Utilizing Plc Data For Workpiece Flaw Detection In Machine Tools

Workpiece quality is one of the essential goals of every production company, due to the fact that it is strongly related to customer satisfaction and therefore to sales revenue and business success. While in single-part production every product can be checked for quality issues, this is inefficient in higher volume series production. Hence, random sampling is a widespread method for quality control in high-volume production. The problem with this method is that it just uses samples. Defect workpieces in between the samples are not recognized and therefore processed further on. In this chapter, an approach for monitoring systems for higher volume series production in machine tools is introduced to implement a 100% quality monitoring. It is utilizing the already implemented sensor network that is delivering its data to the machine PLC of the machine tool to indirectly measure the quality.