Diagnostics for geometric performance of machine tool linear axes

• DOI: 10.1016/j.cirp.2016.04.117
• Publication Date: 2016-06-06T10:03:28Z
• Authors: Gregory W. Vogl; M. Alkan Donmez; Andreas Archenti
• Keywords: Testbed; Machine tool; Units of measurement; Identification; Degradation

Machine tools degrade during operations, yet knowledge of degradation is elusive; accurately detecting degradation of linear axes is typically a manual and time-consuming process. Manufacturers need automated and efficient methods to diagnose the condition of their machine tool linear axes with minimal disruptions to production. A method was developed to use data from an inertial measurement unit (IMU) for identification of changes in the translational and angular errors due to axis degradation. A linear axis testbed, established for the purpose of verification and validation, revealed that the IMU-based method was capable of measuring geometric errors with acceptable test uncertainty ratios.