资源描述:
《托辊管体止口专用夹具设计 毕业论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、托辊管体止口专用夹具设计摘要:托辊是带式输送机的主要部件之一,其作用是支撑输送带和带上的物料,减小允许阻力,并使带式输送机的垂度不超过一定限度,以保证输送机平稳运行。它的应用十分广泛,其生产属专业化大批量生产类型,那就要求其加工设备能满足大批量生产的要求。我们通过设计的夹具来实现托辊的大批量生产。托辊夹具用于一台同时加工四个工件的镗床上,并且能同时加工工件的两端,因此夹具必须满足四个工件的定位夹紧。夹具的最基本作用就是保证工件准确定位且夹紧以利于加工,由于托辊有不同的直径系列和不同的长度系列,因此此夹具必须在长度和直径方向可调,还必须保证在正确定位的基
2、础上夹紧,而且使各工件所受夹紧力相同。除了让夹具满足上述要求外,还应尽量使夹具快速准确定位夹紧,以节省辅助时间提高自动化程度,减轻劳动强度;尽量结构简单,操作方便。本设计中通过自动定心夹紧机构来让定位夹紧同步进行;利用液压系统实现四个工件的同时夹紧,该夹具有效的减少了工件加工的辅助时间,提高了加工效率。关键字:托辊;镗床;夹具;液压回路;自动定心夹紧机构16RollerTubeBodyCheckMouthSpecialJigDesignAbstract:Rolleristhemaincomponentofbeltconveyorone.Itsrolei
3、ssupportingconveyorbeltandbringmaterials,reduceresistance,andthatallowedthebeltconveyorsagdoesnotexceedacertainlimit,toensurethattheconveyorrunningsmoothly.Itusedwidely,itsproductionofspecializedhigh-volumeproductiontype,thatrequiresitsprocessingequipmentcansatisfythedemandforma
4、ssproduction.Wethroughthedesignoffixturetorealizethemassproductionofroller.Forawhilerollerfixtureofboringmachineprocessingfourworkpiece,andcanalsomachining,thereforefixtureatoppositeendsofthelocalizationoffourmustsatisfytheclampingworkpiece.Themostbasicroleisfixtureensureaccurat
5、eorientationandclampingworkpiece,favorstheprocessingofrollerhavedifferentbecauseofdifferentlengthanddiameterofseries,sothisfixturemustseriesinlengthanddiameterdirectionisadjustable,itmustbebasedonthecorrectorientation,andmakeeachclampingworkpiecebyclampingforcethatsame.Besidesma
6、kefixturefulfilltheaboverequirementsoutside,stillshouldmakefixturerapidaccuratepositioningclampingtosaveauxiliarytimeincreasedautomation,reducelaborintensity;Asfaraspossiblesimplestructure,convenientoperation.Thisdesignthroughself-centeringclampingagenciestomakepositioningclampi
7、ngsynchronously;Usinghydraulicsystematthesametime,therealizationofthefourworkpiececlamping,thisfixtureeffectivelyreducetheworkpiecemachiningauxiliarytime,improvethemachiningefficiency.Keyword:roller;Boring;Jig;Hydraulicloop;Self-centeringclampinginstitutions161绪论1.1托辊简介托辊是带式输送机的
8、主要部件之一,其作用是支撑输送带和带上的物料,减小允许阻力,并使带式输送机的垂度不超过一定限度