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学者姓名：石照耀
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Abstract ：
Due to the increasing requirements for the improvement of the accuracy of large coordinate-measuring machines (CMMs), the laser-tracing multi-station measurement technology, as one of the advanced precision measurement technologies, is worth studying in depth in terms of its practical application for the compensation of errors in large CMMs. Since it is difficult to maintain a constant temperature of about 20 degrees C in the actual workshop under the influence of solar radiation and convective heat transfer, there is a gradient in the spatial temperature distribution, and the overall temperature changes with the influence of external factors with synchronous hysteresis, it is difficult for the actual calibration environment to meet the standard environmental requirements. Therefore, the influence of temperature and other environmental factors on the accuracy of laser ranging and large-scale CMM calibration should not be ignored. In this paper, on the basis of analyzing the temperature distribution and change rule of large CMM measurement space under different working conditions, the radial basis function (RBF) neural network algorithm was used to build a non-uniform-temperature field model, and based on this model and the measurement principle of the laser-tracking instrument, the method of laser tracking and interferometric ranging accuracy enhancement was put forward under a non-uniform-temperature field. Finally, based on the multi-station technique of laser tracing, an accurate solution for the volumetric error of large CMMs under the condition of non -20 degrees C ambient temperature was realized. Simulation results proved that compared with the traditional temperature-compensation method, the proposed method improved the measurement accuracy of the volumetric error of a large-scale CMM using laser-tracing multi-station technology in a non-uniform-temperature field by 33.5%. This study provides a new approach for improving the accuracy of laser-tracer multi-station measurement systems.
Keyword ：
laser tracer laser tracer non-uniform-temperature field non-uniform-temperature field large-scale CMM large-scale CMM multi-station measurement technology multi-station measurement technology
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| GB/T 7714 | Chen, Hongfang , Zhang, Ao , Sun, Mengyang et al. Laser-Tracing Multi-Station Measurements in a Non-Uniform-Temperature Field [J]. | PHOTONICS , 2024 , 11 (8) . |
| MLA | Chen, Hongfang et al. "Laser-Tracing Multi-Station Measurements in a Non-Uniform-Temperature Field" . | PHOTONICS 11 . 8 (2024) . |
| APA | Chen, Hongfang , Zhang, Ao , Sun, Mengyang , Li, Changcheng , Wu, Huan , Liang, Ziqi et al. Laser-Tracing Multi-Station Measurements in a Non-Uniform-Temperature Field . | PHOTONICS , 2024 , 11 (8) . |
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Abstract ：
Flexsplines in harmonic gear reducers are usually characterized by a large number of teeth, small modulus, and poor stiffness, which makes them difficult to measure using conventional gear measuring centers. In order to efficiently evaluate the quality of flexsplines in harmonic gear reducers, a rapid measurement method for flexspline pitch using offset point laser sensors (PLS) is proposed. This paper investigates the principle of measuring the tooth flank of the flexspline under the offset of the PLS, establishes a model for collecting and analyzing gear surface data, builds an experimental system, calibrates the six pose parameters of the sensor using the geometric features of the flexspline's outer circular surface, and completes the reconstruction of the left and right gear surfaces of the flexspline based on the measured data. In the experiment, the gear surface obtained by the proposed method is largely consistent with that measured by the video imaging method, and the repeatability of both single pitch deviation and cumulative pitch deviation is within +/- 3 mu m.
Keyword ：
pose calibration pose calibration gear rapid measurement gear rapid measurement flexspline flexspline point laser sensors point laser sensors pitch deviation pitch deviation
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| GB/T 7714 | Wang, Xiaoyi , Zheng, Kunlei , Xiao, Longyuan et al. Flexspline Pitch Deviation Rapid Measurement Method Using Offset Point Laser Sensors [J]. | MACHINES , 2024 , 12 (6) . |
| MLA | Wang, Xiaoyi et al. "Flexspline Pitch Deviation Rapid Measurement Method Using Offset Point Laser Sensors" . | MACHINES 12 . 6 (2024) . |
| APA | Wang, Xiaoyi , Zheng, Kunlei , Xiao, Longyuan , Zhao, Chengxiang , Liu, Mingkang , Zhu, Dongjie et al. Flexspline Pitch Deviation Rapid Measurement Method Using Offset Point Laser Sensors . | MACHINES , 2024 , 12 (6) . |
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Abstract ：
A gear integrated error, a combination of individual and composite errors, carries richer information and has long been a key target of classic gear error measurement techniques. However, in the age of intelligent manufacturing, the classic methods for gear integrated error measurement are no longer able to meet the emerging requirements of large-scale gears and real-time online measurement. To address this gap, a novel approach to obtaining the gear integrated error based on GTC-Facet (Gaussian template convolution-Facet) is proposed. This method accurately pinpoints the sub-pixel contour of gears in images, enabling a quick derivation of the gear integrated error curve. From this curve, other individual and composite errors can be analyzed. The gear error information obtained through our method has higher measurement accuracy, achieving a positioning accuracy of 3.6 mu m for the gear profile. Moreover, during the measurement process, the measured gear remains unclamped, and the entire measurement process can be completed within 0.35 s, which is much faster than classic methods. Our method meets the demands of online measurements and provides a new avenue for gear error measurement.
