我厂承接4件造纸行业用的真空伏辊中的主要关键零件辊筒体的加工任务。该件材料为ZQS_n10—2,尺寸及技术要求见图1。由于辊筒体长3050,内径φ590,系大直径超长筒体件,采用悬臂式长刀杆车削内孔的方法无法进行加工。我们经过技术攻关。设计制造了专用夹具,在5米C650车床上成功地加工出了符合图纸技术要求的辊筒体。现介绍如下: I plant to undertake four pieces of the vacuum industry in the paper industry in the main components of roller roller body processing tasks. The material for the ZQS_n10-2, size and technical requirements shown in Figure 1. As the roller body length 3050, diameter φ590, Department of large-diameter long barrel body, the use of long cantilever long hole turning method can not be processed. We have technical research. Design and manufacture of special fixtures, in the 5 m C650 lathe successfully processed in line with the technical requirements of the drawings roller body. Now introduced as follows: