JPH02116453A - Tool holder with detector - Google Patents
Tool holder with detectorInfo
- Publication number
- JPH02116453A JPH02116453A JP1001998A JP199889A JPH02116453A JP H02116453 A JPH02116453 A JP H02116453A JP 1001998 A JP1001998 A JP 1001998A JP 199889 A JP199889 A JP 199889A JP H02116453 A JPH02116453 A JP H02116453A
- Authority
- JP
- Japan
- Prior art keywords
- main body
- tool
- cutting tool
- light
- sensor
- 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
- 238000005520 cutting process Methods 0.000 claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000000758 substrate Substances 0.000 abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000284 extract Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は本体の中空部に挿着した切削工具の損傷及び
チッピング・欠損などの検出２ルを具えた検出器付き工
具ホルダに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tool holder with a detector equipped with a detector for detecting damage, chipping, etc. of a cutting tool inserted into a hollow part of the main body.
切削中の工具寿命（損傷、欠損）検出はマシニングセン
ターによるＮＣ加工において無人化運転に不可欠である
。Detection of tool life (damage, chipping) during cutting is essential for unmanned operation in NC machining using machining centers.
従来被削材が回転し工具が回転しない場合、第９図に示
すようにバイｌ−（Ｂ）の後端に直接センサー（Ｓ）を
取り付けておき、工具から切削中の信号を容易に検出す
ることができたが回転する工具においては第１０図（イ
）に示すように工具（１）からでる信号は工具に接する
センサー（５）がキャッチして、センサーと連通ずるＦ
Ｍ波変換器（Ｆ）によりＦＭ （７６〜９０ＭＨｚ）波
として発振器（Ｒ）から送信される。Conventionally, when the workpiece rotates and the tool does not rotate, a sensor (S) is attached directly to the rear end of the tool (B) as shown in Figure 9, and the cutting signal from the tool can be easily detected. However, in the case of a rotating tool, as shown in Figure 10 (a), the signal coming from the tool (1) is caught by the sensor (5) that is in contact with the tool, and the signal is communicated with the sensor (F).
It is transmitted from the oscillator (R) as an FM (76-90MHz) wave by the M-wave converter (F).
送信されたＦＭ波を第１０図（ロ）に示す受信用アンテ
ナ（Ａ）にて受信されるものがある。さらに、特開昭６
０−２６３６４７号公報に開示されたものでは油室を介
してＡＥ倍信号取り出すものがあり、特開昭６０−２６
３６４６号公報に記載されたようにＡＥ倍信号薄肉平軸
受を介して取り出すものもあった。The transmitted FM waves are received by the receiving antenna (A) shown in FIG. 10(b). In addition, JP-A-6
There is a device disclosed in Japanese Patent Application Laid-open No. 0-263647 that takes out the AE multiplied signal through an oil chamber, and
As described in Japanese Patent Application No. 3646, there was also one that took out the signal through an AE double signal thin-walled flat bearing.
上記ＦＭ波変換器を用いるものでは、ＦＭ波に機械系の
モータ・軸受・歯車などのノイズが混り切削時に生ずる
信号だけを判別して取り出すことができなかった。さら
に、油室を介してＡＥ倍信号取り出すものではＡＥ倍信
号油に伝播して受信するため受信信号にバラツキがあり
、正確に取り出すことができなかった。さらに薄肉平軸
受を介してＡＥ倍信号取り出すものでは、平軸受と工具
保持部分と直接接触するため接触状態の変化によってＡ
Ｅ倍信号バラツキが生じ、正確にＡＥ倍信号取り出すこ
とができなかった。In those using the above-mentioned FM wave converter, the FM waves are mixed with noise from mechanical motors, bearings, gears, etc., and it is not possible to distinguish and extract only the signals generated during cutting. Furthermore, in the case where the AE multiplied signal is extracted through the oil chamber, the AE multiplied signal propagates through the oil and is received, resulting in variations in the received signal and cannot be extracted accurately. Furthermore, in the case where the AE multiplied signal is taken out through a thin-walled flat bearing, the flat bearing and the tool holding part come into direct contact, so the A
Variations in the E-fold signal occurred, and it was not possible to accurately extract the AE-fold signal.
