JPS6137047B2 - - Google Patents
Info
- Publication number
- JPS6137047B2 JPS6137047B2 JP7579779A JP7579779A JPS6137047B2 JP S6137047 B2 JPS6137047 B2 JP S6137047B2 JP 7579779 A JP7579779 A JP 7579779A JP 7579779 A JP7579779 A JP 7579779A JP S6137047 B2 JPS6137047 B2 JP S6137047B2
- Authority
- JP
- Japan
- Prior art keywords
- workpiece
- cut
- machining
- discharge machining
- holder
- 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.)
- Expired
Links
- 238000003754 machining Methods 0.000 claims description 62
- 238000000034 method Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000005520 cutting process Methods 0.000 claims description 8
- 238000009760 electrical discharge machining Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009763 wire-cut EDM Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
- B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
- B23H7/02—Wire-cutting
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Description
【発明の詳細な説明】
この発明は例えばワイヤカツト放電加工装置な
どにより被加工物を切断加工する方法に係り、特
に加工終了時被加工物が傾斜、落下することを防
止する方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of cutting a workpiece using, for example, a wire-cut electrical discharge machining device, and more particularly to a method of preventing the workpiece from tilting or falling at the end of machining.
第１図はこの種の加工をするワイヤカツト放電
加工装置を示したもので、図において、１はワイ
ヤ電極で、通常直径0.05〜0.3mm程度の金属線が
ワイヤ供給リール２から巻取リール３に一定速度
で巻取られている。４，５は上記ワイヤ電極１を
支持案内する上部ガイド、及び下部ガイド、６は
ワイヤ電極１と接触摺動する給電板、７は被加工
物、８は加工用電源で、ワイヤ電極１と被加工物
７との加工間隙で繰返し放電する加工電流を給電
板６を介して供給する。９は加工液ノズルで、加
工液供給装置１０から比抵抗が数万〜数十万Ω・
cm程度の加工液１１を上記加工間隙に供給してい
る。１２は被加工物７を保持固定するＸ―Ｙクロ
ステーブル、１３はこのＸ―Ｙクロステーブル１
２を動作させるＸ軸駆動モータ１４、Ｙ軸駆動モ
ータ１５に回転指令を与える数値制御装置で、こ
の制御装置１３の指令によつてワイヤ電極１と被
加工物７との相対位置や相対速度などが制御さ
れ、被加工物７に対し所望輪郭形状に切断加工、
抜き加工などが行なわれる。 Figure 1 shows a wire-cut electric discharge machining device that performs this type of machining. In the figure, 1 is a wire electrode, and a metal wire with a diameter of usually about 0.05 to 0.3 mm is transferred from a wire supply reel 2 to a take-up reel 3. It is wound at a constant speed. 4 and 5 are upper guides and lower guides that support and guide the wire electrode 1, 6 is a power supply plate that slides in contact with the wire electrode 1, 7 is a workpiece, and 8 is a processing power source that connects the wire electrode 1 and the workpiece. A machining current that is repeatedly discharged in the machining gap with the workpiece 7 is supplied via the power supply plate 6. 9 is a machining fluid nozzle, which has a specific resistance of tens of thousands to hundreds of thousands of ohms from the machining fluid supply device 10.
A machining liquid 11 of about cm is supplied to the machining gap. 12 is an X-Y cross table that holds and fixes the workpiece 7; 13 is this X-Y cross table 1;
This is a numerical control device that gives rotation commands to the X-axis drive motor 14 and Y-axis drive motor 15 that operate the wire electrode 1 and the workpiece 7. is controlled, the workpiece 7 is cut into a desired contour shape,
Punching etc. are performed.
第２図は被加工物の加工部分を詳細に示したも
ので、図において、第１図と同一符号は同一部分
を示し、７ａは被加工物７の加工間隙、７ｂは被
加工物７に形成された加工溝、９ａ，９ｂは上記
加工間隙７ａに加工液１１を供給する上部加工液
ノズル、及び下部加工液ノズルで、加工液１１を
集中させるために通常パイプ状になつている。１
６は上部アーム、１７は下部アームで、それぞれ
加工液ノズル９ａ，９ｂガイド４，５などを支持
している。 Figure 2 shows the machining part of the workpiece in detail. In the figure, the same symbols as in Figure 1 indicate the same parts, 7a is the machining gap of the workpiece 7, and 7b is the machining gap of the workpiece 7. The formed machining grooves 9a and 9b are an upper machining fluid nozzle and a lower machining fluid nozzle that supply the machining fluid 11 to the machining gap 7a, and are usually pipe-shaped in order to concentrate the machining fluid 11. 1
Reference numeral 6 represents an upper arm, and 17 represents a lower arm, which support the machining liquid nozzles 9a, 9b guides 4, 5, etc., respectively.
