微型钻头端刃侧刃缺陷的全景式视觉检测技术

在微钻生产中采用机器视觉方法进行缺陷检测时,其难点在于一次拍摄就获得微钻侧刃的完整的、高分辨率的图像.当采用高倍率光学镜头时,又产生视野与检测范围的矛盾.为解决该矛盾,本文创造性地设计了一套内锥镜面反射成像装置,既可获得微钻端刃的清晰图像,又可获得整个微钻侧刃的清晰图像,使得微钻缺陷的全自动视觉检测成为可能.试验结果表明,本文研发的微钻全景式视觉检测系统,能够满足微钻生产中的自动化检测需求.

Panoramic visual inspection technology for defects of end edge and side edge of micro drill

When machine vision is used for defect detection in the production of micro-drills, the difficulty lies in obtaining a complete, high-resolution image of the side edge of the micro-drill with one shot. When a high-magnification optical lens is used, there is a contradiction between the field of view and the detection range. In order to solve this contradiction, this paper creatively designed a set of inner cone mirror reflection imaging devices, which can obtain clear images of the end edge of the micro-drill and the entire side edge of the micro-drill, enabling the automatic visual inspection of the micro-drill become possible. The test results show that the micro-drill panoramic visual inspection system developed in this paper can meet the needs of automated inspection in the production of micro-drills. The test results show that the micro-drill panoramic visual inspection system developed in this paper can meet the needs of automated inspection in the production of micro-drills.