本文在回顾了通用分度回转工作台的发展史的基础上,重点介绍了按部颁标准JB2520-78设计的新系列回转工作台的系列参数,型号和主要参数以及结构和工作原理。新系列回转工作台与旧工作台比较,具有分度精度高,刚性较好,分度节拍时间短,结构简单,使用维修和配置组合机床方便等优点。图3幅,表2个。馆藏号: On the basis of reviewing the development history of common index rotary table, this paper mainly introduces the series parameters, models and main parameters as well as the structure and working principle of the new series rotary table designed according to ministry standard JB2520-78. Compared with the old workbench, the new rotary table has the advantages of high indexing precision, better rigidity, short takt time, simple structure, easy maintenance and configuration and combination of machine tools. Figure 3, Table 2. Collection number: