Winding device and method for manufacturing an arrangement for an electric machine

Abstract

Winding device (1) for producing an arrangement for an electric machine with several winding carriers (111, 112, 113) and a winding made of wire material arranged thereon, wherein each of the several winding carriers (111, 112, 113) is assigned a partial winding (121, 122, 123), comprising - a winding tool (3) with - a base (31) which is rotatable about a first axis of rotation (S), - a receiving device (35) which is configured to hold a support unit (101) with the several winding carriers (111, 112, 113); and - a boom (33) radially offset to the first axis of rotation (S), which is connected to the base (31) and on which the receiving device (35) is rotatably mounted about a second axis of rotation (T), - wherein the second axis of rotation (T) is aligned perpendicular to the first axis of rotation (S), - a drive device (5) associated with the winding tool (3), which is configured to provide a rotary drive movement; and further comprising - a coupling device (7) for selectively transmitting the rotary drive motion from the drive device (5) to the winding tool (3) for rotating the receiving device (35) about the first axis of rotation (S) or the second axis of rotation (T), wherein the coupling device (7) determines whether the carrying unit (101) is rotated about the first axis of rotation (S) or about the second axis of rotation (T).

Description

[0001] The invention relates to a winding device and a method for manufacturing an arrangement for an electric machine with several winding carriers and a winding arranged thereon. The invention relates in particular to a device and a method for winding pole chains or externally slotted stators or rotors. background

[0002] Toothed chains can be wound in a winding device by attaching the individual teeth to a toothed chain holder, adjacent to each other at an angular offset, to form a pole chain and winding them sequentially. A servo-motorized switching mechanism can be used to move a specific tooth into the winding position. The switching mechanism is located beneath the winding device. It is raised to first grasp the toothed chain holder, remove a wound tooth from the winding position, and then move another tooth into the winding position. The winding device can then be used again to wind the other tooth. The investment, maintenance, and process time required for using such switching mechanisms are substantial.

[0003] US 4,558,835 A, DE 10 2004 007 475 A1, DE 10 2010 026 527 A1 and DE 10 2011 011 809 A1 describe devices and methods for applying a winding wire. DE 11 2005 003 615 T5 relates to a design and a manufacturing method for a rotary motor equipped with an armature core and a commutator. JP 2003-244 906 A relates to a method for manufacturing a rotating electrical machine for a motor or a generator.

[0004] AT 514 839 B1 relates to a winding machine for winding a tape onto a winding sleeve.

[0005] DE 32 17 592 A1 relates to a transmission arrangement with a main shaft and with one or more individual transmissions. Summary

[0006] The object of the invention is to provide improved technologies for the production of coil windings for a toothed chain, which forms an externally slotted stator, rotor or part of an externally slotted stator or rotor, or also individual teeth for an internally slotted stator or rotor, with which, in particular, effective and efficient winding is made possible.

[0007] To solve the problem, a winding device for manufacturing an arrangement for an electric machine is provided. Such arrangements have several winding carriers and a winding made of wire material arranged on them. A winding carrier can, in particular, be realized by a toothed segment, preferably electrically insulated. The winding carriers can be attached to a support unit, in particular a toothed chain mount. The winding consists of partial windings. Each of the several winding carriers is assigned a respective partial winding.

[0008] The winding device comprises a winding tool and a drive unit associated with the winding tool. The winding device according to the present disclosure further comprises a coupling device. The winding tool has a base, a boom, and a receiving device. The base is rotatable about a first axis of rotation, which may also be referred to as the spindle axis. Preferably, the spindle axis is horizontally oriented. The receiving device is configured to hold the support unit with the multiple winding carriers. The support unit can be star-shaped and have winding carriers adjacent to one another in the circumferential direction of the support unit. The boom is at least partially radially offset from the first axis of rotation and connected to the base. The receiving device is rotatably mounted on the boom about a second axis of rotation. The second axis of rotation may also be referred to as the changeover axis or drum axis.The second axis of rotation is oriented transversely, preferably perpendicularly, to the first axis of rotation. For changing positions, the axis of rotation can be oriented vertically. Preferably, the support unit is rotatable about the drum axis and rigidly connected or connectable to the receiving device. It is preferable that the receiving device is configured to hold the support unit such that its central and / or symmetry axis is preferably continuously coaxial with the second axis of rotation. The drive device is configured to provide a rotary drive motion. Preferably, the drive device is implemented by a winding spindle. The coupling device is configured to transmit the rotary drive motion from the drive device to the winding tool in order to rotate the receiving device about the first or the second axis of rotation.The use of a coupling device, which selectively transmits the drive motion from one and the same drive unit to rotate the fixture with its attached or attachable support unit around the first or second axis of rotation, eliminates the need for a servo-motor switching mechanism. This saves the investment costs for the servo-motor switching mechanism. Furthermore, it has been shown that faster winding cycles can be achieved with such a winding device.

