WO2022168440A1 - Wire electrical discharge machining apparatus and wire electrical discharge machining method - Google Patents

Wire electrical discharge machining apparatus and wire electrical discharge machining method Download PDF

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Publication number
WO2022168440A1
WO2022168440A1 PCT/JP2021/045665 JP2021045665W WO2022168440A1 WO 2022168440 A1 WO2022168440 A1 WO 2022168440A1 JP 2021045665 W JP2021045665 W JP 2021045665W WO 2022168440 A1 WO2022168440 A1 WO 2022168440A1
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Prior art keywords
wire
electric discharge
roller
workpiece
wire electrode
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PCT/JP2021/045665
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French (fr)
Japanese (ja)
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隆 光安
世史弘 伊東
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西部電機株式会社
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Publication of WO2022168440A1 publication Critical patent/WO2022168440A1/en

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    • 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
    • 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 electric discharge machine and a wire electric discharge machining method, and more particularly to a wire electric discharge machine that performs electric discharge machining on a workpiece using a wire electrode.
  • Patent Document 1 in a wire electric discharge machine, in order to machine the workpiece from the top to the bottom with an unconsumed wire surface, a rotating body is positioned below the workpiece and changes the feed direction of the wire electrode. Offsetting the axis of rotation to impart rotation about the axis to the wire electrode is described.
  • an object of the present invention is to provide a wire electric discharge machine or the like suitable for changing the wire surface for machining the workpiece from top to bottom while suppressing the influence on electric discharge machining.
  • a first aspect of the present invention is a wire electric discharge machine that performs electric discharge machining of a workpiece using a wire electrode, and includes a rotating mechanism that rotates around the wire electrode to change the surface of the wire electrode used for electric discharge machining. Prepare.
  • a second aspect of the present invention is the wire electric discharge machine of the first aspect, wherein the rotating mechanism includes a roller rotating mechanism rotating a roller for conveying the wire electrode, and/or the workpiece including a workpiece rotation mechanism that rotates the
  • a third aspect of the present invention is the wire electric discharge machine of the second aspect, comprising: a rotating roller for changing the conveying direction of the wire electrode after electric discharge machining; A discharge roller for winding the wire electrode is provided, and the roller rotation mechanism rotates the discharge roller.
  • a fourth aspect of the present invention is a wire electric discharge machining method in a wire electric discharge machine for electric discharge machining of a workpiece using a wire electrode, wherein a rotating mechanism provided in the wire electric discharge machine rotates around the wire electrode. It includes modifying the surface of the wire electrode used for electrical discharge machining.
  • a fifth aspect of the present invention is the wire electric discharge machining method of the fourth aspect, wherein the workpiece rotating mechanism included in the rotating mechanism includes a roller rotating mechanism for rotating a roller for conveying the wire electrode, and /or rotating the workpiece;
  • a sixth aspect of the present invention is the wire electric discharge machining method according to the fifth aspect, wherein the wire electric discharge machine comprises a rotating roller for changing the conveying direction of the wire electrode after electric discharge machining; A discharge roller for winding the wire electrode whose conveying direction has been changed is provided, and the roller rotation mechanism rotates the discharge roller.
  • a rotating mechanism that rotates about a wire electrode is used to machine a workpiece from top to bottom with a specific wire surface (e.g., a wire surface that is as unworn as possible) to obtain a machined surface. It is possible to stably improve accuracy and dimensional accuracy. Furthermore, by rotating the discharge roller as in the third side, the wire electrode does not directly rotate around the axis above and below the workpiece, and the influence on electric discharge machining can be suppressed.
  • FIG. 2 is a diagram showing an example of a specific configuration of a discharge roller 11 and a roller rotating mechanism 25 of FIG. 1;
  • FIG. 1 is a block diagram showing an example of the configuration of a wire electric discharge machine according to an embodiment of the present invention.
  • a wire electric discharge machine 1 includes a bobbin 3, a conveying section 5, an upper rotating roller 7, an electric discharge machining section 8, a lower rotating roller 9, a discharge roller 11, and a discharge box 13. , and an ejection drive unit 15 .
