Flange fixed connection positioning tool for rotary frame machining

The utility model discloses a flange fixedly-connecting and positioning tool for machining a rotary frame, the flange fixedly-connecting and positioning tool comprises an outer side support, a connecting beam and an inner side support, and the outer side support and the inner side support are connected into a whole through the connecting beam; the outer side support and the inner side support respectively comprise a vertical plate which is vertically arranged, a plurality of outer matching holes corresponding to the bolt holes in the outer flange plate in position are formed in the vertical plate of the outer side support, and a plurality of inner matching holes corresponding to the bolt holes in the inner flange plate in position are formed in the vertical plate of the inner side support. According to the rotary frame, welding and positioning of the inner flange plate and the outer flange plate can be rapidly and conveniently achieved when the flange fixed connection positioning tool is used for machining, p