JP7012882B2 - Spatter removal device and spatter removal method - Google Patents

Spatter removal device and spatter removal method Download PDF

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JP7012882B2
JP7012882B2 JP2020562328A JP2020562328A JP7012882B2 JP 7012882 B2 JP7012882 B2 JP 7012882B2 JP 2020562328 A JP2020562328 A JP 2020562328A JP 2020562328 A JP2020562328 A JP 2020562328A JP 7012882 B2 JP7012882 B2 JP 7012882B2
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nozzle
spatter
tip
tip portion
nozzle body
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JPWO2020136966A1 (en
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伸一 大中
義政 岩口
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Honda Motor Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/24—Features related to electrodes
    • B23K9/28—Supporting devices for electrodes
    • B23K9/29—Supporting devices adapted for making use of shielding means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories

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  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Description

本発明は、溶接装置のノズルに付着したスパッタを除去するスパッタ除去装置及びスパッタ除去方法に関する。 The present invention relates to a spatter removing device and a spatter removing method for removing spatter adhering to a nozzle of a welding device.

例えば、特許第３９４０３０２号公報には、溶接装置の溶接トーチの先端部に取り付けたノズルの内部に付着するスパッタを、カッタを用いて除去するスパッタ除去装置が開示されている。 For example, Japanese Patent No. 3940302 discloses a spatter removing device that uses a cutter to remove spatter adhering to the inside of a nozzle attached to the tip of a welding torch of a welding device.

しかしながら、特許第３９４０３０２号公報の技術では、溶接装置とは別途の駆動源を用いてノズルを移動させることで、スパッタを除去するノズルの部位を移動させる必要がある。この結果、装置の構成が複雑になると共に、駆動源の設置費用がかかるので、経済的ではない。 However, in the technique of Japanese Patent No. 3940302, it is necessary to move the portion of the nozzle for removing spatter by moving the nozzle using a drive source separate from the welding device. As a result, the configuration of the device becomes complicated and the installation cost of the drive source is high, which is not economical.

本発明は、このような課題を考慮してなされたものであり、複雑な構成にすることなく、経済的に、溶接装置のノズルに付着したスパッタを削ぎ落すことができるスパッタ除去装置及びスパッタ除去方法を提供することを目的とする。 The present invention has been made in consideration of such a problem, and is a spatter removing device and a spatter removing device capable of economically scraping off spatter adhering to a nozzle of a welding device without forming a complicated configuration. The purpose is to provide a method.

本発明の態様は、溶接装置のノズルに付着したスパッタを除去するスパッタ除去装置及びスパッタ除去方法に関する。 Aspects of the present invention relate to a spatter removing device and a spatter removing method for removing spatter adhering to a nozzle of a welding device.

前記スパッタ除去装置は、弾性変形可能な撓み部と、前記撓み部に支持され、前記ノズルの側壁に当接可能な先端部とを有する。この場合、前記溶接装置による前記ノズルの相対的な移動により、前記側壁が前記先端部に当接して、前記側壁から前記先端部への押圧力で前記撓み部が撓み、前記溶接装置による前記ノズルの該ノズルの基端側の方向への相対的な移動により、前記撓み部の撓みが戻る際に、前記ノズルの先端側に付着した前記スパッタを前記先端部で前記ノズルから削ぎ落す。 The spatter removing device has a flexible portion that can be elastically deformed, and a tip portion that is supported by the flexible portion and can come into contact with the side wall of the nozzle. In this case, due to the relative movement of the nozzle by the welding device, the side wall abuts on the tip portion, and the bending portion bends due to the pressing force from the side wall to the tip portion, and the nozzle by the welding device. When the bending of the bending portion returns due to the relative movement of the nozzle toward the base end side, the spatter adhering to the tip end side of the nozzle is scraped off from the nozzle by the tip portion.

前記スパッタ除去方法では、弾性変形可能な撓み部に支持される先端部が前記ノズルの側壁に当接可能であるスパッタ除去装置を用いて、前記溶接装置による前記ノズルの相対的な移動により、前記側壁を前記先端部に当接させ、前記側壁から前記先端部への押圧力で前記撓み部を撓ませる。次に、前記溶接装置による前記ノズルの該ノズルの基端側の方向への相対的な移動により、前記撓み部の撓みを戻した際に、前記ノズルの先端側に付着した前記スパッタを前記先端部で前記ノズルから削ぎ落す。 In the spatter removing method, the spatter removing device in which the tip portion supported by the elastically deformable flexible portion can abut on the side wall of the nozzle is used, and the relative movement of the nozzle by the welding device causes the nozzle to move. The side wall is brought into contact with the tip portion, and the flexible portion is flexed by the pressing force from the side wall to the tip portion. Next, when the bending of the bending portion is returned by the relative movement of the nozzle toward the base end side of the nozzle by the welding device, the spatter adhering to the tip side of the nozzle is applied to the tip. It is scraped off from the nozzle at the part.

本発明によれば、駆動源を別途設置することなく、撓み部の弾性変形の作用と、溶接装置によるノズルの移動作用とによって、ノズルの先端側に付着したスパッタをスパッタ除去装置の先端部で削ぎ落す。これにより、装置構成を複雑にすることなく、経済的且つ容易に、溶接装置のノズルに付着したスパッタを削ぎ落すことができる。 According to the present invention, the spatter adhering to the tip side of the nozzle is generated at the tip of the spatter removing device by the action of elastic deformation of the flexible portion and the action of moving the nozzle by the welding device without installing a separate drive source. Shave off. This makes it possible to economically and easily scrape off the spatter adhering to the nozzle of the welding device without complicating the device configuration.

本実施形態に係るスパッタ除去装置の斜視図である。It is a perspective view of the spatter removing apparatus which concerns on this embodiment. 図２Ａ及び図２Ｂは、図１のスパッタ除去装置の動作（スパッタ除去方法）を示す説明図である。2A and 2B are explanatory views showing the operation (spatter removing method) of the spatter removing device of FIG. 図３Ａ及び図３Ｂは、図１のスパッタ除去装置の動作を示す説明図である。3A and 3B are explanatory views showing the operation of the spatter removing device of FIG. 第１変形例の斜視図である。It is a perspective view of the 1st modification. 第２変形例の斜視図である。It is a perspective view of the 2nd modification. 第３変形例の斜視図である。It is a perspective view of the 3rd modification. 第４変形例の斜視図である。It is a perspective view of the 4th modification. 第５変形例の斜視図である。It is a perspective view of the 5th modification.

以下、本発明に係るスパッタ除去装置及びスパッタ除去方法について好適な実施形態を例示し、添付の図面を参照しながら説明する。 Hereinafter, a suitable embodiment of the spatter removing device and the spatter removing method according to the present invention will be illustrated and described with reference to the attached drawings.

