JPS60108229A - Electric-discharge machining device - Google Patents
Electric-discharge machining deviceInfo
- Publication number
- JPS60108229A JPS60108229A JP21498683A JP21498683A JPS60108229A JP S60108229 A JPS60108229 A JP S60108229A JP 21498683 A JP21498683 A JP 21498683A JP 21498683 A JP21498683 A JP 21498683A JP S60108229 A JPS60108229 A JP S60108229A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- discharge machining
- electrode
- touch probe
- contact
- 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
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/26—Apparatus for moving or positioning electrode relatively to workpiece; Mounting of electrode
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H2500/00—Holding and positioning of tool electrodes
- B23H2500/20—Methods or devices for detecting wire or workpiece position
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
この発明は放電加工装置に関う゛るものであり、電極の
位置決めケ容易にしたものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an electrical discharge machining apparatus, and facilitates the positioning of electrodes.
従来、この種の放電加工装置として、第1図に示すもの
が知られている。図において、符号1は加工液(図示せ
ず)を溜めてその内部で放電加工を行う加工槽、2は電
極、6は該電極の加工送りケ行う主相であり、Z軸モー
タ4により駆動される。5は被加工物、6td上記加工
槽2および被゛加工物5が取り付けられたテーブルでめ
り、X軸上−タ7によりX方向に移動可能に構成されて
いる。Conventionally, as this type of electric discharge machining apparatus, the one shown in FIG. 1 is known. In the figure, reference numeral 1 is a machining tank that stores machining fluid (not shown) and performs electrical discharge machining inside the tank, 2 is an electrode, and 6 is a main phase that performs machining and feeding of the electrode, which is driven by a Z-axis motor 4. be done. Reference numeral 5 denotes a workpiece, and 6td is configured to be movable in the X direction by a table on which the processing tank 2 and the workpiece 5 are attached, and by an X-axis machine 7.
8はサドルであり、上記テーブル6を支持し、Y軸モー
タ9によりY方向に移動可能に構成されている。10は
上記主軸をガイドし支持するヘッド、11は該ヘッド?
支持するコラムであり、ペッド12上に設置されている
。16はNC制御装置であり、ケーブル14a、14b
により上記主軸6およびテーブル6と接続されている
。A saddle 8 supports the table 6 and is movable in the Y direction by a Y-axis motor 9. 10 is a head that guides and supports the main shaft, and 11 is the head.
It is a supporting column and is installed on the ped 12. 16 is an NC control device, and cables 14a, 14b
It is connected to the main shaft 6 and table 6 by.
上記のように構成された放電加工装置では、被加工物5
の基準面から所定の位置に電極2を位置決めする場合に
、まず電極2と被加工物5との間にNC制岬穀装13か
ら10数ボルトの直流電圧を印加し、被加工物5の基準
面と′電極2とが接触する方向に被加工物5’kX軸モ
ータ7、Y軸モータ9により微動送りしながら両者を・
接触させる。In the electrical discharge machining apparatus configured as described above, the workpiece 5
When positioning the electrode 2 at a predetermined position from the reference plane of the workpiece 5, first, a DC voltage of more than 10 volts is applied from the NC control cape 13 between the electrode 2 and the workpiece 5. The workpiece 5' is moved in the direction in which the reference surface and the electrode 2 come in contact with each other while being slightly moved by the X-axis motor 7 and the Y-axis motor 9.
bring into contact.
このとき、電極2と被加工物5とは短絡状態となって印
加電圧は零になり、Nc制御装置16上に接触の表示が
点灯され、そのときの被加工物5の位置が記録される。At this time, the electrode 2 and the workpiece 5 are short-circuited and the applied voltage becomes zero, a contact display is lit on the Nc control device 16, and the position of the workpiece 5 at that time is recorded. .
次に、電極2および被加工物5の接触状態をx、y、z
の各軸モータ7.9゜4により開放し、前記接触位置よ
り所定の位置に、被加工物5と電極2とが対向する方向
に被加工物5をX、 Y軸方向に移動し、位置決め操作
を完了する。Next, the contact state between the electrode 2 and the workpiece 5 is determined by x, y, z.