このように構成されたワイヤカツト放電加工装
置によつて被加工物を所望形状に加工し、この加
工がすすんで終了直前になると第３図に示すよう
に、切り離されて抜け落ちる方の被加工物７ｃ
（以下ポンチ状部材という）と、抜け落ちない方
の被加工物７ｄ（以下ダイ状部材という）との加
工残部が少なくなつて、この加工残部での支持力
だけではポンチ状部材７ｃの自重を支持できなく
なり、ポンチ状部材７ｃが傾いた状態になる。こ
のとき、ワイヤ電極１が被加工物７のポンチ状部
材７ｃ又はダイ状部材７ｄ少なくとも一方に接触
して短絡状態になれば加工は停止され、連続加工
ができなくなる。また、短絡状態とならなけれ
ば、加工は継続されるもののポンチ状部材７ｃが
傾いているので、この部分における加工精度は悪
くなる。 A workpiece is machined into a desired shape by the wire cut electric discharge machining apparatus configured as described above, and when this machining is completed and the process is about to end, as shown in FIG. 3, the workpiece 7c is cut off and falls off.
(hereinafter referred to as the punch-like member) and the workpiece 7d that does not fall out (hereinafter referred to as the die-like member) have a small remaining machining area, and the supporting force of this machining residual area alone cannot support the weight of the punch-like member 7c. The punch-like member 7c becomes tilted. At this time, if the wire electrode 1 comes into contact with at least one of the punch-like member 7c or the die-like member 7d of the workpiece 7 and a short circuit occurs, the machining is stopped and continuous machining is no longer possible. Further, unless a short circuit occurs, the machining continues, but since the punch-like member 7c is tilted, the machining accuracy in this portion deteriorates.
また、被加工物の加工が終了した時点において
は、第４図に示すように所望形状に加工されたポ
ンチ状部材７ｃは支え部分がなくなつて落下す
る。このとき、ポンチ状部材７ｃの下方に位置す
る下部加工液ノズル９ｄなどにポンチ状部材７ｃ
が衝突し、上記ポンチ状部材７ｃが損傷したり、
あるいは下部加工液ノズル９ｂや下部アーム１７
などを破損させたりする欠点があつた。 Further, at the time when the machining of the workpiece is completed, the punch-like member 7c that has been machined into the desired shape loses its supporting portion and falls, as shown in FIG. At this time, the punch-like member 7c is inserted into the lower machining liquid nozzle 9d located below the punch-like member 7c.
collide, and the punch-like member 7c is damaged,
Or the lower processing liquid nozzle 9b or the lower arm 17
There was a drawback that it could cause damage to other items.
このように、加工終了時、ポンチ状部材が傾斜
したり、落下したりすることを防止するために従
来から、加工途中で被加工物の加工溝に接着剤を
流し込みポンチ状部材を固定したり、あるいはポ
ンチ状部材とダイ状部材とを加工溝をはさんで固
定金具などで固定したりする方法が用いられてい
た。ところが、これらの方法はいずれも加工途中
で人手によつて行なわれなければならないため、
煩わしく、特に夜間の自動運転時などでも作業者
が待機しなければならないことになり、はなはだ
不都合であつた。また、接着剤による固定方法で
は加工後ポンチ状部材とダイ状部材とを引き離す
作業工程が必要となり作業能率を低下させる欠点
がある。 In order to prevent the punch-like member from tilting or falling at the end of machining, conventional methods have been to fix the punch-like member by pouring adhesive into the groove of the workpiece during machining. Alternatively, a method has been used in which a punch-like member and a die-like member are sandwiched between a machined groove and fixed with a fixing fitting or the like. However, all of these methods must be carried out manually during processing, so
This was a major inconvenience, as the operator had to stand by even during automatic operation, especially at night. Furthermore, the fixing method using adhesive requires a step of separating the punch-like member and die-like member after processing, which has the disadvantage of reducing work efficiency.
