A quasi-online geometric errors compensation method on CNC machine tool

The design of the quasi-online geometric errors compensation method on CNC machine tool using the Ballbar device is described. Nowadays, control and compensation of CNC machine tools are essential phases of their operation. The control is usually manual; the operator and the measuring apparatus jointly perform the measurement and subsequent machine compensation. The present paper describes the procedure and the experiment designed to assess machine condition under various operating conditions. The principle of performed machine tests is based on circular interpolation in manual regime. Prior to experiments, relevant evaluations are made, and quasi-online compensation is devised. For circularity measurement, the DMU 125 P DuoBlock CNC machining centre was chosen