Microphone assembly production control method and microphone assembly production line

Abstract

The invention relates to a microphone assembly production control method and a microphone assembly production line. A first rotary feeding mechanism, a grouping mechanism, a distance adjusting mechanism, a tabletting mechanism, a second translation mechanism, a coil stock clamping mechanism, a second rotary feeding mechanism, an assembling mechanism, a first feeding mechanism, a second feeding mechanism, a third feeding mechanism and a fourth feeding mechanism jointly form an assembling production line of microphones. Continuous, high-coordination and full-automatic production of the microphones can be realized, the production efficiency of the microphones is improved, and the labor cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of microphone production and manufacturing, and particularly relates to a control method for microphone assembly production and a microphone assembly production line. Background Art

[0002] The structure of a microphone is composed of multiple parts. As Figure 1 shown, when assembling the microphone, the outer shell 11 and the diaphragm 12 form the first assembled workpiece, and the pole plate 13, the connecting ring 14, and the plastic ring 15 form a three-component as the second assembled workpiece. The coiled material is stamped by a press, and the stamped gasket 16 is placed into the outer shell 11, and then the three-component is placed into the outer shell 11 to complete the assembly process before microphone encapsulation. Finally, the circuit board is placed into the outer shell 11 and then encapsulated.

[0003] When the microphone production is performing the assembly process before encapsulation, the most primitive assembly method is manual assembly. This method requires a large amount of human resources and has low assembly efficiency, which cannot meet the needs of production and processing. Some manufacturers have also developed some equipment for semi-automatic assembly, but these equipment can only achieve the assembly of a certain part. The assembly of multiple parts requires the development of multiple types of equipment, and the coordination between the equipment is poor, and the production and manufacturing cost is increased. To solve the above problems, the technological process of microphone assembly production has been improved and a microphone assembly production line has been developed. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a microphone assembly production line with strong coordination, high automation degree and high assembly efficiency and its control method.

[0005] To solve the above technical problem, the technical solution of the present invention is: A microphone assembly production line, comprising: A first rotary feeding mechanism located at the first station, the first rotary feeding mechanism includes a first turntable driven by a first motor, and a discharge port is provided on one side of the first turntable; A grouping mechanism located at the second station, the grouping mechanism includes two partition pins for grouping workpieces, and the partition pins are installed on the push rod of a first cylinder; A pitch adjustment mechanism located at the third station, the pitch adjustment mechanism includes a plurality of partition plates with partition teeth, the partition plates are arranged along the conveying direction of the first assembled workpiece, and the partition tooth pitch of the partition plate located downstream in the conveying direction is greater than that of the partition plate located upstream, and the mounting centers of the partition plates are equidistantly installed on a first mounting substrate, and the first mounting substrate is connected to the push rod of a second cylinder; The first translation mechanism arranged between the third working station and the fourth working station includes a second mounting substrate. The first mounting substrate is slidably mounted on the second mounting substrate. The first mounting substrate is connected to the push rod of a third air cylinder. The moving direction of the push rod of the third air cylinder is parallel to the conveying direction of the first assembled workpiece. The tablet pressing mechanism and the unwinding mechanism equipped with a coil material located at the fourth working station. The tablet pressing mechanism includes a main pressing platform. Above the main pressing platform, there is a pressing cover. A fourth air cylinder is mounted on the pressing cover. A pressing slider is mounted on the push rod of the fourth air cylinder. The unwinding mechanism includes a feeding shaft driven by a motor. The coil material is mounted on the feeding shaft. The second translation mechanism and the coil material clamping mechanism located at the fifth working station. The second translation mechanism includes a fifth air cylinder. The coil material clamping mechanism is connected to the push rod of the fifth air cylinder. The moving direction of the push rod of the fifth air cylinder is parallel to the conveying direction of the coil material. The coil material clamping mechanism includes a mounting seat connected to the push rod of the fifth air cylinder. A first pressing air cylinder is arranged on the mounting seat. The coil material passes through between the mounting seat and the first pressing air cylinder. The second rotary feeding mechanism located at the sixth working station. The second rotary feeding mechanism includes a second turntable driven by a second motor. There is a discharge port on one side of the second turntable. The assembling mechanism located at the seventh working station. The assembling mechanism includes a first ejector rod and a second ejector rod arranged in parallel. The first ejector rod and the second ejector rod are respectively driven by a sixth air cylinder and a seventh air cylinder.

[0006] As a preferred technical solution, it further includes: a first feeding mechanism arranged between the first working station, the second working station and the third working station; A second feeding mechanism arranged between the fourth working station and the sixth working station; A third feeding mechanism arranged between the sixth working station and the seventh working station; A fourth feeding mechanism arranged at the rear end of the seventh working station.

[0007] As a preferred technical solution, the first feeding mechanism, the second feeding mechanism, the third feeding mechanism and the fourth mechanism all include a conveying track. A vibrator is mounted below the conveying track. Above the conveying track, there is a travel groove facilitating the passage of a single workpiece.

