JPS59169726A - Wire cut electrical discharge machining method - Google Patents
Wire cut electrical discharge machining methodInfo
- Publication number
- JPS59169726A JPS59169726A JP4149183A JP4149183A JPS59169726A JP S59169726 A JPS59169726 A JP S59169726A JP 4149183 A JP4149183 A JP 4149183A JP 4149183 A JP4149183 A JP 4149183A JP S59169726 A JPS59169726 A JP S59169726A
- Authority
- JP
- Japan
- Prior art keywords
- machining
- splash guard
- wire
- electrical discharge
- workpiece
- 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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
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】 (1)発明の技術分野 本発明はワイヤカット放電加工方法に関する。[Detailed description of the invention] (1) Technical field of the invention The present invention relates to a wire cut electrical discharge machining method.
特に、上縁の開いた箱状のスプラッシガードを有するワ
イヤカット放電加工機を使用してなすワイヤカット放電
加工方法の改良に関する。In particular, the present invention relates to an improvement in a wire-cut electric discharge machining method using a wire-cut electric discharge machine having a box-shaped splash guard with an open upper edge.
(2)技術の背景
ワイヤカット放電加工方法とは、ワイヤカット放電加工
機を使用して、金属等の導電性被加工体とこれを貫通し
て直線状に伸張された黄銅等の導電性材料よりなるワイ
ヤ電極との間の間隙に噴射される加工液中に断続的放電
を発生させて被加工体の加工領域を極めて局部的に軟化
または溶融するとともに加工領域近傍に圧力の断続的変
化を発生させ、この圧力の断続的変化によって、上記の
軟化または溶融した被加工体領域を剥離・除去してなす
導電性材料、特に、金属の加工方法をいう。(2) Background of the technology The wire-cut electrical discharge machining method is a method that uses a wire-cut electrical discharge machine to process a conductive workpiece such as metal and a conductive material such as brass that is stretched linearly through the workpiece. Intermittent electrical discharge is generated in the machining liquid injected into the gap between the wire electrode and the workpiece, which softens or melts the machining area of the workpiece extremely locally, and causes intermittent changes in pressure near the machining area. A method of processing conductive materials, particularly metals, in which the softened or melted region of the workpiece is peeled off and removed by intermittent changes in pressure.
ワイヤカット放電加工機を使用してなすワイヤカット放
電加工方法においては、放電が加工液中でなされること
が必須であり、また、この加工液をもって切削屑を常時
加工領域から除去する必要もあるので、加工期間中、加
工液が加工領域に噴流し続けていることが必要である。In the wire-cut electrical discharge machining method using a wire-cut electrical discharge machine, it is essential that electrical discharge occurs in a machining fluid, and it is also necessary to constantly remove cutting debris from the machining area using this machining fluid. Therefore, it is necessary that the machining fluid continues to flow into the machining area during the machining period.
この加工液噴流の圧力は従来0.1 Kg/c■2程度
が使用されていたが、この噴流が被加工体表面において
跳ね返り、大量の加工液の飛沫が加工槽外に飛散しjそ
の結果、放電加工機近傍に水ぬれの弊害が発生する。そ
のため、従来技術においては、加工槽の外壁に沿って組
み立てられた透明材料、主としてプラスチック材ネご1
等よりなるスプラッシガードを設けて加工液の飛散を防
止していた。Conventionally, the pressure of this machining fluid jet was about 0.1 Kg/c2, but this jet bounced off the surface of the workpiece and a large amount of machining fluid was splashed outside the machining tank. , the problem of water getting wet near the electrical discharge machine. Therefore, in the prior art, a transparent material, mainly a plastic material, assembled along the outer wall of the processing tank.
A splash guard was installed to prevent machining fluid from scattering.
ただ、第1図に示すように、ワイヤカット放電加工機に
は、その加工領域(図に7をもって示す被加工体に溝状
に切り込まれた領域)において。However, as shown in FIG. 1, the wire-cut electrical discharge machine has a processing area (a region cut into a groove shape in the workpiece indicated by 7 in the figure).
