tensioning device

Abstract

The utility model relates to axial flux motor manufacturing equipment technical field especially relates to tensioner, this tensioner includes guide component, winding roller, brake, outgoing line subassembly and elastic tensioning subassembly, is provided with a plurality of threading path in guide component, each threading path is used to accommodate a wire rod, at least two winding rollers are sequentially arranged along the axis, each winding roller is provided with a plurality of annular winding grooves extending along the axis, the end of each threading path is correspondingly provided with an annular winding groove, each brake is connected with a winding roller, the brake is configured to increase the resistance of winding roller rotation along the axis, each outgoing line subassembly can transmit the wire rod of winding over winding roller in the preset quantity and transmit the wire rod to the winding nozzle, each elastic tensioning subassembly is correspondingly provided with a group of outgoing line subassembly, and the elastic tensioning subassembly can drive the outgoing line subassembly elastic tensioning wire rod.

Description

Technical Field

[0001] This utility model relates to the technical field of axial flux motor manufacturing equipment, and in particular to a tensioning device. Background Technology

[0002] Axial flux motors, due to their high power density and high efficiency, have broad application prospects in fields such as new energy vehicles and industrial robots. To further improve the performance of axial flux motors, the stator windings typically employ a method of winding multiple wires in parallel to increase the slot fill factor and reduce AC losses. The tension applied to these multiple wires during the winding process has a decisive influence on the winding effect of the stator windings.

[0003] During the winding process, the tension of the wire is prone to fluctuations due to changes in winding speed and path turns. Insufficient tension can lead to loose windings, while excessive tension can cause the wire to be stretched thinner, its insulation scratched, or even break. Furthermore, it is difficult to ensure completely consistent tension across multiple wires; some wires may be too loose or too tight, affecting coil forming quality and electrical performance. If a separate tensioner is configured for each conductor, the tension system would become extremely large, complex, and costly for applications with a large number of wires, making it difficult to integrate into compact automated equipment. In addition, the transmission of multiple wires can easily result in crossing, tangling, and other problems, affecting normal winding.

[0004] Therefore, there is an urgent need to invent a tensioning device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a tensioning device to achieve synchronous and stable tensioning of multiple wires, solve the problem of cross-entanglement between multiple wires, improve the protection of the wires, and save installation space.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The tensioning device includes:

[0008] A guide assembly, wherein multiple through-paths are provided within the guide assembly, and each through-path is used to accommodate one wire;

[0009] At least two winding rollers are arranged sequentially along the axial direction. Each winding roller has multiple annular winding grooves extending around the axial direction. The end of each passage path corresponds to one of the annular winding grooves.

[0010] At least two brakes, each of which is connected to one of the winding rollers, the brakes being configured to increase the resistance of the winding rollers to rotation about the axial direction;

[0011] Multiple sets of wire exit assemblies, each set of which is capable of conveying a predetermined number of wires wound around the winding roller and transferring the wires to the winding nozzle; and

[0012] Multiple sets of elastic tensioning components are provided, each set of elastic tensioning components is corresponding to a set of outgoing wire components, and the elastic tensioning components can drive the outgoing wire components to elastically tension the wire.

[0013] As an optional solution, the guiding component includes:

[0014] A first guide frame, wherein a first guide opening is provided inside the first guide frame that extends through a preset direction;

[0015] A second guide frame is connected to one end of the first guide frame near the winding roller along the preset direction; the second guide frame is provided with a second guide opening extending through the preset direction; and

[0016] A guide tube is disposed at one end of the second guide frame near the winding roller along the preset direction. The guide tube has a central through hole. One end of the central through hole is directly opposite the second guide opening along the preset direction, and the other end of the central through hole is directly opposite the annular winding groove along the preset direction. The first guide opening, the second guide opening, and the central through hole together form the through path extending along the preset direction.