[0009] According to one embodiment, the coupling device is designed to assume a first position (winding position) for transmitting the rotary drive motion from the drive unit to the winding tool for rotating the receiving device about the first axis of rotation, or a second position (reversing position) for transmitting the rotary drive motion from the drive unit to the winding tool for rotating the receiving device about the second axis of rotation. It can be provided that, in the winding position, the coupling device forms a first rotationally fixed connection between the drive unit and the winding tool, and in the reversing position, a second rotationally fixed connection between the drive unit and the winding tool, which differs from the first.

[0010] The coupling device can include a displacement component, preferably movable translationally and in particular displaceable along the spindle axis, such as a sliding sleeve. The sliding sleeve can, for example, be cylindrical and surround the base in an annular manner, preferably coaxially with the spindle axis. In the first position, i.e., the winding position, the displacement component connects the base to the drive unit in a rotationally fixed manner. In the second position, i.e., the switching position, the displacement component holds the base in a fixed position against a stopper.

[0011] In preferred embodiments, the coupling device may include a transmission means for transferring the rotary drive movement from the drive unit to the receiving unit, particularly for transferring the rotary drive movement to the receiving unit when the coupling device is in the switching position. Preferably, in the switching position, the base is detached from the drive unit. In the winding position, at least one of the transmission means may be non-rotatably connected to the base. In the switching position, the base may also be detached from the transmission means, for example, by means of a rotary bearing, such as a ball bearing, provided between the base and the transmission means. This allows the transmission means, at least partially, to perform a rotational movement about the spindle axis caused by the drive unit while the base remains stationary.In particularly preferred embodiments, the transmission means are housed within the winding tool, in particular in the base and / or in the boom.

[0012] The transmission means can include a transfer element, such as a cardan shaft, for transferring the rotary drive motion away from the first axis of rotation. The transfer element preferably has a drive shaft aligned coaxially with the spindle axis for receiving the rotary drive motion and an output shaft offset radially, particularly parallel, to the drive axis for transmitting the rotary drive motion.

[0013] Alternatively, the output axis can be angled obliquely to the drive axis (tilted relative to the projection of the spindle axis) and radially offset. This design makes the winding space even more easily accessible. The transfer element can also include an intermediate axis connecting the drive axis to the output axis. Alternatively or additionally, the transmission elements can include a deflection element, particularly a self-locking one, such as a worm gear, for redirecting the rotary drive motion by a deflection angle. The deflection element can, for example, be configured to redirect the rotary drive motion around the spindle axis or an output axis offset from the spindle axis into a rotary drive motion around the drum axis, which is oriented transversely, preferably perpendicularly, to the spindle axis.

[0014] Optionally, the winding device can further include an actuator, particularly a pneumatic one, designed to actuate the coupling device. The actuator can be implemented by an indexing circuit. Preferably, the actuator is configured to move the coupling device from the switching position to the winding position or vice versa. The actuator can have a spring return. The actuator can preferably be connected to a piston element that is coupled to the displacement component.

[0015] According to one aspect, the receiving device together with the support unit is rotatable around the first axis of rotation with a predetermined winding carrier aligned corresponding to the first axis of rotation.

[0016] It may be preferred that the support unit on the receiving device is rotatable about the second axis of rotation in order to align any one of the winding carriers corresponding to the first axis of rotation.

[0017] The support unit is preferably selected from the following group: externally slotted core of a stator, externally slotted core of a rotor, support unit with pole teeth of a pole chain and support unit with a star arrangement of support elements.

