Diagnostic systems for end-of-line quality assessment of electric motors

In recent years, companies have been upgrading production lines with the ability to flexibly produce different electric motors and quickly switch between them. The end-of-line quality control diagnostic system must follow this trend and allow for such flexibility, both in terms of the test itself, as well as the classification of results and evaluation with specific limit values. The main function of the developed diagnostic system is to perform a 100% end-of-line quality control for several different types of electric motors. The system must detect and identify, with high reliability, the potential defects of the manufactured product, as well as any deviations from the nominal characteristics resulting from either its electronic, electrical, or mechanical components. In doing so, it should facilitate the change of the product type and shorten the time required for the change. In developing such a flexible diagnostic system, innovations are embedded in several areas. First of all, in the semi-automatic or automatic gripping of products. Furthermore, in the procedure of achieving working conditions and finally, evaluating the measured results, both based on the parameters obtained from the database or the MES system. At the same time, solutions are sought to reduce the duration of the process and increase the reproducibility of the results. The current application scope of developed diagnostic system is the production of electric motors for vacuum cleaners and household appliances.