JP2002335655A - Method and apparatus for manufacturing small-sized motor - Google Patents

Method and apparatus for manufacturing small-sized motor

Info

Publication number
JP2002335655A
JP2002335655A JP2001140937A JP2001140937A JP2002335655A JP 2002335655 A JP2002335655 A JP 2002335655A JP 2001140937 A JP2001140937 A JP 2001140937A JP 2001140937 A JP2001140937 A JP 2001140937A JP 2002335655 A JP2002335655 A JP 2002335655A
Authority
JP
Japan
Prior art keywords
shaft
core
iron cores
laminated
iron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2001140937A
Other languages
Japanese (ja)
Other versions
JP4756566B2 (en
Inventor
Tsutomu Miyazaki
Eiji Suzuki
力 宮崎
英司 鈴木
Original Assignee
Miyaden Co Ltd
株式会社ミヤデン
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Miyaden Co Ltd, 株式会社ミヤデン filed Critical Miyaden Co Ltd
Priority to JP2001140937A priority Critical patent/JP4756566B2/en
Publication of JP2002335655A publication Critical patent/JP2002335655A/en
Application granted granted Critical
Publication of JP4756566B2 publication Critical patent/JP4756566B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

PROBLEM TO BE SOLVED: To provide a method and apparatus for manufacturing a small-sized motor, capable of facilitating layering work of an iron core for cost reduction in manufacture, and facilitating attaining of a rotor of high quality and stable performance. SOLUTION: In this method for manufacturing the small-sized motor in which a plurality of pieces of iron cores are layered and fixed at its axial hole with a shaft pierced to form a rotor, the plurality of pieces of the iron cores are layered with an adhesive interposed in at least either surface of the iron cores in the layering direction, and the each iron cores in layered state is induction- heated to the layer and fix the respective iron cores are fixed. The adhesive is previously integrated with the iron core, and the shaft is press-inserted in the axial hole of the layered iron core under an induction-heated condition.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、例えば携帯電話のバイ
ブレータモータ等のような小型モータの特に回転子の製
造方法及び製造装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a small motor such as a vibrator motor of a portable telephone, particularly a rotor.

【0002】[0002]

【従来の技術】従来、バイブレータモータの回転子にお
いては、珪素鋼板からなる鉄心を数十枚積層し、これを
ヒータやドライヤー等の加熱手段で加熱しつつ、鉄心の
軸孔にシャフトを圧入し、かつ鉄心間に介在されている
接着剤を介して各鉄心を積層固着することによって製造
されている。
2. Description of the Related Art Conventionally, in a rotor of a vibrator motor, dozens of iron cores made of a silicon steel plate are laminated, and the shaft is pressed into a shaft hole of the iron core while being heated by a heating means such as a heater or a dryer. It is manufactured by laminating and fixing each iron core via an adhesive interposed between the iron cores.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うな製造方法にあっては、加熱手段としてヒータやドラ
イヤーを使用しているため、加熱効率が劣ったり、鉄心
の軸孔へのシャフトの圧入作業が面倒で、これらの作業
時間が長くなって回転子の製造コストがアップし易いと
いう問題点を有し、特に携帯電話の普及と低コスト化が
急速に進む中で、製造コストの低減化が大きな課題とな
っている。
However, in such a manufacturing method, since a heater or a dryer is used as the heating means, the heating efficiency is poor, or the work of press-fitting the shaft into the shaft hole of the iron core is performed. However, there is a problem that the production time of the rotor is easily increased due to the troublesome work time. It is a big challenge.

【0004】また、ヒータやドライヤーによる加熱で
は、加熱状態にバラツキが発生し易く均一加熱が困難
で、シャフトに対する各鉄心の精度良い積層固着状態が
得られ難く、高品質で安定した性能の回転子を容易に製
造することが難しいという問題点も有している。
In addition, in the case of heating by a heater or a dryer, the heating state is likely to vary, and it is difficult to perform uniform heating. There is also a problem that it is difficult to easily produce

【0005】本発明は、このような事情に鑑みてなされ
たもので、その目的は、鉄心の積層作業等を容易に行え
て製造コストの低減化を図り得ると共に、高品質で安定
した性能の回転子等が容易に得られる小型モータの製造
方法及び製造装置を提供することにある。
SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has as its object to facilitate the work of laminating iron cores and to reduce the manufacturing cost, and to achieve high quality and stable performance. An object of the present invention is to provide a method and an apparatus for manufacturing a small motor in which a rotor and the like can be easily obtained.