［１．本実施形態の構成］
本実施形態に係るスパッタ除去装置１０は、図１に示すように、ノズル１２を用いた溶接装置１４において、被溶接物に対する溶接作業によって該ノズル１２に付着したスパッタ１６を除去するための装置である。ここでは、スパッタ除去装置１０の説明に先立ち、ノズル１２の構成について説明する。なお、スパッタ除去装置１０の対象となるノズル１２としては、例えば、ＭＡＧ（Ｍｅｔａｌ Ａｃｔｉｖｅ Ｇａｓ）溶接、ＭＩＧ（Ｍｅｔａｌ Ｉｎｅｒｔ Ｇａｓ）溶接等のアーク溶接装置のノズルや、レーザ溶接装置のノズルがある。[1. Configuration of this embodiment]
As shown in FIG. 1, the spatter removing device 10 according to the present embodiment is a device for removing spatter 16 adhering to the nozzle 12 by welding work on the object to be welded in the welding device 14 using the nozzle 12. be. Here, the configuration of the nozzle 12 will be described prior to the description of the spatter removing device 10. The nozzle 12 targeted by the spatter removing device 10 includes, for example, a nozzle of an arc welding device such as MAG (Metal Active Gas) welding and MIG (Metal Inert Gas) welding, and a nozzle of a laser welding device.

＜１．１ ノズル１２の構成＞
ノズル１２は、Ａ方向（図１では上下方向）に延び、Ａ１方向（図１では下方向）側の先端部１８ａが開口する筒状のノズル本体１８と、ノズル本体１８の内方でＡ方向に延びるコンタクトチップ２０とを備える。コンタクトチップ２０は、不図示のリールから引き出された溶接電極としてのワイヤ２２をＡ１方向に導く。なお、本実施形態では、図２Ａ～図３Ｂに示すように、一例として、コンタクトチップ２０のＡ１方向側の先端部がノズル本体１８の先端部１８ａからＡ１方向に突出している場合を図示している。本実施形態では、コンタクトチップ２０の先端部がノズル本体１８の先端部１８ａと略面一であったり、又は、コンタクトチップ２０の先端部がノズル本体１８の内方に引っ込んでいてもよい。<1.1 Configuration of nozzle 12>
The nozzle 12 extends in the A direction (vertical direction in FIG. 1), and has a tubular nozzle body 18 in which the tip portion 18a on the A1 direction (downward direction in FIG. 1) opens, and the nozzle body 18 in the A direction. It is provided with a contact tip 20 extending to. The contact tip 20 guides the wire 22 as a welding electrode drawn from a reel (not shown) in the A1 direction. In this embodiment, as shown in FIGS. 2A to 3B, as an example, a case where the tip portion of the contact tip 20 on the A1 direction side protrudes from the tip portion 18a of the nozzle body 18 in the A1 direction is illustrated. There is. In the present embodiment, the tip of the contact tip 20 may be substantially flush with the tip 18a of the nozzle body 18, or the tip of the contact tip 20 may be retracted inward of the nozzle body 18.

ここで、例えば、ＭＡＧ溶接、ＭＩＧ溶接等のアーク溶接作業では、被溶接物である不図示のワーク（例えば、車体のフレーム）とノズル本体１８の先端部１８ａとを向かい合わせ、ワークとワイヤ２２とを接触させた状態でワイヤ２２に通電する。次に、ワークとワイヤ２２とを引き離してアークを発生させ、アークの熱によってワークとワイヤ２２とを溶融させて接合する。その際、溶融金属（スパッタ１６）の一部が飛び散ってノズル本体１８の先端部１８ａに付着する場合がある。 Here, for example, in arc welding work such as MAG welding and MIG welding, a work (for example, a frame of a vehicle body) (not shown) which is an object to be welded and a tip portion 18a of a nozzle body 18 face each other, and the work and a wire 22 are opposed to each other. The wire 22 is energized in a state of being in contact with the wire 22. Next, the work and the wire 22 are separated to generate an arc, and the work and the wire 22 are melted and joined by the heat of the arc. At that time, a part of the molten metal (sputter 16) may be scattered and adhere to the tip portion 18a of the nozzle body 18.

特に、ワークの複数個所に対してアーク溶接を行った場合、スパッタ１６が円環状の付着物としてノズル本体１８の先端部１８ａに付着することがある。ノズル本体１８の先端部１８ａにスパッタ１６が堆積すると、該先端部１８ａからのシールドガスの噴射が困難となる。この結果、ワークに形成される溶接ビードにブローホールが発生する。また、シールドガスの流れが曲がり、アークが曲がることで、溶接ずれが発生する。 In particular, when arc welding is performed on a plurality of places on the work, the spatter 16 may adhere to the tip portion 18a of the nozzle body 18 as an annular deposit. When the spatter 16 is deposited on the tip portion 18a of the nozzle body 18, it becomes difficult to inject the shield gas from the tip portion 18a. As a result, blow holes are generated in the weld beads formed on the work. In addition, the flow of shield gas bends and the arc bends, causing welding misalignment.

＜１．２ スパッタ除去装置１０の構成＞
本実施形態に係るスパッタ除去装置１０は、ベースプレート２４と、ベースプレート２４に配置された金属製の複数の板ばね２６とを備える。図１では、一例として、Ｂ１方向（図１では後方向）側とＢ２方向（図１では前方向）側とにベースプレート２４がそれぞれ配置され、２つのベースプレート２４の各々には、２つの板ばね２６が配置されている場合を図示している。<1.2 Configuration of Spatter Removal Device 10>
The spatter removing device 10 according to the present embodiment includes a base plate 24 and a plurality of metal leaf springs 26 arranged on the base plate 24. In FIG. 1, as an example, base plates 24 are arranged on the B1 direction (rear direction in FIG. 1) and the B2 direction (front direction in FIG. 1), respectively, and two leaf springs are provided on each of the two base plates 24. The case where 26 is arranged is illustrated.

なお、本実施形態において、Ａ方向及びＢ方向は、互いに交差する方向であればよい。後述するように、ロボットのアーム等の不図示の移動手段を用いて、溶接装置１４がノズル１２を移動させる場合、スパッタ除去装置１０は、ノズル１２が移動可能な空きスペースに設置される。この場合、２つのベースプレート２４は、スパッタ１６を除去する際、ノズル本体１８の先端部１８ａに板ばね２６が当接可能であれば、どのような配置関係（例えば、斜め配置）でも設置可能である。以下の説明では、図１の図示内容に従って、Ａ方向が上下方向、Ｂ方向が前後方向である場合について説明する。 In this embodiment, the A direction and the B direction may be directions that intersect each other. As will be described later, when the welding device 14 moves the nozzle 12 by using a moving means (not shown) such as a robot arm, the spatter removing device 10 is installed in an empty space where the nozzle 12 can move. In this case, the two base plates 24 can be installed in any arrangement relationship (for example, diagonal arrangement) as long as the leaf spring 26 can come into contact with the tip portion 18a of the nozzle body 18 when removing the spatter 16. be. In the following description, a case where the A direction is the vertical direction and the B direction is the front-rear direction will be described according to the contents shown in FIG.

