Airtightness testing device for a loudspeaker unit and a method of testing

Abstract

The application provides a speaker unit airtightness testing device and a corresponding testing method, which are mainly composed of a lower base, an upper casing, two storage parts, a transfer part, a bearing rotating part, two code scanning detection parts, two airtightness testing parts and a carrying part. The two storage parts are used to store the speaker units to be tested and the qualified speaker units, and are also used as the first intermediate storage. The carrying part is used to carry the speaker units on the storage parts, the transfer part and the bearing rotating part in a cycle. Then, the two code scanning detection parts and the two airtightness testing parts are used to scan and record the codes of the speaker units and detect the airtightness of the speaker units. Thus, the speaker units that pass the code scanning and airtightness testing are obtained, and the automatic testing process is completed. The application occupies a small space, realizes the automatic and cyclic scanning and airtightness testing of the speaker units, and improves the detection precision and efficiency.

Description

Technical Field

[0001] This invention relates to the field of loudspeaker testing technology, and in particular to a device and method for testing the airtightness of a loudspeaker unit. Background Technology

[0002] Air tightness testing of loudspeaker drivers is one of the factory requirements for loudspeaker drivers. Current loudspeaker testing devices are relatively mature, but they can only test one or two drivers at a time, resulting in low testing efficiency. Patent document 1 discloses a multi-station loudspeaker air tightness testing fixture that can test multiple loudspeaker drivers at once. However, this structure is a separate testing part and still requires manual loading and unloading. Moreover, currently, loudspeaker drivers are being equipped with QR code structures for information entry and traceability during the production process. Such structures can no longer meet the ever-changing needs of driver production. How to achieve automatic air tightness testing through the structure of the production line is a technical problem that needs to be solved.

[0003] Patent document 1CN202011604838.3. Summary of the Invention

[0004] To avoid the shortcomings of existing technologies, this invention provides a device and method for testing the airtightness of a loudspeaker unit, enabling an automated and cyclical testing process and improving testing accuracy and efficiency.

[0005] The present invention solves the technical problem by adopting the following technical solution: The present invention provides a speaker unit airtightness testing device, comprising: a storage section, two storage sections arranged side by side, each storage section including a storage support and a storage tray disposed on the storage support, one storage tray being used to place a speaker unit to be tested, and the other storage tray being used to place a speaker unit that has passed the test.

[0006] The transfer section is located on one side of the storage section. The transfer section includes a transfer bracket, a transfer drive assembly, an intermediate good product container, and an intermediate test product container. The transfer drive assembly is mounted on the transfer bracket and is used to drive the intermediate good product container and the intermediate test product container to translate simultaneously. The transfer drive assembly can also drive the intermediate test product container to rotate. The intermediate good product container is used to hold the speaker unit that has passed the test, and the intermediate test product container is used to hold the speaker unit to be tested.

[0007] A rotating bearing unit is disposed on one side of the intermediate transfer unit. The rotating bearing unit includes a rotating bearing drive assembly, a rotating disk surface, and fixtures. The rotating bearing drive assembly is used to drive the rotating disk surface to rotate. Multiple fixtures are arranged around the rotating disk surface and are used to place speaker units.

[0008] The two scanning detection units are arranged on opposite sides of the rotating disk and correspond to the position of the fixture. The scanning detection units are used to scan the speaker units in the corresponding fixture and exclude speaker units that fail the scanning or airtightness test.

[0009] An airtightness testing unit is provided. Two airtightness testing units are arranged on one side of the rotating disk and between the two barcode scanning and detection units. The airtightness testing units correspond to the positions of the fixtures. The airtightness testing units are used to perform airtightness testing on the speaker units in the corresponding fixtures.

[0010] The transport unit is horizontally positioned above the storage unit and the rotating bearing unit. The transport unit includes a horizontal transport drive assembly, a loading transport assembly, and a finished product transport assembly. The horizontal transport drive assembly is used to simultaneously drive the loading transport assembly and the finished product transport assembly to move horizontally. The loading transport assembly is used to transport multiple speaker units in one storage tray to an intermediate test product container and to transport multiple speaker units in an intermediate good product container to another storage tray. The finished product transport assembly is used to transport multiple speaker units in an intermediate test product container to a fixture and to transport multiple speaker units in a fixture to an intermediate good product container.

