Counterforce mechanism and methods of operation thereof
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United States of America Patent
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Oct 17, 2017
Issued Date -
N/A
app pub date -
Mar 2, 2011
filing date -
Mar 2, 2010
priority date (Note) -
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Abstract
A counterforce mechanism is arranged to exert a force on an object to maintain the object at a desired position. The mechanism comprises a driven body, a drive for moving the driven body, and a resilient coupling arrangement for coupling the driven body to a portion of an object. A control arrangement is arranged to output a drive signal to the driven body drive to move the driven body to a location where it exerts a force on the object via the coupling arrangement, such that the force counteracts an opposing force acting on the object and the mechanism holds the portion of the object at the desired position. A machine axis and a machine tool incorporating such a counterforce mechanism are also described, together with methods of operation thereof.
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