车床尾座套筒加工工艺规程及夹具设计设计说明书

摘要本次毕业设计针对车床尾座套筒工艺规程进行设计，涉及套筒的选材、确定毛坯和机械加工余量及工序尺寸与公差、拟定工艺路线、选择工艺设备；并进行切削用量和时间定额的计算，填写机械加工工艺过程卡和机械加工工序卡片。为了保证加工质量，提高生产效率，对关键工序进行夹具设计。本文对夹具的工作原理、作用、分类和组成做了简单概述；着重分析了工序特点和要求，根据结果确定定位方案，设计定位元件、夹紧机构、对刀元件和夹具体。因此，保证了加工精度和设计质量。关键词：车床尾座套筒；工艺规程设计；夹具设计；生产规划AbstractThispapercarriesonthedesigninviewofthetailstocksleevetechnologicalprocess,involvestheselectionofthesleeve,thedeterminationofsemi-finishedmaterials,themachiningallowance,theworkingproceduresizeandthecommondifference.Idrawupthesleeveroute,andchoosetheprocessunit.AndthenIcarryonthecomputationofthecuttingspecificationsandthetimenorm,nextIfillabove-mentionedresultsinmachine-finishingtechnologicalprocesscardandthemachine-finishingworkingprocedurecard.Inordertoguaranteetheprocessingqualityandenhancetheproductionefficiency,Icarryoutthejigdesigntotheessentialworkingprocedure.InthispaperIhavemadethesimpleoutlinetotheoperatingprinciple,thefunction,theclassificationandthecompositionofthejig.Ihavealsoemphaticallyanalyzedthecharacteristicandtherequestoftheworkingprocedure,determinedthelocalizationplanaccordingtotheresult,anddesignedthelocalizationpart,theclamporganization,theguidingcomponentandthejigbody.Therefore,theprocessingprecisionandthedesignqualityhavebeenguaranteed.Keywords:tailstocksleeve；Technologicalprocessdesign；Jigdesign；ProductionplanI目录第1章绪论......................................................................................................................11.1车床尾座套筒加工技术现状及发展方向..............................................................11.2本课题研究的目的、意义......................................................................................21.3课题的主要内容......................................................................................................3第2章车床尾座套筒的机械加工工艺规程设计..............................................................52.1车床尾座套筒的工艺分析及生产类型的确定......................................................52.1.1车床尾座套筒概述........................................................................................52.1.2车床尾座套筒零件的技术要求....................................................................52.1.3确定车床尾座套筒的生产类型和工艺特征分析........................................62.2车床尾座套筒的材料和毛坯确定..........................................................................72.2.1车床尾座套筒毛坯材料、加工方法及技术要求........................................72.2.2车床尾座套筒毛坯的尺寸公差和机械加工余量........................................82.2.3绘制车床尾座套筒毛坯简图........................................................................92.3拟定车床尾座套筒工艺路线..................................................................................92.3.1定位基准的选择............................................................................................92.3.2表面加工方法的确定....................................................................................92.3.3加工阶段的划分..........................................................................................102.3.4加工工艺路线方案确定..............................................................................102.4机床设备及工艺装备的选用................................................................................112.4.1机床设备的选用..........................................................................................112.4.2工艺装备的选用..........................................................................................122.5加工余量、工序尺寸及其公差的确定................................................................132.6确定切削用量及时间定额....................................................................................142.6.1切削用量的计算..........................................................................................142.6.2时间定额的确定..........................................................................................162.7填写工艺文件........................................................................................................172.8工艺分析................................................................................................................19第3章机床夹具设计........................................................................................................213.1机床夹具设计概述................................................................................................213.1.1夹具的主要工作原理..................................................................................213.1.2夹具的作用..................................................................................................213.1.3机床夹具的分类..........................................................................................213.1.4专用机床夹具的组成..................................................................................223.2车床夹具设计........................................................................................................223.2.1问题的提出..................................................................................................223.2.2定位方案及定位元件选择和设计..............................................................223.2.3确定夹紧方式、设计夹紧机构..................................................................243.2.4设计对刀元件、连接元件及夹具体..........................................................24