杠杆臂工艺规程及夹具设计说明书.docx
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1、题目:杠杆臂工艺规程及夹具设计摘要本设计涉及机械制造工艺和机床夹具设计、金属切削机床、公差测量等方面的知识。杠杆臂加工工艺和钻孔夹具设计包括零件加工工艺设计、工艺设计和专用夹具设计三个部分。在工艺设计中,首先要对零件进行分析,了解零件的工艺,然后设计毛坯的结构,并选择零件的加工基准,设计零件的工艺路线;然后对零件各工序的工艺尺寸进行计算,关键是确定各工序的工艺设备和切削用量;然后进行专用夹具设计,选择设计的夹具部件,如定位部件、夹紧部件、导向部件、夹具专用部件和机床连接部件等;计算夹具定位时产生的定位误差,分析夹具结构的合理性和不足之处,并在以后的设计中注意改进。关键词:工艺、工序、切削用量、
2、夹紧、定位、误差。ABSTRCTThis design content has involved the machine manufacture craft andthe engine bed jig design, the metal-cutting machine tool, the commondifference coordination and the survey and so on the various knowledge.The reduction gear box body components technological process and itsthe proces
3、sing hole jig design is includes the components processing thetechnological design, the working procedure design as well as the unitclamp design three parts. Must first carry on the analysis in thetechnological design to the components, understood the components thecraft redesigns the semi finished
4、materials the structure, and chooses thegood components the processing datum, designs the components the craftroute; After that is carrying on the size computation to a components eachlabor step of working procedure, the key is decides each working procedurethe craft equipment and the cutting specif
5、ications; Then carries on the unitclamp the design, the choice designs the jig each composition part, likelocates the part, clamps the part, guides the part, to clamp concrete and theengine bed connection part as well as other parts; Position error whichcalculates the jig locates when produces, anal
6、yzes the jig structure therationality and the deficiency, and will design in later pays attention to theimprovement.Keywords: The craft, the working procedure, the cuttingspecifications, clamp, the localization, the error目录摘要IABSTRCTII序言1第1章零件的分析21. 1零件的作用2L 2零件的工艺分析2第2章工艺规程设计42.1 确定毛坯的制造形式42. 2基面的选
7、择42. 3制定工艺路线52. 4机械加工余量、工序尺寸及毛坯尺寸的确定72.5确定切削用量及基本工时8第3章夹具设计133.1问题的提出133. 2定位基准的选择133. 3定位方案及定位元件的选择143.4 夹紧方案的选择153.5 切削力和夹紧力的计算163.6 定位误差分析173. 7夹具设计及操作的简要说明17第4章 三维建模设计184.1软件概述184. 2杠杆臂零件三维建模194. 3夹具三维建模23第5章总结24致谢26参考文献27IV机械制造业是制造具有一定形状位置和尺寸的零件和产品,并把它们装备成机械装备的行业。机械制造业的产品既可以直接供人们使用,也可以为其它行业的生产提
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