JPS619140A - Laminating and securing method of laminated core and mold therefor - Google Patents
Laminating and securing method of laminated core and mold thereforInfo
- Publication number
- JPS619140A JPS619140A JP12508684A JP12508684A JPS619140A JP S619140 A JPS619140 A JP S619140A JP 12508684 A JP12508684 A JP 12508684A JP 12508684 A JP12508684 A JP 12508684A JP S619140 A JPS619140 A JP S619140A
- Authority
- JP
- Japan
- Prior art keywords
- punched
- punch
- hole
- thin plate
- protrusion
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/09—Magnetic cores comprising laminations characterised by being fastened by caulking
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
【発明の詳細な説明】
（技術分野）
本発明は、変圧機や電動機等のステータやローター等に
用いられる積層鉄心を、相互に接合するための重合固着
方法および金型装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a polymerization and fixing method and a mold apparatus for mutually joining laminated iron cores used in stators, rotors, etc. of transformers, electric motors, etc.
（従来技術）
前記のような積層鉄心（ｉｌ板）を相互に重合固着分る
従来の方法の例を、第８〜９図に基づいて説明すると、
各薄板１に円筒形の押抜穴２（第８図）または逆円錐形
（断面台形）の押抜穴２（第９図）を形成することによ
り、それと対応する打出し突起３を形成し、該打出し突
起３を押込めピン４により他の薄板１の押抜穴２に圧入
して各薄板１を相互に一体化するようにしている（例え
ば特公昭３４−２７６０号公報、特開昭４９−３ ’７
１０３号公報、米国特許第３２０２８５１号、特開昭５
１−２４７０１号公報参照）。(Prior Art) An example of the conventional method of polymerizing and fixing the above-mentioned laminated iron cores (IL plates) to each other will be explained based on FIGS. 8 and 9.
By forming a cylindrical punched hole 2 (Fig. 8) or an inverted conical (trapezoidal cross section) punched hole 2 (Fig. 9) in each thin plate 1, a corresponding punched projection 3 is formed. The punched-out protrusion 3 is press-fitted into the punched hole 2 of another thin plate 1 by a push-in pin 4, so that the respective thin plates 1 are integrated with each other (for example, as disclosed in Japanese Patent Publication No. 34-2760, Japanese Patent Application Publication No. 34-2760, Showa 49-3 '7
No. 103, U.S. Patent No. 3202851, JP-A-5
1-24701).
しかし、前記打出し突起３の面積は前記押抜穴２の面積
とほぼ一致しているので、両者の結合度が浅く、軽ｐ［
ｉ撃などによっても外れ易いという問題がある。However, since the area of the punched protrusion 3 is almost the same as the area of the punched hole 2, the degree of connection between the two is shallow, and the light p[
There is a problem in that it can easily come off even when struck by an i-gun.
（発明の目的）
本発明は、このような従来の問題を解決するためになさ
れたもので、その目的は、薄板の打出し突起を他の薄板
の押抜穴の内周壁面に対して強固に圧着させることがで
きる積層鉄心の重合固着方法および金型装置を提供する
ことにある。(Object of the Invention) The present invention was made in order to solve such conventional problems, and its purpose is to firmly strengthen the punched protrusion of a thin plate against the inner circumferential wall surface of the punched hole of another thin plate. An object of the present invention is to provide a method for polymerizing and fixing a laminated iron core and a mold device that can be crimped to a laminated iron core.
（発明の要旨）
本発明は、各薄板の押抜穴の内周壁面に小突起を形成し
、前記押抜穴に、隣接して重合される薄板の打出し突起
を圧入する際、前記小突起を変形させて打出し突起を圧
縮し、それにより打出し突起の周端部を押抜穴の内周壁
面に強固に圧着させることを特徴とする積層鉄心の重合
固着方法である。(Summary of the Invention) The present invention forms small protrusions on the inner circumferential wall surface of the punched holes of each thin plate, and when press-fitting the punched protrusions of the thin plates that are overlapped adjacently into the punched holes, the small protrusions are This is a method for polymerizing and fixing a laminated iron core, which is characterized by compressing the punched-out projection by deforming the projection, thereby firmly pressing the peripheral end of the punched-out projection to the inner circumferential wall surface of the punched hole.
