JPH0832147B2 - Electric motor manufacturing method - Google Patents
Electric motor manufacturing methodInfo
- Publication number
- JPH0832147B2 JPH0832147B2 JP61276461A JP27646186A JPH0832147B2 JP H0832147 B2 JPH0832147 B2 JP H0832147B2 JP 61276461 A JP61276461 A JP 61276461A JP 27646186 A JP27646186 A JP 27646186A JP H0832147 B2 JPH0832147 B2 JP H0832147B2
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- ring
- drilling
- balance
- manufacturing
- 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.)
- Expired - Fee Related
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 238000005553 drilling Methods 0.000 description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は、軸に永久磁石を装着して回転子を形成する
電動機の製造方法に関する。Description: TECHNICAL FIELD The present invention relates to a method for manufacturing an electric motor in which a permanent magnet is mounted on a shaft to form a rotor.
［従来の技術］ 永久磁石で回転子を形成する電動機の製造方法は、永
久磁石に着磁する前の工程で回転方向のバランスを調整
するものである。[Prior Art] A manufacturing method of an electric motor in which a rotor is formed of permanent magnets is to adjust a balance in a rotating direction in a process before magnetizing the permanent magnets.
この様なバランスの調整は、従来より最も簡単な方法
として、特性に影響を及ぼさない部分にキリ加工で穿孔
し、軸に対する重量のバランスを得ていた。As the simplest method of adjusting the balance in this manner, the weight balance with respect to the shaft is obtained by punching a portion that does not affect the characteristics by drilling.
例えば、第３図および第４図に示される通り、回転子
の軸１に鉄心２を装着し、その外周に永久磁石３が装着
されている状態で、鉄心２の側面にキリ加工４を行うも
のである。For example, as shown in FIGS. 3 and 4, with the iron core 2 mounted on the shaft 1 of the rotor and the permanent magnet 3 mounted on the outer periphery thereof, the side surface of the iron core 2 is subjected to drilling processing 4. It is a thing.
さらに、回転子の径が小さくなる場合、第４図に示さ
れる通り、バランスリング５を永久磁石３の側面に装着
してキリ加工４を行っていた。Further, when the diameter of the rotor becomes small, as shown in FIG. 4, the balance ring 5 is attached to the side surface of the permanent magnet 3 to perform the drilling process 4.
この様なキリ加工４は、回転子のバランスを得るのに
容易確実にバランスが得られる点で都合が良い。Such drilling 4 is convenient in that the balance of the rotor can be easily and surely obtained.
しかしながら、回転子の径が小さくなる場合および軸
１が長くなる場合は、キリ加工４に際して軸１が加工の
障害になることになり、加工が困難になる外、細くて長
い形状のキリが用いられることになり、キリが折れるな
どの障害が発生する。However, when the diameter of the rotor is small and the shaft 1 is long, the shaft 1 becomes a hindrance to the machining during the drilling 4, which makes it difficult to machine, and a thin and long drill is used. As a result, damage such as breakage will occur.
さらに、第４図の実施例では、軸方向に深い穿孔を行
うと永久磁石３を損傷する恐れがあり、キリ加工の管理
が必要であった。Further, in the embodiment shown in FIG. 4, there is a risk of damaging the permanent magnet 3 if a deep hole is bored in the axial direction, and it is necessary to control the drilling process.
従って、特に径が細くなる電動機の製造方法が困難で
あると言えた。Therefore, it can be said that it is difficult to manufacture a motor having a particularly small diameter.
［発明が解決しようとする課題］ 本発明は、この様な事情に鑑みてなされたものであ
り、径が細い回転子でも容易確実に回転のバランスが得
られる電動機の製造方法を得ることを目的としているも
のである。[Problems to be Solved by the Invention] The present invention has been made in view of such circumstances, and an object thereof is to obtain a method of manufacturing an electric motor that can easily and reliably obtain a rotational balance even with a rotor having a small diameter. It is what is said.
［課題を解決するための手段］ 本発明は、永久磁石の側面に密着するリングを備え、
このリングの外周に溝を形成し、この溝にキリの先端部
分を誘導して軸心向きに穿孔して回転子のバランスを得
ることによって課題を解決している。［作用］ リングの外周に溝が形成されているため、キリ加工を
行う際、溝がキリのガイドとなり、リングの幅に近い径
の穿孔を行うことができる。[Means for Solving the Problems] The present invention includes a ring that closely adheres to a side surface of a permanent magnet,
The problem is solved by forming a groove on the outer periphery of this ring and guiding the tip portion of the drill into this groove to perforate in the axial direction to obtain the balance of the rotor. [Operation] Since the groove is formed on the outer periphery of the ring, the groove serves as a guide for the drilling when drilling, and it is possible to drill a hole having a diameter close to the width of the ring.
