Axle housing drilling tool

The utility model discloses an axle housing drilling tool, which belongs to the technical field of axle housing processing and comprises a height adjusting device, guide rails are connected to two ends of the lower part of the height adjusting device, a support rod is arranged above the guide rails, a placing table is connected above the support rod, and the placing table is arranged on the support rod. A fixing rod is connected to the upper portion of the guide rail and located on one side of the supporting rod, an L-shaped rod is connected to the lower portion of the containing table, an inserting block is connected to the side, close to the L-shaped rod, of the fixing rod, an inserting groove is formed in the position, corresponding to the inserting block, of the side wall of the L-shaped rod, and a groove is formed in the inserting block. By arranging the fixing rods, the L-shaped rods, the grooves, the springs, the inserting grooves, the inserting blocks, the fixing rings, the limiting rods and other str