Metal product polishing device

The utility model discloses a metal product polishing device, and relates to the technical field of metal pipe surface polishing. The metal product polishing device comprises a workbench, a discharging opening is formed in the surface of the workbench, a protection box is fixedly arranged at the top of the workbench, a box door is installed on the front face of the protection box in a hinged mode, an electric push rod is fixedly arranged at the top of the workbench, and the telescopic end of the electric push rod is fixedly connected with a limiting mechanism. A driving mechanism is arranged at the top of the workbench, a grinding mechanism is arranged on the surface of the driving mechanism, and a collecting box is arranged at the bottom of the workbench. According to the metal pipe polishing device, the two sets of limiting rods move towards the two sides respectively and make contact with the inner wall of a metal pipe, so that metal pipes of various specifications are limited and fixed, the polishing mech