JPS618226A - Electric discharge machine - Google Patents
Electric discharge machineInfo
- Publication number
- JPS618226A JPS618226A JP12907884A JP12907884A JPS618226A JP S618226 A JPS618226 A JP S618226A JP 12907884 A JP12907884 A JP 12907884A JP 12907884 A JP12907884 A JP 12907884A JP S618226 A JPS618226 A JP S618226A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- wire electrode
- machining
- working
- electric discharge
- 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
- B23H7/02—Wire-cutting
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〕
本発明は、Ｘ軸方向及びＸ軸方向に進退動するＸ−Ｙク
ロステーブル上に被加工物を載置し、該被加工物に２軸
方向に移動するワイヤ電極を直交させ、前記被加工物と
ワイヤ電極間に電圧を印加して、両者間に放電を発生さ
せながら、両者を相対的に移動させ、前記ワイヤ電極を
指定された加工経、路に沿って進行させて前記被加工物
を所望の形状に放電切断加工するワイヤ放電加工装置に
関するものでるる。Detailed Description of the Invention [Technical Field of the Invention] The present invention involves placing a workpiece on an X-Y cross table that moves forward and backward in the X-axis direction and in the X-axis direction. The wire electrodes moving in the direction are orthogonal to each other, and a voltage is applied between the workpiece and the wire electrode to generate an electric discharge between the two while relatively moving the wire electrode to perform the specified processing. The present invention relates to a wire electrical discharge machining apparatus that advances the workpiece along a warp and a path to perform electrical discharge cutting on the workpiece into a desired shape.
ワイヤ放電加工装置は、第４図に示されているように、
Ｘ軸テーブル１０の上にはＹ軸テーブル１６が移動自在
に載っている。Ｘ軸テーブル１゜は蝶合された送りねじ
軸１２がモータ１４で駆動されることにより％Ｙ軸テー
ブル１６を載置したままＸ軸方向に進退移動するように
なっている。The wire electrical discharge machining device, as shown in Fig. 4,
A Y-axis table 16 is movably mounted on the X-axis table 10. The X-axis table 1° is configured to move forward and backward in the X-axis direction with the %Y-axis table 16 placed thereon by driving a hinged feed screw shaft 12 by a motor 14.
Ｙ軸テーブル１６は蝶合された送りねじ軸１８がモータ
２０で駆動されることにより、Ｘ軸テーブル１０には無
関係にＸ軸方向に進退移動するようになっている。被加
工物２２はＹ軸テーブル１６の上に載置されている。ワ
イヤ電極２６は被加工物２２に直交してＺ軸方向に移動
するようになっている。被加工物２２とワイヤ電極２６
との間には電源装置（図示省略する）により電圧が印加
され、両者間に放電が発生している。加工液は電磁弁４
８を通って加工液噴出ノズル２４より噴射され、放電を
発生する場合に必要な放電エネルギの抑制、ワイヤ電極
の冷却、スラッジの排除などをなしている。制御装置２
８からの指令によりモータ１４．２０が制御されること
によつＥＸ軸テーブルとＹ軸テーブルとがそれぞれＸ軸
方向、Ｘ軸方向に進退し、この両テーブルの合成移動に
よりワイヤ電極２６が所望の加工経路３０に沿って移動
するようになっている。The Y-axis table 16 is configured to move forward and backward in the X-axis direction independently of the X-axis table 10 by driving a hinged feed screw shaft 18 by a motor 20. The workpiece 22 is placed on the Y-axis table 16. The wire electrode 26 is configured to move in the Z-axis direction orthogonal to the workpiece 22. Workpiece 22 and wire electrode 26
A voltage is applied between the two by a power supply device (not shown), and a discharge occurs between the two. Processing fluid is solenoid valve 4
8 and is injected from the machining fluid jetting nozzle 24, which suppresses the discharge energy necessary to generate electric discharge, cools the wire electrode, and eliminates sludge. Control device 2
By controlling the motors 14 and 20 by commands from 8, the EX-axis table and the Y-axis table move forward and backward in the X-axis direction and the X-axis direction, respectively, and the wire electrode 26 is moved as desired by the combined movement of both tables. It is configured to move along a machining path 30 .
