凸轮轴的加工工艺优化设计 - atlantis press.pdf

Advances in Computer Science Research (ACSR), volume 61 7th International Conference on Education, Management, Computer and Society (EMCS 2017) Optimal Design of Camshaft’s Processing Technology Dongfang Hu1 and Jianwei Guo2 1School of Mechanical and Electrical Engineering; 1Henan University of Science and Technology, Luoyang, Henan 471003 Abstract. In order to achieve optimization of camshaft NC turning method, this paper has analyzed processing method of camshaft in traditional processing technology and proposed Project of merging turning process and shortening processing chain of camshaft. What’s more, it has also analyzed process scheme, tool angle selection and tool path mode of turning. At the same time, it has carried out numerical analysis on cutting parameter choice by optimal tool of Matlab software. It has operated machining of camshaft on reformed CNC lathe and verified cutting process optimization effectiveness of camshaft NC cutting. Keywords: Camshaft; NC turning; Processing chain; Cutting parameter; Machining 凸轮轴的加工工艺优化设计 1 1 胡东方 ，郭建伟 (1 河南科技大学机电工程学院，河南 洛阳 471003) 摘要：为实现凸轮轴数控车削方法的优化，分析了凸轮轴在传统加工工艺的加工方法，提出了合并车削工艺，缩短凸轮 轴加工工艺链的方案，并对车削的工艺方案、刀具角度选择、走刀方式等进行了分析，同时用 Matlab 软件的优化工具对切 削用量的选择进行了数值分析。通过在改造后的数控车床上进行了凸轮轴的切削加工，验证了凸轮轴数控切削工艺优化的有 效性。 关键词：凸轮轴；数控车削；工艺链；切削用量；切削加工 中图分类号：TH 132.47 文献标志码： A 引言 凸轮轴作为发动机配气机构的控制部件，其加工精度对燃油效率起决定性作用，凸轮型面质量的高低 [1] 直接影响着动力的发挥 。近年来随着发动机性能的提升，作为关键传动部件之一的凸轮轴也有了较大的 改进，其加工方式也随着计算机技术的发展而高速发展。2010 年南车戚墅堰机车有限公司的夏焕金、陆忠 民开展了凸轮轴型面车铣加工工艺的类似研究。发现无论是轴向车铣还是正交车铣，其加工精度和效率都 [2] 较传统的仿形靠模车削有较大的提高 。2012 年华中科技大学的郑孟昆等人在进行高精度凸轮轴磨床砂轮