Loudspeaker automatic assembly production line

Abstract

The loudspeaker automatic assembly production line comprises a bearing jig, the top of the bearing jig is provided with four positioning grooves which are arranged in a square shape, the bearing jig is internally provided with a mounting cavity and a mounting groove, the mounting cavity is located among the four positioning grooves, and the inner circumferential wall of the mounting cavity is provided with four limiting holes; the four limiting holes communicate with the four positioning grooves correspondingly, lock beads are installed in the limiting holes, a rotary disc is installed in the installation cavity, receding grooves corresponding to the lock beads are formed in the peripheral wall of the rotary disc, the side walls of the receding grooves can push the lock beads to move, a lock rod is installed in the installation groove and drives the rotary disc to rotate through a transmission structure, and an unlocking piece is rotationally installed in the installation groove. The unlocking piece is provided with a clamping block, the side portion of the lock rod is provided with a step portion used for being connected with the clamping block in a clamped mode, and the lock rod and the unlocking piece are connected with reset springs respectively. According to the automatic assembly production line for the loudspeakers, the loudspeaker bottom shells arranged on the bearing jigs are locked through a pure mechanical structure, and the accuracy of the whole assembly process is ensured.

Description

Technical Field

[0001] This invention relates to an automated assembly line for loudspeakers. Background Technology

[0002] With the popularization of automation technology, loudspeaker production is gradually being completed using automated assembly lines to improve production efficiency and product consistency. Existing automated loudspeaker assembly lines typically include an assembly conveyor belt, multiple load-bearing fixtures set on the assembly conveyor belt, and dispensing stations, panel pressing stations, and screw fastening stations arranged sequentially along the assembly conveyor belt.

[0003] In existing technology, operators first place the speaker housing onto a support fixture, which moves with the assembly conveyor belt, sequentially passing through each station to complete the assembly. However, existing support fixtures are relatively simple in function, typically only having simple positioning grooves or blocks for initial horizontal positioning of the speaker housing. This structure has a significant drawback: during the start-stop, acceleration, or deceleration of the assembly conveyor belt, and when subjected to external forces during processes such as gluing, panel pressing, and screw fastening, the speaker housing is prone to wobbling or rotating on the support fixture. This wobbling and rotation can lead to inaccurate gluing positions, misalignment between the panel and the housing, and misalignment of screw fastening holes, seriously affecting the assembly accuracy and product quality of the speaker, and may even result in product scrap. Therefore, a corresponding technical solution needs to be designed to address these problems. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, the present invention provides an automated loudspeaker assembly production line to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution of the present invention is to design an automated speaker assembly production line, including a conveying device, and a loading station, a dispensing station, a panel pressing station, a screw fastening station, and a unloading station arranged sequentially along the conveying path of the conveying device; the conveying device includes an assembly conveyor belt and multiple carrying fixtures arranged on the assembly conveyor belt. The top of the support fixture is provided with four positioning slots arranged in a square. The positioning slots are circular and are used to place the speaker base. The outer peripheral wall of the speaker base is provided with protrusions and grooves. The side wall of the positioning slot is provided with positioning notches for the protrusions to be inserted. The mounting fixture has an internal mounting cavity and mounting slots. The mounting cavity is circular and located between four positioning slots. Four limiting holes are provided on the inner circumferential wall of the mounting cavity, each communicating with one of the four positioning slots. A locking ball is installed in each of the four limiting holes and can move within them. A turntable is rotatably mounted in the mounting cavity. Four clearance grooves, corresponding one-to-one with the locking balls, are provided on the outer circumferential wall of the turntable. The sidewalls of the clearance grooves can push the locking balls, causing them to protrude from the limiting holes and engage with the speaker housing. The mounting groove has one end connected to the mounting cavity, and a locking rod is slidably mounted in the mounting groove. The locking rod drives the turntable to rotate through a transmission structure. The locking rod is connected to a first return spring, and one end of the locking rod extends to the outside of the bearing fixture and is provided with a locking button. An unlocking component located on one side of the locking rod is rotatably mounted in the mounting groove. The unlocking component is connected to a second return spring, and one end of the unlocking component extends to the outside of the bearing fixture and is provided with an unlocking paddle. The unlocking component is also provided with a locking block. The side of the locking rod is provided with a stepped portion for engaging with the locking block.

