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Study on Ball Screw Grinding Chatter and Monitoring Method

Abstract

Abstract:

The ball screw grinding chatter influences seriously to improve the workpiece surface quality and production efficiency.Based on a lot of experimental studies,the paper analyzed and tested the relationship
among workpiece chatter marks and monitoring signals.Then,the information rate was used to monitor grinding chatter phenomenon as variable parameters of acoustic emission signals and acceleration signals.At last,the setted threshold was applied to identificate the ball screw grinding chatter phenomenon automatically,and its validity and feasibility were proved.

Key words: ball screw, grinding chatter, grinding signal, information rate, automatic monitoring

摘要：

在实验研究的基础上,分析测试了滚珠丝杠磨削中工件颤振振纹与监测信号之间的关系,提出了把信息论中的信息率作为声发射信号和加速度信号的参数变量对滚珠丝杠磨削颤振进行监测的方法。最后,通过设定信息率阈值实现自动判别磨削颤振,实验结果证明了该方法的有效性和实用性。

关键词: 滚珠丝杠, 磨削颤振, 磨削信号, 信息率, 自动监测

CLC Number:

TH123.1

CHI Yu-Lun, LI Hao-Lin. #br# #br# Study on Ball Screw Grinding Chatter and Monitoring Method[J]. China Mechanical Engineering, 2012, 23(22): 2748-2751.

迟玉伦, 李郝林. 滚珠丝杆磨削颤振分析与监测方法研究[J]. 中国机械工程, 2012, 23(22): 2748-2751.

References

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#br# #br# Study on Ball Screw Grinding Chatter and Monitoring Method

滚珠丝杆磨削颤振分析与监测方法研究

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