基于视觉识别的对准精度研究
发布时间：2018-08-02 15:51
【摘要】：为了解决在微小器件装配系统中相机的光轴与理想位置产生偏角的问题,提出了空间坐标转换方法进行相机的位置校准,采用螺纹制动的机械方式进行微调,保证了夹持器的轴线和相机的光轴高度平行,以达到高对准精度.通过分析电荷藕合器件图像传感器(CCD)实时获取的零件装配图像,提出了基于Canny算子轮廓边界差值的微距离测量方法,该方法具有非接触测量的优点,能够有效测量零件装配的对准精度.进行了相关的实验验证,实验结果表明该微小器件装配系统的对准精度小于0.1 mm.
[Abstract]:In order to solve the problem of the deflection between the optical axis and the ideal position of the camera in the assembly system of micro devices, a method of space coordinate conversion is proposed to calibrate the position of the camera, and the mechanical method of thread braking is used to fine-tune the camera. The axis of the gripper is parallel to the optical axis of the camera to achieve high alignment accuracy. Based on the analysis of the assembly images obtained by the charge coupled device image sensor (CCD) in real time, a micro-distance measurement method based on the contour difference of the Canny operator is proposed. This method has the advantages of non-contact measurement. Can effectively measure the alignment accuracy of parts assembly. The experimental results show that the alignment accuracy of the assembly system is less than 0.1 mm.
【作者单位】： 沈阳理工大学辽宁省先进制造与装备重点实验室;淮海工业集团有限公司MEMS研究中心;
【基金】：辽宁省科学技术基金资助项目(201102182)
【分类号】：TH-39;TP391.41
，
本文编号：2159930
[Abstract]:In order to solve the problem of the deflection between the optical axis and the ideal position of the camera in the assembly system of micro devices, a method of space coordinate conversion is proposed to calibrate the position of the camera, and the mechanical method of thread braking is used to fine-tune the camera. The axis of the gripper is parallel to the optical axis of the camera to achieve high alignment accuracy. Based on the analysis of the assembly images obtained by the charge coupled device image sensor (CCD) in real time, a micro-distance measurement method based on the contour difference of the Canny operator is proposed. This method has the advantages of non-contact measurement. Can effectively measure the alignment accuracy of parts assembly. The experimental results show that the alignment accuracy of the assembly system is less than 0.1 mm.
【作者单位】： 沈阳理工大学辽宁省先进制造与装备重点实验室;淮海工业集团有限公司MEMS研究中心;
【基金】：辽宁省科学技术基金资助项目(201102182)
【分类号】：TH-39;TP391.41
，
本文编号：2159930
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