Loading and unloading device for stamping dies

The utility model discloses a loading and unloading device for stamping dies. The device comprises a die changing platform, wherein a plurality of push-pull mechanisms which are driven by screw-nut mechanisms are uniformly distributed and arranged on the die changing platform in a vertical direction, the push-pull mechanisms comprise push-pull seats and push rods which are hinged to the push-pull seats, connecting components which are matched with dies for use are arranged at the front ends of the push rods, and push-pull clamping grooves are formed in the lower parts of the push-pull seats; the screw-nut mechanisms comprise screws which are arranged below the push-pull mechanisms and driven by a power source to rotate, the screws are in threaded connection with nuts which are matched with the screws for use, and the nuts are fixedly arranged in the push-pull clamping grooves; a plurality of positioning pin shafts which are matched with positioning grooves in the dies for use are arranged in a vertical direction on the die changing platform. The device has the advantages that the movement of the screws on the die changing platform is used for driving the push-pull mechanisms to push the dies out of a machine tool and pull the dies into the machine tool, the structure of the device is simple, the device is steady to push and pull, the device is convenient and rapid, the labor intensity is reduced, and the production efficiency is improved.