EP4256681A1 - Dispositif et procédé de préhension, de maintien et de manipulation d'au moins un agencement circulaire de pièces conductrices - Google Patents

Dispositif et procédé de préhension, de maintien et de manipulation d'au moins un agencement circulaire de pièces conductrices

Info

Publication number
EP4256681A1
EP4256681A1 EP22818822.3A EP22818822A EP4256681A1 EP 4256681 A1 EP4256681 A1 EP 4256681A1 EP 22818822 A EP22818822 A EP 22818822A EP 4256681 A1 EP4256681 A1 EP 4256681A1
Authority
EP
European Patent Office
Prior art keywords
units
legs
clamping
gripping
radial direction
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.)
Withdrawn
Application number
EP22818822.3A
Other languages
German (de)
English (en)
Inventor
Bernd FRIED
Dipl.-Ing. HÜTTNER (FH) Theodor
Sebastian SCHEEFF
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.)
Gehring Technologies GmbH and Co KG
Original Assignee
Gehring Technologies GmbH and 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 Gehring Technologies GmbH and Co KG filed Critical Gehring Technologies GmbH and Co KG
Publication of EP4256681A1 publication Critical patent/EP4256681A1/fr
Withdrawn legal-status Critical Current

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
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/064—Windings consisting of separate segments, e.g. hairpin windings
    • 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
    • H02K15/0414—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils
    • H02K15/0421—Windings consisting of separate elements, e.g. bars, hairpins, segments, half coils consisting of single conductors, e.g. hairpins
    • 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
    • H02K15/06—Embedding prefabricated windings in machines
    • H02K15/062—Windings in slots; salient pole windings
    • H02K15/065—Windings consisting of complete sections, e.g. coils, waves
    • H02K15/067—Windings consisting of complete sections, e.g. coils, waves inserted in parallel to the axis of the slots or inter-polar channels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/09—Machines characterised by the presence of elements which are subject to variation, e.g. adjustable bearings, reconfigurable windings, variable pitch ventilators

