An automatic soldering device for a horn

Abstract

The utility model relates to a loudspeaker soldering technology field discloses a kind of automatic soldering equipment for loudspeaker, comprising: workbench, feeding station, welding station, discharging station, back material station, transfer station, transmission carrier, positioning block, soldering execution mechanism and adjusting assembly.Workbench, feeding station, welding station, discharging station, back material station and transfer station are set on it.The feeding station, welding station and discharging station are sequentially arranged along the material conveying direction, and the back material station is connected between the feeding station and the discharging station for the reflow treatment of unqualified products.The transfer station includes first transfer station and second transfer station, and is respectively arranged at the feeding end and discharging end of the welding station for realizing the buffer transmission of material between adjacent stations.The transmission carrier is arranged on the workbench, and the transmission carrier can carry the loudspeaker and circulate along each station.

Description

Technical Field

[0001] This utility model relates to the field of speaker soldering technology, specifically to an automatic soldering device for speakers. Background Technology

[0002] In the field of electronic equipment manufacturing, the quality and performance of the loudspeaker, as an important sound-producing component, are directly affected by the quality of its manufacturing process.

[0003] Existing speaker soldering processes still have several problems: Traditional speaker soldering relies heavily on manual operation, with workers manually soldering each speaker joint one by one using hand soldering tools. This method is not only inefficient—a skilled worker can only complete a limited number of speaker solderings per day, making it difficult to meet the demands of large-scale production—but also suffers from variations in soldering techniques among different workers. Even the same worker, after prolonged work, can experience fatigue, leading to decreased soldering stability, problems such as incomplete soldering and uneven solder application, significantly impacting product defect rates.

[0004] Therefore, there is an urgent need for an automatic soldering device for speakers to solve the above problems. Utility Model Content

[0005] Based on the above, the purpose of this utility model is to provide an automatic soldering device for speakers to solve the problems of low soldering efficiency and unstable quality.

[0006] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: an automatic soldering device for speakers, comprising:

[0007] The workbench is equipped with a feeding station, a welding station, a discharging station, a return station, and a transfer station.

[0008] The feeding station, welding station, and discharging station are arranged sequentially along the material conveying direction. The return station is connected between the feeding station and the discharging station and is used for the return processing of defective products. The transfer station includes a first transfer station and a second transfer station, which are respectively located at the inlet and outlet ends of the welding station.

[0009] Used to enable buffered transfer of materials between adjacent workstations;

[0010] A transmission carrier is set on the workbench, and the transmission carrier can carry a loudspeaker and circulate along each work station.

[0011] The positioning block is reciprocally disposed in each workstation relative to the worktable. The positioning block moves to the transmission carrier flowing in the corresponding workstation and abuts or releases the transmission carrier to realize the positioning or release of the transmission carrier.

[0012] The soldering actuator, located in the welding station, includes a moving solder head and welding wire, and is used to automatically solder the positioned speaker.

[0013] The adjustment assembly, including a starting plate and a terminal plate, is reciprocally disposed between the return station and the feeding station, and between the return station and the discharge station, respectively, for returning defective products from the discharge station to the feeding station, forming a closed loop for recycling.

[0014] As a preferred embodiment of an automatic soldering device for speakers, it also includes multiple transverse conveyor belts that are interconnected. These transverse conveyor belts are used to transport the transmission carrier, enabling the transmission carrier to flow orderly between various workstations. The transverse conveyor belts are respectively located at each workstation and the adjustment component. Each transverse conveyor belt at each workstation corresponds to a feeding conveyor belt, a soldering conveyor belt, a discharging conveyor belt, a transfer conveyor belt, and a return conveyor belt.

[0015] As a preferred embodiment of an automatic soldering device for speakers, it further includes a longitudinal conveyor belt connected between the transfer conveyor belt and the worktable. The transfer conveyor belt is located at the output end of the longitudinal conveyor belt and is used to drive the transfer conveyor belt to move along its extension direction, thereby completing the transfer docking between conveyor belts between adjacent workstations.

[0016] As a preferred embodiment of an automatic soldering device for speakers, there is a height difference between the return conveyor belt and the discharge and feeding conveyors. The starting plate and the ending plate are vertically mounted at both ends of the return conveyor belt to facilitate the vertical return of defective products, thereby forming a closed loop for recycling.

[0017] As a preferred embodiment of an automatic soldering device for speakers, it further includes a connecting component disposed between the positioning block and the worktable, the connecting component being configured to cause the positioning block to abut or release against the transmission carrier.

[0018] As a preferred embodiment of an automatic soldering device for a loudspeaker, the connecting assembly includes a lifting rod and a rotating shaft. The rotating shaft is disposed on the worktable, and one end of the positioning block is rotatably connected to the rotating shaft. The lifting rod is movably disposed on the worktable and located below the positioning block. The lifting rod moves up and down to drive the positioning block to tilt or swing back around the rotating shaft, so as to enable the positioning block to abut or release the transmission carrier.

[0019] As a preferred embodiment of an automatic soldering device for speakers, it further includes an infeed-side inspection unit and an outfeed-side inspection unit, both disposed on the workbench, and respectively arranged at the infeed end and outfeed end of the soldering station, i.e., between the soldering station and the first transfer station, and between the soldering station and the second transfer station; the inspection station is used to perform pre-inspection on the speaker components that are about to enter the soldering station, and to perform quality inspection on the speaker components after soldering.

[0020] As a preferred embodiment of an automatic soldering device for speakers, both the feed-side inspection unit and the discharge-side inspection unit include a light source and a camera, both disposed on the worktable. The light source and camera are disposed above or on both sides of the transmission path of the transmission carrier and are directed toward the speakers on the transmission carrier, for image acquisition and quality inspection of the speaker appearance.

[0021] As a preferred embodiment of an automatic soldering device for speakers, it further includes a drive assembly disposed between the moving solder head and the worktable, the drive assembly being used to drive the moving solder head to automatically solder the positioned speaker.

[0022] As a preferred embodiment of an automatic soldering device for horns, the drive assembly includes an X-axis drive module, a horn soldering drive module, and a Z-axis drive module. The X-axis drive module is mounted on the worktable, the horn soldering drive module is mounted at the output end of the X-axis drive module, the Z-axis drive module is mounted at the output end of the horn soldering drive module, and the moving soldering head is disposed at the output end of the Z-axis drive module.

[0023] The beneficial effects of this utility model are as follows: By setting up feeding stations, welding stations, unloading stations, and return stations, and combining them with transfer stations and transport carriers, material circulation is achieved, improving production efficiency and automation levels. Positioning blocks are reciprocatingly positioned within each station, enabling precise positioning and release of the transport carrier, ensuring the stability and accuracy of the welding process. The soldering actuator can automatically weld the positioned speaker components, improving the consistency of welding quality. The adjustment component, through the starting and ending plates, enables intelligent return of defective products, forming a closed-loop processing flow, reducing manual intervention and lowering the defect rate. Attached Figure Description

[0024] Figure 1 A schematic diagram of the overall structure of an automatic soldering device for speakers provided by this utility model;

[0025] Figure 2 A schematic diagram of the overall structure of an automatic soldering device for a loudspeaker in the first direction for opening the protective cover door;

[0026] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0027] Figure 4 A schematic diagram of the overall structure of an automatic soldering device for speakers, provided by this utility model, showing the second direction of opening the protective cover door;

[0028] Figure 5 A top view of the automatic soldering equipment for speakers provided by this utility model, showing the opening of the protective cover door;

[0029] Figure 6 This utility model provides an overall structural diagram of the welding station in an automatic soldering device for speakers.

[0030] The following are the labeling elements in the figure:

[0031] 1. Workbench;

[0032] 2. Feeding station; 201. Feeding conveyor belt;

[0033] 3. Welding station; 301. Welding conveyor belt;

[0034] 4. Discharge station; 401. Discharge conveyor belt;

[0035] 5. Recycling station; 501. Recycling conveyor belt;

[0036] 6. Transfer station; 601. Transfer conveyor belt;

[0037] 7. Transmission carrier; 701. Carrier plate; 702. Mounting slot;

[0038] 8. Positioning block;

[0039] 9. Soldering actuator; 901. Moving soldering tip; 902. Solder wire;

[0040] 10. Adjustment component; 111. Starting plate; 112. Ending plate;

[0041] 11. Horizontal conveyor belt; 12. Feed side inspection unit; 13. Discharge side inspection unit; 14. Light source; 15. Camera; 16. Support frame;

[0042] 17. Connecting assembly; 071. Lifting rod; 072. Rotating shaft;

[0043] 18. Drive components; 081. X-axis drive module; 082. Horn solder drive module; 083. Z-axis drive module;

[0044] 19. Longitudinal conveyor belt; 20. Mounting holes. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] 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.