板ばね２６は、ボルト２８によってベースプレート２４に固定された基端部３０と、基端部３０から斜め上方に延び、弾性変形可能な撓み部３２と、撓み部３２の先端から斜め下方に傾斜して延びる先端部３４とを有する。図２Ａに示すように、基端部３０と撓み部３２との成す角度θ１は直角又は鈍角であり、撓み部３２と先端部３４との成す角度θ２は略直角であることが望ましい。また、図１に示すように、Ｂ１方向側に配置されたベースプレート２４には、２つの板ばね２６の先端部３４がＢ２方向に向かって互いに近接するように２つの板ばね２６が配置されている。また、Ｂ２方向側に配置されたベースプレート２４には、２つの板ばね２６の先端部３４がＢ１方向に向かって互いに近接するように２つの板ばね２６が配置されている。 The leaf spring 26 extends diagonally upward from the base end portion 30 fixed to the base plate 24 by bolts 28, and is elastically deformable and tilts diagonally downward from the tip of the flexible portion 32. Has a tip portion 34 extending from the surface. As shown in FIG. 2A, it is desirable that the angle θ1 formed by the base end portion 30 and the bending portion 32 is a right angle or an obtuse angle, and the angle θ2 formed by the bending portion 32 and the tip portion 34 is a substantially right angle. Further, as shown in FIG. 1, two leaf springs 26 are arranged on the base plate 24 arranged on the B1 direction side so that the tip portions 34 of the two leaf springs 26 are close to each other in the B2 direction. There is. Further, on the base plate 24 arranged on the B2 direction side, the two leaf springs 26 are arranged so that the tip portions 34 of the two leaf springs 26 are close to each other in the B1 direction.

なお、図１において、Ｂ１方向側のベースプレート２４の２つの板ばね２６と、Ｂ２方向側のベースプレート２４の２つの板ばね２６とは、先端部３４が互いに向かい合うように配置されている。本実施形態では、一方のベースプレート２４の２つの板ばね２６の先端部３４と、他方のベースプレート２４の２つの板ばね２６の先端部３４とが、互いに異なる方向を向くように、各板ばね２６が配置されていればよい。従って、本実施形態では、図１のような向い合わせの配置構成に限らず、例えば、２つのベースプレート２４を並べて配置し、各ベースプレート２４の２つの板ばね２６の先端部３４が互いに逆方向に向くように各板ばね２６を配置することも可能である。 In FIG. 1, the two leaf springs 26 of the base plate 24 on the B1 direction side and the two leaf springs 26 of the base plate 24 on the B2 direction side are arranged so that the tip portions 34 face each other. In the present embodiment, each leaf spring 26 is oriented so that the tip 34 of the two leaf springs 26 of one base plate 24 and the tip 34 of the two leaf springs 26 of the other base plate 24 face different directions from each other. Should be placed. Therefore, in the present embodiment, the arrangement is not limited to the facing arrangement as shown in FIG. 1, for example, two base plates 24 are arranged side by side, and the tip portions 34 of the two leaf springs 26 of each base plate 24 are oriented in opposite directions. It is also possible to arrange each leaf spring 26 so as to face it.

２つのベースプレート２４の各々に配置された２つの板ばね２６の先端部３４は、ノズル１２が接近し、ノズル１２の側壁（ノズル本体１８の外周面１８ｂ）が当接する際に、ノズル本体１８の先端部１８ａに指向するように、撓み部３２の先端から延在している。また、２つの板ばね２６の先端部３４は、ノズル１２の側壁に当接した際に、該先端部３４を支持する撓み部３２が撓むように、該撓み部３２から延在している。さらに、２つの板ばね２６の基端部３０は、複数のピン部材３６によってベースプレート２４の上面の所定位置に位置決めされている。 The tips 34 of the two leaf springs 26 arranged on each of the two base plates 24 of the nozzle body 18 come into contact with the side wall of the nozzle 12 (the outer peripheral surface 18b of the nozzle body 18) when the nozzle 12 approaches. It extends from the tip of the flexible portion 32 so as to be directed toward the tip portion 18a. Further, the tip portions 34 of the two leaf springs 26 extend from the bending portion 32 so that the bending portion 32 supporting the tip portion 34 bends when it comes into contact with the side wall of the nozzle 12. Further, the base end portions 30 of the two leaf springs 26 are positioned at predetermined positions on the upper surface of the base plate 24 by the plurality of pin members 36.

［２．本実施形態の動作］
次に、本実施形態に係るスパッタ除去装置１０の動作（スパッタ除去方法）について、図２Ａ～図３Ｂを参照しながら説明する。なお、この動作説明では、必要に応じて、図１を参照しながら説明する。ここでは、代表的に、図１のＢ１方向側のベースプレート２４に配置された２つの板ばね２６のうち、一方の板ばね２６によるスパッタ１６の除去作業について説明する。[2. Operation of this embodiment]
Next, the operation (spatter removing method) of the spatter removing device 10 according to the present embodiment will be described with reference to FIGS. 2A to 3B. In this operation description, if necessary, it will be described with reference to FIG. Here, typically, the work of removing the spatter 16 by one of the two leaf springs 26 arranged on the base plate 24 on the B1 direction side of FIG. 1 will be described.

車体のフレーム等のワークの複数個所に対してアーク溶接を行うことで、ノズル本体１８の先端部１８ａにスパッタ１６が円環状に付着する。そこで、溶接装置１４は、ロボットのアーム等の不図示の移動手段を用いて、図２Ａに示すように、ノズル１２を板ばね２６の先端部３４に接近させる。具体的に、ノズル本体１８の軸方向がＡ方向で、ノズル本体１８の先端位置、より詳しくは、ノズル本体１８の先端部１８ａに付着したスパッタ１６の位置が、板ばね２６の先端部３４の先端位置よりも僅かにＡ１方向側（下方）となるように、ノズル１２を板ばね２６の先端部３４に接近させる。 By performing arc welding on a plurality of parts of the work such as the frame of the vehicle body, the spatter 16 adheres to the tip portion 18a of the nozzle body 18 in an annular shape. Therefore, the welding device 14 brings the nozzle 12 closer to the tip portion 34 of the leaf spring 26, as shown in FIG. 2A, by using a moving means (not shown) such as a robot arm. Specifically, the axial direction of the nozzle body 18 is the A direction, and the position of the tip of the nozzle body 18, more specifically, the position of the spatter 16 attached to the tip 18a of the nozzle body 18 is the position of the tip 34 of the leaf spring 26. The nozzle 12 is brought closer to the tip portion 34 of the leaf spring 26 so as to be slightly on the A1 direction side (downward) from the tip position.

次に、図２Ｂに示すように、移動手段は、ノズル１２をＢ１方向に移動させ、ノズル本体１８の外周面１８ｂ（ノズル１２の側壁）の先端部１８ａ側を板ばね２６の先端部３４に当接させる。そして、ノズル１２をＢ１方向にさらに移動させると、ノズル本体１８の外周面１８ｂの先端部１８ａ側から板ばね２６の先端部３４への押圧力によって、板ばね２６の先端部３４が押し込まれ、撓み部３２は、基端部３０と撓み部３２との接続箇所を支点としてＢ１方向に撓む。この結果、板ばね２６の先端部３４は、Ｂ１方向に向かって、後方斜め上方に変位（後退）する。 Next, as shown in FIG. 2B, the moving means moves the nozzle 12 in the B1 direction, and the tip portion 18a side of the outer peripheral surface 18b (side wall of the nozzle 12) of the nozzle body 18 becomes the tip portion 34 of the leaf spring 26. Make a contact. Then, when the nozzle 12 is further moved in the B1 direction, the tip portion 34 of the leaf spring 26 is pushed by the pressing force from the tip portion 18a side of the outer peripheral surface 18b of the nozzle body 18 to the tip portion 34 of the leaf spring 26. The bending portion 32 bends in the B1 direction with the connection point between the base end portion 30 and the bending portion 32 as a fulcrum. As a result, the tip portion 34 of the leaf spring 26 is displaced (backward) diagonally upward and backward toward the B1 direction.

