WO1987004379A1 - Wire-cut electric spark machine - Google Patents

Wire-cut electric spark machine Download PDF

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Publication number
WO1987004379A1
WO1987004379A1 PCT/JP1987/000050 JP8700050W WO8704379A1 WO 1987004379 A1 WO1987004379 A1 WO 1987004379A1 JP 8700050 W JP8700050 W JP 8700050W WO 8704379 A1 WO8704379 A1 WO 8704379A1
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WO
WIPO (PCT)
Prior art keywords
wire
electrode
contact
current
wire electrode
Prior art date
Application number
PCT/JP1987/000050
Other languages
French (fr)
Japanese (ja)
Inventor
Gotaro Gamo
Haruki Obara
Hiroshi Kinoshita
Original Assignee
Fanuc Ltd
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 Fanuc Ltd filed Critical Fanuc Ltd
Publication of WO1987004379A1 publication Critical patent/WO1987004379A1/en

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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
    • B23H7/08—Wire electrodes
    • B23H7/10—Supporting, winding or electrical connection of wire-electrode

Definitions

  • the present invention relates to a wire discharge processing device, and more particularly to a current-carrying contact for supplying a current to a wire electrode of the wire discharge processing device.
  • a wire discharge processing device includes an energizing device having an energizing contact that is disposed in pressure contact with a wire electrode, and the wire electrode and the wire electrode are connected to each other through the energizing contact. It is provided so that a voltage is applied between the work and a discharge is generated between the two to process the work.
  • FIG. 4 shows a conventional energizing device.
  • the wire electrode P sent out from the wire supply bobbin 5 is connected to the guide rollers 4 and 4. It is guided by 3, presses against the current-carrying contact 1, is further guided by guide 2, penetrates the work W and extends below the work W.
  • the elements corresponding to the current-carrying contacts 1, the guides 2 and the guides u-ra 3, 4 and the wire take-up bobbin are also provided below the work W at the lower side. And the wire electrode P extends downward by being guided by these guides and force guides, and is also pressed against the current-carrying contacts.
  • the wire electrode P which runs along such a path, is usually wound on a wire winding bobbin, and finally wound on a wire winding bobbin.
  • the specified tension is added.
  • the wire electrode P was broken during the processing, the wire was added to the electrode P. --The tension disappears, and the wire electrode P is bent as shown by the broken line in FIG.
  • the conventional energizing device is provided with a limit switch 6 which responds to the occurrence of deflection at the time of disconnection.
  • the voltage application to the work W via the current-carrying contact 1 is turned off.
  • the purpose of the present invention is to solve the above problems. Therefore, when the wire electrode is cut off, the distance between the wire electrode and the current-carrying contact is prevented, and the wire is not concealed to the wire and the contact. It is to become.
  • the present invention is provided with a pressing means for constantly pressing the wire electrode ⁇ on a current-carrying contact that supplies power to the wire electrode.
  • the wire electrode is cut off during the discharge application and the wire is not separated from the through contact, the wire is disconnected from the wire. Discharge did not occur between the electrode and the current-carrying contact, so that i ⁇ "due to discharge did not occur in ⁇ ⁇ ⁇ 3 ⁇ 4 3 ⁇ 4 and through contact.
  • the wire can be easily connected automatically so that the electrode does not catch on one lead. Chi to the child (but one Kana have or et al., that Do the use of Yotokitoi of through contact is possible
  • FIG. 5 is a front view of a section of a power supply device according to an embodiment of the present invention
  • FIG. 2 is a right side view of the device of FIG. 1
  • FIG. 3 is a pressing member of FIG.
  • FIG. 4 is an explanatory view of a main part showing a conventional energizing device.
  • FIG. 1 or FIG. 3 is a schematic view of the present invention, in which the passage of the wire discharge heating device according to the present invention is reduced, and the current-carrying device is similar to that of FIG.
  • reference numeral 3 ⁇ 4 16 denotes an L-shaped cross-section mounting plate.
