国家工程研究中心。
NC selection system is based mainly CNC machine modified to achieve the various precision, motor-driven power and user requirements.
选择数控系统时主要是根据数控改造后机床要达到的各种精度、驱动电机的功率和用户的要求。
Sixth, the transformation of NC modification of the main mechanical components
六、数控改造中主要机械部件改装探讨
A new CNC machine tools in the design to achieve: a high static and dynamic stiffness of movement of the friction coefficient between small, transmission without clearance; big power; easy operation and maintenance. CNC transformation should be possible to achieve the above requirements. NC devices that can not be connected together with the general machine tools to reach the requirements of the NC machine tool, should also be major components corresponding to the transformation of up to a certain design requirements can be anticipated adaptation.
一台新的数控机床，在设计上要达到：有高的静动态刚度；运动副之间的摩擦系数小，传动无间隙；功率大；便于操作和维修。机床数控改造时应尽量达到上述要求。不能认为将数控装置与普通机床连接在一起就达到了数控机床的要求，还应对主要部件进行相应的改造使其达到一定的设计要求，才能获得预期的改造目的。
6.1, sliding Guideway
6.1、滑动导轨副
On the NC lathe, in addition to a general guide lathes and precision of sexual orientation, but also a good Naimaca, wear characteristics, and reduce the frictional resistance to the death zone. At the same time there must be enough stiffness to reduce rail deformation on the impact of machining accuracy, a reasonable guide protection and lubrication.
对数控车床来说，导轨除应具有普通车床导向精度和工艺性外，还要有良好的耐摩擦、磨损特性，并减少因摩擦阻力而致死区。同时要有足够的刚度，以减少导轨变形对加工精度的影响，要有合理的导轨防护和润滑。
6.2, deputy Gear
6.2、齿轮副
General Machine concentrated in the main gear box and gearbox in the spindle. In order to ensure transmission accuracy, the use of CNC machine tool accuracy of gear higher grades than the general machine tools. In the structure must be able to achieve seamless transmission, thus transforming, machine main gear must meet the requirements of CNC machine tools, in order to ensure accuracy machining.
一般机床的齿轮主要集中在主轴箱和变速箱中。为了保证传动精度，数控机床上使用的齿轮精度等级都比普通机床高。在结构上要能达到无间隙传动，因而改造时，机床主要齿轮必须满足数控机床的要求，以保证机床加工精度。
6.3, and the ball screw sliding leadscrew
6.3、滑动丝杠与滚珠丝杠
Screw-
