钻、攻M12X1.25螺纹装配图——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、攻M121.25-5H螺纹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 and tapping M12x1 The fixture design of 25-5h thread 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 2
第一章绪论2
1．1引言2
1．2机械加工工艺规程的作用2
1．3研究方法及技术路线3
1．4课题背景及发展趋势4
第2章工艺规程设计5
2．1毛坯的制造形式5
2. 2零件分析5
2．3基面的选择5
2.3.1粗基准的选择原则5
2．3．2精基准选择的原则6
2．4制定工艺路线6
2．6确定切削用量及基本工时8
第3章钻、攻M121.25-5H螺纹的夹具设计22
3.1：问题的提出22
3.2：定位基准的选择22
3.3切削力及夹紧力计算22
3.4定位误差分析22
3.5钻套的设计23
3.6夹具截图25
总结27
致谢28
参考文献29
总泵缸体零件图
设计所包含文件
钻、攻M12X1.25螺纹夹具体——A1
过程卡
目录
字数
毛坯图——A3
摘要
夹具设计部分
