Apparatus for detecting or predicting tool breakage

Details Apparatus for detecting or predicting tool breakage Apparatus for detecting or predicting tool breakage

2008-07-22

2008-07-22

Bui, Bryan (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C702S034000

Reexamination Certificate

active

10661572

ABSTRACT:
If a tool breakage occurs, a cutting time T and a maximum value (absolute value) G of a slope of a drop in a cutting load become small. A cutting load integrated value S increases as a tool wears and becomes small when the breakage occurs. Therefore, these values T, G, and S are obtained in a machining cycle, moving variable thresholds are obtained (updated) based on values T, G, and S obtained in a preceding machining cycle, and the thresholds and the values T, G, and S obtained in the current machining cycle are compared with each other to thereby determine an abnormal condition of the tool.

REFERENCES:
patent: 5780725 (1998-07-01), Tanaka
patent: 5857166 (1999-01-01), Kim
patent: 6463352 (2002-10-01), Tadokoro et al.
patent: 2003/0163286 (2003-08-01), Yasugi
patent: 1 166 960 (2002-01-01), None
patent: 1 342 534 (2003-09-01), None
patent: 52-095386 (1977-08-01), None
patent: 58-126042 (1983-07-01), None
patent: 59-107843 (1984-06-01), None
patent: 61-252052 (1986-11-01), None
patent: 02-256448 (1990-10-01), None
patent: 05-116056 (1993-05-01), None
patent: 5-305554 (1993-11-01), None
patent: 6-155244 (1994-06-01), None
patent: 6-201398 (1994-07-01), None
patent: 07-186010 (1995-07-01), None
patent: 9-1444 (1997-01-01), None
patent: 09-085585 (1997-03-01), None
patent: 2000-107987 (2000-04-01), None
patent: 2000-263378 (2000-09-01), None
Interrogation dated Aug. 10, 2006 regarding Japanese Patent Application No. 2002-295401.
Notice of Grounds for Rejection (Office Action) dated Nov. 1, 2004 and English translation.

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