跨尺度微小型零件的识别定位与装配

发布时间：2018-12-30 18:45

【摘要】：针对微小型零件装配过程中基体件尺寸过大与显微视觉视场较小相矛盾的问题,研究了显微视场下的微小型零件识别定位技术。为提高微装配精度,首先,通过图像预处理去除噪声干扰;然后,采用最小二乘法和形状模板匹配方法检测目标件参考基准点与偏角;最后,通过零件位姿信息的坐标转换,实现了微小型零件的精确装配。经过实验验证,关键零件的装配精度满足工艺要求,配合偏差优于5μm,平行度优于0.003°,该装配方案可靠地完成了跨尺度微小型零件的高精度装配。
[Abstract]:Aiming at the contradiction between the excessive size of the base part and the small field of view in the assembly of micro parts, the identification and localization technology of micro type parts under the micro view field is studied in this paper. In order to improve the precision of micro-assembly, the noise interference is removed by image preprocessing, and the reference point and deflection angle are detected by least square method and shape template matching method. Finally, the precise assembly of micro parts is realized by coordinate transformation of position and pose information. The experimental results show that the assembly accuracy of the key parts meets the requirements of the process, the deviation is less than 5 渭 m and the degree of parallelism is less than 0.003 掳. The assembly scheme can reliably complete the high-precision assembly of the cross-scale micro-parts.
【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;
【基金】：国家863计划资助项目(2009AA04Z167)
【分类号】：TH16

【参考文献】