WO2013073300A1 - 積層鉄心の製造方法及びその製造装置 - Google Patents

積層鉄心の製造方法及びその製造装置 Download PDF

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Publication number
WO2013073300A1
WO2013073300A1 PCT/JP2012/075399 JP2012075399W WO2013073300A1 WO 2013073300 A1 WO2013073300 A1 WO 2013073300A1 JP 2012075399 W JP2012075399 W JP 2012075399W WO 2013073300 A1 WO2013073300 A1 WO 2013073300A1
Authority
WO
WIPO (PCT)
Prior art keywords
manufacturing
rolling guide
strip
hole
core
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.)
Ceased
Application number
PCT/JP2012/075399
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
幸徳 大庭
広一 荒川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui High Tec Inc
Original Assignee
Mitsui High Tec Inc
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 Mitsui High Tec Inc filed Critical Mitsui High Tec Inc
Priority to US14/349,449 priority Critical patent/US9539799B2/en
Priority to EP12850111.1A priority patent/EP2782223B1/en
Priority to CN201280048036.6A priority patent/CN104025431B/zh
Publication of WO2013073300A1 publication Critical patent/WO2013073300A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • 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
    • 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
    • B21D28/06—Making more than one part out of the same blank; Scrapless working
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/021—Magnetic cores
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K15/00—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02—Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • H02K15/021—Magnetic cores
    • H02K15/022—Magnetic cores with salient poles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1056—Perforating lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1075—Prior to assembly of plural laminae from single stock and assembling to each other or to additional lamina
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/13—Severing followed by associating with part from same source

