C6240中心架下体工艺及工装的设计-2套夹具【全套图纸】.doc

需全套CAD图纸 联系QQ 648328618各专业都有 目录 全套图纸，加648328618 中文摘要 2 英文摘要 3 第一章 序论 4 第二章 零件加工工艺设计 5 2.1 零件的分析 5 1 零件的作用 5 2 零件的工艺分析 5 2.2确定毛坯，画毛坯-零件图 5 1 毛坯的设计 5 2.3 工艺规程设计 8 1 基准选择 8 2制定工艺路线 8 3选择加工设备及刀、夹、量具 10 4加工工序设计 10 第三章 夹具设计 23 1 确定设计方案安装于发动机与变速箱之间,外接曲轴箱、起动机、油底壳,内置总成,起到连接机体、防护和载体的作用。 关键词 :工装设计 粗、精基准 定位键 工艺装备 第一章 序 论机械设计制造及其夹具设计是我们融会贯通年所学的知识，将理论与实践相结合，对专业知识的综合运用训练，为我们即将走向自己的工作岗位打下良好的基础。 机械加工工艺是规定产品或零件机械加工工艺过程和操作方法，是指导生产的重要的技术性文件。它直接关系到产品的质量、生产率及其加工产品的经济效益，生产规模的大小、工艺水平的高低以及解决各种工艺问题的方法和手段都要机械加工工艺来体现，因此工艺规程的编制的好坏是生产该产品的质量的重要保证的重要依据。在编制工艺时须保证其合理性、科学性、完善性。 English Abstract The graduation project is the subject of flywheel shell, Shell installed on the engine flywheel and transmission between the external Crankcase, starter, oil pan, a built-assembly, to connect the body play a protective role and the carrier. Flywheel shell design the main task is to design equipment, including spare parts drawn map, blank map, process design and process design of fixture. Parts of this article on the role and process analysis, to identify the parts of the material selected and the main processing and secondary processing of the surface of the surface.Through access to relevant information to determine the allowance rough, rough allowance for the selected mapping laid the foundation.  The process is designed to focus on process design and fixture design, design for them to take full account of its technology, feasibility and economy. Process design process of our rough inspection, precise choice of the baseline option, the machining process of the development and selection of line equipment and technology equipment, machine tool, so we are familiar with the use of a variety of machine tools and tool selection, integration of the knowledge together. Fixture design and intensified focus on aspects of positioning, this paper analyzed and compared from two angles, the design of a fixture and a milling jig boring. Folder on the two sets of .The design of a different emphasis on m