[0017] As an optional solution, the first guide frame is provided with a plurality of isolation posts, and a through groove extending along the preset direction is opened on the first guide frame. The plurality of isolation posts are spaced apart along the length direction of the through groove, and the plurality of isolation posts extend into the through groove in a direction perpendicular to the preset direction. The gap between two adjacent isolation posts forms the first guide opening.

[0018] As an optional solution, the second guide frame is provided with a plurality of guide holes spaced apart along the length of the through groove, and each guide hole is directly opposite a first guide opening and a guide tube along the preset direction.

[0019] As an optional solution, a fixing groove is provided on the side wall of the annular winding groove. The fixing groove extends axially around the winding roller and forms a closed annulus. The winding roller also includes an elastic washer. The elastic washer is fixed in the fixing groove. The elastic washer is configured to limit and fix the wire along the radial direction of the winding roller.

[0020] As an optional solution, the cross-section of the elastic washer is circular, and the cross-section of the fixing groove is semi-circular. When the elastic washer is fixed in the fixing groove, half of the elastic washer is fixed in the fixing groove, and the other half of the elastic washer extends outward from the side wall of the annular winding groove. The portion of the elastic washer extending outward from the side wall of the annular winding groove is configured to abut against the wire.

[0021] As an optional solution, fixing grooves are provided on both side walls of the annular winding groove. The two fixing grooves are arranged opposite each other along the axial direction of the winding roller. An elastic washer is fixed in each fixing groove. The two elastic washers together limit and fix the wire along the radial direction of the winding roller.

[0022] As an optional solution, the cable outlet assembly includes an extension rod, a cable outlet wheel, a first pivot member, and a second pivot member;

[0023] The first pivot member and the second pivot member are respectively connected to the two ends of the extension rod along the axial direction. The first pivot member is rotatably connected to the lead wheel. The lead wheel can transmit a preset number of wires at the same time.

[0024] The second pivot is rotatably connected to the frame, and the elastic tensioning assembly is connected to the extension rod, which can drive the extension rod to rotate relative to the frame.

[0025] As an optional solution, the elastic tensioning component includes:

[0026] Elastic expansion joints are capable of elastic expansion and contraction along their own axis;

[0027] A first connector and a second connector are provided. The first connector is connected to the extension rod, and the second connector is connected to the frame. The two axial ends of the elastic telescopic member are pivotally connected to the first connector and the second connector, respectively.

[0028] As an option, the mounting position of the first connector and the extension rod is adjustable along the axial direction of the extension rod.

[0029] The beneficial effects of this utility model are:

[0030] The tensioning device provided by this utility model features at least two winding rollers arranged sequentially along the axial direction. Each winding roller has multiple annular winding grooves extending axially, and each winding roller is associated with a brake. Furthermore, a guide assembly includes multiple through-paths, with the end of each through-path corresponding to an annular winding groove on the winding roller. This allows multiple wires to be wound along the guide paths into different annular winding grooves on the winding rollers, preventing cross-entanglement between the wires. Combined with the wire exit assembly, the wire passing through the winding rollers is transferred to the winding nozzle for winding. The brakes provide rotational resistance to the winding rollers, achieving initial tensioning of the wires. By equipping each set of wire exit assemblies with an elastic tensioning component, each set of elastic tensioning components drives the corresponding wire exit assembly to elastically tension the corresponding wire, improving the tensioning effect and ensuring the subsequent winding effect of the wires. Furthermore, since each winding roller can wind multiple wires, the number of winding rollers, brakes, wire exit assemblies, and elastic tensioning assemblies required can be reduced, which not only saves costs but also reduces the size of the winding device and saves installation space. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the tensioning device provided in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the tensioning device provided in the embodiment of the present invention with the second guide frame hidden.

