JP2001178089A - Rotor core and manufacturing method therefor, and equipment - Google Patents
Rotor core and manufacturing method therefor, and equipmentInfo
- Publication number
- JP2001178089A JP2001178089A JP35552499A JP35552499A JP2001178089A JP 2001178089 A JP2001178089 A JP 2001178089A JP 35552499 A JP35552499 A JP 35552499A JP 35552499 A JP35552499 A JP 35552499A JP 2001178089 A JP2001178089 A JP 2001178089A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- shaped magnetic
- magnetic member
- rotor core
- magnetic members
- 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
Links
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
(57)【要約】
【課題】 パテの貼着等を施すことなく容易にバランス
の調整が可能な回転子鉄心を得る。
【解決手段】 圧延方向に延在する帯状磁性部材を圧延
方向に順次打ち抜き加工することにより円形状に形成さ
れる多数の板状磁性部材１を積層して一体化された回転
子鉄心３において、板状磁性部材１のうち所定の枚数の
第２の板状磁性部材２にはその中心から圧延方向とほぼ
直角の位置で且つ板厚の大きい側の部位に所定の大きさ
を有するバランス用穴２ｃを形成する。
(57) [Problem] To provide a rotor core whose balance can be easily adjusted without applying putty or the like. SOLUTION: In a rotor core 3 integrated by laminating a large number of plate-shaped magnetic members 1 formed in a circular shape by sequentially punching a band-shaped magnetic member extending in a rolling direction in a rolling direction, A predetermined number of second plate-like magnetic members 2 of the plate-like magnetic members 1 are provided with a balance hole having a predetermined size at a position substantially perpendicular to the rolling direction from the center thereof and at a portion on the side where the plate thickness is large. 2c is formed.
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、圧延方向に延在
する帯状磁性部材を圧延方向に順次打ち抜き加工し、円
形状に形成される多数の板状磁性部材を積層して一体化
される回転子鉄心並びにその製造方法および製造装置に
係り、特にバランス調整の容易化に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating magnetic member which is formed by sequentially punching a strip-shaped magnetic member extending in a rolling direction in a rolling direction and laminating and integrating a large number of circular plate-shaped magnetic members. The present invention relates to a core and a method and an apparatus for manufacturing the same, and more particularly to facilitating balance adjustment.
【０００２】[0002]
【従来の技術】この種の従来の回転子鉄心は、例えば特
開平９−１６３６４４号公報に示されるように、板面に
バランス用穴が周方向に複数個形成された板状磁性部材
を、積層される板状磁性部材の積層方向両端部に配置す
るとともに、このバランス用穴にパテを貼着することに
より、ウェイトの不足分を補いバランスの調整を行うよ
うにしている。2. Description of the Related Art A conventional rotor iron core of this type includes a plate-like magnetic member having a plurality of balancing holes formed in a plate surface in a circumferential direction, as shown in, for example, Japanese Patent Application Laid-Open No. 9-163644. The plate-like magnetic members to be laminated are arranged at both ends in the laminating direction, and putty is stuck to the balance holes to compensate for the shortage of the weight and adjust the balance.
【０００３】[0003]
【発明が解決しようとする課題】従来の回転子鉄心は以
上のように、積層される板状磁性部材の積層方向両端部
に、板面にバランス用穴が周方向に複数個形成された板
状磁性部材を配置し、このバランス用穴にパテを貼着す
ることにより、ウェイトの不足分を補ってバランスの調
整を行うようにしているので、バランシングマシンに回
転子鉄心を取り付け、このバランシングマシンを動作さ
せてアンバランスの量と位置を検出しながらパテを貼着
しなければならず、調整に手間がかかるという問題点が
あった。As described above, the conventional rotor core has a plurality of balancing holes formed in the circumferential direction on the plate surface at both ends in the stacking direction of the stacked plate-shaped magnetic members. The balance magnetic member is arranged and putty is stuck to this balance hole to compensate for the lack of weight and adjust the balance. Therefore, the rotor core is attached to the balancing machine, and this balancing machine is mounted. , The putty must be adhered while detecting the amount and position of the unbalance, and there is a problem that the adjustment is troublesome.
【０００４】この発明は上記のような問題点を解消する
ためになされたもので、パテの貼着等を施すことなく容
易にバランスの調整が可能な回転子鉄心並びにその製造
方法および製造装置を提供することを目的とするもので
ある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and provides a rotor iron core capable of easily adjusting the balance without applying putty or the like, and a method and apparatus for manufacturing the same. It is intended to provide.
【０００５】[0005]
【課題を解決するための手段】この発明の請求項１に係
る回転子鉄心は、圧延方向に延在する帯状磁性部材を圧
延方向に順次打ち抜き加工することにより円形状に形成
される多数の板状磁性部材を積層して一体化された回転
子鉄心において、板状磁性部材のうち所定の枚数のもの
にはその中心から圧延方向とほぼ直角の位置で且つ板厚
の大きい側の部位に所定の大きさを有するバランス用穴
を形成するようにしたものである。According to a first aspect of the present invention, there is provided a rotor core comprising a plurality of plates formed in a circular shape by sequentially punching a strip-shaped magnetic member extending in a rolling direction in a rolling direction. Of a predetermined number of plate-shaped magnetic members at a position substantially perpendicular to the rolling direction from the center thereof and at a portion on the side where the plate thickness is large. In this case, a balance hole having a size of is formed.