The workpiece 5 is moved in the X and Y axis directions from the contact position to a predetermined position in the direction in which the workpiece 5 and the electrode 2 face each other, and positioning is performed. Complete the operation.
このように、上記した従来の放電加工装置では、被加工
物5と電極2との間に電圧を印加し、その電圧が零にな
った状態において、はじめて接触状態であることを検知
し、これにより位置決めを行うようにするので1次のよ
うな欠点があった。In this way, in the conventional electric discharge machining apparatus described above, a voltage is applied between the workpiece 5 and the electrode 2, and the contact state is detected only when the voltage becomes zero. Since the positioning is performed by the following method, there is a drawback of the first order.
(1)電極または被加工物の接触面の仕上げ状態により
、接触時に2いても充分な電流の導通、即ち印加電圧が
零にならず、そのため印加電圧が零になるまで被加工物
を電極に押し付け、この結果f[極に圧痕等が生じ、加
工形状および精度が損なわれる。(1) Depending on the finishing condition of the contact surface of the electrode or workpiece, sufficient current conduction may occur even when contact is made, that is, the applied voltage may not reach zero; therefore, the workpiece may not be connected to the electrode until the applied voltage becomes zero. As a result, indentation etc. occur on the f [pole, which impairs the machined shape and accuracy.
(2)電極と被加工物とが接触する直前に、印加電圧の
ために両者間に微少放電が発生し1両者の接触面に放゛
蹴痕が生じ1m工形状および精度が損なわれる。(2) Immediately before the electrode and the workpiece come into contact, a minute electrical discharge occurs between them due to the applied voltage, and a kick mark is created on the contact surface between the two, impairing the 1m machining shape and accuracy.
(3)上記2点により、笑顔の電極と被加工物との接触
位置の検出精度が劣化し、数μm程度の誤差を生ずる。(3) Due to the above two points, the detection accuracy of the contact position between the smiling electrode and the workpiece is degraded, resulting in an error of about several μm.
このう4明は上記した従来のものの欠点を除去するもの
で、電極と被加工物とが対向する極間に加工液を介在さ
せ、上記の電極と被加工物間に絶縁破壊′電圧以上の加
工電圧を印加して、上記電極間に放電−+a生させ、こ
の放電エネルギーにより放電加工を行う放電加工装置に
おいて、被加工物の任慈の点から所定の位置への電極の
位置決め、被加工物の寸法、111j定または成極寸法
測定のために、被加工物と恒]ボ子が接触した瞬間Vこ
接触信号奮発するタッチプローブ會具備し、電極と被加
工物との間の印加電圧によって惹起される位置決め精反
の劣化を防止し、精度を向上させるようにした放電加工
装置を提供するものである。This fourth method eliminates the drawbacks of the conventional method described above, and involves interposing a machining fluid between the opposing electrodes and the workpiece, so that the voltage between the electrode and the workpiece is higher than the dielectric breakdown voltage. In an electric discharge machining device that applies a machining voltage to generate a discharge -+a between the electrodes and performs discharge machining using this discharge energy, it is possible to position the electrode to a predetermined position from the arbitrary point of the workpiece, and to machine the workpiece. In order to measure the dimensions, fixed or polarized dimensions of an object, a touch probe device is equipped that generates a contact signal the moment the workpiece and the constant button come into contact, and the voltage applied between the electrode and the workpiece is The present invention provides an electric discharge machining device that prevents deterioration of the positioning fine line caused by the above and improves accuracy.
以下、この発明の一実施例を図について説明する。gI
J2図において、第1図と同一符号は同一または相当部
分を示す、符号15は先端に測定子16が設置されてい
るタッチプローブであり、前記した主軸6に取り付けら
れているホルダ17によって保持されており、信号ケー
ブル19a、19bによりコントロ〒う18を介してN
Cflll1#装置13に接続されている。An embodiment of the present invention will be described below with reference to the drawings. gI
In Fig. J2, the same reference numerals as in Fig. 1 indicate the same or corresponding parts. Reference numeral 15 is a touch probe with a probe 16 installed at its tip, which is held by a holder 17 attached to the main shaft 6 described above. The signal cables 19a and 19b control the N
Connected to Cflll1# device 13.
