Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
  • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
  • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
  • H01F41/10—Connecting leads to windings
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
  • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
  • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
  • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
  • H01F41/06—Coil winding
  • H01F41/076—Forming taps or terminals while winding, e.g. by wrapping or soldering the wire onto pins, or by directly forming terminals from the wire
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/4902—Electromagnet, transformer or inductor
  • Y10T29/49071—Electromagnet, transformer or inductor by winding or coiling
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
  • Y10T29/5136—Separate tool stations for selective or successive operation on work
  • Y10T29/5137—Separate tool stations for selective or successive operation on work including assembling or disassembling station
  • Y10T29/5141—Separate tool stations for selective or successive operation on work including assembling or disassembling station and means to stake electric wire to commutator or armature in assembling of electric motor or generator
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
  • Y10T29/5147—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool
  • Y10T29/5148—Plural diverse manufacturing apparatus including means for metal shaping or assembling including composite tool including severing means
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
  • Y10T29/5187—Wire working

Definitions

• the present invention relates to a device for producing a coil winding from winding wire on a winding support with a winding head having a wire guide device and movable relative to the winding support. Furthermore, the invention relates to a method which can be carried out by means of this device for producing an electrically conductive connection.
• Devices of the type mentioned above can be used in the manufacture of coil arrangements in which a wire conductor is wound around the winding support by means of a winding head to form a coil winding and wire ends of the winding wire are connected to connection surfaces of the winding support or those of adjacent components.
• other devices namely a connecting device and a wire separating device, are required in addition to the winding head.
• the procedure can be such that first a wire end is connected to a connecting surface by means of the connecting device, then the actual coil winding is formed around the winding support by means of the winding head, and finally the running wire end of the The winding wire is connected to a further connection surface by means of the connecting device and is severed by means of the wire separating device.
• the present invention is based on the object of creating a generic device or a method which enables a construction which is as compact as possible and a shortening of the production times.
• the wire guide device, the connecting device and the wire separating device are integral devices of the winding head.
• Such a device virtually creates a highly integrated winding head which, in addition to the actual wire guiding function when winding a wire conductor on a winding support, also simultaneously the functions of connecting the wire ends to the winding support or another separate one ⁇ end face carrier and the final wire separation function takes over. Due to the combination in a structural unit, the entire device is a compact arrangement, so that in one and the same relative position with respect to the connection surface of the connection surface carrier, both the Connection of the wire conductor to the pad as well as cutting the wire conductor can be done. As a result, there are no intermediate routes in connection production, which occur because the wire guide device in devices according to the prior art has to be guided from a connection device to a separating device.
• the device according to the invention is particularly suitable for producing coil arrangements, that is to say both for carrying out a winding process and for carrying out the connection technology
• the device according to the invention can equally advantageously be used very generally where it matters to create connections between a wire conductor and a connection surface at certain points and to guide the wire conductor in the intermediate region with the winding / connecting device according to the invention, referred to here as the winding head, on a predetermined movement path from one connection point to the other connection point.
• a winding process does not have to be carried out in every case, but with a corresponding axis control of the winding / connecting device, a meandering course in one plane or any other wire course between two connecting points can be generated.
• the wire guide device, the connecting device and the wire separating device are combined in one tool head, the actuating or delivery elements necessary for the individual devices being arranged outside the tool head.
• This structure means a miniaturization which enables the use of the device according to the invention even with the smallest connection areas, such as the connection areas of a chip which are only 100 micrometers x 100 micrometers as standard.
• a wire deflection device is preferably assigned to the wire guide device, which makes it possible to deflect a wire conductor that is supplied approximately parallel to the connecting device, transversely to the feed axis of the connecting device, so that the wire conductor comes to rest between the connecting device and the connecting surface when the connection is made.
• connection device is not limited to a particular type, but rather that any of the range of connection devices available, such as a thermode, a thermo-electronic connection device, a laser welding device etc., or a combination thereof.
• a laser welding device When using a laser welding device, such a device proves to be advantageous, as is described in DE-OS 42 00492, in which the laser power emitted by a laser source is passed directly to the connection point by means of a glass fiber conductor.
• a laser welding device When such a laser welding device is used together with the device according to the invention, there is the particular advantage that the winding head itself does not have to be loaded by the device device forming the laser source, but rather can be arranged in a stationary manner away from the winding head.
