Machine vision detection method and system for bevel gear abrasion
A machine vision detection and bevel gear technology, applied in instruments, computer parts, image enhancement, etc., can solve the problems of low work efficiency and poor universality of bevel gear wear measurement.
Active Publication Date: 2021-04-30
BEIHANG UNIV
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[0004] The purpose of the present invention is to provide a machine vision detection method and system for bevel gear wear, to solve the problem of low work efficiency of bevel gear wear evaluation and poor versatility for wear measurement of different types of bevel gears
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[0068] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0069] The purpose of the present invention is to provide a machine vision detection method and system for bevel gear wear, which can improve the work efficiency of bevel gear wear evaluation, and at the same time ensure the versatility of the measurement of different types of bevel gears.
[0070] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail b...
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The invention relates to a machine vision detection method and system for bevel gear abrasion. The method comprises the following steps: scanning a bevel gear to be detected by using photographic measurement equipment, and determining a three-dimensional point cloud model of the bevel gear; preprocessing the bevel gear wear defect point cloud data in the bevel gear three-dimensional point cloud model, and determining the preprocessed bevel gear wear defect point cloud; establishing a standard coordinate system according to the bevel gear three-dimensional point cloud model; based on the standard coordinate system, bevel gear contour information is extracted; and determining bevel gear wear parameters according to the bevel gear wear defect point cloud, the fitted conical contour shape of the outer contour of the bevel gear and the fitted conical contour shape of the inner contour of the bevel gear. According to the invention, the working efficiency of bevel gear wear evaluation can be improved, and the universality of measurement suitable for bevel gears of different models is ensured.
Description
technical field [0001] The invention relates to the field of bevel gear wear detection, in particular to a machine vision detection method and system for bevel gear wear. Background technique [0002] With the development of digital technology, traditional quality inspection methods have defects in detection efficiency and accuracy. In order to overcome various problems in manual measurement methods, enterprises gradually adopt photogrammetric methods for related research and application. However, the application of photogrammetry in the wear detection of bevel gears is still seldom, and how to calculate the wear of bevel gears through the algorithm of photogrammetry still has some research and application difficulties. [0003] Since there are various types of bevel gears, there are many types of wear information obtained by using ordinary measurement methods, with large differences and a large workload; it is feasible to use a fixed algorithm to measure bevel gears of a s...
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Login to View More IPC IPC(8): G06T5/00G06T7/00G06T7/11G06T7/62G06T7/70G06T7/90G06K9/62
CPCG06T7/0004G06T7/11G06T7/62G06T7/90G06T7/70G06T2207/10028G06F18/23G06T5/70
Inventor 段桂江孟新元刘睿
Owner BEIHANG UNIV