[0018] The invention also relates to a method for manufacturing an arrangement for an electric machine with a support unit having several winding carriers and a winding made of wire material arranged thereon, wherein each of the several winding carriers is assigned a partial winding.

[0019] In the method, preferably initially, a winding device is provided with a winding tool which is configured to receive a support unit, and a drive device associated with the winding tool which is configured to provide a rotary drive movement.

[0020] The method comprises arranging a support unit with several winding carriers on the winding tool. In the method, preferably first, a first winding carrier is arranged in a winding position corresponding to a first axis of rotation. The support unit, thus held on the winding tool with the aligned first carrier body, is rotated by the rotary drive about the, preferably horizontal, first axis of rotation to produce a first partial winding on the first winding carrier. Then, particularly after the first partial winding has been produced, the support unit held on the winding tool is rotated by the rotary drive about a, preferably vertical, second axis of rotation to arrange a second winding carrier in a winding position corresponding to the first axis of rotation (changeover).As the support unit rotates around the second axis of rotation, the first winding carrier is moved out of its winding position. After the changeover, the support unit, held on the winding tool, is rotated around the first axis of rotation by the rotary drive motion to create a second partial winding on the second winding carrier. Finally, the support unit is released from the winding tool. The winding for the assembly is then complete. By using the same rotary drive motion for both rotation around the first and second axes, an additional servo-driven machine is no longer required. This eliminates the need for servo-motor components, which are costly to purchase and maintain. Surprisingly, this also allows for shorter production cycles.

[0021] The method according to the present disclosure is preferably carried out using the winding device according to the present disclosure. In particular, the winding device according to the present disclosure is designed and configured to carry out the method according to the present disclosure.

[0022] In preferred embodiments, the support unit held on the winding tool is also rotated about a second axis of rotation, driven by the rotary drive movement, in order to position a third winding carrier in a winding position corresponding to the first axis of rotation, replacing the second winding carrier. During this rotation, the second winding carrier is preferably displaced from its winding position. The support unit held on the winding tool is then rotated about the first axis of rotation, again driven by the rotary drive movement, to produce a third partial winding on the third winding carrier. These rotational processes relating to the second and third winding carriers are preferably carried out before the support unit is detached from the winding tool.If the process involves processing a support unit with additional winding carriers that are to be covered with further partial windings, this can be repeated as often as necessary. Optionally, the rotation can be superimposed with further movements in the axial and / or radial direction relative to the drum and / or pivot axis. Alternatively or additionally, rotation in different directions can be performed, at least partially. This can be used, for example, to adjust connecting wire lengths between tooth segments, or to create different connecting wire lengths between adjacent tooth segments when manufacturing individual teeth that are detachably held on the support unit.

[0023] In preferred embodiments, a first rotationally fixed connection between the winding tool and the drive unit can be formed to rotate the support unit about the first axis of rotation, preferably while the second rotationally fixed connection described below is released. A second rotationally fixed connection between the winding tool and the drive unit can also be formed to rotate the support unit about the second axis of rotation, preferably while the first rotationally fixed connection is released. A coupling device, particularly as described above, is preferably used to form the first or second rotationally fixed connection. In particular, a movable displacement component, such as a sliding sleeve, which is displaceable along the spindle axis, can be actuated to form and release the first rotationally fixed connection.It may be particularly preferred that the coupling device is designed to shift the rotating drive motion for rotating the support unit about the second axis of rotation away from the first axis of rotation and / or to deflect it transversely, in particular perpendicularly, to the first axis of rotation.

[0024] Preferably, in this process, a support unit from the following group is selected and arranged on the winding tool: externally slotted core of a stator, externally slotted core of a rotor, support unit with pole teeth of a pole chain and support unit with a star arrangement of winding carriers. Description of exemplary implementations

[0025] Further examples of implementation are explained in more detail below with reference to figures in a drawing. These figures show: Fig. 1 A schematic side view of a winding device in partial section, wherein a winding tool is rotatable about a first axis of rotation; Fig. 2 a schematic front view of the winding device made of Fig. 1; Fig. 3 another schematic view of the winding device Fig. 1; Fig. 4 a schematic side view of the winding device Fig. 1, wherein the winding tool is rotatable about a second axis of rotation; Fig. 5 a schematic front view of the winding device Fig. 4; Fig. 6 another schematic view of the winding device Fig. 4; and Fig. 7 a schematic sectional view of an alternative winding device.

