Influence of blanking distance of materials on increase in blanking vibration using screw drive servo press

Murakami, Tomohiro; Yang, Ming; Kishi, Hiroshi; Mori, Sigeki; Ohkawa, Masahiro

doi:10.1299/mej.15-00572

Cited by 1 publication

(1 citation statement)

References 7 publications

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“…We determined the position of the counter pulse based on the data of the try blanking. The reason why the preview control was applied is based on our research according to which the breakage position of the materials is mostly the same, irrespective of the blanking velocity [4]. In addition, feedback control takes too long.…”

Section: Timing Control Of Counter Pulsementioning

confidence: 99%

Reducing Blanking Vibration with Active Vibration Control Using a Servo Press

Murakami¹,

Yang

Kishi³

et al. 2016

KEM

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Blanking noise and blanking vibration are causes of pollution. At the same time, blanking vibration disturbs the high precision of a press work product, and shortens the life expectancy of the press machine and the press die. Recently, the use of a servo press has been developed to improve these problems, using low speed blanking and pulse vibration banking. However, these methods lengthen the blanking time, so it is necessary to control the servo press properly in the case of blanking. In this study, we describe a principle for the reduction of blanking vibration when using a servo press, and we propose an active vibration control method for the reduction of blanking vibration. We used a crank servo press of 450kN in an experiment, which has a pulse motion of 10Hz. We conducted a simulation and an experiment of blanking using an active vibration control method, which we named “counter pulse blanking.” We confirmed that counter pulse blanking is effective in reducing vibration as a result of the simulation and the experiment.

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Section: Timing Control Of Counter Pulsementioning

confidence: 99%