JPH01205930A - Wire cutting and wire-cut electric discharge working machine - Google Patents
Wire cutting and wire-cut electric discharge working machineInfo
- Publication number
- JPH01205930A JPH01205930A JP2764688A JP2764688A JPH01205930A JP H01205930 A JPH01205930 A JP H01205930A JP 2764688 A JP2764688 A JP 2764688A JP 2764688 A JP2764688 A JP 2764688A JP H01205930 A JPH01205930 A JP H01205930A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- upper nozzle
- nozzle
- electric discharge
- cooling 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
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 27
- 239000000110 cooling liquid Substances 0.000 claims abstract description 18
- 238000003754 machining Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 12
- 239000002826 coolant Substances 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 5
- 238000009760 electrical discharge machining Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 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
この発明はワイヤカット放電加工機のワイヤ切断方法及
びこの方法を用いたワイヤ自動結線機構を備えたワイヤ
カット放電加工機に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a wire cutting method for a wire-cut electric discharge machine and a wire-cut electric discharge machine equipped with an automatic wire connection mechanism using this method.
従来技術
ワイヤ自動結線機構を備えたワイヤカット放電加工機で
は、一つの切扱き図形の切抜き加工が完了するとワイヤ
を切断し、ワークを移動して次の図形の加工開始孔を前
記切断されたワイヤの直下に位置させる。ついで、前記
ワイヤを繰りだしてワイヤ先端部を新たな加工開始孔、
下ガイド及びワイヤ送りベルトなどを介してフィードロ
ーラまで到達させ、ワイヤの自動結線作動を完了する構
成となっている。Conventional wire-cut electric discharge machines equipped with an automatic wire connection mechanism cut the wire when the cutting process of one figure to be cut is completed, move the workpiece, and connect the cut wire to the machining start hole of the next figure. Position it directly below. Then, the wire is fed out and the tip of the wire is inserted into a new machining start hole.
The wire is configured to reach the feed roller via a lower guide, a wire feed belt, etc., and complete the automatic wire connection operation.
また、ワイヤが断線した場合（はとんどがワークとの放
電個所で生じる）も、ワイヤの直下に位置される加工開
始孔が元のものである以外はワイヤの積極的な切断以降
、前記と同じ自動結線作動が行なわれる。In addition, even if the wire breaks (mostly occurs at the point of electrical discharge with the workpiece), the machining start hole located directly below the wire is the original one. The same automatic wiring operation is performed.
この場合、ワイヤの切断は従来、受は刃と移動刃を備え
たカッターの勇断によるものが多く、ワイヤの切断端に
は必ずパリが生じている（第４図口）。そのため、この
パリが邪魔になって、繰出したワイヤが加工開始孔や下
ガイドのガイド孔に通りにくく、ワイヤの自動結線が不
首尾に終わることがあった。In this case, conventionally, the wire is often cut by a cutter having a blade and a movable blade, and the cut end of the wire always has a burr (see Figure 4). As a result, the wire gets in the way, making it difficult for the fed wire to pass through the processing start hole and the guide hole of the lower guide, and automatic wire connection sometimes ends in failure.
特公昭５５−４６８０７号公報にはワイヤ自動結線に際
し、ワイヤをブレーキ装置とワークの間で恐らくジュー
ル熱により溶断する技術思想が開示されているが、この
ものは放電加工用の電源とは別に５Ｖ・１０Ａ程度の溶
断用電源を必要としている。Japanese Patent Publication No. 55-46807 discloses a technical concept in which the wire is probably fused by Joule heat between the brake device and the workpiece during automatic wire connection, but this method uses a 5V power source separate from the electric discharge machining power source. - Requires a power supply for fusing of approximately 10A.
発明が解決しようとする課題
この発明は、切断端にパリを生じず、また、別電源を準
備すること無く切断できるワイＡ７カツ１〜放電加工鏝
におけるワイヤ切断方法、及びその方法を実施する構造
を備えたワイヤカット放電加工機の提供を課題とする。Problems to be Solved by the Invention The present invention provides a wire cutting method using an electrical discharge machining trowel and a structure for carrying out the method. The objective is to provide a wire-cut electric discharge machine equipped with the following.
