Crankshaft testing method
AssigneeHOMMEL-ETAMIC GmbH
InventorsHubert Keller, Michael Rudolf
Life of this patent
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Abstract
In a crankshaft testing method for the classification testing of at least one bearing surface of a crankshaft or the like, a reflection of a reference object at the bearing surface to be tested (reflection image) is detected by at least one sensor, using a sensor system. The detected reflection image is evaluated with regard to its contrast, and the crankshaft is classified as “unsatisfactory” when the contrast is below a predefined or predefinable threshold value.
Claims12
Crankshaft testing method for the classification testing of at least one bearing surface of a crankshaft, wherein:
- a) a reflection of a reference line pattern at the bearing surface to be tested (reflection image) is detected by at least one sensor, using a sensor system, the reference line pattern having a plurality of lines which are spaced apart from one another, and the reference line pattern is imaged over the at least one bearing surface, the reference line pattern being imaged over the at least one bearing surface of the crankshaft to be examined in such a way that the lines extend, at least approximately, in the circumferential direction of the bearing surface,
- b) the detected reflection image is evaluated with regard to its contrast, and
- c) the crankshaft is classified as “unsatisfactory” when the contrast is below one of a predefined and a predefinable threshold value.
Crankshaft testing device for the classification testing of at least one bearing surface of a crankshaft,
- a) having a sensor system having at least one sensor for detecting a reflection of a reference line pattern at the bearing surface to be tested (a reflection image), the reference line pattern having a plurality of lines which are spaced apart from one another, and the reference line pattern is imaged over the at least one bearing surface, the reference line pattern being imaged over the at least one bearing surface of the crankshaft to be examined in such a way that the lines extend, at least approximately, in the circumferential direction of the bearing surface, and
- b) having an evaluation device for evaluating the detected reflection image with regard to its contrast, the evaluation device classifying the crankshaft as “unsatisfactory” when the contrast is below one of a predefined and a predefinable threshold value.
Dependencies are inferred from the claim text.