减速箱体的镗φ50、φ82孔夹具设计及加工工艺含4张CAD图+说明书

镗孔夹具装配图

摘要
本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。
减速箱体加工工艺规程及夹具设计是包括零件加工的工艺设计、工序设计以及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析，了解零件的工艺再设计出毛坯的结构，并选择好零件的加工基准，设计出零件的工艺路线；接着对零件各个工步的工序进行尺寸计算，关键是决定出各个工序的工艺装备及切削用量；然后进行专用夹具的设计，选择设计出夹具的各个组成部件，如定位元件、夹紧元件、引导元件、夹具体与机床的连接部件以及其它部件；计算出夹具定位时产生的定位误差，分析夹具结构的合理性与不足之处，并在以后设计中注意改进。
关键词：工艺、工序、切削用量、夹紧、定位、误差。
ABSTRCT
This design content has involved the machine manufacture craft and the engine bed jig design, the metal-cutting machine tool, the common difference coordination and the survey and so on the various knowledge.
The reduction gear box body components technological process and its the processing hole jig design is includes the components processing the technological design, the working procedure design as well as the unit clamp design three parts. Must first carry on the analysis in the technological design to the components, understood the components the craft redesigns the semi finished materials the structure, and chooses the good components the processing datum, designs the components the craft route; After that is carrying on the size computation to a components each labor step of working procedure, the key is decides each working procedure the craft equipment and the cutting specifications; Then carries on the unit clamp the design, the choice designs the jig each composition part, like locates the part, clamps the part, guides the part, to clamp concrete and the engine bed connection part as well as other parts; Position error which calculates the jig locates when produces, analyzes the jig structure the rationality and the deficiency, and will design in later pays attention to the improvement.
Keywords: The craft, the working procedure, the cutting specifications, clamp, the localization, the error
目录
摘要1
ABSTRCT 2
序言1
一零件分析2
1.1零件的作用2
1.2零件的工艺分析2
二工艺规程设计4
2.1确定毛坯的制造形式4
2.2基面的选择4
2.3制定工艺线路5
2.4确定切削用量7
三镗床夹具设计19
3.1工件加工工艺分析19
3.2定位方案及定位元件设计19
3.3夹紧方案及夹紧元件设计20
3.4镗杆的直径与长度20
3.5夹具体的设计20
3.6镗套的设计21
3.7切削力及夹紧力计算23
3.8夹具精度分析计算26
3.9镗孔夹具的装配说明28
结论29
致谢30
参考文献31

减速箱体零件图A1

减速箱体毛坯图A1

镗孔夹具体

字数统计

设计所包含文件

钻D向4-M6螺纹孔工序卡

镗Φ52H8工序卡

铣右侧面保证159工序卡

车Φ310孔和Φ185孔工序卡

粗镗φ82、φ50H8孔工序卡

铣235mm端面工序卡

加工过程卡

夹具设计部分

说明书前三页