Keyword ：
Gaussian convolution Gaussian convolution gear integrated error gear integrated error Canny operator Canny operator sub-pixel sub-pixel machine vision machine vision
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| GB/T 7714 | Fang, Yiming , Shi, Zhaoyao , Sun, Yanqiang et al. Gear Integrated Error Determination Using the Gaussian Template Convolution-Facet Method [J]. | APPLIED SCIENCES-BASEL , 2024 , 14 (3) . |
| MLA | Fang, Yiming et al. "Gear Integrated Error Determination Using the Gaussian Template Convolution-Facet Method" . | APPLIED SCIENCES-BASEL 14 . 3 (2024) . |
| APA | Fang, Yiming , Shi, Zhaoyao , Sun, Yanqiang , Zhang, Pan . Gear Integrated Error Determination Using the Gaussian Template Convolution-Facet Method . | APPLIED SCIENCES-BASEL , 2024 , 14 (3) . |
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Abstract ：
The verification of the correctness, adaptability, and robustness of software systems in modern precision measurement instruments is of great significance. Due to the difficulty in processing and calibrating high-precision fine-pitch gear artefacts, the function verification and accuracy calibration of vision measurement instruments for the fine-pitch gear have become a challenge. The calibration method of the gear vision measurement system based on the virtual gear artefact involves two steps, namely obtaining and applying the virtual artefact. The obtained virtual gear artefact has the same geometric features, error features, and image edge features as the real artefact. The calibration method based on the virtual artefact can complete the correctness verification of the gear vision measurement system, and is superior to the traditional methods in adaptability verification, robustness verification, and fault analysis. In a test, the characteristic error of the virtual gear artefact could be reproduced with the original shape in the evaluation results of the computer vision gear measurement (CVGM) system, while the reproduction error did not exceed 1.9 mu m. This can meet the requirements of the verification of the gear vision measurement software. The application of the virtual gear artefact can significantly improve the accuracy and robustness of the computer vision measuring instrument of the fine-pitch gear.
Keyword ：
master gear master gear vision measuring vision measuring gear gear virtual gear artefact virtual gear artefact
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| GB/T 7714 | Wang, Xiaoyi , Yao, Tianyang , Shi, Zhaoyao . Calibration Method Based on Virtual Gear Artefact for Computer Vision Measuring Instrument of Fine Pitch Gear [J]. | SENSORS , 2024 , 24 (7) . |
| MLA | Wang, Xiaoyi et al. "Calibration Method Based on Virtual Gear Artefact for Computer Vision Measuring Instrument of Fine Pitch Gear" . | SENSORS 24 . 7 (2024) . |
| APA | Wang, Xiaoyi , Yao, Tianyang , Shi, Zhaoyao . Calibration Method Based on Virtual Gear Artefact for Computer Vision Measuring Instrument of Fine Pitch Gear . | SENSORS , 2024 , 24 (7) . |
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Abstract ：
This article proposes a new self-calibration method for circular encoders based on inertia and a single read-head. The velocity curves of the circular encoder are fitted with polynomials and, based on the principle of circle closure and the periodicity of the distribution for angle intervals, the proportionality between the theoretical value and the actual value of each angle interval is obtained. In the experimental system constructed, the feasibility of the proposed method was verified through self-calibration experiments, repeatability experiments, and comparative experiments with the time-measurement dynamic reversal (TDR) method. In addition, this article also proposes an iterative method to improve the self-calibration accuracy. Experimental verification was carried out, and the results show that the new method can effectively compensate for the error of angle measurement in the circular encoder. The peak-to-peak value of the error of angle measurement was reduced from 239.343" to 11.867", and the repeatability of the calibration results of the new method was less than 2.77".
