冷凝器后罩折弯机的结构装置设计论文.doc

I摘要在研究国内外折弯机械的发展状况和我国折弯机械存在的问题的基础上，根据零件作业的要求，设计了一种利用液压元件驱动单向作业的折弯机。该机型采用曲柄滑块机构，解决了实际生产之中薄板材的折弯。并且通过对机构的运动分析和计算，通过机构的转化来实现使折弯力在加工过程之中始终与零件时刻保持垂直的一台空调冷凝器后罩生产线上专用的三梁二柱式的非标准设备。该折弯机的特点是结构简单，操作容易，工效高。关键词：折弯机液压非标设备IIAbstractInstudiesthedomesticandforeignkneebendmachinerythedevelopmentconditionandourcountrybendsatthekneesinthequestionfoundationwhichthemachineryexists,accordingtothecomponentsworkrequest,designedonekindtoactuatetheunidirectionalworkusingthehydraulicpressurepartthebookletbender.Thistypeusesthecrankslideorganization,hassolvedduringtheactualproductionthethinplatekneebend.Andthroughtotheorganizationmovementanalysisandthecomputation,realizesthroughtheorganizationtransformationmakesthekneebendstrengththroughouttomaintainonaverticalairconditioningcondenserrearcowlproductionlineintheprocessingprocesswiththecomponentstimethespecial-purposethreeLiangtwocolumntypenon-standardequipment.Thisbookletbendercharacteristicisthestructureissimple,theoperationiseasy,theworkefficiencyishigh.Keyword:FoldsthebenderHydraulicpressureNon-signequipmentIII目录摘要.IAbstract.II第1章绪论.11.1国内外的科技现状.11.1.1国内外的现状.11.2选题目的和意义.21.3本文主要研究内容.3第2章折弯产品的零件图.4第3章折弯机设计原理和机构方案的分析、比较、确定.63.1折弯机设计原理的分析、比较、确定.63.2折弯机结构方案的分析、确定.7第4章折弯机设计的计算和结构说明.94.1折弯力的计算.94.2压边力的计算.104.2.1压紧块的设计.104.2.2压边力的计算.114.2.3压紧块中心位置的确定.124.3机架的受力分析.134.3.1机架以及相关零件参数的确定.134.3.2机架的受力分析.154.4油缸的选取.224.4.1压紧缸的选取.224.4.2折弯缸的选取.234.5液压系统的设计.294.5.1负载分析.294.5.2执行元件主要参数的确定.304.5.3拟定液压系统原理图.31第5章典型零件的加工工艺过程.34IV5.1导柱.345.2压紧块的工艺安排.36结论.38致谢.39参考文献.40VCONTENTSAbstract.IIChapter1Introduction.11.1Domesticandinternationalcurrentsituationofscienceandtechnology.11.1.1Domesticandoverseasstatus.11.2Purposeandsignificanceofthetheme.21.3Themainresearchcontents.3Chapter2Bendingofproductpartsdiagram.4Chapter3Bendingmachinedesignprincipleandmechanismanalysis.63.1Bendingmachinedesignprincipleanalysis,comparison,determinethe.63.2Bendingmachinestructureschemeanalysis,determinethe.7Chapter4Bendingmachinedesigncalculationandstructure.94.1Bendingforcecalculation.94.2Blankholderforcecalculation.104.2.1Thepressblockdesign.104.2.2Blankholderforcecalculation.114.2.3Thepressingblockcenterpositiondetermination.124.3Aforceanalysis.134.3.1Housingandrelatedpartsparameters.134.3.2Aforceanalysis.154.4Cylinderselection.224.4.1Theselectionofpressurecylinder.224.4.2Theselectionofpressurecylinder.234.5Thedesignofhydraulicsystem.294.5.1Loadanalysis.294.5.2Executiveelementtodeterminem