DE19748242B4 - Method for producing wire spools on winding bodies arranged in convex planes - Google Patents

Abstract

Method for producing wire coils on winding bodies arranged in convex planes, using wire feeds by means of a wind arm and pushing the produced wire winding onto the winding body, characterized
that with the help of the wind arm (1) first on a winding template (2) a single wire winding (4) is produced, wherein the winding plane (5) below the lower edge of Nutzahnes (8) and the coil wire by means of baffles (11) the adjacent winding body (7) is lifted,
that in the same winding plane (5) on the winding template (2) a further wire winding (4) while displacing the previously prepared wire winding (4) at the expense of a game (6) between the wire layer and the winding body (7) is produced, wherein the displaced wire windings (4) are shifted towards the bottom
that after reaching the desired number of windings at least the last wire winding (4) with increased wire traction while minimizing the game (6) between wire winding (4) and winding body (7) sliding back the last produced wire winding ...

Description

The The invention relates to a method for producing wire coils on arranged in convex planes winding bodies using Drahtzuführugen means Wind arm and pushing the produced wire winding on the Bobbin, as in electrical engineering especially for rational production needed by electric motors becomes.

substantial Labor requires the introduction of wire windings in the Packages of bobbins, in particular the stators of hub motors or the armature of electric motors.

To In the prior art, the mechanized production of the windings around bobbin on diverse Realized way. Dominant are leadership elements in the form of Guide points with the help of the wire to make a winding around the respective winding body is guided in each case through the groove between two adjacent winding bodies.

The use of guide needles waive procedures, for example according to DE 32 13 061 A1 which provide for the manufacture of the complete spool outside the package of wound bodies and the use of plungers for impressing the pre-wound spools into the grooves of the package.

Of the Disadvantage of this technical solution is that the complete prefabricated coil with special facilities so on the corresponding winding body must be deferred that the Risk of injury to individual wire windings when pushed on elevated is. About that addition will be added technical equipment needed to effect this postponement process. Finally, arrangements must be made additionally are taken to the sliding of the deferred wire coil from the winding body safe to prevent.

Another technical solution for producing coils on the winding bodies of an armature is with the DE 42 09 532 C1 announced. This solution also uses a device for guiding the winding wire through the grooves between the winding bodies. In addition, this technical solution proposal to use devices for holding down the individual wire windings, which remain in each case until the application of the next following winding in use.

The Variety of required procedures usually requires one computer-aided Use of robots. At the same time there is also the danger of causing this of insulation damage due to the use of wire guide devices in the grooves between the bobbins.

The The object of the invention is therefore to create a technical Solution, the the defects of the prior art overcomes and above all with low technical equipment Effort the cost-effective Making wire windings on bobbins allows.

The The object is achieved by the characterizing features of claim 1 solved.

After that Wire coils are arranged on convex planes arranged in winding bodies, in particular anchors of DC machines or stators of hub motors, by made that by means of wind arm Drawn wire windings and then pushed onto the winding body become.

According to the invention with the help of a wind arm first single wire windings made on a winding template.

The Wickelschablone consists of two tongues, the front side on arranged respective bobbin auszustattenden with a wire coil and are preferably conical.

Outside the bobbin is the template for the purpose of preventing slippage of the Winding wire of the tongues designed so that between the tongues and the rest Winding template forms a retaining edge.

The Winding plane of the wind arm is located below the lower edge the Nutzahnes. The retaining edge of the winding template is located about in height the lower edge of the Nutzahns.

In the same winding plane is then on the winding template a further wire winding with simultaneous displacement of the previously produced wire winding produced at the expense of a game between the wire layer and the winding body. In each case, the repressed Wire winding shifted to the lowest point.

To reaching the target winding number is at least the last Wire winding with raised Wire pulling force minimizing the play between wire winding and bobbin generated, whereby the sliding back prevents the last produced wire winding of the respective coil becomes.

After making all necessary Windings of the coil, the winding template is removed from the winding body and repositioned on the next bobbin.

With This procedure, the respective wire winding is made, without that one Wire guide device the groove between the bobbins must happen. Thus, essential prerequisites for preventing insulation damage to the bobbins ensured during manufacture.

A similar effect has the waiver of the so-called stuffing devices, which for the application the technical solutions are indispensable in the prior art.

With the choice of structural features of the winding template can be in the simplest way the dimensional Play between bobbins and determine clear dimensions of the coil. At the same time is with the winding template the displacement of the previously prepared windings supported in the grooves between the bobbins.

Alone by applying an increased wire pulling force in the manufacture of the last wire winding of a wire coil the positioning of the bobbin on the respective winding body ensured below the Nutzahns.