[0006] Preferably, the transmission structure includes a gear and a rack, the gear is located at the bottom center of the turntable, the rack is located on the side of the locking rod, and the rack extends into the mounting cavity and meshes with the gear.

[0007] Preferably, the sidewall of the clearance groove has an inclined structure.

[0008] Preferably, the side wall of the mounting groove is provided with a sliding groove, the side of the locking rod is provided with a slider that is slidably connected to the sliding groove, the first return spring is disposed in the sliding groove, and the two ends of the first return spring are fixedly connected to the slider and the end wall of the sliding groove, respectively.

[0009] Preferably, the two ends of the second reset spring are fixedly connected to the unlocking component and the side wall of the mounting groove, respectively.

[0010] Preferably, the turntable is rotatably connected to the top wall of the mounting cavity via a rotating shaft, and the unlocking component is rotatably connected to the bottom of the mounting groove via a shaft pin.

[0011] Preferably, the plurality of load-bearing fixtures are arranged at equal intervals along the length of the assembly conveyor belt.

[0012] The advantages and beneficial effects of this invention are as follows: It provides an automated assembly line for loudspeakers with a reasonable structure that can use a purely mechanical structure to lock the speaker base shell placed on the support fixture, effectively preventing it from shaking and rotating during transportation and assembly, thereby ensuring the accuracy of the entire assembly process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the support fixture in this invention.

[0014] Figure 2 yes Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 yes Figure 1 Enlarged view of point B in the middle.

[0016] Figure 4 This is a schematic diagram of the internal structure of the support fixture in this invention.

[0017] Figure 5 yes Figure 4 Enlarged view of point C in the middle.

[0018] Figure 6 yes Figure 4 Enlarged view of point D in the middle.

[0019] Figure 7 yes Figure 4 Enlarged view of point E in the middle. Detailed Implementation

[0020] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0021] The specific technical solution of this invention is as follows: In one specific embodiment, such as Figures 1 to 6 As shown, an automated speaker assembly production line includes a conveying device and a loading station, a dispensing station, a panel pressing station, a screw fastening station, and a unloading station arranged sequentially along the conveying path of the conveying device; the conveying device includes an assembly conveyor belt and a plurality of carrying fixtures 1 disposed on the assembly conveyor belt. The top of the support fixture 1 is provided with four positioning grooves 2 arranged in a square. The positioning grooves 2 are circular and are used to place the speaker base shell 100. The outer peripheral wall of the speaker base shell 100 is provided with a protrusion 101 and a groove 102. The protrusion 101 and the groove 102 are both structures that are built into the speaker base shell 100. The side wall of the positioning groove 2 is provided with a positioning notch 3 for the protrusion 101 to be inserted. The supporting fixture 1 has an internal mounting cavity 4 and a mounting groove 5. The mounting cavity 4 is circular and located between four positioning grooves 2. The inner peripheral wall of the mounting cavity 4 has four limiting holes 6, which are connected to the four positioning grooves 2. Each of the four limiting holes 6 has a locking bead 7 installed in one of the limiting holes 6, allowing the locking bead 7 to move within the limiting hole 6. A turntable 8 is rotatably mounted in the mounting cavity 4. The outer peripheral wall of the turntable 8 has four clearance grooves 9 corresponding to the locking beads 7. The sidewalls of the clearance grooves 9 can push the locking beads 7 to move, causing a portion of the locking bead 7 to protrude from the limiting hole 6 and engage with the groove 102 of the speaker base shell 100. One end of the mounting groove 5 is connected to the mounting cavity 4, and a locking rod 10 is slidably installed in the mounting groove 5. The locking rod 10 drives the turntable 8 to rotate through the transmission structure. The locking rod 10 is connected to a first return spring 11, and one end of the locking rod 10 extends to the outside of the bearing fixture 1 and is provided with a locking button 12. An unlocking member 13 located on one side of the locking rod 10 is rotatably installed in the mounting groove 5. The unlocking member 13 is connected to a second return spring 14. One end of the unlocking member 13 extends to the outside of the bearing fixture 1 and is provided with an unlocking paddle 15. The unlocking member 13 is provided with a locking block 16. The side of the locking rod 10 is provided with a stepped portion 17 for engaging with the locking block 16.