次に、図３Ａに示すように、移動手段は、ノズル１２をＡ２方向（ノズル１２の基端側の方向である上方）に移動させる。ノズル本体１８の先端部１８ａは、Ａ１方向に向かって徐々に先細りする形状である。そのため、ノズル１２のＡ２方向への移動に伴って、板ばね２６の撓み部３２は、基端部３０と撓み部３２との接続箇所を支点としてＢ２方向に徐々に戻る。これにより、板ばね２６の先端部３４は、Ｂ２方向に向かって前方斜め下方に徐々に変位する。その後、板ばね２６の先端部３４がノズル本体１８の先端位置に到達すると、板ばね２６の先端部３４がノズル本体１８の先端位置とスパッタ１６との間に喰い込む。 Next, as shown in FIG. 3A, the moving means moves the nozzle 12 in the A2 direction (upward, which is the direction toward the proximal end side of the nozzle 12). The tip portion 18a of the nozzle body 18 has a shape that gradually tapers toward the A1 direction. Therefore, as the nozzle 12 moves in the A2 direction, the flexible portion 32 of the leaf spring 26 gradually returns in the B2 direction with the connection point between the base end portion 30 and the flexible portion 32 as a fulcrum. As a result, the tip portion 34 of the leaf spring 26 is gradually displaced forward and diagonally downward toward the B2 direction. After that, when the tip portion 34 of the leaf spring 26 reaches the tip position of the nozzle body 18, the tip portion 34 of the leaf spring 26 bites between the tip position of the nozzle body 18 and the spatter 16.

次に、図３Ｂに示すように、移動手段がノズル１２をＡ２方向にさらに移動させると、板ばね２６の先端部３４は、ノズル本体１８からの押圧状態から解放される。これにより、板ばね２６の撓み部３２は、基端部３０と撓み部３２との接続箇所を支点として、ばね反力により、Ｂ２方向に一気に戻る。この結果、板ばね２６の先端部３４からスパッタ１６に前方斜め下方に向かう力が付与され、スパッタ１６は、板ばね２６の先端部３４からの力と、ノズル１２のＡ２方向への移動とによって、ノズル本体１８の先端位置のＢ２方向側を支点として、ノズル本体１８の先端部１８ａから削ぎ落される。 Next, as shown in FIG. 3B, when the moving means further moves the nozzle 12 in the A2 direction, the tip portion 34 of the leaf spring 26 is released from the pressed state from the nozzle body 18. As a result, the flexible portion 32 of the leaf spring 26 returns at once in the B2 direction by the spring reaction force with the connection point between the base end portion 30 and the flexible portion 32 as a fulcrum. As a result, a force is applied to the spatter 16 diagonally forward and downward from the tip 34 of the leaf spring 26, and the spatter 16 is generated by the force from the tip 34 of the leaf spring 26 and the movement of the nozzle 12 in the A2 direction. , With the B2 direction side of the tip position of the nozzle body 18 as a fulcrum, it is scraped off from the tip 18a of the nozzle body 18.

なお、上記の動作説明では、図１のＢ１方向側のベースプレート２４に配置された１つの板ばね２６を用いて、該板ばね２６の先端部３４からスパッタ１６のＢ１方向側の部分に作用する力で、ノズル本体１８の先端部１８ａからスパッタ１６を削ぎ落す場合について説明した。Ｂ１方向側のベースプレート２４には、２つの板ばね２６が配置されているので、１回のスパッタ１６の除去作業で、ノズル本体１８の先端部１８ａからスパッタ１６を効率よく削ぎ落すことができる。 In the above description of the operation, one leaf spring 26 arranged on the base plate 24 on the B1 direction side of FIG. 1 is used to act on the portion of the spatter 16 on the B1 direction side from the tip portion 34 of the leaf spring 26. A case where the spatter 16 is scraped off from the tip portion 18a of the nozzle body 18 by force has been described. Since the two leaf springs 26 are arranged on the base plate 24 on the B1 direction side, the spatter 16 can be efficiently scraped off from the tip portion 18a of the nozzle body 18 by one spatter 16 removal operation.

また、上記の説明では、図１のＢ１方向側のベースプレート２４に配置された板ばね２６の先端部３４からスパッタ１６のＢ１方向側の部分に作用する力で、ノズル本体１８の先端部１８ａからスパッタ１６を削ぎ落す。そのため、スパッタ１６のＢ２方向側の部分がノズル本体１８の先端部１８ａに残存する可能性がある。 Further, in the above description, the force acting from the tip portion 34 of the leaf spring 26 arranged on the base plate 24 on the B1 direction side of FIG. 1 to the portion of the spatter 16 on the B1 direction side is applied from the tip portion 18a of the nozzle body 18. Scrape off the spatter 16. Therefore, the portion of the spatter 16 on the B2 direction side may remain on the tip portion 18a of the nozzle body 18.

この場合、図１に示すＢ２方向側のベースプレート２４に配置された２つの板ばね２６を用いて、スパッタ１６のＢ２方向側の部分を削ぎ落せばよい。この場合、前述した動作説明において、「Ｂ１方向」を「Ｂ２方向」に置換し、「Ｂ２方向」を「Ｂ１方向」に置換し、「前方」を「後方」に置換し、「後方」を「前方」に置換すれば、Ｂ２方向側のベースプレート２４に配置された２つの板ばね２６によるスパッタ１６の除去作業の動作説明となる。 In this case, two leaf springs 26 arranged on the base plate 24 on the B2 direction side shown in FIG. 1 may be used to scrape off the portion of the spatter 16 on the B2 direction side. In this case, in the above-mentioned operation description, "B1 direction" is replaced with "B2 direction", "B2 direction" is replaced with "B1 direction", "front" is replaced with "rear", and "rear" is replaced with "rear". If it is replaced with "forward", it will explain the operation of the work of removing the spatter 16 by the two leaf springs 26 arranged on the base plate 24 on the B2 direction side.

従って、図１において、Ｂ２方向側のベースプレート２４に配置された２つの板ばね２６を用いたスパッタ１６の削ぎ落しと、Ｂ１方向側のベースプレート２４に配置された２つの板ばね２６を用いたスパッタ１６の削ぎ落しとを交互に行えば、ノズル本体１８の先端部１８ａに付着したスパッタ１６を、偏りなく且つ短時間で除去することができる。例えば、ワークの複数個所に対してアーク溶接を行う場合、アーク溶接を所定回数実行する毎に、Ｂ２方向側の２つの板ばね２６と、Ｂ１方向側の２つの板ばね２６とで交互にスパッタ１６の除去作業を行えば、ノズル１２を含めた溶接装置１４のメンテナンス性が向上する。 Therefore, in FIG. 1, the spatter 16 is scraped off using the two leaf springs 26 arranged on the base plate 24 on the B2 direction side, and the spatter 16 is spattered using the two leaf springs 26 arranged on the base plate 24 on the B1 direction side. If the scraping of 16 is performed alternately, the spatter 16 adhering to the tip portion 18a of the nozzle body 18 can be removed without bias and in a short time. For example, when arc welding is performed on a plurality of workpieces, the two leaf springs 26 on the B2 direction side and the two leaf springs 26 on the B1 direction side alternately spatter each time the arc welding is executed a predetermined number of times. If the removal work of 16 is performed, the maintainability of the welding device 14 including the nozzle 12 is improved.

