JP4242792B2 - High frequency induction heating coil device - Google Patents

High frequency induction heating coil device Download PDF

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JP4242792B2
JP4242792B2 JP2004061559A JP2004061559A JP4242792B2 JP 4242792 B2 JP4242792 B2 JP 4242792B2 JP 2004061559 A JP2004061559 A JP 2004061559A JP 2004061559 A JP2004061559 A JP 2004061559A JP 4242792 B2 JP4242792 B2 JP 4242792B2
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coil
burr
induction heating
frequency induction
coil conductor
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JP2005251595A (en
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横尾　　敏浩
啓一 久保
要介 大橋
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Denki Kogyo Co Ltd
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Description

本発明は、例えば摩擦圧接（摩擦係合）により接合される２部材の接合箇所に生じるバリを適温に加熱し、前記バリの切削除去を容易化及び効率化するための高周波誘導加熱コイル装置に関する。   The present invention relates to a high-frequency induction heating coil device for heating a burr generated at a joining portion of two members joined by, for example, friction welding (friction engagement) to an appropriate temperature, and facilitating and improving the efficiency of cutting and removing the burr. .

同種又は異種の２つの部材（サイズの異なる部材を含む）を一体的に接合する一方法として、摩擦圧接が従来より採用されている。この摩擦圧接にて２つの部材（例えば、金属製管材）を一体に接合する場合には、図５に示すように、部材１と部材２との接合箇所には突起状のバリ３が生じる。このバリ３は除去する必要があり、従来では、通常、バイト４などによる切削加工によってバリ取りを行なうようにしている。   As one method for integrally joining two members of the same type or different types (including members of different sizes), friction welding has been conventionally employed. When two members (for example, metal pipes) are integrally joined by this friction welding, as shown in FIG. 5, a protruding burr 3 is generated at a joining portion between the member 1 and the member 2. The burr 3 needs to be removed, and conventionally, the burr is usually removed by cutting with a cutting tool 4 or the like.

また、このバリ３を除去する公知技術として、特許文献１（特開平７−３２８９０６号公報）や特許文献２（特開平８−２１５８６３号公報）に記載のものが提案されている。なお、特許文献１に記載のバリ切削除去装置は、ディスクグラインダにて回転駆動される砥石をバリの部分に押しつけてバリを切削除去するようにしたものであり、特許文献２に記載の摩擦圧接装置は、バリの外周上にローラを配置してこのローラをバリの部分に押圧することによりバリを押し潰すようにしたものである。
特開平７−３２８９０６号公報 特開平８−２１５８６３号公報 As known techniques for removing this burr 3, those disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 7-328906) and Patent Document 2 (Japanese Patent Laid-Open No. 8-215863) are proposed. Note that the burr cutting and removing apparatus described in Patent Document 1 is a device in which a grindstone that is rotationally driven by a disk grinder is pressed against a burr portion to cut and remove the burr, and the friction welding described in Patent Document 2 is used. In the apparatus, a roller is disposed on the outer periphery of the burr, and the burr is crushed by pressing the roller against the burr part.
JP 7-328906 A JP-A-8-215863

しかしながら、バリ３をバイト４などにて切削加工して除去する場合には、バリ３は比較的高硬度のため、バイトが短時間に摩擦して使用不能の状態となり、バイト４の交換を頻繁に行わねばならないという不具合がある。また、特許文献１に記載の砥石によるバリの切削除去では、バイトなどによる切削加工と同様に砥石の摩耗が早く、効率的なバリ取りを行なうことができないというも問題点がある。また、特許文献２に記載のローラによるバリの押し潰しでは、バリの硬度が高い場合にはバリの除去を充分に行なうことができないという問題点がある。   However, when the burr 3 is removed by cutting with a cutting tool 4 or the like, the burr 3 is relatively hard, so that the cutting tool rubs in a short time and becomes unusable, and the cutting tool 4 is frequently replaced. There is a problem that must be done. In addition, the removal and removal of burrs with a grindstone described in Patent Document 1 has a problem that the grindstone wears quickly and efficient deburring cannot be performed as in the cutting with a cutting tool. Further, the crushing of burrs by the roller described in Patent Document 2 has a problem that the burrs cannot be sufficiently removed when the burrs have a high hardness.

本発明は、以上の問題点を解決すべくなされたものであって、その目的は、切削加工によるバリ除去に先立って、バリの全体を高周波誘導加熱により適温（例えば、焼き鈍し温度）に高周波誘導加熱し、その後のバリの切削除去の容易化や効率化を可能にする高周波誘導加熱コイル装置を提供することにある。   The present invention has been made to solve the above-described problems. The purpose of the present invention is to induce high-frequency induction of the entire burr to an appropriate temperature (for example, annealing temperature) by high-frequency induction heating prior to removal of the burr by cutting. An object of the present invention is to provide a high-frequency induction heating coil device which can be heated and facilitated and efficient in the subsequent removal and removal of burrs.