[0011] In several embodiments, the lateral transport drive assembly includes a lateral transport bracket, a transport drive motor, a synchronous pulley, and a synchronous belt. The transport drive motor is mounted on the lateral transport bracket and is used to drive the movement of the synchronous pulley. The synchronous belt is mounted on the synchronous pulley and rotates accordingly.

[0012] In several embodiments, the feeding and conveying assembly includes a feeding and conveying frame, a feeding cylinder mounted on the feeding and conveying frame, a feeding lifting frame, and two sets of feeding nozzles. The feeding and conveying frame is clamped onto a synchronous belt and moves laterally with the synchronous belt. The feeding cylinder drives the longitudinal lifting movement of the feeding lifting frame. The two sets of feeding nozzles are arranged side by side and spaced apart on the feeding lifting frame. Each set of feeding nozzles includes multiple horizontally arranged feeding nozzles, and each feeding nozzle is used to adsorb a single speaker unit.

[0013] In several embodiments, the finished product handling assembly includes a finished product handling frame, a finished product cylinder mounted on the finished product handling frame, a finished product lifting frame, and two sets of finished product suction nozzles. The finished product handling frame is clamped onto a synchronous belt and moves laterally with the synchronous belt. The finished product cylinder is used to drive the longitudinal lifting movement of the finished product lifting frame. The two sets of finished product suction nozzles are arranged side by side and spaced apart on the finished product lifting frame. Each set of finished product suction nozzles includes multiple vertically arranged finished product suction nozzles, and each finished product suction nozzle is used to adsorb a single speaker unit.

[0014] In several embodiments, the transfer drive assembly includes a translational motion module, a rotational motion module, and a transfer base mounted on a transfer bracket, wherein the transfer base performs a horizontal translational motion with the translational motion module;

[0015] The rotation motion module is mounted on the transfer base and is used to drive the intermediate test sample container to rotate from 0 to 360°, with each rotation being 90°.

[0016] In several embodiments, the intermediate test object container is provided with a single row of multiple receiving cavities, each of which is used to place a single speaker unit to be tested.

[0017] In several embodiments, one of the barcode scanning detection units includes a first barcode scanning bracket, a first barcode scanner, a rotating body, a suction cup body, a rotation drive module, a lifting cylinder, a translation cylinder, and the first barcode scanning drive module, all mounted on the first barcode scanning bracket.

[0018] The first barcode scanning drive module is used to drive the barcode scanner to make a horizontal translational movement, and the barcode scanner is used to scan and detect the speaker unit inside the fixture.

[0019] The rotating body is connected to the rotation drive module and rotates with the rotation drive module. Multiple suction cups are evenly distributed on the rotating body, and the suction cups are used to adsorb speaker units.

[0020] The lifting cylinder is used to drive the rotation drive module to make a vertical lifting motion;

[0021] The translation cylinder is used to drive the rotation drive module to make a horizontal translation movement perpendicular to the direction of movement of the barcode scanner.

[0022] In several embodiments, another of the barcode scanning detection units includes: a second barcode scanning bracket, a movable base, a second barcode scanner, a second barcode scanning drive module, a suction cup bracket, a suction cup drive module, and a suction cup body;

[0023] The movable seat is mounted on the second barcode scanner bracket, the second barcode scanner is mounted on the movable seat, and the second barcode scanning drive module is mounted on the second barcode scanner bracket and used to drive the movable seat to move horizontally.

[0024] The suction cup drive module is mounted on the movable base and is used to drive the horizontal translation movement of the suction cup bracket. The suction cup bracket is used to install a single suction cup body, and the suction cup body is used to adsorb a single speaker unit.

[0025] In several embodiments, the airtightness testing unit includes an airtight mounting bracket and an upper drive unit, an upper movable frame, a test head, a lower movable part, and a limiting frame disposed on the airtight mounting bracket;

[0026] The upper drive unit is used to drive the upper movable frame to make a vertical lifting and lowering movement. The test head is set on the upper movable frame and corresponds to the speaker unit in the fixture.

[0027] The lower movable part is used to drive the limiting frame to make a vertical lifting and lowering movement, and the limiting frame is used to press the fixture.

