A fixture for determining the curvature of the brocade thread and the center position of the voice coil

Abstract

This utility model discloses a fixture for fixing the curvature of a nylon thread and the center position of a voice coil, comprising: multiple sets of fixing posts, all mounted on the top of a fixing plate; and a slot formed at the upper end of the fixing posts for bending the nylon thread into an arc shape. This utility model, through the design of the arc-shaped positioning block, fixing posts, and arc-shaped slot, uses the arc-shaped positioning block to position the center of the voice coil when it is placed on the block, preventing center displacement. Furthermore, the fixing posts and arc-shaped slot work together to bend the nylon thread into an arc shape by placing it within the arc-shaped slot, standardizing the curvature of the nylon thread and avoiding irregular deformation and inconsistent curvature. The synergistic effect of the arc-shaped positioning block, fixing posts, and arc-shaped slot improves the stability of the product's sound quality and increases the yield rate.

Description

Technical Field

[0001] This utility model relates to the field of voice coil positioning fixture technology, specifically a fixture for determining the curvature of the brocade wire and the center position of the voice coil. Background Technology

[0002] In the field of loudspeaker manufacturing, the precise installation of the voice coil and nylon wire is crucial. As the core component for loudspeaker sound production, an inaccurate centering of the voice coil can lead to uneven sound output and degraded sound quality. Traditional assembly methods rely on manual positioning, which is prone to inconsistencies in the nylon wire curvature and voice coil centering due to operational differences, resulting in unstable sound quality and low yield. Therefore, we need to propose a fixture for precisely determining the nylon wire curvature and voice coil centering. Utility Model Content

[0003] The purpose of this invention is to provide a fixture for determining the curvature of the nylon wire and the center position of the voice coil, so as to solve the problem in the background art that the nylon wire curvature is inconsistent and the voice coil center position is offset due to manual positioning of the nylon wire curvature and the center position of the voice coil.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A fixture for determining the curvature of a nylon thread and the center position of a voice coil includes: a base plate with a fixing plate fixedly mounted on its top, wherein a plurality of arc-shaped positioning blocks for positioning the voice coil are fixedly connected to the top of the fixing plate; a fixing post, wherein a plurality of the fixing posts are provided, and the plurality of fixing posts are all installed on the top of the fixing plate; and a slot formed at the upper end of the plurality of fixing posts for bending the nylon thread in an arc shape.

[0006] Preferably, the bottom of each of the multiple sets of fixed columns is fixedly connected to a polygonal positioning column, and the top of the fixed plate is provided with an insertion groove adapted to the polygonal positioning column, and the polygonal positioning column is inserted into the insertion groove.

[0007] Preferably, a first magnet is attached to the bottom of the polygonal positioning post, and a second magnet is attached to the inner top of the insertion slot. The first magnet and the second magnet attract each other, and the fixing post is fixed to the top of the fixing plate by the attraction of the first magnet and the second magnet.

[0008] Preferably, it further includes a positioning frame, which is fixedly connected to the top of the fixing plate, and the arc-shaped positioning block is located on the central axis of the positioning frame.

[0009] Preferably, it also includes a positioning shell, which has a placement hole and is placed on top of the fixing plate. The bottom of the positioning shell has a clearance groove that matches the positioning frame, and the positioning frame is inserted into the clearance groove.

[0010] Preferably, the positioning shell has two sets of through holes corresponding to the fixing posts, and the fixing posts are inserted into the through holes.

[0011] Preferably, the positioning shell has a insertion hole for the brocade thread to pass through.

[0012] Preferably, two sets of positioning blocks are symmetrically and fixedly connected in the clearance groove, and the positioning frame is provided with a positioning groove that matches the positioning block, and the positioning block is inserted into the positioning groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a design incorporating an arc-shaped positioning block, a fixing post, and an arc-shaped slot. The arc-shaped positioning block positions the voice coil's center when it is fitted onto the block, preventing center displacement. The fixing post, in conjunction with the arc-shaped slot, allows the nylon thread to be placed within the slot, which then bends the thread in an arc shape, standardizing its curvature and preventing irregular deformation or inconsistent curvature. This synergistic design of the arc-shaped positioning block, fixing post, and arc-shaped slot enhances the product's sound quality stability and improves yield. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural diagram of the present invention when disassembled;

[0017] Figure 3 This is a schematic diagram of the positioning shell of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the present invention, including the fixing plate, the arc-shaped positioning block, the positioning frame, and the fixing column.

