方刀架机械加工工艺及钻8-M12的螺纹孔夹具设计

00零件图

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。
方刀架加工工艺规程设计是包括零件加工的工艺设计、工序设计两部分。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。

关键词：工艺、工序、切削用量。

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.
Keywords: The craft, the working procedure, the cutting specifications

目录
ABSTRCT 3
序言1
一零件的分析2
1.1零件的作用2
1.2零件的工艺分析2
二毛坯的确定3
2.1确定毛坯的制造形式3
2.2毛坯形状及尺寸3
三拟定加工工艺路线4
3.1基准的选择4
3.1.1粗基准选择4
3.1.2精基准的选择5
3.2制定工艺路线6
3.3机械加工余量、工序尺寸及毛坯尺寸的确定8
3.4确定切削用量及基本工时8
四夹具设计15
4.1问题的提出15
4.2定位基准的选择15
4.3切削力和夹紧力的计算16
4.4定位误差分析17
4.5夹具设计及操作的简要说明17
总结18
致谢20
参考文献21

夹具装配图

工序简图

夹具体

零件图

毛坯