本発明は、上記問題点を解決し回転工具から確実に切削
時の信号を非接触で取り出しを行なったものである。即
ち、切削工具の柄部に接していて切削加工中に生じるＡ
Ｅ・振動・歪みなどを捉えるセンサーと、該センサーか
ら送られる出力信号を受ける発信用基板とが本体内に組
込まれ、該発信用基板からの信号電流を受けて、これを
光信号に変換する発光ダイオードが本体の外周面に組込
まれると共に、外筒体の内周面に発光ダイオードに対向
して配置されて光信号を受ける受光素子と、該受光素子
が受けた光信号を電圧に変換しこれをコントローラに送
る受信用基板とを外筒体内に収容したことにより課題を
解決したのである。The present invention solves the above-mentioned problems and reliably extracts cutting signals from a rotating tool in a non-contact manner. In other words, A that is in contact with the handle of the cutting tool and is produced during cutting.
A sensor that captures E, vibration, distortion, etc., and a transmitting board that receives the output signal sent from the sensor are built into the main body, and it receives a signal current from the transmitting board and converts it into an optical signal. A light emitting diode is incorporated into the outer circumferential surface of the main body, and a light receiving element is disposed on the inner circumferential surface of the outer cylindrical body to face the light emitting diode and receives an optical signal, and the light receiving element converts the received optical signal into a voltage. The problem was solved by housing the receiving board that sends this to the controller inside the outer cylinder.
切削加工中、切削工具から伝えられるＡＥ・振動などは
矢印（Ｄ）方向に回転する本体（２）の外周面に取付け
られた発光ダイオ−１” （１０）から光信号として発
せられる。本体（２）を回転自在に支持する外筒体（３
）の内周面に配置された複数の受光素子（１３）は受信
用基板（１５）に順次光信号を送る。受信用基板（１５
）では光信号を電圧に変換してリード線（１４） 、
（１６）などを経て図示しないコントローラに信号が送
られ工作機械の制御がなされる。During the cutting process, AE, vibration, etc. transmitted from the cutting tool are emitted as optical signals from a light emitting diode (10) attached to the outer circumferential surface of the main body (2), which rotates in the direction of arrow (D).The main body ( 2) rotatably supports the outer cylindrical body (3).
) A plurality of light receiving elements (13) arranged on the inner circumferential surface of the receiving board (15) sequentially send optical signals to the receiving board (15). Receiving board (15
) converts the optical signal into voltage and connects the lead wire (14),
(16) etc., a signal is sent to a controller (not shown) to control the machine tool.
次に本発明の実施例を図面について説明する。 Next, embodiments of the present invention will be described with reference to the drawings.
第１図及び第２図において図示しない工作機のスピンド
ルに装着される柄部（２４）を一端に、切削工具（１）
の柄部（ｌａ）を取付けるための中空部（２５）を他端
に具備した本体（２）は、外筒部（３）に軸受（８）、
（８）を介して回転自在に挿通されている。外筒部（
３）は工作機械（図示せず）に取付けられ位置決め固定
ブロック（２２）に回り止めピン（２０）を介して工作
機械に固定されている。In FIGS. 1 and 2, the cutting tool (1) is attached to one end of the handle (24) attached to the spindle of a machine tool (not shown).
The main body (2) has a hollow part (25) at the other end for attaching the handle part (la) of the main body (2), and the outer cylinder part (3) has a bearing (8),
It is rotatably inserted through (8). Outer cylinder part (
3) is attached to a machine tool (not shown) and is fixed to the machine tool via a locking pin (20) to a positioning fixing block (22).
切削工具（１）は中空部（２５）にボルト（４ａ）。The cutting tool (1) has a bolt (4a) in the hollow part (25).