Definitions

  • the present invention relates to a manufacturing method and a manufacturing apparatus for a laminated core in which an iron core piece is punched from a strip-shaped punching material and laminated in a blank die to rotate the blank die (referred to as “rolling”).
  • a blank die for every one or more core pieces Is transposed by rotating a predetermined angle.
  • a roll guide pin is generally used as a positioning mechanism for the rotating blank die.
  • a roll die guide hole 50 that is fitted and positioned with this roll guide pin (not shown) is provided in the blank die 51.
  • a positioning mechanism is formed including the rolling guide pins and the rolling guide holes 50.
  • the rolling guide hole 50 is provided at a position that does not interfere with the strip-shaped punching material 52, that is, at an outer position in the width direction of the strip-shaped punching material 52 (Reference, Patent Document 1).
  • 53 is a lower mold
  • 54 is a pilot hole
  • 55 is a stator outer peripheral die.
  • the positioning mechanism is on the outside of the strip-shaped punching material 52, the blank die 51 also needs to be enlarged in the end, resulting in an increase in the size of the mold apparatus.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a method of manufacturing a laminated core and a manufacturing apparatus thereof that can reduce the size of a mold apparatus.
  • the strip-shaped punched material is conveyed to a mold device and sequentially pressed, and the manufactured core pieces are dropped into a blank die, and the blank die is removed.
  • the blank die positioning mechanism having a rolling guide pin and a rolling guide hole is provided on the inner side from both ends in the width direction of the strip-shaped punching material, and the rolling guide pin is inserted into the strip-shaped punching material. A waste hole was provided.
  • the laminated iron core manufacturing apparatus conveys the strip-shaped punching material to a mold apparatus and sequentially performs press processing, and the manufactured iron core pieces are dropped into a blank die, and the blank die is removed.
  • the blank die positioning mechanism having a rolling guide pin and a rolling guide hole is provided on the inner side from both ends in the width direction of the strip-shaped punching material, and the rolling guide pin is disposed on the strip-shaped punching material. The hole is inserted into the rolling guide hole through the hole.
  • the processing of the discard hole is performed simultaneously with the processing of the pilot hole used for processing the iron core piece.
  • the discard hole is formed in an outer region of the core piece or an inner region of the core piece. Further, the diameter of the discard hole is preferably in the range of 1.05 to 1.5 times the diameter of the rolling guide pin (that is, loosely fitted), but the present invention is not limited to this number.
  • a blank die positioning mechanism is provided on the inner side of both end portions in the width direction of the strip-shaped punching material, and the rolling guide pin is inserted into the strip-shaped punching material. Since the discard hole is provided, the mold apparatus can be small in the width direction, and a smaller mold apparatus can be provided.
  • a manufacturing apparatus that performs a method for manufacturing a laminated core according to a first embodiment of the present invention includes a strip punching plate (an example of strip punching material) 10 made of a magnetic steel plate in a mold apparatus (not shown).
  • the pilot holes 11 and 12 and the discard holes 13 to 16 are simultaneously punched and formed on both sides in the width direction of the strip-shaped punching plate 10.
  • the rolling is performed at 90 degrees (the angle at which the blank die 21 is rotated), so that the rolling guide hole 23 is located at the same radial position with the center 19 of the central core piece 18 serving as the rotor as a reference.
  • To 30 are formed, and the first rolling guide hole (group) 23 to 26 and the second rolling guide hole (group) 27 to 30 are formed at positions rotated by 90 degrees.
  • the rolling device has a well-known structure, and after the iron core piece 18 is removed from the blank die 21, the blank die 21 is rotated by a predetermined angle by a servo motor.
  • the pilot holes 11 and 12 are formed at the center positions of the adjacent discard holes 13, 16 and 14, 15 on both sides of the strip-shaped punching plate 10.
  • the inner circular iron core piece 18 is punched with reference to the pilot holes 11 and 12.
  • the stator core piece 20 formed concentrically with the iron core piece 18 is punched and formed from the strip-like punched plate 10 from which the iron core piece 18 has been punched and removed, using the pilot holes 11 and 12 as a reference.
  • the blank die 21 is pulled out.
  • a rolling guide (not shown) provided in the upper die is provided.
  • a pin is attached, and the rotational angle position of the blank die 21 and the position of the iron core piece 18 are accurately set.
  • a positioning mechanism for the blank die 21 is formed by the first rolling guide hole groups 23 to 26 or the second rolling guide hole groups 27 to 30 and the corresponding rolling guide pins. Further, this positioning mechanism is on the inner side of both end portions in the width direction of the strip-shaped punching plate 10. Furthermore, the rolling guide pins are inserted into the discard holes 13 to 16, respectively.
  • the diameter of the blank die 21 is sufficiently larger than the width of the strip-shaped punching plate 10 and protrudes from both sides in the width direction of the strip-shaped punching plate 10. Since the upper die provided with the rolling guide pins only needs to have a width that can completely support the rolling guide pins, the width can be made narrower than the mold (lower die 53) shown in FIG. That is, the mold can be downsized. It should be noted that the size of the throwing holes 13 to 16 is sufficient if the rolling guide pin is loosely fitted. As a result, the rolling guide pin does not affect the positioning of the material.
  • a strip-shaped punching plate 10 having a predetermined width is conveyed to a mold apparatus, and an inner core piece 18 is initially placed in a first blank die (not shown).
  • a small-diameter laminated iron core is manufactured while rolling over.
  • the first blank die is positioned by the rolling guide holes 23 to 30.
  • the strip-shaped punching plate 10 is disposed at a predetermined position of the second blank die 21, the upper die is lowered, the rolling guide pins are discarded, and the first through the holes 13 to 16.
  • the second blank die 21 is positioned by being put in the rolling guide holes 23 to 26 or the second rolling guide holes 27 to 30, and the outer core piece 20 is pulled out to the second blank die 21 (ie, , Press working).
  • the upper die is raised, the rolling guide pin is removed from the first rolling guide holes 23 to 26 or the second rolling guide holes 27 to 30, and the second blank die 21 is rotated by a predetermined angle. In this way, laminated cores are manufactured from the strip-shaped punched plate 10 while the inner and outer core pieces 18 and 20 are rolled.
  • pilot holes 41 and 42 and discard holes 43 and 44 are formed on both sides in the width direction inside a band-shaped punching plate (an example of a band-shaped punching material) 40.
  • a band-shaped punching plate an example of a band-shaped punching material
  • two types of core pieces 45 and 46 are manufactured from a single strip-shaped punched plate 40, but they can also be used as waste holes of adjacent pitches (core pieces) and can be used per pitch. The number of waste holes can be reduced.
  • the blank die 48 in this case is larger than the width of the strip-shaped punching plate 40, but the width of the rolling guide pin provided in the upper die is within the width of the strip-shaped punching plate 40. Mold device. In the first and second embodiments, 180 degrees or 90 degrees can be transposed.
  • the present invention is not limited to the above-described embodiments, and the configuration thereof can be changed without changing the gist of the present invention.
  • the present invention is also applied when the dimensions, the number of rolling guide holes, the number of throwing holes, and the rolling angle are changed.
  • two large and small iron core pieces are manufactured from one portion of the strip-shaped punching plate.
  • the present invention is also applied to the case where only one or three or more iron core pieces are manufactured.
  • the discard hole was formed in the outer area
  • the discard hole is processed simultaneously with the processing of the pilot hole, the processing of the discard hole and the processing of the pilot hole may be performed separately.
  • the mold device can be small in the width direction, and a smaller mold device can be provided. Therefore, the mold apparatus is relatively inexpensive and has a small installation space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
PCT/JP2012/075399 2011-11-17 2012-10-01 積層鉄心の製造方法及びその製造装置 Ceased WO2013073300A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US14/349,449 US9539799B2 (en) 2011-11-17 2012-10-01 Manufacturing method for laminated core and manufacturing apparatus therefor
EP12850111.1A EP2782223B1 (en) 2011-11-17 2012-10-01 Laminated core manufacturing method and manufacturing device
CN201280048036.6A CN104025431B (zh) 2011-11-17 2012-10-01 层叠铁芯的制造方法及其制造装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-251854 2011-11-17
JP2011251854A JP5843576B2 (ja) 2011-11-17 2011-11-17 積層鉄心の製造方法及びその製造装置

