Loudspeaker rear magnet assembling and positioning tool
The multi-level positioning and adsorption design of the speaker rear magnet assembly positioning tooling solves the problem of poor bonding offset and warping between the rear magnet and the T-iron, achieving higher bonding accuracy and production efficiency.
Patent Information
- Application Number
- CN202422812294.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-11-19
AI Technical Summary
In existing speaker production, the bonding of the rear magnet and the T-iron relies on manual operation, which has low efficiency and low precision, and is prone to problems such as bonding offset and warping.
The speaker rear magnet assembly and positioning fixture utilizes a multi-stage positioning and foolproof design. The first and second positioning sections respectively accommodate the speaker assembly and the rear magnet, and the adsorption magnets are used to adsorb and position the frame and the rear magnet to ensure precise bonding.
The bonding accuracy between the rear magnet and the T iron is improved, the defective rate is reduced, the consistency and quality stability of the product are improved, and the production efficiency is enhanced.
Smart Images
Figure CN223463133U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of loudspeakers, in particular to a loudspeaker rear magnet assembly positioning tool. BACKGROUND
[0002] Reference Figure 1 An existing loudspeaker comprises a frame, a vibration system installed in the frame, and a magnetic system installed below the frame, wherein the magnetic system comprises, from top to bottom, a dust shield, a main magnet, a T-shaped iron, and a rear magnet (i.e., a rear magnet). In the production process of the loudspeaker, the rear magnet and the T-shaped iron are bonded together after the other components except the rear magnet are assembled into an integrated loudspeaker assembly.
[0003] In the conventional production process, the bonding of the rear magnet and the T-shaped iron relies on manual alignment or a simple positioning tool, which has low efficiency and low precision. In addition, the rear magnet is usually made of ferrite, which has a large size error. Combined with the instability of manual operation, the bonding of the rear magnet and the T-shaped iron is prone to deviation and warping, which affects the product quality and production efficiency. CONTENT OF THE INVENTION
[0004] The technical problem solved by the present application is to provide a loudspeaker rear magnet assembly positioning tool to improve the bonding precision of the rear magnet and the T-shaped iron, reduce defects, and improve efficiency.
[0005] The loudspeaker rear magnet assembly positioning tool provided by the present application comprises a jig body having an upper surface and a lower surface, a positioning hole formed in the jig body and comprising a first positioning section and a second positioning section from top to bottom, the diameter of the first positioning section being greater than that of the second positioning section, the first positioning section being used to accommodate a positioned loudspeaker assembly, and the second positioning section being used to accommodate a positioned rear magnet to be assembled, a first adsorbing magnet embedded in the upper surface of the jig body and used to adsorb and position the frame of the loudspeaker assembly, and a second adsorbing magnet embedded in the lower surface of the jig body and used to adsorb and position the rear magnet.
[0006] In some optional embodiments, the tool further comprises an avoidance position formed in the jig body and located on one side of the first positioning section, which is used to avoid the terminal of the loudspeaker assembly.
[0007] In some optional embodiments, the depth of the avoidance position is less than that of the first positioning section.
[0008] In some optional embodiments, the tool further comprises a through hole penetrating through the second positioning section and the lower surface of the jig body.
[0009] In some alternative embodiments, further comprising: a pin hole reaching the second adsorbing magnet from a side of the jig body, for installing a pin, the pin being used to fix the second adsorbing magnet.
[0010] In some alternative embodiments, the first adsorbing magnet is multiple, and is evenly distributed circumferentially around the first positioning section.
[0011] In some alternative embodiments, the second adsorbing magnet is multiple, and is evenly distributed circumferentially around the axis of the jig body.
[0012] In some alternative embodiments, the second adsorbing magnet is two, and is symmetrically distributed relative to the axis of the jig body.
[0013] In some alternative embodiments, the jig body is cylindrical.
[0014] In some alternative embodiments, the diameter of the jig body is greater than the diameter of the loudspeaker assembly.
