US3866847A - Apparatus for winding coils for stators of electrical machines - Google Patents

Apparatus for winding coils for stators of electrical machines Download PDF

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Publication number
US3866847A
US3866847A US314964A US31496472A US3866847A US 3866847 A US3866847 A US 3866847A US 314964 A US314964 A US 314964A US 31496472 A US31496472 A US 31496472A US 3866847 A US3866847 A US 3866847A
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United States
Prior art keywords
rod
former
stop
winding
portions
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Expired - Lifetime
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US314964A
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English (en)
Inventor
Hans Droll
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Statomat Globe Maschinenfabrik GmbH
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Individual
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Priority claimed from DE19712162145 external-priority patent/DE2162145C3/de
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Assigned to STATOMAT-GLOBE MASCHINENFABRIK GMBH reassignment STATOMAT-GLOBE MASCHINENFABRIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: DROLL, HANS
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    • 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
    • H02K15/04—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of windings, prior to mounting into machines
    • H02K15/0435—Wound windings

Definitions

  • An apparatus for winding coils for stators of electrical machines having a former on which the coils are wound and which is made up of at least two portions movable radially towards and away from each other to v vary the cross-section of the former between a large cross-section winding position, a small cross-section drawing-off position, and at least one intermediate cross-section winding position.
  • a rod extending axially between the former portions is connected to these 1 portions by a parallel linkage such that axial movement of the rod causes radial movement of the former portions.
  • Stop members are movable into the path of axial movement of the rod and its associated parts to stop the rod at the intermediate position.
  • This invention relates to the winding of coils for stators of electrical machines, and in particular, it relates to such an apparatus wherein the cross-section of the former can be varied between different winding positions as well as a smaller drawing-off position.
  • the coils, according to the customary process are wound on formers and then drawn into the stator.
  • the same cross-section of the former is used for all coils of a certain stator which extend over the same angular area of the stator.
  • Said former cross-section must be dimensioned such that the coils lyingfarthest outside in the stator can be drawn in without trouble and can be brought into their predetermined positions.
  • the same cross-section is then too large for the radially inside coils since the so-called winding heads projecting beyond the front surfaces of the packet of metal plates of the stator are larger than in the case of the outside coils.
  • this could be taken into consideration by the fact that the outside coils are wound on larger formers than the inside coils. If however, one operates with only one single former, thewinding heads of variable sizes cannot be avoided with the previously known devices.
  • the former can be adjusted mechanically in several winding positions with variable cross-sections,as a result of which one will have the advantage that as a result of the variable widths of the coils obtained, after drawing the coils into the stator, the windingheads are better arranged and do not have to be formed with a major expenditure of power.
  • the wound stators are lighter, and because of the flatter dimensions of the'housings the housing can also be kept smaller. All advantages are particularly applicable for larger stators with relatively deep grooves of, forexample, 30 mm and more.
  • the insignificant effects of the variable coil diameters on the electric and magnetic characteristics of the stator are practically of no consequence, because all poles or phases are equally affected.
  • the adjustment of the former for a majority of variable winding cross-sections can be realized in different ways.
  • he former is divided in one or more axial planes and the portions of the former are movable along radial guides by means of levers articulated to an axially movable push rod, whereby the various winding positions are determined by several stops, movable selectively in the action position and cooperating with the push rod. It will of course be understood that besides this preferred arrangement 7 a large number of possibilities will be apparent to one positions can also be used.
  • FIG. 1 is a side elevational view of a coil winding apparatus according to the present invention.
  • FIGS. 2a, 2b, 2c and 2d are longitudinal sectional views through a portion of the apparatus of FIG. 1, and showing this apparatus in four different operating positions.
  • FIG. 3- is a partial longitudinal sectional view similar to FIGS. 2a-2d but greatly enlarged and showing only a portion thereof, this figure also being taken along line III-III of FIG. 4.
  • FIG. 4 is a simplified schematic end elevational view of a portion of FIG. 3 as viewed in the direction of the arrow IV of FIG. 3.
  • the winding apparatus shown in a simplified manner in FIG. 1 has a former 12 mounted rotatably on the machine frame 10, which former obtains its rotating drive from an electric motor 14 via a transmission 16.
  • the winding wire is supplied to the rotating former 12 by a wire guide, designated in its entirety by the numeral 18, for the purpose of winding of coils.
  • the former 12 which can comprise two or more portions, is expanded, and the parts of the former are then moved closer to each other so that the wound coils which now rest loosely on the former can be taken off easily.
  • each former portion is screwed to a slide member 20 by means of T- shaped grooves, which slide members are guided by means of a rod guide 22 on a face plate 24.
  • Each former portion can be adjusted radially by means of an axially movable push rod 26 which is connected to the slide members 20 by links 28 and to the former portions by links 30, the links 28 and 30 associated with each former portion constituting a parallel linkage arrangement.
  • FIG. 1 In the case of longer formers, as FIG.
  • additional links 30 can be articulated'to the portions of the former or with supporting means connected with them as well as with the push rod.26 for the support and parallel guidance of said portions of the for-
  • the face plate 24 is connected firmly by way of a flange 32 with the driving shaft 34 (see FIGS. 2a-2d) which is driven by the motor 14 by way of the transmis sion 16.
  • the front end of the push rod 26, visible in FIG. 1, with the links 28 and 30, rotates with the face plate 24 and the former 12.
