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四川理工学院毕业设计典型零件（齿轮油泵泵体）的工艺及工装设计学生：学号：专业：班级：指导教师：四川理工学院机械工程学院二0一一年六月四川理工学院毕业设计（论文）任务书设计（论文）题目：典型零件（齿轮油泵泵体）的工艺及工装设计学院：机械工程学院专业：机械设计自造及其自动化班级：学号：学生：指导教师：接受任务时间2011.3.1教研室主任（签名）院长（签名）1．毕业设计（论文）的主要内容及基本要求设计条件：零件年产量100000件，一般中型企业。①．查阅和收集设计资料②．绘制泵体零件图及零件毛坯图，并完成其工艺分析③．编制机械加工工艺规程④．指定工序的夹具及其零件设计⑤．编写设计说明书2．指定查阅的主要参考文献及说明①．《机械加工工艺人员设计手册》②．《机床夹具设计手册》③．《金属切削机床设计手册》④．《机械零件设计手册》⑤．《机械制造工序学》3．进度安排设计（论文）各阶段名称起止日期1查阅和收集设计资料并撰写开题报告2011.3.1-2011.3.152绘制泵体零件图及毛坯图，并完成其工艺分析2011.3.16-2011.3.223编制机械加工工艺规程2011.3.23-2011.4.34夹具及其零件设计及编写设计说明书2011.4.4-2011.5.315准备毕业答辩2011.6.1-2011.6.10四川理工学院毕业设计（论文）I摘要在机械制造的机械加工、检验、装配、焊接和热处理等冷热工艺过程中，使用着大量的夹具，用以安装加工对象，使之占有正确的位置，以保证零件和产品的质量，并提高生产率。在机床上加工工件时，为了保证加工精度，必须正确安装工件，使其相对机床切削成形运动和刀具占有正确的位置，这一过程称为“定位”。为了不因受切削力、惯性力、重力等外力作用而破坏工件已定的正确位置，还必须对其施加一定的夹紧力，这一过程称为“夹紧”。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。因此，专用夹具的设计是一项重要生产准备工作，每一个从事加工工艺的工装设计人员，都应该掌握有关夹具设计的基础知识。关键词：机械制造；通用夹具；专用夹具；钻床夹具；齿轮泵摘要IIABSTRACTAtthemachinemanufacturemachine-finishing,theexamination,theassembly,theweldingandheattreatmentandsooninthecoldhottechnologicalprocess,areusingthemassivejigs,withinstallstheprocessingobject,enableittoholdthecorrectposition,guaranteesthecomponentsandtheproductquality,andenhancementproductionefficiency.Processestheworkpiecewhentheenginebed,inordertoguaranteetheprocessingprecision,mustcorrectlyinstalltheworkpiece,causesitsrelativeenginebedcuttingformingmovementandthecuttingtoolholdsthecorrectposition,thisprocessandsoonthegravityisnotdestroyedtheworkpiecealreadythecorrectpositionwhichdecides,butalsomustcertainlyexerttoitclampstobecalled”theinstallment”.Usesforontheenginebedtocompletetheworkpiecetoinstallthedutytheimportantcraftequipment,isineachkindofjigwidelyapplies”theenginebedjig”.Enginebedjigtypeverymany,amongtheusescopebroadestgeneraljig,thespecificationsizearemanyhasstandardized,andhasespecialtythefactorytocarryontheproduction.Butwidelyusesinthevolumeproduction,speciallyunitclampwhichservesforsomeworkpieceprocessingworkingprocedure,thenneedsvariousfactoriesindependentlytodesignthemanufactureaccordingtotheworkpieceprocessingcraft.Therefore,theunitclampdesignthemanufactureaccordingtotheworkpieceprocessingcraft.Therefore,theunitclampdesignidanimportantproductionpreparatorywork.eachisengagedintheprocessingcrafttheworkclothesdesignpersonnel,allshouldgrasptheelementaryknowledgewhichtherelatedjigdesignKeywords:machinery,commonfixture,specialfixture,drillingfixture,四川理工学院毕业设计（论文）1目录摘要................................................................................................................................................................IAbstract.....................................................................................................................................................II目录...............................................................................................................................................................1第一章绪论.............................................................................................................................................11.1机械加工工艺概述及发展趋势............................................................................................................11.2机床夹具的概述及发展趋势.................................................................................................................1第二章齿轮泵的工艺分析..................................................................................................................22.1齿轮泵的应用........................................................................................................................................22.2确定毛坯的种类和生产类型.................................................................................................................32.3毛坯尺寸、机械加工余量的确定........................................................................................................3第三章工艺设计....................................................................................................................................53.1基准的选择.............................................................................................................................................53.1.1精基准的选择..............................................................................................................................53.1.2粗基准的选择..............................................................................................................................53.1.3机械加工工艺顺序.............................................................................................................................53.2工艺方案.................................................................................................................................................53.1工序尺寸的确定....................................................................................................................................7第四章确定切削用量与时间定额...................................................