  • BAD ORIGINA 6 consists Ri good and the second wall portion I 6 b extending ⁇ perpendicular to ⁇ first wall portion I 6 a and the electrodes extending ⁇ Wa Lee catcher electrodes P and Ryakutaira line.
  • An energizing contact 1 for energizing the wire electrode P is provided at a lower portion of one side lower portion of the electrode-side surface 16 c of the second wall portion 16 a of the mounting plate 16.
  • the contact 1 is connected to an unillustrated power supply via a mounting plate.
  • Reference numeral 3 denotes a pressing mechanism that constantly presses the wire electrode P against the current-carrying contact 10, and the mechanism 13 is composed of a reporter 14 and a ⁇ roller.
  • a pin 20 protrudes from an upper surface on the other side of the surface 16c of the first wall portion 16a of the ⁇ mounting plate 16 having the bearing 19 and the leaf spring 15.
  • the lever ⁇ 4 whose upper end is pivotally connected to the pin 20 and is swinging around the pin 20, has a lever ⁇ 4, A bearing ⁇ 9, which is supported by its lower end in rotation, extends substantially in parallel with the ⁇ .f electrode P to a position where it can face the current contact ⁇ 0. .
  • One end 15 a of the leaf spring 15 is located above the surface 16 c of the first wall portion 6 a and is opposite to the lever 4 of the mounting plate 16. The other end, that is, the free end 5b is pressed against the surface on the opposite electrode side in the middle of the repeller 14 (the plate is closed).
  • the spring 15 presses the bearing ⁇ 9 to the side of the current-carrying contact 10 through the reper 14, and the electrode 15 disposed between the two contacts the contact-10.
  • the pressing mechanism 13 will be further described with reference to Fig. 3.
  • a screw hole is provided at the lower end of the lever ⁇ 4 of the mechanism 13, and the shaft 17 is fixedly attached to the lever ⁇ 4 via this screw hole. It is.
  • the bush 18 is provided with a bearing 19 via an insulating push 18 in this t 'foot 17. It is made of insulating material and is provided to prevent current from flowing to the wire electrode ⁇ through the bearing ⁇ 9.
  • the current-carrying device is provided so that when the wire electrode ⁇ is energized, the mounting ⁇ 16 has the same potential as the current-carrying contact ⁇ 0, and the bearing 19 If the electrical contact is not electrically isolated from the mounting plate ⁇ 6, frost flows from the current-carrying contact 10 and the near-peripheral potential bearing ⁇ 9 to the charging electrode ⁇ , The life of the ring 19 is shortened. This can be overcome by providing an absolute bush 18. It is recommended that the levers 14 be grooved with wood, or that they be cut off elsewhere so that no current flows to the bearings 19. It is not necessary to provide insulation 8 between the shaft 17 and the bearing 19 to insulate them.
  • the spring 15 is always rotated clockwise in FIG. 1 around the bin 20 with the lever 14 as the center.
  • the lever 14 is urged to move, and the bearing ⁇ 9 mounted on the end of the lever 14 is pressed against the current-carrying contact 10 ⁇ , and the bearing 14 is pressed.
  • Wires ⁇ disposed on the ring 19 and the current contact ⁇ are constantly pressed against the current contact ⁇ 0.
  • the wire electrode P is disconnected.
  • the tension on the gate electrode P is removed, and the tension on the gate electrode P is eliminated.
  • the wire electrode P since the wire electrode P is pressed and sandwiched between the current-carrying contact 10 and the bearing 19, the wire electrode P does not separate from the contact 1 10. Therefore, the wire electrode
  • Insulation between the current-carrying contact 10 and the fibre-plate 16 is made so that power can be supplied to the current-carrying contact 10 without going through the mounting 16. It is not necessary to insert the absolute bushing 18 in the bearing 19 and the shaft 7!
  • 1 off I turbocharger electrode P of the conductive contact 1 0 base of the eye that you pressed to A Li in g 1 9, the mouth of the times Utateshiro ⁇ - may be a La.
  • the pressing machine groove 13 is constituted only by a leaf spring-shaped pressing member, and the wire pole P is directly applied to the wire pole P by the leaf spring-shaped pressing member without passing through a roller. Pressing to 0 may be performed, but in this case, the desired effect is achieved because the pressing member does not rotate with the traveling of the pole. The friction between the pressing member and the wire electrode P increases.
  • pressing mechanism 13 is connected to the current-carrying contact 10 by wire.

