JPS59152027A - Electric discharge machining equipment - Google Patents
Electric discharge machining equipmentInfo
- Publication number
- JPS59152027A JPS59152027A JP2302583A JP2302583A JPS59152027A JP S59152027 A JPS59152027 A JP S59152027A JP 2302583 A JP2302583 A JP 2302583A JP 2302583 A JP2302583 A JP 2302583A JP S59152027 A JPS59152027 A JP S59152027A
- Authority
- JP
- Japan
- Prior art keywords
- machining
- electrode
- float switch
- fluid
- liquid level
- 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
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/10—Supply or regeneration of working media
Landscapes
- 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】
この発明は、加工用電極と被加工物との間に加工液を介
して通電し、その間隙に起る放電現象によって被加工物
を加工する放電加工装置における加工液の液面制御に関
するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for applying machining fluid to an electric discharge machining device that supplies current between a machining electrode and a workpiece through a machining fluid, and processes the workpiece by a discharge phenomenon occurring in the gap between the machining electrodes and the workpiece. This relates to liquid level control.
従来この種の放電加工装置における加工液の液面制御と
しては、第１図（Ａ）及び（Ｂ）に示すものが知られて
いる。第１図（Ａ）及び（Ｂ）は従来の放電加工装置の
構成を示す斜視図及びそのＡ−Ａｉ力方向ら見た矢視図
である。上記各図に示すように、加工槽ｔの片側には切
欠き部２が設けられ、この切欠き部２をふさぐように上
下方向に移動するスライド板３が設けられ、このスライ
ド板３にはフロートスイッチグが取り付けられている。BACKGROUND ART Conventionally, as a method of controlling the level of machining fluid in this type of electric discharge machining apparatus, the method shown in FIGS. 1(A) and 1(B) is known. FIGS. 1A and 1B are a perspective view showing the configuration of a conventional electric discharge machining apparatus and a view taken along the arrow direction as viewed from the A-Ai force direction. As shown in each of the above figures, a notch 2 is provided on one side of the processing tank t, and a slide plate 3 that moves vertically so as to close this notch 2 is provided. Float switching is installed.
加工液を加工槽ｔに供給する装置としては、加工液タン
クｊ及びポンダ（Ｐ）乙とから構成され、モータＭにて
作動されるボンダＣＰ）≦により加圧された加工液は、
電磁弁／ｊを介して加工槽ｌの加工液供給部ｉｇに給送
されるとともに、常時噴出ノズル７及び被加工物に直接
噴射する噴射ノズルにに供給される。加工液を排出する
装置としては、排出パルブタがあり、この排出バルプヮ
には、これを動作させるエアシリンダ１０が取り付けら
れている。加工用電極／Ｉは電極回転装置１２に、ある
いは加工用電極／／を第１図（蜀のＸ、 Ｙ軸方向に
微小移動させて放電加工を実施するための電極揺動装置
／３に取り付けられており、さらに、電極回転装置／２
あるいは電極揺動装置／３は、第１図（Ａ）の２軸方向
に移動自在なスライダＡ側に取り付けられている。The device for supplying machining fluid to the machining tank t is composed of a machining fluid tank j and a ponder (P) B, and the machining fluid pressurized by a bonder (CP)≦ operated by a motor M is
It is fed to the machining fluid supply section ig of the machining tank l via the electromagnetic valve /j, and is also supplied to the jet nozzle 7 and the jet nozzle that sprays directly onto the workpiece. A device for discharging machining fluid is a discharge valve, and an air cylinder 10 for operating the discharge valve is attached to the discharge valve. The machining electrode/I is attached to the electrode rotating device 12, or the machining electrode// is attached to the electrode swinging device/3 for performing electric discharge machining by minutely moving the machining electrode// in the In addition, an electrode rotation device/2
Alternatively, the electrode swing device/3 is attached to the slider A side that is movable in two axial directions in FIG. 1(A).
次に上記第１図（Ａ）及び（Ｂ）の動作について説明す
る。従来の放電加工装置において加工液の液面制御をす
るには、まず、加工槽ｌに設けられたスライド板３を所
定の液面位置に固定する。その後、電磁弁／３．ポンプ
（功に作動させ、加工液を加工液供給部／ｇを経て加工
槽ｌ内に急速に充満させる。Next, the operations shown in FIGS. 1(A) and 1(B) will be explained. In order to control the level of machining fluid in a conventional electrical discharge machining device, first, the slide plate 3 provided in the machining tank 1 is fixed at a predetermined fluid level position. After that, solenoid valve/3. The pump (operate properly to rapidly fill the machining tank 1 with machining fluid through the machining fluid supply section/g).
