中立柱内加强板分总成焊接工装夹具设计(2)

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1、中立柱内加强板分总成焊接工装夹具设计学生姓名班级：指导老师：熊震宇摘要：针对江铃皮卡汽车中立柱内加强板焊接工件，根据汽车行业焊装夹具设计的一般方法和原则，设计了一套现代化合理实用的焊接夹具。采用了自动化程度较高的气动夹具，详细分析了气缸直径与行程的选定，并对夹具受力复杂部件进行理论应力强度分析，优化焊接夹具零部件的设计。本文采用计算机辅助设计方法，利用UG（Unigraphics）软件的三维建模以及装配功能对夹具零部件进行快速设计与装配，缩短了焊装夹具设计周期、提高了效率、形象直观，提升了设计质量并降低了成

2、本，避免了传统的二维设计方法设计周期长、更改不便、复杂局部难以直观表达的缺点。设计的整套夹具体零部件较多，部分位置不便观察，采用UG装配序列功能制作装配序列动画可以使工人了解夹具各个零件间的装配关系及整个夹具的装配顺序，提高装配效率。UG运动仿真对夹具打开、夹紧及焊接工件的放入、取出进行运动分析及干涉检查，保证夹具设计方案的优化和设计质量，为焊接夹具的设计和验证优化提供了技术基础，提高了设计效率，获得了符合设计要求的中立柱内加强板焊接夹具。该设计满足企业实际生产要求，具有一定的实用价值。关键词：气动夹具UG

3、建模与装配运动仿真指导老师签名：InnerreinforcingplateofcenterpillarSubassemblyweldingfixturedesignStudentname:Class:Supervisor:XiongZhenyuAbstract:Accordingto“innerreinforcingplateofcenterpillar”workpieces,whetherbasedonthegeneralmethodsandprinclplesofweldingfixturedesign

4、inautoindustry.Amodernizationandreasonablepneumaticweldingfixturedesignedwithahighdegreeofautomationwhendetaillyanalyzedtheselectionofdiameterandstrokeoncylinder.Theoreticalstressintensityanalysisonfixturewhichbearedcomplexforcethatcanoptimizethedesignofwe

5、ldingfixture.Thispaperadoptingthemethodofcomputer-aideddesign,basedontheUnigraphicssoftwareofthreedimensionalmodelingandassemblyfunctionoffixturepartsforrapiddesignandassemblyshorteningtheweldingfixturedesigncycle,improveefficiency,visualimage,improvethede

6、signqualityandreducethecost,avoidingthetraditionaltwodimensionaldesignwhichthedesigncycleislong,changtheinconvenience,theshortcomingsofcomplexparticalhandtovisual,andholderofacompletesetofmorespecificpartswhichthepartpositioninconvenientobservation.UGassem

7、blysequencefeaturestomakeassemblysequenceanimationwhichallowsworkerstounderstandeachfixtureassemblyrelationsbetweenpartsandthewholefixtureassemblysequence,thatcanimprovetheassemblyefficiency.UGmotionsimulationforopenfixtures,clampingandweldingworkpiecespla

8、ced,removedformotionanalysisandinterferencechecking.Whichguaranteedfixturedesignoptimizationanddesignquality.Thismethodprovidedtechnicalbasis,Improvetheefficiencyofdesign,bywhichthesuitableweldingfixturewasac