JP2006019230A - Induction heating device and induction quenching device - Google Patents

Induction heating device and induction quenching device Download PDF

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JP2006019230A
JP2006019230A JP2004198597A JP2004198597A JP2006019230A JP 2006019230 A JP2006019230 A JP 2006019230A JP 2004198597 A JP2004198597 A JP 2004198597A JP 2004198597 A JP2004198597 A JP 2004198597A JP 2006019230 A JP2006019230 A JP 2006019230A
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coil
workpiece
induction heating
groove
induction
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Shigeo Yoshida
茂男 吉田
Akira Udagawa
彰 宇田川
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Fuji Electronics Industry Co Ltd
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Fuji Electronics Industry Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

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Abstract

<P>PROBLEM TO BE SOLVED: To provide an induction quenching device capable of performing desired induction heating at a groove formed on the circumference face of a work without leaving an unquenched portion. <P>SOLUTION: This induction heating device applies induction-heating a groove 10 of a ring shape formed along the outer circumference face of the work W, and comprises a split type coil 100 which is arranged annularly and opposed to the groove of the work W, power supply parts 200, 200 which supply high frequency currents to a first and a second coils 110, 120 of the split type coil 100, respectively, and a rotating mechanism 300 which rotates the work W relatively with respect to the split type coil 100. Cross-section shapes of the first and the second coils 110, 120 are different from each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、ワークの周面に沿って設けられた溝部を誘導加熱する誘導加熱装置及び誘導焼入装置に関する。   The present invention relates to an induction heating apparatus and induction quenching apparatus for induction heating a groove provided along a peripheral surface of a workpiece.

従来の誘導焼入装置としては、ワークの周面に沿って設けられた溝部の一部に対向配置される加熱コイルと、ワークを周方向に回転させる回転機構とを備えたものがある( 特許文献１参照) 。   As a conventional induction hardening apparatus, there is one provided with a heating coil disposed to face a part of a groove portion provided along a peripheral surface of a workpiece and a rotating mechanism for rotating the workpiece in a circumferential direction (Patent) Reference 1).

この誘導焼入装置を用いてワークの溝部を焼入する場合、加熱コイルの加熱開始位置と、加熱終了位置とが重ならないようにしなければならない。なぜなら、加熱開始位置と、加熱終了位置とが重なると、重なった部分に対して再加熱を行うことなり、その結果、当該重なった部分に硬化層を形成することができないことがあるからである。   When quenching the groove portion of the workpiece using this induction quenching apparatus, it is necessary to prevent the heating start position of the heating coil from overlapping with the heating end position. This is because if the heating start position and the heating end position overlap, reheating is performed on the overlapped portion, and as a result, a cured layer may not be formed on the overlapped portion. .

特開平１０−２０４５３７号公報JP-A-10-204537

ところが、加熱コイルの加熱開始位置と、加熱終了位置とが重ならないようにすると、当該加熱開始位置と加熱終了位置との間に未焼入部分が生じる。この未焼入部分は焼入が施されてないことから劣化し易い。特に、ワークが大型化すると、当該未焼入部分の領域が広くなることから、ワークの短寿命化の原因となっている。   However, if the heating start position of the heating coil is not overlapped with the heating end position, an unquenched portion is generated between the heating start position and the heating end position. This unquenched part is easily deteriorated because it is not quenched. In particular, when the workpiece is increased in size, the unquenched region becomes wider, which causes a shortened life of the workpiece.

本発明は、上記事情に鑑みて創案されたものであって、その目的とするところは、未焼入部分を生じさせることなく、ワークの周面に設けられた溝部に所望の誘導加熱をすることができる誘導加熱装置及び誘導焼入装置を提供することにある。   The present invention was devised in view of the above circumstances, and the object of the present invention is to perform desired induction heating on the groove provided on the peripheral surface of the workpiece without causing an unquenched portion. An object of the present invention is to provide an induction heating apparatus and an induction hardening apparatus that can perform the above-described process.

上記課題を解決するために、本発明の誘導加熱装置は、ワークの周面に沿って設けられた溝部を誘導加熱する誘導加熱装置であって、環状に配置されており且つワークの溝部に対向する割型コイルと、ワークを割形コイルに対して相対的に回転させる回転機構とを具備し、前記割形コイルは断面形状が異なる複数種類のコイルを有することを特徴としている。   In order to solve the above-described problems, an induction heating device of the present invention is an induction heating device that induction-heats a groove provided along a peripheral surface of a workpiece, and is arranged in an annular shape and faces the groove of the workpiece. And a rotating mechanism for rotating the workpiece relative to the split coil, wherein the split coil has a plurality of types of coils having different cross-sectional shapes.

