JPS62264825A - Wire electric discharge machine - Google Patents
Wire electric discharge machineInfo
- Publication number
- JPS62264825A JPS62264825A JP10495486A JP10495486A JPS62264825A JP S62264825 A JPS62264825 A JP S62264825A JP 10495486 A JP10495486 A JP 10495486A JP 10495486 A JP10495486 A JP 10495486A JP S62264825 A JPS62264825 A JP S62264825A
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- core
- electric discharge
- discharge machining
- wire
- 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
- 238000009760 electrical discharge machining Methods 0.000 claims description 9
- 238000009763 wire-cut EDM Methods 0.000 claims description 7
- 238000003754 machining Methods 0.000 abstract description 28
- 238000010586 diagram Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ワイヤ放電加工装置に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a wire electrical discharge machining apparatus.
第３図は従来のワイヤ放電加工装置の概略構成図である
。図において、（１）は被加工物、（２）は被加工物（
１）を上面に水平に固定した加工テーブルで、加工テー
ブル（２）は２個のモーフ（３） （４１によってＸ軸
及びＹ軸の２次元平面内で自由に移動可能である。FIG. 3 is a schematic diagram of a conventional wire electrical discharge machining apparatus. In the figure, (1) is the workpiece, and (2) is the workpiece (
The processing table (1) is horizontally fixed on the upper surface, and the processing table (2) is freely movable within the two-dimensional plane of the X and Y axes by means of the two morphs (3) (41).
（５）は両モータ（３１（４）に所要の駆動信号を供給
する制御装置で、図示されていない紙テープ等に記録さ
れたＮＣ情報に基づいて制御するようになっている。（
６）はワイヤ電極で、垂直面内のコラム（７）にガイド
ローラ、ワイヤガイド等を介して張設されており、被加
工物（１）の加工部位との間に微小間・隙でもって対向
し被加工物（１）１こ対し垂直に走行するようになって
いる。（８）はワイヤ電極（６）の供給リール、（９）
はワイヤ電極（６）の繰り出し用ローラ、ＱＯＩは使用
済みのワイヤ電極の集積槽である。(5) is a control device that supplies necessary drive signals to both motors (31 (4)), and is controlled based on NC information recorded on a paper tape or the like (not shown).
6) is a wire electrode, which is stretched over a column (7) in a vertical plane via a guide roller, a wire guide, etc., and is connected to the processing part of the workpiece (1) with a small gap. It runs perpendicularly to one workpiece (1) facing each other. (8) is a supply reel for wire electrode (6), (9)
is a roller for feeding out the wire electrode (6), and QOI is a collection tank for used wire electrodes.
次に動作について説明する。Next, the operation will be explained.
ワイヤ電極（６）は被加工物（１）にあけられた加工開
始穴に垂直に挿通され、加工液中で被加工物（１）の加
工部位との間に微小間隙を保ちつつ走行する一方、該間
隙に繰り返しパルス放電を発生せしめ、さらに加工テー
ブル（２）を２個のＸ軸モータ（３）及びＹ軸モータ（
４）により駆動し被加工物（１）を水平面内で移動させ
ることにより被加工物（１）を所望の輪郭に切断加工す
る。The wire electrode (6) is inserted perpendicularly into the machining start hole drilled in the workpiece (1), and runs in the machining fluid while maintaining a small gap between it and the machining part of the workpiece (1). , a pulse discharge is repeatedly generated in the gap, and the processing table (2) is moved by two X-axis motors (3) and a Y-axis motor (
4) to move the workpiece (1) in a horizontal plane, thereby cutting the workpiece (1) into a desired contour.
ところで、第４図は被加工物の輪郭ｙｊ、電加工の最終
状態を示す説明図であるが、周知のように加工開始穴ｉ
ｌｌから順次行われた放電加工を完結するためには、ワ
イヤガイド（６）の放電加工端は現加工の加工軌跡Ｏｚ
と出会う位置α３）まで相対移動しなければならない。By the way, FIG. 4 is an explanatory diagram showing the contour yj of the workpiece and the final state of electrical machining, but as is well known, the machining start hole i
In order to complete the electrical discharge machining performed sequentially from ll, the electrical discharge machining end of the wire guide (6) must be aligned with the machining trajectory Oz of the current machining.
It is necessary to move relatively to the position α3) where it meets .