以上の目的を達成するために、本発明では、２つの部材の接合箇所に生じる突起状のバリを削除するのに先立って、前記バリを適温に高周波誘導加熱し、これにより前記バリの切削除去を効率化するために用いられる高周波誘導加熱コイル装置において、前記バリをほぼ半円弧状に覆う半開放鞍型の形状の互いに隣接する第１のコイル導体部及び第２のコイル導体部を有するコイル本体を具備し、前記第１のコイル導体部は、その先端部分が前記バリの突出方向における側面位置にまで延びる突出部を有するコイル導体から成り、前記第２のコイル導体部は、前記バリの外周面位置に近接する対称断面形状のコイル導体から成り、電源部から前記コイル本体に電力を供給するリード部と前記コイル本体との間に、透明材から成る補強ブロックを架設し、前記コイル本体の温度を測定するための温度計測用レーザ照射器の照射光を、前記補強ブロックを通して前記コイル本体に照射するようにしている。
また、本発明では、前記第１のコイル導体部に磁性材を取付ける一方、前記第２のコイル導体部には磁性材を取付けないようにしている。
また、本発明では、前記２つの部材は、摩擦圧接により接合される同種又は異種の２つの部材であるようにしている。
また、本発明では、前記２つの部材のうちの少なくとも一方が、外径の異なる複数の軸状部分を有する部材であり、前記複数の軸部の間の段面が前記２つの部材の接合箇所に生じるバリの近傍位置に存在する場合に、前記コイル本体と前記段面との間に磁束遮断用の磁性板を介在させるようにしている。 In order to achieve the above object, according to the present invention, prior to removing the protruding burrs generated at the joining location of two members, the burrs are heated to an appropriate temperature by high frequency induction heating, whereby the burrs are removed by cutting. In the high frequency induction heating coil device used for improving the efficiency of the coil, the coil having the first coil conductor portion and the second coil conductor portion adjacent to each other in the shape of a semi-open saddle type covering the burr in a substantially semicircular arc shape The first coil conductor portion includes a coil conductor having a protruding portion whose tip portion extends to a side surface position in the protruding direction of the burr, and the second coil conductor portion includes the burr of the burr. Ri coil conductors of symmetrical cross-sectional shape in proximity to the outer circumferential surface position, while the power supply portion of the coil body lead section which supplies power to the coil body, a reinforcing block made of a transparent material Erection, and the irradiation light temperature measurement laser irradiation device for measuring the temperature of the coil body, and so as to irradiate the coil body through the reinforcing block.
In the present invention, the magnetic material is attached to the first coil conductor portion, while the magnetic material is not attached to the second coil conductor portion.
In the present invention, the two members are two members of the same type or different types joined by friction welding.
In the present invention, at least one of the two members is a member having a plurality of shaft-like portions having different outer diameters, and a stepped surface between the plurality of shaft portions is a joining portion of the two members. In the case where it exists in the vicinity of the burr generated in the magnetic field, a magnetic plate for interrupting magnetic flux is interposed between the coil body and the step surface.

請求項１に記載の本発明は、先端部分がバリの突出方向における側面位置にまで延びる突出部を有するコイル導体から成る第１のコイル導体部と、バリの外周面位置に近接する対称断面形状のコイル導体から成る第２のコイル導体部とを互いに近接配置してバリを高周波誘導加熱し、電源部から前記コイル本体に電力を供給するリード部と前記コイル本体との間に、透明材から成る補強ブロックを架設し、前記コイル本体の温度を測定するための温度計測用レーザ照射器の照射光を、前記補強ブロックを通して前記コイル本体に照射するようにしたものであるから、切削加工によるバリ除去に先立って、バリの全体を高周波誘導加熱により適温（例えば、焼き鈍し温度）に高周波誘導加熱し、その後のバリの切削除去の容易化や効率化を図ることができ、後続の機械加工にてバリを綺麗に切削除去することが可能となる。また、機械加工に用いられるバイトなどの寿命を長くすることが可能となる。さらに、本発明によれば、リード部とコイル本体との間に架設した透明材から成る補強ブロックを通して、温度計測用レーザ照射器の照射光をコイル本体に照射するようにしたので、補強ブロックにより高周波誘導加熱コイル装置を補強することができると共に、レーザ照射によりバリの加熱温度を測定することができ、この測定温度に基いてバリの加熱温度が所望の適温となるように正確に設定することが可能である。
The present invention according to claim 1 includes a first coil conductor portion formed of a coil conductor having a protruding portion whose tip portion extends to a side surface position in the protruding direction of the burr, and a symmetrical sectional shape close to the outer peripheral surface position of the burr. The second coil conductor portion made of the coil conductor is arranged close to each other to heat the burrs by high-frequency induction heating , and between the lead portion for supplying power from the power source portion to the coil body and the coil body, from the transparent material The reinforced block is constructed, and the coil body is irradiated with the irradiation light of the temperature measuring laser irradiator for measuring the temperature of the coil body. Prior to removal, the entire burr is subjected to high-frequency induction heating to an appropriate temperature (for example, annealing temperature) by high-frequency induction heating, thereby facilitating and improving the efficiency of subsequent removal of the burr. Bets can be, it is possible to clean cutting and removing a burr in the subsequent machining. In addition, it is possible to extend the life of a tool used for machining. Furthermore, according to the present invention, the coil body is irradiated with the irradiation light of the temperature measuring laser irradiator through the reinforcement block made of a transparent material provided between the lead portion and the coil body. The high frequency induction heating coil device can be reinforced, and the burr heating temperature can be measured by laser irradiation. Based on this measurement temperature, the burr heating temperature should be set accurately to the desired temperature. Is possible.