[0008] As a preferred technical solution, both the first turntable and the second turntable include a turntable body. An annular support frame is provided on the outer side of the turntable body. A guide plate extending from the circumference of the turntable body towards the discharge port is provided at a position of the turntable body close to the discharge port. A baffle is provided inside the guide plate, and the baffle and the end of the guide plate are docked with the traveling groove. A rotating shaft connected to the motor is provided at the middle position of the turntable body. A support shaft is penetrated through the middle position of the rotating shaft. The top end of the support shaft extends out of the turntable body, and a top cover is installed at the top end of the support shaft. A paddle is installed on the outer side of the top cover, and the paddle distributes the workpieces inside the turntable body to the edge part of the turntable body.

[0009] As a preferred technical solution, a first pressing cylinder is provided on one side of the main pressing platform, and a second pressing platform is provided on the other side of the main pressing platform. A second pressing cylinder is installed on the second pressing platform. The coil material sequentially passes between the second pressing cylinder and the main pressing platform, between the first pressing cylinder and the mounting seat, and between the third pressing cylinder and the second pressing platform. When the pressing slider presses down the material, the push rods of the second pressing cylinder and the third pressing cylinder press down and clamp the coil material. When the pressing slider rises, the push rods of the second pressing cylinder and the third pressing cylinder retract to release the coil material.

[0010] As a further improvement, a translation guide rod is installed between the main pressing platform and the second pressing platform. The push rod of the fifth cylinder is connected with a sliding seat, and the sliding seat is slidably installed on the translation guide rod.

[0011] As a preferred technical solution, along the extension direction of the coil material, a coil material guiding frame is installed in front of the main pressing platform, and a guiding wheel is installed behind the second pressing platform.

[0012] A control method for a microphone assembly production line includes the following steps: Control the first rotary feeding mechanism to rotate at the first station, and distribute the first assembled workpiece to its feeding port by centrifugal force; At the second station, control two separating pins to alternately insert into the transfer array of the first assembled workpiece. The first assembled workpieces transferred between the two separating pins within one alternating cycle are grouped into one group; Set two spacing adjustment points at the third station, control the first translation mechanism to synchronously translate the spacing adjustment component from the first spacing adjustment point to the second spacing adjustment point, and transfer the first assembled workpiece from the third station to under the main pressing platform at the fourth station; When the first translation mechanism moves to the first pitch adjustment point, the workpiece between the partition board at the forefront and the two spacer pins is corresponding; when the partition board extends forward and inserts between the first assembled workpieces in the same group to increase the pitch between the workpieces, the spacer pin at the rear retracts, and the spacer pin at the front extends forward; when the translation mechanism moves to the second pitch adjustment point, the partition board at the rearmost moves under the main blank holding platform at the fourth station. At this time, the spacer pin at the rear extends forward, and the spacer pin at the front retracts. Meanwhile, control the first translation mechanism to translate the pitch adjustment mechanism to the first pitch adjustment point; After the first assembled workpiece is conveyed under the main blank holding platform at the fourth station, control the blank holding slider to press down. After the blank holding slider presses down in place, the pressing piece is completed, and the blank holding slider lifts up; At the fifth station, when the blank holding slider presses down, control the coil material clamping mechanism to release the coil material; when the blank holding slider lifts up, control the coil material clamping mechanism to clamp the coil material. The second translation mechanism drives the coil material clamping mechanism to move backward, pulls the coil material to move a set distance, and then resets; At the sixth station, control the second rotary loading mechanism to rotate, and distribute the second assembled workpieces to its loading port by centrifugal force; At the seventh station, two assembly points are set. The first assembly point is set at the end of the sliding path of the first ejector rod, and the second assembly point is arranged in parallel with the first assembly point and is on the sliding path of the first ejector rod; When the workpiece reaches the first assembly point, control the first ejector rod to extend forward to push the second assembled workpiece at the second assembly point into the first assembled workpiece at the first assembly point, and control the second ejector rod to act after the first ejector rod extends, and push the workpiece assembled at the first assembly point forward.

[0013] As a preferred technical solution, the distance between the first pitch adjustment point and the second pitch adjustment point is equal to the installation center distance between two adjacent partition boards.

[0014] As a preferred technical solution, the alternation period of the spacer pins is equal to the translation period of the pitch adjustment mechanism, and control the conveying speed of the first feeding mechanism so that the number of the first assembled workpieces conveyed in one alternation period or translation period is equal to the number of the first assembled workpieces in each group.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: The present invention is provided with a rotary feeding mechanism at the first station and the sixth station. The centrifugal force generated by the rotation of the turntable distributes the workpieces to the edge positions, enabling the workpieces to be fed in an orderly arrangement; at the grouping mechanism at the second station, through the alternating actions of two separating pins, the workpieces are separated into groups of several, realizing grouped assembly. Compared with single-piece assembly, the production efficiency is significantly improved; the spacing adjustment mechanism at the third station increases the spacing between the workpieces through a partition plate, and the workpieces are separated at a certain spacing, providing convenience for grouped processing; the pressing mechanism at the fourth station can punch gaskets from the coil material and directly drop them into the first assembled workpiece, reducing the steps of manual operation and further improving the assembly efficiency; at the fifth station, the translation mechanism and the coil material clamping mechanism cooperate in a coordinated manner. On the one hand, the coil material is pulled backward to facilitate pressing, and on the other hand, the stamped coil material is moved backward to facilitate waste collection; the pushing mechanism at the seventh station pushes the second assembled workpiece, that is, the three-component assembly, into the first assembled workpiece, that is, the housing. The two push rods cooperate in a coordinated manner. When the first push rod moves, the second push rod blocks the material on the outside. When the second push rod moves, the first push rod gets ready. The action frequencies of the two push rods are consistent and perfectly matched, realizing the assembly operation of the three-component assembly and the housing, and ensuring the smooth progress of the next production step of the microphone.