Definitions

  • the invention relates to a device for gripping, holding and handling at least one circular arrangement of conductor sections, with features of claim 1, and a method for gripping, holding and handling at least one circular arrangement of conductor sections with features of the independent claim .
  • a stator is equipped with a circular arrangement of conductor pieces. These are welded together in a later process and thus form the respective stator windings.
  • the conductor pieces can be assembled into a circular arrangement before being inserted into the stator and can be gripped, held and handled in the corresponding circular arrangement by means of a device.
  • Devices of this type for gripping circular arrangements of conductor sections are known from the prior art.
  • DE 10 2017 123 670 A1 discloses a gripping device for gripping and holding an arrangement of prealigned coil elements for a plug-in coil of an electrical machine.
  • a disadvantage of the devices known in the prior art is that a gripping fen different arrangements, for example. with a different diameter, cannot be implemented with the same device or this requires complex conversion measures of the device.
  • the conductor pieces can be designed as so-called hairpins.
  • the invention enables various circular arrangements of conductor sections to be gripped, held and handled quickly and without conversion measures using the same device.
  • a hairpin in the present sense is a conductor piece with two elongate legs that are connected via a connecting section. Hairpins are often essentially U-shaped.
  • the connecting section also called the connecting leg
  • a conductor piece can have two elongate legs. However, a conductor piece can also have only one elongate leg.
  • Such so-called special pins are usually used in addition to hairpins (conductor pieces with two legs) in the stator core.
  • Such special pins typically have an elongated shape.
  • the conductor sections can preferably be designed with a rectangular conductor cross-section, with each conductor section having at least one, in particular two, legs.
  • At least two legs of different conductor sections of the circular arrangement are each arranged in a row, with the rows each being oriented along a radial direction.
  • the device includes an inner tool.
  • the inner tool comprises several support units arranged in a circle.
  • the Support units are movably arranged in the inner tool along the radial direction.
  • the support units can be moved radially outwards from a retracted basic position into various gripping positions (and vice versa). Different radial positions of the support units are assigned to the different gripping positions. In other words, in the different gripping positions, the circular arrangements of the support units each have a different diameter.
  • the support units are designed and arranged in order to contact the innermost leg of a row of legs with an inner contact section from radially inwards in a respective gripping position.
  • the device further includes an external tool.
  • the external tool has several clamping units arranged in a circle.
  • the clamping units are arranged in the outer tool so that they can move along the radial direction.
  • the clamping units can be moved radially inward from a basic position into various gripping positions (and vice versa). Different radial positions of the clamping units are assigned to the different gripping positions corresponding to the support units.
  • the clamping units are designed and arranged in order to contact the outermost leg of a row of legs with an outer contact section from radially outside in a respective gripping position.
  • the contact section can comprise an elastic material, it can be designed as an elastic element, in particular made of an elastomer.
  • the supporting units and the clamping units are arranged in such a way that a supporting unit and a clamping unit are respectively associated with the same row of legs in the radial direction and form a gripping pair. This gripping pair is designed to grip a row of legs from radially inside and radially outside or to contact them on both sides and to clamp them between each other in different gripping positions.
  • the support units each form an inner gripping jaw and the clamping units each form an outer gripping jaw. In each case one support unit and one clamping unit are typically arranged in alignment with one another in the radial direction.
  • gripping means gripping in the form of clamps, ie actively compressing the gripped or clamped row of legs.
  • a force is exerted on the respective row from radially inside and from radially outside. Due to the clamping or the gripping, the respective row of legs is fixed in particular in all three spatial directions.
  • the components involved e.g. the support units and the clamping units
  • the clamping units can be mounted flexibly along the radial direction in the outer tool.
  • a flexible (elastic) bearing means that the position of the respective tensioning unit can “give” in the radial direction due to the type of bearing.
  • the respective clamping unit has a certain relative to its current target position, which is specified, for example, by its drive Freedom of movement, a possibility to be deflected around this target position.
  • the legs of the hairpins extend in the axial direction when gripped.
  • a plurality of legs are arranged in a row running in the radial direction.
  • a set consisting of a gripped ring arrangement and the device and also a set consisting of two different ring arrangements with different inside and/or outside diameters and the device are also within the meaning of the invention, with the device being able to grip both ring arrangements.
  • the inner tool can have several further support units arranged in a circle.
  • the further support units are offset along the axial direction to the support units described above.
  • the further support units can be arranged in the inner tool so as to be movable along the radial direction.
  • the further support units can be moved radially outwards from a retracted basic position into various gripping positions.
  • Gripping positions can be associated with different radial positions of the additional support units.
  • the additional support units can have the features that were described in connection with the support units initially, without these being repeated here again.
  • the external tool can have several further clamping units arranged in a circle.
  • the other clamping units are offset along the axial direction to the clamping units described above.
  • the further clamping units can be arranged in the outer tool so as to be movable along the radial direction.
  • the other clamping units can be moved radially inwards from a basic position into various gripping positions. In this case, different radial positions of the further clamping units are assigned to the different gripping positions.
  • the other clamping units can have the features that were described in connection with the clamping units at the beginning, without these being repeated here again.
