高速电主轴单元的热态特性研究
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摘要
高速机床是先进制造技术中的重要成就之一,逐渐成为制造业的一个明确的发展方向,也是经济发展的必然要求。高速机床已成为支撑国民经济发展的重要基础装备,其技术水平的高低是衡量一个国家科学技术水平和生产力水平的重要标志之一,也是促进装备制造业迅速发展的重要因素。高速电主轴是高速机床的关键部件,改善电主轴的热态特性,以减少电主轴的温升和热变形是当前电主轴研究的重要内容之一。
本课题针对高速电主轴的热态特性进行研究,并对温度变化引起的电主轴形位偏差进行分析,具体内容如下:
1.通过对电主轴单元的主要热源分析,设计内外结合式测温方案,完成对其主要热源的温度数据采集。
2.对电主轴单元进行ANSYS仿真分析,得出电主轴单元的温度场和热应力分布图,以及主轴关键部位的温度随时间变化的情况。
3.通过对电主轴单元温度及热变形量的数据分析,明确了影响主轴热变形量的因素。并运用Lab VIEW软件设计了温升与热变形数据分析系统。
4.对电主轴单元的温升控制与误差补偿措施进行分析和讨论,提出改善电主轴热态特性的措施。
High speed machine tool is the important achievement of advanced manufacturing technology, gradually becomes one of the developments of the manufacturing industry with a clear direction, and is the inevitable requirement of economic development. High speed machine tool has become the important supporting national economic development, the technology based equipment level is the measure of a national science and technology level and the level of productivity, but also promote an important mark of the equipment manufacturing industry rapid development of important factors. High-speed electric spindle is the key parts of high-speed machine, improve electric spindle one-dimenion thermal characteristics, in order to reduce the temperature electric spindle thermal deformation is the current electric spindle one of the important research topics.
This research for high-speed electric spindle one-dimenion thermal properties of temperature change, and the electric spindle form and position deviation analysis, the concrete content as follows:
1. Through the main spindle unit of electricity heat sources analysis, design combined type temperature measurement program, complete to its main heat source temperature data collection.
2. To electric spindle unit are ANSYS simulation analysis, obtains electric spindle unit temperature field and thermal stress distribution, and spindle key parts of temperature changes with time.
3. Through the electric spindle unit temperature and thermal deformation data analysis, clarifies the influence factors of thermal deformation axis. And using the Lab VIEW software design temperature rise and thermal deformation data analysis system.
4. Electric spindle unit of temperature control and error compensation is analyzed and discussed measures for improving electric spindle, and puts forward the measures one-dimenion thermal properties.
本课题针对高速电主轴的热态特性进行研究,并对温度变化引起的电主轴形位偏差进行分析,具体内容如下:
1.通过对电主轴单元的主要热源分析,设计内外结合式测温方案,完成对其主要热源的温度数据采集。
2.对电主轴单元进行ANSYS仿真分析,得出电主轴单元的温度场和热应力分布图,以及主轴关键部位的温度随时间变化的情况。
3.通过对电主轴单元温度及热变形量的数据分析,明确了影响主轴热变形量的因素。并运用Lab VIEW软件设计了温升与热变形数据分析系统。
4.对电主轴单元的温升控制与误差补偿措施进行分析和讨论,提出改善电主轴热态特性的措施。
High speed machine tool is the important achievement of advanced manufacturing technology, gradually becomes one of the developments of the manufacturing industry with a clear direction, and is the inevitable requirement of economic development. High speed machine tool has become the important supporting national economic development, the technology based equipment level is the measure of a national science and technology level and the level of productivity, but also promote an important mark of the equipment manufacturing industry rapid development of important factors. High-speed electric spindle is the key parts of high-speed machine, improve electric spindle one-dimenion thermal characteristics, in order to reduce the temperature electric spindle thermal deformation is the current electric spindle one of the important research topics.
This research for high-speed electric spindle one-dimenion thermal properties of temperature change, and the electric spindle form and position deviation analysis, the concrete content as follows:
1. Through the main spindle unit of electricity heat sources analysis, design combined type temperature measurement program, complete to its main heat source temperature data collection.
