JPS6357123A - Wire electric discharge machine - Google Patents

Wire electric discharge machine

Info

Publication number
JPS6357123A
JPS6357123A JP19737686A JP19737686A JPS6357123A JP S6357123 A JPS6357123 A JP S6357123A JP 19737686 A JP19737686 A JP 19737686A JP 19737686 A JP19737686 A JP 19737686A JP S6357123 A JPS6357123 A JP S6357123A
Authority
JP
Japan
Prior art keywords
workpiece
machining
main shaft
amount
machining liquid
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
Application number
JP19737686A
Other languages
Japanese (ja)
Inventor
Isao Tominaga
富永 勲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19737686A priority Critical patent/JPS6357123A/en
Publication of JPS6357123A publication Critical patent/JPS6357123A/en
Pending legal-status Critical Current

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  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

PURPOSE:To machine a workpiece, changed in a board thickness, under an optimum condition, by a method wherein a position detector is situated on a body main shaft, and by means of a detecting signal therefrom, a machining liquid regulating valve is automatically regulated according to the board thickness of a workpiece to regulate an amount of fed machining liquid. CONSTITUTION:From a position detector 21 connected to a main shaft 14, an electric signal responding to a vertical displacement amount of the main shaft 14 is outputted, and the signal is transmitted to a data bank 24. According to a command from the data bank 24, a flow rate of machining liquid optimum to a displacement amount of an upper nozzle 7 occurring along with movement of the main shaft 14 is transmitted to a motor valve 23, the liquid amount regulating valve of the valve 23 is controlled, and a machining liquid amount is regulated to an optimum value responding to a change in the board thickness of a workpiece 16a. This constitution enables prevention of the influence exercised on the machining speed and shape precision of the workpiece 16a by a machining liquid amount and a pressure, and permits execution of ideal machining.

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し、さらに詳しくは
加工液2の自動:A節装置を備えたワイヤ放逍加工装置
に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a wire electric discharge machining apparatus, and more particularly to a wire electric discharge machining apparatus equipped with an automatic:A section device for machining fluid 2.

〔従来の技術〕[Conventional technology]

ワイヤ族”ELDJ工怖置は装機械本体、電源、制傷装
置、加工液供給装置を1組として構成し、機械本体のテ
ーブル上に被加工物を取付け、電極ワイヤと被加工物と
の間に電圧を印加することによシワイヤ放電加工装置全
体の作動を制御しながら被加工物を加工するものである
The wire group ELDJ machine consists of a machine body, a power source, a scratch control device, and a processing fluid supply device as a set.The workpiece is mounted on the table of the machine body, and the wire is connected between the electrode wire and the workpiece The workpiece is machined while controlling the operation of the entire shear electric discharge machining apparatus by applying a voltage to the shear electric discharge machining apparatus.

第2図は従来のワイヤ放電加工装置の一例と示す一部を
断面で示した側面図である。図において、(1)はベッ
ド、(2)はベッド(1)の上部に設けられ、ワイヤ送
給装置を収容したコラム、(3)はベッドtl)とコラ
ム(2)の間に設けられ、コラム(2)を往復運動させ
る駆動装置である。(4)は電極ワイヤ、(5)は電極
ワイヤ(4)全巻回するボビン、(6)は電極ワイヤ(
4)に案内する複数のガイドローラである。(7)は上
部ノズル、(8)は下部ノズル、(9)は一端がコラム
(2)に取り付けられ、他端で下部ノズル(8)全支持
する支持アーム、αω、αυは互いに圧接するように配
置された電極ワイヤ(4)の巻上ローラとピンチローラ
、0!Jは′@瘉ワイヤ(4)の回収ケースである。(
1階はコラム(2)の自由端部に取り付けられた駆動モ
ータ、1141は駆動モータ0yによってZ軸方向に昇
降される主軸、α9は主軸αルの下部に設けられ、下方
に上部ノズル(7)が取り付けられた加工用のアタッチ
メントである。αeは被加工物、C17)は被加工物α
Qを着脱自在に固定する加工用テーブル、asv−i加
工用テーブルα乃と一体に構成された加工付、α1はベ
ッド(1)上に取シ付けられ、加工槽0秒を載置したN
Cテーブルを内蔵しfcNCテーブル(数値制御テーブ
ル)である。
FIG. 2 is a partially sectional side view showing an example of a conventional wire electrical discharge machining apparatus. In the figure, (1) is a bed, (2) is a column provided above the bed (1) and accommodates a wire feeding device, (3) is provided between the bed (tl) and the column (2), This is a drive device that reciprocates the column (2). (4) is the electrode wire, (5) is the electrode wire (4) is fully wound on the bobbin, (6) is the electrode wire (
4) A plurality of guide rollers that guide the (7) is the upper nozzle, (8) is the lower nozzle, (9) is a support arm whose one end is attached to the column (2) and the other end fully supports the lower nozzle (8), αω and αυ are in pressure contact with each other. The winding roller and pinch roller of the electrode wire (4) located at 0! J is the collection case of '@ka wire (4). (
The first floor is a drive motor attached to the free end of the column (2), 1141 is the main shaft that is raised and lowered in the Z-axis direction by the drive motor 0y, α9 is provided at the bottom of the main shaft α, and the upper nozzle (7 ) is a processing attachment attached to it. αe is the workpiece, C17) is the workpiece α
A processing table that removably fixes the Q, a processing table that is integrated with the asv-i processing table α, α1 is installed on the bed (1), and the N on which the processing tank 0 seconds is placed.
It has a built-in C table and is an fcNC table (numerical control table).