さらに、上記の説明は、ノズル１２の軸回りのうち、ノズル本体１８の外周面１８ｂの先端部１８ａ側と板ばね２６とが向かい合う角度でのスパッタ１６の除去作業である。従って、他の角度でスパッタ１６が残存する場合、移動手段は、ノズル１２を軸回りに回転させることで、残存するスパッタ１６と板ばね２６とを向かい合わせればよい。これにより、残存するスパッタ１６に対する除去作業を効率よく行うことができる。 Further, the above description is the work of removing the spatter 16 at an angle in which the tip portion 18a side of the outer peripheral surface 18b of the nozzle body 18 and the leaf spring 26 face each other in the axial rotation of the nozzle 12. Therefore, when the spatter 16 remains at another angle, the moving means may rotate the nozzle 12 around the axis so that the remaining spatter 16 and the leaf spring 26 face each other. As a result, the work of removing the remaining spatter 16 can be efficiently performed.

［３．変形例］
次に、本実施形態に係るスパッタ除去装置１０の変形例（第１～第５変形例）について、図４～図８を参照しながら説明する。[3. Modification example]
Next, a modification (first to fifth modification) of the spatter removing device 10 according to the present embodiment will be described with reference to FIGS. 4 to 8.

＜３．１ 第１変形例＞
図４に示す第１変形例は、１回のスパッタ１６の除去作業において、該スパッタ１６を削ぎ落す板ばね２６の数を増やした点で、図１～図３Ｂの実施形態とは異なる。この場合、各板ばね２６の先端部３４がノズル本体１８の外周面１８ｂの先端部１８ａ側に当接するように、各板ばね２６の先端部３４が近接配置されている。これにより、第１変形例では、スパッタ１６の除去作業の際、ノズル本体１８の先端位置とスパッタ１６との間に、各板ばね２６の先端部３４を引っ掛けて喰い込ませることができる。この結果、スパッタ１６の除去効率がさらに向上する。<3.1 First modification example>
The first modification shown in FIG. 4 is different from the embodiment of FIGS. 1 to 3B in that the number of leaf springs 26 for scraping off the spatter 16 is increased in one removal operation of the spatter 16. In this case, the tip 34 of each leaf spring 26 is arranged close to each other so that the tip 34 of each leaf spring 26 comes into contact with the tip 18a side of the outer peripheral surface 18b of the nozzle body 18. Thereby, in the first modification, when the spatter 16 is removed, the tip portion 34 of each leaf spring 26 can be hooked and bitten between the tip position of the nozzle body 18 and the spatter 16. As a result, the removal efficiency of the spatter 16 is further improved.

＜３．２ 第２変形例＞
図５に示す第２変形例では、ベースプレート２４に複数のブロック状の基端部３０が配置され、複数の板ばね２６の各々が基端部３０に固定されている点で、図１～図４の場合とは異なる。従って、複数の板ばね２６は、撓み部３２及び先端部３４によって構成される。第２変形例では、板ばね２６の屈曲箇所が１箇所であるため、板ばね２６のコストを削減することができる。<3.2 Second modification>
In the second modification shown in FIG. 5, a plurality of block-shaped base end portions 30 are arranged on the base plate 24, and each of the plurality of leaf springs 26 is fixed to the base end portion 30. It is different from the case of 4. Therefore, the plurality of leaf springs 26 are composed of the bending portion 32 and the tip portion 34. In the second modification, since the leaf spring 26 has only one bent portion, the cost of the leaf spring 26 can be reduced.

＜３．３ 第３変形例＞
図６に示す第３変形例では、ベースプレート２４に配置された連結機構３８を介して、板ばね２６である撓み部３２と、先端部３４を有する爪部材４０とが連結されている。この場合、撓み部３２は、一端がベースプレート２４の上面に接触し、他端側が連結機構３８によって上方に湾曲する板ばね２６である。爪部材４０は、連結機構３８から斜め上方に延びる連結部４２と、連結部４２から斜め下方に延びる爪状の先端部３４とを有する。連結部４２は、連結機構３８によって撓み部３２の他端に支持されている。<3.3 Third variant>
In the third modification shown in FIG. 6, the flexible portion 32, which is a leaf spring 26, and the claw member 40 having the tip portion 34 are connected via the connecting mechanism 38 arranged on the base plate 24. In this case, the flexible portion 32 is a leaf spring 26 having one end in contact with the upper surface of the base plate 24 and the other end being curved upward by the connecting mechanism 38. The claw member 40 has a connecting portion 42 extending diagonally upward from the connecting mechanism 38, and a claw-shaped tip portion 34 extending diagonally downward from the connecting portion 42. The connecting portion 42 is supported by the connecting mechanism 38 at the other end of the flexible portion 32.

スパッタ１６の除去作業の際、爪部材４０の先端部３４がノズル本体１８の外周面１８ｂの先端部１８ａ側に当接すると、ノズル本体１８から爪部材４０への押圧力が撓み部３２に伝わり、撓み部３２の他端側がさらに湾曲する。その後、ノズル１２のＡ２方向への移動によって、爪部材４０の先端部３４がノズル本体１８の先端位置とスパッタ１６との間に喰い込む。そして、ノズル１２がＡ２方向にさらに移動して、爪部材４０の先端部３４がノズル本体１８からの押圧力から解放されると、撓み部３２のばね反力によって、爪部材４０は、撓み部３２と連結部４２との連結箇所を支点として、斜め下方に変位する。これにより、ノズル本体１８の先端部１８ａからスパッタ１６を削ぎ落すことができる。 When the tip portion 34 of the claw member 40 comes into contact with the tip portion 18a side of the outer peripheral surface 18b of the nozzle body 18 during the removal work of the spatter 16, the pressing force from the nozzle body 18 to the claw member 40 is transmitted to the bending portion 32. , The other end side of the flexible portion 32 is further curved. After that, by moving the nozzle 12 in the A2 direction, the tip portion 34 of the claw member 40 bites between the tip position of the nozzle body 18 and the spatter 16. Then, when the nozzle 12 further moves in the A2 direction and the tip portion 34 of the claw member 40 is released from the pressing force from the nozzle body 18, the claw member 40 is displaced by the spring reaction force of the bending portion 32. Displace diagonally downward with the connection point between the 32 and the connecting portion 42 as a fulcrum. As a result, the spatter 16 can be scraped off from the tip portion 18a of the nozzle body 18.