【０００６】又、この発明の請求項２に係る回転子鉄心
は、請求項１において、バランス用穴が形成された板状
磁性部材は所定の間隔を介して配置するようにしたもの
である。[0006] A rotor core according to a second aspect of the present invention is the rotor core according to the first aspect, wherein the plate-shaped magnetic members having the balance holes are arranged at predetermined intervals.
【０００７】又、この発明の請求項３に係る回転子鉄心
は、請求項１において、バランス用穴が形成された板状
磁性部材は積層方向両端部に半数ずつ配置するようにし
たものである。According to a third aspect of the present invention, there is provided a rotor core according to the first aspect, wherein the plate-like magnetic members having the balance holes are arranged by half at both ends in the stacking direction. .
【０００８】又、この発明の請求項４に係る回転子鉄心
の製造方法は、圧延方向に延在する帯状磁性部材の幅方
向両端部の板厚差から重量のアンバランス量を演算する
工程と、中心から圧延方向とほぼ直角の位置で且つ板厚
の大きい側に形成されるバランス用穴の位置と大きさを
設定してアンバランス量を相殺するに必要な枚数を演算
する工程と、帯状磁性部材から打ち抜き加工をすること
により順次円形状の板状磁性部材を形成するとともに板
状磁性部材のうち枚数のものにバランス用穴を形成する
工程と、バランス用穴が形成された板状磁性部材を所定
の位置に配置し板状磁性部材を順次積層して一体化する
工程とを包含したものである。The method for manufacturing a rotor core according to a fourth aspect of the present invention includes a step of calculating an unbalance amount of weight from a difference in thickness between both ends in the width direction of the strip-shaped magnetic member extending in the rolling direction. Calculating the number of sheets required to offset the unbalance amount by setting the position and size of the balancing holes formed at a position substantially perpendicular to the rolling direction from the center and on the side with the larger thickness, A step of forming a circular plate-shaped magnetic member sequentially by punching from a magnetic member and forming a balance hole in a number of the plate-shaped magnetic members, and a plate-shaped magnet having a balance hole formed therein. Arranging the members at predetermined positions, sequentially laminating the plate-shaped magnetic members, and integrating them.
【０００９】又、この発明の請求項５に係る回転子鉄心
の製造装置は、圧延方向に延在する帯状磁性部材の幅方
向両端部の板厚をそれぞれ検出する手段と、検出された
両板厚の差から重量のアンバランス量を演算するととも
に中心から圧延方向とほぼ直角の位置で且つ板厚の大き
い側に形成されるバランス用穴の位置と大きさを設定し
てアンバランス量を相殺するに必要な枚数を演算する手
段と、帯状磁性部材から打ち抜き加工をすることにより
順次円形状の板状磁性部材を形成するとともに板状磁性
部材のうち枚数のものにバランス用穴を形成する手段
と、バランス用穴が形成された板状磁性部材を所定の位
置に配置し板状磁性部材を順次積層して一体化する手段
とを備えたものである。According to a fifth aspect of the present invention, there is provided an apparatus for manufacturing a rotor core, comprising: means for detecting thicknesses of both end portions in a width direction of a strip-shaped magnetic member extending in a rolling direction; Calculate the weight imbalance amount from the thickness difference and set the position and size of the balance hole formed at a position almost perpendicular to the rolling direction from the center and on the side with the larger thickness to offset the imbalance amount. Means for calculating the number of sheets required to perform the processing, and means for forming a circular plate-shaped magnetic member sequentially by punching from a band-shaped magnetic member and forming a balance hole in a number of the plate-shaped magnetic members. And means for arranging the plate-like magnetic members having the balance holes at predetermined positions and sequentially stacking and integrating the plate-like magnetic members.
【００１０】又、この発明の請求項６に係る回転子鉄心
の製造装置は、アンバランス量を相殺するに必要な枚数
は予め演算して記憶させるようにしたものである。In the rotor core manufacturing apparatus according to a sixth aspect of the present invention, the number of sheets required to cancel the unbalance amount is calculated and stored in advance.
【００１１】[0011]
【発明の実施の形態】実施の形態１．以下、この発明の
実施の形態を図に基づいて説明する。図１はこの発明の
実施の形態１における回転子鉄心の構成を示し、（Ａ）
は正面図、（Ｂ）は（Ａ）における線Ｂ−Ｂに沿う断面
図、図２は図１における回転子鉄心が適用された回転子
の構成を示し、（Ａ）は正面図、（Ｂ）は（Ａ）におけ
る線Ｂ−Ｂに沿う断面図、図３は図１における回転子鉄
心を製造するための装置の構成を示す斜視図、図４は図
３における回転子の製造装置において帯状磁性部材から
板状磁性部材を形成する工程を示す平面図、図５は図４
における帯状磁性部材および板状磁性部材の寸法関係を
示し、（Ａ）は平面図、（Ｂ）は（Ａ）における線Ｂ−
Ｂに沿った断面図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration of a rotor core according to Embodiment 1 of the present invention, and FIG.
