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行星减速器端盖II零件的钻6-M12螺纹底孔夹具设计及加工工艺含非标7张CAD图+说明书

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A0端盖零件图

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。
端盖的加工工艺和钻、攻6-M12螺纹底孔的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：端盖、加工工艺、夹具设计、切削用量
Abstract
This design involves the knowledge of machine manufacturing technology and fixture design, metal cutting machine tools, tolerance matching and measurement, etc.
The processing technology of end cover and the design of fixture for drilling and tapping the bottom hole of 6-M12 thread are three parts, including the process design of parts processing, the process design and the design of special fixture. In the process design,we should first analyze the parts, understand the process of the parts, then design the structure of the blank, and select the processing benchmark of the parts, design the process route of the parts; then calculate the size of the parts in each step, the key is to determine the process equipment and cutting parameters of each step; and then,we can choose the processing benchmark of the parts. The design of the special fixture is carried out, and the components of the fixture are selected, such as positioning elements, clamping elements, guiding elements, connecting parts between the fixture body and the machine tool, and other components. The positioning errors caused by fixture positioning are calculated, and the rationality and shortcomings of fixture structure are analyzed. Improvement.
Keywords: end cap, processing technology, fixture design, cutting parameters
目录
摘要I
Abstract II
1绪论1
1.1夹具的发展要求1
1.2设计夹具体的要点1
1.3机床夹具在机械加工中的作用2
2零件的分析3
2.1零件的作用3
2.2零件的工艺分析3
3工艺规程设计3
3.1确定毛坯的制造形式3
3.2基面的选择4
3.3确定各工序的加工余量5
3.4制订工艺路线8
3.5确定切削用量以及时间定额9
4钻床夹具设计40
4.1问题的提出40
4.2定位基准的选择40
4.3定位元件的设计40
4.4定位误差分析40
4.5切削力的计算与夹紧力分析41
4.6夹具设计及操作简要说明42
谢辞43
参考文献44