Protective cover stamping die

The utility model relates to the technical field of metal stamping, and discloses a protective cover stamping die which comprises an upper die and a lower die, the upper die and the lower die can be close to each other or far away from each other in the vertical direction, a die holder is arranged at the lower end of the lower die, and the lower die can slide by a preset distance relative to the die holder in the left-right direction. According to the protective cover stamping die, the upper die body, the lower die body, the second positioning column and the guiding ball head are arranged, when the upper die body and the lower die body are mutually closed, the lower die body can move rightwards through the guiding effect of the second positioning column and the guiding ball head so as to push a plate-shaped blank to move in the direction where the upper die body is located, and therefore the upper end face of the plate-shaped blank can be completely attached to the upper die body; the lower end face of the pl