Back to results
US 4,296,364 AGranted
Tool compensation system
AssigneeFujitsu Fanuc Limited
InventorsHiroomi Fukuyama, Shinichi Isobe
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFujitsu Fanuc Limited
InventorsHiroomi Fukuyama, Shinichi Isobe
Estimating the term…
When machining with a numerical-controlled machine tool, both a command value providing the configuration of a finished product and a compensation value depending on the tool are needed, and tool compensation data must be corrected in response to tool wear. The present invention, taking notice of the fact that correction data corresponding to tool wear can be predetermined from the frequency or time of tool use and the fact that the amount of tool wear can be unequivocally determined by the quality of materials of the tool and work, provides circuitry for counting the frequency or time of use of the tool and circuitry for correcting by a predetermined value the content of a compensation value register having tool compensation date when the number of times a tool has been used or when the duration of tool use has reached a predetermined value.
In a tool compensation system of the type which includes a command value register for storing a movement command value, a compensation value register for storing a tool compensation value, and means for shifting a tool from a position represented by the movement command value to a position spaced apart therefrom a distance corresponding to the tool compensation value, the improvement comprising:
A tool compensation system for use with a numerical-controlled machine which machines a workpiece using a plurality of tools having predetermined wear rates, comprising:
Dependencies are inferred from the claim text.