（４ｂ）によって固定されており、切削工具の柄部（ｌ
ａ）の端面にはボルト（７）によって本体の中空部内に
取付けられたセンサー固定用台具（２３）にボルト（６
）によって固定されたセンサー（５）が接している。セ
ンサー（５）は中空部（２５）の奥に設けられた発信用
基板（１１）にリード線（２６）により接続され、さら
に該発信用基板は中空部（２５）最奥部に収容されたバ
ッテリ （１２）に接続している。本体（２）の外周面
に位置する発光ダイオード（１０）は発信用基板（１１
）と接続していて切削工具から発するＡＥ・振動・歪み
などの信号電流を受けて光信号を発する。(4b), and the handle of the cutting tool (l
On the end face of a), a bolt (6) is attached to a sensor fixing fixture (23) installed in the hollow part of the main body by a bolt (7).
) is in contact with the sensor (5) fixed by the sensor (5). The sensor (5) was connected by a lead wire (26) to a transmitting board (11) provided at the back of the hollow part (25), and the transmitting board was housed in the innermost part of the hollow part (25). Connected to battery (12). A light emitting diode (10) located on the outer peripheral surface of the main body (2) is attached to a transmitting board (11).
) and receives signal currents such as AE, vibration, and distortion emitted from cutting tools and emits optical signals.
外筒部（３）の内周面には上述の発光ダイオード（１０
）と対向する位置に受光素子（■３）が９０゜の等間隔
を明けて配置されていて、発光ダイオード（１０）から
の光信号を受ける。さらに受光素子（１３）と連通して
受信用基板（１５）が配置されていて、受信用基板は光
信号を電圧に変換し、リード線（１４） 、 （１６）
、 （１７） 、 （１９）を経て図示しないコント
ローラに電圧信号を送る。The above-mentioned light emitting diode (10
) A light receiving element (3) is arranged at an equal interval of 90 degrees at a position facing the light emitting diode (10), and receives an optical signal from the light emitting diode (10). Furthermore, a receiving board (15) is disposed in communication with the light receiving element (13), and the receiving board converts the optical signal into voltage, and connects lead wires (14) and (16).
, (17), and (19) to send a voltage signal to a controller (not shown).
第３図及び第４図に示す実施例は、切削工具から発する
ＡＥ・振動・歪みなどを受けるセンサー（５）を切削工
具の柄部（１ａ）の側面に取付けたものを示す。なお（
２７）は切削工具の突き出し量を設定する位置決めボル
トである。第５図及び第６図に示すものは発光ダイオー
ド（１０）を任意の角度で２個取付けたものであって発
光ダイオードから発する光信号を連続的に捉えることが
できるようにしたものである。第７図及び第８図では受
光素子（１３）を外筒体（３）の内周面に沿って多数配
置し、多数の受光素子は発光ダイオードから発する光信
号を連続的に捉えることができるようにしたものである
。The embodiment shown in FIGS. 3 and 4 shows a sensor (5) that receives AE, vibration, distortion, etc. emitted from the cutting tool, and is attached to the side surface of the handle (1a) of the cutting tool. In addition(
27) is a positioning bolt that sets the amount of protrusion of the cutting tool. The device shown in FIGS. 5 and 6 has two light emitting diodes (10) mounted at arbitrary angles, so that optical signals emitted from the light emitting diodes can be continuously captured. In FIGS. 7 and 8, a large number of light receiving elements (13) are arranged along the inner peripheral surface of the outer cylinder (3), and the large number of light receiving elements can continuously capture optical signals emitted from light emitting diodes. This is how it was done.
第１１図は切削工具の逃げ面の最大摩耗量と切削工具か
ら生じる出力信号（出力電圧）の関係の測定結果を示す
。これから摩耗量と出力電圧とが正比例していることが
分かる。FIG. 11 shows the measurement results of the relationship between the maximum amount of wear on the flank surface of the cutting tool and the output signal (output voltage) generated from the cutting tool. It can be seen from this that the amount of wear and output voltage are directly proportional.
また、第１１図に示すものは切削中に生じている出力信
号（Ｖ）を電磁オシログラフで記録した結果を示す。Moreover, what is shown in FIG. 11 shows the result of recording the output signal (V) generated during cutting using an electromagnetic oscilloscope.