前記割型コイルのコイルに高周波電流を各々供給する複数の電源部を有している。この電源部のうち少なくとも一部の電源部は他の電源部とは異なる周波数の高周波電流を供給するように設定することができる。   A plurality of power supply sections are provided for supplying high-frequency currents to the coils of the split coil. At least some of the power supply units can be set to supply a high-frequency current having a frequency different from that of the other power supply units.

前記割型コイルのうち少なくとも一部のコイルはワークの溝部とのギャップ長を他のコイルと当該溝部とのギャップ長と異なるように設定することができる。   At least some of the split coils can be set so that the gap length with the groove portion of the workpiece is different from the gap length between the other coil and the groove portion.

ワークの溝部の断面形状が略半円状である場合、前記割型コイルは、略半円弧状の第１のコイルと、略半円弧状の第２のコイルとを有し、第１のコイルのワーク対向面はワークの周面に対して略平行な平面状になっている一方、第２のコイルのワーク対向面は対向する側に凸の略半円状になっている。   When the cross-sectional shape of the groove portion of the workpiece is substantially semicircular, the split coil includes a first coil having a substantially semicircular arc shape and a second coil having a substantially semicircular arc shape, and the first coil The workpiece facing surface has a planar shape substantially parallel to the peripheral surface of the workpiece, while the workpiece facing surface of the second coil has a substantially semicircular shape convex toward the facing side.

本発明の誘導焼入装置は、ワークの周面に沿って設けられた溝部を誘導加熱する誘導焼入装置であって、ワークの溝部を誘導加熱する上記誘導加熱装置と、当該溝部を冷却する冷却手段とを備える。   An induction hardening apparatus according to the present invention is an induction hardening apparatus that induction heats a groove provided along a peripheral surface of a work, the induction heating apparatus that induction heats a groove of the work, and the groove. Cooling means.

本発明の請求項１に係る誘導加熱装置による場合、割型コイルの各コイルを環状に配置すると共に、当該割形コイルを用いてワークを回転させつつ当該ワークの溝部を誘導加熱するようになっている。よって、当該溝部に未焼入部分が生じることない。しかも、断面形状が異なる複数種類のコイルを用い、当該コイルに加熱箇所をそれぞれ分担をさせるようにしたことから、当該溝部に所望の誘導加熱をすることができ、その結果、当該溝部に所望の硬化層を形成することが可能になる。   In the induction heating device according to claim 1 of the present invention, each coil of the split coil is arranged in an annular shape, and the groove portion of the work is induction heated while rotating the work using the split coil. ing. Therefore, an unquenched portion does not occur in the groove. In addition, since a plurality of types of coils having different cross-sectional shapes are used and the heating locations are assigned to the coils, the desired induction heating can be performed on the groove, and as a result, the desired groove can be applied to the groove. A cured layer can be formed.

本発明の請求項２に係る誘導加熱装置による場合、少なくとも割型コイルの一部のコイルに他のコイルとは異なる周波数の高周波電流を供給することで、ワークの溝部の加熱具合を調節することができる。よって、更に、ワークの溝部に所望の誘導加熱をすることが可能になる。   In the case of the induction heating apparatus according to claim 2 of the present invention, the heating condition of the groove portion of the workpiece is adjusted by supplying a high-frequency current having a frequency different from that of the other coils to at least some of the split-type coils. Can do. Therefore, desired induction heating can be further performed on the groove portion of the workpiece.

本発明の請求項３に係る誘導加熱装置による場合、少なくとも割型コイルの一部のコイルのワークの溝部とのギャップ長を他のコイルのワークの溝部とのギャップ長と異ならせることで、ワークの溝部の加熱具合を調節することができる。よって、更に、ワークの溝部に所望の誘導加熱をすることが可能になる。   In the case of the induction heating device according to claim 3 of the present invention, at least a part of the split-type coil has a gap length with a work groove portion of a coil different from a gap length with a work groove portion of another coil. It is possible to adjust the heating condition of the groove portion. Therefore, desired induction heating can be further performed on the groove portion of the workpiece.

