Polishing device

The utility model discloses a polishing device, which relates to the technical field of plastic product polishing and comprises a center plate, a pair of fixing plates are fixedly arranged on two sides of the upper surface of the center plate, two pairs of fixing blocks are fixedly arranged on the inner sides of the fixing plates, fixing grooves are formed in the fixing plates, and extension plates are fixedly arranged on two sides of the center plate. First telescopic rods are fixedly arranged at the upper ends of the extension plates, moving plates are fixedly arranged at the telescopic ends of the first telescopic rods, a pair of rotating plates are rotationally arranged at the two ends of each moving plate, connecting plates are rotationally arranged on the inner sides of the rotating plates, and a pair of fixing rods are fixedly arranged on the inner sides of the fixing plates. The telescopic end of the first telescopic rod drives the moving plate to move transversely, the moving plate drives the gear to