上方に位置する加工電極ヘッドlから加工用ワイヤ電極
2が下方に伸延しているので、スプラッシガードを−1
−蓋を有する箱状となして加工領域を完全に覆うことは
困難である。そのため、4枚の板状部材3.3°、3“
°、3°°°を加工槽4の外壁に沿って図示するように
組み立てて」一方の開いた箱状のスプラッシガードとし
て使用していた。なお、図において、5は電極へラドl
を支持するコラムであり、6は被加工体7を支持する支
持枠である。Since the processing wire electrode 2 extends downward from the processing electrode head l located above, the splash guard should be set at -1.
- It is difficult to completely cover the processing area with a box shape with a lid. Therefore, the four plate-like members 3.3°, 3"
3° and 3°° were assembled along the outer wall of the processing tank 4 as shown in the figure and used as an open box-shaped splash guard. In addition, in the figure, 5 is the rad l to the electrode.
6 is a support frame that supports the workpiece 7.
(3)従来技術と問題点
ところが、近時加工液噴流の圧力を大きくすると加工速
度の上Aが可能であるということが判明し、0.3〜0
.5kg/cm2程度の圧力が使用されることが一般と
なった。この圧力の増大に伴い、加工液の飛沫飛散によ
る弊害は更にその程度を増し、従来技術におけるスブラ
ッシガードでは必ずしも満足すべき効果を発揮しないこ
とが明らかになった。具体的には、特に、加工初期にお
いて加工液飛沫の飛散がはなはだしく、水ぬれの弊害が
大きいという事実が認められ、操業面から重大な欠点を
なしていた。(3) Conventional technology and problems However, it has recently been found that increasing the pressure of the machining fluid jet can increase the machining speed by 0.3 to 0.
.. It has become common to use a pressure of about 5 kg/cm2. As this pressure increases, the degree of adverse effects caused by the splashing of machining fluid further increases, and it has become clear that the brush guard in the prior art does not necessarily exhibit a satisfactory effect. Specifically, it has been recognized that, particularly in the early stages of machining, there is a great deal of splashing of machining fluid, and the adverse effects of water wetting are significant, which is a serious drawback from an operational standpoint.
(4)発明の目的
本発明の目的は、この欠点を解消することにあり、ワイ
ヤカット放電加工機を使用してなすワイヤカット放電加
工方法において、加工液の噴射圧が大きい場合でも簡易
な手段をもって加工液飛沫の飛散を防止しうるワイヤカ
ット放電加工方法を提供することにある。(4) Purpose of the Invention The purpose of the present invention is to eliminate this drawback, and to provide a simple method for wire-cut electrical discharge machining using a wire-cut electrical discharge machine even when the injection pressure of machining fluid is high. An object of the present invention is to provide a wire-cut electrical discharge machining method that can prevent machining liquid droplets from scattering.
(5)発明の構成
本発明の特徴的構成は、加工領域を囲んで配置された板
状部材よりなるスプラッシガードを有する放電加工機を
使用しでなすワイヤカット放電加工方法において、」二
記のスプラッシガードに囲まれた領域に、」二記のスブ
ラッシガードより小さな寸法を有する板状部材よりなる
着脱可能な第2のスプラッシガードを配置し、この第2
のスブラッシガードをもって加工領域を更に完全に囲ん
だ状態において、放電加工をなすことにある。(5) Structure of the Invention A characteristic structure of the present invention is a wire-cut electric discharge machining method using an electric discharge machine having a splash guard made of a plate-like member arranged surrounding a machining area. A removable second splash guard made of a plate member having smaller dimensions than the second splash guard is arranged in the area surrounded by the second splash guard.
Electric discharge machining is performed in a state where the machining area is more completely surrounded by the brush guard.