この発明は上記のような従来の欠点を除去する
ためになされたもので、被加工物に回転自由に取
付けられた保持具によつてポンチ状部材（切り落
される部材）を保持し、加工終了時にもこのポン
チ状部材が傾斜、落下することを防止できる放電
加工方法を提供することを目的としている。 This invention was made in order to eliminate the above-mentioned drawbacks of the conventional method, and the punch-like member (the member to be cut off) is held by a holder rotatably attached to the workpiece, and the punch-like member (the member to be cut off) is It is an object of the present invention to provide an electric discharge machining method that can prevent the punch-like member from tilting and falling even when the machining is finished.
以下、この発明の一実施例を図について説明す
る。第５図は被加工物の加工部分の平面を、第６
図は正面を示したもので、図において、７は被加
工物、１８はこの被加工物７に形成され、加工開
発時ワイヤ電極（図示せず）が挿入されるオリジ
ナル、７ｂは加工溝、７ｅは加工予定軌跡（切断
線）、７ｃはポンチ状部材、７ｄはダイ状部材、
９ａは上部加工液ノズル、１９は上記ポンチ状部
材７ｃに植設されたピンで、ポンチ状部材７ｃと
はその一部に形成されたねじによつて取付けられ
ている。２０はこのピン１９を中心として回転自
由に設けられた保持板で、中心から両端部までの
長さはそれぞれ加工予定軌跡７ｅの最長部より長
く、かつ、上部加工液ノズル９ａが側面に当接す
るだけの厚さを有するように構成されている。ま
た、この保持板２０はポンチ状部材７ｃを吊持す
るに十分耐え得る材質の部材とするとともに、特
に上部加工液ノズル９ａがワイヤ電極１と同電位
であるワイヤカツト放電加工装置にあつては絶縁
材で構成する必要がある。さらに、ピン１９と保
持板２０との嵌合回転部はベアリングなどを用い
たり、それぞれ滑らかな加工をするなどして、保
持板２０がわずかな押圧力でも円滑な回転ができ
るようにされている。 An embodiment of the present invention will be described below with reference to the drawings. Figure 5 shows the plane of the machined part of the workpiece.
The figure shows the front side, and in the figure, 7 is a workpiece, 18 is an original formed on this workpiece 7 and into which a wire electrode (not shown) is inserted during processing development, 7b is a processing groove, 7e is a planned machining trajectory (cutting line), 7c is a punch-shaped member, 7d is a die-shaped member,
9a is an upper machining liquid nozzle, and 19 is a pin implanted in the punch-like member 7c, which is attached to the punch-like member 7c by a screw formed in a portion thereof. Reference numeral 20 denotes a holding plate that is freely rotatable around this pin 19, and the length from the center to both ends is longer than the longest part of the planned machining trajectory 7e, and the upper machining liquid nozzle 9a abuts the side surface. It is constructed to have a thickness of The holding plate 20 is made of a material that is sufficiently durable to suspend the punch-like member 7c, and is particularly insulated in the case of a wire-cut electric discharge machining apparatus in which the upper machining fluid nozzle 9a is at the same potential as the wire electrode 1. It must be made of wood. Further, the fitting rotating portion between the pin 19 and the retaining plate 20 uses a bearing or the like or is processed to be smooth so that the retaining plate 20 can rotate smoothly even with a slight pressing force. .
次に動作について説明する。所定の放電加工を
行なうに先だち、ポンチ状部材７ｃが加工される
予定位置のほぼ中央部にピン１９及び保持板２０
をセツトする。次にワイヤ電極をオリジナルホー
ル１８に挿入した加工を開始すると、やがて上部
加工液ノズル９ａが保持板２０の側面に当接す
る。この後、上部加工液ノズル９ａはこの加工が
終了するまで上記保持板２０を押し続ける。この
ため、加工終了時には保持板２０は両端がダイ状
部材７ｄに橋架された状態でポンチ状部材７ｃを
吊持することとなり、上記ポンチ状部材７ｃの落
下を防止している。また、加工の終了直前におい
ても、上記保持板２０がポンチ状部材７ｃの傾き
を防止する作用をし、最終加工部分においても加
工精度を低下させることなく完全な加工ができ
る。 Next, the operation will be explained. Prior to performing a predetermined electrical discharge machining, a pin 19 and a holding plate 20 are placed approximately in the center of the planned position where the punch-like member 7c is to be machined.
