Special fixture for motorcycle cylinder body production

The utility model discloses a special fixture for motorcycle cylinder production, which comprises a base and fixing seats symmetrically mounted on two sides of the surface of the base, a linear push rod is mounted in the middle of the base, a supporting plate is mounted at the top of the linear push rod, a positioning pile is arranged in the middle of the supporting plate, coaxial shaft holes are machined on the two fixing seats, and square shafts are sleeved in the shaft holes. Air cylinders are installed on the opposite side walls of the two fixing seats, the extending ends of the air cylinders are arranged on the corresponding square shafts in a sleeving mode through connecting shaft sleeves, chucks are installed at the opposite ends of the two square shafts, and driven chain plates are arranged on the square shafts in the fixing seats in a sleeving mode. The fixing base is arranged on the bottom plate, the square shaft is installed on the fixing base, the air cylinder can drive the chuck on the square sha