缸头两面钻孔专机设计论文[带图纸].doc

编号无锡太湖学院毕业设计（论文）题目：缸头两面钻孔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）缸头两面钻孔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91学号：0923003作者姓名：2013年5月25日II摘要本课题是研究一台对缸头进行加工的两面精镗组合机床，主要是对组合机床的总体结构、夹具和多轴箱的设计。首先概括了组合机床的发展，阐述了组合机床的低成本、高效率、操作使用简单等优点。然后是机床夹具的设计，采用“一面两销”的定位方式，使定位更准确；通过误差分析，夹紧力计算等确定夹具的总体结构。其次是对组合机床的设计，关键是工艺方案的拟定，这大体决定组合机床的配置形式和使用性能，然后编制“三图一卡”。最后是多轴箱的设计，通过工件的尺寸和加工孔的位置计算出主轴箱的轮廓尺寸；根据扭矩的计算得出主轴和传动轴的直径；通过类比法确定齿轮的模数；通过“计算、作图和多次试凑”确定齿轮齿数和中间传动轴的位置。在总体设计过程中，首先通过计算所需功率选择动力箱，然后根据主轴的分布情况选用多轴箱；之后根据动力箱和加工行程图来选择液压滑台，再由液压滑台选用配套的多轴箱；再配合装料高度、滑台、侧底座相互位置等来确定中间底座的高度和长度。关键词：组合机床；精镗；缸头；多轴箱IIIAbstractThistopicisthestudyofastationonbothsidesofthecylinderheadforprocessingfineboringcombinationmachine,mainlyontheoverallstructureofmachinetool,fixtures,andmulti-axledesign.Firstly,thispaperoutlinesthedevelopmentofcombinedmachine,expliansitsfeatureislow-cost,highefficiency,andwithsimpleoperationetc...Thentellsthemachinetoolfixturedesign,theuseof"locatingasurfacewithtwopins"positioningwaystomakemoreaccuratepositioning；througherroranalysis,fixtureclampingforcecalculationtodeterminetheoverallstructure.Secondly,thedesignisacombinationmachine,thekeyistheprogramdevelopmentprocess,whichlargelydeterminestheformofcombinationmachineconfigurationandperformance,andthepreparationof"thethreechartscard".Finally,theresearchisaboutmulti-axledesign,sizeandprocessingthroughtheworkpieceholepositioncalculatedheadstockoutlinedimensions；calculatedaccordingtothetorqueshaftandshaftdiameter；determinedbyanalogygearmodulus；throughthe"Calculation,mappingandrepeatedtrialanderror"OKgearandintermediateshaftposition.Intheoveralldesignprocess,firstselecttherequiredpowerbycalculatingthepowerbox,andthenchoosethedistributionofmulti-spindleaxle；afterpowerboxandprocessedaccordingtothechoiceofhydraulictraveldiagramslide,andthenthehydraulicmulti-slidesupportingoptionalaxle；togetherwithloadingheight,slide,sidestandeachothertodeterminethelocationofthemiddleofthebaseoftheheightandlength.Keywords:Aombinationmachine；Boring；Cylinderhead；Multi-spindleboxV目录摘要............................................................................................................................................IIABSTRACT..................................................................................................................................III目录...............................................................................................................................................III1绪论.............................................................................................................................................11.1本课题的研究内容和意义...................................................................................................11.2国内外的发展概况...............................................................................................................11.3本课题应达到的要求...........................................................................................................12设计方案的确定.........................................................................................................................22.1工件的大小、形状和加工部分的特点...............................................................................22.2生产率的影响.......................................................................................................................22.3经济性与可靠性...................................................................................................................23专用夹具的设计..........................................................................................................................33.1夹具的功用与组成...............................................................................................................33.2夹具的设计...........................................................................................................................33.2.1调研分析.........................................................................................................................33.2.2确定工件定位方式.........................................................................................................33.2.3确定工件加紧方式.........................................................................................................43.2.4必要的加工精度计算及分析.........................................................................................43.2.5夹紧力计算、分析.........................................................................................................44组合机床总体设计.....................................................................................................................64.1组合机床的组成...................................................................................................................64.1.1组合机床的特点.............................................................................................................64.1.2组合机床的工艺范围.....................................................................................................64.1.3组合机床配置型式.........................................................................................................64.1.4组合机床的设计步骤.....................................................................................................74.2组合机床工艺方案的确定...................................................................................................74.2.1组合机床工艺方案的基本原则.....................................................................................74.2.2确定组合机床工艺方案应注意的问题.........................................................................74.2.3工艺方案的拟订.............................................................................................................84.2.4工序间余量的确定.........................................................................................................84.2.5刀具结构的选择.............................................................................................................84.3切削用量的确定...................................................................................................................84.3.1组合机床切削用量选择的特点、方法及注意问题.....................................................94.3.2组合机床切削用量选择方法及应注意的问题.............................................................94.3.3确定切削速度和切削用量.............................................................................................94.3.4切削力、切削转矩、切削功率...................................................................................104.3.5确定主轴类型、尺寸、外伸长度...............................................................................10