【0006】[0006]

【課題を解決するための手段】かかる目的を達成すべ
く、本発明のうち請求項1記載の発明は、複数枚の鉄心
がその軸孔にシャフトを貫通状態で積層固着することに
より回転子等が形成される小型モータの製造方法であっ
て、前記鉄心の積層方向の少なくとも一方の面に接着剤
を介在させて複数枚の鉄心を積層させ、この積層状態の
鉄心を誘導加熱して各鉄心を積層固着することを特徴と
する。
In order to achieve the above object, according to the first aspect of the present invention, a plurality of iron cores are laminated and fixed to a shaft hole of the shaft while penetrating the shaft. A method of manufacturing a small motor, wherein a plurality of iron cores are laminated by interposing an adhesive on at least one surface in the laminating direction of the iron cores, and the iron cores in the stacked state are induction-heated to each iron core. Are laminated and fixed.

【0007】そして、前記接着剤は、請求項2記載の発
明のように、予め鉄心に一体化されていることが好まし
く、また、前記シャフトは、請求項3記載の発明のよう
に、誘導加熱状態の積層鉄心の軸孔に圧入されることが
好ましい。また、請求項4記載の発明のように、前記接
着剤が熱硬化性樹脂で形成されるかあるいは熱硬化性樹
脂を塗布することにより、該樹脂が回転子のカバーとし
て機能することが好ましい。
[0007] The adhesive is preferably integrated with the iron core in advance as in the second aspect of the present invention, and the shaft is induction-heated as in the third aspect of the present invention. It is preferable to press fit the shaft hole of the laminated core in the state. It is preferable that the resin functions as a cover of the rotor by forming the adhesive with a thermosetting resin or applying the thermosetting resin.

【0008】また、請求項5記載の発明は、複数枚の鉄
心がその軸孔にシャフトを貫通状態で積層固着すること
により回転子等が形成される小型モータの製造装置であ
って、接着剤を介して積層された複数枚の積層鉄心を圧
力付与状態で支持する鉄心支持手段と、該鉄心支持手段
で支持された積層鉄心の軸孔にシャフトを圧入するシャ
フト圧入手段と、前記積層鉄心の周囲に配置された加熱
コイルと、該加熱コイルに高周波電流を供給して積層鉄
心を誘導加熱するトランジスタインバータと、を備えた
ことを特徴とする。
According to a fifth aspect of the present invention, there is provided an apparatus for manufacturing a small motor in which a rotor or the like is formed by laminating and fixing a plurality of iron cores in a shaft hole thereof in a state of penetrating a shaft. Core supporting means for supporting a plurality of laminated cores laminated through a pressure applied state, shaft press-fitting means for press-fitting a shaft into a shaft hole of the laminated core supported by the core supporting means, and A heating coil is provided around the heating coil, and a transistor inverter that supplies a high-frequency current to the heating coil and inductively heats the laminated core is provided.

【0009】[0009]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて詳細に説明する。図1は、本発明に係わる製
造装置の一実施例の構成図を示している。図において、
製造装置1は、積層された数十枚の珪素鋼板からなる鉄
心2を圧力付与状態で支持する鉄心支持装置3と、積層
された鉄心2の軸孔2a(図3参照)にその一方側から
シャフト8を押し込むシャフト圧入装置4と、積層され
た鉄心2の周囲に所定の間隙を有して配置された加熱コ
イル5と、この加熱コイル5に所定の高周波電流を供給
するトランジスタインバータ6と、これらを制御する制
御装置7を有している。
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a configuration diagram of an embodiment of the manufacturing apparatus according to the present invention. In the figure,
The manufacturing apparatus 1 includes an iron core supporting device 3 for supporting an iron core 2 made of several tens of silicon steel sheets in a pressure-applied state, and a shaft hole 2a (see FIG. 3) of the iron core 2 from one side thereof. A shaft press-fitting device 4 for pushing the shaft 8, a heating coil 5 arranged around the laminated core 2 with a predetermined gap, a transistor inverter 6 for supplying a predetermined high-frequency current to the heating coil 5, It has a control device 7 for controlling these.

