《涡轮减速器箱体机械加工工艺规程及钻床夹具设计》由会员分享，可在线阅读，更多相关《涡轮减速器箱体机械加工工艺规程及钻床夹具设计（57页珍藏版）》请在金锄头文库上搜索。
1、摘要本次毕业设计的主要内容是机械加工工艺规程编制和工序专用夹具设 计。我能综合运用机械制造技术基础和其它课程的基本理论和方法，为了能 够完成涡轮减速器箱体机械加工工艺及钻床夹具的设计任务，综合运用所学 的知识，应用正确的设计方法，制订了涡轮减速器箱体的机械加工工艺规程 结合工艺设计内容，熟练应用工艺计算方法，对相关工艺内容进行了正确的 分析设计和计算，如工艺参数、切削力、切削功率、切削速度、定位误差、 夹紧力等。通过对涡轮减速器箱体的加工工艺路线的确定，该零件的加工以 底面作为基准是合理的，本加工工艺方案满足粗基准选择的基本要求及精基 准选择的四项原则。本夹具为钻床使用的专用夹具，该夹具的特点
2、是针对性 强、结构紧凑、操作简便、生产率高。在本次设计中，夹具的设计满足机床 夹具总体方案设计的基本要求，充分保证零件加工质量，具有较高的生产效 率和较低的制造成本以及具有良好的结构工艺性。关键词：机械加工；工艺规程；专用夹具；涡轮减速器箱体AbstractThe graduation design is the main content of the machining process planning preparation and special fixture design process. I can comprehensive use of mechanical manufactu
3、ring technology and other basic curriculum of basic theory and method, in order to be able to complete the turbine speed reducer machining technology and drilling machine fixture design task, the integrated use of knowledge, and apply the correct design method, and developed a turbine speed reducer
4、of the machining process planning. Combine craft design content, skilled in the application process calculation method, the relevant process the content analysis of the correct design and the computation, such as process parameters, cutting force and cutting power, cutting speed, positioning error,
5、clamping force, etc. Through the turbine speed reducer to the processing technology of the determination of the route, the parts processing to the underside as the benchmark is reasonable, the processing technology solutions to meet the basic requirements of basic selection coarse and fine basic sel
6、ection of the four principles. This fixture for drilling machine use special jig, this fixture is characteristic of the targeted, compact construction, simple operation, high productivity. In this design, the design of the machine tool fixtures meet fixture basic requirements of the overall design,
7、fully guarantee the quality of parts processing, has the high production efficiency and lower cost of manufacture and good structure technology .Key words: Machining; Process specification; Special fixture; Turbine gear unit housing最新资料推荐目录摘 要IAbstract II第 1章 绪论 11.1 涡轮减速器箱体综述 11.2 涡轮减速器箱体国内外发展概况 21
8、.2.1 涡轮减速器箱体机械加工工艺发展概况 21.2.2 涡轮减速器箱体夹具发展概况 3第 2 章 零件的机械加工工艺规程设计 52.1 涡轮减速器箱体的工艺分析 52.1.1 涡轮减速器箱体的作用 52.1.2 涡轮减速器箱体的工艺分析 52.2 选择毛坯 62.3 确定铸件机械加工余量、毛坯尺寸和公差 62.4 设计毛坯图 72.4.1 确定圆角半径 72.4.2 确定毛坯的热处理方式 72.5 机械加工工艺路线的制订 92.5.1 选择定位基准 92.5.2 制订工艺路线 102.5.3 加工工艺过程的分析 132.5.4 选择加工设备与工艺装备 132.5.5 确定工序尺寸 142.
9、5.6 确定切削用量及基本时间 15第 3 章 机床专用夹具的设计 353.1 确定设计任务、明确加工要求 353.2 定位方案的确定 353.3 夹紧机构的设计 353.4切削力和夹紧力的计算 353.5定位误差的分析与计算 363.5.1 定位元件尺寸及公差确定 373.5.2 定位误差计算 373.6夹具体的设计 373.7夹具与机床连接元件的选择 383.8夹具的使用说明 383.9夹具的结构特点 39结 论 40致 谢 41参考文献 42最新资料推荐CONTENTSAbstract错误!未定义书签。错误!未定义书签。Chapter 1 Introduction 11.1 Turbo
10、gearcase Review 11.2 Turbo reducer box domestic and international development overview 21.2.1 Turbine gear unit housing process for development overview 21.2.2 Turbine gear unit housing fixture Development Abroad 3Chapter 2 Part of the process planning 52.1 Turbo gear unit housing process analysis 5
11、2.1.1 Turbine gear unit housing role 52.1.2 Turbine gear unit housing process analysis 52.2 Select rough 62.3 Determine the roughcast allowances, blank dimensions and tolerances 62.4 Design rough Figure 72.4.1 Determine the fillet radius 72.4.2 To determine the heat treatment of blanks 82.5 Turbo ge
12、ar unit housing process analysis 92.5.1 Select locating datum 92.5.2 Develop a process route 102.5.3 Machining process analysis 132.5.4 Select the processing equipment and process equipment 132.5.5 To determine process size 142.5.6 To determine the cutting parameters and the basic 15Chapter 3 Machin
13、e dedicated fixture design 353.1 Determine the design task, and explicit processing requirements 353.2 Positioning program 353.3 Clamping design 353.4 Of cutting force and clamping force calculation 353.5 Positioning error analysis and calculation of 363.5.1 Positioning the component and tolerances
14、to determine 373.5.2 The positioning error calculation 373.6 Folder specific design 373.7 Fixture and machine connected component selection 383.8 Jig instructions 383.9 Structural characteristics of the fixture 39Conclusion 40Thanks 41References 42第 1 章 绪论1.1 涡轮减速器箱体综述涡轮减速器箱体类零件是机器或部件的基础零件，它将机器或部件中的
15、 轴、套、齿轮等有关零件组装成一个整体，使它们之间保持正确的相互位置 并按照一定的传动关系协调地传递运动或动力。因此，涡轮减速器箱体的加 工质量将直接影响机器或部件的精度、性能和寿命1。常见的减速器箱体类零件有：机床主轴箱、机床进给箱、变速涡轮减速 器箱体、减速器箱体、发动机缸体和机座等。根据减速器箱体零件的结构形 式不同，可分为整体式减速器箱体。涡轮减速器箱体的结构形式虽然多种多 样，但仍有共同的主要特点：形状复杂、壁薄且不均匀，内部呈腔形，加工 部位多，加工难度大，既有精度要求较高的孔系和平面，也有许多精度要求 较低的紧固孔。因此，一般中型机床制造厂用于涡轮减速器箱体类零件的机 械加工劳动量约占整个产品加工量的 15%20%2。对工件进行机械加工时，为了保证加工要求，首先要使工件相对于机床 有正确的位置，并使这个位置在加工过程中不因外力的影响而变动。为此， 在进行机械加工前，先要将工件装夹好。用夹具装夹工件时，工件相对于夹 具及机床
