Pneumatic door of numerical control turning and milling composite machine tool

The utility model relates to the technical field of pneumatic doors of machine tools, in particular to a pneumatic door of a numerical control turning and milling composite machine tool, which automatically pushes a door body through a pneumatic device to seal the inside of equipment, so that the safety of the device is improved. Vibration generated when the pneumatic device works is reduced through the damping device, and the protection performance of the equipment is improved; metal chippings in a moving area of the door body are collected through the rail cleaning device, so that the influence of the metal chippings on the movement of the door body is reduced, and the practicability of the equipment is improved; whether an object exists in a door body moving area or not is monitored through the safety device, the situation that an operator is pinched or the door body is damaged in the door body closing process is prevented, and the safety and protection performance of the device are improved; comprising a