この発明は工具を保持する本体内にセンサーと発信装置
を内蔵して切削工具にセンサーを接触させ、切削中玉具
に生じる振動・ＡＥ・音などの出力を該センサーでキャ
ッチし、光を媒体とした信号に変換して回転する外周部
に取付けた１個ないしは複数個の発光ダイオードから発
信させ、本体を回転自在に支持する外筒体の内側に発信
用発光ダイオードに対応した内周部に複数の受光素子を
取付けて非接触で回転する工具に生じる振動およびＡＥ
波などを受信するようにしたので、ノイズや受信信号の
バラツキなどに妨げられず切削工具から正確な信号を受
けることができ、切削加工状態に適合した制御を迅速に
なしうる。従って出力信号（Ｖ）より切削工具の損傷を
コンピュータで推定して工具自動交換を行ない、ＦＡ化
・無人稼動ができるようになった。This invention incorporates a sensor and a transmitter in the main body that holds the tool, contacts the cutting tool with the sensor, uses the sensor to catch the output of vibrations, AE, sounds, etc. that occur in the cutting tool, and transmits the light into a medium. The signal is converted into a signal and transmitted from one or more light emitting diodes attached to the rotating outer periphery, and an inner periphery corresponding to the transmitting light emitting diode is placed inside the outer cylindrical body that rotatably supports the main body. Vibration and AE caused by a tool that rotates without contact with multiple light-receiving elements installed
Since it receives waves, it is possible to receive accurate signals from the cutting tool without being hindered by noise or variations in received signals, and it is possible to quickly perform control appropriate to the cutting state. Therefore, damage to the cutting tool is estimated using a computer based on the output signal (V) and the tool is automatically replaced, making it possible to implement FA and unmanned operation.
第１図はこの発明の実施例の横断面図、第２図は第１図
ｎ−ｎ線による断面図、第３図は他の実施例の横断面図
、第４図は第３図ＩＶ−ＩＶ線による断面図、第５図は
さらに他の実施例の横断面図、第６図は第５図Ｖｌ−Ｖ
ｌ線による断面図、第７図は別の実施例の横断面図、第
８図は第７図■−■線による断面図、第９図は切削工具
が非回転の場合の検知手段の概略図、第１Ｏ図（イ）は
従来品の横断面図、同図（ロ）−はアンテナ部の概略図
、第１１図は出力電圧と逃げ面最大摩耗量の関係の測定
値を示すグラフ、第１２図は切削中の出力電圧を示すオ
シログラフである。
１・・・切削工具、！ａ・・・柄部、２・・・本体、３
・・・外筒体、８・・・軸受、１０・・・発光ダイオー
ド、１１・・・基板、１２・・・バッテリー １３・・
・受光素子、１５・・・基板、２４・・・本体の柄部、
２６・・・中空部。
代理人 弁理士 河 内 潤 二FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line nn in FIG. 1, FIG. 3 is a cross-sectional view of another embodiment, and FIG. 4 is FIG. 5 is a cross-sectional view of another embodiment, and FIG. 6 is a cross-sectional view taken along line IV.
7 is a cross-sectional view of another embodiment; FIG. 8 is a sectional view taken along line ■-■ in FIG. 7; and FIG. 9 is a schematic of the detection means when the cutting tool is not rotating. Figure 10 (A) is a cross-sectional view of the conventional product, Figure 1 (B) is a schematic diagram of the antenna section, and Figure 11 is a graph showing the measured value of the relationship between output voltage and maximum flank wear amount. FIG. 12 is an oscilloscope showing the output voltage during cutting. 1...Cutting tools! a...Handle, 2...Body, 3
...Outer cylinder body, 8...Bearing, 10...Light emitting diode, 11...Substrate, 12...Battery 13...