[0026] The Fig. Figure 1 shows a winding device, generally designated by reference numeral 1. The winding device 1 according to the present disclosure comprises as essential components a winding tool 3, a drive device 5 and a coupling device 7.

[0027] The winding device 1 is designed to hold a support unit 101 and to wind a wire 2 around winding carriers 111, 112, 113 held on the support unit 101 in order to form a winding. For this purpose, a partial winding 121, 122, 123 is successively formed on each of the several winding carriers 111, 112, 113. The first partial winding 121 on the first winding carrier 111 and the second partial winding 122 on the second winding carrier 112 are formed using the same wire 2. A third partial winding 123 on a third winding carrier 113, as well as optionally further partial windings on other winding carriers, can also be formed using the same wire 2.

[0028] In the present disclosure, a first partial winding 121 on the first winding carrier 111 and a second partial winding 121 on the second winding carrier 112 are described by way of example, whereby it is clear to the person skilled in the art that the winding device 1 and the winding method carried out with it can be used for third and, if necessary, further partial windings.

[0029] The support unit 101 is generally a support unit 101 with a star arrangement of winding carriers 111, 112, 113. The support unit 101 with winding carriers 111, 112, 113 can, for example, be an externally slotted core of a stator or an externally slotted core of a rotor. Alternatively, the support unit 101 can be equipped with winding carriers in the form of pole teeth for a pole chain.

[0030] During the process of manufacturing an arrangement for an electrical machine, the support unit 101 with the attached winding carriers 111, 112 and 113 is continuously held by the winding tool 3. By means of the winding tool 3, the support unit 101, held by it, is rotated around a first axis of rotation, which for the sake of simplicity is referred to below as the spindle axis S, to form a partial winding 121, 122 or 123 around each winding carrier 111, 112 or 113.

[0031] To form the arrangement for an electric machine, the first winding carrier 111 is first brought into a winding position. For this purpose, the respective winding carrier 111, 112 or 113 is aligned correspondingly, preferably parallel, to the spindle axis S and then rotated about the spindle axis S, as shown in the Fig. 1 and Fig. 3 indicated. For example, while the first winding carrier 111 is aligned parallel to the spindle axis S and is rotated around the spindle axis S using the winding tool 3, the wire 2 is wound around the first winding carrier 111, thereby forming the first partial winding 121, as shown in the Fig. 1 - 3 indicated by arrows.

[0032] When the partial winding, i.e., according to this example, the first partial winding 121, has been completed around the respective winding support (here: the first winding support 111), the support unit 101, which remains firmly connected to the winding tool 3, is rotated by means of the same winding tool 3 about a second axis of rotation, which is subsequently referred to as the drum axis T, as shown in the Fig. 4 - 6 are indicated by arrows. By rotating the support unit 101 about the drum axis T, the first winding carrier 111 is moved out of its winding position, which is aligned with the spindle axis S. The second winding carrier 112 is then aligned with the spindle axis S in place of the first winding carrier 111. Now, to form the second partial winding, a rotation 122 around the second winding carrier 112 can be performed about the spindle axis S. The spindle axis S can preferably be continuously horizontally oriented. During the change in the orientation of the winding carriers, the drum axis T is preferably vertically oriented.

[0033] In the winding device and winding method according to the present disclosure, the rotation of the support unit 101 about the spindle axis S, as well as the rotation of the support unit 101 about the drum axis T, is effected by the same drive device 5, wherein a coupling device 7 is provided which determines whether the winding support 101 is rotated about the spindle axis S or about the drum axis T. The coupling device 7 can optionally cause a rotary drive movement to be transmitted from the drive device 5 to the winding tool 3 in such a way that the entire winding tool, together with the support unit 101, rotates about the spindle axis S, or in such a way that only a receiving part of the winding tool 3, with the support unit 101 attached to it, which can also be referred to as the receiving device 35, is rotated about the drum axis T.

