Special-shaped workpiece clamping structure for numerical control machining center

The utility model relates to the field of machining centers, and particularly discloses a special-shaped workpiece clamping structure for a numerical control machining center, which comprises a clamping head, an air cylinder arranged in the clamping head, and an extrusion cavity arranged in the clamping head; an extrusion groove is formed in one end of the extrusion block, a moving block is arranged at one end of the extrusion block, the inner side end of the moving block is fixedly connected with a spring, and one end of the moving block is fixedly connected with a clamping plate; the movable groove is located in the clamping head, a movable rod is arranged in the movable groove, a connecting rod is arranged at one end of the movable rod, the other end of the connecting rod is fixedly connected with an ejector block, a rotating plate is arranged on the outer side of the movable rod, and the outer side end of the rotating plate is fixedly connected with an operation plate; the special-shaped workpiece clampin