To reduce work in progress in the plastic industry, integrated CNC punching and cutting machines have been used recently to combine a number of individual operations into one operation. Application of such integrated machines is confronted with a challenging problem of synchronizing two-axis motions. In this paper, an adaptive coupling controller is utilized to synchronize punching and cutting operations of the integrated CNC machine. The controller incorporates cross-coupling technology into adaptive control design, through feedback of position errors of two motion axes and the differential position error between two axes. It has been shown that the proposed controller guarantees asymptotic convergence to zero of both position errors and the synchronization error. Implementation of this new controller in real-time operations of commercial integrated CNC machines, highlights advantages of the proposed approach.
Adaptive Coupling Control of Two Working Operations in CNC Integrated Machines*
Contributed by the Dynamic Systems, Measurement, and Control Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the ASME Dynamic Systems and Control Division Sept. 7, 2002; final revision, May 2, 2003. Associate Editor: Tu.
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Sun , D. (January 29, 2004). "Adaptive Coupling Control of Two Working Operations in CNC Integrated Machines." ASME. J. Dyn. Sys., Meas., Control. December 2003; 125(4): 662–665. https://doi.org/10.1115/1.1636779
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