设计描述：

文档包括:
word版设计说明书一份，49页，约18000字
任务书一份
开题报告一份
翻译一份

CAD版本图纸，共4张
工序卡一套

 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
 
Abstract
The graduation design is the main content of the machining process planning preparation and special fixture design process. I can comprehensive use of mechanical manufacturing 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 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, 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 selection 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, 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
目  录
摘    要 I
Abstract II

第1章  绪论 1
1.1  涡轮减速器箱体综述 1
1.2  涡轮减速器箱体国内外发展概况 2
1.2.1  涡轮减速器箱体机械加工工艺发展概况 2
1.2.2  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 5
2.1  涡轮减速器箱体的工艺分析 5
2.1.1  涡轮减速器箱体的作用 5
2.1.2  涡轮减速器箱体的工艺分析 5
2.2  选择毛坯 6
2.3  确定铸件机械加工余量、毛坯尺寸和公差 6
2.4  设计毛坯图 7
2.4.1  确定圆角半径 7
2.4.2  确定毛坯的热处理方式 7
2.5  机械加工工艺路线的制订 9
2.5.1  选择定位基准 9
2.5.2  制订工艺路线 10
2.5.3  加工工艺过程的分析 13
2.5.4  选择加工设备与工艺装备 13
2.5.5  确定工序尺寸 14
2.5.6  确定切削用量及基本时间 15
第3章 机床专用夹具的设计 35
3.1  确定设计任务、明确加工要求 35
3.2  定位方案的确定 35
3.3  夹紧机构的设计 35
3.4  切削力和夹紧力的计算 35
3.5  定位误差的分析与计算 36
3.5.1  定位元件尺寸及公差确定 37
3.5.2  定位误差计算 37
3.6  夹具体的设计 37
3.7  夹具与机床连接元件的选择 38
3.8  夹具的使用说明 38
3.9  夹具的结构特点 39
结  论 40
致  谢 41
参考文献 42

CONTENTS
Abstract II

Chapter 1  Introduction 1
1.1  Turbo gearcase Review 1
1.2  Turbo reducer box domestic and international development overview 2
1.2.1  Turbine gear unit housing process for development overview 2
1.2.2  Turbine gear unit housing fixture Development Abroad 3
Chapter 2  Part of the process planning 5
2.1  Turbo gear unit housing process analysis 5
2.1.1  Turbine gear unit housing role 5
2.1.2  Turbine gear unit housing process analysis 5
2.2  Select rough 6
2.3  Determine the roughcast allowances, blank dimensions and tolerances 6
2.4  Design rough Figure 7
2.4.1  Determine the fillet radius 7
2.4.2  To determine the heat treatment of blanks 8
2.5  Turbo gear unit housing process analysis 9
2.5.1  Select locating datum 9
2.5.2  Develop a process route 10
2.5.3  Machining process analysis 13
2.5.4  Select the processing equipment and process equipment 13
2.5.5  To determine process size 14
2.5.6  To determine the cutting parameters and the basic 15
Chapter 3  Machine dedicated fixture design 35
3.1  Determine the design task, and explicit processing requirements 35
3.2  Positioning program 35
3.3  Clamping design 35
3.4  Of cutting force and clamping force calculation 35
3.5  Positioning error analysis and calculation of 36
3.5.1  Positioning the component and tolerances to determine 37
3.5.2  The positioning error calculation 37
3.6  Folder specific design 37
3.7  Fixture and machine connected component selection 38
3.8  Jig instructions 38
3.9  Structural characteristics of the fixture 39
Conclusion 40
Thanks 41
References 42