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直齿圆柱齿轮的滚齿轮夹具设计及加工工艺含非标5张CAD图+说明书

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直齿圆柱齿轮零件

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。
直齿圆柱齿轮的工艺设计和加工直齿圆柱齿轮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：直齿圆柱齿轮；工艺；夹具设计；工序；工艺路线；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 technological design of spur gear and the fixture design of processing spur gear are three parts, including the technological 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: spur gear; process; fixture design; process; process route; cutting parameters
目录
摘要I
Abstract II
第1章绪论1
1.1机床夹具的主要功能1
1.2机床夹具的组成1
1.3夹具设计的步骤和基本要求1
第2章零件的分析9
2.1零件的作用9
2.2零件的工艺要求9
第3章机械加工工艺路线10
3.1确定毛坯的制造形式10
3.2基面的选择10
3.3加工工艺路线12
3.4机械加工余量的确定13
3.5确定切削用量及基本工时13
第4章专用夹具设计32
4.1问题的提出32
4.2定位基准的选择32
4.3定位元件的设计33
4.3定位误差分析33
4.4切削力的计算与夹紧力分析34
4.5夹具设计及操作简要说明35
参考文献35
心得体会37