DE102019219481A1 - Tool for separating and setting wire ends of a winding as well as a method for producing a winding - Google Patents

Abstract

In a tool (100) for separating and setting wire ends (118) of a winding, the winding being formed from a plurality of wire elements which form the wire ends, with a first and a second tool part (130, 160), the first The tool part (130) has a first plurality of receptacles (132) on its inner circumference (139) facing the second tool part (160) for receiving a first plurality of wire ends and the second tool part having a second outer circumference (169) facing the first tool part Having a plurality of receptacles (162) for receiving a second plurality of wire ends, the first and second tool parts can be rotated relative to one another in the circumferential direction (106) of the tool for setting the wire ends, wherein in the circumferential direction between the first plurality of receptacles and / or the second plurality of receptacles a plurality of radially aligned loading webs (155) for spacing de r wire ends in the radial direction (104) of the tool is provided.

Description

State of the art

The present invention relates to a tool for separating and setting wire ends of a winding for an electrical machine, the winding being formed from a plurality of wire elements which form the wire ends.

Tools for separating and tools for setting wire ends of wire elements for producing windings for electrical machines are known from the prior art. In a tool for separating, corresponding wire ends of wire elements are spaced apart from one another in the radial direction. After separating, the wire elements are removed from the tool for separating and arranged in a tool for setting for setting. When setting, radially outer and inner wire ends are then bent relative to one another in the tool for setting. As an alternative to this, the two processes can also be carried out in reverse order so that separation can also take place after setting.

Disclosure of the invention

The present invention relates to a tool for separating and setting wire ends of a winding for an electrical machine, wherein the winding is formed from a plurality of wire elements that form the wire ends, with a first and a second tool part which are arranged concentrically to one another the first tool part has a first plurality of groove-shaped receptacles for receiving a first plurality of wire ends on its inner circumference facing the second tool part, and the second tool part having a second plurality of groove-shaped receptacles for receiving a second plurality of wire ends on its outer circumference facing the first tool part , wherein the first and second tool parts are rotatable relative to one another in the circumferential direction of the tool for setting the wire ends, and wherein in the circumferential direction between the first plurality of groove-shaped receptacles and / or the second plurality of groove-shaped Recordings a plurality of radially aligned loading webs is provided for spacing the wire ends in the radial direction of the tool.

The invention thus makes it possible to provide a single tool in which the wire ends of wire elements can be separated and set, whereby a complicated and time-consuming tool change can be avoided.

The first tool part and / or the second tool part preferably has the loading webs.

A compact tool can thus be provided in which wire ends can be pre-separated in a simple and uncomplicated manner.

According to one embodiment, a separating element which can be displaced in the axial direction of the tool is provided for forming a gap in the radial direction of the tool between the first and second plurality of wire ends.

A gap can thus be formed safely and reliably, which can preferably serve as an electrical parting plane in a winding to be produced accordingly.

An actuating element for displacing the separating element in the axial direction of the tool is preferably assigned to the separating element.

An actuation of the separating element can thus be made possible in a simple manner.

A first and second intermediate tool part are preferably provided in the radial direction of the tool between the first and second tool part, each having a plurality of radial penetration openings for arranging wire ends of the first and / or second plurality of wire ends in the circumferential direction of the tool / or the second intermediate tool part at least partially in each case has the radially aligned loading webs.

A robust and stable arrangement of the loading webs on the tool for separating and setting wire ends can thus be made possible in a simple and uncomplicated manner.

The first plurality of groove-shaped receptacles, the second plurality of groove-shaped receptacles and the plurality of radial access openings are preferably arranged uniformly and evenly spaced from one another in the circumferential direction of the tool and are provided in an identical number.

A suitable arrangement of the wire ends on the tool for separating and setting can thus be made possible in a simple manner.

The first and / or second tool part and the first and / or are preferred second intermediate tool part each assigned an actuating element for rotating in the circumferential direction of the tool.

An uncomplicated and comfortable operation can thus be made possible, with each tool part or intermediate tool part being able to be rotated separately.

According to one embodiment, the first tool part and the first intermediate tool part as well as the second tool part and the second intermediate tool part can each be rotated synchronously with one another for interleaving the wire ends.

Setting can thus be made possible safely and reliably, wherein the wire ends assigned to the first tool part and the first intermediate tool part and the wire ends assigned to the second tool part and the second intermediate tool part can each be bent or set together.

1. a) Zumindest teilweises Anordnen von Drahtenden in zugeordneten nutförmigen Aufnahmen eines Werkzeugs, wobei eine erste Mehrzahl von Drahtelementen in der ersten Mehrzahl von nutförmigen Aufnahmen des ersten Werkzeugteils des Werkzeugs angeordnet werden und/oder eine zweite Mehrzahl von Drahtenden in der zweiten Mehrzahl von nutförmigen Aufnahmen des zweiten Werkzeugteils des Werkzeugs angeordnet werden,
2. b) Vorseparieren der Drahtenden durch ein erstes Verdrehen zumindest des ersten oder zweiten Werkzeugteils des Werkzeugs in Umfangsrichtung des Werkzeugs, wobei die erste und zweite Mehrzahl von Drahtenden in radialer Richtung beabstandet werden,
3. c) Separieren der ersten und zweiten Mehrzahl von Drahtenden durch ein in axialer Richtung des Werkzeugs gerichtetes Verschieben des Separierelements des Werkzeugs zur Ausbildung eines Spalts, insbesondere einer elektrischen Trennebene, und
4. d) Schränken der Drahtenden durch ein zweites Verdrehen des ersten und/oder zweiten Werkzeugteils des Werkzeugs in Umfangsrichtung des Werkzeugs.

In addition, the present invention provides a method for producing a winding for an electrical machine with the following steps:

1. a) At least partial arrangement of wire ends in assigned groove-shaped receptacles of a tool, a first plurality of wire elements being arranged in the first plurality of groove-shaped receptacles of the first tool part of the tool and / or a second plurality of wire ends in the second plurality of groove-shaped receptacles of the second tool part of the tool are arranged,
2. b) pre-separating the wire ends by first rotating at least the first or second tool part of the tool in the circumferential direction of the tool, the first and second plurality of wire ends being spaced apart in the radial direction,
3. c) separating the first and second plurality of wire ends by moving the separating element of the tool in the axial direction of the tool to form a gap, in particular an electrical parting plane, and
4. d) setting the wire ends by rotating the first and / or second tool part of the tool a second time in the circumferential direction of the tool.

Thus, a method for producing a winding for an electrical machine is provided, in which the wire ends of the winding are separated and set in a single tool.

Acting webs are preferably arranged on the first and / or second tool part, which spacing the first and second plurality of wire ends apart in the radial direction during pre-separation by pressing the wire ends into the associated groove-shaped receptacles and / or access openings.

Pre-separation can thus be made possible in a simple manner.

According to one embodiment, the separating element is immersed in the tool during the separation in the axial direction of the tool, at least up to the impingement webs.

A pre-separation can thus be made possible easily and without complications.

A further separating step is preferably provided in which the separating element is immersed in the tool after the at least one rotated first and / or second tool part has been rotated back into its starting position in the axial direction of the tool to enlarge the gap beyond the impact webs.

A suitable complete separation as well as a subsequent, simplified setting can thus be made possible.

When setting, the first and second tool parts are preferably rotated in opposite directions of rotation.

Thus, a cupboard can be made possible in a simple and uncomplicated manner.

