ACOUSTIC DETECTOR FOR BREAKING AND TOOL FLASHING AND METHOD OF OPTIMIZING THE SAME

摘要

P A MACHINE TOOL CONTROLLER 24 DETECTS THE IMPORTANT BREAK OF A CUTTING TOOL AND THE FIRST CONTACT OF A TOOL WITH A PART IN ITS ADVANCE MOVEMENT, BY CONTROLLING VIBRATION SIGNALS DUE TO THE MACHINING OF PIECES AND INTERPRETING THE PROFILES OF THESE SIGNALS. The information from a program 34 makes it possible to improve the performance of the detector and to optimize it for the cutting conditions imposed by the command 20 of the machine-tool. THE CONTROLLER'S ANALOGUE CHANNEL GAIN IS ADJUSTED AND THE PARAMETERS COMMANDING THE DIGITAL PROFILE RECOGNITION LOGIC 32 ARE CHOSEN FROM THE PROGRAM INFORMATION REGARDING THE MACHINING PARAMETERS. THE DETECTION MODE OF TOOL BREAK OR TOOL FLASHING IS CHOSEN BY THE PROGRAM. / P P APPLICATION TO MACHINE TOOLS. / P