0--变速阀芯
摘要
本设计涉及到机械制造工艺及机床夹具设计、金属切削机床、公差和测量等方面的知识。
变速阀芯的专用夹具设计。在设计的过程中应该首先理解的分析部分,工序过程的设计一个毛坯的结构,并选择好零件的加工基准,设计出零件的工艺路线;然后每个切削用量的部分步骤大小计算,是决定工艺的关键设备和切割过程的各种设计参数,然后一个专用夹具,夹具选择各种组件的设计,如定位和夹紧元件连接部分,导向元件,夹具和机床和其他组件,定位误差计算夹具,分析夹具结构的合理性和不足之处,改进和设计。
关键词:工序、工艺、切削参数、夹紧、定位、误差。
ABSTRCT
This design relates to the mechanical manufacturing technology and machine tool fixture design, metal cutting machine tools, tolerances and measurements, and other aspects of knowledge.
The machining process and fixture design of the base consists of three parts, including process design, process design and special fixture design. In design process should first understand the analysis, structure of the process design of a blank, and choose the good parts machining reference to design parts of the process route; then calculate the amount of each cutting part of the step size, the decision process of key equipment and cutting process of various design parameters and a special fixture, the fixture selection design of various components, such as positioning and clamping elements connecting part, component oriented, tools and fixtures and other components, positioning error calculate fixture, fixture structure of rationality and disadvantage analysis, improvement and design.
Key words: process, process, cutting parameters, clamping, positioning, error.
目录
ABSTRCT 3
序言1
一零件的结构工艺分析和毛坯确定2
1.1零件的作用2
1.2零件的工艺性分析2
1.3确定毛坯类型与制造方法2
1.4毛坯形状及尺寸3
2工艺路线的拟定4
2.1定位基准的选择4
2.1.1粗基准的选择原则4
2.1.2精基准的选择原则4
2.2加工顺序的安排5
2.3热处理工序、辅助工序的安排5
2.4拟定工艺路线6
2.5切削用量的选择与确定7
三铣夹具设计9
3.1问题的提出9
3.2定位基准的选择9
3.3定位方案的设计9
3.4夹紧方案的设计10
3.4.1夹紧装置的组成及基本要求11
3.4.2夹紧装置的确定11
3.5切削力及夹紧力计算11
3.6定位误差分析14
3.7对刀装置设计14
3.8夹具体的设计17
3.9夹具设计及操作简要说明18
总结19
致谢21
参考文献22
夹具装配图
夹具体
零件图
毛坯图
