Tool compensation system

Details Tool compensation system Tool compensation system

1980-03-26

1981-10-20

Witkowski, S. J.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

318632, 318603, 364571, 364474, G05B 1925

Patent

active

042963648

ABSTRACT:
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.

REFERENCES:
patent: 3840792 (1974-10-01), Yokoe
patent: 4176396 (1979-11-01), Howatt

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