Cleaning device for machining hubbed welding neck flange

The invention relates to the technical field of flange machining treatment, in particular to a cleaning device for machining a hubbed welding neck flange, which comprises a bottom bracket, an inner side cleaning mechanism is assembled in the center of the bottom bracket, and four adjusting mechanisms for horizontal movement adjustment relative to the center of the bottom bracket are distributed on the bottom bracket around the center circumference; wherein outer side cleaning mechanisms used for synchronously cleaning the upper end face of a flange plate and the outer wall of the neck in the hubbed welding neck flange are fixedly assembled at the moving ends of the two adjusting mechanisms, and shifting and rotating mechanisms used for shifting the hubbed welding neck flange to rotate are fixedly assembled at the moving ends of the other two adjusting mechanisms. According to the device provided by the invention, the whole surface of the hubbed welding neck flange can be completely covered and automatically b