  • the additional support units and clamping units form additional gripping pairs, which are arranged axially offset to the first gripping pairs. They are used to be able to grip the hairpin legs at an axially offset position; this axially offset gripping can be used as an alternative or in addition.
  • the clamping units can be moved radially inwards and outwards together via a (first) common drive. Additionally or alternatively, the further clamping units can be moved radially inwards and outwards together via a further (second) common drive.
  • the common drive can represent a first common drive and the further common drive can represent a second common drive.
  • the clamping units can be resiliently mounted in the external tool.
  • the clamping units can have a coupling element.
  • the clamping units can be coupled to the common drive via the respective coupling element.
  • the respective coupling element can be mounted resiliently (or elastically) in the respective clamping unit in the radial direction, e.g. by means of an elastic sleeve, in particular made of an elastomer, a spring and/or an elastic or resilient element .
  • the clamping units can thus be or can be displaced in their radial position in their respective position predetermined by the common drive against the suspension (e.g. against the elastic sleeve, the spring and/or the elastic or resilient element). be deflectable relative to a position predetermined by the drive.
  • the coupling element with spring mounting is one possibility to implement the above-mentioned flexible mounting of the clamping units along the radial direction in the outer tool.
  • the ability of the clamping unit to be deflected around a desired position allows tolerances and/or inequalities in the circular arrangement of conductor sections to be compensated for.
  • the common drive can be designed as a link drive.
  • the coupling elements of the clamping units can be designed as, in particular pin-like, extensions.
  • the coupling elements can engage in a respective cam track of the common drive.
  • a curved track is typically assigned to each coupling element.
  • the cam tracks of the individual clamping units or of their coupling elements can lie on a common cam track element, in particular in the form of curved or straight, elongated grooves or elongated holes, into which the respective coupling element engages.
  • the common cam track element can be designed in particular as a disk element and can be arranged in the device such that it can rotate.
  • the common drive can bring about a radial movement of the clamping units by rotating the cam track element about the axial direction.
  • the clamping units can be guided by means of a guide device in such a way that the clamping units are exclusively along the radial direction, in particular between the basic position and the different gripping f positions, are movable.
  • the rotational movement of the cam track element can, for example. by a pneumatic drive, in particular a pneumatic cylinder.
  • the configuration just described enables the clamping units to be transferred from their basic position to the various gripping positions in a structurally simple manner.
  • the clamping units can be moved in a simple, reliable and precise manner by means of the link drive just described.
  • the further clamping units can have a coupling element.
  • the coupling element of the further clamping units can be designed according to the explanations for the (first) clamping units, what its bearing (spring-loaded (or elastically) mounted in the respective clamping unit) and interaction with a drive, which can also be designed as a link drive, concerns .
  • the additional common drive can be designed as a link drive corresponding to the first drive and can have the features that were explained in connection with the first drive.
  • a pivoting element can be arranged on at least one of the clamping units, in particular several clamping units, in particular all clamping units of the circular arrangement.
  • a pivoting element can be arranged on at least one of the further clamping units, in particular several further clamping units, in particular all further clamping units of the circular arrangement.
  • the pivoting element can be pivotable between a displacement position and a stop position. In the travel position, the pivoting element can be aligned in such a way that it can be moved in the radial direction between two rows of legs. In the stop position, the pivoting element can extend within a row of legs between two legs. In the stop position, the pivoting element can be located between the innermost limb and the outermost limb of the row of limbs, viewed in the radial direction. For this purpose, the pivoting element can be designed to be pivotable about the radial direction. In other words, the pivoting axis of the pivoting element can be oriented (aligned) along the radial direction.
  • this empty space can be filled by the pivoting element, particularly in the stop position. This can prevent the outermost limb and/or the innermost limb of a row of limbs from being bent in the direction of the empty space due to the gripping and the force thus acting on the innermost limb and/or the outermost limb in the direction of the empty space.
  • the pivoting element can have a plate-like section
  • This plate-like section typically has rounded edges in the pivoting-in direction, so that when it is pivoted in, the rounded edges can contact the conductor pieces, thereby providing a self-centering effect.
  • the pivoting element can be arranged movably mounted in the respective clamping unit along the radial direction, in particular in a resilient (elastic) manner.
  • the pivoting element can be arranged movably mounted in the respective further clamping unit along the radial direction, in particular in a resilient (elastic) manner.
  • the tensioning unit and/or the further tensioning unit can have a spring, in particular a leaf spring.
  • the pivoting element can be tensioned by means of the spring so that it can be deflected about a basic position in the tensioning unit or in the further tensioning unit.
  • the pivoting element can be deflectable against the tension of the spring along the radial direction.
  • the pivoting element can have a groove, with a pin of the tensioning unit or of the further tensioning unit being accommodated in the groove. The pivoting element thus has a possibility for guided movement in the radial direction, which is limited by the extension of the groove.
  • the pivoting element can be arranged on a pivoting shaft which extends through the tensioning unit or the further tensioning unit, wherein the groove can be arranged on the pivoting shaft. It is also conceivable that the groove is arranged in the clamping unit or in the further clamping unit , and the pin is located in the pivot shaft .
  • the pivot shaft may be oriented along the radial direction.
  • the inner tool can have a cone-shaped (first) feed element.
  • the feed element can be arranged and designed to move the support units along the radial direction by moving in the axial direction.
  • the support units can be moved from the basic position into the various gripping positions by means of an axial movement of the feed element.
  • the inner tool can have a cone-shaped further (second) feed element.