本発明の要旨に係る第2のスプラッシガードは自立しう
ることか現実的に有利である。被加工体を支持する支持
枠」−に、あるいは、被加工体の」二面が平面である場
合は被加工体上に配設することが可能となり、加工領域
を局部的にカバーしうるからである。更に、この第2の
スプラッシガードは、加工領域、すなわち、ワイヤ電極
と被加工体とが接触する領域を囲んで配設されることと
なるため、その形状は第2図に示すように側面の一部に
開口が形成されうる物である必要がある。そこで、図(
a)に示す31のようなコの字型で側面の一部に常時開
口を有する物が簡易であるが、図(b)に示す32のよ
うにL字型の物を2個組み合わせて使用することもでき
る。更に、図(C)に示す33のように上蓋のない箱状
部材の1つの側面のごく狭い領域にのみ開口を有するも
のや、図(d、)に示す34のように上蓋のない箱状部
材の1つの側面が開閉されうる物等も使用可能である。It is practically advantageous that the second splash guard according to the subject matter of the invention can be self-supporting. It can be placed on the support frame that supports the workpiece, or on the workpiece if the two surfaces of the workpiece are flat, and can locally cover the processing area. It is. Furthermore, since this second splash guard will be disposed surrounding the processing area, that is, the area where the wire electrode and the workpiece come into contact, its shape will be similar to the side surface as shown in Fig. 2. It is necessary that an opening can be formed in a part of the opening. Therefore, figure (
A U-shaped device with a permanent opening on a part of the side, such as 31 shown in a), is simple, but two L-shaped devices, such as 32 shown in figure (b), are used in combination. You can also. Furthermore, there are box-shaped members without a top lid, such as 33 shown in Figure (C), which have an opening only in a very narrow area on one side, and box-shaped members without a top lid, such as 34 shown in Figure (d). It is also possible to use one side of the member that can be opened and closed.
図(b)、(C)及び(d)に示すものは、図(a)に
示す物より加工液飛沫の飛散を防止する効果が一段と高
いことは明らかである。これらは、被加工体の形状や大
きさ、加工液噴流の圧力等に応じて適宜選択されること
は言うまでもない。It is clear that the products shown in Figures (b), (C), and (d) are more effective in preventing the scattering of machining fluid than the product shown in Figure (a). It goes without saying that these are appropriately selected depending on the shape and size of the workpiece, the pressure of the machining fluid jet, and the like.
又、この第2のスプラッシガードの配置される場所は、
」二記のとおり、被加工体を支持する支持枠6(第1図
参照)上でもよいし、又、被加工体7(第1図参照)の
上面が平面であり、かつ、その面積が比較的大きい場合
は被加工体7の上でもさしつかえない。更に、第2のス
ブラッシガードが、加工液の飛沫の飛散が特に激しい加
工初期において上記の加工領域を囲む位置に配設される
ことは言うまでもないが、加工経路の条件により、加工
期間中、第2のスプラッシガードが電極ヘッドの移動を
妨げないときは、加工の全期間を通じて、第2のスプラ
ッシガードが加工領域を囲む位置に配設されることが望
ましい。又、第2のスプラッシガードが加工期間中に電
極ヘッドと衝突する場合であっても、第2のスプラッシ
ガードの重量が過大でない限り、電極ヘッドは第2のス
ブラッシガードを押圧しながらこれを伴なって移動しう
るから、この場合でも加工の全期間を通じて第2のスプ
ラッシガードを使用して加工液飛沫の飛散を防止しなが
ら加工をなすことが可能であり、多くの場合、工程」−
の不利益は全くない。Also, the location where this second splash guard is placed is
2, it may be placed on the support frame 6 (see Figure 1) that supports the workpiece, or the upper surface of the workpiece 7 (see Figure 1) is flat and its area is If it is relatively large, it may be placed on top of the workpiece 7. Furthermore, it goes without saying that the second brush guard is disposed at a position surrounding the above-mentioned machining area at the beginning of machining when the splashing of machining liquid is particularly intense, but depending on the conditions of the machining path, during the machining period. When the second splash guard does not interfere with the movement of the electrode head, it is desirable that the second splash guard be disposed at a position surrounding the processing area throughout the processing period. Furthermore, even if the second splash guard collides with the electrode head during processing, as long as the weight of the second splash guard is not excessive, the electrode head will continue to press against the second splash guard. Even in this case, it is possible to use the second splash guard throughout the machining period to prevent the machining fluid from scattering, and in many cases, “Process”-
There is no disadvantage at all.
なお、第2のスプラッシガードの材料は、特に限定され
るものではないが、本来のスプラッシガードに主として
使用されている材料と同様の透明なプラスチック材料等
を使用することが現実的である。又、第2のスブラッシ
ガードの寸法は比較的小さいものであるから、特に組み
立て式とする必要はない。同様の理由により、非使用時
の保管等の面で不利益が生ずることもない。The material of the second splash guard is not particularly limited, but it is practical to use the same transparent plastic material as the material mainly used for the original splash guard. . Further, since the dimensions of the second brush guard are relatively small, there is no particular need for it to be assembled. For the same reason, there is no disadvantage in terms of storage when not in use.
