基于激光传感器的机械加工工件尺寸偏差在线检测方法  

Online detection method for size deviation of machined workpieces based on laser sensors

作　　者：毛安石 张国福[1] 孟令威[1] MAO Anshi;ZHANG Guofu;MENG Lingwei(College of Humanities&Information Changchun University of Technology,Changchun 130122,China)

机构地区：[1]长春工业大学人文信息学院,长春130122

出　　处：《激光杂志》2024年第10期215-220,共6页Laser Journal

基　　金：吉林省发展和改革委员会项目(No.2021C45-1)。

摘　　要：伴随着现代机械加工行业的飞速发展,其对工件尺寸精度要求逐渐提升。但是,现阶段对于机械加工过程中工件的尺寸精度还存在一定不足,而对于工件尺寸偏差检测的方法,也常常受到图像噪声、算法缺陷的影响,导致工件尺寸偏差检测准确性的降低。故提出基于激光传感器的机械加工工件尺寸偏差在线检测方法研究。选取与配置激光传感器,以此为基础,获取机械加工工件尺寸测量激光数据,利用限幅滤波法去除工件尺寸测量激光数据中的噪声数据,计算机械加工工件的测量尺寸(长、宽与高),加载工件期望尺寸数据,衡量两者之间的差值,以此为依据判定机械加工工件尺寸是否存在偏差,实现工件尺寸偏差的在线检测。实验数据显示:提出方法应用后获得的机械加工工件尺寸(长、宽与高)偏差检测结果与实际偏差相同,最大误差不超过0.5 mm,可分辨的最小偏差为0.2 mm,充分证实了提出方法的有效性。With the rapid development of modern mechanical processing industry,its requirements for workpiece size accuracy are gradually increasing.However,there are still certain deficiencies in the dimensional accuracy of workpieces in the current mechanical processing process,and the methods for detecting workpiece size deviation are often affected by image noise and algorithm defects,leading to a decrease in the accuracy of workpiece size deviation detection.Therefore,a research on online detection method for size deviation of machined workpieces based on laser sensors is proposed.Select and configure laser sensors as the basis to obtain laser data for measuring the size of machined workpieces.Use the amplitude limiting filtering method to remove noise data from the laser data for measuring the size of workpieces,calculate the measured dimensions(length,width,and height)of machined workpieces,load the expected size data of workpieces,and measure the difference between the two.Based on this,determine whether there is a deviation in the size of machined workpieces,Thus achieving online detection of workpiece size deviation.The experimental data shows that the deviation detection results of the mechanical processing workpiece size(length,width,and height)obtained after the application of the proposed method are the same as the actual deviation,with a maximum error of no more than 0.5 mm and a distinguishable minimum deviation of 0.2 mm,fully confirming the effectiveness of the proposed method.

关 键 词：尺寸偏差 机械加工工件 传感器参数标定 激光传感器 在线检测 偏差计算 

分 类 号：TN209[电子电信—物理电子学]