[0033] Figure 3 This is a cross-sectional schematic diagram of the tensioning device provided in an embodiment of this utility model;

[0034] Figure 4 yes Figure 1 A magnified view of a section at point A in the middle;

[0035] Figure 5 yes Figure 1 A magnified view of a section at point B in the middle;

[0036] Figure 6 yes Figure 2 A magnified view of a section at point C;

[0037] Figure 7 This is a cross-sectional schematic diagram of the winding roller provided in an embodiment of this utility model.

[0038] In the picture:

[0039] 100. Brake;

[0040] 200. Winding roller; 210. Annular winding groove; 211. Fixing groove; 220. Elastic washer;

[0041] 300, Guide assembly; 310, First guide frame; 311, Isolation post; 312, Through slot; 320, Second guide frame; 321, Guide hole; 330, Guide tube;

[0042] 400. Cable exit assembly; 410. Extension rod; 420. Cable exit wheel; 430. First pivot member; 431. Mounting slot; 4311. Mating slot; 440. Second pivot member;

[0043] 500, guide roller;

[0044] 600, Elastic tensioning assembly; 610, Elastic telescopic component; 620, First connecting component; 630, Second connecting component;

[0045] 700, rack. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0047] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0049] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0050] To further improve the performance of axial flux motors, the stator windings typically employ a parallel winding method with multiple wires to increase slot fill factor and reduce AC losses. The tension applied to these multiple wires during winding significantly impacts the winding effect. Due to variations in winding speed and path twists, wire tension fluctuates. Insufficient tension can lead to loose windings, while excessive tension can stretch and thin the wires, scratching the insulation and even causing breakage. Furthermore, maintaining perfectly consistent tension across multiple wires is difficult; some wires may be too loose or too tight, affecting coil forming quality and electrical performance. Configuring a separate tensioner for each conductor would result in a bulky, complex, and costly tension system for applications with a large number of wires, making integration into compact automated equipment challenging. Additionally, the transmission of multiple wires can lead to crossing, tangling, and other problems, hindering proper winding.

[0051] To solve the above problems, such as Figures 1-3 As shown, this embodiment provides a winding device. The winding device includes at least two winding rollers 200, at least two brakes 100, a guide assembly 300, multiple sets of wire exit assemblies 400, and multiple sets of elastic tensioning assemblies 600. The guide assembly 300 has multiple threading paths, each path accommodating one wire. At least two winding rollers 200 are arranged sequentially along the axial direction. Each winding roller 200 has multiple axially extending annular winding grooves 210. The end of each threading path is connected to… A corresponding annular winding groove 210 is provided, and each brake 100 is connected to a winding roller 200. The brake 100 is configured to increase the resistance of the winding roller 200 to rotate around the axial direction. Each set of wire exit components 400 can transmit a preset number of wires wound around the winding roller 200 and transmit the wires to the winding nozzle. Each set of elastic tensioning components 600 is provided corresponding to a set of wire exit components 400. The elastic tensioning components 600 can drive the wire exit components 400 to elastically tension the wires.

[0052] The tensioning device comprises at least two winding rollers 200 arranged sequentially along the axial direction. Each winding roller 200 has multiple annular winding grooves 210 extending axially along the axial direction. Each winding roller 200 is correspondingly arranged with a brake 100. Furthermore, multiple through-paths are provided in an additional guide assembly 300, with the end of each through-path corresponding to an annular winding groove 210 on the winding roller 200. This allows multiple wires to be wound along the guide paths on different annular grooves of the winding roller 200. Within the winding groove 210, cross-entanglement between multiple wires is avoided. Combined with the wire exit assembly 400, the wire passing through the winding roller 200 is transferred to the winding nozzle for winding. The brake 100 provides rotational resistance to the winding roller 200, achieving initial tension of the wire. By equipping each wire exit assembly 400 with an elastic tensioning assembly 600, each elastic tensioning assembly 600 drives the corresponding wire exit assembly 400 to elastically tension the corresponding wire, improving the tensioning effect and ensuring the subsequent winding effect. Furthermore, since each winding roller 200 can wind multiple wires, the required number of winding rollers 200, brakes 100, wire exit assemblies 400, and elastic tensioning assemblies 600 can be adaptively reduced, saving costs and reducing the size of the winding device, thus saving installation space.