[0048] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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.

[0049] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no specific meaning.

[0050] In one embodiment of this utility model, such as Figure 1-6As shown, an automatic soldering device for speakers includes: a workbench 1, a feeding station 2, a soldering station 3, a discharging station 4, a return station 5, a transfer station 6, a transmission carrier 7, a positioning block 8, a soldering actuator 9, and an adjustment assembly 10. The workbench 1 is equipped with the feeding station 2, soldering station 3, discharging station 4, return station 5, and transfer station 6. The feeding station 2, soldering station 3, and discharging station 4 are arranged sequentially along the material conveying direction. The return station 5 is connected between the feeding station 2 and the discharging station 4 and is used for the return processing of defective products. The transfer station 6 includes a first transfer station 6 and a second transfer station 6, respectively located at the inlet and outlet ends of the soldering station 3, for buffered material transfer between adjacent stations. The transmission carrier 7 is mounted on the workbench 1 and can carry the speakers and circulate them along each station. Positioning blocks 8 are reciprocally positioned within each workstation relative to the workbench 1. Positioning blocks 8 move to the transport carrier 7 flowing within the corresponding workstation, abutting or releasing the transport carrier 7 to achieve positioning or release of the transport carrier 7. A soldering actuator 9, located within the soldering workstation 3, includes a moving solder head 901 and solder wire 902, used for automatically soldering the positioned speaker. An adjustment assembly 10, including a starting plate 111 and a terminal plate 112, is reciprocally positioned between the return station 5 and the feeding station 2, and between the return station 5 and the discharge station 4, respectively, used to return defective products from the discharge station 4 to the feeding station 2, forming a closed-loop recycling process.

[0051] This utility model provides an automatic soldering device for speakers. By setting up a feeding station 2, a soldering station 3, a discharging station 4, and a return station 5, and combining a transfer station 6 and a transport carrier 7, it achieves material circulation, improving production efficiency and automation. Positioning blocks 8 are reciprocatingly positioned within each station to achieve precise positioning and release of the transport carrier 7, ensuring the stability and accuracy of the soldering process. The soldering actuator 9 automatically solders the positioned speaker components, improving the consistency of soldering quality. The adjustment component 10, through the starting plate 111 and the ending plate 112, achieves intelligent return of defective products, forming a closed-loop processing flow, reducing manual intervention and lowering the defect rate.

[0052] This automatic soldering equipment for speakers also includes multiple transverse conveyor belts 11, which are interconnected. The transverse conveyor belts 11 are used to transport the transport carrier 7, enabling its orderly flow between workstations. The transverse conveyor belts 11 are respectively located at each workstation and the regulating component 10. Each transverse conveyor belt 11 corresponds to a feeding conveyor belt 201, a soldering conveyor belt 301, a discharging conveyor belt 401, a transfer conveyor belt 601, and a return conveyor belt 501 at each workstation. By setting up multiple interconnected transverse conveyor belts 11, each corresponding to a dedicated transport path at each workstation and the regulating component 10, the efficiency and operational stability of the transport carrier 7 between workstations are effectively improved, enhancing the overall automation level and production continuity of the equipment.

[0053] In this embodiment, there is a height difference between the return conveyor belt 501 and the discharge conveyor belt 401 and the feeding conveyor belt 201. The starting plate 111 and the ending plate 112 are vertically and vertically arranged at both ends of the return conveyor belt 501 to facilitate the vertical return of defective products, shorten the return path, form a closed loop of recycling and processing, and effectively improve the recycling efficiency.

[0054] The automatic soldering equipment for speakers also includes a longitudinal conveyor belt 19 connected between the transfer conveyor belt 601 and the worktable 1. The transfer conveyor belt 601 is located at the output end of the longitudinal conveyor belt 19. The longitudinal conveyor belt 19 drives the transfer conveyor belt 601 to move along its extension direction, thereby completing precise docking of the conveyor belts between adjacent workstations, effectively improving material handling efficiency and automation.

