WO2005046992A1 - Appareil a matrice d'estampage progressive et procede pour la fabrication d'une pile de stratifie - Google Patents

Appareil a matrice d'estampage progressive et procede pour la fabrication d'une pile de stratifie Download PDF

Info

Publication number
WO2005046992A1
WO2005046992A1 PCT/KR2004/002933 KR2004002933W WO2005046992A1 WO 2005046992 A1 WO2005046992 A1 WO 2005046992A1 KR 2004002933 W KR2004002933 W KR 2004002933W WO 2005046992 A1 WO2005046992 A1 WO 2005046992A1
Authority
WO
WIPO (PCT)
Prior art keywords
punch
interlock
stock material
strip stock
tap
Prior art date
Application number
PCT/KR2004/002933
Other languages
English (en)
Inventor
Jin Ju
Original Assignee
Hankook Core Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hankook Core Co., Ltd. filed Critical Hankook Core Co., Ltd.
Publication of WO2005046992A1 publication Critical patent/WO2005046992A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/08—Dies with different parts for several steps in a process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/04—Punching, slitting or perforating
    • B32B2038/042—Punching

Definitions

  • stamping die apparatus for improving the binding power of vertically stacked lamina
  • a stack of laminate that is also called lamina core
  • FIG. 1 shows a lamina core in which lamina members L are stacked
  • FIG. 2 shows a lamina core in which lamina members L are stacked
  • FIG. 1 is a section view taken along II-II line of FIG. 1. Referring to FIGs. 1 and 2, a shaft
  • hole H is formed on the center of the lamina members L. Out of the shaft hole H, a plurality of slots S are formed in a radial direction.
  • Each of the lamina members L has an interlock tap 101 for interconnection between the members.
  • an interlock tap 101 formed in the upper lamina member L is fitted into an interlock groove 102 of the lower lamina member to bind both lamina members.
  • the lamina member L is manufactured from a strip stock material by stamping it with a typical progressive stamping die apparatus. Referring to FIG. 3 that shows an
  • an interlock tap punch 10 fixed to an upper press (not shown) is descended and presses a strip stock material 100 supplied on a lower die 20 to a predetermined depth so as to form embossing, thereby forming the
  • interlock tap 101 the interlock tap punch 10 is inserted into a punch hole
  • punch hole 21 is adjusted within the range of about 0.005 to 0.01 mm. If the gap G is
  • the conventional interlock tap forming structure is not equipped with a means for sufficiently absorbing such plastic deformation.
  • the apparatus is
  • the interlock tap punch 10 does not stamp a center of the punch hole 21 exactly, but punches eccentrically with a predetermined variation from the center.
  • the embossing may be asymmetrically formed or excessively deviated to one side to cause cracks in the material and not to form the embossing in the other side, thereby not
  • the present invention is designed in consideration of such problems of the prior
  • an object of the invention is to provide a progressive stamping die apparatus that prepares a clearance recess of a predetermined width in a punch hole of a
  • upper surface of the strip stock material has a shape different from an interlock tap
  • present invention is designed to be capable of buffing and compensating though an
  • the present invention provides a
  • progressive stamping die apparatus which includes a lower die, on an upper surface of
  • the method includes (a) supplying a strip stock material between the upper press and the
  • the interlock groove corresponding to the section of the interlock tap punch is formed in an upper surface of the strip stock material
  • interlock tap having a clearance projection corresponding to the clearance recess of the punch hole is formed in a lower surface of the strip stock material.
  • FIG. 1 is a perspective view showing an example of a general lamina core
  • FIG. 2 is a sectional view taken along II-II line of FIG. 1;
  • FIG. 3 is a sectional view and a plane view for illustrating the interlock tap
  • FIG. 4 is a side view schematically showing a progressive stamping die
  • FIG. 5 is a plane view of a lamina core manufacturing process, schematically shown on a strip stock material, according to a preferred embodiment of the present
  • FIG. 6 is a perspective view schematically showing an interlock tap forming
  • FIG. 7 is a sectional view schematically showing the progressive stamping die
  • a hatching portion is corresponding to the section of an interlock tap punch and a solid
  • FIG. 8 is a sectional view schematically showing that an interlock tap is formed
  • FIG. 9 is a sectional view for illustrating operation of a stacking barrel in the progressive stamping die apparatus according to a preferred embodiment of the present
  • FIG. 10 is a sectional view for illustrating the binding relation of the interlock
  • FIG. 11a is a plane view showing an interlock tap punch and a corresponding
  • FIG. lib is a plane view showing an interlock tap punch and a corresponding
  • FIG. 4 is a side view schematically showing a progressive stamping die