Brief description of the drawings

• 1 eine perspektivische Ansicht eines Werkzeugs zum Separieren und Schränken von Drahtenden sowie eines Stators mit Drahtenden,
• 2 eine Schnittansicht der Drahtenden im Werkzeug von 1 vor einem Vorseparieren,
• 3 eine perspektivische Ansicht des Werkzeugs von 2 vor einem Vorseparieren,
• 4 eine Schnittansicht der Drahtenden im Werkzeug von 1 und 2 bei einem Vorseparieren,
• 5 eine perspektivische Ansicht des Werkzeugs von 4 bei einem Vorseparieren,
• 6 eine Schnittansicht der Drahtenden im Werkzeug von 1 bis 5 bei einem Separieren,
• 7 eine perspektivische Ansicht des Werkzeugs von 6 bei einem Separieren,
• 8 eine Schnittansicht der Drahtenden im Werkzeug von 1 bis 7 bei einem weiteren Separieren,
• 9 eine perspektivische Ansicht des Werkzeugs von 8 bei einem weiteren Separieren,
• 10 eine perspektivische Ansicht der Drahtenden nach einem Schränken,
• 11 eine perspektivische Ansicht des Werkzeugs von 1 bis 9 von einer ersten Seite aus betrachtet, und
• 12 eine perspektivische Ansicht des Werkzeugs von 11 von einer der ersten Seite gegenüberliegenden zweiten Seite aus betrachtet.

The invention is explained in more detail in the following description on the basis of exemplary embodiments shown in the drawings. Show it:

• 1 a perspective view of a tool for separating and setting wire ends and a stator with wire ends,
• 2 a sectional view of the wire ends in the tool of FIG 1 before a pre-separation,
• 3 FIG. 3 is a perspective view of the tool of FIG 2 before a pre-separation,
• 4th a sectional view of the wire ends in the tool of FIG 1 and 2 with a pre-separation,
• 5 FIG. 3 is a perspective view of the tool of FIG 4th with a pre-separation,
• 6th a sectional view of the wire ends in the tool of FIG 1 to 5 when separating,
• 7th FIG. 3 is a perspective view of the tool of FIG 6th when separating,
• 8th a sectional view of the wire ends in the tool of FIG 1 to 7th in the event of a further separation,
• 9 FIG. 3 is a perspective view of the tool of FIG 8th in the event of a further separation,
• 10 a perspective view of the wire ends after setting,
• 11 FIG. 3 is a perspective view of the tool of FIG 1 to 9 viewed from a first side, and
• 12th FIG. 3 is a perspective view of the tool of FIG 11 viewed from a second side opposite the first side.

Description of the exemplary embodiments

In the figures, elements with the same or comparable function are provided with identical reference symbols and are only described once in more detail.

1 shows a tool 100 with first and second axial ends 101 , 102 for separating and setting wire ends 118 one winding ( 600 in 10 ) for an electrical machine and a stator core 110 with a plurality of wire elements 116 who have favourited the wire ends 118 train and the winding ( 600 in 10 ) to shape. According to one embodiment, the wire elements are 116 U-shaped. There is one wire element each 116 two of the wire ends 118 assigned. Alternatively, the wire elements 116 For example, it can also be designed in an I-shape, with one wire element in each case 116 a single wire end 118 assigned, etc.

The stator core 110 preferably has an at least approximately ring-shaped basic shape, with a plurality of grooves on its inner circumference 112 are provided. The grooves 112 are to accommodate the wire elements 116 educated. Illustrative are in the grooves 112 Insulating elements 114 arranged. The insulating elements 114 are preferably designed as insulating paper.

According to the in 1 The embodiment shown are the grooves 112 as described above on the inner circumference of the stator core 110 educated. However, it should be noted that the grooves 112 also on the outer circumference or as recesses in the stator core 110 can be formed.

It is preferred in the radial direction 104 a groove 112 a predetermined number of wire elements of the plurality of wire elements 116 arranged. Illustrative are in each groove 112 as many wire elements of the plurality of wire elements 116 arranged that exactly eight wire ends 118 from every groove 112 stick out.

The tool 100 is preferred for separating and setting the wire ends 118 formed and preferably has at least a first and a second tool part 130 , 160 which are illustratively arranged concentrically to one another. The first and second tool parts are preferably 130 , 160 in the circumferential direction 106 of the tool 100 for setting the wire ends 118 rotatable relative to each other.

