Clamping tool for spline shaft end machining

The utility model relates to a clamping tool for spline shaft end machining, and belongs to the technical field of long shaft clamps. The tool comprises a tool body, the tool body comprises a shell, aclamping sleeve, an expansion sleeve and a guide sleeve, the clamping sleeve is arranged in the shell, the guide sleeve and the expansion sleeve are arranged on the left side and the right side in the clamping sleeve respectively, and a pull rod oil cylinder arranged in the clamping sleeve is further arranged on the left side of the guide sleeve. The spline shaft machining device has the advantages that the clamping sleeve and the expansion sleeve are tightened at the same time, the clamping position and the machining position are shortest, it is guaranteed that vibration deformation is avoided during spline shaft machining, the machining precision is guaranteed, the rejection rate is reduced, the cost is saved, the guide sleeve can achieve rapid center positioning, the adjusting time after clamping each time is