Is a front view, (B) is a cross-sectional view taken along line BB in (A), FIG. 2 shows a configuration of a rotor to which the rotor core in FIG. 1 is applied, (A) is a front view, and (B) is a front view. ) Is a cross-sectional view along line BB in (A), FIG. 3 is a perspective view showing a configuration of an apparatus for manufacturing the rotor core in FIG. 1, and FIG. 4 is a belt-shaped apparatus in the rotor manufacturing apparatus in FIG. FIG. 5 is a plan view showing a step of forming a plate-shaped magnetic member from a magnetic member.
5A and 5B show the dimensional relationship between the band-shaped magnetic member and the plate-shaped magnetic member in (A), and FIG.
It is sectional drawing along B.
【００１２】図１および図２において、１は周方向に所
定の間隔を介して配置される矩形状の磁石用穴１ａおよ
び中心部に配置される軸用穴１ｂがそれぞれ形成された
円形状の第１の板状磁性部材、２はこの第１の板状磁性
部材１と同様に、周方向に所定の間隔を介して配置され
る矩形状の磁石用穴２ａおよび中心部に配置される軸用
穴２ｂと、中心から圧延方向とほぼ直角の位置で、且つ
板厚の大きい側の部位に所定の径を有して配置されるバ
ランス用穴２ｃとがそれぞれ形成された円形状の第２の
板状磁性部材である。In FIGS. 1 and 2, reference numeral 1 denotes a circular shape having a rectangular magnet hole 1a disposed at a predetermined interval in the circumferential direction and a shaft hole 1b disposed at the center thereof. Similar to the first plate-shaped magnetic member 1, the first plate-shaped magnetic member 2 has a rectangular magnet hole 2a arranged at a predetermined interval in the circumferential direction and a shaft arranged at the center. Circular second holes 2b each having a hole 2b and a balancing hole 2c arranged at a position substantially perpendicular to the rolling direction from the center and having a predetermined diameter at a portion on the side of a large thickness. Is a plate-shaped magnetic member.
【００１３】そして、これら第１および第２の板状磁性
部材１、２は、図１（Ｂ）に示すように第２の板状磁性
部材２を所定の枚数だけ所定の位置に配置させて積層
し、各穴１ａ、２ａおよび１ｂ、２ｂをそれぞれ一致さ
せた後、例えば抜きかしめ等で固着一体化することによ
り回転子鉄心３が構成される。４は両磁石用穴１ａ、２
ａに嵌挿され例えば鉄粉等の磁性粉体が混入された熱可
塑性樹脂で固着された永久磁石、５は両軸用穴１ｂ、２
ｂに嵌合された回転子軸であり、これら１ないし５で回
転子６が構成される。The first and second plate-like magnetic members 1 and 2 are formed by disposing a predetermined number of second plate-like magnetic members 2 at predetermined positions as shown in FIG. 1B. After laminating and aligning the holes 1a, 2a and 1b, 2b, respectively, the rotor core 3 is formed by fixing and integrating, for example, by caulking. 4 is both magnet holes 1a, 2
a permanent magnet fixed to a thermoplastic resin mixed with a magnetic powder such as iron powder, for example, is inserted into a hole a for both shafts 1b, 2
The rotor shaft is fitted to the rotor shaft b.
【００１４】次に、上記のように構成される回転子鉄心
の製造方法を図３ないし図５に基づいて説明する。一般
に、圧延方向に圧延する帯状板部材は、圧延ローラの構
成上圧延方向とほぼ直角の方向、すなわち幅方向に板厚
差が生じている。そこで、まず帯状磁性部材７を巻枠８
から取り出し、帯状磁性部材７の両側部に配置される両
板厚検出センサ９、１０により、帯状磁性部材７の両側
部の板厚をそれぞれ検出する。Next, a method of manufacturing the rotor core configured as described above will be described with reference to FIGS. In general, a strip-shaped plate member that is rolled in the rolling direction has a thickness difference in a direction substantially perpendicular to the rolling direction, that is, in the width direction due to the configuration of the rolling roller. Therefore, first, the band-shaped magnetic member 7 is
Then, the sheet thicknesses on both sides of the band-shaped magnetic member 7 are detected by the sheet thickness detection sensors 9 and 10 arranged on both sides of the band-shaped magnetic member 7.
