Steel pipe derusting and polishing device

The utility model discloses a steel pipe derusting and polishing device which comprises a machining table, a first rotating shaft, a second rotating shaft, a first rotating shaft and a second rotating shaft. The clamping and rotating assembly comprises a base placed on the top face of the machining table, a first motor fixed to the base, a fixing sleeve fixed to the driving end of the first motor and a bracket fixed to the top face of the machining table, and the base can move relative to the machining table and is fixed to the machining table at the required position; and the grinding assembly comprises a mounting frame capable of moving back and forth relative to the first motor and grinding machines symmetrically fixed to the mounting frame. The driving mechanism comprises vertical plates symmetrically fixed to the top face of the machining table and a driving assembly installed on the vertical plates and capable of driving the installation frame to move front and back. The rusty steel pipe polishing devic