JPH09234523A - Laminating die device - Google Patents
Laminating die deviceInfo
- Publication number
- JPH09234523A JPH09234523A JP8041586A JP4158696A JPH09234523A JP H09234523 A JPH09234523 A JP H09234523A JP 8041586 A JP8041586 A JP 8041586A JP 4158696 A JP4158696 A JP 4158696A JP H09234523 A JPH09234523 A JP H09234523A
- Authority
- JP
- Japan
- Prior art keywords
- core
- back pressure
- laminated
- pressure block
- die
- 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
- Laser Beam Processing (AREA)
- Manufacture Of Motors, Generators (AREA)
- Punching Or Piercing (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明はモータコアやEIコ
ア等、被加工物を金型内に積層してレーザ光を用いて溶
接する積層金型装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated die apparatus for laminating workpieces such as a motor core and an EI core in a die and welding them using laser light.
【0002】[0002]
【従来の技術】近年、モータは小型化,高性能化を図る
ために固定子を構成する積層コアを極歯単位毎に分割
し、絶縁及び巻線を施した後、所定数量環状に接合して
固定子を形成する製造方法が用いられている。細分化さ
れた積層コア単体は寸法精度、固着強度が要求され、半
抜き加工を施した凹凸の嵌合によるコア片どうしを結合
させるパック金型に代わりレーザ光を用い金型内で溶接
接合する積層金型装置が脚光を浴びている(例えば、特
開平4−347561号公報参照)。2. Description of the Related Art In recent years, in order to reduce the size and improve the performance of a motor, a laminated core constituting a stator is divided into units of pole teeth, insulated and wound, and then joined in a predetermined number of rings. The manufacturing method of forming a stator is used. The subdivided laminated core is required to have dimensional accuracy and fixing strength, and the laser welding is used instead of the pack die that joins the core pieces by fitting the recesses and protrusions that have been subjected to the half blanking process, and welded in the die. The laminated mold device is in the limelight (see, for example, Japanese Patent Laid-Open No. 347561/1992).
【0003】従来の積層金型装置の構造について説明す
る。図4(a)は従来の積層金型装置の構造断面図、図
4(b)は従来の積層金型装置の背圧ブロック部の拡大
平面断面図、図5はコア片を積層し溶接接合した積層コ
アの斜視図である。The structure of a conventional laminated mold device will be described. 4 (a) is a structural cross-sectional view of a conventional laminated mold apparatus, FIG. 4 (b) is an enlarged plan sectional view of a back pressure block portion of the conventional laminated mold apparatus, and FIG. It is a perspective view of the laminated core which did.
【0004】図4(a),図4(b),図5において、
1はフープ材よりなる板材、9aはこの板材1から所定
の形状に打ち抜かれたコア片、9はコア片9aを積層金
型装置の内部で所定枚数積層し溶接接合部10をレーザ
光で溶接した積層コアである。積層金型装置の構造は、
コア片9aの外周を打ち抜くパンチ2を有する上型3
と、コア片9aが抜き込まれるダイ4を有する下型5
と、ダイ4の下部には打ち抜かれたコア片9aを密着状
態で水平に保持できるようにコア片9aの外周形状に合
致した形状の保持孔6bを有する背圧ブロック6を設け
ている。この背圧ブロック6にはレーザ光の通る貫通孔
6aがあり、この貫通孔6aに相対した位置にレーザ光
を照射する照射ユニット8が配設されている。この照射
ユニット8は外部に設置されたレーザ発振器(図示せ
ず)に光学的に接続されている。In FIGS. 4 (a), 4 (b) and 5,
Reference numeral 1 is a plate material made of a hoop material, 9a is a core piece punched out from the plate material 1 in a predetermined shape, 9 is a predetermined number of core pieces 9a stacked inside a stacking die apparatus, and a welded joint 10 is welded with a laser beam. It is a laminated core. The structure of the laminated mold device is
Upper die 3 having a punch 2 for punching the outer periphery of the core piece 9a
And a lower die 5 having a die 4 into which the core piece 9a is pulled out.
Further, a back pressure block 6 having a holding hole 6b having a shape matching the outer peripheral shape of the core piece 9a is provided in the lower portion of the die 4 so that the punched core piece 9a can be horizontally held in a closely contacted state. The back pressure block 6 has a through hole 6a through which laser light passes, and an irradiation unit 8 for irradiating the laser light is arranged at a position facing the through hole 6a. The irradiation unit 8 is optically connected to a laser oscillator (not shown) installed outside.
【0005】以上のように構成された積層金型装置につ
いて、以下その動作について説明する。まずコア片9a
は板材1からパンチ2によって打ち抜かれ、ダイ4内に
抜き込まれる。このコア片9aは側縁が背圧ブロック6
の保持孔6bの内面に密着した状態で1枚抜き込まれる
毎に1枚分の厚さだけ下方に移動する。そして照射ユニ
ット8からコア片9aどうしの重ね合わせ目に向けてレ
ーザ光を照射し溶接を行う。この溶接動作はプレスのラ
ムの動きつまり打ち抜き動作と同期したパルス作動によ
って行なわれる。この動作を繰り返すことにより必要な
枚数の積層コアが得られる。積層コアの切り離しは1パ
ルス分のレーザ光の照射を止めてコアどうしの重ね合わ
せ目のレーザ溶接をやめることにより可能となる。The operation of the laminated mold apparatus having the above structure will be described below. First, the core piece 9a
Is punched from the plate material 1 by the punch 2 and then punched into the die 4. This core piece 9a has a back pressure block 6 on its side edge.
Each time one sheet is pulled out in a state of being in close contact with the inner surface of the holding hole 6b, the sheet is moved downward by the thickness of one sheet. Then, the irradiation unit 8 irradiates a laser beam toward the overlapping portion of the core pieces 9a to perform welding. This welding operation is performed by a pulse operation synchronized with the ram movement of the press, that is, the punching operation. By repeating this operation, the required number of laminated cores can be obtained. The laminated cores can be separated by stopping the irradiation of the laser beam for one pulse and stopping the laser welding of the superposition of the cores.
【0006】[0006]
【発明が解決しようとする課題】しかしながら上記従来
の構成では、背圧ブロックの保持孔でコア片に背圧を加
えコア片どうしを密着した状態で保持しレーザ光で溶接
をする際、背圧が大きい場合はコア片は背圧ブロックの
保持孔内で変形やひずみを発生し、その状態を保持して
溶接されるため金型から取出された積層コアは、材料の
応力歪みやスプリングバックにより溶接接合部に割れや
剥がれ不良が発生する。また、背圧がない又は小さい場
合は、コア片の保持ができない又はコア片どうしの密着
度が弱くコア片の積層方向の寸法が安定せず、溶接接合
されずバラバラになるという問題があった。コア片の積
層方向の寸法変動は上記以外にも、コア片に使用される
板材の板厚(一般には0.35〜0.5mm)の±5%の
バラツキによっても発生する。However, in the above-mentioned conventional structure, when the back pressure is applied to the core pieces by the holding holes of the back pressure block and the core pieces are held in close contact with each other and laser welding is performed, the back pressure is reduced. If it is large, the core piece will be deformed or distorted in the holding hole of the back pressure block, and that state will be held and welded, so the laminated core taken out from the mold will be subject to stress strain of the material and spring back. Cracks and peeling defects occur at welded joints. Further, when there is no or a small back pressure, there is a problem that the core pieces cannot be held or the adhesion between the core pieces is weak and the dimension of the core pieces in the stacking direction is not stable, and the pieces are not welded and joined. . In addition to the above, the dimensional variation of the core piece in the stacking direction also occurs due to a variation of ± 5% of the plate thickness (generally 0.35 to 0.5 mm) of the plate material used for the core piece.
【0007】このため、金型のパンチやダイ等の切れ刃
の状態の変化や板材の材質仕様の変更(例えば材料グレ
ードH23/H18/H14等)に対しては、予め異な
る寸法の保持孔を有する背圧ブロックを製作しておき、
打ち抜かれたコア片の寸法に最適な背圧ブロックを選び
背圧ブロック毎交換し対応していた。For this reason, holding holes of different sizes are previously prepared for changes in the state of cutting edges such as punches and dies of the mold and changes in the material specifications of the plate material (for example, material grade H23 / H18 / H14). Make a back pressure block that you have,
The optimum back pressure block was selected for the size of the punched core piece, and each back pressure block was exchanged and supported.
