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柴油机汽缸体两端面铣削专机设计说明书[带图纸].doc

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柴油机汽缸体两端面铣削专机设计说明书[带图纸].doc

编号无锡太湖学院毕业设计(论文)题目柴油机汽缸体两端面铣削专机设计信机系机械工程及自动化专业学号学生姓名指导教师(职称副教授)(职称)2013年5月25日无锡太湖学院本科毕业设计(论文)诚信承诺书本人郑重声明所呈交的毕业设计(论文)柴油机汽缸体两端面铣削专机设计是本人在导师的指导下独立进行研究所取得的成果,其内容除了在毕业设计(论文)中特别加以标注引用,表示致谢的内容外,本毕业设计(论文)不包含任何其他个人、集体已发表或撰写的成果作品。班级机械92学号0923070作者姓名2013年5月25日II摘要本课题是柴油机汽缸体两端面铣削专机设计,主要是完成机床夹具设计、组合机床总体设计、组合机床主轴箱设计。根据柴油机汽缸体的结构特点、加工部位、尺寸精度、表面粗糙度及生产率等要求,确定该机床为卧式组合机床考虑工件尺寸精度,表面粗糙度,切削的排除生产率等因素,选用硬质合金不重磨式面铣刀根据工件的尺寸、特点及其材料选择切削用量然后,再经过切削用量来确定组合机床的通用部件最后进行组合机床的总体设计。由于是铣削柴油机汽缸体的两端面,则夹具的设计可以采用一面两销定位,手动夹紧,一次装夹加工汽缸体两端面,保证加工精度,提高生产率根据工作将受到切削力来计算夹紧力再根据夹紧力来选择确定夹紧装置的专用部件。在设计之中,尽量使用通用件,减少制造成本,增加经济效益。通过本次设计可以达到的效果是所设计的夹具及主轴箱能满足所需的质量要求,使用时安全可靠,拆装方便,易于维修。关键词组合机床汽缸体铣刀夹具IIIAbstractThistopiciscalledadieselengineatbothendsofthecylinderblockfacemillingplanedesign,mainlyincludingthecompletionofjigsandfixturesdesign,thecombinationoftheoverallmachinedesignandmachinetoolspindleboxdesign.Accordingtothestructuralcharacteristicsofthedieselenginecylinderblock,theprocessingsite,dimensionalaccuracy,surfaceroughnessandproductivityrequirements,itcanbedeterminedthatthemachineisahorizontalcombinationofmachinetoolsconsideringtheaccuracyoftheworkpiecedimensions,surfaceroughness,cuttingnegativefactorssuchasproductivity,thehardalloyedthrowawaygrindingfacemillingischosencuttingamountisselectedaccordingtothesizeoftheworkpiece.characteristicsandmaterialselectionthen,bythecuttingamountwedeterminethecombinationofgeneralmachinepartsFinally,theoveralldesignofthemachineiscarriedout.Duetobothendfacesofthemillingdieselenginecylinderblock,thedesignofthefixturecanemploythetwosellspositioning,manualclamping,afixtureworkedbothendsofthecylinderblocksurfacetoensureaccuracyandimproveproductivityclampingforceswillbecalculatedthroughthecuttingforceanddeterminespecificpartsoftheclampingdeviceaccordingtotheclampingforce.Insuchadesign,oneshouldmakeuseofcommonpartstoreducemanufacturingcostsandincreaseeconomicbenefits.Thedesigncanachievetheeffectthatthedesignofthefixtureandspindleboxcanmeetthequalityrequirementsanditguaranteessafeandreliableuse,easydisassemblyandeasymaintenance.KeywordscombinationmachinetoolsThecylinderbodyMillingcutterfixtureV目录摘要............................................................................................................................................IIAbstract.........................................................................................................................................III目录............................................................................................................................................V1绪论.............................................................................................................................................11.1课题来源..............................................................................................................................11.2国内外的发展状况..............................................................................................................11.3指导思想和设计要求..........................................................................................................22总体方案论证.............................................................................................................................32.1被加工零件分析..................................................................................................................32.2工艺方案的制定..................................................................................................................32.3加工设备方案选择..............................................................................................................32.4确定机床总体布局..............................................................................................................43切削用量的选择及计算.............................................................................................................53.1切削刀具的选择..................................................................................................................53.2切削用量的选择..................................................................................................................53.3切削力、切削转矩、切削功率的确定..............................................................................54组合机床总体设计.....................................................................................................................84.1被加工零件工序图..............................................................................................................84.2加工示意图..........................................................................................................................94.3机床联系尺寸图................................................................................................................104.3.1动力部件的选择...........................................................................................................104.3.2滑台及相配底座的选择...............................................................................................114.3.3确定机床的装料高度H...............................................................................................114.4机床生产率计算卡............................................................................................................114.4.1理想生产率Q...............................................................................................................114.4.2实际生产率Q1.............................................................................................................124.4.3机床负荷率ŋ负.............................................................................................................134.4.4编写机床生产率计算卡...............................................................................................145主轴箱设计...............................................................................................................................155.1主轴及传动轴结构设计....................................................................................................155.2主轴箱传动计算................................................................................................................165.2.1传动比分配...................................................................................................................165.2.2传动系统设计及齿轮的排布.......................................................................................175.3主轴箱的润滑及油泵轴的确定........................................................................................185.4轴的计算及主轴校核........................................................................................................185.5齿轮的校核........................................................................................................................205.6轴承的选择与校核............................................................................................................216夹具设计...................................................................................................................................246.1定位误差分析计算............................................................................................................246.2夹紧装置设计....................................................................................................................256.3夹紧力的计算....................................................................................................................256.4夹具零部件的设计..........................................................................................................27

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