【0010】前記鉄心支持装置3は、シャフト支持孔を
有する固定支持板9と、この固定支持板9に対して接近
もしくは離間し得る可動支持板10を付帯して有してい
る。そして、制御装置7の制御信号により、可動支持板
10が前進することで積層された鉄心2(積層鉄心2)
に所定の圧力が付与され、可動支持板10が後退するこ
とで両支持板9、10に鉄心2がセットされたり積層鉄
心2が取り出しできるように構成されている。
The iron core supporting device 3 has a fixed supporting plate 9 having a shaft supporting hole and a movable supporting plate 10 which can approach or separate from the fixed supporting plate 9. The movable support plate 10 is advanced by the control signal of the control device 7 to stack the iron cores 2 (laminated iron cores 2).
The core 2 is set on the support plates 9 and 10 and the laminated core 2 can be taken out by applying a predetermined pressure to the movable support plate 10 and retreating the movable support plate 10.

【0011】前記シャフト圧入装置4は、シャフト圧入
板11を付帯して有し、制御装置7の制御信号により、
シャフト圧入板11が前進することで積層状態の鉄心2
の軸孔2aにシャフト8が圧入され、シャフト圧入板1
1が後退することで該板11にシャフト8がセットされ
たりシャフト8が圧入された積層鉄心2が取り出しでき
るように構成されている。
The shaft press-fitting device 4 has a shaft press-fitting plate 11 attached thereto.
When the shaft press-fitting plate 11 advances, the iron core 2 in a laminated state is
The shaft 8 is press-fitted into the shaft hole 2a of the
The shaft 1 is set on the plate 11 by retreating the plate 11, and the laminated core 2 into which the shaft 8 is press-fitted can be taken out.

【0012】前記加熱コイル5は、例えば銅パイプを鉄
心2の外形形状に対応するように巻回することにより形
成されて、その両端部がトランジスタインバータ6に水
冷けーブル12を介して電気的に接続されると共に、該
インバータ6に付帯して設けた図示しない冷却水供給装
置により、水冷ケーブル12を介してその銅パイプ内に
冷却水が循環供給されるように構成されている。なお、
加熱コイル5の形状は、円形のコイル形式であっても良
いし馬蹄形式であっても良い。
The heating coil 5 is formed, for example, by winding a copper pipe so as to correspond to the outer shape of the iron core 2. Both ends of the heating coil 5 are electrically connected to the transistor inverter 6 via a water-cooled cable 12. The cooling water supply device (not shown) attached to the inverter 6 is connected to the inverter 6 so that cooling water is circulated and supplied into the copper pipe via the water cooling cable 12. In addition,
The shape of the heating coil 5 may be a circular coil type or a horseshoe type.

【0013】この加熱コイル5が接続されるトランジス
タインバータ6は、例えばMOSFET、IGBT等の
半導体スイッチング素子を用いた図示しないインバータ
回路と、出力トランス(変流器)等を有し、数KHz〜
数MHzの所定出力の高周波電流を、前記水冷ケーブル
12を介して加熱コイル5に出力し得るように構成され
ている。また、制御装置7は、マイコンやシーケンサー
等によって構成され、各装置を所定の手順にしたがって
制御するように構成されている。
The transistor inverter 6 to which the heating coil 5 is connected has an inverter circuit (not shown) using a semiconductor switching element such as a MOSFET or IGBT, an output transformer (current transformer), and the like.
A high-frequency current having a predetermined output of several MHz can be output to the heating coil 5 via the water-cooled cable 12. The control device 7 includes a microcomputer, a sequencer, and the like, and is configured to control each device according to a predetermined procedure.

【0014】次に、上記製造装置1を使用した小型モー
タの回転子の製造方法の一例を図2及び図3等に基づい
て説明する。先ず、珪素鋼板のプレス加工で製造された
鉄心2の少なくとも接合面に例えば熱硬化性樹脂等の接
着剤13を塗布(K101)して、鉄心2を所定枚数、
図3(a)の矢印イの如く積層して固定支持板9と可動
支持板10間にセットすると共に、シャフト8をセット
(K102)する。この時、鉄心2は図示しない位置決
め治具でその軸孔2aが一致されると共に、シャフト8
はその一端部が積層鉄心2の軸孔2aに臨みかつ他端部
がシャフト圧入板11に支持された状態に設定される。
Next, an example of a method for manufacturing a rotor of a small motor using the manufacturing apparatus 1 will be described with reference to FIGS. First, an adhesive 13 such as a thermosetting resin is applied (K101) to at least the joint surface of the iron core 2 manufactured by pressing a silicon steel plate, and a predetermined number of iron cores 2 are formed.
3A, the layers are stacked and set between the fixed support plate 9 and the movable support plate 10, and the shaft 8 is set (K102). At this time, the core 2 has its shaft hole 2a aligned with a positioning jig (not shown), and
Is set so that one end thereof faces the shaft hole 2a of the laminated core 2 and the other end is supported by the shaft press-fit plate 11.

