Winding device

Abstract

The utility model discloses a winding device which comprises a pre-tightening mechanism and a winding mechanism, the pre-tightening mechanism is used for providing pre-tightening force for a wire of a winding, the pre-tightening mechanism comprises a fixing seat and a clamping seat, the clamping seat is located on one side of the fixing seat, a wire passing space is formed between the fixing seat and the clamping seat, and the wire can penetrate through the wire passing space; the winding mechanism is located on one side of the pre-tightening mechanism and comprises a positioning seat and a rotating seat, the positioning seat is located at one end, in the direction of the rotating axis of the rotating seat, of the rotating seat, a winding space is formed between the positioning seat and the rotating seat, and the winding space is used for containing the iron core assembly and enabling the iron core assembly to be positioned between the positioning seat and the rotating seat; the rotating seat is used for driving the iron core assembly to rotate. The winding device is simple in structure and easy to operate.

Description

Technical Field

[0001] This utility model relates to the technical field of motor production equipment, and in particular to a winding device. Background Technology

[0002] Servo motors are widely used due to their high control precision and fast response. However, with equipment upgrades, the performance requirements for servo motors are also increasing. During stator production, samples are typically made to test the motor's performance. Winding the windings is a crucial step in stator production; the windings involve winding the conductors onto the stator's core assembly, which generally consists of core units and an insulating frame. Existing winding devices are bulky, difficult to adjust, and challenging to operate when winding samples, hindering flexible adjustments during production. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a winding device that is simple in structure and easy to operate.

[0004] A winding device according to a first aspect of the present invention includes a pre-tightening mechanism for providing pre-tightening force to the conductor of the winding. The pre-tightening mechanism includes a fixed seat and a clamping seat. The clamping seat is located on one side of the fixed seat, and a wire-passing space is provided between the fixed seat and the clamping seat for the conductor to pass through. The fixed seat and the clamping seat are used to provide pre-tightening force to the conductor. A winding mechanism is located on one side of the pre-tightening mechanism. The winding mechanism includes a positioning seat and a rotating seat. The positioning seat is located at one end of the rotating seat along the rotation axis of the rotating seat. A winding space is provided between the positioning seat and the rotating seat for accommodating a core assembly and positioning the core assembly between the positioning seat and the rotating seat. The rotating seat is used to drive the core assembly to rotate.

[0005] The winding device according to the first aspect of this utility model has at least the following advantages: the core assembly is positioned in the winding space between the positioning seat and the rotating seat; the winding wire passes through the wire passage space of the pre-tightening mechanism and connects to the core assembly; simultaneously, the fixed seat and clamping seat of the pre-tightening mechanism provide pre-tightening force to the wire, straightening the wire; and the rotating seat drives the core assembly to rotate, thus winding the wire onto the core assembly and forming a winding. The winding device has a simple overall structure, is easy to operate, allows operators to flexibly adjust the winding wiring, facilitates debugging, and is suitable for small-batch production or sample making.

[0006] According to some embodiments of the present invention, the rotating seat is provided with a transmission part at one end facing the positioning seat, and the transmission part is used to connect with the iron core assembly to drive the iron core assembly to rotate.

[0007] According to some embodiments of the present invention, the transmission part is configured as a protrusion, the protrusion is arranged radially along the rotating seat, and the protrusion is used to insert into the recess of the iron core assembly.

[0008] According to some embodiments of the present invention, the rotating seat is further provided with a positioning recess at one end facing the positioning seat, and the protrusion is provided on the wall surface of the positioning recess. The positioning recess is used to accommodate part of the structure of the iron core assembly and to position the iron core assembly.

[0009] According to some embodiments of the present invention, the positioning seat is provided with at least two limiting portions at one end facing the rotating seat, the two limiting portions are arranged at intervals along the length direction of the protrusion, and the two limiting portions are used to abut against two wall surfaces of the core assembly that are opposite to each other along the length direction.

[0010] According to some embodiments of the present invention, the positioning seat is provided with a positioning part at one end facing the rotating seat, the positioning part protrudes towards the rotating seat, the positioning part is provided with a positioning groove on one side facing the rotating seat and the limiting part is formed at both ends of the positioning groove along the length direction, the positioning groove is used to accommodate part of the structure of the iron core assembly.

[0011] According to some embodiments of the present invention, at least one of the rotating seat and the positioning seat is provided with a fixing part, which is used to fix the end of the wire.

[0012] According to some embodiments of the present invention, the winding device further includes a guiding mechanism located between the pre-tightening mechanism and the winding mechanism, and the guiding mechanism is used to guide the conductor to move from the pre-tightening mechanism to the winding mechanism.

[0013] According to some embodiments of the present invention, the guiding mechanism includes a guide wheel, the rotation axis of the guide wheel is parallel to the rotation axis of the rotating seat, the guide wheel is provided with a guide groove, the guide groove is arranged around the rotation axis of the guide wheel, and the guide groove is used to accommodate the wire.

[0014] According to some embodiments of the present invention, the pre-tightening mechanism further includes an adjusting member connected between the fixed seat and the clamping seat, and the adjusting member is used to adjust the distance between the fixed seat and the clamping seat.

[0015] According to some embodiments of the present invention, the adjusting component includes an adjusting screw and a nut, the adjusting screw being sequentially inserted into the fixed base and the clamping base, and the adjusting screw being threadedly connected to the nut.

[0016] According to some embodiments of the present invention, the pre-tightening mechanism further includes a protective layer, which is disposed on at least one of the two opposing wall surfaces of the fixed seat and the clamping seat.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 This is a schematic diagram of the winding device in an embodiment of this utility model;

[0020] Figure 2 This is an exploded schematic diagram of the winding mechanism and the iron core assembly in an embodiment of this utility model;

[0021] Figure 3 This is a cross-sectional view of the winding mechanism and the iron core assembly in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the rotating seat in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the pre-tightening mechanism in an embodiment of this utility model;

[0024] Figure 6 This is a schematic diagram of the guide wheel in an embodiment of this utility model;

[0025] Figure 7 This is a schematic diagram of the core assembly in an embodiment of this utility model.

[0026] Figure label:

[0027] Pre-tightening mechanism 100; fixed base 110; clamping base 120; wire guide space 130; adjusting screw 140; nut 150; protective layer 160;

[0028] Winding mechanism 200; positioning seat 210; positioning part 211; positioning groove 212; limiting part 213; rotating seat 220; transmission part 221; positioning recess 222; winding space 230;

[0029] Guide wheel 300; guide groove 310;

[0030] Iron core assembly 400; Iron core unit 410; Recess 411; Insulation frame 420;

[0031] Wire 500. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0035] In the description of this utility model, unless otherwise explicitly defined, terms such as setting, installing, connecting, assembling, and cooperating should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0036] Reference Figures 1 to 6 As shown, the first aspect of this utility model provides a winding device for producing stators, i.e., for winding stators.

[0037] Reference Figure 7As shown, it can be understood that a stator generally includes multiple core assemblies 400 and multiple windings. The multiple core assemblies 400 are arranged sequentially along the circumference of the stator and assembled into a ring. The multiple windings are respectively wound around the multiple core assemblies 400. Each core assembly 400 includes a core unit 410 and two insulating frames 420. The two insulating frames 420 are respectively installed at both ends of the core unit 410 along the axial direction of the stator. The windings are wound around the two insulating frames 420 and the core unit 410. The windings are made of conductors 500, which are generally enameled wires. Their cross-section can be rectangular, circular, triangular, or other shapes; that is, the conductors 500 can be flat wires or round wires, etc. The axial direction of the stator is the direction of the stator's central axis.

[0038] In a stator, the end closest to the center of the stator along its radial direction is defined as the inner end, and the end furthest from the center is defined as the outer end. The radial direction of the stator is the direction perpendicular to the central axis of the stator from the center of the stator outwards and in the opposite direction.

[0039] Reference Figure 1 As shown, it can be understood that the winding device includes a preload mechanism 100 and a winding structure.

[0040] Reference Figure 1 and Figure 5 As shown, the pre-tightening mechanism 100 includes a fixed base 110 and a clamping base 120. Both the fixed base 110 and the clamping base 120 have a cuboid structure and are arranged opposite to each other, i.e., the clamping base 120 is located on one side of the fixed base 110. In this embodiment, the fixed base 110 and the clamping base 120 are arranged vertically, and the clamping base 120 is located above the fixed base 110. Of course, the fixed base 110 and the clamping base 120 can also be arranged horizontally or in other directions, as long as the fixed base 110 and the clamping base 120 are arranged opposite to each other.

