An earphone acoustic assembly automatic processing and assembling device

Abstract

The application relates to the technical field of earphone accessory, and provides an earphone acoustic component automatic processing and assembling equipment, which comprises a chassis, the center of the chassis is rotationally connected with a rotating disc, a plurality of combined frames matched with earphone acoustic component assembling are equidistantly arranged around the periphery of the rotating disc to serve as the area for earphone acoustic component assembling, the inside of the combined frame is connected with an ejection disc through a jacking assembly to jack up the materials in the combined frame to a certain height to match the gluing and blanking of the earphone acoustic component. Through the rotating disc type multi-station continuous operation design, full-automatic assembly line production of the earphone acoustic component from material taking, gluing, assembling to compacting and blanking is realized, the materials sequentially pass through various processing stations, the production efficiency is greatly improved, manual intervention is reduced, the labor intensity and the labor cost are reduced, meanwhile, the uncertainty factors caused by manual operation are avoided, and the stability of the production process is obviously improved.

Description

Technical Field

[0001] This invention relates to the field of headphone accessories technology, specifically to an automated processing and assembly equipment for headphone acoustic components. Background Technology

[0002] The acoustic components of headphones are the core system that converts electrical signals into sound. They mainly include key components such as the driver unit (dynamic, balanced armature, planar or electrostatic), diaphragm, voice coil, magnetic circuit system, and acoustic cavity. These components work together to determine the sound quality of the headphones. In addition, there are structures such as crossovers, damping materials, and sound ducts, which are used to optimize the frequency response curve, control the sound wave propagation path, and ultimately achieve high-fidelity sound reproduction.

[0003] The assembly of headphone acoustic components primarily relies on manual operation or semi-automated equipment. In manual assembly, operators must manually align the voice coil and diaphragm, apply adhesive, and press them together. This is not only labor-intensive but also makes it difficult to ensure uniform adhesive application and consistent pressing force, resulting in low product yield and limited production efficiency. Existing semi-automated equipment often suffers from poor workstation coordination, independent driving of each functional module leading to bulky equipment and high energy consumption. Furthermore, it struggles to achieve precise synchronization of processes such as material handling, adhesive application, assembly, compaction, and unloading, affecting the stability of assembly quality. Therefore, an automated processing and assembly equipment for headphone acoustic components is needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an automated processing and assembly equipment for headphone acoustic components. It solves the problems of poor workstation connections, independent driving of each functional module leading to large equipment size and high energy consumption in existing semi-automated equipment, and the difficulty in achieving precise synchronization of processes such as material picking, gluing, assembly, compaction, and unloading, which affects the stability of assembly quality.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An automated processing and assembly equipment for headphone acoustic components includes: The base frame has a turntable rotatably connected to its center. Multiple combination frames for assembling headphone acoustic components are equidistantly arranged around the outer periphery of the turntable, serving as the assembly area for the headphone acoustic components. The interior of each combination frame is connected to an ejector plate via a lifting component to lift the material inside the combination frame to a certain height, in order to facilitate the gluing and unloading of the headphone acoustic components. The side frame consists of two parts, which are fixedly connected to the left and right sides of the base frame, respectively. The top of the side frame is equipped with a discharge assembly, which works with the material handling unit at the bottom of the side frame to pick up the materials. The accessories of the headphone acoustic components are taken out from the discharge port of the discharge assembly and placed on the assembly frame for assembly. The material handling assembly is connected to a pneumatic power unit through a connecting air pipe to cooperate with the material handling unit to clamp and unload the materials after they are picked up. A power shaft is rotatably connected to the bottom end of the base frame. The power shaft is connected to a motor, which serves as a power source, via two meshing bevel gears. The middle end of the power shaft is connected to the bottom side of the turntable via a gear set. Both ends of the power shaft are connected to lifting frames via power components. The inner wall of the lifting frame slides perpendicularly to the side frame. One side of one end of the lifting frame is connected to the material handling unit, and the other side of one end of the lifting frame is connected to the pneumatic power unit. A suspended frame, the top of which is fixedly connected to one of the two side frames on the same side, a dispensing assembly is installed at one bottom end of the suspended frame, a pusher assembly is installed at the other bottom end of the suspended frame, a synchronization assembly is installed at the top of the pusher assembly, a worm gear is installed at the bottom of the synchronization assembly, and the worm gear is connected to the drive shaft of the dispensing assembly via a timing belt and timing pulley. The pressing head is used to compact two bonded headphone acoustic component parts to improve the bonding strength. The outer wall of the pressing head is fixedly connected to a synchronous pressing frame. One end of the synchronous pressing frame is connected to a synchronous component, and the other end of the synchronous pressing frame is pressed down by a descending material handling unit, triggering the pressing head to move downward. The pressing head slides vertically to the bottom of the suspension frame through a spring.

[0006] Preferably, the material handling unit includes a rotating frame rotatably connected to one side of the lifting frame. A traction head is fixedly connected to one end of the rotating frame, and the traction head rolls against a traction groove opened on the outer wall of the side frame. A material handling head is fixedly connected to the other end of the rotating frame. A material handling cavity is opened inside the material handling head. Clamping frames are horizontally sliding on both sides of the inner outer periphery of the material handling head via springs. An inflatable air bladder is installed at the top of the clamping frame. The output end of the connecting air pipe is connected to two inflatable air bladders through a branch pipe.

