High-precision mechanical production and MATLAB integration
Our partner company Hille Engineering GmbH was entrusted with the mechanical question and developed a solution that enables a uniform rotation of the balanced rotating plate and thus the core ring. Quality Automation GmbH took over the electrical design, electrical installation and software development of the system. A Beckhoff drive consisting of a servo motor and gear was used to drive the turntable. The control was implemented on a Beckhoff IPC with Beckhoff TwinCAT 3. A MicroEpsilon laser micrometer for measuring the height and two laser displacement sensors for recording the inner and outer radius were used to scan the core ring with an accuracy of 10 μm. The recorded data points are linked to the position data in the controller and saved as a CSV file. A MATLAB script was developed in parallel to the actual system control, which is started in the process by the control. The script reads in the exported data and takes over the complex calculations of the minimum, medium and maximum radius, the optical diameter, the circumference, the roundness and deformation. The results are stored in various files and read in by the Beckhoff control. The results are clearly displayed to the operator as values and as graphics on the panel surface.
Measuring system with connection to quality management software
The developed measuring system forwards the data and results via OPC UA to the higher-level quality management software QDA. By making slight changes to the design and software, the system can also be used to measure concentricity or runout, for example of shafts, spindles and many other components from the automotive, mechanical engineering or medical technology sectors.