また、請求項２に記載の本発明は、第１のコイル導体部に磁性材を取付ける一方、第２のコイル導体部には磁性材を取付けないようにしたものであるから、第１のコイル導体部から発生する磁束が磁性材によりバリに集中することとなり、しかも第１のコイル導体部の先端部分に設けられた突出部（バリの側面位置まで延びる延設部分）によりバリの側面が高周波誘導加熱されることとなるため、バリの高周波誘導加熱を確実に行なうことができる。さらに、本発明によれば、バリの全体を短時間に加熱すべく第１のコイル導体部に隣接せしめて第２のコイル部をバリの外周の近傍に配置し、かつ磁性材（コア）により第１のコイル導体部と第２のコイル導体部との間の磁束の打ち消しがないようにしているので、バリ全体の高周波誘導加熱の効率化を図ることができる。   Further, in the present invention according to claim 2, the magnetic material is attached to the first coil conductor portion, while the magnetic material is not attached to the second coil conductor portion. The magnetic flux generated from the conductor portion is concentrated on the burr by the magnetic material, and the side surface of the burr is made high-frequency by the protruding portion (extending portion extending to the side surface position of the burr) provided at the tip portion of the first coil conductor portion. Since induction heating is performed, high-frequency induction heating of the burr can be reliably performed. Further, according to the present invention, in order to heat the entire burr in a short time, the second coil part is disposed in the vicinity of the outer periphery of the burr, adjacent to the first coil conductor part, and by the magnetic material (core). Since the magnetic flux between the first coil conductor portion and the second coil conductor portion is not canceled, the efficiency of high-frequency induction heating of the entire burr can be increased.

また、請求項３に記載の本発明は、２つの部材が摩擦圧接により接合される同種又は異種の２つの部材であるようにしたものであるから、摩擦圧接すべき２つの部材の寸法や材質が同じであっても或いは互いに異なっていても、それらの条件に拘わりなく、摩擦圧接の施行時に２つの部材の接合箇所に生じる突起状（例えば、山状）のバリを効率良く高周波誘導加熱することができる。 Further, in the present invention according to claim 3, since the two members are two members of the same kind or different kinds joined by friction welding, the dimensions and materials of the two members to be friction welded Regardless of the conditions, even if they are the same or different from each other, high-frequency induction heating is efficiently performed for protrusion-like (for example, mountain-shaped) burrs that occur at the joint location of two members when performing friction welding. be able to.

また、請求項４に記載の本発明は、２つの部材のうちの少なくとも一方が、外径の異なる複数の軸状部分を有する部材であり、複数の軸部の間の段面が２つの部材の接合箇所に生じるバリの近傍位置に存在する場合（例えば、カムシャフトのシャフトとフロントエンドピースのように、外径の異なる２部材の摩擦圧接によって段面の近傍に生じたバリを加熱する場合）に、コイル本体と段面との間に磁束遮断用の磁性板（例えば、珪素鋼板）を介在させるようにしたものであるから、磁性板の存在により、コイル本体から前記段面への磁束を遮断することができ、バリの加熱を効率的に行うことができる。   According to a fourth aspect of the present invention, at least one of the two members is a member having a plurality of shaft portions having different outer diameters, and the step surface between the plurality of shaft portions is two members. In the vicinity of burrs that occur at the joints (for example, when heating burrs generated in the vicinity of the step surface by friction welding of two members with different outer diameters, such as the shaft of the camshaft and the front end piece. ) In which a magnetic plate (for example, a silicon steel plate) for interrupting magnetic flux is interposed between the coil body and the step surface, the magnetic flux from the coil body to the step surface due to the presence of the magnetic plate. Can be cut off and the burr can be heated efficiently.

以下、本発明の実施形態について図１〜図４を参照して詳述する。なお、図１〜図４において、図５と同様の部分には同一の符号を付して重複する説明を省略する。   Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 4, the same parts as those in FIG. 5 are denoted by the same reference numerals, and redundant description is omitted.