上記のように構成し几ワイヤ放電加工装置においては、
ボビン(5)から一定速度で送シ出され念電極ワイヤ(
4)は上部ノズル(7)から被加工物αi−貫通して下
Wノズル(8)によってテンションが掛けられ、春上ロ
ーラ(ICトピンチローラαυにより回収ケースα2に
送シ出される。このとき、被加工物αeとV!極クワイ
ヤ4)との間には所定の間隙が保持され、この間隙に加
工液全介在させてvL極クワイヤ4)と被加工物αGと
の間に電圧全印加し、NCテープ/l/(I9にあらか
じめ設定したプログラムに従って力ロエテーブルαne
wt加工物αG)kX−Y方向に移動させることによシ
、被加工物ati’を所望の形状に加工する。
In the wire electrical discharge machining device configured as above,
The magnetic electrode wire (
4) passes through the workpiece αi from the upper nozzle (7), is tensioned by the lower W nozzle (8), and is sent to the collection case α2 by the spring upper roller (IC top pinch roller αυ). A predetermined gap is maintained between the workpiece αe and the V! pole choir 4), and a full voltage is applied between the vL pole choir 4) and the workpiece αG with the machining liquid completely interposed in this gap, NC tape/l/(Loe table αne) according to the program set in advance on I9
wt workpiece αG) k By moving the workpiece ati' in the X-Y direction, the workpiece ati' is processed into a desired shape.

ところで、ワイヤ放電に供される被加工物aのは、通常
第2ズに示すように、平面プレートが主であるが、部品
の直接加工全考慮した場合も含めて厚み方向の変化があ
るものを加工する場合も少なく力い。この場合は第3図
に示すように、上部ノズル(7)が被加工物(16a)
に接触して衝突するのを避けるため、当初上部ノズル(
7)全被加工物(16a)の最上端(16b)に適切僅
少な隙間金保って位置させる。そして上部ノズル(7)
はこの位置から被加工物(16a)を加工しながら右方
■に水平に移動するが、このよう々移動では上部ノズル
(7)と段差の・ある被加工物(16a)との間には空
間部aが発生することになる。
By the way, the workpiece a to be subjected to wire electric discharge is usually a flat plate as shown in the second item, but there are also workpieces that have changes in the thickness direction, including when considering the direct machining of parts. It requires less force when machining. In this case, as shown in Fig. 3, the upper nozzle (7) is connected to the workpiece (16a).
Initially, the upper nozzle (
7) Position the top end (16b) of all workpieces (16a) with an appropriate small clearance. and the upper nozzle (7)
moves horizontally to the right from this position while processing the workpiece (16a), but in such a movement, there is no space between the upper nozzle (7) and the workpiece (16a) with a step. A space a will be generated.