[0015] In order to solve the problem existing in the bonding process of the rear magnet and the T iron in the production process of the loudspeaker, the application provides a loudspeaker rear magnet assembly positioning tool, which adopts multi-stage positioning and foolproof design, uses the first positioning section and the second positioning section to accommodate the loudspeaker assembly and the rear magnet to be assembled respectively, and uses the first adsorbing magnet and the second adsorbing magnet to adsorb and position the basket of the loudspeaker assembly and the rear magnet respectively, so as to improve the bonding precision of the rear magnet and the T iron in the loudspeaker assembly, avoid bonding deviation and lifting defects, improve product yield, enhance product consistency and quality stability, and improve production efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings needed in the embodiments and the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.
[0017] Figure 1 is a cross-sectional view of a loudspeaker rear magnet assembly positioning tool provided by an embodiment of the application;
[0018] Figure 2 is a top view of a loudspeaker rear magnet assembly positioning tool provided by an embodiment of the application. DETAILED DESCRIPTION
[0019] To help those skilled in the art better understand the present invention, the following will provide a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. It is clear that the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work should fall within the scope of protection of the present invention.
[0020] The terms "first," "second," "third," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a particular order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.
[0021] The following describes the embodiments in detail.
[0022] refer to Figure 1 and Figure 2 , an embodiment of the present application proposes a loudspeaker rear magnet assembly and positioning tool, which is suitable for the bonding process of the rear magnet and the T-iron in the loudspeaker production process. The purpose of the bonding process is to accurately bond the rear magnet to be assembled with the T-iron in the loudspeaker assembly, wherein the loudspeaker assembly includes an assembled basin frame, a vibration system (including a vibration basin, a voice coil and a spring, etc.), a washer, a main magnet, a T-iron, etc. The operation of the bonding process is generally to first coat the surface of the rear magnet with an adhesive material such as glue, and then bond it with the T-iron. The tooling of the present application is suitable for positioning the loudspeaker assembly and the rear magnet in the bonding process to ensure that the two are accurately bonded together.
[0023] like Figures 1-2 As shown, the tooling of this application includes:
[0024] The fixture body 10 has an upper surface 101 and a lower surface 102;
[0025] The positioning hole is formed in the fixture body 10 and includes, from top to bottom, a first positioning section 11 and a second positioning section 12. The diameter of the first positioning section 11 is larger than the diameter of the second positioning section 12. The first positioning section 11 is used to accommodate the positioning of the speaker assembly, and the second positioning section 12 is used to accommodate the positioning of the rear magnet (i.e., the secondary magnet) to be assembled.
[0026] The first adsorption magnet 13 is embedded in the upper surface 101 of the fixture body 10 and is used to adsorb and position the basin frame of the speaker assembly;
[0027] The second adsorption magnet 14 is embedded in the lower surface 102 of the jig body 10 and used for adsorbing the rear magnet after positioning.
[0028] Here, the jig body 10 can be in a cylindrical shape and can be made of non-magnetic metal, non-metal or the like.
[0029] Here, the first positioning section 11 and the second positioning section 12 can be holes with a circular cross section and can be coaxially designed with the jig body 10. The T iron, the main magnet and the voice coil of the speaker assembly and the lower end of the basket can extend into the first positioning section 11, and the diameter of the first positioning section 11 can match the outer diameter of the main magnet (and the diameter of a certain position of the basket), so as to realize positioning of the speaker assembly. The diameter of the second positioning section 12 can match the outer diameter of the rear magnet, so as to realize positioning of the rear magnet.
[0030] Here, the first adsorption magnet 13 can be made of aluminum-iron-boron material, for example, and its functions include: positioning and ensuring that the entire assembly is placed flat when the speaker assembly is placed, and when not completely placed, the entire assembly is placed flat by adsorbing the basket through the magnetic steel, thereby preventing the loudspeaker from being bonded to the rear magnet and preventing problems such as tilting.
