JPS5840246A - Method for detecting cutter tip damage - Google Patents
Method for detecting cutter tip damageInfo
- Publication number
- JPS5840246A JPS5840246A JP13576681A JP13576681A JPS5840246A JP S5840246 A JPS5840246 A JP S5840246A JP 13576681 A JP13576681 A JP 13576681A JP 13576681 A JP13576681 A JP 13576681A JP S5840246 A JPS5840246 A JP S5840246A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- sensor
- tool
- workpiece
- amplifier
- 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
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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
-
- 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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/005—Equipment for measuring the contacting force or the distance before contacting between two members during the positioning operation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37351—Detect vibration, ultrasound
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は1作機械勢κおいて被加工物を転削加工する
WaK使用する切削工具の刃先の伽傷や均量を検出する
方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for detecting scratches and uniformity on the cutting edge of a cutting tool using WaK for milling a workpiece with one machine machine κ.
近年、各楠工作機械の自動化、無人化が過み、特に敞近
では高能率化、^精膨化憂目推す技術紬尭が盛んκ行わ
れて−る。In recent years, various Kusunoki machine tools have been automated and unmanned, and in particular, in Chungjin, technology is being actively promoted with the goal of increasing efficiency and refinement.
このような状況下に番って工作機械の能率、精1!0崗
上をIIbがているのは、切陶工^の損傷状1中寿命を
容易κ感知することができな−ためである。切削工AO
損傷中摩耗が進んで4社中寿命の状mKなつえ場合に,
無人化され九工作機械にありてはζれが感知できないと
なると、被加工物の仕上》不良を多量に生じた〕、2次
的KFi工作機械自体の一部を破壊してしまうという事
態を起しかねな−。Under these circumstances, the efficiency of the machine tool is above 1!0, because it is not possible to easily detect damage to the cutting potter. . Cutting machine AO
In the case of mK Natsue, which is at the end of its service life due to progressive wear during damage,
If the unmanned KFi machine tool could not detect the ζ error, it would result in a large number of defects in the finish of the workpiece and the destruction of a part of the secondary KFi machine tool itself. I might wake up.
従来はこのような間龜を未然に防ぐために作業者が時々
工具刃先の形状を監視しては工具の交換を行うというこ
とを実施していた。Conventionally, in order to prevent such gaps from occurring, the operator would occasionally monitor the shape of the cutting edge of the tool and replace the tool.
ま九、ζのような工具の摩耗子折損などを検出する方法
として直筆的あるいは間接的に%定の稠象をつかんで判
定するζとも検討されてーる。ζ is also being considered as a method for detecting wear elements of tools such as ζ, such as ζ, by directly or indirectly grasping the % constant image.
その1つとしてアコースティックエミッション(▲c@
ustic Eahissiui )信号(以下単K
AIE信号と略記する)を利用する方法が提案されてい
るが、未だ実用化されるまでκは至っていない。One of them is acoustic emission (▲c@
ustic Eahissiui ) signal (hereinafter simply referred to as K
A method using the AIE signal (abbreviated as AIE signal) has been proposed, but κ has not yet been put into practical use.
七の理由としてL1特定のノイズ(切削屑など)t−A
K値号の中から完全に除去して欠慣4Ii号のみ′ft
堰出すことが見出されていない丸めと考えられる。The seventh reason is L1 specific noise (cutting debris, etc.) t-A
Completely removed from the K value numbers and only missing 4Ii'ft
It is considered to be a rounding that has not been found to dam.
本発明者らは上記のようなムIL(1号を利用し九工具
刃先の損傷検出法にあって、ノイズの中でも11tK影
響の大きい切削屑によるものを皆@に近い&mKする方
法について検討した結果、AE信号を検知するAEセン
サーを被剛材を固定する固定台内に設置すれはよいこと
を見出し、也・O発明に至つ九ものでるる。The present inventors have investigated a method for detecting damage to a cutting edge of a nine-tool using the above-mentioned MuIL (No. 1), in which damage caused by cutting chips, which has a large influence of 11tK, is all close to @ &mK among noises. As a result, they discovered that it would be better to install an AE sensor that detects AE signals in a fixing base that fixes the rigid material, and this led to the invention of Y/O.
以下この発明の一実施例を角材を転削する際に用いるフ
ライス盤につiて固自を参照して詳mK説明する。An embodiment of the present invention will be described in detail below with reference to a milling machine used for milling a square material.