[0053] It should be noted that, in this embodiment, the tensioning device includes a set of guide components 300, two winding rollers 200, two brakes 100, 12 sets of wire exit components 400, and 12 sets of elastic tensioning components 600. The guide components 300 can simultaneously isolate and transport 48 wires. The two winding rollers 200 have 24 annular winding grooves 210 spaced axially to achieve the purpose of simultaneously winding 48 wires. Each set of wire exit components 400 can simultaneously transport 4 wires, so that the 12 sets of wire exit components 400 can jointly transport 48 wires. In other embodiments, the specific number of winding rollers 200, brakes 100, wire exit components 400, and elastic tensioning components 600 can be adaptively adjusted according to actual needs. This embodiment does not impose a specific limitation.

[0054] Furthermore, in this embodiment, the brake 100 is a magnetic powder brake. The specific structure and braking principle of the magnetic powder brake are existing technologies and will not be described in detail here.

[0055] As an optional solution, such as Figure 4 and Figure 5As shown, the guide assembly 300 includes a first guide frame 310, a second guide frame 320, and a guide tube 330. The first guide frame 310 has a first guide opening that extends through in a preset direction. The second guide frame 320 is connected to the end of the first guide frame 310 near the winding roller 200 in the preset direction. The second guide frame 320 has a second guide opening that extends through in the preset direction. The guide tube 330 is located at the end of the second guide frame 320 near the winding roller 200 in the preset direction. The guide tube 330 has a central through hole. One end of the central through hole is directly opposite the second guide opening, and the other end of the central through hole is directly opposite the annular winding groove 210. The first guide opening, the second guide opening, and the central through hole together form a through path extending in the preset direction. By sequentially arranging the first guide frame 310, the second guide frame 320, and the guide tube 330 along a preset direction, and positioning the guide tube 330 at one end close to the winding roller 200 along the preset direction, a first guide opening is provided in the first guide frame 310, a second guide opening is provided in the second guide frame 320, and one end of the central through hole of the guide tube 330 is aligned with the second guide opening along the preset direction, while the other end is aligned with the annular winding groove 210 along the preset direction. The first guide opening, the second guide opening, and the central through hole together form a through-path, thereby achieving the guiding and transmission of the wire along the preset direction.

[0056] It should be noted that in this embodiment, the guide assembly 300 is provided with 48 guide tubes 330, the first guide frame 310 is provided with 48 first guide ports spaced apart along its length, and the second guide frame 320 is provided with 48 second guide ports spaced apart along its length, so as to realize the simultaneous isolated transmission of 48 wires by the guide assembly 300. Furthermore, in this embodiment, the preset direction is the front-to-back direction. In other embodiments, the specific direction of the preset direction can be adjusted according to actual needs; this embodiment does not impose specific limitations.

[0057] Optionally, the tensioning device also includes multiple wire guide rollers 500, each wire guide roller 500 is provided with a preset number of auxiliary isolation grooves, each wire guide roller 500 can simultaneously isolate and transport a preset number of wires, the wire guide rollers 500 are disposed between the wire exit assembly 400 and the winding roller 200, and each set of wire exit assemblies 400 is correspondingly disposed with a set of wire guide rollers 500.

[0058] As an optional solution, such as Figure 4As shown, the first guide frame 310 is provided with a plurality of isolation posts 311. A through groove 312 extending along a preset direction is formed on the first guide frame 310. The plurality of isolation posts 311 are spaced apart along the length of the through groove 312, and each isolation post 311 extends into the through groove 312 in a direction perpendicular to the preset direction. The gap between two adjacent isolation posts 311 forms a first guide opening. By forming a through groove 312 extending along a preset direction on the first guide frame 310, and by having the plurality of isolation posts 311 spaced apart along the length of the first guide frame 310 extend into the through groove 312 in a direction perpendicular to the preset direction, the gap between two adjacent isolation posts 311 forms a first guide opening. This allows for adjustment of the gap between two adjacent isolation posts 311 according to actual needs, thereby changing the size of the first guide opening along its length to accommodate different specifications of wires and improve applicability. It should be noted that in this embodiment, the preset direction is the front-to-back direction, and the length direction of the first guide frame 310 is the left-to-right direction. Multiple isolation posts 311, spaced apart along the left-right direction, extend into the through slots 312 along the up-down direction. In other embodiments, it is only necessary to ensure that the length direction of the first guide frame 310 is on the same horizontal plane and perpendicular to each other with the preset direction.

[0059] Furthermore, in this embodiment, the second guide frame 320 is provided with a plurality of guide holes 321 spaced apart along the length direction of the first guide frame 310. Each guide hole 321 is directly opposite a first guide opening and a guide tube 330 in a preset direction. By providing a plurality of guide holes 321 spaced apart along the length direction of the first guide frame 310 on the second guide frame 320, and using the guide holes 321 as second guide openings, so that each guide hole 321 corresponds to a central through hole in a first guide opening and a guide tube 330, the structure of the second guide frame 320 can be simplified. In other embodiments, the second guide frame 320 may be configured with the same structure as the first guide frame 310, or the first guide frame 310 may be configured with the same structure as the second guide frame 320. This embodiment does not impose specific limitations.

[0060] Combination Figure 7The specific structure of the annular winding groove 210 is described below. A fixing groove 211 is provided on the side wall of the annular winding groove 210. The fixing groove 211 extends axially around the winding roller 200 and forms a closed annulus. The winding roller 200 also includes elastic washers 220. Elastic washers 220 are fixed within each fixing groove 211. The elastic washers 220 are configured to radially limit and fix the wire along the winding roller 200. By providing fixing grooves 211 on the side wall of the annular winding groove 210, forming a closed annulus around the winding roller 200, and fixing elastic washers 220 within the fixing grooves 211, the elastic washers 220 are fixed within the fixing grooves 211. By using the elastic washers 220 to radially limit and fix the wire along the winding roller 200, slippage of the wire within the annular winding groove 210 can be prevented, ensuring the rotational braking effect of the brake 100 on the winding roller 200.

[0061] Specifically, the cross-section of the elastic washer 220 is circular, and the cross-section of the fixing groove 211 is semi-circular. When the elastic washer 220 is fixed in the fixing groove 211, half of the elastic washer 220 is fixed in the fixing groove 211, and the other half of the elastic washer 220 extends outward from the side wall of the annular winding groove 210. The part of the elastic washer 220 that extends outward from the side wall of the annular winding groove 210 is configured to abut against the wire.

[0062] To further prevent the wire from slipping in the annular winding groove 210, a fixing groove 211 is provided on each of the two side walls of the annular winding groove 210. The two fixing grooves 211 are arranged opposite each other along the axial direction of the winding roller 200. An elastic washer 220 is fixed in each fixing groove 211. The two elastic washers 220 together limit and fix the wire along the radial direction of the winding roller 200.

