激光视觉方法用于检测齿轮加工误差

发布时间：2018-06-23 17:59

本文选题：齿轮检测 + 激光测距　；参考：《光电工程》2015年01期

【摘要】：齿轮是工业基础零件,其加工精度对设备的整体精度和可靠性有重要的影响。为了提高加工后齿轮的检测速度和检测精度,提出了一种激光测距齿轮齿向精度检测方法,并在此方法基础上研制了齿轮齿向检测系统。利用激光在金属及反光物体方面的测量优势,选用激光作为测量光源,利用激光三角法获得齿轮的测量点位置的相对坐标信息。为了全面获得齿轮各个部位的信息,结合气浮转台的圆周运动和精密电控升降台的升降直线运动,完成对齿轮齿向的数据扫描。为了获得齿轮的绝对坐标值,提出了齿轮齿向测量标定算法,用于计算出传感器与齿轮分度圆之间位置关系,从而进行齿向测量。结果表明,该测量方法能够满足工业中齿轮的高精度无损检测要求,能够完成齿轮精度等级分类要求。本研究所提出的测量方法,可以推广到其他金属反光物体高精度尺寸检测系统中。
[Abstract]:Gear is a basic part of industry, and its machining accuracy has an important effect on the overall accuracy and reliability of the equipment. In order to improve the detection speed and precision of the machined gear, a laser ranging method for measuring the tooth direction of the gear is proposed, and a gear tooth direction detection system is developed on the basis of the method. Based on the advantage of laser in measuring metal and reflective objects, the relative coordinate information of measuring points of gears is obtained by using laser triangulation. In order to obtain the information of all parts of the gear, combined with the circular motion of the air floatation table and the straight line movement of the precise electronic control elevator, the data scanning of the gear tooth direction was completed. In order to obtain the absolute coordinate value of the gear, a calibration algorithm for gear tooth orientation measurement is proposed, which is used to calculate the position relationship between the sensor and the gear indexing circle, so that the tooth direction measurement can be carried out. The results show that the method can meet the requirements of high precision nondestructive testing of gears in industry and can meet the requirements of gear accuracy classification. The measurement method proposed in this paper can be extended to other high precision measurement systems for metal reflective objects.
【作者单位】：天津工业大学电工电能新技术天津市重点实验室;
【基金】：国家自然科学基金(60808020;61078041) 天津市应用基础及前沿技术研究计划(10JCYBJC07200)
【分类号】：TP274;TG86

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