この時、加工液が切欠き部２よりオーバフローした状態
において、フロースイッチｔの作動により電磁弁／Ｓの
作動を停止させ、一方、常時噴出ノズル７及び噴射ノズ
ルｇから加工槽ｌに加工液を供給し、上記オーバフロー
の状態を持続させて加工液の液面を一定に保持するよう
にする。この場合、フロースイッチ＃に’１ＯＮ状態と
なっている。何かの原因により加工液の液面が下降する
と、フロースイッチψはＯＦＦ状態となり、その信号に
より加工処理を停止させるとともに、ポンプｐ （＋）
の作動な停止させ、加工液の液面近傍での放電による加
工液の引火等の危険を回避するような動作を行なう。At this time, in a state where the machining fluid overflows from the notch 2, the operation of the solenoid valve/S is stopped by the operation of the flow switch t, and on the other hand, the machining fluid is discharged from the constant jet nozzle 7 and the jet nozzle g into the machining tank l. The above-mentioned overflow state is maintained to keep the level of the machining fluid constant. In this case, flow switch # is in the '1 ON state. If the level of the machining fluid drops for some reason, the flow switch ψ turns OFF, and the signal stops the machining process, and the pump p (+)
The operation of the machining fluid is stopped, and operations are performed to avoid dangers such as ignition of the machining fluid due to electrical discharge near the surface of the machining fluid.
従来の放電加工装置は以上のように構成されているので
、被加工物の加工処理が進んで加工用電極ｌ／が下降し
、電極回転装置１２あるいは電極揺動装置７３等が加工
液中に入っても、加工液の液面は一定に保持されている
ので、加工粉等が混入している加工液が、加工液中に浸
漬してなる電極回転装置ｔ２あるいは電極揺動装置／３
のそれぞれに付着したり、又はこれら各装置／２． ／
３内に侵入するという不都合な現象が起る欠点があった
。Since the conventional electric discharge machining apparatus is configured as described above, as the machining process of the workpiece progresses, the machining electrode 1/ is lowered, and the electrode rotating device 12 or the electrode swinging device 73 is immersed in the machining fluid. Even if the machining fluid enters the machining fluid, the level of the machining fluid is kept constant, so that the machining fluid mixed with machining powder etc. is immersed in the machining fluid.
or each of these devices/2. /
There was a drawback that an inconvenient phenomenon of intrusion into the interior of the 3rd party occurred.
この発明は上記のような従来のものの欠点を除去するた
めになされたもので、加工槽内の加工液の上限の液面を
検出する手段と、前記加工槽の加工液を排出する手段と
、加工用電極を取り付けるスライダ側に設けられ、任意
の位置に設定可能な少なくとも２個以上の液面検出手段
とを備え、この各液面検出手段からの液面検出信号にて
、前記加工槽に対する加工液の供給と排出を、前記スラ
イダの下降にしたがって、前記各液面検出手段の間で制
御することかできるようにした構成を有し、加工液の液
面制御を、加工用電極の位置により必要とする所定の液
面に制御することにより、電極回転装置や、電極揺動装
置が加工液中に浸漬して、これら各装置に加工液が付着
したり又は浸入したりすることがないように液面を保持
し得る放電加工装置を提供することを目的としている。This invention was made to eliminate the drawbacks of the conventional ones as described above, and includes means for detecting the upper limit level of machining fluid in a machining tank, means for discharging the machining fluid from the machining tank, At least two or more liquid level detection means are provided on the slider side to which the processing electrode is attached and can be set at any position, and the liquid level detection signal from each liquid level detection means is used to detect the processing tank The supply and discharge of the machining fluid can be controlled between the liquid level detection means as the slider descends, and the level of the machining fluid can be controlled by adjusting the position of the machining electrode. By controlling the liquid level to the required predetermined level, the electrode rotating device and electrode swinging device will not be immersed in the machining fluid, and the machining fluid will not adhere to or infiltrate these devices. It is an object of the present invention to provide an electric discharge machining device that can maintain a liquid level as described above.
