JPS63300823A - Wire tension applying device - Google Patents
Wire tension applying deviceInfo
- Publication number
- JPS63300823A JPS63300823A JP13143787A JP13143787A JPS63300823A JP S63300823 A JPS63300823 A JP S63300823A JP 13143787 A JP13143787 A JP 13143787A JP 13143787 A JP13143787 A JP 13143787A JP S63300823 A JPS63300823 A JP S63300823A
- Authority
- JP
- Japan
- Prior art keywords
- wire
- brake
- roller
- electromagnetic brake
- clutch
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims abstract description 14
- 238000003754 machining Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009763 wire-cut EDM Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009760 electrical discharge machining Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明はワイヤ放電加工装置においてワイヤに張力を
付与する装置に関し、特に、その張力を広い範囲に亘っ
て調整することができるものに関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for applying tension to a wire in a wire electrical discharge machining device, and particularly to a device that can adjust the tension over a wide range.
従来技術
ワイヤ放電加工装置のワイヤ張力付与装置はブレーキロ
ーラの周面にワイヤをピンチローうで挟みつけ、巻上げ
ローラのワイヤ巻上げ力に対するブレーキローラの抵抗
で付与されている。そしてブレーキローラへの制動トル
クは通常、電流制御される電磁ブレーキで与えられてい
る。The wire tension applying device of the conventional wire electric discharge machining apparatus pinches the wire around the circumferential surface of the brake roller using pinch rows, and applies the wire tension by the resistance of the brake roller against the wire winding force of the winding roller. Braking torque to the brake roller is usually provided by an electromagnetic brake that is controlled by current.
しかし、電磁ブレーキは内部に収められたいわゆるパウ
ダーが大気中の湿気によって影響を受は制動特性が変化
しやすいので、ケーシングからブレーキシャフトが突出
する個所には厳重なシールが施され、このシールによる
摩擦力によっても制動トルクが発生している。そして、
電磁ブレーキでは制動トルクが大きなものほどシールの
摩擦力も大きくなる。However, the braking characteristics of electromagnetic brakes tend to change due to the so-called powder stored inside them being affected by moisture in the atmosphere, so a strict seal is applied to the part where the brake shaft protrudes from the casing. Braking torque is also generated by frictional force. and,
In electromagnetic brakes, the greater the braking torque, the greater the frictional force of the seal.
したがって、最近のワイヤ放電加工装置のようにワイヤ
に大張力をかけることができるものでは、前記のように
電磁ブレーキのシール摩擦力による調整のできない制動
トルクが災いして小張力のワイヤで工作をできない難点
がある。Therefore, in machines such as recent wire electrical discharge machining machines that can apply large tension to the wire, the braking torque that cannot be adjusted due to the seal friction force of the electromagnetic brake may cause machining with a small tension wire. There is a drawback that it cannot be done.
ちなみに、放電加工装置で用いるワイヤは大体下表のと
おりであるが、■、■のワイヤではその適正張力がすで
に大型の電磁ブレーキにおけるシ−ルｒ！ｉ擦力による
制動トルクとほぼ等しいかすでに下回っており、この電
磁ブレーキを備えた加工装置ではこれらのワイヤを用い
ることができない。By the way, the wires used in electrical discharge machining equipment are generally as shown in the table below, and the wires marked with ■ and ■ have already reached the appropriate tension for seals in large electromagnetic brakes! This is almost equal to or already lower than the braking torque due to the friction force, and these wires cannot be used in processing equipment equipped with this electromagnetic brake.
ワイヤφ−線材 張力適正
■ ０．２ ８ｓ ８００〜１２００（１■
０．１４ Ｂｓ ４００〜８００■ ０．
Ｉ Ｂｓ ２００〜４００■ ０．０５
Ｗ １５０〜２００発明が解決しようと
する問題点
この発明はワイヤに対する張力調整を広い範囲で行うこ
とができる、ワイヤ放電加工装置のワイヤ張力付与装置
の提供を課題とする。Wire φ - wire rod tension appropriate ■ 0.2 8s 800~1200 (1■
0.14 Bs 400~800■ 0.
I Bs 200~400■ 0.05
W 150-200 Problems to be Solved by the Invention It is an object of the present invention to provide a wire tensioning device for a wire electric discharge machining machine, which can adjust the tension on the wire over a wide range.