[0028] The present invention also provides a corresponding testing method, which uses the above-mentioned testing device to perform the test, and mainly includes the following steps in sequence: Step 1: Place the speaker unit to be tested in the storage tray, and place the storage tray in a storage section at the outermost position for later use, and set up an empty storage tray in the adjacent storage section.

[0029] Step 2: The lateral transport drive component moves the loading and transport component to move the speaker unit to be tested from a storage tray in a storage section to an adjacent empty storage tray.

[0030] Step 3: The lateral transport drive component drives the loading and transport component to move, transporting the speaker unit in the empty storage tray in Step 2 to the transfer section, and repeating the action of Step 2 at the same time.

[0031] Step 4: The horizontal transport drive assembly simultaneously drives the finished product transport assembly to transport the speaker units in the transfer section to a single fixture. The load-bearing rotation drive assembly drives the rotating disk to rotate, rotating the fixture to a position below a barcode scanning and detection unit. The barcode scanning and detection unit scans and records the barcodes of the speaker units in the fixture and removes speaker units that cannot be scanned.

[0032] Step 5: The rotating drive assembly continues to drive the rotating disk to rotate, rotating the fixture from Step 4 to below the airtightness testing section. The fixture is then passed through the two airtightness testing sections in sequence to perform two airtightness tests, and the position information of the speaker unit that fails the test is recorded.

[0033] Step Six: The rotating drive assembly continues to drive the rotating disk to rotate, rotating the fixture from Step Four to below another barcode scanning and detection unit. The barcode scanning and detection unit performs a second barcode scanning test on the speaker unit inside the fixture. At the same time, the speaker units that fail the barcode scanning test and the airtightness test are removed. Then, the fixture is rotated back to its original position.

[0034] Step 7: The lateral transport drive assembly drives the finished product transport assembly, which transports the qualified speaker units in the fixture from Step 6 to the transfer section. The loading transport assembly then transports the qualified speaker units in the transfer section to the adjacent storage section for storage.

[0035] Step 8: Repeat the above steps.

[0036] The beneficial effects of this invention are as follows:

[0037] This invention employs a workstation structure, enabling automated handling, barcode scanning, and airtightness testing of individual speaker units within a single workstation. It also automatically distinguishes between qualified and unqualified products and handles their transport and storage. Only manual placement of the loading tray is required to achieve cyclical automated testing, significantly improving testing efficiency. Furthermore, the placement of the transfer unit makes the overall structure more compact, reducing space requirements. The dual barcode scanning and dual airtightness testing processes ensure testing accuracy and guarantee the accuracy and usability of the scanned information. Attached Figure Description

[0038] The accompanying drawings described herein are for illustrative purposes only and do not represent all possible implementations, nor should they be considered as limiting the scope of the invention.

[0039] Figure 1 The overall structure of a loudspeaker unit airtightness testing device in one embodiment is schematically shown.

[0040] Figure 2 schematically shown Figure 1 The structure of the part, excluding the upper casing;

[0041] Figure 3 schematically shown Figure 2 Top-down planar structure;

[0042] Figure 4 schematically shown Figure 2 The overall structure of the central storage section;

[0043] Figure 5 schematically shown Figure 2 The overall structure of the central handling section;

[0044] Figure 6 schematically shown Figure 5 Enlarged structure of the finished product handling assembly;

[0045] Figure 7 schematically shown Figure 2 The overall structure of the transfer section;

[0046] Figure 8 schematically shown Figure 2 The barcode scanning and detection unit is integrated with the rotating disk and fixture in a single structure.

[0047] Figure 9 schematically shown Figure 8 Another perspective on the structure;

[0048] Figure 10 schematically shown Figure 2 Another barcode scanning and detection unit combines the rotating disk and fixture into a single structure.

[0049] Figure 11 schematically shown Figure 2 The airtightness testing section is integrated with the rotating disc and fixture in a single structure. Detailed Implementation

[0050] The embodiments of the present invention will be described in detail below. In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0051] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0052] The terminology used herein is intended to explain the embodiments and is not intended to limit and / or restrict the invention.

[0053] For example, expressions such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "relative", "front, back, left and right" indicate relative or absolute configuration. They not only indicate such a configuration in a strict sense, but also indicate a state of relative displacement with tolerance, or with an angle or distance that can achieve the same level of functionality.