[0019] In the diagram: 1. Base plate; 2. Fixing plate; 3. Arc-shaped positioning block; 4. Positioning frame; 5. Clearance part; 6. Fixing post; 7. Slot; 8. Voice coil; 9. Brocade thread; 10. Positioning shell; 11. Placement hole; 12. Clearance groove; 13. Through hole; 14. Insertion hole; 15. Positioning block; 16. Polygonal positioning post; 17. First magnet; 18. Insertion groove; 19. Second magnet; 20. Positioning groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution:

[0022] A fixture for determining the curvature of a nylon thread and the center position of a voice coil includes: a base plate 1, on which a fixing plate 2 is fixedly installed, and a plurality of arc-shaped positioning blocks 3 for positioning the voice coil are fixedly connected to the top of the fixing plate 2; a fixing post 6, which is provided in a plurality of sets, all of which are installed on the top of the fixing plate 2; and a slot 7, which is formed at the upper end of the plurality of fixing posts 6 for bending the nylon thread in an arc shape.

[0023] It should be noted that the curvature of the arc-shaped positioning block 3 matches the curvature of the inner wall of the voice coil 8. When the voice coil 8 is fitted onto the arc-shaped positioning block 3, it can fit tightly, thereby strictly limiting the position of the voice coil 8 and effectively preventing the center position of the voice coil 8 from shifting during the assembly process. This lays a solid foundation for the subsequent precise welding of the brocade wire 9 and the voice coil 8.

[0024] The slot 7 allows the filament wire 9 to be bent into the desired arc shape. By securing the filament wire 9 within the slot 7 for arc bending, irregular deformation of the filament wire 9 is avoided, and the arc of multiple sets of filament wire 9 after bending is ensured to be consistent, greatly improving product consistency and quality stability. Moreover, after arc bending, one end of the filament wire 9 can accurately contact the voice coil 8, facilitating subsequent soldering and fixing operations.

[0025] In an optional embodiment: such as Figure 4 As shown, the bottom of each of the multiple sets of fixed posts 6 is fixedly connected to a polygonal positioning post 16, and the top of the fixed plate 2 is provided with an insertion groove 18 that is adapted to the polygonal positioning post 16, and the polygonal positioning post 16 is inserted into the insertion groove 18.

[0026] It should be noted that the polygonal positioning post 16 and the insertion slot 18 work together to accurately position the fixing post 6, while also allowing the position of the fixing post 6 to be adjusted according to actual needs, thereby flexibly changing the bending arc of the brocade thread 9 to meet the assembly requirements of different products.

[0027] In an optional embodiment: such as Figure 4As shown, a first magnet 17 is attached to the bottom of the polygonal positioning post 16, and a second magnet 19 is attached to the inner top of the insertion slot 18. The first magnet 17 and the second magnet 19 attract each other, and the fixing post 6 is fixed to the top of the fixing plate 2 by the attraction of the first magnet 17 and the second magnet 19.

[0028] It should be noted that by using the first magnet 17 and the second magnet 19 together, the fixing post 6 can be attracted and fixed to the top of the fixing plate 2. This not only improves the stability of the fixing post 6 after installation and prevents the fixing post 6 from shifting during assembly, but also enables the quick installation and disassembly of the fixing post 6, which significantly improves the convenience of operation and work efficiency.

[0029] In an optional embodiment: such as Figure 2 and Figure 4 As shown, it also includes a positioning frame 4, which is fixedly connected to the top of the fixing plate 2, and the arc-shaped positioning block 3 is located on the central axis of the positioning frame 4.

[0030] It should be noted that by placing the arc-shaped positioning block 3 on the central axis, the position of the positioning shell 10 can be offset after it is installed on the fixing plate 2, ensuring that the positioning shell 10 and components such as the arc-shaped positioning block 3 and the fixing column 6 are in the correct relative position, thus ensuring the smooth assembly of the voice coil 8 and the brocade wire 9.

[0031] In addition, the clearance part 5 on the positioning frame 4 provides operating space for the fingers when the staff installs or removes the voice coil 8, which facilitates the operation and further improves work efficiency.

[0032] In an optional embodiment: such as Figures 1 to 3 As shown, it also includes a positioning shell 10, which has a placement hole 11. The positioning shell 10 is placed on the top of the fixing plate 2. The bottom of the positioning shell 10 has a relief groove 12 that matches the positioning frame 4. The positioning frame 4 is inserted into the relief groove 12.

[0033] The positioning shell 10 has two sets of through holes 13 corresponding to the fixing post 6. The fixing post 6 is inserted into the through holes 13. The positioning shell 10 has insertion holes 14 for the silk thread to pass through.

[0034] It should be noted that by setting the placement hole 11, the arc-shaped positioning block 3 can be exposed, which facilitates the fitting of the voice coil 8 onto the arc-shaped positioning block 3 and the assembly operation of the brocade wire 9 and the voice coil 8.