[0034] In the preferred embodiment of the disclosure illustrated by the accompanying drawings, the coupling device 7 is in a state which is described in the Fig. Figures 1-3 are shown in a first position, which can be described as a coiled position. In a position described in the Fig. In the state of the winding device 1 shown in figures 4-6, the coupling device 7 is in a second position, which can be described as the changeover position.

[0035] During the Fig. In the preferred embodiment of a winding device 1 shown in Figures 1-6, the winding tool 3 comprises a base 31, a boom 33 and a receiving device 35 arranged on the boom 33.

[0036] The base 31 surrounds the spindle axis S. The base 31 comprises a sleeve body 30. The sleeve body 30 is preferably substantially cylindrical. The axis of symmetry of the sleeve body 30 can lie on the spindle axis S. A tongue-and-groove connection 34, a toothed ring, or similar feature can be provided on the outside of the sleeve body 30 for the linear guidance of a displacement component 73, such as the sliding sleeve shown here. The sliding sleeve is part of the coupling device 7. The sliding sleeve is translationally movable on the outside of the base 31 parallel to the spindle axis S and rotationally fixed to the base 31.

[0037] The coupling device 7 further comprises a stopper 71 fixed to a frame 11 of the winding device 1, which is guided by the sliding sleeve 73 in the Fig. The condition shown in Figures 1-3 is released. If the sliding sleeve 73 is not in contact engagement with the stopper 71, the sliding sleeve 73 can rotate together with the base 31 relative to the stationary frame 11. The coupling device 7 is in a first position or winding position as long as the stopper 71 is released from the displacement component 73.

[0038] In the Fig. Figures 4-6 show a second position of the coupling device 7, in which the displacement component 73 is in contact engagement with the stopper 71. In this second position, or changeover position, the displacement component 73 is rotationally fixed to the stationary frame 11 of the device 1. The rotationally fixed connection between the displacement component 73 and the base 31 of the winding tool 3 remains, so that in the changeover position of the coupling device 7, the base 31 is rotationally fixed to the stationary frame 11 of the device 1. In the changeover position of the coupling device 7, the base 31 is not rotatable about the spindle axis S.

[0039] The arm 33 of the winding tool 3 is rotationally fixed to the base 31. The arm can, for example, be manufactured integrally with the base 31, joined to it by a material bond, screwed on as shown, or otherwise rotationally fixed to the base 31. The arm extends in a direction parallel to the spindle axis S. The arm 33 extends from the base 31 in a prong-like manner. Unlike the base shown here, which is preferably arranged and / or shaped substantially concentrically with respect to the spindle axis S, the arm 33 is arranged eccentrically with respect to the spindle axis S.

[0040] The boom 33 comprises at least one base section 36, which is arranged radially offset relative to the spindle axis S. The radial offset between the spindle axis S and the base section 36 is preferably matched to the support unit 101 and the winding carriers 111, 112, 113 attached thereto, preferably such that the radial offset of the spindle axis S and the base section 36 corresponds to approximately half the width of the support unit 101 and / or the winding carriers 111, 112, 113. The radial offset between the base section 36 of the boom 33 can preferably be matched to the winding carrier 111 such that the spindle axis S intersects the winding carriers 111, 112, 113 centrally with the support unit 101 held on the winding tool 3.

[0041] A receiving device 35 is held on the boom 33, which is offset radially to the spindle axis S. The receiving device 35 is connected to the base 31 and is rotatable about the drum axis T relative to the base 31. For rotatable mounting of the receiving device 35 on the boom 33, a ball bearing 37 or other rotary bearing can, for example, be arranged in the base section 36, as in the Fig. 2 and Fig. 6 indicated.

[0042] The second axis of rotation T can also be referred to as the change axis or turret axis. By rotating the support unit 101, which is carried by the receiving device 35, about the change axis T, one of the winding carriers 111, 112 or 113 fixed to it can be selectively aligned corresponding to the spindle axis S.