第３変形例では、撓み部３２と爪部材４０とが別部材である。これにより、爪部材４０を硬度の高い材質とし、撓み部３２をばね反力の大きな材質とすることができる。これにより、スパッタ１６を確実に且つ効率よく除去することが可能となる。また、摩耗等の消耗に応じて、撓み部３２又は爪部材４０を適宜交換することが可能である。 In the third modification, the flexible portion 32 and the claw member 40 are separate members. As a result, the claw member 40 can be made of a material having a high hardness, and the flexible portion 32 can be made of a material having a large spring reaction force. This makes it possible to remove the spatter 16 reliably and efficiently. Further, the flexible portion 32 or the claw member 40 can be appropriately replaced according to wear such as wear.

＜３．４ 第４変形例＞
図７に示す第４変形例では、板ばね２６が基端部３０及び撓み部３２で構成され、撓み部３２の先端に爪部材である先端部３４が装着されている点で、図１～図６の場合とは異なる。すなわち、第４変形例では、板ばね２６と先端部３４とが別部材である。この場合、例えば、板ばね２６をばね反力の大きな材質とし、先端部３４を硬度の高い材質とする。これにより、スパッタ１６を確実に除去することが可能になると共に、先端部３４のみを交換することが可能となる。<3.4 Fourth variant>
In the fourth modification shown in FIG. 7, the leaf spring 26 is composed of the base end portion 30 and the bending portion 32, and the tip portion 34, which is a claw member, is attached to the tip of the bending portion 32. This is different from the case of FIG. That is, in the fourth modification, the leaf spring 26 and the tip portion 34 are separate members. In this case, for example, the leaf spring 26 is made of a material having a large spring reaction force, and the tip portion 34 is made of a material having a high hardness. As a result, the spatter 16 can be reliably removed, and only the tip portion 34 can be replaced.

＜３．５ 第５変形例＞
図８に示す第５変形例では、Ａ方向に延びる複数の板ばね２６の先端部３４をノズル本体１８の内方に挿入し、ノズル１２をＡ２方向に移動させた際、各板ばね２６の先端部３４によってノズル本体１８の先端部１８ａに付着した円環状のスパッタ１６を、ノズル本体１８の内方から削ぎ落す点で、図１～図７の場合とは異なる。<3.5 Fifth variant>
In the fifth modification shown in FIG. 8, when the tip portions 34 of the plurality of leaf springs 26 extending in the A direction are inserted inward of the nozzle body 18 and the nozzle 12 is moved in the A2 direction, the leaf springs 26 are It is different from the case of FIGS. 1 to 7 in that the annular spatter 16 adhering to the tip portion 18a of the nozzle body 18 is scraped off from the inside of the nozzle body 18 by the tip portion 34.

第５変形例において、複数の板ばね２６は、Ａ方向に延びる撓み部３２と、撓み部３２から上方に延びる爪状の先端部３４とを有する。具体的に、複数の板ばね２６は、ノズル本体１８の内方に挿入した際、爪状の各先端部３４がノズル本体１８の内周面１８ｃ（ノズル１２の側壁）の先端部１８ａ側と向かい合うように、ノズル本体１８の軸回りに所定角度間隔（図８では、略９０°間隔）で配置されている。また、複数の板ばね２６の先端部３４は、ノズル１２から見たときに、爪部分がノズル本体１８の先端位置よりも僅かに外方（ノズル本体１８の径方向外側）に突出している。 In the fifth modification, the plurality of leaf springs 26 have a bending portion 32 extending in the A direction and a claw-shaped tip portion 34 extending upward from the bending portion 32. Specifically, when the plurality of leaf springs 26 are inserted into the nozzle body 18, each claw-shaped tip 34 is on the tip 18a side of the inner peripheral surface 18c (side wall of the nozzle 12) of the nozzle body 18. They are arranged around the axis of the nozzle body 18 at predetermined angular intervals (approximately 90 ° intervals in FIG. 8) so as to face each other. Further, when viewed from the nozzle 12, the tip portions 34 of the plurality of leaf springs 26 have their claws slightly protruding outward from the tip positions of the nozzle body 18 (radial outside of the nozzle body 18).

この場合、移動手段によって、ノズル１２をＡ１方向に移動させた際、複数の板ばね２６の先端部３４は、ノズル本体１８の先端位置に当接する。ノズル１２をＡ１方向にさらに移動させると、ノズル本体１８から複数の板ばね２６の先端部３４への押圧力は、該先端部３４の爪部分の傾斜面に沿った方向の力と、該先端部３４の爪部分の傾斜面に直交する方向の力（ノズル本体１８の径方向内側に向かう力）とに分解される。この径方向内側に向かう力によって、板ばね２６の先端部３４及び撓み部３２は、該径方向内側に撓む。このように、複数の板ばね２６の先端部３４及び撓み部３２がノズル本体１８の径方向内側に撓んだ状態で、複数の板ばね２６の先端部３４は、ノズル本体１８の内方に挿入される。 In this case, when the nozzle 12 is moved in the A1 direction by the moving means, the tip portions 34 of the plurality of leaf springs 26 come into contact with the tip positions of the nozzle body 18. When the nozzle 12 is further moved in the A1 direction, the pressing force from the nozzle body 18 to the tip portions 34 of the leaf springs 26 is the force in the direction along the inclined surface of the claw portion of the tip portion 34 and the tip end. It is decomposed into a force in a direction orthogonal to the inclined surface of the claw portion of the portion 34 (a force toward the inside in the radial direction of the nozzle body 18). Due to this radial inward force, the tip portion 34 and the bending portion 32 of the leaf spring 26 bend inward in the radial direction. In this way, with the tip portions 34 and the bending portions 32 of the plurality of leaf springs 26 bent inward in the radial direction of the nozzle body 18, the tip portions 34 of the plurality of leaf springs 26 are moved inward of the nozzle body 18. Will be inserted.

この状態で、ノズル１２をＡ２方向に移動させると、ノズル本体１８の先端位置において、複数の板ばね２６の先端部３４がノズル本体１８の先端位置とスパッタ１６との間に喰い込む。その後、ノズル１２がＡ２方向にさらに移動して、複数の板ばね２６がノズル本体１８の押圧力から解放されると、各板ばね２６の先端部３４は、ノズル本体１８の径方向外側に向かう撓み部３２のばね反力によって、スパッタ１６をノズル本体１８の先端部１８ａから削ぎ落す。 When the nozzle 12 is moved in the A2 direction in this state, the tip portions 34 of the plurality of leaf springs 26 bite between the tip positions of the nozzle body 18 and the spatter 16 at the tip positions of the nozzle body 18. After that, when the nozzle 12 further moves in the A2 direction and the plurality of leaf springs 26 are released from the pressing force of the nozzle body 18, the tip portion 34 of each leaf spring 26 tends outward in the radial direction of the nozzle body 18. The spatter 16 is scraped off from the tip portion 18a of the nozzle body 18 by the spring reaction force of the bending portion 32.

第５変形例の場合でも、ノズル本体１８の先端部１８ａに付着したスパッタ１６を除去することが可能である。 Even in the case of the fifth modification, it is possible to remove the spatter 16 adhering to the tip portion 18a of the nozzle body 18.

