XK-160小型数控铣床XY工作台的设计.doc -- 8 元

徐州工程学院毕业设计论文I图书分类号密级XK160小型数控铣床XY工作台的设计XY160SMALLDCALECNCMILLINGMACHINEDESIGNXYWORKTABLE摘要随着现代信息技术的发展，以提高产品加工的生产效率为主的高度自动化和以提高产品的质量为主的精密化成为现代机械加工技术发展的两个主要方向。人们对航空机、数控机床、精密仪器和仪表以及各种精密机械设备提出了越来越高的精度要求，XY作台是这些设备实现高精密加工的核心部件，对于提高产品的加工质量起着尤为重要作用。本设计通过伺服系统控制伺服电机经过数控机床进给系统包括丝杠螺母副及其支撑部件等，即将伺服电机的转动转化为工作台的进给运动。整个设计包括了伺服电机的选型，滚珠丝杠的选型、强度校核及其生产设计中应注意的问题，连接伺服电机和滚珠丝杠副的联轴器的选型与校核，支承件轴承的设计，导轨及机架的设计。通过对工作台机械传动链的系统设计以期满足机床进给系统的定位精度和静动态性能，从而确保机床的加工精度。关键词XY工作台伺服系统滚珠丝杠徐州工程学院毕业设计论文IIAbstractWiththedevelopmentofmoderninformationtechniques,thehighautomationwiththemainpurposeofimprovingtheproductionefficiencyofproductprocessandtheaccuracywiththeaccuracywiththemainaimofimprovingthequalityofproducthavebeenbecomingthetwomajordirectionsofthemoderntechniqueofmechanicalprocess.Peopleontheairmachines,CNCmachinetools,precisioninstrumentsandmetersandallkindsofsophisticatedmachineryandequipmentraisedhigherandhigherprecision,XYforTaiwanisthatthesehighprecisionmachiningequipmenttoachievethecorecomponents,forimprovingthequalityofprocessedproductsplayIsparticularlyimportantrole.TheservosystemdesignedtocontroltheservomotortothetransmissionsystemintotheNCmachinetools,includingscrewandnutbearingcomponentssuchasvice,isabouttoservomotorforthetransferofrotatingturretofthetableorfeedtheentirecampaignmechanicaltransmissionchain.Theentiremechanicaltransmissionchainforthesystemdesign,servomotor徐州工程学院毕业设计论文IIIrelatedtotheselection,theselectionofballscrews,checkingstrengthandproductiondesignshouldpayattentiontotheproblemofconnectingtheservomotorandtheballscrewoftheaxisTheSelectionandVerification,bearingpiecesbearingthedesign,railandrackdesign.Throughthetablemechanicaltransmissionchainsystemdesigntomeetthemachineintothesystemtothepositioningaccuracyandstaticanddynamicperformance,soastoensuretheaccuracyofprocessingmachine.KeywordsTheXYworktableServosystemBallscrew徐州工程学院毕业设计论文I目录绪论........................................................................1一总体方案设计.............................................................31.1设计任务..............................................................31.2总体设计方案的确定....................................................31.2.1导轨的选择........................................................31.2.2驱动电机的选择....................................................41.2.3丝杠的选择........................................................61.2.4联轴器的选择......................................................81.2.5轴承的选择........................................................9二基本参数的确定..........................................................102.1脉冲当量和传动比的确定..............................................102.2基本参数的设计......................................................102.2.1初选伺服电机.....................................................102.2.2计算丝杠承受的重量...............................................102.2.3计算铣削力.......................................................10三X向进给系统的设计与计算................................................123.1设计内容............................................................123.2X轴进给系统的设计概述...............................................123.3X轴进给系统的设计计算...............................................123.3.1切削力的计算.....................................................123.3.2滚珠丝杠设计计算.................................................123.3.3所需转动力矩计算.................................................173.3.4X轴联轴器的设计.................................................183.3.5X轴伺服电机的选型...............................................193.3.6轴承的选型.......................................................20四Y轴进给系统的设计与计算................................................224.1设计内容............................................................224.2Y轴进给系统的设计概述...............................................224.3Y轴进给系统的设计计算...............................................224.3.1切削力的计算.....................................................224.3.2滚珠丝杠设计计算.................................................224.3.3所需转动力矩计算.................................................244.3.4Y轴联轴器的设计.................................................25