[0022] The working principle of the automated loudspeaker assembly production line of the present invention, adopting the above scheme, is as follows: When the support fixture 1 is located at the loading station, the support fixture 1 is in the unlocked state. The locking block 16 of the unlocking component 13 abuts against the side of the step portion 17, the second return spring 14 is in a compressed state, and the locking bead 7 protrudes from one side of the limiting hole 6 and is located in the corresponding clearance groove 9 on the turntable 8. At this time, the four speaker base shells 100 can be placed into the four positioning grooves 2 of the support fixture 1 by a robot or manually, and the protrusions 101 of each speaker base shell 100 are embedded in the positioning notches 3 to achieve the initial positioning of the speaker base shells 100. After the speaker base shells 100 are placed, the operator presses the locking button 12, which causes the locking button 12 to drive the locking rod 10 to slide toward the mounting cavity 4 and compress the first return spring 11. During the sliding process, the locking rod 10 drives the turntable 8 to rotate counterclockwise through the transmission structure, so that the turntable 8 The corresponding locking bead 7 is pushed to move by the side wall of the clearance groove 9 until the locking bead 7 is dislodged from the clearance groove 9. At this time, the locking bead 7 will partially protrude from the other side of the limiting hole 6 and be inserted into the groove 102 of the speaker base 100. The outer peripheral wall of the turntable 8 will block the locking bead 7 to prevent it from moving backward. The locking bead 7 will lock and fix the speaker base 100 to prevent it from shaking and rotating during transportation and assembly. When the locking rod 10 slides into place, the locking block 16 of the unlocking member 13 will disengage from the side of the step 17. At this time, the unlocking member 13 will rotate counterclockwise under the elastic restoring force of the second return spring 14, so that the locking block 16 is engaged with the step 17. After that, the operator can release the locking button 12. The locking rod 10 will be held in the current position by the engagement of the step 17 and the locking block 16. At this time, the carrying fixture 1 is in the locked state. When the support fixture 1 passes through the loading station, dispensing station, panel pressing station and screw fastening station in sequence and arrives at the unloading station, the worker moves the unlocking block 15, causing the unlocking component 13 to drive the locking block 16 to rotate clockwise and disengage from the step part 17. At this time, the locking rod 10 will move away from the mounting cavity 4 under the elastic restoring force of the first return spring 11. During the sliding process of the locking rod 10, the transmission structure drives the turntable 8 to rotate clockwise to release the obstruction of the locking ball 7 by the outer peripheral wall of the turntable 8, so that the locking ball can be moved into the corresponding clearance groove 9 on the turntable 8. At this time, the assembled speaker can be removed from the support fixture 1 by a robot or manually.

[0023] In another specific embodiment, such as Figures 4 to 7 As shown, the transmission structure includes a gear and a rack 18. The gear is located at the bottom center of the turntable 8, and the rack 18 is located on the side of the locking rod 10. The rack 18 extends into the mounting cavity 4 and meshes with the gear.

[0024] The above scheme is adopted: when the locking rod 10 slides toward the mounting cavity 4, the locking rod 10 drives the turntable 8 to rotate counterclockwise through the meshing of the rack 18 and the gear; when the locking rod 10 slides away from the mounting cavity 4, the locking rod 10 drives the turntable 8 to rotate clockwise through the meshing of the rack 18 and the gear.

[0025] In another specific embodiment, such as Figures 4 to 5 As shown, the sidewall of the clearance groove 9 is a sloping structure 19.

[0026] The above solution is adopted: by setting the side wall of the clearance groove 9 as a slope structure 19, the side wall of the clearance groove 9 can push the lock ball 7 to move more smoothly.

