PCB is more and more widely used. Its unique advantages include: high density, high reliability, designability, producibility, testability, assembly and maintainability, which determines that the requirements for its product qualification rate are very high. Human eye detection cannot be satisfied. The visual defect detection equipment provided by Shandong Hongbao automation can customize the visual defect detection scheme for the problems in the PCB production process.
So, what problems are prone to occur in the process of making PCB?
1. Patch components are prone to defects such as holes, spalling and stains in the production process. Due to the small defects, the traditional algorithm needs to spend a lot of time on customized development of defects, and it is easy to separate small defects in gray threshold segmentation, so it is difficult to meet the requirements of zero defect detection in high-speed production line;
2. There are many solder joints and small parts on the PCB board. When character recognition collects images, the background is complex and there are many interference factors, resulting in inaccurate character positioning and recognition. In addition, the reflection of the parts themselves will lead to incomplete recognition information, false recognition and slow recognition speed, which can not meet the needs of PCB board character recognition in the actual production and detection process;
3. In the process of PCB welding components, it is necessary to detect whether the position of each component is correct and whether the components are missing. Traditional algorithms can not locate and identify a variety of electronic components, and customized development takes a lot of time. It is easy to be affected by external factors, resulting in wrong positioning or missing components, which directly affects the performance and life cycle of PCB.
The visual defect detection scheme developed by Shandong Hongbao automation has the following advantages:
1、降低成本 Reduce costs
Visual defect detection is a substitute for human eye detection, which can detect the size and appearance defects of products at the same time, reduce the labor cost of stations and sections, and improve the production efficiency
2、减少工件损伤Reduce workpiece damage
It can be tested in all directions without connecting the workpiece to reduce the damage of the workpiece
3、杜绝误差 Eliminate errors
Real time production quality data monitoring, compared with manual detection, has less error, eliminates defective products and reduces costly rework
4、准确性高 High accuracy
The quantitative description of data indicators can avoid manual subjective judgment errors, the detection speed is fast, and the productivity and classification accuracy are improved
The products detected by visual defects ensure quality stability, improve production, optimize quality and improve product competitiveness
Applicable to various working conditions and environments
Visual defect detection can be used in dangerous environments that cannot be adapted or connected manually
Comprehensively improve the intelligent level of the factory
All measurement data generated in the detection process can be counted and analyzed, and the specified measurement data can be exported to generate reports
The progress of science and technology will provide a broader development space for enterprises. In the future, automatic visual defect detection technology and equipment will become a necessary method for many enterprises to improve product qualification rate. Based on the perspective of development, the early introduction of automatic visual defect detection technology and equipment can help the rapid development of the enterprise as soon as possible.