高等教育自学考试本科毕业论文数控车床轴类零件加工的精确度控制设计考生姓名：陈前程准考证号：011809103361专业层次：本科院（系）：机械与电子工程指导教师：张下炼职称：讲师重庆科技学院二O一二年一月三十日高等教育自学考试本科毕业论文数控车床轴类零件加工的精确度控制设计考生姓名：陈前程准考证号：011809103361专业层次：本科指导教师：张下炼院（系）：机械与电子工程学院重庆科技学院二O一二年一月三十日摘要随着我国经济的高速发展，微电子技术、计算机技术和自动控制技术也得到了迅速发展，数控车床的高频高分辨率采样插补技术已经进入一个崭新的时代，其应用越来越广。随着人们对其要求的提高，数控技术得到了快速发展，数控机床及由数控机床组成的制造系统是改造传统产业、构建数字化企业的重要基础装备，它的发展一直备受人们关注。数控机床以其卓越的柔性自动化的性能、优异而稳定的精度、灵捷而多样化的功能引起世人瞩目，它开创了机械产品向机电一体化发展的先河，因此数控技术成为了先进制造技术中的一项核心技术。其控制技术从最初的开环控制发展到全闭环控制，精度有很大的提高但是，数控车床在加工复杂高精度零件的时候还未完全满足要求，因此必须通过持续的研究，不断的提高数控车床对零件的加工精度。本文在已有的普通数控车床加工基础上，采用提高刀具的性能、提高数控车床的制造精度、提高数控车床的位移检测装置的精度、减少机床的热变形、数控车床有关精度的一些补偿以及高精度软件插补的轨迹控制等方法提高了数控车床加工零件的精确度并使数控车床达到了较为理想的控制效果。关键词：数控车床,制造精度,软件插补控制,精确度CNCprecisionpartsmachiningcontrolABSTRACTWiththedevelopmentoftheeconomy,microelectronictechnology、computertechnologyandtheautomatictheoryaredevelopedrapidly,CNClathe,high-frequencyhigh-resolutionsamplinginterpolationtechnologyhasenteredanewera,itsapplicationmorewidely.Aspeopleincreasetheirclaims,numericalcontroltechnologyhasbeenrapiddevelopmentofnumericalcontrolmachinetoolsandCNCmachinetoolsfromthemanufacturingsystemconsistingofthetransformationoftraditionalindustries,tobuildanimportantfoundationforthedigitalbusinessequipment,itsdevelopmenthasbeenmuchattention.CNCmachinetoolsforflexibleautomationofitsoutstandingperformance,excellentandstableaccuracy,agileanddiversefunctionsandarousedattention,itcreatedthemachinerytosetaprecedentforthedevelopmentofmechanicalandelectricalintegration,itbecameanumericalcontroltechnology,advancedmanufacturingtechnologyofacoretechnology.Itscontroltechnologyfromtheinitialopen-loopcontroldevelopedtothefullclosed-loopcontrol,precisiongreatlyimproved.However,high-precisionCNClathepartsintheprocessingtimehasnotyetfullymeettherequirements,itmustbethroughsustainedresearch,andconstantlyimproveCNClathemachiningaccuracyofparts.ThearticlehasbeenbasedonthegeneralCNClathe,UsedtoimprovetheperformanceoftoolstoimprovemanufacturingprecisionCNClathes,CNClathestoimprovetheaccuracyofdisplacementdetectiondevicestoreducethethermaldeformationofmachinetools,CNClathes,aswellascompensationfortheaccuracyofsomeofthehigh-precisiontrajectorycontrolsoftwareinterpolationmethodimprovesthenumericalprecisionlathemachiningparts,CNClatheandtoachieveamoresatisfactorycontroleffect.Keywords:CNC-Lathe,Manufacturing-precision,Softwareinterpolationcontrol,Accuracy目录摘要......................................................................IABSTRACT..................................................................II1绪论......................................................................11.1数控车床的研究意义................................................
