SMT AOI Manufacturing Factory

What is SMT PCB AOI

AOI (Automated Optical Inspection) in SMT is a technology used to check the surface assembly quality of PCB (Printed Circuit Board). It uses high-resolution camera systems and image processing software to detect defects and errors in the surface assembly process.

How many types of SMT AOI are there?

SMT AOI equipment is mainly divided into two types: online and offline.

Online AOI equipment can be placed on the assembly line and used simultaneously with other SMT equipment to achieve 100% full inspection, with a high degree of automation and suitable for large-scale production. Offline AOI equipment is usually placed in other locations to inspect PCB boards on the SMT assembly line. The inspection method is random inspection or batch inspection. The degree of automation is medium and manual assistance is required to complete the inspection.

Main functions of SMT AOI

1. Inspection items:The AOI system can detect various defects in the PCB surface assembly process, such as component loss, offset, reverse installation, poor soldering, short circuit, open circuit, etc.

2. Improve inspection efficiency: Compared with manual inspection, AOI inspection can complete the inspection of PCB surface assembly quality more quickly, greatly improve the inspection efficiency, and also realize 24-hour all-weather inspection.

3. Reduce human errors: The AOI system can automatically perform inspections, reducing the impact of human factors on the inspection results, thereby improving the accuracy and reliability of inspections and reducing human errors.

4. Improve product quality: By timely discovering and correcting defects in the surface assembly process, AOI inspection can effectively improve product quality, reduce the defective rate, and ensure the reliability and stability of products.

5. Data analysis and traceability: The AOI system can generate detailed inspection reports and image records, perform data analysis and statistics on the inspection results, help manufacturers analyze problems in the production process, and make quality improvements and traceability.

How to maintain AOI Machine for PCB?

The maintenance of AOI equipment mainly includes daily maintenance, regular maintenance and troubleshooting.

Daily maintenance

Daily maintenance is the basis for ensuring the normal operation of the equipment. The operator needs to perform daily inspections, including checking the working air pressure, computer power connector, fan operation, and removing non-related foreign objects in the machine. These inspections should use visual and manual pressure methods to ensure that all moving devices are free of foreign objects, the barometer numbers are within the normal range, the power cord is well connected, the fan is running normally, and the ground wire is firm12.

Regular maintenance

Regular maintenance includes weekly, monthly and 3/6/12 month inspection and maintenance items. Engineering personnel need to complete these items to ensure the stable operation of the equipment and extend its service life. Specifically, it includes cleaning the inside of the chassis, checking the stability of the power supply and baseboard, and preventing dust accumulation.34.

Fault handling

During the operation of the equipment, if an emergency or abnormality is encountered, measures should be taken quickly. For example, if an emergency occurs during the inspection process, the power supply of the equipment should be turned off quickly to avoid injury to the fingers; if the equipment cannot be started normally, the power connector and fan should be checked for normality.

Through the above maintenance measures, the stable operation of AOI equipment can be effectively guaranteed, production efficiency can be improved, and the service life of the equipment can be extended.

What are the precautions for SMT AOI Machine?

The main precautions for SMT AOI include the following aspects:

1. Set appropriate detection parameters: According to the actual situation of the production line and the characteristics of the components, set appropriate detection parameters such as image resolution, contrast, brightness, etc. The settings of these parameters directly affect the accuracy and reliability of detection.

2. Regularly maintain and calibrate equipment: Regularly maintain and calibrate AOI equipment to ensure the normal operation and detection accuracy of the equipment. The stable operation of the equipment is the basis for ensuring the accuracy of the detection results.

3. Pay attention to environmental conditions: Keep the environmental conditions of the production site stable to avoid the influence of factors such as light and temperature on the detection results. The impact of environmental factors on optical detection cannot be ignored1.

4. Timely handle abnormal data: For abnormal data detected by the AOI system, it is necessary to process and analyze them in time, find out the reasons and take corresponding measures to improve them. This helps to find and solve problems in time.

What are the consequences of improper maintenance of SMT AOI Machines?

Improper maintenance of SMT AOI may lead to a variety of consequences, including misjudgment, missed judgment, equipment failure and safety issues.

First of all, improper maintenance of SMT AOI may lead to misjudgment and missed judgment. Because the equipment may have ambiguity in its understanding of virtual solder joints, or some solder joints cannot be detected during the detection process, this may lead to misjudgment and missed judgment, thereby affecting product quality. In addition, differences in the capacitance and character processing methods of different components may also lead to reduced detection accuracy, further increasing the risk of misjudgment and missed judgment.

Secondly, improper maintenance of SMT AOI may also lead to equipment failure. The normal operation of the equipment is inseparable from regular maintenance. If it is not properly maintained, it may cause equipment failure, affecting production efficiency and product quality. For example, the mechanical parts of the equipment may wear out due to lack of maintenance, resulting in reduced detection accuracy; the electronic components of the equipment may also have problems due to dust or corrosion, affecting its normal operation.

Finally, improper maintenance of SMT AOI may also cause safety issues. During the equipment maintenance process, operators may face risks such as mechanical injury, chemical hazards, noise pollution and electromagnetic radiation. If improperly maintained, these risks may increase, posing a threat to the safety and health of operators.

Why choose us to buy SMT AOI Machine?

1. The company has hundreds of SMT AOI in stock all year round, and both the equipment quality and the timeliness of delivery are guaranteed.

2. We have an expert technical team that can provide one-stop technical services such as SMT AOI relocation, repair, maintenance, CPK precision testing, board repair, motor repair, technical training, etc.

3. Not only do we have new and original accessories in stock, we also have domestic accessories, such as track belts, camera light sources, etc. We have our own factory to produce, which to a large extent helps customers reduce operating costs and increase profit margins.

4. Our technical team operates 24 hours a day and night shifts. For all technical problems encountered by SMT factories, engineers can be arranged to answer remotely at any time. For complex technical problems, senior engineers can also be sent to provide technical services on site.

In summary, AOI is undoubtedly the most important equipment for SMT. When choosing similar suppliers, in addition to inventory and price advantages, special attention should be paid to whether the supplier has a professional technical team, which plays a vital role in the normal production of the equipment in the future.