Polishing machine convenient to adjust and used for bullet train accessory machining

The polishing machine convenient to adjust is suitable for the field of bullet train machining and manufacturing auxiliary devices and comprises a handheld box, a bearing is fixedly installed in the bottom end of the left side of the handheld box in a penetrating mode, and a follow-up rod is fixedly installed on the inner side wall of the bearing in a penetrating mode. The surface of the bottom end of the follow-up rod is fixedly installed in the top end of a rotating box in a penetrating mode, and a plurality of first adjusting boxes are fixedly installed on the surface of the bottom end of the rotating box at equal intervals. The rotating box is arranged in the handheld box through the bearing and the follow-up rod, the follow-up gear is arranged at the top end of the follow-up rod, andthe transmission gear meshed with the follow-up gear is arranged on the surface of the rotating motor, so that the follow-up rod and the rotating box can be driven to rotate through the operation of the rotating motor; the au