圆弧形砂轮精密修整及其声发射在线监测技术

中国机械工程

圆弧形砂轮精密修整及其声发射在线监测技术

陈冰1,2;王各3;刘建明4;邓朝晖1,2;赵清亮5

1.湖南科技大学智能制造研究院，湘潭，411201
2.湖南科技大学难加工材料高效精密加工湖南省重点实验室，湘潭，411201
3.广西师范大学电子工程学院，桂林，541004
4.湖南时变通讯科技有限公司，湘潭，411100
5.哈尔滨工业大学机电工程学院，哈尔滨，150001

出版日期:2017-09-25 发布日期:2017-09-22
基金资助:
国家自然科学基金资助项目（51705148）;
湖南科技大学博士启动基金资助项目（E56118）;
湖南科技大学难加工材料高效精密加工湖南省重点实验室开放基金资助项目（E21755）
National Natural Science Foundation of China （No. 51705148）

Precision Truing of Arc-shaped Diamond Wheel and On-line Monitoring of Truing Processes by AE Signals

CHEN Bing1,2;WANG Ge3;LIU Jianming4;DENG Zhaohui1,2;ZHAO Qingliang5

1.Intelligent Manufacturing Institute of HNUST,Hunan University of Science and Technology,Xiangtan,Hunan,411201
2.Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material,Hunan University of Science and Technology,Xiangtan，Hunan,411201
3.College of Electronic Engineering,Guangxi Normal University,Guilin,Guangxi,541004
4.Time Varying Transmission Co.,Ltd.,Xiangtan,Hunan,411100
5.School of Mechatronics Engineering,Harbin Institute of Technology,Harbin,150001

Online:2017-09-25 Published:2017-09-22
Supported by:
National Natural Science Foundation of China （No. 51705148）

摘要/Abstract

摘要： 针对球面、非球面及自由曲面超精密磨削加工用圆弧形金刚石砂轮难以精密修整的问题，提出基于旋转绿碳化硅（GC）磨棒的端部在位精密修整方法及修整过程的声发射在线监测技术。基于圆弧形金刚石砂轮的结构特性，制订圆弧形金刚石砂轮的在位精密修整与修整过程的声发射在线监测技术方案。依据修整与在线监测方案，对D64圆弧形金刚石砂轮进行修整实验及其声发射信号采集，修整后跳动误差小于10μm，比修整前减小30μm左右，砂轮精度显著提高。利用声发射信号均方根值获取砂轮修整结束的特征预警阈值，实现了旋转GC磨棒端部在位精密修整过程的在线监测以及修整结束时间的准确判断，可以有效提高球面非球面磨削加工过程的效率。

关键词: 圆弧砂轮, 精密修整, 绿碳化硅(GC)磨棒, 声发射, 在线监测

Abstract: To realize the efficient and precision truing of arc-shaped diamond wheels for ultra-precision grinding spherical, aspherical and freeform surfaces, a novel on-machine precision form truing of arc-shaped diamond wheels was proposed utilizing rotary GC rod. On-line monitoring of the truing processes by AE was studied. Based on the structural properties of arc shaped wheel, the technical solutions of truing and monitoring were formulated for D64 wheels. The run-out errors after truing are below 10μm which is reduced about 30μm before truing, the form accuracy of wheels was improved remarkably. The AE signals were processed to monitor the truing processes, and the Arms threshold for judging the finishing truing time was obtained. The monitoring technology will improve efficiency of the truing and grinding processes.

Key words: arc-shaped diamond wheel, precision truing, green silicon carbon(GC) rod, acoustic emission(AE), on-line monitoring

中图分类号:

TG58

陈冰1,2;王各3;刘建明4;邓朝晖1,2;赵清亮5. 圆弧形砂轮精密修整及其声发射在线监测技术[J]. 中国机械工程.

CHEN Bing1,2;WANG Ge3;LIU Jianming4;DENG Zhaohui1,2;ZHAO Qingliang5. Precision Truing of Arc-shaped Diamond Wheel and On-line Monitoring of Truing Processes by AE Signals[J]. China Mechanical Engineering.

