本文介绍日本全自动内圆磨床上一种先进的压力转子式夹持结构,与一致滚轮偏斜结构及利用磁力、二支撑块一垫板结物的夹持方法比较,具有加工精度、生产效率高、调整方便等特点,适用于微型轴承制造中的高速磨削、小直径二件的内圆磨削。 In this paper, an advanced pressure rotor-type holding structure on Japan’s fully automatic internal grinding machine is introduced. Compared with the uniform roller deflection structure and the holding method using magnetic force and two support plates and a pad, it has the advantages of high machining precision and high production efficiency , Easy to adjust and so on, suitable for high-speed grinding in the manufacture of miniature bearings, small diameter two pieces of the internal grinding.