微型钻头端刃侧刃缺陷的全景式视觉检测技术
Panoramic visual inspection technology for defects of end edge and side edge of micro drill
摘要点击 138  全文点击 28  投稿时间:2019-11-14  修订日期:2020-09-13
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DOI编号  10.7641/CTA.2020.90949
  2021,38(1):157-165
中文关键词  微型钻头  内锥全反射镜  机器视觉  视觉检测  图像拼接  缺陷检测
英文关键词  micro drill bit  internal cone total reflection mirror  machine vision  visual inspection  image stitching  defect inspection
基金项目  国家科技重大(04)专项“核工业专用零部件制造装备换脑工程”(2017ZX04011006–005), 国家科技重大(04)专项“高档数控系统关键共性技术创 新能力平台(二期)”(2015ZX04005007).
作者单位E-mail
崔旭东 鞍山师范学院 cui_xudong@sina.com 
曹普信 华中科技大学  
王平江 华中科技大学 pj_wang@hust.edu.cn 
中文摘要
      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.
英文摘要
      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.