Acoustic detection of contact between cutting tool and workpiece

Boots – shoes – and leggings

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

364183, 364184, 364508, 371 62, 371 64, 307231, 307234, 377 16, 318563, 73609, 73613, 73660, G06F 1546, G01N 2404, G01M 700

Patent

active

046316833

ABSTRACT:
A system and method for monitoring vibrations of a machine tool metal-cutting tool insert and interpreting them to promptly detect the initial touch to the workpiece and signal the tool to stop advancing before marring the surface. The signal generated by a sensor such as an accelerometer is preprocessed to eliminate lower frequency machine noise and detect the energy in a higher frequency band, then sampled and analyzed by digital circuitry. In order to avoid false alarms on high amplitude spiky noise pulses generated by traverse operation of the machine tool, the tool touch alarm is delayed longer than the maximum duration of the noise pulses. Two techniques are given to ignore the noise spikes while still detecting the tool touch signal.

REFERENCES:
patent: 3590670 (1971-07-01), Thompson
patent: 3822385 (1974-06-01), Kayalioglu
patent: 3961271 (1976-06-01), Zlydak et al.
patent: 4118792 (1978-10-01), Struger et al.
patent: 4270041 (1981-05-01), Pleyber
patent: 4287565 (1981-09-01), Haubner et al.
patent: 4355359 (1982-10-01), Kanegoe et al.
patent: 4374423 (1983-02-01), Kundler et al.
patent: 4428055 (1984-01-01), Zurbrick et al.
patent: 4451185 (1984-05-01), Yamakage
patent: 4451892 (1984-06-01), McMurty
patent: 4471444 (1984-09-01), Yee et al.
patent: 4495621 (1985-01-01), Nakagomi et al.
patent: 4520674 (1985-06-01), Canada et al.
patent: 4558311 (1985-12-01), Forsgren et al.
patent: 4562392 (1985-12-01), Davis et al.
Harting, D. R., "Demodulated Resonance Analysis--A Powerful New Incipient Failure Detection Technique", 23d International Instrumentation Symposium, May 1-5, 1977, pp. 493-498.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Acoustic detection of contact between cutting tool and workpiece does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Acoustic detection of contact between cutting tool and workpiece, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic detection of contact between cutting tool and workpiece will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-176039

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.