2. To electric spindle unit are ANSYS simulation analysis, obtains electric spindle unit temperature field and thermal stress distribution, and spindle key parts of temperature changes with time.
3. Through the electric spindle unit temperature and thermal deformation data analysis, clarifies the influence factors of thermal deformation axis. And using the Lab VIEW software design temperature rise and thermal deformation data analysis system.
4. Electric spindle unit of temperature control and error compensation is analyzed and discussed measures for improving electric spindle, and puts forward the measures one-dimenion thermal properties.
引文
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[7]编者.我国机床工业发展中存在的矛盾和问题[J].机械工程师,2006,05:9-10.
[8]张宏韬.高速机床的关键技术和发展趋势[J].机械制造.2006,3:12-14.
[9]郭策,孙庆鸿.高速高精度数控车床主轴系统得热特性分析及热变形计算,东南大学学报(自然科学版) [J].2005, 35(2):231-234.
[10]邹莹.高速机床传动系统特性研究[D].大连:大连理工大学,2005.
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[12] Berd Bossmanns and Jay F.Tu, A Thermal Model for High Speed Motorized Spindles.InternationalJournalofMachineTools& nufacture,1999,(39):1345-1366
[13] F.Farcas, M.D. Gafitnu. Some Influence Parameters on Greases Lubricated Rolling Contacts Service Life. Wear, 1999, (225):1004-1010.
[14] Bern Bossmanns, Jay F.Tu.A Power Flow Model for High Speed Motorized Spindles-Heat Generation Characterization.ASME Journal of Manufacturing Science and Engineering, 2001, (123):494-505.
[15] S.H.YEO, K.Ramesh, Z.W.Zhong. Ultra-high-speed Grinding Spindle Characteristics upon Using Oil/air Mist lubrication. International Journal of Machine Tools & Manufacture.2002,(42):815-823.
[16] Chi-Wei Lin, JayF.Tu, Joe Kaman. An Integrated Thermo-mechanical dynamic Model to Characterize Motorized Machine Tool Spindles during very High Speed Rotation. International Journal of Machine Tools&Manufacture, 2003,(43):1035-1050.
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[18] Jenq-Shyong.Chen, Wei-Yao Hsu.Characterization and Models for the Thermal Growth of a Motorized High Speed Spindle. International Journal of Machine Tools & Manufacture, 2003, (43):1163-1170.
[19]蒋兴奇,马家驹,赵联春.高速精密角接触球轴承热分析[J].轴承,2000,(8):1-4.
[20]肖曙红,黄晓明,张伯霖.高速角接触球轴承发热及其影响因素[J].机床与液压.2004,(12):17-20.
[21]何晓亮,熊万里,黄红武.高速精密主轴轴承热特性的计算及分析[J].机械.2003,(6):14-17.
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[23]戴锅生.传热学[M].北京:高等教育出版社,1999:1-348.
[24] [美].F.P.Incropera,D.P.DeWitt,T.L.Bergman等传热和传质基本理论原理[M].葛新石,叶宏译.北京:化学工业出版社,2007:1-598.
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[26]汪星桥,盛伯浩,遇立基.机床设计手册(第三册)[M].北京:机械工业出版社,1986.
[27]王帽成,张根全.有限元元法基本原理和数字方法[M].北京:清华大学出版社,2001.
[28] [美]Saeed Moaveni著,欧阳宇,王崧译有限元分析ANSYS理论与应用,北京:电子工业出版社
[29]傅永华有限元分析基础[M].武汉:武汉大学出版社,2003:133-134.
[30]费业泰等著.机械热变形理论及应用[M].北京:国防工业出版社,2009.
[31]鲍里先科AN,丹科BF,亚科夫列夫AN.电机中的空气动力学与热传递[M].北京:机械工业出版社,1985.
[32]戴曙.机床滚动轴承应用手册[M].北京:机械工业出版社,1996:289-303.
[33]谢黎明,黎新奇,靳岚.温度测点优化在机床主轴组件热特性研究中的应用[J].北京:科学技术与工程,2007.(22)5883-5885.
[34]王魁汉.温度测量实用技术[M].北京:机械工业出版社,2007:16-18.
[35]徐科军,马修水,李晓林.传感器与检测技术[M].电子工业出版社,2004.
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