課題を解決するための手段
一ワイヤ切断方法−
ワイヤカット放電加工機において、ワイヤ切断指令に基
づき、ワイヤに対する放電加工電流及び加工時張力を維
持したまま、上ノズルに対する冷却液の供給を停止し、
ついで十ノズル内にエアを噴出する。Means for Solving the Problem - Wire Cutting Method - In a wire-cut electric discharge machine, based on a wire cutting command, the supply of cooling liquid to the upper nozzle is stopped while maintaining the electric discharge machining current and machining tension for the wire,
Next, air is blown out into the ten nozzles.
必要に応じ上ガイドとワーク間のワイヤをワーク側に牽
引する。If necessary, pull the wire between the upper guide and the work toward the work.
−ワイヤカット放電加工機−
上ノズルに対する冷却液の供給径路を上ガイド、下ノズ
ル及び下ガイドに対する冷却液の供給径路から分離する
。-Wire-cut electrical discharge machine- The coolant supply path for the upper nozzle is separated from the coolant supply path for the upper guide, lower nozzle, and lower guide.
上ノズル内部に高圧エア供給径路を接続する。Connect the high pressure air supply path inside the upper nozzle.
ワイヤ切断指令により上ノズルへの冷却液の供給を停止
した後上ノズル内にエアを噴出させる制御手段を備える
。A control means is provided for blowing air into the upper nozzle after stopping the supply of cooling liquid to the upper nozzle in response to a wire cutting command.
必要に応じ、上ノズルとワーク間に、ワイヤを挟持し下
方に移動する挟持具を設ける。If necessary, a clamping tool is provided between the upper nozzle and the workpiece to clamp the wire and move it downward.
作 用
上ノズルに対する冷却液の供給径路が上ガイド、下ノズ
ル及び下ガイドに対する冷却液供給径路と分離されてい
る構成は、放電加工中に冷却液の供給が必要な個所の内
、上ノズルのみ供給を中止することを可能にし、上ノズ
ル内へのエア噴出とともに上ノズルとワーク間のワイヤ
に対する冷ｎ１作用を遮断づる。The structure in which the coolant supply path to the nozzle is separated from the coolant supply path to the upper guide, lower nozzle, and lower guide for operation is that only the upper nozzle is required to be supplied with coolant during electrical discharge machining. This makes it possible to stop the supply, and as well as blowing air into the upper nozzle, it also cuts off the cold n1 effect on the wire between the upper nozzle and the workpiece.
ワイヤ切断■稈では、冷却作用が遮断されたワイヤ部分
（上ノズルとワーク間）に放電加工電流が流れ続け、こ
の部分がジュール熱により軟化づると共に維持されてい
る加工時張力により牽引される。Wire cutting - In the culm, the electric discharge machining current continues to flow through the wire part (between the upper nozzle and the workpiece) where the cooling effect is cut off, and this part softens due to Joule heat and is pulled by the tension maintained during machining.
実施例
第２図は本発明方法を採用したワイ【７力ツト放電加工
機の上ノズル１、下ノズル２の部分を示し、ワイヤ挟持
具３を備えている例である。Embodiment FIG. 2 shows an upper nozzle 1 and a lower nozzle 2 of a wire electric discharge machine employing the method of the present invention, and is an example in which a wire clamping tool 3 is provided.
上ノズル１、挟持具３はＺ軸装置４の一部であって、Ｚ
軸装置４は下ノズル２を先端に備えた下アーム５に対し
全体が上下に移動する。図は上方に移動した状態にある
。The upper nozzle 1 and the clamping tool 3 are part of the Z-axis device 4, and
The entire shaft device 4 moves up and down with respect to a lower arm 5 having a lower nozzle 2 at its tip. The figure has been moved upwards.