[0007] Preferably, the pneumatic assembly includes a slide rail fixedly connected to one end of the lifting frame and a guide plate fixed to one side of the side frame. One side of the slide rail slides perpendicularly to the side frame, and the other side of the slide rail has a guide head that slides horizontally. The guide head slides against a guide groove opened on the outer wall of the guide plate. The path of the guide groove is a closed path, and two one-way limiting heads are rotatably connected inside the guide groove to keep the movement trajectory of the guide head unidirectional. A gas piston cylinder is installed on the top side of the slide rail. The pushing part of the gas piston cylinder is connected to the guide head through a connecting rod. The output end of the gas piston cylinder is connected to the input end of the connecting air pipe.

[0008] Preferably, the discharge assembly includes a discharge port fixedly connected to the top side of the side frame. The discharge port is internally connected, and the bottom end of the port is connected to multiple limiting contacts via springs. The end contours of the limiting contacts are arc-shaped. The top end of the discharge port is fixedly connected to a storage frame for storing materials. A pusher plate slides horizontally inside the storage frame via springs.

[0009] Preferably, the lifting assembly includes a guide ring located on the bottom side of the turntable and a plurality of lifting rods that slide vertically on the bottom side of the turntable. The top side of the lifting rod is fixedly connected to the ejector plate, the bottom side of the guide ring is fixedly connected to the base frame, the bottom end of the lifting rod abuts against the top side of the guide ring, and the top side of the guide ring is provided with two protrusions of different heights.

[0010] Preferably, the gear set includes an incomplete gear, the bottom side of which is connected to the drive shaft via two meshing bevel gears, and a drive gear is fixedly connected to the center bottom side of the turntable, the drive gear being located on one side of the incomplete gear.

[0011] Preferably, the power assembly includes a power arm rotatably connected to the bottom end of the side frame. One end of the power arm is connected to the other end of the lifting frame via a connecting rod. The other end of the power arm is connected to the power shaft via a synchronous pulley and a synchronous belt, where the driving gear and the driven gear are of different sizes.

[0012] Preferably, the dispensing assembly includes a cylinder fixedly connected to one end of the bottom side of the suspended frame, a drive shaft rotatably connected to the center of the cylinder, and the bottom end of the drive shaft penetrates the bottom side of the cylinder and is fixedly connected to a smearing plate. A traction ring slides vertically along the inner outer circumference of the cylinder via a spring. The inner circumference of the traction ring is connected to a traction groove opened on the outer wall of the drive shaft via a traction protrusion. An infusion piston cylinder is installed on the bottom side of the traction ring. The pushing part on the bottom side of the infusion piston cylinder is fixedly connected to the cylinder. The input end of the infusion piston cylinder is connected to a glue storage tank for storing glue via a hose. The output end of the infusion piston cylinder is connected to a glue outlet via a hose. The glue outlet is fixedly connected to the bottom outer circumference of the cylinder.

[0013] Preferably, the pusher unit includes a worm gear rotatably connected to the other end of the bottom side of the suspended frame, the top side of the worm wheel being rotatably connected to the suspended frame, the worm wheel meshing with the worm gear, toothed rollers being fixedly connected to both sides of the worm gear, driven gears being meshed on both the front and rear sides of the toothed rollers, and a pusher frame being provided at the other end of the bottom side of the suspended frame, with the top two sides of the pusher frame being rotatably connected to the outer periphery of the driven gears.

[0014] Preferably, the synchronization component includes a connecting frame that slides vertically to the bottom of the other end of the suspension frame. One side of the connecting frame is fixedly connected to one end of the synchronous pressing frame. Both ends of the other side of the connecting frame are connected to racks via connecting rods. The racks slide horizontally with the suspension frame via tension springs. The outer periphery of the two toothed rollers on opposite sides is rotatably connected to toothed rings. The inner periphery of the toothed rings is provided with ratchet teeth. The inner periphery of the two toothed rollers on opposite sides is connected to pawls via torsion springs.