本発明金型装置は、薄い板に押抜穴による打出し突起を
形成するための打出しパンチの先端部に、前記押抜穴の
内周壁面に小突起を形成する凹所を設けるとともに、前
記薄板を材料から打ち抜くための外形打抜きパンチの内
部に、前記打出し突起を介して前記小突起を変形させる
押込めビンを設けたことを特徴とする積層鉄心の重合固
着を行なう金型装置である。The mold device of the present invention provides a recess for forming a small protrusion on the inner peripheral wall surface of the punched hole at the tip of a punch for forming a punched projection by a punched hole in a thin plate, and A mold device for polymerizing and fixing a laminated iron core, characterized in that a push-in pin for deforming the small protrusion via the punching protrusion is provided inside the external punch for punching out the thin plate from the material. be.
（実施例）
以下、第１図〜第７図に示す実施例に基づいて本発明を
説明する。(Example) The present invention will be described below based on the example shown in FIGS. 1 to 7.
第１図は、本発明金型装置の全体の概要を示している。FIG. 1 shows an overall outline of the mold apparatus of the present invention.
この金型装置は従来と同様、上型１１と下型１２とを備
え、上型１１は薄板材料Ａに押抜穴１３（第６〜７図参
照）による打出し突起１４ デを形成する複・数本
の打出しパンチ１５と、前記薄板材料へより薄板１６を
打ち抜く外形打抜きパンチ１７とを有し、前記下型１２
は、前記打出しパンチ１５に対応する受容部１８と、前
記外形打抜きパンチ１７に対応するダイ１９とを有して
いる。This mold device is equipped with an upper mold 11 and a lower mold 12 as in the conventional case, and the upper mold 11 is a mold for forming punched protrusions 14 in a thin plate material A by punching holes 13 (see FIGS. 6 and 7). - It has several punches 15 and an outline punch 17 for punching out the thin plate 16 from the thin plate material, and the lower die 12
has a receiving portion 18 corresponding to the punch 15 and a die 19 corresponding to the punch 17.
なお、前記上型１１は、最初に材料Ａから打抜かれる薄
板１６からは打出し突起１４を完全に除去するための押
抜きパンチ２０と、その他の用途に用いられる孔を形成
するための押抜きパンチ２１も備えている。また、前記
ダイ１９は、一般に、薄板１６の厚さの不均一性に基づ
く積層厚さの片寄りを防ぐため、薄板１６を所望枚数毎
に所定角度ずつ回転させて積層させるよう、垂直軸の周
りで回動可能となっている。The upper mold 11 is equipped with a punch 20 for completely removing the punching protrusion 14 from the thin plate 16 that is first punched from the material A, and a punch 20 for forming holes used for other purposes. A punch 21 is also provided. In addition, the die 19 is generally arranged on a vertical axis so that the desired number of thin plates 16 are rotated by a predetermined angle and stacked, in order to prevent the laminated thickness from shifting due to non-uniformity of the thickness of the thin plates 16. It can be rotated around.
上記した金型装置において、本発明によると、前記打出
しパンチ１５の先端部には、前記押抜穴１３の内周壁面
１３ａに所望の小突起２２を適当間隔で形成するため、
凹所すなわち凹部１５ａ（第２〜３図）ないしスリ割り
５ｂ （第４〜５因）が設けられるとともに、前記外形
抜きパンチ１７の内部には、前記打出し突起１４を介し
て他の薄板１６の押抜穴１３にある小突起２２を変形さ
せながら、打出し突起１４を他の薄板１６の押抜穴１３
に圧入する押込めビン２３（第１図、第７図）が設けら
れている。In the above-mentioned mold device, according to the present invention, in order to form desired small protrusions 22 at appropriate intervals on the inner peripheral wall surface 13a of the punched hole 13 at the tip of the punch 15,
A recess, that is, a recess 15a (FIGS. 2 and 3) or a slot 5b (factors 4 and 5) is provided, and inside the outline punch 17, another thin plate 16 is formed through the punching protrusion 14. While deforming the small protrusion 22 in the punched hole 13 of the thin plate 16, insert the punched protrusion 14 into the punched hole 13 of the other thin plate 16.