  • the electric discharge machining section 8 includes a table 19 and a workpiece moving mechanism 21 .
  • a workpiece 17 is present on the table 19 .
  • the wire electric discharge machine 1 has a rotating mechanism that rotates around the wire electrode.
  • the electrical discharge machining section 8 includes a workpiece rotation mechanism 23 .
  • the wire electric discharge machine 1 includes a roller rotating mechanism 25 .
  • the workpiece rotating mechanism 23 and the roller rotating mechanism 25 are examples of rotating mechanisms.
  • the invention of the present application may include at least one of the workpiece rotation mechanism 23 and the roller rotation mechanism 25 .
  • the wire electric discharge machine 1 performs electric discharge machining on the workpiece 17 using wire electrodes.
  • the wire electrode is pulled out from the bobbin 3 and reaches the upper rotating roller 7 via the conveying section 5 .
  • the conveying unit 5 includes, for example, drive rollers, brake rollers, and the like, and includes drive rollers that apply a driving force for pulling out the wire electrodes from the bobbins 3 and brake rollers that apply appropriate tension to the wire electrodes.
  • the upper rotating roller 7 faces downward in the direction in which the wire electrode is conveyed.
  • a wire electrode passes through the workpiece 17 for electrical discharge machining.
  • the wire electrode after electric discharge machining reaches the lower rotating roller 9 .
  • the lower rotating roller 9 changes the conveying direction of conveying the wire electrode to horizontal or the like.
  • the ejection drive unit 15 generates a driving force for ejecting the wire electrode after electrical discharge machining.
  • the discharge roller 11 gives the wire electrode a driving force for discharging the wire electrode.
  • the discharged wire electrode is collected by the discharge box 13 .
  • the workpiece moving mechanism 21 moves the workpiece 17 in the horizontal direction.
  • the table 19 is moved back and forth and left and right.
  • the workpiece rotation mechanism 23 rotates around the wire electrode to rotate the workpiece 17 by rotating the table 19 .
  • a workpiece rotation mechanism 23 allows the workpiece 17 to be rotated to leave unused portions of the surface to be EDM machined at the wire electrode.
  • the amount of rotation of the workpiece and the like can be realized by control such as a control program.
  • the roller rotation mechanism 25 rotates around the wire electrode to rotate the ejection roller 11 .
  • This allows the wire electrode to be rotated about its axis, so that the workpiece can be machined from top to bottom with an unconsumed wire surface.
  • the amount of rotation of the discharge roller and the like can be realized by control such as a control program. Since the lower rotating roller 9 exists between the workpiece 17 and the discharging roller 11, the rotation of the discharging roller 11 directly affects between the upper rotating roller 7 and the lower rotating roller 9. is not. Therefore, the rotating mechanism that rotates around the wire electrode can machine the workpiece from the top to the bottom with the unconsumed wire surface while suppressing the influence on electric discharge machining.
  • Fig. 2 shows an example of a specific configuration of a wire electric discharge machine.
  • a wire electrode pulled out from the bobbin 31 reaches the upper rotating roller 33 via various rollers.
  • the workpiece 35 is electro-discharge-machined by the wire electrode conveyed by the upper rotating roller 33 with the conveying direction changed downward.
  • the wire electrode after electric discharge machining reaches the lower rotating roller included in the lower member 37 .
  • the wire electrode whose conveying direction is changed to horizontal by the lower rotating roller is wound up by the discharge roller 39 and discharged, and is collected by the collection box 41 .
  • the rotation mechanism of the present invention rotates the workpiece around the wire electrode and/or rotates the discharge roller 39 .
  • FIG. 3 is a diagram showing an example of specific configurations of the table 19, workpiece moving mechanism 21, and workpiece rotating mechanism 23 in FIG.
  • the table portion 51 is a table on which a workpiece is placed.
  • the left-right direction moving part 53 can move the table part 51 in the left-right direction.
  • the front-back direction moving part 55 can move the table part 51 and the left-right direction moving part 53 in the front-back direction (horizontal direction and vertical direction).