  • the additional feed element can be arranged and designed to move the additional support units along the radial direction by moving in the axial direction.
  • the additional support units can be moved from the basic position into the various gripping positions by means of an axial movement of the additional feed element.
  • the support units can have an elastic section (in particular made of an elastomer) on their ends facing the feed element.
  • the respective contact surface of the support units with the feed element can each be elastic (in particular made of an elastomer).
  • the further support units can have an elastic section (in particular made of an elastomer) on their ends facing the further feed element or have an elastic element.
  • the respective contact surface of the additional support units with the additional feed element can each be designed to be elastic (in particular made of an elastomer).
  • the (first) support units and/or the additional (second) support units can be prestressed radially inwards.
  • This can be implemented by means of at least one garter spring, which bears in particular on all support units or on all other support units in a ring-shaped manner.
  • the movement of the support units and/or the further support units can be implemented radially inwards, in particular into the basic position.
  • the (first) support units and/or the additional (second) support units can each have at least one guide pin, in particular at least two guide pins.
  • the guide pin or guide pins can be movably mounted in the inner tool in order to enable a guided (linear) movement of the respective support units and/or the respective further support units in the radial direction.
  • the guide pin represents a linear guide for the respective support unit or the respective further support unit. Accordingly, the guide pin is aligned in particular along the radial direction. In this way, for example, tilting (or canting) of the support units and/or the further support units can be prevented during their movement along the radial direction.
  • the support units can be designed to be deflectable about their predetermined desired position and can be arranged in the inner tool.
  • the guide pins can, for example, along their Longitudinal extension may be designed to be elastically compressible in order to bring about a resilience of the support units.
  • the clamping units in particular all clamping units, can have a radially inwardly directed, fork-shaped receptacle.
  • the further clamping units in particular all further clamping units, can have a fork-shaped receptacle directed radially inwards.
  • the fork-shaped receptacle can be set up in order to be able to each accommodate a row of legs.
  • the fork-shaped receptacle can serve in particular as an insertion aid for the pivoting elements between the rows of legs.
  • the fork-shaped receptacle can delimit a row of legs in the circumferential direction.
  • the clamping units can have an actuating element.
  • the actuating element is set up to pivot the respective pivoting element between the travel position and the stop position.
  • the actuator may be located at the radially outer end of the pivot shaft.
  • the plate-like section can be arranged, in particular, aligned horizontally.
  • the actuating element can be designed in the form of a pivoting arm that pivots about the longitudinal direction of the pivoting shaft (that is, the radial direction).
  • the plate-like section can be arranged at the radially inner end of the pivoting element.
  • the pivot shaft can extend through part of the respective clamping unit.
  • the external tool can have an actuating device (and a further actuating device, which can be designed in accordance with the following explanations), which is designed to adjust the actuating elements of all clamping units at the same time and thus to pivot the pivoting elements of all clamping units at the same time between the travel position and the stop position .
  • an actuating device and a further actuating device, which can be designed in accordance with the following explanations, which is designed to adjust the actuating elements of all clamping units at the same time and thus to pivot the pivoting elements of all clamping units at the same time between the travel position and the stop position .
  • the actuating device can be designed in the form of an annular disc with receptacles. Each receptacle of the actuating device can be set up to be able to accommodate an actuating element. A rotational movement of the actuating device relative to the actuating elements of the clamping units allows each of the actuating elements to be pivoted about the radial direction.
  • the actuating elements, the corresponding pivoting elements and the corresponding pivoting shafts of the clamping units can each be connected to one another in a torque-proof manner.
  • a pivoting of the actuating element can thus cause a pivoting of the pivoting element.
  • the (rotational movement of the) actuating device can thus bring about a pivoting of the pivoting elements between the displacement position and the stop position.
  • a simultaneous and identical pivoting movement of the pivoting elements of all clamping units can be implemented by means of a simple rotational movement of the actuating device. It is conceivable that a pivoting element according to the above statements is arranged on at least one of the (first and/or second) support units, in particular several support units, in particular all support units.
  • the conductor sections can be conductor sections according to the above statements.
  • the procedure includes the steps:
  • the circular arrangement of conductor pieces can represent a first circular arrangement of conductor pieces and the further circular arrangement of conductor pieces can constitute a second circular arrangement of conductor pieces. Gripping the further circular arrangement of conductor pieces by means of the device, the individual rows of legs each being gripped (grippingly grasped) on an innermost leg and an outermost leg of a row of legs.
  • a conductor piece basket means the final configuration of the conductor pieces as they are used in a stator of an electrical machine.
  • the method can further include the steps:
  • the circular arrangement of conductor sections and/or at least one of the other circular arrangements of conductor sections can have one inner ring of legs of the conductor pieces and having an outer ring of legs spaced radially therefrom by a void.
  • a pivoting element of the device can be arranged, in particular pivoted, into the empty space between the inner ring of legs and the outer ring of legs. In other words, the empty space can be filled with the respective swivel element.
  • a device according to the above statements can be used to carry out the method.
  • the advantages that can be achieved in this way reference is made to the relevant statements on the device.
  • the measures described in connection with the device and/or the measures explained below can serve to further refine the method.
  • Fig. 1 is a perspective view of a device according to the invention
  • Fig. 2 shows a sectional view of an inner tool in a basic position
  • Fig. 3 shows a sectional view of the inner tool according to FIG. 2 in a gripping position
