At present, for the processing of splines in the involute end of long-axis parts, the distance between the end face of the main shaft of the gear insert and the end face of the table is limited, and most of them are processed by electrolysis and milling. We carried out a technical breakthrough in the machining of the workpiece shown in Figure 1. Using the method of heightening the Y54 gear shaping machine, we successfully completed the processing of the splines in the involute of the two ends of the shaft, thus groping a machine on the gear shaping machine. Long axis end