Here, the first tool part 130 on his the second tool part 160 facing inner circumference 139 preferably a first plurality of groove-shaped receptacles 132 for receiving a first plurality of wire ends ( 220 in 2 ) on. Analogously to this, the second tool part 160 on his the first tool part 130 facing outer circumference 169 preferably a second plurality of groove-shaped receptacles 162 for receiving a second plurality of wire ends ( 222 in 2 ) on.

It is preferred in the circumferential direction 106 between the first plurality of groove-shaped receptacles 132 and / or the second plurality of groove-shaped receptacles 162 a plurality of radially aligned impingement webs 155 intended. The radially aligned loading webs 155 are for separating or spacing the wire ends 118 in the radial direction 104 of the tool 100 educated.

According to one embodiment, the first and / or second tool part 130 , 160 the loading bars 155 on. In particular, the loading webs are 155 on the first and / or second tool part 130 , 160 arranged, preferably formed in one piece with this. The first and second tool parts preferably have 130 , 160 each has an annular base body 131 , 161 on. Here are the groove-shaped recordings 132 , 162 of the first and second tool parts 130 , 160 at one of the second axial ends 102 of the tool 100 facing end arranged.

The moreover one is the tool 100 preferably one in the axial direction 105 of the tool 100 movable separating element 170 assigned. The separating element 170 shows one cylindrical body 171 on. The separating element is preferred 170 to form a gap ( 410 in 4th ) in the radial direction 104 of the tool 100 between the first and second plurality of wire ends ( 220 , 222 in 2 ) educated. The separating element 170 has at its the second axial end 102 of the tool 100 facing end preferably web-like separating sections 175 on.

The separating sections are preferred 175 one point each 176 assigned. It is preferably between two in the circumferential direction 106 adjacent separating sections 175 one recess each 172 arranged. In addition, it is preferred in each case on a radially inner side of the separating section 175 a recess or franking 177 arranged.

The recesses 177 are preferably used when the separating sections 175 in the axial direction over the loading webs 155 must be moved beyond. In this case, it can be guaranteed that the loading webs in the subsequent cabinets 155 each in corresponding recesses 177 can immerse and thus the second intermediate tool part 150 relative to the separating element 170 can be twisted.

Illustrative are in the radial direction 104 of the tool 100 between the first and second tool parts 130 , 160 a first and second intermediate tool part 140 , 150 intended. The first and / or second intermediate tool part 140 , 150 can alternatively also in the first and / or second tool part 130 , 160 be integrated and each have, for example, an annular base body 141 , 151 on. Furthermore, the first and second intermediate tool parts 140 , 150 each in the circumferential direction 106 of the tool 100 a plurality of in the radial direction 104 trained or radial penetration openings 142 , 152 for arranging wire ends 118 the first and / or second plurality of wire ends ( 220 , 222 in 2 ) on. Here, the first and / or second intermediate tool part 140 , 150 at least partially in each case the radially aligned loading webs 155 on.

The loading webs can preferably 155 on the first and / or second tool part 130 , 160 and / or on the first and / or second intermediate tool part 140 , 150 be arranged. In addition, the loading bridges are 155 preferably at one of the second axial ends 102 facing end 159 of the first and / or second tool part 130 , 160 and / or on the first and / or second intermediate tool part 140 , 150 arranged.

The loading bars are illustrative 155 at the end 159 of the second intermediate tool part 150 arranged. The loading webs 155 along an entire circumference of the respective parts or of the first and / or second tool part 130 , 160 and / or the first and / or second intermediate tool part 140 , 150 be arranged. However, the loading bars 155 also only in the circumferential direction 106 in sections on the first and / or second tool part 130 , 160 and / or on the first and / or second intermediate tool part 140 , 150 be arranged.

