Study on Dynamic Characteristics of Magnetic Suspension Milling Motorized Spindle Rotor-tool Variable Mass Unbalance System

被引：0
|
作者：
Ouyang Z. [1 ]
Kang H. [1 ]
Liu H. [1 ]
Duan L. [2 ]
Cao Z. [1 ]
Zhou Y. [1 ]
Jiang G. [1 ]
Li W. [1 ]
机构：
[1] School of Mechanical Engineering, Hunan University of Science and Technology, Xiangtan
[2] Numerical Control Processing Branch of Jiangnan Industrial Group Co. LTD, Xiangtan
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2022年 / 58卷 / 23期
关键词：
magnetic suspension motorized spindle; modal analysis; unbalanced response; variable mass;
D O I：
10.3901/JME.2022.23.306
中图分类号：
学科分类号：
摘要：
Aiming at the rotation accuracy instability problem of "tool - the main shaft" system caused by the mass change of "tool-spindle" system caused by the chip entering into the chip tolerance slot during the cutting process of magnetic suspension milling motorized spindle, a dynamic model of "chip-tool-spindle" system was established based on variable mass point theory. The vibration of the system caused by the change of the unbalance mass was analyzed, and the unbalance magnetic force was generated due to the uneven magnetic field in the air gap between the stator and rotor of the magnetic suspension bearing. A model of the unbalance magnetic force was established by using the equivalent magnetic circuit method. The Riccati transfer matrix method was used to solve the steady-state dynamic model of rotor-tool system in magnetic suspension milling motorized spindle, and the unbalance response of the system under the influence of the modal parameters and the initial eccentric mass was obtained. The milling force, the variable mass force, the chip mass unbalanced centrifugal force and the unbalanced magnetic pull force were considered, and the Newmark-β algorithm was used to solve the transient dynamic model of the rotor-tool variable mass system. The dynamic response of the system from starting to cutting process is simulated and analyzed. The results show that, mass unbalance is the main factor affecting the steady state response of rotor-tool system of magnetic suspension milling motorized spindle; variable mass force is the main factor affecting the transient response of the system; the effect of unbalanced magnetic pull on system response is negatively correlated with system stability and positively correlated with system amplitude. © 2022 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.
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页码：306 / 320
页数：14
相关论文
共 30 条
  • [1] XIONG Wanli, SUN Wenbiao, LIU Kan, Et al., Active magnetic bearing technology development in high-speed motorized spindles[J], Journal of Mechanical Engineering, 57, 13, pp. 1-17, (2021)
  • [2] ZHANG Gang, LIU Ning, GAO Gang, Et al., Development and application of magnetic levitation bearing technology, The fourth Symposium of China Bearing Forum, pp. 102-106, (2006)
  • [3] CHEN Yixin, HU Yefa, YANG Hengming, Et al., Structural analysis and design of controllable magnetic bearing for machine tool spindle[J], Machine Tool & Hydraulics, 3, pp. 2-8, (1988)
  • [4] ZHANG Dekui, ZHAO Lei, ZHAO Hongbin, Et al., Electric spindle and control of magnetic levitation bearing internal Grinder[J], Bearing, 11, pp. 11-13, (2000)
  • [5] ZHU Runsheng, YANG Zuoxing, ZHAO Lei, Et al., Grinding test of active magnetic bearing motorized spindle, Journal of Mechanical Engineering, 6, pp. 134-138, (2002)
  • [6] KIMMAN M, LANGEN H, SCHMIDT R, A miniature milling spindle with active magnetic bearings[J], Mechatronics, 20, 2, pp. 224-235, (2010)
  • [7] TIAN Shengli, Study on complex dynamic characteristics and comprehensive testing technology of high speed motorized spindle system, (2019)
  • [8] QIAO Xiaoli, Magnetic suspension motorized spindle-cutting system dynamics analysis and vibration control review, Journal of Hebei University of Science and Technology, 37, 5, pp. 441-448, (2016)
  • [9] YANG Xinzhou, ZHANG Gang, WU Jianfeng, Et al., Simulation and analysis of dynamic performance of magnetic levitation support milling spindle, 2003 Large Generator Vibration and Rotor Dynamics Conference, (2003)
  • [10] LI Songsheng, ZHANG Gang, YANG Liuxin, Et al., Design and analysis of high-speed magnetic suspension spindle foe CNC milling machine[J], Manufacturing Technology & Machine Tool, 3, pp. 114-116, (2005)
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