[0031] Here, the second adsorption magnet 14 can be made of aluminum-iron-boron material, for example, and its functions include: adsorbing, positioning and fixing the rear magnet to be assembled.
[0032] In some optional embodiments, the tool of the present application further comprises: a clearance position 15, which is provided in the jig body 10 and located on one side of the first positioning section 11 and in communication with the first positioning section 11, and used for avoiding the terminal of the speaker assembly.
[0033] In some optional embodiments, the depth of the clearance position 15 is less than the depth of the first positioning section 11.
[0034] In some optional embodiments, the tool of the present application further comprises: a through hole 16, which penetrates the second positioning section 12 and the lower surface 102 of the jig body 10.
[0035] In some optional embodiments, the tool of the present application further comprises: a pin hole 17, which reaches the second adsorption magnet 14 from the side surface of the jig body 10 and used for installing a pin, which is used for fixing the second adsorption magnet 14.
[0036] In some optional embodiments, the first adsorption magnet 13 has a plurality of magnets, which are uniformly distributed in the circumferential direction of the first positioning section. For example, four first adsorption magnets are uniformly distributed in the axial direction.
[0037] In some alternative embodiments, the second adsorption magnet 14 is provided in plurality, and is arranged below the second positioning section 12. For example, the second adsorption magnet 14 is provided in two, and is symmetrically arranged relative to the axis of the jig body 10.
[0038] In some alternative embodiments, the diameter of the jig body 10 is greater than the diameter of the loudspeaker assembly.
[0039] In some alternative embodiments, the jig of the present application,
[0040] In the above, the embodiment of the present application proposes a jig for assembling and positioning the rear magnet of a loudspeaker. The first positioning section 11 is mainly used for positioning the loudspeaker assembly (positioning the main magnet and the basket) and providing effective support for the basket of the loudspeaker assembly. The second positioning section 12 is arranged below the first positioning section and has a slightly smaller diameter, which corresponds to the recess at the bottom of the first positioning section 11, and is used for placing the rear magnet. The second adsorption magnet 14 (arranged below the second positioning section 11) embedded in the lower surface of the jig body 10, for example, is provided in two, and functions to adsorb the rear magnet of the loudspeaker under the action of magnetic force. The first adsorption magnet 13 (surrounding the periphery of the first positioning section 12) embedded in the upper surface of the jig body 10 functions to adsorb the basket (for example, made of iron), preventing the risk of magnetic jumping when the T iron and the rear magnet are bonded, resulting in the loudspeaker popping up and appearing to be warped.
[0041] The operation process of the jig of the present application can include:
[0042] The rear magnet is placed into the second positioning section 12 of the jig body 10, and glue (for example, AB glue) is injected onto the rear magnet. The T iron of the loudspeaker assembly is placed into the first positioning section 11 of the jig with the T iron facing downward, so that the T iron and the rear magnet are bonded. In this process, the first adsorption magnet 13 and the second adsorption magnet 14 adsorb and position the basket and the rear magnet, respectively, so that the loudspeaker assembly and the rear magnet are tightly bonded. After drying (for example, 3 min of online oven drying + 5 min of natural drying), the AB glue is dried, and the finished loudspeaker can be taken out, completing the entire rear magnet bonding process.
[0043] The jig of the embodiment of the present application has the following characteristics:
[0044] 1. Design the first positioning section to use the outer diameter of the speaker's main magnet (external magnetic steel) as the positioning, and design the second positioning section to use the outer diameter of the speaker's secondary magnet (the rear magnet at the bottom) as the positioning. Open, for example, four slots at the four corners of the front of the tooling, and place four, for example, aluminum iron boron magnets as the first adsorption magnets to adsorb and position the speaker assembly's basin frame. This embodiment uses multi-stage positioning to accurately bond the rear magnet to the T-iron of the speaker assembly, solving the current industry problem of magnet offset and warping during the post-bonding process. This can significantly reduce product defect rates and save costs for rework, repair, and scrapping.
