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EP0546317A2 - Procédé de fabrication d'un commutateur plan en matière moulée sous presse - Google Patents

Procédé de fabrication d'un commutateur plan en matière moulée sous presse Download PDF

Info

Publication number
EP0546317A2
EP0546317A2 EP92118864A EP92118864A EP0546317A2 EP 0546317 A2 EP0546317 A2 EP 0546317A2 EP 92118864 A EP92118864 A EP 92118864A EP 92118864 A EP92118864 A EP 92118864A EP 0546317 A2 EP0546317 A2 EP 0546317A2
Authority
EP
European Patent Office
Prior art keywords
grooves
blank
jacket
segments
ring flange
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
Application number
EP92118864A
Other languages
German (de)
English (en)
Other versions
EP0546317A3 (en
EP0546317B1 (fr
Inventor
Joze Potocnik
Boris Kogej
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.)
Kolektor doo
Original Assignee
Kolektor doo
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 Kolektor doo filed Critical Kolektor doo
Publication of EP0546317A2 publication Critical patent/EP0546317A2/fr
Publication of EP0546317A3 publication Critical patent/EP0546317A3/de
Application granted granted Critical
Publication of EP0546317B1 publication Critical patent/EP0546317B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/06—Manufacture of commutators
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49009—Dynamoelectric machine
    • Y10T29/49011—Commutator or slip ring 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49105—Switch making
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/49218—Contact or terminal manufacturing by assembling plural parts with deforming
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/4922—Contact or terminal manufacturing by assembling plural parts with molding of insulation
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49204—Contact or terminal manufacturing
    • Y10T29/49208—Contact or terminal manufacturing by assembling plural parts
    • Y10T29/49222—Contact or terminal manufacturing by assembling plural parts forming array of contacts or terminals

