Parallel manipulator

The parallel manipulator comprises a lower base, side connecting seats are fixed on the outer wall of the lower base at equal intervals, the included angle between every two adjacent side connecting seats is 120 degrees, positioning seats are arranged at the ends, away from the lower base, of the side connecting seats, and linkage arms are rotationally connected to the outer walls of the sides, away from the side connecting seats, of the positioning seats. A lifting driving part is movably mounted at the center of the top end of the lower base, a manipulator base is movably mounted at the end, away from the lower base, of the lifting driving part, a manipulator placement seat is arranged at the center of the top end of the manipulator base, and upper connecting shafts are arranged on the outer wall of the manipulator base at equal intervals. Lower connecting shafts are arranged at the ends, away from the positioning bases, of the linkage arms. Compared with a traditional mechanical arm, the parallel mechanica