Cold-rolled steel sheet polishing device

The utility model discloses a cold-rolled steel plate polishing device, which relates to the technical field of steel plates and comprises a machine body, a first sliding groove is formed in the machine body, a first sliding plate is slidably connected in the first sliding groove, two fixing plates are fixedly connected to the upper surface of the first sliding plate, and a second sliding plate is fixedly connected to the bottom of the first sliding plate. A limiting sliding groove is formed in the bottom of the second sliding plate, a fixing shaft is placed in the limiting sliding groove, and a transmission plate is fixedly connected to the bottom end of the fixing shaft. According to the polishing device for the cold-rolled steel sheet, the fixed shaft is arranged and can be driven by a transmission plate to do circular motion in a limiting sliding groove, so that a first sliding plate does reciprocating motion in a first sliding groove, and two polishing columns are arranged and can be used for polishing t