問題を解決するための手段
ワイヤ放電加工装置におけるワイヤ張力付与装置を、大
トルク電磁ブレーキの軸にクラッチを介してブレーキロ
ーラ接続し、これと小トルク電磁ブレーキの軸に接続さ
れたピンチローラとでワイヤを挟みつけ、クラッチの入
切手段を備えた構成とし、この張力付与装置を巻上げロ
ーラに対しワークを挟んだ上流側に配置する。Means for Solving the Problem A wire tensioning device in a wire electrical discharge machining device is connected to a brake roller via a clutch to the shaft of a large-torque electromagnetic brake, and a pinch roller is connected to the shaft of a small-torque electromagnetic brake. The tension applying device is arranged upstream of the winding roller with the work sandwiched between the wires and the clutch on/off means.
作 用
電磁ブレーキは調整された制動力を発生し、ブレーキロ
ーラとピンチローラはワイヤに制動力を付与し、また、
クラッチはブレーキローラへの大トルク電磁ブレーキの
制動力伝達を断続する。Operation The electromagnetic brake generates a regulated braking force, the brake roller and pinch roller apply braking force to the wire, and
The clutch interrupts transmission of the braking force of the large torque electromagnetic brake to the brake roller.
実施例
第１図はワイヤ放電加工装置のコラム１とワーク２部分
を概略的に示したものでワイヤ３は、送り出しボビン４
からピンチローラ５とブレーキローラ６の間、上プーリ
７、下プーリ８および巻上げローラ９などを経て巻取り
ボビン１０に至る。Embodiment FIG. 1 schematically shows the column 1 and workpiece 2 parts of a wire electrical discharge machining apparatus.
From there, it reaches the winding bobbin 10 via the upper pulley 7, lower pulley 8, winding roller 9, etc. between the pinch roller 5 and the brake roller 6.
ワーク２は上下のプーリ７．８間に配置されてその近辺
にワイヤガイド１１．１１と給電装置１２が配され、ま
た、ピンチローラ５は小トルクの電磁ブレーキ１３の軸
に、ブレーキローラー６はクラッチ１４を介して大トル
クの電磁ブレーキ１５に接続している。これらピンチロ
ーラ５．小］・ルクの電磁ブレーキ１３．ブレーキロー
ラー６クラツチ１４および大トルクの電磁ブレーキ１５
はワイヤ張力付与装置１６を構成し、図のように巻上げ
ローラ９に対し、ワーク２を挟んだ上流側（送り出しボ
ビン側）に配置される。なお、符号１７はワイヤ断線検
出装置、同１８は加工水はねかけノズルを示す。また、
巻取りボビン１０と巻上げローラ９はモータで駆動回転
され、ワイヤの張力は巻上げローラ９の巻きとり力に対
する館記張力付与装置１６の抵抗（制動力）で付与され
る。The workpiece 2 is placed between the upper and lower pulleys 7.8, and the wire guide 11.11 and the power supply device 12 are placed in the vicinity thereof.The pinch roller 5 is placed on the shaft of the small torque electromagnetic brake 13, and the brake roller 6 is placed on the shaft of the small torque electromagnetic brake 13. It is connected to a large torque electromagnetic brake 15 via a clutch 14. These pinch rollers5. Small] Luk's electromagnetic brake 13. Brake roller 6 clutch 14 and large torque electromagnetic brake 15
constitutes a wire tension applying device 16, which is arranged on the upstream side (on the delivery bobbin side) with respect to the winding roller 9 across the workpiece 2, as shown in the figure. The reference numeral 17 indicates a wire breakage detection device, and the reference numeral 18 indicates a processing water splash nozzle. Also,
The winding bobbin 10 and the winding roller 9 are driven and rotated by a motor, and the tension of the wire is applied by the resistance (braking force) of the tension applying device 16 against the winding force of the winding roller 9.
