会员注册 | 登录 | 微信快捷登录 支付宝快捷登录 QQ登录 微博登录 | 帮助中心 人人文库renrendoc.com美如初恋!
站内搜索 百度文库

热门搜索: 直缝焊接机 矿井提升机 循环球式转向器图纸 机器人手爪发展史 管道机器人dwg 动平衡试验台设计

   首页 人人文库网 > 资源分类 > DOC文档下载

外圆数控磨床工作台结构设计说明书.doc

  • 资源星级:
  • 资源大小:1.56MB   全文页数:64页
  • 资源格式: DOC        下载权限:注册会员/VIP会员
您还没有登陆,请先登录。登陆后即可下载此文档。
  合作网站登录: 微信快捷登录 支付宝快捷登录   QQ登录   微博登录
友情提示
2:本站资源不支持迅雷下载,请使用浏览器直接下载(不支持QQ浏览器)
3:本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰   

外圆数控磨床工作台结构设计说明书.doc

I外圆数控磨床工作台结构设计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,NCMachinegoodprecisionandCNCmachiningsystemscanmeetthisrequirement.AbroadCNCmachinetoolsmoreexpensivethandomesticpriceshigh5060.combinemarketresearchandgraduateoftheactualdesign,structuraldesignworkstationsGrinder.CNCGrinderagainstthecrawlingstage,flutter,feedrigidlowballscrew,determinetheuseofballscrewdrivenworkstations,ballscrewandmotorusessynchronousbeltlinkGuidelaminatingworkstations,therebyimprovingthelubricationconditions,butalsoplayaroleindamping,MK1332CNCCylindricalGrindercrawl,flutterphenomenontobeaneffectivesolutiontoimprovethequalityofthepartsprocessingScrewusingbothfixedsupports,Rollingbackup,rigidbedoubled.Positiondetectiondeviceusinghighresolutionpulseencoder,throughhalfclosedloopcontrolworkstationsmeasurementoflineardisplacement.Workstationsusingplanarsurfaceforms,reducingthequalityofworkstations,momentofinertia,allowingthesystemtohaveafasterresponse.Theprocessingmachinetoimprovequalityandefficiency,shortentheproductdevelopmentcyclehasapositivemeaning.KeywordsCNCGrinderWorktableBallScrewsLaminatingGuide目录摘要................................................................................................IAbstract..........................................................................................II第1章绪论....................................................................................11.1数控加工技术..........................................................................11.1.1数控机床的产生和发展.....................................................21.1.2数控机床的发展趋势.........................................................21.2数控机床的优点.......................................................................41.2.1数控机床的优点..............................................................41.2.2数控机床加工零件的特点................................................51.3设计参数和方案确定................................................................61.3.1机床主要技术参数............................................................61.3.2MK1332数控外圆磨床设计参数...........................................61.3.3MK1332数控外圆磨床加工产品的主要精度.....................71.3.4设计方案的确定..............................................................7第2章数控机床的组成和分类.........................................................92.1数控机床的组成.....................................................................92.2数控机床的分类.....................................................................92.2.1按工艺用途分类............................................................102.2.2按控制运动方式分类.....................................................102.2.3按伺服系统的类型分类.................................................112.2.4按照功能水平分类.........................................................11第3章进给系统设计.....................................................................133.1工作台机构传动设计............................................................133.2滚珠丝杠螺母副...................................................................143.2.1工作原理与特点............................................................153.2.2滚珠丝杠螺母副的循环方式..........................................163.2.3滚珠丝杠副的轴向间隙消除和预加载荷........................163.3滚珠丝杠副的精度................................................................163.3.1滚珠丝杠当量动载荷的计算..........................................163.3.2滚珠丝杠的选取和极限转速的计算...............................193.3.3滚珠丝杠副效率计算.....................................................223.3.4滚珠丝杠副刚度验算.....................................................22第4章滚珠丝杠的支承................................................................244.1轴端支承形式的选择..............................................................244.1.1滚珠丝杠轴端支承形式的选择.........................................244.1.2滚珠丝杠对轴承的要求...................................................254.1.3轴承的组配方式..............................................................254.2轴承预紧力............................................................................264.2.1轴承应适当的预紧,适当的预紧有助于提高轴承的工作能力...........................................................................................264.2.2预紧与发热.....................................................................274.3滚珠丝杠的联接...................................................................304.3.1同步齿形带的计算..........................................................31第5章电动机的选择和惯量匹配计算..........................................375.1最大静态切削负载转矩的计算...............................................375.2惯量匹配计算........................................................................385.3最大空载加速转矩的计算......................................................415.4系统增益设计........................................................................43第6章导轨的选择与工作台型面的确定........................................456.1导轨的选择...........................................................................456.1.1导轨的分类.....................................................................456.1.2导轨的间隙调整机构.......................................................486.1.3贴塑导轨设计..................................................................496.2工作台型面的确定.................................................................51第7章机床定位精度验算..............................................................53结论...................................................................错误未定义书签。6

注意事项

本文(外圆数控磨床工作台结构设计说明书.doc)为本站会员(淘宝运营)主动上传,人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知人人文库网([email protected]),我们立即给予删除!

温馨提示:如果因为网速或其他原因下载失败请重新下载,重复下载不扣分。

copyright@ 2015-2017 人人文库网网站版权所有
苏ICP备12009002号-5