【００１５】次いで、演算部１１において、両板厚検出
センサ９、１０によって検出された板厚の差から、重量
のアンバランス量が演算されるとともに、圧延方向とほ
ぼ直角の位置で且つ板厚の大きい側に形成されるバラン
ス用穴２ｃを、所定の位置と大きさに設定したとして、
演算されたアンバランス量を相殺するに必要な枚数が演
算される。今、図５に示すように第２の板状磁性部材２
に磁石用穴２ａが無いと仮定し、 Ｒ：第２の板状磁性部材２の外周の半径（ｍｍ） ｒ：軸用穴２ｂの半径（ｍｍ） ａ：バランス用穴２ｃの半径（ｍｍ） ｌ：第２の板状磁性部材２の中心からバランス用穴２ｃ
までの距離（ｍｍ） ｔ1：第２の板状磁性部材２の板厚の最小値（ｍｍ） ｔ2：第２の板状磁性部材２の板厚の最大値（ｍｍ） とした場合の回転子鉄心３の総積層枚数Ｎ（第１および
第２の板状磁性部材１、２の合計枚数）と、バランス用
穴２ｃを有する第２の板状磁性部材２の枚数ｎとの関係
は次式で表される。 ｎ/Ｎ＝(Ｒ4−ｒ4)・(ｔ2−ｔ1)/[４ａ2・ｌ・{ｌ(ｔ2−ｔ
1)＋Ｒ(ｔ2＋ｔ1)}] そして、例えばＲ＝５０、ｒ＝１０、ａ＝５、ｌ＝２
５、Ｎ＝２００として上記式に代入すると、ｔ2＝０．
５０５、ｔ1＝０．５の場合はＫ＝４９．５５で約５０
枚、また、ｔ2＝０．５０１、ｔ1＝０．５の場合はＫ＝
９．９６で約１０枚というように演算される。Next, the arithmetic unit 11 calculates the unbalance amount of the weight from the difference between the sheet thicknesses detected by the two sheet thickness detecting sensors 9 and 10, and calculates the unbalance amount at a position substantially perpendicular to the rolling direction. Assuming that the balance hole 2c formed on the side with the larger is set to a predetermined position and size,
The number of sheets required to offset the calculated amount of imbalance is calculated. Now, as shown in FIG.
R: radius of the outer circumference of the second plate-shaped magnetic member 2 (mm) r: radius of the shaft hole 2b (mm) a: radius of the balance hole 2c (mm) l: balance hole 2c from the center of second plate-shaped magnetic member 2
Distance (mm) t 1 : minimum value (mm) of the plate thickness of the second plate-shaped magnetic member 2 t 2 : maximum value (mm) of the plate thickness of the second plate-shaped magnetic member 2 The relation between the total number N of the rotor cores 3 (the total number of the first and second plate-shaped magnetic members 1 and 2) and the number n of the second plate-shaped magnetic members 2 having the balance holes 2c is as follows. It is expressed by the following equation. n / N = (R 4 −r 4 ) · (t 2 −t 1 ) / [4a 2 · l · {l (t 2 −t
1 ) + R (t 2 + t 1 )}] and, for example, R = 50, r = 10, a = 5, l = 2
5, N = 200, and the values are substituted into the above equation, t 2 = 0.
505, when t 1 = 0.5, K = 49.55 and about 50
Sheets, and when t 2 = 0.501 and t 1 = 0.5, K =
It is calculated to be about 10. at 9.96.
【００１６】このようにしてバランス用穴２ｃを有する
第２の板状磁性部材２の必要枚数ｎが演算されると、演
算部１１からＲ、ｒ、ａ、ｌ、Ｎ、ｎの各値およびｎを
どのように積層配置するかの指示が金型１２に送出され
る。そして、金型１２では上型１２ａおよび下型１２ｂ
が協働することにより、図４に示すように矢印Ａで示す
位置において、ハッチングで示す部分をプレス打ち抜き
し、第１の板状磁性部材１の場合は磁石用穴１ａおよび
軸用穴１ｂが、また、第２の板状磁性部材２の場合は磁
石用穴２ａおよび軸用穴２ｂがそれぞれ形成される。When the required number n of the second plate-like magnetic members 2 having the balance holes 2c is calculated in this manner, the calculation unit 11 calculates the values of R, r, a, l, N, n and An instruction on how to arrange n is sent to the mold 12. In the mold 12, the upper mold 12a and the lower mold 12b
Cooperate to press-punch a portion indicated by hatching at a position indicated by an arrow A as shown in FIG. 4. In the case of the first plate-shaped magnetic member 1, the magnet hole 1 a and the shaft hole 1 b are In the case of the second plate-shaped magnetic member 2, a hole 2a for a magnet and a hole 2b for a shaft are formed.
【００１７】次いで、矢印Ｂで示す位置において、第２
の板状磁性部材２に相当する場合は、ハッチングで示す
部分をプレス打ち抜きしてバランス用穴２ｃが形成さ
れ、また、板厚の大きい側が幅方向に逆の場合は、矢印
Ｃで示す位置において、ハッチングで示す部分をプレス
打ち抜きして同様のバランス用穴２ｃが形成される。そ
して最後に、矢印Ｄで示す位置において、ハッチングで
示す部分をプレス打ち抜きすることにより、それぞれ第
１および第２の板状磁性部材１、２が形成され、演算部
１１の指示に基づいて積層配置された後、抜きかしめに
より固着一体化されて回転子鉄心３が完成し、コンベア
１３を介して順次搬出される。Next, at the position shown by the arrow B, the second
In the case of the plate-shaped magnetic member 2, the hole shown by hatching is press-punched to form a balance hole 2c. In the case where the thicker side is reversed in the width direction, at the position indicated by arrow C A similar hole 2c is formed by press-punching a portion indicated by hatching. Finally, at the position indicated by arrow D, the first and second plate-shaped magnetic members 1 and 2 are formed by press punching the portions indicated by hatching, respectively, and are stacked and arranged based on the instruction of the arithmetic unit 11. After that, the rotor core 3 is fixed and integrated by crimping to complete the rotor core 3, and is sequentially carried out via the conveyor 13.