• the fiber optic cable can then be used as a connection device can be integrated in the winding head. This makes it possible to use a high-performance laser welding device in the device according to the invention without disadvantageously increasing its mass by the device device mentioned above.
• the wire guide device can be combined with the connecting device, for example in the case of a thermosonic bonding head as the connecting device, the wire is fed through a capillary in the bonding head.
• the separating device in a functional unit which is then composed of a wire guide device, connecting device and wire separating device.
• An example of this would be a thermosonic bonding head provided with a wire guide capillary, which also has a separating edge formed in the wire contact area. This would allow a high level of integration to be achieved.
• the wire deflection device is preferably formed from a suction device acting transversely to the feed axis of the wire guide device.
• a suction air connection in the area of the connection device is required to implement it, which causes the wire conductor fed through the wire guide device approximately parallel to the feed axis of the connection device due to the suction force transverse to the feed axis of the connection device Connection device is deflected so that the connection Binding device can act on the wire conductor, for example by applying heat and pressure in the case of a thermode.
• wire deflection device with a gripping device which can be pivoted transversely to the feed axis of the connecting device.
• a possible embodiment of a wire deflecting device which is similar in principle, but still preferable in terms of the achievable compactness, consists in making the wire guide device itself pivotable transversely to the feed axis of the connecting device, in order then to cooperate with the connecting surface of the connecting surface carrier on which the wire conductor strikes, to cause such a deflection of the wire conductor that the wire conductor comes to lie between the connecting device and the connection surface.
• the device according to the invention is constructed in such a way that the actuating or feed elements assigned to the individual devices are arranged in a tool head carrier which can be coupled to the tool head.
• a connection device of a certain type for example, the thermocompression method for a connection on a connection surface of a Kapton film and for a chip connection Closing surface of the thermo-electronic process as advantageous, and a combination of these processes is also conceivable. Irrespective of the choice of the connecting device, however, one and the same actuating or delivery element can always be used. Apart from a simple and quick tool head change, this has a favorable effect on the tool preparation costs.
• actuating or delivery organs There are various possibilities for the execution of the actuating or delivery organs.
• they can be designed as compressed air actuators, such as piston / cylinder units, or as solenoid actuators.
• This further wire guide device can be integrated in the connecting device.
• a further advantageous measure for example to establish or increase the connection compatibility between the wire conductor material and the pad material, can consist in providing a protective gas supply device in the area of the connection device.
• a protective gas supply device in the area of the connection device.
• Another possible alternative is to provide a vacuum device in the area of the connecting device, for example by surrounding the entire tool head with a vacuum bell.
• the protective gas supply device can also be assigned a coating device which enables an application of a protective layer to the connection point, for example the application of a passivation layer as corrosion protection, preferably while the protective point is being applied to the connection point.
• a camera in particular a CCD camera, which can be attached to the tool head itself or also to the tool head carrier. Depending on the type of attachment, the camera can also be integrated into the tool head or the tool head carrier.
• the device according to one or more of claims 1 to 16 is used to connect a bondable wire conductor directly to the unbumped connection areas of an electronic component, such as a chip.
• the wire is connected approximately directly to the aluminum pads, without bumps having been applied to them beforehand.
• a bondable winding wire preferably a copper bonding wire, is used as the wire conductor. This makes it possible to use the device according to the invention only for winding coils, and then to establish a direct connection with an unbound pad with the same wire.
• connection between the wire and the connection surface takes place in a protective gas atmosphere or under vacuum in order to increase the quality of the connection.
• FIG. 1 shows the device according to the invention in a first embodiment with a tool head coupled to a tool head carrier;
• FIG. 2 in an enlarged partial representation after the winding of a coil and the connection of winding wire ends on connection surfaces of a coil carrier;
• 3 A to 3 C show the tool head carrier in different configurations which follow one another in time to form a wire conductor connection
• FIG. 4 shows a schematic illustration of the tool head in a first variation of the tool head shown in FIG. 1; 5 shows a schematic illustration of the tool head in a further variation of the tool head shown in FIG. 1.
• FIG. 1 shows, in a first embodiment, a winding / connecting device 10 with a tool head carrier 11 and a tool head 12.
• the tool head 12 is detachably connected to the tool head carrier 11 via a connecting element designed here as a connecting sleeve 13.
• the connecting sleeve 13 has in its end region facing the tool head carrier 11 an internal thread 14 which interacts with an external thread of the tool head carrier 11 (not shown in more detail).
• the tool head 12 has a tool holder 15 with tool devices accommodated and guided therein, namely a wire guide device 16, a connecting device 17, a wire separating device 18 and a wire deflecting device 19.
• the devices mentioned are at their upper end in FIG. 1 with pneumatic piston / cylinder units provided as feed organs 21, 22, 23 provided.
• Damping devices 25 can be provided between piston rods 24 of the piston / cylinder units 21, 22, 23 and the ends of the devices 16, 17, 18, as exemplified for the wire cutting device 18.
