Robot actuator with improved structure

The robot actuator with the improved structure comprises a placement seat, a threaded rod is rotationally arranged in the placement seat, sleeves are arranged on the two sides of the surface of the threaded rod in a threaded mode, moving blocks are fixedly arranged at the bottom ends of the two sleeves, and the bottom ends of the two moving blocks extend to the outside to be fixedly connected with connecting clamping seats. According to the robot actuator with the improved structure, two limiting blocks are pushed to move upwards through two electric telescopic rods, so that the two limiting blocks are clamped with two limiting holes, two limiting seats are limited, a threaded rod is limited, and then two clamping plates are limited; the stability of the product in the clamping process can be guaranteed, the two fixing bolts are loosened to be separated from the two threaded holes, then the two clamping plates are moved towards one side, the two connecting clamping bases are separated from the two connecting