上記の測定子16に前記した被加工物5が接触すると、
該測定子はわずかに傾き、その傾き全タッチプローブ1
5に内蔵されている差動トランス(図示せず)が検知し
、電圧信号としてコントローラ18に送る。このコント
ローラ18はその信号をアナログ信号に変換してNC制
御装置13に送り、該NC制御装置ではそのときの被加
工物5の位置を記憶すると共に、被加工物5の移動全瞬
時に停止させる。When the workpiece 5 mentioned above comes into contact with the measuring element 16,
The contact point is slightly tilted, and the tilt of the entire touch probe 1
A differential transformer (not shown) built in 5 detects the voltage and sends it to the controller 18 as a voltage signal. This controller 18 converts the signal into an analog signal and sends it to the NC control device 13, where the NC control device stores the position of the workpiece 5 at that time and stops the movement of the workpiece 5 instantaneously. .
タッチプローブ15は測定子16端に僅か数10グラム
の力が作用するだけで接触信号を発振でき。The touch probe 15 can generate a contact signal when only a few tens of grams of force is applied to the end of the probe 16.
かりx、y、z各方向K 10 mm稈にのストローク
を有しているため、接触による変形ま7ンは損傷は皆無
であり、被加工物5の接触送り速度を100mm /
s e c以下に設定しfc:JP!件下では、被〃ロ
エ物5の基準面の仕上状態に何等影響されることなく、
位置決めの繰り返し精度が1μm以下という好結果が得
られている。Since the lever has a stroke of 10 mm in each of the x, y, and z directions, there is no deformation or damage due to contact, and the contact feed rate of the workpiece 5 is reduced to 100 mm/
Set below s e c and fc:JP! Under the conditions, without being influenced in any way by the finishing condition of the reference surface of the object 5,
Good results have been obtained in which the repeatability of positioning is 1 μm or less.
尚、測定子16の僅かな傾きによる位置ズン量は5μ情
以下で、x、y、z各接触方向に関係なく、三方向とも
一定量を示すので、予めブロックゲージ等の基準長さが
既知のものを測定することによりその位置ズレ量全把握
し、その数値全NC制御装置16に入力し、測定データ
全自動的に補正することが可能であるため、測定精度も
繰り返し精度と同様に1μm以下とすることができる。The amount of positional deviation due to a slight inclination of the probe 16 is less than 5μ, and it shows a constant amount in all three directions regardless of the x, y, and z contact directions, so if the reference length of the block gauge etc. is known in advance. By measuring the object, it is possible to grasp the entire amount of positional deviation, input the numerical value to the full NC control device 16, and automatically correct the measured data, so the measurement accuracy is 1 μm as well as the repeatability. It can be as follows.
次に、他の実施例について説明する。第6図はタッチグ
ローブ15a kワイヤレス構造としたものであり、主
軸6に取り付けられているクランプ装置22に装着され
ている゛状態が示されている。Next, other embodiments will be described. FIG. 6 shows a touch glove 15a having a wireless structure, and shown in a state where it is attached to a clamp device 22 attached to the main shaft 6.
この状態において、タッチプローブ15aの検出一部
15bはヘッド10に固定されている取付具20に設置
された受信部21と通常0.5〜1.5 mn程度に設
定された間隙Gf保って対向している。In this state, the detection part of the touch probe 15a
15b faces the receiving section 21 installed on the fixture 20 fixed to the head 10 with a gap Gf normally set to about 0.5 to 1.5 mm.
いま、被加工物5の端面検出操作が児了すると、タッチ
プローブ15aはヘッド10に固定されている自動電極
交換装置 23aのスイングアーム23bによりクラン
プ装置22から取り外されてマガジン23cに装着され
る。スイングアーム23bはNC制御装置16より指令
された電極2をマガジン25.から取り外し、クランプ
装置22に装着する。以降、NC制御装置16からの指
令により被加工物5は所定の位置に移動され、放電加工
がなされる。Now, when the end face detection operation of the workpiece 5 is completed, the touch probe 15a is removed from the clamp device 22 by the swing arm 23b of the automatic electrode exchange device 23a fixed to the head 10 and installed in the magazine 23c. The swing arm 23b moves the electrode 2 instructed by the NC control device 16 into the magazine 25. and attach it to the clamp device 22. Thereafter, the workpiece 5 is moved to a predetermined position according to a command from the NC control device 16, and electrical discharge machining is performed.
