Automatic focusing optical lens assembly

The utility model discloses an automatic focusing optical lens assembly which comprises a shell, an inner shell is arranged in the shell, a plurality of fixing plates are annularly arranged on the outer wall of one end of the inner shell, a lead screw is arranged on one fixing plate, guide rods are arranged on the other fixing plates, a plurality of inner cavities are annularly formed in the outer edge of the interior of the shell, and the guide rods are arranged in the inner cavities. A disc-shaped gear is arranged at the top in the shell through a bearing, a lead screw nut is arranged at the axis of the disc-shaped gear and matched with the lead screw, a rotating shaft is further arranged at the top in the shell, a bevel gear meshed with the disc-shaped gear is arranged at one end of the rotating shaft, and the other end of the rotating shaft is inserted into the outer portion of the shell. A motor is arranged at the top end of the shell; the output end of the motor is connected with the rotating shaft; thr