A press-in pin 23 (FIGS. 1 and 7) is provided which is press-fitted into the housing.
以下、上記のように構成された本発明金型装置の動作を
説明することにより、本発明を説明する。Hereinafter, the present invention will be explained by explaining the operation of the mold apparatus of the present invention configured as described above.
第１図において、材料Ａが矢印のように上型１１と下型
１２の間に給送される際、材料Ａは、打出し工程におい
て打出しパンチ１５によって第６〜７図のように押板穴
１３および打出し突起１４が形成される。押抜き穴１３
の深さは一般に材料Ａ（薄板１６）の厚味の範囲内にあ
るが、さらに深、くてもよい。なお、最初の（最下層の
）薄板１６は、その前に打ち抜かれた薄板とは製品を異
にするため、押抜穴１３は打出し突起に代えて抜き落し
穴となっている。In FIG. 1, when the material A is fed between the upper die 11 and the lower die 12 as indicated by the arrow, the material A is pushed by the punch 15 in the punching process as shown in FIGS. A plate hole 13 and a punched protrusion 14 are formed. Punch hole 13
The depth is generally within the range of the thickness of material A (thin plate 16), but may be deeper. Note that since the first (lowest layer) thin plate 16 is a different product from the previously punched thin plate, the punched holes 13 are punched out holes instead of punched out projections.
次に、前記材料Ａは重合工程において、前記外形打抜き
パンチ１７およびダイ１９により薄板１６を順次打抜か
れ、薄板１６はダイ１９内で積層される。また、薄板１
６は材料Ａから打ち抜かれるときとほぼ同時期に第７図
で示すようにその打出し突起１４を前記押込めパン２３
によって他の（下層の）薄板１６の押抜穴１３内へ圧入
される。Next, in the polymerization step, the material A is sequentially punched into thin plates 16 by the outer shape punch 17 and the die 19, and the thin plates 16 are stacked in the die 19. Also, thin plate 1
6 presses the punching protrusion 14 into the pan 23 as shown in FIG.
It is press-fitted into the punched hole 13 of another (lower layer) thin plate 16 by pressing.
押込めビン２３は、上位の打出し突起１４を介して下位
を介して下位の押抜穴１３にある小突起２２を変形させ
るように押圧し、打出し突起１４の周端部を押抜穴１３
の内周壁面１３ａに圧着させる。The pushing pin 23 presses the small protrusion 22 in the lower punching hole 13 through the upper punching projection 14 and the lower punching hole 13 so as to deform the small projection 22 in the lower punching hole 13, and the peripheral end of the punching projection 14 is pressed into the punching hole. 13
The inner circumferential wall surface 13a of the
すなわち、打出し突起１４の外周形状は押抜穴１３内の
小突起２２の存在に影響されず、小突起２２が無いとき
の押抜穴１３の外°形影状とほぼ相似になり、したがっ
て打出し突起１４は下位の押抜穴１３に嵌入される際に
小突起２２を変形させることができる。このような小突
起２２を形成するための前記打出しパンチ１５の凹部５
ａ、またはスリ割り５ｂの幅は０．２〜Ｑ、３＋ｎｍで
ある。That is, the outer circumferential shape of the punched projection 14 is not affected by the presence of the small projection 22 in the punched hole 13, and is almost similar to the outer shape of the punched hole 13 when there is no small projection 22, and therefore, the shape of the punched projection 14 is The projection 14 can deform the small projection 22 when inserted into the lower punch hole 13. The recess 5 of the punch 15 for forming such a small protrusion 22
The width of a or the slot 5b is 0.2 to Q, 3+nm.
