EP0040163B1 - Verfahren zur Herstellung eines Stirnkollektors für elektrische Motoren - Google Patents

Verfahren zur Herstellung eines Stirnkollektors für elektrische Motoren Download PDF

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Publication number
EP0040163B1
EP0040163B1 EP81420069A EP81420069A EP0040163B1 EP 0040163 B1 EP0040163 B1 EP 0040163B1 EP 81420069 A EP81420069 A EP 81420069A EP 81420069 A EP81420069 A EP 81420069A EP 0040163 B1 EP0040163 B1 EP 0040163B1
Authority
EP
European Patent Office
Prior art keywords
commutator
tooling
grooves
diameter
bore
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.)
Expired
Application number
EP81420069A
Other languages
English (en)
French (fr)
Other versions
EP0040163A1 (de
Inventor
Michel Coquillart
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.)
Mavilor Systemes SA
Original Assignee
Mavilor Systemes SA
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 Mavilor Systemes SA filed Critical Mavilor Systemes SA
Publication of EP0040163A1 publication Critical patent/EP0040163A1/de
Application granted granted Critical
Publication of EP0040163B1 publication Critical patent/EP0040163B1/de
Expired 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
    • H01R43/08—Manufacture of commutators in which segments are not separated until after assembly
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R39/00—Rotary current collectors, distributors or interrupters
    • H01R39/02—Details for dynamo electric machines
    • H01R39/04—Commutators
    • H01R39/06—Commutators other than with external cylindrical contact surface, e.g. flat 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
    • Y10T29/49799—Providing transitory integral holding or handling portion

Definitions

  • the invention relates to a method and means for manufacturing front collectors of electric motors, applicable in particular to collectors comprising insulation between the blades.
  • Cylindrical collectors of electric motors are known with mica or other insulation disposed in peripheral grooves, such as those which have been the subject of US Patent US 2,202,820. French Patent 458,088 and German Patent 381,719. None of these Patents provides a satisfactory solution. It is the same for flat collectors, or front, or disc-shaped for which the inter-lamella insulation has not yet been resolved effectively.
  • the invention as characterized in the claims solves the problem of producing in a rational and economical manner, front collectors with inter-lamella insulation in mica, with good precision and simplified tools.
  • the collector is cut by cutting, the various diameters are machined, a plurality of radial grooves of depth less than the thickness of the collector are executed on one face of the crown obtained to maintain between them the strips formed by the zones between the grooves, are introduced into these grooves insulating sheets of profile corresponding to the sectional profile of the collector, but of different dimensions to be held in the grooves when the force is passed through collector in the bore of low taper, of a tool, then in a second tool operating a diametric retreine, the metal thickness of the collector located between the radial grooves and the face of the collector opposite to the grooves is removed by machining. then places the collector thus prepared, between the two parts of a mold into which a coating resin is poured from the collector equipped with e its windings and an inner sleeve.
  • FIG. 2 is a perspective view of a mica strip of section corresponding substantially to the section of the collector shown according to FIG. 1.
  • Figure 3 is a partial perspective view of the manifold after execution of the radial grooves.
  • Figure 4 is a couple view illustrating a mica strip placed in a groove of the collector.
  • Figures 5, 6, 7 and 8 are schematic views illustrating the other phases of the method according to the invention.
  • the collectors are cut from a bar or a copper tube, by sawing off or otherwise, so as to obtain discs which are respectively machined to constitute a blank (1) of sectional profile corresponding to its definition or its characteristics of use.
  • the manifold has a sectional shape comprising two annular bearings (1a-1b) of different diameters, with in the bore, a groove (1c) of rectangular section, and externally, a groove (1d) of liaison.
  • Radial grooves (1e), the depth (a) of which is slightly less than the thickness (b) of the collector, as illustrated in FIG. 4, are executed with a saw mill or otherwise. that the strips (1f) formed between the grooves are held together.
  • Two sheets of mica or other insulating material (2) are cut according to a profile similar to that of the section of the collector, but of height (e) slightly less than or equal at the depth (a) of said grooves.
  • the faces (2a-2b-2c) project beyond the cross-section of the collector when the sheets are arranged in the grooves, while on the contrary, the faces (2d - 2e) are arranged in withdrawal.
  • the mica sheets (2) engaged and positioned in the grooves (1e) are firmly held in place by tightening the strips (1f).
  • the collector equipped with its mica sheets is placed at the entrance of a bore (3a) of low taper, formed in a tool) 3), whose upper diameter (d1) corresponds substantially to the diameter of the collector, while the lower diameter (d2) is smaller, as illustrated in FIG. 5.
  • the collector (1) is forced to descend to the level of the reduced lower diameter (d2) of the bore (3a), to allow by shrinking, the reduction of its diameter, and consequently, the tightening of the strips (1f) thus strongly tightening the sheets of mica (2).
  • the latter are also compressed at their upper part, by the mandrel (4), while the thin parts (1g) of the collector situated under the grooves (1e), deform under the force which they undergo, as illustrated in FIG. 5 .
  • a second tool (5), placed under the tool (3), has a bore (5a) whose diameter (d3) is equal to the diameter (d2) of the bore (3a).
  • the collector is completely and firmly engaged in the tool (5).
  • the tool (5) provided with its collector is then machined on a lathe, in order to produce for example, a groove (1h) on the bearing surface (1b) of the collector, and to erect the opposite face of the collector up to the 'removal of the deformed parts (1g).
  • a metal ring (6) for reinforcing the collector is for example, placed in the outer groove (1d) where it rests on the projecting face (2a) of the mica sheets, without any contact with the collector, therefore without electrical connection, as illustrated in FIG. 7.
  • the tool (5) provided with its collector is then centered above the bore (7a) of a third tool (7) which is in fact, the lower part of the mold in which the collector must be coated with resin, and which comprises for this purpose, a blind bore (7a) intended to receive the collector (1) ejected from the tool (5) by pushing the mandrel (4) or a similar member, as illustrated in FIG. 7.
  • the groove (1 h) can be made before the execution of the grooves (1e), for example, after cutting, or else be of different shape, or the collector may not have this groove (1 h) .
  • the reinforcing ring (6) can be removed or placed in the groove (1h), or put in place before or after positioning the collector in the lower part (7) of the mold.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Insulating Bodies (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (6)