【0008】また、レーザ溶接の接合部の溶け込み寸法
を板材の板厚2枚分より小さく設定するため、従来の構
成ではレーザ光がコア片の積層方向の累積偏差により最
適照射ポイントであるコア片どうしの重ね合わせ目を外
れ易く、そのため溶接接合できず積層コアがバラバラに
なり易く頻繁にレーザ光の高さ調整が必要であった。こ
の背圧ブロックの交換作業やレーザ光の高さ調整作業は
多大な時間と材料ロスを発生させ、生産性の低下を招い
ていた。Further, since the penetration size of the joint portion of laser welding is set to be smaller than the thickness of two plate materials, in the conventional structure, the laser beam is the optimum irradiation point due to the cumulative deviation in the stacking direction of the core pieces. It was easy to get out of the overlapping seam between them, so that the welded joints could not be made and the laminated core was likely to fall apart, and it was necessary to frequently adjust the height of the laser beam. This back pressure block replacement work and laser light height adjustment work cause a great deal of time and material loss, resulting in a reduction in productivity.
【0009】本発明は上記従来の問題点を解決するもの
で、切れ刃の状態の変化や板材の変更によるレーザ積層
金型の背圧ブロックの交換や頻繁にレーザ光の高さ調整
をすることなく材料ロスを低減し、生産ラインの生産性
向上を図り、安定した品質の製品(積層コア)を提供す
ることを目的とする。The present invention solves the above-mentioned problems of the prior art by replacing the back pressure block of the laser laminated mold by changing the state of the cutting edge or the plate material, and frequently adjusting the height of the laser beam. The objective is to reduce material loss, improve productivity of the production line, and provide stable quality products (laminated core).
【0010】[0010]
【課題を解決するための手段】この課題を解決するため
に本発明は、背圧ブロックを複数個に分割し各々弾性体
の付勢力にて積層コアを外周方向より押圧保持する構成
としている。In order to solve this problem, the present invention has a structure in which the back pressure block is divided into a plurality of blocks, and the laminated core is pressed and held from the outer peripheral direction by the biasing force of each elastic body.
【0011】また、ダイにレーザ光が通る貫通孔を設
け、この貫通孔を通してレーザを照射する構成としてい
る。Further, the die is provided with a through hole through which laser light passes, and the laser is irradiated through the through hole.
【0012】これにより、生産ラインの生産性向上と安
定した品質の積層コアが得られる。As a result, it is possible to improve the productivity of the production line and obtain a laminated core of stable quality.
【0013】[0013]
【発明の実施の形態】本発明の請求項1に記載の発明
は、板材を所定形状に打ち抜くコア抜き用パンチと、前
記パンチにて打ち抜かれたコア片を受けるダイと、前記
ダイの下部に配設され、打ち抜かれた複数のコア片を積
層した状態で保持する背圧ブロックと、積層コアの切断
面をレーザ溶接するレーザ照射ユニットとを備え、前記
背圧ブロックを複数個に分割し、各背圧ブロックは前記
積層コアを外周方向より押圧保持する方向に弾性体にて
付勢してなる積層金型装置としたものであり、コア片は
分割した各背圧ブロックにより弾性体の付勢力で押圧保
持するので歪みや変形がなく、切れ刃の状態の変化や板
材の材質変更の都度行っていた背圧ブロックの交換作業
をなくすことができる。BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention comprises a core punching punch for punching a plate material in a predetermined shape, a die for receiving a core piece punched by the punch, and a lower portion of the die. Arranged, back pressure block for holding a plurality of punched core pieces in a laminated state, and a laser irradiation unit for laser welding the cut surface of the laminated core, the back pressure block is divided into a plurality of, Each back pressure block is a laminated mold device in which the laminated core is biased by an elastic body in a direction of pressing and holding the laminated core from the outer peripheral direction, and the core piece is attached with an elastic body by each divided back pressure block. Since it is pressed and held by the force, there is no distortion or deformation, and it is possible to eliminate the back pressure block replacement work that has been carried out each time the state of the cutting edge or the material of the plate material is changed.
【0014】請求項2に記載の発明は、板材を所定形状
に打ち抜くコア抜き用パンチと、前記パンチにて打ち抜
かれたコア片を受けるダイと、前記ダイの下部に配設さ
れ、打ち抜かれた複数のコア片を積層した状態で保持す
る背圧ブロックと、積層コアの切断面をレーザ溶接する
レーザ照射ユニットとを備え、前記ダイに前記レーザ照
射ユニットからのレーザ光が通る貫通孔を設けた積層金
型装置としたものであり、溶接作業位置を背圧ブロック
の中からダイの中へ変更したことでコア片の積層方向の
累積偏差は小さくなり、頻繁にレーザ光の高さ調整をす
る必要もなく、溶接ミスの少ない安定した品質の積層コ
アが得られる。According to a second aspect of the present invention, a core punching punch for punching a plate material into a predetermined shape, a die for receiving a core piece punched by the punch, and a die disposed below the die are punched. A back pressure block for holding a plurality of core pieces in a laminated state, and a laser irradiation unit for laser welding the cut surface of the laminated core were provided, and the die was provided with a through hole through which laser light from the laser irradiation unit passes. This is a multi-layer mold device. By changing the welding work position from inside the back pressure block to inside the die, the cumulative deviation in the stacking direction of the core pieces becomes smaller, and the height of the laser beam is frequently adjusted. There is no need, and a stable quality laminated core with few welding mistakes can be obtained.
【0015】請求項3に記載の発明は、板材を所定形状
に打ち抜くコア抜き用パンチと、前記パンチにて打ち抜
かれたコア片を受けるダイと、前記ダイの下部に配設さ
れ、打ち抜かれた複数のコア片を積層した状態で保持す
る背圧ブロックと、積層コアの切断面をレーザ溶接する
レーザ照射ユニットとを備え、前記ダイに前記レーザ照
射ユニットからのレーザ光が通る貫通孔を設け、かつ前
記背圧ブロックを複数個に分割し、各背圧ブロックは前
記積層コアを外周方向より押圧保持する方向に弾性体に
て付勢してなる積層金型装置としたものであり、コア片
は分割した各背圧ブロックにより弾性体の付勢力で押圧
保持するので歪みや変形がなく、かつ溶接作業位置を背
圧ブロックの中からダイの中へ変更したことでコア片の
積層方向の累積偏差は小さくなり、頻繁にレーザ光の高
さ調整をする必要もなくなり、溶接ミスの少ない安定し
た品質の積層コアが得られる。According to a third aspect of the present invention, a punch for punching a core for punching a plate material into a predetermined shape, a die for receiving a core piece punched by the punch, and a die arranged below the die for punching. A back pressure block that holds a plurality of core pieces in a laminated state, and a laser irradiation unit that laser-welds the cut surface of the laminated core, the through-hole provided with a laser beam from the laser irradiation unit in the die, Further, the back pressure block is divided into a plurality of pieces, and each back pressure block is a laminated mold device in which the laminated core is biased by an elastic body in a direction of pressing and holding the laminated core from the outer peripheral direction. Does not distort or deform because each divided back pressure block is pressed and held by the urging force of the elastic body.By changing the welding work position from inside the back pressure block to inside the die, the stacking direction of core pieces is accumulated. side Decreases, frequently also eliminates the need for the height adjustment of the laser beam, less stable quality laminated core of the welding mistakes can be obtained.
