Micro-arc oxidation hanger device

The utility model belongs to the technical field of aviation micro-arc oxidation, and discloses a micro-arc oxidation hanger device which comprises two tight supporting shafts and a wedge structure, the two tight supporting shafts are symmetrically arranged on the two sides of the wedge structure, the outer sides of the tight supporting shafts are supporting faces of the inner side of a product, the inner sides of the tight supporting shafts are wedge faces, and the wedge faces are arranged on the outer sides of the tight supporting shafts. And the wedge structures are matched with the wedge surfaces of the supporting shafts, so that when the wedge structures move inwards, the two supporting shafts move outwards to support the stroke of the inner side of the product. According to the utility model, the inner hole in the aluminum alloy part and the detachable supporting shaft and nut are used as a supporting mechanism to carry out micro-arc oxidation, so that the technical problem that the integrity of the par