Stamping die for automatic turning and bending of sheet

The utility model discloses a stamping die for automatic turning and bending of sheet materials. Bottom plate, a mounting plate is fixedly mounted at the top end of the bottom plate; a lower die baseis fixedly mounted on the top wall of the mounting plate; an upper die base matched with the lower die base is movably installed at the top end of the lower die base. The top end of the upper die baseis connected with a hydraulic driving device; a forming groove matched with the upper die base is formed in the top wall of the lower die base, a thin plate is placed on the top wall of the lower diebase, a supporting plate matched with the thin plate is movably installed in the forming groove, a containing groove matched with the supporting plate is formed in the bottom wall of the inner side of the forming groove, and a fixing device matched with the thin plate is installed on the supporting plate. The supporting plate matched with the thin plate is movably installed in the forming groove,the fixing device matched w