【0016】以下、本発明の実施の形態について、図1
から図3を用いて説明する。 (実施の形態1)図1(a)は本発明の第1の実施の形
態による積層金型装置の構造断面図、図1(b)は本発
明の第1の実施の形態による背圧ブロック部の拡大平面
断面図である。図1(a),図1(b)において1は板
材、9aはコア片、2はパンチ、3は上型、4はダイ、
5は下型、8は照射ユニットで、図4(a),図4
(b)の従来の構成と異なる点は、保持孔6bを有する
背圧ブロックに代えて背圧ブロック16を複数個に分割
し、弾性体7を用いて各背圧ブロック16を外周方向か
らコア片9aに向けて押圧保持する構造とした点であ
る。16aは複数個に分割した背圧ブロック16のレー
ザ光の通る貫通孔で、積層コアの内周外周の溶接接合部
に各々対応した2個の背圧ブロック16に配設してい
る。同様に7aは弾性体7に設けたレーザ光の通る貫通
孔である。Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG. (Embodiment 1) FIG. 1 (a) is a structural cross-sectional view of a laminated die apparatus according to a first embodiment of the present invention, and FIG. 1 (b) is a back pressure block according to the first embodiment of the present invention. It is an expanded plane sectional view of a part. 1 (a) and 1 (b), 1 is a plate material, 9a is a core piece, 2 is a punch, 3 is an upper die, 4 is a die,
5 is a lower mold, 8 is an irradiation unit, and FIG.
The difference from the conventional configuration of (b) is that the back pressure block 16 is divided into a plurality of pieces instead of the back pressure block having the holding holes 6b, and the elastic body 7 is used to separate each back pressure block 16 from the outer peripheral direction. The point is that the structure is such that it is pressed and held toward the piece 9a. Reference numeral 16a denotes a through hole through which the laser beam of the back pressure block 16 divided into a plurality of parts passes, and is disposed in the two back pressure blocks 16 corresponding to the welded joints on the inner and outer circumferences of the laminated core. Similarly, 7a is a through hole provided in the elastic body 7 through which laser light passes.
【0017】以上のように構成された積層金型装置につ
いて、図1(a),図1(b)を用いてその動作を説明
する。コア片9aはパンチ1により打ち抜かれダイ4内
に順次抜き込まれ通過して背圧ブロック16に保持積層
される。なお背圧ブロック16と弾性体7で確保する寸
法は、コア片9aの外形寸法より概ね片側で5ミクロン
メータから20ミクロンメータの間で小さめに設定され
る。このため各弾性体7は各背圧ブロック16を介して
圧縮される。この弾性体7には例えばウレタンゴムのよ
うな圧縮性材料が良く、コア片9aの微妙な寸法変化に
対応できコア片9aを変形や歪みの無い状態で積層保持
することができ、金型から取出しても溶接割れや剥がれ
がない良好な積層コアが得られる。The operation of the laminated mold apparatus configured as described above will be described with reference to FIGS. 1 (a) and 1 (b). The core pieces 9a are punched out by the punch 1 and sequentially drawn into the die 4 and passed therethrough to be held and laminated on the back pressure block 16. The size secured by the back pressure block 16 and the elastic body 7 is set to be slightly smaller than the outer size of the core piece 9a by approximately 5 μm to 20 μm on one side. Therefore, each elastic body 7 is compressed via each back pressure block 16. The elastic body 7 is preferably made of a compressible material such as urethane rubber, and can cope with a subtle dimensional change of the core piece 9a and can hold the core piece 9a in a laminated state without deformation or distortion. Even if taken out, a good laminated core free from weld cracking or peeling can be obtained.
【0018】(実施の形態2)図2は本発明の第2の実
施の形態による積層金型装置の構造断面図で、図2にお
いて1は板材、9aはコア片、2はパンチ、3は上型、
14はダイ、14aは貫通孔、5は下型、8は照射ユニ
ットである。図4(a),図4(b)の従来の構成と異
なるのは、レーザ光の通る貫通孔を背圧ブロックからダ
イ14に変更して設けた点で、レーザ光の通る貫通孔1
4aはコア片9aの内周外周に各々対応して2ヵ所配設
している。(Embodiment 2) FIG. 2 is a structural sectional view of a laminated die apparatus according to a second embodiment of the present invention. In FIG. 2, 1 is a plate material, 9a is a core piece, 2 is a punch, and 3 is a punch. Upper mold,
Reference numeral 14 is a die, 14a is a through hole, 5 is a lower mold, and 8 is an irradiation unit. 4A and 4B is different from the conventional configuration in that the through hole through which the laser light passes is changed from the back pressure block to the die 14, and the through hole 1 through which the laser light passes is provided.
4a are provided at two locations corresponding to the inner circumference and outer circumference of the core piece 9a.
