多工步组合机床的PLC控制系统的设计.doc

摘要 PAGE XV 多工步组合机床的PLC控制系统设计 摘 要 本次课题设计的功能是实现对棉纺锭子锭脚加工过程的控制，加工棉纺锭子锭脚的是多工步机床，它对零件加工前的实习坯件利用七把刀具分为七步：钻孔，车平面钻深孔，车外圆及钻孔，粗绞双节孔及倒角，精绞双节孔和绞锥角。利用慢速电动机和快速电动机实现快慢速的进退，电子气阀实现快慢速电动机的转换。还将可编程控制器应用于多工步组合机床的电气控制系统设计，并对设计思想作了详细介绍。通过对多工步组合机床的控制系统的分析，设计好系统的主电路和控制电路， PLC的外部接线图，以及编写好控制程序的流程图和梯形图等，随着机床电气控制技术的不断发展和可编程控制器的广泛应用，可编程序控制技术以其灵活性好，可靠性高，通用性强，逐渐取代了传统继电器控制方式，PLC对组合机床的应用，无疑是当今工业控制的主要发展方向。 关键词：多工步组合机床，PLC，步进顺序控制 Design of Combination Machine Tools Control System of PLC ABSTRACT The control of industrial automation control in industrial production occupies an important position. The machine tool industry , multi-stage machine and work because of its action,control is more complicated. Using traditional relay control, need complex, the relay, fault than wiring, maintenance difficulties, Feigong time-consuming. PLC control, but not only greatly simplified wiring, installation is very convenient, and ensure the reliability, reduce the maintenance and increase the efficiency.Manufacturing is one country or region development of the important pillars, its development level mark the country or region`s economic strength and technology level, the living standards and national defence capabilities. While manufacturing production capacity depends on the advanced manufacturing equipment, machine tool. Many workers step for processing cotton spinning ingots machine a processing machine a feet, a spindle feet processing technology is more complex, parts processing for solid blank piece before, the whole mechanical processing by seven tool points respectively according to seven workers were cutting step requirements. Seven work step is as follows: the drilling, car plane, drill deep holes, outside, round and drilling, coarse twisted double festival hole and chamfering and fine twisted double festival, twisted tapered bore holes work step requirements. KEY WORDS: Multi-step combination machine，PLC，Stepping sequence control 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc325961708 前 言 PAGEREF