以下、この発明の一実施例を図について説明する。第２
図（Ａ）及び（Ｂ）はこの発明の一実施例である放電加
工装置の構成を示す斜視図及びそのＡ −Ａ線方向から
見た矢視図で、第１図（Ａ）及び（Ｂ）と同一部分には
同一符号を用いて表示してあり、その詳細な説明は省略
する。上記各図において、＃、 ／７は加工槽ｌ側に設
けられたフロートスイッチ弘と同一機能な何する上側及
び下側フロートスイッチであり、各上側及び下側フロー
トスイッチ＃、 ／７はスライダｌｔ側に、かつ上下方
向の任意の位置に設定可能な状態で２個取り付けられて
いる。その他の各部構成は、上記第１図（Ａ）及び（Ｂ
）に示すものと同じ構成部品によって形成されている。An embodiment of the present invention will be described below with reference to the drawings. Second
Figures (A) and (B) are a perspective view showing the configuration of an electric discharge machining apparatus which is an embodiment of the present invention, and a view taken from the direction of the line A-A. ) are indicated using the same reference numerals, and detailed explanation thereof will be omitted. In each of the above figures, # and /7 are upper and lower float switches that have the same function as the float switch Hiroshi provided on the processing tank L side, and each upper and lower float switch # and /7 are sliders L. Two of them are attached to the side and can be set at any position in the vertical direction. The configuration of other parts is shown in Figures 1 (A) and (B) above.
) is formed by the same components as shown in .
次に上記第２図（Ａ）及び（Ｂ）の動作について説明す
る。まず、加工槽ｌに設けられたスライド板３を必要と
する最高液面位置に固定し、その後電磁弁／ｊを作動さ
せ、フロートスイッチ弘がＯＮ状態になるまでポンプ（
Ｐｉ、＜を動作させて、加工液を加工液供給部／ｇを経
て加工槽ｌ内に急速に充満させる。Next, the operations shown in FIGS. 2(A) and 2(B) will be explained. First, the slide plate 3 provided in the processing tank L is fixed at the required highest liquid level position, and then the solenoid valve /j is activated and the pump (
Pi,< is operated to rapidly fill the machining tank l with machining fluid via the machining fluid supply section/g.
次いで、上側フロートスイッチ／Ａを、電極回転装置／
２あるいは電極揺動装置／３が加工液面と非接触状態に
許容できる位置に設定するとともに、下側フロートスイ
ッチ／７を、加工用電極／／との間で放電が発生しない
位置に設定する。その後、スライダ／ｌを下降させ、所
定の位置より被加工物に対する加工処理をスタートする
。スライダ／４が加工処理の進行とともに下降し、上側
フロートスイッチ／ＡＩＪ″−ＯＮ状態となった時、加
工液の排出パルプ９がエアシリンダｌＯにより自動的に
開放されて加工液が外部に排出される。そして、上側フ
ロートスイッチ／６がＯＦＦ状態となった時、エアシリ
ンダ１０の動作により排出パルブタは閉成される。さら
に、下側フロートスイッチ／７がＯＮ状態にある場合は
、加工液面は加工可能状態にあり、加工処理は続行され
る。また、下側フロートスイッチ／７がＯＦＦ状態とな
った場合は、一時加工処理な中止し、電磁弁／Ｓを作動
させて下側フロートスイッチ１７がＯＮ状態になるまで
作動を続けさせ、一定時間内に下側フロートスイッチ／
７がＯＮ状態となった時に、電磁弁／ｊの作動を停止し
て加工処理を継続させる。さらに、一定時間が経過して
も、下側フロートスイッチ／７がＯＮ状態にならない時
は、機械が異常状態にあるものとして、機械全体をスト
ラグさせる。ここで、加工処理の進行に伴ってカーボン
等が被加工物の上面に生成され、この時、スライダ／ｌ
Ｉが上昇した場合に加工液面が上昇するが、加工槽ｔの
フロートスイッチｌがＯＮ状態になった時に加工処理を
停止する。Next, the upper float switch/A is connected to the electrode rotating device/
2 or electrode rocking device/3 is set to a position that allows it to be in a non-contact state with the machining fluid level, and the lower float switch/7 is set to a position where no discharge occurs between it and the machining electrode//. . Thereafter, the slider /l is lowered to start processing the workpiece from a predetermined position. When the slider 4 descends as the machining process progresses and the upper float switch /AIJ'' is turned on, the machining fluid discharge pulp 9 is automatically opened by the air cylinder IO, and the machining fluid is discharged to the outside. Then, when the upper float switch/6 is in the OFF state, the discharge valve is closed by the operation of the air cylinder 10.Furthermore, when the lower float switch/7 is in the ON state, the machining liquid level is ready for machining, and the machining process continues.Also, if the lower float switch/7 is in the OFF state, the machining process is temporarily stopped, the solenoid valve/S is activated, and the lower float switch/7 is turned off. 17 is in the ON state, and within a certain period of time the lower float switch /
When valve 7 is turned on, the operation of electromagnetic valve /j is stopped to continue the machining process. Furthermore, if the lower float switch/7 is not turned on even after a certain period of time has elapsed, it is assumed that the machine is in an abnormal state and the entire machine is stalled. Here, as the processing progresses, carbon etc. are generated on the upper surface of the workpiece, and at this time, the slider/l
When I rises, the machining liquid level rises, but the machining process is stopped when the float switch l of the machining tank t is turned on.