[0054] Example 1

[0055] like Figures 1-3As shown, the loudspeaker unit airtightness testing device in this embodiment mainly consists of a lower base 1, an upper housing 2, two storage sections 10, a transfer section 20, a bearing rotation section 30, two barcode scanning and detection sections 40a and 40b, two airtightness testing sections 50, and a transport section 60. The two storage sections 10 store the loudspeaker units to be tested and those that have passed the test, respectively, and also serve as an intermediate first transfer section. The transport section 60 cyclically transports the loudspeaker units on the storage sections 10, transfer section 20, and bearing rotation section 30. Then, the two barcode scanning and detection sections 40a and two airtightness testing sections 50 scan and input the barcodes of the loudspeaker units and perform airtightness testing, thereby obtaining loudspeaker units that pass both the barcode scanning and airtightness tests, completing the automatic testing process.

[0056] The lower base 1 serves as a support and housing, while the upper housing 2 is equipped with a transparent window for observation and protection.

[0057] Specifically, such as Figure 4 As shown, the storage section 10 in this embodiment is composed of a storage support 11 and a storage tray 12 disposed on the storage support 11. The storage tray 12 in one storage section 10 is used to place the speaker unit to be tested, and the storage tray 12 in another storage section is used to place the speaker unit that has passed the test, and at the same time, it can also place the speaker unit to be tested from the previous one. The structure of the storage section 10 is a common structure in the field, and no further limitation is made here.

[0058] And, such as Figures 5-6 As shown, the conveying unit 60 is horizontally positioned above the storage unit 10 and the bearing rotating unit 30. The conveying unit 60 includes a horizontal conveying drive assembly 61, a loading conveying assembly 62, and a finished product conveying assembly 63. The horizontal conveying drive assembly 61 is used to simultaneously drive the loading conveying assembly 62 and the finished product conveying assembly 63 to move horizontally. The loading conveying assembly 62 is used to move multiple speaker units in one storage tray 12 to the storage tray 12, and simultaneously move the speaker units in the corresponding storage tray 12 to the intermediate test product container 23, and move multiple speaker units in the intermediate good product container 22 to another storage tray 12. The finished product conveying assembly 63 is used to move multiple speaker units in the intermediate test product container 23 to a fixture 32, and move multiple speaker units in the fixture 32 to the intermediate good product container 22.

[0059] The transverse transport drive assembly 61 includes a transverse transport bracket 611, a transport drive motor 612, a synchronous pulley 613, and a synchronous belt. The transport drive motor 612 is mounted on the transverse transport bracket 611 and drives the synchronous pulley 613. The synchronous belt is mounted on the synchronous pulley 613 and rotates accordingly. That is, the structure of the synchronous belt is used to achieve translational movement, which is fast and stable.

[0060] The loading and handling assembly 62 includes a loading and handling frame 621, a loading cylinder 622 mounted on the loading and handling frame 621, a loading lifting frame 623, and two sets of loading suction nozzles 624. The loading and handling frame 621 is clamped onto the synchronous belt and moves laterally with the synchronous belt. The loading cylinder 622 drives the longitudinal lifting movement of the loading lifting frame 623. The two sets of loading suction nozzles 624 are arranged side by side and spaced apart on the loading lifting frame 623. Each set of loading suction nozzles 624 includes four horizontally arranged loading suction nozzles 6241. Each loading suction nozzle 6241 is used to pick up a single speaker unit. The storage tray 12 is a conventional and commonly used component. Due to the structural limitations of the storage tray 12 and the limitations of the program, the loading suction nozzles 624 are arranged horizontally to better handle the speaker units in a single pick-up mode of four speaker units at a time, avoiding jamming.

[0061] The finished product handling assembly 63 includes a finished product handling frame 631, a finished product cylinder 632 mounted on the finished product handling frame 631, a finished product lifting frame 633, and two sets of finished product suction nozzles 634. The finished product handling frame 631 is clamped on the synchronous belt and moves laterally with the synchronous belt. The finished product cylinder 632 drives the longitudinal lifting frame 633. The two sets of finished product suction nozzles 634 are arranged side by side and spaced apart on the finished product lifting frame 633. Each set of finished product suction nozzles 634 includes four vertically arranged finished product suction nozzles 6341. Each finished product suction nozzle 6341 is used to adsorb a single speaker unit. That is, the finished product suction nozzles 634 and the feeding suction nozzles 624 form a cross-shaped structure when viewed from above. Due to the limited space of the rotating part 30, the finished product suction nozzles 634 can only be arranged vertically to avoid obstructing or covering the platform of the rotating part 30, leaving space for the installation of the detection part assembly.

