Voice coil positioning mechanism of loudspeaker voice diaphragm assembly

Abstract

The utility model relates to the technical field of loudspeaker production, in particular to a voice coil positioning mechanism of a loudspeaker voice diaphragm assembly, which comprises a voice diaphragm seat and a voice coil seat, the voice diaphragm seat and the voice coil seat are connected through a support column, a groove is formed in the voice diaphragm seat, and an output shaft of a first cylinder penetrates through the bottom of the groove; a positioning column is arranged on the voice coil seat, and the top of the positioning column is driven by a second cylinder to lift on the voice coil seat; a voice diaphragm conveying belt and a voice coil conveying belt for feeding materials to the voice diaphragm base and the voice coil base are arranged between the voice diaphragm base and the voice coil base, a first containing groove and a first penetrating hole are formed in the voice diaphragm conveying belt at intervals, and a strip-shaped penetrating hole matched with the outer diameter of an output shaft of the first air cylinder is formed between the first containing groove and the first penetrating hole. The voice coil conveying belt is provided with a second placing groove and a second through hole. A rotating disc on the voice diaphragm base is used for bearing the assembled voice diaphragm assembly, mounting grooves are formed in the rotating disc in a circumferential array mode, third penetrating holes are formed in the bottoms of the mounting grooves, and a correcting mechanism is installed on the rotating disc. According to the invention, the bonding efficiency and bonding quality of the voice diaphragm and the voice coil are improved.

Description

Technical Field

[0001] This application relates to the field of loudspeaker manufacturing technology, and in particular to a voice coil positioning mechanism for a loudspeaker diaphragm assembly. Background Technology

[0002] Various loudspeakers are widely used in mobile phones, laptops, telephones, tablets, automobiles, and other fields due to their small size and lightweight design. The voice coil is one of the most important components of a loudspeaker; it is essentially the engine of the loudspeaker. The tolerance requirements for the voice coil are very high, including its height, size, flatness, viscosity, etc. Therefore, this also places high demands on the assembly process of the voice coil. Usually, the voice coil and diaphragm are assembled manually by applying glue. Due to the large market demand, the traditional manual operation method is far from meeting the market demand due to its low efficiency and low yield of finished products. Therefore, how to improve the production efficiency of loudspeaker diaphragms and ensure the quality of loudspeaker diaphragms has become an urgent problem for those skilled in the art to solve.

[0003] Chinese patent CN215121202U discloses a bonding device for a voice coil and a diaphragm, including a worktable. Support plates are fixedly installed on the left and right sides of the upper outer surface of the worktable, and bases are fixedly installed on the left and right sides of the lower outer surface of the worktable. A diaphragm positioning groove is formed in the middle of the upper outer surface of the worktable, and cooling mechanisms are provided on both sides of the diaphragm positioning groove. A top plate is fixedly installed on the upper outer surface of the support plates, and a cylinder is fixedly installed on the upper outer surface of the top plate. This invention provides a bonding device for a voice coil and a diaphragm. By placing the diaphragm inside the diaphragm positioning groove, and then fitting the voice coil onto the outer wall of the bottom of the voice coil positioning post, adhesive is applied to the area where the diaphragm and voice coil are bonded. The cylinder's operation causes the voice coil positioning post to descend, resulting in a stable bond between the voice coil and the diaphragm with a short curing time, leading to better application prospects.

[0004] However, in the existing technology, when the voice coil is installed on the diaphragm assembly, the diaphragm and voice coil are positioned by the diaphragm positioning groove and the voice coil positioning post, respectively. However, the diaphragm and voice coil still need to be placed manually, and they need to be removed manually after bonding. The bonding efficiency is low and cannot meet the growing market demand. Utility Model Content

[0005] In order to overcome the problems existing in the prior art, this application provides a voice coil positioning mechanism for a loudspeaker diaphragm assembly.

[0006] The voice coil positioning mechanism for a loudspeaker diaphragm assembly provided in this application adopts the following technical solution:

[0007] A voice coil positioning mechanism for a loudspeaker diaphragm assembly includes a diaphragm seat and a voice coil seat, which are connected by a support column. The diaphragm seat has a groove for accommodating the diaphragm, and the bottom of the groove has an output shaft of a first cylinder that drives the diaphragm in and out of the groove. The voice coil seat has a positioning column for accommodating the voice coil, and the top of the positioning column is driven by a second cylinder to move up and down on the voice coil seat. A diaphragm conveyor belt and a voice coil conveyor belt are provided between the diaphragm seat and the voice coil seat to feed materials to each of them respectively. The diaphragm conveyor belt has a first placement groove and a first through hole spaced apart, and a strip-shaped through hole adapted to the outer diameter of the output shaft of the first cylinder is provided between the first placement groove and the first through hole. The voice coil conveyor belt has a second placement groove and a second through hole. A rotating seat is rotatably installed inside the diaphragm seat, wherein the rotating seat is used to support the assembled diaphragm assembly. The rotating seat has a circumferential array of mounting grooves for placing the diaphragm assembly, and the bottom of the mounting groove has a third through hole for the output end of the first cylinder to pass through. A correction mechanism is installed at the end of the rotating seat away from the diaphragm seat.

[0008] By adopting the above technical solution, the groove on the diaphragm seat is used to place the diaphragm coated with adhesive. The voice coil seat is fixed by a positioning post. The voice coil base is connected to the diaphragm seat by a support post and extends to the bottom of the diaphragm seat. The bottom of the support post supports the diaphragm seat and provides space to accommodate the first cylinder. When the diaphragm conveyor belt and the voice coil conveyor belt feed the diaphragm and voice coil synchronously, the first placement groove on the diaphragm conveyor belt is used to place the diaphragm coated with adhesive. When the first placement groove moves above the groove, the output shaft of the first cylinder passes through the groove and the bottom of the first placement groove, pushing the diaphragm located in the first placement groove out of the first placement groove. Then the diaphragm conveyor belt continues to move. During the movement of the diaphragm conveyor belt, the output shaft of the first cylinder moves along the strip-shaped perforation from the first placement groove to the first perforation. Then the output shaft of the first cylinder is driven to descend, thereby taking the diaphragm into the groove to wait for bonding with the voice coil. The voice coil is placed in the second placement slot on the voice coil conveyor belt. When the second placement slot moves to below the positioning post, the second cylinder drives the positioning post to descend into the second placement slot and connect with the voice coil. Then, the second cylinder drives the positioning post to rise and remove the voice coil from the second placement slot. The voice coil conveyor belt continues to move, moving the second perforation to below the positioning post. The second cylinder drives the positioning post to descend, passing through the second and first perforations and entering the groove, where the voice coil on the positioning post is bonded to the diaphragm in the groove. It is important to note that when the positioning post enters the second placement slot, the end of the positioning post does not need to contact the bottom surface of the second placement slot to be relatively fixed with the voice coil. This ensures that when the positioning post, carrying the voice coil, is bonded to the diaphragm, the voice coil can fully abut and bond with the diaphragm, guaranteeing the bonding quality of both. After the voice coil and diaphragm are bonded in the groove of the diaphragm holder, the output shaft of the first cylinder is driven to descend, moving the bonded diaphragm assembly into the mounting slot in the rotating seat. The output shaft of the first cylinder is then driven to descend through the third through hole at the bottom of the mounting slot, moving the output shaft of the first cylinder below the rotating seat. The rotating seat is then rotated to move the diaphragm assembly out of the groove, and the next set of empty mounting slots on the rotating seat is moved into the groove of the voice coil holder. When the mounting slot containing the diaphragm assembly moves below the correction mechanism, the correction mechanism corrects the voice coil misalignment of the diaphragm assembly and accelerates the curing of the adhesive.

[0009] Preferably, a bearing plate is installed at the free end of the output shaft of the first cylinder, wherein the diameter of the bearing plate is smaller than the inner diameter of the groove.

[0010] Preferably, the bottom of the first placement groove has a through hole with an inner diameter between the outer diameter of the diaphragm and the outer diameter of the carrier plate, and the outer diameter of the first through hole is larger than the outer diameter of the diaphragm.

[0011] By adopting the above technical solution, the bearing plate installed at the free end of the first cylinder output shaft can more stably support the diaphragm and prevent the diaphragm from falling off the free end of the first cylinder output shaft during the lifting process. The through hole opened at the bottom of the first placement groove can facilitate the passage of the bearing seat.