  • the lateral movement section 53 and the longitudinal movement section 55 are an example of the workpiece movement mechanism 21 shown in FIG.
  • the workpiece rotation mechanism 57 rotates the table portion 51, the horizontal movement portion 53, and the front/rear movement portion 55 about the wire electrode.
  • FIG. 4 is a diagram showing an example of specific configurations of the discharge roller 11 and the roller rotation mechanism 25 in FIG.
  • a pair of discharge rollers 61 1 and 61 2 sandwich the wire electrode to be discharged.
  • a circular portion 63 can rotate about the wire electrode while fixing the ejection rollers 61 1 and 61 2 at the center.
  • the rotational force applying section 65 rotates the circular section 63 .
  • the wire electrode can be rotated about its axis while applying a driving force for discharging by the discharge roller 11 .

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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

Provided is a wire electrical discharge machining apparatus suitable for minimizing impact on electrical discharge machining and changing a wire surface for machining from the top to the bottom of a workpiece. A wire electrical discharge machining apparatus 1 that uses a wire electrode to perform electrical discharge machining on a workpiece comprises: a rotating mechanism that rotates around the wire electrode and changes the surface of the wire electrode used in the electrical discharge machining. The rotating mechanism includes, for example, a roller-rotating mechanism 25 that rotates a roller for conveying the wire electrode, and a workpiece-rotating mechanism 23 that rotates the workpiece.

Description

ワイヤ放電加工機及びワイヤ放電加工方法Wire electric discharge machine and wire electric discharge machining method
　本発明は、ワイヤ放電加工機及びワイヤ放電加工方法に関し、特に、ワイヤ電極を用いて工作物を放電加工するワイヤ放電加工機等に関する。 The present invention relates to a wire electric discharge machine and a wire electric discharge machining method, and more particularly to a wire electric discharge machine that performs electric discharge machining on a workpiece using a wire electrode.
　特許文献１には、ワイヤ放電加工機において、工作物の上から下までを未消耗のワイヤ表面で加工するために、工作物の下に位置してワイヤ電極の送り方向を変更する回転体の回転軸をずらして、ワイヤ電極に軸周りの回転を付与することが記載されている。 In Patent Document 1, in a wire electric discharge machine, in order to machine the workpiece from the top to the bottom with an unconsumed wire surface, a rotating body is positioned below the workpiece and changes the feed direction of the wire electrode. Offsetting the axis of rotation to impart rotation about the axis to the wire electrode is described.
特許第６７５４１６５号公報Japanese Patent No. 6754165
　しかしながら、特許文献１記載の技術では、下に位置する回転体によってワイヤ電極に軸周りの回転を付与させている。回転軸がずれたローラを通る際に生じるワイヤ電極の振動が、工作物の加工面精度に悪影響を与えることが予想される。 However, in the technique described in Patent Document 1, the rotation around the axis is imparted to the wire electrode by the rotating body located below. Vibration of the wire electrode that occurs when the wire passes through rollers whose rotation axes are shifted is expected to adversely affect the machined surface accuracy of the workpiece.
　よって、本発明は、放電加工に与える影響を抑えて、工作物の上から下までを加工するためのワイヤ表面を変更することに適したワイヤ放電加工機等を提供することを目的とする。 Therefore, an object of the present invention is to provide a wire electric discharge machine or the like suitable for changing the wire surface for machining the workpiece from top to bottom while suppressing the influence on electric discharge machining.
　本願発明の第１の側面は、ワイヤ電極を用いて工作物を放電加工するワイヤ放電加工機において、前記ワイヤ電極を中心として回転して放電加工に使用するワイヤ電極の表面を変更する回転機構を備える。 A first aspect of the present invention is a wire electric discharge machine that performs electric discharge machining of a workpiece using a wire electrode, and includes a rotating mechanism that rotates around the wire electrode to change the surface of the wire electrode used for electric discharge machining. Prepare.