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  • 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)

Abstract

A wire-cut electric spark machine equipped with a current device which has a current contactor (10) to supply electric power to a wire electrode (P). The current device is provided with a pushing means (13) which pushes the wire electrode onto the current contactor at all times, in order to prevent the electrode from being damaged by the electric discharge that takes place when the electrode separates away from the current contactor during the cutting operation by the wire electrode.

Description

一  One
. 明 細 書 . Specification
ワ イ 放電加 工装置  Wire discharge processing equipment
技 術 分 野  Technical field
本発明 は ワ イ ヤ放電加 工装置 に 関 し 、 特 に 、 ワ イ ヤ放 電加 工装置の ワ イ ヤ電極へ通電す る た めの通電接触子 に 関連 す る も の で あ る 。  The present invention relates to a wire discharge processing device, and more particularly to a current-carrying contact for supplying a current to a wire electrode of the wire discharge processing device.
背 景 技 術  Background technology
一般 に 、 ワ イ ヤ放電加 工装置 は 、 ワ イ ヤ 電極 に 圧接 し て 配さ れる通電接触子を有 す る通電装置を備え 、 通電接 触子を介 し て ワ イ ヤ電極 と ワ ー ク 間 に 電圧を 印加 し 、 両 者間 に 放電を生 じ さ せ て ワ ー ク を加 工 する よ う に 設け ら れて い る 。  Generally, a wire discharge processing device includes an energizing device having an energizing contact that is disposed in pressure contact with a wire electrode, and the wire electrode and the wire electrode are connected to each other through the energizing contact. It is provided so that a voltage is applied between the work and a discharge is generated between the two to process the work.
第 4 図 は従来の通電装置を 示 し 、 同図 に お い て 、 ワ イ ャ供給 ボ ビ ン 5 か ら 送 り 出 さ れ た ワ イ ヤ電極 P は 、 ガ イ ド ロ ー ラ 4 ， 3 で ガ イ ド さ れ 、 通電接触子 1 と 圧接 し 、 さ ら に ガ イ ド 2 で ガ イ ド さ れ て ワ ー ク Wを 貫通 し て ヮ ー ク W の下方 に 延び て い る 。 図示を省略 す る が 、 ワ ー ク W の 下方则 に も通電接触子 1 , ガ イ ド 2 及びガ イ ド u —ラ 3 , 4 に 対応す る要素 と 、 ワ イ ヤ巻取 り ボ ビ ン と が配 さ れ 、 ワ イ ヤ 電極 P は こ れ ら ガ イ ド及び力' イ ド ロ ー ラ に よ り ガ イ ド さ れて 下方 に 延在 し 、 ま た 、 通電接触子 に 圧接 し て 配 さ れ 、 最後 に ワ イ ヤ巻取 り ボ ビ ン に 巻取 ら れる 、 そ し て 、 こ の.よ う な径路 に 沿 っ て走行す る ワ イ ヤ電極 P に は通常 は所定 の テ ン シ ョ ン が加わ る 。 し か し 、 加 工 中 に ワ イ ヤ電極 P が 断線す る と 、 該電極 P に 加わ っ て い た - - テ ン ョ ン が消滅 し 、 第 4 図 に破線で 示す よ う に 、 ワ イ 電極 P に た わ みが生 じ る 。 こ の よ う な ワ イ ヤ ';: ¾ P の 断線を検出 する た め 、 従来の通電装置 は 、 断線時の た わ みの発生 に 応動 する リ ミ ッ ト ス ィ ッ チ 6 を備え 、 該 リ ミ ッ 卜 ス イ ツ 6 か ら の 断線検出信号 に 応 じ て 、 通電接触子 1 を 介 す る ワ ー ク Wへ の電圧印加 を オ フ す る よ う に し て い る 。 FIG. 4 shows a conventional energizing device. In this figure, the wire electrode P sent out from the wire supply bobbin 5 is connected to the guide rollers 4 and 4. It is guided by 3, presses against the current-carrying contact 1, is further guided by guide 2, penetrates the work W and extends below the work W. Although not shown, the elements corresponding to the current-carrying contacts 1, the guides 2 and the guides u-ra 3, 4 and the wire take-up bobbin are also provided below the work W at the lower side. And the wire electrode P extends downward by being guided by these guides and force guides, and is also pressed against the current-carrying contacts. The wire electrode P, which runs along such a path, is usually wound on a wire winding bobbin, and finally wound on a wire winding bobbin. The specified tension is added. However, if the wire electrode P was broken during the processing, the wire was added to the electrode P. --The tension disappears, and the wire electrode P is bent as shown by the broken line in FIG. In order to detect such a wire ';: ¾P disconnection, the conventional energizing device is provided with a limit switch 6 which responds to the occurrence of deflection at the time of disconnection. In response to the disconnection detection signal from the limit switch 6, the voltage application to the work W via the current-carrying contact 1 is turned off.