本発明の請求項４に係る誘導加熱装置による場合、割型コイルは、略半円弧状の第１のコイルと、略半円弧状の第２のコイルとを有し、第１のコイルのワーク対向面はワークの周面に対して略平行な平面状になっている一方、第２のコイルのワーク対向面は対向する側に凸の略半円状になっている。このような割形コイルを用いると、第１のコイルがワークの断面形状が略半円状である溝部の角部を重点的に誘導加熱する一方、、第２のコイルが当該溝部の略円形の溝本体を重点的に誘導加熱する。これにより当該溝部に所望の誘導加熱をすることができる。よって、当該溝部に所望の硬化層を形成することが可能になる。   In the case of the induction heating device according to claim 4 of the present invention, the split coil has a substantially semicircular arc-shaped first coil and a substantially semicircular arc-shaped second coil, and the work of the first coil The opposing surface has a planar shape substantially parallel to the peripheral surface of the workpiece, while the workpiece opposing surface of the second coil has a substantially semicircular shape convex toward the opposing side. When such a split coil is used, the first coil mainly induces and heats the corners of the groove part having a substantially semicircular cross-sectional shape, while the second coil is substantially circular in the groove part. Induction heating of the groove body is focused. Thereby, desired induction heating can be performed on the groove. Therefore, a desired hardened layer can be formed in the groove.

本発明の請求項５に係る誘導焼入装置による場合、請求項１、２、３又は４の誘導加熱装置と同様の効果を奏する。   When the induction quenching apparatus according to claim 5 of the present invention is used, the same effects as those of the induction heating apparatus according to claim 1, 2, 3 or 4 can be obtained.

以下、本発明の実施の形態に係る誘導焼入装置について図面を参照しながら説明する。図１は本発明の実施の形態に係る誘導焼入装置の模式的断面図、図２は同装置の割型コイルの平面図、図３は同装置の割形コイルの分解平面図である。   Hereinafter, an induction hardening apparatus according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic sectional view of an induction hardening apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of a split coil of the apparatus, and FIG. 3 is an exploded plan view of the split coil of the apparatus.

図１に示す誘導焼入装置は、円柱状のワークＷの外周面に沿って設けられたリング状の溝部１０を誘導加熱する誘導加熱装置であって、環状に配置されており且つワークＷの溝部１０に対向する割型コイル１００と、この割形コイル１００の第１、第２のコイル１１０、１２０に高周波電流を各々供給する電源部２００、２００と、ワークＷを割形コイル１００に対して相対的に回転させる回転機構３００とを具備している。以下、各部を詳しく説明する。なお、溝部１０の断面形状は略半円状になっている。   The induction hardening apparatus shown in FIG. 1 is an induction heating apparatus that induction-heats a ring-shaped groove portion 10 provided along the outer peripheral surface of a columnar workpiece W, and is arranged in an annular shape. The split coil 100 that faces the groove 10, the power supply units 200 and 200 that respectively supply high-frequency currents to the first and second coils 110 and 120 of the split coil 100, and the workpiece W to the split coil 100. And a rotating mechanism 300 that relatively rotates. Hereinafter, each part will be described in detail. In addition, the cross-sectional shape of the groove part 10 is substantially semicircular.

割型コイル１００は、図２及び図３に示すように、略半円弧状の第１のコイル１１０と、略半円弧状の第２のコイル１２０とに分割される。第１、第２のコイル１１０、１２０は銅製のパイプを湾曲させて構成されたものであり、自身の熱で加熱し過ぎないよう内部に冷却液が循環するようになっている。第１のコイルの１１０の断面形状は長方形となっている( 図１参照) 。即ち、第１のコイル１１０のワーク対向面はワークＷの周面に対して平行な平面状になっている。一方、第２のコイル１２０の断面形状は半円と長方形とが接合された形状となっている( 図１参照) 。即ち、第２のコイル１２０のワーク対向面は対向する側に凸の略半円状になっている。これにより、第１のコイル１１０は当該溝部１０の角部１０ａを重点的に誘導加熱する一方、第２のコイル１２０は当該溝部１０の半円状の溝本体１０ｂを重点的に誘導加熱する( 図１参照) 。このように第１、第２のコイル１１０、１２０に加熱箇所を分担させている。   As shown in FIGS. 2 and 3, the split coil 100 is divided into a first coil 110 having a substantially semicircular arc shape and a second coil 120 having a substantially semicircular arc shape. The first and second coils 110 and 120 are configured by bending a copper pipe, and the coolant is circulated inside so as not to be heated by its own heat. The cross-sectional shape of the first coil 110 is rectangular (see FIG. 1). In other words, the workpiece facing surface of the first coil 110 has a planar shape parallel to the peripheral surface of the workpiece W. On the other hand, the cross-sectional shape of the second coil 120 is a shape in which a semicircle and a rectangle are joined (see FIG. 1). That is, the workpiece facing surface of the second coil 120 has a substantially semicircular shape that is convex toward the facing side. Accordingly, the first coil 110 mainly induces and heats the corner 10a of the groove 10 while the second coil 120 mainly induces and heats the semicircular groove body 10b of the groove 10 ( (See FIG. 1). Thus, the heating location is assigned to the first and second coils 110 and 120.