　本願発明の第２の側面は、第１の側面のワイヤ放電加工機であって、前記回転機構は、前記ワイヤ電極を搬送するためのローラを回転するローラ回転機構、及び／又は、前記工作物を回転する工作物回転機構を含む。 A second aspect of the present invention is the wire electric discharge machine of the first aspect, wherein the rotating mechanism includes a roller rotating mechanism rotating a roller for conveying the wire electrode, and/or the workpiece including a workpiece rotation mechanism that rotates the
　本願発明の第３の側面は、第２の側面のワイヤ放電加工機であって、放電加工後の前記ワイヤ電極の搬送方向を変更する回転ローラと、前記回転ローラにより搬送方向が変更された前記ワイヤ電極を巻き取る排出ローラを備え、前記ローラ回転機構は前記排出ローラを回転する。 A third aspect of the present invention is the wire electric discharge machine of the second aspect, comprising: a rotating roller for changing the conveying direction of the wire electrode after electric discharge machining; A discharge roller for winding the wire electrode is provided, and the roller rotation mechanism rotates the discharge roller.
　本願発明の第４の側面は、ワイヤ電極を用いて工作物を放電加工するワイヤ放電加工機におけるワイヤ放電加工方法において、前記ワイヤ放電加工機が備える回転機構が前記ワイヤ電極を中心に回転して放電加工に使用するワイヤ電極の表面を変更するステップを含む。 A fourth aspect of the present invention is a wire electric discharge machining method in a wire electric discharge machine for electric discharge machining of a workpiece using a wire electrode, wherein a rotating mechanism provided in the wire electric discharge machine rotates around the wire electrode. It includes modifying the surface of the wire electrode used for electrical discharge machining.
　本願発明の第５の側面は、第４の側面のワイヤ放電加工方法であって、前記回転機構が含む工作物回転機構は、前記ワイヤ電極を搬送するためのローラを回転するローラ回転機構、及び／又は、前記工作物を回転する。 A fifth aspect of the present invention is the wire electric discharge machining method of the fourth aspect, wherein the workpiece rotating mechanism included in the rotating mechanism includes a roller rotating mechanism for rotating a roller for conveying the wire electrode, and /or rotating the workpiece;
　本願発明の第６の側面は、第５の側面のワイヤ放電加工方法であって、前記ワイヤ放電加工機は、放電加工後の前記ワイヤ電極の搬送方向を変更する回転ローラと、前記回転ローラにより搬送方向が変更された前記ワイヤ電極を巻き取る排出ローラを備え、前記ローラ回転機構は前記排出ローラを回転する。 A sixth aspect of the present invention is the wire electric discharge machining method according to the fifth aspect, wherein the wire electric discharge machine comprises a rotating roller for changing the conveying direction of the wire electrode after electric discharge machining; A discharge roller for winding the wire electrode whose conveying direction has been changed is provided, and the roller rotation mechanism rotates the discharge roller.
　本願発明の各側面によれば、ワイヤ電極を中心として回転する回転機構により、工作物の上から下までを特定のワイヤ表面（例えば、できるだけ消耗されていないワイヤ表面）で加工して、加工面精度、寸法精度などの向上を安定実現することができる。さらに、第３の側面にあるように排出ローラを回転することにより、工作物の上下では直接にワイヤ電極に対して軸周りの回転を生じさせず、放電加工に与える影響を抑えることができる。 According to each aspect of the present invention, a rotating mechanism that rotates about a wire electrode is used to machine a workpiece from top to bottom with a specific wire surface (e.g., a wire surface that is as unworn as possible) to obtain a machined surface. It is possible to stably improve accuracy and dimensional accuracy. Furthermore, by rotating the discharge roller as in the third side, the wire electrode does not directly rotate around the axis above and below the workpiece, and the influence on electric discharge machining can be suppressed.
