机械毕业设计628二维交流伺服数控控制工作台机械系统设计

毕业设计(论文)二维交流伺服数控控制工作台机械系统设计THEMECHANICALSYSTEMDESIGNOFTWO-DIMENSIONALEXCHANGESERVONUMERICALCONTROLCONTROLWORKTABLE学生姓名学院名称机电工程学院专业名称机械设计制造及其自动化指导教师I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ch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，X-Y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传动系统包括丝杠螺母副及其支承部件等,即将伺服电机的旋转运动传递为工作台或刀架的进给运动的整个机械传动链。对整个机械传动链进行了系统的设计,涉及到伺服电机的选型,滚珠丝杠副的选型、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X-Y工作台；伺服系统；数控机床IIAbstractWiththedevelopmentofmoderninformationtechniques,thehighautomationwiththemainpurposeofimprovingtheproductionefficiencyofproductprocessandtheaccuracywiththeaccuracywiththemainaimofimprovingthequalityofproducthavebeenbecomingthetwomajordirectionsofthemoderntechniqueofmechanicalprocess.Peopleontheairmachines,CNCmachinetools,precisioninstrumentsandmetersandallkindsofsophisticatedmachineryandequipmentraisedhigherandhigherprecision,XYforTaiwanisthatthesehigh-precisionmachiningequipmenttoachievethecorecomponents,forimprovingthequalityofprocessedproductsplayIsparticularlyimportantrole.TheservosystemdesignedtocontroltheservomotortothetransmissionsystemintotheNCmachinetools,includingscrewandnutbearingcomponentssuchasvice,isabouttoservomotorforthetransferofrotatingturretofthetableorfeedtheentirecampaignmechanicaltransmissionchain.Theentiremechanicaltransmissionchainforthesystemdesign,servomotorrelatedtotheselection,theselectionofballscrews,checkingstrengthandproductiondesignshouldpayattentiontotheproblemofconnectingtheservomotorandtheballscrewoftheaxisTheSelectionandVerification,bearingpiecesbearingthedesign,railandrackdesign.Throughthetablemechanicaltransmissionchainsystemdesigntomeetthemachineintothesystemtothepositioningaccuracyandstaticanddynamicperformance,soastoensuretheaccuracyofprocessingmachine.KeywordsXYtable;servosystem;CNCmachinetoolsI目录1绪论..............................................................11.1数控工作台概述................................................11.1.1概念......................................................11.1.2数控工作台分类............................................11.1.3数控工作台组成............................................11.2课题的背景....................................................21.3总体方案设计..................................................22交流伺服电动机....................................................42.1交流伺服电动机概述............................................42.2交流伺服电动机的选型..........................................63丝杠的选型及计算..................................................83.1丝杠的介绍....................................................83.1.1丝杠螺母机构基本传动形式..................................83.1.2滚珠丝杠副的组成及特点....................................83.1.3滚珠丝杠的结构形式........................................83.2丝杠的选型...................................................103.3丝杠的校核...................................................103.4丝杠设计中应注意的问题.......................................124联轴器的选择.....................................................144.1联轴器的初步计算.............................................144.1.1选择联轴器...............................................144.1.2联轴器较核...............................................155轴承的选用及润滑.................................................175.1滚动轴承结构设计.............................................175.1.1精度.....................................................175.1.2配合.....................................................175.1.3轴承材料选择.............................................185.2轴承的型号选择：.............................................185.2.1深沟球轴承的选择与计算...................................185.2.2角接触球轴承的选择.......................................195.3轴承的润滑...................................................206导轨的选型及计算.................................................216.1初选导轨型号及估算导轨长度...................................21II6.2计算滚动导轨副的距离额定寿命.................................226.3导轨材料与热处理.............................................246.4导轨的技术要求...............................................256.4.1表面粗糙度...............................................256.4.2几何精度.................................................266.5导轨设计和使用注意事项.......................................267机架的设计.......................................................277.1机架设计的技术要求...........................................277.2机架设计的一般要求...........................................287.3机架材料的选择...............................................288伺服驱动部分.....................................................308.1接口.........................................................308.1.1人机接口.................................................308.1.2机电接口.................................................308.2伺服系统.....................................................308.2.1伺服系统的特点...........................................308.2.2伺服系统的组成...........................................318.2.3变频器...................................................318.3控制系统.....................................................32结论..........................