钻3.5孔装配图——A1
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。
总泵缸体工艺规程及其钻透孔Φ0.7、沉孔Φ3.5和Φ3.5通孔的工装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。
Abstract
This design involves many aspects of knowledge, such as mechanical manufacturing process, machine tool fixture design, metal cutting machine tool, tolerance matching and measurement.
Master cylinder block process specification and drilling through hole Φ 0.7 counterbore Φ 3.5 and Φ 3.5 the tooling fixture design of through hole includes three parts: process design, process design and special fixture design. In the process design, we should first analyze the parts, understand the process of the parts, then design the structure of the blank, select the machining benchmark of the parts, and design the process route of the parts; Then, the size of each step of the part is calculated. The key is to determine the process equipment and cutting parameters of each process; Then the special fixture is designed, and each component of the fixture is selected and designed, such as positioning element, clamping element, guiding element, connecting part between clamp and machine tool and other parts; Calculate the positioning error caused by fixture positioning, analyze the rationality and shortcomings of fixture structure, and pay attention to improvement in future design.
Key words: process, process, cutting parameters, clamping, positioning, error.
目录
摘要I
Abstract II
第一章绪论1
1．1引言1
1．2机械加工工艺规程的作用1
1．3研究方法及技术路线2
1．4课题背景及发展趋势3
第2章工艺规程设计4
2．1毛坯的制造形式4
2. 2零件分析4
2．3基面的选择4
2.3.1粗基准的选择原则4
2．3．2精基准选择的原则5
2．4制定工艺路线5
2．6确定切削用量及基本工时7
第3章钻透孔Φ0.7、锪沉孔Φ3.5、钻Φ3.5通孔的夹具设计21
3.1：问题的提出21
3.2：定位基准的选择21
3.3切削力及夹紧力计算21
3.4定位误差分析21
3.5钻套的设计22
3.6夹具截图22
总结24
致谢25
参考文献26
总泵缸体零件图
设计所包含文件
夹具设计部分
过程卡
钻3.5孔夹具体——A1
字数
毛坯图——A3
摘要
目录
