Tool position offsetting system for a spare tool

Details Tool position offsetting system for a spare tool Tool position offsetting system for a spare tool

1981-12-14

1983-09-13

Dobeck, B.

Electricity: motive power systems

Positional servo systems

Adaptive or optimizing systems including 'bang-bang' servos

29568, 408 8, 318572, 318565, G05B 1300

Patent

active

044045069

ABSTRACT:
A tool position offsetting system for a spare tool, including a tool life detecting device provided for detecting a broken or substantially worn tool and for replacing the same by a spare tool, and a detecting device which detects whether the spare tool is inserted in the tool spindle. If the detecting device makes a detection, an input controlling circuit applies several signals to a numerical controller so as to instruct the same to introduce the dimensional data for the spare tool into the memory of the numerical controller, resulting in amending the offset data stored in the memory before a machining operation. After the machining operation, the input controlling circuit applies several signals so as to remove the dimensional data from the memory, resulting in restoring the tool offset data to its original setting.

REFERENCES:
patent: 3626266 (1971-12-01), Sindelar et al.
patent: 3817647 (1974-06-01), Lemelson
patent: 4185376 (1980-01-01), Johnstone
patent: 4214191 (1980-07-01), Watanabe et al.
patent: 4246557 (1981-01-01), Shima et al.
patent: 4268949 (1981-05-01), Sato

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