参考文献

[1]KUKS V G. Grinding Aspheric Surfaces of Optical Workpieces with a Full-size Tool[J]. Journal of Optical Technology, 2012, 79(3): 157-159.
[2]CHEN F J, YIN S H, HUANG H, et al. Profile Error Compensation in Ultra-precision Grinding of Aspheric Surfaces with On-machine Measurement[J]. International Journal of Machine Tools and Manufacture, 2010, 50(5): 480-486.
[3]BRINKSMEIER E, MUTLUGMNES Y, KLIOKE F, et al. Ultra-precision Grinding[J]. CIRP Annals—Manufacturing Technology, 2010, 59(2): 652-671.
[4]郭隐彪, 杨炜, 王振忠, 等. 大口径光学元件超精密加工技术与应用[J]. 机械工程学报, 2013, 49(19): 171-178.
GUO Yinbiao, YANG Wei, WANG Zhenzhong, et al. Technology and Application of Ultra-precision Machining for Large Size Optic[J]. Journal of Mechanical Engineering, 2013, 49(19): 171-178.
[5]赵清亮, 郭兵. 微结构光学功能元件模具的超精密磨削加工技术[J]. 机械工程学报, 2012, 47(21): 177-185.
ZHAO Qingliang, GUO Bing. Ultraprecision Grinding Technology of Microstructured Optical Functional Molds[J]. Journal of Mechanical Engineering, 2012, 47(21): 177-185.
[6]CHEN M, LI Z, YU B, et al. On-machine Precision Preparation and Dressing of Ball-headed Diamond Wheel for the Grinding of Fused Silica[J]. Chinese Journal of Mechanical Engineering, 2013, 26(5): 982-987.
[7]SAZEDUR R M, SALEH T, LIM H S, et al. Development of an On-machine Profile Measurement System in ELID Grinding for Machining Aspheric Surface with Software Compensation[J]. International Journal of Machine Tools and Manufacture, 2008, 48(7): 887-895.
[8]XIE J, ZHOU R M, XU J, et al. Form-truing Error Compensation of Diamond Grinding Wheel in CNC Envelope Grinding of Free-form Surface[J]. The International Journal of Advanced Manufacturing Technology, 2010, 48(9/12), 905-912.
[9]谢晋, 党希敏. 圆弧形金刚石砂轮的数控对磨成形修整试验[J]. 机械工程学报, 2008, 44(2): 102-107.
XIE Jin, DANG Ximin. Experiment on CNC Arc Truing of Diamond Grinding Wheel by Mutual Wear[J]. Journal of Mechanical Engineering, 2008, 44(2): 102-107.
[10]WEGENER K, HOFFMEISTER H W, KARPUSCHEWSKI B, et al. Conditioning and Monitoring of Grinding Wheels[J]. CIRP Annals—Manufacturing Technology, 2011, 60(2): 757-777.
[11]GOMES de OLIVEIRA J F, DORNFELS D A. Application of AE Contact Sensing in Reliable Grinding Monitoring[J]. CIRP Annals—Manufacturing Technology, 2001，50(1): 217-220.
[12]KWAK J S, HA M K. Neural Network Approach for Diagnosis of Grinding Operation by Acoustic Emission and Power Signals[J]. Journal Material Processing Technology, 2004， 147(1): 65-71.
[13]LEE D E, HWANG I, VALENTE C M O, et al. Precision Manufacturing Process Monitoring with Acoustic Emission[J]. International Journal of Machine Tools and Manufacture，2006，46(2): 176-188.
[14]WEBSTER J, DONG W P, LINDSAY R. Raw Acoustic Emission Signal Analysis of Grinding Process[J]. CIRP Annals—Manufacturing Technology, 1996， 45(1): 335-340.
[15]SUN X, STEPHENSON D J, OHNISHI O, et al. An Investigation into Parallel and Cross Grinding of BK7 Glass[J]. Precision engineering, 2006, 30(2): 145-153.