气门摇杆轴支座毕业设计

毕业设计（论文）题目摇杆轴支座工艺规程与镗夹具设计姓名学号30503133专业班级机自0501所在学院指导教师（职称）二○○九年五月二十二日浙江大学城市学院毕业论文摘要I摇杆轴支座工艺规程与镗夹具设计【摘要】本次毕业设计课题是摇杆轴支座加工工艺规程与专用镗孔夹具设计，设计中综合应用了工程图学，机械设计，机械制造工程学，机械几何精度设计等相关课程知识。本毕业设计在摇杆轴支座工艺规程设计过程中，详细的分析了摇杆轴支座的加工工艺，通过工艺方案的比较与分析选择得到了符合技术要求的工序，形成了机械加工工艺过程卡和机械加工工序卡。本设计进行了镗孔专用夹具的设计，阐述了定位方案的选择、夹紧方案的确定、夹具体与镗模设计，运用AutoCAD完成了此专用夹具的装配图和夹具体的零件图。此外，还进行了摇杆轴支座零件的和镗夹具主要零件三维造型设计。【关键词】零件加工，工艺规程，镗孔，专用夹具，CAD浙江大学城市学院毕业论文AbstractIIDesignofProcessandBoringFixtureofRockerShaftPedestal【Abstract】Thegraduationdesigntaskisdesignofprocessandboringfixtureofrockershaftpedestal.Thisdesigniscomprehensivelyappliedtheknowledgeofcorrelatedcurriculumsuchasengineeringgraphic,mechanicaldesign,mechanicalmanufacturing,engineeringandmechanicalgeometryprecisiondesign.Thisgraduationdesigndetailedanalysisprocessofrockershaftpedestal.Processwhatisinkeepingwithtechnicalrequirementsisselectionthroughcomparingandanalyzingprocessscheme,toobtainthemachineryprocesscardandmechanicalprocessescard.Thisdesigndesignedboringfixtureofrockershaftpedestal,expoundsaboutthepositioningschemeselection,determinetheclampingschemes.Boringmoulddesignandfixturepedestaldesign.UseAutoCADcompletedtheassemblyofthisspecialfixtureandpartdrawingoffixturebase.Inaddition,the3-Dmodelingdesignsofthepartoftherockershaftpedestal.【KeyWords】Partsprocessing，Processflow，Internalboring，Dedicatedfixture，CAD,浙江大学城市学院毕业论文目录III目录第1章绪论...........................................................................................................................11.1制工艺与夹具设计的发展概况...............................................................................11.2机制工艺与夹具设计相关技术的国内外现状.......................................................11.3选题意义和关键问题...............................................................................................21.3.1选题的背景...................................................................................................21.3.2选题意义........................................................................................................21.3.2关键问题........................................................................................................3第2章机械加工工艺与夹具设计概述...............................................................................42.1机械加工工艺过程中的基本概念..........................................................................42.2机械加工工艺规程设计的基本准则.......................................................................42.3机床夹具概述...........................................................................................................62.4工件在夹具中的定位............................................................................................72.5工件在夹具中的夹紧...............................................................................................7第3章摇杆轴支座机械加工工艺规程设计.......................................................................93.1零件的图纸与工艺分析...........................................................................................93.1.1零件的作用....................................................................................................93.1.2零件的工艺分析............................................................................................93.2工艺规程定性设计.................................................................................................103.2.2生产类型与毛坯制造方法的确定..............................................................103.2.3定位基准的选择..........................................................................................103.2.4工艺路线的拟定...........................................................................................113.3工艺规程定量设计.................................................................................................133.3.1机械加工余量、工艺尺寸及毛坯尺寸的确定..........................................133.3.2切削余量及基本工时的确定......................................................................143.4摇杆轴支座机械加工工艺过程..........................................................................183.4.1摇杆轴支座机械加工工艺过程卡..............................................................193.4.2摇杆轴支座机械加工工序卡......................................................................20第4章摇杆轴支座专用镗孔夹具设计...........................................................................314.1镗夹具的结构形式与设计要点。.........................................................................314.1.1镗床夹具的典型结构形式..........................................................................314.1.2镗床夹具的设计要点..................................................................................31浙江大学城市学院毕业论文目录IV4.2摇杆轴支座专用镗孔夹具总体结构方案.............................................................324.3定位元件与夹紧装置的设计.................................................................................334.3.1定位元件.....................................................................................................334.2.2夹紧装置的设计..........................................................................................334.4镗模与夹具体的设计.............................................................................................344.5夹具工作能力的计算..............................