B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 9/00 (2006.01) B23Q 15/00 (2006.01) G05B 19/4063 (2006.01)
Patent
CA 2184649
A system and method far characterizing a machining process using techniques of mechanical signature analysis produces discriminants based on vibrational activity measured at various positions on a machine tool. The system and method provide a complete characterization of an industrial machine tool including the machining structure, tooling, fixturing, workpiece, and operating environment under transient and steady state conditions both with and without machining load. The method includes selection of appropriate sensors (24), sensor locations (24), mounting methods (24), signal conditioning (26), and data acquisition (28) and analysis (30) based upon the particular type of machine and machining process. The vibration signature analysis includes both time and frequency domain analysis. Dynamic stiffness measurements (36) are utilized in combination with data gathered from the machine tool during idle and machining periods to generate uniform discriminants (32) which provide an indication of machine operation. Machine information, including the uniform discriminants, is preferably stored in a database for future comparison and trending.
Hamidieh Youssef Ali
Seth Brij Bahadur
Ford Motor Company Of Canada Limited
Sim & Mcburney
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