第５図は前記第４図のワイヤ放電加工装置に用いられて
いる従来の制御装置２８の構成を示しており、制御装置
２８はテープリーダなどの人力部６２と、該人力部３２
からの信号によって指定された加工経路に基づいて演算
制御を行う演算制御部６４と該演算制御部３４での演算
結果をＸ軸モータ１４、Ｙ軸モータ２０へ出力する駆動
出力部ろ６と、操作員との情報交換をするだめの操作部
３４と、表示部４０とからなっている。FIG. 5 shows the configuration of a conventional control device 28 used in the wire electrical discharge machining apparatus shown in FIG.
an arithmetic control unit 64 that performs arithmetic control based on a machining path specified by a signal from the arithmetic control unit 34; a drive output unit 6 that outputs the calculation results of the arithmetic control unit 34 to the X-axis motor 14 and the Y-axis motor 20; It consists of an operating section 34 for exchanging information with an operator, and a display section 40.
ところが、従来の制御装置２８には被加工物２２とワイ
ヤ電極２６との間に常時噴射する加工液の噴出量を調整
するものがなかったために、被加工物２２の端面から加
工を開始する場合には、第６図に示すように、加工液が
被加工物２２の端面において飛散し、効率よく加工液を
被加工物２２とワイヤ電極２６との間に供給することが
できず、放電エネルギの抑制、ワイヤ電極の冷却作用及
びスラッジの排除などが困難になシ、その結果ワイヤ電
極の溶解を引き起こしてワイヤ断線すなわち加工続行が
不可能になるなどの欠点がめった。However, since the conventional control device 28 does not have a device that adjusts the amount of machining fluid that is constantly injected between the workpiece 22 and the wire electrode 26, it is difficult to start machining from the end face of the workpiece 22. In this case, as shown in FIG. 6, the machining fluid scatters on the end face of the workpiece 22, making it impossible to efficiently supply the machining fluid between the workpiece 22 and the wire electrode 26, and reducing the discharge energy. However, it is difficult to control the temperature, cool the wire electrode, and remove sludge, and as a result, the wire electrode often melts, resulting in wire breakage, which makes it impossible to continue processing.
本発明は前記のような従来のもののもつ欠点を排除して
、被加工物の端面より加工を開始する場合、加工液を被
加工物とワイヤ電極との間に有効に供給して、放電の発
生を円滑にし、ワイヤ電極の断線を防止するワイヤ放電
加工装置を提供することを目的とするものでろる。The present invention eliminates the drawbacks of the conventional methods as described above, and when machining is started from the end face of the workpiece, machining fluid is effectively supplied between the workpiece and the wire electrode to prevent electrical discharge. The purpose of this invention is to provide a wire electrical discharge machining apparatus that smoothly generates electrical discharge and prevents wire electrode breakage.
即ち、本発明は、Ｘ軸方向及びＸ軸方向に進退動するＸ
−Ｙクロステーブル上に被加工物を載置し、該加工物に
２軸方向に移動するワイヤ電極を直交させ、前記被加工
物とワイヤ電極間に電圧を印加して、両者間に放電を発
生させながら、両者を相対的に移動でせ、前記ワイヤ電
極を指定された加工経路に浴って進行させて前記被加工
物を所望の形状に放電側・チ加工するワイヤ放電加工装
置において、被加工物とワイヤ電極間の放電を容易に行
なうために、両者間に常時噴出する加工液の噴出量を、
被加工物の端面から加工を開始する場合にのみ小量にす
る加工液供給量制御部を備えたことを特徴とするワイヤ
放電加工装置である。That is, the present invention provides an X-axis that moves forward and backward in the X-axis direction and
- A workpiece is placed on a Y cross table, a wire electrode moving in two axes is perpendicular to the workpiece, and a voltage is applied between the workpiece and the wire electrode to generate an electric discharge between them. In a wire electric discharge machining apparatus, the wire electrode is moved relative to each other while generating electric discharge, and the wire electrode is advanced along a specified machining path to machine the workpiece into a desired shape on the electric discharge side. In order to facilitate electrical discharge between the workpiece and the wire electrode, the amount of machining fluid constantly spouted between the two is
A wire electric discharge machining apparatus is characterized in that it is equipped with a machining fluid supply amount control section that reduces the amount of machining fluid supplied only when machining is started from the end face of a workpiece.
以下、本発明の実施例を図面に基づいて説明する。第１
図は本発明のワイヤ放電加工装置を示しており、第２図
は本発明のワイヤ放電加工装置に適用する制御装置２８
を示しており、制御装置２８はテープリーダなどの入力
部３２と％該入力部３２からの信号によって指定された
加工経路に基づいて演算制御を行う演算制御部３４と、
該演算制御部６４での演算結果をＸ軸モータ１４．Ｙ軸
モータ２０へ出力する駆動出力部３６と、操作員との情
報交換をするだめの操作部３４と、表示部４０と、前記
演算制御８１Ｓ３４からの信号によって電磁弁４８を制
御する加工液供給量制御部４４とからなっている。Embodiments of the present invention will be described below based on the drawings. 1st
The figure shows a wire electric discharge machining apparatus of the present invention, and FIG. 2 shows a control device 28 applied to the wire electric discharge machining apparatus of the present invention.