[0015] Working principle: When assembling the acoustic components of the headphones, the motor drives the power shaft to rotate through two meshing bevel gears. The power shaft drives the drive gear to rotate through the synchronous belt and synchronous pulley. The drive gear, through the two meshing bevel gears, drives the incomplete gear, which meshes intermittently with the power gear fixed on the bottom side of the turntable. The rotating drive gear meshes with the driven gear connected to the power arm, which in turn causes the power arm to pull the connecting rod to move. This causes the connecting rod to drive the lifting frame to reciprocate up and down, thereby causing the structure connected to the lifting frame to move as well. Driven by the lifting frame, the rotating frame connected to the lifting frame is lifted, causing the structure connected to it, including the material-receiving head, to shift. The traction head shifts along the traction groove on the side frame, causing the rotating frame connected to it to rotate during the shift. When it reaches the top, the material-receiving head rotates 180°, so that the opening of the material-receiving head's receiving cavity faces upward and is inserted into the discharge port. The arc-shaped structure at the edge of the opening of the material-receiving head's receiving cavity abuts against the arc-shaped end of the limiting contact inside the discharge port, causing the force-bearing limiting contact to retract into the discharge port, allowing the material to be discharged. The material inside the inlet falls into the material receiving cavity of the feeding head. Then, the rotating frame moves downward with the lifting frame, causing the feeding head to detach from the feeding inlet. During the detachment process, the arc-shaped end of the limiting contact gradually resets under the action of the spring along the arc-shaped structure of the edge of the feeding head's material receiving cavity opening. The structure of the arc-shaped end of the limiting contact inserts into the gap between the material and the feeding head through a curve, causing the material that has not entered the material receiving cavity to be separated. The limiting contact continues to restrict the material. Then, the feeding head moves and rotates with the rotating frame to reset and is inserted into the combination frame directly below it, completing the feeding process. Driven by the lifting frame, the slide rail connected to the lifting frame is lifted and moves together with the guide head on its outer wall. The moving guide head moves in the guide groove on the guide plate until it reaches the top of the guide groove with the slide rail and pushes open the one-way limit head at the top. When the lifting frame descends, the guide head moves horizontally with the slope of the guide groove. At this time, the material picking head is in the process of picking up the material. At this time, the horizontally moving guide head drives the second connecting rod to move, causing the second connecting rod to push the air piston cylinder. The air in the air piston cylinder enters the expansion air bag through the connecting air pipe, thereby causing the expansion air bag to expand. The expanded expansion air bag touches the clamping frame to move, causing the clamping frame to clamp the picked material, so that the material will not fall off after the picking head flips. When the picking head is inserted into the combination frame directly below it, the guide head reaches the second slope and resets along the slope, thereby drawing back the air in the air piston cylinder, contacting the clamping frame, and causing the material in the picking head's receiving cavity to fall into the combination frame. During the process of the lifting frame being raised by the connecting rod, the missing part on the incomplete gear is left unattended, allowing the meshing area to mesh with the power gear, thereby causing the turntable to rotate. The rotating turntable causes the assembly frame containing the material to move, guiding the material in the assembly frame to the next station. The material sequentially reaches the first unloading station, the gluing station, the second unloading station, the compaction station, and the unloading station. Directly below the area corresponding to the gluing station and the unloading station, the structure on the auxiliary guide ring is a raised structure. When the lifting rod, which follows the displacement of the turntable, reaches this point, it causes the ejector plate on its top side to be raised as well. The gluing station advances the material surface and the sizing plate, but does not exceed the height of the edge of the assembly frame, and continues to be limited by the assembly frame. The unloading station causes the lifting rod to drive the ejector plate on its top side to eject the assembled material out of the assembly frame. At the compaction station, the synchronous pressing frame follows the pressing of one of the rotating frames and moves downward in sync, causing the pressing head connected to it to press down on the material on its bottom side in sync, thus compacting the material that has been bonded with glue and improving the firmness of the assembly. The connecting frame, which moves downward along the synchronous pressing frame, pushes the rack through the connecting rod three, causing the rack to mesh with the toothed ring on the toothed roller, causing the toothed ring to rotate forward. This causes the ratchet on the toothed ring to abut against the pawl, causing the pawl to rotate forward. The forward rotation is limited, thus the force on the toothed ring is transmitted to the toothed roller, causing the toothed roller and the worm to rotate synchronously. The rotating toothed roller meshes with the driven gears on both sides, causing the two cylinders to pull the pusher frame connected to them to move along the connection point. The movement curve of the pusher frame pushes the material ejected from the unloading station out of the area of ​​the assembly frame, allowing it to slide into the unloading frame along the slope at the rear end of the base frame. The rotating worm gear meshes with the worm wheel, causing the worm wheel to drive the drive shaft to rotate via the synchronous belt and synchronous pulley. The rotating drive shaft drives the smear plate at the bottom to rotate, and through the traction groove on the outer wall, it drives the traction ring to move up and down on one side, discharging glue to the glue outlet. The glue drips from the glue outlet onto the material surface on the bottom side, and then the infusion piston cylinder draws glue from the glue storage tank. During this process, the position of the smear plate and the glue outlet do not coincide. The rotating smear plate then scrapes the glue, making the glue spread evenly on the smear plate.

[0016] This invention provides an automated processing and assembly device for headphone acoustic components. It has the following advantages: 1. This invention, through a rotary multi-station continuous operation design, realizes fully automated production line production of headphone acoustic components from material picking, gluing, assembly to compaction and unloading. This allows materials to pass through each processing station sequentially, greatly improving production efficiency, reducing manual intervention, lowering labor intensity and labor costs, while avoiding the uncertainties brought about by manual operation and significantly improving the stability of the production process.

[0017] 2. This invention effectively improves the assembly precision of the headphone acoustic components. It achieves precise rotation positioning through the rolling cooperation between the traction head and the traction groove, ensuring that the material picker can accurately insert into the feeding port to complete the material picking. Through the specific contour design of the guide ring, the material height is precisely raised at a specific work station, ensuring the precise alignment of the gluing and pressing processes.

[0018] 3. This invention achieves uniform and quantitative glue application, spreading the glue evenly on the material surface, avoiding common problems such as uneven glue amount, glue overflow or insufficient glue when applying glue manually, and ensuring the reliability of the bonding between the voice coil and the diaphragm and the consistency of acoustic performance.

