JPH025532B2 - - Google Patents
Info
- Publication number
- JPH025532B2 JPH025532B2 JP12829982A JP12829982A JPH025532B2 JP H025532 B2 JPH025532 B2 JP H025532B2 JP 12829982 A JP12829982 A JP 12829982A JP 12829982 A JP12829982 A JP 12829982A JP H025532 B2 JPH025532 B2 JP H025532B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- pulley
- electrode
- electric discharge
- machining
- 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 12
- 239000002184 metal Substances 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000009760 electrical discharge machining Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 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
- B23H7/08—Wire electrodes
- B23H7/10—Supporting, winding or electrical connection of wire-electrode
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)
- Forwarding And Storing Of Filamentary Material (AREA)
Description
【発明の詳細な説明】
放電加工の一方の電極となる被加工物を放電加
工により切断機するための放電切断機の他方の電
極となるワイヤに負荷をかける装置であつて、電
動機により駆動される2つの無端ベルトを有し、
上記ワイヤは上記2つの電極の間に含まれる加工
域の出口において、上記2つの無端ベルトの間に
おいて搬送されるようにし、上記無端ベルトの間
においての上記ワイヤの駆動方向は上記加工域中
においての進行方向と異ならせるようにしたワイ
ヤ搬送装置は、従来から既知である。加工域を通
る間にワイヤに及ぼされる比較的大きな張力のた
めワイヤが一方の無端ベルトに強く押付けられ、
ワイヤが2つの無端ベルトの間に入る箇所におい
てその無端ベルトがすみやかに摩耗する。DETAILED DESCRIPTION OF THE INVENTION A device that applies a load to a wire that serves as the other electrode of an electrical discharge cutting machine for cutting a workpiece by electrical discharge machining, which serves as one electrode of electrical discharge machining, and is driven by an electric motor. It has two endless belts,
The wire is conveyed between the two endless belts at the exit of the processing area included between the two electrodes, and the driving direction of the wire between the endless belts is set within the processing area. Wire conveying devices in which the direction of movement of the wire is different from that of the wire are conventionally known. Due to the relatively large tension exerted on the wire during its passage through the processing zone, the wire is pressed tightly against one endless belt;
Where the wire enters between two endless belts, the endless belts quickly wear out.
本発明はこの不具合を解消することを目的とし
ている。本発明によるワイヤ負荷装置は、上記無
端ベルトのうち一方の無端ベルトと接触する金属
製のプーリーを有し、該プーリーは、上記ワイヤ
の方向変換を確保すると共に上記ワイヤを上記一
方の無端ベルトの方に押付けるように配設したこ
とを特徴とする。 The present invention aims to eliminate this problem. The wire loading device according to the present invention has a metal pulley in contact with one of the endless belts, the pulley ensuring direction change of the wire and directing the wire to the one of the endless belts. It is characterized by being placed so as to be pressed toward the side.
本発明のこの構成により加工域を出た後のワイ
ヤーの方向転換によつて生じる力は金属プーリー
に直接かかり、無端ベルトにはかからないのでこ
れまで問題となつた無端ベルトの摩耗は回避され
る。 With this configuration of the invention, the force generated by the change in direction of the wire after leaving the processing area is applied directly to the metal pulley and not to the endless belt, thereby avoiding the wear of the endless belt that has hitherto been a problem.
次に図面に示した本発明の好ましい実施例を参
照して詳述する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to preferred embodiments shown in the drawings.
第1図を参照すると、電極となるワイヤ1は送
出スプール2から送出され、転子3,4上に導か
れ、次に摺動電気接点5に当接し、案内部材6に
当接し、電極片である被加工物7の加工域に到達
する。ワイヤ1は被加工物7を通過した後に、案
内部材8及び摺動電気接点9に当接し、ベルトコ
ンベヤを形成する無端ベルト11と接続するプー
リー10の回りに掛けられる。 Referring to FIG. 1, a wire 1 serving as an electrode is fed out from a delivery spool 2, guided onto trochanters 3, 4, then abutted against a sliding electrical contact 5, abutted against a guide member 6, and then brought into contact with an electrode piece. The machining area of the workpiece 7 is reached. After passing through the workpiece 7, the wire 1 rests on a guide member 8 and a sliding electrical contact 9 and is looped around a pulley 10, which connects it to an endless belt 11 forming a belt conveyor.
無端ベルト11は転子12,13,14,1
5,16上を通過する。無端ベルト11自身は、
転子12,14の間において第2の無端ベルト1
7と接触し、無端ベルト17は転子18,19,
20上を通過する。 The endless belt 11 has trochanters 12, 13, 14, 1
Passing over 5,16. The endless belt 11 itself is
The second endless belt 1 between the trochanters 12 and 14
7, the endless belt 17 contacts the trochanters 18, 19,
Passing over 20.