そして、今ワイヤ３に大きな張力をかけて加工を行うと
きは、クラッチ１４を入れてブレーキローラ６を大トル
クの電磁ブレーキ１５に接続し、ワイヤに対する制動力
を、ビンブローク５側の小トルク電磁ブレーキ１３の制
動力と合せワイヤに付加する。この場合にワイヤに付加
できる制動力の最小は、大トルクおよび小トルクの［ｉ
ブレーキ１５．１３におけるシール摩擦力に基づいた制
動力の合計であり、最大は両電磁ブレーキ１３゜１５が
発揮しうる制動力の合計で、その間は各電磁ブレーキ１
３．１５への電流を制御することにより任意に調整する
ことができる。逆に、比較的小さな、大トルク電磁ブレ
ーキ１５のシールｒｌｌ！！ｇ力に基づく張力より小さ
な範囲でワイヤを使用する場合は、前記のクラッチ１４
を切って、ブレーキローラ６が自由回転するようにする
。すると、大トルク電磁ブレーキ１５側のシール摩擦力
は作用しないから、この場合ワイヤに付加できる制動力
は最小が小トルク電磁ブレーキ１３におけるシールＩ！
Ｊｔｌｌ力に基づくものであり、これからこの電磁ブレ
ーキ１３が発揮できる最大のυ１＃Ｊ力まで該ブレーキ
に対する供給電流を１ｔｌｌ ＩＩすることにより任意
に調整することができる。When processing the wire 3 by applying a large tension, the clutch 14 is engaged and the brake roller 6 is connected to the large torque electromagnetic brake 15, and the braking force on the wire is transferred to the small torque electromagnetic brake on the side of the bin brake 5. Add the braking force of 13 to the matching wire. In this case, the minimum braking force that can be applied to the wire is [i
It is the total braking force based on the seal friction force in brake 15.13, and the maximum is the total braking force that can be exerted by both electromagnetic brakes 13°15.
It can be arbitrarily adjusted by controlling the current to 3.15. On the contrary, the relatively small, large torque electromagnetic brake 15 seal rll! ! When using the wire in a range smaller than the tension based on g-force, use the clutch 14 described above.
to allow the brake roller 6 to rotate freely. Then, since the seal friction force on the large torque electromagnetic brake 15 side does not act, the minimum braking force that can be added to the wire in this case is the seal I on the small torque electromagnetic brake 13!
This is based on the Jtll force, and can be arbitrarily adjusted from this point up to the maximum υ1#J force that this electromagnetic brake 13 can exert by increasing the current supplied to the brake by 1tll II.
なお、ピンチローラ５と小トルク電磁ブレーキ１３との
間にもクラッチを介在して、大トルク電磁ブレーキ１５
だけで制動力を付与する範囲を設定することもできる。Note that a clutch is also interposed between the pinch roller 5 and the small torque electromagnetic brake 13, and the large torque electromagnetic brake 15
You can also set the range to which braking force is applied.
発明の効果
ワイヤに広い範囲の調整幅で張力を付与することができ
、ワイヤ放電加工装置を種々のワイヤ、種々の適正なワ
イヤ張力による加工に適応させることができる。Effects of the Invention Tension can be applied to the wire in a wide adjustment range, and the wire electrical discharge machining apparatus can be adapted to machining with various wires and various appropriate wire tensions.
第１図は要部を概略的に示す斜視図、第２図はワイヤ張
力付与装置の機構図である。
１・・・コラム、２・・・ワーク、３・・・ワイヤ、４
・・・送出しボビン、５・・・ピンチローラ、６・・・
ブレーキローラ、７・・・上プーリ、８・・・下プーリ
、９・・・巻上げローラ、１０・・・巻取りボビン、１
１・・・ワイヤガイド、１２・・・給電装置、１３・・
・小トルク電磁ブレーキ、１４・・・クラッチ、１５・
・・大トルク電磁ブレーキ、１６・・・ワイヤ張力付与
装置、１７・・・ワイヤ断線検出装置、１８・・・加工
水のはねかけノズル。
１４タラッナFIG. 1 is a perspective view schematically showing the main parts, and FIG. 2 is a mechanical diagram of the wire tensioning device. 1...Column, 2...Work, 3...Wire, 4
...Feeding bobbin, 5...Pinch roller, 6...
Brake roller, 7... Upper pulley, 8... Lower pulley, 9... Winding roller, 10... Winding bobbin, 1
1...Wire guide, 12...Power supply device, 13...
