Perforating device convenient to position

The punching device convenient to position comprises a bottom plate, a connecting plate is installed at one end of the top of the bottom plate, reserved grooves are formed in the two sides of one end of the connecting plate, a clamping structure is arranged at the bottom end of the interior of the connecting plate, and the clamping structure comprises a threaded rod; the threaded rods are movably mounted on the two sides of the inner bottom end of the connecting plate, moving blocks are mounted on the outer portions of the threaded rods, and clamping plates are mounted at one ends of the moving blocks. The clamping structure is arranged, a servo motor is started to drive a first gear to rotate, then a second gear can rotate, two threaded rods can be driven to rotate in the rotating process, and the threaded rods can rotate to drive two moving blocks to move in the opposite directions at the same time; the clamping plates can be driven to move in the reserved groove in the opposite direction at the same time,