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Abstract:
In order to keep the service precision of electric spindle supported by hybrid bearing, the method of reducing static and dynamic processing force by electromagnetic force was proposed and a magnetic lightening system was developed. Taking the grinding machine as an example, the dynamic model of the electric spindle system was established, and the relationship between force and displacement was obtained. The static and dynamic force in grinding processing were analyzed and estimated. Then the static and dynamic load demands for service precision keeping of electric spindle were put forward. The magnetic lightening system was designed and developed, which included the structure modules and the measurement-control module. Among them, the feature of structure module was the universal support scheme, and the measurement-control module supported open loop and closed loop control strategies. A special experiment was designed to verify the performance of the magnetic lightening system. It is showed that the magnetic lightening system can satisfy the function of static load 35 N and dynamic load 28 N. It is preliminarily evidenced that using electromagnetic technique to reduce machining force is feasible. For the electric spindle with lightening device, it is more effective by using an open loop load control strategy of artificial adjusting. © 2017, Editorial Office of Journal of Vibration and Shock. All right reserved.
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Source :
Zhendong yu Chongji/Journal of Vibration and Shock
ISSN: 1000-3835
Year: 2017
Issue: 12
Volume: 36
Page: 25-30
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 2
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count: -1
30 Days PV: 0
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