APPAREIL ET PROCEDE DE DETECTION DE RUPTURE ET D'USURE D'OUTIL

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 pow...

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Bibliographische Detailangaben
1. Verfasser:	THOMAS CHARLES EDMUND
Format:	Patent
Sprache:	fre
Schlagworte:	COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MEASURING METAL-WORKING NOT OTHERWISE PROVIDED FOR MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PERFORMING OPERATIONS PHYSICS REGULATING TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	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.