  • FIG. 5 is a
  • a lamina member is manufactured by stamping and
  • the progressive stamping die apparatus includes a
  • the upper press 120 installed above the lower die 110 to move up and down.
  • the upper press 120 is designed to make vertical strokes rapidly by means of a
  • punch holes 130b, 140b, 150b and 160b corresponding to the punches are
  • the progressive stamping die apparatus of this embodiment may be designed to conduct a five-stage process, namely using a slot forming portion 130, a counter hole
  • strip stock material 100 is supplied upon the lower die 110 by means of a separate supply means, the upper press 120 is moved down. At this time, the pin punch 130a
  • the upper press 120 is moved up, and the strip stock material 100 is then advanced again a predetermined distance by means of the supply
  • the pin punch 140a may select one mode between an operating state and a non-operating state by means of a
  • the pin punch 140a becomes in a
  • strip stock material 100 is again advanced a predetermined distance to reach the shaft
  • the strip stock material 100 is advanced to form the interlock tap 101 at the interlock tap forming portion 160 of the stage IV.
  • tap forming portion 160 are schematically shown in FIG. 6. As shown in FIG. 6, the
  • interlock tap punch 160a that presses the strip stock material 100 is fixed to a support
  • the punch hole 160b has a size that ensures a predetermined gap G from the interlock tap punch 160a, as shown in
  • FIG. 7 a plane sectional view of FIG. 7.
  • At least one clearance recess 161a, 161b, 161c and 161d having a predetermined width is formed in the punch hole 160b.
  • 161a, 161b, 161c and 161d are symmetrically formed. Depth and width of the clearance recesses 161a, 161b, 161c and 161d are suitably selected according to thickness and malleability of the strip stock material 100
  • the upper press 120 is moved down to press the material 100, thereby forming the
  • the interlock tap 101 having at least one clearance projection 101a is
  • blanking punch 170a installed to the upper press 120 is moved down to blank the
  • the lamina member L is is inserted into the stacking barrel 170b installed below it and then stacked on another lamina member already stacked
  • FIG. 10 If, after the predetermined number of lamina members, for example 20
  • lamina members are stacked using the same process, a lamina member without an interlock tap is blanked by means of the well-known counter hole forming process and then stacked thereon, a lamina member not stacked any more, but separated.
  • the clearance recess may have various sizes and shapes in an interlock tap that
  • clearance recesses 270a and 270b may be formed at both sides of the rectangular punch hole 270
  • FIG. 11a corresponding to the rectangular punch 260, as shown in FIG. 11a.
  • FIG. 11a corresponding to the rectangular punch 260, as shown in FIG. 11a.
  • lib shows a section of the punch 370 to form an oval interlock tap, a punch hole 360
  • clearance recess is provided to a part of the punch hole having a shape corresponding to the punch section, the strip stock material is pushed into the clearance recess when the
  • interlock tap is formed. It functions to sufficiently relieve and cover the plastic
  • the clearance recess may compensate it.
  • the interlock tap with the clearance projection is formed in the lower surface of the material, the interlock tap with the clearance projection is fit into the narrower interlock groove when the lamina members are stacked, thereby giving firm binding force. Accordingly, it is possible to prevent the lamina cores from being separated or deviated in the following procedure.

Abstract

Cette invention se rapporte à un appareil à matrice d'estampage progressive, qui comprend une matrice inférieure, sur la surface supérieure de laquelle est acheminé un matériau de réserve en bande; une presse supérieure montant et descendant contre la matrice inférieure pour l'estampage du matériau de réserve en bande, afin de produire plusieurs feuillets; et un poinçon de formation de trou taraudé d'interverrouillage combiné à la presse supérieure, afin de presser le matériau de réserve en bande pour former un trou taraudé d'interverrouillage. Un trou de poinçon ayant une forme correspondant à une section du poinçon de formation de trou taraudé d'interverrouillage est formé dans une surface supérieure de la matrice supérieure avec un espace libre prédéterminé, pour que le poinçon de formation de trou taraudé d'interverrouillage y soit inséré. En outre, au moins un évidement libre est formé dans une partie du trou de poinçon, pour que le matériau de réserve en bande y soit partiellement poussé, par déformation élastique, lors de la formation du trou taraudé d'interverrouillage.
PCT/KR2004/002933 2003-11-12 2004-11-12 Appareil a matrice d'estampage progressive et procede pour la fabrication d'une pile de stratifie WO2005046992A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2003-0079876 2003-11-12
KR1020030079876A KR100584192B1 (ko) 2003-11-12 2003-11-12 적층 코아 제조 장치 및 이를 이용한 적층 코아 제조 방법