• the devices 16, 17, 18 are not coupled directly to the pistons / cylinders. linder units 21, 22, 23 but via the damping devices 25.
• FIG. 1 shows the winding / connecting device 10 in a winding configuration in which the wire guide device 16 is in a position advanced from the tool holder 15.
• a winding wire 26 or generally a wire, with which a wire connection between two connection surfaces is to be created is passed through the tubular wire guide device 16.
• the winding / connecting device 10 can be used in the usual way as a winding head which can be moved in one or more axes in space or generally as a wire guide head.
• the winding / connecting device 10 shown in FIG. 1 In order to use the winding / connecting device 10 shown in FIG. 1 to connect the wire 26 to a connecting surface (not shown in FIG. 1) after a winding process or with the free wire end 27 fixed in another way the tool head 12 first moves in the direction of the arrow 28 and the wire guide device 16 moves into the tool head 12 by actuating the piston / cylinder unit 21. As a result, the wire 26 rests on the underside of the tool head, so that the connecting device 17 can be moved out of the tool head 12 until it lies against the connecting surface with the interposition of the wire 26. Depending on the distance of the tool head 12 from the connection surface, the winding / connecting device 10 can are moved forward in the direction of the feed axis 20.
• the separating device 18 is extended, which in the exemplary embodiment shown in FIG. 1 has the form of a separating knife in order to cut the wire 26 close to the connection point.
• FIG. 2 This configuration of the winding / connecting device 10 is shown in FIG. 2.
• the wire guide device 16 is in the retracted position and the connecting device 17 and the wire separating device 18 are in the advanced position.
• the configurations of the winding / connecting device 10 are then intended when a wire connection is carried out, for example to fix the wire end on a connecting surface before carrying out a subsequent winding process or for a wire connection connection between connection surfaces.
• the wire guide device 16, the connecting device 17 and the wire separating device 18 are initially in a completely retracted position and release a channel 30 running transversely to the feed axis 20.
• the wire conductor 26 fed through the wire guide device 16 is brought into a position transverse to the feed axis 20 by the wire deflecting device 19 embodied here as a suction device, with its free wire end Wire feed can be prevented by the wire guide device by means of a clamping device.
• a device can also be provided in order to thread the wire into the wire guide device in an air-supported manner through nozzle flows.
• the connecting device 17 is extended until it lies against a connecting surface 29 with the interposition of the wire 26. In this position, the wire 26 is now connected to the connection surface 29.
• the wire cutting device 18 is also extended so that the wire 26 can be separated by the cutting device 18 near the connection point. The severed wire end is then sucked off by the suction device 19. -.._ ⁇ .
• FIG. 2 shows an example of a possible application of the winding / connecting device 10 according to the invention in its use in the manufacture of a watch spool 31, which is used in electrically operated watches, and a winding support 32 with a coil winding arranged thereon 33 has.
• the connection surfaces of the watch coil 31 are formed by means of a so-called "Kapton film” 34, which consists of a plastic film with metallization layers 35, 36 applied thereon.
• 2 shows two connection points 37, 38 on the metallization layers 35, 36, at which winding wire ends 39, 40 are connected to the metallization layers 35, 36.
• the watch spool 31 shown in FIG. 2 can be produced by means of the winding / connecting device 10 according to the invention by first, as shown in FIGS.
• a first connection of the winding wire 26 to the first metallization layer 35 takes place with the formation of the connection point 37.
• the coil winding 33 is then carried out by superimposing a rotational movement of the winding support 32 about its longitudinal axis and a translational movement of the tool head 12 in the direction of the arrow 41 and back.
• the second one Wire connection is carried out at the connection point 38 and the wire 26 is cut off.
• FIG. 4 shows a tool head 56 with a wire feed device 42 which can be pivoted about an articulation point 43 transversely to the feed axis 20 of the tool head.
• 4 shows the wire guide device 42 both in its winding position oriented essentially parallel to the feed axis 20 and in the pivoted state.
• the pivotability of the wire guiding device 42 makes it possible to dispense with a separate deflecting device. Rather, in the embodiment shown in FIG. 4, the winding wire 26 is guided through a wire feed with the wire guide device 42 pivoted onto a connecting surface 44 and deflected thereon. In this position, a connecting device 45 that can be moved in the direction of the infeed axis can be moved up to the connection surface 44, the wire 26 between the connection surface 44 and a contact surface. before 46 of the connecting device 45 comes to rest.
• the connecting device 45 is designed such that a further wire guiding device 47, for example in the form of a channel, is formed in it to guide an additional wire 48 onto the connecting surface 44, so that the wire 26 is connected with the connection surface 44 can take place simultaneously with the connection of the additional wire 48 with the connection surface 44.
• This additional wire 48 can be such that the connection of poorly connectable or connection-incompatible materials of the wire 26 and the connecting surface 44 is made possible. It is also possible to match the material of the additional wire 48 to the materials to be connected so that special corrosion protection or insulation is provided to the outside.
• the wire cutting device was not shown in FIG. 4.
• FIG. 5 shows in a further variant a schematically illustrated tool head 49 which, similar to the tool head 12 shown in FIG. 1, has a wire guide device 50, a connecting device 51 and a wire separating device 52.
• the tool head 49 has a deflection device 53 which consists of a gripping device which can be pivoted about an articulation point 54 belonging to the tool head 49.
• a deflection device 53 which consists of a gripping device which can be pivoted about an articulation point 54 belonging to the tool head 49.