[0027] In another specific embodiment, such as Figures 4 to 6 As shown, the mounting groove 5 has a sliding groove 20 on its side wall, and the locking rod 10 has a slider 21 that is slidably connected to the sliding groove 20 on its side. The first return spring 11 is disposed in the sliding groove 20, and the two ends of the first return spring 11 are fixedly connected to the slider 21 and the end wall of the sliding groove 20, respectively.

[0028] In another specific embodiment, such as Figures 4 to 6 As shown, the two ends of the second reset spring 14 are fixedly connected to the unlocking member 13 and the side wall of the mounting groove 5, respectively.

[0029] In another specific embodiment, such as Figures 4 to 6 As shown, the turntable 8 is rotatably connected to the top wall of the mounting cavity 4 via a rotating shaft 22, and the unlocking component 13 is rotatably connected to the bottom of the mounting groove 5 via a shaft pin 23.

[0030] In another specific embodiment, the plurality of carrying fixtures 1 are arranged at equal intervals along the length of the assembly conveyor belt.

[0031] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An automated speaker assembly production line, comprising a conveying device, and a loading station, a dispensing station, a panel pressing station, a screw fastening station, and a unloading station arranged sequentially along the conveying path of the conveying device; the conveying device comprising an assembly conveyor belt and a plurality of carrying fixtures disposed on the assembly conveyor belt, characterized in that: The top of the support fixture is provided with four positioning slots arranged in a square. The positioning slots are circular and are used to place the speaker base. The outer peripheral wall of the speaker base is provided with protrusions and grooves. The side wall of the positioning slot is provided with positioning notches for the protrusions to be inserted. The mounting fixture has an internal mounting cavity and mounting slots. The mounting cavity is circular and located between four positioning slots. Four limiting holes are provided on the inner circumferential wall of the mounting cavity, each communicating with one of the four positioning slots. A locking ball is installed in each of the four limiting holes and can move within them. A turntable is rotatably mounted in the mounting cavity. Four clearance grooves, corresponding one-to-one with the locking balls, are provided on the outer circumferential wall of the turntable. The sidewalls of the clearance grooves can push the locking balls, causing them to protrude from the limiting holes and engage with the speaker housing. The mounting groove has one end connected to the mounting cavity, and a locking rod is slidably mounted in the mounting groove. The locking rod drives the turntable to rotate through a transmission structure. The locking rod is connected to a first return spring, and one end of the locking rod extends to the outside of the bearing fixture and is provided with a locking button. An unlocking component located on one side of the locking rod is rotatably mounted in the mounting groove. The unlocking component is connected to a second return spring, and one end of the unlocking component extends to the outside of the bearing fixture and is provided with an unlocking paddle. The unlocking component is also provided with a locking block. The side of the locking rod is provided with a stepped portion for engaging with the locking block.

2. The automated speaker assembly production line according to claim 1, characterized in that, The transmission structure includes a gear and a rack. The gear is located at the bottom center of the turntable, and the rack is located on the side of the locking rod, extending into the mounting cavity and meshing with the gear.

3. The automated speaker assembly production line according to claim 1, characterized in that, The sidewall of the clearance groove has an inclined structure.

4. The automated speaker assembly production line according to claim 1, characterized in that, The mounting groove has a sliding groove on its side wall, and the locking rod has a slider that is slidably connected to the sliding groove on its side. The first return spring is disposed in the sliding groove, and the two ends of the first return spring are fixedly connected to the slider and the end wall of the sliding groove, respectively.

5. The automated speaker assembly production line according to claim 1, characterized in that, The two ends of the second reset spring are fixedly connected to the unlocking component and the side wall of the mounting groove, respectively.

6. The automated speaker assembly production line according to claim 1, characterized in that, The turntable is rotatably connected to the top wall of the mounting cavity via a rotating shaft, and the unlocking component is rotatably connected to the bottom of the mounting groove via a shaft pin.

7. The automated speaker assembly production line according to claim 1, characterized in that, The multiple load-bearing fixtures are arranged at equal intervals along the length of the assembly conveyor belt.

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