し か し な が ら 、 リ ミ ツ 卜 ス ィ ッ チ 6 に よ る ワ イ ヤ 電極 P の 断線検出 時か ら 通雷接触子 1 へ の通電を オ フ に す る ま で に 時間遅れがあ り 、 その た め 、 ワ イ 電極 P が通電 接触 1 か ら 離れる と さ通 ¾接触子 1 と ワ イ ャ電極 P 間 に放電が生 じ 、 こ の放電 に よ り 、 放 mが生 じ た ワ イ ヤ電 極 p の個所 に 凹 凸状の 隳がっ く 。  However, there is a time lag between when the disconnection of the wire electrode P is detected by the limit switch 6 and when the power to the lightning contact 1 is turned off. As a result, when the wire electrode P is separated from the current-carrying contact 1, a discharge is generated between the contact 1 and the wire electrode P, and a discharge is generated by this discharge. There is a concave / convex shape at the wire electrode p.
そ の結果 、 再度 ワ イ ヤ電極 ρ を結線する場合 、 ワ イ ヤ ¾極 Ρ を ガ' ィ ド 2 に 通 す と き 、 上記 ワ イ ヤ '環極 Ρ 上の傷 が ガ' ィ ド 2 に ひ つ かか り 、 通す こ と が難 し く 、 特 に ワ イ ャ '環極 Ρ を 自 勁送袷 す る と き な ど は 、 自 動送袷がで き な く な る 洌 え ば 、 .ヒ記ガ イ ド 2 が ダイ ス状の も ので あ る と 、 ワ イ ヤ選 ¾ Ρ と こ れが通る ダ ィ ス ：1犬 ガ イ ド 2 と の対 向面間 の ゥ リ ア ラ ン ス は 5 〃 〜 Ί 0 で あ る ので 、 ワ イ ^電極 に 上 ¾の よ う な傷が つ く と ガ イ ド 2 へ の電極の 揷 通 に 困 難を来た す 。 ま た 、 放電が生 じ る と 通電接触子 1 に も ί察が つ き 、 通霜接触 子 Ί の寿命を短 く する 。  As a result, when the wire electrode ρ is connected again, when the wire electrode Ρ is passed through the guide 2, the wound on the wire 'ring electrode が may be damaged. In particular, it is difficult to pass through the wire, especially when the wire is ringed automatically. For example, if guide guide 2 is a dice-shaped one, wire selection ダ and the dice through which it passes: 1 ゥ The gap between the face facing dog guide 2 Since the allance is 5〃 to 0Ί, if the wire is damaged as above, it will be difficult to pass the electrode to Guide 2. In addition, when the discharge occurs, the current contact 1 is also detected, thereby shortening the life of the frost contact 短.
発 明 の 開 示 本発明 の 的 は 、 上記問 題点を 解決 し ょ う と す る も の で 、 ワ イ ャ電極が切 断 し た と き 、 ワ イ ヤ電極 と 通電接触 子 間 の放 mを 防止 し て ワ イ ャ ' ¾ ¾及 び通 Ί 接触 子 に 隱を つ け な い よ に す る こ と に あ る 。 DISCLOSURE OF THE INVENTION The purpose of the present invention is to solve the above problems. Therefore, when the wire electrode is cut off, the distance between the wire electrode and the current-carrying contact is prevented, and the wire is not concealed to the wire and the contact. It is to become.
上記 目 的を達成 す る た め に 、 本 発明 は 、 ワ イ ヤ電極 に 電力 を 供袷 す る通電接触子 に ワ イ ヤ電 ^ を常時押 E す る 押圧 手段 を 設け て成る 。  In order to achieve the above object, the present invention is provided with a pressing means for constantly pressing the wire electrode ^ on a current-carrying contact that supplies power to the wire electrode.
