WO2024032848A1 - Mâchoire de guidage - Google Patents

Mâchoire de guidage Download PDF

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Publication number
WO2024032848A1
WO2024032848A1 PCT/DE2023/100569 DE2023100569W WO2024032848A1 WO 2024032848 A1 WO2024032848 A1 WO 2024032848A1 DE 2023100569 W DE2023100569 W DE 2023100569W WO 2024032848 A1 WO2024032848 A1 WO 2024032848A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide
wires
jaw
guide grooves
winding
Prior art date
Application number
PCT/DE2023/100569
Other languages
German (de)
English (en)
Inventor
Sebastian REISING
Bernd HAMMEL
Vojtech HIRNICH
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2024032848A1 publication Critical patent/WO2024032848A1/fr

Links

Classifications

    • 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
    • H02K15/0478—Wave windings, undulated windings

Definitions

  • the invention relates to a guide jaw for guiding a plurality of wires on a winding template for producing wave windings, the guide jaw having a number of first guide grooves which are arranged parallel to one another.
  • the present invention also relates to a winding device with such guide jaws and a method for correcting forming errors of the wave windings.
  • a winding device with guide jaws is described, for example, in DE 102015 120661 A1.
  • wires are not placed in the geometrically desired position on the winding template due to frictional forces and tensile forces acting on the wires.
  • the guide grooves of the guide jaws cannot be extended as desired, since if the wires are deformed in the area of the straight sections before the first lowering, damage could already occur here.
  • the object of the present invention is to create guide jaws with which the problem of deformations between the winding heads and the straight wire sections can be better managed.
  • the object is achieved by one of the types mentioned at the outset, in which the guide jaw in the area of the guide grooves has a first part movable guide element with a corresponding number of second guide grooves, the guide element being movable relative to the first part of the guide jaw, while the Wires are held in the first and/or second guide grooves so that the length increases the wire guide is increased compared to the length of the first guide grooves or second guide grooves alone.
  • the solution according to the invention offers the advantage that the guide jaw with a shortened guide length can first be placed on the wires and then, by moving the second guide grooves in the direction of the winding heads, not only can the length of the guide be increased and thus its stability improved, but also actively the transition area between the straight sections and the winding heads can be reshaped without the need for a separate step that is separate from the actual process.
  • the guide element with the second guide grooves leads ahead of the first guide grooves and is movable relative to the first part of the guide jaw perpendicular to the direction of extension of the wires.
  • the second guide grooves can first be engaged in a more central area of the wires, in which it is ensured that the wires there have a straight course, so that there is no collision of the edges of the grooves with those in the when engaging
  • wires can come with a rectangular cross-section.
  • the second guide grooves then move towards the winding heads, so that the first guide grooves can move into the more central area of the wires.
  • the movement sequence of the second guide element can be effected by active adjusting elements, but it can also be achieved by corresponding guide elements between the guide element and the first part, which utilizes the already provided feed movement of the guide jaw in the direction of the winding sword, which serves as a quasi stop.
  • an incline is provided between the guide element and the first part of the guide jaw, which, when the guide jaw is lowered in the direction of the wires, guides the guide element in a direction to the first part, which is a component parallel to the first guide grooves and a component perpendicular to the wires.
  • the movement of the guide element takes place against the restoring force of at least one spring element when the guide jaw is lowered.
  • the first guide grooves are each divided into two groove parts with a central recess.
  • guide elements are provided on both sides of the first guide grooves.
  • a guide element is provided on one of the two groove parts or guide elements are provided on both groove parts.
  • the guide jaw described above can be integrated into the movement sequence of a winding device known per se for winding flat wave windings with a wire feed for a plurality of wires, a sword-shaped winding template and guide jaws that can be lowered in the direction of the winding template for guiding the wires during the winding process, wherein the guide jaws of the type described above have in the area of the guide grooves a guide element which is movable to a first part and has a corresponding number of second guide grooves, the guide element being movable parallel to the wires while the wires are held in the first and/or second guide grooves, so that the length of the wire guide increases compared to the length of the first guide grooves.
  • the advantage of the guide jaws according to the invention is particularly evident in such a winding device because the lowering process of the guide jaw, which is already structurally possible, is now used to reshape the wires and the length the guide over the entire straight wire area between the winding heads.
  • a further advantage in the process results from the fact that the surface of the winding template can serve as a stop for the guide jaw, so that the desired sequence of movements is possible without additional control elements.
  • This sequence of movements is then implemented in the winding device in such a way that the guide element with its second guide grooves leads ahead of the first guide grooves and is movable relative to the first part of the guide jaw perpendicular to the direction of extension of the wires, an incline being provided between the guide element and the first part of the guide jaw is which, when the guide jaw is lowered onto the winding template, guides the guide element in a direction to the first part which has a component parallel to the first guide grooves and a component perpendicular to the wires.
  • the present invention also relates to a method for correcting deformations in the area of straight wire sections of wires in flat wave windings during winding on a winding template with guide jaws that guide the wires in the desired positions, a guide element movably arranged on the guide jaw with second guide grooves to first fixed guide grooves is moved parallel to the wires while the wires are held in the first and / or second guide grooves in such a way that the length of the wire guide is increased compared to the length of the first guide grooves and the straight wire section is straightened over this length in the case of deformed wires becomes.