[0016] In the present invention, each process is combined into an automated microphone assembly production line. By setting matching action frequencies, precise moving distances, and careful control cycles between each process, the assembly of the microphone housing, gasket, and three-component assembly is realized. The entire control process is coordinated and orderly, with high control precision, fully automated operation, reduced manual operation, effectively ensuring the installation precision of the microphone, and significantly improving the assembly efficiency of the microphone. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the microphone assembly mechanism; Figure 2 It is a schematic diagram of the structure of an embodiment of the present invention; Figure 3 It is Figure 1 A schematic diagram of the structure of the spacing adjustment device in the middle; Figure 4 It is Figure 1 A schematic diagram of the structures of the pressing mechanism, the unwinding mechanism, the second translation mechanism, and the coil material clamping mechanism in it; Figure 5 is the process flow chart of the embodiment of the present invention; In the figure: 10 - aggregate tray; 11 - housing; 12 - diaphragm; 13 - electrode plate; 14 - connecting ring; 15 - plastic ring; 16 - gasket; 17 - coil stock; 18 - workbench surface; 19 - air pump; 20 - first turntable; 21 - turntable body; 22 - annular support frame; 23 - guide plate; 24 - baffle; 25 - support shaft; 26 - top cover; 27 - paddle; 31 - needle separator; 32 - first cylinder; 41 - partition; 410 - separating teeth; 42 - first mounting substrate; 43 - second cylinder; 44 - second mounting substrate; 45 - third cylinder; 51 - main pressuring platform; 511 - second pressuring cylinder; 52 - pressuring slider; 53 - conveying slot; 54 - gland; 55 - fourth cylinder; 56 - unwinding mechanism; 561 - guide frame; 562 - guide wheel; 57 - second pressuring platform; 571 - third pressuring cylinder; 58 - translation guide rod; 61 - fifth cylinder; 62 - mounting seat; 63 - first pressuring cylinder; 64 - sliding seat; 70 - second turntable; 81 - first ejector rod; 82 - second ejector rod; 83 - sixth cylinder; 84 - seventh cylinder; 91 - first feeding mechanism; 911 - conveying track; 912 - vibrator; 913 - traveling slot; 92 - second feeding mechanism; 93 - third feeding mechanism; 94 - fourth feeding mechanism. Specific embodiments

[0019] As Figure 1 shown, when assembling the microphone, the housing 11 and the diaphragm 12 form the first assembled workpiece, and the electrode plate 13, the connecting ring 14, and the plastic ring 15 constitute a three-component assembly as the second assembled workpiece. The coil stock is stamped by a press, and the stamped gaskets are placed into the housing, and then the three-component assembly is placed into the housing to complete the first assembly process of the microphone. Then, the circuit board is placed into the housing for final encapsulation.

[0020] In order to achieve the coordination and continuity of microphone assembly, the process flow of microphone assembly production is improved. The specific processes are shown in Figure 5 , and each process is realized by different mechanisms. According to the above process flow, a control method for realizing microphone assembly production is developed, which is specifically as follows: Set a first rotary loading mechanism at the first station, control the rotation of the first rotary loading mechanism, and distribute the first assembled workpiece to its loading port through centrifugal force; Set a grouping mechanism at the second station. The grouping mechanism includes two needle separators. Control the two needle separators to alternately insert into the conveying array of the first assembled workpiece. The first assembled workpieces conveyed between the two needle separators within one alternating cycle are grouped into one group; A spacing adjustment mechanism, a first translation mechanism, and two spacing adjustment points are provided at the third station. The first translation mechanism is controlled to synchronously translate the spacing adjustment mechanism from the first spacing adjustment point to the second spacing adjustment point, and to transfer the first assembled workpiece from the third station to below the main pressing platform at the fourth station. When the first translation mechanism moves to the first spacing adjustment point, the workpiece between the frontmost partition and the two spacer pins corresponds; when the partition extends forward and inserts between the first assembled workpieces in the same group to increase the spacing between the workpieces, the rear spacer pin retracts and the front spacer pin extends forward; when the translation mechanism moves to the second spacing adjustment point, the rearmost partition moves below the main pressing platform at the fourth station. At this time, the rear spacer pin extends forward and the front spacer pin retracts. At the same time, the first translation mechanism is controlled to translate the spacing adjustment mechanism to the first spacing adjustment point. A pressing mechanism is provided at the fourth station. The pressing mechanism includes a main pressing platform. After the first assembled workpiece is transferred below the main pressing platform at the fourth station, the pressing slider is controlled to press down. After the pressing slider presses down in place, the pressing is completed and the pressing slider lifts up. A second translation mechanism and a coil material clamping mechanism are provided at the fifth station. When the pressing slider presses down, the coil material clamping mechanism is controlled to release the coil material; when the pressing slider lifts up, the coil material clamping mechanism is controlled to clamp the coil material. The second translation mechanism drives the coil material clamping mechanism to move backward, pulls the coil material to move a set distance, and then resets. A second rotation mechanism is provided at the sixth station. The second rotation feeding mechanism is controlled to rotate, and the second assembled workpieces are distributed to its feeding port by centrifugal force. An assembling mechanism and two assembling points are provided at the seventh station. The first assembling point is set at the end of the sliding path of the first ejector rod. The second assembling point is arranged in parallel with the first assembling point and is on the sliding path of the first ejector rod. When the workpiece reaches the first assembling point, the first ejector rod is controlled to extend forward to push the second assembled workpiece at the second assembling point into the first assembled workpiece at the first assembling point. The second ejector rod is controlled to act after the first ejector rod extends, and to push the workpiece assembled at the first assembling point forward.