図１及び図２は、本発明の一実施形態に係る高周波誘導加熱コイル装置１０の全体構造を示すものであって、この高周波誘導加熱コイル装置１０は、例えば管材などの２つの部材１，２の接合箇所に生じる突起状のバリを削除するのに先立って、バリを適温（例えば、焼き鈍し温度）に加熱し、これにより前記バリの切削除去を効率化するために用いられるものである。   1 and 2 show the overall structure of a high-frequency induction heating coil device 10 according to an embodiment of the present invention. This high-frequency induction heating coil device 10 includes two members 1 and 2 such as pipes, for example. Prior to the removal of the protruding burrs generated at the joints, the burrs are heated to an appropriate temperature (for example, an annealing temperature), whereby the burrs are removed efficiently.

本実施形態の高周波誘導加熱コイル装置１０は、図１及び図２に示すように、コイル本体１１及びこのコイル本体１１に電源部１２から電力を供給するリード部１３を有するコイル構成体１４と、リード部１３とコイル本体との間に架設されこれを補強するガラスエポキシから成る透明な補強ブロック（透明材）１５と、温度測定用のレーザ照射器１６とから構成されている。また、上述のコイル本体１１は、バリ３をほぼ半円弧状に覆う半開放鞍型の形状の互いに平行状に隣接して配置された半開放鞍型の第１のコイル導体部１８及び第２のコイル導体部１９を具備しており、これらの第１及び第２のコイル導体部１８，１９は互いに直列接続されている。また、第１及び第２のコイル導体部１８，１９に連結されるリード部１３の部分には、絶縁用のガラステープ２０が巻き付けられている。   As shown in FIGS. 1 and 2, the high-frequency induction heating coil device 10 of the present embodiment includes a coil main body 11 and a coil structure 14 having a lead portion 13 that supplies power to the coil main body 11 from a power supply portion 12; It is composed of a transparent reinforcing block (transparent material) 15 made of glass epoxy that is installed between the lead portion 13 and the coil body and reinforces it, and a laser irradiator 16 for temperature measurement. Further, the coil body 11 described above has a semi-open saddle-shaped first coil conductor portion 18 and a second coil-shaped first coil conductor portion 18 arranged adjacent to each other in a semi-open saddle-like shape covering the burr 3 in a substantially semicircular arc shape. The first and second coil conductor portions 18 and 19 are connected in series to each other. An insulating glass tape 20 is wound around the portion of the lead portion 13 connected to the first and second coil conductor portions 18 and 19.

ここで、上述のコイル本体１１を構成する第１及び第２のコイル導体部１８，１９についてさらに詳細に述べると、次の通りである。まず、第１のコイル導体部１８は、図２及び図３に示すように、対称断面形状のものでなく、コイル本体１１の中央面（コイル本体１の湾曲面に平行な、コイル導体部１８，１９間の平面）に対してやや傾斜して配置されると共に、その先端部分（バリ３に対向する側の端部部分）がバリ３の突出方向における側面位置（側面Ｓ）にまで延びる突出部Ｍを有するコイル導体から構成されている。また、第１のコイル導体部１８は、冷却水を通すための通路２１を有する導電性パイプ材から構成されており、その外周には第１のコイル導体部１８に磁束を集中させるための磁性材から成るコア２２が取付けられている。なお、第１のコイル導体部１８を既述の如く傾斜に配置し、かつ、その先端部分に突出部Ｍを設けるようにしているのは、後述するように、バリ３の側面Ｓに当該第１のコイル導体部１８の突出部Ｍを近接させ、これによってバリ３に対しての高周波誘導加熱を容易にしかも効果的（効率的）に行なわせるためである。   Here, the first and second coil conductor portions 18 and 19 constituting the coil body 11 will be described in more detail as follows. First, as shown in FIG. 2 and FIG. 3, the first coil conductor portion 18 is not of a symmetric cross-sectional shape, but is a central surface of the coil body 11 (the coil conductor portion 18 parallel to the curved surface of the coil body 1). , 19 is slightly inclined with respect to the flat surface, and the tip portion (the end portion on the side facing the burr 3) extends to the side surface position (side surface S) in the protruding direction of the burr 3. It is comprised from the coil conductor which has the part M. The first coil conductor portion 18 is made of a conductive pipe material having a passage 21 for passing cooling water, and a magnetic material for concentrating the magnetic flux on the first coil conductor portion 18 on the outer periphery thereof. A core 22 made of a material is attached. As described above, the first coil conductor portion 18 is disposed at an inclination and the protrusion M is provided at the tip portion of the first coil conductor portion 18 on the side surface S of the burr 3 as described later. This is because the projecting portion M of one coil conductor portion 18 is brought close to each other, whereby high-frequency induction heating for the burr 3 is facilitated and effectively (effectively) performed.

