机械设计毕业论文节流调速回路设计及钻床动力滑台工作循环的微机控制.doc

摘 要 液压传动技术虽然较为年轻，但几十年在中国有了充足的发展，技术越来越成熟，其市场前景也让人惊叹。 本文主要研究设计节流调速回路设计及钻床动力滑台工作循环的微机控制。在参考大量资料之后主要研究了该组合机床系统的运动循环，并对该机床的液压系统方案的敲定作出了详细的论述分析；然后对机床系统的负载分析做了详细的计算和验算；再对该机床的液压缸、液压油箱以及各类液压元件及其辅助元件作了充分的计算、设计以及选取；本设计的主要特色在于所设计组合机床在液压传动系统的支持下能在工件被夹紧后同时在两面对工件进行钻孔，使机床的效率较传统同类机床有很大的提升，使之创造出更多的价值。 立式动力滑台所加工的孔，光洁度和尺寸精度要求较高，换向精度要求也较高。而第二次慢速工进是为了满足扩锥孔的进给量要求。由此可确定滑台动作顺序为：快进→Ⅰ工进→Ⅱ工进→快退至原位停止。 在我们所学的机床中，节流调速回路主要应用于钻孔专用组合机床上。钻孔专用组合机床一般用于加工垂直孔和水平孔。 二次节流调速回路应用在钻孔专用机床上，是用于控制机床的滑台的动作，从而达到钻孔时两次工进的目的。 关键词：液压传动；系统控制；液压回路 ABSTRACT Hydraulic transmission technology, while relatively young, but for several decades in China has plenty of development, technology matures, its market prospects are also amazing. This paper studies the design throttle speed circuit design and drilling cycle power sliding table work computer control. After a lot of information in reference to the main research tool of the motion of the system combined cycle, and the machines hydraulic system to finalize the program made a detail analysis; and then load on the machine tool system of a detailed calculation and checking; again The machine hydraulic cylinder, hydraulic tank and a variety of hydraulic components and auxiliary components were full of Jisuan, She Ji and selection; Ben design of Zhuyaotese Zuhe machine Zai Zai Yusuo hydraulic drive system designed for Zhichi be under the workpiece can be clamped in Meanwhile in the face of the workpiece after the drilling of two, so that the efficiency of the machine tool than the traditional kind have greatly improved, so create more value.  The processing power sliding table vertical holes, finish and dimensional accuracy are higher, and for the precision is high. The second slow work progress to meet the expanding cone of feed requirements. Slide action can be determined order: fast-forward → Ⅰ → Ⅱ workers into work quickly retreat into the in situ → stop. In our study of machine tools, the cutting speed control circuit is mainly used in drilling machine o