以 上述ベ た よ に 、 本発明 は 、 ワ イ ヤ電極が放電加 ェ 中 に 切 断 し て ち ワ イ ヤ ¾ ¾ が通 ¾接触 子か ら 離れる こ と は な い か ら 、 フ ィ ャ 電極 と 通電接触子 間 に 放電 が生 じ る こ と は な く 、 そ の た め ヮ ·τ ¾ ¾ ¾び通 ¾接 ¾ に 放電 に よ る i¾"が つ く こ と は な い た め 、 ヮ 電極 を再び ガ ィ ド に 通 す と さ ヮ ィ ャ ' 極が 1 ィ ド に ひ っ か か る こ と は な ぐ ワ イ の 自 動結線が容易 に 行え ^ る ， 又 ， 通電接触子 に ち ( が つ かな い か ら 、 通 接触子の 良時問 の使用 が可 能 と な る As described above, according to the present invention, since the wire electrode is cut off during the discharge application and the wire is not separated from the through contact, the wire is disconnected from the wire. Discharge did not occur between the electrode and the current-carrying contact, so that i ヮ "due to discharge did not occur in ヮ · τ ¾ ¾ and through contact. When the electrode is passed through the guide again, the wire can be easily connected automatically so that the electrode does not catch on one lead. Chi to the child (but one Kana have or et al., that Do the use of Yotokitoi of through contact is possible
面の 簡 な 説明  A brief description of the surface
第 Ί 図 は本発明 の 一実施例 に よ る Ά電装置の ¾ ¾ - 部 断面 正 面図 、 第 2 図 は第 1 図 の装置 の右側面図 、 第 3 図 は 第 1 図 の 押圧部材の 要部断面図 .、 第 4 図 は従来の通電 装置を 示す要部説明 図で あ る 。  FIG. 5 is a front view of a section of a power supply device according to an embodiment of the present invention, FIG. 2 is a right side view of the device of FIG. 1, and FIG. 3 is a pressing member of FIG. FIG. 4 is an explanatory view of a main part showing a conventional energizing device.
発明 を実施す る た め の 最良 の 形態  BEST MODE FOR CARRYING OUT THE INVENTION
第 1 図 な い し 第 3 図 は本発明 の一突施 冽 に よ る ワ イ ヤ 放電加 ェ装置の 通 置 を 小 し 、 該通電装 は ¾水的 に は 第 4 図 の も の と 略同様 に 溝成さ れ て い る 3 図 に お い て 参照符 ¾ 1 6 は L 字状断面の 取付板 を示 し 、 該取付 扳 Ί FIG. 1 or FIG. 3 is a schematic view of the present invention, in which the passage of the wire discharge heating device according to the present invention is reduced, and the current-carrying device is similar to that of FIG. In FIG. 3 in which the grooves are formed in substantially the same manner, reference numeral ¾ 16 denotes an L-shaped cross-section mounting plate.
BAD ORIGINA 6 は Λ ワ イ ャ電極 P と 略平 行 に延びる第 1 壁部 Ί 6 a と 電極 Ρ に 咯直交 し て延びる第 2 壁部 Ί 6 b と よ り 成る 。 こ の取付板 .1 6 の第 Ί 壁部 1 6 a の電極側 の面 1 6 c の 一側 下部 に は ワ イ ヤ電極 P に 通電す る た め の通電接触子 1 が配さ れ 、 該接触子 1 は取付板を 介 し て 図示 し な い電BAD ORIGINA 6 consists Ri good and the second wall portion I 6 b extending咯perpendicular to Ρ first wall portion I 6 a and the electrodes extending Λ Wa Lee catcher electrodes P and Ryakutaira line. An energizing contact 1 for energizing the wire electrode P is provided at a lower portion of one side lower portion of the electrode-side surface 16 c of the second wall portion 16 a of the mounting plate 16. The contact 1 is connected to an unillustrated power supply via a mounting plate.
'源 に 接 Λ れ い る u ま た 、 取 付板 1 6 の第 2 壁部 1 6 b の下面に は 、 中空 円 筒状の ノ ズル 1 2 と 、 該ノ ズル 1 2 内 に 配さ れかつ ヮ ィ ャ電極 P を ガ ィ ド す る た め の ガ'' イ ド 1 1 と が設け ら れて い る 。 そ し て、 参照符号 3 は ワ イ ヤ電極 P を通電接触子 1 0 に 常時押圧する押圧機構 を示 し 、 該機構 1 3 は 、 レ パ一 1 4 と 、 □ ー ラ と し て の ぺ ァ リ ン グ 1 9 と 、 板ばね 1 5 と を 備え て いる α 取付板 1 6 の第 1 壁部 1 6 a の面 1 6 c の 他側上部 に は ピ ン 2 0 が突設 さ れ 、 レバ一 1 4 はそ の上端が こ の ピ ン 2 0 に枢着さ れ 、 ピ ン 2 0 の ま わ り に揺動 自 在 に さ れて い る こ の レ バ ー Ί 4 は 、 そ の下端に よ り 回 転自 在 に支持 さ れ た ベ ア リ ン グ Ί 9 が通電接触子 Ί 0 に 対向可能な位 置 ま で ヮ .f ャ電極 P と 略平行 に 延び て い る 。 そ し て 、 板ばね 1 5 の 一端 1 5 a は 、 第 1 壁部 Ί 6 a の面 1 6 c の上部 に お い て 、 取付板 1 6 の レ バ一 Ί 4 に 関 し 反 . ¾!極側 に 固 着さ れ 、 他端す なわ ち 自 由 端 5 b は レ パ一 1 4 の 中 間 部の 反電極側 の面 に圧接 し て (ハ る 。 