以上のように、この発明に係る放電加工装置によれば、
加工構内の加工液の液面制御を、加工槽側のみならず加
工用電極な取り付けるスライダ側からも制御が行なわれ
るように構成したので、加工液面を常に必要な位置状態
にて確実に保持することができ、これにより電極回転装
置や、電極揺動装置が加工液中に浸漬して、これら各装
置に加工液が付着したり又は浸入することを防止でき、
かつ加工液中に混入する加工粉、スラッチ等からも有効
的に保護することができるなどの極めて優れた効果を奏
するものである。As described above, according to the electrical discharge machining apparatus according to the present invention,
The level of machining fluid in the machining facility is controlled not only from the machining tank side but also from the slider side where the machining electrode is attached, ensuring that the machining fluid level is always maintained at the required position. This makes it possible to prevent the electrode rotating device and the electrode swinging device from being immersed in the machining fluid, thereby preventing the machining fluid from adhering to or infiltrating these devices.
Moreover, it exhibits extremely excellent effects such as being able to effectively protect against processing powder, slatch, etc. mixed in the processing fluid.
第１図（蜀及び（Ｂ）は従来の放電加工装置の構成を示
す斜視図及びそのＡ −Ａ線方向から見た矢視図、第２
図（Ａ）及び（Ｂ）はこの発明の一実施例である放電加
工装置の構成を示す斜視図及びそのＡ−Ａ線方向から見
た矢視図である。
図において、ｌ・・・加工槽、λ・・・切欠き部、３・
・・スライド板、弘・・・フロートスイッチ、！・・・
加工液タンク、乙・・・ボンダ（Ｐ）、７・・・常時噴
出ノズル、ｔ・・・噴射ノズル、デ・−・排出バルブ、
ＩＯ・・・エアシリンダ、ｌ／・・・加工用電極、ｔ２
・・・電極回転装置、１３・・・電極揺動装置、／ｌ・
・・スライダ、／Ｓ・・・電磁弁、／Ａ・・・上側フロ
ートスイッチ、１７・・・下側フロートスイッチである
。
なお、図中、同一符号は同一、又は相当部分を示す。
代理人 葛 野 信 −
手続補正書（自発）
特許庁長官殿
１、事件の表示 特願昭５８−２３０２５号２、発
明の名称 放電加工装置
３、補正をする者
事件との関係 特許出願人
代表者片山仁へ部
４、代理人
５、補正の対象 発明の詳細な説明の欄６、補正の内
容
（１）明細書第６頁第１１行目の「加工用電極１１との
間で」を、「加工液の液面上で」と補正する。
（２） 明細書第８頁第５行目の「スラッチ」を。
「スラッジ」と補正する。
以上Figure 1 (Shu and (B) is a perspective view showing the configuration of a conventional electrical discharge machining device and its arrow view as seen from the A-A line direction,
Figures (A) and (B) are a perspective view showing the configuration of an electric discharge machining apparatus according to an embodiment of the present invention, and a view taken along the line A--A. In the figure, l: processing tank, λ: notch, 3:
...Slide plate, Hiro...Float switch,! ...
Machining liquid tank, B...bonder (P), 7...continuous jet nozzle, t...spray nozzle, D...discharge valve,
IO...air cylinder, l/...processing electrode, t2
... Electrode rotating device, 13... Electrode rocking device, /l.