＜３．６ その他の変形例＞
上記の説明では、スパッタ除去装置１０に対してノズル１２を移動させる場合について説明した。本実施形態では、ノズル１２に対してスパッタ除去装置１０を移動させてもよい。すなわち、スパッタ除去装置１０では、先端部３４に対してノズル１２を相対的に移動させることにより、ノズル本体１８の先端部１８ａに付着したスパッタ１６を削ぎ落すことが可能である。<3.6 Other variants>
In the above description, the case where the nozzle 12 is moved with respect to the spatter removing device 10 has been described. In the present embodiment, the spatter removing device 10 may be moved with respect to the nozzle 12. That is, in the spatter removing device 10, by moving the nozzle 12 relative to the tip portion 34, it is possible to scrape off the spatter 16 adhering to the tip portion 18a of the nozzle body 18.

また、上記の説明では、ノズル本体１８の先端部１８ａ側がＡ１方向に向かって徐々に先細りする形状である場合について説明した。本実施形態では、ノズル本体１８の先端部１８ａ側がストレートな形状であっても、ノズル本体１８の先端部１８ａに付着したスパッタ１６を削ぎ落すことが可能である。 Further, in the above description, the case where the tip portion 18a side of the nozzle body 18 has a shape gradually tapering toward the A1 direction has been described. In the present embodiment, even if the tip portion 18a side of the nozzle body 18 has a straight shape, it is possible to scrape off the spatter 16 adhering to the tip portion 18a of the nozzle body 18.

さらに、上記の説明では、主として、板ばね２６の作用によって、ノズル本体１８の先端位置とスパッタ１６との間に先端部３４を喰い込ませる場合について説明した。本実施形態では、板ばね２６以外の他のばね、例えば、トーションばねを用いて先端部３４をノズル本体１８の先端位置とスパッタ１６との間に喰い込ませることも可能である。 Further, in the above description, a case where the tip portion 34 is bitten between the tip position of the nozzle body 18 and the spatter 16 is mainly described by the action of the leaf spring 26. In the present embodiment, it is also possible to use a spring other than the leaf spring 26, for example, a torsion spring, to bite the tip portion 34 between the tip position of the nozzle body 18 and the spatter 16.

［４．本実施形態の効果］
以上説明したように、本実施形態に係るスパッタ除去装置１０は、弾性変形可能な撓み部３２と、撓み部３２に支持され、ノズル１２を構成するノズル本体１８の外周面１８ｂ又は内周面１８ｃ（ノズル１２の側壁）の先端部１８ａ側に当接可能な先端部３４とを有する。この場合、溶接装置１４によるノズル１２の相対的な移動により、ノズル本体１８の外周面１８ｂ又は内周面１８ｃの先端部１８ａ側がスパッタ除去装置１０の先端部３４に当接し、外周面１８ｂ又は内周面１８ｃから先端部３４への押圧力で撓み部３２が撓み、溶接装置１４によるノズル１２のＡ２方向（ノズル１２の基端側の方向）への相対的な移動により、撓み部３２の撓みが戻る際に、ノズル本体１８の先端部１８ａに付着したスパッタ１６をスパッタ除去装置１０の先端部３４でノズル１２から削ぎ落す。[4. Effect of this embodiment]
As described above, the spatter removing device 10 according to the present embodiment has an elastically deformable flexible portion 32 and an outer peripheral surface 18b or an inner peripheral surface 18c of the nozzle body 18 supported by the flexible portion 32 and constituting the nozzle 12. It has a tip portion 34 that can come into contact with the tip portion 18a side of (the side wall of the nozzle 12). In this case, due to the relative movement of the nozzle 12 by the welding device 14, the tip portion 18a side of the outer peripheral surface 18b or the inner peripheral surface 18c of the nozzle body 18 comes into contact with the tip portion 34 of the spatter removing device 10, and the outer peripheral surface 18b or the inner surface 18b or the inner surface 18c. The bending portion 32 bends due to the pressing force from the peripheral surface 18c to the tip portion 34, and the bending portion 32 bends due to the relative movement of the nozzle 12 in the A2 direction (direction toward the base end side of the nozzle 12) by the welding device 14. Is returned, the spatter 16 adhering to the tip portion 18a of the nozzle body 18 is scraped off from the nozzle 12 by the tip portion 34 of the spatter removal device 10.

また、本実施形態に係るスパッタ除去方法では、弾性変形可能な撓み部３２に支持される先端部３４がノズル本体１８の外周面１８ｂ又は内周面１８ｃの先端部１８ａ側に当接可能であるスパッタ除去装置１０を用いて、溶接装置１４によるノズル１２の相対的な移動により、外周面１８ｂ又は内周面１８ｃをスパッタ除去装置１０の先端部３４に当接させ、外周面１８ｂ又は内周面１８ｃからスパッタ除去装置１０の先端部３４への押圧力で撓み部３２を撓ませる。次に、溶接装置１４によるノズル１２のＡ２方向への相対的な移動により、撓み部３２の撓みを戻した際に、ノズル本体１８の先端部１８ａに付着したスパッタ１６をスパッタ除去装置１０の先端部３４でノズル１２から削ぎ落す。 Further, in the spatter removing method according to the present embodiment, the tip portion 34 supported by the elastically deformable flexible portion 32 can come into contact with the tip portion 18a side of the outer peripheral surface 18b or the inner peripheral surface 18c of the nozzle body 18. Using the spatter removing device 10, the outer peripheral surface 18b or the inner peripheral surface 18c is brought into contact with the tip portion 34 of the spatter removing device 10 by the relative movement of the nozzle 12 by the welding device 14, and the outer peripheral surface 18b or the inner peripheral surface is brought into contact with the tip portion 34. The bending portion 32 is bent by the pressing force from 18c to the tip portion 34 of the spatter removing device 10. Next, when the bending of the bending portion 32 is returned by the relative movement of the nozzle 12 in the A2 direction by the welding device 14, the spatter 16 adhering to the tip portion 18a of the nozzle body 18 is removed from the tip of the spatter removing device 10. It is scraped off from the nozzle 12 by the portion 34.

これにより、駆動源を別途設置することなく、撓み部３２の弾性変形の作用と、溶接装置１４によるノズル１２の移動作用とによって、ノズル本体１８の先端部１８ａに付着したスパッタ１６をスパッタ除去装置１０の先端部３４で削ぎ落す。これにより、装置構成を複雑にすることなく、経済的且つ容易に、溶接装置１４のノズル１２に付着したスパッタ１６を削ぎ落すことができる。 As a result, the spatter 16 adhering to the tip portion 18a of the nozzle body 18 is removed by the action of elastic deformation of the bending portion 32 and the action of moving the nozzle 12 by the welding device 14 without installing a separate drive source. It is scraped off at the tip portion 34 of 10. Thereby, the spatter 16 adhering to the nozzle 12 of the welding apparatus 14 can be scraped off economically and easily without complicating the apparatus configuration.

また、板ばね２６の少なくとも一部を撓み部３２として構成することにより、板ばね２６のばね反力を利用して撓みを戻し、スパッタ１６を削ぎ落すことが可能となる。これにより、低コストでスパッタ除去装置１０を構成することができる。 Further, by configuring at least a part of the leaf spring 26 as the bending portion 32, it is possible to return the bending by utilizing the spring reaction force of the leaf spring 26 and scrape off the spatter 16. As a result, the spatter removing device 10 can be configured at low cost.