  • the advantage of this method lies in the fact that it can be integrated into existing processes without any loss of time and also improves the process reliability of the known methods.
  • Fig. 1 is a schematic representation of the problem of wire misalignment existing in known winding processes
  • Fig. 2 is a partial view of a winding device according to the invention
  • Fig. 3 is a side view of the winding device according to Fig. 2.
  • Fig. 1 schematically illustrates the problem of shape deviations of the wound wires 100 of a wave winding 104 wound on a flat winding template 110 that occurs when winding wave windings on a flat template. Due to frictional forces and tensile forces acting on the wires when moving a wire feed 114 around the distance X, a deformation takes place in the transition area between the winding heads 106 and the straight wire sections 108 lying between them. In this case, an actual geometry IG can be formed according to the direction of force, which deviates from a target geometry SG also shown in FIG. 1.
  • a kink 112 of the wire 100 moves by a distance Y in the direction of the center of the template, so that the middle, straight wire section 108 is shortened compared to the target geometry.
  • This can lead to significant problems with wire handling in the further process of producing a stator and in particular when pulling the wave winding 104 into the slots of the stator, whereby in addition to the difficulty of pulling in there is also the risk of damage to the wires.
  • FIG. 2 and 3 show parts of a winding device 10 with guide jaws 12, 14 on both sides of a flat winding template 16, which has a central recess 18.
  • the guide jaws are also not designed to be continuous over the entire length of the middle straight wire sections 108 (not shown in FIG. 2), but rather have two groove parts 20, 22 at the ends of the straight wire sections 108 to be guided, the first guide grooves 23 for the wires of the wave winding.
  • the guide jaws 12, 14 above and below the winding template 16 are otherwise identical, which is why their individual parts are also provided with identical reference numbers.
  • the guide jaws 12, 14 are each designed with a movable guide element 24 that is movably mounted along a guide bevel 26 on a first part 28 of the guide jaws. Compression springs 30 are provided to move the guide elements 24 towards their rest position protruding beyond the guide groove parts 20, 22.
  • the guide elements 24 At their end facing the wave winding or the winding template 16, the guide elements 24 have second guide grooves 32, which lie in the same vertical plane as the first guide grooves 23.
  • Fig. 2 shows an oblique view in which both guide jaws 12, 14 are in a rest position with guide elements 24 extended. In Fig. 3, this state is shown in the winding template 12 above the winding template 16, while the guide jaw 14 is located below the winding template in a guide position with a spring-loaded guide element 24. In this position, the middle straight wire sections of the wave winding 104 are guided both by the first guide grooves 23 of the first parts 28 of the guide jaws 12, 14 and by the second guide grooves 32, which are then in alignment with them.
  • the guide jaw 12 provided there is not yet in engagement with the wave winding 104.
  • the spring-out guide element 24 can be clearly seen with its second guide grooves projecting beyond the first guide grooves 23 in the direction of the winding template 16 in this position.
  • the guide jaw 12 is lowered and transferred to the state shown below the winding template 16 in FIG. During the movement, the second guide grooves 32 initially engage between the middle wire sections 108. Until the time at which the guide element 24 reaches the winding template 16 and this subsequently acts as a stop, the first part 28 of the guide jaw 12 and the guide element 24 move together without their relative position to one another changing.
  • the guide bevel 26 After reaching the winding template 16, which acts as a stop, the guide bevel 26 causes the guide element 24 to move outwards.
  • the second guide grooves 32 therefore move outwards in engagement with the wires, whereby the wire may be reshaped and the actual geometry is transformed into the target geometry.
  • the fact that the second guide grooves 32 initially move further into the center also prevents the edges of the guide grooves from colliding with the wires that deviate from the ideal shape, because the engagement takes place in an area in which the wire lies securely straight. Under the further delivery movement of the guide jaw 12 with the guide element 24 located in the vertical stop on the winding template, this is moved exclusively outwards in the direction of the winding heads 106, while the first guide grooves 23 engage in the middle wire sections 108.
  • the second guide grooves 32 give way to the side of the first guide grooves 23 and are aligned with the first guide grooves 23 at the end of the delivery process as an extension of the first guide grooves 23.
  • subsequent corrections of the actual geometry in the direction of the target geometry are possible.
  • the invention is not limited to one of the previously described embodiments, but can be modified in many ways.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Une mâchoire de guidage sert à guider une pluralité de fils (100) sur un gabarit (16) afin de produire des enroulements ondulés (104), la mâchoire de guidage (12, 14) présentant un certain nombre de premières fentes de guidage (23) qui sont ménagées parallèlement les unes aux autres. Afin d'améliorer le guidage et de pouvoir effectuer une correction de forme, il est proposé que la mâchoire de guidage (12, 14) présente, dans la zone des fentes de guidage (23), un élément de guidage (24) mobile par rapport à une première partie (28) et présentant un nombre correspondant de secondes fentes de guidage (32), l'élément de guidage (24) étant mobile par rapport à la première partie (28) de la mâchoire de guidage, tandis que les fils (100) sont maintenus dans les premières et/ou secondes fentes de guidage (23, 32), de telle sorte que la longueur du guidage de fil soit augmentée par rapport à la longueur des premières fentes de guidage (23) ou des secondes fentes de guidage (32) seules. La présente demande concerne également un dispositif d'enroulement équipé de mâchoires de guidage correspondantes, et un procédé de mise en œuvre du procédé avec redressement de toutes déformations de sections de fil centrales qui sont raccourcies dans l'état actuel.
PCT/DE2023/100569 2022-08-10 2023-08-02 Mâchoire de guidage WO2024032848A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022120095.7 2022-08-10
DE102022120095.7A DE102022120095A1 (de) 2022-08-10 2022-08-10 Führungsbacke