第１図に示すように、上ノズル１は内部に上ガイド６が
取り付けられ、内部は上ガイド６によって上部室７と下
部室８に区画されている。上部室７には内部に通電ロー
ラ９が配置され、また、冷却Ｉ（加工液）の流入管１０
、流出管１１が配置され、下部室８は下方が噴出孔１２
で形成されると共に側方に冷却液（加工液）供給管１３
と高圧エア供給管１４が接続されている。前記の冷却液
供給管１３は電磁弁１５を備えてワイヤカット放電加工
機における主供給径路１６から分離可能とされている。As shown in FIG. 1, an upper guide 6 is attached inside the upper nozzle 1, and the inside is divided into an upper chamber 7 and a lower chamber 8 by the upper guide 6. A current-carrying roller 9 is disposed inside the upper chamber 7, and an inflow pipe 10 for cooling I (processing fluid) is disposed inside the upper chamber 7.
, an outflow pipe 11 is arranged, and the lower chamber 8 has a spout hole 12 at the bottom.
A cooling liquid (processing liquid) supply pipe 13 is formed on the side.
A high pressure air supply pipe 14 is connected to the high pressure air supply pipe 14. The coolant supply pipe 13 is equipped with a solenoid valve 15 and can be separated from the main supply path 16 in the wire-cut electrical discharge machine.
また、高圧エア供給管１４は電磁弁１７を介してコンプ
レッ＋）−１８など高圧エア源に接続されている。Further, the high-pressure air supply pipe 14 is connected to a high-pressure air source such as a compressor (+)-18 via a solenoid valve 17.
挟持具３は水平アーム１９の先端に構成され、−このア
ーム１９は駆動ユニット２０（第３図に図示）下部に突
出した上下移動と回動が可能な操作軸２１の下端に取り
付けられている。挟持具３は第３図にも示すように、水
平アーム１９と一体の固定部２２及びこれに対向し前記
水平アーム２１に取り付けられているソレノイド２３で
駆動される可動部２４を備える。固定部２２と可動部２
４は上下に長く対向面の上部にゴムなどの弾力性に富む
クツション材２５を、下部に黄銅など導電性の挟持体２
６をそれぞれ対向して備えている。固定部２２と可動部
２４は通常離れた位置にあり、対向したクツション材２
５あるいは挟持体２６の間にワイＡ７Ｗが進入できる間
隔を取っている。The gripping tool 3 is constructed at the tip of a horizontal arm 19, which is attached to the lower end of an operating shaft 21 that protrudes from the bottom of the drive unit 20 (shown in FIG. 3) and is capable of vertical movement and rotation. . As shown in FIG. 3, the clamping tool 3 includes a fixed part 22 integral with the horizontal arm 19 and a movable part 24 facing the fixed part 22 and driven by a solenoid 23 attached to the horizontal arm 21. Fixed part 22 and movable part 2
4 has a cushion material 25 with high elasticity such as rubber on the upper part of the vertically long facing surface, and a conductive holding member 2 such as brass on the lower part.
6 facing each other. The fixed part 22 and the movable part 24 are usually located at separate positions, and the cushion material 2 facing each other
5 or the clamping body 26 so that the wire A7W can enter therebetween.
下ノズル２は上部が噴出孔２７で構成され、側部に冷Ｈ
１ａの流入管２８が接続され、さらに内部に下ガイド２
９が配置されている。The lower nozzle 2 has a jet hole 27 at the top and a cold H on the side.
1a is connected to the inflow pipe 28, and the lower guide 2 is connected inside.
9 is placed.
ワーク３０は上部ノズル１と下部ノズル２間に配置して
固定され、ワーク３０と通電ローラ９は放電加工用電源
３１の両極に接続されている。また、挟持体２６とワー
ク３０は同極に接続される。The workpiece 30 is arranged and fixed between the upper nozzle 1 and the lower nozzle 2, and the workpiece 30 and the energizing roller 9 are connected to both poles of a power source 31 for electrical discharge machining. Further, the holding body 26 and the workpiece 30 are connected to the same polarity.
下ガイド２９の直下にはワイヤ送り用のベルト装置３２
の受入れ口が配置され、該ベルト３２の後端には図示し
ていないがフィードローラが配置されている。Directly below the lower guide 29 is a belt device 32 for feeding the wire.