[0012] Preferably, the outer diameter of the positioning post is smaller than the inner diameter of the voice coil, and the cavity of the positioning post is provided with a tensioning mechanism for fixing the voice coil. The tensioning mechanism includes a micro motor and a turntable mounted on the output shaft of the motor. The edge of the turntable is symmetrically connected to a universal joint, and the end of the universal joint is rotatably connected to a clamping rod that passes through a horizontal hole outside the cavity of the positioning post. The clamping rod contacts the inner side of the voice coil.

[0013] Preferably, the inner diameter of the second placement slot is adapted to the outer diameter of the voice coil, and the inner diameter of the second perforation is larger than the outer diameter of the voice coil.

[0014] Preferably, the diaphragm conveyor belt and the voice coil conveyor belt move synchronously, wherein the first placement groove corresponds to the second placement groove, and the first perforation corresponds to the second perforation.

[0015] By adopting the above technical solution, when the voice coil is removed from the second placement slot, the positioning post is driven by a micro motor in the bottom cavity of the positioning post to rotate the turntable on its output shaft. The rotation of the turntable drives the universal joint connected symmetrically on its edge to move. The movement of the universal joint drives the clamping rod at the end away from the turntable to move in the horizontal perforation outside the cavity. Thus, the clamping rod can move in and out of the horizontal perforation, realizing the tensioning and unlocking of the voice coil by the positioning post. The voice coil is tensioned and fixed when it is removed from the second placement slot. After the voice coil is bonded to the diaphragm in the groove, it is unlocked. Furthermore, the synchronous movement of the diaphragm conveyor belt and the voice coil conveyor belt realizes the continuous feeding, bonding and discharging of the voice coil and the diaphragm, which greatly improves the bonding efficiency and the production efficiency of the speaker diaphragm assembly.

[0016] Preferably, the correction mechanism includes a correction cylinder located above the mounting groove and an air-curing ring distributed in annularly below the correction cylinder. The output end of the correction cylinder adopts a cylindrical body and a conical positioning fixture at the free end of the cylindrical body. The thickness of the conical positioning fixture is less than the thickness of the voice coil. The air-curing ring has air holes arranged in a circular array facing the connection between the sound mold and the voice coil.

[0017] Preferably, the side of the diaphragm seat has a receiving cavity for accommodating the rotating seat, wherein a discharge motor for driving the turntable to rotate is installed on the top surface of the receiving cavity.

[0018] By employing the above technical solution, during the transfer of the bonded voice coil and diaphragm on the rotating seat, the voice coil is misaligned due to the centrifugal force of the rotating seat and the flow of adhesive. The corrective cylinder of the corrective mechanism drives the cylindrical body with a conical positioning fixture at its output end to act on the voice coil on the diaphragm. The conical positioning fixture acts on the voice coil, and the lateral force from the conical surface pushes the voice coil to the standard position. The thickness of the conical positioning fixture is less than the thickness of the voice coil, ensuring that the voice coil coincides with the cylindrical body after reaching the standard center position, thus correcting and positioning the voice coil on the diaphragm. Then, air is blown through the air holes on the air-curing ring at the bottom of the corrective cylinder to cure the connection between the voice coil and diaphragm, achieving a fixed connection between the diaphragm and voice coil. Furthermore, the rotating seat is installed in the receiving cavity on the side of the diaphragm seat, and the rotating seat is driven to rotate by the discharge motor at the top of the receiving cavity, realizing the assembly, correction, and unloading of the diaphragm assembly on the diaphragm seat.

[0019] In summary, this application includes at least one of the following beneficial technical effects:

[0020] 1. In this application, the diaphragm conveyor belt and voice coil conveyor belt operate synchronously, cooperating with the cylinder to ensure precise positioning of the diaphragm and voice coil. This not only makes the conveying process efficient and smooth but also provides a precise foundation for subsequent assembly, greatly improving overall assembly efficiency. Simultaneously, the output shaft of the first cylinder, paired with a support plate, cleverly fits into the bottom limiting groove of the recess, firmly supporting the diaphragm and ensuring its placement accuracy, providing a reliable guarantee for diaphragm installation.

[0021] 2. In the unloading process, this application rotates the assembled diaphragm and voice coil to the straightening mechanism for straightening and curing of the adhesive by blowing air, and then unloads the diaphragm assembly. This allows the bonding station to bond the next set of diaphragms and voice coils more quickly, improving the assembly quality and efficiency of the diaphragm assembly. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the overall structure of the voice coil positioning mechanism of a loudspeaker diaphragm assembly;

[0023] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 yes Figure 1 Enlarged view at point B in the middle;

[0025] Figure 4 This is a schematic diagram of the tensioning mechanism inside the cavity of the positioning column;

[0026] Figure 5 This is a schematic diagram of the structure of a diaphragm conveyor belt.