【0019】溶接ミスは板材1の板厚の±5%のバラツ
キが溶接作業位置まで累積されて発生するが、ダイ14
にレーザ光が通る貫通孔14aを設けた積層金型装置の
構成は、溶接作業位置を累積偏差が小さいダイの切れ刃
面近傍にしたことで最適照射ポイントであるコアどうし
の重ね合わせ目を確実にレーザ溶接することが可能とな
る。The welding error is caused by the variation of ± 5% of the plate thickness of the plate material 1 accumulated up to the welding work position.
In the structure of the laminated die apparatus in which the through hole 14a through which the laser light passes is provided, the welding work position is set in the vicinity of the cutting edge surface of the die with a small cumulative deviation, so that the overlapping point of the cores, which is the optimum irradiation point, is secured. Laser welding is possible.
【0020】(実施の形態3)図3(a)は本発明の第
3の実施の形態による積層金型装置の構造断面図、図3
(b)は、本発明の第3の実施の形態による背圧ブロッ
ク部の拡大平面断面図である。図3(a),図3(b)
の構成において、図1(b)の背圧ブロック16の貫通
孔16aと、弾性体7の貫通孔7aをなくして背圧ブロ
ック26,弾性体17とした点が異なるだけであり、詳
述は省略する。前述した各々の長所を取り入れたことで
さらに優れた効果が得られることはいうまでもない。(Embodiment 3) FIG. 3 (a) is a structural sectional view of a laminated die apparatus according to a third embodiment of the present invention.
FIG. 7B is an enlarged plan sectional view of a back pressure block portion according to the third embodiment of the present invention. 3 (a) and 3 (b)
1B is different in that the through-hole 16a of the back pressure block 16 of FIG. 1B and the through-hole 7a of the elastic body 7 are eliminated and the back pressure block 26 and the elastic body 17 are used. Omit it. It goes without saying that even more excellent effects can be obtained by incorporating the advantages described above.
【0021】[0021]
【発明の効果】以上のように本発明によれば、コア片に
変形や歪みがなく最適なレーザ光の照射ポイントが得ら
れるので、溶接割れや剥がれが無い安定した品質の積層
コアを得ることができる。さらに、切れ刃の状態の変化
や板材の変更等によりその都度行っていた背圧ブロック
の交換作業やレーザ光の高さ調整作業がなくなり生産性
の向上が図れる。As described above, according to the present invention, since the optimum irradiation point of the laser beam can be obtained without any deformation or distortion in the core piece, it is possible to obtain a laminated core of stable quality without welding cracks or peeling. You can Furthermore, the back pressure block replacement work and the laser beam height adjustment work, which have been carried out each time due to changes in the state of the cutting edge, changes in the plate material, etc., can be eliminated, and productivity can be improved.
【図1】(a)本発明の第1の実施の形態による積層金
型装置の構造断面図 (b)本発明の第1の実施の形態による背圧ブロック部
の拡大平面断面図FIG. 1A is a structural cross-sectional view of a laminated mold device according to a first embodiment of the present invention. FIG. 1B is an enlarged plan cross-sectional view of a back pressure block portion according to a first embodiment of the present invention.
【図2】本発明の第2の実施の形態による積層金型装置
の構造断面図FIG. 2 is a structural cross-sectional view of a laminated mold device according to a second embodiment of the present invention.
【図3】(a)本発明の第3の実施の形態による積層金
型装置の構造断面図 (b)本発明の第3の実施の形態による背圧ブロック部
の拡大平面断面図FIG. 3A is a structural cross-sectional view of a laminated mold device according to a third embodiment of the present invention. FIG. 3B is an enlarged plan cross-sectional view of a back pressure block portion according to the third embodiment of the present invention.
【図4】(a)従来の積層金型装置の構造断面図 (b)従来の背圧ブロック部の拡大平面断面図FIG. 4A is a structural cross-sectional view of a conventional laminated mold device. FIG. 4B is an enlarged plan cross-sectional view of a conventional back pressure block unit.
【図5】積層金型装置の積層コアの斜視図FIG. 5 is a perspective view of a laminated core of a laminated mold device.
