Clamping structure for plate punching machine

The utility model provides a clamping structure for a plate punching machine, which belongs to the field of punching clamping equipment and comprises an equipment bottom plate, slideways arranged above two sides of the equipment bottom plate, chutes arranged in the slideways, limiting plates arranged at two ends of the slideways, a sliding module arranged in the middle of the slideways, and a plate clamping frame fixedly arranged above the sliding module. Supporting steel plates are arranged below the two sides of the plate clamping frame, clamping notches are formed in the inner side of the plate clamping frame, an electric lifting rod can be lifted by starting an electric lifter, an electric rotator is started to enable a rotating shaft to drive a connecting block to rotate through a rotating limiter, and then an electric door plate connected with the connecting block is rotationally opened. A to-be-punched plate is placed in the plate clamping frame, then the electric door plate is closed, the hydraulic te