第１のコイル１１０の両端部には絶縁性を有する取付板１１１が各々設けられている( 図２及び図３参照) 。一方、第２のコイル１２０の両端部には絶縁性を有する取付板１２１が各々設けられている( 図２及び図３参照) 。取付板１１１は第２のコイル１２０の両端部に、取付板１２１は第１のコイル１１０の両端部に各々ネジ止めされる。これにより、第１、第２のコイル１１０、１２０が互いに連結される( 図２参照) 。この第１、第２のコイル１１０、１２０は連結した状態でコイル保持具４００に取り付けられる。このコイル保持具４００は図示しないコイル移動機構に取り付けられている。即ち、前記コイル移動機構によりコイル保持具４００をＸ、Ｙ、Ｚ方向に移動させ、割型コイル１００をワークＷの溝部１０に対向配置するようになっている。このとき、第２のコイル１２０のワークＷの溝部１０とのギャップ長βが第１のコイル１１０のワークＷの溝部１０とのギャップ長αに比べて短くなるように配置される( 図１参照) 。   Insulating attachment plates 111 are provided at both ends of the first coil 110 (see FIGS. 2 and 3). On the other hand, an insulating mounting plate 121 is provided at each end of the second coil 120 (see FIGS. 2 and 3). The mounting plate 111 is screwed to both ends of the second coil 120, and the mounting plate 121 is fixed to both ends of the first coil 110. As a result, the first and second coils 110 and 120 are connected to each other (see FIG. 2). The first and second coils 110 and 120 are attached to the coil holder 400 in a connected state. The coil holder 400 is attached to a coil moving mechanism (not shown). That is, the coil holder 400 is moved in the X, Y, and Z directions by the coil moving mechanism, and the split coil 100 is disposed to face the groove portion 10 of the workpiece W. At this time, it arrange | positions so that the gap length (beta) with the groove part 10 of the workpiece | work W of the 2nd coil 120 may become short compared with the gap length (alpha) with the groove part 10 of the workpiece | work W of the 1st coil 110 (refer FIG. 1). )

電源部２００、２００は第１、第２のコイル１１０、１２０と各々電気接続されている。電源部２００、２００は第１、第２のコイル１１０、１２０に対して同じ周波数の高周波電流を供給するようになっている。   The power supply units 200 and 200 are electrically connected to the first and second coils 110 and 120, respectively. The power supply units 200 and 200 supply high-frequency currents having the same frequency to the first and second coils 110 and 120.

回転機構３００は、図１に示すように、ワークＷが載置されるテーブル３１０( 後述する加熱位置) と、このテーブル３１０を回転させる駆動部３２０とを有する。ワークＷは図示しない搬送機構により、搬入位置、加熱位置、冷却位置、搬出位置に搬送される。   As shown in FIG. 1, the rotation mechanism 300 includes a table 310 (a heating position described later) on which the workpiece W is placed, and a drive unit 320 that rotates the table 310. The workpiece W is conveyed to a carry-in position, a heating position, a cooling position, and a carry-out position by a conveyance mechanism (not shown).

冷却手段は、図示しないが、ここでは、冷却液が貯水された貯水槽である。この冷却手段に加熱されたワークＷを浸漬することにより当該ワークＷの溝部１０が冷却される。   Although not shown, the cooling means is a water storage tank in which a coolant is stored here. By immersing the heated workpiece W in the cooling means, the groove portion 10 of the workpiece W is cooled.