The control device 28 includes an input section 32 such as a tape reader, and an arithmetic control section 34 that performs arithmetic control based on a processing path specified by a signal from the input section 32.
The calculation results from the calculation control section 64 are transferred to the X-axis motor 14. A drive output unit 36 that outputs to the Y-axis motor 20, an operation unit 34 that exchanges information with the operator, a display unit 40, and a machining fluid supply that controls the solenoid valve 48 based on the signal from the arithmetic control 81S34. It consists of a quantity control section 44.
なお第１図に示す符号のうち、第４図と同じものは同−
又は相当部分につき説明を省略する。Of the symbols shown in Figure 1, the same ones as in Figure 4 are the same.
Or omit the explanation for the corresponding part.
次に、動作について説明する。Next, the operation will be explained.
テープリーダなどの入力部３２より指令が出されると、
この指令は演算制御部６４に伝達でれる。When a command is issued from the input unit 32 such as a tape reader,
This command is transmitted to the calculation control section 64.
演算制御部６４での演算結果は駆動出力部３６と、加工
液供給量制御部４４とに伝達される。駆動出力部３６で
はＸ軸モータ１４、Ｙ軸モータ２０の制御を行い、加工
液供給量制御部４４では電磁弁４日の制御を行っている
。電磁弁４８の制御はワイヤ電極２６が被加工物２２に
接触したときにワイヤ電極２６と被加工物２２との間に
加えた電圧が下がり、ワイヤ電極２６が被加工物２２の
端面でめることを演算制御部３４から加工液供給量制御
部４４に指令を出したときになされる。電磁弁４８の制
御により加工液噴出ノズル２４から噴出する加工液が少
なくなシ、第３図に示すように加工液が飛散しなくなる
。加工液が飛散しなくなることにより、放電の発生が円
滑になり、ワイヤ電極の断線が防止できるようになる。The calculation result in the calculation control section 64 is transmitted to the drive output section 36 and the machining fluid supply amount control section 44. The drive output section 36 controls the X-axis motor 14 and the Y-axis motor 20, and the machining fluid supply amount control section 44 controls the solenoid valve 4. The control of the solenoid valve 48 is such that when the wire electrode 26 contacts the workpiece 22, the voltage applied between the wire electrode 26 and the workpiece 22 decreases, and the wire electrode 26 closes at the end surface of the workpiece 22. This is done when the calculation control section 34 issues a command to the machining fluid supply amount control section 44. By controlling the electromagnetic valve 48, the amount of machining fluid ejected from the machining fluid jetting nozzle 24 is reduced, and the machining fluid no longer scatters as shown in FIG. By preventing the machining fluid from scattering, discharge can occur smoothly and breakage of the wire electrode can be prevented.
なお、前記実施例では被加工物の端面において加工液が
飛散することを考慮して、電磁弁４８により加工液噴出
骨を少量にして、放電エネルギの抑制、ワイヤ電極の冷
却、スラッジの排除などをしているが、ワイヤ電極が加
工開始位置を検出後、一定距離に到達したことを演算制
御部３４の演算結果より加工液供給量制御部４４に出力
し、加工液噴出量が多くなるように電磁弁４８を制御す
ると、被加工物の加工中においても、放電を円滑に発生
することができ、ワイヤ電極の断線を防止することがで
きるようになる。In the above embodiment, in consideration of the fact that the machining fluid is scattered at the end surface of the workpiece, the solenoid valve 48 is used to reduce the amount of machining fluid ejected to suppress discharge energy, cool the wire electrode, eliminate sludge, etc. However, after the wire electrode detects the machining start position, the fact that the wire electrode has reached a certain distance is outputted to the machining fluid supply amount control section 44 based on the calculation result of the calculation control section 34, so that the machining fluid jetting amount is increased. By controlling the electromagnetic valve 48 in this manner, electric discharge can be smoothly generated even during machining of a workpiece, and breakage of the wire electrode can be prevented.