第1図1被剛材2を固定する固定台l内にAEセンサー
発信セット8を設置したフライス盤人の模式図、絽2−
は第1輪のフライス盤AをX方向からみ九断拘図であっ
て、8のAEセンサー発信セット中には第8図に示すよ
うにアタッチメント7、AIセン?−8、増@@9、電
源10およびそして固定台IK固定され九被削材2をカ
ッター6に取付は九チップ(工具刃先)4で主軸6にて
同転させつつ切削する場合、チップ4が欠損してムに4
号が発生ずると、フライスmAの固定台1内に組込まれ
九^Eセンサー発信セット8から情報が発信される。Fig. 1 Schematic diagram of a milling machine operator installing the AE sensor transmitter set 8 in the fixing base l that fixes the rigid material 2.
8 is a nine-cut view of the first wheel milling machine A viewed from the X direction, and during the AE sensor transmission set in 8, attachment 7, AI sensor? -8, increase @@9, power source 10 and fixing base IK fixed 9 workpiece material 2 is attached to cutter 6 when cutting with 9 tips (tool cutting edge) 4 while rotating simultaneously with main shaft 6, tip 4 is missing and 4
When a signal occurs, the information is transmitted from the 9^E sensor transmission set 8, which is installed in the fixed base 1 of the milling cutter mA.
即ち発生し九AEI1号はAH七ンナ−IRi信セット
畠中のアタッチメント7を通過してAICセンサー3に
入シ、9のAKセンを一増Is器によシ増−されて電1
110によ)稼動する無IIi!発信器11によって情
報として発信されるのである。That is, the generated 9 AEI No. 1 passes through the attachment 7 of the AH 7-na-IRi communication set Hatanaka and enters the AIC sensor 3, and the AK sensor of 9 is increased by the Is device to increase the electric power 1.
110) No IIi in operation! It is transmitted as information by the transmitter 11.
そしてとの妬fiされたムE信号は、フラ(ス盤よni
干離れ九位tK設置された無線受信器12に受信される
。この#l−受信器124Cは謳4図にその機式図とし
て示すように増幅アンプ18、信号出力アンプ14、膏
報器1bが接続されているので、受信器12によって受
信されたAE信号は、。And the envious mu-e signal was
The signal is received by the wireless receiver 12 installed at a distance of 9. This #l-receiver 124C is connected to the amplification amplifier 18, signal output amplifier 14, and information device 1b as shown in the mechanical diagram in Figure 4, so the AE signal received by the receiver 12 is ,.
18の増幅アンプで増@され、信号出力アンプ14を経
て警報4ei!16に伝達するようkなっておシ、ここ
でチップの摩耗、欠損iAE値号として瞥−を発するの
である。It is increased by 18 amplification amplifiers, and the alarm 4ei is output through the signal output amplifier 14! 16, where the wear of the tip and the defective iAE value are detected.
征ってこの発明の検出方法によれに1切削屑ノイズが殆
んど検知されないので、欠損によるAE*v’i釉度よ
く検出することがでもるのである。Furthermore, since the detection method of the present invention hardly detects any cutting debris noise, it is possible to detect the degree of AE*v'i glaze caused by defects with good accuracy.
これに対して従来の転削加工時の工具刃先欠損を^E傷
信号して検知する方法においては、AE傷信号発生源が
工具刃物にあるから、AEセンサーは工具刃物儒に設置
しないとだめだという観念があって、常に刃物IIII
KAEセンサ一番゛設置していた。On the other hand, in the conventional method of detecting a chipped tool edge during milling by using an E flaw signal, the AE flaw signal generation source is in the tool edge, so the AE sensor must be installed at the tool edge. There is an idea that it is, and it is always cutlery III.
The first KAE sensor was installed.
ところが発生する切削屑の大部分はチップ刃先にある丸
め、AEセンサーを工具刃物@に設置してい九のでは切
削屑ノイズの混入を防ぐことは不可能であった。However, most of the cutting debris generated is from the rounded edges of the chips, and with the AE sensor installed at the tool blade @9, it was impossible to prevent the mixing of cutting debris noise.
またチップ刃先の欠損によるAH信号は、AHセ/サー
に感知されるまでの聞O伝達経路で捕々の駆1wt受け
やすい。In addition, the AH signal due to the chip cutting edge is easily affected by a sudden attack on the transmission path until it is sensed by the AH sensor/cer.
Allr号はチップ刃先で発生すると、工具内部、工具
、チップホルダー界面、ホルダー内部を伝わつてAE*
7t−で受信される。この場合、工具、チップホルダー
界面は工具交換、切削加工に伴なうIIIA械振動によ
シ、常に安定した一定の状廊に保たれない。このためム
E信号は、この工具、チップホルダー界面で着しく減衰
されやすいため一定して受信されKくい。When Allr occurs at the cutting edge of the chip, it is transmitted through the inside of the tool, the interface between the tool and the chip holder, and the inside of the holder, resulting in AE*.