1. Verfahren zur Herstellung der Stirnkollektoren von Elektromotoren in der Ausführung mit Isolierung zwischen den Lamellen, dadurch gekennzeichnet, dass das Verfehren die folgenden Arbeitsvorgänge erfasst: der Kollektor (1) wird durch Zerteilen ausgegeben; die verschiedenen erforderlichen Durchmesser werden bearbeitat; auf einer Fläche der mittels einer Fräsersäge gefertigten Krone wird eine Vielzahl von Radialrillen (le) ausgeführt, derer Tiefe (a) kleiner als die Stärke (b) des Kollektors ist, damit die durch die Zonen zwischen den Rillen gebildeten Lamellen (1f) zwischen den Rillen gehalten werden; Isolierfolien (2) mit einem dem Querschnittprofil des Kollektors entsprechenden Profil, jedoch von unterschiedlichen Abmessungen, werden in diese Rillen eingeführt, damit sie in den Rillen gehalten werden, während man den Kollektor durch die leichtkegelige Bohrung (3a) eines Werkzeugs (3), und dann durch ein zweites, ein diametrales Zusammendrücken des kollektors bewirkende Werkzeug (5) kraftschlüssig durchgehen lässt; die zwischen den Radialrillen (1e) und der den Rillen entgegengesetzten Kollektorfläche Metallschicht (1g) des Kollektors wird durch Bearbeiten weggenommen; dann wird der somit vorbereitete Kollektor zwischen den zweien Teilen (7-8) einer Form eingebracht, in welche ein Harz (10) zum Umhüllen des mit den zugehörigen Windungen und mit einer Innenfassung (9) versehenen Kollektors eingegossen wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Isolierfolien (2) nach einem bestimmten Profil zugeschnitten wird, derart, dass gewisse Teile (2a, 2b, 2c) der seitlichen Scharfkanten aus dem Querschnitt profil des Kollektors hinausragen, während die Oberscharfkante des Kollektors und andere Teile (2d, 2e) der einen der genannten seitlichen Scharfkanten zurückspringend sind, wobei dieser Arbeitsvorgang erfolgt, wann die genannten Folien (2) in die Rillen eingebracht werden.
3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der mit seinen Isolierfolien (2) versehene Kollektor )1) am Eingang der Bohrung (3a) des Werkzeugs (3) gebracht wird, derer Oberduchmesser (d1) dem Durchmesser des Kollektors etwa entspricht, der durch einen Dorn (4) in Richtung des unteren Durchmessers (d1) der Bohrung geschoben wird, der kleiner als der Durchmesser (d1) ist, damit die Lamellen (1f) des Kollektors gegen die Isolierfolien (2) durch diametrales Zusammendrücken eingezogen werden.
4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, dass der Kollektor bei Beendigung der Bewegung des Doms' (4) in dem unter dem Werkzeug (3) befindlichen, zweiten werkzeug (5) völlig eingeführt und gehalten ist, dessen Bohrungsdurchmesser (d3) gleich dem Durchmesser (d2) des Werkzeugs (3) ist, wobei das Werkzeug (5) und der Kollektor (1) auf eine Bearbeitungsdrehbank zum Abrichten der unter den Rillen (1 e) befindlichen Fläche des Kollektors (1) bis zum Spanabheben der Metallschichten (1g) und zum Durchführen weiterer Bearbeitung wie eine Vertiefung (1h) seitens der Rillen (1e) positioniert werden.
5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die so ausgeführten Werkzeug (5) und Kollektor (1) über die Bohrung (7a) eines Werkzeugs (7) zentriert werden, das den Unterteil einer Form bildet, wobei der Kollektor durch den Dorn (4) aus dem Werkzeug (5) ausgeworfen wird.
6. Verfahren nach Anspruch 5, dadurch gekennzeichnet, dass der Kollektor (1) nach oder vor dessen Einrichten in dem Werzeug (7) einen Versteifungsring (6) aufnimmt, der auf den einen der Teile der aus den Isolierfolien (2) hinausragenden Scharfkanten (2a) ohne jede elektrische Berührung mit dem Kollektor abstützend angeordnet wird.
EP81420069A 1980-05-09 1981-05-07 Verfahren zur Herstellung eines Stirnkollektors für elektrische Motoren Expired EP0040163B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8011151 1980-05-09
FR8011151A FR2482375A1 (fr) 1980-05-09 1980-05-09 Procede et moyens de fabrication de collecteurs frontaux de moteurs electriques

