关于数控车床

中文原文
关于数控车床(中文7700字,英文4700字)
    数控机床是数字控制机床（Computer numerical control machine tools）的简称，是一种装有程序控制系统的自动化机床。该控制系统能够逻辑地处理具有控制编码或其他符号指令规定的程序，并将其译码，用代码化的数字表示，通过信息载体输入数控装置。经运算处理由数控装置发出各种控制信号，控制机床的动作，按图纸要求的形状和尺寸，自动地将零件加工出来。
特点：数控机床的操作和监控全部在这个数控单元中完成，它是数控机床的大脑。与普通机床相比，数控机床有如下特点：
●对加工对象的适应性强，适应模具等产品单件生产的特点，为模具的制造提供了合适的加工方法；
●加工精度高，具有稳定的加工质量；
●可进行多坐标的联动，能加工形状复杂的零件；
●加工零件改变时，一般只需要更改数控程序，可节省生产准备时间；
●机床本身的精度高、刚性大，可选择有利的加工用量，生产率高（一般为普通机床的3~5倍）；
●机床自动化程度高，可以减轻劳动强度；
●有利于生产管理的现代化。数控机床使用数字信息与标准代码处理、传递信息，使用了计算机控制方法，为计算机辅助设计、制造及管理一体化奠定了基础；
●对操作人员的素质要求较高，对维修人员的技术要求更高；
● 可靠性高。

英文原文
On the NC lathe
CNC machine tool numerical control machine tools (Computer numerical control machine tools) abbreviation, is provided with a program control system of automatic machine tools. The logic control system can deal with the control code or other symbolic instruction specified program, and decoding the digital code, said information carrier, through the numerical control device input. After processing by CNC device control signals, control the machine movements, by drawing the shape and size requirements, will be automatically processed by the parts.
Features: CNC machine tool operation and monitoring of all completed in the numerical control unit, it is the brain of CNC machine tools. Compared with the general machine tools, CNC machine tools has the following characteristics:
● the processing object adaptability, adapt to the characteristics of mold products such as a single production, provide the appropriate processing method for die and mould manufacturing;
● high machining accuracy, processing with stable quality;
● can coordinate linkage, processing complex shape parts;
● machining parts change, only need to change the program, can save the preparation time of production;
● the machine itself high precision, rigidity, can choose the amount of processing good, high productivity (3~5 times as common machine);
The machine is a high degree of automation, reducing labor intensity;
● conducive to the production management modernization. The use of CNC machine tools and the standard code of digital information processing, information transmission, the use of computer control method, has laid the foundation for the integration of computer aided design, manufacturing and management;
● on the operators of higher quality, higher demands for the repair of the technical staff;
● high reliability.