Received at 7t-. In this case, the interface between the tool and the chip holder cannot always be kept in a stable constant state due to IIIA mechanical vibrations accompanying tool exchange and cutting. Therefore, the muE signal is likely to be severely attenuated at the interface between the tool and the tip holder, so it is difficult to receive it constantly.
この発明はAHセンナ−を被剛材側に設置することによ
って、これらの問題を解決したものである。This invention solves these problems by installing an AH sensor on the side of the rigid material.
即ち、切削屑のはとんどは駆動側の工具刃先にあ九る九
め、被削材儒KIA生する切削屑ノイズは微少であpl
これらO微少ノイズtiAE#知回路のバンドパスフィ
ルターで容易に除去することがで自る0そしてムE七ン
ナーを娼定台内に設置するととkよって工具交換時の接
触tFvjJの変化を受けず、またA音信号を小皺無線
器で発信し、離れ九とζろの受信器で受信するので装置
そのものの機械的振動中堆扱上O)ツプルによる変化な
どに全く影響を受けることなく安定してAK傷信号抽出
することができ、検出感度も著しく向上させることがで
きるのである。In other words, most of the cutting debris is on the cutting edge of the tool on the driving side, and the cutting debris noise generated by the workpiece material is very small.
These small noises can be easily removed by the bandpass filter of the tiAE# knowledge circuit.If the 7-ner is installed in the cutting table, it will not be affected by the change in contact tFvjJ when changing the tool. In addition, since the A sound signal is transmitted by the small wrinkle radio and received by the receivers located at the distance 9 and ζ, it is stable and is not affected by changes due to tupple during mechanical vibration of the device itself. Therefore, the AK flaw signal can be extracted using the same method, and the detection sensitivity can be significantly improved.
さらに被剛材から工具刃先が廟れてから欠損信号が発生
する可能性は少なく、かりKそのような一合でも次に被
剛材に接した時に欠損しやすい状態にあり、このような
状1のIIは、殆んどAHH損信号を発生しているので
実用上何ら支障になるものではな−0
第6図は断続テストでの工具刃先の損傷t−AE信号と
して従来の方法で絢定した一合の波形管示し、xi図は
この発明の方法で絢定した場合の技形を示し良鳴のであ
る。Furthermore, there is little possibility that a chipping signal will be generated after the cutting edge of the tool breaks away from the rigid material, and even in such a situation, the tool is likely to chip the next time it comes into contact with the rigid material. II of 1 mostly generates AHH loss signals, so there is no problem in practical use. Figure 6 shows the damage t-AE signal of the tool cutting edge in the intermittent test, which was detected using the conventional method. Figure xi shows a waveform tube with a fixed waveform, and shows a good result when the method of the present invention is used.
即ち、被醜材に工具刃先が当った直故に弱いムE−号(
エンゲージ)Sが発生し、該工具刃先が被剛材から逃げ
た直lkK再び−いAE4M号(ダイスエンゲージ)S
′が発生する。In other words, the tool No. E-(
AE4M (Die Engage) S occurs and the tool tip escapes from the rigid material.
' occurs.
しかしながら第5図の従来法のAHH号波形で扛、この
エンゲージS1デイスエンゲージS′の間に切削屑によ
るノイズNと破損信号Hが受信され、損傷がいつ生じた
のか明確に区別できないが、この発明の方法によれd1
破損信号Hのみを取出せるのでh光損傷を容易に知るこ
とができるのである。エンゲージS1デイスエンゲージ
S′は破損によるムE伽号に比較して小さいので区別が
可能である。However, in the AHH waveform of the conventional method shown in Fig. 5, noise N due to cutting debris and damage signal H are received between engagement S1 and engagement S', and it is not possible to clearly distinguish when the damage occurred. Depending on the method of invention d1
Since only the damage signal H can be extracted, it is possible to easily detect h-light damage. Engagement S1, engagement S', and engagement S' are smaller than those caused by damage, so they can be distinguished.
上記のようKこの発明の方法によれば、工具刃先の樟々
の損傷を他からのノイズの影響を受けることなく高精度
で判定でき、従って無人工作機械の運転も精度よく行う
ことができるのであって、その夾用的価aFi非常に大
である。As described above, according to the method of the present invention, damage to the camphor on the cutting edge of a tool can be determined with high precision without being affected by noise from other sources, and therefore, unmanned machine tools can be operated with high precision. Therefore, its excipient value aFi is very large.