[0021] Based on the above technological process and control method, a microphone assembly production line is developed, as Figures 2 to 5 shown together: The first station corresponds to the first feeding process. A first rotary feeding mechanism is arranged at the first station. The first rotary feeding mechanism includes a first turntable 20. The first turntable 20 rotates and distributes the first assembled workpieces to its feeding port by centrifugal force. Specifically, the first rotary feeding mechanism includes a first turntable 20 driven by a first motor. There is a discharge port on one side of the first turntable 20. The first turntable 20 includes a turntable body 21. An annular support frame 22 is arranged on the outer side of the turntable body 21. A guide plate 23 extending from the circumference of the turntable body 21 to the discharge port is arranged at a position of the turntable body 21 close to the discharge port. A baffle 24 is arranged inside the guide plate 23. The baffle 24 and the end of the guide plate 23 form a discharge port together. A rotating shaft connected to the motor is arranged at the middle position of the turntable body 21. A support shaft 25 is penetrated through the middle position of the rotating shaft. The top end of the support shaft 25 extends out of the turntable body 21. A top cover 26 is installed at the top end of the support shaft 25. A paddle 27 is installed on the outer side of the top cover 26. When the turntable body 21 rotates, the paddle 27 distributes the workpieces to the edge part of the turntable body 21. The workpieces enter the discharge port formed by the combination of the baffle 24 and the end of the guide plate 23 and are conveyed to the next station.

[0022] The first assembled workpieces are conveyed from the first station to the second station through a first feeding mechanism 91. The first feeding mechanism 91 includes a conveying track 911. A vibrator 912 is installed below the conveying track 911. A traveling groove 913 convenient for single workpieces to pass through is arranged above the conveying track 911. The discharge port formed by the combination of the baffle 24 and the end of the guide plate 23 is docked with the traveling groove 913. Under the action of the vibrator 912, the workpieces enter the traveling groove 913 in sequence. The starting point of the first feeding mechanism is the feeding port of the first rotary feeding mechanism at the first station, and the end point is the first spacing adjustment point of the spacing adjustment mechanism at the third station.

[0023] The second station corresponds to the grouping process. A grouping mechanism is arranged at the second station. The grouping mechanism includes two separating pins 31. The separating pins 31 are installed on the push rods of a first cylinder 32. Each separating pin 31 is driven by a cylinder. The two separating pins 31 are alternately inserted into the conveying array of the first assembled workpieces. The first assembled workpieces conveyed between the two separating pins within an alternating cycle are divided into a group. In this embodiment, the number of workpieces in each group is 3.

[0024] The control method of the grouping process is as follows: Control the separating pin located upstream to retract, and the separating pin located downstream to extend to block the advancement of the first assembled workpieces. When the workpieces gather into a group of three, control the separating pin located upstream to extend to block the advancement of the first assembled workpieces, and the separating pin located downstream to retract. The first assembled workpieces divided into a group continue to advance.

[0025] The third station corresponds to the distance adjustment process. A spacing adjustment mechanism and two spacing adjustment points are arranged at the third station, as Figure 4As shown, the spacing adjustment mechanism includes multiple partition plates 41 with spaced teeth 410. The partition plates 41 are arranged along the conveying direction of the first assembled workpiece. In this embodiment, the number of partition plates 41 is three, and the tooth spacing of the partition plate located downstream in the conveying direction is greater than that of the partition plate located upstream. The mounting centers of the partition plates 41 are equally spaced and mounted on the first mounting substrate 42, that is, the distances between the mounting positions of several partition plates 41 are equal. The partition plates 41 are mounted on the first mounting substrate 42 at the mounting positions through fastening members. The first mounting substrate 42 is connected to the push rod of the second cylinder 43, and the moving direction of the push rod of the second cylinder 43 is perpendicular to the conveying direction of the first assembled workpiece.

