摘  要

阐述了回转顶尖的结构原理，设计特点，确定设计方案，详细的结构布局和设计机械零件的机床的总体设计，零件可以有机结合，相互协调，共同完成的整个尾座的机械部件。本文详细介绍了回转顶尖的结构设计和验证，并分析了。此外，有关的技术参数，总结。
本文介绍的过程和数控机床在中国的发展现状，分析了其存在的问题；数控机床的发展趋势进行了探讨；并对车床的设计计算回转顶尖。回转顶尖，并充分了解和传输线传输的原理，可以将本机的工作原理有一个初步的了解，在机械的各学科的专业知识和进行了全面的综述，基本达到了毕业设计目的四年，知识的一个总结。
 
关键词：车床，数控，回转顶尖，尾座设计

Abstract

Describes the structure and principle of rotary center, design features, design scheme, structure design and layout design of mechanical parts with the machine parts, can be combined, the coordination, the entire mechanical parts together to complete. This paper introduces the structure and design of rotary top verification, and analysis. In addition, relevant technical parameters, summary.
In the current development process is introduced in this paper Chinese and CNC machine tools, analyzes the existing problems; the development trend of CNC machine tool are discussed; and the design of the lathe calculation of rotary top. Rotary top, and fully understand the principle and transmission line transmission, the working principle of this machine can have a preliminary understanding, in various disciplines of mechanical professional knowledge and a comprehensive overview, basically achieve the purpose of graduation design for four years, a summary of the knowledge.
 
Keywords: lathe, CNC, revolving top, tailstock design