【0015】鉄心2とシャフト8がセットされると、ト
ランジスタインバータ6がオン(K103)して、水冷
ケーブル12を介して加熱コイル5に高周波電流が供給
され、この加熱コイル5から発生する磁束により積層鉄
心2が誘導加熱される。この誘導加熱と略同時にシャフ
ト圧入装置4を作動させてシャフト圧入板11を前進さ
せ、誘導加熱により拡開(もしくは一部溶融)している
軸孔2aに、図3(a)の矢印ロの如くシャフト8を圧
入(K104)する。
When the core 2 and the shaft 8 are set, the transistor inverter 6 is turned on (K103), and a high-frequency current is supplied to the heating coil 5 via the water-cooled cable 12, and the magnetic flux generated from the heating coil 5 The laminated core 2 is induction-heated. At substantially the same time as the induction heating, the shaft press-fitting device 4 is operated to advance the shaft press-fitting plate 11, and the shaft hole 2a that has been expanded (or partially melted) by the induction heating is fitted with the arrow B in FIG. The shaft 8 is press-fitted (K104) as described above.

【0016】また、誘導加熱と略同時に鉄心支持装置3
を作動させて、可動支持板10を前進させて積層鉄心2
に所定の圧力を付与(K105)する。この圧力付与に
より、誘導加熱で溶融している各鉄心2の接着剤13が
隣接する鉄心2間に密状態で介在し、この状態でトラン
ジスタインバータ6をオフ(K106)させて、例えば
自然冷却(もしくは冷却媒体による強制冷却)する。こ
れにより、溶融した接着剤13が硬化してその接着性に
より隣接する各鉄心2が接着固定されると共に、図3
(b)に示すように、その軸孔2aにシャフト8が焼き
嵌め状態で強固に嵌挿配置された回転子14が得られ
る。
At substantially the same time as the induction heating,
To move the movable support plate 10 forward to move the laminated core 2
Is applied with a predetermined pressure (K105). Due to this pressure application, the adhesive 13 of each iron core 2 melted by induction heating is interposed between the adjacent iron cores 2 in a dense state, and in this state, the transistor inverter 6 is turned off (K106) and, for example, naturally cooled ( Or forced cooling with a cooling medium). As a result, the melted adhesive 13 is cured, and the adjacent iron cores 2 are bonded and fixed by the adhesive property, and at the same time, as shown in FIG.
As shown in (b), the rotor 14 in which the shaft 8 is firmly fitted and arranged in the shaft hole 2a in a shrink-fit state is obtained.

【0017】そして、シャフト圧入装置4のシャフト圧
入板11を後退させると共に、鉄心支持装置3の可動支
持板10を後退させることにより、回転子14が製造装
置1から取り外されてアンセット(K107)される。
これにより、回転子14が製造される。なお、この工程
において、鉄心支持装置3かシャフト圧入装置4に積層
鉄心2をシャフト8を中心に回転させる機能を付加し、
誘導加熱時に積層鉄心2を回転させて、加熱状態の均一
化を促進させることもできる。また、トランジスタイン
バータ6のオン・オフと、シャフト8の前進・後退や可
動支持板10の前進・後退は、略同時であっても良いし
所定の時間差を持って行うこともでき、その順序も上記
工程に限定されるものでもない。
The shaft press-fitting plate 11 of the shaft press-fitting device 4 is retracted and the movable support plate 10 of the iron core supporting device 3 is retracted, so that the rotor 14 is removed from the manufacturing device 1 and unset (K107). Is done.
Thereby, the rotor 14 is manufactured. In this step, a function of rotating the laminated core 2 around the shaft 8 is added to the core supporting device 3 or the shaft press-fitting device 4.
It is also possible to rotate the laminated core 2 during induction heating to promote uniform heating. The turning on / off of the transistor inverter 6 and the forward / backward movement of the shaft 8 and the forward / backward movement of the movable support plate 10 may be performed substantially simultaneously or with a predetermined time difference. It is not limited to the above steps.

