立式铣床XY向进给系统设计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提高产品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，X-Y工作台是这些设备实现高精密加工的重要部件，对于提高产品的加工起着尤为重要的作用。本论文针对铣床工作台机构及其控制系统进行设计，主要包括伺服电动机的选型，滚珠丝杠的选型、强度校核及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，导轨的设计。根据系统的功能要求，选择数控系统的CPU，同时还需要扩展程序存储器、数据存储器以及步进电机驱动电源的选择。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：X-Y工作台，伺服系统，滚珠丝杠，步进电机ForTheDesignOfFeedSystemOfXYVerticalMillingMachineABSTRACTWiththedevelopmentofmoderninformationtechniques,thehighautomationwiththemainpurposeofimprovingtheproductionefficiencyofproductprocessandtheaccuracywiththeaccuracywiththemainaimofimprovingthequalityofproducthavebeenbecomingthetwomajordirectionsofthemoderntechniqueofmechanicalprocess.PeopleontheCNCmachinetools,precisioninstrumentsandmetersandallkindsofsophisticatedmachineryandequipmentraisedhigherandhigherprecision,X-Yworkbenchisthatimportantcomponentsofthesehigh-precisionmachiningequipmenttoachievethecorecomponents,forimprovingthequalityofprocessedproductsplaytheparticularlyimportantrole.Theentiremechanicaltransmissionchainforthesystemdesign,servomotorrelatedtotheselection,theselectionofballscrews,checkingstrengthandproductiondesignshouldpayattentiontotheproblemofconnectingtheservomotorandtheballscrewoftheaxis.TheTelectionandVerification,bearingpiecesbearingthedesign,railandrackdesign.Accordingtothefunctionrequirementofsystem,theselectionoftheCNCsystemCPU.Itwouldalsoneedtoexpandtheprogrammemory,datamemoryandthechoiceofsteppermotordrivepower.Throughthetablemechanicaltransmissionchainsystemdesigntomeetthemachineintothesystemtothepositioningaccuracyandstaticanddynamicperformance,soastoensuretheaccuracyofprocessingmachine.KEYWORDS:TheX-Yworkbench,Servosystem,Ballscrew,steppermotor目录摘要...............................................................IABSTRACT................................................................II1绪论.............................................................11.1国内外数控系统的发展概况.................11.2数控技术的发展趋势...............................11.3数控立式铣床X-Y工作台概述.....................11.4立式铣床XY工作台设计的意义和目的.......22工作台设计的总体方案.................................32.1工作台设计任务......................................32.2机械传动部件的选择...............................32.3控制系统的设计......................................33机械传动部件的计算与选型..........................53.1确定系统脉冲当量...................................53.2工作台外形尺寸及重量初步估算..............53.3铣削力的计算..........................................63.4直线滚动导轨副的计算与选型.................63.5滚珠丝杠螺母副的计算与选型.................73.6角接触球轴承的选用、校核.....................93.8联轴器的选型........................................104步进电动机的计算与选型............................124.1步进电机简介及原理...............................124.2步进电机的计算与选型..........................124.2.1计算加在步进电动机转轴上的总转动惯量....