[0041] Continue to refer to Figure 4 The fixing seat 110 and the clamping seat 120 are arranged at intervals, and a wire-passing space 130 is defined between the fixing seat 110 and the clamping seat 120. The wire-passing space 130 is open on all sides, allowing the winding wire 500 to pass through. Furthermore, the fixing seat 110 and the clamping seat 120 can provide a certain preload to the wire 500, while this preload does not affect the movement of the wire 500 relative to the preload mechanism 100. That is, when a tension force is applied to the wire 500 passing through the wire-passing space 130, the wire 500 can be pulled and brought into a taut state.

[0042] It is easy to understand that when the fixing seat 110 and the clamping seat 120 clamp the wire 500, they apply a clamping force to the wire 500. When the wire 500 is pulled, a frictional force is generated between the wire 500 and the fixing seat 110, and between the wire 500 and the clamping seat 120, which is opposite to the direction of the pulling force. This frictional force is the preload, which is less than the pulling force.

[0043] Reference Figure 1 and Figure 2 As shown, it can be understood that the winding mechanism 200 is located on one side of the pre-tensioning mechanism 100, specifically, the winding mechanism 200 is located on one side of any opening of the wire-passing space 130. The winding structure includes a positioning seat 210 and a rotating seat 220. Specifically, both the positioning seat 210 and the rotating seat 220 are cylindrical structures, and the positioning seat 210 and the fixed seat 110 are rotatably mounted on the base of the winding device (not shown in the figure). The rotating seat 220 is capable of rotating about its own central axis, that is, the rotation axis of the rotating seat 220 coincides with its own central axis. The positioning seat 210 is located at one end of the rotating seat 220 along the rotation axis of the rotating seat 220, and the central axis of the positioning seat 210 coincides with the central axis of the rotating seat 220. In this embodiment, the positioning seat 210 and the rotating seat 220 are arranged in the left-right direction.

[0044] Continue to refer to Figure 1 The positioning seat 210 and the rotating seat 220 are arranged at intervals along the rotation axis of the rotating seat 220, and a winding space 230 is defined between the positioning seat 210 and the rotating seat 220. The winding space 230 is suitable for mounting the core assembly 400. When the core assembly 400 is mounted in the winding space 230, the inner end of the core assembly 400 abuts against one of the positioning seat 210 and the rotating seat 220, and the outer end of the core assembly 400 abuts against the other of the positioning seat 210 and the rotating seat 220. In this embodiment, the inner end of the core assembly 400 abuts against the positioning seat 210, and the outer end of the core assembly 400 abuts against the rotating seat 220. Furthermore, the core assembly 400 is positioned between the positioning seat 210 and the rotating seat 220, and the positioning seat 210 and the rotating seat 220 clamp the core assembly 400, and the core assembly 400 is relatively fixed to the positioning seat 210 and the rotating seat 220.

[0045] Understandably, the base of the winding device is typically equipped with a drive mechanism, which can be a motor, a rotary cylinder, or a combination of a motor and a reducer. The output end of the drive mechanism is connected to the rotating seat 220 and is used to drive the rotating seat 220 to rotate. Therefore, when the core assembly 400 is fixedly installed in the winding space 230 between the positioning seat 210 and the rotating seat 220, the drive mechanism drives the rotating seat 220 to rotate, and the rotating seat 220 drives the core assembly 400 and the positioning seat 210 to rotate synchronously.

[0046] Therefore, when winding the winding on the core assembly 400, the core assembly 400 is installed in the winding space 230 between the positioning seat 210 and the rotating seat 220, the wire 500 is passed through the wire passage space 130 between the fixed seat 110 and the clamping seat 120, and the fixed seat 110 and the clamping seat 120 provide a preload force to the wire 500. The outlet or inlet end of the wire 500 is fixed to any one of the positioning seat 210, the rotating seat 220 and the core assembly 400, and the wire 500 is... The first part of the conductor 500 is wound in the teeth of the core assembly 400, that is, the first part of the conductor 500 is connected to the core assembly 400. The drive mechanism drives the rotating seat 220, the core assembly 400 and the positioning seat 210 to rotate synchronously. Under the action of the tension of the core assembly 400 and the pre-tensioning force of the pre-tensioning mechanism 100, the conductor 500 is in a taut state. As the core assembly 400 rotates, the conductor 500 can be wound in the teeth of the core assembly 400, so as to realize the winding on the core assembly 400.