1 板材 2 パンチ 3 上型 4,14 ダイ 5 下型 6,16,26 背圧ブロック 6a,7a,14a,16a 貫通孔 6b 保持孔 7,17 弾性体 8 照射ユニット 9 積層コア 9a コア片 10 溶接接合部 1 plate material 2 punch 3 upper die 4,14 die 5 lower die 6,16,26 back pressure block 6a, 7a, 14a, 16a through hole 6b holding hole 7,17 elastic body 8 irradiation unit 9 laminated core 9a core piece 10 welding Joint
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 H02K 15/02 H02K 15/02 F E ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Office reference number FI technical display location H02K 15/02 H02K 15/02 FE
Claims (3)
チと、前記パンチにて打ち抜かれたコア片を受けるダイ
と、前記ダイの下部に配設され、打ち抜かれた複数のコ
ア片を積層した状態で保持する背圧ブロックと、積層コ
アの切断面をレーザ溶接するレーザ照射ユニットとを備
え、前記背圧ブロックを複数個に分割し、各背圧ブロッ
クは前記積層コアを外周方向より押圧保持する方向に弾
性体にて付勢してなる積層金型装置。1. A core punching punch for punching a plate material into a predetermined shape, a die for receiving a core piece punched by the punch, and a plurality of punched core pieces arranged below the die. It is equipped with a back pressure block that holds the laminated core and a laser irradiation unit that laser-welds the cut surface of the laminated core.The back pressure block is divided into multiple parts, and each back pressure block presses and holds the laminated core from the outer peripheral direction. A laminated mold device that is urged by an elastic body in the direction of doing.
チと、前記パンチにて打ち抜かれたコア片を受けるダイ
と、前記ダイの下部に配設され、打ち抜かれた複数のコ
ア片を積層した状態で保持する背圧ブロックと、積層コ
アの切断面をレーザ溶接するレーザ照射ユニットとを備
え、前記ダイに前記レーザ照射ユニットからのレーザ光
が通る貫通孔を設けた積層金型装置。2. A core punch for punching a plate material into a predetermined shape, a die for receiving a core piece punched by the punch, and a plurality of punched core pieces arranged below the die. A laminated die apparatus comprising: a back pressure block which is held in a state; and a laser irradiation unit which laser-welds a cut surface of a laminated core, and the die is provided with a through hole through which laser light from the laser irradiation unit passes.
チと、前記パンチにて打ち抜かれたコア片を受けるダイ
と、前記ダイの下部に配設され、打ち抜かれた複数のコ
ア片を積層した状態で保持する背圧ブロックと、積層コ
アの切断面をレーザ溶接するレーザ照射ユニットとを備
え、前記ダイに前記レーザ照射ユニットからのレーザ光
が通る貫通孔を設け、かつ前記背圧ブロックを複数個に
分割し、各背圧ブロックは前記積層コアを外周方向より
押圧保持する方向に弾性体にて付勢してなる積層金型装
置。3. A core punching punch for punching a plate material into a predetermined shape, a die for receiving a core piece punched by the punch, and a plurality of punched core pieces arranged below the die. A back pressure block for holding in a state and a laser irradiation unit for laser welding the cut surface of the laminated core, a through hole through which laser light from the laser irradiation unit passes, and a plurality of the back pressure blocks. A laminated mold apparatus in which the back pressure block is divided into pieces and each of the back pressure blocks is biased by an elastic body in a direction of pressing and holding the laminated core from the outer peripheral direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04158696A JP3546579B2 (en) | 1996-02-28 | 1996-02-28 | Multilayer mold equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04158696A JP3546579B2 (en) | 1996-02-28 | 1996-02-28 | Multilayer mold equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09234523A true JPH09234523A (en) | 1997-09-09 |
JP3546579B2 JP3546579B2 (en) | 2004-07-28 |
Family
ID=12612544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP04158696A Expired - Fee Related JP3546579B2 (en) | 1996-02-28 | 1996-02-28 | Multilayer mold equipment |
Country Status (1)
Country | Link |
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JP (1) | JP3546579B2 (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998037993A1 (en) * | 1997-02-25 | 1998-09-03 | Institute Of Technology Precision Electrical Discharge Work's | Member having different shapes, and layer-built body manufacturing method and apparatus |