本願発明の実施の形態に係るワイヤ放電加工機の構成の一例を示すブロック図である。It is a block diagram showing an example of composition of a wire electric discharge machine concerning an embodiment of the invention in this application. 一般的なワイヤ放電加工機の具体的な構成の一例を示す。An example of a specific configuration of a general wire electric discharge machine is shown. 図１のテーブル１９、工作物移動機構２１及び工作物回転機構２３の具体的な構成の一例を示す図である。It is a figure which shows an example of the concrete structure of the table 19 of FIG. 1, the workpiece moving mechanism 21, and the workpiece rotating mechanism 23. FIG. 図１の排出ローラ１１及びローラ回転機構２５の具体的な構成の一例を示す図である。2 is a diagram showing an example of a specific configuration of a discharge roller 11 and a roller rotating mechanism 25 of FIG. 1; FIG.
　以下、図面を参照して、本願発明の実施例について述べる。なお、本願発明の実施の形態は、以下の実施例に限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, embodiment of this invention is not limited to the following examples.
　図１は、本願発明の実施の形態に係るワイヤ放電加工機の構成の一例を示すブロック図である。 FIG. 1 is a block diagram showing an example of the configuration of a wire electric discharge machine according to an embodiment of the present invention.
　図１を参照して、ワイヤ放電加工機１は、ボビン３と、搬送部５と、上側回転ローラ７と、放電加工部８と、下側回転ローラ９と、排出ローラ１１と、排出ボックス１３と、排出駆動部１５を備える。放電加工部８は、テーブル１９と、工作物移動機構２１を備える。工作物１７は、テーブル１９の上に存在する。 Referring to FIG. 1, a wire electric discharge machine 1 includes a bobbin 3, a conveying section 5, an upper rotating roller 7, an electric discharge machining section 8, a lower rotating roller 9, a discharge roller 11, and a discharge box 13. , and an ejection drive unit 15 . The electric discharge machining section 8 includes a table 19 and a workpiece moving mechanism 21 . A workpiece 17 is present on the table 19 .
　さらに、ワイヤ放電加工機１は、ワイヤ電極を中心に回転する回転機構を備える。放電加工部８は、工作物回転機構２３を備える。ワイヤ放電加工機１は、ローラ回転機構２５を備える。工作物回転機構２３及びローラ回転機構２５は、回転機構の一例である。本願発明は、工作物回転機構２３とローラ回転機構２５の少なくとも一方を備えるものであってもよい。 Furthermore, the wire electric discharge machine 1 has a rotating mechanism that rotates around the wire electrode. The electrical discharge machining section 8 includes a workpiece rotation mechanism 23 . The wire electric discharge machine 1 includes a roller rotating mechanism 25 . The workpiece rotating mechanism 23 and the roller rotating mechanism 25 are examples of rotating mechanisms. The invention of the present application may include at least one of the workpiece rotation mechanism 23 and the roller rotation mechanism 25 .
　ワイヤ放電加工機１は、ワイヤ電極を利用して工作物１７を放電加工する。 The wire electric discharge machine 1 performs electric discharge machining on the workpiece 17 using wire electrodes.
　ワイヤ電極は、ボビン３から引き出されて、搬送部５を経由して上側回転ローラ７に到達する。搬送部５は、例えば、駆動ローラや、ブレーキローラなどを含み、ボビン３からワイヤ電極を引き出すための駆動力を与える駆動ローラや、ワイヤ電極に適切なテンションを与えるブレーキローラなどを含む。 The wire electrode is pulled out from the bobbin 3 and reaches the upper rotating roller 7 via the conveying section 5 . The conveying unit 5 includes, for example, drive rollers, brake rollers, and the like, and includes drive rollers that apply a driving force for pulling out the wire electrodes from the bobbins 3 and brake rollers that apply appropriate tension to the wire electrodes.
　上側回転ローラ７は、ワイヤ電極を搬送する搬送方向を下にする。ワイヤ電極は、放電加工のために工作物１７を通る。放電加工後のワイヤ電極は、下側回転ローラ９に到達する。下側回転ローラ９は、ワイヤ電極を搬送する搬送方向を水平などに変更する。 The upper rotating roller 7 faces downward in the direction in which the wire electrode is conveyed. A wire electrode passes through the workpiece 17 for electrical discharge machining. The wire electrode after electric discharge machining reaches the lower rotating roller 9 . The lower rotating roller 9 changes the conveying direction of conveying the wire electrode to horizontal or the like.