ところが、輪郭放電加工の場合は、この最終的な位置α
Ｊまで放電加工を完結させると、被加工物（１）より中
子α４が分離する時に種々の問題が生じろことが知られ
ている。However, in the case of contour electrical discharge machining, this final position α
It is known that when electric discharge machining is completed up to J, various problems occur when the core α4 separates from the workpiece (1).
すなわち、第４図に示すように加工軌跡（支）が正しく
完結した場合、中子α滲は被加工物（１）より落下分離
するが、この時ワイヤ電極（６）或いはノズル（図示せ
ず）等と衝突してワイヤ電極（６）の不規則な断線或い
はノズルの変形等を招き、放電加工自体も突然の落下に
よる通電停止にさらされる。That is, when the machining trajectory (support) is completed correctly as shown in Fig. 4, the core α ooze falls and separates from the workpiece (1), but at this time, the wire electrode (6) or nozzle (not shown) ) etc., which may cause irregular wire breakage of the wire electrode (6) or deformation of the nozzle, and the electric discharge machining itself is also exposed to interruption of current supply due to sudden drop.
さらに、第５図、第６図は中子側の落下或いは切断分離
時における状態を示すものであるが、これらの図に示す
ように中子Ｑ４１の被加工物（１）或いはワイヤ電極（
６）等との接触事故が生じる。したがって、従来装置で
は前記中子分離時の事故を防止するため第４図に破線で
示すようにワイヤ電極（６）を最終位置Ｑ３１の手前位
置（１３ｉ）において加工を一旦停止し、Ｗ械操作者が
工作物に支持された状態で中子θ４）を手で支え、加工
終了後にその中子側を被加工物ｆｉｌから取出していた
。Furthermore, FIGS. 5 and 6 show the state when the core side is dropped or cut and separated, and as shown in these figures, the workpiece (1) of the core Q41 or the wire electrode (
6) Accidental contact with other objects may occur. Therefore, in order to prevent accidents during core separation, in the conventional apparatus, processing is temporarily stopped when the wire electrode (6) is placed at a position (13i) before the final position Q31, as shown by the broken line in FIG. 4, and the W machine is operated. A person supports the core θ4) by hand while it is supported by the workpiece, and takes out the core side from the workpiece fil after machining is completed.
従来のワイヤ放電加工装置は以上のように構成されてい
るので、輪郭加工の完了直前において一旦加工を停止し
、手で中子を支持した状態で加工を完結させ、その後に
その中子を被加工物より分離取出すといった非常に面倒
で非能率的な作業を強いられていた。Conventional wire electrical discharge machining equipment is configured as described above, so the machining is temporarily stopped just before the completion of contour machining, the machining is completed with the core supported by hand, and then the core is They were forced to perform extremely troublesome and inefficient work such as separating and extracting the processed materials.
本発明は、上記のような問題点を月７消するためになさ
れたもので、輪郭放電加工を全自動で行うことのできろ
ワイヤ放電加工装置を得ることを目的とするものである
。The present invention has been made in order to eliminate the above-mentioned problems, and it is an object of the present invention to provide a wire electrical discharge machining device that can perform contour electrical discharge machining fully automatically.
本発明に係るワイヤ放電加工装置は、被加工物を垂直に
支持しかつ上下動可能に設置された加工テーブルと、ワ
イヤ電極を水平に走行させかつワイヤ電極の走行方向と
平行に移動可能で、少なくとも一方のワイヤガイドを被
加工物に対し近接可能に設けられた電極支持枠と、輪郭
放電加工の完結前に中子に衝撃力を加えてそれを被加工
物より分離させる衝撃子と、この分離された中子を把持
するハンドとを具備してなるものである。The wire electrical discharge machining apparatus according to the present invention includes a processing table that vertically supports a workpiece and is installed to be movable up and down, and a wire electrode that runs horizontally and is movable parallel to the running direction of the wire electrode. an electrode support frame that allows at least one wire guide to approach the workpiece; an impactor that applies an impact force to the core to separate it from the workpiece before completing contour electrical discharge machining; The device is equipped with a hand for gripping the separated core.