【0018】このように上記実施例の回転子14の製造
方法においては、接着剤13が塗布された鉄心2を積層
させて、これに圧力を付与しつつ誘導加熱して積層接着
するため、各鉄心2の加熱状態を均一化することができ
て、強固に固着された積層鉄心2を得ることができる。
また、誘導加熱と略同時にシャフト8を積層鉄心2の軸
孔2aに圧入するため、シャフト8が軸孔2aに焼き嵌
めされた回転子14が得られて、該回転子14に安定し
た回転動作を得ることができる。これらのことから、品
質的に優れた回転子14を容易に製造することが可能に
なる。
As described above, in the method of manufacturing the rotor 14 according to the above embodiment, the iron cores 2 coated with the adhesive 13 are laminated, and the layers are bonded by induction heating while applying pressure thereto. The heating state of the iron core 2 can be made uniform, and the laminated iron core 2 firmly fixed can be obtained.
Further, since the shaft 8 is press-fitted into the shaft hole 2a of the laminated core 2 substantially simultaneously with the induction heating, the rotor 14 in which the shaft 8 is shrink-fitted into the shaft hole 2a is obtained. Can be obtained. From these facts, it becomes possible to easily manufacture the rotor 14 excellent in quality.

【0019】また、加熱手段として誘導加熱を利用する
ため、鉄心2の加熱時間を短縮することができると共
に、接着時間やシャフト圧入時間を短縮することができ
て、回転子14の製造時間の大幅な短縮化が可能とな
り、その製造コストの低減化を図ることができる。その
結果、この回転子14を、急速に普及しつつありかつコ
スト低減化が要求される携帯電話のバイブレータモータ
等に使用することにより大きな効果が期待できる。さら
に、加熱手段として従来のヒータやドライヤーに代えて
誘導加熱を利用しているため、安定した加熱が可能にな
って加熱バラツキの発生を押さえることができると共
に、作業環境の悪化防止や作業の安全性向上を図ること
が可能になる。
Further, since induction heating is used as the heating means, the heating time of the iron core 2 can be shortened, and the bonding time and the shaft press-fitting time can be shortened. It is possible to shorten the production time and reduce the production cost. As a result, a great effect can be expected by using the rotor 14 for a vibrator motor or the like of a mobile phone which is rapidly spreading and which requires cost reduction. Furthermore, since induction heating is used instead of a conventional heater or dryer as a heating means, stable heating is possible, and the occurrence of heating variations can be suppressed, and the work environment can be prevented from deteriorating and work safety can be reduced. It is possible to improve the performance.

【0020】図4及び図5は、回転子の他の製造方法を
示しており、この製造方法の特徴は、ガス置換しつつ誘
導加熱すると共に、回転子のカバーを樹脂で形成する点
にある。すなわち、図4に示すように、鉄心2とシャフ
ト8を図2の工程K102と同様にセット(K201)
した後に、積層鉄心2を覆うように設けたケース15
(図1参照)内にガス供給装置16からアルゴンガスや
窒素ガスを供給(K202)して、ケース15内をガス
置換して無酸素状態とする。
FIGS. 4 and 5 show another method of manufacturing the rotor. The features of this manufacturing method are that induction heating is performed while replacing the gas, and the rotor cover is formed of resin. . That is, as shown in FIG. 4, the iron core 2 and the shaft 8 are set in the same manner as in step K102 of FIG. 2 (K201).
Then, the case 15 provided so as to cover the laminated core 2
Argon gas or nitrogen gas is supplied from the gas supply device 16 into the inside (see FIG. 1) (K202), and the inside of the case 15 is gas-replaced to be in an oxygen-free state.

【0021】そして、この状態で、トランジスタインバ
ータ6をオン(K203)させると共に、樹脂噴射装置
17を作動させてケース15に設けた噴射ノズルから、
ケース15内の積層鉄心2に向けて熱硬化性の樹脂18
(図5参照)を噴射(K204)する。また、樹脂噴射
と略同時にシャフト8を前進させて軸孔2aに圧入(K
205)すると共に、鉄心2を押圧して圧力を付与(K
206)し、その後、トランジスタインバータ6をオフ
(K207)させる。
Then, in this state, the transistor inverter 6 is turned on (K203), and the resin injection device 17 is operated so that the injection nozzle provided in the case 15
A thermosetting resin 18 is applied to the laminated core 2 in the case 15.
(See FIG. 5) (K204). At approximately the same time as the resin injection, the shaft 8 is advanced and pressed into the shaft hole 2a (K
205) and presses the iron core 2 to apply pressure (K
206) Then, the transistor inverter 6 is turned off (K207).

