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    AWC机架现场扩孔机设计说明书毕业论文.doc

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    AWC机架现场扩孔机设计说明书毕业论文.doc

    攀枝花学院本科毕业设计(论文)摘要I摘要解决攀钢热轧板厂三期技改工程(立辊轧机宽度自动控制系统(AWC)改造后,需对现有的立辊轧机机架进行扩孔,以便安装长行程伺服油缸。立辊轧机机架扩孔如果送入设备制造厂进行加工,质量保证可靠,但机架还原难于保证安装质量、精度。为了降低技改工程费用,决定在立辊轧机现场对机架进行扩孔加工。经过潜心研究,结合现场实际情况设计专用扩孔设备专用镗床。再结合专用设备的扩孔工艺,提出了切实可行的解决方案,该方案具有经济、实用、可行等特点。设计的特色:解决了现场安装及镗杆的刚度问题;满足了扩较大孔的要求;此专用设备镗刀系统采用卧式镗床的平旋盘结构,可方便调整刀具切削深度;导轨采用组合式导轨,使运动平稳,安装便捷;支撑采用组合机床型式支撑,便于拆卸安装,可大大提高生产率。关键词专用设备,专用镗床,加工效率,工艺实验攀枝花学院本科毕业设计(论文)AbstractIIAbstractThisisusefulforPangangresolveHotMILLthreetechnicaltransformationprojects(uprollermillwidthControlSystem(AWC).Afterthetransformation,Itneedstoboretheexistinglegislationforrollermillhousingborefortheinstallationofalongjourneyservotank.IfLegislativerollmillhousingboresenttofactoriestobore,thequalityisassuranceandreliable,butitfixedback,itcantassureinstallationqualityandaccuracy.Toreducethetechnologicaltransformationprojectcosts,thelegislaturedecidedtorollmillsiteforreamingrackprocessing.Afterpainstakingresearch,combiningwiththeactualpromblesworkoutspecialequipmentbore-specialboringmachine.Inthelightofthespecialequipmentreamingtechnology,apracticalsolution.Theprogramiseconomic,practical,possiblefeatures.Characteristicofthisdesign:Hassolvedthepromblessuchasinstallmentandtheboringrodrigidity;Satisfiedexpandedcomparesthepockettherequest;ThisspecialpurposeequipmentboringcuttersystemusesthehorizontalboringmachinethePingxuanplatestructure,mayfacilitatetheadjustmentcuttingtooldepthofcut;Theguiderailusesthecombinedtypeguiderail,causesthemovementsteadily,theinstallmentisconvenient;Thestrutusestheaggregatemachine-toolpatternstrut,isadvantageousforthedisassemblageinstallment,maygreatlyenhancetheproductivity.KeywordsSpecialEquipment,Specialboringmachine,Processingefficiency,TechnologyExperiment攀枝花学院本科毕业设计(论文)目录III目录摘要·····································································································IABSTRACT··························································································II1绪论································································································11.1设计目的和意义·················································································11.2扩孔技术要求····················································································11.3应解决的问题····················································································11.4设计项目的发展情况············································································21.5设计原理··························································································22总体设计···························································································32.1总体设计原则····················································································32.2工艺分析··························································································32.3总体方案的比较·················································································32.3.1刀杆的安装形式············································································32.3.2进给方式·····················································································42.3.3升降运动形式···············································································42.3.4机床运动的分配············································································42.3.5选择传动形式和支撑形式·································································43力能参数计算·····················································································63.1镗削用量的选择及转矩、功率的确定原则···················································63.2最佳切削用量的选择············································································63.2.1现有镗孔工艺参数··········································································63.2.2镗削切削速度、扭矩和切削功率公式···················································73.2.3主要镗削参数的计算·······································································73.3选择电机··························································································94扩孔机传动系统设计·········································································104.1确定总传动比··················································································104.2分配传动装置的传动比·······································································104.3计算总的机械效率··············································································114.4计算传动装置各轴的运动和动力参数·······················································114.5带传动设计·····················································································12攀枝花学院本科毕业设计(论文)目录IV4.6传动斜齿轮的设计计算·······································································144.6.1选定齿轮类型、精度等级、材料及齿数··············································144.6.2按齿面接触强度设计·····································································144.6.4几何尺寸计算·············································································174.6.5计算轴间圆柱斜齿轮····························································184.6.6齿轮的结构设计··········································································184.7轴的结构设计··················································································184.7.1轴设计的主要内容········································································184.7.2轴的材料···················································································194.7.3轴的设计计算·············································································194.7.4按扭转强度初步估算轴径·······························································194.7.5轴的机构设计·············································································204.7.6求轴上的载荷··············································································214.7.7按弯扭合成应力校核的轴的强度·······················································224.7.8精确校核轴的疲劳强度··································································234.7.9对轴进行设计··········································································254.8对所有选用键进行强度校核·································································304.9对承受较大载荷的圆锥滚子轴承进行校核·················································314.10镗刀系统设计·················································································334.10.1镗刀头·····················································································334.10.2镗杆选择·················································································344.11箱体的结构设计··············································································345导轨设计·························································································376镗刀强度及镗杆的稳定性验算····························································397工艺试验·························································································43结论·································································································44参考文献·························································································45附录A:E1立辊轧机机架加工工序图·······················································46附录B:E2立辊轧机机架加工工序图·······················································47致谢·······························································································48

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