【００１８】このように上記実施の形態１によれば、圧
延方向に延在する帯状磁性部材７の幅方向両端部の板厚
を、両板厚検出センサ９、１０によってそれぞれ検出
し、両板厚の差から演算部１１において重量のアンバラ
ンス量が演算されるとともに、中心から圧延方向とほぼ
垂直の位置で且つ板厚の大きい側に形成されるバランス
用穴２ｃの位置と大きさを設定して、アンバランスを相
殺するに必要な枚数を演算し、この枚数だけバランス用
穴２ｃを有する第２の板状磁性部材２を形成して、所定
の位置に配置して第１の板状磁性部材１と共に積層する
ようにしているので、パテの貼着等を施すことなくバラ
ンスの調整が可能となり、また、図１に示すように第２
の板状磁性部材２を所定の間隔で配置するようにすれ
ば、演算部１１における第２の板状磁性部材２の配置の
判断が簡易化され、バランスの調整はさらに容易とな
る。As described above, according to the first embodiment, the sheet thicknesses at both ends in the width direction of the strip-shaped magnetic member 7 extending in the rolling direction are detected by the sheet thickness detecting sensors 9 and 10, respectively. The arithmetic unit 11 calculates the unbalance amount of the weight from the difference in thickness, and sets the position and size of the balance hole 2c formed at a position substantially perpendicular to the rolling direction from the center and on the side with the larger thickness. Then, the number of sheets necessary for canceling the imbalance is calculated, and the second plate-shaped magnetic member 2 having the number of the balance holes 2c is formed by this number, and is arranged at a predetermined position to form the first plate-shaped magnetic member 2. Since the magnetic member 1 and the magnetic member 1 are laminated, the balance can be adjusted without applying putty or the like, and as shown in FIG.
If the plate-shaped magnetic members 2 are arranged at predetermined intervals, the determination of the arrangement of the second plate-shaped magnetic members 2 in the calculation unit 11 is simplified, and the adjustment of the balance is further facilitated.
【００１９】なお、上記における演算部１１では、条件
に応じてその都度第２の板状磁性部材２の必要枚数を演
算するようにしているが、想定される条件における必要
枚数を予め演算して記憶しておき、必要に応じてその枚
数を抽出するようにしても良く、上記と同様の効果を発
揮し得ることは言うまでもない。The arithmetic unit 11 calculates the required number of the second plate-shaped magnetic members 2 each time according to the conditions. However, the required number of sheets under the assumed conditions is calculated in advance. It may be stored, and the number may be extracted as needed, and it goes without saying that the same effect as described above can be obtained.
【００２０】実施の形態２．図６はこの発明の実施の形
態２における回転子鉄心が適用された回転子の構成を示
し、（Ａ）は正面図、（Ｂ）は（Ａ）における線Ｂ−Ｂ
に沿う断面図である。図において、上記実施の形態１に
おけると同様な部分は同一符号を付して説明を省略す
る。１４は第１および第２の板状磁性部材１、２を、第
２の板状磁性部材２の所定の枚数の半数ずつが両端とな
るように配置させて積層し、例えば抜きかしめ等で一体
化することにより構成される回転子鉄心で、永久磁石４
および回転子軸５と組み合わせられて回転子１５が構成
されている。Embodiment 2 6 shows a configuration of a rotor to which a rotor core according to Embodiment 2 of the present invention is applied, (A) is a front view, and (B) is a line BB in (A).
FIG. In the figure, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Reference numeral 14 denotes a stack in which the first and second plate-shaped magnetic members 1 and 2 are arranged such that half of a predetermined number of the second plate-shaped magnetic members 2 are at both ends, and are integrated by, for example, swaging. The rotor core is composed of
The rotor 15 is configured in combination with the rotor shaft 5.
【００２１】このように上記実施の形態２によれば、上
記実施の形態１におけると同様に、バランス用穴２ｃを
有する第２の板状磁性部材２を、アンバランスを相殺す
るに必要な枚数だけ第１の板状磁性部材１と共に積層す
るようにしているので、パテの貼着等を施すことなくバ
ランスの調整が可能となり、又、第２の板状磁性部材２
を半数ずつ積層方向両端部に配置するようにしているの
で、バランスの調整はさらに容易となる。As described above, according to the second embodiment, similarly to the first embodiment, the second plate-shaped magnetic member 2 having the balance hole 2c is formed by the number of sheets necessary to cancel the imbalance. Only the first plate-shaped magnetic member 1 is laminated, so that the balance can be adjusted without applying putty or the like, and the second plate-shaped magnetic member 2 can be adjusted.