[0045] 2. The tooling of the present application takes into account the problem that the terminals of the speaker assembly may interfere with the tooling, so a U-shaped groove with a length of, for example, 25 mm is designed as an avoidance position 15 to avoid the terminal. This size can be looser than the speaker terminal part to prevent interference from part tolerances and assembly errors after the speaker is assembled.
[0046] 3. In the bonding process, place the rear magnet into the tooling, and then place the tooling with the rear magnet on the glue injection turntable for glue injection. The glue injection position is on the rear magnet, and the speaker assembly is placed in and bonded. Through the above operations, under the positioning of the tooling, the rear magnet and the T iron are concentric and will not deviate.
[0047] In summary, the tooling of the present application can be used in the production process to perform multi-level positioning and fool-proofing of components such as the rear magnet (auxiliary magnet), main magnet, basin frame, and terminal. With the support of multi-level positioning, the rear magnet will not be offset. At the same time, a slot is opened on the upper surface of the fixture body, and a first adsorption magnet made of aluminum iron boron material can be placed to adsorb the speaker basin frame to prevent magnetic jumping after the rear magnet is bonded. The above design solves the problem of offset and warping of the rear magnet after bonding in the industry, greatly improving the product yield of the production line. Through the various operations of tooling positioning bonding, adsorption, positioning and fool-proofing, the product consistency is stronger, and the quality is more stable and reliable.
[0048] The technical solution of the present application has been described in detail above through specific embodiments. In the above embodiments, the description of each embodiment has its own focus. For parts not described in detail in one embodiment, please refer to the relevant description of other embodiments.
[0049] It should be understood that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit them. Persons skilled in the art may modify the technical solutions described in the above embodiments or replace some of the technical features with equivalents; however, such modifications or replacements do not deviate from the spirit and scope of protection of the technical solutions of the embodiments of this application.
Claims
1. A speaker rear magnet assembly positioning tool, characterized by, Comprising: a jig body having an upper surface and a lower surface; a positioning hole formed in the jig body, comprising a first positioning section and a second positioning section from top to bottom, the diameter of the first positioning section being larger than that of the second positioning section, the first positioning section being used for accommodating a positioning loudspeaker assembly, and the second positioning section being used for accommodating a positioning rear magnet to be assembled; a first adsorbing magnet embedded in the upper surface of the jig body, used for adsorbing and positioning the loudspeaker assembly; a second adsorbing magnet embedded in the lower surface of the jig body, used for adsorbing and positioning the rear magnet.
2. The speaker rear magnet assembly positioning tooling of claim 1, wherein, Further comprising: a clearance opening formed in the jig body, located at one side of the first positioning section, used for avoiding the terminal of the loudspeaker assembly.
3. The speaker rear magnet assembly positioning tool of claim 2, wherein, The depth of the clearance opening is less than that of the first positioning section.
4. The speaker rear magnet assembly positioning tool of claim 1, wherein, Further comprising: a through hole penetrating through the second positioning section and the lower surface of the jig body.
5. The speaker rear magnet assembly positioning tool of claim 1, wherein, Further comprising: a pin hole reaching the second adsorbing magnet from the side surface of the jig body, used for installing a pin, which is used for fixing the second adsorbing magnet.
6. The speaker rear magnet assembly positioning fixture of claim 1, wherein, The first adsorbing magnet has multiple, and is uniformly distributed around the first positioning section.
7. The speaker rear magnet assembly positioning tool of claim 1, wherein, The second adsorbing magnet has multiple, and is arranged below the second positioning section.
8. The speaker rear magnet assembly positioning fixture of claim 1, wherein, The second adsorbing magnet has two, and is symmetrically distributed relative to the axis of the jig body.
9. The speaker rear magnet assembly positioning fixture of claim 1, wherein, The jig body is in a cylindrical shape.
10. The speaker rear magnet assembly positioning fixture of claim 1, wherein, The diameter of the jig body is larger than that of the loudspeaker assembly.