Set. Next, when the wire electrode is inserted into the original hole 18 and processing is started, the upper processing liquid nozzle 9a eventually comes into contact with the side surface of the holding plate 20. After this, the upper machining liquid nozzle 9a continues to press the holding plate 20 until this machining is completed. Therefore, at the end of processing, the holding plate 20 suspends the punch-like member 7c with both ends bridged by the die-like member 7d, thereby preventing the punch-like member 7c from falling. Furthermore, even just before the end of machining, the holding plate 20 acts to prevent the punch-like member 7c from tilting, allowing complete machining to be performed without reducing machining accuracy even in the final machining part.
なお、このような加工において被加工物７に対
する保持板２０の回転量は少ないので、ピン１９
と保持板２０とを一体化し、このピン１９にねじ
を切つて被加工物７に螺合させてこの部分で回転
されるようにしてもよい。この場合、ピン１９の
被加工物７に対する初期のねじ込み状態において
は、保持板２０の回転量に相当する分だけねじ込
む量を少くしておき、保持板２０の回転動作後に
ピン１９が螺進して切り落される部分の面と保持
板の面とが一致するようにしておく必要がある。 In addition, since the amount of rotation of the holding plate 20 with respect to the workpiece 7 in such processing is small, the pin 19
The holding plate 20 and the holding plate 20 may be integrated, and this pin 19 may be threaded to be screwed onto the workpiece 7 so that it can be rotated at this portion. In this case, when the pin 19 is initially screwed into the workpiece 7, the screwing amount is reduced by an amount corresponding to the rotation amount of the holding plate 20, so that the pin 19 is screwed in after the holding plate 20 rotates. It is necessary to make sure that the surface of the part to be cut off matches the surface of the holding plate.
第７図はこの発明の他の実施例を示したもの
で、図において、２１は加工が予定されているポ
ンチ状部材７ｃに植設されたピン１９と回転自由
に嵌合された十字形の保持板で、少なくとも保持
板２１の一部が常時ダイ状部材７ｄに橋架される
状態になつている。２２はＴ字状の保持板で、こ
の保持板の橋架部分２２ａが上部加工液ノズル９
ａに当接押圧されて回転すると、他の部分２２ｂ
が橋架状となるようになつている。このような保
持板２１，２２を使用すれば、保持板を小形化す
ることができるとともに、加工液ノズルが保持板
を当接押圧する距離を短かくすることができ、特
に加工残部がポンチ状部材を充分支持できる状態
のときに保持板すべて回動させ終るよう配置すれ
ば加工終了時、ポンチ状部材の自重が加わつて抗
回転力が大きくなつた保持板を押圧回動させなが
らすすまなくてもよく、それだけＸ，Ｙ軸の駆動
モータ１４，１５に余分な外方が加わらないこと
になり、位置制御などを正確に行なわせることが
できる。 FIG. 7 shows another embodiment of the present invention. In the figure, 21 is a cross-shaped pin 19 that is rotatably fitted into a punch-like member 7c that is scheduled to be processed. At least a part of the holding plate 21 is always bridged over the die-shaped member 7d. Reference numeral 22 denotes a T-shaped holding plate, and a bridge portion 22a of this holding plate connects to the upper processing liquid nozzle 9.
When the other part 22b is pressed and rotated, the other part 22b
is shaped like a bridge. By using such retaining plates 21 and 22, the retaining plates can be made smaller, and the distance that the machining liquid nozzle contacts and presses against the retaining plates can be shortened. By arranging the holding plates so that all of the holding plates can be rotated when the workpiece is fully supported, at the end of machining, there is no need to press and turn the holding plate, which is subject to a large anti-rotation force due to the weight of the punch-shaped member. This means that no unnecessary external force is applied to the drive motors 14 and 15 for the X and Y axes, and position control and the like can be performed accurately.
第８図はこの発明のさらに他の実施例を示した
もので、ダイ状部材７ｄの下面部に植設されたピ
ン１９に、十字形などの保持板２１が回転自由に
嵌合されている。この保持板２１は下部加工液ノ
ズル９ｂにより当接押圧されて回転する。この実
施例はポンチ状部材７ｃの上部に保持板２１を取
付ける空間がなかつたり、ポンチ状部材７ｃにピ
ン１９の取付け穴を設けることが望ましくない場
合に用いると好適である。 FIG. 8 shows still another embodiment of the present invention, in which a cross-shaped holding plate 21 is rotatably fitted to a pin 19 implanted in the lower surface of the die-shaped member 7d. . This holding plate 21 is pressed into contact with and rotated by the lower processing liquid nozzle 9b. This embodiment is suitable for use when there is no space above the punch-like member 7c to attach the holding plate 21, or when it is undesirable to provide an attachment hole for the pin 19 in the punch-like member 7c.