Landscapes

• Engineering & Computer Science (AREA)
• Power Engineering (AREA)
• Manufacturing & Machinery (AREA)
• Magnetic Heads (AREA)
• Wire Processing (AREA)
• Coil Winding Methods And Apparatuses (AREA)
• Manufacturing Cores, Coils, And Magnets (AREA)
• Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
• Wire Bonding (AREA)

Applications Claiming Priority (5)

Publications (2)

Family

ID=25926324

Family Applications (1)

Country Status (7)

Cited By (1)

Families Citing this family (21)

Family Cites Families (18)

• 1994
  • 1994-04-08 DE DE59401482T patent/DE59401482D1/de not_active Expired - Lifetime
  • 1994-04-08 ES ES94911841T patent/ES2096462T3/es not_active Expired - Lifetime
  • 1994-04-08 EP EP94911841A patent/EP0700575B1/fr not_active Expired - Lifetime
  • 1994-04-08 AT AT94911841T patent/ATE147190T1/de not_active IP Right Cessation
  • 1994-04-08 WO PCT/DE1994/000395 patent/WO1994028562A1/fr not_active Ceased
  • 1994-04-08 US US08/569,182 patent/US6023837A/en not_active Expired - Lifetime
  • 1994-04-08 JP JP50008195A patent/JP3190345B2/ja not_active Expired - Fee Related

Non-Patent Citations (1)

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