Wheel hub polishing machine

The invention belongs to the technical field of wheel hub machining equipment, and relates to polishing machines, in particular to a wheel hub polishing machine. The wheel hub polishing machine solves the technical problems that the prior art is not reasonable enough and the like. A workbench is provided with a plurality of wheel hub rotation driving and feeding devices arranged on the periphery of a grinding material barrel, and each wheel hub rotation driving and feeding device comprises a mechanical arm and a rotating fixture component respectively, wherein the rotating fixture component is used for fixing the wheel hub and capable of driving the wheel hub to rotate. The rotating fixture component is arranged on the mechanical arm, and the mechanical arm is arranged on a feeding mechanism, wherein the feeding mechanism is capable of driving the mechanical arm to act so as to enable the wheel hub installed on the rotating fixture component to enter the grinding material barrel or move out of the grinding material barrel. The feeding mechanism is arranged on the workbench. Compared with the prior art, the wheel hub polishing machine has the advantages of being reasonable in design, simple in structure, convenient to use and operate, ideal in polishing effect, and high in automation degree, and can meet different processing requirements, rough polishing and finishing polishing can be completed on a same machine, and acquisition cost of the machine of an enterprise is saved.