本発明においては、被加工物を加工テーブル上に垂直に
支持し上下動させる一方、ワイヤ電極を水平に走行させ
その走行方向と平行に電極支持枠を移動させることによ
って、輪郭放電加工を垂直面内で実施し、このようにし
て行われた輪郭放電加工の終了直前において衝撃子によ
り中子に衝撃を加え被加工物よりその中子を分離せしめ
ると共に、ハンドで中子を把持し取出すのである。In the present invention, the workpiece is vertically supported on the processing table and moved up and down, while the wire electrode is run horizontally and the electrode support frame is moved parallel to the running direction, thereby performing contour electrical discharge machining on the vertical surface. Immediately before the end of the contour electrical discharge machining, an impactor is used to apply an impact to the core to separate it from the workpiece, and the core is grasped and taken out with a hand. .
息下、本発明の一実施例を図により説明する。 An embodiment of the present invention will now be described with reference to the drawings.
第１図は本発明の実施例の概略構成を示す斜視図で、第
２図はその正面図である。これらの図において、■は被
加工物（１）を垂直に支持する加工テーブルで、Ｌ字状
に形成され被加工物（１）の垂直取付面（２０ａ）を有
する。また、加工テーブル■はその下面の摺動案内部（
２Ｂに上下（垂直）方向の移動を可能にするＺ軸モーク
（社）の送りネジ四を螺合している。FIG. 1 is a perspective view showing a schematic configuration of an embodiment of the present invention, and FIG. 2 is a front view thereof. In these figures, ■ is a processing table that vertically supports the workpiece (1), is formed in an L shape, and has a vertical mounting surface (20a) for the workpiece (1). In addition, the processing table ■ has a sliding guide section (
2B is screwed with four feed screws of Z-axis Mork Co., Ltd. that enable vertical (vertical) movement.
（２）は被加工物（１）の両面に相対するよう設けられ
たコ字状の電極支持枠で、この支持枠（至）上において
ワイヤ電極（６）は水平に、すなわち被加工物（１）に
対し直角に走行するように張設されている。電極支持枠
（２）は摺動案内部（社）がＹ軸モータ（イ）によって
駆動される送りネジ（５）により螺合されており、これ
によって電極支持枠（２）はＹ軸方向に移動可能である
。したがって、ワイヤ電ｍ （６）をその走行方向と平
行に移動させろ。(2) is a U-shaped electrode support frame provided to face both sides of the workpiece (1). On this support frame (top), the wire electrode (6) is placed horizontally, that is, the workpiece (1) is 1) It is stretched so that it runs at right angles to. The electrode support frame (2) has a sliding guide part (sha) which is screwed together by a feed screw (5) driven by a Y-axis motor (a), which allows the electrode support frame (2) to move in the Y-axis direction. It is movable. Therefore, move the wire m (6) parallel to its running direction.
（社）はワイヤｍ１（６１の供給ローラで、（イ）はワ
イヤ電極（６）の巻取りローラであり、いずれも電極支
持枠（至）上に回転自在に支持されている。また、ワイ
ヤ電極（６）は供給ローラ（社）よりガイドローラ（ｊ
及びワイヤガイドＣυを順次経て被加工物（１）を押通
し、さらに反対側のワイヤガイド（支）及びガイドロー
ラ圓を順次経て巻取りローラ（イ）に至るように張設さ
れている。そして、少なくともいずれか一方のワイヤガ
イド、図示の場合右側のワイヤガイド０ＤがＸ軸モーク
（ロ）により駆動されるネジ棒（支）により被加工物（
１）に近接可能に電極支持枠い９に設けられている。（
イ）はこれらＸ軸、Ｙ軸及びＺ軸モータ（ロ）（イ）（
至）をそれぞれ制御する制御装置である。（９）は衝撃
子で、電極支持枠（至）の左側ワイヤガイド（支）の下
方に取り付けられており、図示しないシリンダ装置等に
より被加工物（１）の中子０４１に対し突出しこれに衝
撃を加えて輪郭放電加工完結直前の中子側を被加工物（
１）より切断分離する。（至）は衝撃子（資）の反対側
に位置するハンドで、電極支持枠（至）とは別個に設け
られ被加工物（１）より突出させられた中子Ｑ４１を把
持し被加工物（１）より完全に取出す役目を果すもので
ある。なお、ハンド（支）の駆動装置は図示されていな
いが通常の歯車或いは流体圧等による把持機構が用いら
れろ。（イ）は加工槽（イ）内に設けられた中子側の集
積部である。Co., Ltd. is a supply roller for the wire m1 (61), and (a) is a winding roller for the wire electrode (6), both of which are rotatably supported on the electrode support frame. The electrode (6) is moved from the supply roller to the guide roller (j
and the wire guide Cυ in order to push the workpiece (1) through it, and then sequentially pass through the wire guide (support) and guide roller circle on the opposite side to reach the winding roller (a). At least one of the wire guides, in the case shown, the right wire guide 0D, is connected to the workpiece by a threaded rod (support) driven by the X-axis moke (b).