以下、このような誘導焼入装置の使用方法について説明すると共に、ワークＷの溝部１０の焼入方法について説明する。   Hereinafter, a method of using such an induction hardening apparatus will be described, and a method of hardening the groove 10 of the workpiece W will be described.

まず、前記搬送機構を動作させ、ワークＷをテーブル３１０上に載置する。その後、前記コイル移動機構を動作させ、第１、第２のコイル１１０、１２０をワークＷの溝部１０に対向配置する。その状態で、回転機構３００を動作させ、ワークＷを回転させつつ、電源部２００、２００を動作させ、第１、第２のコイル１１０、１２０にそれぞれ高周波電流を供給する。これにより、ワークＷの溝部１０が誘導加熱される。その後、当該ワークＷを冷却位置に搬送し、冷却手段である貯水槽に入れ、浸漬冷却をする。   First, the transport mechanism is operated to place the workpiece W on the table 310. Thereafter, the coil moving mechanism is operated, and the first and second coils 110 and 120 are disposed to face the groove 10 of the workpiece W. In this state, the rotating mechanism 300 is operated to rotate the work W while operating the power supply units 200 and 200 to supply high-frequency currents to the first and second coils 110 and 120, respectively. Thereby, the groove part 10 of the workpiece | work W is induction-heated. Then, the said workpiece | work W is conveyed to a cooling position, put into the water storage tank which is a cooling means, and immersion cooling is carried out.

このような誘導焼入装置による場合、異なる断面形状の第１、第２のコイル１１０、１２０を有する割型コイル１００を用いて、ワークＷ回転させつつ誘導加熱するようにしたことから、従来例のごとく溝部に未焼入部分を生じることなく所望の焼入することができる。   In the case of such an induction hardening apparatus, since the split coil 100 having the first and second coils 110 and 120 having different cross-sectional shapes is used and induction heating is performed while rotating the workpiece W, the conventional example. As described above, desired quenching can be performed without generating an unquenched portion in the groove.

この誘導焼入装置は、ここでは、円柱状のワークＷの外周面に設けられたリング状の溝部１０を誘導加熱するとしたが、周面に沿って溝部１０が設けられているものであれば使用することが可能である。例えば、円柱状のワークに外周面に螺旋状の溝部が設けられもの、円筒状のワークの内周面に溝部が設けられたもの、円筒状のワークの内周面に螺旋状の溝部が設けられもの等に使用することが可能である。なお、溝部１０は略円形状であるとしたが、これに限定されることはない。   In this induction hardening apparatus, the ring-shaped groove portion 10 provided on the outer peripheral surface of the columnar workpiece W is induction-heated here, as long as the groove portion 10 is provided along the peripheral surface. It is possible to use. For example, a cylindrical workpiece provided with a spiral groove on the outer peripheral surface, a cylindrical workpiece provided with a groove on the inner peripheral surface, and a spiral groove provided on the inner peripheral surface of a cylindrical workpiece. It is possible to use it for things. In addition, although the groove part 10 was substantially circular shape, it is not limited to this.

割型コイル１００については、第１、第２のコイル１１０、１２０に分割されるとしたが、３以上のコイルに分割することも当然可能である。コイルの断面形状については、ワークＷの溝部１０の形状に応じて任意に構成するものであり、上記実施例は一例に過ぎない。よって、各コイルの断面形状は少なくとも一部のコイルが他のコイルの断面形状と異なっていれば良く、各コイルの断面形状が異なっていても良い。   The split coil 100 is divided into the first and second coils 110 and 120, but it is naturally possible to divide into three or more coils. About the cross-sectional shape of a coil, it comprises arbitrarily according to the shape of the groove part 10 of the workpiece | work W, The said Example is only an example. Therefore, the cross-sectional shape of each coil may be that at least some of the coils are different from the cross-sectional shape of the other coils, and the cross-sectional shape of each coil may be different.

