Press device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 26, 2008
Grant Date -
Aug 23, 2007
app pub date -
Aug 26, 2005
filing date -
Sep 9, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
In a press device for pressing a slider with a plurality of motors as driving sources, pressing is performed while a slider is kept horizontal even if an eccentric load is applied. In this press device, in the teaching stage, when the eccentric load is to be applied, a degree of shortage of a driving torque in each of the driving sources is determined at each timing when the eccentric load is applied so that a torque addition signal for compensating for the torque shortage is supplied to the respective corresponding driving sources corresponding to the respective timing during the actual machining
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