Dustproof servo electric cylinder

The utility model provides a dustproof servo electric cylinder. The dustproof servo electric cylinder comprises a base, a cylinder body, a servo motor, a positioning frame, a dustproof mechanism, a threaded barrel, a threaded rod, an adjusting block, a trunnion connecting piece, a piston rod, a round block and a supporting seat, the cylinder body and the servo motor are fixedly installed on one side of the base, and sliding grooves are symmetrically formed in the top and the bottom of the cylinder body; a piston rod is slidably inserted into the end, away from the base, of the cylinder body, a round block is fixedly connected to the end, away from the base, of the piston rod, and a trunnion connecting piece is fixedly connected to one side of the round block. According to the dustproof servo electric cylinder provided by the utility model, dust is prevented from adhering to the outer side of the piston rod and entering the cylinder body in the operation process of the piston rod through the dustproof mechanis