また、スパッタ除去装置１０の先端部３４は、ノズル本体１８の外周面１８ｂの先端部１８ａ側に当接する際に、ノズル本体１８の先端部１８ａに指向するように、撓み部３２から延びていれば、ノズル１２を相対的に移動させた際に、ノズル本体１８の先端部１８ａとスパッタ１６との間にスパッタ除去装置１０の先端部３４が喰い込みやすくなる。これにより、スパッタ１６を容易に削ぎ落すことができ、スパッタ１６の除去効率を向上させることができる。 Further, the tip portion 34 of the spatter removing device 10 extends from the bending portion 32 so as to be directed toward the tip portion 18a of the nozzle body 18 when abutting on the tip portion 18a side of the outer peripheral surface 18b of the nozzle body 18. For example, when the nozzle 12 is relatively moved, the tip portion 34 of the spatter removing device 10 tends to bite between the tip portion 18a of the nozzle body 18 and the spatter 16. As a result, the spatter 16 can be easily scraped off, and the removal efficiency of the spatter 16 can be improved.

また、スパッタ除去装置１０において、撓み部３２及び先端部３４が一体的に構成されているか、又は、撓み部３２及び先端部３４のうち、少なくとも１つが交換可能であればよい。撓み部３２及び先端部３４が一体的に構成されていれば、部品点数を削減して、簡素な構成を実現することができる。また、撓み部３２及び先端部３４のうち、少なくとも１つが交換可能とすれば、摩耗等で消耗した部品のみ交換すればよいので、メンテナンス性が向上する。 Further, in the spatter removing device 10, it is sufficient that the bending portion 32 and the tip portion 34 are integrally configured, or at least one of the bending portion 32 and the tip portion 34 is replaceable. If the flexible portion 32 and the tip portion 34 are integrally configured, the number of parts can be reduced and a simple configuration can be realized. Further, if at least one of the flexible portion 32 and the tip portion 34 can be replaced, only the parts worn out due to wear or the like need to be replaced, so that the maintainability is improved.

なお、本発明は、上述の実施形態に限らず、この明細書の記載内容に基づき、種々の構成を採り得ることは勿論である。 It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that various configurations can be adopted based on the contents described in this specification.

Claims (5)

溶接装置（１４）のノズル（１２）に付着したスパッタ（１６）を除去するスパッタ除去装置（１０）において、
弾性変形可能な撓み部（３２）と、
前記撓み部に支持され、前記ノズルの外壁（１８ｂ）に当接可能な先端部（３４）と、
を有し、
前記溶接装置による前記ノズルの径方向への相対的な移動により、前記外壁が前記先端部に当接して、前記外壁から前記先端部への押圧力で前記撓み部が撓み、前記溶接装置による前記ノズルの該ノズルの基端側の方向への相対的な移動により、前記撓み部の撓みが戻る際に、前記ノズルの先端（１８ａ）側に付着した前記スパッタを前記先端部で前記ノズルから削ぎ落す、スパッタ除去装置。 In the spatter removing device (10) for removing the spatter (16) adhering to the nozzle (12) of the welding device (14).
Elastically deformable flexible portion (32) and
A tip portion (34) supported by the flexible portion and capable of contacting the outer wall (18 b) of the nozzle,
Have,
Due to the relative movement of the nozzle in the radial direction by the welding device, the outer wall abuts on the tip portion, and the bending portion bends due to the pressing force from the outer wall to the tip portion, and the welding device causes the bending portion. When the bending of the bending portion returns due to the relative movement of the nozzle toward the base end side of the nozzle, the spatter adhering to the tip end (18a) side of the nozzle is scraped from the nozzle by the tip portion. Drop, spatter removal device. 請求項１記載のスパッタ除去装置において、
板ばね（２６）の少なくとも一部が前記撓み部として構成される、スパッタ除去装置。 In the spatter removing device according to claim 1,
A spatter removing device in which at least a part of a leaf spring (26) is configured as the flexible portion. 請求項１又は２記載のスパッタ除去装置において、
前記先端部は、前記ノズルの外壁に当接する際に、前記ノズルの先端に指向するように、前記撓み部から延びている、スパッタ除去装置。 In the spatter removing device according to claim 1 or 2.
A spatter removing device in which the tip portion extends from the bending portion so as to be directed toward the tip of the nozzle when abutting on the outer wall of the nozzle. 請求項１～３のいずれか１項に記載のスパッタ除去装置において、
前記撓み部及び前記先端部が一体的に構成されているか、又は、前記撓み部及び前記先端部のうち、少なくとも１つが交換可能である、スパッタ除去装置。 In the spatter removing device according to any one of claims 1 to 3.
A spatter removing device in which the flexible portion and the tip portion are integrally configured, or at least one of the flexible portion and the tip portion is replaceable. 溶接装置のノズルに付着したスパッタを除去するスパッタ除去方法において、
弾性変形可能な撓み部に支持される先端部が前記ノズルの外壁に当接可能であるスパッタ除去装置を用いて、
前記溶接装置による前記ノズルの径方向への相対的な移動により、前記外壁を前記先端部に当接させ、前記外壁から前記先端部への押圧力で前記撓み部を撓ませ、
前記溶接装置による前記ノズルの該ノズルの基端側の方向への相対的な移動により、前記撓み部の撓みを戻した際に、前記ノズルの先端側に付着した前記スパッタを前記先端部で前記ノズルから削ぎ落す、スパッタ除去方法。 In the spatter removal method for removing spatter adhering to the nozzle of the welding equipment,
Using a spatter removing device in which the tip portion supported by the elastically deformable flexible portion can abut on the outer wall of the nozzle.
The outer wall is brought into contact with the tip portion by the relative movement of the nozzle in the radial direction by the welding device, and the bending portion is flexed by the pressing force from the outer wall to the tip portion.
When the bending of the bending portion is returned by the relative movement of the nozzle toward the base end side of the nozzle by the welding device, the spatter adhering to the tip end side of the nozzle is said to be said at the tip portion. A spatter removal method that scrapes off from the nozzle.
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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2593953Y2 (en) 1993-03-02 1999-04-19 義孝 藤井 Sputter removal equipment for torch for gas shielded arc welding
US20180015562A1 (en) 2015-01-31 2018-01-18 Audi Ag Cleaning device for mechanically cleaning a gas nozzle of a gas-shielded welding torch

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61111784A (en) * 1984-11-05 1986-05-29 Kawasaki Heavy Ind Ltd Nozzle cleaner
EP1772671A1 (en) * 2005-10-08 2007-04-11 INPRO Innovationsgesellschaft für fortgeschrittene Produktionssysteme in der Fahrzeugindustrie mbH Cleaning station for a robot-assisted or automated burner

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2593953Y2 (en) 1993-03-02 1999-04-19 義孝 藤井 Sputter removal equipment for torch for gas shielded arc welding
US20180015562A1 (en) 2015-01-31 2018-01-18 Audi Ag Cleaning device for mechanically cleaning a gas nozzle of a gas-shielded welding torch

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