なお、小突起２２を形成するには凹部５ａを有する打出
しパンチ１５で充分であ葛が、スリ割り５ｂを有するも
のを用いるとダイ１９側との間に芯ワ
ズレがあっても、打出しパンチ１５がそれに追随して弾
性変形することができるもので、ダイ１９内に正しく挿
入され、チッピングが回避されるとつい効果が得られる
。Note that the punch 15 with the recess 5a is sufficient to form the small protrusion 22, but if the punch 15 with the slot 5b is used, even if the center is misaligned with the die 19 side, the punch 15 can be punched out easily. The punch 15 can be elastically deformed in accordance with the punch 15, and if it is correctly inserted into the die 19 and chipping is avoided, an effect can be obtained.
上記のように打出し突起１４が他の薄板１６の押抜穴１
３内に嵌着されることによって、各薄板１６が互いに一
体化される。As mentioned above, the punched protrusion 14 is inserted into the punched hole 1 of the other thin plate 16.
3, the respective thin plates 16 are integrated with each other.
（発明の効果）
以上説明してきたように本発明によると、押抜穴の内周
壁面に予め小突起を形成した後、この小突起゛を他の薄
板の打出し突起で変形させながら同打出し突起を当該押
抜穴に圧入する構成としたので、打出し突起は圧縮され
て押抜穴の内周壁面に強固に圧着され、容易に外れなく
なる。それゆえ、積層板相互の固着強度を充分に増大さ
せる重合固着方法および金型装置が得られる。(Effects of the Invention) As explained above, according to the present invention, after a small protrusion is formed in advance on the inner circumferential wall surface of a punched hole, the small protrusion is deformed by the ejected protrusion of another thin plate and then the same embossing process is performed. Since the projection is press-fitted into the punched hole, the punched projection is compressed and firmly pressed against the inner circumferential wall surface of the punched hole, and does not easily come off. Therefore, it is possible to obtain a polymerization fixing method and a mold apparatus that can sufficiently increase the bonding strength between the laminates.
第１図は、本発明による金型装置の全体の概要を示す部
分断面正面図、第２図は第１図中の打出し°パンチの要
部拡大図、第３図は第２図の底面図、第４図は第１図中
の打出しパンチの他の例の要部 ）拡大図、第５
図は第４図の底面図、第６図は押抜穴を形成された薄板
の要部斜視図、第７図は、第６図の■−■線に沿う断面
説明図、第８図および第９図はそれぞれ従来の薄板の重
合固着法を示す断面図である。
［符号の説明］
Ａ・・・薄板材料 １１・・・上型１２・・・
下型 １３・・・押抜穴１３ａ・・・内周壁
面 １４・・・打出し突起１５・・・打出しパンチ
１５ａ・・・凹部１５、ｂ・・・スリ割り １
６・・・薄板１７・・・外形打抜パンチ １８・・・受
容部１９・・・ダイ ２２・・・小突起２３
・・・押込めビン
第１１１２１
λ−
第４図
第６図
第８図
第２図
” 第７図
第９図Fig. 1 is a partial cross-sectional front view showing an overview of the entire mold device according to the present invention, Fig. 2 is an enlarged view of the main part of the punch shown in Fig. 1, and Fig. 3 is a bottom view of Fig. 2. Figure 4 is the main part of another example of the punch shown in Figure 1.) Enlarged view, Figure 5
The figure is a bottom view of Fig. 4, Fig. 6 is a perspective view of the main part of the thin plate with punched holes formed, Fig. 7 is an explanatory cross-sectional view taken along line ■-■ of Fig. 6, Fig. FIG. 9 is a sectional view showing a conventional method of polymerizing and fixing thin plates. [Explanation of symbols] A...Thin plate material 11...Upper mold 12...