ワイヤ1は、2つのベルト11,17の間に形
成される走路の出口において巻取りスプール21
に巻取られる。 The wire 1 is attached to a take-up spool 21 at the exit of a running path formed between the two belts 11, 17.
It is wound up.
ワイヤ1はその加工作用部分ができるだけ直線
状になるように、加工域内、即ち案内部材6,8
の間において強く緊張される。この加工の間に被
加工物7は、切断部22の所望の形状を得るため
に、図示しない周知の移動手段により、X軸方向
及びY軸方向に移動される。 The wire 1 is inserted into the processing area, that is, through the guide members 6 and 8, so that its working portion is as straight as possible.
There is a lot of tension between them. During this machining, the workpiece 7 is moved in the X-axis direction and the Y-axis direction by a well-known moving means (not shown) in order to obtain the desired shape of the cut portion 22.
加工磯においてワイヤ1に張力を与えるため
に、ワイヤ1は、送出スプール2と転子3,4と
のうちどちらか一方又は両方により制動される共
に、図示しない電動機により加工域から下流側に
駆動される。この電動機は、プーリー10、無端
ベルト11,17を掛けた転子のうちのどちらか
1つ又は巻取りスプール21のうち任意のものに
作用させることができる。 In order to apply tension to the wire 1 at the processing surface, the wire 1 is braked by one or both of the delivery spool 2 and the trochanters 3 and 4, and is also driven downstream from the processing area by an electric motor (not shown). be done. This electric motor can act on any one of the pulley 10, the rotors on which the endless belts 11, 17 are hung, or the take-up spool 21.
加工域の内部の通路と無端ベルト11,17の
間の通路との間において緊張されたワイヤ1の方
向を変えるために、ワイヤ1に適用すべき圧力
は、高圧に耐えられるように金属製としたプーリ
ー10によつて加えられる。プーリー10は、第
2図に示すように、そのリムと無端ベルト11と
の間にワイヤ1を締付けるために無端ベルト11
と接触する。 In order to change the direction of the tensioned wire 1 between the passage inside the processing area and the passage between the endless belts 11, 17, the pressure that must be applied to the wire 1 is made of metal so that it can withstand high pressures. is applied by a pulley 10. As shown in FIG.
come into contact with.
プーリー10と無端ベルト11との間のこの締
付けによつて、加工機中においてワイヤ1を直線
状態に保つのに必要な張力がワイヤ1に加えられ
る。 This tightening between the pulley 10 and the endless belt 11 applies the necessary tension to the wire 1 to keep it straight in the processing machine.
第3図に示した変形例によれば、プーリー10
は、ワイヤ1に加工電流を供給するためのブラシ
23と接触している。ブラシ23は既知のように
カーボンブラシとしてよく、スリーブ25中にお
いて摺動し、ばね24の圧力を受けている。この
場合にプーリー10は3つの機能を営なむ。即ち
プーリー10は第1に、比較的大きな機械的張力
を受けているワイヤ1の方向を変えさせるのに必
要な力を支持する。プーリー10は第2に、ワイ
ヤ1を無端ベルト11に締付ける力を及ぼすこと
を可能にする。最後にプーリー10はワイヤ1に
加工電流を供給する。 According to the modification shown in FIG.
is in contact with a brush 23 for supplying machining current to the wire 1. The brush 23 may be a carbon brush, as is known, and slides in a sleeve 25 and is under pressure from a spring 24. In this case, the pulley 10 performs three functions. That is, the pulley 10 primarily supports the force necessary to change the direction of the wire 1, which is under relatively high mechanical tension. The pulley 10 secondly makes it possible to exert a clamping force on the wire 1 to the endless belt 11. Finally, the pulley 10 supplies machining current to the wire 1.
加工電流は、任意の形態で配設された摺動接点
によりプーリー10に供給することができ、この
摺動接点はプーリー10の回転軸26と共働させ
ることができる。 The machining current can be supplied to the pulley 10 by sliding contacts arranged in any desired manner, which sliding contacts can cooperate with the axis of rotation 26 of the pulley 10.
