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双联齿轮零件机械加工工艺及钻Φ28孔夹具设计论文[带图纸].pdf

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双联齿轮零件机械加工工艺及钻Φ28孔夹具设计论文[带图纸].pdf

本科毕业设计论文题目双联齿轮零件机械加工工艺及其典型夹具设计系别机电信息系专业机械设计制造及其自动化班级学生学号指导教师2013年05月I双联齿轮零件机械加工工艺及其典型夹具设计摘要通过对零件的分析,制定一套合理的工艺方案,并设计出可行的夹具。本文主要是围绕双联齿轮零件的机械加工工艺以及对其中两道工序的夹具设计来展开的。其主要内容有首先分析了零件图,确定生产类型和毛坯,确定加工设备,确定加工方案及装夹方案,刀具的选择,切削用量的选择与计算,数据处理等。本次设计主要是对钻φ28的孔和滚齿进行夹具设计,对夹具设计方案进行分析和选择。选定方案后,通过查阅相关夹具设计书籍和相关图例,最终完成钻孔和滚齿的夹具设计。试图找出一种简单、实用的加工方法,以提高劳动生产率和降低成本。关键词双联齿轮工艺分析工艺规程设计夹具设计IIThemachiningprocessandfixturedesignoftheDualgearAbstractPartoftheanalysis,todevelopareasonableprocessscheme,anddesignafeasiblefixture.ThispaperismainlyabouttheDualgearmachiningprocessandfixturedesignforthetwoprocessestostart.Itsmaincontentsarethefirstanalysisofthepartsdiagram,determinetheproductiontypeandblank,determinetheprocessingequipment,determinetheprocessingschemeandclampingscheme,toolselection,selectionandcalculationofcuttingparameters,dataprocessingetc..Thisdesignismainlytodrill28holesandhobbingfixturedesign,analysisandselectionofdesignschemeoffixture.Theselectedsolution,byconsultingtherelatedjiadesignbooksandrelatedlegend,fixturedesignfinisheddrillingandhobbing.Tryingtofindaprocessingmethodofsimple,practical,toimprovelaborproductivityandreducethecost.KeywordsDualgearProcessanalysisProcessdesignfixturedesignIII目录1绪论............................................................................................................................................11.1设计内容及意义..................................................................................................11.2国内外相关研究情况..........................................................................................11.3课题背景知识......................................................................................................21.4夹具设计..............................................................................................................52工艺规程设计.......................................................................................................................72.1工艺分析...............................................................................................................................72.1.1零件的作用....................................................................................................72.1.2零件工艺分析................................................................................................72.1.3生产纲领计算................................................................................................82.2毛坯选择...............................................................................................................................82.2.1选择毛坯种类................................................................................................82.2.2确定毛坯尺寸及机械加工总余量................................................................92.2.3绘制毛坯图.................................................................................................102.3制定工艺路线...................................................................................................................102.3.1定位基准选择..............................................................................................102.3.2加工阶段划分..............................................................................................112.3.3工序的集中与分散......................................................................................132.3.4工序顺序的安排..........................................................................................132.3.5工艺路线拟定..............................................................................................132.3.6加工设备及工艺装备选择.........................................................................152.3.7工序尺寸确定..............................................................................................162.3.8切削用量及基本工时..................................................................................173滚齿夹具设计....................................................................................................................263.1问题的提出........................................................................................................263.2确定定位方案....................................................................................................263.3确定夹紧机构...................................................................................................263.4确定其他装置...................................................................................................263.5绘制夹具总图...................................................................................................273.6夹具简要说明...................................................................................................284钻夹具设计..........................................................................................................................294.1问题的提出........................................................................................................29IV4.2定位基准的选择................................................................................................294.3确定夹紧机构....................................................................................................294.4绘制夹具装配图................................................................................................294.5切削力和夹紧力计算........................................................................................304.6定位误差分析....................................................................................................314.7夹具简要说明....................................................................................................315结论..........................................................................................................................................32参考文献.....................................................................................................................................33致谢...............................................................................................................................................34毕业设计(论文)知识产权声明..............................................................................35毕业设计(论文)独创性声明....................................................................................36

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