1) is provided on the electrode support frame 9 so as to be accessible. (
A) are these X-axis, Y-axis and Z-axis motors (B) (B) (
(to)). (9) is an impactor, which is attached below the left wire guide (support) of the electrode support frame (to), and is projected to the core 041 of the workpiece (1) by a cylinder device (not shown), etc. An impact is applied to the core side of the workpiece (
1) Cut and separate. (to) is a hand located on the opposite side of the impactor (to), which grips the core Q41, which is provided separately from the electrode support frame (to) and protrudes from the workpiece (1). (1) It plays the role of more complete extraction. Note that although the drive device for the hand (support) is not shown in the drawings, an ordinary gripping mechanism using gears or fluid pressure may be used. (A) is a core-side accumulation section provided in the processing tank (A).
次に、上記実施例の動作を説明する。Next, the operation of the above embodiment will be explained.
ワイヤ電極（６）は電極支持枠（２）により水平に走行
するよう支持されており、一方被加工物（１）は加工テ
ーブル■上において垂直に支持されているので、加工テ
ーブル■をＺ軸モータ（社）によって上下方向（Ｚ軸方
向）に、また電極支持枠（２）をＹ軸モーク■によって
前後方向くＹ軸方向）にそれぞれ移動を制御すれば、被
加工物（１）に対し垂直面内の放電加工が可能で中子側
の輪郭ＩＩｉ電加工完結位置を加工軌跡側の上部位置に
もってくることができる。The wire electrode (6) is supported to run horizontally by the electrode support frame (2), while the workpiece (1) is supported vertically on the processing table ■, so the processing table ■ is rotated along the Z axis. If the movement of the electrode support frame (2) is controlled in the vertical direction (Z-axis direction) by the motor and in the front-back direction (Y-axis direction) by the Y-axis moke ■, the workpiece (1) can be moved Electric discharge machining in the vertical plane is possible, and the contour IIi electric machining completion position on the core side can be brought to the upper position on the machining trajectory side.
そして、中子α４の輪郭放電加工完結位置の直前位置に
おいて僅かに加工残し部があるときに衝撃子（資）を突
出させ上記加工残し部を切断し中子側を被加工物ｆｌ）
より分離する。このように分離された中子α滲はその突
出部をハンド（支）によって把持され被加工物（１）よ
り完全に抜き取られる。抜き取られた中子α４；よ集積
部（イ）内に集積されろ。Then, when there is a slight unmachined part at the position just before the contour electric discharge machining completion position of the core α4, the impactor (material) is projected to cut the unmachined part and the core side is turned into the workpiece (fl).
Separate more. The protruding portion of the core α separated in this way is grasped by a hand (support) and completely extracted from the workpiece (1). The extracted core α4 should be accumulated in the accumulation part (a).
なお、中子を取出す手段としては上記のようにハンドに
よるほか汎用ロボットを使用してもよい。In addition to the above-mentioned hand, a general-purpose robot may be used as the means for removing the core.
また、ワイヤ電極を自動的に加工開始穴に挿入する装置
を電極支持枠に付加することにより連続加工が可能にな
る。中子の集積部は加工槽の外部に設けることもできる
。Continuous processing is also possible by adding a device to the electrode support frame that automatically inserts the wire electrode into the processing start hole. The core accumulation section can also be provided outside the processing tank.
本発明によれば次のような効果がある。 According to the present invention, there are the following effects.
（１）被加工物を垂直に支持し、一方ワイヤ電極を水平
に走行するよう支持したので、輪郭放電加工終了後にお
いて中子がワイヤ電極に接触することがない。(1) Since the workpiece is supported vertically and the wire electrode is supported so as to run horizontally, the core does not come into contact with the wire electrode after the contour electric discharge machining is completed.
（２）シたがって、輪郭放電加工の完結前において衝撃
子により中子を被加工物よゆ切断分離させ、その分離し
た中子をハンドにて取出すようにしたので、輪郭放電加
工を仕上げ加工に至るまで全自動にて行うことができる
。(2) Therefore, before the completion of contour electric discharge machining, the core is cut and separated from the workpiece by an impactor, and the separated core is taken out by hand, so that contour electric discharge machining can be finished. This can be done fully automatically.
