英语翻译NC Machine Tool At present,the NC machining centre appea

英语翻译
NC Machine Tool
At present,the NC machining centre appears to be the most capable and versatile automatic machine tool that can perform drilling,milling boring reaming and tapping operations.The general objective behind the development of cost producion by reducing the producition time.This in turn is directed towards the avoidance of non-productive time which is mainly due to the number of setups,setup time,workpiece handling time,tool change time and lead time.The performance of a variety of machining operations on the same machining centre eliminates the non-productive waiting time that occurs if such operations are performed on different machines.Provision of automatic tool changing indexing of tables and several pallets add to the productivity of the machining centres
The basic information that has to be input into the system consists of the part geometry and cutting process parameters followed by the cutting tools used.Thispart program is then entered into the controller of the machine ,which in turn runs the machine tool to make the part.
The command received from the operator is communicated to the corresponding axis driving system for execution.The axis motion control system operates in a feed back loop with suitable transducers such as linear scales and/or rotary encoders to get the appropriate position or velcity feed back.Most of these systems have a very high response with good resolution of the order of 1 micron or less.

数控机床
目前,数控加工中心是性能最高并且自动化功能最多的加工设备,可进行冲钻,碾磨,钻孔,铰孔,攻丝操作.通过减少加工生产时间来降低开发生产成本是根本目标.同时,主要通过减少更换设备、操作工件、换刀时间和交货时间的非生产性时间来减少生产成本.在相同的加工中心对多种设备进行操作可以减少由于在不同机器上进行操作所浪费的非生产性时间.自动工具变化索引表和若干托盘的使用增加了了数控中心的生产力.
先把基本信息其包括部件几何图案和切割程序参数输入进系统,之后使用切割工具.此程序输入进机器的控制中心,之后使用工具对部件进行加工.
相关枢纽配合上操作者的指令驱动系统执行程序.轴运动控制系统操作利用合适的传感器如线性称或轮流编码器得到反馈信息以获得合适的位置或速度反馈.这些系统大多数敏感性都非常高,可以感知到1微米或更小.
水平有限,就到这个程度了.你是搞数控机床行业的?