[0043] Preferably, the receiving device 35 is continuously rotatable about the drum axis T. By means of a preferably continuously variable rotation, the receiving device 35 can assume different rotational positions relative to the stationary frame 11 and the spindle axis S, allowing different winding carriers to be positioned using the same receiving device 35. For example, the receiving device 35 can be used for different support units with different numbers of winding carriers, or for different support units whose adjacent winding carriers have different rotational offsets relative to each other. The number of winding carriers on the support unit can be, for example, three, four, five, seven, or any other number.

[0044] The receiving device 35 is rotatable about the drum axis T. The receiving device 35 can, for example, be formed by a mandrel or a shaft that is or can be connected to the support unit 101 in a rotationally fixed manner. The receiving device 35 comprises a rotating body that is rotatably fixed to the arm 33 about the drum axis T. When the winding tool 3, i.e., the base 31 together with the arm 33, rotates about the spindle axis S, the receiving device 35 also rotates. With respect to the spindle axis S, the receiving device 35, including its rotating body, is fixed to the arm 33 in a rotationally fixed manner.

[0045] The second axis of rotation T is oriented transversely to the first axis of rotation S. It may be preferred that the second axis of rotation D is oriented perpendicular to the first axis of rotation T. Preferably, the second axis of rotation T intersects the first axis of rotation S. The second axis of rotation T preferably extends radially with respect to the first axis of rotation S. From the boom 33 and its base section 36, which is offset radially to the spindle axis S, the receiving device 35 can extend radially inwards and intersect the spindle axis S. In the embodiment shown here, the boom 33 extends obliquely in sections between the base section 36 and the base 31, radially outwards from the spindle axis S.

[0046] The drive unit 5 drives a drive shaft 51 of the winding device, which is arranged and shaped coaxially with the spindle axis S. The drive shaft 51 can be designed as a hollow shaft. The drive shaft has an output piece 53 that is arranged inside the sleeve body 30. By means of the output piece 53, a rotary drive motion provided by the drive unit 5 can be transmitted to the winding tool 3.

[0047] The coupling device 7 can establish a rotationally fixed connection between the base 31 and the output piece 53 in the winding position and release the rotationally fixed connection between the output piece 53 and the base 31 in the switching position.

[0048] The coupling device 7 can comprise a piston element 72, which is connected to, for example, a pneumatic actuator 8 via an actuating rod 82. The actuating rod 82 can extend through the drive device 5 and be housed within the hollow drive shaft 51. The actuator 8 can, for example, be a pneumatic actuator, in particular an indexing switch. The piston element 72 is fixedly connected to the displacement component 73 in the axial direction of the spindle axis and rotatably connected with respect to the spindle axis S in order to move the displacement component back and forth between the winding position and the switching position. The pin, which is fixedly anchored in the piston element 72 and extends radially to the spindle axis S in a spoke-like manner, can rotate in a groove in the displacement component 73.

[0049] Fig. Figure 4 shows the displacement component 73 in the changeover position, in which the displacement component 73 holds the base 31 of the winding tool 3 fixedly on the frame 11 by means of the stopper 71. In the changeover position, the rotary drive movement of the drive unit 5 is not transmitted to the base 31, but instead causes a rotation of the receiving unit 35 with the support unit 101 about the drum axis T. In the changeover position, the coupling unit 7 connects the drive unit 5 to the receiving unit 35.

[0050] To actuate the receiving device 35, the coupling device 7 comprises transmission means 75 and 77, which transmit the rotary drive motion from the drive device 5 to the receiving device 35. The transmission means 75 and 77 are preferably housed inside cavities in the base 31 and the boom 33. The displacement means 77 (illustrated here by way of example as a cardan shaft) is housed partly within the base 31 and partly within the boom 33. The deflection means 75, illustrated as a worm gear, is housed entirely within the base section 36 of the boom 33.

[0051] Transmission means 75, 77 are provided to transmit the rotary drive motion of the spindle drive 5 to the receiving device 35, which is rotatable about the drum axis T in the base section 36, which is offset radially to the spindle axis S. In the illustrated exemplary embodiment, the transmission means comprise a displacement means 77, which is configured to displace the rotary drive motion away from the first axis of rotation S, in particular from a drive axis A aligned coaxially to the first axis of rotation S to an output axis C, which is offset radially to the spindle axis S, in particular parallel to it. The displacement means 77 can, for example, be implemented as a recirculating ball drive, as shown, in which an inclined intermediate axis B bridges the radial offset between the output axis C and the drive axis A.

