斗笠式刀库送刀装置改进

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1、摘要根据销售反馈信息总结的数据，斗笠式刀库换刀气缸的故障率，占到刀库整体故障率的70%。通过对几种与换刀气缸运动方式相似的机构进行对比，得出新式凸轮式代替的换刀装置。根据换刀凸轮的工作机理进行分析，确定了修正正弦曲线作为凸轮运动曲线。初步确定运动参数，并进行压力角计算，得出37.9°，满足直动凸轮设计基本要求。对整个刀库系统进行受力分析，得出凸轮的受力情况，轨道接触面最大受力为173N，所需最大功率为78W，最大转矩为49.7NM。通过赫兹公对接触面进行强度校核，得出σ=238MPa，小于所选材料45钢的极限应力。得

2、出此方案符合设计要求的结论。最后运用solidworks-simulation进行有限元分析，进一步佐证了此方案的可行性。关键词：刀库；凸轮；修正正弦曲线；有限元分析AmeliorationofAutomaticToolChangeDeviceforArmlessTypeAbstractAccordingtothesalesfeedbackinformationsummarizeddata,ATCforarmlesstypecylinderfailurerate,accountingfor70%ofthewholeAT

3、Cfailurerate.Throughseveralandchangethetoolsofcylindermovementwaysimilarinstitutions,comparingthenewCAMtypeinsteadofthatofthechangetooldevice.AccordingtothechangeoftheworkingmechanismsofCAManalysisanddeterminedthefixedsinecurveasCAMmotioncurve.Preliminarydetermi

4、nemovementparametersandpressureAnglecalculated,37.9°,andsatisfythebasicrequirementforstraightmovingCAMdesign.AnalysistheATCsystem,itisconcludedthatthestressoftheCAM,thebiggestrailinterfacestressfor173N,themaximumpowerfor78W,maximumtorquefor49.7N.ThroughtheHertza

5、ndcheckintensityofinterface,itisconcludedthat,lessthan45steelmaterialsselectedtheultimatestress.Showthatthisschemecomplywiththedesignrequirements.Finallyusingsolidworks-simulationinfiniteelementanalysis,furtherillustratesthefeasibilityofthisplan.Keywords:Toolcha

6、nger；Cam；Amendatorysinecurve；FiniteelementanalysisDirectedby：Prof.SHENQingtaiA.EYANGYuApplicantforDoctordegree：BIANZeyu（AgriculturalEngineering）（CollegeofMechanicalandElectricalEngineering，InnerMongoliaAgriculturalUniversity,Hohhot010018,China）目录１引言.............

7、.................................................11.1选题的背景及意义...............................................11.2国内外的发展概况...............................................21.2.1国外发展概况.................................................21.2.2国内发展概况......................

8、...........................31.3刀库的发展趋势.................................................31.4本文的主要研究内容.............................................41.4.1本课题研究思路........