哑铃销——A2
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。
哑铃销的加工工艺规程和车环形槽的工艺设计、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：切削用量夹紧定位误差。
Abstract
The design involves the mechanical manufacturing process and machine tool fixture design, metal cutting machine tools, tolerance and measurement, and other aspects of knowledge.
The three parts are the processing technology of dumbbell pins, the process design, the process design and the design of special fixture. In the process design, the parts are analyzed first, the process of the parts is redesigned and the structure of the blank is redesigned. The process datum of the parts is selected and the process route of the part is designed. Then the size calculation of theworking procedure of the parts is calculated, the key is to determine the process equipment and the cutting amount of thevariousworking order; then, the key is to determine the amount of the process equipment and the cutting amount. The design of the special fixture is carried out, and the components of the fixture are designed, such as the positioning element, the clamping element, the guiding element, the connecting partswith the machine tool and the other parts. The positioning error is calculatedwhen the fixture is positioned, and the rationality and inadequacies of the fixture structure are analyzed, and the design is injected in the future. It is intended to be improved.
Keywords: cutting amount clamping positioning error.
目录
摘要I
前言1
第1章零件的分析2
1.1零件的作用2
1.2零件的结构工艺分析2
1.3关键表面的技术要求分析3
第2章工艺设计4
2.1确定生产类型4
2.1.1生产纲领4
2.1.2生产效率分析4
2.1.3生产类型4
2.2毛坯选择与毛坯图说明5
2.2.1毛坯选择5
2.2.2毛坯图说明6
2.3工艺路线的确定6
2.3.1粗、精基准的选择6
2.3.2选择加工方法7
2.3.3划分加工阶段7
2.3.4工序前后顺序的安排8
2.3.5选择的加工设备及工装9
2.3.6制订工艺路线10
2.3.7确定加工余量和切削用量以及时间定额11
第3章夹具定位夹紧方案分析与论证30
3.1定位机构30
3.2夹紧机构30
3.2.1选择夹紧机构30
3.2.2切削力及夹紧力的大小30
3.3误差分析31
3.4定位误差的计算32
第4章夹具总体结构分析及夹具的使用说明33
4.1夹具体总体结构分析33
4.2夹具的使用说明33
设计小结34
参考文献35
夹具装配图——A0
花盘——A1
夹具体——A0
铰链支座——A4
螺杆支座——A4
毛坯图——A2
配重块——A2
工序卡4
工序卡5
工序卡6
工序卡7
工序卡8
工序卡9
工序卡10
工序卡11
过程卡
夹具设计部分
设计所包含文件
字数统计
工序卡3
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