山东大学自学考试毕业设计(本科) 1 摘 要 数控机床即数字程序控制机床，是一种自动化机床，数控技术是数控机床研究的核心，是制造业实现自动化、网络化、柔性化、集成化的基础。随着制造技术的发展，现代数控机床借助现代设计技术、工序集约化和新的功能部件使机床的加工范围、动态性能、加工精度和可靠性有了极大的提高。 本设计是对 XA5032 普通立式铣床进行数控化改造。为了实现把 XA5032 普通立式铣床改造成经济型数控铣床，Z进给系统进行数控改造，并增加了 CNC 装置和伺服系统。对主传动系统，我选用 FANUC 20M DC 电动机通过带传动驱动主轴。对进给系统，我把原先的滑动丝杠换成滚珠丝杠，以提高精度和效率。通过单片机的设计，构成控制系统。 关键词：数控改造，滚珠丝杠，伺服系统 山东大学自学考试毕业设计(本科) 2 ABSTRACT CNC machine tools that the digital process control machine tools, is an automated machine tools, CNC numerical control machine tool technology is the core of the study, manufacturing automation, networking, flexible, integrated basis. With the development of manufacturing technology, modern CNC machine tools with modern design techniques, process intensification and new features to make machine tools, machining range, dynamic performance, machining accuracy and reliability has improved greatly. This design is XA5032 ordinary vertical milling machine NC transformation. In order to achieve the XA5032 vertical milling machine into the general economy CNC milling machine, I am against this milling the main drive Z to the feed system NC transformation, and to increase the CNC servo devices and systems. The main drive system, I choose FANUC DC motor drive through the belt drive spindle. The feed system, I replaced the original sliding screw, to improve accuracy and efficiency, and the original manual control, into the motor control. Converter to achieve through the main transmission and feed the CVT. SCM through t...
