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US 10,809,700 B2Granted
Numerical controller
AssigneeFanuc Corporation
InventorTakumi Oohashi
Life of this patent
Estimating the term…
Abstract
A numerical controller performs control for changing a tool mounted on a spindle to another tool stored in a tool magazine based on a machining program. The numerical controller analyzes a command by a block of the machining program, predicts a time required for machining by the analyzed command, and selects a tool changeable before a tool change command, during tool selection, based on the predicted time.
Claims5
A numerical controller for performing control for changing a first tool mounted on a spindle to a second tool stored in a tool magazine based on a machining program, the numerical controller comprising:
- a processor configured to:
- analyze a command of a block of the machining program;
- when the analyzed command of the block is a tool selection command, prefetch, from the machining program, a block between the tool selection command and a tool change command executed after the tool selection command;
- predict a time required for machining the prefetched block;
- and
- select a tool which can be changed before the tool change command during tool selection, as a second tool, based on the predicted time required for machining.
3 more elements
Dependencies are inferred from the claim text.