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[CN 201910811433.8] A Feedback Compensation Method for Lower Dead Center Deviation of Servo Press
[CN 201910811433.8] Title of a servo press bottom dead center deviation feedback compensation method: Application number of a servo press bottom dead center deviation feedback compensation method: CN 201910811433.8 Applicant: Laser Research Institute of Shandong Academy of Sciences Application Date: 2019-8-29 Patent Type: Invention Application The present invention discloses a servo press bottom dead center deviation feedback compensation method. In a stamping process, the motor runs according to the compensated curve. The first stamping process compensation is zero. In the return process of the slider after the bottom dead center in each stamping process, the control software calculates the compensation amount according to the deviation feedback compensation algorithm, and calculates the new compensation curve, and finally controls the servo motor rotation according to the new compensation curve. It can measure the error between the actual value and the expected value of the bottom dead center of the slider in each stamping process, and automatically compensate the position curve of the servo motor by using the feedback control principle. After several stamping cycles, the lower limit error of the slider can be reduced to zero, and the curve compensation can be carried out at any time when the error increases due to changes in external conditions to ensure that the bottom dead center of the slider is equal to the expected value.
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