【0022】これにより、誘導加熱と略同時に噴射され
る樹脂18により積層鉄心2の外面が、図5に示すよう
に樹脂カバーで覆われた回転子14が得られて、別部材
としてのカバーが不要になる。なお、この例の場合、噴
射させる樹脂18に単なるカバーの機能を持たせること
もできるが、例えば接着性を持たせることにより、前記
工程K101の鉄心2への接着剤13の塗布を省くこと
もできる。
As a result, the rotor 14 in which the outer surface of the laminated core 2 is covered with the resin cover as shown in FIG. 5 by the resin 18 injected substantially simultaneously with the induction heating is obtained. It becomes unnecessary. In this case, the resin 18 to be sprayed may have a mere cover function. However, for example, by applying adhesiveness, the application of the adhesive 13 to the iron core 2 in the step K101 may be omitted. it can.

【0023】この実施例においても、基本的に上記実施
例と略同様の作用効果が得られる他に、次のような作用
効果が得られる。すなわち、誘導加熱時に積層鉄心2の
雰囲気が無酸化状態とされるため、スケールの発生がな
くなり、各鉄心2の接着強度を十分に高めることができ
て、より高品質の回転子14を得ることができると共
に、鉄心2の接着とシャフト8の圧入及びカバー形成が
略同時に行われるため、カバー組み付け工程が不要とな
る等、回転子14の製造コストの一層の低減化を図るこ
とができる。
In this embodiment, basically, the following functions and effects can be obtained in addition to the functions and effects substantially similar to those of the above embodiment. That is, since the atmosphere of the laminated core 2 is made non-oxidized at the time of induction heating, scale is not generated, the adhesive strength of each core 2 can be sufficiently increased, and a higher quality rotor 14 can be obtained. In addition, since the bonding of the iron core 2, the press-fitting of the shaft 8, and the formation of the cover are performed substantially simultaneously, the cover assembling step becomes unnecessary, and the manufacturing cost of the rotor 14 can be further reduced.

【0024】なお、上記各実施例においては、複数枚の
鉄心2を横方向に積層させて接着したが、本発明はこれ
に限定されるものでもなく、鉄心2を縦方向に積層させ
た接着することもでき、この場合は、重力を圧力付与手
段の一部として使用することができる。また、上記実施
例においては、小型モータの回転子14を製造する場合
について説明したが、本発明は積層鉄心2を有する固定
子にも適用することができるし、上記各実施例における
鉄心2の積層枚数や鉄心2の形状、製造装置1の構成等
も一例であって、本発明に係わる各発明の要旨を逸脱し
ない範囲において適宜に変更することができる。
In each of the above embodiments, a plurality of iron cores 2 are laminated and bonded in the horizontal direction. However, the present invention is not limited to this. In this case, gravity can be used as a part of the pressure applying means. Further, in the above embodiment, the case where the rotor 14 of the small motor is manufactured has been described. However, the present invention can be applied to the stator having the laminated core 2, and the iron core 2 in each of the above embodiments can be applied. The number of layers, the shape of the iron core 2, the configuration of the manufacturing apparatus 1, and the like are also examples, and can be appropriately changed without departing from the gist of each invention according to the present invention.

【0025】[0025]

【発明の効果】以上詳述したように、請求項1記載の発
明によれば、鉄心の積層方向の少なくとも一方の面に接
着剤を介在させて複数枚の鉄心を積層させ、この積層状
態の鉄心を誘導加熱して各鉄心を積層固着するため、鉄
心の積層作業やシャフトの圧入作業を安全かつ容易に行
うことができて、製造コストの低減化を図ることができ
ると共に、各鉄心の均一かつ急速加熱が可能となって、
高品質で安定した性能を有する回転子等を容易に製造す
ることができる。
As described above in detail, according to the first aspect of the present invention, a plurality of iron cores are stacked with an adhesive interposed between at least one surface in the stacking direction of the iron cores. Since the cores are induction-heated and the cores are laminated and fixed, the lamination work of the cores and the press-fitting work of the shaft can be performed safely and easily, and the manufacturing cost can be reduced, and the uniformity of the cores can be improved. And rapid heating becomes possible,
A rotor or the like having high quality and stable performance can be easily manufactured.

【0026】また、請求項2記載の発明によれば、請求
項1記載の発明の効果に加え、接着剤が予め鉄心に一体
化されているため、鉄心の積層作業がより簡単となって
製造コストの一層の低減化を図ることができる。
According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, since the adhesive is preliminarily integrated with the iron core, the lamination work of the iron core becomes simpler and the manufacturing process becomes easier. The cost can be further reduced.