上記した他の実施例では、タッチプローブ本体を検出部
と受信部とに分離したので、自動電極交換装置の設置が
可能となり、位置決め操作と加工とが連続的に自動で行
うことができ、従って高精度な放電加工の自動化および
省力化が可能となる。In the other embodiments described above, since the touch probe body is separated into the detection section and the reception section, it is possible to install an automatic electrode exchange device, and the positioning operation and processing can be performed continuously and automatically. It becomes possible to automate high-precision electrical discharge machining and save labor.
尚1図中の矢印はスイングアーム2ろbおよびマガジン
23Cの動作方向を示すものである。Note that the arrows in Figure 1 indicate the operating directions of the swing arm 2 b and the magazine 23C.
また、上記−実施例および他の実施例では、この発明全
陽極の位置決めに適用した場会について説明したが、こ
れに限らず、被加工物の寸法測゛定せたは電極の寸法測
定等にも適用できることは勿論である。In addition, in the above-mentioned embodiment and other embodiments, the present invention is applied to the positioning of all anodes, but the present invention is not limited to this, and the present invention is not limited to this. Of course, it can also be applied to
この発明は上記したように、電極と被加工物とが対向す
る極間に加工液を介在させ、上記のt、極と被加工物間
に絶縁破壊電圧以上の加工電圧を印加して、上記電極間
に放電を発生させ、この放゛亀エネルギーにより放電加
工を行う放電加工装置において、被加工物の任意の点か
らn1定の位置への電極の位置決め、被加工物の寸法測
定または電極寸法測定のため圧、被加工物と測定子か接
触した瞬間に接触信号を発するタッチプローブ會具備し
たから、従来装置の欠点である、接触により圧痕および
微小放電による放電ノ良等の4・甑の損傷もなく、しか
も接触面の仕上げ程屁に影響されることなく高精度の位
置決めか可能となり1,1b果として被加工物5の加工
精度が飛躍的に向上する等の効果かえられる。As described above, this invention interposes a machining liquid between the electrodes and the workpiece, and applies a machining voltage equal to or higher than the dielectric breakdown voltage between the electrode and the workpiece at the time t mentioned above. In electrical discharge machining equipment that generates electrical discharge between electrodes and performs electrical discharge machining using the radiated energy, it is possible to position the electrode from an arbitrary point on the workpiece to a fixed position n1, measure the dimensions of the workpiece, or measure the electrode dimensions. Because we are equipped with a touch probe device that emits a contact signal the moment the workpiece and the probe come into contact with each other for pressure measurement, we are able to eliminate the drawbacks of conventional devices, such as indentations caused by contact and electrical discharge problems caused by minute discharges. There is no damage, and high precision positioning is possible without being affected by farts in the finish of the contact surface, and as a result, the processing accuracy of the workpiece 5 is dramatically improved.
第1図は従来の放電加工装置tを示す構成図、第2図は
この発明の一実施例を示す構成図、第3図は他の実施例
を示す構成図である。
2:電極、5:被加工物、13:Nc制御装置、15.
15a :タッチグローブ、15b=検出部、16:測
定子。
尚、各図中同−符月は同一または相当部分を示すものと
する。
代理人 弁理士 木 村 三 朗
第1図
第 2図
1スFIG. 1 is a block diagram showing a conventional electric discharge machining apparatus t, FIG. 2 is a block diagram showing one embodiment of the present invention, and FIG. 3 is a block diagram showing another embodiment. 2: Electrode, 5: Workpiece, 13: Nc control device, 15.
