轴支架A3
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。
轴支架零件的工艺规程及其钻2-Ф12孔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：轴支架、夹具设计、工艺路线。
Abstract
The design content of the mechanical manufacturing technology and machine tool fixture design, metal cutting machine tool, tolerance matching and measurement of aspects of knowledge.
Shaft bracket parts of process planning and its 2-Ф 12 holes of fixture design is including parts processing process design, process design and special fixture design three parts. Should first analyze the parts in the process design, understand parts of technology to design the structure of blank, and choose the good parts processing benchmark, design process of the parts; Then the parts size of eachwork step of the process, the key is to determine the process equipment for each process and cutting parameter; For the design of special fixture, then select design out of the component parts of the fixture, such as the positioning device, clamping device, led components, specific connectionwith machine parts and other parts; Calculated at the exit of fixture locating position error, analysis the rationality of the fixture structure and deficiency, and pay attention to the improvement in the later design.
Keywords : Shaft bracket, fixture design, process route.
目录
摘要I
Abstract II
1概述发展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
2工艺规程设计7
2.1毛坯的制造形式7
2.2零件分析7
2.3基面的选择7
2.3.1粗基准的选择原则7
2.3.2精基准选择的原则8
2.4制定工艺路线8
2.5确定各工序的加工余量及公差9
2.6确定切削用量及基本工时10
3钻床夹具设计19
3.1定位机构19
3.2夹紧机构19
3.3导向装置的选择21
3.4机床夹具的总体形式23
3.4.1确定夹具体23
3.4.2确定联接体24
3.5绘制夹具装配图24
4定位误差设计27
4.1误差分析27
4.1.1定位误差27
4.1.2产生定位误差的原因27
4.2定位误差的计算28
总结30
致谢31
参考文献32
夹具装配图A1
夹具体A1
轴支架毛坯合件A3
零件分析
设计目录
设计所包含文件
图纸所包含文件
摘要部分
字数统计
过程卡
夹具设计部分
