立式环缝自动焊接机虚拟设计论文[带图纸].doc

编号无锡太湖学院毕业设计（论文）题目立式环缝自动焊接机虚拟设计信机系机械工程及自动化专业学号学生姓名指导教师（职称副教授）2013年5月25日无锡太湖学院本科毕业设计（论文）诚信承诺书本人郑重声明所呈交的毕业设计（论文）立式环缝自动焊接机虚拟设计是本人在导师的指导下独立进行研究所取得的成果，其内容除了在毕业设计（论文）中特别加以标注引用，表示致谢的内容外，本毕业设计（论文）不包含任何其他个人、集体已发表或撰写的成果作品。班级机械94学号0923162作者姓名2013年5月25日II摘要气电立焊是由普通熔化极气体保护焊和电渣焊发展而形成的一种熔化极气体保护电弧焊方法,焊接效率及焊接质量均较高,主要应用于船舶的外壳板的中厚板焊接，也可应用于相应尺寸的桥梁箱式梁腹板及大型储罐侧板的中厚板的焊接。为了提高快速响应能力，必须实现快速虚拟设计。本论文首先介绍了气电立焊机，包括它的原理、特点、工艺特点，并介绍了其设备和用途，详细介绍了船体气电自动立焊机。其次，我们完成了丝杆的三维建模。另外，为了应对繁多的齿轮传动，我们专门开发了PRO/E参数化齿轮建模方法，完成了参数化齿轮建模。综合运用PRO/ENGINEER软件、CAXA软件、AUTOCAD软件，我们完成了轴承三维模型的创建。利用PRO/E的零件族表功能，我们完成了大量标准件的三维建模，诸如轴承、螺栓、垫片、螺帽等等。然后，我们在PRO/E中进行机构运动仿真，介绍一些具有代表性的装配过程，这些装配过程用到了一些实用的装配技巧。我们介绍了基本装配约束，多个螺栓的重复性装配，链条的阵列化装配，装配件中的改名操作，轴组件的装配。最后，我们进行了机构运动虚拟设计。把各个零部件通过装配模块组装成一个完整的机构后，在PRO/E中直接启动机构运动分析模块，定义机构中的连接，设置伺服电机，分析运行机构，观察机构的整体运动轨迹和各零件之间的相对运动，进行运动仿真举例，最终能将机构运动录制成JPEG格式的动画。关键词气电立焊三维建模虚拟设计仿真IIIAbstractElectrogasweldingisakindofmeltingbytheordinarygasmetalarcweldingandelectroslagweldingdevelopmentandtheformationofpolargasshieldedarcweldingmethod,weldingefficiencyandweldingqualityishigh,thickplateweldingoftheshellplateismainlyappliedtotheship,butalsocanbeappliedtothecorrespondingsizeofbridgeboxgirderwebsandlargestoragetanksideweldingofplate.Inordertoimprovetherapidresponsecapability,toachieverapidvirtualdesign.Thispaperfirstlyintroducestheelectrogasweldingmachine,includingtheprinciple,characteristics,itsprocesscharacteristics,andintroducestheequipmentanduse,detailsoftheshipbodyelectricautomaticverticalweldingmachine.Secondly,wecompletedthethreedimensionalmodelingofwirerod.Inaddition,inordertodealwithvariouskindsofgeartransmission,wespecializesinthedevelopmentofgearparametricmodelingmethodofPRO\/E,theparametricmodelingofgear.ComprehensiveuseofPRO\/ENGINEERsoftware,CAXAsoftware,AUTOCADsoftware,wecompletedthecreationofthreedimensionalmodelofbearing.WiththefamilytablefunctionpartsofPRO\/E,wecompletedthethreedimensionalmodelingofmanystandardparts,suchasbearings,bolts,gaskets,nutetc..Then,weperformedthemechanismmovementsimulationinPRO\/E,introducessomerepresentativeassembly,theassemblyprocesstousesomepracticalassemblyskills.Weintroducedthebasicassemblyconstraints,repeatedassemblyofapluralityofbolt,chainarrayassembly,assemblyofrenamingoperation,shaftassembly.Finally,wecarriedoutthemovementofvirtualdesign.Theassembledintoacompletemechanismofeachpartsoftheassemblymodule,directstartmechanismmotioninPRO\/Eanalysismodule,connectdefinitionmechanism,aservomotorisarranged,analysisoftheoperationmechanism,therelativemovementbetweentheoveralltrajectoryofinstitutionsandallpartsofthesimulationexercise,forexample,canfinallymechanismmotionrecordsintoJPEGformatanimation.Keywordselectrogaswelding3DmodelingvirtualdesignsimulationV目录摘要............................................................................................................................................IIABSTRACT..................................................................................................................................III目录............................................................................................................................................V1绪论.............................................................................................................................................11.1本课题的研究内容和意义...................................................................................................11.2国内外的发展概况...............................................................................................................11.3本课题应达到的要求...........................................................................................................32气电立焊机介绍.........................................................................................................................42.1气电立焊的原理...................................................................................................................42.2气电立焊的特点...................................................................................................................42.3气电立焊工艺特点...............................................................................................................52.4气电立焊设备介绍...............................................................................................................73主要零部件建模.........................................................................................................................93.1丝杠的三维建模...................................................................................................................93.2参数化齿轮建模.................................................................................................................113.3轴承三维模型的创建.........................................................................................................163.4垫片的创建.........................................................................................................................194零部件虚拟装配.......................................................................................................................224.1基本装配约束介绍.............................................................................................................224.2多个螺栓的重复性装配.....................................................................................................224.3链条的阵列化装配.............................................................................................................244.4装配件中的改名操作.........................................................................................................254.5轴组件的装配.....................................................................................................................255机构运动虚拟设计...................................................................................................................275.1机构运动虚拟设计功能概述.............................................................................................275.1.1机构运动虚拟设计功能概述.......................................................................................275.1.2机构运动虚拟设计功能的一般步骤...........................................................................275.2连接定义.............................................................................................................................275.3定义伺服电机.....................................................................................................................285.4创建运动分析.....................................................................................................................285.5运动仿真举例.....................................................................................................................29