Method and device for detecting defects of tempered glass insulators

A technology for tempered glass and defect detection, which is applied in the direction of optical testing for defects/defects, and can solve problems such as inability to perform quality inspection and control of tempered glass insulators, and difficulty in separation

Inactive Publication Date: 2016-04-13
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, tempered glass insulators are complex disk-shaped glass pieces with multi-layer grooves. The pictures captured by the camera contain a large amount of ring-shaped background light band stripe information. Traditional edge detection or adaptive threshold segmentation methods often It is difficult to effectively separate the existing defects from the background, so that the quality inspection and control of tempered glass insulators cannot be carried out

Method used

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  • Method and device for detecting defects of tempered glass insulators
  • Method and device for detecting defects of tempered glass insulators
  • Method and device for detecting defects of tempered glass insulators

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Embodiment Construction

[0052] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0053] The defect detection device for tempered glass insulators based on concentric arc scanning involved in this embodiment is composed of an optical imaging system, an image acquisition system, and a rotation control system.

[0054] like figure 1 Shown: the above device includes: frosted plexiglass tray 2 , LED white light source 3 , stepping motor 4 , CCD camera 5 , rotating console 6 , programmable PLC7 , and computer 8 . Among them, the frosted plexiglass tray 2 and the stepper motor 4 are connected by a coupling, and the rotation of the stepper motor 4 drives the frosted plexiglass tray 2 to rotate, and the insulator to be detected is placed on the frosted plexiglass tray 2 and rotates together; LED white The light source is placed under the frosted plexiglass tray 2, and a plane light source can be arranged at the bottom of the ins...

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Abstract

The invention discloses a method and a device for detecting defects of a toughened glass insulator. The method for detecting the defects of the toughened glass insulator breaks through the traditional way in which progressive scanning is carried out during image processing, aims at the imaging characteristics of the toughened glass insulator, and adopts a concentric circle scanning method, so that a great deal of unrelated background is inhibited, only an image of parts with the detects is left, and the later image segmentation is facilitated; and the method is accurate and effective in defect detection.

Description

technical field [0001] The invention relates to a defect detection device and a detection method suitable for tempered glass insulators, in particular to a detection method and device for bubble defects. technical background [0002] Insulators are an important part of overhead transmission lines and are the most widely used devices in power systems. They have relatively simple structures and relatively low manufacturing costs, but they are no less important than other equipment. In the manufacturing process of tempered glass insulators, due to many factors, such as formula, raw material preparation, condition of equipment and tools, heat treatment of glass parts, etc., glass parts sometimes have defects such as bubbles, cracks, stones, roughness, breakage, deformation, etc. These defects must be strictly controlled, detected and screened to ensure the quality of finished tempered glass insulators and improve the reliability of glass insulators in power system operation. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/88
Inventor 吴洪潭叶含笑
Owner CHINA JILIANG UNIV
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