The Baffles, the lifting of the coil wire during manufacture the individual wire windings serve out of the grooves are arranged so that she not only cover the adjacent bobbins while doing a sliding surface for the form coil wire to form but also on the side of the bobbins so that they are folded if necessary, also when repositioning the package in this position can remain. The folds extend at least to below the wind arm described winding plane. As the retaining edge of the template Also located below the top of the bobbin, serves the other Design of the winding template outside of the tongue area to the fact that at Lifting the coil wire out of the groove of the already formed part of the Wire winding remains in the plane of the retaining edge. With the leadership of the Spool wire through the wrapping arm in the below the retaining edge arranged winding plane is moving the last in the Level of the retaining edge produced wire winding supported.

The Simplicity of the procedure leads Furthermore to the targeted cost reduction.

The Guiding plates are arranged on both sides in each case over the adjacent winding bodies and possess opposite the Nutzahn to be wound winding body only a clear Distance that is only slightly above the Wire thickness for the applied wire windings lies.

On this way it is excluded that it is temporarily inadequate Wire tension to touch with adjacent bobbins or to prevent the slip-in of the respective wire winding comes in the grooves between the bobbins.

In Another variant of the invention is the wire winding produced before displacing the subsequently produced wire winding at the retaining edge of the Winding template interposed. The retaining edge of the winding template is that region of the front side arranged on the winding bodies Winding templates, in which the greater taper of the winding template in a much smaller conicity or in the area of parallel to the front of the bobbin arranged tongues of the winding templates passes. This way will premature sliding of the wire winding into the grooves between the bobbins prevented. At the same time it comes to a remarkably dimensional Arrangement of the individual wire windings in the bobbin to be produced.

The needed Game between wire winding and the winding body as a result of the arrangement the winding template at the end faces of the bobbin is preferably predominantly outside of the package. It arises because the individual wire winding made approximately in the plane of the retaining edges of the winding template will and from there about which slides towards the end of the winding template towards tapering tongue on the winding body.

at the production of the last wire winding of a bobbin is preferably with an elevated Wire pulling force worked, reducing the arrangement of this wire winding of the bobbin is effected under the Nutzahn. The increased wire traction is in one particular embodiment the consequence of the repositioning of the package of the winding body relative to the Winder. This eliminates the need for expensive clamping devices. Yet In this way, the secure fixing of the bobbin produced on the winding body below ensured the Nutzahns.

It is possible, too, this fixation process by the brief lowering of the wind arm in the direction of Nuttiefsten after completion of the manufacture of a bobbin to cause. For this purpose, the wind arm is located approximately in the plane of the grooves or the longitudinal axis the bobbin.

Before the respective repositioning of the winding template on a winding body that is done Removing the winding template preferably characterized in that the winding template is lifted at least by the degree of their intervention in the radius of the package.

To After repositioning, the winding template is to be wound on Reeling core brought back into its working position. Repositioning can advantageously by the change in position of the package against the Winding device, for example by simply turning around fixed angle, be achieved.

To summarize the advantages the invention in that with comparatively low technical equipment and procedural effort on quality coils on wire in packages arranged bobbins can be produced. The risk of insulation injuries to be arranged in coils wires can be significantly reduced. Productivity at the Production of the wire coils arranged in convex planes bobbins let yourself across from decisively increase the known state of the art.

When Considerable further advantage of the invention is the possibility the use of standardized wire guiding equipment and wire winding producing wind arm structures for a variety of different types To look at winding tasks. The individual requirements for the concrete winding task are essentially by special winding templates and to realize baffle constructions.

It is also possible without problems, bobbin with entangled Grooves and greatest possible Packing density.

The Invention will be explained in more detail below with an exemplary embodiment.

In the attached drawing shows:

1 : the schematic longitudinal section of a winding body with end-side arranged winding template and rotating wind arm;

2 : The schematic cross section of a wound body with arrangement of baffles over the adjacent bobbins.

Embodiment:

According to the 1 and 2 become the bobbins 7 the stator of a hub motor with bobbins 3 fitted.

For this purpose, a winding device is used, the ortsunveränderlich above the package 10 the arranged in a concave plane winding body 7 is positioned.

The winding device used consists of a winding template 2 and a powered wind arm 1 for guiding the winding wire, supplemented by baffles 11 , The winding template 2 has two arms that are slightly larger in width than the width of the bobbin 7 in the plane of the useful teeth 8th on the front sides 13 the winding body 7 are arranged. The winding device is designed so that it is optional for a height adjustment of the winding template 2 and the baffles 11 or to an on-demand lowering of the axis of rotation of the bobbins 3 to be equipped package 10 can come.

The wind arm 1 the winding device has a wire guide, the winding plane 5 below the retaining edges 12 the winding template 2 and within the range of lateral bends of the baffles 11 located.

In the winding plane 5 have the arms of the winding template 2 a conicity that contributes to the tapering of the stencil ends to the retaining edge with more than 15 degrees.

The retaining edges 12 on the arms of the wrapping template 2 are located approximately at the level of the lower end of the Nutzähne 8th ,

The with a bobbin 3 to be equipped adjacent bobbin 7 are each with almost flat baffles 11 covered. They protrude to the Nutzähnen 8th to be wound bobbin 7 in that between the ends of the baffles 11 and the useful teeth 8th a distance of little more than the thickness of the coil wire used results.

