A hardware implementation scheme for the embedded-based network numerical control is proposed, and the software architectures of ARM and DSP modules of the central NC unit are introduced.
提出嵌入式新型网络数控系统中央数控单元硬件实现方案，搭建起中央数控单元先进精简指令集处理器和数字信号处理器的软件架构。
Based on this principle, a rapid servo nc unit is designed for B2116 heavy duty gantry type planing - milling -grinding machine. This paper introduces its principle and main technical problems.
本文介绍了用于B2116大型龙门刨铣磨床的快速随动数控单元，阐述了其工作原理及主要技术问题。
The whole sets nc machine tools of lower prices generally choose the stepping driving unit and the price higher machine tool selection servo drive unit.
整台数控机床价格较低的一般选择步进驱动单元，而价格较高的机床选择伺服驱动单元。
The system can simulate the executive process of nc programme files, and realize the simulation of speed and acceleration curve, and process time and distance with the unit of controlling period.
该仿真系统不仅可以用于仿真NC程序文件的执行过程，而且实现了以控制周期为单位，对速度、加速度曲线以及加工时间、加工距离的仿真。
The control unit interface of nc machine tool is an important part for man-machine conversation whose design quality directly effects the study and working efficiency of users.
数控机床控制单元界面是人机交互的主要部位，其设计质量直接影响用户的学习和使用效率。
Precision ball screw unit is the key part of NC machine, and its manufacturing level determines the precision level of NC machine to great extent.
精密滚珠丝杠副是数控机床的关键功能部件，其制造水平的高低在很大程度上决定了数控机床的精度高低。
Ball screw unit is the key part of NC machines, and its adoption is an effective measure of improving sensitivity, positioning accuracy and prevention crawl.
滚珠丝杠副是数控机床进给系统的核心部件，采用它是提高进给系统灵敏度、定位精度和防止爬行的有效措施。
The performance requirement, composition of spindle unit and the rigidity calculation of spindle bearing and unit for CNC30 nc lathe are discussed in this paper.
介绍CNC30数控车床主轴组件的性能要求和组成，以及主轴轴承、主轴组件的刚度计算。
The precision and performance index of ball screw unit determine the positioning accuracy and the resetting accuracy of nc machines, especially its lead error.
它的精度和各项性能直接影响数控机床的定位精度和重复定位精度，特别是滚珠丝杠的导程误差对机床定位精度的影响最为明显。
The egg yolk color is improved by replacing NC with QPM equally(P<0.1), but Haugh unit score and eggshell strength are not improved(P>0.1).
与普通玉米相比，在日粮中使用优质蛋白玉米可提高鸡蛋的蛋黄颜色评分（P<0.1），不会降低鸡蛋的哈夫单位和蛋壳强度（P>0.1）。
An optimization design method for NC machine tool structures based on unit structures was proposed.
提出了一种基于元结构的数控机床结构优化设计方法。
An optimization design method for NC machine tool structures based on unit structures was proposed.
提出了一种基于元结构的数控机床结构优化设计方法。
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