- Light receiving element, 15... substrate, 24... handle of main body,
26...Hollow part. Agent Patent Attorney Junji Kawauchi
Claims (3)
有し、工作機械のスピンドルに装着される柄部を他端に
形成した本体と、該本体を回転可能に支持する外筒体と
からなり、回り止めピンを介して工作機械に固定される
工具ホルダにおいて、切削工具の柄部に接していて切削
加工中に生ずるＡＥ・振動・歪みなどを捉えるセンサー
と、該センサーから送られる出力信号を受ける発信用基
板とが本体内に組込まれ、該発信用基板からの信号電流
を受けて、これを光信号に変換する発光ダイオードが本
体の外周面に組込まれると共に、外筒体の内周面に発光
ダイオードに対向して配置されて光信号を受ける受光素
子と、該受光素子が受けた光信号を電圧に変換しこれを
コントローラに送る受信用基板とを外筒体内に収容した
ことを特徴とする検出器付き工具ホルダ。(1) A main body that has a hollow part at one end for gripping the handle of a cutting tool and a handle attached to the spindle of a machine tool at the other end, and an outer cylinder that rotatably supports the main body. In the tool holder, which is fixed to the machine tool via a locking pin, there is a sensor that is in contact with the handle of the cutting tool and captures AE, vibration, distortion, etc. that occur during cutting, and a sensor that detects the AE, vibration, distortion, etc. that occurs during cutting, and A transmitting board that receives an output signal from the transmitting board is built into the main body, and a light emitting diode that receives a signal current from the transmitting board and converts it into an optical signal is built into the outer peripheral surface of the main body. A light-receiving element that is disposed on the inner peripheral surface of the light-emitting diode to face the light-emitting diode and receives an optical signal, and a receiving board that converts the optical signal received by the light-receiving element into voltage and sends it to the controller are housed in the outer cylinder. A tool holder with a detector.
多数配置されている請求項１記載の検出器付き工具ホル
ダ。(2) The tool holder with a detector according to claim 1, wherein a large number of the light receiving elements are arranged continuously along the inner peripheral surface of the outer cylinder.
れている請求項１記載の検出器付き工具ホルダ。(3) The tool holder with a detector according to claim 1, wherein a plurality of said light emitting diodes are arranged around the outer periphery of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1001998A JPH02116453A (en) | 1989-01-10 | 1989-01-10 | Tool holder with detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1001998A JPH02116453A (en) | 1989-01-10 | 1989-01-10 | Tool holder with detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02116453A true JPH02116453A (en) | 1990-05-01 |
Family
ID=11517114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1001998A Pending JPH02116453A (en) | 1989-01-10 | 1989-01-10 | Tool holder with detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02116453A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04135144A (en) * | 1990-09-21 | 1992-05-08 | Mitsubishi Motors Corp | Tool state detecting device in cutting machine |
| JP2001099735A (en) * | 1999-08-09 | 2001-04-13 | Cobe Lab Inc | Measuring and monitoring method of related parameter difference used in pressure difference evaluation or the like |
| US7306736B2 (en) | 2000-12-08 | 2007-12-11 | Nephros, Inc. | Valve mechanism for infusion fluid systems |
| CN103203661A (en) * | 2013-03-19 | 2013-07-17 | 大连理工大学 | Rotary three-dimensional piezoelectric force measurement cutter handle device |
| US11440152B2 (en) | 2018-08-31 | 2022-09-13 | Fanuc Corporation | Machining environment measurement device |
-
1989
- 1989-01-10 JP JP1001998A patent/JPH02116453A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04135144A (en) * | 1990-09-21 | 1992-05-08 | Mitsubishi Motors Corp | Tool state detecting device in cutting machine |
| JP2001099735A (en) * | 1999-08-09 | 2001-04-13 | Cobe Lab Inc | Measuring and monitoring method of related parameter difference used in pressure difference evaluation or the like |
| US7306736B2 (en) | 2000-12-08 | 2007-12-11 | Nephros, Inc. | Valve mechanism for infusion fluid systems |
| CN103203661A (en) * | 2013-03-19 | 2013-07-17 | 大连理工大学 | Rotary three-dimensional piezoelectric force measurement cutter handle device |
| US11440152B2 (en) | 2018-08-31 | 2022-09-13 | Fanuc Corporation | Machining environment measurement device |
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