  • the driving shaft 34 is developed as a hollow shaft.
  • the transfer of torque from the transmission 16 to the shaft 34 has been indicated only diagrammatically at 36.
  • the push rod 26 extends through the driving shaft 34 and is mounted in the latter. It projects to the rear from the driving shaft 34 and from the machine frame 10.
  • a support comprising spacer bolts 38 and a carrying plate 40 is attached on the rear side of the frame and carries a power cylinder 42, by means of the piston rod 44 of which the push rod 26 can be axially shifted.
  • the slide members with former portions 12 are moved radially via the links 28 and 30.
  • the push rod 26 is connected to a piston rod 44 so as to be moved axially thereby but so that the push rod 26 can rotate relative thereto.
  • This coupling includes a bushing 46 fixed to the piston rod 44 by suitable means such as screws.
  • the coupling between the piston rod 44 and the push rod 26 includes an axial thrust bearing wherein a washer 52 is fixedly held onto the end of push rod 26 by a nut 53. Spaced from the washer 52 are a pair of flange members 48 and 50 which are fixedly connected to the bushing 46 and the piston rod 44, respectively.
  • the flanges 48 and 50 are separated from the washer 52 by suitable roller bearings 55 and 57, respectively.
  • the righthand portion of bushing 46 forms the surface of an abutment member, the purpose of which will be described below.
  • a carrying plate 56 is attached by means of screws 54.
  • the push rod 26 is guided through a central bore of the plate 56.
  • the lat ter constitutes a final stop for the abutment member surface of bushing 46, whenever the piston rod 44 is completely extended to the right.
  • the links 28 and 30 assume the radial position shown in FIG. 2a, and the former 12 is spread to a maximum, so that the largest possible cross-section for the coil will result during winding.
  • the narrowest position of the former which is shown in FIG. 2b, in which the wound coil or group of coils is taken off the former, is determined by the abutment of the bushing 46 against the carrying plate 40 whenever the piston rod 44 is pulled back completely to the left.
  • Winding devices having inner and outer positions are previously known. As can be seen, there is in this case only one winding position in which the bushing 40 abuts the plate 56 and the former 12 is expanded.
  • the coils or groups of coils wound within the position of the former are large enough in cross-section to be disposed radially outside in the grooves of a stator.
  • one or more movable stops in the case of the present embodiment two differently dimensioned stops 58 and 60are attached to the plate 56. These stops are shiftable radially, guided between the plate 56 and a plate 64, and connected with the former by way of a bushing or an annular flange 62.
  • One power cylinder 66 provides the motive power for each stop, the piston rod of which power cylinder is connected with the pertinent stop 58 M60 by wayof a T-groove connection.
  • FIG. 2c and 2d show these two intermediate positions, wherein the former 12 is in a smaller cross-section of the coil than in the fully expanded position of FIG. 2a, but in a larger cross-section of the coil than in FIG. 2b.
  • the former is also moved into its smallest position according to FIG. 2b by the power cylinder 42 pulling back the bushing 46 from the stop 58 and 60 to its rear abutment against the carrier plate 40.
  • stops 58 and 60 it is not essential to the function of the stops 58 and 60 in which angular position they are disposed about the axis of rod 26 in relation to one another.
  • the stops can be attached, as shown in FIGS. 2a-d, opposite in relation to the push rod 26. But they can also lie at a right angle or some other angle in relation to one another as shown in FIG. 4.
  • the stops 58 and 60 radially inside are cut out essentially in the shape of a semicircle so that they encircle the push rod 26 in their radially moved operating position.
  • An apparatus for winding coils for stators of electrical machines comprising: a frame, a hollow shaft rotatably mounted in the frame, a face plate means fixed to the hollow shaft and extending radially outwardly therefrom, means formed on said face plate for providing at least two radially extending guide surfaces, a sliding member on each guide surface, a former portion fixedly mounted on each sliding member to move radially therewith, a connecting means connecting each guide surface to its respective sliding member, each said connecting means including means for supporting its respective sliding member on its respective guide surface so as to form a driving connection from said shaft via said face plate and said connecting means to said sliding member and to its respective former, said connecting means further including means for mounting its respective sliding member so as to constrain the sliding member to move radially only in a plane perpendicular to the axis of rotation of the shaft, the former formed by the former protions thus receiving coil windings thereon about its periphery and being movable by said radial movement in said plane to at least two winding crosssections and
  • said links comprising a pair of parallel links for each former portion, each pair pivotably connected at one of their ends to the rod and at the other of their ends to the outwardly slidable former portion or its slidable member.
  • said power means for moving the rod axially between a first end position at which the former portions are drawn towards each other in said drawing-off position, and a second end position at which the former portions are moved away from each other to the largest of said winding positions, and said stop means including means for stopping the rod be- 7 tween said end positions at at least one other winding position.
  • said power means being a reciprocating power piston and cylinder unit
  • said rod mounting means including means connecting the rod to the piston and cylinder unit for with the rod, and at least one stop member movable into and out of the path of the abutment member to stop the rod between said end positions.
  • An apparatus to claim 5, including a pair of stop members, each movable into and out of the path of the abutment member from a different direction and each capable of stopping the abutment member and hence the rod at a different'winding position between said end positions.
  • each said link comprising a pair of parallel links for each former portion, each pair pivotably connected at one of their ends to the rod and to the other of their ends to the outwardly slidable former portion or its slidable member.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
US314964A 1971-12-15 1972-12-14 Apparatus for winding coils for stators of electrical machines Expired - Lifetime US3866847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712162145 DE2162145C3 (de) 1971-12-15 Vorrichtung zum Wickeln von Spulen für Statoren elektrischer Maschinen