Publications (1)

Publication Number Publication Date
WO2024032848A1 true WO2024032848A1 (fr) 2024-02-15

Family

ID=87571263

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2023/100569 WO2024032848A1 (fr) 2022-08-10 2023-08-02 Mâchoire de guidage

Country Status (2)

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DE (1) DE102022120095A1 (fr)
WO (1) WO2024032848A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035084A1 (de) * 2004-07-20 2006-02-16 Elmotec Statomat Vertriebs Gmbh Verfahren und Vorrichtung zur Herstellung einer Spulenwicklung für Statoren oder Rotoren elektrischer Maschinen sowie damit herzustellender Stator oder Rotor
US20090096311A1 (en) * 2004-12-20 2009-04-16 Valeo Equipements Electriques Moteur Method for making stators of polyphase rotating electrical machines, stators obtained by said method
DE102015120661A1 (de) 2015-11-27 2017-06-01 Elmotec Statomat Vertriebs Gmbh Verfahren zur Herstellung einer Spulenwicklung zum Einlegen in radial offene Nuten von Statoren oder Rotoren von Elektromaschinen
EP3427372A1 (fr) * 2016-03-08 2019-01-16 Grob-Werke GmbH & Co. KG Procédé de fabrication d'un stator
DE102017120559A1 (de) * 2017-07-28 2019-01-31 Grob-Werke Gmbh & Co. Kg Verfahren und Vorrichtung zum Wickeln einer Wellenwickelmatte sowie damit herstellbare Wellenwickelmatte
CN210985894U (zh) * 2020-01-17 2020-07-10 福建闽光电机制造有限公司 自动化生产定子常规线装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7533154U (de) 1975-10-18 1976-04-08 Fico Fischer & Co Maschinenbau Gmbh, 7530 Pforzheim Fuehrungsvorrichtung fuer draehte und baender
FI90930C (fi) 1985-10-15 1994-04-11 Siemens Ag Menetelmä ja laite vierekkäin ja/tai päällekkäin sijaitsevien, sähköisesti eristettyjen, tankomaisten johtimien taivuttamiseksi
DE102012102057A1 (de) 2012-03-12 2013-09-12 Elcede Gmbh Biegeeinheit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004035084A1 (de) * 2004-07-20 2006-02-16 Elmotec Statomat Vertriebs Gmbh Verfahren und Vorrichtung zur Herstellung einer Spulenwicklung für Statoren oder Rotoren elektrischer Maschinen sowie damit herzustellender Stator oder Rotor
US20090096311A1 (en) * 2004-12-20 2009-04-16 Valeo Equipements Electriques Moteur Method for making stators of polyphase rotating electrical machines, stators obtained by said method
DE102015120661A1 (de) 2015-11-27 2017-06-01 Elmotec Statomat Vertriebs Gmbh Verfahren zur Herstellung einer Spulenwicklung zum Einlegen in radial offene Nuten von Statoren oder Rotoren von Elektromaschinen
EP3427372A1 (fr) * 2016-03-08 2019-01-16 Grob-Werke GmbH & Co. KG Procédé de fabrication d'un stator
DE102017120559A1 (de) * 2017-07-28 2019-01-31 Grob-Werke Gmbh & Co. Kg Verfahren und Vorrichtung zum Wickeln einer Wellenwickelmatte sowie damit herstellbare Wellenwickelmatte
CN210985894U (zh) * 2020-01-17 2020-07-10 福建闽光电机制造有限公司 自动化生产定子常规线装置

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Publication number Publication date
DE102022120095A1 (de) 2024-02-15

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