Deflection correction system for a milling machine
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United States of America Patent
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Jul 1, 2014
Grant Date -
Dec 20, 2012
app pub date -
Jun 14, 2011
filing date -
Jun 14, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A milling machine has a carriage, a main spindle seat extending along an axis, and a motor operable to drive displacement of the main spindle seat relative to the carriage along the axis. A deflection correction system includes a control unit, a displacement sensor, at least one pressure cylinder, and a pressure sensor. The pressure cylinder includes a cylinder body, and a control rod extended retractably into the cylinder body. The control unit is configured to determine a pressure range as a function of displacement detected by the displacement sensor, and to maintain fluid pressure in the pressure cylinder within a pressure range, thereby controlling the control rod via the cylinder body to position the second end portion of the main spindle seat relative to the axis.
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