Development of a measuring program for single parts of an electronic stability control using a coordinate measuring machine

Abstract

The project was carried out in the Quality Control Department of Continental AG located in Frankfurt am Main, Germany. Continental developed a braking system called MK 100®, which makes it possible to install ABS/ESC in all vehicle categories. In the manufacturing process, there are many factors that can affect the dimensions of the geometric features of the product, so it is necessary to establish a method for identifying that these features lay within the defined tolerance values. The main goal of the project is to develop a measuring program for the valve block of the electronic stability control module. The measuring program is developed using a coordinate measuring machine that measures all the specified geometric features defined in the technical drawing of the workpiece. At the end, the software generates a report that shows all the measured and calculated geometric features and they are compared with the nominal values. Each of the features has a range of accepted values and the report indicates if the values are in the tolerance zone or out of it. This document describes all the important concepts regarding coordinate metrology that is necessary for developing the measurement protocol and understanding the results of the measurement report. It also contains a description of all the important steps when developing a measurement strategy and the way the coordinate measuring machine Leitz PMM 866 is programmed using the Quindos 7 software.