一方、第２のコイル導体部１９は、バリ３の外周面位置に近接する対称断面形状（例えば、前記中央面に平行な面に対して左右対称の断面矩形状）のコイル導体から構成されている。かくして、上述の第１のコイル導体部１８の突出部Ｍは、バリ３の外周面に対向配置される第２のコイル導体部１９の内径側端面Ｎよりも内径側に突出した位置に配置されるようになっている。また、第２のコイル導体部１９は、冷却水を通すための通路２３を有する導電性パイプ材から構成されており、後述するように、その内径側の湾曲面Ｎがバリ３の外周面Ｐに近接して配置されるようになっている。なお、第２のコイル導体部１９には、既述の第１のコイル導体部１８の場合とは異なり、磁束集中用のコアは取付けられていない。   On the other hand, the second coil conductor portion 19 is composed of a coil conductor having a symmetric cross-sectional shape close to the position of the outer peripheral surface of the burr 3 (for example, a symmetric cross-sectional rectangular shape with respect to a plane parallel to the central surface). Yes. Thus, the protruding portion M of the first coil conductor portion 18 described above is disposed at a position protruding to the inner diameter side from the inner diameter side end surface N of the second coil conductor portion 19 disposed to face the outer peripheral surface of the burr 3. It has become so. Further, the second coil conductor portion 19 is made of a conductive pipe material having a passage 23 for passing cooling water, and the curved surface N on the inner diameter side is an outer peripheral surface P of the burr 3 as will be described later. It is arranged close to. Unlike the case of the first coil conductor portion 18 described above, the second coil conductor portion 19 is not provided with a magnetic flux concentration core.

次に、例えば互いに同径の金属性パイプ材から成る部材１と部材２とを摩擦接合させた場合に生じるバリ３の除去手順について説明する。なお、図２及び図３に示すバリ３は、２つ山状（突起状）のものであるが、この山状の形状に限定されものではなく、各種形状の突起である場合であっても、バリ３の除去は可能である。   Next, a procedure for removing the burrs 3 generated when the members 1 and 2 made of metallic pipe materials having the same diameter, for example, are friction-joined will be described. The burrs 3 shown in FIGS. 2 and 3 are two ridges (projections). However, the burrs 3 are not limited to these ridges, and may be projections of various shapes. The burr 3 can be removed.

まず、バリ３を削除するのに先立ち、高周波誘導加熱コイル装置１０を用いてバリ３を適温に高周波誘導加熱する。この高周波誘導加熱に際しては、高周波誘導加熱コイル装置１０のコイル構成体１４のコイル本体１１をバリ３の近傍位置に対向して配置する。具体的には、図３に示すように、コイル本体１１を構成する第１のコイル導体部１８の先端部分の突出部Ｍを、バリ３の突出方向における側面Ｓに近接して対向配置すると共に、コイル本体１１を構成する第２のコイル導体部１９の内径側端面Ｎを、バリ３の外周面Ｐに近接して対向配置する。このような状態の下で、摩擦圧接された部材１，２をその軸線を中心に回転駆動すると共に、電源部１２からリード部１３を介してコイル本体１１（第１及び第２のコイル導体部１８，１９）に電力を供給して高周波電流を流すことにより、２つの部材１，２にそれぞれ生じているバリ３を高周波誘導加熱する。   First, prior to removing the burrs 3, the burrs 3 are heated by high frequency induction to an appropriate temperature using the high frequency induction heating coil device 10. In this high-frequency induction heating, the coil body 11 of the coil structure 14 of the high-frequency induction heating coil device 10 is disposed so as to face the position near the burr 3. Specifically, as shown in FIG. 3, the protruding portion M at the distal end portion of the first coil conductor portion 18 constituting the coil body 11 is disposed so as to oppose the side surface S in the protruding direction of the burr 3. The inner diameter side end face N of the second coil conductor portion 19 constituting the coil body 11 is disposed close to the outer peripheral face P of the burr 3 so as to be opposed thereto. Under such a state, the members 1 and 2 that are friction-welded are driven to rotate about the axis thereof, and the coil main body 11 (first and second coil conductor portions) is connected from the power source portion 12 through the lead portion 13. 18 and 19), by supplying electric power and flowing a high-frequency current, the burr 3 generated in each of the two members 1 and 2 is heated by high-frequency induction.

