00零件尺寸
摘要
CA3140杠杆的加工工艺和夹具设计一共由三个部分组成,包括工艺设计、工序设计和专用夹具设计。在设计的过程中应该首先理解的工艺分析部分,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计算,是决定工艺的关键设备和工序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,如定位元件和夹紧装置,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
The processing technology and fixture design of CA3140 lever is composed of three parts, including process design, process design and special fixture design. In the process of the design process should first understand the analysis, structure design process of a blank, and choose the good components the processing datum, design a part of the process route calculation; then each cutting, is the key design parameters of equipment and process technology of the decision process, and then a special the design of fixture, the various components of the selection of fixture, such as positioning element and a clamping device, a guide element, tools and fixtures and other components, calculate locating errors, analysis of fixture structure rationality and shortcomings, design and improvement.
Key words: process, process, cutting parameters, clamping, positioning, error.
目录
序言1
一零件的分析2
1.1零件的作用2
1.2零件的精度分析2
1.3零件的工艺分析3
二工艺规程设计4
2.1确定毛坯的制造形式4
2.2确定毛坯尺寸公差和加工余量4
2.2.1确定毛坯尺寸4
2.2.2确定毛坯尺寸公差等级和公差5
2.3绘制毛坯图6
2.4基面的选择6
2.5表面加工方法的确定7
2.6加工阶段的划分9
2.7工序集中与分散9
2.8制定工艺路线10
2.9确定切削用量及基本工时12
三钻孔夹具设计17
3.1问题的提出18
3.2定位方案设计18
3.3切削力和夹紧力的计算19
3.4定位误差分析19
3.5夹具设计及操作的简要说明20
总结21
致谢22
参考文献23
夹具装配图
夹具体
零件图
毛坯图