[0047] The winding includes multiple layers of conductors 500 arranged sequentially along the rotation axis of the rotating part. During the winding process, the conductors 500 are laid sequentially from the inner end to the outer end (or from the outer end to the inner end) of the core assembly 400. Therefore, it is usually necessary for the operator to adjust the position of the conductors 500 on the core assembly 400 to ensure accurate winding.

[0048] In this embodiment, the overall structure of the winding device is relatively simple. When necessary, the operator can stop the drive mechanism, stop the rotation of the core unit 410, and manually intervene in the position of the wire 500 to flexibly adjust its position, i.e., adjust the winding wiring. Alternatively, during the operation of the drive mechanism, a force along the rotation axis of the rotating seat 220 can be applied to a section of wire 500 located between the pre-tightening mechanism 100 and the winding mechanism 200 using a tool, causing the section of wire 500 to shift, thereby adjusting the position of the wire 500 on the core assembly 400 and adjusting the winding wiring. In other words, when winding the winding using the winding device, manual intervention is possible, and the operation is simple, flexible, and convenient for debugging, making it suitable for small-batch production, such as sample making.

[0049] Reference Figure 1 and Figure 6 As shown, it can be understood that the winding device also includes a guiding mechanism, which is located between the pre-tightening mechanism 100 and the winding mechanism 200. The guiding mechanism is used to guide the wire 500 to move from the pre-tightening mechanism 100 to the winding mechanism 200.

[0050] Specifically, the guiding mechanism includes a guide wheel 300, which is rotatably mounted on the base of the winding device, and the rotation axis of the guide wheel 300 is parallel to the rotation axis of the rotating seat 220. A guide groove 310 is provided on the outer peripheral wall of the guide wheel 300, and the guide groove 310 is arranged around the rotation axis of the guide wheel 300, completing one full rotation. A section of the conductor 500 located between the pre-tensioning mechanism 100 and the winding mechanism 200 is accommodated in the winding groove. Therefore, the structures on both sides of the winding groove along the rotation axis in the guide wheel 300 can limit the conductor 500 in the direction of the rotation axis, ensuring that the conductor 500 exiting from the wire passage space 130 is accurately guided to the core assembly 400, thereby achieving precise wiring and ensuring the consistency of the number of conductor layers 500 and the number of turns per layer in the winding, improving the winding quality. Simultaneously, by limiting the conductor 500 through the winding groove, the conductor 500 can be effectively prevented from flipping, thus accurately determining the number of conductor layers 500 and the number of turns per layer in the winding.

[0051] It is easy to understand that, since the guide wheel 300 is rotatable, it rotates simultaneously as the wire 500 moves from the pre-tensioning mechanism 100 to the winding mechanism 200. This reduces the resistance during the movement of the wire 500 and improves the smoothness of the winding process. At the same time, it effectively reduces the risk of wear on the wire 500 caused by relative slippage between the wire 500 and the guide wheel 300.

[0052] In other embodiments, the guide mechanism may also be an upward-opening fork-shaped structure, a ring structure, etc., with a section of wire 500 located between the pre-tightening mechanism 100 and the winding mechanism 200 passing through the guide mechanism to ensure that the wire 500 exiting the wire passage space 130 is precisely guided to the core assembly 400. The guide structure may also be other forms of structure, as long as it can limit the wire 500 in the direction of the rotation axis and guide the wire 500 moving from the pre-tightening mechanism 100 to the winding mechanism 200.

[0053] Reference Figure 4 As shown, it can be understood that, in order to realize the transmission between the rotating seat 220 and the core assembly 400, a transmission part 221 is provided at one end of the rotating seat 220 facing the positioning seat 210. Specifically, the transmission part 221 is configured as a protrusion protruding towards the positioning seat 210. The protrusion is arranged radially along the rotating seat 220, that is, the length direction of the protrusion is perpendicular to the radial direction of the rotating seat 220, and both ends of the protrusion extend to the outer peripheral wall of the rotating seat 220 along the length direction. Generally, the protrusion passes through the center of the rotating seat 220. In a cross-section perpendicular to the length direction of the protrusion, the cross-sectional profile of the protrusion can be rectangular, trapezoidal, etc.

