Machine vision detection system and method for grinding chatter mark on bearing ring
A technology for machine vision detection and bearing rings, which is applied in the field of bearing ring grinding, can solve the problems of inability to directly observe with the naked eye, low reliability, and low precision, and achieve high stability, high-precision detection, and simple implementation structure Effect
Inactive Publication Date: 2019-12-27
杭州深度视觉科技有限公司
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Problems solved by technology
For severe grinding chatter marks with a large depth and a large area, they can usually be directly observed by the naked eye under the irradiation of conventional visible light sources; but for relatively shallow grinding cracks, they cannot be directly observed by the naked eye under normal conditions, and need the help of High-resolution detection equipment for observation
There are problems of low efficiency, low precision and low reliability in manual detection of grinding vibration marks
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[0043] 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.
[0044] In this application, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes none. other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "com...
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The invention provides a machine vision detection system and method for a grinding chatter mark on a bearing ring. The system comprises a highly directional direct light source, an area-array camera and an upper computer; the highly directional direct light source is used for irradiating a to-be-detected bearing ring at a specific angle and under specific light intensity; the area-array camera isused for shooting the to-be-detected bearing ring and sending a surface image of the to-be-detected bearing ring to the upper computer; and the upper computer is used for detecting a grinding chattermark on the to-be-detected bearing ring by analyzing a brightness change curve of the surface image. The machine vision detection system and method provided by the invention have the advantages of simple implementation structure, high detection accuracy, high efficiency and high stability. The machine vision detection system and method are also applicable to detection on the grinding chatter markson the surfaces of a bearing roller and a bearing finished product.
Description
technical field [0001] The invention relates to the technical field of bearing ring grinding, in particular to a machine vision inspection system and method for grinding vibration lines of a bearing ring. Background technique [0002] During the grinding process, the bearing ring is affected by the vibration caused by factors such as insufficient rigidity of the machine bed, large electric spindle runout, weak cutting ability of the grinding wheel, out-of-round wear of the grinding wheel, and poor lubrication effect of the coolant. Vibration damage occurs. Grinding vibration marks of bearing rings will cause the bearings to produce noise, beating and even burns during actual operation, which will affect the service life and is a very serious quality problem. Therefore, the detection of grinding chatter marks of bearing rings is a very important requirement. [0003] At present, the appearance detection of grinding cracks in bearing rings is mainly manual detection. For se...
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Login to View More IPC IPC(8): G01N21/956G01N21/01
CPCG01N21/956G01N21/01
Inventor 廖金鑫
Owner 杭州深度视觉科技有限公司