Publications (1)

Publication Number Publication Date
WO2005046992A1 true WO2005046992A1 (fr) 2005-05-26

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ID=34587889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2004/002933 WO2005046992A1 (fr) 2003-11-12 2004-11-12 Appareil a matrice d'estampage progressive et procede pour la fabrication d'une pile de stratifie

Country Status (2)

Country Link
KR (1) KR100584192B1 (fr)
WO (1) WO2005046992A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101989791A (zh) * 2010-08-09 2011-03-23 苏州百狮腾电气有限公司 定子分离模
DE102012022084A1 (de) * 2012-11-09 2014-05-15 Volkswagen Aktiengesellschaft Rotoranordnung für eine elektrische Maschine, elektrische Maschine und Verfahren zum Herstellen der Rotoranordnung
EP2853317A1 (fr) * 2013-09-30 2015-04-01 Wilhelm Schröder GmbH Procédé de fabrication d'une pièce en tôle ayant une grande épaisseur de paroi et pièce en tôle obtenue par ledit procédé
WO2016098354A1 (fr) * 2014-12-18 2016-06-23 黒田精工株式会社 Dispositif outil progressif et procédé pour la fabrication de noyau de fer feuilleté utilisant celui-ci
JP2016120511A (ja) * 2014-12-25 2016-07-07 株式会社三井ハイテック 薄板材の打抜き装置及びその打抜き方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102327979B1 (ko) * 2019-11-29 2021-11-17 (주)포스코에스피에스 적층코어 제조를 위한 엠보싱 가공장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5123155A (en) * 1983-03-25 1992-06-23 L. H. Carbide Corporation Apparatus and method for manufacturing laminated parts
US5349740A (en) * 1983-03-25 1994-09-27 L. H. Carbide Corporation Method and progressive die assembly with separate blanking and stacking for the manufacture of laminated parts
US5894182A (en) * 1997-08-19 1999-04-13 General Electric Company Motor with rotor and stator core paired interlocks
US6163949A (en) * 1996-06-05 2000-12-26 L.H. Carbide Corporation Method for manufacturing long, slender lamina stack from nonuniform laminae

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05103449A (ja) * 1991-10-04 1993-04-23 Asmo Co Ltd 回転電機用積層コアの製造方法
KR100522534B1 (ko) * 2003-05-23 2005-10-20 한국코아 주식회사 적층 코아 제조장치 및 그 제조방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5123155A (en) * 1983-03-25 1992-06-23 L. H. Carbide Corporation Apparatus and method for manufacturing laminated parts
US5349740A (en) * 1983-03-25 1994-09-27 L. H. Carbide Corporation Method and progressive die assembly with separate blanking and stacking for the manufacture of laminated parts
US6163949A (en) * 1996-06-05 2000-12-26 L.H. Carbide Corporation Method for manufacturing long, slender lamina stack from nonuniform laminae
US5894182A (en) * 1997-08-19 1999-04-13 General Electric Company Motor with rotor and stator core paired interlocks

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101989791A (zh) * 2010-08-09 2011-03-23 苏州百狮腾电气有限公司 定子分离模
DE102012022084A1 (de) * 2012-11-09 2014-05-15 Volkswagen Aktiengesellschaft Rotoranordnung für eine elektrische Maschine, elektrische Maschine und Verfahren zum Herstellen der Rotoranordnung
EP2853317A1 (fr) * 2013-09-30 2015-04-01 Wilhelm Schröder GmbH Procédé de fabrication d'une pièce en tôle ayant une grande épaisseur de paroi et pièce en tôle obtenue par ledit procédé
WO2016098354A1 (fr) * 2014-12-18 2016-06-23 黒田精工株式会社 Dispositif outil progressif et procédé pour la fabrication de noyau de fer feuilleté utilisant celui-ci
US11065665B2 (en) 2014-12-18 2021-07-20 Kuroda Precision Industries Ltd Progressive die machine and method for manufacturing laminated iron cores by using same
JP2016120511A (ja) * 2014-12-25 2016-07-07 株式会社三井ハイテック 薄板材の打抜き装置及びその打抜き方法

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Publication number Publication date
KR100584192B1 (ko) 2006-05-29
KR20050045711A (ko) 2005-05-17

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