Keyword ：
single read head single read head circular encoder circular encoder error of angle measurement error of angle measurement self-calibration self-calibration
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| GB/T 7714 | Wang, Xiaoyi , Xiao, Longyuan , Zheng, Kunlei et al. Self-Calibration Method for Circular Encoders Based on Inertia and a Single Read-Head [J]. | SENSORS , 2024 , 24 (10) . |
| MLA | Wang, Xiaoyi et al. "Self-Calibration Method for Circular Encoders Based on Inertia and a Single Read-Head" . | SENSORS 24 . 10 (2024) . |
| APA | Wang, Xiaoyi , Xiao, Longyuan , Zheng, Kunlei , Zhao, Chengxiang , Liu, Mingkang , Yao, Tianyang et al. Self-Calibration Method for Circular Encoders Based on Inertia and a Single Read-Head . | SENSORS , 2024 , 24 (10) . |
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Abstract ：
It is of great importance to ensure the accuracy of measurements taken by the line laser three-dimensional (3D) gear measurement system through the calibration of system in an accurate manner. This paper established a relevant measurement model based on the principle of line laser 3D gear measurement using generalized polar coordinates, designed a dedicated Polyhedral Artefact (PA), and proposed an accurate calibration method to address the challenges posed by the representation of 6 degrees of freedom (DOF) parameters for line laser sensor data in measurement space. Among them, the PA includes features such as cylindrical plane, planar plane, and Vgroove etc., which can meet the requirements of high-precision machining while maintaining consistency with gear installation accuracy to further improve the accuracy of sensor pose parameters. The calibration method uses nonlinear optimization equations with point cloud data to simultaneously solve the required parameters for accurate measurement. Calibration and gear measurement experiments reveal that the standard deviation and range deviation of the total tooth profile deviation, obtained from 10 repeated measurements of a single tooth flank, are 0.244 mu m and 0.86 mu m, respectively. The results of the tooth profile measurements after the calibration of the system show good consistency compared with the contact measurements, which verifies the effectiveness of the method.
Keyword ：
Polyhedron Artefact Polyhedron Artefact Line Laser Measurment Line Laser Measurment Gear Gear Calibration Calibration Line Laser Sensor Line Laser Sensor Gear Measurment Gear Measurment
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| GB/T 7714 | Li, Meichuan , Shi, Zhaoyao , Sun, Yanqiang et al. A calibration method of line laser 3D gear measurement system [J]. | MEASUREMENT , 2024 , 242 . |
| MLA | Li, Meichuan et al. "A calibration method of line laser 3D gear measurement system" . | MEASUREMENT 242 (2024) . |