[0027] Explanation of reference numerals in the attached drawings: 1. Diaphragm seat; 11. Groove; 12. First cylinder; 121. Carrier plate; 13. Rotary seat; 131. Mounting groove; 132. Third perforation; 14. Correction mechanism; 141. Correction cylinder; 142. Air-blowing curing ring; 1421. Air blowing hole; 143. Cylindrical body; 144. Conical positioning fixture; 15. Receiving cavity; 151. Discharge motor; 2. Voice coil seat; 21 1. Positioning post; 211. Cavity; 212. Horizontal perforation; 22. Second cylinder; 23. Tensioning mechanism; 231. Micro motor; 232. Turntable; 233. Universal joint; 234. Clamping rod; 3. Support post; 4. Diaphragm conveyor belt; 41. First placement groove; 411. Through hole; 42. First perforation; 43. Strip perforation; 5. Voice coil conveyor belt; 51. Second placement groove; 52. Second perforation. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0029] This application discloses a voice coil positioning mechanism for a loudspeaker diaphragm assembly.

[0030] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A voice coil positioning mechanism for a loudspeaker diaphragm assembly includes a diaphragm seat 1 and a voice coil seat 2, which are connected by a support column 3. The diaphragm seat 1 has a groove 11 for accommodating the diaphragm, and the bottom of the groove 11 is through which the output shaft of a first cylinder 12 passes. The first cylinder 12 is used to drive the diaphragm in and out of the groove 11. The voice coil seat 2 has a positioning column 21 for accommodating the voice coil. The top of the positioning column 21 is driven by a second cylinder 22 to move up and down on the voice coil seat 2. A diaphragm conveyor belt 4 and a voice coil conveyor belt 5 are provided between the diaphragm seat 1 and the voice coil seat 2 for feeding materials to both respectively. The diaphragm conveyor belt 4 is spaced apart by a first placement... The first cylinder 12 has a first placement groove 41 and a first through hole 42, and a strip-shaped through hole 43 adapted to the outer diameter of the output shaft is provided between the first placement groove 41 and the first through hole 42. The voice coil conveyor belt 5 has a second placement groove 51 and a second through hole 52. A rotating seat 13 is rotatably installed in the diaphragm seat 1, wherein the rotating seat 13 is used to support the assembled diaphragm assembly. The rotating seat 13 has a circumferential array of mounting grooves 131 for placing the diaphragm assembly. The bottom of the mounting grooves 131 has a third through hole 132 for the output end of the first cylinder 12 to pass through. A straightening mechanism 14 is installed at the end of the rotating seat 13 away from the diaphragm seat 1. The groove 11 on the diaphragm seat 1 is used to place the diaphragm coated with glue. The voice coil is fixed on the voice coil seat 2 by a positioning post 21. The voice coil base is connected to the diaphragm seat 1 by a support post 3 and extends to the bottom of the diaphragm seat 1. The bottom of the support post 3 supports the diaphragm seat 1 and provides space to accommodate the first cylinder 12. When the diaphragm conveyor belt 4 and the voice coil conveyor belt 5 feed the diaphragm and voice coil simultaneously, the first placement groove 41 on the diaphragm conveyor belt 4 is used to place the diaphragm coated with glue. When the first placement groove 41 moves above the groove 11, the output shaft of the first cylinder 12 passes through the groove 11 and the bottom of the first placement groove 41, pushing the diaphragm located in the first placement groove 41 out of the first placement groove 41. Then the diaphragm conveyor belt 4 continues to move. During the movement of the diaphragm conveyor belt 4, the output shaft of the first cylinder 12 moves along the strip-shaped perforation 43 from the first placement groove 41 to the first perforation 42, and then drives the output shaft of the first cylinder 12 to descend, thereby taking the diaphragm into the groove 11 to wait for bonding with the voice coil.The voice coil is placed in the second placement groove 51 on the voice coil conveyor belt 5. When the second placement groove 51 moves to below the positioning post 21, the second cylinder 22 drives the positioning post 21 to descend into the second placement groove 51 to connect with the voice coil. Then, the second cylinder 22 drives the positioning post 21 to rise and remove the voice coil from the second placement groove 51. The voice coil conveyor belt 5 continues to move, moving the second through hole 52 to below the positioning post 21. The second cylinder 22 drives the positioning post 21 to descend, passing through the second through hole 52 and the first through hole 42, and then entering the groove 11 to bond the voice coil on the positioning post 21 to the diaphragm in the groove 11. It should be noted that when the positioning post 21 enters the second placement groove 51, the end of the positioning post 21 does not need to contact the bottom surface of the second placement groove 51 to be relatively fixed with the voice coil. In this way, when the positioning post 21 is bonding the voice coil to the diaphragm, the voice coil can fully abut and bond with the diaphragm, ensuring the bonding quality of the two. After the voice coil and diaphragm are bonded in the groove 11 of the diaphragm seat 1, the output shaft of the first cylinder 12 is driven down to move the bonded diaphragm assembly into the mounting groove 131 in the rotating seat 13. The output shaft of the first cylinder 12 is then driven down through the third through hole 132 at the bottom of the mounting groove 131 to move the output shaft of the first cylinder 12 to the bottom of the rotating disk 232 seat. The rotating seat 13 is then rotated to move the diaphragm assembly out of the groove 11. The next set of empty mounting grooves 131 on the rotating seat 13 is moved into the groove 11 of the voice coil seat 2. When the mounting groove 131 containing the diaphragm assembly moves to the bottom of the correction mechanism 14, the correction mechanism 14 corrects the voice coil misalignment of the diaphragm assembly and accelerates the curing of the adhesive.

