Alignment tool mechanism for press fitting of gearbox gear

The invention discloses an alignment tool mechanism for press fitting of a gearbox gear. The alignment tool mechanism is characterized by comprising an alignment tool main body, wherein an alignment gear is arranged on one side of the alignment tool main body, and the alignment gear is arranged in the length direction of the alignment tool main body; at least one pin shaft is fixedly connected toone end of the alignment tool main body, and the pin shaft and the alignment gear are arranged in parallel; a mounting hole is coaxially formed in the alignment tool main body, and the end, away fromthe alignment gear, of the mounting hole extends to the exterior of the alignment tool main body to form a clamping groove; and at least one elastic fixing clamp is fixedly connected into the clampinggroove. The alignment tool gear same with an output shaft gear is arranged on an alignment tool, and the principle of gear engagement is utilized. Before press fitting, the gear alignment tool is ensured to be engaged with the