Drilling machine tool for quickly machining semi-axle tire bolt hole

The utility model belongs to the technical field of automobile drive axle part machining, and particularly relates to a drilling machine tool for quickly machining a semi-axle tire bolt hole, which comprises a support device, a drill jig device and a top plate, the supporting device is fixedly connected with a drilling machine workbench. The drilling jig device comprises a drilling jig plate, a drilling sleeve and a positioning sleeve, the drilling jig plate is detachably and fixedly connected with the supporting device, and the drilling sleeve and the positioning sleeve are fixed to the drilling jig plate in an interference fit mode; and the top plate is fixed with a hydraulic tip of a drilling machine and is used for propping against the non-machining end of the half shaft, so that the half shaft is clamped under the combined action of the positioning sleeve. Corresponding positioning sleeves and drill plates are manufactured according to half shafts of different specifications, rapid switching of series ha