Industrial cartridge case surface expansion punching machine

The invention relates to a punching machine, in particular to an industrial cartridge case surface expansion punching machine. The industrial cartridge case surface expansion punching machine is high in production efficiency, the product production cost is reduced, and the problem of missing detection of a cartridge case is solved. The industrial cartridge case surface expansion punching machine comprises a bottom plate and a clamping mechanism, and a punching mechanism is arranged at the front side of the bottom plate; and the clamping mechanism is arranged on the punching mechanism. According to the industrial cartridge case surface expansion punching machine, the cartridge case is placed in a placing common workbench, an air cylinder is started, a telescopic rod of the air cylinder drives an extrusion rod to move downwards, the surface of the cartridge case is punched, and the punching effect is achieved; sliding clamping plates at the left side and the right side are pushed reversely, first springs are co