(6)発明の実施例
以下図面を参照しつつ、本発明の一実施例に係るワイヤ
カット放電加工方法の要旨である第2のスプラッシガー
ドを使用してなす加工方法について説明し、本発明の構
成と特有の効果とを明らかにする。(6) Embodiments of the Invention A machining method using a second splash guard, which is the gist of a wire-cut electric discharge machining method according to an embodiment of the present invention, will be explained below with reference to the drawings, and the present invention The structure and unique effects of the system will be clarified.
第3図参照
第3図は、第2図(d)に示した第2のスプラッシガー
ド34を支持枠6上に配設して、この第2のスプラッシ
ガード34をもって被加工体7を囲んでなす放電加工状
態の概念的斜視図である。図において、1.2.3.3
°、3°°、31°、4及び5は従来技術に係るワイヤ
カット放電加工機を説明するために使用した図(第1図
)に示すものと同一である。加工液噴流の圧力を大きく
なした場合に、特に加工液飛沫の飛散がはなはだしい加
工初期において、図示せる如くワイヤ電極2とその周囲
の加工領域を局部的にカバーするように第2のスプラッ
シガード34を配設して加工をなすことにより、加工液
飛沫の飛散を有効に防止することが可能となる。又、飛
沫飛散のはなはだしい初期加工終了後においては、第2
のスプラッシガード34が電極へラド1の移動を妨げな
い加工経路であるときは第2のスブラッシガード34を
そのままの状態に保持すればよく、一方、第2のスプラ
ッシガード34が電極ヘッドlの移動を妨げる加工経路
であるときは取り外せばよい。又、電極ヘッド1が第2
のスプラフシガード34を押圧しながらこれを伴って移
動しうるときは、第2のスプラッシガード34を取り外
す必要はない。Refer to FIG. 3 In FIG. 3, the second splash guard 34 shown in FIG. It is a conceptual perspective view of the electric discharge machining state which is enclosed. In the figure, 1.2.3.3
degrees, 3 degrees, 31 degrees, 4, and 5 are the same as those shown in the diagram (FIG. 1) used to explain the wire-cut electric discharge machine according to the prior art. When the pressure of the machining fluid jet is increased, especially in the early stages of machining when there is a great deal of splattering of machining fluid, the second splash guard is installed to locally cover the wire electrode 2 and the machining area around it, as shown in the figure. By arranging 34 and performing processing, it becomes possible to effectively prevent the scattering of processing liquid droplets. In addition, after the initial machining is completed when there is a lot of splashing, the second
When the second splash guard 34 is in the machining path that does not impede the movement of the rad 1 to the electrode, it is sufficient to keep the second splash guard 34 as it is; If the machining path obstructs the movement of l, it can be removed. Also, the electrode head 1
There is no need to remove the second splash guard 34 when the second splash guard 34 can be pressed and moved with it.
上記の工程により、加工液噴流の圧力が比較的大きい場
合でも、極めて簡易な方法で特に加工初期の加工液飛沫
の飛散を有効に防止しうろことが確認された。It was confirmed that by the above process, even when the pressure of the machining fluid jet is relatively high, the scattering of machining fluid droplets can be effectively prevented by an extremely simple method, especially in the initial stage of machining.
(7)発明の詳細
な説明せるとおり、本発明によれば、ワイヤカット放電
加工機を使用してなすワイヤカット放電加工方法におい
て、加工液の噴射圧が大きい場合でも、簡易な手段をも
って加工液飛沫の飛散を防止しうるワイヤカット放電加
工方法を提供することができる。(7) As described in detail, according to the present invention, in the wire-cut electrical discharge machining method using a wire-cut electrical discharge machine, even when the injection pressure of the machining fluid is high, the machining fluid can be removed by simple means. It is possible to provide a wire cut electric discharge machining method that can prevent the scattering of droplets.