  • Fig. 4 shows a detail of a perspective view from above of an annular section of an outer tool
  • Fig. 5 shows a detail of a perspective sectional view from below of the ring-shaped section of the outer tool according to FIG. 4;
  • Fig. 6 shows a detail of a perspective view from above of a further ring-shaped section of the outer tool
  • Fig. 7 shows a detail of a perspective sectional view from below of the further ring-shaped section of the outer tool according to FIG. 6;
  • Fig. 8 is a sectional view of a clamping unit or a further clamping unit
  • Fig. 9 a sectional view of the clamping unit or the further clamping unit according to a further exemplary embodiment from and
  • Fig. 10 shows a section of a perspective view during a gripping process using the device.
  • FIG. 1 shows a perspective view of a device 10 according to the invention.
  • the device 10 has an inner tool 20 and an outer tool 26 .
  • the inner tool 20 has an elongate design along an axial direction 33 .
  • the central longitudinal axis 23 of the (elongated) inner tool 20 extends along the axial direction 33 .
  • a direction oriented orthogonally to the axial direction 33 and pointing away from the central longitudinal axis 23 is referred to here as the radial direction 18 .
  • the device 10 is configured to grip, hold and manipulate a circular array 12 of conductor pieces 14 .
  • the conductor pieces 14 are in the form of hairpins with two legs 16 or in the form of special pins with one leg 16 .
  • the outer tool 26 has an annular section 74 with a plurality of clamping units 28 arranged in a circle and a further annular section 76 with a plurality of further clamping units 34 arranged in a circle.
  • the ring-shaped section 74 can represent a first ring-shaped section and the further ring-shaped section 76 can represent a second ring-shaped section.
  • the ring-shaped section 74 and the further ring-shaped section 76 are presently of identical design and are arranged at an axial distance from one another (one above the other).
  • the annular portion 74 and the further annular portion 76 can be (mechanically) connected to each other or. to be coupled .
  • the ring-shaped section 74 and the further ring-shaped section 76 can be immovably (fixedly) connected to one another or connected to one another. can be coupled and can only be moved together and in the same way.
  • the ring-shaped section 74 and further ring-shaped section 76 are designed to be movable relative to one another. In other words, it is conceivable that the ring-shaped section 74 and the further ring-shaped section 76 can be moved independently of one another.
  • FIG. 2 shows a sectional view of the inner tool 20 in a basic position.
  • the inner tool 20 has support units 22 and further support units 32 .
  • the support units 22 and the further support units 32 are arranged in a circle and are designed to be movable along the radial direction 18 .
  • the support units 22 and the further support units 32 can be moved (moved) from the basic position shown radially outward into various gripping positions.
  • the support units 22 and the further support units 32 each have an inner contact section 21 .
  • the inner contact section is designed to contact the innermost leg 24 of a row of legs 16 from radially inwards when the support units 22 and/or the further support units 32 are in a gripping position.
  • the contact sections 21 are orthogonal to the radial direction 18 or oriented parallel to the axial direction 33 .
  • the inner contact section 21 can be elastic (for example made of an elastomer).
  • the support units 22 and the further support units 32 are of identical design.
  • the inner tool 20 is designed like a sleeve.
  • a cone-shaped feed element 66 and another cone-shaped feed element 68 are arranged inside the inner tool 20 .
  • the cone-shaped feed element 66 is arranged on a shaft 67 and is designed to be movable along the axial direction 33 . Both the shaft 67 and the cone-shaped feed element 66 have a passage 69 aligned along the axial direction 33 .
  • the cone-shaped further feed element 68 is arranged on a further shaft 71 and is designed to be movable along the axial direction 33 .
  • the further shank 71 extends through the passage 69 of the feed element 66 and the shank 67 .
  • the two feed elements 66, 68 are moved simultaneously and in the same way (along the axial direction 33). It is also conceivable that the two feed elements 66, 68 can be moved independently of one another (along the axial direction 33).
  • the two feed elements 66 , 68 can be (mechanically) connected to one another or to be coupled .
  • the support units 22 and the further support units 32 can be moved from their basic position shown radially outwards (along the radial direction 18) into different gripping positions.
  • the two feed elements 66, 68 are moved axially, downwards in FIG. Due to the cone-like shape of the two feed elements 66, 68, the support units 22 and the further support units 32 are each pushed radially outwards along the radial direction 18.
  • the ends of the support units 22 or of the further support units 32 facing the two feed elements 66, 68 have an elastic section (in particular made of an elastomer).
  • the respective contact surface of the support units 22 or the further support units 32 with the two feed elements 66, 68 can each be elastic (in particular made of an elastomer).
  • FIG. 3 shows a sectional view of the inner tool according to FIG. 2 in a gripping position.
  • the support units 22 and the other support units 32 are arranged in a circle and have been moved further radially outwards compared to the basic position shown in FIG.
  • the circular arrangement of the support units 22 and the additional support units 32 in the gripping position has a larger diameter than the circular arrangement of the support units 22 and the additional support units 32 in the basic position (see FIG. 2).
  • the support units 22 and the further support units 32 are shown in a gripping position.
  • the two feed elements 66 , 68 have been moved downwards compared to FIG. 2 and the support units 22 and the further support units 32 have been moved radially outward into the gripping position shown.
  • the radially outward movement of the support units 22 and the further support units 32 can be adjusted as desired.
  • the two feed elements 66, 68 are moved upwards.
  • the support units 22 and the further support units 32 each have two garter springs 70 which support the respective support units 22 or bias the other support units 32 radially inward and represent a restoring element.
  • Other types of restoring elements, which urge the support units radially inwards, can be provided within the meaning of the invention.
  • the tension of the garter springs 70 forces the support units 22, respectively. the other support units 32 to move radially inward (e.g. back to the basic position).
  • the support units 22 and the further support units 32 each have three guide pins 72 .
  • the guide pins 72 are each arranged to be movable in the radial direction 18 and serve as a linear guide in the radial direction 18 for the respective support units 22 or the respective additional support units 32 .
  • the support units 22 and the further support units 32 can thus be moved translationally along the radial direction 18 .