[0054] Reference Figure 7As shown, typically, the outer end wall of the core unit 410 is provided with a recess 411, which is recessed towards the inner end of the core unit 410 and arranged along the axial direction of the stator. The two ends of the recess 411 extend along the axial direction of the stator to two opposite end faces of the core unit 410 along the axial direction of the stator. In a cross-section perpendicular to the length direction of the protrusion, the cross-sectional profile of the recess 411 is the same as that of the protrusion. In this embodiment, in a cross-section perpendicular to the length direction of the protrusion, both the cross-sectional profile of the recess 411 and the cross-sectional profile of the protrusion are rectangular.

[0055] Reference Figure 1 and Figure 2 As shown, the protruding strip is accommodated in the recess 411, that is, the protruding strip is inserted into the recess 411, realizing the connection between the protruding strip and the iron core unit 410. Thus, the protruding strip and the iron core unit 410 form a constraint in a direction perpendicular to the protruding strip and perpendicular to the central axis of the rotation shaft. When the rotating seat 220 rotates, the rotating seat 220 drives the iron core assembly 400 to rotate through the protruding strip to realize the winding. The transmission structure between the rotating seat 220 and the iron core assembly 400 is simple, which facilitates the positioning and installation of the iron core unit 410 between the rotating seat 220 and the positioning seat 210. Since the cross-sectional profiles of the recess 411 and the protruding strip are both rectangular in the cross-section perpendicular to the length direction of the protruding strip, the area for transmitting torque between the protruding strip and the iron core unit 410 is large, resulting in high reliability.

[0056] Understandably, since the outer peripheral wall of the stator is usually cylindrical, the outer end wall of the core unit 410 is usually curved. The core unit 410 is installed between the rotating seat 220 and the positioning seat 210. When the outer end wall of the core unit 410 contacts the plane, it is prone to shaking, resulting in unstable installation and affecting the winding accuracy of the winding.

[0057] Therefore, referring to Figure 3 and Figure 4 As shown, it can be understood that a positioning recess 222 is provided on the end wall of the rotating seat 220 facing the positioning seat 210, and the positioning recess 222 is recessed in the direction away from the positioning seat 210. The outer end portion of the core unit 410 is accommodated in the positioning recess 222, and the outer end wall of the core unit 410 abuts against the wall of the positioning recess 222. In a cross section perpendicular to the axial direction of the stator, the cross-sectional profile of the wall of the positioning recess 222 is the same as the cross-sectional profile of the outer end wall of the core unit 410, so that the outer end wall of the core unit 410 and the wall of the positioning recess 222 are in close contact. Therefore, when the core assembly 400 is positioned and installed on the rotating seat 220, the rotating seat 220 can adapt to the outer end wall of the core unit 410, thereby preventing the core assembly 400 from shaking, improving the installation stability, and positioning the core assembly 400 for convenient installation.

[0058] Continue to refer to Figure 4 The protruding strip is disposed on the wall surface of the positioning recess 222. Therefore, when the core assembly 400 is installed between the rotating seat 220 and the positioning seat 210, the protruding strip is inserted into the recess 411 of the core unit 410 until the outer end wall surface of the core unit 410 is completely in contact with the wall surface of the positioning recess 222, thereby positioning the core assembly 400 in the rotating seat 220. It is easy to understand that the protruding strip can be inserted into the recess 411 of the core unit 410 along its own length direction, or the protruding strip can be inserted into the recess 411 of the core unit 410 along the direction of the rotation axis of the rotating seat 220.

[0059] It is understood that in some other embodiments, the transmission part 221 may also be a groove structure, with the outer end of the core unit 410 accommodated in the groove, and the two opposite end faces of the outer end of the core unit 410 extending into the groove and abutting against the groove wall, thus constraining the rotating seat 220 and the core unit 410 in the axial direction of the stator. When the rotating seat 220 rotates, it can also drive the core assembly 400 to rotate, thereby realizing the winding.

[0060] Reference Figure 1 and Figure 2 As shown, it can be understood that the positioning seat 210 has at least two limiting portions 213 at one end facing the rotating seat 220. Specifically, a positioning portion 211 is provided at one end of the positioning seat 210 facing the rotating seat 220, and the positioning portion 211 protrudes towards the rotating seat 220. The positioning portion 211 can be a block-shaped structure or a strip-shaped structure, and the positioning portion 211 is arranged along the length direction of the protrusion. A positioning groove 212 is provided on one side of the positioning portion 211 facing the rotating seat 220. The positioning groove 212 is open on both sides in a direction perpendicular to the protrusion and perpendicular to the central axis of the rotating seat 220, and the two ends of the positioning groove 212 along the length direction of the protrusion are closed. The structures located at both ends of the positioning groove 212 along the length direction of the protrusion in the positioning portion 211 are the two limiting portions 213. Obviously, the two limiting portions 213 are arranged at intervals along the length direction of the protrusion.