第1図は従来技術におけるワイヤカット放電加工機を使
用してなすワイヤカット放電加工の加工状態を示す概念
的斜視図であり°、第2図(a)乃至(d)−は本発明
の要旨である第2のスプラッシガードの概念的斜視図で
あり、第3図は本発明の一実施例に係るワイヤカット放
電加工方法の加工状態を示す概念的斜視図である。
1・・・電極ヘッド、 2・Φ・ワイヤ電極、3.3
′、3゛°、3°°°・・・従来技術において本来的に
存在するスプラッシガード板、 31.32.33.3
4拳・・本発明の要旨に係り着脱可能な第2のスブラッ
シガード、 4・Φ・加工槽、 5・・・コラム、
6・・・被加工体支持枠、 7・・・被加工体。
特許出願人 ファナック株式会社
代理人 弁理士 寒 川 誠 −FIG. 1 is a conceptual perspective view showing the machining state of wire-cut electrical discharge machining performed using a wire-cut electrical discharge machine in the prior art. 3 is a conceptual perspective view of a second splash guard, and FIG. 3 is a conceptual perspective view showing a machining state of a wire-cut electric discharge machining method according to an embodiment of the present invention. 1... Electrode head, 2. Φ wire electrode, 3.3
', 3゛°, 3°°°... Splash guard plate that originally exists in the prior art, 31.32.33.3
4 fists: a detachable second brush guard according to the gist of the present invention; 4: Φ processing tank; 5: column;
6... Workpiece support frame, 7... Workpiece. Patent applicant: Fanuc Co., Ltd. Agent Patent attorney: Makoto Samukawa −
Claims (1)
ラッシガードを有するワイヤカット放電加工機を使用し
てなすワイヤカット放電加工方法において、前記スプラ
ッシガードに囲まれた領域内に、前記加工領域を囲むよ
うに、前記スプラッシガードより小さな寸法を有し板状
部材よりなる第2のスプラッシガードを設けてなすこと
を特徴とするワイヤカット放電加工方法In a wire-cut electric discharge machining method using a wire-cut electric discharge machine having a splash guard made of a plate-like member arranged so as to surround a machining area, the A wire-cut electric discharge machining method characterized in that a second splash guard is provided, which is made of a plate-shaped member and has smaller dimensions than the splash guard, so as to surround the machining area.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4149183A JPS59169726A (en) | 1983-03-15 | 1983-03-15 | Wire cut electrical discharge machining method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4149183A JPS59169726A (en) | 1983-03-15 | 1983-03-15 | Wire cut electrical discharge machining method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59169726A true JPS59169726A (en) | 1984-09-25 |
Family
ID=12609817
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4149183A Pending JPS59169726A (en) | 1983-03-15 | 1983-03-15 | Wire cut electrical discharge machining method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59169726A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4634825A (en) * | 1984-05-16 | 1987-01-06 | Ag Fur Industrielle Elektronik Agie Losone B. Locarno | Apparatus for scavenging the erosion zone of spark-erosive cutting plants |
JPS62106737U (en) * | 1985-12-26 | 1987-07-08 | ||
US4712288A (en) * | 1984-12-05 | 1987-12-15 | Ag Fur Industrielle Elektronik Agie Losone B. Locarno | Spark eroder with fixed machine table and lowerable working container for the dielectric |
US4749838A (en) * | 1984-12-21 | 1988-06-07 | Ag Fur Industrielle Elektronik Agie | Spark erosion machine with a fixed machine table, removable table plate, and lowerable working container for the dielectric |
US4841126A (en) * | 1987-12-28 | 1989-06-20 | Mcwilliams Machinery Sales, Division Of Bridgeport Machines Inc. | Rotary table wire EDM machine |
-
1983
- 1983-03-15 JP JP4149183A patent/JPS59169726A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4634825A (en) * | 1984-05-16 | 1987-01-06 | Ag Fur Industrielle Elektronik Agie Losone B. Locarno | Apparatus for scavenging the erosion zone of spark-erosive cutting plants |
US4712288A (en) * | 1984-12-05 | 1987-12-15 | Ag Fur Industrielle Elektronik Agie Losone B. Locarno | Spark eroder with fixed machine table and lowerable working container for the dielectric |
US4749838A (en) * | 1984-12-21 | 1988-06-07 | Ag Fur Industrielle Elektronik Agie | Spark erosion machine with a fixed machine table, removable table plate, and lowerable working container for the dielectric |
JPS62106737U (en) * | 1985-12-26 | 1987-07-08 | ||
US4841126A (en) * | 1987-12-28 | 1989-06-20 | Mcwilliams Machinery Sales, Division Of Bridgeport Machines Inc. | Rotary table wire EDM machine |
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