Press machine and method for adjusting slide position thereof
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United States of America Patent
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Sep 25, 2018
Grant Date -
Jun 19, 2014
app pub date -
Jun 26, 2012
filing date -
Jul 29, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A press machine includes a controller including a displacement calculator being adapted to calculate a slide displacement with a slide being kept at a waiting position displaced from a top dead center by an amount corresponding to a predetermined crank angle based on a measured value of a pre-adjustment die height provided for a height adjustment of the slide, a desired value of a post-adjustment die height, the crank angle, a distance between an upper surface of a bolster and a crank center of an eccentric portion, a crank radius of the eccentric portion, and a distance between a lower surface of the slide and a point center, thereby associating the slide displacement with a difference between the pre-adjustment die height and the post-adjustment die height.
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