Rotating tool wear monitoring apparatus

Details Rotating tool wear monitoring apparatus Rotating tool wear monitoring apparatus

1982-04-02

1984-09-11

Smith, Jerry

Boots, shoes, and leggings

364508, 364551, 73104, G06F 1546

Patent

active

044714440

ABSTRACT:
A system is provided for predicting when the failure of a rotating machine ool or part is imminent or when a tool is worn. The system includes a transducer for producing an output related to the workpiece vibrations 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.

REFERENCES:
patent: 3819916 (1974-06-01), Watanabe
patent: 3834615 (1974-09-01), Watanabe et al.
patent: 3841149 (1974-10-01), Edwin et al.
patent: 3872285 (1975-03-01), Shum et al.
patent: 4176395 (1979-11-01), Howatt
patent: 4228514 (1980-10-01), Weiss
patent: 4326257 (1982-04-01), Sata et al.

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