・Small torque electromagnetic brake, 14...Clutch, 15.
... Large torque electromagnetic brake, 16... Wire tension applying device, 17... Wire breakage detection device, 18... Processing water splash nozzle. 14 tarana
Claims (1)
大トルク電磁ブレーキの軸にクラッチを介して接続され
たブレーキローラと小トルク電磁ブレーキの軸に接続さ
れたピンチローラとでワイヤを挟みつけ、クラッチの入
切手段を備えたことを特徴とするワイヤ放電加工装置に
おけるワイヤ張力付与装置。It is located upstream from the winding roller across the workpiece,
A wire characterized in that the wire is sandwiched between a brake roller connected to the shaft of a large-torque electromagnetic brake via a clutch and a pinch roller connected to the shaft of a small-torque electromagnetic brake, and equipped with means for turning on and off the clutch. Wire tension applying device in electric discharge machining equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62131437A JPH08336B2 (en) | 1987-05-29 | 1987-05-29 | Wire tensioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62131437A JPH08336B2 (en) | 1987-05-29 | 1987-05-29 | Wire tensioning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63300823A true JPS63300823A (en) | 1988-12-08 |
| JPH08336B2 JPH08336B2 (en) | 1996-01-10 |
Family
ID=15057942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62131437A Expired - Lifetime JPH08336B2 (en) | 1987-05-29 | 1987-05-29 | Wire tensioning device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08336B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5026962A (en) * | 1988-02-10 | 1991-06-25 | Amada Company, Limited | Wire cutting electric discharge machine |
| US5268551A (en) * | 1991-08-12 | 1993-12-07 | Brother Kogyo Kabushiki Kaisha | Wire electrode positioning control device of electrical discharge wire-cutting machine |
| US5288966A (en) * | 1992-01-27 | 1994-02-22 | Brother Kogyo Kabushiki Kaisha | Wire-cut electrical discharge machine having wire electrode cutting device |
| US5422454A (en) * | 1992-06-26 | 1995-06-06 | Fanuc, Ltd. | Device for setting wire tension for a wire-cut electrical discharge machine |
| CN107127410A (en) * | 2017-07-11 | 2017-09-05 | 江苏冬庆数控机床有限公司 | A kind of molybdenum filament constant tension mechanism with forward and reverse detection function of electric spark linear cutting machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834722A (en) * | 1981-08-18 | 1983-03-01 | Fanuc Ltd | Wire-cutting electric discharge device |
| JPS60172422A (en) * | 1984-02-13 | 1985-09-05 | Inoue Japax Res Inc | Wire-cut electric discharge machining device |
-
1987
- 1987-05-29 JP JP62131437A patent/JPH08336B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5834722A (en) * | 1981-08-18 | 1983-03-01 | Fanuc Ltd | Wire-cutting electric discharge device |
| JPS60172422A (en) * | 1984-02-13 | 1985-09-05 | Inoue Japax Res Inc | Wire-cut electric discharge machining device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5026962A (en) * | 1988-02-10 | 1991-06-25 | Amada Company, Limited | Wire cutting electric discharge machine |
| US5268551A (en) * | 1991-08-12 | 1993-12-07 | Brother Kogyo Kabushiki Kaisha | Wire electrode positioning control device of electrical discharge wire-cutting machine |
| US5288966A (en) * | 1992-01-27 | 1994-02-22 | Brother Kogyo Kabushiki Kaisha | Wire-cut electrical discharge machine having wire electrode cutting device |
| US5422454A (en) * | 1992-06-26 | 1995-06-06 | Fanuc, Ltd. | Device for setting wire tension for a wire-cut electrical discharge machine |
| CN107127410A (en) * | 2017-07-11 | 2017-09-05 | 江苏冬庆数控机床有限公司 | A kind of molybdenum filament constant tension mechanism with forward and reverse detection function of electric spark linear cutting machine |
| CN107127410B (en) * | 2017-07-11 | 2023-04-25 | 江苏冬庆数控机床有限公司 | Molybdenum wire constant tension mechanism for wire cut electric discharge machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08336B2 (en) | 1996-01-10 |
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