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北京工业大学 北京市精密测控技术与仪器工程技术研究中心,北京 100124
[ "汤 洁(1975-),女,江苏射阳人,博士,副教授,1998年于东南大学获得学士学位,2009年于北京工业大学获得博士学位,主要从事精密测试技术及仪器、齿轮测量技术及仪器方面的研究。E-mail: tangjie@bjut.edu.cn" ]
[ "刘小兵(1995-),男,河南周口人,硕士研究生,2017年于安阳工学院获得学士学位,2020年于北京工业大学获得硕士学位,主要从事精密测试技术及仪器的研究。E-mail:liuxiaobing@emails.bjut.edu.cn" ]
收稿日期:2020-06-22,
修回日期:2020-08-14,
纸质出版日期:2021-01-15
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汤洁,刘小兵,李睿.未知参数小模数齿轮齿距和齿廓偏差视觉测量[J].光学精密工程,2021,29(01):100-109.
TANG Jie,LIU Xiao-bing,LI Rui.Vision measurement of pitch and profile deviations for small modulus gears with unknown parameters[J].Optics and Precision Engineering,2021,29(01):100-109.
汤洁,刘小兵,李睿.未知参数小模数齿轮齿距和齿廓偏差视觉测量[J].光学精密工程,2021,29(01):100-109. DOI: 10.37188/OPE.20212901.0100.
TANG Jie,LIU Xiao-bing,LI Rui.Vision measurement of pitch and profile deviations for small modulus gears with unknown parameters[J].Optics and Precision Engineering,2021,29(01):100-109. DOI: 10.37188/OPE.20212901.0100.
小模数齿轮齿槽间隙小,接触式测量难度高,且易损坏测头,本文主要研究基于视觉的未知参数小模数齿轮的齿距偏差和齿廓偏差测量。基于亚像素数字图像处理技术定位齿轮测量基准,即齿轮几何中心,并测量得到齿数、模数、齿顶圆直径和齿根圆直径;依据齿轮精度标准ISO1328-1:2013中偏差项目定义,给出了基于视觉测量的齿轮齿距偏差和齿廓偏差评定方法,开发了小模数齿轮视觉测量数据处理软件。对模数为0.5 mm的渐开线圆柱直齿轮进行了齿距和齿廓偏差视觉测量试验,并与齿轮测量中心的测量结果对比,左右齿面测量结果的绝对误差最大为4 μm,最小为1 μm,评定齿轮精度等级均为8级。本文给出的未知参数小模数齿轮视觉测量系统和偏差评定方法可在一定范围内用于小模数齿轮测量。
Using contact measurements for small modulus gears is difficult owing to the limited tooth spaces. This work focuses on the vision measurement of small modulus gears with unknown parameters. Based on the sub-pixel technique used in digital image processing, the gear measurement datum, which is the geometric center of the gear, is located. Thereafter, the tooth number, modulus, diameter of the tooth addendum circle, and diameter of the tooth dedendum circle are calculated. According to the definition of gear accuracy in ISO 1328-1:2013, this study introduces an evaluation method and a measurement process for gear pitch deviations and profile deviations based on visual measurements, and an evaluation software is developed. A visual measurement test on the pitch and profile deviations of involute cylindrical spur gears with a modulus of 0.5 mm was carried out, and the results were compared with those from a gear measurement center. The comparison indicated that the absolute error in the left and right tooth surface measurements had a maximum value of 4 μm and a minimum value of 1 μm; the gear accuracy for both cases was judged to be grade 8. This vision measurement system can be used for small modulus gears within a certain range.
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Standardization Administration of the People's Republic of China . National Standard (Recommended) of the People's Republic of China: Injection molding plastic cylindrical gears tolerance classification system—Definitions and allowable values of deviations relevant to flanks of gear teeth & double flank radial composite test GB/T 38192⁃2019 . [S]. Beijing : China Quality and Standards Publishing & Media Co. Ltd . (in Chinese)
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