[0061] It is understood that in some other embodiments, the limiting part 213 may be a protruding structure protruding from the wall surface of the positioning seat 210 on the side facing the rotating seat 220. That is, the positioning seat 210 does not have a positioning part 211 and a positioning groove 212, but has two protruding structures on the wall surface of the positioning seat 210 on the side facing the rotating seat 220. The two protruding structures are arranged at intervals along the length direction of the protrusion, and the protruding structures are the limiting parts 213.

[0062] Since the core assembly 400 can move relative to the rotating base 220 along the length of the ridge after being installed on the rotating base 220, it is also necessary to limit the core assembly 400 along the length of the ridge. Therefore, the inner end of the core assembly 400 is installed on the positioning base 210. Specifically, the inner end of the core assembly 400 is accommodated in the positioning groove 212, that is, the inner ends of the two insulating frames 420 and the inner end of the core unit 410 are accommodated in the positioning groove 212, and the two limiting parts 213 respectively abut against the two opposite end faces of the two insulating frames 420 along the length of the ridge. Therefore, the two limiting parts 213 can limit the core assembly 400 along the length of the ridge. This achieves a stable installation of the core assembly 400 in the winding space 230 between the rotating base 220 and the positioning base 210, thereby enabling the core assembly 400 to rotate via the rotating base 220 to wind the winding.

[0063] It is understood that in other embodiments, the number of limiting parts 213 may be four, six or more, and the multiple limiting parts 213 are divided into two groups and respectively abut against the two end faces of the two insulating frames 420 that are opposite to each other along the length direction of the protrusion.

[0064] It is easy to understand that the rotating seat 220 and the positioning seat 210 can move towards or away from each other in the direction of the rotation axis of the rotating seat 220. For example, in the direction of the rotation axis of the rotating seat 220, the rotating seat 220 is fixed relative to the base of the winding device, while the positioning seat 210 can move relative to the base of the winding device so as to install the core assembly 400 into the winding space 230 between the rotating seat 220 and the positioning seat 210. Specifically, when installing the core assembly 400, the rotating seat 220 and the positioning seat 210 are moved in opposite directions along the rotation axis of the rotating seat 220 to increase the size of the winding space 230. The core assembly 400 is placed in the winding space 230, and the recess 411 at the outer end of the core unit 410 is aligned with the protrusion. The protrusion is inserted into the recess 411 until the outer wall of the core unit 410 is completely attached to the wall of the positioning recess 222. Then, the rotating seat 220 and the positioning seat 210 are moved towards each other along the rotation axis of the rotating seat 220 so that the inner end of the core assembly 400 is accommodated in the positioning groove 212. At the same time, the two limiting parts 213 abut against the two end faces of the two insulating frames 420 that are opposite to each other along the length of the protrusion. The positioning seat 210 and the rotating seat 220 clamp the core assembly 400.

[0065] Understandably, windings typically have an inlet and an outlet end, both of which extend to the outside of the insulating frame 420 for connection with other windings. For this purpose, at least one of the rotating base 220 and the positioning base 210 is provided with a fixing part. Specifically, in this embodiment, the outer peripheral wall of the rotating base 220 is provided with a fixing part located at the end of the rotating base 220 near the positioning base 210. The fixing part can be a screw threaded onto the rotating base 220, or a cylindrical structure, hook-shaped structure, etc., integral with the rotating base 220. The fixing part can fix the end of the conductor 500, which can be the inlet or outlet end of the winding. For example, when the fixing part is a screw, the end of the conductor 500 can be locked and fixed to the outer peripheral wall of the rotating base 220 by the screw. Alternatively, when the fixing part is a cylindrical structure or a hook-shaped structure, the end of the conductor 500 can be wound around the cylindrical structure or the hook-shaped structure. Therefore, the end of the conductor 500 can be fixed by the fixing part, and the conductor 500 can be pulled when the rotating seat 220 rotates, so that the conductor 500 can be wound on the iron core assembly 400, which is convenient for winding.

