Can one-time forming punching machine

The utility model relates to the technical field of can punching machines, and discloses a can one-time forming punching machine which comprises a supporting table and a fixing assembly arranged on the supporting table, and the fixing assembly is connected with a rotating assembly. The fixing assembly comprises a supporting plate, an extrusion block, a first connecting block, a pushing block and a threaded rod, the supporting plate is arranged on the supporting table and provided with a containing groove and a sliding groove, the containing groove and the sliding groove are communicated with each other, the inner wall of the sliding groove makes contact with the extrusion block, and the first connecting block is installed on the side, away from the sliding groove, of the extrusion block and located in the center of the extrusion block. A cavity is formed in the first connecting block, the pushing block is arranged in the cavity and makes contact with the first connecting block, the pushing block is connected