[0019] 4. This invention can accurately clamp and release materials. By controlling the inflation and deflation of the expansion bladder in coordination with the rhythm of material picking and unloading, the acoustic components can firmly clamp the materials when picking them up and automatically release them when unloading, thus ensuring the stability of material picking and unloading. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the side frame structure of the present invention; Figure 3 This is a schematic diagram of the structure of the connecting rod of the present invention; Figure 4 This is a schematic diagram of the rotating frame of the present invention; Figure 5 This is a schematic diagram of the structure of the guide plate of the present invention; Figure 6 This is a schematic diagram of the internal structure of the material handling head of the present invention; Figure 7 This is a schematic diagram of the structure of the limiting contact of the present invention; Figure 8 This is a schematic diagram of the structure of the storage frame of the present invention; Figure 9 This is a schematic diagram of the structure of the turntable of the present invention; Figure 10 This is a schematic diagram of the connection structure of the power shaft of the present invention; Figure 11 This is a schematic diagram of the lifting rod of the present invention; Figure 12 This is a schematic diagram of the bottom structure of the suspension frame of the present invention; Figure 13 This is a schematic diagram showing the position of the cylinder body of the present invention; Figure 14 This is a schematic diagram of the internal structure of the cylinder of the present invention; Figure 15 This is a schematic diagram of the transmission shaft of the present invention; Figure 16 This is a schematic diagram of the connection structure of the second connecting rod of the present invention; Figure 17 This is a schematic diagram of the worm gear connection structure of the present invention; Figure 18 This is a schematic diagram of the worm gear connection structure of the present invention; Figure 19 This is a schematic diagram of the structure of the pressure head of the present invention.

[0021] The components include: 1. Base frame; 2. Side frame; 3. Turntable; 4. Lifting frame; 5. Linkage 1; 6. Power arm; 7. Rotating frame; 8. Traction head; 9. Material handling head; 10. Guide plate; 11. One-way limit head; 12. Slide rail; 13. Guide head; 14. Linkage 2; 15. Air piston cylinder; 16. Connecting air pipe; 17. Inflatable air bladder; 18. Clamping frame; 19. Discharge port; 20. Limiting contact; 21. Storage frame; 22. Push plate; 23. Power shaft; 24. Incomplete gear; 25. Power gear; 26. Active... 27. Gear; 28. Driven Gear 1; 29. ​​Combination Frame; 30. Ejector Plate; 31. Lifting Rod; 32. Guide Ring; 33. Suspension Frame; 34. Cylinder; 35. Smearing Plate; 36. Traction Ring; 37. Infusion Piston Cylinder; 38. Glue Outlet; 39. Glue Storage Tank; 40. Worm Gear; 41. Worm Gear; 42. Gear Roller; 43. Driven Gear 2; 44. Gear Ring; 45. Pawl; 46. Rack; 47. Connecting Rod 3; 48. Connecting Frame; 49. Pusher Frame; 50. Lower Press Head; 51. Synchronous Lower Press Frame. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example: This invention provides an automated processing and assembly device for headphone acoustic components, comprising: Please see the appendix Figure 1 The base frame 1 is rotatably connected to the center of the base frame 1. Multiple combination frames 28 are equidistantly arranged around the outer periphery of the turntable 3 to cooperate with the assembly of the headphone acoustic components, serving as the assembly area for the headphone acoustic components. The interior of the combination frame 28 is connected to the ejector plate 29 through the lifting component to lift the material inside the combination frame 28 to a certain height to cooperate with the gluing and unloading of the headphone acoustic components. Specifically, the specifications of the combination frame 28 are adapted to the required headphone acoustic components, which are voice coil and diaphragm. These two components are usually glued together and have a disc-shaped structure.

[0024] Please see the appendix Figure 9 -Appendix Figure 11The lifting assembly includes a guide ring 31 located on the bottom side of the turntable 3 and multiple lifting rods 30 that slide vertically on the bottom side of the turntable 3. The top side of the lifting rods 30 is fixedly connected to the ejector plate 29, the bottom side of the guide ring 31 is fixedly connected to the base frame 1, the bottom end of the lifting rods 30 abuts against the top side of the guide ring 31, and the top side of the guide ring 31 is provided with two protrusions of different heights. Specifically, directly below the area corresponding to the gluing station and the unloading station, the structure on the auxiliary guide ring 31 is a raised structure. When the lifting rod 30, which follows the displacement of the turntable 3, reaches this point, it drives the ejector plate 29 on its top side to rise as well. The gluing station advances the material surface and the smearing plate 35, but does not exceed the edge height of the assembly frame 28, and continues to be limited by the assembly frame 28. The unloading station will cause the lifting rod 30 to drive the ejector plate 29 on its top side to eject the assembled material out of the assembly frame 28.