[0063] In an alternative embodiment, such as Figures 1-3As shown, the cable delivery assembly 400 includes an extension rod 410, a cable delivery wheel 420, a first pivot 430, and a second pivot 440. The first pivot 430 and the second pivot 440 are respectively connected to the two ends of the extension rod 410 along its axial direction. The first pivot 430 is rotatably connected to the cable delivery wheel 420, which can simultaneously transmit a preset number of cables. The second pivot 440 is rotatably connected to the frame 700. The elastic tensioning assembly 600 is connected to the extension rod 410 and can drive the extension rod 410 to rotate relative to the frame 700. By setting a first pivot 430 and a second pivot 440 at both ends of the extension rod 410, the lead wheel 420 is rotatably connected to the first pivot 430, and the frame 700 of the tensioning device is rotatably connected to the second pivot 440. The elastic tensioning component 600 is adjacent to the extension rod 410. When the wire passes over the lead wheel 420 from above, the wire will drive the lead wheel 420 to rotate and drive the extension rod 410 to rotate downward relative to the frame 700. The rotation of the extension rod 410 will cause the elastic tensioning component 600 to be stretched. When the wire at the winding nozzle stops winding, the elastic tensioning component 600 will reset under its own elastic force, driving the extension rod 410 to rotate upward relative to the frame 700, thereby restoring the elastic tension of the wire and preventing the wire from becoming loose.

[0064] In this embodiment, as Figure 6 As shown, the first pivot member 430 is provided with a mounting groove 431, the opening of the mounting groove 431 faces downward, and the bottom of the mounting groove 431 is provided with four mating grooves 4311, each mating groove 4311 corresponding to accommodate one wire, so as to isolate each wire during the conveying of the four wires.

[0065] Optionally, such as Figure 1 and Figure 3 As shown, the elastic tensioning assembly 600 includes an elastic telescopic member 610, a first connecting member 620, and a second connecting member 630. The elastic telescopic member 610 is capable of elastically extending and retracting along its own axial direction. The first connecting member 620 is connected to the extension rod 410, and the second connecting member 630 is connected to the frame 700. The axial ends of the elastic telescopic member 610 are pivotally connected to the first connecting member 620 and the second connecting member 630, respectively. By setting the first connecting member 620 on the extension rod 410 and the second connecting member 630 on the frame 700, and pivotally connecting the axial ends of the elastic telescopic member 610 to the first connecting member 620 and the second connecting member 630, the extension rod 410 can drive the elastic telescopic member 610 to extend and retract along its own axial direction, thereby satisfying the elastic tension of the wire by the elastic telescopic member 610. It should be noted that in this embodiment, the elastic telescopic member 610 is a spring. Hooks are provided at both axial ends of the spring, and the hooks are pivotally connected to the first connecting member 620 and the second connecting member 630, respectively.

[0066] Furthermore, to improve the elastic tension effect on the wire, the installation positions of the first connector 620 and the extension rod 410 are adjustable along the axial direction of the extension rod 410. By adjusting the installation position of the first connector 620 along the axial direction of the extension rod 410, when the elastic telescopic member 610 deforms by the same distance, the corresponding rotation angle of the extension rod 410 relative to the frame 700 is different. When the extension rod 410 rotates by the same angle relative to the frame 700, the actual deformation of the elastic telescopic member 610 is different, allowing adjustment of the actual tension force of the elastic telescopic member 610 on the wire according to actual needs. It should be noted that, to improve the protection of the wire, the actual tension force of the elastic telescopic member 610 on the wire should be as small as possible, while ensuring the tension effect on the wire.

[0067] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A tensioning device, characterized in that, include: A guide assembly (300) is provided with multiple through-paths, each of which is used to accommodate a wire; At least two winding rollers (200) are arranged sequentially along the axial direction. Each winding roller (200) has multiple annular winding grooves (210) extending around the axial direction. The end of each passage path is corresponding to one of the annular winding grooves (210). At least two brakes (100), each of the brakes (100) being connected to one of the winding rollers (200), the brakes (100) being configured to increase the resistance of the winding rollers (200) to rotation about the axial direction; Multiple sets of wire exit assemblies (400), each set of wire exit assemblies (400) is capable of transmitting a preset number of wires wound around the winding roller (200) and transmitting the wires to the winding nozzle; as well as Multiple sets of elastic tensioning components (600) are provided, each set of elastic tensioning components (600) is corresponding to a set of wire output components (400), and the elastic tensioning components (600) can drive the wire output components (400) to elastically tension the wire.