The first plurality are preferably groove-shaped receptacles 132 , the second plurality of groove-shaped receptacles 162 and the plurality of radial access openings 142 , 152 in the circumferential direction 106 of the tool 100 each arranged uniformly and preferably evenly spaced from one another, and provided in an identical number. In addition, the separating element 170 preferably between the first and second intermediate tool part 140 , 150 arranged. Here is the recording 177 of the separating section 175 preferably for receiving a loading web in sections 155 educated.

In a process for making a winding ( 600 in 10 ) for an electric machine becomes the tool 100 with its second axial end 102 in the axial direction 105 in the area of the wire ends 118 arranged. In this case, wire ends are preferably at least partially arranged ( 211-218 in 2 ) in assigned groove-shaped receptacles 132 , 162 or. 132 , 142 , 152 , 162 of the tool 100 . A first plurality of wire ends ( 220 in 2 ) in the first plurality of groove-shaped receptacles 132 of the first tool part 130 of the tool 100 arranged and / or a second plurality of wire ends ( 222 in 2 ) is in the second plurality of groove-shaped receptacles 162 of the second tool part 160 arranged.

Then the wire ends are pre-separated ( 211-218 in 2 ) by first turning at least the first or second tool part 130 , 160 in the circumferential direction 106 of the tool100. The first and second plurality of wire ends ( 220 , 222 in 2 ) in the radial direction 104 spaced.

The loading webs preferably act upon them 155 when pre-separating the first and second plurality of wire ends ( 220 , 222 in 2 ) in the radial direction 104 by pressing on the wire ends 118 into the associated groove-shaped receptacles 132 and / or access openings 142 . Furthermore, the separating element 170 when pre-separating in the axial direction 105 at least up to the loading webs 155 in the tool 100 immersed.

It is pointed out, however, that a movement of the separating element 170 up to the loading bars 155 depending on the application, it can already be sufficient to form a gap which is required in each case. In this case, after the pre-separation there is no further separation step carried out as described below, but rather the complete separation has already taken place through the pre-separation.

In a further process step, the first and second plurality of wire ends are separated ( 220 , 222 in 2 ) by one in the axial direction 105 of the tool 100 directional displacement of the separating element 170 to form a gap ( 410 in 4th ) between the first and second plurality of wire ends ( 220 , 222 in 2 ). An electrical parting plane is preferred here ( 412 in 4th ) educated.

In this case, the separating element is preferably used for complete separation 170 after turning back the at least one rotated first and / or second tool part 130 , 160 after the pre-separation in its starting position in the axial direction 105 to enlarge the gap ( 410 in 4th ) over the loading bars 155 out into the tool 100 immersed.

Subsequently, in a final process step, the wire ends are preferably set ( 211-218 in 2 ) by rotating the first and / or second tool part a second time 130 , 160 in the circumferential direction 106 of the tool 100 . The first and second tool parts are preferred when setting 130 , 160 twisted in opposite directions of rotation.

2 shows the stator core 110 of 1 with the wire ends 118 , as well as the tool 100 of 1 with the first and second tool part 130 , 160 , the first and second intermediate tool parts 140 , 150 , as well as the separating element 170 . Illustratively and by way of example, the plurality of wire ends have 118 eight wire ends 211-218 on. The wire ends 211-218 are in the radial direction 104 arranged. The four radially outer wire ends form the wire 211-214 a first plurality of wire ends 220 , and the four radially inner wire ends 215-218 form a second plurality of wire ends 222 out.

The wire ends are preferred 211-218 at least partially in the tool 100 arranged. In the in 2 The basic position shown are the wire ends 217 and 218 in the recording 162 of the second tool part 160 arranged, and the wire ends 215 and 216 are in the through opening 152 of the second intermediate tool part 150 arranged. The wire ends 211-214 are preferably in the area of the separating element 170 arranged.

It also clarifies 2 one through the inclusion 132 of the first tool part 130 and the through hole 142 of the first intermediate tool part 140 trained recording 299 .