After the positioning of the winding device to the with a bobbin 3 to be equipped bobbin 7 leads the wind arm 1 the bobbin 3 wire to be formed in the winding plane 5 so around the winding template 2 in that a preformed wire winding 4 results. While the wire to be formed in the case of alignment of the wind arm 1 parallel to the longitudinal axis of the bobbin 7 approximately in the plane of the retaining edges 12 is positioned, the further twisting of the wind arm 1 the wire from this plane by sliding onto the baffles 11 lifted. In this case, the front side of the already shaped wire on the retaining edge 12 the winding template 2 held. Subsequently, the coil wire slides from the baffle 11 again to the winding template 2 , wherein the wire positioned there of the previously produced wire winding 4 repressed becomes. This displacement process is assisted by the fact that the wind arm 1 the wire in the below the plane of the retaining edges 12 arranged winding plane 5 leads.

The transport of the manufactured in this way and at the retaining edges 12 the winding template 2 interposed wire winding 4 up to their intended end position takes place solely by producing the other required wire windings 4 of the bobbin 3 wherein, by producing a further wire winding 4 the previously made wire windings 4 in the direction of the axis of the package 10 of bobbins 7 be moved. Preferably, the ends of the winding template 2 below the retaining edges 12 as tongues 14 formed with a slight conicity of about 3 degrees.

After making the last wire wrap 4 and their intermediate positioning in the Eebene the retaining edges 12 becomes the wrapping template 2 from the package 10 lifted out and at the same time the package 10 , twisted by a fixed angle, whereby it due to the short-term increased wire traction to a reduction of the game 6 the last produced wire winding 4 on the winding body 7 and thus to a positioning of this wire winding 4 below the Nutzähne 8th comes.

A subsequent sliding of the bobbin 3 from the winding body 7 is thus safely prevented.

1

no wind

2

winding template

3

bobbins

4

wire winding

5

winding plane

6

game

7

bobbin

8th

Nutzahn

9

winding groove

10

package

11

baffle

12

retaining edge

13

front

14

tongue

Claims (7)

Method for producing wire spools on bobbins arranged in convex planes using wire feeds by means of a wind arm and pushing the produced wire winding onto the bobbin, characterized in that by means of the wind arm ( 1 ) first on a winding template ( 2 ) a single wire winding ( 4 ), wherein the winding plane ( 5 ) below the lower edge of the Nutzahnes ( 8th ) and the coil wire by means of baffles ( 11 ) over the adjacent winding bodies ( 7 ) is lifted, that in the same winding plane ( 5 ) on the winding template ( 2 ) another wire winding ( 4 ) while simultaneously displacing the previously produced wire winding ( 4 ) accepting a game ( 6 ) between the wire layer and the winding body ( 7 ), wherein the displaced wire windings ( 4 ) are shifted towards the lowest point of the groove so that after reaching the set number of turns at least the last wire winding ( 4 ) with increased wire pull while minimizing the game ( 6 ) between wire winding ( 4 ) and winding body ( 7 ) the sliding back of the last produced wire winding ( 4 ) is made to prevent that the winding template ( 2 ) then from the winding body ( 7 ) and at the next bobbin ( 7 ) is repositioned. Method according to claim 1, characterized in that before the repositioning of the winding template ( 2 ) on a winding body ( 7 ) the winding template ( 2 ) at least by the extent of its intervention in the radius of the package ( 10 ) is lifted out. Process according to Claims 1 and 2, characterized in that the wire winding produced ( 4 ) prior to displacement by the subsequently produced wire winding ( 4 ) on the retaining edge ( 12 ) of the winding template ( 2 ) is intermediately positioned. Process according to claims 1 to 3, characterized in that the game ( 6 ) between wire winding ( 4 ) and the winding body ( 7 ) as a result of the arrangement of the winding template ( 2 ) on the front sides ( 13 ) of the wound body ( 7 ) mostly outside the package ( 10 ) on the two end faces ( 13 ) of a bobbin ( 3 ) to be equipped bobbin ( 7 ) will be produced. Process according to claims 1 to 4, characterized in that the increased wire tensile force for the arrangement of the last wire winding ( 4 ) of the bobbin ( 3 ) under the Nutzahn ( 8th ) by repositioning the package ( 10 ) is effected. Process according to claims 1 to 4, characterized in that the increased wire tensile force for the arrangement of the last wire winding ( 4 ) of the bobbin ( 3 ) under the Nutzahn ( 8th ) by lowering the wind arm ( 1 ) in a parallel to the winding groove ( 9 ) aligned position is effected. Process according to claims 1 to 6, characterized in that the repositioning of the winding template ( 2 ) on the next winding body ( 7 ) by change of the package ( 10 ) of wound bodies ( 7 ) is made.