このため、大きなバランス量が容易に得られ、小形軽
量に構成される電動機における製造が極めて容易にな
る。For this reason, a large balance amount can be easily obtained, and the manufacturing of a small-sized and lightweight electric motor becomes extremely easy.
［実施例］ 本発明を図面に示された一実施例に基づいて説明する
と、第１図は、本発明の電動機の製造方法の一実施例を
示す要部縦断面図、第２図は、その状態を理解するため
の径方向断面図である。[Embodiment] The present invention will be described based on an embodiment shown in the drawings. FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of a method for manufacturing an electric motor of the present invention, and FIG. It is a radial direction sectional view for understanding the state.
第１図において、電動機の製造方法は、軸６に鉄心７
が形成されており、鉄心７の外径側には、永久磁石８が
装着されている。In FIG. 1, the method of manufacturing an electric motor is as follows:
Is formed, and a permanent magnet 8 is mounted on the outer diameter side of the iron core 7.
そして、永久磁石８の両側端面に密着して鉄製のリン
グ９が装着されており、リング９の外周には、ほぼ幅方
向の中央に溝10が形成されている。Then, iron rings 9 are attached to both end surfaces of the permanent magnet 8 in close contact with each other, and a groove 10 is formed on the outer periphery of the ring 9 substantially at the center in the width direction.
第２図において、リング９に対して軸向きにキリ加工
11がなされており、キリ12の径は、リング９の幅に近い
太いものである。In Fig. 2, the ring 9 is drilled in the axial direction.
11 is made, and the diameter of the perforation 12 is a thick one close to the width of the ring 9.
この様な構成において、電動機の製造方法は、軸６に
鉄心７を装着し、その外周に永久磁石８を装着し、さら
にリング９を両端に密着して備えて組み立てる。In such a configuration, in the method of manufacturing an electric motor, the iron core 7 is attached to the shaft 6, the permanent magnets 8 are attached to the outer periphery thereof, and the rings 9 are closely attached to both ends to be assembled.
そして、回転によるアンバランスを調べて修正する。 Then, the imbalance caused by the rotation is investigated and corrected.
このバランスの修正は、一般的にバランスマシーンと
称する装置で、実際に回転させて重量のアンバランスの
状態を調べて行うものであり、アンバランスを生じる重
量の偏りと位置を示すものである。The balance is corrected by a device generally called a balance machine, which is actually rotated to check an unbalanced state of the weight, and indicates a deviation and a position of the weight that causes the unbalance.
この様にバランスマシーンで調べた重量の偏りを修正
するのにリング９にキリ加工11による穿孔を行う。In this way, the ring 9 is perforated by drilling 11 in order to correct the deviation of the weight checked by the balance machine.
このキリ加工11による穿孔は、キリの先端部分がリン
グ９の外周の溝10によって穿孔の位置が誘導され軸方向
のほぼ中心に穿孔を行うことができることになり、リン
グ９の幅に近い径のキリ12を用いて穿孔することができ
る。The drilling by the drilling 11 means that the tip of the drilling is guided by the groove 10 on the outer circumference of the ring 9 and the drilling can be carried out substantially at the center in the axial direction. A drill 12 can be used to drill.
従って、キリ加工11による切削量が多くなり、バラン
ス修正の作用が大きくなるため、複数の穿孔を行なわな
くともバランスの修正が極めて容易に行える。Therefore, the amount of cutting by the drilling 11 is increased and the effect of the balance correction is increased, so that the balance can be corrected very easily without making a plurality of holes.
また、リング９の幅に対して効率良くキリ加工11が行
えるため、リング９の幅を小さくすることができ、軸方
向の長さを犠牲にすることを最小限にすることができ
る。Further, since the drilling 11 can be efficiently performed on the width of the ring 9, the width of the ring 9 can be reduced and the sacrifice of the axial length can be minimized.
さらに、キリ加工11は、リング９の外周が単なる曲面
と異なり、溝10が形成されているため、キリ12が僅かに
溝10と接触すると滑らず切削面ができて滑り防止が行え
る。Further, in the perforation processing 11, since the outer periphery of the ring 9 is different from a mere curved surface and the groove 10 is formed, if the perforation 12 slightly contacts the groove 10, it does not slip and a cutting surface is formed to prevent slipping.