[0052] Additionally or alternatively, the transmission means can include a deflection means 75. The deflection means 75 can be designed and configured to deflect the rotary drive motion from a rotation about the spindle axis S or a rotary drive motion offset parallel to the spindle axis S about an output axis C into a rotary motion transverse, in particular perpendicular, to the spindle axis S about the drum axis T. The deflection means 75 can be implemented as a worm gear as shown, or alternatively as another type of gear, for example a helical gear, or in another manner. Preferably, the deflection means 75 is self-locking so that, during winding operation, when the support unit 101 held on the receiving device 35 rotates about the spindle axis S, evasive movements of the receiving device 35 about the drum axis T are prevented.

[0053] To rotate the receiving device 35 together with the support unit 101 about the drum axis T, the rotary motion is transmitted from the output piece 53 to the transfer element 77. The transfer element 77 transmits the rotary drive motion to the deflection element 75. The deflection element 75 drives the rotating body of the receiving device 35 and thereby also the support unit 101. By rotating the receiving device 35 about the drum axis T, the support unit 101 can be moved from a first orientation, in which the first winding carrier 111 is aligned with the spindle axis S, to a second orientation, so that the second winding carrier 112 is aligned with the spindle axis S. By continuing to rotate the receiving device 35, each subsequent winding carrier 113, etc., can be moved into a winding position aligned with the spindle axis S.

[0054] Fig. Figure 7 shows an alternative embodiment of a winding device 1, which is essentially the same as the one described above and can optionally be combined with it, so that, to avoid repetition, reference is made to the previous descriptions, especially regarding the Fig. 1 and Fig. 4 is referred to. In contrast, the one in Fig. The winding device 1 shown in Figure 7 differs essentially only in that the output axis C is aligned at an angle relative to the spindle axis S. The output axis C is also aligned at an angle to the drive axis A. This orientation of the output axis C makes the winding chamber particularly easy to access.

[0055] The features disclosed in the foregoing description, the claims and the drawing can be important for the realization of the various embodiments, both individually and in any combination.

