High-performance chuck structure

The utility model discloses a high-performance chuck structure which comprises a mounting base, an air cylinder is connected to the front end of the mounting base, the free end of the air cylinder is connected with clamping jaws, every two clamping jaws are symmetrically connected to the front surface of a chuck body, the clamping jaws are slidably connected with the chuck body through guide rails, and clamping jaw adjusting blocks are arranged between the sections, away from the center of the chuck body, of the clamping jaws and the chuck body. The clamping jaw adjusting blocks are used for adjusting the distance between the clamping jaws and the center of the disc body, the side face of the disc body is provided with an air-blowing and oil-spraying gas path, and the other end of the air-blowing and oil-spraying gas path is opened towards the guide rail. The gas blowing and oil injection gas path is arranged on the side face of the disc body, the opening of the other end of the gas blowing and oil injection