毕业设计论文多工步组合机床的PLC控制系统设计.doc

多工步组合机床的PLC控制系统设计 摘 要 工业机床的控制在工业生产自动化控制中占有重要的位置。在机床行业中，多工步动作多机床由于其工步及，控制较为复杂。采用传统的继电器控制时，需要的继电器多，接线复杂，因此故障多，维修困难、费时费力。采用PLC控制，可是接线大为简化，不但安装十分方便，而且保证了可靠性，减少了维修量，提高了功效。制造业是一个国家或地区经济发展的重要支柱，其发展水平标志着该国家或地区的经实力、科技水平、生活水准和国防实力。而制造业的生产能力蛀牙取决于执照设备——机床的先进程度。多工步机床用于加工棉纺锭子锭脚的一种加工机床，某锭脚加工工艺比较复杂，零件加工前为实心毛坯件，整个机械加工由7个刀具分分别按照7个工步要求依次进行切削。7个工步依次为：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、绞锥孔的工步要求。 关键词：制造业，多工步机床，PLC控制，梯形图 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: Manufacturing,Multi-stage machine, PLC control,Iadder-iagram 目　录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc6736 前 言 PAGEREF _Toc