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Rod-shaped object surface defect detection system and method based on machine vision

A technology for object surface and defect detection, applied in the direction of optical testing defects/defects, instruments, measuring devices, etc., can solve problems such as poor reliability and low efficiency, and achieve the effect of avoiding deformation

Inactive Publication Date: 2019-06-11
陕西三星洁净工程有限公司 +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a machine vision-based detection system and method for rod-shaped object surface defects, to solve the problems of low efficiency and poor reliability in detecting rod-shaped object surface defects existing in artificial vision detection methods, and to achieve high-precision online detection

Method used

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  • Rod-shaped object surface defect detection system and method based on machine vision
  • Rod-shaped object surface defect detection system and method based on machine vision
  • Rod-shaped object surface defect detection system and method based on machine vision

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Embodiment approach

[0051] see figure 1As shown, the present invention provides a machine vision-based surface defect detection system for rod-shaped objects, including a 3D sensor 3 , a sensor bracket 4 , an encoder 7 , a main controller 9 and a graphics workstation 11 .

[0052] The rod-shaped object 2 is fixed by the tractor 1 and passes through the center of the sensor bracket 4. A plurality of 3D sensors 3 are fixed on the slider of the circular track of the sensor bracket 4 through a manual translation platform at a certain angle at intervals. The 3D sensors 3 pass through the main control line. 5 is connected to the main controller 9, the main controller 9 is connected to the power supply and the encoder 7 through the cable 8, the encoder 7 is fixed on the rotating shaft of the tractor 6, and the communication between the main controller 9 and the graphic workstation 11 is carried out through Ethernet .

[0053] The 3D sensor 3 includes a laser emitter, a CCD camera, an I / O connector and...

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Abstract

The invention discloses a rod-shaped object surface defect detection system and method based on machine vision. The rod-shaped object surface defect detection system comprises a traction device, a vision acquisition device, a synchronizer and a central control system, wherein the traction device is used for driving a rod-shaped object to move; the vision acquisition device is used for acquiring depth information of a surface of the rod-shaped object; the synchronizer is used for synchronizing the traction device and the vision acquisition device; and the central control system is used for processing and displaying the depth information of the surface of the rod-shaped object, which is acquired by the vision acquisition device. The rod-shaped object surface defect detection system and method can avoid defects of manual detection by adopting a machine vision detection technology, have the advantages of high accuracy, high efficiency, stability, reliability, applicability to online detection and the like, and have very wide application prospect.

Description

technical field [0001] The invention belongs to the technical field of visual defect detection, in particular to a system and method for detecting surface defects of rod-shaped objects based on machine vision. Background technique [0002] Today, with the rapid development of science and technology, automated production has greatly improved the production efficiency of products. Defects such as pits or burrs on the surface of rod-shaped objects limit the application of rods, so defects become the detection index of rod-shaped objects. [0003] At present, the artificial visual inspection method is still the main method for surface defect detection of rod-shaped objects. Although artificial visual inspection is simple and direct, it has certain limitations: (1) The resolution of the human eye is limited, and it is difficult to reach the micron level (2) Human eye detection will be affected by subjectivity, and it is difficult to ensure sufficient stability and reliability; (3...

Claims

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Application Information

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IPC IPC(8): G01N21/89G01N21/892
Inventor 秦彬书张斌
Owner 陕西三星洁净工程有限公司
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