[0026] Each partition plate 41 is separated by spaced teeth 410 into three grooves for accommodating workpieces. When the push rod of the second cylinder 43 is pushed out, the partition plate 41 is inserted into the workpiece, and the three workpieces are separated by the spaced teeth 410. The spaced teeth of the first partition plate are shallower to facilitate separating the workpieces. The tooth spacing of the second partition plate is slightly larger than that of the first partition plate to increase the spacing between the workpieces. The tooth spacing of the third partition plate is slightly larger than that of the second partition plate to increase the workpiece spacing to a suitable spacing.

[0027] The spaced teeth 410 are inserted between the first assembled workpieces of the same group when moving to the first spacing adjustment point through the first mounting substrate 42, and the spacing adjustment mechanism is translated to the second spacing adjustment point.

[0028] The first translation mechanism between the third station and the fourth station synchronously translates the spacing adjustment mechanism from the first spacing adjustment point to the second spacing adjustment point, and conveys the first assembled workpiece under the main pressing platform from the third station to the fourth station. The first translation mechanism includes a second mounting substrate 44. The first mounting substrate 42 is slidably mounted on the second mounting substrate 44. The first mounting substrate 42 is connected to the push rod of the third cylinder 45, and the moving direction of the push rod of the third cylinder 45 is parallel to the conveying direction of the first assembled workpiece.

[0029] The coordinated control between the spacing adjustment mechanism and the first translation mechanism is as follows: The first mounting substrate 42 moves to the first spacing adjustment point, corresponding to the workpiece between the frontmost partition 41 and the two spacer pins 31; control the push rod of the second cylinder 43 to push out, driving the first mounting substrate 42 to push out, and the partition 41 is inserted into the workpiece. The three partitions gradually increase the spacing between the workpieces. At this time, the spacer pins at the rear retract, and the spacer pins at the front extend forward; then control the third cylinder 45 to start, move the first mounting substrate 42 from the first spacing adjustment point to the second spacing adjustment point, and move the workpieces of the three partitions 41 downstream. The workpiece of the partition 41 at the most downstream moves under the main pressing platform 51 of the fourth station. At this time, the spacer pins at the rear extend forward, and the spacer pins at the front retract; control the push rod of the second cylinder 43 to retract, and then control the push rod of the third cylinder 45 to retract. The third cylinder 45 moves the first mounting substrate 42 from the second spacing adjustment point to the first spacing adjustment point.

[0030] To ensure the coordination of each process, the distance between the first spacing adjustment point and the second spacing adjustment point is equal to the center distance of the installation positions between two adjacent partitions 41.

[0031] The alternating cycle of the spacer pins 31 is equal to the translation cycle of the spacing adjustment mechanism. When conveying the workpieces, control the conveying speed of the first feeding mechanism 91 so that the number of the first assembled workpieces conveyed within one alternating cycle or translation cycle is equal to the number of each group of the first assembled workpieces.

[0032] At the end of the previous translation cycle, the workpiece of the first partition moves downstream by a set spacing; after the start of the new translation cycle, the second partition is inserted between the workpieces translated by the first partition in the previous translation cycle, the third partition is inserted between the workpieces translated by the second partition in the previous translation cycle, and the workpiece of the third partition in the previous translation cycle is translated under the main pressing platform 51 of the fourth station, ready for pressing.

[0033] The fourth station corresponds to the pressing process and the material discharging process. A pressing mechanism and a material unwinding mechanism 56 equipped with a coil are arranged at the fourth station. The main pressing platform 51 is an important part of the pressing mechanism. A pressing slider 52 is provided above the main pressing platform 51. The conveying groove 53 for driving the first assembled workpiece is located under the main pressing platform 51. The coil 17 passes through between the main pressing platform 51 and the conveying groove 53. Specifically, a pressing cover 54 is provided above the main pressing platform 51. A fourth cylinder 55 is installed on the pressing cover 54. The pressing slider 52 is installed on the push rod of the fourth cylinder 55. The push rod of the fourth cylinder 55 drives the pressing slider 52 to press down or rise. A stamping die is installed on the main pressing platform 51 and the pressing slider 52. When the pressing slider 52 presses down, a gasket 16 is stamped from the coil 17 and falls into the housing 11.

[0034] The unwinding mechanism 56 is the main execution equipment for the unwinding process. The unwinding mechanism 56 includes an unwinding shaft driven by a motor, and the coil material 17 is installed on the unwinding shaft. Along the extension direction of the coil material 17, a coil material guiding frame 561 is installed in front of the main pressing platform 51.

[0035] After the first assembled workpiece is conveyed below the main pressing platform 51 at the fourth station, the pressing slider 52 is controlled to press down, punching out the gasket 16 from the coil material 17 and falling into the housing 11 of the first assembled workpiece. After the pressing slider 52 presses down in place, the pressing is completed, and the pressing slider 52 rises.