[0055] In this embodiment, multiple feeding conveyor belts 201 can be set up to transport multiple speaker components in parallel, thereby improving feeding efficiency. When a certain workstation suspends operation or encounters an abnormality, the remaining feeding conveyor belts 201 can still continue to operate, realizing branched feeding and flexible production, and improving the overall operational stability and capacity of the equipment.

[0056] The automatic soldering equipment for speakers also includes an infeed-side inspection unit 12 and an outfeed-side inspection unit 13, both mounted on the workbench 1. These units are located at the infeed and outfeed ends of the soldering station 3, respectively, between the soldering station 3 and the first transfer station 6, and between the soldering station 3 and the second transfer station 6. The inspection units are used for pre-welding inspection of the speaker components entering the soldering station 3, and for quality inspection of the soldered speaker components. By setting up the infeed-side and outfeed-side inspection units 13, pre-welding image acquisition and post-welding re-inspection functions are achieved, effectively improving the soldering yield and product quality consistency.

[0057] Specifically, both the feed-side inspection unit 12 and the discharge-side inspection unit 13 include a light source 14 and a camera 15, both mounted on the worktable 1, and a bracket 16. The light source 14 and camera 15 are mounted on the bracket 16. The light source 14 and camera 15 are positioned above or on both sides of the transmission path of the transmission carrier 7 and face the horn on the transmission carrier 7, for image acquisition and quality inspection of the horn's appearance, thereby improving the inspection accuracy and reliability before and after welding.

[0058] The automatic soldering equipment for speakers also includes a connecting component 17, which is disposed between the positioning block 8 and the worktable 1. The connecting component 17 drives the positioning block 8 to abut or release the transmission carrier 7, ensuring the stability and continuity of the operation of each workstation.

[0059] Preferably, mounting holes 20 for mounting the connecting component 17 are provided on the worktable.

[0060] Specifically, the connecting assembly 17 includes a lifting rod 071 and a rotating shaft 072. The rotating shaft 072 is disposed on the worktable 1, and one end of the positioning block 8 is rotatably connected to the rotating shaft 072. The lifting rod is movably disposed on the worktable 1 and located below the positioning block 8. In this embodiment, a cylinder can be installed on the worktable 1 to drive the lifting rod to rise and fall, thereby causing the positioning block 8 to tilt or swing back around the rotating shaft 072, realizing the contact or release of the transmission carrier 7, and thus completing the positioning or release operation. By cooperating with the lifting rod and the rotating shaft 072 to drive the positioning block 8 to swing, the precise positioning and release action of the transmission carrier 7 is achieved quickly and stably, effectively improving the production cycle efficiency.

[0061] Preferably, the transmission carrier 7 includes a carrier plate 701 and a mounting slot 702. The carrier plate 701 is provided with a mounting slot 702 for fixing a speaker, and the edge of the mounting slot 702 is provided with a positioning notch. The top of the positioning block 8 can extend into the positioning notch and achieve precise positioning of the transmission carrier 7 by abutting against the side wall of the notch.

[0062] The automatic soldering equipment for speakers also includes a drive assembly 18, which is disposed between the moving solder head 901 and the worktable 1. The drive assembly 18 is used to drive the moving solder head 901 to automatically solder the positioned speaker, so as to achieve high precision and automation in the soldering process and improve soldering efficiency and consistency.

[0063] Preferably, the drive assembly 18 includes an X-axis drive module 081, a horn soldering drive module 082, and a Z-axis drive module 083, which can be constructed using a slide table or a cylinder. The X-axis drive module 081 is mounted on the worktable 1, the horn soldering drive module 082 is mounted on the output end of the X-axis drive module 081, the Z-axis drive module 083 is mounted on the output end of the horn soldering drive module 082, and the moving solder head 901 is located at the output end of the Z-axis drive module 083. The X-axis, horn soldering, and Z-axis drive modules 083 constitute a three-dimensional motion platform, enabling multi-axis linkage of the solder head through the slide table or cylinder, accurately positioning the solder joint, and improving welding efficiency and positional accuracy.

[0064] Preferably, a spool of welding wire 902, a wire feeding motor, and a wire guide tube can be installed on the workbench 1. The welding wire 902 is driven by the wire feeding motor to be fed from the spool through the wire guide tube to the moving solder head 901, so as to realize the continuous and automated supply of welding wire 902, eliminating the need for frequent manual feeding and improving the continuity of welding operations and production efficiency.