Publications (1)

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US3866847A true US3866847A (en) 1975-02-18

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ID=5828015

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US314964A Expired - Lifetime US3866847A (en) 1971-12-15 1972-12-14 Apparatus for winding coils for stators of electrical machines

Country Status (7)

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US (1) US3866847A (ja)
JP (1) JPS5649064B2 (ja)
BE (1) BE792596A (ja)
FR (1) FR2163742B3 (ja)
GB (1) GB1419974A (ja)
IT (1) IT969278B (ja)
NL (1) NL7216730A (ja)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977444A (en) * 1974-03-18 1976-08-31 General Electric Company Apparatus and method for developing wound coils for electromagnetic devices and for interdependently conditioning winding apparatus and coil placing apparatus
US4061289A (en) * 1975-04-16 1977-12-06 Hitachi, Ltd. Winding machine for electric inductive apparatus
US4554731A (en) * 1983-11-07 1985-11-26 The United States Of America As Represented By The United States Department Of Energy Method and apparatus for making superconductive magnet coils
US4649308A (en) * 1984-07-20 1987-03-10 Robert Bosch Gmbh Electric motor template-wound coil
US5492154A (en) * 1993-01-14 1996-02-20 Napierski; Reinhard Method and apparatus for producing a wave winding
US5864940A (en) * 1994-12-02 1999-02-02 Matsushita Electric Industrial Co., Ltd Method for producing a winding of a stator coil

