Draught fan brake support drilling die

The utility model discloses a fan brake support drilling die, belongs to the technical field of fan brake support machining, and aims to provide a fan brake support drilling die which solves the problem that an existing fan brake support is low in drilling efficiency. The drill jig comprises a first circular ring drill jig, a second circular ring drill jig, a first drill bushing, a second drill bushing and a third drill bushing, a plurality of first positioning holes and a plurality of second positioning holes are formed in the first circular ring drilling jig, a plurality of third positioning holes are formed in the second circular ring drilling jig, the first positioning holes, the second positioning holes and the third positioning holes correspond to the positions, to be drilled, of the fan brake support in a one-to-one mode, and the first drilling sleeves are fixed in the first positioning holes in a spot welding mode. The second drill bushing is fixed in the second positioning hole in a spot welding mode