Data processing: generic control systems or specific application – Specific application – apparatus or process – Product assembly or manufacturing
Reexamination Certificate
2006-01-10
2006-01-10
Picard, Leo (Department: 2125)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Product assembly or manufacturing
C700S193000
Reexamination Certificate
active
06985792
ABSTRACT:
A method for automatically correcting the systematic errors in measurement machines and in manufacturing machines, in particular in machine tools, characterized by comprising the following operative steps in succession: identifying the parametric mathematical model of the machine, initially assigning, to the parameters of said parametric mathematical model, numerical values considered to be close to the effective values, to obtain a provisional mathematical model of the machine, effecting a plurality of mutually independent distance measurements within the working field of the machine, determining the differences between the experimentally measured distance values and the corresponding distance values deduced from said provisional mathematical model, to define the corresponding provisional inaccuracy index of the machine, varying said parameters in the sense of improving the predefined provisional inaccuracy index, to hence obtain a new provisional mathematical model of the machine which is closer to its definitive mathematical model, proceeding iteratively with new determinations of the difference between these and the corresponding values deduced from the mathematical model until said parameter variations do not produce any further significant improvement in said inaccuracy index, to hence obtain the definitive mathematical model of the machine, obtaining from said mathematical model the position and possibly orientation errors of the final machine member, and utilizing the error data to execute the correction.
REFERENCES:
patent: 4352778 (1982-10-01), Arnaud et al.
patent: 4535631 (1985-08-01), Sinha et al.
patent: WO 97/43703 (1997-11-01), None
patent: WO 01/07975 (2002-02-01), None
J.A. Soons, F.C. Theuws, P.H. Schellekns, “Modeling the errors of multi-axis machines: a general methodolgy,” 1992, Precision Engineering, pp. 5-19.
J. Mou, “A Method of Using Neural Networks and Inverse Kinematics for Machine Tools Error Estimation and Correction,” May 1997, vol. 119, Journal of Manufacturing Science and Engineering, pp. 247-254.
FPT Industrie S.p.A.
Hoffman Wasson & Gitler
Jarrett Ryan A.
Picard Leo
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