毕业设计（论文）-汽车变速箱上盖工艺工装设计（全套图纸）.doc

摘 要 汽车变速箱上盖是汽车变速箱的重要组成部分。与变速箱箱体装配，为变速箱内部的齿轮、轴工作元件提供一个稳定安全的工作环境防止内部零件在暴露环境下工作上盖上还设计了检查，是为了便于观查内部元件的工作情况。上盖工艺工装设计主要内容有：上盖的工艺规程制定、典型加工工序分析、专用夹具设计、专用刀具设计、专用量具设计。 通过这些我对变速箱上盖零件制造活动有一个总体的，全貌的了解与把握，能够掌握金属切削过程的基本规律，掌握机械加工的基本知识，能选择加工方法与机床，刀具，夹具及加工参数，具备制定工艺规程的能力和掌握机械加工精度和表面质量的基础，初步具备分析解决现场工艺问题的能力。 关键词：工艺；工装；夹具；刀具 ABSTRACT Motor vehicle gearbox shelters is an important component of the gearbox. Box it and gearbox assembly, the internal gear for the transmission, axle components, and other work.It provide a stable and secure working environment to prevent exposure of internal components in the working environment. Also stamped on the design of the inspection windows, in order to facilitate the investigation of the internal components of the work.  The design specification is in the process of writing graduate design completed, the gearbox cover processing technology, tooling design of the note, analysis and feasibility studies. Elements include: the superstructure of developing a point of order, the typical processing of special fixture design, special-purpose tool designed for measuring tool design.  I passed these on the gearbox cover parts manufacturing activities have an overall, the understanding and grasp the full picture, metal-cutting process to be able to master the basic law, grasp the basic knowledge of mechanical processing, and processing methods can choose machine tools, cutting tools, fixtures and processing Parameters, with the development of protocols and the ability to master precision machining and surface quality of the foundation, a preliminary analysis of the scene to solve problems. Key words: Technology; Tooling; Fixture; Tool 目 录 绪 论 1 1 机械加工工艺规程的制定 2 1.1 零件的工艺性分析 2 1.1.1 零件的功用 2 1.1.2 零件的结构特点与工艺性 2 1.1.3 主要加工表面及其技术要求 2 1.2 确定生产类型 2 1.3 零件毛坯选择 4 1.3.1 零件毛坯材料选择 4 1.3.2 变速箱上盖的毛坯 4 1.3.3 毛坯的制造方式 4 1.4 零件加工工艺规程的制定 5 1.4.1 选择加工方法和加工方案 5 1.4.2 定位基准的选择 5 1.4.3 热处理及检验的选择与安排 6 1.4.4 拟定工艺路线 6 1.4.5 选择各工序加工机床设备及工艺装备 8 1.4.6 确定各工序的工序尺寸、表