| 摘要 |
PROBLEM TO BE SOLVED: To provide an inspection device of a screw thread capable of well recognizing even any deformation of the screw thread. SOLUTION: The inspection device of a screw thread has a light source part 2 for partially and continuously illuminating the outer surface of a rotating screw, an imaging sensor 5 for receiving the reflected light from the screw and an image processing part 6 for recognizing the shape of the screw thread on the basis of the rotation data and imaging data of the screw. The imaging sensor does not recognize the reflected light when the shape of the screw thread is normal but observes at least a region capable of receiving the reflected light caused by the unevenness of the screw thread only in a case that the undesired unevenness is present in the screw thread. COPYRIGHT: (C)2011,JPO&INPIT |