第１図Ｉ′ｉ本発明の実施例の概略構成を示す斜視図、
第２図は同正面図、第３図は従来のワイヤ放電加工装置
の概略構成を示す斜視図、第４図は被加工物の輪郭放電
加工の最終状態を示す説明図、第５図及び第６図は中子
の落下時の状況を示す説明図である。
（１）二被加工物、（６）： ワイヤ電極、０４Ｊ：
中子、■：加エテーブル （２４）ｌ極支持枠、Ｃ１１
ｌ（支）：ワイヤガイド、＠： 衝撃子、（至）： ハ
ンド。
なお、図中、同一符号は同一、又は相当部分を示す。FIG. 1 I′i is a perspective view showing a schematic configuration of an embodiment of the present invention;
FIG. 2 is a front view of the same, FIG. 3 is a perspective view showing a schematic configuration of a conventional wire electrical discharge machining device, FIG. 4 is an explanatory diagram showing the final state of contour electrical discharge machining of a workpiece, and FIGS. FIG. 6 is an explanatory diagram showing the situation when the core falls. (1) Two workpieces, (6): Wire electrode, 04J:
Core, ■: Machining table (24) L pole support frame, C11
l (support): wire guide, @: impactor, (to): hand. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
工テーブルと、ワイヤ電極を水平に走行させかつワイヤ
電極の走行方向と平行に移動可能で、少なくとも一方の
ワイヤガイドを被加工物に対し近接可能に設けられた電
極支持枠と、輪郭放電加工の完結前において中子に衝撃
力を加えてこれを被加工物より分離させる衝撃子と、こ
の分離された中子を把持するハンドとを具備してなるこ
とを特徴とするワイヤ放電加工装置。A processing table that vertically supports a workpiece and is installed to be movable up and down, a wire electrode that runs horizontally and is movable parallel to the running direction of the wire electrode, and at least one wire guide that is attached to the workpiece. On the other hand, an electrode support frame that can be approached, an impactor that applies an impact force to the core to separate it from the workpiece before completion of contour electrical discharge machining, and a hand that grips the separated core. A wire electrical discharge machining device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10495486A JPS62264825A (en) | 1986-05-09 | 1986-05-09 | Wire electric discharge machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10495486A JPS62264825A (en) | 1986-05-09 | 1986-05-09 | Wire electric discharge machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62264825A true JPS62264825A (en) | 1987-11-17 |
Family
ID=14394484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10495486A Pending JPS62264825A (en) | 1986-05-09 | 1986-05-09 | Wire electric discharge machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62264825A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004883A (en) * | 1989-10-04 | 1991-04-02 | Calcor Space Facility, Inc. | Method of fabricating plural shaped parts from a workpiece |
| JPH0655354A (en) * | 1992-08-05 | 1994-03-01 | Mitsubishi Electric Corp | Wire electric discharge machining method |
| US10632554B2 (en) | 2017-04-28 | 2020-04-28 | Fanuc Corporation | Wire electrical discharge machine, wire electrical discharge machining system and jig |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127626A (en) * | 1981-01-27 | 1982-08-07 | Inoue Japax Res Inc | Electric discharge cutting system with wire electrode |
| JPS5937019A (en) * | 1982-08-23 | 1984-02-29 | Mitsubishi Electric Corp | Wire-cut discharge machining |
-
1986
- 1986-05-09 JP JP10495486A patent/JPS62264825A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127626A (en) * | 1981-01-27 | 1982-08-07 | Inoue Japax Res Inc | Electric discharge cutting system with wire electrode |
| JPS5937019A (en) * | 1982-08-23 | 1984-02-29 | Mitsubishi Electric Corp | Wire-cut discharge machining |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5004883A (en) * | 1989-10-04 | 1991-04-02 | Calcor Space Facility, Inc. | Method of fabricating plural shaped parts from a workpiece |
| JPH0655354A (en) * | 1992-08-05 | 1994-03-01 | Mitsubishi Electric Corp | Wire electric discharge machining method |
| US10632554B2 (en) | 2017-04-28 | 2020-04-28 | Fanuc Corporation | Wire electrical discharge machine, wire electrical discharge machining system and jig |
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