文档介绍：毕业设计(论文) 题目PLC 设计专业电气自动化技术专业班级电气自动化一班学生姓名高山指导教师车牛成绩2009 年05月14日巴音郭楞职业技术学院(论文) Ⅰ摘要随着科学的发展,机床已经从过去的手动机床发展成自动机床,现在数控机床应用非常广泛。数控立式车床是主要的数控产品,国内外需求量也非常大。其高精度的关键部分就体现在主轴的控制上。本设计是用德国 SIEMENS 公司的可编程控制器(PLC )S7-200 ,作为主控制器;德国 SIEMENS 公司的 6RA7075 直流调速器、Z4 直流电机组成的直流调速装置,采用直流调速实现高效、准确的机床主轴控制,并给出了电气原理图以及操作说明。本设计控制简单,实现功能强大,调速范围宽, 力矩大,过载能力强。可以应用于重型立式车床,提高重型立车主轴的控制精度, 进而保证其加工精度。关键词: 直流调速装置;可编程控制器巴音郭楞职业技术学院(论文) Ⅱ Abstract With the development of science, machine tools, manual machine tools have been developed from the past into the automatic machine tools, CNC machine tools are now widely used. CNC vertical C products are the major domestic and foreign demand is also very large. A key part of its precision is reflected in the control of the design is the pany SIEMENS PLC S7-200, as the main controller; pany SIEMENS 6RA7075 DC converter, Z4 DC prising DC converter, DC speed control for efficient and accurate machine tools of various spindle control, and gives the electrical diagrams and instructions. The design of simple control, to achieve powerful, wide speed range, torque, strong overload capacity. Can be applied to heavy-duty vertical lathes, heavy duty vertical lathe spindle to improve the control precision, and thus guarantee its accuracy. Keywords : CNC Vertical Lathe; DC converter; P rogrammable C ontroller 巴音郭楞职业技术学院(论文) 13 目录摘要............................................................................................................................................................ Ⅰ Abstract ....................................................................................................................................................... Ⅱ第一章绪论.................................................................................................................................................. 1 1课题背景............................................................................................................................................. 1 2数控立车主轴控制装置的发展现状.....