[0036] On one side of the main pressing platform 51, there is a second pressing cylinder 511. On the other side of the main pressing platform 51, there is a second pressing platform 57. A third pressing cylinder 571 is installed on the second pressing platform 57. The coil material 17 passes through between the second pressing cylinder 511 and the main pressing platform 51, and between the third pressing cylinder 571 and the second pressing platform 57 in sequence. A guiding wheel 562 is installed behind the second pressing platform 57.

[0037] When the pressing slider 52 presses down, the push rods of the second pressing cylinder 511 and the third pressing cylinder 571 press down and clamp the coil material 17. When the pressing slider 52 rises, the push rods of the second pressing cylinder 511 and the third pressing cylinder 571 retract, releasing the coil material 17.

[0038] The fifth station corresponds to the waste collection process. A second translation mechanism and a coil material clamping mechanism are set at the fifth station. When the pressing slider 52 presses down, the coil material clamping mechanism is controlled to release the coil material 17. When the pressing slider 52 rises, the coil material clamping mechanism is controlled to clamp the coil material 17. The second translation mechanism drives the coil material clamping mechanism to move backward, pulling the coil material 17 through the main pressing platform 51. The coil material 17 left after the rear-end punching is extended outward through the guiding wheel 562 and collected.

[0039] The second translation mechanism includes a fifth cylinder 61. The coil material clamping mechanism is connected to the push rod of the fifth cylinder 61. The moving direction of the push rod of the fifth cylinder 61 is parallel to the conveying direction of the coil material 17. The coil material clamping mechanism includes a mounting seat 62 connected to the push rod of the fifth cylinder 61. A first pressing cylinder 63 is arranged on the mounting seat 62. The coil material 17 passes through between the mounting seat 62 and the first pressing cylinder 63.

[0040] A translation guide rod 58 is installed between the main pressing platform 51 and the second pressing platform 57. The push rod of the fifth cylinder 61 is connected with a sliding seat 64. The sliding seat 64 is slidably installed on the translation guide rod 58. The mounting seat 62 is connected to the sliding seat 64 through a connecting rod in the same direction as the translation guide rod 58.

[0041] The coordination control method between the fourth station and the fifth station is as follows: When the workpiece enters the transfer groove 53 under the main blank holding platform 51, when the blank holding slider 52 presses down, the push rods of the second blank holding cylinder 511 and the third blank holding cylinder 571 press down and clamp the coil material 17, and the push rod of the first blank holding cylinder 63 retracts; after the blank holding slider 52 presses down in place, stamping is completed and the blank holding slider 52 rises; when the blank holding slider 52 rises, the push rods of the second blank holding cylinder 511 and the third blank holding cylinder 571 retract, releasing the coil material 17, the push rod of the first blank holding cylinder 63 extends to clamp the coil material 17, the push rod of the fifth cylinder 61 extends, driving the mounting seat 62 and the first blank holding cylinder 63 to move backward, pulling the coil material 17 to move a set distance, and the coil material 17 left after the stamping at the rear end extends outward through the guide wheel 562 and is collected. Subsequently, the push rod of the fifth cylinder 61 retracts, the mounting seat 62 resets, and the push rod of the first blank holding cylinder 63 retracts to release the coil material; the above actions are repeated.

[0042] Preferably, the set distance is equal to the length occupied by the gasket on the coil material. If the length occupied by a gasket on the coil material is one grid, the fifth cylinder 61 drives the coil material clamping mechanism to pull the coil material to move one grid.

[0043] The sixth station corresponds to the second loading process. A second rotary loading mechanism is provided at the sixth station. The structure of the second rotary loading mechanism is the same as that of the first rotary loading mechanism, and the position of the discharge port of the second rotary loading is slightly adjusted. The second rotary loading mechanism includes a second turntable 70, and the second turntable 70 rotates to distribute the second assembled workpiece to its loading port by centrifugal force.

[0044] The seventh station corresponds to the pushing process. An assembling mechanism and two assembling points are provided at the seventh station.

[0045] A second feeding mechanism 92 is provided between the fourth station and the sixth station. The starting point of the second feeding mechanism 92 is the discharge port of the main blank holding platform 51 at the fourth station, and the end point is the first assembling point at the seventh station.

[0046] A third feeding mechanism 93 is provided between the sixth station and the seventh station. The starting point of the third feeding mechanism 93 is the loading port of the second rotary loading mechanism, and the end point is the second assembling point at the seventh station.

[0047] The structures of the second feeding mechanism 92 and the third feeding mechanism 93 are substantially the same as the structure of the first feeding mechanism 91, and only the direction of the transfer track needs to be adjusted.

[0048] The second feeding mechanism 92 transfers the first assembled workpiece loaded with the gasket 16 at the fourth station to the first assembling point at the seventh station, and the third feeding mechanism 93 transfers the second assembled workpiece to the second assembling point at the seventh station.

[0049] The assembly mechanism includes a first ejector rod 81 and a second ejector rod 82 arranged in parallel. The first assembly point is set at the end of the sliding path of the first ejector rod 81. The second assembly point is arranged in parallel with the first assembly point and is located on the sliding path of the first ejector rod 81.

