西安航空职业技术学院毕业设计论文PAGE\*MERGEFORMAT21提供全套毕业设计，欢迎咨询摘要本次设计内容涉及了机械制造工艺及机床夹具设计、金属切削机床、公差配合与测量等多方面的知识。接头加工工艺规程及其钻Ф8孔的夹具设计是包括零件加工的工艺设计、工序设计及专用夹具的设计三部分。在工艺设计中要首先对零件进行分析，了解零件的工艺再设计出毛坯的结构，并选择好零件的加工基准，设计出零件的工艺路线；接着对零件各个工步的工序进行尺寸计算，关键是决定出各个工序的工艺装备及切削用量；然后进行专用夹具的设计，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。关键词：工艺、工序、切削用量、夹紧、定位、误差。ABSTRCTThisdesigncontenthasinvolvedthemanufacturecraftandtheenginebedjigdesign,themetal-cuttingmachinetool,thecommondifferencecoordinationandthesurveyandsoonthevariousknowledge.Thereductiongearboxbodycomponentstechnologicalprocessanditstheprocessing¢140holejigdesignisincludesthecomponentsprocessingthetechnologicaldesign,theworkingproceduredesignaswellastheunitclampdesignthreeparts.Mustfirstcarryontheanalysisinthetechnologicaldesigntothecomponents,understoodthecomponentsthecraftredesignsthesemifinishedmaterialsthestructure,andchoosesthegoodcomponentstheprocessingdatum,designsthecomponentsthecraftroute;Afterthatiscarryingonthesizecomputationtoacomponentseachlaborstepofworkingprocedure,thekeyisdecideseachworkingprocedurethecraftequipmentandthecuttingsepcfications;Thencarriesontheunitclampthedesign,thechoicedesignsthejigeachcompositionpart,likelocatesthepart,clmpsthepart,guidesthepart,toclampconcreteandtheenginebedconnectionpartaswellasotherparts;Positionerrorwhichcalculatesthejiglocateswhenproduces,analyzesthejigstructuretherationalityandthedeficiency,andwilldesigninlaterpaysattentiontotheimprovement.Keywords:Thecarft,theworkingprocedure,thecuttingsepcifications,clamp,thelocalization,theerror目录TOC\o"1-4"\h\z\uHYPERLINK\l"_Toc405725235"摘要PAGEREF_Toc405725235\h1HYPERLINK\l"_Toc405725236"序言PAGEREF_Toc405725236\h4HYPERLINK\l"_Toc405725237"1、零件的分析PAGEREF_Toc405725237\h5HYPERLINK\l"_Toc405725238"1.1.零件的作用PAGEREF_Toc405725238\h5HYPERLINK\l"_Toc405725239"1.2零件的工艺分析PAGEREF_Toc405725239\h5HYPERLINK\l"_Toc405725240"2、工艺规