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973601A (en) * 1975-03-05 1976-08-10 General Electric Company Apparatus and method for use in developing wound coils
JPS61123472U (ja) * 1985-01-19 1986-08-04
CN112072874B (zh) * 2020-09-04 2021-12-24 常州金康精工机械股份有限公司 一种底绕式定子缠线机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2143315A (en) * 1937-03-04 1939-01-10 Hanson Bertrand Winding apparatus
US2514251A (en) * 1945-03-12 1950-07-04 Lyster L Brunson Coil-winding head
US2558621A (en) * 1948-04-05 1951-06-26 Frank H Martilla Coil winding device
US2809674A (en) * 1954-09-14 1957-10-15 John W Ward Adjustable coil-winding core
US2989263A (en) * 1956-09-28 1961-06-20 Schloemann Ag Drum for the winding on and winding off of cold rolled bands
US3166104A (en) * 1958-10-01 1965-01-19 Gen Electric Coil winding machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4123769Y1 (ja) * 1964-03-12 1966-12-03

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2143315A (en) * 1937-03-04 1939-01-10 Hanson Bertrand Winding apparatus
US2514251A (en) * 1945-03-12 1950-07-04 Lyster L Brunson Coil-winding head
US2558621A (en) * 1948-04-05 1951-06-26 Frank H Martilla Coil winding device
US2809674A (en) * 1954-09-14 1957-10-15 John W Ward Adjustable coil-winding core
US2989263A (en) * 1956-09-28 1961-06-20 Schloemann Ag Drum for the winding on and winding off of cold rolled bands
US3166104A (en) * 1958-10-01 1965-01-19 Gen Electric Coil winding machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3977444A (en) * 1974-03-18 1976-08-31 General Electric Company Apparatus and method for developing wound coils for electromagnetic devices and for interdependently conditioning winding apparatus and coil placing apparatus
US4061289A (en) * 1975-04-16 1977-12-06 Hitachi, Ltd. Winding machine for electric inductive apparatus
US4554731A (en) * 1983-11-07 1985-11-26 The United States Of America As Represented By The United States Department Of Energy Method and apparatus for making superconductive magnet coils
US4649308A (en) * 1984-07-20 1987-03-10 Robert Bosch Gmbh Electric motor template-wound coil
US5492154A (en) * 1993-01-14 1996-02-20 Napierski; Reinhard Method and apparatus for producing a wave winding
US5864940A (en) * 1994-12-02 1999-02-02 Matsushita Electric Industrial Co., Ltd Method for producing a winding of a stator coil
US6009618A (en) * 1994-12-02 2000-01-04 Matsushita Electric Industrial Co., Ltd. Apparatus for producing winding of stator coil

Also Published As

Publication number Publication date
IT969278B (it) 1974-03-30
DE2162145A1 (de) 1973-06-20
BE792596A (fr) 1973-03-30
JPS4865401A (ja) 1973-09-08
FR2163742B3 (ja) 1975-12-12
DE2162145B2 (de) 1974-06-20
FR2163742A1 (ja) 1973-07-27
JPS5649064B2 (ja) 1981-11-19
GB1419974A (en) 1975-12-31
NL7216730A (ja) 1973-06-19

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AS Assignment

Owner name: STATOMAT-GLOBE MASCHINENFABRIK GMBH, AN DER ROSENH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:DROLL, HANS;REEL/FRAME:004862/0938

Effective date: 19880113

Owner name: STATOMAT-GLOBE MASCHINENFABRIK GMBH,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DROLL, HANS;REEL/FRAME:004862/0938

Effective date: 19880113