毕业论文--468曲轴工艺规程及钻模夹具的设计.doc

本科学生毕业设计 468 曲轴工艺规程及钻模夹具的设计系部名称:汽车工程系专业班级:车辆工程 B05-18 班学生姓名:张敏键指导教师:张德生职称:副教授黑龙江工程学院二○○九年六月 The Graduation Design for Bachelor's Degree The Design of Bored Fixture And Process for t he 468 Crankshafts Candidate : Zhang Minjian Specialty : Vehicle E ngineering Class : B05-18 Supervisor : Associate Professor .Zhang Desheng Heilongjiang Institute of Technology 2009-06 · Harbin 黑龙江工程学院本科生毕业设计 I 摘要本文介绍了曲轴加工过程中定位、装夹、加紧、钻模以及曲轴加工方面、夹具设计上的相关知识。综述了国内外目前微型车曲轴的制造技术及发展趋势。通过对曲轴的使用性能、工作条件、结构、技术要求的了解,对曲轴的加工工艺规程进行研究改进,提出了在加工过程中常出现的问题及改进的办法,使曲轴的精度和表面质量得到很大提高,降低了废品率,提高了劳动生产率。并绘制夹具的二维与三维图形。与在对国内外夹具的设计现状进行分析的基础上,针对中小企业广泛使用夹具常出现的情况,我们有必要对夹具进行设计,具有现代机床夹具设计的相关知识,这样可有效地提高夹具设计的速度和质量,从而提高企业效益。此外,本文顺应现代机械设计发展趋势,利用 P ro/ E绘出曲轴及重要工序夹具的三维图。关键词:曲轴;夹具; 设计;三维图; P ro/ E 黑龙江工程学院本科生毕业设计 II ABSTRACT This paper introduces the crankshaft machining process of location 、 clamping 、 intensify 、 jig and the relevant knowledge on crankshaft processing and the design of fixture. Reviewed the current micro-car crankshaft manufacturing technology and development trends. Through the use of performance, working conditions, structure and understanding of the technical requirements of the crankshaft processing improvements in the processing of those problems and improving the method, so that the crankshaft precision and surface quality can be improved greatly, reduced the reject rate, improved labor productivity. Furthermore, I am conversing the size of the chain. In considering the reasonableness of the crankshaft design, stress analysis for the crankshaft and the related calculation and verification. In the domestic and international fixture design for the analysis of the status quo, based on extensive use of the regular fixture. We need to design fixture, fixture with modern design knowledge, This will effectively increase the speed fixture design and quality, there by improving enterprise efficiency. In addition, the paper conform to the modern mechanical design development trends, using the P ro/ E to draw the 3