What is visual inspection?
It is a non-destructive method that allows us to identify materials according to their specification and chemical composition. It is about being able to detect those imperfections or defects that have been made during the production time.
In order to effectively carry out the visual inspection system, it is important to know how to perform the visual observation technically, and to know how to interpret those results that we can observe, so it is essential to know the materials, processes and utilities of the components used.
In order to carry out this visual inspection, we divide the ways of doing it into two groups, having on the one hand the direct way, in which it is carried out at a short distance, taking advantage of the visual capacity of the inspector, with the help of microscopes, lamps, flashlights and on the other hand, we have remote visual inspection, where artificial vision would come into practice, where it allows us to have access to those components in which direct access is prevented.
Recent innovations in artificialvision have focused their efforts on 3D vision in order to inspect and obtain data that we cannot obtain with only 2D vision. Among the most outstanding applications, it is worth mentioning qualitycontrol (detection of possible defects, excesses or deficiencies of material, defective welds, etc.), dimensional metrology (for the inspection of physical magnitudes in 3D) or guidancesystems of robots. Specifically, the latter allow the position of any object in space to be determined with extreme precision, being able to define each of the points in a 3D space and directing the robot to the precise point where it must access.
3D vision for defect inspection
Inspection systems with 3D vision allow automated surface inspections of parts to be carried out, reducing inspection times and thus increasing production. On the other hand, they also help improve the quality of conventional inspections and eliminate the possible subjectivity of inspectors. A good example is the inspection of welding processes in the automotive industry.
The different welding processes are of great importance in the field of the automotive sector. Automating the quality control of these processes is essential to ensure greater accuracy, speed and productivity.
Dimensional information, key to the Smart Factory
3D dimensional control techniques allow us to measure the physical magnitudes of products to control their quality and that of their own manufacturing processes. Dimensional information is not only integrated into the interconnected factory, but it is a key element in making this immediate and shared information truly efficient and allows for process improvement.
Smart measurement and positioning sensors
Pre-calibrated 3D intelligent systems are flexible and adaptable to a wide range of applications and projects without having to make major changes to their configuration. This is the case of the 3D intelligent sensors, which even allow the interconnection of different models to create a high-resolution multi-sensor inspection system.
Vision guided robotics
Vision – assisted robotic systems (VGR) stand out for offering greater flexibility, since they allow us to determine the position of any object in 3D space and direct the robot to the precise point where it must access. In addition to its use in object and part handling systems, VGR systems can be used in all kinds of applications, such as palletizing control with artificial vision.
