This paper proposes a novel method for identifying carriage errors. A general mathematical model of a guideway system is developed, based on the multi-body system method. Based on the proposed model, most error sources in the guideway system can be measured. The flatness of a workpiece measured by the PGI1240 profilometer is represented by a wavelet. Cross-correlation analysis performed to identify the error source of the carriage. The error model is developed based on experimental results on the low frequency components of the signals. With the use of wavelets, the identification precision of test signals is very high.
Hwang, J.; Parka, C.H.; Gao, W.; Kim, S.-W. A three-probe system for measuring the parallelism and straightness of a pair of rails for ultra-precision guideways. Int. J. Mach. Tools Manuf. 2006, 47, 1053–1058.
Weule, H.; Albers, A.; Haberkem, A.; Neithardt, W.; Emmrich, D. Computer Aided Optimisation of the Static and Dynamic Properties of Parallel Kinematics. Proceedings of the 3rd Chemnitz Parallel Kinematic Seminar, Chemnitz, Germany, 23–25 April 2002; pp. 527–546.
Brecher, C.; Denkena, B.; Giesler, M.; Golzer, P.; Hamann, J.; Kelichhaus, T.; Prier, M.; Prust, D.; Reinhart, G.; Quein, M.; et al. Effiziente Entwicklung von Werkzeugmaschinen-Mit Virtu-ellen Prototypen direct Zum Marktfahigen Produkt. In Tagungsband Aachener Werkzeugmaschinen Kolloquium; Shaker-Verlag: Aachen, Germany, 2002; pp. 157–190.