Small punching machine protective cover for punching corner connector on metal plate

The invention provides a small punching machine protective cover for punching a metal plate corner connector, and relates to the field of corner connector punching devices. The small punching machine protective cover of the metal plate punching corner connector comprises a punching table, a punching machine side plate and a punching machine upper plate, an induction plate is fixedly arranged in the middle of the front side of the lower end of the punching table, two first magnetic blocks are embedded in the middle of the front end of the induction plate, and lower protective covers are fixedly arranged on the two sides of the punching machine side plate correspondingly; an upper protective cover is fixedly arranged at the front end of the punching machine upper plate, the two lower protective covers comprise two protective iron plates, electric sliding rails are fixedly arranged on the opposite sides of the two protective iron plates, and electric sliding blocks are slidably arranged in the two electric slidi