なお、保持板の形状は上記実施例で示した一文
字形、十字形、Ｔ字形などのほか、被加工物の形
状に応じて種々の形状のものを用いればよい。ま
た、ワイヤ電極の近傍に設けられ、電極とともに
動く押圧治具により保持板を押圧回動させる、あ
るいは電極と保持板とが接触しそうになつた時リ
ミツトスイツチ等によりそれを検知し、別に設け
たロータリーソレノイド、電動機などの回転駆動
装置によつて保持板を所定角度回転させても上記
実施例と同様の効果を奏する。また、電極はワイ
ヤ状のものに限らず、棒状電極を用いて切断加工
するようにしたものに対しても同様の効果が得ら
れる。 The shape of the holding plate may be various shapes depending on the shape of the workpiece, in addition to the single-letter shape, cross shape, T-shape, etc. shown in the above embodiments. In addition, the holding plate is pressed and rotated by a pressing jig that is installed near the wire electrode and moves together with the electrode, or when the electrode and the holding plate are about to come into contact, it is detected by a limit switch, etc., and a separately installed rotary Even if the holding plate is rotated by a predetermined angle using a rotation drive device such as a solenoid or an electric motor, the same effect as in the above embodiment can be obtained. Furthermore, the same effect can be obtained not only when the electrode is wire-shaped but also when cutting is performed using a rod-shaped electrode.
以上のようにこの発明は放電加工によつて切断
加工される被加工物を、この被加工物に対し回転
自由にかつ切断線と交差する配置関係に設けられ
た保持具により加工終了後切り落される部材を切
り落されない方の部材に対して保持するようにし
たので、上記切断される方の部材が加工終了直前
に傾いたり、加工終了後落下したりするようなこ
とが防止でき、被加工物の最終加工部分の加工精
度を向上させるとともに、被加工物が損傷したり
放電加工装置を破損させたりすることがなくなる
といつた効果がある。さらに、保持具は回転自在
であり、加工中あるいは加工途中に回転運動させ
るようにしたため電極と保持具とが接触して加工
精度を損なわせるようなこともない。 As described above, the present invention allows a workpiece to be cut by electrical discharge machining to be cut off after the machining is completed using a holder that is freely rotatable relative to the workpiece and is arranged to intersect the cutting line. Since the part to be cut is held against the part not to be cut off, it is possible to prevent the part to be cut from tilting just before the end of machining or falling after the end of machining. This has the effect of improving the machining accuracy of the final machined part of the workpiece, and preventing damage to the workpiece or damage to the electrical discharge machining equipment. Further, since the holder is rotatable and rotated during or during machining, there is no possibility that the electrode and the holder will come into contact with each other and impair machining accuracy.
第１図はワイヤカツト放電加工装置を説明する
図、第２図は被加工物を加工する部分を示す断面
図、第３図、第４図はそれぞれ従来の加工方法に
よつて加工された被加工物を示す断面図、第５
図、第６図はそれぞれこの発明の一実施例を示す
平面図及び正面図、第７図、第８図はそれぞれこ
の発明の他の実施例を示す図である。
図において、１はワイヤ電極、４は上部ガイ
ド、５は下部ガイド、７は被加工物、９は加工液
ノズル、１９はピン、２０，２１，２２は保持板
である。なお、図中同一符号はそれぞれ同一又は
相当部分を示している。
Figure 1 is a diagram explaining a wire cut electrical discharge machining device, Figure 2 is a sectional view showing the part where a workpiece is machined, and Figures 3 and 4 are workpieces machined by conventional machining methods. Cross-sectional view showing an object, No. 5
6 are a plan view and a front view, respectively, showing one embodiment of the present invention, and FIGS. 7 and 8 are diagrams, respectively, showing other embodiments of the present invention. In the figure, 1 is a wire electrode, 4 is an upper guide, 5 is a lower guide, 7 is a workpiece, 9 is a machining liquid nozzle, 19 is a pin, and 20, 21, and 22 are holding plates. Note that the same reference numerals in the figures indicate the same or corresponding parts.
