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当前位置:首页 > 机械/制造/汽车 > 机械/模具设计 > 车床法兰盘机械加工工艺及夹具设计
I摘要《机械制造工艺学》是机械专业的一门主要专业课,是以研究机械加工工艺技术和夹具设计为主技术学科,具有很强的实践性,要求学习过程中应紧密联系生产实践,同时它又具有很强的综合性。本次毕业设计的课题是CA6140车床法兰盘加工工艺规程及某一工序专用夹具设计,主要内容如下:首先,对零件进行分析,主要是零件作用的分析和工艺分析,通过零件分析可以了解零件的基本情况,而工艺分析可以知道零件的加工表面和加工要求。根据零件图提出的加工要求,确定毛坯的制造形式和尺寸的确定。第二步,进行基面的选择,确定加工过程中的粗基准和精基准。根据选好的基准,制订工艺路线,通常制订两种以上的工艺路线,通过工艺方案的比较与分析,再选择可以使零件的几何形状、尺寸精度及位置精度等技术要求得到合理的保证的一种工序。第三步,根据已经选定的工序路线,确定每一步的切削用量及基本工时,并选择合适的机床和刀具。对于粗加工,还要校核机床功率。最后,设计第三道工序—钻法兰盘孔的夹具。先提出设计问题,再选择定位基准,然后开始切削力、夹紧力的计算和定位误差的分析。然后把设计的过程整理为图纸。通过以上的概述,整个设计基本完成。关键词:法兰盘;加工工艺;夹具设计IIAbstractMechanicalmanufacturingtechnologyisamajorcourseofmechanicalengineering,studyingmechanicalprocessingtechnologyandfixturedesignisgivenprioritytotechnologysubject,hasastrongpracticality,requirementsinthelearningprocessshouldbecloselycontactwithproductionpractice,atthesametimeithasastrongcomprehensive.ThesubjectofthisgraduationprojectisthatCA6140latheringflangeprocessingtechnologyrulesandspecial-purposejigofacertainprocessaredesigned,themaincontentisasfollows:Firstofall,analyzingthispart,itismainlyanalysisofthefunctionofthepartandcraftanalysistothepart,throughpartanalyzedcanfindoutaboutbasicsituationofpart,andcraftanalyzedmayknowtheprocessingsurfaceofthepartandisitrequiretoprocess.Theprocessingdemandputforwardaccordingtothepartpicture,confirmthemanufactureformoftheblankandsurenessofthesize.Thesecondstep,carryonthechoicethebase,confirmthickdatumandprecisedatumintheprocessingcourse.Accordingtothedatumchosen,makethecraftroute,usuallymakethecraftrouteofmorethantwokinds,withanalyzingthroughthecomparisonofthecraftscheme,andthenchoosingbeabletomakesuchspecificationrequirementsastheprecisionofgeometryform,sizeofthepartandprecisionofposition,etc.getakindofprocessoftherationalassurances.Thethirdstep,accordingtothealreadyselectedprocessroute,confirmforeverystepsofcuttingconsumptionandbasicman-hour,choosesuitablelatheandcutter.Toroughmachining,willcheckthepowerofthelathe.Finally,designthethirdprocess-thejiggettingintotheholeoftheringflange.Putforwardthequestionofdesigningfirst,andthenchoosetoorientthedatum,thenthecalculationthatbeginstocutstrength,clampstrengthandanalysisofthelocalizationerror.Thenputthedesigncourseinorderasthedrawing.Throughthesummaryoftheabove,designandfinishbasicallyentirely.Keywords:Flange;Processthecraft;ThetongsdesignIII目录摘要.....................................................................................................................................IAbstract.....................................................................................................................................II第1章引言..............................................................................................................................11.1概述.............................................................................................................................11.2课题的发展趋势..........................................................................................................11.3课题研究的内容与意义.............................................................................................21.3.1课题研究的内容..............................................................................................21.3.2课题的意义......................................................................................................2第2章零件的分析..................................................................................................................42.1零件的工艺分析.........................................................................................................42.2确定毛坯的制造形式.................................................................................................52.3基面的选择.................................................................................................................52.4制定工艺路线.............................................................................................................52.5机械加工余量,工序尺寸及毛坯尺寸的确定.........................................................82.6确定切削用量及基本工时.......................................................................................122.6.1工序Ⅰ............................................................................................................122.6.2工序Ⅱ...........................................................................................................192.6.3工序Ⅲ...........................................................................................................312.6.4工序Ⅳ...........................................................................................................362.6.5工序Ⅴ...........................................................................................................402.6.6工序Ⅵ...........................................................................................................422.6.7工序Ⅶ...........................................................................................................442.6.8工序Ⅷ...........................................................................................................44第3章夹具设计....................
本文标题:车床法兰盘机械加工工艺及夹具设计
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