Special-shaped part inner wall grinding device

The invention provides a special-shaped part inner wall grinding device, and mainly relates to the field of machining equipment. A special-shaped part inner wall grinding device comprises a walking cart and a PLC control unit, a walking trolley is arranged on the top face of the walking cart, a ram trolley is installed on the top face of the walking trolley, and the ram trolley is connected with a grinding head through a motor. The special-shaped inner wall steel ingot mold polishing device has the beneficial effects that the special-shaped inner wall steel ingot mold polishing device is simple in structure and convenient to use, through cooperation of the walking cart, the walking trolley, the ram trolley and the motor, the polishing head can be driven to polish a steel ingot mold, then the polishing time is shortened, the polishing efficiency is improved, the physical labor of operators is reduced, and convenience is brought to polishing of the special-shaped inner wall steel ingot mold. 本发明提供一种异形件内壁打磨装置，主要