[0050] The first ejector rod 81 and the second ejector rod 82 are respectively driven by a sixth cylinder 83 and a seventh cylinder 84 to perform telescopic movements. The first ejector rod 81 is installed on the side of the connecting seat at the top of the push rod of the sixth cylinder 83. The second ejector rod 82 is installed on the side of the connecting seat at the top of the push rod of the seventh cylinder 84 close to the first ejector rod 81, so that the first ejector rod 81 and the second ejector rod 82 can be arranged side by side.

[0051] Preferably, a photoelectric switch is installed at the first assembly point. When the first assembly workpiece reaches the first assembly point, the photoelectric switch acts. At this time, the second assembly workpiece reaches the second assembly point and is ready to be arranged and passed through. Control the first ejector rod 81 to extend forward to push the second assembly workpiece at the second assembly point into the first assembly workpiece at the first assembly point. Under the action of the vibrator of the feeding mechanism, the assembled workpiece moves forward and moves out of the first assembly point. Control the second ejector rod 82 to act after the first ejector rod 81 extends, and push the workpiece assembled at the first assembly point forward. The action frequencies of the first ejector rod 81 and the second ejector rod 82 are consistent to ensure the continuous progress of the material pushing process.

[0052] The ejected workpiece enters the fourth feeding mechanism 94 arranged at the rear end of the seventh station. The starting point of the fourth feeding mechanism 94 is the discharge port of the first assembly point of the seventh station, and the end point is the aggregate tray 10. The fourth feeding mechanism 94 finally conveys the workpiece to the aggregate tray 10 for collection.

[0053] In this embodiment, the first rotary feeding mechanism, the grouping mechanism, the spacing adjusting mechanism, the tablet pressing mechanism, the second translation mechanism, the coil clamping mechanism, the second rotary feeding mechanism, the assembly mechanism, the first feeding mechanism, the second feeding mechanism, the third feeding mechanism, and the fourth feeding mechanism together constitute the assembly production line of the microphone, which can realize the continuous, highly coordinated and fully automated production of the microphone. The assembly production line of the microphone also includes a horizontal workbench surface 18, and the above structures are installed on the workbench surface 18 for easy operation. An air pump 19 is also installed on the workbench surface 18 to provide a power air source for each mechanism.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A microphone assembly production line, characterized in that, Including: A first rotary loading mechanism located at the first station, the first rotary loading mechanism includes a first turntable driven by a first motor, and a discharge port is provided on one side of the first turntable; A grouping mechanism located at the second station, the grouping mechanism includes two separating pins for grouping workpieces, and the separating pins are installed on the push rod of a first cylinder; A pitch adjusting mechanism located at the third station, the pitch adjusting mechanism includes a plurality of partition plates with separating teeth, the partition plates are arranged along the conveying direction of the first assembled workpiece, and the separating tooth pitch of the partition plate located downstream in the conveying direction is greater than that of the partition plate located upstream, and the mounting centers of the partition plates are equidistantly installed on a first mounting substrate, and the first mounting substrate is connected to the push rod of a second cylinder; A first translation mechanism arranged between the third station and the fourth station, including a second mounting substrate, the first mounting substrate is slidably installed on the second mounting substrate, the first mounting substrate is connected to the push rod of a third cylinder, and the moving direction of the push rod of the third cylinder is parallel to the conveying direction of the first assembled workpiece; A pressing mechanism and an unwinding mechanism with a coil installed located at the fourth station, the pressing mechanism includes a main pressing platform, a pressing cover is provided above the main pressing platform, a fourth cylinder is installed on the pressing cover, and a pressing slider is installed on the push rod of the fourth cylinder; the unwinding mechanism includes a feeding shaft driven by a motor, and the coil is installed on the feeding shaft; A second translation mechanism and a coil clamping mechanism located at the fifth station, the second translation mechanism includes a fifth cylinder, the coil clamping mechanism is connected to the push rod of the fifth cylinder, the moving direction of the push rod of the fifth cylinder is parallel to the conveying direction of the coil, the coil clamping mechanism includes a mounting seat connected to the push rod of the fifth cylinder, and a first pressing cylinder is arranged on the mounting seat, and the coil passes through between the mounting seat and the first pressing cylinder; A second rotary loading mechanism located at the sixth station, the second rotary loading mechanism includes a second turntable driven by a second motor, and a discharge port is provided on one side of the second turntable; An assembling mechanism located at the seventh station, the assembling mechanism includes a first ejector rod and a second ejector rod arranged in parallel, and the first ejector rod and the second ejector rod are respectively driven by a sixth cylinder and a seventh cylinder.

2. The microphone assembly production line according to claim 1, wherein Also including: A first feeding mechanism arranged between the first station, the second station and the third station; A second feeding mechanism arranged between the fourth station and the sixth station; A third feeding mechanism arranged between the sixth station and the seventh station; A fourth feeding mechanism arranged at the rear end of the seventh station.