し た が つ て 、 板ばね 1 5 は 、 レパ— 1 4 を介 し て ベ ア リ ング Ί 9 を通電接触 子- 1 0 側 に 押圧 し 、 両者間 に 配 さ れ た電 ¾ Ρ を接触 子 'U or that have been against Λ to source, on the lower surface of the second wall portion 1 6 of preparative with plate 1 6 b, and Roh nozzle 1 second hollow circular cylindrical, disposed該No nozzle 1 in 2 And a guide 11 for guiding the gate electrode P is provided. Reference numeral 3 denotes a pressing mechanism that constantly presses the wire electrode P against the current-carrying contact 10, and the mechanism 13 is composed of a reporter 14 and a ぺ roller. A pin 20 protrudes from an upper surface on the other side of the surface 16c of the first wall portion 16a of the α mounting plate 16 having the bearing 19 and the leaf spring 15. The lever Ί4, whose upper end is pivotally connected to the pin 20 and is swinging around the pin 20, has a lever Ί4, A bearing Ί 9, which is supported by its lower end in rotation, extends substantially in parallel with the ャ .f electrode P to a position where it can face the current contact 接触 0. . One end 15 a of the leaf spring 15 is located above the surface 16 c of the first wall portion 6 a and is opposite to the lever 4 of the mounting plate 16. The other end, that is, the free end 5b is pressed against the surface on the opposite electrode side in the middle of the repeller 14 (the plate is closed). The spring 15 presses the bearing Ί 9 to the side of the current-carrying contact 10 through the reper 14, and the electrode 15 disposed between the two contacts the contact-10.
Ί 0 に 揮圧す る よ -う に 配さ れて い る - - 第 3 図 を参照 し て 押圧機構 1 3 を さ ら に 説明 す る 。 該 機構 1 3 の レ バ ー Ί 4 の下端部 に は ネ ジ 孔 が 設け ら れ 、 こ の ネ ジ孔を 介 し て シ ャ フ ト 1 7 が レ バ ー Ί 4 に嫘着固 定 さ れ て い る 。 そ し て 、 こ の シ t' フ 卜 1 7 に べ ア リ ン グ 1 9 が絶縁プ ッ シ ュ 1 8 を 介 し て 崁装 さ れて い る こ の ブ ッ シ ュ 1 8 は電気絶緣材 よ り な り 、 ベ ァ リ ン グ Ί 9 を 介 し て ワ イ ヤ 電極 Ρ に電流が 流れる の を 防止す る た め に 配設 さ れて い る 。 す なわ ち 、 通常 、 通電装置 は 、 ワ イ 電極 Ρ へ の通電時 に 取付扳 1 6 が通電接触 子 Ί 0 と 同電 位 に な る よ う に 設け ら れ 、 ベ ア リ ン グ 1 9 が取付板 Ί 6 か ら 電気的 に 絶緣さ れて い な い場合 に は通電接触子 1 0 と 略周電位の べ ァ リ ン グ Ί 9 か ら ヮ ャ電極 Ρ に 霜流が 流れ 、 ベ ア リ ン グ 1 9 の寿命が短 く な る 。 絶緣ブ ッ シ ュ 1 8 を設け れば 、 こ れが解消さ れる 。 な お 、 レバ ー 1 4 を铯緣材で 溝成 し た り 、 他の個所で絶緣 し て ベ ア リ ン グ 1 9 に 菡流が流 れ な い よ う に す れば よ く 、 必ず し も シ ャ フ 卜 1 7 と ベ ア リ ン グ 1 9 間 に絶緣プ ッ シ ュ Ί 8 を設け て 絶縁 し な く て も よ い Ί It is allocated to 0 --The pressing mechanism 13 will be further described with reference to Fig. 3. A screw hole is provided at the lower end of the lever Ί 4 of the mechanism 13, and the shaft 17 is fixedly attached to the lever て 4 via this screw hole. It is. The bush 18 is provided with a bearing 19 via an insulating push 18 in this t 'foot 17. It is made of insulating material and is provided to prevent current from flowing to the wire electrode て through the bearing Ί9. That is, usually, the current-carrying device is provided so that when the wire electrode 通電 is energized, the mounting 扳 16 has the same potential as the current-carrying contact Ί 0, and the bearing 19 If the electrical contact is not electrically isolated from the mounting plate Ί6, frost flows from the current-carrying contact 10 and the near-peripheral potential bearing Ί9 to the charging electrode Ρ, The life of the ring 19 is shortened. This can be overcome by providing an absolute bush 18. It is recommended that the levers 14 be grooved with wood, or that they be cut off elsewhere so that no current flows to the bearings 19. It is not necessary to provide insulation 8 between the shaft 17 and the bearing 19 to insulate them.
