| 摘要 |
A device and method for inspecting cam profiles by sensing and storing data points representing the profiles of camshaft cams and comparing this information to known acceptable limits. The device includes an array of laser range finders that are alignable with respective cams of a camshaft to be inspected. The range finders measure the distances to respective outer cam surfaces by reflecting laser light off those surfaces as the cams rotate, calculating angles of reflection by sensing the changing positions of reflected laser light and calculating distances to the respective reflecting points from the angles of reflection. The device also includes a circuit connected to the range finders that determines the dimensions of the cams by analyzing the electrical signals from the range finders as the camshaft rotates.
|
