Gear broaching alignment tool

The utility model belongs to the field of machining, and relates to a broaching alignment tool which comprises a positioning seat arranged on a broaching machine working table top and a positioning sliding block used in cooperation with the positioning seat, a through hole is formed in the middle of the positioning seat, and a through square hole is formed in the side wall of the middle of the positioning seat. A sinking groove is formed in the end face of the positioning base, and a workpiece is arranged in the sinking groove. The positioning sliding block is arranged in the square hole, and a U-shaped groove matched with the broach for positioning is formed in the front end of the positioning sliding block. The special auxiliary tool is adopted, gear broaching machining can be adopted, high-cost and low-efficiency machining procedures such as gear shaping and slow wire feeding are avoided, the batch difference of the tooth part machining size is guaranteed, the consistency of the assembly size is guaranteed