[0031] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A support plate 121 is mounted on the free end of the output shaft of the first cylinder 12, wherein the diameter of the support plate 121 is smaller than the inner diameter of the groove 11. A through hole 411 with an inner diameter between the outer diameter of the diaphragm and the outer diameter of the support plate 121 is formed at the bottom of the first placement groove 41, and the outer diameter of the first through hole 42 is larger than the outer diameter of the diaphragm. The support plate 121 mounted on the free end of the output shaft of the first cylinder 12 can more stably support the diaphragm, preventing the diaphragm from falling off the free end of the output shaft of the first cylinder 12 during lifting and lowering. The through hole 411 at the bottom of the first placement groove 41 facilitates the passage of the support seat.

[0032] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The outer diameter of the positioning post 21 is smaller than the inner diameter of the voice coil, and the cavity 211 of the positioning post 21 is provided with a tensioning mechanism 23 for fixing the voice coil. The tensioning mechanism 23 includes a micro motor 231 and a turntable 232 mounted on the motor output shaft. The edge of the turntable 232 is symmetrically rotatably connected to a universal joint 233, and the end of the universal joint 233 is rotatably connected to a clamping rod 234 that passes through a horizontal through-hole 212 outside the cavity 211 of the positioning post 21. The clamping rod 234 contacts the inner side of the voice coil. The inner diameter of the second placement groove 51 is adapted to the outer diameter of the voice coil, and the inner diameter of the second through-hole 52 is larger than the outer diameter of the voice coil. The diaphragm conveyor belt 4 and the voice coil conveyor belt 5 move synchronously, wherein the first placement groove 41 corresponds to the second placement groove 51, and the first through-hole 42 corresponds to the second through-hole 52. When the voice coil is removed from the second placement slot 51, the positioning post 21 drives the turntable 232 on its output shaft to rotate via the micro motor 231 in the bottom cavity 211 of the positioning post 21. The rotation of the turntable 232 causes the universal joint 233 symmetrically connected to its edge to move. The movement of the universal joint 233 drives the clamping rod 234 at the end away from the turntable 232 to move in the horizontal through hole 212 outside the cavity 211. Thus, the clamping rod 234 can move in and out of the outer port of the horizontal through hole 212, realizing the tensioning and unlocking of the voice coil by the positioning post 21. The voice coil is tensioned and fixed when it is removed from the second placement slot 51. After the voice coil is bonded to the diaphragm in the groove 11, it is unlocked. The synchronous movement of the diaphragm conveyor belt 4 and the voice coil conveyor belt 5 realizes the continuous feeding, bonding and discharging of the voice coil and the diaphragm, which greatly improves the bonding efficiency and the production efficiency of the speaker diaphragm assembly.

