High-precision miniature anti-rotation push rod electric cylinder

The utility model relates to a high-precision miniature anti-rotation push rod electric cylinder which comprises a connector, a locking nut, a ball spline nut, a ball spline shaft, a connecting sleeve, a pin, a shell, a motor, a nut and a lead screw. The locking nut, the ball spline shaft, the connecting sleeve, the nut and the lead screw are installed in the shell. The motor is installed at one end of the shell, and the ball spline nut is locked in a blind hole in the other end of the shell through the locking nut. The motor is connected with the lead screw, and the nut is arranged on the lead screw in a sliding connection and sleeving mode. The nut is fixedly connected with the connecting sleeve through the pin, and the connecting sleeve is fixedly connected with the ball spline shaft. The ball spline shaft penetrates through the ball spline nut and then is connected with the connector. Compared with the prior art, the device has the advantages of being high in operation efficiency, compact in structure, ca