图1是XF716液压仿型铣床上的一个油缸。它的内孔已加工,要在C630车床上加工外圆和外螺纹。过去采用按内孔分组配车工艺堵,在两端反复车基准圆和端面的方法加工,费工费时,又不能保证质量。为了保证产品质量,我们设计了一套专用工装。图2是工装的专用三爪卡盘。图3是王装的专用铁三爪。在专用三爪卡盘的三个爪上还用螺钉固定了一个可供车削的扇形小爪。 Figure 1 is a cylinder on the XF716 hydraulic profiling milling machine. Its inner hole has been machined, to be machined on the C630 lathe and external thread. In the past by hole within the group with the car technology block, at both ends of the car repeatedly around the base circle and end of the method of processing, time-consuming work, they can not guarantee the quality. In order to ensure product quality, we designed a set of special tooling. Figure 2 is a special tooling jaw chuck. Figure 3 is a king of special iron three claws. On the three claws of the special three-jaw chuck, a small fan-shaped claw is also fastened with screws.