摇臂轴支座机加工工艺规程制定及专用机床夹具设计.doc

机械制造工艺学课程设计 摇臂轴支座机加工工艺规程制定及专用机床夹具设计 姓 名： 学 号： 指导教师： 院系（部所）： 专 业： 完成日期： 20年月日   Abstract Mechanical processing industry as a traditional and dynamic industry, made by leaps and bounds in recent years, the development of the new economy era, industry presents new development trend, resulting in the quality of other performance requirements have new changes.Now the structural changes in mechanical processing industry, to design the process equipment and has become a necessary condition for enterprise survival and development, to design the process equipment and will directly affect the quality of the processed products and performance. First introduces the function and process analysis of valve rocker arm shaft bearing, secondly determine blank size, then the process planning design, fixture design finally.Through the valve rocker arm shaft bearing, to carry on the processing technology and fixture design, valve rocker arm shaft bearing parts for casting, the advantages of small size, parts are the characteristics of simple structure, due to the surface easier than hole processing, so, when making procedure is used to machining surface, and then processing hole by the surface as a benchmark, the method of the special fixture fixture is used in each process, the organization design is simple, convenient and can meet the requirements.Through this design improves the analysis problem, problem-solving ability, able to more deeply understand the textbook knowledge, and could be applied to the actual work well, for future better for my job.Key words: rocker arm shaft bearings;Process analysis;Process planning design;Fixture design目 录 第1章 绪 论 1 1.1课题背景、目的及意义 1 1.1.1 课题背景 1 1.1.2 课题目的及意义 1 1.2 研究现状 2 1.3 设计的基本内容 3 第2章 零件的工艺分析及生产类型的确定 4 2.1零件的作用 4 2.2 零件的工艺分析 5 2.3确定零件的生产类型 5 第3章 选择毛坯种类，绘制毛坯图 7 3.1 选择毛坯 7 3.2确定毛坯尺寸及机械加工总余量 7 3.3 设计并绘制毛坯图 8 第4章 选择加工方法 10 4.1 定位基准的选择 10 4.2 零件的表面加工方法的选择 10 4.3 加工阶段的划分 1