このため、キリ12の先端が滑るといった問題がなく、
キリ加工が容易になり、慣れない作業者にでも容易にキ
リ加工が行える。Therefore, there is no problem that the tip of the drill 12 slips,
Drilling is easy, and even an unfamiliar worker can easily drill.
また、径の大きいキリ12を採用することができるた
め、折れる恐れが少なく、製造方法としては極めて好ま
しい状態を得ることができる。Further, since the drill 12 having a large diameter can be adopted, there is little risk of breaking, and a very preferable state as a manufacturing method can be obtained.
また、リング９が永久磁石８の両端面に密着して備え
られるため、永久磁石８の端面を揃えことができ、特に
接着剤が硬化するまでの間永久磁石８が軸方向に移動す
ることを防止しなければならないが、リング９によって
移動が阻止され、組み立てが容易になるといった効果が
得られる。Further, since the ring 9 is provided in close contact with both end faces of the permanent magnet 8, the end faces of the permanent magnet 8 can be aligned, and in particular, the permanent magnet 8 is prevented from moving in the axial direction until the adhesive is hardened. Although it must be prevented, the ring 9 has the effect of preventing movement and facilitating assembly.
［発明の効果］ 本発明によれば、径が細い回転子でも容易確実に回転
のバランスが得られる電動機の製造方法を得ることがで
き、その効果は、小形軽量で、特に径の小さい電動機に
おいて極めて大きいものである。[Effects of the Invention] According to the present invention, it is possible to obtain a method of manufacturing an electric motor in which rotation balance can be easily and reliably obtained even with a rotor having a small diameter. It is extremely large.
第１図は、本発明の電動機の製造方法の一実施例を示す
要部縦断面図、第２図は、その状態を理解するための径
方向断面図である。 第３図および第４図は、従来の実施例を示した図であ
る。 ６…軸、７…鉄心、８…永久磁石、９…リング、10…
溝、11…キリ加工、12…キリ。FIG. 1 is a longitudinal sectional view of an essential part showing an embodiment of a method for manufacturing an electric motor of the present invention, and FIG. 2 is a radial sectional view for understanding the state. 3 and 4 are diagrams showing a conventional embodiment. 6 ... Shaft, 7 ... Iron core, 8 ... Permanent magnet, 9 ... Ring, 10 ...
Grooves, 11 ... drilling, 12 ... drilling.
Claims (1)
電動機の製造方法において、永久磁石の側面に密着する
リングを備え、このリングの外周に溝を形成し、この溝
にキリの先端部分を誘導して軸心向きに穿孔して回転子
のバランスを得ることを特徴とする電動機の製造方法。1. A method for manufacturing an electric motor in which a permanent magnet is mounted on a shaft to form a rotor, a ring is provided which is in close contact with a side surface of the permanent magnet, and a groove is formed on an outer periphery of the ring, and a groove is formed in the groove. A method of manufacturing an electric motor, characterized in that a tip portion is guided to perforate in the axial direction to obtain a rotor balance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61276461A JPH0832147B2 (en) | 1986-11-21 | 1986-11-21 | Electric motor manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61276461A JPH0832147B2 (en) | 1986-11-21 | 1986-11-21 | Electric motor manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63133855A JPS63133855A (en) | 1988-06-06 |
| JPH0832147B2 true JPH0832147B2 (en) | 1996-03-27 |
Family
ID=17569766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61276461A Expired - Fee Related JPH0832147B2 (en) | 1986-11-21 | 1986-11-21 | Electric motor manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0832147B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007336737A (en) | 2006-06-16 | 2007-12-27 | Ihi Corp | Motor rotor and its rotational balance correcting method |
| JP5062464B2 (en) | 2006-06-16 | 2012-10-31 | 株式会社Ｉｈｉ | Motor rotor |
| JP6343567B2 (en) * | 2015-01-13 | 2018-06-13 | ミネベアミツミ株式会社 | Motor shaft, motor and motor structure |
| DE102017206092A1 (en) * | 2017-04-10 | 2018-10-11 | BSH Hausgeräte GmbH | Electric drive motor |
| JP2019176579A (en) * | 2018-03-27 | 2019-10-10 | マブチモーター株式会社 | Rotor and rotary electric machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56118574U (en) * | 1980-02-12 | 1981-09-10 | ||
| US4549341A (en) * | 1983-07-19 | 1985-10-29 | The Garrett Corporation | Method for producing a permanent magnet rotor |
-
1986
- 1986-11-21 JP JP61276461A patent/JPH0832147B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63133855A (en) | 1988-06-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |