EP3774110B1 - Dispositif de redressage des extrémités de fil métallique - Google Patents

Dispositif de redressage des extrémités de fil métallique Download PDF

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Publication number
EP3774110B1
EP3774110B1 EP19717269.5A EP19717269A EP3774110B1 EP 3774110 B1 EP3774110 B1 EP 3774110B1 EP 19717269 A EP19717269 A EP 19717269A EP 3774110 B1 EP3774110 B1 EP 3774110B1
Authority
EP
European Patent Office
Prior art keywords
straightening
clamping
wire ends
elements
wire
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.)
Active
Application number
EP19717269.5A
Other languages
German (de)
English (en)
Other versions
EP3774110A1 (fr
Inventor
Jürgen Schaffert
Rüdiger Brandau
Rainer Lenz
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.)
Vitesco Technologies GmbH
Original Assignee
Vitesco Technologies GmbH
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Filing date
Publication date
Application filed by Vitesco Technologies GmbH filed Critical Vitesco Technologies GmbH
Publication of EP3774110A1 publication Critical patent/EP3774110A1/fr
Application granted granted Critical
Publication of EP3774110B1 publication Critical patent/EP3774110B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire
    • B21F1/02—Straightening

Definitions

  • the invention relates to a device for straightening protruding wire ends of enamelled copper wires of a coil arrangement of electric motors.
  • a device for inserting cable ends into circuit boards has become known, in which a gripper which can be moved parallel to the axial direction of the cable end holds the cable end on an insulation and a pliers-like straightening tool straightens the non-insulated tip of the cable end. The pliers-like straightening tool then moves apart and the cable is guided into the circuit board by the gripper. Straightening protruding wire ends of enamelled copper wires is not possible with a gripper that can be moved parallel to the axial direction of the wire end.
  • the JP S 61 22236 U discloses a device for soldering a component to a circuit board.
  • JP S60 255224 A discloses a slider with a slot-like recess for supporting a wire end of a coil. The slider is pushed over the end of the wire with the slot-like recess and then a mold plate is guided into the recess to shape the end of the wire. This device is only suitable for very stiff wire ends, where bending away when the slider moves is impossible.
  • the invention is based on the problem of creating a device with which an additional component that has to be assembled is avoided and with which damage to the wire ends can be avoided.
  • a clamping device for clamping the wire ends at a distance from their free ends and a straightening device for straightening the free ends of the wire ends that protrude above the clamping device.
  • the wire ends are initially held by the clamping device at a distance from their free ends.
  • Appropriate design of the clamping device prevents damage, particularly to enamelled copper wires. Then leave it The free ends of the wire ends are aligned by the straightening device and thus brought into the intended shape. This means that the wire ends are brought into the intended shape without the use of additional components.
  • the motor assembly having the coil arrangement can then be inserted into the injection molding tool.
  • the device is particularly compact if the clamping device and the straightening device are arranged in two levels one above the other.
  • An electric motor usually has at least two wire ends that need to be straightened.
  • the device enables rapid processing of several wire ends if the clamping device and the straightening device are designed for simultaneous clamping and straightening of several wire ends.
  • the clamping device has two clamping elements that can be moved relative to one another between a clamping position and a release position and that wire ends inserted in the clamping position are held in a non-positive manner and in the release position The frictional connection with the inserted wire ends is released.
  • uniform clamping of the wire ends can be ensured if the clamping elements are each connected to an actuator and can be moved transversely to the axis of the wire ends.
  • the straightening of the wire ends is particularly simple if the straightening device has two straightening elements that can be moved relative to one another between a straightening position for bending or straightening the wire ends and a release position. To When processing several wire ends at the same time, the straightening elements can be shaped accordingly.
  • one of the straightening elements could be fixed and the other of the straightening elements could be moved.
  • this can lead to undesirable stress on the wire ends.
  • the load on the wire ends can be kept particularly low if the two straightening elements are each connected to an actuator and can be moved transversely to the axis of the wire ends. Due to this design, the straightening elements move towards each other and straighten the end of the wire, which is preferably held centrally by the clamping device.
