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摘要I摘要通用车床主轴箱的设计，主要包括三个方面的设计，即：根据设计题目所给定的机床用途、规格、主轴极限转速、转速数列公比，确定其他有关运动参数，选定主轴各级转速值；通过分析比较，选择传动方案；拟定结构式或结构网，拟定转速图；确定齿轮齿数及带轮直径；绘制传动系统图。其次，根据机床类型和电动机功率，确定主轴及各传动件的计算转速，初定传动轴直径、齿轮模数，确定传动带型号及根数；装配草图完成后要验算传动件的刚度、强度或寿命。最后，完成运动设计和动力设计后，要将主传动方案“结构化”，设计主轴变速箱装配图及部分零件图。完成后建立三维模型。通过运用Proe对主轴箱传动系统部分进行三维建模，加深对通用车床主轴箱工作原理的理解。关键词：通用车床；主轴箱；传动系统；主轴组件；三维建模。AbstractIIAbstractDesignofuniversallatheheadstock,mainlyincludingthedesign,threeaspects:accordingtothedesignofmachinetooluse,thegivenspecifications,spindlespeedlimitofsequence,speedratio,determinetherelevantmotionparameters,selectedatspeedofthemainshaft;throughanalysisandcomparison,selectthetransmissionscheme;developstructureorstructure,developspeeddiagram;todeterminethenumberofgearteethandbeltpulleydiameter;drawingdrivesystemdiagram.Secondly,basedonthemachinetypeandmotorpower,determiningthespindleandthetransmissionofthecomputationspeed,initialdriveshaftdiameter,thegearmodulus,determinethetransmissionbelttypeandnumberofroots;theassemblyafterthecompletionofthedraftplantothecheckingtransmissionofthestiffness,strengthorfatiguelife.Finally,tocompletetheexercisedesignanddynamicdesign,tothemaintransmissionschemestructured,designofspindlegearboxassemblydrawingandpartsdrawing.Establishthethree-dimensionalmodeliscompleted.ThroughtheuseofProethree-dimensionalmodelingofthespindleboxdrivesystem,enhancethegenerallathespindleboxprincipleunderstanding.Keywords:generallathe;spindlebox;transmissionsystem;spindleassembly;three-dimensionalmodeling目录III目录摘要.................................................................................................................................................................IAbstract...........................................................................................................................................................II第一章绪论.................................................................................................................................................1第二章通用车床的规格与操作性能要求.................................................................................................22.1通用车床的规格...............................................................................................................................22.2操作性能要求...................................................................................................................................2第三章主电动机参数的拟定.....................................................................................................................33.1主轴变速范围与主轴转速级数的确定...........................................................................................33.2主电动机的选择...............................................................................................................................3第四章变速结构的设计.............................................................................................................................44.1主变速方案拟定...............................................................................................................................44.2变速结构式、结构网的选择...........................................................................................................44.2.1确定变速组及各变速组中变速副的数目............................................................................44.2.2变速式的拟定........................................................................................................................44.2.3结构式的拟定........................................................................................................................44.2.4结构网的拟定........................................................................................................................54.2.5主轴变速范围的拟定............................................................................................................54.2.6绘制转速图............................................................................................................................64.2.7确定各变速组变速副齿数....................................................................................................74.2.8绘制变速系统图....................................................................................................................8第五章结构设计.........................................................................................................................................95.1结构设计的内容、技术要求和方案...............................................................................................95.2展开图及其布置...............................................................................................................................95.3Ⅰ轴（输入轴）的设计....................................................................................................................95.4齿轮块设计.......................................................................................................................................95.5传动轴的设计.................................................................................................................................105.6主轴组件设计........................................