[0065] In this embodiment, a protective cover can be installed to protect the speaker during welding.

[0066] The working process of this utility model is as follows: At the feeding station 2, the cylinder drives the lifting rod, which causes the positioning block 8 to tilt around the rotating shaft 072 and extend into the positioning notch to position the transmission carrier 7. The operator puts the horn into the mounting slot 702 of the transmission carrier 7, and then drives the positioning block 8 to swing back, so that the transmission carrier 7 is released from the positioning state. The feeding conveyor belt 201 drives the motor to start, which drives the transmission carrier 7 to move along the preset path and smoothly send it into the first transfer station 6.

[0067] The longitudinal conveyor belt 19 first drives the transfer conveyor belt 601 to move horizontally, precisely docking it with the feeding conveyor belt 201. The carrier 7 carrying the speaker slides from the feeding conveyor belt 201 into the transfer conveyor belt 601 of the first transfer station 6. After the carrier plate 701 has fully entered, the longitudinal conveyor belt 19 starts again, driving the transfer conveyor belt 601 to move along the extension direction and dock with the feeding end of the welding conveyor belt 301 of the welding station 3. The transfer conveyor belt 601 then sends the carrier 7 into the welding station 3.

[0068] When the transport carrier 7 arrives at the feeding end of welding station 3, the cylinder drives the positioning block 8 to tilt around the rotating shaft 072 and extend into the positioning notch to perform secondary positioning of the transport carrier 7. The feeding side inspection unit 12 located at the feeding end of welding station 3 is activated, and the light source 14 and camera 15 acquire images of the pre-welding speaker. After passing the inspection, the positioning block 8 is returned to its original position, and the transport carrier 7 moves to the welding area with the welding conveyor belt 301. At this time, the X, speaker solder and Z direction modules (slide table or cylinder) of the drive assembly 18 are linked to drive the moving solder head 901 to complete the three-dimensional spatial positioning. The welding wire 902 is delivered to the solder head to automatically weld the positioned speaker.

[0069] After welding is completed, positioning block 8 releases the transport carrier 7, allowing it to move with the welding conveyor belt 301 to the discharge end of welding station 3. Positioning block 8 repositions the transport carrier 7, and the light source 14 and camera 15 of the discharge side inspection unit 13 perform quality inspection on the welded speaker. After the inspection is completed, positioning block 8 releases the carrier.

[0070] The longitudinal conveyor belt 19 first drives the transfer conveyor belt 601 to move horizontally, so that it docks with the discharge end of the welding conveyor belt 301. At this time, the transmission carrier 7 carrying the welded horn slides from the welding conveyor belt 301 into the transfer conveyor belt 601 of the second transfer station 6. The longitudinal conveyor belt 19 starts again, driving the transfer conveyor belt 601 to move along the extension direction and dock with the discharge conveyor belt 401. The transfer conveyor belt 601 then sends the transmission carrier 7 into the discharge station 4.

[0071] Qualified products are transported to the discharge conveyor belt 401 and removed, while unqualified products are transported to the terminal plate 112 via the discharge conveyor belt 401. The terminal plate 112 compensates for the height difference through lifting and lowering movements, and completes horizontal docking with the return conveyor belt 501. The transport carrier 7 carrying the unqualified products is sent by the transverse conveyor belt 11 on the terminal plate 112 into the return conveyor belt 501 of the return station 5. Finally, the liftable starting plate 111 docks with the return conveyor belt 501, and the transport carrier 7, along with the unqualified products, is sent back to the feeding conveyor belt 201 of the feeding station 2 via the transverse conveyor belt 11 on the starting plate 111. After being repositioned by the positioning block 8, a new round of welding process begins, forming a closed loop for the recycling and processing of unqualified products, realizing material recycling and automated production.