【0027】また、請求項3記載の発明によれば、請求
項1または2記載の発明の効果に加え、シャフトが誘導
加熱状態の積層鉄心の軸孔に圧入されるため、均一加熱
状態の軸孔へのシャフトの圧入作業が容易に行えると共
に、焼き嵌め状態の安定した圧入状態が得られて回転ム
ラ等のないより高品質の回転子等を容易に製造すること
ができる。
According to the third aspect of the invention, in addition to the effects of the first or second aspect, the shaft is press-fitted into the shaft hole of the laminated core in the induction heating state, so that the shaft in the uniform heating state is provided. The press-fitting operation of the shaft into the hole can be easily performed, and a stable press-fitting state in a shrink-fit state can be obtained, so that a higher-quality rotor or the like having no uneven rotation can be easily manufactured.

【0028】また、請求項4記載の発明によれば、請求
項1ないし3記載の発明の効果に加え、接着剤が熱硬化
性樹脂で形成されるかあるいは熱硬化性樹脂を塗布する
ことにより、該樹脂が回転子のカバーとして機能するた
め、回転子等を覆うカバーを別途設ける必要がなくなっ
て、構成の簡略化と製造コストのより一層の低減化を図
ることができる。
According to the fourth aspect of the invention, in addition to the effects of the first to third aspects, the adhesive is formed of a thermosetting resin or the adhesive is formed by applying a thermosetting resin. Since the resin functions as a cover for the rotor, it is not necessary to separately provide a cover for covering the rotor and the like, so that the configuration can be simplified and the manufacturing cost can be further reduced.

【0029】また、請求項5記載の発明によれば、鉄心
支持手段で複数枚の鉄心を接着剤を介して圧力付与状態
で支持し、これをトランジスタインバータからの加熱コ
イルへの高周波電流の供給で誘導加熱しつつ、シャフト
圧入手段で鉄心の軸孔にシャフトを圧入するため、鉄心
の積層作業やシャフトの圧入作業を安全かつ容易に行う
ことができて、製造コストの低減化を図ることができる
と共に、各鉄心の均一かつ急速加熱が可能となって、高
品質で安定した性能を有する回転子等を容易に得ること
ができる。
According to the fifth aspect of the present invention, a plurality of iron cores are supported by the iron core supporting means via an adhesive in a pressure-applied state, and this is supplied from the transistor inverter to the heating coil from the transistor inverter. The shaft is press-fitted into the shaft hole of the iron core by means of the shaft press-fitting means while induction heating is performed, so that the lamination work of the iron core and the press-fitting work of the shaft can be performed safely and easily, and the production cost can be reduced. In addition to this, uniform and rapid heating of each iron core becomes possible, and a rotor or the like having high quality and stable performance can be easily obtained.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係わる小型モータの製造装置の一実施
例を示す構成図
FIG. 1 is a configuration diagram showing one embodiment of a small motor manufacturing apparatus according to the present invention.

【図2】同その製造方法の一例を示す工程図FIG. 2 is a process chart showing an example of the manufacturing method.

【図3】同その説明図FIG. 3 is an explanatory view of the same.

【図4】同他の製造方法を示す工程図FIG. 4 is a process chart showing another manufacturing method.

【図5】同その説明図FIG. 5 is an explanatory view of the same.

【符号の説明】[Explanation of symbols]

1 製造装置 2 鉄心 2a 軸孔 3 鉄心支持装置 4 シャフト圧入装置 5 加熱コイル 6 トランジスタインバータ 7 制御装置 8 シャフト 9 固定支持板 10 可動支持板 11 シャフト圧入板 12 水冷ケーブル 13 接着剤 14 回転子 15 ケース 16 ガス供給装置 17 樹脂噴射装置 18 樹脂 DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus 2 Iron core 2a Shaft hole 3 Iron core support device 4 Shaft press-fitting device 5 Heating coil 6 Transistor inverter 7 Control device 8 Shaft 9 Fixed support plate 10 Movable support plate 11 Shaft press-fit plate 12 Water-cooled cable 13 Adhesive 14 Rotor 15 Case 16 Gas supply device 17 Resin injection device 18 Resin

───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 英司 静岡県磐田市匂坂中1600−9 株式会社ミ ヤデン内 Fターム(参考) 5H615 AA01 BB01 BB15 PP02 PP06 PP24 SS05 SS18 SS24 TT31 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Eiji Suzuki 1600-9, Sakasaka, Iwata-shi, Shizuoka F-term in Miyaden Co., Ltd. (Reference) 5H615 AA01 BB01 BB15 PP02 PP06 PP24 SS05 SS18 SS24 TT31