本発明は、前記のように被加工物とワイヤ電極（１７Ｘ
間の放電を容易に行うために、両者間に常時噴射する加
工液の噴出量を、被加工物の端面から加工を開始する場
合にのみ少量にする加工液供給量制御部４４を備えてい
るから、放電の発生を円滑にし、ワイヤ電極の断線を防
止しつる効果を有している。In order to facilitate electrical discharge between the workpiece and the wire electrode (17 Since the machining fluid supply amount control unit 44 is provided to control the amount of machining fluid supplied only in a small amount, it has the effect of smoothing the generation of electric discharge and preventing disconnection of the wire electrode.
第１図は本発明の実施例のワイヤ放電加工装置を示す説
明図、第２図は第１図の制御装置の構成を示すブロック
図、第６図は第１図の加工液噴出ノズルから噴出する加
工液の状態を示す説明図でるる。第４図は従来のワイヤ
放電加工装置を示す説明図、第５図は第４図の制御装置
の構成を示すブロック図、第６図は第４図の加工液噴出
ノズルから噴出する加工液の状態を示す説明図である。
１０・・・Ｘ軸テーブル、１６・・・Ｙ軸テーブル、２
２・・・被加工物、２６・・・ワイヤ電極、２Ｂ・・・
制御装置、６２・・・入力部、３４・・・演算制御部。
３６・・・駆動出力部、４４・・・加工液供給量制御部
。
図中、同一符号は同−又は相当部分を示す。
代理人 弁理士 木 村 三 朗
第１ｆ！１
第２図
第３図
第５図
３８ ４゜
第６ｔ！ｆFIG. 1 is an explanatory diagram showing a wire electrical discharge machining apparatus according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the control device shown in FIG. 1, and FIG. This is an explanatory diagram showing the state of the machining fluid. FIG. 4 is an explanatory diagram showing a conventional wire electrical discharge machining device, FIG. 5 is a block diagram showing the configuration of the control device shown in FIG. 4, and FIG. It is an explanatory diagram showing a state. 10...X-axis table, 16...Y-axis table, 2
2... Workpiece, 26... Wire electrode, 2B...
Control device, 62... input section, 34... arithmetic control section. 36... Drive output unit, 44... Machining fluid supply amount control unit. In the figures, the same reference numerals indicate the same or corresponding parts. Agent Patent Attorney Sanro Kimura 1st F! 1 Figure 2 Figure 3 Figure 5 Figure 38 4゜6th t! f
Claims (1)
ル上に被加工物を載置し、該被加工物にＺ軸方向に移動
するワイヤ電極を直交させ、前記被加工物とワイヤ電極
間に電圧を印加して両者間に放電を発生させながら、両
者を相対的に移動させ、前記ワイヤ電極を指定された加
工経路に沿つて進行させて前記被加工物を所望の形状に
放電切断加工するワイヤ放電加工装置において、 被加工物とワイヤ電極間の放電を容易に行うために、両
者間に常時噴射する加工液の噴出量を、被加工物の端面
から加工を開始する場合にのみ少量にする加工液供給量
制御部を備えたことを特徴とするワイヤ放電加工装置。[Claims] A workpiece is placed on an X/Y cross table that moves forward and backward in the X-axis direction and the Y-axis direction, and a wire electrode that moves in the Z-axis direction is orthogonal to the workpiece, and the A voltage is applied between the workpiece and the wire electrode to generate an electric discharge between the two, and the wire electrode is moved along a specified machining path to move the workpiece. In wire electrical discharge machining equipment that performs electrical discharge cutting into a desired shape, in order to facilitate electrical discharge between the workpiece and the wire electrode, the amount of machining fluid that is constantly injected between the two is adjusted from the end face of the workpiece. A wire electrical discharge machining device characterized by comprising a machining fluid supply amount control section that reduces the amount of machining fluid supplied only when starting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12907884A JPS618226A (en) | 1984-06-25 | 1984-06-25 | Electric discharge machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12907884A JPS618226A (en) | 1984-06-25 | 1984-06-25 | Electric discharge machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS618226A true JPS618226A (en) | 1986-01-14 |
Family
ID=15000528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12907884A Pending JPS618226A (en) | 1984-06-25 | 1984-06-25 | Electric discharge machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS618226A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990006202A1 (en) * | 1988-12-10 | 1990-06-14 | Fanuc Ltd | Working liquid feeding apparatus for wire cut electric discharge machine |
-
1984
- 1984-06-25 JP JP12907884A patent/JPS618226A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990006202A1 (en) * | 1988-12-10 | 1990-06-14 | Fanuc Ltd | Working liquid feeding apparatus for wire cut electric discharge machine |
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