Concrete block surface polishing device

The utility model relates to the technical field of concrete processing, and discloses a concrete block surface polishing device which comprises a bottom plate and two first vertical plates, the two first vertical plates are fixedly arranged on the two sides of the upper surface of the bottom plate, a rotating rod is rotationally arranged between the two first vertical plates, the rod wall of the rotating rod is fixedly sleeved with a rotating block, and the rotating block is fixedly connected with the bottom plate. A plurality of mounting grooves are formed in the side wall of the rotating block, clamping mechanisms are arranged on the inner sides of the mounting grooves, a second vertical plate is fixedly arranged on one side of the upper surface of the bottom plate, side plates are fixedly arranged at the two ends of one side of the second vertical plate, and a reciprocating lead screw is rotationally arranged between the two side plates; the rod wall of the reciprocating lead screw is sleeved with a slidi