Claims (5)

    【特許請求の範囲】[Claims]
  1. 【請求項1】複数枚の鉄心がその軸孔にシャフトを貫通
    状態で積層固着することにより回転子等が形成される小
    型モータの製造方法であって、 前記鉄心の積層方向の少なくとも一方の面に接着剤を介
    在させて複数枚の鉄心を積層させ、この積層状態の鉄心
    を誘導加熱して各鉄心を積層固着することを特徴とする
    小型モータの製造方法。
    1. A method for manufacturing a small motor in which a rotor or the like is formed by laminating and fixing a plurality of iron cores in a shaft hole of a shaft in a penetrating state, at least one surface of the iron cores in a laminating direction. A method of manufacturing a small motor, comprising: laminating a plurality of iron cores with an adhesive interposed therebetween, and inductively heating the iron cores in a stacked state to stack and fix the respective iron cores.
  2. 【請求項2】前記接着剤は、予め鉄心に一体化されてい
    ることを特徴とする請求項1記載の小型モータの製造方
    法。
    2. The method for manufacturing a small motor according to claim 1, wherein said adhesive is previously integrated with an iron core.
  3. 【請求項3】前記シャフトは、誘導加熱状態の積層鉄心
    の軸孔に圧入されることを特徴とする請求項1または2
    記載の小型モータの製造方法。
    3. The shaft according to claim 1, wherein the shaft is press-fitted into a shaft hole of a laminated core in an induction heating state.
    A manufacturing method of the small motor according to the above.
  4. 【請求項4】前記接着剤が熱硬化性樹脂で形成されるか
    あるいは熱硬化性樹脂を塗布することにより、該樹脂が
    カバーとして機能することを特徴とする請求項1ないし
    3のいずれかに記載の小型モータの製造方法。
    4. The method according to claim 1, wherein the adhesive is formed of a thermosetting resin, or the resin functions as a cover by applying the thermosetting resin. A manufacturing method of the small motor according to the above.
  5. 【請求項5】複数枚の鉄心がその軸孔にシャフトを貫通
    状態で積層固着することにより回転子等が形成される小
    型モータの製造装置であって、 接着剤を介して積層された複数枚の積層鉄心を圧力付与
    状態で支持する鉄心支持手段と、該鉄心支持手段で支持
    された積層鉄心の軸孔にシャフトを圧入するシャフト圧
    入手段と、前記積層鉄心の周囲に配置された加熱コイル
    と、該加熱コイルに高周波電流を供給して積層鉄心を誘
    導加熱するトランジスタインバータと、を備えたことを
    特徴とする小型モータの製造装置。
    5. An apparatus for manufacturing a small motor in which a rotor or the like is formed by laminating and fixing a plurality of iron cores in a shaft hole thereof with a shaft penetrating therethrough, wherein the plurality of iron cores are laminated via an adhesive. Core supporting means for supporting the laminated iron core in a pressure applied state, shaft press-fitting means for press-fitting a shaft into a shaft hole of the laminated core supported by the core supporting means, and a heating coil disposed around the laminated iron core. And a transistor inverter that supplies a high-frequency current to the heating coil to inductively heat the laminated core.
JP2001140937A 2001-05-11 2001-05-11 Small motor manufacturing equipment Active JP4756566B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016167397A (en) * 2015-03-10 2016-09-15 株式会社ミヤデン Induction heating device and induction heating method for rotary component

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579235A (en) * 1980-06-18 1982-01-18 Hitachi Ltd Cylindrical rotor for rotary electric machine
JPS61285044A (en) * 1985-05-30 1986-12-15 Applied Plast Co Inc Formation of laminated core assembly
JP2000152570A (en) * 1998-11-06 2000-05-30 Toshiba Corp Manufacture of magnet core
JP2000311780A (en) * 1999-04-28 2000-11-07 Hitachi Chem Co Ltd Heating method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579235A (en) * 1980-06-18 1982-01-18 Hitachi Ltd Cylindrical rotor for rotary electric machine
JPS61285044A (en) * 1985-05-30 1986-12-15 Applied Plast Co Inc Formation of laminated core assembly
JP2000152570A (en) * 1998-11-06 2000-05-30 Toshiba Corp Manufacture of magnet core
JP2000311780A (en) * 1999-04-28 2000-11-07 Hitachi Chem Co Ltd Heating method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016167397A (en) * 2015-03-10 2016-09-15 株式会社ミヤデン Induction heating device and induction heating method for rotary component

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