A receiving opening is disposed therein, and a feed roller (not shown) is disposed at the rear end of the belt 32.
ワイヤＷは図示していない供給ロールからブレーキ〔１
−ラなどを経て通電ローラ９を経由し、上ガイド６を貫
通して一ヒノズル１からワーク３０に至り、ついで下ノ
ズル２、下ガイド２９からベルト装置３２を経てフィー
ドローラに至る。The wire W is connected to the brake [1] from a supply roll (not shown).
- through the energizing roller 9, through the upper guide 6, from the first nozzle 1 to the workpiece 30, and then from the lower nozzle 2 and the lower guide 29 to the belt device 32 to reach the feed roller.
符号３３はワイヤカット放電加Ｉｔｌが備えた制御装置
で、一つの図形の切扱き加工完了＋１ｊあるいは断線信
号の受信時に自動結線工程に移行し、必要な指令を発す
ることができるもので、ワイヤ切断指令を発し、７軸装
置４、電磁弁１５．１７及び挟持具３を駆動する駆動ユ
ニツ１へ２０を順次作動させることかできる、ワイヤ切
断に関する一つの制御手段を構成している。Reference numeral 33 is a control device included in the wire cutting electric discharge application Itl, which can shift to the automatic wire connection process and issue the necessary commands when the cutting process of one figure is completed + 1j or a wire breakage signal is received. It constitutes one control means for wire cutting, which is capable of issuing commands and sequentially operating the drive unit 1 20 that drives the 7-axis device 4, the electromagnetic valves 15, 17, and the clamping tool 3.
切扱き加工の完了に伴うワイヤ切断工程は次の通りであ
る。The wire cutting process upon completion of the handling process is as follows.
制御装置３３からの指令によりワーク３０の送りどワイ
ヤＷの送りが停止される。ついで、Ｚ軸装置４が上昇し
てワーク３０と上ノズル１の間隔を大きくし、そこに駆
動ユニット２０によって水平アーム１９が回動され、挟
持具３の固定部２２と可動部２４間にワイヤＷを位置さ
せる。この段階では未だワイヤＷに放電加工電流が供給
されているとともに上ノズル１の上部室７、下部室８及
び下ノズル２の内部には冷却液が供給され、かつ、ワイ
ヤに放電加工時に付与されている加工時張力が残存して
いる。In response to a command from the control device 33, the feeding of the workpiece 30 and the feeding of the wire W are stopped. Next, the Z-axis device 4 is raised to increase the distance between the workpiece 30 and the upper nozzle 1, and the horizontal arm 19 is rotated by the drive unit 20, and the wire is inserted between the fixed part 22 and the movable part 24 of the clamping tool 3. Position W. At this stage, the electric discharge machining current is still being supplied to the wire W, and cooling liquid is being supplied to the upper chamber 7, lower chamber 8 and lower nozzle 2 of the upper nozzle 1, and the cooling liquid is being applied to the wire during electric discharge machining. During machining, tension remains.