Are arranged at both ends in the stacking direction by half, so that the balance can be easily adjusted.
【００２２】[0022]
【発明の効果】以上のように、この発明の請求項１によ
れば、圧延方向に延在する帯状磁性部材を圧延方向に順
次打ち抜き加工することにより円形状に形成される多数
の板状磁性部材を積層して一体化された回転子鉄心にお
いて、板状磁性部材のうち所定の枚数のものにはその中
心から圧延方向とほぼ直角の位置で且つ板厚の大きい側
の部位に所定の大きさを有するバランス用穴を形成する
ようにしたので、パテの貼着等を施すことなく容易にバ
ランスの調整が可能な回転子鉄心を提供することができ
る。As described above, according to the first aspect of the present invention, a large number of plate-like magnetic members formed in a circular shape by sequentially punching in the rolling direction a strip-shaped magnetic member extending in the rolling direction. In the rotor core in which the members are stacked and integrated, a predetermined number of plate-shaped magnetic members are provided with a predetermined size at a position substantially perpendicular to the rolling direction from the center thereof and at a portion on the side where the plate thickness is large. Since the balance hole having the thickness is formed, it is possible to provide a rotor core whose balance can be easily adjusted without putting putty or the like.
【００２３】又、この発明の請求項２によれば、請求項
１において、バランス用穴が形成された板状磁性部材は
所定の間隔を介して配置するようにしたので、パテの貼
着等を施すことなくさらに容易にバランスの調整が可能
な回転子鉄心を提供することができる。According to a second aspect of the present invention, in the first aspect, the plate-shaped magnetic members having the balance holes are arranged at predetermined intervals, so that the putty can be adhered. Thus, it is possible to provide a rotor iron core that can more easily adjust the balance without applying the heat treatment.
【００２４】又、この発明の請求項３によれば、請求項
１において、バランス用穴が形成された板状磁性部材は
積層方向両端部に半数ずつ配置するようにしたので、パ
テの貼着等を施すことなく容易にバランスの調整が可能
な回転子鉄心を提供することができる。According to a third aspect of the present invention, in the first aspect, the plate-like magnetic members having the balance holes formed are arranged at both ends in the stacking direction by half, so that the putty is stuck. It is possible to provide a rotor core whose balance can be easily adjusted without performing the above operations.
【００２５】又、この発明の請求項４によれば、圧延方
向に延在する帯状磁性部材の幅方向両端部の板厚差から
重量のアンバランス量を演算する工程と、中心から圧延
方向とほぼ直角の位置で且つ板厚の大きい側に形成され
るバランス用穴の位置と大きさを設定してアンバランス
量を相殺するに必要な枚数を演算する工程と、帯状磁性
部材から打ち抜き加工をすることにより順次円形状の板
状磁性部材を形成するとともに板状磁性部材のうち枚数
のものにバランス用穴を形成する工程と、バランス用穴
が形成された板状磁性部材を所定の位置に配置し板状磁
性部材を順次積層して一体化する工程とを包含したの
で、パテの貼着等を施すことなく容易にバランスの調整
が可能な回転子鉄心の製造方法を提供することができ
る。According to a fourth aspect of the present invention, there is provided a step of calculating an unbalance amount of weight from a thickness difference between both ends in a width direction of a strip-shaped magnetic member extending in a rolling direction; A step of setting the position and size of a balancing hole formed at a substantially right angle position and on the side with a large thickness to calculate the number of sheets required to offset the amount of unbalance, and punching from the band-shaped magnetic member. A step of forming a circular plate-like magnetic member in order by forming a balance hole in a number of plate-like magnetic members, and placing the plate-like magnetic member having the balance hole in a predetermined position. Since the method includes the steps of arranging and laminating the plate-shaped magnetic members sequentially and integrating them, it is possible to provide a method of manufacturing a rotor core that can easily adjust the balance without applying putty or the like. .
【００２６】又、この発明の請求項５によれば、圧延方
向に延在する帯状磁性部材の幅方向両端部の板厚をそれ
ぞれ検出する手段と、検出された両板厚の差から重量の
アンバランス量を演算するとともに中心から圧延方向と
ほぼ直角の位置で且つ板厚の大きい側に形成されるバラ
ンス用穴の位置と大きさを設定してアンバランス量を相
殺するに必要な枚数を演算する手段と、帯状磁性部材か
ら打ち抜き加工をすることにより順次円形状の板状磁性
部材を形成するとともに板状磁性部材のうち枚数のもの
にバランス用穴を形成する手段と、バランス用穴が形成
された板状磁性部材を所定の位置に配置し板状磁性部材
を順次積層して一体化する手段とを備えたので、パテの
貼着等を施すことなく容易にバランスの調整が可能な回
転子鉄心の製造装置を提供することができる。According to a fifth aspect of the present invention, there is provided a means for detecting plate thicknesses at both ends in the width direction of a strip-shaped magnetic member extending in the rolling direction, and a method of detecting a weight based on a difference between the detected plate thicknesses. Calculate the unbalance amount and set the position and size of the balancing hole formed at a position almost perpendicular to the rolling direction from the center and on the side with the larger thickness to determine the number of sheets required to offset the unbalance amount. Means for calculating, means for sequentially forming a circular plate-shaped magnetic member by punching from a band-shaped magnetic member, and means for forming a balance hole in a number of plate-shaped magnetic members; Means for arranging the formed plate-shaped magnetic members at predetermined positions and sequentially stacking and integrating the plate-shaped magnetic members so that the balance can be easily adjusted without applying putty or the like. Manufacturing equipment for rotor core It is possible to provide a.
