我厂产品中有一内六方接头，如图 1所示，该件的内六方对边尺寸为 190mm。原定工艺在插床上插削，加工一件需 7.5小时，因需求量大，我们改装了一台 C630车床如图 2所示，采用车铣形式加工，仅用 0.35小时即可完成一件，其操作简单，装夹方便，省时省力，能提高工效 20余倍。[1 I plant a hexagonal connector products, as shown in Figure 1, the pieces of the six sides of the size of 190mm. The original process inserted in the slotted cut, processing a need 7.5 hours, due to large demand, we converted a C630 lathe shown in Figure 2, the use of car milling form processing, only 0.35 hours to complete one, Its operation is simple, easy to install, save time and effort, can improve work efficiency more than 20 times. [1