Work transfer apparatus for press machine, and work transfer unit
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United States of America Patent
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Feb 4, 2014
Grant Date -
May 10, 2012
app pub date -
Mar 29, 2010
filing date -
Jul 6, 2009
priority date (Note) -
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Abstract
A workpiece transfer apparatus includes: a feed driving mechanism that drives a transfer bar in a workpiece transfer direction; and a lift/clamp driving mechanism that drives the transfer bar in a lift direction and a clamp direction. The lift/clamp driving mechanism includes: a support of the transfer bar; first and second carriers movable in the clamp direction; first and second carrier driving mechanisms that drive the first and second carriers; a parallel link that rotatably connects the first carrier with the support; and a driving link that rotatably connects a first link of the parallel link and the second carrier. A first guide that guides the first carrier and a second guide that guides the second carrier are parallel to each other and are shifted from each other in the workpiece transfer direction.
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