CAJ | 학술논문

针对孔内壁表面上的砂眼、裂纹等疵病造成的精密零件安装调试困难问题，提出一种新型疵病检测系统。首先通过水平运动系统带动测头运动到待测小孔上方，测头固定不动，然后通过竖直运动系统带动测头并采用内窥镜的测量原理提取小孔内表面的图像，最后利用MATLAB进行图像处理。结果表明，此新型检测装置光学测头长为150mm，直径为14mm，能够实现内径为15~20mm，孔深100mm的细长孔内壁测量，并且能够标记孔内壁疵病的具体位置，测量准确且可操作性强。
침대공내벽표면상적사안、렬문등자병조성적정밀령건안장조시곤난문제，제출일충신형자병검측계통。수선통과수평운동계통대동측두운동도대측소공상방，측두고정불동，연후통과수직운동계통대동측두병채용내규경적측량원리제취소공내표면적도상，최후이용MATLAB진행도상처리。결과표명，차신형검측장치광학측두장위150mm，직경위14mm，능구실현내경위15~20mm，공심100mm적세장공내벽측량，병차능구표기공내벽자병적구체위치，측량준학차가조작성강。
For some defects such as cracks and trachoma on the holes inner surface of precision parts and work-pieces, it has difficulties for installation and debugging. A novel kind of flaw detection system is proposed. Firstly the measur-ing head is moved to the measured pinhole above by the horizontal movement system. The measuring head was immo-bilized. And then the probe is driven into the pinhole by the vertical motion system. At the same time,images of key-hole surface with endoscopic principle are obtained. Finally, images are processed by using MATLAB. The result shows that the novel detection device has optical probe of 150mm length and its diameter is 14mm.The measurement of the slender hole can be realizes, which inner diameter is 15mm~20mm and length is 100mm. The specific location of holes defects can be marked. Accurate measurement and maneuverability can be acquired.