Perforating device for nut production and machining

A punching device for nut production and machining comprises a workbench and a punching mechanism, vertical plates are symmetrically welded to the lower portion of the punching mechanism, a rotating cylinder is rotationally connected between the vertical plates, a stepping motor is installed on the outer vertical face of one of the vertical plates, and the power output end of the stepping motor is in transmission connection with the rotating cylinder; a plurality of fixing rods are detachably connected to the exterior of the rotary drum, a plurality of positioning grooves are formed in the surfaces of the fixing rods at equal intervals, through holes are formed in the bottom opening ends of the positioning grooves, clamping grooves are formed in the joints of the fixing rods and the outer wall of the rotary drum, and magnetic induction sheets are installed on the bottom walls of the clamping grooves; according to the nut punching device, the magnetic block embedded in the bottom of the fixing rod is magnetica