毕业设计(论文)-轴加工工艺和铣键槽夹具设计【轴长235】.doc

武汉职业技术学院机械制造与自动化专业毕业设计毕业设计（论文）PAGE\*MERGEFORMAT摘要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。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。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“轴”零件进行了机械制造工艺规程设计和铣键槽专用夹具设计。对于工艺规程设计和夹具设计制订了两套不同的方案，从中甄选出最佳方案。本设计首先分析了轴零件的作用和加工工艺性，然后进行工艺规程设计，最后是铣键槽专用夹具设计。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。本文对所设计的专用夹具进行了精度校核和定位误差分析，对夹具的设计质量也进行了评估。关键词：轴；工艺分析；工艺规程设计；夹具设计AbstractThemaineffectofshaftpartsistosupporttherotatingparts,rotarymotionandtorqueandpower.Shaftwithhightransmissionefficiency,compactstructureandlongservicelifeandaseriesofadvantages,istheuniversalmachineisoneofthemostimportantpartsinthetransmissionofEngineeringmachinery.Shaftprocessingmaterials,heattreatment,machiningprocessoptimization,toimprovethemachiningqualityandthelifeofshafthassignificance.Inanenterprisetoprovide"axis"partsofthemachinerymanufacturingprocessplanningandkeywaymillingfixturedesign.Fortheprocessdesignandfixturedesignfortwodifferentsetsofprograms,selectthebestsolutionfromzhen.Firstlythispaperanalyzestheroleandprocessofshaftparts,thenorderforthedesignprocess,thefinaldesignofspecialfixturekeywaymilling.Comprehensivemechanicalperformancerequirementsofhighshaftparts,generallyasblankforgings.Reasonableprocessroutearrangement,divisionstageofprocessingisveryimportanttoensurethemachiningqualityofparts.Theuseoffixturecanreducetheauxiliarytime,improvelaborproductivity,guaranteetheprocessingprecision,stableprocessingquality,reducethetechnicalrequirementsforworkers,machinetechnologytoexpandthescopeof.Inthispaper,theprecisionofcalibrationandpositioningerrorofthespecialfixturedesignanalysis,designqualityofthefixturewerealsoevaluated.Keywords:axis;processanalysis;processdesign;fixturedesign目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc416884506"摘要PAGEREF_Toc416884506\hIHYPERLINK\l"_Toc416884507"AbstractPAGEREF_Toc416884507\hIHYPERLINK\l"_Toc416884508"1引言PAGEREF_Toc416884508\h2HYPERLINK\l"_Toc4