摘  要

目前机床数控设计的市场在我国还有很大的发展空间，现在我国机床数控率不到3％。用普通机床加工出来的产品普遍存在质量差、品种少、档次低、成本高、供货期长，从而在国际、国内市场上缺乏竞争力，直接影响一个企业的产品、市场、效益，影响企业的生存和发展，所以必须大力提高机床的数控率。当前在我国国民经济的各行各业发挥着越来越重要的作用，数控机床已经成为企业技术设计的首先设备之一。我国的数控技术发展很快，呈现出高速度、高精度、高可靠性、多轴控制、工艺复合、集成化、智能化、网络化合环保化发展的态势。与国外数控技术的发展相比，我国数控技术的发展仍然存在着较大差距。
  通过该课题的研究，努力达到以下目的：
  1、加强数控机床结构设计和模块化训练；
  2、加强数控机床功能部件的选型与设计计算的训练；
  3、加强数控机床的整机设计中应该把握的主要问题的训练
  1）节省资金。 机床的数控设计同购置新机床相比一般可节省60%左右的费用，
关键词：铣床，数控，伺服电机，滚珠丝杠

Abstract

At present, the transformation of NC machine tools market in our country still has very large development space, now our country machine tool numerical control rate less than 3%. Use of ordinary lathe processing products of poor quality, less common varieties, low grade, high cost, long period of supply, which in international, home market lacks competition ability, affect a business directly product, market, benefit, affect the survival and development of enterprises, so we must enhance the rate of NC machine. At present in our country all trades and professions of national economy is playing an increasingly important role, CNC machine has become the first device of the technological transformation of enterprises. Numerical control technology of our country is developing very quickly, showing a high speed, high precision, high reliability, multi axis control, composite technology, integrated, intelligent, network combining environmental protection development. Compared with foreign development of numerical control technology, numerical control technology in China still has a large gap in the development of.
Through the research, efforts to achieve the following objectives:
1, strengthen structure design of the NC machine tool and the modular training;
2, strengthen the functional components of NC machine tool selection and design calculation of the training;
3, strengthen the NC machine tool in machine design should grasp the main problems in training
Key Words:  milling machine, Numerical control, Step-by-step, serve motor, Ball bearing guide screw nut
 目  录