[0066] In other embodiments, the fixing part can be provided on the outer peripheral wall of the positioning seat 210, and the fixing part is located at the end of the positioning seat 210 near the rotating seat 220, so that the end of the wire 500 can be fixed to the positioning seat 210. When the rotating seat 220 rotates, the positioning seat 210 rotates synchronously, which can also pull the wire 500 to wind the winding. Alternatively, both the rotating seat 220 and the positioning seat 210 are provided with fixing parts, so the operator can selectively fix the end of the wire 500 to the rotating seat 220 or the positioning seat 210 according to the position of the inlet or outlet end of the winding, which has good versatility.

[0067] Understandably, the wire diameter of the stator winding conductor 500 varies depending on the motor's performance and power. To improve the versatility of the winding device, the size of the wire passage space 130 of the preload mechanism 100 must be large enough to allow conductors 500 of different diameters to pass through.

[0068] Therefore, referring to Figure 5As shown, the pre-tightening mechanism 100 also includes an adjusting member, which is connected between the fixed seat 110 and the clamping seat 120 and is used to adjust the distance between the fixed seat 110 and the clamping seat 120. Specifically, the adjusting member includes an adjusting screw 140 and a nut 150, wherein the adjusting screw 140 passes through the clamping seat 120 and the fixed seat 110 in sequence, and the nut 150 is located on the side of the fixed seat 110 away from the clamping seat 120, and the threaded section of the adjusting screw 140 is threadedly connected to the nut 150. In this embodiment, there are four sets of adjusting members, which are located at the four corners of the fixed seat 110. Therefore, the distance between the fixed seat 110 and the clamping seat 120 can be adjusted by rotating the adjusting nut 150, thereby adjusting the size of the wire passage space 130.

[0069] In other embodiments, the adjusting component may consist of only four adjusting screws 140, located at the four corners of the fixed base 110. One end of each adjusting screw 140 is rotatably connected to the fixed base 110, and the other end is threadedly connected to the clamping base 120. Therefore, rotating the adjusting screws 140 causes the clamping base 120 to move away from or towards the fixed base 110, thereby adjusting the distance between the fixed base 110 and the clamping base 120, and consequently adjusting the size of the wire-passing space 130.

[0070] In other embodiments, one end of the adjusting screw 140 is rotatably connected to the clamping seat 120, and the other end is threadedly connected to the fixed seat 110. Similarly, rotating the adjusting screw 140 can drive the clamping seat 120 to move away from or towards the fixed seat 110, thereby adjusting the distance between the fixed seat 110 and the clamping seat 120, and thus adjusting the size of the wire passage space 130.

[0071] Of course, the number of adjustment components can also be five, six or more.

[0072] Therefore, during the winding process, the distance between the fixing seat 110 and the clamping seat 120 can be adjusted according to the wire diameter of the conductor 500, that is, the size of the wire passage space 130 can be adjusted so that the size of the wire passage space 130 can match the wire diameter of the conductor 500, which has good versatility.

[0073] Meanwhile, since the distance between the fixing seat 110 and the clamping seat 120 is adjustable, when passing the wire 500 through the wire passage space 130, the distance between the fixing seat 110 and the clamping seat 120 can be adjusted to a larger distance first to increase the size of the wire passage space 130, making it easier for the wire 500 to pass through. After the wire 500 has passed through the wire passage space 130, the fixing seat 110 and the clamping seat 120 can be adjusted to a suitable distance to provide preload force to the wire 500.

[0074] Furthermore, it is understood that since the distance between the fixed seat 110 and the clamping seat 120 can be adjusted, during the winding process, the distance between the fixed seat 110 and the clamping seat 120 can be finely adjusted by adjusting the screw 140 to adjust the pressure of the fixed seat 110 and the clamping seat 120 on the wire 500, thereby adjusting the preload and preventing the wire 500 from being too tight and causing damage, or preventing the wire 500 from being too loose and affecting the winding.

[0075] In other embodiments, it is understood that the adjusting member may also be a cylinder, a telescopic rod, or other structure. The two ends of the cylinder or telescopic rod are respectively connected to the fixed seat 110 and the clamping seat 120, thereby enabling the fixed seat 110 and the clamping seat 120 to move towards or away from each other to adjust the size of the wire passage space 130.

[0076] During the winding process, the conductor 500 moves relative to the fixed seat 110 and the clamping seat 120, which can easily cause the conductor 500 to be worn, resulting in short circuits and damage to the winding.

