变速箱机构座设计

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1、变速箱机构座工艺及夹具设计摘　要伴随着一波又一波的购车热，中国汽车业十分火热，同时带动了作为主要汽配行业--变速箱产业的发展。改进工艺降低生产成本成为一种必然。基于此种原因，本文就传统的变速机构座进行分析，优化工艺规程设计，并对加工过程中的机床夹具进行了优化设计。工件加工的工艺规程设计和夹具设计是本次设计的重点。本文对变速机构座进行了介绍，利用AutoCAD软件绘制相关的零件图。对变速机构座客体进行工艺性分析，合理选择确定了工件主要加工表面的加工方法，制定了工艺路线。并认真的作了相关工序的科学计算。最后，根据相关工作结果，运用AutoCAD中的块属性功能绘制并填

2、写机械加工工艺过程卡和工序卡。本文作者还进行了机床的夹具设计。结合工件的加工工艺要求，对工件的装夹性能行了分析，经过分析论证，得出工件定位采用典型的“一面两销”定位方式。夹紧操作时采用铰链压板进行压和缩紧螺母配合的夹紧机构。基于加工时的工艺特性，夹具采用翻转式结构。其次，根据夹具的结构特性绘制零件图。由于本次设计的要求，对夹具进行了三维实体造型。Pro/Engineer（简称Pro/E）是当前世界上最先进和紧密集成的、面向机械制造行业的CAD/CAE/CAM高端软件。本次设计是基于软件Pro/E5.0版的实体建模模块,对夹具体进行三维实体造型。关键词：变速机构座

3、；工艺过程；夹具；工序；三维造型千万不要删除行尾的分节符，此行不会被打印。在目录上点右键“更新域”，然后“更新整个目录”。打印前，不要忘记把上面“Abstract”这一行后加一空行IProcessandfixturedesignoftransmissionmechanismAbstractAlongwiththecarbuyingheatwaves,Chineseautomobileindustryisveryfiery,alsoledtothedevelopmentofgearboxindustryasmainautopartsindustry.Improve

4、dprocesstoreduceproductioncosthasbecomeanecessity.Forthisreason,thispaperanalysesthetransmissionmechanismofthetraditionalseat,optimizationofprocessplanning,andtheoptimizeddesignofthemachinetoolfixtureformachiningprocess.Workpiecemachiningprocessdesignandfixturedesignisthefocusofthisd

5、esign.Thispaperintroducesthetransmissionmechanism,andaccordingtothesurveyingandmappingresults,drawtherelevantpartsofthemapusingAutoCADsoftware.Analyzethetransmissionmechanismbaseobject,choosingthereasonableprocessingmethodmainlymachiningsurfaceoftheworkpieceisdetermined,theprocessrou

6、te.Andseriouslytheprocessofscientificcomputing.Finally,accordingtotheresultsofrelevantwork,usingblockattributefunctioninAutoCADtodrawandfillinthemachiningprocesscardandprocesscard.Inthispaper,theauthorhasalsocarriedonthefixturedesignofmachinetool.Requestaccordingtotheprocessingofthew

7、orkpiece,theworkpiececlampingperformanceareanalyzed,throughanalysisanddemonstration,theworkpiecepositioningusingthetypical"twosellsatthesameface"positioning.Theclampingoperationusingthehingeplateclampingpressureandtighteningnutmatched.Basedonthecharacteristicsofmachiningprocess,fixtu

8、rewithturnov