リンク機構を有するサーボ系の軌道計画とACサーボプレスの振動低減(<小特集>運動と振動の制御の21世紀への新展開)

概要

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This paper describes a method of trajectory planning, parameters adjustment on servo systems and application to vibration reduction on novel press machines using AC servo motors. Recently, the servo presses are spreading over a market because they have advantages of stabilization of processing accuracy, improvement in fabricability of processing materials and large reduction of operation noise. The servo systems with the linkage mechanism sometimes generate impact noise in gears or trajectory fluctuation of the input side due to the nonlinearities. We have developed a simulation approach for motion control of servo presses with linkage mechanism through the vector method. The experiment result and the transient analysis result have good agreement. In this study, it is shown clearly that the cause of the trajectory fluctuation is the interaction of the nonlinearity of linkage mechanism and the discretization of a output side trajectory. The parameter design becomes easy and convenient by using the proposed diagram for the evaluation. The suitable parameter design shortens the cycle time and reduces the vibration of AC servo presses.
社団法人日本機械学会の論文
2006-09-25