  • lateral bending of the wire ends during straightening can be easily avoided if the straightening elements are designed prism-shaped. This design guides the wire end into the intended shape.
  • the device can be easily converted for multiple wire ends, different shapes or for different cross sections of the wire ends if the straightening elements are releasably fastened in the straightening device.
  • This design makes it possible to replace the straightening elements and thus adapt the straightening device to the number, the shape to be straightened and the cross section of the wire ends.
  • a screw connection is particularly suitable for detachable fastening.
  • the actuators for driving the straightening elements and the clamping elements can be arranged on one side if one of the straightening elements and one of the clamping elements are connected to the respective actuator via tie rods. Due to this design, the device projects laterally beyond the coil arrangement, so that if there are several wire ends to be straightened, several devices are connected to one another can be coupled. This also makes the device particularly compact.
  • Figure 1 shows a straightening tool with three interconnected devices 1 and a coil arrangement 2.
  • the devices are used to straighten wire ends 3 of the coil arrangement 2 before inserting the coil arrangement 2 into an injection molding tool.
  • the devices 1 are connected to one another via a ring carrier 4 and can be pushed along several vertical guide columns 5 onto the wire ends 3 projecting from the coil arrangement 2, so that each of the devices 1 accommodates two wire ends 3.
  • the devices 1 are each used to simultaneously clamp and straighten two wire ends 3.
  • the coil arrangement 2 is part of a stator, not shown Small electric motor, which is often used as a servomotor in today's motor vehicles.
  • FIG 2 shows one of the devices 1 Figure 1 in a perspective view.
  • the device 1 has a clamping device 6 and a straightening device 7.
  • the clamping device 6 serves to clamp the wire ends 3 at a distance from their free ends, while the straightening device 7 is arranged sandwich-like above the clamping device 6 and is designed to straighten the free ends of the wire ends 3 .
  • the clamping device 6 and the straightening device 7 thus lie in two levels one above the other and each have two actuators 8 - 11 for driving clamping elements 12, 13 and straightening elements 14, 15.
  • the actuators 8, 9 of the clamping device 6 are in Figure 3 visible in a top view.
  • the actuators 8 - 11 are designed as double-acting pneumatic cylinders and enable the clamping elements 12, 13 of the clamping device 6 and the straightening elements 14, 15 of the straightening device 7 to move towards one another.
  • the actuators 8 - 11 designed as pneumatic cylinders enable the clamping elements 12, 13 or the directional elements 14, 15 to be actively moved away from one another and actively moved towards one another transversely to the in Figure 1 shown axes of the wire ends 3.
  • the wire ends 3 are thus held in a non-positive manner in a defined position when the clamping elements 12, 13 move towards one another and can be directed into the desired shape by the straightening elements 14, 15. Subsequently, straightening elements 14, 15 and clamping elements 12, 13 are moved away from each other and the coil arrangement 2 can be removed from the straightening tool with the straightened wire ends 3.
  • Figure 3 shows a top view of the device 1 Figure 1 that in the straightening device 7, the actuator 10 close to the straightening elements 14, 15 is connected directly to one of the straightening elements 14, while the actuator 11 far from the straightening elements 14, 15 is connected to the second straightening element 15 via tie rods 16.
  • the directional elements 14, 15 are prism-shaped and releasably attached to the straightening device 7. This means that the straightening device 7 can be converted, for example, to straighten a single wire end 3 or three wire ends 3 by replacing the straightening elements 14, 15.
  • Figure 4 shows in a side view of the device 1 that the clamping device 6 is constructed analogously to the straightening device 7 and also has tie rods 17 for connecting the one actuator 9 to the one clamping element 13. Furthermore, the clamping device 6 and the straightening device 7 each have adjusting screws 18, 19 for adjusting stops (not shown) of the clamping element 13 and straightening element 15 connected to the tie rods 16, 17.
  • Figure 5 shows a central sectional view through the device 1 Figure 3 along the line V - V. It can be seen here that the straightening elements 14, 15 mesh with one another like a comb. This means that the wire ends 3 are guided into the intended shape.
  • the clamping elements 12, 13 have small dimensions compared to the straightening elements 14,15.
  • Figure 6 shows a side sectional view through the device 1 for clarity Figure 3 along line VI - VI in the area of tie rods 16, 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Wire Processing (AREA)

Claims (10)