...Slider, /S...Solenoid valve, /A...Upper float switch, 17...Lower float switch. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Makoto Kuzuno - Procedural amendment (voluntary) Commissioner of the Japan Patent Office 1, Indication of the case Japanese Patent Application No. 58-23025 2, Title of the invention Electrical discharge machining device 3, Person making the amendment Relationship with the case Representative of the patent applicant To Hitoshi Katayama, Department 4, Agent 5, Subject of amendment Detailed description of the invention column 6, Contents of amendment (1) "Between the processing electrode 11" on page 6, line 11 of the specification. , corrected as "above the surface of the machining fluid." (2) "Slatch" on page 8, line 5 of the specification. Correct as "sludge."that's all
Claims (1)
その間隙に起る放電により前記被加工物を加工する放電
加工装置において、加工槽内の加工液の上限の液面を検
出する手段と、前記加工槽の加工液を排出する手段と、
前記加工用電極を取り付けるスライダ側に設けられ、任
意の位置に設定可能な少なくとも２個以上の液面検出手
段とな備え、該缶液面検出手段からの液面検出信号にて
、前記加工槽に対する加工液の供給と排出を、前記スラ
イダの下降にしたがって、前記各液面検出手段の間で制
御することができるようにしたことを特徴とする放電加
工装置。Electricity is applied between the machining electrode and the workpiece through the machining fluid,
In an electrical discharge machining apparatus that processes the workpiece by electric discharge occurring in the gap, means for detecting an upper limit liquid level of machining fluid in a machining tank, and means for discharging the machining fluid from the machining tank;
At least two or more liquid level detection means are provided on the slider side to which the processing electrode is attached and can be set at arbitrary positions, and the processing tank is detected by a liquid level detection signal from the can liquid level detection means. An electrical discharge machining apparatus characterized in that the supply and discharge of machining fluid to and from the fluid level can be controlled between the fluid level detection means according to the descent of the slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2302583A JPS59152027A (en) | 1983-02-15 | 1983-02-15 | Electric discharge machining equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2302583A JPS59152027A (en) | 1983-02-15 | 1983-02-15 | Electric discharge machining equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59152027A true JPS59152027A (en) | 1984-08-30 |
Family
ID=12098937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2302583A Pending JPS59152027A (en) | 1983-02-15 | 1983-02-15 | Electric discharge machining equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59152027A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62117023U (en) * | 1986-01-16 | 1987-07-25 | ||
| JPS6451227A (en) * | 1987-08-22 | 1989-02-27 | Fanuc Ltd | Fluid tank locking device |
| EP1498207A1 (en) * | 2003-06-17 | 2005-01-19 | Elenix Inc. | Small-hole electrical discharge machining device and multiple diesinking-and-small-hole electrical discharge machining device, and method for multiple diesinking-and-small-hole electrical discharge machining with the same device |
| WO2010058154A1 (en) * | 2008-11-18 | 2010-05-27 | Sarclad Limited | Flow control methods and apparatus for electrical discharge machines |
| CN109482992A (en) * | 2018-09-25 | 2019-03-19 | 珠海格力精密模具有限公司 | Electrode dismounting system |
-
1983
- 1983-02-15 JP JP2302583A patent/JPS59152027A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62117023U (en) * | 1986-01-16 | 1987-07-25 | ||
| JPS6451227A (en) * | 1987-08-22 | 1989-02-27 | Fanuc Ltd | Fluid tank locking device |
| EP1498207A1 (en) * | 2003-06-17 | 2005-01-19 | Elenix Inc. | Small-hole electrical discharge machining device and multiple diesinking-and-small-hole electrical discharge machining device, and method for multiple diesinking-and-small-hole electrical discharge machining with the same device |
| US7202439B2 (en) | 2003-06-17 | 2007-04-10 | Elenix, Inc. | Small-hole electrical discharge machining device and multiple diesinking-and-small-hole electrical discharge machining device, and method for multiple diesinking-and-small-hole electrical discharge machining with the same device |
| WO2010058154A1 (en) * | 2008-11-18 | 2010-05-27 | Sarclad Limited | Flow control methods and apparatus for electrical discharge machines |
| CN109482992A (en) * | 2018-09-25 | 2019-03-19 | 珠海格力精密模具有限公司 | Electrode dismounting system |
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