【００２７】又、この発明の請求項６によれば、アンバ
ランス量を相殺するに必要な枚数は予め演算して記憶さ
せるようにしたので、パテの貼着等を施すことなくさら
に容易にバランスの調整が可能な回転子鉄心の製造装置
を提供することができる。According to the sixth aspect of the present invention, the number of sheets required for canceling the unbalance amount is calculated and stored in advance, so that the balance can be more easily achieved without putting putty or the like. It is possible to provide an apparatus for manufacturing a rotor iron core capable of adjusting the rotation angle.
【図１】 この発明の実施の形態１における回転子鉄心
の構成を示し、（Ａ）は正面図、（Ｂ）は（Ａ）におけ
る線Ｂ−Ｂに沿う断面図である。FIG. 1 shows a configuration of a rotor core according to Embodiment 1 of the present invention, wherein (A) is a front view, and (B) is a cross-sectional view along line BB in (A).
【図２】 図１における回転子鉄心が適用された回転子
の構成を示し、（Ａ）は正面図、（Ｂ）は（Ａ）におけ
る線Ｂ−Ｂに沿う断面図である。2A and 2B show a configuration of a rotor to which the rotor core in FIG. 1 is applied, wherein FIG. 2A is a front view, and FIG. 2B is a cross-sectional view taken along line BB in FIG.
【図３】 図１における回転子鉄心を製造するための装
置の構成を示す斜視図である。FIG. 3 is a perspective view showing a configuration of an apparatus for manufacturing the rotor core in FIG. 1;
【図４】 図３における回転子の製造装置において帯状
磁性部材から板状磁性部材を形成する工程を示す平面図
である。FIG. 4 is a plan view showing a step of forming a plate-shaped magnetic member from a band-shaped magnetic member in the rotor manufacturing apparatus in FIG.
【図５】 図４における帯状磁性部材および板状磁性部
材の寸法関係を示し、（Ａ）は平面図、（Ｂ）は（Ａ）
における線Ｂ−Ｂに沿う断面図である。5A and 5B show a dimensional relationship between the band-shaped magnetic member and the plate-shaped magnetic member in FIG. 4, wherein FIG. 5A is a plan view and FIG.
FIG. 3 is a sectional view taken along line BB in FIG.
【図６】 この発明の実施の形態２における回転子鉄心
が適用された回転子の構成を示し、（Ａ）は正面図、
（Ｂ）は（Ａ）における線Ｂ−Ｂに沿う断面図である。FIG. 6 shows a configuration of a rotor to which a rotor core according to Embodiment 2 of the present invention is applied, (A) is a front view,
(B) is a sectional view along line BB in (A).
１ 第１の板状磁性部材、２ 第２の板状磁性部材、１
ａ，２ａ 磁石用穴、１ｂ，２ｂ 軸用穴、２ｃ バラ
ンス用穴、３，１４ 回転子鉄心、４ 永久磁石、５
回転子軸、６，１５ 回転子。DESCRIPTION OF SYMBOLS 1 1st plate-shaped magnetic member, 2nd plate-shaped magnetic member, 1
a, 2a magnet hole, 1b, 2b shaft hole, 2c balance hole, 3,14 rotor core, 4 permanent magnet, 5
Rotor shaft, 6,15 rotor.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 秋田 裕之 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 (72)発明者 大川 義光 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 (72)発明者 山本 一之 東京都千代田区丸の内二丁目２番３号 三 菱電機株式会社内 Ｆターム(参考） 5H615 AA01 BB14 PP02 PP06 SS02 SS03 SS07 5H622 CA02 CA07 CA13 PP03 PP11 QA01 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hiroyuki Akita 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Inventor Yoshimitsu Okawa 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Ryo Electric Co., Ltd.
Claims (6)
圧延方向に順次打ち抜き加工することにより円形状に形
成される多数の板状磁性部材を積層して一体化された回
転子鉄心において、上記板状磁性部材のうち所定の枚数
のものにはその中心から上記圧延方向とほぼ直角の位置
で且つ板厚の大きい側の部位に所定の大きさを有するバ
ランス用穴が形成されていることを特徴とする回転子鉄
心。1. A rotor core, in which a number of plate-shaped magnetic members formed in a circular shape by successively punching a band-shaped magnetic member extending in a rolling direction in the rolling direction are laminated and integrated, A predetermined number of the plate-shaped magnetic members are provided with a balance hole having a predetermined size at a position substantially perpendicular to the rolling direction from the center thereof and at a portion on the side of a large thickness. A rotor core.
