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US 2009/0112356 A1Published application
Numerical control apparatus with manual shift operation functionality
AssigneeOkuma Corporation
InventorTomohiro ABE
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AssigneeOkuma Corporation
InventorTomohiro ABE
Estimating the term…
A numerical control apparatus provides for manual shift operation involving feed shafts of a machine tool in terms of a work coordinate system easily and readily understood by an operator. The numerical control apparatus includes a manual shift amount input unit for receiving an amount of manual shift involving linear feed shafts as operator-input data in terms of a work coordinate system defined on the work revolved or rotated by a rotary feed shaft. The numerical control apparatus further includes a manual shift amount cumulative storage for cumulatively storing the received amount of manual shift in terms of a work coordinate system. Also included is a cumulative shift amount coordinate converter for converting the cumulative amount of shift from the work coordinate system data to data in terms of machine coordinate system defined on the machine tool. The apparatus's manual shift amount superimposing unit then superimposes the converted cumulative amount of shift on a controlled variable commanded in a machining program to generate the result to servo drivers.
A numerical control apparatus capable of controlling at least one linear feed shaft and at least one rotary feed shaft of a machine tool according to commands of a machining program and superimposing an amount of manual shift entered by manual shift operation during the controlling on a controlled variable according to a program command, the apparatus comprising:
A numerical control apparatus capable of controlling at least one linear feed shaft and at least one rotary feed shaft of a machine tool according to commands of a machining program and superimposing an amount of manual shift entered by manual shift operation during the controlling on a controlled variable according to a program command, the apparatus comprising:
A numerical control apparatus capable of controlling at least one linear feed shaft and at least one rotary feed shaft of a machine tool according to commands of a machining program and superimposing an amount of manual shift entered by manual shift operation during the controlling on a controlled variable according to a program command, the apparatus comprising:
Dependencies are inferred from the claim text.