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2010-12-10T16:50:19+01:00
2010-11-01T03:03:57Z
2010-12-10T16:50:19+01:00
Jouve S.A., EPO - Publication - KB, TaggedPDF v1.27
EP-0334341-A2-19890927
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EP-0334341-A2-19890927
The tool monitor according to this invention comprises an acoustic emissions (AE) sensor (5) to be mounted in the neighborhood of and without contact with a machine tool (1, 3, 15) and a tool damage detection means (6) adapted to detect any damage to a tool (2) of the machine tool (1, 3, 15) according to a level of an output AE signal within a predetermined frequency band generated from the AE sensor (5) at the time of occurrence of damage. Since this AE sensor (5) is not in contact with the machine tool spindle (1), work table (3) or work piece (4), it is easy to set the sensitivity of the AE sensor (5) and variations in the AE sensor output signal level are minimized. The AE sensor (5) is also effectively protected against flying chips, and noise due to contact with the chips is reduced, thereby minimizing the possibility of erroneous operation.
The tool monitor according to this invention comprises an acoustic emissions (AE) sensor (5) to be mounted in the neighborhood of and without contact with a machine tool (1, 3, 15) and a tool damage detection means (6) adapted to detect any damage to a tool (2) of the machine tool (1, 3, 15) according to a level of an output AE signal within a predetermined frequency band generated from the AE sensor (5) at the time of occurrence of damage. Since this AE sensor (5) is not in contact with the machine tool spindle (1), work table (3) or work piece (4), it is easy to set the sensitivity of the AE sensor (5) and variations in the AE sensor output signal level are minimized. The AE sensor (5) is also effectively protected against flying chips, and noise due to contact with the chips is reduced, thereby minimizing the possibility of erroneous operation.
en
European Patent Office
EP0334341
EP 0334341
B23B 49/00
Tool monitor
Tool monitor - European Patent Office - EP 0334341 A2
Tool monitor - European Patent Office - EP 0334341 A2
Adobe PDF Library 8.0
"EP0334341"; "EP 0334341"; "B23B 49/00"; "Tool monitor"
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EP
0334341
A2
1989-09-27
89105179
1989-03-22
JP
7159288
1988-03-24
JP
31075688
1988-12-07
B23B 49/00
OMRON TATEISI ELECTRONICS CO.
Sato, Masanori c/o Omron Tateisi Electronics Co.
Tsujino, Koich c/o Omron Tateisi Electronics Co.
WILHELMS, KILIAN & PARTNERPatentanwälte
Tool monitor
Werkzeugüberwachung
Tool monitor
Moniteur d'outil
The tool monitor according to this invention comprises an acoustic emissions (AE) sensor (5) to be mounted in the neighborhood of and without contact with a machine tool (1, 3, 15) and a tool damage detection means (6) adapted to detect any damage to a tool (2) of the machine tool (1, 3, 15) according to a level of an output AE signal within a predetermined frequency band generated from the AE sensor (5) at the time of occurrence of damage. Since this AE sensor (5) is not in contact with the machine tool spindle (1), work table (3) or work piece (4), it is easy to set the sensitivity of the AE sensor (5) and variations in the AE sensor output signal level are minimized. The AE sensor (5) is also effectively protected against flying chips, and noise due to contact with the chips is reduced, thereby minimizing the possibility of erroneous operation.
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