[0025] Please see the appendix Figure 2 and attached Figure 3 There are two side frames 2, which are fixedly connected to the left and right sides of the base frame 1 respectively. The top of the side frame 2 is equipped with a discharge component, which works with the material handling unit at the bottom of the side frame 2 to handle the material. The accessories of the headphone acoustic components are taken out from the discharge port of the discharge component and placed on the assembly frame 28 for assembly. The material handling component is connected to a pneumatic power unit through the connecting air pipe 16 to cooperate with the material handling unit to clamp and unload the material after handling. Please see the appendix Figure 2 Appendix Figure 4 and attached Figure 6 The material handling unit includes a rotating frame 7 rotatably connected to one side of the lifting frame 4. A traction head 8 is fixedly connected to one end of the rotating frame 7. The traction head 8 rolls against the traction groove opened on the outer wall of the side frame 2. A material handling head 9 is fixedly connected to the other end of the rotating frame 7. A material receiving cavity is opened inside the material handling head 9. Clamping frames 18 are horizontally slidable on both sides of the inner outer periphery of the material handling head 9 by springs. An expansion air bag 17 is installed at the top of the clamping frame 18. The output end of the connecting air pipe 16 is connected to two expansion air bags 17 through a branch pipe. Specifically, driven by the lifting frame 4, the rotating frame 7 connected to the lifting frame 4 is lifted, and the structure connected to it, including the material picking head 9, is displaced. The traction head 8 is offset along the traction groove on the side frame 2. During the offset, the rotating frame 7 connected to it is rotated together. When it reaches the top, the material picking head 9 is rotated 180°, so that the opening of the material receiving cavity of the material picking head 9 faces upward and is inserted into the inside of the discharge port 19. After the material is picked up, the material picking head 9 is displaced and rotated back to its original position with the rotating frame 7 and is inserted into the combination frame 28 directly below it to complete the material discharge.

[0026] Please see the appendix Figure 4 and attached Figure 5The pneumatic unit includes a slide rail 12 fixedly connected to one end of the lifting frame 4 and the other side, and a guide plate 10 fixed to one side of the side frame 2. One side of the slide rail 12 slides vertically to the side frame 2, and the other side of the slide rail 12 slides horizontally with a guide head 13. The guide head 13 slides against the guide groove opened on the outer wall of the guide plate 10. The path of the guide groove is a closed path, and two one-way limiting heads 11 are rotatably connected inside the guide groove to keep the movement trajectory of the guide head 13 unidirectional. A gas piston cylinder 15 is installed on the top side of the slide rail 12. The pushing part of the gas piston cylinder 15 is connected to the guide head 13 through a connecting rod 14. The output end of the gas piston cylinder 15 is connected to the input end of the connecting air pipe 16. Specifically, driven by the lifting frame 4, the slide rail 12 connected to the lifting frame 4 is lifted, and the guide head 13 on its outer wall moves together. The moving guide head 13 moves in the guide groove on the guide plate 10 until it follows the slide rail 12 to the top of the guide groove and pushes open the one-way limiting head 11 at the top. When the lifting frame 4 descends, the guide head 13 moves horizontally along the slope of the guide groove. At this time, the material picking head 9 is completing the material picking process. At this time, the horizontally moving guide head 13 drives the connecting rod 14 to move, causing the piston cylinder 15 on the connecting rod 14 to... Air from the piston cylinder 15 enters the expansion bladder 17 through the connecting air pipe 16, causing the expansion bladder 17 to expand. The expanded expansion bladder 17 then triggers the clamping frame 18 to move, causing the clamping frame 18 to hold the material. This prevents the material from falling off after the material is rotated with the picking head 9. As the picking head 9 inserts into the assembly frame 28 directly below it, the guide head 13 reaches the second ramp and resets along the ramp, thereby drawing back the air from the piston cylinder 15 and contacting the clamping frame 18, causing the material in the picking head 9's receiving chamber to fall into the assembly frame 28.

[0027] Please see the appendix Figure 2 Appendix Figure 7 and attached Figure 8 The discharge assembly includes a discharge port 19 fixedly connected to the top side of the side frame 2. The discharge port 19 is internally connected, and multiple limit contacts 20 are connected to the bottom of the interior by springs. The end contour of the limit contacts 20 is arc-shaped. A storage frame 21 for storing materials is fixedly connected to the top of the discharge port 19. A pusher plate 22 slides horizontally inside the storage frame 21 by springs. Specifically, the two storage boxes 21 respectively store the voice coil and diaphragm, which are the raw materials for the acoustic components of the headphones. The assembly process of the voice coil and diaphragm is to bond them together with glue. After the opening of the material receiving head 9 is facing upward and inserted into the material feeding port 19, the arc-shaped structure of the edge of the opening of the material receiving head 9 abuts against the arc-shaped end of the limiting contact 20 inside the material feeding port 19, causing the limiting contact 20 to retract into the material feeding port 19, allowing the material inside the material feeding port 19 to fall into the material receiving head 9. Then, the rotating frame 7 moves downward with the lifting frame 4, causing the material receiving head 9 to detach from the material feeding port 19. During the detachment process, the arc-shaped end of the limiting contact 20 gradually returns to its original position under the action of the spring along the arc-shaped structure of the edge of the opening of the material receiving head 9. The structure of the arc-shaped end of the limiting contact 20 inserts into the gap between the material and the material receiving head 9 through a curve, causing the material that has not entered the material receiving port to be separated and then restricted by the limiting contact 20. The materials inside the storage box 21 are stacked. When a stack of materials is used up, the pusher plate 22, which is pushed by the compression spring, will push the materials to the discharge port 19.