3 shows the one in the through hole 152 of the second intermediate tool part 150 and the recording 162 of the second tool part 160 of 1 arranged wire ends 215-218 of 2 . Furthermore clarified 3 the arrangement of the wire ends 211-214 outside of the recording 132 or the passage opening 142 of the first tool part 130 or the first intermediate tool part 140 . Also clarified 3 the arrangement of the separating element 170 of 1 illustrative in the axial direction 105 (see 1 ) above the wire ends 211-218 . Furthermore, those are preferably the second intermediate tool part 150 assigned loading webs 155 in the circumferential direction 106 (see 1 ) between the first and second plurality of wire ends 220 , 222 arranged.

4th shows the stator core 110 of 1 with the wire ends 211-218 of 2 , as well as the tool 100 of 1 . In 4th became the second intermediate tool part 150 in the circumferential direction 106 (see 1 ) twisted so that the wire ends 211-214 through the loading bars 155 into the through openings 142 be applied. This represents the pre-separation process.

By way of example, there is a rotation in the circumferential direction 106 of 1 by about 3 °, exemplarily counterclockwise. It is pointed out, however, that a corresponding angle of rotation can vary depending on a particular type of stator to be produced and the angle of 3 ° specified here is only an example and should not be seen as a limitation of the present invention. This is done between the wire ends 214 and 215 A gap 410 educated. The gap is preferred 410 between the first and second plurality of wire ends 220 , 222 educated.

The gap becomes illustrative 410 shaped such that two equal numbers of wire ends 211-218 separated from each other. However, it should be noted that the gap 410 also at any other position in the radial direction 104 can be trained.

In addition, there is also the option of that within the tool 100 multiple column 410 and / or parting lines 412 can be generated. The column 410 and / or parting lines 412 through a large number of additional tool parts or intermediate tool parts with loading bars 155 or. Separating elements 170 can be produced with different diameters. This also increases the required number of required tool parts and / or intermediate tool parts accordingly.

5 shows the pre-separated wire ends 211-218 of 4th , with the wire ends 211-214 through the loading bars 155 in the radial direction 104 radially outwards or into the through opening 142 were applied. Furthermore clarified 5 by twisting the second intermediate tool part 150 in the circumferential direction 106 twisted wire ends 215 and 216 . The second intermediate tool part is preferred 150 and the second tool part 160 twisted synchronously with each other, so that in 5 the wire ends 215-218 together in the circumferential direction 106 relative to the wire ends 211-214 are arranged twisted.

6th shows the separating step of the production method according to a first variant, wherein the separating element 170 of 1 in the gap 410 is immersed. The tip acts on it 176 of the separating element 170 the wire ends 211-214 in the recording 132 or the through opening 142 .

The top is preferred 176 with her the loading webs 155 facing end on the loading webs 155 in the axial direction 105 (see 1 ) at. By separating according to the first variant, the gap became 410 enlarged, so that an electrical parting plane is preferred 412 is trained.

7th shows the separated wire ends 211-218 of 6th , with the wire ends 211-214 , as in 6th described by the separating element 170 in the recording 132 or the through opening 142 be applied. Furthermore clarified 7th those in the circumferential direction 106 to the wire ends 211-214 twisted wire ends 215-218 .

8th shows an alternative and optional separating step according to a second variant, in which the second intermediate tool part 150 back to the starting position of 2 is turned back. In the starting position, the separating element 170 of 1 in the axial direction 105 (see 1 ) over the loading bars 155 out, especially past them, into the gap 410 be immersed. Thereby the wire ends 211-214 further into the recording 132 or the through opening 142 applied. The separating element 170 is preferably with its inclusion 177 in the area of the loading bridges 155 arranged, wherein the separating element 170 remains in this position even with a subsequent cabinet.

9 shows the further step of separating 8th and illustrates the arrangement of the separating sections 175 between two in the circumferential direction 106 neighboring loading webs 155 of the second intermediate tool part 150 . By turning back to the home position of 2 are the wire ends 211-218 in the radial direction 104 arranged at the same height or aligned not offset to one another.

