Punching apparatus
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United States of America Patent
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Jul 25, 2017
Grant Date -
May 4, 2017
app pub date -
Jun 12, 2015
filing date -
Jun 13, 2014
priority date (Note) -
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Abstract
A punching apparatus includes punching tools and actuators positioned above and aligned with the respective punching tools to actuate the punching tools along an operating direction so as to interact with a piece to be worked. The punching tools and the actuators are arranged side by side along at least one row. The punching apparatus includes at least one barrier optical sensor, suitable to generate a light beam that is put side by side to the row of punching tools and actuators, and reference elements, each of which is associated to a respective punching tool and/or actuator to intercept the light beam. The barrier optical sensor is arranged to detect changes in the light beam produced by one of the reference elements moving along the operating direction so as to measure a position and/or a stroke and/or a speed of a punching tool associated to the reference element.
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