[0033] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The correction mechanism 14 includes a correction cylinder 141 located above the mounting groove 131 and an air-curing ring 142 distributed annularly below the correction cylinder 141. The output end of the correction cylinder 141 adopts a cylindrical body 143 and a conical positioning fixture 144 at the free end of the cylindrical body 143. The thickness of the conical positioning fixture 144 is less than the thickness of the voice coil. The air-curing ring 142 has air holes 1421 arranged circumferentially on its surface, facing the connection between the sound mold and the voice coil. The side of the sound diaphragm seat 1 has a receiving cavity 15 for accommodating the rotating seat 13. The top surface of the receiving cavity 15 is equipped with a discharge motor 151 for driving the turntable 232 to rotate. When the voice coil and diaphragm, after being bonded, are transferred on the rotating seat 13, the voice coil may shift due to the centrifugal force of the rotating seat 13 and the flow of adhesive. The corrective cylinder 141 of the corrective mechanism 14 drives the cylindrical body 143, which has a conical positioning fixture 144 at its output end, to act on the voice coil on the diaphragm. The conical positioning fixture 144 acts on the voice coil, and the lateral force from the conical surface pushes the voice coil to the standard position. The thickness of the conical positioning fixture 144 is less than the thickness of the voice coil, ensuring that the voice coil coincides with the cylindrical body 143 after reaching the standard center position, thus correcting and positioning the voice coil on the diaphragm. Then, air is blown through the air holes 1421 on the air-curing ring 142 at the bottom of the corrective cylinder 141 to cure the connection between the voice coil and the diaphragm, achieving a fixed connection between the diaphragm and the voice coil. Furthermore, the rotating seat 13 is installed in the receiving cavity 15 on the side of the diaphragm seat 1, and the rotating seat 13 is driven to rotate by the discharge motor 151 at the top of the receiving cavity 15, so as to realize the assembly, correction and unloading of the diaphragm assembly on the diaphragm seat 1.

[0034] Working process: When the diaphragm conveyor belt 4 and the voice coil conveyor belt 5 feed the diaphragm and voice coil simultaneously, the first placement groove 41 on the diaphragm conveyor belt 4 is used to place the diaphragm coated with glue. When the first placement groove 41 moves above the groove 11, the output shaft of the first cylinder 12 passes through the groove 11 and the through hole 411 at the bottom of the first placement groove 41. The bearing plate 121 at the end of the output shaft of the first cylinder 12 pushes the diaphragm located in the first placement groove 41 out of the first placement groove 41. Then the diaphragm conveyor belt 4 continues to move. During the movement of the diaphragm conveyor belt 4, the output shaft of the first cylinder 12 moves along the strip-shaped perforation 43 from the first placement groove 41 to the first perforation 42. Then the output shaft of the first cylinder 12 is driven to descend, thereby bringing the diaphragm into the groove 11 to wait for bonding with the voice coil. A voice coil is placed in the second placement groove 51 on the voice coil conveyor belt 5. When the second placement groove 51 moves to below the positioning post 21, the second cylinder 22 drives the positioning post 21 to descend into the second placement groove 51. The voice coil is tensioned and connected by the tensioning mechanism 23 in its internal cavity 211. Then, the second cylinder 22 drives the positioning post 21 to rise and remove the voice coil from the second placement groove 51. The voice coil conveyor belt 5 continues to move, and the second perforation 52 is moved to below the positioning post 21. The second cylinder 22 drives the positioning post 21 to descend, pass through the second perforation 52 and the first perforation 42, and enter the groove 11 to bond the voice coil on the positioning post 21 to the diaphragm in the groove 11. The bonded diaphragm assembly is moved into the mounting slot 131 within the rotating base 13, and the output shaft of the first cylinder 12 is driven to descend through the third through hole 132 at the bottom of the mounting slot 131. The output shaft of the first cylinder 12 is moved to the bottom of the rotating disk 232. Then, the rotating base 13 is rotated to move the diaphragm assembly out of the groove 11. The next set of empty mounting slots 131 on the rotating base 13 is moved into the groove 11 of the voice coil seat 2. When the mounting slot 131 containing the diaphragm assembly is moved to the bottom of the correction mechanism 14, the correction mechanism 14 corrects the voice coil misalignment of the diaphragm assembly and accelerates the curing of the adhesive. Then, the diaphragm assembly is unloaded.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A voice coil positioning mechanism for a speaker cone assembly, characterized by: The utility model provides an audio film and voice coil automatic assembly device, including sound film seat (1) and voice coil seat (2), both are connected through support column (3), the recess (11) of accommodating audio film is seted up on the sound film seat (1), and the output shaft of first air cylinder (12) is penetrated through the recess (11) bottom, and the first air cylinder (12) is used to drive audio film to go in and out recess (11), the positioning column (21) of accommodating voice coil is equipped on the voice coil seat (2), and positioning column (21) top is driven to go up and down on voice coil seat (2) through second air cylinder (22), positioning column (21) is equipped with the audio film conveying belt (4) and voice coil conveying belt (5) that respectively feed two respectively between the sound film seat (1) and voice coil seat (2), the first placing groove (41) and first perforation (42) are set up in the audio film conveying belt (4) interval, and the first placing groove (41) is equipped with the strip perforation (43) with the first air cylinder (12) output shaft outer diameter adaptation between first perforation (42), the second placing groove (51) and second perforation (52) are set up on the voice coil conveying belt (5), Rotary seat (13) is rotatably installed in the sound film seat (1), wherein rotary seat (13) is used to bear the audio film assembly of assembling, wherein rotary seat (13) has the mounting groove (131) for placing audio film assembly in circumferential array, the third perforation (132) for the output end of first air cylinder (12) is set up in the bottom of mounting groove (131), and the rectification mechanism (14) is installed at the end of rotary seat (13) away from the sound film seat (1).