10 shows the stator core 110 of 1 as well as the wire ends 211-218 of 2 after a cupboard. The first tool part is preferred for setting 130 and the first intermediate tool part 140 together in one circumferential direction 106 twisted and / or the second intermediate tool part 150 and the second tool part 160 are in an opposite circumferential direction 106 twisted. As an example, it is rotated by, for example, 5 ° in the circumferential direction 106 . It is pointed out, however, that a corresponding angle of rotation can vary depending on a particular type of stator to be produced and the angle of 5 ° given here is only an example and should not be seen as a limitation of the present invention. become the first tool part 130 and the first intermediate tool part 140 as well as the second tool part 160 and the second intermediate tool part 150 each rotated synchronously with each other.

The setting creates a winding as an example 600 educated. Illustrative are in 10 the wire ends 211-214 counterclockwise bent or set and the wire ends 215-218 have been bent or set clockwise. Between the wire ends of the first plurality of wire ends 220 and the second plurality of wire ends 222 is the gap 410 educated. The loading bars move when the cabinet is set 155 in the circumferential direction 106 through the recordings 177 of the separating element 170 (see. 9 ).

11 shows an exemplary embodiment of the tool 100 with the first and second tool part 130 , 160 , the first and second intermediate tool parts 140 , 150 , as well as the separating element 170 of 1 .

12th shows the tool 100 of 11 and clarifies actuating elements 530 , 540 , 550 , 560 , 570 for actuating the first and / or second tool part 130 , 160 , the first and / or second intermediate tool part 140 , 150 and / or the separating element 170 . The separating element is preferred 170 an actuator 570 to move the separating element 170 in the axial direction 105 of 1 assigned. The actuating element is preferably 570 by a pneumatic cylinder in the axial direction 105 postponed.

In addition, the first and / or second tool part 130 , 160 , and the first and / or second intermediate tool part 140 , 150 one actuator each 530 , 560 , 540 , 550 for turning in the circumferential direction 106 assigned. Preferably the first tool part 130 the actuator 530 assigned and the second tool part 160 is the actuator 560 assigned. In addition, the first intermediate tool part 140 the actuator 540 assigned and the second intermediate tool part 150 is the actuator 550 assigned.

According to one embodiment, the actuating elements 530 , 560 , 540 , 550 , 570 an annular base body. Furthermore, the actuating elements 530 , 540 , 550 , 560 , 570 preferably via connecting elements, in particular pins and / or screws, with the respectively assigned tool part 130 , 160 , Intermediate tool part 140 , 150 and / or separating element 170 connected.

In addition, the actuators 530 , 540 , 550 , 560 preferably in the axial direction 105 in 1 secured by screw elements. Furthermore, pins for torque transmission are preferably arranged. In this case, a form-fitting power transmission for torque transmission is formed.

It should be noted that the first tool part 130 and the first intermediate tool part 140 via a common actuating element in the circumferential direction 106 can be rotatable and / or the second tool part 160 and the second intermediate tool part 150 via a common actuating element in the circumferential direction 106 can be arranged rotatably. Due to the design with the four actuating elements 530 , 540 , 550 , 560 the individual tool parts 130 , 160 or intermediate tool parts 140 , 150 can also be rotated separately and in different directions.

Claims (13)