Claims

[1] Winding device (1) for producing an arrangement for an electrical machine with a plurality of winding supports (111, 112, 113) and a winding made of wire material arranged thereon, wherein a respective partial winding (121, 122, 123) is assigned to the plurality of winding supports (111, 112, 113), comprising - a winding tool (3) with - a base (31) which is rotatable about a first axis of rotation (S), - a receiving device (35) which is arranged to hold a support unit (101) with the plurality of winding carriers (111, 112, 113); and - a boom (33) which is radially offset from the first axis of rotation (S), which is connected to the base (31) and on which the receiving device (35) is rotatably mounted about a second axis of rotation (T), - wherein the second axis of rotation (T) is aligned transversely to the first axis of rotation (S), - a drive device (5) associated with the winding tool (3), which is designed to provide a rotating drive movement; and further comprising - a coupling device (7) for selectively transmitting the rotary drive movement from the drive device (5) to the winding tool (3) for rotating the receiving device (35) about the first axis of rotation (S) or the second axis of rotation (T), wherein the coupling device (7) determines whether the support unit (101) is rotated about the first axis of rotation (S) or about the second axis of rotation (T). [2] Winding device (1) according to claim 1, characterized byin that the coupling device (7) is designed to assume, in a first state, a first position for transmitting the rotating drive movement from the drive device (5) to the winding tool (3) for rotating the receiving device about the first axis of rotation (S) and, in a second state, a second position for transmitting the rotating drive movement from the drive device (5) to the winding tool (3) for rotating the receiving device about the second axis of rotation (T). [3] Winding device (1) according to claim 2, characterized by in that the coupling device (7) comprises a movable displacement component (73), wherein the displacement component (73) connects the base (31) to the drive device (5) in a rotationally fixed manner in the first position, and in the second position the displacement component (73) holds the base (31) stationary on a stopper (71). [4] Winding device (1) according to claim 2 or 3, characterized bythat the coupling device (7) comprises a transmission means (75, 77) for transmitting the rotary drive movement from the drive device (5) to the receiving device (35) in the second position. [5] Winding device (1) according to claim 4, characterized by that the transmission means (75, 77) - are housed in the base (31) and the boom (33), - a displacement means (77) for displacing the rotary drive movement away from the first axis of rotation (S), and / or - have a deflection means (75) for deflecting the rotating drive movement by a deflection angle. [6] Winding device (1) according to one of claims 2 to 5, characterized by that the winding device (1) further comprises an actuator (8) which is designed to actuate the coupling device (7). [7] Winding device (1) according to one of the preceding claims, characterized bythat the receiving device (35) is rotatable about the first axis of rotation (S) together with the support unit (101) with a predetermined winding carrier (111, 112, 113) aligned correspondingly to the first axis of rotation. [8] Winding device (1) according to one of the preceding claims, characterized by that the support unit (101) on the receiving device (35) is rotatable about the second axis of rotation (T) in order to align any one of the winding supports (111, 112, 113) corresponding to the first axis of rotation (S). [9] Winding device (1) according to one of the preceding claims, characterized by that the support unit (101) is selected from the following group: externally slotted core of a stator, externally slotted core of a rotor, support unit with pole teeth of a pole chain and support unit with a star arrangement of winding supports (111, 112, 113). [10] Method for producing an arrangement for an electrical machine with a plurality of winding supports (111, 112, 113) and a winding made of wire material arranged thereon, wherein a respective partial winding (121, 122, 123) is assigned to the plurality of winding supports (111, 112, 113), with - Providing a winding device (1) with a winding tool (3) which is designed to receive a support unit (101), and a drive device (5) associated with the winding tool (3) which is designed to provide a rotating drive movement; - arranging a support unit (101) with a plurality of winding carriers (111, 112, 113) on the winding tool (3); - arranging a first winding carrier (111) in a winding position corresponding to a first axis of rotation (S); - rotating the support unit (101) held on the winding tool (3), driven by the rotating drive movement, about the first axis of rotation (S) to produce a first partial winding (121) on the first winding carrier (111), - rotating the support unit (101) held on the winding tool (3), driven by the rotating drive movement, about a second axis of rotation (T) in order to arrange a second winding carrier (112) in a winding position corresponding to the first axis of rotation (S) instead of the first support unit (101), - rotating the support unit (101) held on the winding tool (3), driven by the rotating drive movement, about the first axis of rotation (S) to produce a second partial winding (122) on the second winding carrier (112), and - Detaching the support unit (101) from the winding tool (3). [11] Method according to claim 10, characterized by, - rotating the support unit (101) held on the winding tool (3), driven by the rotating drive movement, about a second axis of rotation (T) in order to arrange a third winding carrier (113) in a winding position corresponding to the first axis of rotation (S) instead of the second winding carrier (112), - Rotating the support unit (101) held on the winding tool (3), driven by the rotating drive movement, about the first axis of rotation (S) to produce a third partial winding (123) on the third winding carrier (113), before releasing the support unit (101) from the winding tool (3). [12] Method according to claim 10 or 11, characterized bythat a first rotationally fixed connection is formed between the winding tool and the drive device for rotating the support unit (101) about the first rotational axis (S), and that a second rotationally fixed connection is formed between the winding tool and the drive device for rotating the support unit (101) about the second rotational axis (T). [13] Method according to claim 12, characterized by that a coupling device is used to form the first or second rotationally fixed connection. [14] Method according to claim 13, characterized by that a movable displacement component (73) is actuated to form and release the first rotationally fixed connection. [15] Method according to claim 14, characterized bythat the coupling device is designed to shift the rotating drive movement for rotating the support unit about the second axis of rotation (T) away from the first axis of rotation (S) and / or to deflect it transversely, in particular perpendicularly, to the first axis of rotation (S). [16] Method according to at least one of claims 10 to 15, characterized by that a support unit from the following group is arranged on the winding tool as the support unit (101): externally slotted core of a stator, externally slotted core of a rotor, support unit with pole teeth of a pole chain and support unit (101) with a star arrangement of winding carriers (111, 112, 113).

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