第1図は放電切断機の電極となるワイヤの走路
を概略的に示す説明図、第2図は第1図に示した
放電切断機においてのワイヤの駆動形態を示す詳
細図、第3図は別の駆動形態を示す詳細図であ
る。
符号の説明、1……ワイヤ、7……被加工物、
10……プーリー、11,17……無端ベルト。
Fig. 1 is an explanatory diagram schematically showing the running path of the wire that becomes the electrode of the discharge cutting machine, Fig. 2 is a detailed diagram showing the driving form of the wire in the discharge cutting machine shown in Fig. 1, and Fig. 3 is FIG. 7 is a detailed diagram showing another driving form. Explanation of symbols, 1... wire, 7... workpiece,
10... Pulley, 11, 17... Endless belt.
Claims (1)
の電極となるワイヤとが形成している加工域の出
口において加工域におけるワイヤの進行方向と異
なる方向にワイヤを挟んで搬送する2つの無端ベ
ルトを有するワイヤ負荷装置を備える放電切断機
において、 前記のワイヤ負荷装置は一方の無端ベルトと接
触する金属プーリーを備え、このプーリーはワイ
ヤを方向転換するとともに、ワイヤを前記の一方
の無端ベルトに押付けるように配置されているこ
とを特徴とした放電切断機。 2 放電加工の一方の電極となる被加工物と他方
の電極となるワイヤとが形成している加工域の出
口において加工域におけるワイヤの進行方向と異
なる方向にワイヤを挟んで搬送する2つの無端ベ
ルトを有するワイヤ負荷装置を備える放電切断機
において、 前記のワイヤ負荷装置は一方の無端ベルトと接
触する金属プーリーと、加工電流をワイヤに供給
するため前記の金属プーリーと直接接触するブラ
シとを備え、前記のプーリーはワイヤを方向転換
するとともに、ワイヤを前記の一方の無端ベルト
に押付けるように配置されていることを特徴とし
た放電切断機。[Claims] 1. At the exit of a machining area formed by a workpiece serving as one electrode of electric discharge machining and a wire serving as the other electrode, the wire is sandwiched in a direction different from the traveling direction of the wire in the machining area. In an electric discharge cutting machine equipped with a wire loading device having two endless belts conveyed by one of the endless belts, said wire loading device comprises a metal pulley in contact with one of the endless belts, said pulley changing the direction of the wire and transporting the wire into the An electric discharge cutting machine characterized by being arranged so as to be pressed against one endless belt. 2 At the exit of the machining area formed by the workpiece that becomes one electrode of electric discharge machining and the wire that serves as the other electrode, two endless wires are conveyed across the wire in a direction different from the direction in which the wire travels in the machining area. In an electric discharge cutting machine equipped with a wire load device having a belt, the wire load device includes a metal pulley in contact with one of the endless belts, and a brush in direct contact with the metal pulley for supplying machining current to the wire. , wherein the pulley is arranged to change the direction of the wire and press the wire against the one endless belt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH484381A CH641991A5 (en) | 1981-07-24 | 1981-07-24 | Device for taking hold of the wire electrode of a machine for cutting using erosive electrical discharges |
CH4843/815 | 1981-07-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5828427A JPS5828427A (en) | 1983-02-19 |
JPH025532B2 true JPH025532B2 (en) | 1990-02-02 |
Family
ID=4283522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12829982A Granted JPS5828427A (en) | 1981-07-24 | 1982-07-22 | Device for applying load to wire of discharge cutter |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS5828427A (en) |
CH (1) | CH641991A5 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01103230A (en) * | 1987-10-15 | 1989-04-20 | Fanuc Ltd | Wire driving belt mechanism of wire cut electric discharge machine |
JP2783804B2 (en) * | 1988-02-10 | 1998-08-06 | 株式会社アマダ | Wire discharge device of wire cut electric discharge machine |
JPH02180525A (en) * | 1988-12-28 | 1990-07-13 | Fanuc Ltd | Electric discharging device for wire cut |
DE3912166A1 (en) * | 1989-04-13 | 1990-10-18 | Johannes Nennhuber | DEVICE FOR WIRE EDMING WITH A TOOL MILLING MACHINE |
JPH0326421A (en) * | 1989-06-24 | 1991-02-05 | Amada Washino Co Ltd | Wire cut electric discharge machine |
JPH04304303A (en) * | 1991-04-01 | 1992-10-27 | Mitsubishi Materials Corp | Cu-based sintered alloy electrode for electric igniter of internal combustion engine |
DE19503233A1 (en) * | 1994-02-15 | 1995-09-14 | Ona Electro Erosion | Wire traction mechanism for electro-erosion machine |
-
1981
- 1981-07-24 CH CH484381A patent/CH641991A5/en not_active IP Right Cessation
-
1982
- 1982-07-22 JP JP12829982A patent/JPS5828427A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5828427A (en) | 1983-02-19 |
CH641991A5 (en) | 1984-03-30 |
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