JP4766774B2 - Laminate core manufacturing equipment - Google Patents

Laminate core manufacturing equipment Download PDF

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Publication number
JP4766774B2
JP4766774B2 JP2001148581A JP2001148581A JP4766774B2 JP 4766774 B2 JP4766774 B2 JP 4766774B2 JP 2001148581 A JP2001148581 A JP 2001148581A JP 2001148581 A JP2001148581 A JP 2001148581A JP 4766774 B2 JP4766774 B2 JP 4766774B2
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JP
Japan
Prior art keywords
core plate
die
iron core
outer shape
punching
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Expired - Fee Related
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JP2001148581A
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Japanese (ja)
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JP2002345215A (en
Inventor
智博 荻久保
博信 奥平
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Kuroda Precision Industries Ltd
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Kuroda Precision Industries Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、順送り金型で積層鉄心の打抜きと積層及びかしめ結合を行う積層鉄心の製造装置に係り、特に外形打抜きパンチでダイ内に抜き落とされる鉄心板に対し、回転による位置ずれを防止して正確に積層及び仮固着ができるように整合させる積層鉄心の製造装置に関する。
【0002】
【従来の技術】
回転電機の積層鉄心の製造には順送り金型を用い、間欠送りした帯状鉄心材料に対して所望形状の打抜き加工を行った後に、最終工程では外形打抜きパンチで鉄心板を順次ダイ内に抜き落とし、所定枚数に積層させて上下に隣接する各鉄心板を仮固着している。
【0003】
【発明が解決しようとする課題】
この仮固着には、各鉄心板に予め半抜き状態で打抜き形成したかしめ用突起を積層時に嵌合係止するかしめ結合や、積層後にレーザ照射によるレーザ溶接を行うなどの仮固着手段が採られているので、外打抜きした各鉄心板は正確に整合した状態でダイ内へ抜き落とす必要がある。
【0004】
しかしながら、外形打抜きする際に各鉄心板が回転等による位置ずれを生ずることがあり、特に打抜きする外形が同心円上から外れた非円形の場合には、外形打抜きパンチによって打ち抜かれた直後に、鉄心板が偏った押圧を受けて回転等による位置ずれを生じ易い。
【0005】
各鉄心板に位置ずれを生ずると、スロットなどの開口部が不整合状態で積層して仮固着されると共に、特に各鉄心板をかしめ結合で仮固着する場合には、かしめ用突起の不整合で積厚を不均一にしたり、かしめ結合が不能になったりするので、積層鉄心製品の品質低下や製品製造の歩留まりを低下させる。
【0006】
そこで本発明では、外形打抜き時における位置ずれの防止を図り、例え打抜きする外形が同心円上から外れた非円形の場合であっても、常に各鉄心板を整合させた状態で積層及び仮固着が行われ、安定した製品の品質と生産性を確保できる積層鉄心の製造装置を提供するものである。
【0007】
【課題を解決するための手段】
本発明による積層鉄心の製造装置は、順送り金型で鉄心板の外形打抜き及び積層工程を実施するダイ内に、外形打抜きした鉄心板を規制して姿勢を矯正する打抜き案内手段を設けた。
【0008】
この積層鉄心の製造装置では、外形打抜きした鉄心板が回転等などによって位置ずれ生ずることを防止し、ダイ内に抜き落とされた各鉄心板を常に正確な整合状態で積層することができるので、積層鉄心製品の品質低下や製品製造の歩留まりを低下させることがない。
【0009】
前記積層鉄心の製造装置における打抜き案内手段は、鉄心板の開口部に外形部分が嵌合する柱状の開口案内部を備えている形態及び、鉄心板の外形に内形部分が嵌合する筒状の外形案内部を備えている形態を採ることができる。
【0010】
