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如图1所示,我厂某机自动倾斜仪上的球铰和球铰保持架,球面直径Φ254毫米,球面精度0.02毫米,球面光洁度▽9,要求球铰和球铰保持架的贴合面积不少于90％,材料分别是LC4CS和铜合金。工厂原拟订购一台精密的球加工机床来加工球铰和球铰保持架。后来,因考虑到减少投资和保证及时投入使用,决定用旧车床进行改装,以满足生产的需要。作为改装的第一步,是先将C630车床原有刀架改成一个回转刀架来进行球面的车削加工。
Shown in Figure 1, I plant automatic tilting meter on a ball hinge and ball hinge cage, spherical diameter Φ254 mm, spherical accuracy of 0.02 mm, spherical finish ▽ 9, the ball hinges and ball hinge cage fit area Not less than 90%, the material is LC4CS and copper alloy. The factory originally intended to order a precision ball machining machine to process ball joints and ball hinge cages. Later, taking into account the reduction of investment and guarantee timely put into use, decided to use the old lathe to be modified to meet production needs. As a modification of the first step, is the first C630 lathe turning the original turret into a rotary turret for spherical turning.