本実施例 の 装置 は 以上 の よ う な構成 に な っ て い る の で 、 扳ばね 1 5 は 、 常時 レ バ ー 1 4 が ビ ン 2 0 を 中心 に 第 1 図 中 時計方 向 に 回動 す る よ う に該 レ バ ー 1 4 を 付勢 し 、 レ バ ー 1 4 の先端 に 装着さ れ た ベ ア リ ン グ Ί 9 を通電接 触子 1 0 则 に 押圧 し 、 ベ ア リ ン グ 1 9 と 通電接触子 1 0 Ρ に 配 さ れる ワ イ ' 極 Ρ を通電接触子 Ί 0 に 常時押圧 し て い る 。 放胃加 ェ 時 に は 、 取付板 1 6 及び通電接触子 1 0 を 介 し て フ ィ ャ電極 P に 逋電さ れる が 、 そ の放電加 工 時 に お いて ヮ ィ ャ電極 P が 断線 し た と ぎ 、 ヮ ィ ャ電極 P に か け ら れて い た テ ン シ ョ ン が な く な 、 ヮ ィ ャ電極 P は た わ ち と す る 。 し か し 、 ワ イ ヤ電極 P は通電接敏子 1 0 と ベ ァ リ ン グ 1 9 で押圧挟持 さ れ て い る か ら ヮ ィ ャ電極 P は通 ¾1接触子 1 0 か ら 離反せず 、 そ の た め 、 ワ イ ヤ電極Since the device of this embodiment is configured as described above, the spring 15 is always rotated clockwise in FIG. 1 around the bin 20 with the lever 14 as the center. The lever 14 is urged to move, and the bearing Ί 9 mounted on the end of the lever 14 is pressed against the current-carrying contact 10 、, and the bearing 14 is pressed. Wires に disposed on the ring 19 and the current contact Ρ are constantly pressed against the current contact 通電 0. At the time of gastric discharge, electric power is supplied to the fuel electrode P via the mounting plate 16 and the current-carrying contact 10, but at the time of discharge processing, the wire electrode P is disconnected. As a result, the tension on the gate electrode P is removed, and the tension on the gate electrode P is eliminated. However, since the wire electrode P is pressed and sandwiched between the current-carrying contact 10 and the bearing 19, the wire electrode P does not separate from the contact 1 10. Therefore, the wire electrode
P の 断線を検出 す る た め の ？段 ( 図示略 ） か ら の 断線 険 出出力 に 応 じ 通 ea接触子 1 0 へ の通電が 才 フ さ れる の が遅れ て も 、 ヮ ィ ャ電極 P と 通電接触子 1 0 間 に放電が 生 じ る こ と は な く 、 ワ イ ヤ電極 P 及ぴ通電接触子が傷つ け ら れる こ と は な い To detect disconnection of P? Even if the power supply to the contact ea 10 is delayed depending on the disconnection steep output from the step (not shown), a discharge is generated between the wire electrode P and the conductive contact 10. It will not occur and will not damage the wire electrodes P and the current-carrying contacts.
な お 、 通電接触 子 1 0 と 取 fi板 1 6 間 を絶縁 し 、 取付 1 6 を 介 す る こ と な く 通電接触 ΐ 1 0 に 接電力 を供 給す る よ う に す れぱ 、 必ず し あベ ア リ ン グ 1 9 と シ ヤ フ 卜 Ί 7 ! に 絶緣ブ ッ シ ュ 1 8 を 入れる必要もな い 。 又 、 1フ ィ ャ電極 P を通電接触子 1 0 に 押圧 す る た め の ベ ア リ ン グ 1 9 は 、 回 転白 ίϋ の 口 — ラ で も 良い 。 さ ら に は 、 押 圧機溝 1 3 を板ばね 状の押圧部材の みで構成 し 、 ロ ー ラ を介する こ と な く 板ばね状の押圧部 材で 直接ワ ィ 極 P を通電接触子 1 0 に 押圧 す る よ に し て もよ い し か し 、 こ の 場合 、 押圧部材が ヮ ィ ャ 極の走行 と 共 に 回転 し な い か ら 、 所期 の 効 果 は達成さ れる が 、 該押圧部材 と ワ イ 電極 P 間 の摩擦が大ぎ く な る Insulation between the current-carrying contact 10 and the fibre-plate 16 is made so that power can be supplied to the current-carrying contact 10 without going through the mounting 16. It is not necessary to insert the absolute bushing 18 in the bearing 19 and the shaft 7! In addition, 1 off I turbocharger electrode P of the conductive contact 1 0 base of the eye that you pressed to A Li in g 1 9, the mouth of the times Utateshiro ίϋ - may be a La. Furthermore, the pressing machine groove 13 is constituted only by a leaf spring-shaped pressing member, and the wire pole P is directly applied to the wire pole P by the leaf spring-shaped pressing member without passing through a roller. Pressing to 0 may be performed, but in this case, the desired effect is achieved because the pressing member does not rotate with the traveling of the pole. The friction between the pressing member and the wire electrode P increases.
さ ら に 、 押圧機構 1 3 に お い て通電接触子 1 0 に ワ イ S2 Further, the pressing mechanism 13 is connected to the current-carrying contact 10 by wire. S2
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一 ん 一 One