この積層鉄心の製造装置では、鉄心板の開口部に外形部分が嵌合する柱状の開口案内部が鉄心板を規制して姿勢を矯正したり、これに加えて鉄心板の外形に内形部分が嵌合する筒状の外形案内部が鉄心板を規制して姿勢を矯正することにより、各鉄心板を常に正確な整合状態で積層することができる。
【0011】
前記積層鉄心の製造装置において、開口案内部の外形部分を鉄心板に打ち抜き形成したスロット形状に適合させた形態及び、外形案内部の内形部分を同心円上から外れた非円形の打抜き外形に適合させた形態を採ることができる。
【0012】
この積層鉄心の製造装置では、この種の回転電機用鉄心板に打抜き形成されているスロットを、開口案内部が嵌合する開口部として利用して姿勢を矯正することで簡単な構成の装置とし、また回転等の位置ずれを生じ易い同心円上から外れた非円形の打抜き外形の鉄心板に、外形案内部の内形部分を適合させることで位置ずれの防止が効果的に行われる。
【0013】
前記積層鉄心の製造装置で実施対象となる鉄心板は、ダイ内で積層した状態でかしめ結合されるかしめ用突起を打抜き面板上に形成すると共に、打抜き外形が同心円上から外れた非円形をしたロータ用鉄心板であることが望ましい。
【0014】
この積層鉄心の製造装置では、特に位置ずれを生じ易い外形が非円形のロータ用鉄心板に対し、位置ずれを生ずると積層した各鉄心板の仮固着に重大な影響を及ぼすかしめ結合によるロータ用鉄心板に適用したものであり、かしめ用突起の不整合による積厚の不均一やかしめ結合が不能になる課題を解消できる。
【0015】
【発明の実施の形態】
以下に、本発明による積層鉄心の製造装置に付いて、好適な実施形態を示す添付図面に基づき詳細に説明するが、図1は本発明の実施対象となるロータ用鉄心板の一形態の平面図、図2は打抜き加工する順送り金型の概略側面図、図3は打抜き工程図、図4は発明の要部である打抜き案内手段の斜視図、図5は同打抜き案内手段の平面図である。
【0016】
本発明の実施対象としては、打抜きする外形が同心円上に沿ったロータやステータ用鉄心板にも適用できるが、図1で示すロータ用鉄心板1のように、打抜きする外形が同心円上から外れた非円形の場合に特に効果的であるから、以下の実施形態ではロータ用鉄心板1による積層鉄心の製造装置に付いて説明する。
【0017】
ロータ用鉄心板1は、中心に軸孔2を設けた円板部3の外周側に、放射状に突出たティースコア部(極部)4を設け、ティースコア部4の先端側には外周側を円弧状面にしたコアバック部5を設け、各ティースコア部4の間には開口部としてスロット6が形成され、円板部3及び又はティースコア部4にはかしめ用突起7が設けられている。
【0018】
このロータ用鉄心板1は、打抜き外形となるコアバック部5の円弧状面が同心円上から外れた形状すなわち、時計回転方向に沿って次第に半径を短くして逃げ面を形成した形状であり、かしめ用突起7は半抜き状態又はプッシュバックによって、上面側が凹部で下面側が凸部を形成する。
【0019】
ロータ用鉄心板1を製造する順送り金型8による製造装置は、外形打抜き及び積層工程を行う構成を除き、その前工程を行う構成は公知のものであるから詳細な説明と図示は省略するが、各種の打抜きパンチを装着した上型9と、打抜きパンチと協働して打抜き加工を行うダイを装着した下型10とを備えている。
【0020】
順送り金型8には、上型9と下型10間に供給された帯状鉄心材料11に対して、まずパイロット孔12の打抜き加工が行われ、このパイロット孔12によって帯状鉄心材料11を矢印方向に順次間欠走行させながら、上型9側のパンチと下型10側のダイを用いて、各工程(イ)〜(ホ)を経ながら所定の打抜き加工と積層かしめ作業が行われる。
【0021】
これらの各工程は、スロット打抜き工程(イ)と、計量孔打抜き工程(ロ)と、軸孔打抜き工程(ハ)と、かしめ用突起形成工程(ニ)と、外形打抜き及び積層工程(ホ)を設けるが、これらの各工程(イ)〜(ホ)は従来技術と同様の構成であるが、特に工程(ホ)には本発明の特有な構成が付加されている。
【0022】
各工程での作業の概略は、工程(イ)ではスロット6の打抜き加工を行い、工程(ロ)では常時は打抜き加工を行わず、所定枚数の積層が行われた際に、かしめ用突起7によるかしめ結合を不能にするために、所定枚数毎にかしめ用突起7部分に計量孔13の打抜き加工を行い、軸孔打抜き工程(ハ)では軸孔2の打抜き加工を行う。
【0023】
かしめ用突起形成工程(ニ)では、かしめ用突起7を半抜き状態で打抜き加工を行い、下面側に凸部7aを上面側に凹部7bを形成するが、工程(ロ)と工程(ニ)を同一工程で行うことも可能である。
【0024】
その際には、計量孔13の打抜き打抜き加工に適合する全抜き状態と、かしめ用突起7の打抜き打抜き加工に適合する半抜き状態とに、打抜きパンチの高さ位置を選択的に切換制御できるようにしておき、常時は半抜き状態の打抜き加工を行い、所定枚数毎に全抜き状態の打抜き加工を行う。
【0025】
なお、これと同様の切換制御は図示は省略しているが計量孔打抜き工程(ロ)でも行われており、この場合の打抜きパンチは打ち抜き不能な高さ位置と全抜き可能な高さ位置の切換制御を行い、常時は打抜き加工を行わず、所定枚数毎に全抜き状態の打抜き加工を行う。