  • a tilting or This avoids mistakes.
  • a middle guide pin 72 is in contact with the respective feed element 66 , 68 .
  • the two outer guide pins 72 mainly serve to stabilize the guidance of the support units 22 .
  • FIG. 4 shows a detail of a perspective view from above of the ring-shaped section 74 of the outer tool 26 .
  • FIG. 5 shows a detail of a perspective sectional view from below of the annular section 74 of the outer tool 26 according to FIG.
  • the clamping units 28 are arranged in the annular section 74 of the outer tool 26 so that they can be moved along the radial direction 18 by means of a common drive.
  • the common drive is designed in the form of a slotted link drive.
  • the ring-shaped section 74 has a common cam track element 54 , in this case designed like a disk, with a large number of cam tracks 52 .
  • the curved tracks 52 are each designed in the form of a straight slot in the curved track element 54 .
  • a cam track 52 is assigned to each clamping unit 28 .
  • the number of clamping units 28 and the number of cam tracks 52 are identical .
  • the clamping units 28 each have a pin-like coupling element 50 .
  • the coupling element 50 engages in the respective cam track 52 .
  • the clamping units 28 can be moved along the radial direction 18 by a rotational movement of the cam track element 54 .
  • the clamping units 28 are each guided via a guide device 56 in such a way that they can only be moved along the radial direction 18 .
  • the clamping units 28 can be moved to different radial positions. The further the cam track element 54 is rotated, the further the clamping units 28 are radially inward or moved radially outward.
  • FIG. 6 shows a detail of a perspective view from above of the further ring-shaped section 76 of the outer tool 26 .
  • FIG. 7 shows a detail of a perspective sectional view from below of the further annular section 76 of the outer tool 26 according to FIG.
  • the further clamping units 34 are arranged in the further ring-shaped section 76 of the outer tool 26 so that they can be moved along the radial direction 18 by means of a further common drive.
  • the additional common drive is designed in the form of a slotted link drive.
  • the further ring-shaped section 76 has a common cam track element 62 , in this case designed like a disk, with a large number of cam tracks 60 .
  • the curved tracks 60 are present in each case in the form of a straight track Elongated hole formed in cam track element 62 .
  • a cam track 60 is assigned to each additional clamping unit 34 . In other words, the number of additional clamping units 34 and the number of cam tracks 60 are identical.
  • the other clamping units 34 each have a pin-like coupling element 58 .
  • the coupling element 58 engages in the respective cam track 60 .
  • the other clamping units 34 can be moved along the radial direction 18 by a rotational movement of the cam track element 62 .
  • the further clamping units 34 are each guided via a guide device 64 in such a way that they can only be moved along the radial direction 18 .
  • the further clamping units 34 can be moved to different radial positions.
  • the coupling elements 50, 58 are in the clamping units 28 and the other clamping units 34 are each arranged in an elastic sleeve 35 (in the present case made of an elastomer).
  • the sleeve 35 each represents a type of suspension for the clamping units 28 or the other clamping units 34 are.
  • the clamping units can be forcibly moved along the radial direction 18 even if the corresponding cam track elements 54, 62 are not rotated (ie not moved).
  • the coupling elements 50, 58 can also be different in a be arranged clamped in a specific position in the respective clamping unit 28 , 34 .
  • the clamping units 28 and the other clamping units 34 can therefore be moved against the spring force (clamping force) of the respective sleeve 35 along the radial direction 18 .
  • the clamping units can be deflected from a desired position against a preload.
  • an elastic and/or resilient element eg a spring
  • a certain amount of play in the clamping units 28 or of the further clamping units 34 can be achieved along the radial direction 18 .
  • a flexible (elastic) mounting of the clamping units 28 or of the further clamping units 34 can be achieved in the radial direction 18 .
  • the clamping units 28 and the other clamping units 34 each have an outer contact section 39 .
  • the outer contact section 39 is designed to contact the outermost leg 30 of a row of legs 16 from the radial outside when the clamping units 28 and/or the further clamping units 34 are in a gripping position.
  • the contact sections 39 are orthogonal to the radial direction 18 or oriented parallel to the axial direction 33 .
  • the outer contact sections 39 are designed to be elastic.
  • clamping units 28 or of the other clamping units 34 is conceivable, in which the elastic sleeve 35 (or the elastic and/or resilient Element (see. Above)) is present and the outer contact portion 39 is not elastic.
  • clamping units 28 or the further clamping units 34 An exemplary embodiment of the clamping units 28 or the further clamping units 34 is also conceivable in which the elastic sleeve 35 (or the elastic and/or resilient element (cf. above)) is not present and the outer contact section 39 is elastic.
  • Figure 8 shows a sectional view (longitudinal section) of the clamping unit 28 or the further clamping unit 34.
  • clamping units 28 and the further clamping units 34 are of identical design, so that FIGS. 8 and 9 each show a clamping unit 28 or a further clamping unit 34.
  • the clamping unit 28 shown in FIG. 8 or another clamping unit 34 has a pivoting element 36 .
  • the pivoting element 36 is designed to be pivotable between a travel position 38 (shown in FIGS. 8 and 9) and a stop position 40 (shown in FIGS. 5 and 7).
  • the pivoting element 36 has a plate-like section 92, in the stop position 40 this is horizontally extended (oriented) and in the travel position 38 it is vertically extended (oriented).
  • the plate-like section 92 has rounded edges 94 which make it easier to pivot between conductor pieces 14 .
  • the pivoting element 36 In the traversing position 38 the pivoting element 36 can be moved back and forth between two adjacent rows of legs 16 along the radial direction 18 . Is there a Empty space within a row of legs 16, the pivoting element 36 can first be moved between the rows to a corresponding radial position and then pivoted into the empty space of the row of legs 16 (stop position 40). In the stop position 40, the pivoting element 36 or its plate-like section 92 represents a stop for the legs 16 adjacent radially inwards or radially outwards to the pivoting element 36 or contacting the pivoting element 36.
  • the clamping unit 28 or further clamping unit 34 has a fork-shaped receptacle 37 .
  • the forked receptacle 37 has two fork prongs 41 and is set up to at least partially accommodate a row of legs 16 . Due to the sectional view, the fork-shaped receptacle 37 is only partially shown and the fork prongs 41 are not visible in the present case (cf. FIGS. 4 to 7 in this regard).
  • the fork-shaped receptacle 37 serves as a guide during the radially inward or radially outward movement of the pivoting element 36.
