Numerical controller with function of decelerating reference variable in path table operation
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United States of America Patent
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N/A
Issued Date -
Oct 30, 2008
app pub date -
Apr 22, 2008
filing date -
Apr 24, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A numerical controller capable of avoiding a shock to a machine by a controlled axis when a command of an alarm, a reset or a feed hold is issued in a path table operation. The numerical controller performs the path table operation where position of a controlled axis of a machine is controlled in synchronism with an input value of a reference variable indicative of time, a position of an axis or a position of a spindle according to a data table that stores command positions of the controlled axis respective for set values of the reference variable. The numerical controller comprises deceleration/stop command receiving means that receives a command to decelerate and stop the controlled axis in the path table operation; and decelerating means that gradually reduces a rate of increase of the reference variable to zero so that the controlled axis is decelerated and stopped in response to the deceleration/stop command.
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