Stainless steel connecting piece polishing device

The utility model provides a stainless steel connecting piece polishing device. The stainless steel connecting piece polishing device comprises a machine body, a mounting base and a polishing mechanism. A waste chip groove is formed in the upper surface of the machine body, a sliding rod and a first lead screw which are arranged in parallel are arranged at the top end of the waste chip groove, and a mounting base is arranged on the sliding rod and the first lead screw at the same time. The mounting seat comprises a worktable and a base which are arranged up and down, the worktable is rotationally arranged on the base, and a fixing mechanism for fixing a connecting piece is arranged on the upper surface of the worktable; a groove is formed in the upper surface of the base, a transmission gear is fixedly arranged in the middle of the lower surface of the workbench and rotationally arranged in the groove, a stirring gear meshed with the transmission gear is further rotationally arranged in the groove, and a notc