MK1332数控外圆磨床工作台结构设计说明书.doc

I摘要随着制造业的迅速发展，传统的加工设备已无法承担加工高精度、复杂型面零件的要求，数控机床良好的加工精度和数控系统可满足此要求。而国外的数控机床比较昂贵，其价格要比国内高5060，结合市场调研和毕业设计的实际，进行磨床工作台结构设计。针对数控磨床工作台存在的爬行、颤振现象，进给滚珠丝杠刚性低问题，确定了采用滚珠丝杠带动工作台，滚珠丝杠和电动机之间采用同步齿形带联接，工作台导轨贴塑，从而改善了润滑条件，同时也起到减振作用，MK1332数控外圆磨床的爬行、颤振现象得到有效解决，提高了零件加工质量；丝杠采用两端固定支承，滚动轴承背靠背组配，刚性可提高一倍。位置检测装置采用高分辨率的脉冲编码器，通过半闭环控制测量工作台的直线位移。工作台型面采用平面形式，减少工作台的质量、转动惯量，使系统有更快的响应特性。本机床对提高加工质量和效率、缩短产品开发周期有积极的意义。关键词数控磨床工作台滚珠丝杠贴塑导轨IIABSTRACTALONGWITHTHERAPIDDEVELOPMENTOFTHEMANUFACTURINGSECTOR,THETRADITIONALPROCESSINGEQUIPMENTHASBEENUNABLETOUNDERTAKETHEPROCESSINGPRECISION,COMPLEXPARTSOFTHESURFACE,NCMACHINEGOODPRECISIONANDCNCMACHININGSYSTEMSCANMEETTHISREQUIREMENTABROADCNCMACHINETOOLSMOREEXPENSIVETHANDOMESTICPRICESHIGH5060COMBINEMARKETRESEARCHANDGRADUATEOFTHEACTUALDESIGN,STRUCTURALDESIGNWORKSTATIONSGRINDERCNCGRINDERAGAINSTTHECRAWLINGSTAGE,FLUTTER,FEEDRIGIDLOWBALLSCREW,DETERMINETHEUSEOFBALLSCREWDRIVENWORKSTATIONS,BALLSCREWANDMOTORUSESSYNCHRONOUSBELTLINKGUIDELAMINATINGWORKSTATIONS,THEREBYIMPROVINGTHELUBRICATIONCONDITIONS,BUTALSOPLAYAROLEINDAMPING,MK1332CNCCYLINDRICALGRINDERCRAWL,FLUTTERPHENOMENONTOBEANEFFECTIVESOLUTIONTOIMPROVETHEQUALITYOFTHEPARTSPROCESSING；SCREWUSINGBOTHFIXEDSUPPORTS,ROLLINGBACKUP,RIGIDBEDOUBLEDPOSITIONDETECTIONDEVICEUSINGHIGHRESOLUTIONPULSEENCODER,THROUGHHALFCLOSEDLOOPCONTROLWORKSTATIONSMEASUREMENTOFLINEARDISPLACEMENTWORKSTATIONSUSINGPLANARSURFACEFORMS,REDUCINGTHEQUALITYOFWORKSTATIONS,MOMENTOFINERTIA,ALLOWINGTHESYSTEMTOHAVEAFASTERRESPONSETHEPROCESSINGMACHINETOIMPROVEQUALITYANDEFFICIENCY,SHORTENTHEPRODUCTDEVELOPMENTCYCLEHASAPOSITIVEMEANINGKEYWORDSCNCGRINDERWORKTABLEBALLSCREWSLAMINATINGGUIDE