JP2004050227A (en) * | 2002-07-19 | 2004-02-19 | Mitsui High Tec Inc | Die device having press-and-support ring |
KR100626608B1 (en) * | 2005-02-26 | 2006-11-23 | (주) 코모텍 | Split core sheet stacking method, and welding system and welding jig used therein, and split core block, stator core and motor manufactured thereby |
JP2008295177A (en) * | 2007-05-24 | 2008-12-04 | Panasonic Corp | Manufacturing method of laminated core, laminated core, and edgewise pressure generation mechanism |
JP2009006351A (en) * | 2007-06-27 | 2009-01-15 | Yoshikawa Seimitsu Kk | Die device for laminated core |
JP2012070633A (en) * | 2006-11-27 | 2012-04-05 | Honda Motor Co Ltd | Manufacturing apparatus of ring core |
DE102011010825A1 (en) * | 2011-01-31 | 2012-08-02 | Kienle + Spiess Gmbh | Method for producing end products formed from lamella stacks, device for carrying out such a method and lamella stacks produced by such a method |
WO2012171051A1 (en) * | 2011-06-15 | 2012-12-20 | Szlezak Philipp | Method for producing a fork arm, and fork arm |
JP2016039339A (en) * | 2014-08-11 | 2016-03-22 | 日立金属株式会社 | Plate member aligning jig and plate member aligning device |
KR102211893B1 (en) * | 2019-11-21 | 2021-02-03 | 서승구 | Alignment device for sorting laminated plates |
CN114567130A (en) * | 2022-03-18 | 2022-05-31 | 广东美芝精密制造有限公司 | Stator assembly and manufacturing method thereof, motor, rotary compressor and manufacturing method thereof |
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JP7172812B2 (en) | 2019-04-08 | 2022-11-16 | 株式会社デンソー | LAMINATED CORE, ROTATING ELECTRICAL MACHINE, AND LAMINATED CORE MANUFACTURING METHOD |
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998037993A1 (en) * | 1997-02-25 | 1998-09-03 | Institute Of Technology Precision Electrical Discharge Work's | Member having different shapes, and layer-built body manufacturing method and apparatus |
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JP2004050227A (en) * | 2002-07-19 | 2004-02-19 | Mitsui High Tec Inc | Die device having press-and-support ring |
KR100626608B1 (en) * | 2005-02-26 | 2006-11-23 | (주) 코모텍 | Split core sheet stacking method, and welding system and welding jig used therein, and split core block, stator core and motor manufactured thereby |
JP2012070633A (en) * | 2006-11-27 | 2012-04-05 | Honda Motor Co Ltd | Manufacturing apparatus of ring core |
JP2008295177A (en) * | 2007-05-24 | 2008-12-04 | Panasonic Corp | Manufacturing method of laminated core, laminated core, and edgewise pressure generation mechanism |
JP2009006351A (en) * | 2007-06-27 | 2009-01-15 | Yoshikawa Seimitsu Kk | Die device for laminated core |
DE102011010825A1 (en) * | 2011-01-31 | 2012-08-02 | Kienle + Spiess Gmbh | Method for producing end products formed from lamella stacks, device for carrying out such a method and lamella stacks produced by such a method |
WO2012171051A1 (en) * | 2011-06-15 | 2012-12-20 | Szlezak Philipp | Method for producing a fork arm, and fork arm |
JP2016039339A (en) * | 2014-08-11 | 2016-03-22 | 日立金属株式会社 | Plate member aligning jig and plate member aligning device |
KR102211893B1 (en) * | 2019-11-21 | 2021-02-03 | 서승구 | Alignment device for sorting laminated plates |
CN114567130A (en) * | 2022-03-18 | 2022-05-31 | 广东美芝精密制造有限公司 | Stator assembly and manufacturing method thereof, motor, rotary compressor and manufacturing method thereof |
CN114567130B (en) * | 2022-03-18 | 2024-04-26 | 广东美芝精密制造有限公司 | Stator assembly and manufacturing method thereof, motor, rotary compressor and manufacturing method thereof |
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