江苏技术师范学院毕业设计说明书（论文）
张力机减速器上箱体零件结构及工艺工装设计
摘 要：减速器是原动机和工作机之间的独立的闭式传动装置，用来降低转速和
增大转矩。本文按照零件工艺设计的基本流程，经过对比论证，选择了实用正确的工艺路线。首先，对上箱体的结构进行了设计，其次从零件工艺分析到工艺流程的确定以及切削用量的计算，每步都给出了详细的说明。还设计了箱体零件铣削夹具，对切削力、夹紧力、定位误差进行了计算，对工作原理以及使用方法也给出了详细的解释。最后，通过专业软件，绘制出夹具的三维图，并给出装配过程。整个设计完成了箱体零件的工艺工装设计，并且设计出了实用的夹具。
关键词：箱体；工艺工装；切削用量；夹具
The Design of Parts Structure and Processing Technology and
Equipment of the Upper Casing on Reduction Gear
Abstract: Reduction gear box is a closed independent gearing, which links electric motor
and working machine, to cut down speed and increase torque. According to the basic sequence of parts' process principle, the practical and correct manufacturing process was chose through comparison of the different process. After comparative studies, I have chosen a correct and practical process route. At first, the design of the upper casing’s structure in my paper. Secondly, it gives a detailed statement from the analysis of parts' processing technology to the decision of process route. Next, it includes three parts, the design of fixture, the fixture force of every requirement, and detailed explanation of theory and usage. Three-dimensional map of tongs has been painted through a professional software, and the assemblage process as well. The whole design completes the design of processing technology and equipment of the parts and makes out practical tongs.
Key words: Box, Processing technology and equipment, Cutting parameters, Fixture
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江苏技术师范学院毕业设计说明书（论文）
目录
序 言 .......................................................................................................................................1
第1章 减速器上箱体结构设计 ......................................................................................2
1.1减速器上箱体的设计分析 ...................................................................................................2 1.2减速器上箱体的设计 ...........................................................................................................2 1.3减速器上箱体设计时所考虑的问题 ...................................................................................5
第2章 工艺设计 ..................................................................................................................8
2.1张力机减速器上箱体零件的工艺分析 ...............................................................................8 2.1.1减速器上箱体的用途及特点 ............................................................................................8 2.1.2减速器上箱体的技术要求 ................................................................................................8 2.1.3审查上箱体的工艺性 ........................................................................................................9 2.1.4 确定拨叉的生产类型 .......................................................................................................9 2.2确定毛坯 .............................................................................................................................10 2.2.1选择毛坯 ..........................................................................................................................10 2.2.2确定毛坯的尺寸公差和机械加工余量 ..........................................................................10 2.2.3绘制铸件毛坯简图 ..........................................................................................................11 2.3工艺规程设计 .....................................................................................................................12 2.3.1定位基准的选择 ..............................................................................................................12 2.3.2表面加工方法的确定 ......................................................................................................12 2.3.3加工阶段的划分 ..............................................................................................................13 2.3.4工序的集中和分散 ..........................................................................................................13 2.3.5加工原则 ..........................................................................................................................13 2.3.6制定工艺路线 ..................................................................................................................13
江苏技术师范学院毕业设计说明书（论文）
2.3.7机床设备及工艺装备的选用 ..........................................................................................15 2.3.8确立切削用量及基本工时 ..............................................................................................15
第3章 夹具设计 ................................................................................................................28
3.1粗铣凸台面的夹具设计 .....................................................................................................28 3.1.1定位基准的选择 ..............................................................................................................28 3.1.2定位元件的选择 ..............................................................................................................28 3.1.3定位误差分析 ..................................................................................................................28 3.1.4切削力的计算 ..................................................................................................................29 3.1.5夹紧力的计算 ..................................................................................................................30 3.1.6夹紧装置及夹具体的设计 ..............................................................................................30 3.1.7夹具操作说明 ..................................................................................................................30 3.2夹具的装配 .........................................................................................................................31
参考文献 ................................................................................................................................33
致 谢 .....................................................................................................................................34
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