Summary
An example of the use of transient acceleration feedback is described. The use of two load masses allows the effectiveness of the technique to be studied at a low (38 Hz) and a high (88 Hz) drive natural frequency. The control system response is evaluated, for input signals, by step and frequency response tests; the output stiffness is assessed by single-tooth milling loads and impact loads. A considerable enhancement of static and dynamic accuracy is demonstrated.
This is a preview of subscription content, log in via an institution.
Preview
Unable to display preview. Download preview PDF.
References
ANON., ‘National Aerospace Standards 912, 913, 948, 960, 977, 978 and 979’, Aerospace Industries Association of America, Washington D.C., U.S.A.
ANON., ‘Definition and Evaluation of Accuracy and Repeatability for Numerically Controlled Machine Tools’, National Machine Tool Builders Association, Washtington D.C., U.S.A., 1968.
BELL, R., ‘The Performance of Electrohydraulic Cylinder Drives for Numerically Controlled Machine Tools’, Ph.D. Thesis, UMIST, 1970.
DE PENNINGTON, A., ‘The Dynamics of Electrohydraulic Cylinder Drives’, Ph.D. Thesis, UMIST, 1971.
BELL, R., The Use of Cylinder Drives on N.C. Machine Tools—A Re-Evaluation’, to be published in J.M.T.D.R., 1971.
BELL, R., and DE PENNINGTON, A., ‘The Design of Active Damping for Electrohydraulic Cylinder Feed Drives’, Proc. 9th M.T.D.R. Conf., Birmingham, 1968, 1309.
BELL, R., and DE PENNINGTON, A., ‘Active Compensation of Lightly Damped Electrohydraulic Cylinder Drives Using Derivative Signals’, Proc. Inst. Mech. Engrs. 1969–70, 184, 83.
BELL, R., and BURDEKIN, M., ‘The Frictional Damping of Plain Slideways for Small Fluctuations of the Velocity of Sliding’, Proc. 8th M.T.D.R. Conf., Manchester, 1967.
POLACEK, M., and VAVRA, V., ‘The Influence of Different Types of Guideways on the Static and Dynamic Behaviour of Feed Drives’, Proc. 8th M.T.D.R. Conf., Manchester, 1967, 1127.
GALE, P. and BELL, R., ‘An Economic Technique for the Improvement of the Stability of Hydraulic Cylinder Drives’. Paper to be given at the 12th M.T.D.R. Conf., Manchester, 1971.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Copyright information
© 1972 Macmillan Publishers Limited
About this chapter
Cite this chapter
DE Pennington, A., Marsland, D.W., Bell, R. (1972). The Improvement of the Accuracy of Electrohydraulic Cylinder Drives for NC Machine Tools by the Use of Active Feedback Compensation. In: Koenigsberger, F., Tobias, S.A. (eds) Proceedings of the Twelfth International Machine Tool Design and Research Conference. Palgrave, London. https://doi.org/10.1007/978-1-349-01397-5_26
Download citation
DOI: https://doi.org/10.1007/978-1-349-01397-5_26
Publisher Name: Palgrave, London
Print ISBN: 978-1-349-01399-9
Online ISBN: 978-1-349-01397-5
eBook Packages: EngineeringEngineering (R0)