Publications (1)

Publication Number Publication Date
WO2013073300A1 true WO2013073300A1 (ja) 2013-05-23

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PCT/JP2012/075399 Ceased WO2013073300A1 (ja) 2011-11-17 2012-10-01 積層鉄心の製造方法及びその製造装置

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Country Link
US (1) US9539799B2 (enExample)
EP (1) EP2782223B1 (enExample)
JP (1) JP5843576B2 (enExample)
CN (1) CN104025431B (enExample)
WO (1) WO2013073300A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6262631B2 (ja) * 2013-11-07 2018-01-17 株式会社三井ハイテック 積層鉄心の製造方法及び打ち抜き金型装置
CN106716796B (zh) * 2014-11-07 2020-02-21 黑田精工株式会社 层叠铁芯的制造装置和层叠铁芯的制造方法
CN111989213A (zh) * 2018-04-20 2020-11-24 日本电产株式会社 冲压加工产品制造装置
CN112705615B (zh) * 2020-12-09 2023-05-16 大连海尔空调器有限公司 空调钣金件加工方法
CN112600368B (zh) * 2020-12-14 2022-06-24 温岭市钢锋冲件有限公司 一种转子高速冲压及自动理料的加工工艺
CN113814318B (zh) * 2021-09-25 2023-07-04 浙江实日机电科技有限公司 电机铁芯的生产工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959047A (ja) 1982-09-28 1984-04-04 Toshiba Corp 電動機鉄心用順送打抜工具
JP2003116252A (ja) * 2001-10-04 2003-04-18 Tamagawa Seiki Co Ltd 非対称抜孔を有するモータ用鉄芯のプレス自動転積方法
JP2011036039A (ja) * 2009-07-31 2011-02-17 Toyota Boshoku Corp 転積前の打ち抜き方法
JP2011182582A (ja) * 2010-03-02 2011-09-15 Mitsui High Tec Inc 固定子積層鉄心及びその製造方法
JP2011205836A (ja) * 2010-03-26 2011-10-13 Aisin Aw Co Ltd 積層鉄心打ち抜き装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003094120A (ja) * 2001-09-25 2003-04-02 Yamada Dobby Co Ltd 積層コアの加工装置
JP4427760B2 (ja) * 2007-07-26 2010-03-10 株式会社デンソー 積層鉄心の製造方法及び製造装置
JP2009195099A (ja) * 2008-01-15 2009-08-27 Nissan Motor Co Ltd 積層鉄心の製造装置および製造方法並びに積層鉄心

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959047A (ja) 1982-09-28 1984-04-04 Toshiba Corp 電動機鉄心用順送打抜工具
JP2003116252A (ja) * 2001-10-04 2003-04-18 Tamagawa Seiki Co Ltd 非対称抜孔を有するモータ用鉄芯のプレス自動転積方法
JP2011036039A (ja) * 2009-07-31 2011-02-17 Toyota Boshoku Corp 転積前の打ち抜き方法
JP2011182582A (ja) * 2010-03-02 2011-09-15 Mitsui High Tec Inc 固定子積層鉄心及びその製造方法
JP2011205836A (ja) * 2010-03-26 2011-10-13 Aisin Aw Co Ltd 積層鉄心打ち抜き装置

Also Published As

Publication number Publication date
JP2013110791A (ja) 2013-06-06
CN104025431A (zh) 2014-09-03
US20140231003A1 (en) 2014-08-21
EP2782223B1 (en) 2018-06-06
JP5843576B2 (ja) 2016-01-13
EP2782223A4 (en) 2016-01-13
CN104025431B (zh) 2017-02-22
US9539799B2 (en) 2017-01-10
EP2782223A1 (en) 2014-09-24

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