このため、加工液は空間部aの増大に伴って周辺て流出
し、加工チップ排除のための本来の圧力が初期設定値通
りに被加工物(16a)の加工部に均等に及ばなくなり
、加工チップの排出が悪化する。
For this reason, the machining fluid flows out around the periphery as the space a increases, and the original pressure for removing machining chips does not evenly apply to the machining part of the workpiece (16a) as per the initial setting value, resulting in machining. Chip ejection worsens.

ま之加工液の流れに沿って周辺より空気の巻き込みが発
生し、放電現象に悪影響を及ぼすおそれがある。さらに
高速加工の場合には加工液が多重に必要であるが、上記
のように加工液圧が不均一になると加工液圧による加工
形状精度への影響も大きい。このような問題を解決する
ため、従来は第4図に示すように、上部ノズル(7)を
矢印@方向に移動させるとともに、上下方向(Z@方向
)に駆動して、上下ノズル間のスパン(加工板厚)を変
化させたシ、加工技術に工夫を7JOえる等の方法がお
こなわれていた。
Air may be drawn in from the surrounding area along the flow of the machining fluid, which may have a negative effect on the discharge phenomenon. Furthermore, in the case of high-speed machining, multiple machining fluids are required, and if the machining fluid pressure becomes uneven as described above, the influence of the machining fluid pressure on the machining shape accuracy is significant. In order to solve such problems, conventionally, as shown in Fig. 4, the upper nozzle (7) is moved in the direction of the arrow @ and driven in the vertical direction (Z@ direction) to reduce the span between the upper and lower nozzles. Methods such as changing the processed plate thickness and adding 7JO ingenuity to the processing technology were used.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

しかしながら、上記の方法では、加工液2及び圧力の変
化が上部ノズルの上下方向の移動に追従せず、被加工物
の最適加工には依然として問題があった。
However, in the above method, changes in the machining fluid 2 and pressure do not follow the vertical movement of the upper nozzle, and there is still a problem in optimal machining of the workpiece.

本発明は上記のような問題点を解決するためになされた
もので、加工液の流量を板厚の変化に対応して自動調整
し、板厚変化を有する被加工物を最適条件下で加工する
ことのできるワイヤ放電加工装萱に得ることを目的とす
る。
The present invention was made to solve the above-mentioned problems, and it automatically adjusts the flow rate of machining fluid in accordance with changes in plate thickness, and processes workpieces with changes in plate thickness under optimal conditions. The purpose is to obtain wire electrical discharge machining equipment that can be used.

〔問題点?解決する念めの手段〕〔problem? A precautionary measure to resolve the issue]

本発明は上記の目的を達成するためにユされtもので、
被加工物の板厚変化に対応して妄位する主軸の変位it
全検出、この変位量に対応して加工液息ヲ最適流量に自
動M整するようVこしtワイヤ放電加工装置を提供する
ものである。
The present invention has been made to achieve the above objects, and
Displacement of the main shaft that changes in response to changes in the thickness of the workpiece
The present invention provides a V-type wire electrical discharge machining apparatus that automatically adjusts the flow rate of machining fluid to the optimum flow rate in response to the total amount of displacement detected.

〔作 用〕[For production]

板厚の変化に対応して変位する主軸の変位量全検出し、
この検出信号により加工液の供給ff1k自動買整する
Detects the entire amount of displacement of the main shaft that moves in response to changes in plate thickness,
Based on this detection signal, the machining fluid supply ff1k is automatically purchased.

〔実施例〕〔Example〕

第1図は本発明の実施例全示す原理的説明図である。々
お、第2図の装置と同−又は相当部分には同じ符号を付
し、説明を省略する。■は駆動モータ03に連結し之送
シネジで、主軸(14ヲ介して上部ノズル(力を上下動
させるようになっている。
FIG. 1 is a principle explanatory diagram showing all embodiments of the present invention. Components that are the same as or equivalent to those in the device shown in FIG. 2 are designated by the same reference numerals, and their explanation will be omitted. (2) is a feed screw connected to the drive motor 03, and the upper nozzle (force is moved up and down) via the main shaft (14).

