G - Physics – 05 – B
Patent
G - Physics
05
B
354/21
G05B 19/18 (2006.01) B23Q 17/09 (2006.01) B23Q 17/12 (2006.01) G01N 3/58 (2006.01) G05B 19/4065 (2006.01)
Patent
CA 1178372
ABSTRACT OF THE DISCLOSURE A system is provided for predicting when the failure of a rotating machine tool or part is imminent or when a tool is worn. The system includes a transducer for producing an output related to the workpiece vibra- tions caused by the machine tool and an analog comparator which compares this output with a threshold signal related to the normal operation of the tool and established by a microcomputer which determines whether further signals which exceed the threshold are produced during each of a predetermined number of subsequent time intervals related to the rotational speed of the tool. If so, a "failure" signal is produced which may be used, for example, to cause retraction of the tool.
415557
Blomquist Donald S.
Yee Kenneth W.
Sim & Mcburney
U.s. Departm Ent Of Commerce The United States Of America Represented By The Secretary
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