本文对多轴自动车床加工小型轴承内圈内孔的工艺方法进行了对比性试验和分析,实践了钻孔—镗孔—铰孔新工艺。从而提高了内孔的造型精度,减小了磨工留量,并应用双偏心原理设计了新型镗孔刀夹,这种刀夹调整尺寸准确、方法简单。附图4幅,表7个。 In this paper, the multi-axis automatic lathe processing small bearing inner ring of the hole in the process of a comparative test and analysis, the practice of drilling - boring - Reaming new technology. Thereby improving the precision of the inner hole shape and reducing the mill residue. A new type of boring tool holder has been designed based on the double eccentricity principle. The tool holder has the advantages of accurate size adjustment and simple method. Figure 4, Table 7.