第1図はこの発明の方法の一実施例を示すものであって
AEセンナ−発信セットを同定金円に設置したフライス
盤の側面図、第2図は第1図の72イス皺のX方向から
みえ断面図、第8図はAHセンナ−発信セット中の構成
を示す模式図、第4図はフライス盤より離れ九位置にセ
ットした受信器、警報器勢の配列を示す模式図、第す図
Fi従来のAH信信号検出圧おけるAHH号波形を示す
グラフ、第6図はこの発明の方法によるム傷信号妓形を
示すグラフである。
A・・・フライス盤、 l・・・固定台、 2・・
W削材、8・・・AHセンサー発信セット、 4・・
・チップ、5・・・カッター、 6・・・主軸、7・
・・アタッチメント、 8・・・AH−にンサー、9
・・・増幅器、 10・・・電源、11・・・小型魚
II!発信器、 12・・・無IIM父1b器、18
・・・増幅アンプ、 14・・・信号出力アンプ、1
5・・・費報器。
特許出願人 住友電気工業株式会社同
代理人 弁理士和1) 昭25
第1図
第2図
第8図
第6図
第6@Fig. 1 shows an embodiment of the method of the present invention, and is a side view of a milling machine in which an AE sensor transmitter set is installed on a metal circle. Fig. 8 is a schematic diagram showing the configuration of the AH sensor transmission set, Fig. 4 is a schematic diagram showing the arrangement of the receiver and alarm equipment set at nine positions away from the milling machine, and Fig. Fi FIG. 6 is a graph showing the AHH signal waveform at the conventional AH signal detection pressure. FIG. A...Milling machine, l...Fixed stand, 2...
W cutting material, 8...AH sensor transmission set, 4...
・Chip, 5...Cutter, 6...Spindle, 7.
...Attachment, 8...AH-Ni-cer, 9
...Amplifier, 10...Power supply, 11...Small fish II! Transmitter, 12... No IIM father 1b device, 18
...Amplification amplifier, 14...Signal output amplifier, 1
5... Expense report device. Patent applicant: Sumitomo Electric Industries, Ltd.
Agent: Patent Attorney Kazu 1) 1952 Figure 1 Figure 2 Figure 8 Figure 6 Figure 6 @
Claims (1)
傷によって生ずるアコースティックエミン7ミン値号の
検出方法において、被加工物*m定する固定台内にアコ
ースティックエミツ7Bノセンサー、増暢器、小湯無l
I!発信器咎を設置し、これよ)離れた位flK前記ア
コーステレクエミッション儒号を受信する受信器を設置
するとともに受f11された前記信号を増幅し、出力信
号となして一報器にてIl@奮発するようkすることt
−特徴ととする工具刃先損傷の検出方法。In a method for detecting an acoustic Emin 7B value number caused by Kmlml light damage during milling of a workpiece with a cutting tool, an acoustic Emin 7B sensor, an amplifier, No small bath
I! A transmitter is installed, and a receiver is installed at a distance to receive the acoustic telephony signal, and the received signal is amplified and sent as an output signal to the transmitter. Do something to inspire yourself
-Featured tool edge damage detection method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13576681A JPS5840246A (en) | 1981-08-29 | 1981-08-29 | Method for detecting cutter tip damage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13576681A JPS5840246A (en) | 1981-08-29 | 1981-08-29 | Method for detecting cutter tip damage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5840246A true JPS5840246A (en) | 1983-03-09 |
Family
ID=15159358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13576681A Pending JPS5840246A (en) | 1981-08-29 | 1981-08-29 | Method for detecting cutter tip damage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5840246A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61134662A (en) * | 1984-12-05 | 1986-06-21 | Omron Tateisi Electronics Co | Tool failure detector |
WO2005077598A1 (en) * | 2004-02-17 | 2005-08-25 | Bosch Corporation | Detection signal transmitting apparatus |
-
1981
- 1981-08-29 JP JP13576681A patent/JPS5840246A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61134662A (en) * | 1984-12-05 | 1986-06-21 | Omron Tateisi Electronics Co | Tool failure detector |
WO2005077598A1 (en) * | 2004-02-17 | 2005-08-25 | Bosch Corporation | Detection signal transmitting apparatus |
KR100809217B1 (en) | 2004-02-17 | 2008-03-03 | 봇슈 가부시키가이샤 | Detection signal transmitting apparatus |
US7769483B2 (en) | 2004-02-17 | 2010-08-03 | Bosch Corporation | Detection-signal transmitting apparatus |
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