2. A voice coil positioning mechanism for a speaker cone assembly according to claim 1, wherein: The free end of the output shaft of the first air cylinder (12) is provided with a bearing disc (121), wherein the diameter of the bearing disc (121) is smaller than the inner diameter of the recess (11).

3. A voice coil positioning mechanism for a speaker cone assembly according to claim 2, wherein: The bottom of the first placing groove (41) is provided with a through hole (411) with an inner diameter between the outer diameter of the audio film and the outer diameter of the bearing disc (121), and the outer diameter of the first perforation (42) is greater than the outer diameter of the audio film.

4. A voice coil positioning mechanism for a speaker cone assembly according to claim 1, wherein: The outer diameter of the positioning column (21) is smaller than the inner diameter of the voice coil, and the cavity (211) of the positioning column (21) is provided with a tensioning mechanism (23) for fixing the voice coil, the tensioning mechanism (23) comprises a micro motor (231) and a turntable (232) mounted on the output shaft of the motor, the edge of the turntable (232) is symmetrically rotatably connected with a universal shaft (233), the end of the universal shaft (233) is rotatably connected with a pressing rod (234) penetrating through the outer horizontal perforation (212) of the cavity (211) of the positioning column (21), and the pressing rod (234) is in contact with the inner side of the voice coil.

5. A voice coil positioning mechanism for a speaker cone assembly according to claim 1, wherein: The inner diameter of the second placing groove (51) is adapted to the outer diameter of the voice coil, and the inner diameter of the second perforation (52) is greater than the outer diameter of the voice coil.

6. A voice coil positioning mechanism for a speaker cone assembly according to claim 5, wherein: The audio film conveying belt (4) and the voice coil conveying belt (5) move synchronously, wherein the first placing groove (41) corresponds to the second placing groove (51), and the first perforation (42) corresponds to the second perforation (52).

7. A voice coil positioning mechanism for a speaker cone assembly according to claim 1, wherein: The correcting mechanism (14) comprises a correcting cylinder (141) above the mounting groove (131) and a blowing solidification ring (142) circularly distributed below the correcting cylinder (141), wherein the output end of the correcting cylinder (141) adopts a cylindrical body (143) and a taper locating jig (144) at the free end of the cylindrical body (143), and the thickness of the taper locating jig (144) is less than the thickness of the voice coil, and the blowing solidification ring (142) is provided with blowing holes (1421) towards the connection between the voice mode and the voice coil in a circumferential array.

8. A voice coil positioning mechanism for a speaker cone assembly according to claim 7, wherein: The side surface of the diaphragm seat (1) is provided with a containing cavity (15) containing the rotating seat (13), and a discharging motor (151) for driving the rotation of the rotating disc is mounted on the top surface of the containing cavity (15).

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