摘要

数控车床是集机械、电气、液压、气动、微电子和信息等多项技术为一体的机电一体化产品。是机械制造设备中具有高精度、高效率、高自动化和高柔性化等优点的工作母机。数控机床的技术水平高低及其在金属切削加工机床产量和总拥有量的百分比是衡量一个国家国民经济发展和工业制造整体水平的重要标志之一。数控车床是数控机床的主要品种之一，它在数控机床中占有非常重要的位置，几十年来一直受到世界各国的普遍重视并得到了迅速的发展。

因此了解数控车床的结构与工作原理是操作、维修、改进数控车床的前提，也是设计一款数控车床的基本。基于此本文介绍了数控车床的主轴系统、伺服进给系统、刀架系统等的特点、设计要求及结构特点，对于系统部件也作了介绍。

关键词： 数控车床主轴系统伺服进给系统刀架系统

Abstract

Numerical-controlled Lathe is a electromechanical integration product,which is multinomial technology for one-piece. Numerical- -controlled Lathe is multituded by mechanism、 electric 、hydraulic、 pressure,pneumatic、 electrino、information and so on. It is main working machine and possesses high precision、 high efficiency、high automation and high flexibility in the mechanical manufacturing equipment.The technology capability of Numerical-controlled Lathe and percentage of machine output and in possession of amount is one of the important signal weighting the whole level of one state national economy extend and commercial manufacture Numerical-controlled Lathe is one of main variety of Numerical-controlled Machine,it take a important place in the Numerical-controlled Machine,and for decade years,it is given the prevalence regard from all the world and get the prompt develop.

Therefore study the structure and working principle is the premise of operate、maintain、improve Numerical-controlled Lathe, also it is the basic of designing Numerical-controlled Lathe.Introduced the characteristics, the design request and the structure characteristicses

of Principal axis system 、Servo system and Tools system of Numerical-controlled Lathe according to this text, also made a introduction for the system parts.

Keywords: NCLathe Principal axis system

Servo system Tools system