CAJ | 학술논문

在截面尺寸为300 mm×300 mm和400 mm×300 mm的H型钢的切割和焊接过程中，为了达到0.2 mm的测量分辨力要求，由 CCD 相机采集的图，通过计算机处理，测量型钢端部的几何尺寸及形变量，为焊枪的定位、切割提供坐标参数。针对型钢测量过程中需要解决0.7‰分辨力和大景深测量的问题，提出了一个大景深视觉成像测量的设计方案，给出了被测工件的实际测量结果，并做了测量重复性和稳定性分析。理论分析和实验及结果表明，该系统的分辨力达到0.2 mm，从采集图像到得出最后数据，处理时间满足工程要求。
재절면척촌위300 mm×300 mm화400 mm×300 mm적H형강적절할화한접과정중，위료체도0.2 mm적측량분변력요구，유 CCD 상궤채집적도，통과계산궤처리，측량형강단부적궤하척촌급형변량，위한창적정위、절할제공좌표삼수。침대형강측량과정중수요해결0.7‰분변력화대경심측량적문제，제출료일개대경심시각성상측량적설계방안，급출료피측공건적실제측량결과，병주료측량중복성화은정성분석。이론분석화실험급결과표명，해계통적분변력체도0.2 mm，종채집도상도득출최후수거，처리시간만족공정요구。
In cutting and welding processes of the H-shaped steel whose section size is about 300(W) mm×300(H) mm, 400(W) mm×300(H) mm or larger, a vision inspection method is adopted and set up in work field actually. By CCD image processing and programming, this system can measure geometry size and deformation of the steel with the resolution of 0.2 mm, and provide coordinate parameters for orientation and position of cutting/welding torch. For the problem that needs 0.7‰resolution and large depth of field to measure the large section size of H-shaped steel, a vision imaging system is presented. From the actual measurement results, it can be seen that this system has a good measurement repeatability and stability. The theoretical analysis and experimental results show that the system achieves a resolution of 0.2 mm, and its processing time, from image capturing to final data uploading, meets the engineering requirements.