【0026】
外形打抜き及び積層工程(ホ)では、打抜きパンチ14で外形15を打ち抜いてロータ用鉄心板1としてダイ16内へ順次抜き落とし、上下に隣接する各ロータ用鉄心板1の相互間は、凸部7aと凹部7bの嵌合で積層状態にかしめ結合されると共に、所定枚数毎に計量孔13で分離される。
【0027】
特に本発明の固有な構成として、外打抜きしてダイ内に抜き落とした各鉄心板に対し、開口部に嵌合して回転等による位置ずれを防止する打抜き案内手段17が設けられており、図示の実施形態における打抜き案内手段17は、開口部であるスロット6に嵌合する柱状の開口案内部18を備えている。
【0028】
また図示の実施形態における打抜き案内手段17では、打抜きしたロータ用鉄心板1の外形15が嵌合する円筒状の外形案内部19を備え、この外形案内部19は支持部材20で支持されていると共に、開口案内部18はスロット6の数に適合させた4本で構成されている。
【0029】
打抜き案内手段17は、開口案内部18の外形部分をスロット6の形状に適合させて形成すると共に、外形案内部19の内形部分を打抜きした外形15の形状に適合させて形成しており、開口案内部18の外周側が外形案内部19の内周側と一体に連結されている。
【0030】
この打抜き案内手段17を設けたことによって、打抜きパンチ14で外形15を打ち抜いてダイ16内にロータ用鉄心板1として抜き落とされる際に、回転しようとするロータ用鉄心板1を規制して姿勢を矯正するように案内し、各ロータ用鉄心板1を整合状態で積層することができる。
【0031】
すなわち、ダイ16内に抜き落とされた各ロータ用鉄心板1は、スロット6が開口案内部18に嵌合した状態で外形部分に沿って順次下降された後に、外形15が外形案内部19の内形部分に嵌合した状態で順次積層されるので、回転等による位置ずれを防止することができる。
【0032】
従って、スロットなどの開口部が不整合状態で積層して仮固着されことがなくなると共に、特に各鉄心板をかしめ結合で仮固着する場合には、かしめ用突起を整合して積厚を均一にした確実なかしめ結合ができるので、積層鉄心製品の品質向上と製品製造の歩留まりの向上を図ることができる。
【0033】
なお、本発明は図示の実施形態に限定されず、要旨の範囲内で各種の変形を採り得るものであり、例えば実施形態ではスロット6と同数の開口案内部18を設けたが、これを1〜3カ所に設ける実施形態も可能であり、また開口案内部18と外形案内部19は必ずしも一体構造である必要はなく、別体のものを着脱可能に組み付ける実施形態を採ることも可能である。
【0034】
図示の実施形態では、開口案内部18が嵌合する開口として、この種の鉄心板には必ず設けられているスロット6を用いたが、対象とする鉄心板によってはスロット以外の開口部を用いることも可能であり、その場合の条件としては、嵌合によって回転等を規制して回り止めができる開口部で有れば良く、回り止めができる開口部が有ればステータにも適用することが可能である。
【図面の簡単な説明】
【図1】本発明の実施対象となるロータ用鉄心板の平面図。
【図2】本発明を適用した順送り金型による積層鉄心の製造装置の概略側面図。
【図3】本発明を適用した順送り金型による打抜き工程図。
【図4】本発明の要部となる打抜き案内手段の斜視図。
【図5】本発明の要部となる打抜き案内手段の平面図。
【符号の説明】
1 ロータ用鉄心板
2 軸孔
3 円板部
4 ティースコア部
5 コアバック部
6 スロット(開口部)
7 かしめ用突起
7a 凸部
7b 凹部
8 順送り金型
9 上型
10 下型
11 帯状鉄心材料
12 パイロット孔
13 計量孔
14 外形打抜きパンチ
15 外形
16 ダイ
17 打抜き案内手段
18 開口案内部
19 外形案内部
20 支持部材
(イ)スロット打抜き工程
(ロ)計量孔打抜き工程
(ハ)軸孔打抜き工程
(ニ)かしめ用突起形成工程
(ホ)外形打抜き及び積層工程
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laminated core manufacturing apparatus that performs punching, laminating and caulking of laminated cores with a progressive die, and in particular, prevents misalignment due to rotation with respect to an iron core plate that is pulled out into a die by an external punch. The present invention relates to an apparatus for manufacturing a laminated core that is aligned so that lamination and temporary fixing can be performed accurately.
[0002]
[Prior art]
In order to manufacture a laminated iron core of a rotating electrical machine, a progressive die is used, and after punching the desired shape to the intermittently fed strip-shaped core material, the core plate is sequentially pulled out into the die by an external punch in the final process. The iron core plates adjacent in the vertical direction are temporarily fixed by being laminated in a predetermined number.
[0003]
[Problems to be solved by the invention]
For the temporary fixing, temporary fixing means such as caulking coupling in which a caulking protrusion punched and formed in advance in a half-punched state on each iron core plate is fitted or laminated, or laser welding by laser irradiation after lamination is employed. since it is, the core plate having an outer shape punching it is necessary to reduce bleeding into the die while precisely aligned.
[0004]
However, when punching the outer shape, each iron core plate may be displaced due to rotation or the like. Especially, when the outer shape to be punched is a non-circular shape deviating from the concentric circle, the iron core immediately after being punched by the outer punching punch. The plate tends to be displaced due to rotation or the like due to the biased pressure.
[0005]
When misalignment occurs in each iron core plate, slots and other openings are laminated and temporarily fixed in a misaligned state, and in particular, when each iron core plate is temporarily fixed by caulking, misalignment of the caulking projections As a result, the stacking thickness becomes non-uniform or the caulking connection becomes impossible, so that the quality of the laminated core product is lowered and the production yield is lowered.
[0006]
Therefore, in the present invention, the position shift at the time of punching the outer shape is prevented, and even if the outer shape to be punched is a non-circular shape deviating from the concentric circle, lamination and temporary fixing are always performed in a state where the iron core plates are aligned. It is an object of the present invention to provide a laminated iron core manufacturing apparatus that can perform stable product quality and productivity.
[0007]
[Means for Solving the Problems]
The laminated core manufacturing apparatus according to the present invention is provided with a punching guide means for regulating the posture by regulating the outer punched iron core plate in a die for performing the outer punching and laminating process of the iron core plate with a progressive die.
[0008]
In this laminated core manufacturing apparatus, it is possible to prevent the punched outer core plate from being displaced due to rotation, etc., and to always stack each core plate that has been dropped into the die in an accurate alignment state. It does not reduce the quality of laminated core products or the yield of product manufacturing.
[0009]
The punching guide means in the laminated core manufacturing apparatus is provided with a column-shaped opening guide portion in which the outer shape portion is fitted to the opening portion of the iron core plate, and a cylindrical shape in which the inner shape portion is fitted to the outer shape of the iron core plate. It is possible to adopt a form provided with the outer shape guide part.
[0010]
In this laminated iron core manufacturing apparatus, a column-shaped opening guide portion whose outer portion fits into the opening portion of the iron core plate regulates the iron core plate to correct the posture, and in addition to this, an inner shape portion is added to the outer shape of the iron core plate. Since the cylindrical outer shape guide portion to which the is fitted regulates the iron core plate to correct the posture, the iron core plates can always be laminated in an accurate alignment state.
[0011]
In the laminated iron core manufacturing apparatus, the shape adapted to the slot shape in which the outer shape portion of the opening guide portion is punched and formed on the iron core plate, and the non-circular punching shape in which the inner shape portion of the outer shape guide portion deviates from the concentric circle. The form which was made to take can be taken.
[0012]
In this laminated iron core manufacturing apparatus, the slot is formed by punching this type of core plate for a rotating electrical machine as an opening portion into which the opening guide portion is fitted, and the posture is corrected to make the device simple. In addition, it is possible to effectively prevent misalignment by adapting the inner shape portion of the outer shape guide portion to a non-circular punched outer shape iron core plate that deviates from a concentric circle that is likely to cause misalignment such as rotation.
[0013]
The iron core plate to be implemented in the manufacturing apparatus for the laminated iron core has a non-circular shape in which the punching outer shape deviates from the concentric circle while forming the caulking protrusions to be caulked and joined in a stacked state in the die. A rotor core plate is desirable.
[0014]
In this laminated core manufacturing apparatus, especially for a rotor core plate having a non-circular outer shape that is likely to be misaligned, if the misalignment occurs, the temporary fixing of each laminated iron core plate will be seriously affected. This method is applied to the iron core plate, and can solve the problem of uneven thickness due to misalignment of the caulking projections and incapability of caulking.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a laminated iron core manufacturing apparatus according to the present invention will be described in detail with reference to the accompanying drawings showing a preferred embodiment. FIG. 1 is a plan view of one embodiment of a rotor core plate that is an object of the present invention. FIG. 2, FIG. 2 is a schematic side view of a progressive die to be punched, FIG. 3 is a punching process diagram, FIG. 4 is a perspective view of a punching guide means which is a main part of the invention, and FIG. 5 is a plan view of the punching guide means. is there.
[0016]
As an object of implementation of the present invention, the outer shape to be punched can be applied to a rotor or stator iron core plate along a concentric circle, but the outer shape to be punched deviates from the concentric circle like the rotor iron core plate 1 shown in FIG. In the following embodiment, an apparatus for manufacturing a laminated core using the rotor core plate 1 will be described.
[0017]
The rotor core plate 1 is provided with a radially projecting teascore portion (pole portion) 4 on the outer peripheral side of the disc portion 3 having the shaft hole 2 provided in the center, and on the distal end side of the tea score portion 4 the outer peripheral side. A core back portion 5 having an arcuate surface is provided, a slot 6 is formed as an opening between each tea score portion 4, and a caulking projection 7 is provided on the disc portion 3 and / or the tea score portion 4. ing.
[0018]
The iron core plate 1 for a rotor has a shape in which the arc-shaped surface of the core back portion 5 serving as a punched outer shape deviates from a concentric circle, that is, a shape in which a radius is gradually shortened along the clockwise direction to form a flank. The caulking protrusion 7 forms a concave portion on the upper surface side and a convex portion on the lower surface side in a half-drawn state or pushback.
[0019]
The manufacturing apparatus using the progressive metal mold 8 for manufacturing the rotor core plate 1 is known in the art, except for the structure for performing the outer punching and laminating process, and the detailed description and illustration are omitted. The upper die 9 is provided with various punches, and the lower die 10 is provided with a die for punching in cooperation with the punches.
[0020]
In the progressive die 8, the pilot hole 12 is first punched into the band-shaped core material 11 supplied between the upper mold 9 and the lower mold 10, and the band-shaped core material 11 is moved by the pilot hole 12 in the direction of the arrow. Then, predetermined punching and laminating caulking operations are performed through the steps (a) to (e) using the punch on the upper die 9 side and the die on the lower die 10 side while performing intermittent running sequentially.
[0021]
Each of these processes includes a slot punching process (A), a metering hole punching process (B), a shaft hole punching process (C), a caulking projection forming process (D), and an outer shape punching and laminating process (E). Each of these steps (a) to (e) has the same configuration as that of the prior art, but in particular, the step (e) has a specific configuration of the present invention.
[0022]
The outline of the work in each process is as follows. In the process (b), the slot 6 is punched, and in the process (b), the punching process is not always performed. In order to disable the caulking and coupling, the measuring hole 13 is punched into the caulking projection 7 every predetermined number of times, and the shaft hole 2 is punched in the shaft hole punching step (c).
[0023]
In the caulking projection forming step (d), the caulking projection 7 is punched out in a half-punched state to form the convex portion 7a on the lower surface side and the concave portion 7b on the upper surface side. The steps (b) and (d) Can also be performed in the same process.
[0024]
At that time, the punching punch height position can be selectively switched between a fully punched state suitable for the punching process of the measuring hole 13 and a half punched state suitable for the punching process of the caulking projection 7. In this way, the punching process is normally performed in a half-punched state, and the punching process is performed in a fully punched state every predetermined number of sheets.
[0025]
Although the switching control similar to this is not shown, it is also performed in the measuring hole punching step (b). In this case, the punching punch has a height position where punching is impossible and a height position where all punching is possible. Switching control is performed, and punching is not performed at all times, but punching in a fully punched state is performed every predetermined number of sheets.
[0026]
In the outer shape punching and laminating step (e), the outer shape 15 is punched out by the punching punch 14 and sequentially drawn out into the die 16 as the rotor core plate 1, and there is a convex portion between the rotor core plates 1 adjacent to each other vertically. 7a and the concave portion 7b are connected by caulking in a laminated state and separated by the measuring hole 13 every predetermined number.
[0027]
Particularly unique structure of the present invention, for each core plate dropped vent in the die and the outer shape punching, and punching guide means 17 to prevent positional deviation due to rotation or the like fitted into the opening is provided The punching guide means 17 in the illustrated embodiment includes a columnar opening guide portion 18 that fits into the slot 6 that is an opening portion.
[0028]
Further, the punching guide means 17 in the illustrated embodiment includes a cylindrical outer shape guide portion 19 into which the outer shape 15 of the punched rotor core plate 1 is fitted, and the outer shape guide portion 19 is supported by a support member 20. At the same time, the opening guide portion 18 is composed of four pieces adapted to the number of slots 6.
[0029]
The punching guide means 17 is formed by adapting the outer shape portion of the opening guide portion 18 to the shape of the slot 6 and by adapting the outer shape portion of the outer shape guide portion 19 to the shape of the outer shape 15. The outer peripheral side of the opening guide portion 18 is integrally connected to the inner peripheral side of the outer shape guide portion 19.
[0030]
By providing this punching guide means 17, when the outer shape 15 is punched out by the punching punch 14 and pulled out as the rotor core plate 1 into the die 16, the rotor core plate 1 to be rotated is regulated and the posture is controlled. The rotor iron core plates 1 can be laminated in an aligned state.
[0031]
In other words, each rotor core plate 1 pulled out into the die 16 is sequentially lowered along the outer shape portion in a state where the slot 6 is fitted in the opening guide portion 18, and then the outer shape 15 becomes the outer guide portion 19. Since the layers are sequentially stacked while being fitted to the inner shape portion, it is possible to prevent displacement due to rotation or the like.
[0032]
Therefore, the openings such as slots are not laminated and temporarily fixed in an inconsistent state, and particularly when each iron core plate is temporarily fixed by caulking, the caulking projections are aligned to make the stack thickness uniform. As a result, it is possible to improve the quality of the laminated core product and the yield of product manufacture.
[0033]
The present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the gist. For example, in the embodiment, the same number of opening guide portions 18 as the slot 6 are provided. Embodiments provided in three places are also possible, and the opening guide portion 18 and the outer shape guide portion 19 do not necessarily have an integral structure, and it is possible to adopt an embodiment in which separate members are detachably assembled. .
[0034]
In the illustrated embodiment, the slot 6 that is always provided in this type of iron core plate is used as the opening into which the opening guide portion 18 is fitted. However, depending on the target iron core plate, an opening other than the slot is used. In that case, the condition may be an opening that can prevent rotation by fitting to prevent rotation, etc., and if there is an opening that can prevent rotation, it can also be applied to the stator. Is possible.
[Brief description of the drawings]
FIG. 1 is a plan view of a rotor core plate that is an object of the present invention.
FIG. 2 is a schematic side view of a laminated core manufacturing apparatus using a progressive die to which the present invention is applied.
FIG. 3 is a punching process diagram using a progressive die to which the present invention is applied.
FIG. 4 is a perspective view of punching guide means that is a main part of the present invention.