[0035] The insertion hole 14 provides a guide for threading the brocade thread 9.

[0036] In an optional embodiment: such as Figure 3As shown, two sets of positioning blocks 15 are symmetrically fixedly connected in the clearance groove 12. The positioning frame 4 is provided with a positioning groove 20 that matches the positioning block 15, and the positioning block 15 is inserted into the positioning groove 20.

[0037] It should be noted that the avoidance groove 12 cooperates with the positioning frame 4 and the positioning block 15 cooperates with the positioning groove 20 to position the positioning shell 10, improve the stability of the positioning shell 10 installed on the fixed plate 2, prevent the positioning shell 10 from shaking, and ensure the stability and accuracy of the entire assembly process.

[0038] The usage process of this utility model is as follows: First, place the positioning shell 10 on the top of the fixing plate 2. After aligning the clearance groove 12 at the bottom of the positioning shell 10 with the positioning frame 4, press the positioning shell 10 vertically down so that the positioning shell 10 is stably placed on the top of the fixing plate 2. At this time, the positioning frame 4, together with the clearance groove 12 and the positioning block 15, together with the positioning groove 20, positions the positioning shell 10 to prevent the positioning shell 10 from shifting, thus preparing for subsequent assembly work.

[0039] After the positioning shell 10 is properly placed, the voice coil 8 is fitted onto the arc-shaped positioning block 3. The arc-shaped positioning block 3, with its curvature matching the inner wall of the voice coil 8, strictly positions the center of the voice coil 8, ensuring that the voice coil 8 is in the preset accurate position, preventing the center of the voice coil 8 from shifting, and creating conditions for the precise docking of the brocade wire 9 and the voice coil 8.

[0040] Next, one end of the nylon wire 9 passes through the insertion hole 14 and is then inserted into the slot 7. The nylon wire 9 is bent in an arc shape through the slot 7 to standardize the arc of the nylon wire and avoid irregular deformation and inconsistent arc. After the arc bend, one end of the nylon wire 9 contacts the voice coil 8. Finally, the nylon wire 9 is soldered to the upper terminal PIN of the voice coil 8 to fix it, thus completing the assembly of the voice coil 8.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for determining the curvature of a brocade thread and the center position of a voice coil, characterized in that, include: The base plate (1) has a fixed plate (2) fixedly installed on its top. The top of the fixed plate (2) is fixedly connected to a number of arc-shaped positioning blocks (3) for voice coil positioning. The fixing column (6) is provided in multiple sets, and all sets of the fixing column (6) are installed on the top of the fixing plate (2); The slot (7) is opened at the upper end of the multiple sets of fixed posts (6) for bending the brocade thread in an arc shape.

2. The fixture for determining the curvature of the brocade thread and the center position of the voice coil according to claim 1, characterized in that: The bottom of each of the multiple sets of fixed columns (6) is fixedly connected to a polygonal positioning column (16), and the top of the fixed plate (2) is provided with an insertion groove (18) that is adapted to the polygonal positioning column (16), and the polygonal positioning column (16) is inserted into the insertion groove (18).

3. The jig according to claim 2, wherein: the jig is used for a silk thread having a diameter of 0.1 mm or less. The bottom of the polygonal positioning post (16) is attached with a first magnet (17), and the top of the inner part of the insertion slot (18) is attached with a second magnet (19). The first magnet (17) and the second magnet (19) attract each other, and the fixing post (6) is fixed to the top of the fixing plate (2) by the attraction of the first magnet (17) and the second magnet (19).

4. The fixture of claim 1, wherein: It also includes a positioning frame (4), which is fixedly connected to the top of the fixing plate (2), and the arc-shaped positioning block (3) is located on the central axis of the positioning frame (4).

5. The fixture of claim 4, wherein: It also includes a positioning shell (10), which has a placement hole (11) and is placed on the top of the fixing plate (2). The bottom of the positioning shell (10) has a relief groove (12) that is compatible with the positioning frame (4), and the positioning frame (4) is inserted into the relief groove (12).

6. The fixture of claim 5, wherein: The positioning shell (10) has two sets of through holes (13) corresponding to the fixing post (6), and the fixing post (6) is inserted into the through holes (13).

7. The fixture for determining the curvature of the brocade thread and the center position of the voice coil according to claim 6, characterized in that: The positioning shell (10) has a insertion hole (14) for the brocade thread to pass through.

8. The fixture for determining the curvature of the brocade thread and the center position of the voice coil according to claim 5, characterized in that: Two sets of positioning blocks (15) are symmetrically fixedly connected in the clearance groove (12). The positioning frame (4) is provided with a positioning groove (20) that matches the positioning block (15). The positioning block (15) is inserted into the positioning groove (20).

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