Definitions

  • the invention relates to a method for producing a pressed material commutator, which has the features of the preamble of claim 1.
  • the invention is therefore based on the object of specifying a method of the type mentioned at the outset which enables more economical production without impairing the quality of the commutator. This object is achieved by a method having the features of claim 1.
  • the blank is preferably produced by extrusion, since then, with this reshaping, the flat part can be provided on its inside with radial grooves which are aligned with the grooves and merge into them. These radial grooves, along which the separating cuts are made to divide the segments in the plan part, reduce the required depth of these separating cuts, which not only reduces the effort for separating, but also makes a significant contribution to not endangering the secure anchoring of the segments in the pressed material.
  • the shaping by extrusion also enables the simultaneous formation of a ring of inner anchoring elements according to claim 3 without additional effort.
  • the inner anchoring elements are expediently separated from one another by the grooves extending to the edge of the central bore.
  • the grooves and preferably also the grooves are advantageously given a shape which widens in a wedge shape towards the free edge of the jacket. On the one hand, such a shape is favorable for reasons of forming technology. On the other hand, it is not difficult with such a shape of the grooves to seal them when the molding compound is introduced later.
  • a circular blank is used as the starting material. This can be punched out of sheet metal or tape. However, the material consumption is lower if the round blank is formed from a disc cut from a bar material.
  • the inner anchoring elements are advantageously bent radially outward to increase their effectiveness. This bending process can be carried out in one operation by splitting off external anchoring elements from the inside of the jacket.
  • an annular disk is cut from a rod material. If the rod material is a thick-walled tube, then the disk forms a round blank 1. On the other hand, if the disk is cut off from a solid material, a central hole 2 is then punched out to form the round blank 1. In the exemplary embodiment, the round blank has 1 with an outside diameter of just over 20 mm, a thickness of 4 mm. Subsequently, the pot-shaped blank 3 shown in FIGS. 2 and 3 is formed by extrusion, which forms an annular plan part 4 and an adjoining tubular jacket 5.
  • grooves 6 are formed on the inside of the jacket 5 in the axial direction and open towards the center, the number of which corresponds to the number of segments 7 of the commutator.
  • the grooves 6 are therefore evenly distributed over the circumference of the jacket 5.
  • the width of the grooves decreases evenly from the free end face of the casing 5 towards the flat part 4.
  • the angle enclosed by the groove flanks is approximately 15 ° in the exemplary embodiment.
  • the grooves 6 are closed radially outwards by a material section 8 each.
  • the plan part 4 is also provided on its inside with radially extending grooves 9, one of which is aligned with each groove 6 and, as shown in particular in FIG.
  • the width of the grooves 9 therefore corresponds to the width of the grooves 6 at their end on the face part side. Since the segments 7 are separated from one another by separating cuts running along the grooves 9, the required depth of cut is considerably reduced by the grooves 9, to less than 2 mm in the exemplary embodiment. Since the groove 9 extends as far as the edge of the central hole 2, the groove 9 divides a collar formed on the inside of the plan part during the shaping process and delimits the central hole 2 into a number of identically designed anchoring elements 10 corresponding to the number of segments 7.
  • a radially outwardly projecting ring flange 11 is molded onto the free end of the jacket 5 of the blank 3.
  • the material parts 8 are removed, as a result of which the segments 7 are separated from one another in the region of the jacket.
  • a material layer the thickness of which is equal to or only slightly larger than the thickness of the material parts 8, is displaced in the axial direction towards the free end of the jacket 5, where in a tool receiving the blank 3 there is an annular space corresponding to the annular flange 11 to be formed, into which the displaced material flows.
  • the radial thickness of the material parts 8 is therefore chosen so that the volume of the displaced material layer is sufficient to form the ring flange 11.
  • the ring flange 11 can then be calibrated if necessary. This calibration can be carried out by means of the same press with which the extrusion of the round blank 1 and the formation of the ring flange 11 and the segmentation of the jacket 5 are carried out.
  • the connecting elements to be formed from the annular flange 11, which are arranged centrally with respect to the segments 7, are now punched out.
  • outer anchoring elements 13 are also split off on the inside of the jacket 5 from the flange side.
  • the inner anchoring elements 10 are bent radially outwards to improve their anchoring effect.
  • the blank is filled with molding material 15, leaving a central hub bore 14 free.
  • the shape that receives the blank 3 is provided with ribs that penetrate slightly from the outside into the grooves 6 and close them tightly.
  • the required contact pressure of the flanks of the ribs against the flanks of the grooves 6 can be achieved without problems thanks to the wedge-like tapering of the grooves 6 against the flat part 4.
  • the depth of penetration of the ribs is shown in Fig. 12.
  • the flat part 4 is finally segmented by cuts running along the grooves 9 and penetrating from the brush running surface 4 '.
  • the slots formed by these cuts which, as shown in FIG. 10, also penetrate somewhat into the molding material 15, are designated by 16.
  • the connection elements 12 are bent toward the brush tread 4 '.
  • the hub bore 14 is also unscrewed and the sprue of the hub body formed by the molding material 15 is removed by lowering.
  • the brush tread 4 ' can be turned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Manufacture Of Motors, Generators (AREA)
EP92118864A 1991-12-09 1992-11-04 Procédé de fabrication d'un commutateur plan en matière moulée sous presse Expired - Lifetime EP0546317B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4140475A DE4140475C2 (de) 1991-12-09 1991-12-09 Verfahren zur Herstellung eines Preßstoff-Plankommutators
DE4140475 1991-12-09

Publications (3)

Publication Number Publication Date
EP0546317A2 true EP0546317A2 (fr) 1993-06-16
EP0546317A3 EP0546317A3 (en) 1993-12-08
EP0546317B1 EP0546317B1 (fr) 1995-02-15

Family

ID=6446576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92118864A Expired - Lifetime EP0546317B1 (fr) 1991-12-09 1992-11-04 Procédé de fabrication d'un commutateur plan en matière moulée sous presse