　排出駆動部１５は、放電加工後のワイヤ電極を排出するための駆動力を生じる。排出ローラ１１は、ワイヤ電極を排出するための駆動力をワイヤ電極に与える。排出されたワイヤ電極は、排出ボックス１３により回収される。 The ejection drive unit 15 generates a driving force for ejecting the wire electrode after electrical discharge machining. The discharge roller 11 gives the wire electrode a driving force for discharging the wire electrode. The discharged wire electrode is collected by the discharge box 13 .
　放電加工部８において、工作物移動機構２１は、工作物１７を水平方向に移動させるものである。例えばテーブル１９を前後左右に移動させる。工作物回転機構２３は、ワイヤ電極を中心として回転して、テーブル１９を回転させることにより工作物１７を回転させる。工作物回転機構２３により工作物１７を回転させて、ワイヤ電極において放電加工する表面を未使用の部分にすることができる。工作物の回転量などは、制御プログラムなどの制御によって実現することができる。 In the electric discharge machining section 8, the workpiece moving mechanism 21 moves the workpiece 17 in the horizontal direction. For example, the table 19 is moved back and forth and left and right. The workpiece rotation mechanism 23 rotates around the wire electrode to rotate the workpiece 17 by rotating the table 19 . A workpiece rotation mechanism 23 allows the workpiece 17 to be rotated to leave unused portions of the surface to be EDM machined at the wire electrode. The amount of rotation of the workpiece and the like can be realized by control such as a control program.
　ローラ回転機構２５は、ワイヤ電極を中心として回転して、排出ローラ１１を回転させる。これによりワイヤ電極に軸周りの回転を付与することができ、工作物の上から下までを未消耗のワイヤ表面で加工することができる。排出ローラの回転量などは、制御プログラムなどの制御によって実現することができる。工作物１７と排出ローラ１１との間には下側回転ローラ９が存在するため、排出ローラ１１の回転は、直接には上側回転ローラ７と下側回転ローラ９との間に影響を与えるものではない。そのため、ワイヤ電極を中心として回転する回転機構により、放電加工に与える影響を抑えつつ、工作物の上から下までを未消耗のワイヤ表面で加工することができる。 The roller rotation mechanism 25 rotates around the wire electrode to rotate the ejection roller 11 . This allows the wire electrode to be rotated about its axis, so that the workpiece can be machined from top to bottom with an unconsumed wire surface. The amount of rotation of the discharge roller and the like can be realized by control such as a control program. Since the lower rotating roller 9 exists between the workpiece 17 and the discharging roller 11, the rotation of the discharging roller 11 directly affects between the upper rotating roller 7 and the lower rotating roller 9. is not. Therefore, the rotating mechanism that rotates around the wire electrode can machine the workpiece from the top to the bottom with the unconsumed wire surface while suppressing the influence on electric discharge machining.
　図２は、ワイヤ放電加工機の具体的な構成の一例を示す。ボビン３１から引き出されたワイヤ電極は、各種ローラを経由して上側回転ローラ３３に到達する。上側回転ローラ３３により搬送する搬送方向を下に変更されたワイヤ電極により、工作物３５を放電加工する。放電加工後のワイヤ電極は、下側部材３７に含まれる下側回転ローラに到達する。下側回転ローラにより搬送する搬送方向を水平に変更されたワイヤ電極は、排出ローラ３９により巻き取られて排出され、回収ボックス４１により回収される。 Fig. 2 shows an example of a specific configuration of a wire electric discharge machine. A wire electrode pulled out from the bobbin 31 reaches the upper rotating roller 33 via various rollers. The workpiece 35 is electro-discharge-machined by the wire electrode conveyed by the upper rotating roller 33 with the conveying direction changed downward. The wire electrode after electric discharge machining reaches the lower rotating roller included in the lower member 37 . The wire electrode whose conveying direction is changed to horizontal by the lower rotating roller is wound up by the discharge roller 39 and discharged, and is collected by the collection box 41 .
　本願発明の回転機構は、ワイヤ電極を中心に工作物を回転させ及び／又は排出ローラ３９を回転させる。 The rotation mechanism of the present invention rotates the workpiece around the wire electrode and/or rotates the discharge roller 39 .
　図３は、図１のテーブル１９、工作物移動機構２１及び工作物回転機構２３の具体的な構成の一例を示す図である。中心の上下方向に空間があり、この空間をワイヤ電極が通過する。テーブル部５１は、工作物を載置するテーブルである。左右方向移動部５３は、テーブル部５１を左右方向に移動させることができる。前後方向移動部５５は、テーブル部５１及び左右方向移動部５３を、前後方向（左右方向に水平に垂直な方向）に移動させることができる。左右方向移動部５３及び前後方向移動部５５が、図１の工作物移動機構２１の一例である。工作物回転機構５７は、テーブル部５１、左右方向移動部５３及び前後方向移動部５５を、ワイヤ電極を中心に回転させる。 FIG. 3 is a diagram showing an example of specific configurations of the table 19, workpiece moving mechanism 21, and workpiece rotating mechanism 23 in FIG. There is a space in the vertical direction of the center, and the wire electrode passes through this space. The table portion 51 is a table on which a workpiece is placed. The left-right direction moving part 53 can move the table part 51 in the left-right direction. The front-back direction moving part 55 can move the table part 51 and the left-right direction moving part 53 in the front-back direction (horizontal direction and vertical direction). The lateral movement section 53 and the longitudinal movement section 55 are an example of the workpiece movement mechanism 21 shown in FIG. The workpiece rotation mechanism 57 rotates the table portion 51, the horizontal movement portion 53, and the front/rear movement portion 55 about the wire electrode.
　図４は、図１の排出ローラ１１及びローラ回転機構２５の具体的な構成の一例を示す図である。一対の排出ローラ６１1及び６１2が、排出するワイヤ電極を挟む。円形部６３が、中心に排出ローラ６１1及び６１2を固定しつつ、ワイヤ電極を中心に回転することができる。回転力付与部６５は、円形部６３を回転させる。これにより、排出ローラ１１により排出する駆動力を与えつつ、ワイヤ電極に対して軸周りの回転を与えることができる。 FIG. 4 is a diagram showing an example of specific configurations of the discharge roller 11 and the roller rotation mechanism 25 in FIG. A pair of discharge rollers 61 1 and 61 2 sandwich the wire electrode to be discharged. A circular portion 63 can rotate about the wire electrode while fixing the ejection rollers 61 1 and 61 2 at the center. The rotational force applying section 65 rotates the circular section 63 . As a result, the wire electrode can be rotated about its axis while applying a driving force for discharging by the discharge roller 11 .
　１　ワイヤ放電加工機、３　ボビン、５　搬送部、７　上側回転ローラ、８　放電加工部、９　下側回転ローラ、１１　排出ローラ、１３　排出ボックス、１５　排出駆動部、１７　工作物、１９　テーブル、２１　工作物移動機構、２３　工作物回転機構、２５　ローラ回転機構、３１　ボビン、３３　上側回転ローラ、３５　工作物、３７　下側部材、３９　排出ローラ、４１　回収ボックス、５１　テーブル、５３　左右方向移動部、５５　前後方向移動部、５７　工作物回転機構、６１　排出ローラ、６３　円形部、６５　回転力付与部 1 wire electric discharge machine, 3 bobbin, 5 conveying unit, 7 upper rotating roller, 8 electric discharge processing unit, 9 lower rotating roller, 11 discharge roller, 13 discharge box, 15 discharge drive unit, 17 workpiece, 19 table, 21 Workpiece moving mechanism, 23 Workpiece rotation mechanism, 25 Roller rotation mechanism, 31 Bobbin, 33 Upper rotating roller, 35 Workpiece, 37 Lower member, 39 Ejection roller, 41 Collection box, 51 Table, 53 Left-right direction moving part, 55 Back-and-forth moving part, 57 Workpiece rotation mechanism, 61 Discharge roller, 63 Circular part, 65 Rotational force application part

Claims (6)

  1. 　ワイヤ電極を用いて工作物を放電加工するワイヤ放電加工機において、
    　前記ワイヤ電極を中心として回転して放電加工に使用するワイヤ電極の表面を変更する回転機構を備えるワイヤ放電加工機。     In a wire electric discharge machine for electric discharge machining of a workpiece using a wire electrode,
    A wire electric discharge machine comprising a rotating mechanism that rotates around the wire electrode to change the surface of the wire electrode used for electric discharge machining.
  2. 　前記回転機構は、前記ワイヤ電極を搬送するためのローラを回転するローラ回転機構、及び／又は、前記工作物を回転する工作物回転機構を含む、請求項１記載のワイヤ放電加工機。 The wire electric discharge machine according to claim 1, wherein said rotating mechanism includes a roller rotating mechanism for rotating rollers for conveying said wire electrode and/or a workpiece rotating mechanism for rotating said workpiece.
  3. 　放電加工後の前記ワイヤ電極の搬送方向を変更する回転ローラと、
    　前記回転ローラにより搬送方向が変更された前記ワイヤ電極を巻き取る排出ローラを備え、
    　前記ローラ回転機構は前記排出ローラを回転する、請求項２記載のワイヤ放電加工機。     a rotating roller for changing the conveying direction of the wire electrode after electric discharge machining;
    a discharge roller for winding the wire electrode whose conveying direction has been changed by the rotating roller;
    3. The wire electric discharge machine according to claim 2, wherein said roller rotation mechanism rotates said discharge roller.
  4. 　ワイヤ電極を用いて工作物を放電加工するワイヤ放電加工機におけるワイヤ放電加工方法において、
    　前記ワイヤ放電加工機が備える回転機構が前記ワイヤ電極を中心に回転して放電加工に使用するワイヤ電極の表面を変更するステップを含むワイヤ放電加工方法。     In a wire electric discharge machining method in a wire electric discharge machine for electric discharge machining of a workpiece using a wire electrode,
    A wire electric discharge machining method, comprising the step of rotating a rotating mechanism provided in the wire electric discharge machine around the wire electrode to change the surface of the wire electrode used for electric discharge machining.
  5. 　前記回転機構が含む工作物回転機構は、前記ワイヤ電極を搬送するためのローラを回転するローラ回転機構、及び／又は、前記工作物を回転する、請求項４記載のワイヤ放電加工方法。 The wire electric discharge machining method according to claim 4, wherein the workpiece rotating mechanism included in the rotating mechanism rotates a roller for conveying the wire electrode and/or rotates the workpiece.
  6. 　前記ワイヤ放電加工機は、
    　　放電加工後の前記ワイヤ電極の搬送方向を変更する回転ローラと、
    　　前記回転ローラにより搬送方向が変更された前記ワイヤ電極を巻き取る排出ローラを備え、
    　前記ローラ回転機構は前記排出ローラを回転する、請求項５記載のワイヤ放電加工方法。     The wire electric discharge machine is
    a rotating roller for changing the conveying direction of the wire electrode after electric discharge machining;
    a discharge roller for winding the wire electrode whose conveying direction has been changed by the rotating roller;
    6. The wire electric discharge machining method according to claim 5, wherein said roller rotation mechanism rotates said discharge roller.
PCT/JP2021/045665 2021-02-08 2021-12-10 Wire electrical discharge machining apparatus and wire electrical discharge machining method WO2022168440A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62157726A (en) * 1985-12-28 1987-07-13 Ofic Co Wire-cut electric discharge machining method
JPH0246326B2 (en) * 1981-12-18 1990-10-15 Inoue Japax Res WAIYAKATSUTOHODENKAKOSOCHI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0246326B2 (en) * 1981-12-18 1990-10-15 Inoue Japax Res WAIYAKATSUTOHODENKAKOSOCHI
JPS62157726A (en) * 1985-12-28 1987-07-13 Ofic Co Wire-cut electric discharge machining method

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