Control method for a machine tool with numerical control
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Accused Products
Abstract
There is described a control method for a tool machine. Said machine tool comprises adjustment devices which are used to produce relative displacement between a machining head and a work piece. The adjustment movements are detected by sensors associated with the adjustment devices. A value for the relative displacement from the machining head to the work piece is determined from the signals of the sensors associated with the adjustment devices. The adjustment devices are controlled according to the value of relative displacement in order to produce predetermined adjustment movements. State variables which describe relative displacement between the machining head and work pieces are detected in at least one additional sensor. The state variables are taken into account when the value for the relative displacement is determined.
19 Citations
31 Claims
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1-11. -11. (canceled)
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12. A method for controlling a machine tool, comprising:
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Providing a machine tool, comprising;
a machining head, an adjustment device to create a relative displacement between the machining head and a workpiece, a sensor assigned to the adjustment device to detect its adjustment movements, and an additional sensor to create a state variable based upon a relative displacement between the machining head and the workpiece;
determining a value for the relative displacement based upon signals of the sensor assigned to the adjustment device and based upon the state variable; and
controlling the adjustment device based upon the value of the relative displacement of the machining head to the workpiece. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A machine tool comprising:
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a machining head;
an adjustment device to create a relative displacement between a machining head and a workpiece;
a numerical control to control the adjustment device based upon a value of the relative displacement of the machining head to the workpiece;
a sensor assigned to the adjustment device to detect adjustment movements of the adjustment device;
an additional sensor to create a state variable based upon a relative displacement between the machining head and the workpiece; and
a value for the relative displacement between the machining head and the workpiece determined based upon signals of the sensor assigned to the adjustment device and based upon the state variable. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A laser machine tool comprising:
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a beam guidance device;
a beam focusing device;
a laser source to create a relative displacement between the beam guidance and focusing devices and a workpiece;
a numerical control to control the beam guidance and the beam focusing device based upon a value of the relative displacement of the laser source to the workpiece;
a sensor assigned to the laser source to detect adjustment movements causing displacements;
an additional sensor to create a state variable based upon a relative displacement between the beam guidance and focusing devices and the workpiece; and
a value for the relative displacement between the beam guidance and focusing devices and workpiece determined based upon signals of the sensors assigned to the laser source and based upon the state variable.
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Specification