毕业论文：渐开线蜗杆磨削运动仿真研究.doc

题 目 渐开线蜗杆磨削运动仿真研究 所在学院 机械工程学院 专业班级 机械设计制造及其自动化机自095班  渐开线蜗杆磨削运动仿真研究 [摘要]：现代工业产品对蜗杆蜗轮副在承载能力、传动效率和传动精度等方面提出了更高的要求。为满足这些要求，一方面是采用机械性能更好的材料和必要的热处理，另一方面是提高加工精度，如采用磨削加工来提高蜗杆螺旋面的形状精度和降低表面粗糙度值。因此蜗杆磨削的设计和研究有着重要的实际意义。本文主要研究渐开线蜗杆的磨削仿真，探讨了蜗杆、砂轮零件的实体建模，砂轮磨削蜗杆的运动仿真等问题。论文首先在深入研究微分几何和空间啮合原理的基础上，选定一组符合国家标准的蜗杆参数在pro/e中建立蜗杆的实体模型。然后，系统的研究了渐开线蜗杆的磨削加工工艺，根据已知的蜗杆齿面形状和包络原理，求得了砂轮廓型，并进一步在pro/e建立了砂轮的实体模型。 [关键词]：啮合分析 法向直廓蜗杆 磨削 加工仿真 实体建模 Study on the grinding motion simulation of the involute worm Hu Kaihua （Grade9,Class05,Mchanical Design Manufacturing and Automation，Mechanical Engineering institute.，Shaan xi University of Technology，Han zhong 723003，Shaan xi） tutor: Hou hongling Abstract：Nowadays，worm gearing which has higher performance in bearing capacity,transmission efficiency and transmission precision is needed in modem industry products．In order to meet this demand,two measures can be taken to deal with it；one is to adopt new material with higher strength and to take heat treatment on surface，the other is to enhance the manufacture accuracy,such as to improve worm shape precision or to deduce its surface rough ness．So，worm grinding technology research and development has important and real meaning．In this dissertation，has been researched，and the way how to modeling the worm gearing and grinding wheel with high accuracy and how to simulate worm gearing grinding with smooth motion also been discussed．Firstly,surface equation of straight sided normal worm is built on the basis of differential geometry and spatial meshing theory and on the basis of selected a set of worm parameters meet the national standards in the pro/e worm entity model is set up. Then, the system of involute worm grinding process is studied, according to the known worm tooth surface shape and envelope principle, type sand contour are obtained, and further established the entity model of