Method of and device for correcting position of cutting-edge of

Details Method of and device for correcting position of cutting-edge of Method of and device for correcting position of cutting-edge of

1994-12-20

1996-04-30

Ruggiero, Joseph

Boots, shoes, and leggings

36447417, 36447435, 483 11, G05B 19404

Patent

active

055131131

ABSTRACT:
A method of and device for correcting a cutting-edge position of a tool installed in a numerically controlled machine. The device includes a CPU which operates a basic processing program, taking a cutting-edge position correction value thereinto, a judging unit for judging whether a temperature of the main spindle table is in a normal condition or an abnormal condition when exchanging the old tool for the new tool, a normal position correcting unit for detecting a movement amount of tool table necessary to bring the cutting-edge of the new tool into contact with a cutting-edge detecting sensor, an abnormal position correcting unit for detecting the movement amount of tool table necessary to bring the cutting-edge of the old tool into contact with the cutting-edge detecting sensor, and cutting ability adjusting unit for memorizing a dimensional change of the work machined as the cutting ability correction value of the tool in the abnormal condition. The normal and abnormal position correcting units memorize a difference between the movement amount including the cutting-edge position correction value on memory at that time and the predetermined standard dimension, as the normal and abnormal cutting-edge position correction value for the new tool, respectively.

REFERENCES:
patent: 3576540 (1971-04-01), Fair et al.
patent: 4502108 (1985-02-01), Nozawa et al.
patent: 4887221 (1989-12-01), Davis et al.
patent: 4942611 (1990-07-01), Kunugi et al.

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