[0062] And, such as Figure 7As shown, since the feeding nozzle assembly 624 and the finished product nozzle assembly 634 are arranged in a vertical direction, a transfer section 20 is configured on one side of the storage section 10. The transfer section 20 includes a transfer bracket 21, a transfer drive assembly, an intermediate good product container 22, and an intermediate test product container 23. The transfer drive assembly is mounted on the transfer bracket 21. The transfer drive assembly is used to drive the intermediate good product container 22 and the intermediate test product container 23 to translate simultaneously. The transfer drive assembly can also drive the intermediate test product container 23 to rotate. The intermediate good product container 22 is used to place the speaker unit that has passed the test, and the intermediate test product container 23 is used to place the speaker unit to be tested.

[0063] The transfer drive assembly includes a translational motion module 24, a rotational motion module 25, and a transfer base 26 mounted on the transfer bracket 21. The transfer base 26 moves horizontally with the translational motion module 24. The translational module 24 can be a synchronous belt structure driven by a motor.

[0064] The translation module 24 drives the intermediate good product container 22 and the intermediate test product container 23 to change their positions. The translation module 24 realizes vertical translation movement, which corresponds to the position of the finished product handling component 63.

[0065] The rotating motion module 25 is set on the transfer base 26. The rotating motion module 25 is driven by a motor and can be equipped with a synchronous belt reducer for power transmission. The rotating motion module 25 is used to drive the intermediate test sample container 23 to rotate from 0 to 360°, and rotates 90° each time. That is, with each rotation, the intermediate test sample container 23 changes from horizontal to vertical, or vertical to horizontal, which corresponds to the feeding nozzle group 624 and the finished product nozzle group 634.

[0066] like Figure 2 and Figure 8 , Figure 9 As shown, the two scanning detection units 40a and b are arranged on opposite sides of the rotating disk 31 and correspond to the position of the fixture 32. The scanning detection units 40a and b are used to scan and detect the speaker units in the corresponding fixture 32 and exclude speaker units that fail the scanning or airtightness test.

[0067] The barcode scanning and detection unit 40a includes a first barcode scanning bracket 41a, a first barcode scanner 42a mounted on the first barcode scanning bracket 41a, a rotating body 43a, a suction cup 47b, a rotation drive module 45a, a lifting cylinder 46a, a translation cylinder 47a, and a first barcode scanning drive module 48a. The first barcode scanning drive module 48a also employs a motor-driven synchronous belt transmission structure. The barcode scanner is a purchased item, clamped on the synchronous belt, and is driven by the first barcode scanning drive module 48a to perform a horizontal translational movement. The barcode scanner is used to scan the speaker unit within the fixture 32. The rotating body 43a is connected to the rotating drive module 45a and rotates with the rotating drive module 45a. Multiple suction cups 47b are evenly distributed on the rotating body 43a and are used to adsorb speaker units. The lifting cylinder 46a drives the rotating drive module 45a to make a vertical lifting motion. The rotating drive module 45a outputs rotational power through a structure with a motor and a synchronous belt reducer. The translation cylinder 47a drives the rotating drive module 45a to make a horizontal translational motion perpendicular to the direction of movement of the barcode scanner.

[0068] The first barcode scanning drive module 48a drives the first barcode scanner 42a to scan and detect all speaker units in the fixture. Speaker units that cannot be scanned are marked. The lifting cylinder 46a and the translation cylinder 47a are controlled to move the rotating body 43a, where the suction cup 47b is located, to the fixture position. After suction, it is removed from the rear and discharged directly. Alternatively, the rotating body 43a can be flipped to the front by the rotation drive module 45a and removed manually.

