| 摘要 |
PROBLEM TO BE SOLVED: To provide an inspection apparatus, for a gear, by which the quality of the gear can be inspected with good accuracy by photographing the gear only once. SOLUTION: A camera 11 photographs a face, on one side, which is at right angles to the axial direction of a gear (a). An image which is photographed by the camera 11 is fetched by an image processor 14, and the tip part of every tooth at the gear (a) is extracted from the fetched image. The image processor 14 accumulates an image density regarding respective pixels of the image at the extracted tip part of every tooth. The magnitude of the accumulated image density expresses the degree of a 'droop' at the tip part in the radial direction of every tooth, i.e., the quality of every tooth (the quality of the gear (a)). Then, the image processor 14 judges the quality of the gear (a) on the basis of the accumulates value of the found image density. |