  • the two fork prongs 41 represent a boundary in the circumferential direction for the legs 16 of the respective row of legs 16 accommodated in the fork-shaped receptacle 37.
  • a pivot shaft 78 is arranged on the pivot element 36 .
  • the pivot shaft 78 extends through the respective clamping unit 28 or the respective further clamping unit 34.
  • the pivot shaft 78 is rotatably mounted within the clamping unit 28 or the further clamping unit 34. In other words, the pivot shaft 78 and the respective clamping unit 28 or . the respective additional clamping units 34 are not connected to one another in a rotationally test manner.
  • An actuating unit 48 is arranged at the radially outer end of the pivot shaft 78 . Due to the sectional view, the actuation unit 48 is only partially shown (cf. FIGS. 5 to 7).
  • the actuation unit 48 is in the present case in the form of a lever which is arranged for rotation on the pivot shaft 78 .
  • the operating unit 48 can therefore be pivoted about the respective pivot shaft 78 .
  • the pivoting element 36 can be pivoted between the displacement position and the stop position.
  • the ring-shaped section 74 of the outer tool 26 has an actuating device 80 (cf. FIGS. 1 and 4).
  • the actuating device 80 has a large number of receptacles 82 .
  • Each receptacle 82 is designed to be able to receive an actuating unit 48 of a tensioning unit 28 .
  • the actuating units 48 are accommodated in the receptacles 82 in such a way that a radial movement of the actuating units 48 within the respective receptacles 82 is possible.
  • a rotational movement of the actuating device 80 (relative to the actuating units 48 ) allows all the actuating units 80 to be pivoted simultaneously and in the same way about the radial direction 18 . Due to the non-rotatable coupling between the actuating units 48 and the For each pivoting element 36 , the pivoting elements 36 are also pivoted due to the rotational movement of the actuating device 80 .
  • the further ring-shaped section 76 of the outer tool 26 has a further actuating device 81 (cf. FIG. 1 and FIG.
  • the additional actuating device 81 has a large number of additional receptacles 84 .
  • Each additional receptacle 84 is designed to be able to accommodate an actuating unit 48 of an additional tensioning unit 34 .
  • the actuating units 48 are accommodated in the further receptacles 84 in such a way that a radial movement of the actuating units 48 within the respective further receptacles 84 is possible.
  • a rotational movement of the further actuating device 81 (relative to the actuating units 48 ) allows all the actuating units 48 to be pivoted simultaneously and in the same way about the radial direction 18 . Due to the non-rotatable coupling between the actuating units 48 and the respective pivoting elements 36 , the pivoting elements 36 are also pivoted due to the rotational movement of the further actuating device 81 .
  • the clamping unit 28 or the further clamping unit 34 has a spring 42 (leaf spring). In the present case, this is fixed to the respective clamping unit 28 or arranged on the respective further clamping unit 34 and extends through a Recess 43 (or through-opening) in the clamping unit 28 or of the further tensioning unit 34 to a groove 45 (or notch ) in the swivel shaft 78 .
  • the pivot shaft 78 is thus mechanically coupled to the spring 42 .
  • the swivel shaft 78 and thus the respective swivel element 36 can now counteract the spring force of the spring 42 within the clamping unit 28 or the other clamping unit 34 along the radial direction 18 or shifted. to be moved .
  • flexible (elastic) mounting of the pivoting elements 36 within the clamping units 28 or of the further clamping units 34 can be achieved in the radial direction 18 .
  • Figure 9 shows a sectional view of the clamping unit 28 or. the further clamping unit 34 according to a further exemplary embodiment.
  • the exemplary embodiment shown differs from the exemplary embodiment shown in Figure 8 in that the flexible (elastic) mounting of the pivoting elements 36 is not achieved by means of a spring 42, but by means of a groove 46 arranged in the pivoting shaft 78 and one inside the clamping unit 28 or . the further clamping unit 34 arranged extension 44, which ft in the groove 46 of the pivot shaft 78 attacking.
  • FIG. 10 shows a section of a perspective view of a gripping process using the device 10 .
  • the gripping process is shown here as an example using the clamping units 28 and the support units 22 .
  • the circular arrangement of conductor pieces 14 has an inner ring 86 of legs 16 of the conductor pieces 14 and an outer ring 88 of legs 16 spaced apart therefrom in the radial direction 18 by an empty space 87 .
  • support units 22 - as described above - are moved radially outwards until they contact the respective legs 16 of the inner ring 86 with their inner contact sections 21 .
  • clamping units 28 are moved radially inward, with the respective pivoting elements 36 being in the travel position 38 during the radially inward movement of the clamping units 28 (cf. FIG. 8).
  • the clamping units 28 are moved radially inwards until they contact the respective legs 16 of the outer ring 88 with their respective outer (elastic) contact sections 39 .
  • the radially inward movement of the clamping units 28 or. the pivoting elements 36 is supported by the respective fork-shaped receptacles 37 or. guided .
  • the two fork prongs 41 of the respective receptacles 37 move left and right (in the circumferential direction) on the respective row of Legs 16 over and limit them to the left and right in the circumferential direction.
  • the pivoting elements 36 in the stop position 40 fill the empty space 87 between the inner ring 86 and the outer ring 88 in the radial direction 18 .
  • the pivoting elements 36 in the stop position 40 represent a stop for the legs 16 of the inner ring 86 in the radially outward direction.
  • the pivoting elements 36 in the stop position 40 correspondingly represent a stop for the legs 16 of the outer ring 88 in the radially inward direction.
  • the support units 22 can be moved radially outwards and the clamping units 28 can be moved radially inwards without the legs 16 of the inner ring 86 or of outer ring 88 toward void 87 .
  • the gripping process by means of the additional support units 32 and the additional clamping units 34 works accordingly in an analogous manner.
  • the gripping operation works as described above, except that the pivot members 36 remain in the travel position 38 and not in the stop position 40 are pivoted.
  • circular arrangements of conductor pieces 14 can be gripped, held and manipulated, each of which has a different diameter.
  • circular arrangements of conductor sections 14 can also be gripped, held and handled, each having a different diameter and an inner ring 86 of legs 16 of the conductor sections 14 and an outer ring spaced apart from this in the radial direction 18 by an empty space 87 have ring 88 of legs 16 .
  • a complete conductor basket can thus be assembled from individual, circular arrangements of different sizes (different diameters) and/or different types (circular arrangements with or without an empty space 87 within the rows of conductor sections 14 ).

