摘  要

全面阐述了数控车床的结构原理，设计特点，确定机床的传动方案、总体布置和机械部分的详细结构设计，设计的各部分间能有机结合，相互协调，共同完成整个机床的机械部分的大部分图样。详细介绍了数控车床的结构设计及校核，并进行了分析。另外汇总了有关技术参数。
本论文首先介绍了我国数控机床发展的过程与现状 ,并分析了其存在的问题 ;对数控机床的发展趋势进行了探讨；并对数控车床进给箱和床身部件进行了设计与计算。
本次所研究的对象是CJK6150车床，其主参数为500mm，主参数表示机床的规格大小，是机床的最主要参数，反映机床的加工能力，影响机床的其它参数和结构大小，所以通常以最大加工尺寸或机床工作台尺寸作为主参数。由于整个车床的结构相对较为复杂，所以只选了其中的进给箱部分进行分析和研究，并充分了解了传动原理和传动路线，能够初步理解机床的工作原理，对之前机械的各科专业知识又进行了一次较为全面的复习，基本达到了毕业设计的目的对自己四年来的一个知识的总结。
 
关键词：车床，数控，进给箱，床身部件

Abstract

Expounds the structure principle, CNC lathe design characteristics, determine the transmission scheme, the overall design of machine tools with the layout of the structure and the mechanical parts of the design, the parts can be organically combined, mutual coordination, jointly completed most of mechanical parts of the whole machine tool. This paper introduces in detail the structure design and verification of NC lathe, and analyzed. In addition a summary of the relevant technical parameters.
This paper introduces the process and current situation of the development of CNC machine tools in China, and analyzes its existing problems; the development trend of NC machine tool was discussed; and the feed box of CNC lathes and lathe parts of the design and calculation.
The research object of this is the CJK6150 lathe, the main parameters for the 500mm, said the main parameters of machine size, are the main parameters of the machine, the machine processing capacity, affecting the other parameters and structural size of machine tools, so often in the max size or machine working table size as main parameters. Because the structure of the lathe is relatively complex, so only choose the feed box part of analysis and research, and to fully understand the transmission principle and transmission line, can be a preliminary understanding of the working principle of the machine, before mechanical professional knowledge in various subjects and conducted a comprehensive review, basically reached the graduation design objective to his four years, a summary of knowledge.
 
Key Words:  Lathe, CNC, Feed box, Body parts