1高速加工中心电主轴结构设计及关键技术应用TheconstructiondesignandkeytechnologyapplicationOfmotorspindlewhichusedinhigh-speedmachiningcentres作者姓名学位类型工科硕士学科、专业机械工程研究方向机械工程导师及职称2008年9月2合肥工业大学本论文经答辩委员会全体委员审查,确认符合合肥工业大学硕士学位论文质量要求。答辩委员会签名:(工作单位、职称)主席:委员:导师:3独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作及取得的研究成果。据我所知,除了文中特别加以标志和致谢的地方外,论文中不包含其他人已经发表或撰写过的研究成果,也不包含为获得合肥工业大学或其他教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均己在论文中作了明确的说明并表示谢意。学位论文作者签字:签字日期:年月日学位论文版权使用授权书本学位论文作者完全了解合肥工业大学有关保留、使用学位论文的规定,有权保留并向国家有关部门或机构送交论文的复印件和磁盘,允许论文被查阅或借阅。本人授权合肥工业大学可以将学位论文的全部或部分论文内容编入有关数据库进行检索,可以采用影印、缩印或扫描等复制手段保存、汇编学位论文。(保密的学位论文在解密后适用本授权书)学位论文者签名导师签名签字日期:年月日签字日期:年月日学位论文作者毕业后去向:工作单位电话通讯地址:邮编4高速加工中心电主轴结构设计、关键技术及应用摘要现代汽车制造技术引入柔性化时代,高速加工中心成为了发动机柔性化生产线的重要组成部分,高速加工大大提高了生产率、加工精度、加工质量,并降低成本。而高速电主轴是高速加工中心核心部件,因而对高速加工中心电主轴结构设计、关键技术及应用进行分析具有十分重大意义。本文首先针对加工中心高速电主轴的介绍了其结构特点、附件设计等,对两种不同的电主轴进行结构分析,主轴与转子的配合设计的方法;附件是电主轴重要组成部分,直接影响到电主轴使用性能。接着,重点论述了高速电主轴的关键技术,如:电主轴热稳定分析、轴承的润滑技术、动平衡设计、驱动技术等。本文对高速电主轴重要组成部分角接触陶瓷球轴承进行了重点论述,尤其是详细分析了轴承的预紧力。最后,结合本人工作,介绍电主轴的维护与维修,其中对脂润滑的电主轴装配做了详细介绍。关键词:高速加工电主轴附件设计轴承维护与维修5TheconstructiondesignandkeytechnologyapplicationOfmotorspindlewhichusedinhigh-speedmachiningcentresAbstractKeywords:6致谢本论文是在导师韩江教授关心和指导下完成的,从论文课题的选定到方案的确立,以及对文章的详细审定无不倾注了他的心血和辛劳。特别是在他担任繁重的校务领导工作的情况下,依然在百忙中不忘抽出宝贵的时间给予我很多的支持和帮助。他那种强烈的事业心和高度的责任感,将激励我在今后的工作学习中不断努力进取。在此,特别向韩老师表示衷心的感谢和诚挚的敬意。论文课题的选定、方案的确立和论文撰写过程中还得到了奇瑞汽发动机公司刘伟总经理助理,王德义副总工程师,朱晓曦电气工程师等同志的大力支持和悉心指导,也得到同事们的帮助,促进了我技术的迅速提高。在此,向他们表示衷心的感谢。同时,感谢我的家人,在论文研究和编撰过程中给我的帮助与支持,使我无论面临什么困难都能充满自信。最后感谢合肥工业大学,为我提供了这样一个学习及科研的环境,使我能够掌握丰富的专业知识,具备了一名硕士研究生应有的素质,并顺利地完成了研究课题及硕士论文。再一次对曾经给我帮助的所有人和将要在论文答辩中给予我帮助老师表示深深地感谢!王二镇2008年10月7目录第一章绪论········································································11.1课题研究背景及主要内容···········································11.1.1课题来源·····························································11.1.2课题意义·····························································11.2高速加工与电主轴····················································11.2.1高速加工概述························································11.2.2电主轴概述··························································11.2.3电主轴技术的发展及现状·········································1本章小结·····································································4第二章高速加工中心电主轴的结构设计及性能分析························52.1电主轴的性能分析····················································12.1.1精度和静刚度························································12.1.2临界速度·····························································12.1.3残余动不平衡值及验收振动速度值·····························12.1.4噪音与套筒的温升值···············································12.1.5使用寿命值··························································12.1.6电主轴与刀具接口··················································12.2电主轴结构设计与分析··············································12.2.1电主轴结构··························································12.2.2轴壳和转轴··························································12.2.3主轴与电机转子的配合············································12.3电主轴附件设计·······················································12.3.1电主轴刀具松夹刀系统············································12.3.2内置编码器··························································12.3.3刀具内冷装置························································12.3.4主轴的气吹和气密封···············································12.3.5松夹刀信号检测·····················································1本章小结·····································································4第三章电主轴设计制造的几个关键技术问题3.1电主轴的热稳定分析··················································13.2轴承的润滑技术························································13.2.1油脂润滑·····························································13.2.2油雾润滑·····························································13.2.3油-气润滑····························································13.3动平衡设计·····························································183.4驱动技术································································1本章小结·····································································4第四章高速电主轴的角接触陶瓷球轴承的性能分析········14.1磁悬浮轴承与动静压轴承············································14.1.1磁悬浮轴承··························································14.1.2动静压轴承··························································14.2混合陶瓷球轴承························································14.2.1混合陶瓷球轴承的概述············································14.2.1选择混合陶瓷球轴承的理由公式································14.2混合陶瓷球轴承························································14.2.2角接触陶瓷球轴承的支承方式···································14.2.2混合陶瓷球轴承的装配预加载荷································1本章小结·····································································4第五章高速电主轴电主轴的维护与维5.1电主轴的维护···························································15.1.1周保养································································15.1.2月保养································································15.1.4蝶形弹簧的涨紧力检查············································15.2电主轴的易损件的更换步骤与常见故障分析····················15.2.1更换刀具夹紧