  1. Dispositif (1) pour redresser les extrémités saillantes (3) de fils de cuivre émaillés d'un ensemble de bobines (2) de moteurs électriques, caractérisé par un dispositif de serrage (6) pour serrer les extrémités de fils (3) à distance de leurs extrémités libres et un dispositif de redressage (7) pour redresser les extrémités libres des extrémités de fils (3) qui dépassent du dispositif de serrage (6).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de serrage (6) et le dispositif de redressage (7) sont agencés dans deux plans l'un au-dessus de l'autre.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le dispositif de serrage (6) et le dispositif de redressage (7) sont conçus pour le serrage et le redressage simultanés de plusieurs extrémités de fil (3).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de serrage (6) a deux éléments de serrage (12, 13) déplaçables l'un par rapport à l'autre entre une position de serrage et une position de libération et en ce que, dans la position de serrage, des extrémités de fil (3) insérées sont maintenues par friction et, dans la position de libération, une liaison par friction avec des extrémités de fil (3) insérées est libérée.
  5. Dispositif selon la revendication 4, caractérisé en ce que les éléments de serrage (12, 13) sont chacun reliés à un actionneur (8, 9) et sont déplaçable transversalement à l'axe des extrémités de fil (3).
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que le dispositif de redressage (7) comporte deux éléments de redressage (14, 15) mobiles l'un par rapport à l'autre entre une position de redressage pour la courbure ou le redressage des extrémités de fils (3) et une position de libération.
  7. Dispositif selon la revendication 6, caractérisé en ce que les deux éléments de redressage (14, 15) sont reliés chacun à un actionneur (10, 11) et en ce qu'un dispositif de serrage pour serrer les extrémités de fil et un dispositif de redressage pour redresser les extrémités de fil (3) dépassant du dispositif de serrage sont aptes à être déplacés transversalement à l'axe des extrémités de fil.
  8. Dispositif selon la revendication 6 ou 7, caractérisé en ce que les éléments de redressage (14, 15) ont une forme de prisme.
  9. Dispositif selon l'une des revendications 6 à 8, caractérisé en ce que les éléments de redressage (14, 15) sont fixés de manière amovible dans le dispositif de redressage (7).
  10. Dispositif selon l'une des revendications 4 à 9, caractérisé en ce que l'un des éléments de redressage (15) et l'un des éléments de serrage (13) sont reliés à l'actionneur respectif (9, 11) par des barres de traction (16, 17) .
EP19717269.5A 2018-04-13 2019-04-08 Dispositif de redressage des extrémités de fil métallique Active EP3774110B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018205662.5A DE102018205662A1 (de) 2018-04-13 2018-04-13 Vorrichtung zum Richten von Drahtenden
PCT/EP2019/058782 WO2019197323A1 (fr) 2018-04-13 2019-04-08 Dispositif de redressage des extrémités de fil métallique

Publications (2)

Publication Number Publication Date
EP3774110A1 EP3774110A1 (fr) 2021-02-17
EP3774110B1 true EP3774110B1 (fr) 2024-01-10

Family

ID=66165945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19717269.5A Active EP3774110B1 (fr) 2018-04-13 2019-04-08 Dispositif de redressage des extrémités de fil métallique

Country Status (5)

Country Link
US (1) US11583916B2 (fr)
EP (1) EP3774110B1 (fr)
CN (1) CN111989172A (fr)
DE (1) DE102018205662A1 (fr)
WO (1) WO2019197323A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941165A (en) * 1975-02-13 1976-03-02 Richard P. Wheat Wire lead straightening device
US4106532A (en) * 1977-06-06 1978-08-15 Rca Corporation Machine for straightening the wire leads of a device
JPS57929U (fr) * 1980-05-31 1982-01-06
JPS57929A (en) 1980-06-03 1982-01-06 Akebono Brake Ind Co Ltd Dust cover for disc brake
JPS60255224A (ja) * 1984-05-30 1985-12-16 Nippon Denso Co Ltd 線材を真直する装置
JPS6122236A (ja) 1984-07-10 1986-01-30 Iseki & Co Ltd 検出センサ
JPS6122236U (ja) * 1984-07-16 1986-02-08 富士通テン株式会社 電子部品の整形装置
JPS6133725A (ja) * 1984-07-25 1986-02-17 Hitachi Ltd 線材の曲がり矯正装置
DE19927862A1 (de) * 1999-06-18 2000-12-21 Roehrig High Tech Plastics Ag Verfahren zum Betrieb einer Spritzgußform und eine nach dem Verfahren arbeitende Spritzgußform
JP2008205349A (ja) * 2007-02-22 2008-09-04 Tesetsuku:Kk 電子部品のリード矯正方法、矯正装置および矯正システム

Also Published As

Publication number Publication date
EP3774110A1 (fr) 2021-02-17
DE102018205662A1 (de) 2019-10-17
CN111989172A (zh) 2020-11-24
US11583916B2 (en) 2023-02-21
WO2019197323A1 (fr) 2019-10-17
US20210046539A1 (en) 2021-02-18

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