本科毕业论文（设计）机械设计制造及其自动化摘要摘要多层热压机是生产胶合板、刨花板、中密度纤维板等人造板的主要设备。目前设备制造厂生产的热压机已基本定型，为了改进热压机的结构性能和降低制造成本，本文主要对五层侧压式热压机结构进行了设计,并对热压机的重要部件下托板的结构、强度和刚度进行了设计分析和计算,使下托板在结构上更加合理,降低了材料和能源消耗,提高了生产率。设计主要结合现有的设计理念，在符合设计要求的前提下，设计时热压机的机架整体上主要采用了钢板焊接闭式结构，这种结构制造方便无需大型加工设备，并且，选材主要使用了工字钢、角钢等常用材料，使用钢板焊接的加工工艺，因而，生产工艺性较好，一般机械厂均能制造。设计中主要使用了CAD、Pro\E等工程制图软件，使用了Pro\E软件进行受力分析。关键词：侧压式，热压机，结构设计，受力分析IAbstractAbstractThemulti-layeredhotpressistheproductionplywood,theshavingboard,buildingboardandsoondensityfiberboardmajorinstallations.Atpresenttheequipmentfactoryproduction'shotpresshasfinalizedbasically,toimprovehotpress'sstructureperformanceandreducetheproductioncost,thisarticlemainlyhascarriedonthedesigntofivesidethrusttypehotpressstructure,andtohotpress'simportantpartundercarrier'sstructure,theintensityandtherigidityhascarriedontheprojectanalysisandcalculates,causesthecarriertobemorereasonableinthestructure,reducedthematerialandtheenergyconsumption,raisedtheproductivity.Thedesignmainunionexistingdesignidea,inconformstounderthedesignrequirementspremise,inthedesigninpress'srackwholehasmainlyusedthesteelplateweldingclosedtyperack,thiskindofstructuremanufactureconveniencedoesnotneedthelarge-scaleprocessingequipment,and,theselectionhasmainlyusedtheI-steel,theanglesteelandsooncommonlyusedmaterial,usesprocessingcraftwhichthesteelplatewelds,thus,theproductiontechnologycapabilityisgood,generallythemachineshopcanmake.InthedesignhasmainlyusedCAD,engineeringdrawingsoftwaresPro\Eandsoon,usedthesoftwarePro\Etocarryonthestressanalysis.Keywords:lateralpressuretype,thermal-pressingmachine,structuraldesign,stressanalysisII目录目录1.引言............................................................11.1五层侧压式热压机的发展概况及现状............................11.2热压机的特点................................................21.3热压机的发展带来的机遇和挑战................................32.热压机的结构设计................................................42.1框架结构....................................................52.2柱塞结构....................................................62.3上托板结构..................................................62.4下托板结构..................................................72.5平衡机构简要设计............................................82.5.1工作原理.................................................82.5.2齿条的设计..............................................112.5.3键的选择................................................112.6轴承的选取.................................................122.7侧压缸支架结构.............................................122.8侧压缸螺栓设计校核.........................................133.热压机主要部件的受力分析.......................................153.1立柱的设计校核.............................................153.2上托板的设计校核...........................................153.3下托板的结构设计...........................................213.4下横梁底板受力分析.........................................24附录......................