(21)は主軸0.1)に連接した差動変圧器のような
位置検出器である。(22)は加工液配管、(23)は
加工液配管(22)に挿入され之モータパルプである。
(21) is a position detector such as a differential transformer connected to the main shaft 0.1). (22) is a machining liquid pipe, and (23) is a motor pulp inserted into the machining liquid pipe (22).

(24)は上下ノズル間のスパン(被加工物の厚さ)に
対して最適な加工液流量を記憶させたデータバンクで、
このデータバンク(24)には、第3図に示すような板
厚変化のある被加工物(16a)ンこついて、あらかじ
め板厚変化に応じた加工液の最適加工条件を記憶させて
おくと共に、上部ノズル(刀を板厚に対応して上下動し
うる:うなプログラムが設定されている。また(25)
は位置検出器(21)とモータバルブ(26)をデータ
バンク(24)を介して接続する信号線である。(26
) 、 (27)は上部ノズル(力および下部ノズル(
8)へ供給される加工液の液母を側々に微調整するため
、加工液配管(22)に設けられた調整バルブ、(28
)は加工液供給装置f、(29)は加工に供され之加工
液を加工槽08)から加工液供給装置(28)に戻す配
管、(60)は加工液供給ポンプである。
(24) is a data bank that stores the optimal machining fluid flow rate for the span between the upper and lower nozzles (thickness of the workpiece).
In this data bank (24), a workpiece (16a) with a change in plate thickness as shown in Fig. 3 is stored, and the optimum machining conditions of the machining fluid according to the change in plate thickness are stored in advance. , the upper nozzle (the sword can be moved up and down according to the thickness of the board: a Una program is set. Also (25)
is a signal line connecting the position detector (21) and the motor valve (26) via the data bank (24). (26
), (27) is the force of the upper nozzle (force) and the lower nozzle (
In order to finely adjust the mother liquid of the machining fluid supplied to the machining fluid pipe (22), the adjustment valve (28) is provided in the machining fluid piping (22).
) is a machining fluid supply device f, (29) is a pipe for returning the machining fluid used for machining from the machining tank 08) to the machining fluid supply device (28), and (60) is a machining fluid supply pump.

上記のように構成した本発明の詳細な説明すれば次の通
シである。いま、主軸Iがデータバンク(24)に設定
したプログラムにしたがって上部ノズル(力と被加工物
(16a)との僅少;Zta間を保持するように上下方
向に移動すると、主軸α4に連接した位置検出器(21
)より主軸a荀の上下変位量に対応する電気信号が出力
され、この電気信号はデータバンク(24)に伝達され
る。このデータバンク(24)には、たとえば第1表に
示すように、被加工物(16a)の厚さに対して最適な
加工液の流量データテーブルが記憶されている。
A detailed explanation of the present invention configured as described above is as follows. Now, when the spindle I moves up and down to maintain the upper nozzle (a slight difference between the force and the workpiece (16a); Zta) according to the program set in the data bank (24), it will reach a position connected to the spindle α4. Detector (21
) outputs an electrical signal corresponding to the amount of vertical displacement of the main shaft a, and this electrical signal is transmitted to the data bank (24). In this data bank (24), for example, as shown in Table 1, a flow rate data table of the machining fluid that is optimal for the thickness of the workpiece (16a) is stored.

第1表 材   質 5KD−11 使用ワイヤ Bs  0.2 従って、主#1(I4の移動による上品ノズル(7)(
被加工物の厚さ)の変位量に対応した加工液流量がデー
タバンク(24)の指令によりモータバルブ(23)に
伝達され、モータバルブ(23)の水i調整弁全制御し
、被加工物(16a)の板厚変化に対応してプログラム
された加工条件にしたがい、加工液を最適加工液量に調
整する。
First surface material Quality 5KD-11 Wire used Bs 0.2 Therefore, main #1 (elegant nozzle (7) due to movement of I4) (
The machining fluid flow rate corresponding to the displacement amount of the workpiece (thickness) is transmitted to the motor valve (23) according to the command from the data bank (24), and the water adjustment valve of the motor valve (23) is fully controlled. The machining fluid is adjusted to the optimum amount of machining fluid in accordance with the machining conditions programmed in response to changes in the thickness of the object (16a).

