Apparatus and method for tool break and wear detection

Details Apparatus and method for tool break and wear detection Apparatus and method for tool break and wear detection

G - Physics

01

N

349/35, 349/42

G01N 29/12 (2006.01) G05B 19/4065 (2006.01)

Patent

CA 2021111

RD 17,086 APPARATUS AND METHOD FOR TOOL BREAK AND WEAR DETECTION ABSTRACT OF THE DISCLOSURE A device for determining cutting tool wear and breakage has an accelerometer for sensing tool vibrations. Functions of the AC and DC power of the vibration signal, such as the powers themselves or the square root of the powers, are computed and compared. If the relationship between the AC and DC power changes beyond selected limits, an alarm is sounded or flashed. A method for determining cutting tool wear and breakage provides a tool vibration signal, computes functions of the AC and DC power of the vibration signal, and compares the AC and DC power signals.

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