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1、学院专科毕业论文（设计）齿轮轴的加工工艺规程夹具设计学生姓名：学生学号：院（系）：工程技术学院年级专业：指导教师：助理指导教师：摘要齿轮轴零件的主要作用是支撑回转零件、实现回转运动并传递转矩和动力。齿轮轴具备传动效率高、结构紧凑和使用寿命长等一系列优点，是通用机械特别是工程机械传动中的重要零件之一。齿轮轴加工材料、热处理方式、机械加工工艺过程的优化，将对提高齿轮轴的加工质量及寿命有着重要借鉴意义。本文对某企业提供的“齿轮轴”零件进行了机械制造工艺规程设计和滚齿专用夹具设计。对于工艺规程设计和夹具设计制订了一套方案。本设计首先分析了齿轮轴零件的作用和加工工艺性，然后进行工艺规程设计，最后是滚
2、齿专用夹具设计。齿轮轴零件的机械综合性能要求较高，一般选择锻件作为毛坯。合理安排工艺路线，划分加工阶段对保证零件加工质量至关重要。使用夹具可以缩短辅助时间，提高劳动生产率，保证加工精度，稳定加工质量，降低对工人的技术要求，扩大机床工艺范围。本次设计的题目是齿轮轴的机械加工工艺规程及滚齿夹具的设计。首先根据齿轮轴，进行工艺设计，进而确定工艺规程布局，随后，对滚齿夹具进行设计。关键词：齿轮轴，滚齿机，加工工艺，滚齿夹具。ABSTRACTThemainfunctionofthegearshaftistosupportrotatingparts,achieverotarymotionandtran
3、sfertorqueandpower.Gearshafthasaseriesofadvantages,suchashightransmissionefficiency,compactstructure,longservicelifeandsoon.Itisoneoftheimportantpartsinthegeneralmachinery,particularlytheengineeringmachinerytransmission.Theoptimizationofthegearshaft’smachiningmaterials,thermaltreatm-entmethodandma
4、chiningprocesswillhavegreatsignificanceonthemachiningqual-ityofthegearshaftandtheservicelife.Thispaperdiscussedthemachinerymanufa-cturingprocessplanningandfixturedesignofmillingkeyofa"gearshaft"providedbyaenterprise.Asforprocessplanningandfixturedesign,thereweretwodifferentplansforselectingthebett
5、erone.Thepaperfirstlyanalyzedthefunctionofthegears-haftanditsmechanicalproperties,andthenplannedthemachiningprocess,finally,thefixturedesign.Asgearshaftrequiresthehighermachinerycomprehensiveproperties,weusuallyselecttheforgingsastheforgingblank.Itisveryimportantforensuringtheprocessingqualityofth
6、egearshafttoarrangetheprocessroutereasonablyanddividetheprocessingstage.UsingFixturecanreducetheauxiliarytime,increaseproductivity,ensuremachiningaccuracy,stabilizetheprocessingquality,reducethetechnicalrequirementsforworkersandexpandthetechnologyrangeofmachinetool.Thesubjectisdesignedtogeardesign
7、andgearmachiningprocessdesign.First,todesignthegearaccordingtoconditions,thenthegeardesignprocess,andtodeterminetheoveralllayoutdesign,then,forhobbingfixturedesignKeywords:Gearhobbingmachine,processingtechnology,
