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机床变速箱的钻底面8个孔夹具设计及加工工艺装备含非标7张CAD图+说明书

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机床变速箱零件图A2

机床变速箱机械加工工艺规程及夹具设计
摘要
机床夹具设计是现代机械零件制造和加工过程中，不能缺少的组成部分。机床夹具依据其类型不同分成不同种类，以适应不同复杂程度的零件和不同的加工工序和工步等。所以，对其进行研究有意义。
本次设计的题目是机床变速箱机械加工工艺规程及夹具设计，研究的机床变速箱为安装齿轮、轴等零部件提供保障。为机床实现不同转速发挥作用。设计内容包含工艺设计和夹具设计。
在对零件图解读后，确定零件生产类型，编写工艺路线，确定主轴转速、切削量等，填写工序卡。完成零件图、毛坯图绘制。经过分析决定设计钻底面8个孔钻床专用夹具，确定定位、夹紧方案；选择定位、夹紧元件；设计夹具体等。
关键词：机床变速箱、工艺规程、夹具、钻底面8个孔
ABSTRACT
Fixture design of machine tools is an indispensable part in the process of manufacturing and processing of modern mechanical parts. Machine tool fixtures can be divided into different types according to their types, so as to adapt to different complex parts and different processing procedures and steps. Therefore, it is meaningful to study it.
The topic of this design is the machine tool gearbox machining process rules and fixture design, the machine tool gearbox for the installation of gears, shafts and other components to provide protection. It can play a role in realizing different rotational speeds of machine tools. The design includes process design and fixture design.
After interpreting the part drawings, determine the type of part production, compile the process route, determine the spindle speed, cutting amount, etc., and fill in the process card. Complete drawing of parts and blanks. After analysis, it is decided to design the special fixture for 8 holes drilling machine on the bottom of the drill, determine the positioning and clamping scheme, select the positioning and clamping components, and design the fixture body.
Keywords: machine tool gearbox, process specification, fixture, drilling bottom 8 holes
目录
摘要I
ABSTRACT II
第1章绪论1
1.1机床夹具的概述1
1.2机床夹具的分类1
1.3夹具设计的特点和基本要求2
1.3.1夹具设计的特点2
1.3.2夹具设计的基本要求2
1.4机床夹具在机械加工中的作用2
第2章零件的工艺性分析3
2.1零件的结构工艺性分析概述3
2.2零件的组成表面、技术要求及形位公差分析3
2.2.1零件的组成表面分析3
2.2.2零件的技术要求分析3
2.2.3零件的形位公差分析4
2.3零件的作用4
2.4零件材料的确定4
2.5确定零件的生产类型5
2.6确定零件的毛坯类型5
第3章拟定零件工艺路线7
3.1选择定位基准7
3.2确定各表面的加工方案7
3.3工艺路线的选择、比较与确定8
3.4确定机床、夹具、刀具及量具9
3.5确定零件加工余量10
3.6计算切削用量及时间定额13
第4章钻孔专用夹具的设计33
4.1选择定位方案和定位元件33
4.1.1选择定位方案33
4.1.2选择定位元件33
4.2选择夹紧方案和夹紧元件34
4.2.1选择夹紧方案34
4.2.2选择夹紧元件34
4.3夹具体的设计34
4.4选择导向装置—钻套34
4.5计算钻削力35
4.6计算夹紧力35
4.7分析定位误差35
结论36
致谢37
参考文献38