| APA | Li, Meichuan , Shi, Zhaoyao , Sun, Yanqiang , Yu, Bo . A calibration method of line laser 3D gear measurement system . | MEASUREMENT , 2024 , 242 . |
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Abstract ：
本申请提供了一种内齿加工装置，包括：机台；夹具机构，用于夹持环形工件，所述夹具机构安装于所述机台上；插齿机构，用于在所述环形工件的内侧切削齿槽，所述插齿机构安装于所述机台上；去毛刺机构，用于去除所述环形工件远离所述插齿机构一端的毛刺，所述去毛刺机构安装于所述夹具机构中；控制机构，用于控制所述插齿机构与所述去毛刺机构，所述控制机构与所述插齿机构和所述去毛刺机构电连接，所述控制机构安装于所述机台上。本申请提供的内齿加工装置，在环形工件一次装夹后即可进行插齿和去毛刺加工步骤，不需要在环形工件插齿完毕后拆卸下来再对退刀端的毛刺进行打磨，节约了生产时间和工作量。
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| GB/T 7714 | 石照耀 , 辛栋 , 叶曙兵 . 内齿加工装置 : CN202310862942.X[P]. | 2023-07-13 . |
| MLA | 石照耀 et al. "内齿加工装置" : CN202310862942.X. | 2023-07-13 . |
| APA | 石照耀 , 辛栋 , 叶曙兵 . 内齿加工装置 : CN202310862942.X. | 2023-07-13 . |
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Abstract ：
本发明公开一种齿轮齿廓粗糙度测量方法、系统、设备及介质，涉及齿轮精密测量技术领域；所述方法包括：获取目标齿轮副的设计参数和各个齿廓工作点的试验参数；对测量表面轮廓和理论齿廓曲线进行拟合，得到表面结构曲线；对于理论齿廓曲线上的各个齿廓工作点，根据设计参数和试验参数，计算赫兹接触宽度，并根据赫兹接触宽度确定表面粗糙度的评定长度；采用设定波长的滤波器对表面结构曲线进行滤波，得到表面粗糙度轮廓；对任一评定长度，根据表面粗糙度轮廓确定工作区域内各个齿廓工作点的表面粗糙度参数；本发明通过拟合以及依据齿廓工作点的赫兹接触宽度最终确定表面粗糙度参数，以准确地实现对齿轮的接触分析。
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| GB/T 7714 | 林家春 , 范新玉 , 李云飞 et al. 一种齿轮齿廓粗糙度测量方法、系统、设备及介质 : CN202310492007.9[P]. | 2023-05-05 . |
| MLA | 林家春 et al. "一种齿轮齿廓粗糙度测量方法、系统、设备及介质" : CN202310492007.9. | 2023-05-05 . |
| APA | 林家春 , 范新玉 , 李云飞 , 王鹏 , 何宝凤 , 石照耀 . 一种齿轮齿廓粗糙度测量方法、系统、设备及介质 : CN202310492007.9. | 2023-05-05 . |
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Abstract ：
本发明公开了一种精密减速器，包括底座、输入端球轴承、平面沟槽凸轮、圆柱凸轮、摆杆、片齿、深沟球轴承、输出齿轮、输出法兰、输出端球轴承、上端盖。所述精密减速器是两级减速型。第一级减速发生在平面沟槽凸轮与摆杆之间，第二级减速发生在摆杆和片齿之间。本发明打破了传统减速器所采用的多个齿轮啮合传动，将凸轮和齿轮巧妙的结合在一起；此外，改善了传统减速器因轮齿的接触面积小而导致各齿轮的轮齿所受的合成应力较大，相对于传统齿轮系，齿轮的工作寿命更长。和目前常用的工业机器人关节精密减速器相比，在结构简单紧凑，尺寸小的同时，能够传递更大的扭矩，实现大减速比的传动，可满足工业机器人关节对于高精密减速器的需求。
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| GB/T 7714 | 石照耀 , 司垚鑫 , 王鹏 et al. 一种精密减速器 : CN202310119329.9[P]. | 2023-02-15 . |
| MLA | 石照耀 et al. "一种精密减速器" : CN202310119329.9. | 2023-02-15 . |
| APA | 石照耀 , 司垚鑫 , 王鹏 , 杨鑫雨 . 一种精密减速器 : CN202310119329.9. | 2023-02-15 . |
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Abstract ：
本发明公开了一种基于凸轮‑齿轮组合传动的精密减速器，包括：底座、输入端球轴承、圆柱凸轮、平面沟槽凸轮、摆杆、片齿、片齿组件、深沟球轴承、输出齿轮、输出端球轴承、上端盖。该基于凸轮‑齿轮组合传动的精密减速器是两级减速。第一级减速发生在平面沟槽凸轮与摆杆之间，第二级减速发生在摆杆和片齿之间。本发明基于凸轮传动原理和齿轮啮合传动原理，提出了一种凸轮‑齿轮组合传动的创新性原理，并且通过创新的内部结构，极大改善了传统轮系中齿轮之间接触面积非常小的情况，在传动过程中尽可能多的增加了接触点和线，使得各轮齿所受的合成应力大大减小。本发明减速比大，能够传递大的扭矩，满足市场上工业机器人关节减速器的需求。
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| GB/T 7714 | 石照耀 , 司垚鑫 , 王鹏 et al. 一种基于凸轮-齿轮组合传动的精密减速器 : CN202310119328.4[P]. | 2023-02-15 . |
| MLA | 石照耀 et al. "一种基于凸轮-齿轮组合传动的精密减速器" : CN202310119328.4. | 2023-02-15 . |
| APA | 石照耀 , 司垚鑫 , 王鹏 , 杨鑫雨 . 一种基于凸轮-齿轮组合传动的精密减速器 : CN202310119328.4. | 2023-02-15 . |
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