作者：李朝晖, 郝建军, 杨新桦
作者单位：重庆理工大学汽车学院, 重庆 400050
关键词：机器视觉; 曲轴锻件; 尺寸检测; 摄像机标定
摘要：
针对当前曲轴锻件尺寸检测自动化水平不高的问题,通过对图像边界识别、CCD标定等关键问题的研究,提出了一种利用图像处理技术自动检测锻件尺寸的方法。基于CCD摄像机的检测系统实现对曲轴锻件连续成像,通过图像拼接、边界处理,得到曲轴各处的特征信息,快速准确的计算出曲轴各位置的几何尺寸与形位公差。该方法提高了曲轴锻件的检测速度和精度,极大的提高了生产效率。
Research of visual measuring technical and application of crankshaft forging dimensions measuring
LI Zhao-hui, HAO Jian-jun, YANG Xin-hua
Automobile College, Chongqing University of Technology, Chongqing 400050, China
Abstract: In order to conquer the low automatic level in the inspection of crankshaft forging dimensions, an automatic inspecting method utilizing image process to crankshaft forging dimensions was proposed through the research on image edge identification and CCD calibration.The inspection system based on CCD camera realized consecutive imaging to crankshaft, obtained characteristics information of different parts of crankshaft by means of image sticking and edge process, and calculated geometric dimensions and location tolerances of the crankshaft rapidly and correctly through digital image operation.This method improves the inspection speed and precision of crankshaft forging, while enhancing the manufacture efficiency greatly.
Keywords: Machine vision; Crankshaft forging; Dimension detection; Camera calibration
2009, 35(6): 9-13 收稿日期: 2009-5-4;收到修改稿日期: 2009-7-15
基金项目: 重庆市教委科学技术研究项目(KJ070610)
作者简介: 李朝晖(1971-),男,重庆市人,高级实验师,硕士,主要从事内燃机零部件设计、分析及其检测。
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