A dual-station-based online automatic detection device and method for car mirror defects

Abstract

The invention relates to a car mirror flaw online automatic detection device and method based on double stations. The device mainly comprises an air knife drying system and an image detection system. The air knife drying system and an air purifying chamber are sequentially installed at the rear end of a cleaning device of a mirror surface production line, and the whole image detection system is installed in the air purifying chamber. The detection stations are arranged in the sealed air purifying chamber, and a detection device of the first detection station is composed of a line scanning CCD, a lens, a linear light source and a photoelectric encoder to detect flaws, such as scratches (internal and external scratches) and pits, of the mirror surface. The second detection station is composed of an area array CCD, a lens and a backlight source. By means of the backlight illumination mode, car mirror images are obtained to detect the flaws of mirror surface light leakage, edge cracking and the like. The obtained images are processed through a computer to achieve intelligent car mirror flaw detection. The car mirror flaw online automatic detection device can replace workers, car mirror production quality can be quickly and automatically detected, and production efficiency and quality of car mirrors are improved.

Description

technical field [0001] The invention relates to a dual-station-based on-line automatic detection device and method for car mirror defects, belonging to the technical field of auto parts processing and manufacturing engineering. Background technique [0002] my country has developed into a major producer of automotive rearview mirrors in the world. The quality of the car rearview mirror is directly related to the driver's accurate judgment of the surrounding conditions of the vehicle, and at the same time is related to the safety of the passengers. Therefore, all countries have attached great importance to this type of product and carried out strict quality control, including strict inspection of the shape, contour and surface defects of the car mirror. Due to the large production volume of car mirrors and high production technology requirements, the quality inspection of car mirrors has become a key problem that car mirror manufacturers and car manufacturers need to solve u...

AI Technical Summary

Problems solved by technology

[0003] Due to the heavy workload of the quality inspection of car mirror defects, not only the inspectors need to have rich work experience, but also need to have good vision requirements. For workers who work continuously on the assembly line, it is easy to produce visual fatigue, which leads to the detection efficiency and detection. The accuracy rate drops, and the phenomenon of false detection and missed detection is inevitable

On the other hand, with the regional adjustment of the world economy and the industrial transformation of China's economy, labor costs are getting higher and higher, and the method of manual inspection of car mirror products cannot meet the current high-speed, precise, and automated production requirements.

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