Claims (1)
とにより被加工物を切断加工する放電加工方法に
おいて、切断加工により切り落される被加工物部
分と、切り落されずに残る被加工物部分との少な
くともどちらか一方に、切り落される被加工物部
分を支えるための保持具を切断加工される溝を跨
ぐように回動自在に固定し、この保持具を放電加
工装置における放電加工に伴つて移動する放電電
極以外の部材によつて押圧回動させ、保持具の回
動中心を境として上記部材によつて押圧された部
分と反対側の部分を加工された溝を常に跨ぐ状態
に維持させて、この部分で切り落とされる被加工
物部分を切り落されずに残る被加工物部分に支持
させながら切断加工を行なうことを特徴とする放
電加工方法。 ２ 保持具は切り落される部材の上面に取付けら
れていることを特徴とする特許請求の範囲第１項
記載の放電加工方法。 ３ 保持具は切り落されない部材の下面に取付け
られていることを特徴とする特許請求の範囲第１
項記載の放電加工方法。 ４ 切断加工は、電極としてワイヤ電極を使用
し、かつ加工が行なわれている部分にノズルによ
り加工液を供給するワイヤカツト放電加工により
行なうことを特徴とする特許請求の範囲第１項記
載の放電加工法。 ５ 保持具は加工液ノズルによつて押圧回転され
ることを特徴とする特許請求の範囲第４項記載の
放電加工方法。 ６ 保持具は電極の近傍に設けられた押圧治具に
よつて押圧回転されることを特徴とする特許請求
の範囲第１項ないし第３項のいずれかに記載の放
電加工法。[Claims] 1. In an electrical discharge machining method in which a workpiece is cut by applying a relative feed between an electrode and a workpiece, a part of the workpiece that is cut off by cutting and a part that is cut off are A holder for supporting the part of the workpiece to be cut off is rotatably fixed to at least one side of the part of the workpiece that remains without cutting so as to straddle the groove to be cut. It is pressed and rotated by a member other than the discharge electrode that moves with discharge machining in an electric discharge machining device, and the part opposite to the part pressed by the above member with respect to the center of rotation of the holder is machined. An electric discharge machining method characterized in that cutting is performed while always maintaining a state where the groove is straddled, and the part of the workpiece to be cut off at this part is supported by the part of the workpiece that remains without being cut off. 2. The electric discharge machining method according to claim 1, wherein the holder is attached to the upper surface of the member to be cut off. 3. Claim 1, characterized in that the holder is attached to the lower surface of the member that is not cut off.
Electrical discharge machining method described in section. 4. Electrical discharge machining according to claim 1, characterized in that the cutting process is carried out by wire-cut electric discharge machining, which uses a wire electrode as an electrode and supplies machining liquid through a nozzle to the part being machined. Law. 5. The electrical discharge machining method according to claim 4, wherein the holder is pressed and rotated by a machining fluid nozzle. 6. The electrical discharge machining method according to any one of claims 1 to 3, wherein the holder is pressed and rotated by a pressing jig provided near the electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7579779A JPS563147A (en) | 1979-06-15 | 1979-06-15 | Electric discharge machining method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7579779A JPS563147A (en) | 1979-06-15 | 1979-06-15 | Electric discharge machining method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS563147A JPS563147A (en) | 1981-01-13 |
| JPS6137047B2 true JPS6137047B2 (en) | 1986-08-21 |
Family
ID=13586545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7579779A Granted JPS563147A (en) | 1979-06-15 | 1979-06-15 | Electric discharge machining method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS563147A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62178682U (en) * | 1986-04-30 | 1987-11-13 | ||
| JPS637878U (en) * | 1986-07-02 | 1988-01-19 | ||
| JPS637879U (en) * | 1986-07-02 | 1988-01-19 | ||
| JPS6433284U (en) * | 1987-08-22 | 1989-03-01 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5615935A (en) * | 1979-07-17 | 1981-02-16 | Mitsubishi Electric Corp | Wire out type electrospark machining device |
| JPS6263018A (en) * | 1985-09-14 | 1987-03-19 | Fanuc Ltd | Wire electrode breaking position detecting method in wire-cut electric discharge machine |
| JPS62114826A (en) * | 1985-11-14 | 1987-05-26 | Mitsubishi Electric Corp | Wire electro-discharge machining |
-
1979
- 1979-06-15 JP JP7579779A patent/JPS563147A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62178682U (en) * | 1986-04-30 | 1987-11-13 | ||
| JPS637878U (en) * | 1986-07-02 | 1988-01-19 | ||
| JPS637879U (en) * | 1986-07-02 | 1988-01-19 | ||
| JPS6433284U (en) * | 1987-08-22 | 1989-03-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS563147A (en) | 1981-01-13 |
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