また、割型コイル１００は、円形であるとしたが、第１、第２のコイル１１０、１２０の少なくとも一部をワークＷの溝部１０に向けて凸にしたり、ワークＷの溝部１０から離れる方向に凸にしたりした歪な形状とすることができる。即ち、コイル移動機構を通じてギャップ長を異にするのではなく、コイルの形状でギャップ長を異にするようにしても良い。   In addition, although the split coil 100 is circular, at least a part of the first and second coils 110 and 120 is protruded toward the groove portion 10 of the workpiece W or away from the groove portion 10 of the workpiece W. It can be made into the distorted shape which made it convex. That is, the gap length may be made different depending on the coil shape, instead of making the gap length different through the coil moving mechanism.

更に、割型コイル１００の各コイルとワークＷの溝部１０とのギャップ長は溝部１０をどのように加熱するかによって各々適宜選択設定するものである。よって、割型コイルのうち少なくとも一部のコイルとワークの溝部とのギャップ長が他のコイルと当該溝部とのギャップ長と異なっていれば良く、すべてのギャップ長が異なるように設定しても良い。   Further, the gap length between each coil of the split coil 100 and the groove portion 10 of the workpiece W is appropriately selected and set depending on how the groove portion 10 is heated. Therefore, the gap length between at least some of the split coils and the groove portion of the workpiece may be different from the gap length between the other coil and the groove portion, and all gap lengths may be set differently. good.

電力部２００、２００については、同じ周波数の高周波電流を供給するとしたが、第１、第２のコイル１１０、１２０に異なる周波数の高周波電流を供給するようにしても良い。高周波電流の周波数についても、ワークＷの溝部１０の形状及びコイルの断面形状に応じて当該溝部１０をどのように加熱するかによって適宜選択設定するものである。よって、割型コイル１００が３以上に分割されている場合には、少なくとも一部のコイルに他のコイルとは異なる周波数の高周波電流を流すようにすると良く、すべてのコイルに異なる周波数の高周波電流を供給するようにしても良い。   The power units 200 and 200 are supplied with a high-frequency current having the same frequency, but may be supplied with a high-frequency current having a different frequency to the first and second coils 110 and 120. The frequency of the high-frequency current is also appropriately selected and set depending on how the groove 10 is heated according to the shape of the groove 10 of the workpiece W and the cross-sectional shape of the coil. Therefore, when the split coil 100 is divided into three or more, it is preferable that a high-frequency current having a frequency different from that of the other coils is caused to flow in at least some of the coils. May be supplied.

回転機構３００については、ワークを割形コイルに対して相対的に回転し得る限りどのようなものを用いてもかまわない。   Any rotation mechanism 300 may be used as long as the workpiece can be rotated relative to the split coil.

冷却手段については、冷却液が貯水された貯水槽であるとしたが、これに限定されることはなく、冷却ジャケットを備え、当該冷却ジャケットによりワークの溝部に冷却液を噴射し冷却するようにしても良いし、割型コイル１００と冷却ジャケットとを一体的に構成し、加熱した後に冷却液をワークの溝部に噴射して冷却するようにしても良い。   The cooling means is a water storage tank in which the coolant is stored. However, the cooling means is not limited to this. Alternatively, the split coil 100 and the cooling jacket may be integrally formed, and after heating, the coolant may be sprayed into the groove portion of the workpiece to be cooled.

なお、ここでは誘導焼入装置として説明したが、冷却手段を備えない誘導加熱装置とすることが可能であることは言うまでもない。   In addition, although it demonstrated as an induction hardening apparatus here, it cannot be overemphasized that it can be set as the induction heating apparatus which is not provided with a cooling means.

本発明の実施の形態に係る誘導焼入装置の模式的断面図である。It is typical sectional drawing of the induction hardening apparatus which concerns on embodiment of this invention. 同装置の割型コイルの平面図である。It is a top view of the split type coil of the apparatus. 同装置の割形コイルの分解平面図である。It is an exploded plan view of the split coil of the same device.

符号の説明Explanation of symbols

Ｗ ワーク
１０ 溝部
１００ 割型コイル
１１０ 第１のコイル
１２０ 第２のコイル
２００ 電力部
３００ 回転機構 W Work 10 Groove 100 Split-type coil 110 First coil 120 Second coil 200 Power unit 300 Rotating mechanism

Claims (5)