Lower mold 13...Punching hole 13a...Inner peripheral wall surface 14...Ejection protrusion 15...Ejection punch 15a...Recess 15, b...Slot 1
6...Thin plate 17...Outline punch 18...Receiving portion 19...Die 22...Small protrusion 23
...Pushing bottle No. 11121 λ- Fig. 4 Fig. 6 Fig. 8 Fig. 2'' Fig. 7 Fig. 9
Claims (2)
形成すると同時に、前記押抜穴の内周壁面に小突起を形
成し、次いで前記打出し突起を重合して隣接する薄板の
押抜穴に嵌合すると同時に、前記小突起を変形させ、そ
れにより前記打出し突起を圧縮して同打出し突起の周端
部を前記押抜き穴の内周壁面に圧着させることを特徴と
する積層鉄心の重合固着方法。(1) In each of a large number of thin plates, a punched protrusion is formed by a punched hole, and at the same time, a small protrusion is formed on the inner circumferential wall surface of the punched hole, and then the punched protrusions are overlapped to form a punched protrusion on the adjacent thin plate. At the same time as fitting into the punched hole, the small projection is deformed, thereby compressing the punched-out projection and press-fitting the peripheral end of the punched-out projection to the inner circumferential wall surface of the punched hole. Polymerization fixing method for laminated iron core.
押抜穴を形成することによって打出し突起を形成する打
出しパンチと、前記薄板材料より薄板を打ち抜く外形打
ち抜きパンチとを有し、前記下型は、前記打出しパンチ
に対応する受容部と、前記外形打抜きパンチに対応する
ダイとを有している金型装置であって、前記打出しパン
チには、前記押抜穴の内周壁面に小突起を形成するため
の凹所を設け、前記外形打抜きパンチの内部には、前記
打出し突起により他の薄板の押抜穴にある小突起を変形
させながら前記打出し突起を他の薄板の押抜穴に嵌入さ
せる押込めピンを設けたことを特徴とする積層鉄心の重
合固着を行う金型装置。(2) An upper mold and a lower mold are provided, and the upper mold includes a punch for forming punching protrusions by punching holes in a thin plate material, and an outline punch for punching a thin plate from the thin plate material. and the lower mold has a receiving part corresponding to the punch and a die corresponding to the outer shape punch, the punch has a receiving part corresponding to the punch, and the punch has a receiving part corresponding to the punch. A recess for forming a small protrusion is provided on the inner circumferential wall surface of the hole, and a recess for forming a small protrusion is provided inside the outer punch. A mold device for polymerizing and fixing a laminated iron core, characterized by being provided with a push-in pin for fitting the protrusion into a punched hole in another thin plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12508684A JPS619140A (en) | 1984-06-20 | 1984-06-20 | Laminating and securing method of laminated core and mold therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12508684A JPS619140A (en) | 1984-06-20 | 1984-06-20 | Laminating and securing method of laminated core and mold therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS619140A true JPS619140A (en) | 1986-01-16 |
Family
ID=14901483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12508684A Pending JPS619140A (en) | 1984-06-20 | 1984-06-20 | Laminating and securing method of laminated core and mold therefor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS619140A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6310745U (en) * | 1986-07-09 | 1988-01-23 | ||
| DE9416669U1 (en) * | 1994-10-17 | 1994-12-22 | AEG Zähler GmbH, 31785 Hameln | Core package made of laminated sheet metal laminates |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547521A (en) * | 1977-06-20 | 1979-01-20 | Hitachi Maxell | Method of stacking and fixing laminated core for electric machinery |
-
1984
- 1984-06-20 JP JP12508684A patent/JPS619140A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS547521A (en) * | 1977-06-20 | 1979-01-20 | Hitachi Maxell | Method of stacking and fixing laminated core for electric machinery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6310745U (en) * | 1986-07-09 | 1988-01-23 | ||
| DE9416669U1 (en) * | 1994-10-17 | 1994-12-22 | AEG Zähler GmbH, 31785 Hameln | Core package made of laminated sheet metal laminates |
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