続い−Ｃワイヤ切断指令が出されると電磁弁１５が閉じ
て電磁弁１７が開かれ、その後ソレノイド２３が駆動さ
れて挟持具３の可動部２４を固定部２２に引寄せ、挟持
体２６でワイ−７Ｗを挟み付けるとともに上部の対向間
隔をクツション材５で閉じ、さらに駆動ユニット２０に
より操作軸２１が押し下げられてワイヤＷが下方に牽引
される。このため、まず、上ノズル１からその下方のワ
イヤＷに供給されていた豊富な冷却液は途絶えるともに
上ノズル１から水滴の状態で落ちるものも、噴出する高
圧エアにより吹きとばされて、上ノズル１とワーク３０
間のワイｔ−Ｗに対する冷却作用が遮断される。すると
、この間のワイヤＷは放電加工電流（２０Ａ程度）によ
るジュール熱で軟化し溶断に近い状態となる。このとぎ
にワイヤＷに維持された張力が作用し、ワイヤＷが上ノ
ズル１とワーク３０の間でゆっくりと引かれて切１ｇｉ
される。Subsequently, when a C wire cutting command is issued, the solenoid valve 15 is closed and the solenoid valve 17 is opened, and then the solenoid 23 is driven to draw the movable part 24 of the clamping tool 3 to the fixed part 22, and the clamping body 26 pulls the wire. -7W is sandwiched and the upper opposing gap is closed with the cushion material 5, and the drive unit 20 further pushes down the operating shaft 21 and pulls the wire W downward. For this reason, first, the abundant cooling liquid that was being supplied from the upper nozzle 1 to the wire W below it is cut off, and the water that falls from the upper nozzle 1 in the form of water droplets is blown away by the jetting high-pressure air and Nozzle 1 and workpiece 30
The cooling effect on the width t-W between the two is cut off. Then, the wire W during this period is softened by Joule heat due to the electric discharge machining current (about 20 A) and is in a state close to melting. At this point, a maintained tension is applied to the wire W, and the wire W is slowly pulled between the upper nozzle 1 and the workpiece 30 to make a cut of 1 gi.
be done.
挟持具３は伝い落ちる水滴が加熱中のワイヤＷに到達す
るのを上部のクツション材２５で阻止して前記の作動を
確実にするとともに加熱されたワイヤＷを挟持体２６で
挟んでＭＩ＆的に下方へ牽引し、ワイヤの切断を促進す
る。また、挟持体２６は放電加工用電源３１の一方の確
実な電極となり、通電ローラ９と該挟持体２６間のワイ
ヤＷへ確実に放電電流が印加される。The clamping tool 3 prevents falling water droplets from reaching the heated wire W with the upper cushion material 25 to ensure the above-mentioned operation, and also clamps the heated wire W with the clamping body 26 to perform MI&. Pull downward to facilitate cutting of the wire. Further, the clamping body 26 serves as one reliable electrode of the electrical discharge machining power supply 31, and a discharge current is reliably applied to the wire W between the current-carrying roller 9 and the clamping body 26.
以上のように、本発明においてワイヤＷを切断する原理
的な方法は、放電加工電流及び加工時張力を維持しなが
らワイヤに対する冷却作用を停止することである。した
がって、前記の切抜き加工完了に基づく指令でワイヤが
切断される場合は、ワイヤに放電加工電流と十分な張力
が付与された状態にあるから前記の挟持具３は必ずしも
必要では無い。As described above, the principle method of cutting the wire W in the present invention is to stop the cooling action on the wire while maintaining the electrical discharge machining current and machining tension. Therefore, when the wire is cut in response to a command based on the completion of the cutting process, the clamping tool 3 is not necessarily required since the wire is in a state where the electric discharge machining current and sufficient tension are applied.
挟持具３を用いない場合、切断時においてもワイヤＷと
ワーク３０間で放電が発生しているが、冷却液の供給が
停止されるのは上ノズル１の下部室８だけであるから、
ワーク３０の個所は下ノズル２からの冷却液が供給され
ており、ワイヤＷが過熱してワーク３０に溶着してしま
うなどの支障は生じ無い。上ノズル１の上部室７の通電
Ｏ−ラ９付近においても同じである。When the clamping tool 3 is not used, electric discharge occurs between the wire W and the workpiece 30 even during cutting, but the supply of cooling liquid is only stopped to the lower chamber 8 of the upper nozzle 1.
The part of the workpiece 30 is supplied with the cooling liquid from the lower nozzle 2, so that problems such as the wire W being overheated and welded to the workpiece 30 do not occur. The same applies to the vicinity of the energizing O-ra 9 in the upper chamber 7 of the upper nozzle 1.
断線信号に伴うワイヤＷの自動結線■稈では、まずＺ＠
装置４がト昇してワーク３０との間隔を取り、その間隔
に退避されていた挟持具３が移動されて前記と同じ作動
となるのであるが、この場合は断線により放電加工電流
及び張力ともに消失しているから挟持具３が必須である
。Automatic connection of wire W in response to disconnection signal ■In the culm, first Z@
The device 4 rises to create a space between it and the workpiece 30, and the clamping tool 3, which had been evacuated to that space, is moved and operates in the same manner as described above, but in this case, both the electrical discharge machining current and tension are reduced due to the wire breakage. Since it has disappeared, the clamping tool 3 is essential.
このようにして切断されたワイヤＷの先端部は第４図（
イ）のように熱伸びの作用と牽引力により曲りが矯正さ
れて真直ぐであると共に、先端は徐々に、かつ、滑かに
細くなっている。The tip of the wire W cut in this way is shown in Figure 4 (
As shown in (a), the bend is corrected by the action of thermal elongation and traction force, making it straight, and the tip gradually and smoothly tapers.
ワイヤＷが切断されると電磁弁１７が閉じられると共に
、切断されたワイヤの下ノズル２側はベルト装置３２、
フィードローラでワイヤ回収箱にｌｊ［出され、挟持具
３はソレノイド２３の付勢を解いてワイヤＷを開放し、
ワイヤ位置から退避する。When the wire W is cut, the solenoid valve 17 is closed, and the lower nozzle 2 side of the cut wire is connected to the belt device 32,
The feed roller takes out the wire to the wire collection box, and the clamping tool 3 releases the energization of the solenoid 23 and releases the wire W.
Evacuate the wire position.
］るとこれを信号として制御装置３３は結線作動を指令
し、自動結線ｔｉ構が従来と同様に作動する。] Then, using this as a signal, the control device 33 instructs the wire connection operation, and the automatic wire connection structure operates in the same manner as before.
すなわち、Ｚ軸装置４が下降し、上ノズル１側のワイヤ
Ｗが繰り出される。繰り出されたワイヤ光幅：はワーク
３０の加工開始孔、下ノズル２、下ガイド２９を通過し
てベルト装置３２に至り、これに搬送されてフィードロ
ーラに達し、ワイヤの結線が完了する。この自動結線工
程及び手段は公知のものを採用することができる。That is, the Z-axis device 4 descends, and the wire W on the upper nozzle 1 side is let out. The unwound wire passes through the processing start hole of the workpiece 30, the lower nozzle 2, and the lower guide 29, reaches the belt device 32, is conveyed by this, and reaches the feed roller, and the wire connection is completed. Known automatic wire connection steps and means can be used.
発明の効果
切断されたワイヤ先端部が真直ぐで鋭いから、ワークの
加工開始孔、下ガイドのガイド孔などへの進入が滑かで
自動結線がスムーズに行なわれる。Effects of the Invention Since the tip of the cut wire is straight and sharp, it can smoothly enter the machining start hole of the workpiece, the guide hole of the lower guide, etc., and automatic wire connection can be performed smoothly.
ワイヤの溶断に他の電源を必要とせず、かつ、加工時張
力を利用するので切断が確実である。No other power source is required to fuse the wire, and since tension is used during processing, cutting is reliable.
挟持具を用いることにより断線時の自動ワイヤ結線にも
利用することができる。By using a clamping tool, it can also be used for automatic wire connection in the event of wire breakage.
第１図は要部の構造を断面にて示す正面図、第２図は正
面図、第３図は要部の斜視図、第４図はワイヤ先端部の
斜視図。
１・・・上ノズル、２・・・下ノズル、３・・・ワイヤ
挟持具、４・・・Ｚ軸装置、５・・・下アーム、６・・
・上ガイド、７・・・上部室、８・・・下部室、９・・
・通電ローラ、１０・・・流入管、１１・・・流出管、
１２・・・噴出孔、１３・・・冷却液供給管、１４・・
・高圧エア供給管、１５・・・電磁弁、１６・・・主供
給径路、１７・・・電磁弁、１８・・・コンプレッサー
、１９・・・水平アーム、２０・・・駆動ユニツ］〜、
２１・・・操作軸、２２・・・固定部、２３・・・ソレ
ノイド、２４・・・可動部、２５・・・クツション材、
２６・・・挟持体、２７・・・噴出孔、２８・−・流入
管、２９・・・下ガイド、３０・・・ワーク、３１・・
・放電加工用電源、３２・・・ベルト装置、３３・・・
制御装置。
特許出願人 ファナック株式会社
第 ２ 図Fig. 1 is a front view showing the structure of the main part in cross section, Fig. 2 is a front view, Fig. 3 is a perspective view of the main part, and Fig. 4 is a perspective view of the tip of the wire. DESCRIPTION OF SYMBOLS 1... Upper nozzle, 2... Lower nozzle, 3... Wire clamping tool, 4... Z-axis device, 5... Lower arm, 6...
・Upper guide, 7... Upper chamber, 8... Lower chamber, 9...
・Electrification roller, 10... Inflow pipe, 11... Outflow pipe,
12...Blowout hole, 13...Cooling liquid supply pipe, 14...
・High pressure air supply pipe, 15... Solenoid valve, 16... Main supply path, 17... Solenoid valve, 18... Compressor, 19... Horizontal arm, 20... Drive unit] ~,
21... Operating shaft, 22... Fixed part, 23... Solenoid, 24... Movable part, 25... Cushion material,
26... Holding body, 27... Ejection hole, 28... Inflow pipe, 29... Lower guide, 30... Workpiece, 31...
・Power source for electrical discharge machining, 32... Belt device, 33...
Control device. Patent applicant: FANUC Corporation Figure 2
Claims (4)
令に基づき、ワイヤに対する放電加工電流及び加工時張
力を維持したまま、上ノズルに対する冷却液の供給を停
止し、ついで上ノズル内にエアを噴出する事を特徴とし
たワイヤ切断方法。(1) In a wire-cut electric discharge machine, based on a wire cutting command, the supply of coolant to the upper nozzle is stopped while maintaining the electric discharge machining current and tension during machining to the wire, and then air is jetted into the upper nozzle. A wire cutting method characterized by:
令に基づき、ワイヤに対する放電加工電流及び加工時張
力を維持したまま、上ノズルに対する冷却液の供給を停
止し、ついで上ノズル内にエアを噴出すると共に上ガイ
ドとワーク間のワイヤをワーク側に牽引することを特徴
としたワイヤ切断方法。(2) In a wire-cut electric discharge machine, based on a wire cutting command, the supply of coolant to the upper nozzle is stopped while maintaining the electric discharge machining current and tension during machining to the wire, and then air is jetted into the upper nozzle. A wire cutting method characterized by pulling the wire between the upper guide and the work toward the work.
下ノズル及び下ガイドに対する冷却液の供給径路から分
離するとともに、上ノズル内部に高圧エア供給径路を接
続し、ワイヤ切断指令により上ノズルへの冷却液の供給
を停止した後上ノズル内にエアを噴出させる制御手段を
備えていることを特徴としたワイヤカット放電加工機。(3) Guide the coolant supply path to the upper nozzle upward;
It is separated from the cooling liquid supply path for the lower nozzle and lower guide, and a high-pressure air supply path is connected inside the upper nozzle, and after the cooling liquid supply to the upper nozzle is stopped by a wire cutting command, air is introduced into the upper nozzle. A wire-cut electrical discharge machine characterized by being equipped with a control means for ejecting.
下ノズル及び下ガイドに対する冷却液の供給径路から分
離されており、上ノズル内部に高圧エア供給径路が接続
され、ワイヤ切断指令により上ノズルとワーク間のワイ
ヤを挟持する挟持具を備えると共に、ワイヤ切断指令に
より上ノズルへの冷却液の供給を停止した後上ノズル内
にエアを噴出させ、かつ、ワイヤ挟持具を下方に移動す
る制御手段を備えていることを特徴としたワイヤカット
放電加工機。(4) The cooling liquid supply path to the upper nozzle is an upper guide;
It is separated from the cooling liquid supply path for the lower nozzle and the lower guide, and has a high-pressure air supply path connected inside the upper nozzle, and is equipped with a clamping tool that clamps the wire between the upper nozzle and the workpiece in response to a wire cutting command. A wire-cut electric discharge machine characterized by having a control means for blowing air into the upper nozzle after stopping the supply of cooling liquid to the upper nozzle in response to a cutting command, and for moving a wire clamping tool downward. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2764688A JPH01205930A (en) | 1988-02-10 | 1988-02-10 | Wire cutting and wire-cut electric discharge working machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2764688A JPH01205930A (en) | 1988-02-10 | 1988-02-10 | Wire cutting and wire-cut electric discharge working machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01205930A true JPH01205930A (en) | 1989-08-18 |
Family
ID=12226689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2764688A Pending JPH01205930A (en) | 1988-02-10 | 1988-02-10 | Wire cutting and wire-cut electric discharge working machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01205930A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0248119A (en) * | 1988-08-08 | 1990-02-16 | Amada Co Ltd | Automatic connection method for wire cut electric spark machine |
| US5036174A (en) * | 1989-04-28 | 1991-07-30 | Mitsubishi Denki Kabushiki Kaisha | Wire electrode supplying apparatus for wire electric discharge machine |
| WO1992019409A1 (en) * | 1991-04-30 | 1992-11-12 | Fanuc Ltd | Wire electrode cutting device |
| WO2006041213A1 (en) * | 2004-10-13 | 2006-04-20 | Sodick Co., Ltd. | Automatic wire inserting apparatus |
| JP2015037813A (en) * | 2012-07-10 | 2015-02-26 | ファナック株式会社 | Wire electric discharge machine with machining power source switchable for wire cutting |
| CN107020425A (en) * | 2016-02-02 | 2017-08-08 | 阿杰·查米莱斯股份有限公司 | Wire electrode for electric spark silk etching machine wears the device of silk |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58202724A (en) * | 1982-05-06 | 1983-11-26 | Mitsubishi Electric Corp | Automatic feeder for wire electrode in wire-cut edm system |
| JPS61293726A (en) * | 1985-06-24 | 1986-12-24 | Amada Co Ltd | Wire cutting method and device therefor in wire cut electric discharge machine |
| JPS62130129A (en) * | 1985-11-27 | 1987-06-12 | Sodeitsuku:Kk | Wire electrode set device for wire cut electric discharge machining |
-
1988
- 1988-02-10 JP JP2764688A patent/JPH01205930A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58202724A (en) * | 1982-05-06 | 1983-11-26 | Mitsubishi Electric Corp | Automatic feeder for wire electrode in wire-cut edm system |
| JPS61293726A (en) * | 1985-06-24 | 1986-12-24 | Amada Co Ltd | Wire cutting method and device therefor in wire cut electric discharge machine |
| JPS62130129A (en) * | 1985-11-27 | 1987-06-12 | Sodeitsuku:Kk | Wire electrode set device for wire cut electric discharge machining |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0248119A (en) * | 1988-08-08 | 1990-02-16 | Amada Co Ltd | Automatic connection method for wire cut electric spark machine |
| US5036174A (en) * | 1989-04-28 | 1991-07-30 | Mitsubishi Denki Kabushiki Kaisha | Wire electrode supplying apparatus for wire electric discharge machine |
| WO1992019409A1 (en) * | 1991-04-30 | 1992-11-12 | Fanuc Ltd | Wire electrode cutting device |
| WO2006041213A1 (en) * | 2004-10-13 | 2006-04-20 | Sodick Co., Ltd. | Automatic wire inserting apparatus |
| JP2015037813A (en) * | 2012-07-10 | 2015-02-26 | ファナック株式会社 | Wire electric discharge machine with machining power source switchable for wire cutting |
| CN107020425A (en) * | 2016-02-02 | 2017-08-08 | 阿杰·查米莱斯股份有限公司 | Wire electrode for electric spark silk etching machine wears the device of silk |
| EP3202518A1 (en) * | 2016-02-02 | 2017-08-09 | Agie Charmilles SA | Device for threading the wire electrode of a wire erosion machine |
| US10421140B2 (en) | 2016-02-02 | 2019-09-24 | Agie Charmilles Sa | Device for threading the wire electrode of a wire electrical discharge erosion machine |
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