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Manipulator (AREA)

Abstract

L'invention concerne un dispositif (10) de préhension, de maintien et de manipulation d'au moins un agencement circulaire (12) de pièces conductrices (14), et un procédé de préhension, de maintien et de manipulation d'au moins un agencement circulaire (12) de pièces conductrices (14).
EP22818822.3A 2021-12-21 2022-11-22 Dispositif et procédé de préhension, de maintien et de manipulation d'au moins un agencement circulaire de pièces conductrices Withdrawn EP4256681A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021134009.8A DE102021134009A1 (de) 2021-12-21 2021-12-21 Vorrichtung und Verfahren zum Greifen, Halten und Handhaben mindestens einer kreisförmigen Anordnung von Leiterstücken
PCT/EP2022/082764 WO2023117257A1 (fr) 2021-12-21 2022-11-22 Dispositif et procédé de préhension, de maintien et de manipulation d'au moins un agencement circulaire de pièces conductrices

Publications (1)

Publication Number Publication Date
EP4256681A1 true EP4256681A1 (fr) 2023-10-11

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EP22818822.3A Withdrawn EP4256681A1 (fr) 2021-12-21 2022-11-22 Dispositif et procédé de préhension, de maintien et de manipulation d'au moins un agencement circulaire de pièces conductrices

Country Status (3)

Country Link
EP (1) EP4256681A1 (fr)
DE (1) DE102021134009A1 (fr)
WO (1) WO2023117257A1 (fr)

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JP3775349B2 (ja) * 2002-06-03 2006-05-17 株式会社デンソー 回転電機の固定子巻線の製造方法、巻線構造および巻線の製造方法
US7941910B2 (en) 2007-03-22 2011-05-17 Tecnomatic S.P.A. Method for removing winding conductors from a twisting machine and placing them in a rotor stator stack
BR112013001113B1 (pt) 2010-07-16 2019-10-22 Tecnomatic Spa sistema de grampeamento de condutores especiais para enrolamentos de barra de rotor, conjunto de grampeamento, aparelho de contenção para a torção e processo de grampeamento de condutores especiais para um enrolamento de barra de rotor ou estator
US9757820B2 (en) 2012-05-24 2017-09-12 GM Global Technology Operations LLC Welding fixture for joining bar-wound stator conductors
DE102016113894A1 (de) 2016-07-27 2018-02-01 Grob-Werke Gmbh & Co. Kg Verfahren und Vorrichtung zum Einbringen von Drähten
DE102016219480A1 (de) * 2016-10-07 2018-04-12 Thyssenkrupp Ag Montagevorrichtung zum gleichzeitigen Einführen von Kupferstäben
DE102017123670A1 (de) 2017-10-11 2019-04-11 Aumann AG Verfahren zum Herstellen einer Anordnung für eine Steckspule einer elektrischen Maschine, Greifvorrichtung und Fertigungsvorrichtung
CN111201700B (zh) * 2017-11-28 2022-05-27 米巴自动化系统有限公司 用于制造定子的半成品的方法和用于制造定子的半成品的设备
DE102018103929A1 (de) 2018-02-21 2019-08-22 Grob-Werke Gmbh & Co. Kg Vorrichtung und Verfahren zum Umformen von Drahtenden in Umfangsrichtung
DE102018121745A1 (de) 2018-09-06 2020-03-12 Aumann AG Verfahren und Vorrichtung zum Herstellen einer Anordnung von Spulenelementen für eine Steckspule einer elektrischen Maschine
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Publication number Publication date
DE102021134009A1 (de) 2023-06-22
WO2023117257A1 (fr) 2023-06-29

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