[0028] Please see the appendix Figure 3 Appendix Figure 5 and attached Figure 10 The power shaft 23 is rotatably connected to the bottom end of the base frame 1. The power shaft 23 is connected to a motor, which serves as the power source, via two meshing bevel gears. The middle end of the power shaft 23 is connected to the bottom side of the turntable 3 via a gear set. Both ends of the power shaft 23 are connected to lifting frames 4 via power components. The inner wall of the lifting frame 4 slides perpendicularly to the side frame 2. One end of the lifting frame 4 is connected to the material handling unit, and the other end is connected to the pneumatic power unit. The power component includes a power arm 6 rotatably connected to the bottom end of the side frame 2. One end of the power arm 6... The other end of the lifting frame 4 is connected to the other end of the power arm 6 via a connecting rod 5. The other end of the power arm 6 is connected to the power shaft 23 via a synchronous pulley and synchronous belt through a meshing drive gear 26 and a driven gear 27. The drive gear 26 and the driven gear 27 are of different sizes to perform speed change transmission. The gear set includes an incomplete gear 24. The bottom side of the incomplete gear 24 is connected to the power shaft 23 through two meshing bevel gears. The center bottom side of the turntable 3 is fixedly connected to a power gear 25, which is located on one side of the incomplete gear 24. Specifically, the different sizes of the driving gear 26 and driven gear 27 are used for speed transmission, and the gap in the indirect transmission of the incomplete gear 24 is used to rotate the turntable 3 during material handling. During the assembly of the headphone acoustic components, the motor drives the power shaft 23 to rotate via two meshing bevel gears. The power shaft 23 then drives the driving gear 26 to rotate via a synchronous belt and pulley. This, in turn, drives the incomplete gear 24 via two meshing bevel gears, causing it to intermittently mesh with the power gear 25 fixed to the bottom of the turntable 3. The rotating driving gear 26 meshes with the driven gear 27 connected to the power arm 6, which in turn causes the power arm 6 to move the connecting rod 5, thus moving the lifting frame 4. The vertical displacement causes the structure connected to the lifting frame 4 to move as well. During the process of the lifting frame 4 being raised by the connecting rod 5, the missing part on the incomplete gear 24 is left unattended, allowing the meshing area to mesh with the power gear 25, thereby causing the turntable 3 to rotate. The rotating turntable 3 causes the combination frame 28 containing the material to move, guiding the material in the combination frame 28 to the next station, so that the material arrives in sequence at the first unloading station, the glue application station, the second unloading station, the compaction station, and the unloading station.

[0029] Please see the appendix Figure 1 and attached Figure 12 The top of the suspended frame 32 is fixedly connected to the adjacent side of the two side frames 2. A dispensing assembly is installed at one bottom end of the suspended frame 32, and a pusher unit is installed at the other bottom end of the suspended frame 32. A synchronization assembly is installed on the top side of the pusher assembly, and a worm gear 41 is installed on the bottom side of the synchronization assembly. The worm gear 41 is connected to the drive shaft 34 of the dispensing assembly through a synchronous belt and synchronous pulley. Please see the appendix Figure 13 - Appendix Figure 15 The dispensing assembly includes a cylinder 33 fixedly connected to one end of the bottom side of the suspension frame 32, a drive shaft 34 rotatably connected to the center of the cylinder 33, and the bottom end of the drive shaft 34 passes through the bottom side of the cylinder 33 and is fixedly connected to a smearing plate 35. A traction ring 36 is vertically slidable on the inner outer periphery of the cylinder 33 by a spring. The inner periphery of the traction ring 36 is connected to the traction groove opened on the outer wall of the drive shaft 34 by a traction protrusion. An infusion piston cylinder 37 is installed on the bottom side of the traction ring 36. The pushing part on the bottom side of the infusion piston cylinder 37 is fixedly connected to the cylinder 33. The input end of the infusion piston cylinder 37 is connected to a glue storage tank 39 for storing glue through a hose. The output end of the infusion piston cylinder 37 is connected to a glue outlet 38 through a hose. The glue outlet 38 is fixedly connected to the bottom outer periphery of the cylinder 33. Specifically, the rotating worm 40 meshes with the worm wheel 41, causing the worm wheel 41 to drive the transmission shaft 34 to rotate via the synchronous belt and synchronous pulley. The rotating transmission shaft 34 drives the bottom smearing plate 35 to rotate, and through the traction groove on the outer wall, it drives the traction ring 36 to move up and down on one side, outputting glue to the glue outlet 38. The glue outlet 38 drips onto the material surface on the bottom side, and then the infusion piston cylinder 37 draws glue into the glue storage tank 39. During this process, the position of the smearing plate 35 and the glue outlet 38 do not coincide. Subsequently, the rotating smearing plate 35 scrapes the glue, making the glue evenly spread by the smearing plate 35.

