Round steel surface defect online detection system and detection method

Abstract

The invention discloses a round steel surface defect online detection system and detection method. The invention belongs to the technical field of metal surface detection. Two fixed box bodies are arranged in the online detection system and are symmetrically erected on the two sides of a round steel roller way; the lower parts of the two fixed box bodies are encircled to form a detection channel through which the round steel passes; a fixed bracket is mounted in each fixed box body; a plurality of industrial camera assemblies are arranged on the two fixed brackets at equal intervals; the camera shooting ranges of every two adjacent industrial camera assemblies are partially overlapped or connected; and arc-shaped light source assemblies are symmetrically installed on the two sides of the detection channel in the circumferential direction. The system provided by the invention has the beneficial effects that images of the surface of the round steel can be comprehensively and clearly acquired on line in real time; image acquisition jitter is avoided; a problem of image signal-to-noise ratio reduction is effectively avoided; round steel surface defects can be accurately identified anddetermined; a problem of influence on normal acquisition work caused by over-high round steel temperature is prevented; and automatic online detection of the round steel surface defects is realized.

Description

technical field [0001] The invention relates to the technical field of metal surface detection, in particular to an online detection system and detection method for round steel surface defects. Background technique [0002] With the continuous improvement of customers' requirements for the accuracy of round steel, the requirements for the inspection standard of round steel surface quality have also been continuously improved. The surface detection methods of round steel include optical imaging detection method, magnetic flux leakage detection method, infrared detection method, and ultrasonic flaw detection technology, etc. Among them, the most efficient mainstream is optical imaging detection. Its principle is to shine light on the surface of round steel In the above, a high-speed CCD camera is used to obtain the surface image of the round steel to detect the defect information on the surface of the round steel. [0003] In the production process, round steel often has defe...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides an online detection system for round steel surface defects, which can collect comprehensive and clear images of the round steel surface in real time online, and then accurately identify and judge the defects on the round steel surface, avoiding the image In the case of jittering, it effectively avoids the problem of image signal-to-noise ratio reduction caused by dust and oil pollution, and prevents the problem that the round steel temperature is too high and affects the normal collection work, reduces the labor workload of quality inspection workers, and realizes round Automatic On-line Detection of Steel Surface Defects

Images