What is SMT automatic optical inspection machine

 What is SMT automatic optical inspection machine

 

The SMT automatic optical inspection machine (AOI) is an inspection device based on optical principles, mainly used for automatic inspection of surface defects of PCBA (printed circuit board assembly) during the SMT (surface mount technology) production process. The following is a detailed introduction to the SMT automatic optical inspection machine:

 

  1. Definition and principle of SMT automatic optical inspection machine

SMT automatic optical inspection machine, referred to as AOI, uses high-resolution cameras and advanced image processing algorithms to perform a full range of visual inspections on the surface of PCBAs. The camera automatically scans the PCB, collects images, and compares the tested solder joints with the qualified parameters in the database. After image processing, various defects on the PCBA can be quickly and accurately detected.

 

  1. Main functions of SMT automatic optical inspection machine

Appearance defect detection: AOI can detect appearance defects such as component offset, tombstone, reflection, multiple pieces, missing parts, etc. on PCBA to ensure product quality during the production process.

 

Detect welding quality: Use high-resolution cameras to capture the welding conditions of SMT components, use advanced image processing technology to automatically detect welding quality, and identify welding defects such as cold solder joints, cold solder joints, and bridging.

 

Improve production efficiency: Compared with traditional manual visual inspection methods, AOI equipment has higher detection speed and accuracy, and can detect a large number of SMT components in a short time, effectively improving production efficiency. At the same time, AOI equipment can work 24 hours a day, further improving the overall production capacity of the production line.

 

Reduce production costs: AOI equipment has a high degree of automation, which reduces reliance on manual inspection and reduces labor costs. In addition, since AOI equipment can detect and handle welding defects in a timely manner, it avoids unqualified products from flowing into subsequent processes, reduces rework and scrap rates, and further saves production costs.

 

  1. Application focus of SMT automatic optical inspection machine

Used to detect common errors such as component misalignment, reversal, missing, and redundant, as well as defects after welding such as cold welding and bridging.

Suitable for various types of PCB boards, including fine-pitch high-density boards to low-density large-size boards.

Provide online detection solutions to improve production efficiency and welding quality.

 

  1. Advantages of SMT Automatic Optical Inspection Machine

The detection speed is fast and the accuracy is high, which can detect some defects that are difficult to detect with the naked eye.

The detection results are more objective and accurate, reducing the misjudgment caused by human factors.

It can realize data sharing and collaborative operation with other equipment on the SMT production line, which helps to optimize the production process.

 

  1. Summary of SMT Automatic Optical Inspection Machine

SMT automatic optical inspection machine (AOI) is an efficient and accurate inspection equipment, which plays an important role in the SMT production process. By automatically detecting the surface defects and welding quality of PCBA, AOI equipment not only improves production efficiency and product quality, but also reduces production costs. With the continuous development of science and technology, AOI equipment will continue to play a more important role in the field of SMT processing.

 

We specialize in providing the following SMT equipment production solutions for electronic manufacturers:

Printers, SPI, SMT machines​, AOI, reflow soldering, X-Ray and other complete SMT production line equipment;SMT peripheral equipment such as loading and unloading machines, docking stations, coating machines, dispensing machines, and material receiving machines;Feeders, nozzles, boards, valves, belts, spare parts, consumables and other services and solutions.

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