JPH0297548U - - Google Patents
Info
- Publication number
- JPH0297548U JPH0297548U JP677289U JP677289U JPH0297548U JP H0297548 U JPH0297548 U JP H0297548U JP 677289 U JP677289 U JP 677289U JP 677289 U JP677289 U JP 677289U JP H0297548 U JPH0297548 U JP H0297548U
- Authority
- JP
- Japan
- Prior art keywords
- tool
- signal processing
- outputs
- processing units
- machine tool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Description
第１図は本考案の第１実施例による工具損傷検
出装置の構成を示す図、第２図はＡＥ信号処理部
の電気的構成を示すブロツク図、第３図は２つの
ＡＥセンサを含むＡＥセンサケースの斜視図、第
４図はその縦断面図、第５図はＡＥセンサを構成
する超音波素子の一例を示す正面図及び縦断面図
、第６図は第１実施例によるＡＥ信号処理部の各
部の波形を示す波形図、第７図は本考案の他の実
施例によるＡＥ信号処理部の構成を示すブロツク
図である。
１……主軸、２……ドリル、３……テーブル、
４……ワーク、５，６……ＡＥセンサ、７，８…
…ＡＥ信号処理部、９……アンド回路、１０……
出力回路、１１ａ，１１ｂ……バンドパスフイル
タ、１３ａ，１３ｂ……検波回路、１４ａ，１４
ｂ，３１……コンパレータ、１５ａ，１５ｂ，３
２……ワンシヨツトマルチバイブレータ、３０…
…周波数成分比較部。
Fig. 1 is a diagram showing the configuration of a tool damage detection device according to a first embodiment of the present invention, Fig. 2 is a block diagram showing the electrical configuration of the AE signal processing section, and Fig. 3 is a block diagram showing the electrical configuration of the AE signal processing section. FIG. 4 is a perspective view of the sensor case, FIG. 4 is a longitudinal sectional view thereof, FIG. 5 is a front view and longitudinal sectional view showing an example of the ultrasonic element constituting the AE sensor, and FIG. 6 is AE signal processing according to the first embodiment. FIG. 7 is a block diagram showing the configuration of an AE signal processing section according to another embodiment of the present invention. 1...Spindle, 2...Drill, 3...Table,
4... Work, 5, 6... AE sensor, 7, 8...
...AE signal processing section, 9...AND circuit, 10...
Output circuit, 11a, 11b...Band pass filter, 13a, 13b...Detection circuit, 14a, 14
b, 31... Comparator, 15a, 15b, 3
2...One-shot multivibrator, 30...
...Frequency component comparison section.
Claims (1)
けられた複数のＡＥセンサと、 前記各ＡＥセンサの出力のうち工具損傷時に得
られる所定周波数帯域のＡＥ信号レベルを検出す
る複数のＡＥ信号処理部と、 前記各ＡＥ信号処理部の出力の論理積をとるア
ンド回路と、を有することを特徴とする工具損傷
検出装置。[Claims for Utility Model Registration] A plurality of AE sensors installed near the tool of a machine tool without contacting the machine tool, and an AE signal level in a predetermined frequency band obtained when the tool is damaged among the outputs of each of the AE sensors. A tool damage detection device comprising: a plurality of AE signal processing units for detecting; and an AND circuit that performs a logical product of outputs of the respective AE signal processing units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP677289U JPH0297548U (en) | 1989-01-23 | 1989-01-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP677289U JPH0297548U (en) | 1989-01-23 | 1989-01-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0297548U true JPH0297548U (en) | 1990-08-03 |
Family
ID=31211223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP677289U Pending JPH0297548U (en) | 1989-01-23 | 1989-01-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0297548U (en) |
-
1989
- 1989-01-23 JP JP677289U patent/JPH0297548U/ja active Pending
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