[0077] Therefore, referring to Figure 5 It is understood that the pre-tightening mechanism 100 also includes a protective layer 160, which is disposed on at least one of the two opposing wall surfaces of the fixing seat 110 and the clamping seat 120. Specifically, in this embodiment, the protective layer 160 is installed on both the wall surface of the fixing seat 110 facing the clamping seat 120 and the wall surface of the clamping seat 120 facing the fixing seat 110. The protective layer 160 can be hard wool felt or plush fabric, for example, two layers of hard wool felt are respectively bonded to the fixing seat 110 and the clamping seat 120. Hard wool felt has a dense fiber structure and high density, and has high elasticity and wear resistance. Its surface is smooth and its texture is tough, which can withstand various frictions and wear. Therefore, when the fixing seat 110 and the clamping seat 120 clamp the wire 500, the two layers of hard wool felt are in contact with the wire 500, effectively reducing the risk of the wire 500 being worn and improving reliability.

[0078] In other embodiments, a protective layer 160 may be installed only on the wall surface of the fixing base 110 facing the clamping base 120 or on the wall surface of the clamping base 120 facing the fixing base 110. This can also reduce the risk of wear on the wire 500 to some extent and improve reliability.

[0079] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A winding device, characterized in that, include: A pre-tightening mechanism is used to provide pre-tightening force to the conductor of the winding. The pre-tightening mechanism includes a fixed base and a clamping base. The clamping base is located on one side of the fixed base. There is a wire passage space between the fixed base and the clamping base for the conductor to pass through. A winding mechanism is located on one side of the pre-tightening mechanism. The winding mechanism includes a positioning seat and a rotating seat. The positioning seat is located at one end of the rotating seat along the rotation axis of the rotating seat. There is a winding space between the positioning seat and the rotating seat. The winding space is used to accommodate the iron core assembly and position the iron core assembly between the positioning seat and the rotating seat. The rotating seat is used to drive the iron core assembly to rotate.

2. The winding device according to claim 1, characterized in that: The rotating seat has a transmission part at one end facing the positioning seat. The transmission part is used to connect with the iron core assembly to drive the iron core assembly to rotate.

3. The winding device according to claim 2, characterized in that: The transmission part is configured as a protrusion arranged radially along the rotating seat, and the protrusion is used to insert into the recess of the core assembly.

4. The winding device according to claim 3, characterized in that: The rotating seat is provided with a positioning recess at one end facing the positioning seat, and the protrusion is provided on the wall of the positioning recess. The positioning recess is used to accommodate part of the structure of the iron core assembly and to position the iron core assembly.

5. The winding device according to claim 3, characterized in that: The positioning seat has at least two limiting parts at one end facing the rotating seat. The two limiting parts are arranged at intervals along the length direction of the protrusion, and the two limiting parts are used to abut against two wall surfaces of the core assembly that are opposite to each other along the length direction.

6. The winding device according to claim 5, characterized in that: The positioning seat has a positioning part at one end facing the rotating seat, the positioning part protrudes towards the rotating seat, the positioning part has a positioning groove on one side facing the rotating seat and the limiting part is formed at both ends of the positioning groove along the length direction, the positioning groove is used to accommodate part of the structure of the iron core assembly.

7. The winding device according to claim 1, characterized in that: At least one of the rotating seat and the positioning seat is provided with a fixing part, which is used to fix the end of the wire.

8. The winding device according to claim 1, characterized in that: The winding device further includes a guiding mechanism located between the pre-tightening mechanism and the winding mechanism, which guides the conductor from the pre-tightening mechanism to the winding mechanism.

9. The winding device according to claim 8, characterized in that: The guiding mechanism includes a guide wheel, the rotation axis of which is parallel to the rotation axis of the rotating seat. The guide wheel is provided with a guide groove, which is arranged around the rotation axis of the guide wheel and is used to accommodate the wire.

10. The winding device according to claim 1, characterized in that: The pre-tightening mechanism further includes an adjusting member connected between the fixed seat and the clamping seat, which is used to adjust the distance between the fixed seat and the clamping seat.

11. The winding device according to claim 10, characterized in that: The adjusting component includes an adjusting screw and a nut. The adjusting screw passes through the fixed base and the clamping base in sequence, and the adjusting screw is threadedly connected to the nut.

12. The winding device according to claim 1, characterized in that: The pre-tightening mechanism further includes a protective layer, which is disposed on at least one of the two opposing walls of the fixed seat and the clamping seat.

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