は所定の間隔を介して配置されていることを特徴とする
請求項１記載の回転子鉄心。2. The rotor core according to claim 1, wherein the plate-shaped magnetic members having the balance holes are arranged at predetermined intervals.
は積層方向両端部に半数ずつ配置されていることを特徴
とする請求項１記載の回転子鉄心。3. The rotor core according to claim 1, wherein the plate-shaped magnetic members having the balance holes are arranged in half at both ends in the stacking direction.
向両端部の板厚差から重量のアンバランス量を演算する
工程と、中心から上記圧延方向とほぼ直角の位置で且つ
板厚の大きい側に形成されるバランス用穴の位置と大き
さを設定して上記アンバランス量を相殺するに必要な枚
数を演算する工程と、上記帯状磁性部材から打ち抜き加
工をすることにより順次円形状の板状磁性部材を形成す
るとともに上記板状磁性部材のうち上記枚数のものに上
記バランス用穴を形成する工程と、上記バランス用穴が
形成された板状磁性部材を所定の位置に配置し上記板状
磁性部材を順次積層して一体化する工程とを包含したこ
とを特徴とする回転子鉄心の製造方法。4. A step of calculating a weight imbalance amount from a difference in sheet thickness at both ends in the width direction of the strip-shaped magnetic member extending in the rolling direction, and a step of making the sheet thickness substantially perpendicular to the rolling direction from the center. A step of setting the position and size of the balance hole formed on the large side and calculating the number of sheets required to offset the unbalance amount, and sequentially forming a circular shape by punching from the band-shaped magnetic member. Forming a plate-shaped magnetic member and forming the balance hole in the number of the plate-shaped magnetic members, and disposing the plate-shaped magnetic member with the balance hole formed in a predetermined position; A step of sequentially stacking and integrating the plate-shaped magnetic members, and a method of manufacturing a rotor core.
向両端部の板厚をそれぞれ検出する手段と、上記検出さ
れた両板厚の差から重量のアンバランス量を演算すると
ともに中心から上記圧延方向とほぼ直角の位置で且つ板
厚の大きい側に形成されるバランス用穴の位置と大きさ
を設定して上記アンバランス量を相殺するに必要な枚数
を演算する手段と、上記帯状磁性部材から打ち抜き加工
をすることにより順次円形状の板状磁性部材を形成する
とともに上記板状磁性部材のうち上記枚数のものに上記
バランス用穴を形成する手段と、上記バランス用穴が形
成された板状磁性部材を所定の位置に配置し上記板状磁
性部材を順次積層して一体化する手段とを備えたことを
特徴とする回転子鉄心の製造装置。5. A means for detecting plate thicknesses at both ends in the width direction of a strip-shaped magnetic member extending in a rolling direction, calculating an unbalance amount of weight from a difference between the detected plate thicknesses and calculating from a center. Means for setting the position and size of a balancing hole formed at a position substantially perpendicular to the rolling direction and on the side with a large thickness to calculate the number of sheets required to offset the unbalance amount; Means for forming a circular plate-shaped magnetic member sequentially by punching from a magnetic member and forming the balance hole in the number of the plate-shaped magnetic members, and the balance hole are formed. Means for arranging the plate-shaped magnetic members at predetermined positions and sequentially laminating and integrating the plate-shaped magnetic members.
は予め演算して記憶されていることを特徴とする請求項
５記載の回転子鉄心の製造装置。6. The rotor core manufacturing apparatus according to claim 5, wherein the number of sheets required for canceling the unbalance amount is calculated and stored in advance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35552499A JP3482366B2 (en) | 1999-12-15 | 1999-12-15 | Rotor core and method and apparatus for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP35552499A JP3482366B2 (en) | 1999-12-15 | 1999-12-15 | Rotor core and method and apparatus for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001178089A true JP2001178089A (en) | 2001-06-29 |
| JP3482366B2 JP3482366B2 (en) | 2003-12-22 |
Family
ID=18444444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP35552499A Expired - Fee Related JP3482366B2 (en) | 1999-12-15 | 1999-12-15 | Rotor core and method and apparatus for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3482366B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002247784A (en) * | 2001-02-16 | 2002-08-30 | Mitsubishi Electric Corp | Magnet embedded rotor |
| JP2010104154A (en) * | 2008-10-23 | 2010-05-06 | Mitsui High Tec Inc | Manufacturing method for magnet mounting rotor core |
| JP2010283903A (en) * | 2009-06-02 | 2010-12-16 | Hitachi Automotive Systems Ltd | Rotating electric machine and manufacturing method thereof |
-
1999
- 1999-12-15 JP JP35552499A patent/JP3482366B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002247784A (en) * | 2001-02-16 | 2002-08-30 | Mitsubishi Electric Corp | Magnet embedded rotor |
| JP2010104154A (en) * | 2008-10-23 | 2010-05-06 | Mitsui High Tec Inc | Manufacturing method for magnet mounting rotor core |
| JP2010283903A (en) * | 2009-06-02 | 2010-12-16 | Hitachi Automotive Systems Ltd | Rotating electric machine and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3482366B2 (en) | 2003-12-22 |
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