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尾座体零件机械加工工艺及镗孔Φ80H7夹具设计论文[带图纸].docx

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尾座体零件机械加工工艺及镗孔Φ80H7夹具设计论文[带图纸].docx

本科毕业设计论文题目尾座体零件机械加工工艺及其典型夹具设计系别机电信息系专业机械设计制造及其自动化班级学生学号指导教师2013年5月10日Ⅰ尾座体零件机械加工工艺及其典型夹具设计摘要机械制造技术的发达程度突出反应了一个国家或地区的经济实力和综合国力,是一个国家生存、发展与繁荣所依赖的重要基础。本文对一尾座体零件进行加工工艺分析,并对相关工序设计专用夹具。本设计的基本思路是,首先对零件图进行分析,选择毛坯形式、公差及余量。再次是确定加工基准、工艺路线,选择工艺装备,设计各个工序的具体内容,确定切削用量及时间定额等。最后设计关键工序的夹具。合理选择加工基准,加工方法,选择设计出夹具的各个组成部件,如定位元件、夹紧元件、引导元件、夹具体与机床的连接部件以及其它部件计算出夹具定位时产生的定位误差,分析夹具结构的合理性与不足之处,并在以后设计中注意改进。设计的夹具应结构简单,省时省力,装夹方便,并且对相似的零件的加工有通用性。关键词工艺工序切削用量夹紧定位误差ⅡTheTailstockBodyPartsMachiningProcessandItsTypicalFixtureDesignAbstractThelevelofthedevelopmentofthemanufacturingtechnologyisstronglyrespecttheeconomicstrengthandnationalstrengthofacountry.Theexistenceandthedevelopmentofacountrydependsonthemanufacturingtechnology.Thispapermainlydiscussesthemachiningtechnologyofaflangeanddesignesthesetoolsusedformachiningtheflange.Thebasicprodcerofthepaperisthatfirstanalyingthedetaildrawingoftheflange,choosingtheblank,thesizesandthebasis,second,choosingthemachinerouting,choosingtoolsformachiningtheflange,designingdetailsoferevyprocedure,third,designthefixture.Allthesechoosesmustberighttomakesuretheflangemeetingthetechnicalrequirements.Thelevelofthedevelopmentofthemanufacturingtechnologyistheresponseoftheeconomicstrengthandnationalstrengthofacountry.Theexistenceandthedevelopmentofacountrydependsonthemanufacturingtechnology.Allthesechoosesmustberighttomakesuretheflangemeetingthetechnicalrequirements.Thefixtureshouldsavetimeandforce,andshouldhasgenerality.Thefixtureshouldsavetimeandforce,andshouldhasgenerality.KeyWordsTheprocerstheworkingprocedurethecuttingspecifications,clampthelocalizationtheerrorⅢ目录1绪论.........................................................................................................................11.1题目背景和研究意义..........................................................................................11.2本课题研究的主要内容......................................................................................12零件的分析...........................................................................................................22.1零件的作用..........................................................................................................22.2零件的工艺分析..................................................................................................23工艺规程设计.......................................................................................................33.1确定零件的生产类型..........................................................................................33.2确定毛坯的制造形式..........................................................................................33.3基面的选择的选择..............................................................................................33.4制定工艺路线......................................................................................................43.5机械加工余量、工序尺寸及毛坯尺寸的确定..................................................53.6切削用量及基本时间的确定..............................................................................63.6.1工序Ⅲ的设计...............................................................................................63.6.2工序Ⅳ的设计...............................................................................................83.6.3工序Ⅴ的设计.............................................................................................103.6.4工序Ⅵ的设计.............................................................................................153.6.5工序Ⅶ的设计.............................................................................................184夹具的设计.........................................................................................................214.1夹具的概述........................................................................................................214.2夹紧装置的组成及设计要求............................................................................214.2.1动力源.........................................................................................................214.2.2中间传力机构.............................................................................................214.2.3夹紧元件.....................................................................................................224.3定位误差的分析与计算....................................................................................234.4夹具设计与操作的简要说明............................................................................234.4.1夹具体方式的确定.....................................................................................234.4.2夹具的精度要求.........................................................................................244.4.3夹具使用注意事项、保养及维护.............................................................244.5问题的提出........................................................................................................244.6夹具的设计........................................................................................................244.6.1定位基准的选择.........................................................................................25Ⅳ4.6.2铣削力计算.................................................................................................254.6.3.定位误差与分析.........................................................................................254.6.4夹具设计及操作的简要说明.....................................................................254.6.5夹具体的选择.............................................................................................254.6.6夹具体槽形.................................................................................................264.6.7夹紧装置及夹具体设计.............................................................................275结论.......................................................................................................................29参考文献...................................................................................................................30致谢............................................................................................................................31毕业设计(论文)知识产权声明....................................................................31毕业设计(论文)独创性声明.........................................................................32

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