Tool (100) for separating and setting wire ends (118) of a winding (600) for an electrical machine, the winding (600) being formed from a plurality of wire elements (211-218) which form the wire ends (118), with a first and a second tool part (130, 160) which are arranged concentrically to one another, the first tool part (130) having a first plurality of groove-shaped receptacles (132) for receiving on its inner circumference (139) facing the second tool part (160) a first plurality of wire ends (220) and wherein the second tool part (160) has a second plurality of groove-shaped receptacles (162) for receiving a second plurality of wire ends (222) on its outer circumference (169) facing the first tool part (130) wherein the first and second tool parts (130, 160) are rotatable relative to one another in the circumferential direction (106) of the tool (100) for setting the wire ends (118), and wherein in the circumferential direction (106) between the first plurality of groove-shaped receptacles (132) and / or the second plurality of groove-shaped receptacles (162) a plurality of radially aligned impact webs (155) for spacing the wire ends (118; 220, 222) is provided in the radial direction (104) of the tool (100). Tool after Claim 1 , characterized in that the first tool part (130) and / or the second tool part (160) has the impact webs (155). Tool after Claim 1 or 2 , characterized in that a separating element (170) displaceable in the axial direction (105) of the tool (100) to form a gap (410) in the radial direction (104) of the tool (100) between the first and second plurality of wire ends (220 , 222) is provided. Tool after Claim 3 , characterized in that the separating element (170) is assigned an actuating element (570) for moving the separating element (170) in the axial direction (105) of the tool (100). Tool according to one of the preceding claims, characterized in that a first and second intermediate tool part (140, 150) are provided in the radial direction (104) of the tool (100) between the first and second tool parts (130, 160), each in the circumferential direction (106) of the tool (100) have a plurality of radial penetration openings (142, 152) for the arrangement of wire ends of the first and / or second plurality of wire ends (220, 222), wherein the first and / or second intermediate tool part (140, 150 ) at least partially each have the radially aligned loading webs (155). Tool after Claim 5 , characterized in that the first plurality of groove-shaped receptacles (132), the second plurality of groove-shaped receptacles (162) and the plurality of radial access openings (142, 152) in the circumferential direction (106) of the tool (100) each uniformly and uniformly are arranged spaced from each other and provided in an identical number. Tool after Claim 5 or 6th , characterized in that the first and / or second tool part (130, 160) and the first and / or second intermediate tool part (140, 150) each have an actuating element (530, 560, 540, 550) for rotating in the circumferential direction (106) of the Tool (100) is assigned. Tool after one of the Claims 5 to 7th , characterized in that the first tool part (130) and the first intermediate tool part (140) as well as the second tool part (160) and the second intermediate tool part (150) for interleaving the wire ends (211-218) can each be rotated synchronously with one another. Method for producing a winding (600) for an electrical machine, comprising the following steps: a) At least partial arrangement of wire ends (211-218) in associated groove-shaped receptacles (132, 162) of a tool (100) according to one of the Claims 1 to 8th , wherein a first plurality of wire elements (220) are arranged in the first plurality of groove-shaped receptacles (132) of the first tool part (130) of the tool (100) and / or a second plurality of wire ends (222) in the second plurality of groove-shaped Receptacles (162) of the second tool part (160) of the tool (100) are arranged; b) pre-separating the wire ends (211-218) by first rotating at least the first or second tool part (130, 160) of the tool (100) in the circumferential direction (106) of the tool (100), the first and second plurality of wire ends ( 220, 222) are spaced apart in the radial direction (104), c) separating the first and second plurality of wire ends (220, 222) by moving the separating element (170) of the tool in the axial direction (105) of the tool (100) (100) for forming a gap (410), in particular an electrical parting plane (412), and d) setting the wire ends (211-218) by rotating the first and / or second tool part (130, 160) of the tool (100) a second time ) in the circumferential direction (106) of the tool (100). Procedure according to Claim 9 , characterized in that acting webs (155) are arranged on the first and / or second tool part (130, 160) which, when pre-separating, the first and second plurality of wire ends (220, 222) in the radial direction (104) by acting on the wire ends (220, 222) in the associated groove-shaped receptacles (132) and / or through openings (142). Procedure according to Claim 9 or 10 , characterized in that the separating element (170) is immersed in the tool (100) during separation in the axial direction (105) of the tool (100) at least up to the application webs (155). Method according to one of the Claims 9 to 11 , characterized in that a further separating step is provided in which the separating element (170) after the at least one rotated first and / or second tool part (130, 160) has been rotated back into its starting position in the axial direction (105) of the tool (100) is immersed in the tool (100) to enlarge the gap (410) beyond the impact webs (155). Method according to one of the Claims 9 to 12th , characterized in that when setting the first and second tool parts (130, 160) are rotated in opposite directions of rotation.

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