2. The tensioning device according to claim 1, characterized in that, The guide assembly (300) includes: A first guide frame (310) is provided inside the first guide frame (310) and a first guide opening is provided through it in a preset direction; The second guide frame (320) is connected to the end of the first guide frame (310) near the winding roller (200) along the preset direction, and the second guide frame (320) is provided with a second guide opening extending through along the preset direction; and A guide tube (330) is disposed at one end of the second guide frame (320) along the preset direction near the winding roller (200). The guide tube (330) has a central through hole. One end of the central through hole is directly opposite the second guide opening along the preset direction, and the other end of the central through hole is directly opposite the annular winding groove (210) along the preset direction. The first guide opening, the second guide opening, and the central through hole together form the through path extending along the preset direction.

3. The tensioning device according to claim 2, characterized in that, The first guide frame (310) is provided with a plurality of isolation posts (311). The first guide frame (310) has a through groove (312) extending along the preset direction. The plurality of isolation posts (311) are spaced apart along the length direction of the through groove (312). The plurality of isolation posts (311) extend into the through groove (312) in a direction perpendicular to the preset direction. The gap between two adjacent isolation posts (311) forms the first guide opening.

4. The tensioning device according to claim 3, characterized in that, The second guide frame (320) is provided with a plurality of guide holes (321) spaced apart along the length direction of the through groove (312), and each guide hole (321) is directly opposite to a first guide opening and a guide tube (330) along the preset direction.

5. The tensioning device according to claim 1, characterized in that, A fixing groove (211) is provided on the side wall of the annular winding groove (210). The fixing groove (211) extends around the axial direction of the winding roller (200) and forms a closed annulus. The winding roller (200) also includes an elastic washer (220). The elastic washer (220) is fixed in the fixing groove (211). The elastic washer (220) is configured to limit and fix the wire along the radial direction of the winding roller (200).

6. The tensioning device according to claim 5, characterized in that, The elastic washer (220) has a circular cross-section, and the fixing groove (211) has a semi-circular cross-section. When the elastic washer (220) is fixed in the fixing groove (211), half of the elastic washer (220) is fixed in the fixing groove (211), and the other half of the elastic washer (220) extends outward from the side wall of the annular winding groove (210). The portion of the elastic washer (220) extending outward from the side wall of the annular winding groove (210) is configured to abut against the wire.

7. The tensioning device according to claim 5, characterized in that, The two side walls of the annular winding groove (210) are provided with fixing grooves (211). The two fixing grooves (211) are arranged opposite to each other along the axial direction of the winding roller (200). Each fixing groove (211) is fixed with an elastic washer (220). The two elastic washers (220) together limit and fix the wire along the radial direction of the winding roller (200).

8. The tensioning device according to claim 7, characterized in that, The cable outlet assembly (400) includes an extension rod (410), a cable outlet wheel (420), a first pivot (430), and a second pivot (440); The first pivot (430) and the second pivot (440) are respectively connected to the two ends of the extension rod (410). The first pivot (430) is rotatably connected to the wire output wheel (420). The wire output wheel (420) can transmit a preset number of wires at the same time. The second pivot (440) is rotatably connected to the frame (700), the elastic tensioning assembly (600) is connected to the extension rod (410), and the elastic tensioning assembly (600) can drive the extension rod (410) to rotate relative to the frame (700).

9. The tensioning device according to claim 8, characterized in that, The elastic tensioning assembly (600) includes: The elastic telescopic component (610) is capable of elastic expansion and contraction along its own axis; The first connector (620) and the second connector (630) are connected to the extension rod (410) and the second connector (630) is connected to the frame (700). The two axial ends of the elastic telescopic member (610) are pivotally connected to the first connector (620) and the second connector (630) respectively.

10. The tensioning device according to claim 9, characterized in that, The mounting positions of the first connector (620) and the extension rod (410) are adjustable along the axial direction of the extension rod (410).

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