基于声发射信号的外圆切入磨削去除率监测

中国机械工程 ›› 2013, Vol. 24 ›› Issue (22): 2992-2996.

基于声发射信号的外圆切入磨削去除率监测

姜晨;李郝林;麦云飞

上海理工大学,上海,200093

出版日期:2013-11-25 发布日期:2013-11-29
基金资助:
国家科技重大专项(2011ZXO4004-051);上海市自然科学基金资助项目(12ZR1420700);上海市教委科研创新项目(13YZ068);机械系统与振动国家重点实验室开放课题资助项目(MSV-2012-13)

Prediction on Material Removal Rate of Precision Cylindrical Plunge Grinding Based on Model of AE

Jiang Chen;Li Haolin;Mai Yunfei

University of Shanghai for Science and Technology,Shanghai,200093

Online:2013-11-25 Published:2013-11-29
Supported by:
National Science and Technology Major Project ( No. 2011ZXO4004-051);Natural Science Foundation of Shanghai（No. 12ZR1420700）

摘要/Abstract

摘要：

针对精密外圆切入磨削加工的在线监测需求,提出一种采用声发射信号实现轴类零件材料去除率在线监测的方法。根据声发射信号强度与磨削力之间的联系,建立了声发射信号均方根曲线的预测模型,利用该预测模型研究了砂轮进给阶段和驻留阶段磨削系统时间常数的理论计算方法,推导了声发射信号均方根曲线与工件材料去除率的关系;编写了在线监测软件,利用声发射传感器实现了精密外圆切入磨削的材料去除率预测。实验证明,所建立的声发射信号均方根曲线模型具有良好的预测精度,基于该模型能够实现磨削系统时间常数在线评估,并实现精密轴类零件材料去除率的实时在线监测。

关键词: 外圆切入磨削, 声发射, 材料去除率, 磨削力

Abstract:

To satisfy the monitoring requirements of precision cylindrical plunge grinding, a monitoring method on material removal of axial parts was presented using AE signals. According to the relationship between AE signal intensity and grinding force, a prediction model of root mean square(RMS) curve of AE signal was proposed. The calculation method of grinding system time constants in infeed and dwell periods were proposed and the relationship between AE RMS curve and material removal of cylindrical plunge grinding was deduced theoretically. The on-line monitoring software was developed and a series of experiments was performed to demonstrate the effectiveness of the AE sensing
approach in estimating the time constant and material removal in grinding. Results indicate that the monitoring method can be used in the prediction of material removal in precision cylindrical plunge grinding.

Key words: plunge grinding, acoustic emission(AE), material removal, grinding force

中图分类号:

TH161.5

姜晨, 李郝林, 麦云飞. 基于声发射信号的外圆切入磨削去除率监测[J]. 中国机械工程, 2013, 24(22): 2992-2996.

Jiang Chen, Li Haolin, Mai Yunfei. Prediction on Material Removal Rate of Precision Cylindrical Plunge Grinding Based on Model of AE[J]. China Mechanical Engineering, 2013, 24(22): 2992-2996.

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