SPRING WINDING MACHINE WITH AN ADJUSTABLE CUTTING DEVICE
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United States of America Patent
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Issued Date -
Oct 23, 2014
app pub date -
Apr 14, 2014
filing date -
Apr 18, 2013
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Abstract
A spring winding machine that manufactures helical springs by spring winding includes a feed device that feeds wire to a shaping device, wherein the shaping device has a winding tool and a pitch die; a cutting device that separates a finished helical spring from the wire after termination of shaping, wherein the cutting device has a cutting tool which, by a drive system, can be moved along a predefinable closed trajectory; a control device that controls the feed device, the shaping device and the cutting device on the basis of an NC control program; and a programmable trajectory-setting system that sets the shape and/or position of the trajectory to be passed through by the cutting tool, wherein a trajectory which is mirror-symmetrical with respect to a plane of symmetry and has a predefinable ratio of height to width.
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