Country Status (3)

Country Link
US (1) US5353492A (fr)
EP (1) EP0546317B1 (fr)
DE (2) DE4140475C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2119848C1 (ru) * 1997-03-12 1998-10-10 Научно-производственное предприятие "Технология" Способ изготовления заготовки электрического коллектора под опрессовку пластмассой
RU2153213C1 (ru) * 1999-02-15 2000-07-20 Открытое акционерное общество "Завод имени А.М. Тарасова" Способ изготовления торцового коллектора
WO2008040654A1 (fr) * 2006-09-29 2008-04-10 Robert Bosch Gmbh Commutateur plan

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5602438A (en) * 1991-02-28 1997-02-11 Robert Bosch Gmbh Roll commutator for electric motors and dynamos, and method of manufacturing it
US5970607A (en) * 1993-09-30 1999-10-26 Illinois Tool Works Inc. Method of making an electrical subassembly
JP2823037B2 (ja) * 1993-11-11 1998-11-11 矢崎総業株式会社 電線保持ケース
GB2286487A (en) * 1994-02-12 1995-08-16 Johnson Electric Sa Planar moulded carbon segment commutator
DE19514795C1 (de) * 1995-04-21 1996-06-05 Anton Holzhauer Umformtechnik Verfahren zur Herstellung eines Kommutators
RU2128388C1 (ru) * 1997-12-31 1999-03-27 Открытое акционерное общество "Завод имени А.М.Тарасова" Способ изготовления торцевого коллектора
KR100278006B1 (ko) * 1998-11-11 2001-01-15 윤종용 정류자를 구비한 전자렌지, 및 전자렌지용 정류자의 제조방법
DE19925286A1 (de) 1999-06-02 2000-12-07 Kolektor D O O Verfahren zur Herstellung eines Plankommutators sowie ein nach diesem Verfahren hergestellter Plankommutator
RU2209498C2 (ru) * 2001-05-31 2003-07-27 Сафа Алисафа оглы Гюльмамедов Способ изготовления коллектора электрической машины
RU2236734C2 (ru) * 2002-04-12 2004-09-20 Зорин Виктор Федорович Способ изготовления коллекторов электрических машин
US6849170B2 (en) * 2003-01-27 2005-02-01 Institut National D'optique Process for making microdevice with movable microplatform
DE102005028789A1 (de) * 2005-06-16 2006-12-28 Kautt & Bux Gmbh Kommutator, zugehöriger Tragkörper sowie Verfahren zur Herstellung eines Kommutators

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB738823A (en) * 1952-06-24 1955-10-19 Hoover Ltd Improvements relating to commutators
JPS4936721B1 (fr) * 1970-01-20 1974-10-03
JPS5227801B2 (fr) * 1971-10-25 1977-07-22
JPS585515B2 (ja) * 1974-03-13 1983-01-31 株式会社デンソー カイテンデンキヨウセイリユウシノ セイゾウホウホウ
FR2548471B1 (fr) * 1983-06-28 1985-10-25 Paris & Du Rhone Collecteur frontal perfectionne

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2119848C1 (ru) * 1997-03-12 1998-10-10 Научно-производственное предприятие "Технология" Способ изготовления заготовки электрического коллектора под опрессовку пластмассой
RU2153213C1 (ru) * 1999-02-15 2000-07-20 Открытое акционерное общество "Завод имени А.М. Тарасова" Способ изготовления торцового коллектора
WO2008040654A1 (fr) * 2006-09-29 2008-04-10 Robert Bosch Gmbh Commutateur plan

Also Published As

Publication number Publication date
DE4140475A1 (de) 1993-06-17
EP0546317A3 (en) 1993-12-08
DE59201411D1 (de) 1995-03-23
DE4140475C2 (de) 1995-01-19
US5353492A (en) 1994-10-11
EP0546317B1 (fr) 1995-02-15

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