Publications (2)

Publication Number Publication Date
EP0040163A1 EP0040163A1 (de) 1981-11-18
EP0040163B1 true EP0040163B1 (de) 1985-02-13

Family

ID=9242118

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81420069A Expired EP0040163B1 (de) 1980-05-09 1981-05-07 Verfahren zur Herstellung eines Stirnkollektors für elektrische Motoren

Country Status (8)

Country Link
US (1) US4439913A (de)
EP (1) EP0040163B1 (de)
JP (1) JPS573556A (de)
CA (1) CA1171254A (de)
DE (2) DE40163T1 (de)
ES (1) ES8203168A1 (de)
FR (1) FR2482375A1 (de)
SU (1) SU1168105A3 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4663834A (en) * 1982-12-29 1987-05-12 General Electric Company Method for making inverted molded commutators
IT1169133B (it) * 1983-11-23 1987-05-27 Honeywell Inf Systems Gruppo armature per testina stampante a mosaico e relativo metodo di produzione
AU594022B2 (en) * 1984-07-24 1990-03-01 Rudolf Hanselmann Commutator reinforcement system
US5491373A (en) * 1994-09-07 1996-02-13 The Morgan Crucible Company Plc Commutators
US6652360B2 (en) * 2001-05-24 2003-11-25 Cutsforth Products, Inc. Method and apparatus for creating a groove in a collector ring of an electrical device
US8424187B2 (en) 2005-04-22 2013-04-23 Infranor Holding Sa Method of terminating the stator winding of an electric motor
DE102005028791A1 (de) * 2005-06-16 2006-12-28 Kautt & Bux Gmbh Plankommutator und Verfahren zur Herstellung eines Plankommutators
CN101488636B (zh) * 2009-02-19 2010-09-29 宁波华瑞电器有限公司 一种换向器制造方法
CN101488635B (zh) * 2009-02-19 2010-10-20 宁波华瑞电器有限公司 一种换向器制造方法
US10537863B2 (en) 2015-12-31 2020-01-21 United States Gypsum Company Constrictor valve with webbing, cementitious slurry mixing and dispensing assembly, and method for making cementitious product
CN113783065A (zh) * 2021-09-01 2021-12-10 梁瑜 一种换向器自动插片机
CN117013337B (zh) * 2023-05-22 2024-03-22 中核检修有限公司 一种电机换向器检测组装设备

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR458088A (fr) * 1912-05-21 1913-10-02 The United States Light & Heating Company Perfectionnements apportés aux commutateurs
DE381719C (de) * 1920-04-24 1923-09-24 Toledo Standard Commutator Com Stromwender mit metallischer Tragbuechse fuer elektrische Maschinen
NL48368C (de) * 1933-08-22
FR1011902A (fr) * 1949-04-15 1952-07-01 Mach Electrostatiques Sa Des Collecteur ou organe analogue pour machine à très haute tension
US3293694A (en) * 1962-03-05 1966-12-27 Dayton Prec Corp Mold apparatus for making subflush commutators
FR2171540A6 (de) * 1972-02-04 1973-09-21 Sitem
GB1446595A (en) * 1973-01-25 1976-08-18 Lucas Electrical Ltd Method of manufacturing face commutators for dynamo electric machines

Also Published As

Publication number Publication date
ES502070A0 (es) 1982-02-16
DE40163T1 (de) 1983-03-17
EP0040163A1 (de) 1981-11-18
JPH0350498B2 (de) 1991-08-01
CA1171254A (fr) 1984-07-24
SU1168105A3 (ru) 1985-07-15
US4439913A (en) 1984-04-03
FR2482375B1 (de) 1983-04-29
JPS573556A (en) 1982-01-09
FR2482375A1 (fr) 1981-11-13
DE3168867D1 (en) 1985-03-28
ES8203168A1 (es) 1982-02-16

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