〔発明の効果〕〔Effect of the invention〕

以上の説明から明らかなように本発明によれば、梃械本
体の主軸に位置検出器を設け、この検出信号によシ加工
液の調整弁を被加工物の板厚に応じて加工液2を自wJ
調整するようにしたので、被加工物の材質、板厚等の加
工条件に最適な液iを供給することができる。このため
従来問題とされていた加工液量及び圧力が被加工物の加
工速度、形状精度に及ばず影6を回避でき、理想的な加
工に行なうことができる。
As is clear from the above description, according to the present invention, a position detector is provided on the main shaft of the lever main body, and the processing fluid adjustment valve is controlled depending on the thickness of the workpiece based on this detection signal. My own wJ
Since the adjustment is made, it is possible to supply the liquid i that is most suitable for the processing conditions such as the material of the workpiece and the plate thickness. Therefore, the amount and pressure of machining fluid, which has been a problem in the past, does not reach the machining speed and shape accuracy of the workpiece, making it possible to avoid the shadow 6 and to perform ideal machining.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の実施例を示す原理的説明図、第2図は
従来のワイヤ放電加工装置の一例に示す側面図、第6図
及び第4図は従来の被加工物の加工方法の一例を示す説
明図である。 (4)・・・電極ワイヤ、(7)・・・上部ノズル、(
8)・・・下部ノズル、α4・・・主軸、(16a)・
・・被加工物、aの・・・加工用テーブル、(21)・
・・位置検出器、(23)・・・モータパルプ、(24
)・・・データバンク。 なお、各図中、同一符号は同−又は相当部分金示すもの
とする。 代理人 弁理士  佐 藤 正 年 第1図 第2図 4:電イ&ワイヤ 第3図    第。図
Fig. 1 is a principle explanatory diagram showing an embodiment of the present invention, Fig. 2 is a side view showing an example of a conventional wire electric discharge machining device, and Figs. It is an explanatory diagram showing an example. (4)... Electrode wire, (7)... Upper nozzle, (
8)... Lower nozzle, α4... Main shaft, (16a).
・Workpiece, a...Machining table, (21)・
...Position detector, (23) ...Motor pulp, (24
)...data bank. In each figure, the same reference numerals indicate the same or equivalent parts. Agent: Masashi Sato, Patent Attorney Figure 1, Figure 2, Figure 4: Electric & Wire, Figure 3. figure

Claims (1)

【特許請求の範囲】[Claims] (1)電極ワイヤと被加工物とを所定の放電間隔を保持
して対設し、この放電間隔に加工液を介在させた状態下
で前記電極ワイヤと被加工物間に電圧を印加して被加工
物の放電加工を行うワイヤ放電加工装置において、前記
被加工物の板厚変化に対応して変位する主軸の変位量を
検出し、この変位量に対応して加工液量を最適流量に自
動調整する装置を備えたことを特徴とするワイヤ放電加
工装置。
(1) An electrode wire and a workpiece are placed opposite each other with a predetermined discharge interval maintained, and a voltage is applied between the electrode wire and the workpiece with machining fluid interposed in this discharge interval. In a wire electrical discharge machining device that performs electrical discharge machining on a workpiece, the amount of displacement of the main shaft that is displaced in response to changes in the thickness of the workpiece is detected, and the amount of machining fluid is adjusted to the optimum flow rate in response to this amount of displacement. A wire electrical discharge machining device characterized by being equipped with an automatic adjustment device.
JP19737686A 1986-08-25 1986-08-25 Wire electric discharge machine Pending JPS6357123A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19737686A JPS6357123A (en) 1986-08-25 1986-08-25 Wire electric discharge machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19737686A JPS6357123A (en) 1986-08-25 1986-08-25 Wire electric discharge machine

Publications (1)

Publication Number Publication Date
JPS6357123A true JPS6357123A (en) 1988-03-11

Family

ID=16373475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19737686A Pending JPS6357123A (en) 1986-08-25 1986-08-25 Wire electric discharge machine

Country Status (1)

Country Link
JP (1) JPS6357123A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243166A (en) * 1991-12-02 1993-09-07 Mitsubishi Denki K.K. Wirecut electrical discharge machine and method of use thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5243166A (en) * 1991-12-02 1993-09-07 Mitsubishi Denki K.K. Wirecut electrical discharge machine and method of use thereof

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