Punching machine protection device for producing battery case

The utility model discloses a punching machine protection device for producing a battery case. Bottom plate, first sliding grooves are formed in the four corners of the top of the bottom plate. Limiting plates are slidably connected into the first sliding grooves. The tops of the limiting plates are fixedly connected with supporting rods; a placing plate is fixedly connected between the tops of the supporting rods; a return spring sleeves the outer side of the supporting rod and is positioned between the bottom of the placing plate and the top of the bottom plate; a protective plate is fixedlyconnected to one end of the top of the baseplate; a groove is formed in the protection plate; the beneficial effects of the utility model are that: the utility model discloses reach is: the beneficial effect is: The utility model has a compact structure, simple and convenient operation, practicality, by arranging the retractable protective net, the punching machine can be well protected when working or not working, when