Stemmer Imaging has supplied Knorr-Bremse with a vision system for the inspection of commercial vehicle disc brakes.
Developed in collaboration with Neupro, it features line laser illumination, three cameras and intelligent imaging software. It inspects the brake assemblies and checks the correct mounting by comparing the results to stored data.
The disc brakes leave production mounted on a workpiece carrier and are checked in a dedicated inspection area. The entire measurement process including laser triangulation, pattern recognition, colour recognition and measurement of components is carried out within milliseconds.
Inspection is carried out using Sherlock image processing software from Teledyne DALSA and a Neupro-Sherlock plugin for Oracle transfers the data to the database. If a defect is detected the database can say if the part can be reworked.
The individual inspection algorithms are global and are recalled via the database using the part number of the particular brake assembly.