High-precision full-hydraulic die forging hammer

The high-precision full-hydraulic die forging hammer comprises a bottom plate, a supporting frame and a driving hydraulic cylinder, the supporting frame is installed at the upper end of the bottom plate, the driving hydraulic cylinder is installed at the upper end of the supporting frame, an installation fixing structure is arranged at the upper end of the bottom plate, a driving structure is arranged at the upper end in the supporting frame, and the upper end of the driving structure is connected with the telescopic end of the driving hydraulic cylinder. According to the mounting and fixing structure, when the lower die is replaced, the lower die is moved to a designated position through an adjusting air cylinder, limiting is conducted through a first sliding groove and a second sliding groove, then the lower die and the fixing block are connected and fixed through a penetrating and inserting assembly, displacement of the lower die during forging can be effectively avoided, and during replacement and disasse