机械设计论文CA6140车床拨叉831007零件的机械加工工艺规则及专用夹具设计汇总.docx

摘 要本文介绍了拔叉的加工工艺设计过程及其专用夹具设计过程。通过本设计进一步了解了机械加工工艺设计过程的一般方法和步骤。联系生产现场实际条件进行工艺方案的比较选择适当方案；掌握根据生产的要求设计专用机床夹具的方法；以及根据商业利益进行工艺方案的比较与技术经济分析。本文内容包括：机械加工工艺的组成，工艺过程的作用，工艺规程的作用，工艺规程的设计原则，生产纲领的计算和生产类型的确定，毛坯的制造形式，制造工艺中基准的选择，零件的尺寸、形状误差和位置误差的分析，机械加工工艺路线的制定，各个工序的加工余量、工序尺寸、尺寸公差的确定及某些刀具的几何参数的选择和常见的金属切削机床的选用，机械加工各工序的切削深度、进给量、切削速度的确定，机械加工工时的计算，专用夹具设计的基本要求，专用夹具设计的依据、夹具装置的选择、夹紧力的估算、定位误差的分析、夹具的操作说明。本文介绍的各个工序都是从保证使用功能要求、提高劳动生产率，保证加工质量、降低劳动强度，注意劳动保护和环境保护，提高可靠性出发进行各工序的工艺和夹具的比较和制定。为了更好的了解各国先进的工艺技术文本还选择了两篇相关英文文献进行了可供读者参考。关键词：机械加工；工艺；工序；夹具；机床AbstractIn this paper, the fork off the design process and its dedicated fixture design process. Through the design of a better understanding of the engine machining process of the general process design methods and steps. Contact production at the scene of the actual conditions of the program compared select the appropriate programs; master in accordance with the requirements of the production design for the machine tool fixture methods and in accordance with commercial interests of the program compared with the technical and economic analysis. This article includes: the composition of mechanical processing technology, the role of process, the role of a point of order, the order of the design principles, the calculation of the Program of production and production types of identification, the rough form of manufacturing, manufacturing process in the choice of benchmarks, spare parts The size, shape and location of error of error, mechanical processing line of development, the various processes a gong , process size, Tolerance and the determination of certain tools and geometric parameters of common metal-cutting machine tools of choice , the basis for fixture design, the choice of fixture installation, the clamping force estimates, positioning error The analysis, fixture instructions. This paper describes the various processes are guaranteed from the use of functional requirements, raising labor productivity, and ensure processing quality, reduce labor inte