水泵体零件工艺及工装设计论文[带图纸].pdf -- 45 元

编号无锡太湖学院毕业设计（论文）题目水泵体零件工艺及工装设计信机系机械工程及自动化专业学号学生姓名指导教师（职称副教授）（职称）2013年5月25日无锡太湖学院本科毕业设计（论文）诚信承诺书本人郑重声明所呈交的毕业设计（论文）水泵体零件工艺及工装设计是本人在导师的指导下独立进行研究所取得的成果，其内容除了在毕业设计（论文）中特别加以标注引用，表示致谢的内容外，本毕业设计（论文）不包含任何其他个人、集体已发表或撰写的成果作品。班级机械91学号0923019作者姓名2012年11月23日III摘要在机床上加工工件时，定位和夹紧的全过程称为安装。在机床上用来完成工件安装任务的重要工艺装备，就是各类夹具中应用最为广泛的机床夹具。机床夹具的种类很多，其中，使用范围最广的通用夹具，规格尺寸多已标准化，并且有专业的工厂进行生产。而广泛用于批量生产，专为某工件加工工序服务的专用夹具，则需要各制造厂根据工件加工工艺自行设计制造。本设计的主要内容是设计钻床夹具，需要对泵体上表面4xM6的四个螺纹孔进行钻削。泵体零件上往往都有各种不同用途和不同精度的孔需要加工。在机械加工中，孔的加工量所占比例较大，其中钻头、扩孔钻、铰刀、镗刀等定尺寸刀具加工占相当多数。这时，除了要保证孔的尺寸精度外，还要达到孔的位置精度要求。在单件小批量生产中，用划线后找正孔轴线位置方法加工。在批量生产中一般都采用钻床夹具与镗床夹具，钻床夹具又称钻模，镗床夹具又称镗模，通过钻套、镗套引导刀具进行加工可准确地确定刀具与工件之间的相对位置。关键词通用夹具专用夹具钻床夹具泵体IVAbstractInthemachinemachining,positioningandclampingprocesscalledinstallation.Themachineusedtocompletethetaskofworkpieceinstallationofprocessequipment,isanimportantfixtureinthemostwidelyusedthemachinetoolsfixture.Therearemanykindsofthemachinetoolsfixture,amongthem,usethewidestrangeofgeneralfixture,size,andtherehasbeenmorestandardizedprofessionalfactoryproduction.Andwidelyusedinmassproduction,designedforaworkpiecemachiningprocessesandspecialfixtureservicetothefactoryaccordingtotheworkpiecemachiningprocesstodesignandmanufacture.Thedesignofthemaincontentisboringandmillingmachinefixturedesignjigs,needtopumpbodysurface4xM6ofthefourthreadedholefordrilling.Pumpbodypartsareusuallydifferentpurposesandaccuracyoftheholemachining.Inmachining,theholeofmanufactured,amongwhichtheproportionofdrilling,reaming,reamer,boringtoolsforsizeofsuchasizablemajority.Atthistime,excepttoensuretheaccuracyofthesizeoftheholehole,butalsoachievethepositionprecisionrequirements.Insinglesmallbatchproduction,usecrossedforpositiveholeaxispositionafterprocessingmethods.Inbatchproductioningeneralbydrillingandboringfixture,drillingfixtureanddiamondfixture,boringfixtureandsay,boring,boringsetbydrillingtoolsforprocessingguidecanaccuratelydeterminetoolandtherelativepositionbetweentheworkpiece.KeywordGeneralfixtureSpecialjigDrillingfixturePumpbodyV目录摘要...........................................................................................................................................IIIAbstract..........................................................................................................................................IV目录.................................................................................................................................................V1绪论.............................................................................................................................................11.1课题的背景和意义...........................................................................................................11.2机床夹具概述...................................................................................................................11.2.1机床夹具.................................................................................................................11.2.2机床夹具的功能.....................................................................................................11.2.3机床夹具在机械加工中的作用.............................................................................21.2.4机床夹具的发展趋势.............................................................................................22水泵泵体的工艺规程设计.........................................................................................................42.1零件的作用.......................................................................................................................42.2零件图的审核...................................................................................................................42.2.1分析零件图.............................................................................................................42.2.2零件的结构工艺性分析.........................................................................................52.3生产过程和工艺过程.......................................................................................................52.3.1生产过程.................................................................................................................52.3.2工艺过程.................................................................................................................62.4工艺规程...........................................................................................................................72.5零件的工艺分析...............................................................................................................72.6选择毛坯...........................................................................................................................82.7坯料尺寸公差与机械加工余量的确定...........................................................................82.8确定毛坯尺寸...................................................................................................................82.9孔和平面加工分析...........................................................................................................82.9.1孔和平面的加工顺序.............................................................................................82.9.2钻孔加工方案选择.................................................................................................82.9.3选择定位基准.........................................................................................................92.10基面的选择...................................................................................................................102.11零件表面加工方法选择................................................................................................102.12各工序间加工余量........................................................................................................112.13制定工艺路线...............................................................................................................122.14切削用量的计算...........................................................................................................132.14.1铣上平面工序切削用量的计算.........................................................................142.14.2铣下平面工序切削用量的计算.........................................................................142.14.3铣左端面工序切削用量的计算.........................................................................152.14.4铣右端面工序切削用量的计算.........................................................................152.14.5钻Ø48孔工步切削用量的计算..........................................................................16