Claims

- ϋ 求 の 範 -Scope of request
1 . ワ イ ヤ放電加 工装置 に お い て 、 ワ イ ヤ 電 11 に 力 を供給 す る た め の通電接触 子 に ワ イ ヤ 電極を 常時押 圧 す る 押圧手段を け て成る通電装置を 備え た こ と 1. In the wire discharge processing device, an energizing device that is provided with a pressing means that constantly presses the wire electrode on an energizing contact for supplying power to the wire electrode 11. With
5 を 特徴 と す る ワ イ ャ放 ¾ Π I 装 = 5 follower Lee catcher release ¾ [pi I instrumentation you wherein =
2 . ヒ 押 段 は ^ ^! 在 の π ― ラ を 含む 諳求の 範 囲第 1 項 ¾載の ヮ ι' 致電加 工 装匿 - 2 ヒ 押 段 は 段 段 段 は は 段 段 段 は 段 段 段 段
3 . 上記押圧手段は ワ イ ヤ ¾ ¾の送 り 方向 に の み回 転 可 能な π — / を ^ む； i 求の範固 第 Ί 項記載の ワ イ ヤ3. The above-mentioned pressing means has a π- / which is rotatable only in the direction in which the wire is fed; i.
1 0 放 ¾ ¾ ェ装置。 10 Release device.
. 1: 記押 EE 手段 は 、 ί ·ΐ通電装置 に お い て 該押圧手 設 よ り ¾ ¾则 に 配 さ れ た 周辺部材 と 絶緣部材で電気 的 に絶緣 さ れ て い る 求 の 範囲 第 1 項 、 第 2 項 、 又 は第 3 ΙΠ Π ¾ 'Ρ> -/ f ：  1: The pressing EE means is a part of the electric power supply device which is electrically isolated by a peripheral member and an insulating member which are arranged on the vehicle by the pressing mechanism. 1st, 2nd, or 3rd ¾ ¾ ¾ 'Ρ>-/ f:
^ ¾ ¾ ¾ ェ  ^ ¾ ¾ ¾ ¾ ¾
1 5 5 . 上 S押 ίϊ ΐ 段 は丄 》 M ¾ $¾ S. の取 f、i板 に 揺動 自 在 に - -端が 枢 ^ さ れ た レ バ ー と 、 ,¾ レ ぺ 一 の ¾ ¾} に 装 1 5 5. The upper S pusher is》 M M ¾ $ ¾ S. f, i-plate oscillates on its own--Lever with a pivoted end,, ¾ ぺ ぺ¾ の ¾}
^ さ れ た LJ ー ラ と 、 ¾ レ バ 一 を 介 し て 上 E π — ラ を 上 通電接触子 剡 に す る 扳ばね と を 痛え る 請 求 の範岡第 1 項 、 第 2 項 、 又 は第 3 項記載の ヮ ィ ャ 放 20 電加 ェ 装 S :， . Norioka No. 1 and No. 2 of the request to damage the LJ roller that has been made and the spring that makes the upper E π — la an upper conducting contact 剡 through the lever , or Wa I catcher discharge 20 conductive additive E instrumentation S according Section 3:,.
G . .ト S!押 1Ϊ 手段は .ヒ ^通電装置の 取付板 に 揺動 自 在 に 一 端 が ¾着 さ れ た レ パ ー と 、 ^ レ バ ー の 他端 に 装 着 さ れ た ！コ ー ラ と 、 該 レ パ 一 を介 し て 上 K ロ ー ラ を 上記通 ¾接触 ？側 に 押 f± す る 板ばね と を 備え る 請求 The G! G S! Pusher means is mounted on the mounting plate of the power supply device, one end of which is rocked by itself and the other end of the lever. ! Do you make contact with the upper K-roller through the reporter and the roller as described above? With a leaf spring pressed on the side
25 の 範囲第 4 項記載の ワ イ ヤ 放電如 ェ 装置 。 25. A wire discharge device according to claim 4, wherein the device is a wire discharge device.
BAD ORIGINAL BAD ORIGINAL
PCT/JP1987/000050 1986-01-27 1987-01-26 Wire-cut electric spark machine WO1987004379A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61/13683 1986-01-27
JP1368386A JPS62173119A (en) 1986-01-27 1986-01-27 Wire electric discharge machine

Publications (1)

Publication Number Publication Date
WO1987004379A1 true WO1987004379A1 (en) 1987-07-30

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ID=11839981

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Application Number Title Priority Date Filing Date
PCT/JP1987/000050 WO1987004379A1 (en) 1986-01-27 1987-01-26 Wire-cut electric spark machine

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JP (1) JPS62173119A (en)
WO (1) WO1987004379A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965426A (en) * 1988-03-08 1990-10-23 Giovanni Colombo Apparatus for instantaneously destroying used injection syringe needles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56121530U (en) * 1980-02-14 1981-09-16
JPS5761422A (en) * 1981-07-30 1982-04-13 Mitsubishi Electric Corp Spark erosion machine with cutting wire
JPS5761421A (en) * 1980-09-30 1982-04-13 Mitsubishi Electric Corp Wire feeder for wire cut discharge worker
JPS5962933U (en) * 1982-10-18 1984-04-25 吉江　勝廣 Wire cut electric discharge machining tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56121530U (en) * 1980-02-14 1981-09-16
JPS5761421A (en) * 1980-09-30 1982-04-13 Mitsubishi Electric Corp Wire feeder for wire cut discharge worker
JPS5761422A (en) * 1981-07-30 1982-04-13 Mitsubishi Electric Corp Spark erosion machine with cutting wire
JPS5962933U (en) * 1982-10-18 1984-04-25 吉江　勝廣 Wire cut electric discharge machining tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965426A (en) * 1988-03-08 1990-10-23 Giovanni Colombo Apparatus for instantaneously destroying used injection syringe needles

Also Published As

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