[0030] Please see the appendix Figure 16 -Appendix Figure 18 The pusher unit includes a worm gear 40 rotatably connected to the other end of the bottom side of the suspended frame 32. The top side of the worm wheel 41 is rotatably connected to the suspended frame 32, and the worm wheel 41 meshes with the worm gear 40. Toothed rollers 42 are fixedly connected to both sides of the worm gear 40, and driven gears 43 are meshed on both the front and rear sides of the toothed rollers 42. A pusher frame 49 is provided at the other end of the bottom side of the suspended frame 32. The top two sides of the pusher frame 49 are rotatably connected to the outer periphery of the driven gears 43. The synchronization component includes a vertical... A connecting frame 48 slides at the bottom of the other end of the suspension frame 32. One side of the connecting frame 48 is fixedly connected to one end of the synchronous pressing frame 51. Both ends of the other side of the connecting frame 48 are connected to racks 46 through connecting rods 3 47. The racks 46 slide horizontally with the suspension frame 32 through tension springs. The outer circumferences of the two toothed rollers 42 on opposite sides are rotatably connected to toothed rings 44. The inner circumferences of the toothed rings 44 are provided with ratchet teeth. The inner circumferences of the two toothed rollers 42 on opposite sides are connected to pawls 45 through torsion springs. Specifically, the connecting frame 48, which moves downward following the synchronous pressing frame 51, pushes the rack 46 via the connecting rod 3 47, causing the rack 46 to mesh with the toothed ring 44 on the toothed roller 42. This causes the toothed ring 44 to rotate forward, resulting in the ratchet teeth on the toothed ring 44 abutting against the pawl 45, causing the pawl 45 to rotate forward. The forward rotation is limited, thus transmitting the force on the toothed ring 44 to the toothed roller 42, causing the toothed roller 42 and the worm gear 40 to rotate synchronously. The rotating toothed roller 42 meshes with the driven gears 4 on both sides. When the rotation occurs, the two cylinders 33 pull the pusher frame 49 connected to them to move along the connection point. The material pushed out of the unloading station is pushed out of the area of ​​the combination frame 28 by the movement curve of the pusher frame 49, and slides into the unloading frame along the slope at the rear end of the base frame 1. When the rack 46 is reset, the toothed ring 44 will be reversed and the ratchet on the toothed ring 44 will abut against the pawl 45, causing the pawl 45 to be reversed. The reversed pawl 45 will lie on the empty part, causing the toothed ring 44 to rotate freely.

[0031] Please see the appendix Figure 19The pressing head 50 is used to compact the two bonded headphone acoustic component parts to improve the bonding strength. The outer wall of the pressing head 50 is fixedly connected to the synchronous pressing frame 51. One end of the synchronous pressing frame 51 is connected to the synchronous component, and the other end of the synchronous pressing frame 51 is pressed down by the descending material handling unit, triggering the pressing head 50 to move downward. The pressing head 50 slides vertically to the bottom of the suspension frame 32 through the spring. Specifically, at the compaction station, the synchronous pressing frame 51 follows the pressing of one of the rotating frames 7 and moves downward in sync, causing the pressing head 50 connected to it to press down on the material on its bottom side in sync, thus compacting the material bonded by the glue and improving the firmness of the assembly. After the rotating frame 7 releases the pressure on the synchronous pressing frame 51, it will be reset by the spring.

[0032] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated processing and assembly equipment for headphone acoustic components, characterized in that, include: The base frame (1) is rotatably connected to the center of the base frame (1). The outer periphery of the turntable (3) is equidistantly surrounded by multiple combination frames (28) for assembling the headphone acoustic components, which serve as the assembly area for the headphone acoustic components. The interior of the combination frame (28) is connected to an ejector plate (29) through a lifting component to lift the material inside the combination frame (28) to a certain height to cooperate with the gluing and unloading of the headphone acoustic components. Side frame (2), there are two side frames (2), and they are fixedly connected to the left and right sides of the base frame (1) respectively. The top of the side frame (2) is equipped with a discharge component, which works with the material handling unit at the bottom of the side frame (2) to handle the material. The accessories of the headphone acoustic component are taken out from the discharge port of the discharge component and placed on the assembly frame (28) for assembly. The material handling component is connected to a pneumatic power unit through a connecting air pipe (16) to cooperate with the material handling unit to clamp and unload the material after it is handled. The power shaft (23) is rotatably connected to the bottom end of the base frame (1). The power shaft (23) is connected to a motor as a power source through two meshing bevel gears. The middle end of the power shaft (23) is connected to the bottom side of the turntable (3) through a gear set. Both ends of the power shaft (23) are connected to a lifting frame (4) through a power assembly. The inner wall of the lifting frame (4) slides perpendicularly to the side frame (2). One side of one end of the lifting frame (4) is connected to the material handling unit, and the other side of one end of the lifting frame (4) is connected to the pneumatic power unit. The top of the suspended frame (32) is fixedly connected to the adjacent side of the two side frames (2). A dispensing assembly is installed at one bottom end of the suspended frame (32), and a pusher assembly is installed at the other bottom end of the suspended frame (32). A synchronization assembly is installed on the top side of the pusher assembly, and a worm gear (41) is installed on the bottom side of the synchronization assembly. The worm gear (41) is connected to the drive shaft (34) of the dispensing assembly through a synchronous belt and a synchronous pulley. The pressing head (50) is used to compact the two bonded earphone acoustic component parts to improve the bonding strength. The outer wall of the pressing head (50) is fixedly connected to the synchronous pressing frame (51). One end of the synchronous pressing frame (51) is connected to the synchronous component, and the other end of the synchronous pressing frame (51) is pressed down by the descending material handling unit, triggering the pressing head (50) to move downward. The pressing head (50) slides vertically to the bottom of the suspension frame (32) through the spring.

2. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The material handling unit includes a rotating frame (7) rotatably connected to one side of the lifting frame (4). A traction head (8) is fixedly connected to one end of the rotating frame (7). The traction head (8) rolls against the traction groove opened on the outer wall of the side frame (2). A material handling head (9) is fixedly connected to the other end of the rotating frame (7). A material receiving cavity is opened inside the material handling head (9). Clamping frames (18) slide horizontally on both sides of the inner outer periphery of the material handling head (9) through springs. An inflatable air bladder (17) is installed at the top of the clamping frame (18). The output end of the connecting air pipe (16) is connected to the two inflatable air bladders (17) through a branch pipe.

3. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The pneumatic assembly includes a slide rail (12) fixedly connected to one end of the lifting frame (4) and a guide plate (10) fixed to one side of the side frame (2). One side of the slide rail (12) slides vertically to the side frame (2), and the other side of the slide rail (12) slides horizontally with a guide head (13). The guide head (13) slides against the guide groove opened on the outer wall of the guide plate (10). The path of the guide groove is a closed path, and two one-way limiting heads (11) are rotatably connected inside the guide groove to keep the movement trajectory of the guide head (13) unidirectional. A gas piston cylinder (15) is installed on the top side of the slide rail (12). The pushing part of the gas piston cylinder (15) is connected to the guide head (13) through a connecting rod (14). The output end of the gas piston cylinder (15) is connected to the input end of the connecting air pipe (16).

4. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The discharge assembly includes a discharge port (19) fixedly connected to the top side of the side frame (2). The discharge port (19) is internally connected, and the bottom of the port is connected to multiple limiting contacts (20) by springs. The end contour of the limiting contacts (20) is arc-shaped. The top of the discharge port (19) is fixedly connected to a storage frame (21) for storing materials. The storage frame (21) has a pusher plate (22) that slides horizontally inside by springs.

5. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The lifting assembly includes a guide ring (31) located on the bottom side of the turntable (3) and a plurality of lifting rods (30) that slide vertically on the bottom side of the turntable (3). The top side of the lifting rod (30) is fixedly connected to the ejector plate (29), the bottom side of the guide ring (31) is fixedly connected to the base frame (1), the bottom end of the lifting rod (30) abuts against the top side of the guide ring (31), and the top side of the guide ring (31) is provided with two protrusions of different heights.

6. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The gear set includes an incomplete gear (24), the bottom side of which is connected to the power shaft (23) via two meshing bevel gears. A power gear (25) is fixedly connected to the center bottom side of the turntable (3), and the power gear (25) is located on one side of the incomplete gear (24).

7. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The power assembly includes a power arm (6) rotatably connected to the bottom of the side frame (2). One end of the power arm (6) is connected to the other end of the lifting frame (4) via a connecting rod (5). The other end of the power arm (6) is connected to the power shaft (23) via a synchronous pulley and synchronous belt through a meshing drive gear (26) and driven gear (27). The drive gear (26) and driven gear (27) are of different sizes.

8. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The dispensing assembly includes a cylinder (33) fixedly connected to one end of the bottom side of the suspension frame (32). The drive shaft (34) is rotatably connected to the center of the cylinder (33), and the bottom end of the drive shaft (34) passes through the bottom side of the cylinder (33) and is fixedly connected to a smearing plate (35). A traction ring (36) slides vertically on the inner outer periphery of the cylinder (33) via a spring. The inner periphery of the traction ring (36) is connected to the traction groove opened on the outer wall of the drive shaft (34) via a traction protrusion. An infusion piston cylinder (37) is installed on the bottom side of the traction ring (36). The pushing part on the bottom side of the infusion piston cylinder (37) is fixedly connected to the cylinder (33). The input end of the infusion piston cylinder (37) is connected to a glue storage tank (39) for storing glue via a hose. The output end of the infusion piston cylinder (37) is connected to a glue outlet (38) via a hose. The glue outlet (38) is fixedly connected to the bottom outer periphery of the cylinder (33).

9. The automated processing and assembly equipment for headphone acoustic components according to claim 1, characterized in that, The pusher unit includes a worm (40) rotatably connected to the other end of the bottom side of the suspended frame (32), the top side of the worm wheel (41) is rotatably connected to the suspended frame (32), the worm wheel (41) meshes with the worm (40), toothed rollers (42) are fixedly connected to both sides of the worm (40), driven gears (43) are meshed on both the front and rear sides of the toothed rollers (42), and a pusher frame (49) is provided at the other end of the bottom side of the suspended frame (32), the top two sides of the pusher frame (49) are rotatably connected to the outer periphery of the driven gears (43).

10. The automated processing and assembly equipment for headphone acoustic components according to claim 9, characterized in that, The synchronization component includes a connecting frame (48) that slides vertically at the bottom of the other end of the suspension frame (32). One side of the connecting frame (48) is fixedly connected to one end of the synchronous pressing frame (51). Both ends of the other side of the connecting frame (48) are connected to racks (46) via connecting rods (47). The racks (46) slide horizontally with the suspension frame (32) via tension springs. The outer periphery of the two toothed rollers (42) on opposite sides is rotatably connected to toothed rings (44). The inner periphery of the toothed rings (44) is provided with ratchet teeth. The inner periphery of the two toothed rollers (42) on opposite sides is connected to pawls (45) via torsion springs.

Images