ワークの周面に沿って設けられた溝部を誘導加熱する誘導加熱装置において、環状に配置されており且つワークの溝部に対向する割型コイルと、ワークを割形コイルに対して相対的に回転させる回転機構とを具備し、前記割形コイルは断面形状が異なる複数種類のコイルを有することを特徴とする誘導加熱装置。   In an induction heating apparatus that induction-heats a groove provided along the peripheral surface of a workpiece, the split coil that is arranged in an annular shape and faces the groove of the workpiece, and the workpiece is rotated relative to the split coil. An induction heating device, wherein the split coil has a plurality of types of coils having different cross-sectional shapes. 請求項１記載の誘導加熱装置において、前記割型コイルのコイルに高周波電流を各々供給する複数の電源部を有しており、この電源部のうち少なくとも一部の電源部が他の電源部とは異なる周波数の高周波電流を供給するようになっていることを特徴とする誘導加熱装置。   The induction heating apparatus according to claim 1, further comprising a plurality of power supply units that respectively supply high-frequency currents to the coils of the split coil, wherein at least some of the power supply units are connected to other power supply units. Is an induction heating apparatus characterized by supplying high-frequency currents of different frequencies. 請求項１記載の誘導加熱装置において、前記割型コイルのうち少なくとも一部のコイルはワークの溝部とのギャップ長が他のコイルと当該溝部とのギャップ長と異なっていることを特徴とする誘導加熱装置。   2. The induction heating apparatus according to claim 1, wherein a gap length between at least a part of the split-type coils and a groove portion of the workpiece is different from a gap length between another coil and the groove portion. Heating device. ワークの溝部の断面形状が略半円状である請求項１、２又は３記載の誘導加熱装置において、前記割型コイルは、半円弧状の第１のコイルと、半円弧状の第２のコイルとを有し、第１のコイルのワーク対向面はワークの周面に対して略平行な平面状になっている一方、第２のコイルのワーク対向面は対向する側に凸の略半円状になっていることを特徴とする誘導加熱装置。   4. The induction heating device according to claim 1, wherein a cross-sectional shape of the groove portion of the workpiece is substantially semicircular, wherein the split coil includes a semicircular arc-shaped first coil and a semicircular arc-shaped second coil. The workpiece-facing surface of the first coil is a flat surface that is substantially parallel to the peripheral surface of the workpiece, while the workpiece-facing surface of the second coil is a substantially semi-convex shape that protrudes toward the opposite side. An induction heating device characterized by being circular. ワークの周面に沿って設けられた溝部を誘導加熱する誘導焼入装置において、ワークの溝部を誘導加熱する１、２、３又は４記載の誘導加熱装置と、当該溝部を冷却する冷却手段とを備えた誘導焼入装置。   In an induction hardening apparatus for induction heating a groove provided along the peripheral surface of the work, the induction heating apparatus according to 1, 2, 3, or 4 for induction heating the groove of the work, and a cooling means for cooling the groove Induction quenching equipment equipped with.
JP2004198597A 2004-07-05 2004-07-05 Induction heating device and induction quenching device Pending JP2006019230A (en)

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WO2013129686A1 (en) * 2012-03-02 2013-09-06 Neturen Co., Ltd. Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece
JP2015042769A (en) * 2013-08-26 2015-03-05 高周波熱錬株式会社 Heat treatment method and induction heating coil
CN118028576A (en) * 2024-04-12 2024-05-14 盐城高周波热炼有限公司 High-frequency induction heating quenching device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013129686A1 (en) * 2012-03-02 2013-09-06 Neturen Co., Ltd. Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece
CN104169443A (en) * 2012-03-02 2014-11-26 高周波热錬株式会社 Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece
CN104169443B (en) * 2012-03-02 2017-03-22 高周波热錬株式会社 Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece
TWI594665B (en) * 2012-03-02 2017-08-01 高周波熱鍊股份有限公司 Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece
US10959297B2 (en) 2012-03-02 2021-03-23 Neturen Co., Ltd. Heating coil, heat treatment apparatus, and heat treatment method for elongated workpiece
CN103103331A (en) * 2013-02-01 2013-05-15 万向钱潮传动轴有限公司 Shaft part induction quenching and synchronous induction tempering method and heating inductor
JP2015042769A (en) * 2013-08-26 2015-03-05 高周波熱錬株式会社 Heat treatment method and induction heating coil
CN118028576A (en) * 2024-04-12 2024-05-14 盐城高周波热炼有限公司 High-frequency induction heating quenching device
CN118028576B (en) * 2024-04-12 2024-06-11 盐城高周波热炼有限公司 High-frequency induction heating quenching device

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