sliding block, an upper die is installed on the linkage sliding block, and a lower die is arranged below the upper die. A positioning guide mechanism is installed on the lower die and comprises a positioning guide support, a linkage traction shaft, a first transmission lead screw, a second transmission lead screw, a traction sliding block, a positioning guide base plate and a traction assembly. According to the sheet metal edge pressing and bending die, the sheet metal part is placed on the lower die, the adjacent positioning and guiding base plates are tightly attached to the side end face of the sheet metal part, the hydraulic cylinder drives the linkage sliding blo