Steel pipe polishing machine capable of preventing shaking

The utility model discloses an anti-shaking steel pipe polishing machine which comprises a mounting frame, and lower mounting seats are transversely fixed at the two ends of the bottom in the mounting frame respectively. When the steel pipe polishing machine capable of preventing shaking is used, after a pipe fitting is placed at the top ends of two sets of rotating rollers at the top end of a lower mounting base, an oil cylinder is controlled to start to move an upper mounting base and two sets of polishing discs at the bottom down to the two sides of the pipe fitting, and then an air cylinder can be controlled to start to move an arc-shaped frame down; and finally, a first driving motor is controlled to start to drive a polishing disc to rotate to polish the outer portion of the pipe fitting, the arc-shaped frame and the pressing roller can conduct auxiliary abutting and fixing on the top of the steel pipe in the steel pipe polishing process, shaking of the steel pipe during polishing is reduced, and the po