3. The microphone assembly production line according to claim 2, wherein: The first feeding mechanism, the second feeding mechanism, the third feeding mechanism and the fourth mechanism all include a conveying track, a vibrator is installed below the conveying track, and a traveling groove for facilitating the passage of a single workpiece is provided above the conveying track.

4. The microphone assembly production line according to claim 3, wherein: The first turntable and the second turntable both include a turntable body, an annular support frame is provided on the outer side of the turntable body, a guide plate extending from the circumference of the turntable body to the discharge port is provided on the position of the turntable body near the discharge port, a baffle is provided on the inner side of the guide plate, and the ends of the baffle and the guide plate are connected with the travel groove; a rotating shaft connected to the motor transmission is provided in the middle position of the turntable body, a support shaft is passed through the middle position of the rotating shaft, the top end of the support shaft extends out of the turntable body, a top cover is installed on the top end of the support shaft, and a paddle is installed on the outer side of the top cover, and the paddle shifts the workpiece in the turntable body to the edge of the turntable body.

5. The microphone assembly production line according to claim 2, wherein: A second pressing cylinder is provided on one side of the main pressing platform, and a second pressing platform is provided on the other side of the main pressing platform. A third pressing cylinder is installed on the second pressing platform. The coil passes through between the second pressing cylinder and the main pressing platform, between the first pressing cylinder and the mounting seat, and between the third pressing cylinder and the second pressing platform in sequence. When the pressing slider presses the material downward, the push rods of the second pressing cylinder and the third pressing cylinder press down and compress the coil. When the pressing slider rises, the push rods of the second pressing cylinder and the third pressing cylinder retract to release the coil.

6. The microphone assembly production line according to claim 5, characterized in that: A translation guide rod is installed between the main material pressing platform and the second material pressing platform, and a push rod of the fifth cylinder is connected with a slide seat, and the slide seat is slidably installed on the translation guide rod.

7. The microphone assembly production line according to claim 5, characterized in that: Along the extending direction of the coil, a coil guide frame is installed in front of the main pressing platform, and a guide wheel is installed behind the second pressing platform.

8. A control method for a microphone assembly production line, characterized in that: The microphone assembly production line according to any one of claims 2 to 7 is applied, comprising the following steps: Controlling the rotation of the first rotary feeding mechanism at the first station to distribute the first assembly workpiece to its feeding port by centrifugal force; At the second station, two spacer needles are controlled to be alternately inserted into the conveying array of the first assembly workpieces, and the first assembly workpieces conveyed between the two spacer needles in one alternating cycle are grouped into one group; Two spacing adjustment points are set at the third station, and the first translation mechanism is controlled to synchronously translate the spacing adjustment component from the first spacing adjustment point to the second spacing adjustment point, and the first assembly workpiece is transferred from the third station to below the main pressing platform of the fourth station; When the first translation mechanism moves to the first spacing adjustment point, the partition located at the frontmost part corresponds to the workpiece between the two spacer needles; when the partition extends forward and is inserted between the first assembled workpieces of the same group to increase the spacing between the workpieces, the spacer needles located at the rear are retracted, and the spacer needles located at the front are extended forward; when the translation mechanism moves to the second spacing adjustment point, the partition located at the rearmost part moves to below the main pressing platform of the fourth station, at this time, the spacer needles located at the rear are extended forward, and the spacer needles located at the front are retracted, and at the same time, the first translation mechanism is controlled to translate the spacing adjustment mechanism to the first spacing adjustment point; When the first assembled workpiece is transferred to the bottom of the main pressing platform of the fourth station, the pressing slider is controlled to press down. After the pressing slider is pressed down to the right position, the tableting is completed and the pressing slider is lifted; At the fifth station, when the blank holder slider presses down, control the coil clamping mechanism to release the coil; when the blank holder slider rises, control the coil clamping mechanism to clamp the coil, and the second translation mechanism drives the coil clamping mechanism to move backward, pulling the coil to move a set distance, and then reset; At the sixth station, control the second rotary feeding mechanism to rotate, and distribute the second assembled workpiece to its feeding port by centrifugal force; At the seventh station, two assembly points are set. The first assembly point is set at the end of the sliding path of the first ejector rod, and the second assembly point is arranged side by side with the first assembly point and is on the sliding path of the first ejector rod; When the workpiece reaches the first assembly point, control the first ejector rod to extend forward to push the second assembled workpiece at the second assembly point into the first assembled workpiece at the first assembly point, and control the second ejector rod to act after the first ejector rod extends, and push the workpiece assembled at the first assembly point forward.

9. The control method of a microphone assembly production line according to claim 8, characterized in that: The distance between the first pitch adjustment point and the second pitch adjustment point is equal to the installation center distance between adjacent two partitions.

10. The control method of a microphone assembly production line according to claim 8, characterized in that: The alternating cycle of the spacer pins is equal to the translation cycle of the pitch adjustment mechanism, and control the conveying speed of the first feeding mechanism so that the number of the first assembled workpieces conveyed in one alternating cycle or translation cycle is equal to the number of each group of the first assembled workpieces.

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