大齿轮齿形扫描式在机测量数据处理方法研究
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摘要
针对磨齿机大齿轮齿形加工误差扫描式在机测量过程中存在的数据量大,易受机床运动影响等问题,提出一种基于趋势放大的数据折点辨识算法自动辨识有效数据,采用小波变换提取齿形宏观形状轮廓,以最小二乘法分离齿廓三项偏差的数据处理方法,获取准确的齿形误差形貌。在磨齿机上进行了齿形在机实际测量。结果表明,该方法不仅能够全面精准地评价齿形误差,而且还能够准确表达齿面误差形貌及误差出现的位置,且重复性、稳定性好。
On-machine scanning measurement for large gear profile error on gear grinding has large amount of data and is motion-sensitive. In this regard,a data processing method is proposed,which includes identification effective data based on finding the break points through enlarging the change trend,using wavelet analysis method to extract the macroscopic shape outline and machining error analysis. Experiments for gear profile error on-machine measurement in the grinding machine showed that this method can not only more comprehensively and accurately evaluate the tooth profile error,but also can accurately represent the morphologies of tooth surface and error location,and that it has high repeatability and good stability.
On-machine scanning measurement for large gear profile error on gear grinding has large amount of data and is motion-sensitive. In this regard,a data processing method is proposed,which includes identification effective data based on finding the break points through enlarging the change trend,using wavelet analysis method to extract the macroscopic shape outline and machining error analysis. Experiments for gear profile error on-machine measurement in the grinding machine showed that this method can not only more comprehensively and accurately evaluate the tooth profile error,but also can accurately represent the morphologies of tooth surface and error location,and that it has high repeatability and good stability.
引文
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[3]Liu H B,Wang Y Q,Jia Z Y,et al.Integration strategy of on-machine measurement(OMM)and numerical control(NC)machining for the large thin-walled parts with surface correlative constraint[J].The International Journal of Advanced Manufacturing Technology,2015,80(9-12):1721-1731
[4]Lai J T,Fu J Z,Shen H Y,et al.Machining error inspection of t-spline surface by on-machine measurement[J].International Journal of Precision Engineering and Manufacturing,2015,16(3):433-439
[5]Guiassa R,Mayer J R R,Balazinski M,et al.Closed door machining error compensation of complex surfaces using the cutting compliance coefficient and on-machine measurement for a milling process[J].International Journal of Computer Integrated Manufacturing,2014,27(11):1022-1030
[6]王志永,刘威,曾韬,等.螺旋锥齿轮大轮齿形误差的在机测量[J].仪器仪表学报,2015,36(5):1047-1053Wang Z Y,Liu W,Zeng T,et al.On-machine measurement of tooth profile errors for the spiral bevel gears[J].Chinese Journal of Scientific Instrument,2015,36(5):1047-1053(in Chinese)
[7]王志永,于水琴,曾韬.基于展成原理的大规格螺旋锥齿轮在机测量[J].仪器仪表学报,2009,30(8):1739-1744Wang Z Y,Yu S Q,Zeng T.On-machine measurement of large-scale spiral bevel gears based on generation principle[J].Chinese Journal of Scientific Instrument,2009,30(8):1739-1744(in Chinese)
[8]金嘉琦,赵丰慧.大型齿轮在机测量技术的发展研究[J].机械设计与制造,2010,(12):264-266Jin J Q,Zhao F H.The development and research of onmachine measurement of the large gear[J].Machinery Design&Manufacture,2010,(12):264-266(in Chinese)
[9]高峰,李艳,田沙,等.数控成形砂轮磨齿机的在机测量方法研究[J].仪器仪表学报,2008,29(3):540-544Gao F,Li Y,Tian S,et al.Study on the on-machine measurement method of NC wheel gear form grinding machine[J].Chinese Journal of Scientific Instrument,2008,29(3):540-544(in Chinese)
[10]Bi Q Z,Huang N D,Sun C,et al.Identification and compensation of geometric errors of rotary axes on fiveaxis machine by on-machine measurement[J].International Journal of Machine Tools and Manufacture,2015,89:182-191
[11]Huang N D,Zhang S K,Bi Q Z,et al.Identification of geometric errors of rotary axes on 5-axis machine tools by on-machine measurement[J].The International Journal of Advanced Manufacturing Technology,2016,84(1-4):505-512
[12]Ibaraki S,Iritani T,Matsushita T.Error map construction for rotary axes on five-axis machine tools by on-themachine measurement using a touch-trigger probe[J].International Journal of Machine Tools and Manufacture,2013,68:21-29
[13]Ibaraki S,Ota Y.Error Calibration for five-axis machine tools by on-the-machine measurement using a touchtrigger probe[J].International Journal of Automation Technology,2014,8:20-27
[14]裘祖荣,石照耀,李岩.机械制造领域测量技术的发展研究[J].机械工程学报,2010,46(14):1-11Qiu Z R,Shi Z Y,Li Y.Research on the development of measurement technology mechanical manufacture[J].Journal of Mechanical Engineering,2010,46(14):1-11(in Chinese)
[15]王平江,雷宇晴,邹尚波,等.在机测量技术现状与发展趋势[J].组合机床与自动化加工技术,2015,(7):1-4Wang P J,Lei Y Q,Zou S B,et al.Status and development trend of on-machine measurement technology[J].Modular Machine Tool&Automatic Manufacturing Technique,2015,(7):1-4(in Chinese)
[16]王晓强,李艳娜,崔凤奎,等.基于二代小波的表面粗糙度信息提取[J].河南科技大学学报:自然科学版,2015,36(3):14-17Wang X Q,Li Y N,Cui F K,et al.Extraction of surface roughness information based on second generation wavelet transform[J].Journal of Henan University of Science and Technology:Natural Science,2015,36(3):14-17(in Chinese)