この際、第１のコイル導体部１８にはコア２２が配置されているので、第１のコイル導体部１８及び第２のコイル導体部１９の磁力は相互に大きく異なり、両コイル導体部１８，１９間での磁束の打ち消しが発生せず、第１のコイル導体部１８の磁束がバリ３の側に集中する。これにより、バリ３の加熱が効率的に行われる。これに加えて、第１のコイル導体部１８に対向している一方のバリ３（図２及び図３において右側のバリ３）の側面Ｓには第１のコイル導体部１８に設けられた突出部Ｍが対向配置されるため、バリ３は側面Ｓからも加熱されることとなる結果、十分な温度上昇が得られることとなる。なお、この際のバリ３の加熱温度は、レーザ照射器１６から発射されて補強ブロック１５を通過するレーザ照射光により測定し、その測定温度を監視しながらバリ３の切削除去に最も効果的な条件（例えば、焼き鈍し温度）にまで正確に加熱する。   At this time, since the core 22 is disposed in the first coil conductor portion 18, the magnetic forces of the first coil conductor portion 18 and the second coil conductor portion 19 are greatly different from each other. No cancellation of the magnetic flux between 19 occurs, and the magnetic flux of the first coil conductor portion 18 concentrates on the burr 3 side. Thereby, the burr 3 is efficiently heated. In addition to this, the side surface S of one burr 3 (the right burr 3 in FIGS. 2 and 3) facing the first coil conductor 18 protrudes from the first coil conductor 18. Since the part M is disposed oppositely, the burr 3 is also heated from the side surface S. As a result, a sufficient temperature rise is obtained. Note that the heating temperature of the burr 3 at this time is measured by laser irradiation light emitted from the laser irradiator 16 and passing through the reinforcing block 15, and the most effective for cutting and removing the burr 3 while monitoring the measurement temperature. Heat accurately to conditions (eg, annealing temperature).

かくして、バリ３が適温、例えば、焼き鈍し温度（バリ３の硬度が低くなる温度）に到達したら高周波誘導加熱コイル装置１０による高周波誘導加熱を遮断し、次いで機械加工によってバリ３を切削除去する。この場合、バリ３が切削加工に適する温度すなわちバリ３が十分に低硬度になる温度に加熱されているため、バリ３の切削除去を容易にかつ効率的に行うことができる。   Thus, when the burr 3 reaches an appropriate temperature, for example, an annealing temperature (a temperature at which the hardness of the burr 3 decreases), the high-frequency induction heating by the high-frequency induction heating coil device 10 is cut off, and then the burr 3 is removed by machining. In this case, since the burr 3 is heated to a temperature suitable for cutting, that is, a temperature at which the burr 3 has a sufficiently low hardness, the burr 3 can be easily and efficiently removed.

図４は、本発明の別の実施形態に係る高周波誘導加熱コイル装置３０を示している。この高周波誘導加熱コイル装置３０は、例えば、カムシャフトなどのように直径が異なる部分を有する部材に対して適用されるものであって、既述の高周波誘導加熱コイル装置１０に磁束遮断用の珪素鋼板（磁性板）３１を付設するようにしたものである。   FIG. 4 shows a high frequency induction heating coil device 30 according to another embodiment of the present invention. The high-frequency induction heating coil device 30 is applied to a member having a part having a different diameter, such as a camshaft, for example. A steel plate (magnetic plate) 31 is attached.

例えばカムシャフトの場合には、シャフト３２とフロントエンドピース３３とを摩擦圧接により一体に接合するのであるが、フロントエンドピース３３は、外径の異なる複数の軸状部分（シャフト３２と同径の小径部３２ａとこの小径部３２ａより大きな直径の大径部３２ｂ）とを有する部材であり、フロントエンドピース３３の本体部３２ａの直径とシャフト３２の直径とが可成り相異している。従って、この両者を摩擦圧接する場合には、両者の接合する位置がフロントエンドピース３３の小径部３２ａと大径部３２ｂとの間に存在する段面３４の近傍となり、その近傍部分にバリ３が生じる。このバリ３を加熱する際には、第１のコイル導体部１８を図４に示すようにフロントエンドピース３３の段面３４に近接して配置するため、これらの間で磁束が分散される。そのため、本実施形態の高周波誘導加熱コイル装置３０にあっては、フロントエンドピース３３の段面３４と第１のコイル導体部１８との間に磁束遮断用の珪素鋼板３１を介在させるようにしている。これにより、磁束がバリ３に集中し、バリの加熱が短時間で効率的に行われることとなる。なお、バリ３は焼き鈍し温度の付近で低硬度となるため、普通のバイトを用いてバリ３を容易にかつ完全にしかも綺麗に除去することができる。   For example, in the case of a camshaft, the shaft 32 and the front end piece 33 are integrally joined by friction welding, but the front end piece 33 is composed of a plurality of shaft-like portions having the same outer diameter (the same diameter as the shaft 32). This is a member having a small diameter portion 32a and a large diameter portion 32b) having a larger diameter than the small diameter portion 32a, and the diameter of the main body portion 32a of the front end piece 33 and the diameter of the shaft 32 are considerably different. Therefore, when both are friction-welded, the position where they are joined is in the vicinity of the step surface 34 existing between the small diameter portion 32a and the large diameter portion 32b of the front end piece 33, and there is a burr 3 in the vicinity thereof. Occurs. When the burr 3 is heated, the first coil conductor 18 is disposed close to the step surface 34 of the front end piece 33 as shown in FIG. Therefore, in the high frequency induction heating coil device 30 of the present embodiment, the magnetic steel sheet 31 for interrupting magnetic flux is interposed between the step surface 34 of the front end piece 33 and the first coil conductor portion 18. Yes. As a result, the magnetic flux concentrates on the burr 3, and the burr is heated efficiently in a short time. Since the burr 3 has a low hardness in the vicinity of the annealing temperature, the burr 3 can be easily and completely removed neatly using an ordinary tool.