[0072] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. An automatic soldering device for speakers, characterized in that, include: The workbench is equipped with a feeding station, a welding station, a discharging station, a return station, and a transfer station. The feeding station, welding station, and discharging station are arranged sequentially along the material conveying direction. The return station is connected between the feeding station and the discharging station and is used for the return processing of defective products. The transfer station includes a first transfer station and a second transfer station, which are respectively located at the inlet and outlet ends of the welding station. Used to enable buffered transfer of materials between adjacent workstations; A transmission carrier is set on the workbench, and the transmission carrier can carry a loudspeaker and circulate along each work station. The positioning block is reciprocally disposed in each workstation relative to the worktable. The positioning block moves to the transmission carrier flowing in the corresponding workstation and abuts or releases the transmission carrier to realize the positioning or release of the transmission carrier. The soldering actuator, located in the welding station, includes a moving solder head and solder wire, and is used to automatically solder the positioned speaker. The adjustment assembly, including a starting plate and a terminal plate, is reciprocally disposed between the return station and the feeding station, and between the return station and the discharge station, respectively, for returning defective products from the discharge station to the feeding station, forming a closed loop for recycling.

2. The automatic soldering equipment for speakers according to claim 1, characterized in that, It also includes transverse conveyor belts, of which there are multiple transverse conveyor belts that are interconnected. The transverse conveyor belts are used to carry the transport carrier, so that the transport carrier flows in an orderly manner between each workstation. The transverse conveyor belts are respectively set at each workstation and the adjustment component. Each transverse conveyor belt at each workstation corresponds to a feeding conveyor belt, a welding conveyor belt, a discharging conveyor belt, a transfer conveyor belt, and a return conveyor belt.

3. An automatic soldering device for a loudspeaker according to claim 2, characterized in that, It also includes a longitudinal conveyor belt connected between the transfer conveyor belt and the workbench. The transfer conveyor belt is located at the output end of the longitudinal conveyor belt. The longitudinal conveyor belt is used to drive the transfer conveyor belt to move along its extension direction, thereby completing the transfer docking between conveyor belts between adjacent workstations.

4. An automatic soldering device for a loudspeaker according to claim 2 or 3, characterized in that, There is a height difference between the return conveyor belt and the discharge and feeding conveyor belts. The starting plate and the ending plate are vertically mounted at both ends of the return conveyor belt to facilitate the vertical return of defective products, thereby forming a closed loop for recycling.

5. An automatic soldering device for a loudspeaker according to any one of claims 1-3, characterized in that, It also includes a connecting component disposed between the positioning block and the worktable, the connecting component being used to drive the positioning block to abut or release against the transmission carrier.

6. An automatic soldering device for a loudspeaker according to claim 5, characterized in that, The connecting assembly includes a lifting rod and a rotating shaft. The rotating shaft is disposed on the worktable. One end of the positioning block is rotatably connected to the rotating shaft. The lifting rod is movable on the worktable and located below the positioning block. The lifting rod moves up and down to drive the positioning block to tilt or swing back around the rotating shaft, so as to realize that the positioning block abuts against or releases the transmission carrier.

7. An automatic soldering device for a loudspeaker according to any one of claims 1-3 or 6, characterized in that, It also includes a feed-side inspection unit and a discharge-side inspection unit, both of which are set on the workbench and are respectively arranged at the feed end and discharge end of the welding station, that is, between the welding station and the first transfer station and between the welding station and the second transfer station; the feed-side inspection unit and the discharge-side inspection unit are used to perform pre-inspection on the horn assembly that is about to enter the welding station and to perform quality inspection on the horn assembly after welding.

8. An automatic soldering device for a loudspeaker according to claim 7, characterized in that, Both the feed-side inspection unit and the discharge-side inspection unit include a light source and a camera, which are both installed on the worktable. The light source and camera are positioned above or on both sides of the transmission path of the transmission carrier and are directed toward the speaker on the transmission carrier, for image acquisition and quality inspection of the speaker's appearance.

9. An automatic soldering device for a loudspeaker according to any one of claims 1-3, 6, or 8, characterized in that, It also includes a drive component, which is disposed between the moving solder head and the worktable. The drive component is used to drive the moving solder head to automatically solder the positioned speaker.

10. An automatic soldering device for a loudspeaker according to claim 9, characterized in that, The drive assembly includes an X-axis drive module, a horn soldering drive module, and a Z-axis drive module. The X-axis drive module is mounted on the worktable, the horn soldering drive module is mounted at the output end of the X-axis drive module, the Z-axis drive module is mounted at the output end of the horn soldering drive module, and the moving soldering head is located at the output end of the Z-axis drive module.

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