Punching device for PCB production

The utility model discloses a punching device for PCB (printed circuit board) production, which comprises a workbench and a punching plate arranged above the workbench, the top of the workbench is fixedly connected with a plurality of fixing rods and a clamping mechanism for fixing the position of a PCB, and the tops of the fixing rods are fixedly connected with a placing plate; the clamping mechanism comprises a plurality of positioning clamps slidably connected to the top of the placing plate, mounting wheels rotatably connected to the top of the workbench and connecting rods corresponding to the positioning clamps in number, one end of each positioning clamp is fixedly connected with a reinforcing plate, one end of each reinforcing plate is fixedly connected with an extension rod, and the bottom end of each extension rod is fixedly connected with a mounting rod; and a limiting frame for limiting the moving path of the mounting rod is arranged at the top of the workbench. The clamping mechanism is driven by