摘要随着国民经济的快速发展和生产规模的不断扩大，客户对钢材的质量和精度要求越来越高，一些板材、型钢和管材必须经过矫直过程才能达到用户要求。在这种背景下，矫直技术得以迅速发展，应用也越来越广泛。同时在产品设计阶段充分考虑产品的可装配性，来改善产品的装配性能，降低产品的装配成本。本论文首先介绍了课题研究的目的和意义，综述了当前拉矫机的国内外研究状况。然后，对拉矫机进行分析，画出拉矫机的零件图与装配图。最后，阐述了一些虚拟装配的原理、技术、功能和特点，进行了虚拟装配系统的构建，提出了基于普通PC机为硬件平台、PRO/E和AutoCAD为软件平台的虚拟装配方法。分析了虚拟装配的特点和关键信息，研究了虚拟装配序列。同时还将这种虚拟装配方法应用到拉矫机的虚拟装配仿真中，取得了较好的效果。关键词：拉矫机;虚拟装配;装配图;PRO/E;AutoCADAbstractWiththerapiddevelopmentofthenationaleconomyandtheexpandingofproductionscale,qualityandaccuracyofthecustomersofthesteelbecomingmoredemanding,somesheetmetal,steelandpipemustgothroughthestraighteningprocessinordertomeetuserrequirements.Inthiscontext,straighteningtechnologyhasdevelopedrapidly,andapplicationsareincreasinglybeingused.Atthesametimeinthestageofproductdesignfullyconsidertheproductassemblability,toimprovetheassemblyperformanceoftheproducts,reduceproductassemblycost.Thispaperfirstdescribesthepurposeandsignificanceoftheresearch,domesticandinternationalresearchstatusofthetensionleveler,analysisofthetensionlevelerdrawstraighteningmachinepartdrawingandassemblydrawing,andfinallydescribedanumberofvirtualassemblyprinciples,techniques,functionsandfeatures,theconstructionofthevirtualassemblysystem,thevirtualassemblymethodsbasedonordinaryPChardwareplatform,PRO/EandAutoCADsoftwareplatform.Avirtualassemblyofcharacteristicsandkeyinformation.Virtualassemblysequence,Finally,thisvirtualassemblymethodsappliedtothevirtualassemblysimulationofthetensionleveler,andachievedgoodresults.Keywords:Straighteningmachine；Virtualassembly；Assemblydrawing；PRO/E；AutoCAD目录1绪论................................................11.1论文研究背景、目的与意义............................11.2虚拟装配...........................................21.2.1国外研究概况.....................................21.2.2国内研究概况.....................................41.2.3虚拟装配技术研究的发展趋势........................51.3论文的研究内容.....................................62拉矫机零件公差设计..................................62.1极值法分析装配性能.................................72.2拉矫辊轴的公差设计.................................82.3轴承座一内孔的公差设计..............................93拉矫机装配工艺分析与设计...........................103.1上拉矫辊装配工艺分析..............................113.2上拉矫辊装配仿真研究..............................153.2.1零件建模........................................153.2.2仿真研究........................................213.3拉矫机整体装配工艺分析.............................233.4拉矫机整体装配仿真研究.............................293.5干涉检查..........................................304总结与展望.........................................31参考文献.............................................32致谢...............................................331绪论1.1论文研究背景、目的与意义随着虚拟制造(VM，VirtualManufacturing)、精益生产(LP，LeanProduction)、敏捷制造(AM，AgileManufacturing)、并行工程(CE，ConcurrentEngineering)、虚拟企业(VE，VirtualEnterprise)、及时制造(激T，JustInTime...