The invention discloses a method for repairing transverse threaded holes of a
bogie of a
passenger train, and relates to the technical field of
rail transit equipment repairing. The method comprises the steps of 1, detecting, 2
broaching, 3 blocking the holes, 4 drilling bottom holes, 5 tapping and 6 inspecting. In the step 1, the
bogie is placed on a maintenance platform, the threaded holes in the
bogie are transversely arranged, and whether each threaded hole is damaged or not is detected; in the step 2, a universal radial
drill is used for
broaching the damaged threaded holes; in the step 3, the damaged threaded holes are subjected to plugging
welding through a special
welding gun, the center line of a protective sleeve of the special
welding gun is kept parallel to the center line of each expansion hole in the plugging
welding process, and a welding bead is covered with protective gas; in the step 4, a corresponding drilling positioning tool is selected and installed according to the positions of the damaged threaded holes, and the universal radial
drill is used for drilling the bottom holes in hole blocking parts; and in the step 5, a universal tapping
machine installed on a trolley is used for tapping the bottom holes. According to the method, the problems that existing railway
carriage bogie threaded hole repairing is low in efficiency, low in precision, high in reworking frequency and low in one-time repairing success rate are solved.