FIG. 5 is a plan view of a punching guide means that is a main part of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotor core plate 2 Shaft hole 3 Disk part 4 Tea score part 5 Core back part 6 Slot (opening part)
7 Caulking projection 7a Convex portion 7b Concavity 8 Progressive die 9 Upper die 10 Lower die 11 Band-shaped core material 12 Pilot hole 13 Measuring hole 14 External punch 15 External 16 Die 17 Punch guide 18 Opening guide 19 External guide 20 Support member (a) Slot punching process (b) Metering hole punching process (c) Shaft hole punching process (d) Caulking projection forming process (e) Outline punching and laminating process

Claims (4)

上型に装着された打抜きパンチと下型に装着されたダイとが協働して鉄心板の外形打抜き加工を行う順送り金型により、前記ダイ内へ抜き落とした鉄心板の積層工程を行う積層鉄心の製造装置であって、
前記下型における前記ダイから下方へ離間した位置に設けられ、鉄心板の外形にその内形部分が嵌合する筒状の外形案内部と、その外周側が前記外形案内部に連結されるとともに、前記外形案内部から上方へ突出して前記鉄心板の開口部にその外形部分が嵌合する柱状の開口案内部とを備え、前記ダイ内へ抜き落とした鉄心板の回転を規制することを特徴とする積層鉄心の製造装置。
Lamination that performs the laminating process of the core plate that has been punched out into the die by a progressive die that performs the outer punching process of the core plate in cooperation with the punch mounted on the upper die and the die attached to the lower die An iron core manufacturing device,
Provided at a position spaced downward from the die in the lower mold, and a cylindrical outer shape guide portion whose inner shape portion is fitted to the outer shape of the iron core plate, and its outer peripheral side is connected to the outer shape guide portion, and characterized in that for regulating the rotation of said protruding from outer guide portion upward and a cylindrical opening guide portion in which the outer part in the opening of the core plate is fitted, the core plate has been dropped vent into said die Manufacturing equipment for laminated iron cores.
前記鉄心板の打抜き外形が同心円上から外れた非円形を呈し、
前記外形案内部の内形部分を前記鉄心板の打抜き外形に適合させた請求項1に記載した積層鉄心の製造装置。
The punched outer shape of the iron core plate exhibits a non-circular shape that deviates from a concentric circle,
The laminated core manufacturing apparatus according to claim 1, wherein an inner shape portion of the outer shape guide portion is adapted to a punched outer shape of the iron core plate .
前記開口案内部の外形部分前記鉄心板に打ち抜き形成したスロット形状に適合させた請求項又はに記載した積層鉄心の製造装置。Apparatus for manufacturing a laminated core which describes the profile section of the opening guide portions to claim 1 or 2 adapted to the slot shape formed stamped into the core plate. 前記鉄心板は、ダイ内で積層した状態でかしめ結合されるべく、前記順送り金型によってかしめ用突起を打抜き面板上に形成されると共に、打抜き外形が同心円上から外れた非円形を呈するロータ用鉄心板である請求項1〜のいずれかに記載した積層鉄心の製造装置。 The core plate is to be caulking stacked state in the die, a rotor exhibiting a non-circular which Rutotomoni formed a caulking projection to blanked surface plate, punching profile deviates from a concentric circle by the progressive mold It is an iron core board, The manufacturing apparatus of the laminated iron core in any one of Claims 1-3 .
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JP5227664B2 (en) * 2008-06-02 2013-07-03 黒田精工株式会社 Manufacturing apparatus and manufacturing method of laminated iron core
ITMI20120356A1 (en) * 2012-03-07 2013-09-08 Corrada Spa BLANKING MOLD WITH ANTI-SPRAY BRAKING DEVICE
CN107834789B (en) * 2017-12-10 2023-11-17 惠州市精准精密技术有限公司 Automatic lamination equipment of rotor
EP3765217B1 (en) * 2018-04-13 2024-04-24 IPG Photonics Corporation Laser assisted machining of electric motor cores
DE102021110816A1 (en) 2021-04-28 2022-11-03 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Laminated core and method for manufacturing a laminated core

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JP2724530B2 (en) * 1993-01-22 1998-03-09 株式会社三井ハイテック Iron core manufacturing method and iron core manufacturing apparatus
JP3415077B2 (en) * 1999-09-30 2003-06-09 三菱電機株式会社 Laminated core and method of manufacturing the same

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WO2019189299A1 (en) * 2018-03-29 2019-10-03 日本電産株式会社 Method for preventing scrap rising of scraps

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