Flange and center hole integrated protection structure

The utility model discloses a flange and central hole integrated protective structure, which relates to the field of hub powder spraying and comprises a central hole positioning protector, flange surface tray protectors are symmetrically arranged on two sides of the bottom of the central hole positioning protector, and bumps are arranged on two sides of the central hole positioning protector. The protruding blocks and the grooves are arranged so that the center hole positioning protection can be conveniently and rapidly connected and fixed with the flange face tray protection, the inner wall of the center hole positioning protection is attached to an original powder spraying support in a shape follow-up mode, powder can be prevented from entering the center hole positioning protection during powder spraying, the cleaning difficulty of a flange and a center hole is lowered, and the production efficiency is improved. And meanwhile, the tray can be used for a long time after being placed once, the times of takin