以上、本発明の一実施形態について述べたが、本発明は、既述の実施形態に限定されるものではなく、本発明の技術的思想に基づいて各種の変形及び変更が可能である。例えば、本発明の高周波誘導加熱コイル装置１０，３０は、摩擦圧接によって生じるバリ３を加熱することに限定されるものではなく、２つの部材の接合箇所に発生する突起状のバリの加熱に適用することが可能であり、種々のバリの除去に広く使用され得るものである。勿論、同種材料のみならず異種材料間に生じるバリについても効率的な除去を行うことができる。また、第１のコイル導体部１８に設ける突出部Ｍの形状は各種に変更可能である。また、既述の高周波誘導加熱コイル装置３０にあっては、珪素鋼板３１に限らず他の各種の磁性材から成る板状部材を磁束遮断用として配置するようにしてもよい。また、第１及び第２のコイル導体部１８，１９は、図２〜図４に示すような配置関係に限定されることなく、図２〜図４に示す場合とは反対の配置関係に設定してもよい。また、段面３４がバリ３の左右両側に存在する場合には、各段面３４とコイル本体１１との間に珪素鋼板３１などの磁性材をそれぞれ介在させるようにしてもよい。また、本発明に係る高周波誘導加熱コイル装置は、摩擦圧接部がパイプ形状であって、それ以外の部位は機械加工した母材（例えば、パイプ部，中空加工部，丸棒など）となっている２つの部材に対しても適用可能である。   Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention. For example, the high-frequency induction heating coil devices 10 and 30 according to the present invention are not limited to heating the burr 3 generated by friction welding, but are applied to heating a protruding burr generated at a joint portion of two members. Can be widely used to remove various burrs. Of course, not only the same kind of material but also burrs generated between different kinds of materials can be efficiently removed. Moreover, the shape of the protrusion part M provided in the 1st coil conductor part 18 can be changed into various. Further, in the above-described high frequency induction heating coil device 30, not only the silicon steel plate 31, but also a plate-like member made of various other magnetic materials may be arranged for magnetic flux interruption. Further, the first and second coil conductor portions 18 and 19 are not limited to the arrangement relationship as shown in FIGS. 2 to 4, and are set to the arrangement relationship opposite to the case shown in FIGS. 2 to 4. May be. Further, when the step surfaces 34 are present on both the left and right sides of the burr 3, a magnetic material such as a silicon steel plate 31 may be interposed between each step surface 34 and the coil body 11. Further, in the high frequency induction heating coil device according to the present invention, the friction welding portion is a pipe shape, and other portions are machined base materials (for example, a pipe portion, a hollow processing portion, a round bar, etc.). The present invention can also be applied to two existing members.

本発明の一実施形態に係る高周波誘導加熱コイル装置の平面図である。It is a top view of the high frequency induction heating coil apparatus which concerns on one Embodiment of this invention. 図１の高周波誘導加熱コイル装置の断面図である。It is sectional drawing of the high frequency induction heating coil apparatus of FIG. 同径の２つの部材間に発生したバリを図１の高周波誘導加熱コイル装置にて高周波誘導加熱する際の状態を示す模式図である。It is a schematic diagram which shows the state at the time of carrying out the high frequency induction heating of the burr | flash which generate | occur | produced between two members of the same diameter with the high frequency induction heating coil apparatus of FIG. 本発明の別の実施形態に係る高周波誘導加熱コイル装置によりカムシャフトのシャフトとフロントエンドピースとの接合箇所に生じたバリを高周波誘導加熱する際の状態を示す模式図である。It is a schematic diagram which shows the state at the time of carrying out the high frequency induction heating of the burr | flash produced in the junction location of the shaft of a camshaft and a front end piece with the high frequency induction heating coil apparatus which concerns on another embodiment of this invention. 摩擦接合において生じるバリの従来の除去方法を示す模式図である。It is a schematic diagram which shows the conventional removal method of the burr | flash produced in friction joining.