15a: Touch glove, 15b: Detection unit, 16: Measuring head. Note that the same symbols in each figure indicate the same or corresponding parts. Agent Patent Attorney Sanro Kimura Figure 1 Figure 2 Figure 1
Claims (4)
させ、上記の電極と被加工物間に絶縁破壊電圧以上の加
工電圧を印加して、上記電極間に放電を発生させ、この
放電エネルギーにより放電加工を行う放電加工装置にお
いて、被加工物の任意の点から所定の位置への電極の位
置決め、被加工物の寸法測定または電極寸法測定のため
に、被加工物と測定子が接触した瞬間に接触信号を発す
るタッチプローブを具備したことを特徴とする放電加工
装置。(1) A machining fluid is interposed between the opposing electrodes and the workpiece, and a machining voltage higher than the dielectric breakdown voltage is applied between the electrode and the workpiece to generate an electric discharge between the electrodes. In electrical discharge machining equipment that performs electrical discharge machining using this electrical discharge energy, the workpiece and the measuring device are used to position the electrode from any point on the workpiece to a predetermined position, measure the dimensions of the workpiece, or measure the electrode dimensions. An electrical discharge machining device characterized in that it is equipped with a touch probe that emits a contact signal the moment a child contacts it.
項に記載の放電加工装置。(2) Measurable directions lx, y of the touch probe. Claim 1, which is characterized in that each direction of 2.
The electric discharge machining device described in .
者間の信号伝達ラミ磁誘導によるワイヤーレス方式とし
、放電加工装置の所定位置への検出部の着脱を自動電極
交換装置により自動的に行うようにしたことを特徴とす
る特許請求の範囲第1項に記載の放電加工装置。(3) The detection part and the reception part of the touch probe are separated, and the signal transmission between the two is made wireless by laminated magnetic induction, and the detection part is automatically attached to and removed from the predetermined position of the electrical discharge machine using an automatic electrode exchange device. The electric discharge machining apparatus according to claim 1, wherein the electric discharge machining apparatus is configured to perform the electric discharge machining process.
速度を毎分1100yn以下に規制したこと全特徴とす
る特許請求の範囲第1項に記載の放電加工装置。(4) The electrical discharge machining apparatus according to claim 1, characterized in that the speed at which the contact point of the touch probe and the object to be measured come into contact is regulated to 1100 yn/min or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21498683A JPS60108229A (en) | 1983-11-17 | 1983-11-17 | Electric-discharge machining device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21498683A JPS60108229A (en) | 1983-11-17 | 1983-11-17 | Electric-discharge machining device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60108229A true JPS60108229A (en) | 1985-06-13 |
Family
ID=16664808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21498683A Pending JPS60108229A (en) | 1983-11-17 | 1983-11-17 | Electric-discharge machining device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60108229A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0319782A (en) * | 1989-06-13 | 1991-01-28 | Sanyo Electric Co Ltd | Multi-articulated robot |
EP0603526A1 (en) * | 1992-12-21 | 1994-06-29 | AG für industrielle Elektronik AGIE Losone bei Locarno | Method and apparatus for electric discharge machining |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5531567A (en) * | 1978-08-28 | 1980-03-05 | Inoue Japax Res Inc | Spark machining device |
JPS5838803A (en) * | 1981-08-31 | 1983-03-07 | Mitsutoyo Mfg Co Ltd | Touching signal probe |
-
1983
- 1983-11-17 JP JP21498683A patent/JPS60108229A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5531567A (en) * | 1978-08-28 | 1980-03-05 | Inoue Japax Res Inc | Spark machining device |
JPS5838803A (en) * | 1981-08-31 | 1983-03-07 | Mitsutoyo Mfg Co Ltd | Touching signal probe |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0319782A (en) * | 1989-06-13 | 1991-01-28 | Sanyo Electric Co Ltd | Multi-articulated robot |
EP0603526A1 (en) * | 1992-12-21 | 1994-06-29 | AG für industrielle Elektronik AGIE Losone bei Locarno | Method and apparatus for electric discharge machining |
US5444205A (en) * | 1992-12-21 | 1995-08-22 | Ag Fur Industrielle Elektronik | Method of and apparatus for electro-erosive machining |
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