符号の説明Explanation of symbols

１，２ 部材
３ バリ
１０，３０ 高周波誘導加熱コイル装置
１１ コイル本体
１２ 電源部
１３ リード部
１４ コイル構成体
１５ 補強ブロック（透明材）
１６ レーザ照射器
１８ 第１のコイル導体部
１９ 第１のコイル導体部
２２ コア（磁性材）
３１ 珪素鋼板（磁性板）
３２ シャフト
３３ フロントエンドピース
３４ 段面
Ｍ 突出部
Ｎ 内径側端面
Ｐ 外周面
Ｓ 側面 DESCRIPTION OF SYMBOLS 1, 2 Member 3 Burr 10,30 High frequency induction heating coil apparatus 11 Coil main body 12 Power supply part 13 Lead part 14 Coil structure 15 Reinforcement block (transparent material)
16 Laser Irradiator 18 First Coil Conductor Part 19 First Coil Conductor Part 22 Core (Magnetic Material)
31 Silicon steel plate (magnetic plate)
32 Shaft 33 Front end piece 34 Stepped surface M Protruding part N Inner diameter side end surface P Outer peripheral surface S Side surface

Claims (4)

２つの部材の接合箇所に生じる突起状のバリを削除するのに先立って、前記バリを適温に高周波誘導加熱し、これにより前記バリの切削除去を効率化するために用いられる高周波誘導加熱コイル装置であって、
前記バリをほぼ半円弧状に覆う半開放鞍型の形状の互いに隣接する第１のコイル導体部及び第２のコイル導体部を有するコイル本体を具備し、
前記第１のコイル導体部は、その先端部分が前記バリの突出方向における側面位置にまで延びる突出部を有するコイル導体から成り、
前記第２のコイル導体部は、前記バリの外周面位置に近接する対称断面形状のコイル導体から成り、
電源部から前記コイル本体に電力を供給するリード部と前記コイル本体との間に、透明材から成る補強ブロックを架設し、前記コイル本体の温度を測定するための温度計測用レーザ照射器の照射光を、前記補強ブロックを通して前記コイル本体に照射するようにしたこと、
を特徴とする高周波誘導加熱コイル装置。 Prior to the removal of the protruding burrs generated at the joint between the two members, the burrs are subjected to high-frequency induction heating to an appropriate temperature, and thereby the high-frequency induction heating coil device used for improving the efficiency of cutting and removing the burrs. Because
Comprising a coil body having a first coil conductor portion and a second coil conductor portion adjacent to each other in a semi-open saddle shape that covers the burr in a substantially semicircular arc shape;
The first coil conductor portion is composed of a coil conductor having a protruding portion whose tip portion extends to a side surface position in the protruding direction of the burr,
The second coil conductor section, Ri consists coil conductor symmetrical cross-sectional shape in proximity to the outer circumferential surface position of the burr,
Irradiation of a temperature measuring laser irradiator for measuring a temperature of the coil body by installing a reinforcing block made of a transparent material between a lead part for supplying power from the power source part to the coil body and the coil body That the coil body is irradiated with light through the reinforcing block;
A high-frequency induction heating coil device. 前記第１のコイル導体部に磁性材を取付ける一方、前記第２のコイル導体部には磁性材を取付けないことを特徴とする請求項１に記載の高周波誘導加熱コイル装置。   The high frequency induction heating coil device according to claim 1, wherein a magnetic material is attached to the first coil conductor portion, but no magnetic material is attached to the second coil conductor portion. 前記２つの部材は、摩擦圧接により接合される同種又は異種の２つの部材であることを特徴とする請求項１又は２に記載の高周波誘導加熱コイル装置。   The high frequency induction heating coil device according to claim 1 or 2, wherein the two members are two members of the same type or different types joined by friction welding. 前記２つの部材のうちの少なくとも一方が、外径の異なる複数の軸状部分を有する部材であり、前記複数の軸部の間の段面が前記２つの部材の接合箇所に生じるバリの近傍位置に存在する場合に、前記コイル本体と前記段面との間に磁束遮断用の磁性板を介在させるようにしたことを特徴とする請求項１乃至３の何れか１項に記載の高周波誘導加熱コイル装置。   At least one of the two members is a member having a plurality of shaft-like portions having different outer diameters, and a step surface between the plurality of shaft portions is a position near a burr generated at a joint portion of the two members. 4. The high frequency induction heating according to claim 1, wherein a magnetic plate for interrupting magnetic flux is interposed between the coil body and the stepped surface. Coil device.
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KR20150044978A (en) 2011-10-21 2015-04-27 니폰게이긴조쿠가부시키가이샤 Joining method
JP2013184272A (en) * 2012-03-09 2013-09-19 Aichi Sangyo Kk High-efficiency pipe cutting machine and pipe cutting method
JP7261678B2 (en) * 2019-07-04 2023-04-20 シチズン時計株式会社 Machine tools and processing methods
JP7475571B2 (en) 2020-03-18 2024-04-30 富山県 Bonding device and bonding method
CN115302065B (en) * 2022-08-05 2023-09-26 燕山大学 Efficient heating device and method

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