[0069] like Figure 10 As shown, the barcode scanning detection unit 40b includes: a second barcode scanning bracket 41b, a movable seat 42b, a second barcode scanner 43b, a second barcode scanning drive module 44b, a suction cup bracket 45b, a suction cup drive module 46b, and a suction cup component 47b. The movable seat 42b is mounted on the second barcode scanning bracket 41b, and the second barcode scanner 43b is mounted on the movable seat 42b. The second barcode scanning drive module 44b and the suction cup drive module 46b both adopt a synchronous belt drive structure driven by a motor. The second barcode scanning drive module 44b is mounted on the second barcode scanning bracket 41b and is used to drive the horizontal translational movement of the movable seat 42b. The suction cup drive module 46b is mounted on the movable seat 42b and is used to drive the horizontal translational movement of the suction cup bracket 45b. The suction cup bracket 45b is used to mount a single suction cup component 47b, and the suction cup component 47b is used to adsorb a single speaker unit.

[0070] Similarly, the second barcode scanning drive module 44b drives the second barcode scanner 43b to scan the speaker units in the fixture again. At the same time, the suction cup drive module 46b, in conjunction with the suction cup component 47b, sucks out the defective speaker units one by one. An empty storage tray can be set on the movable seat 42b to store the defective speaker units.

[0071] like Figure 11 As shown, the airtightness testing unit 50 includes an airtightness mounting bracket 51 and an upper drive unit 52, an upper movable frame 53, a test head 54, a lower movable part 55, and a limiting frame 56 disposed on the airtightness mounting bracket 51. The upper drive unit 52 is used to drive the upper movable frame 53 to make a vertical lifting and lowering movement. The test head 54 is disposed on the upper movable frame 53 and corresponds to the speaker unit in the fixture 32. The lower movable part 55 is used to drive the limiting frame 56 to make a vertical lifting and lowering movement. The limiting frame 56 is used to press the fixture 32 to perform a conventional vacuum airtightness test.

[0072] Furthermore, the bearing rotation part 30 is located on the right side of the intermediate transfer part 20. The bearing rotation part 30 includes a bearing rotation drive assembly (not shown in the figure), a rotating disk 31, and a fixture 32. The bearing rotation drive assembly is used to drive the rotation of the rotating disk 31. It is hidden in the lower base 1 and can be driven by a motor. Multiple fixtures 32 are arranged around the rotating disk 31 and are used to place the speaker unit. The rotating disk 31 has a disc structure with multiple openings 311 evenly distributed around its circumference in a ring array. The openings 311 are used to install the fixtures 32. The fixtures 32 are conventional parts in the field and have two rows of receiving slots inside for placing the speaker unit.

[0073] The present invention is tested using the following main steps:

[0074] Step 1: Place the speaker unit to be tested into the storage tray 12, and place the storage tray 12 into the leftmost storage section 10 for later use. An empty storage tray 12 is placed in the adjacent right storage section 10.

[0075] Step 2: The lateral transport drive assembly 61 drives the loading and transport assembly 62 to move, transporting the speaker unit to be tested from a storage tray 12 in a storage section 10 to an adjacent empty storage tray 12.

[0076] Step 3: The lateral transport drive assembly 61 drives the loading and transport assembly 62 to move, transporting the speaker unit in the empty storage tray 12 in Step 2 to the transfer section 20. At this time, the intermediate test item container 23 in the transfer section 20 rotates to the lateral state, and the action of Step 2 is repeated.

[0077] Step 4: The intermediate test container 23 in the transfer section 20 rotates to a vertical position. At the same time, the horizontal transport drive assembly 61 drives the finished product transport assembly 63 to transport the speaker unit in the transfer section 20 to a single fixture 32. The bearing rotation drive assembly drives the rotating disk 31 to rotate, and rotates the fixture 32 to a barcode scanning and detection unit 40. The barcode scanning and detection unit 40 scans and detects the speaker unit in the fixture 32, and removes the speaker units that cannot be scanned.

[0078] Step 5: The rotating drive assembly continues to drive the rotating disk 31 to rotate, and rotates the fixture 32 from step 4 to below the airtightness test section 50. The fixture passes through the two airtightness test sections 50 in sequence to perform two airtightness tests, and records the position information of the speaker unit that fails the test.

[0079] Step Six: The rotating drive assembly continues to drive the rotating disk 31 to rotate, rotating the fixture 32 from Step Four to below another barcode scanning detection unit 40. The barcode scanning detection unit 40 performs a barcode scanning test on the speaker unit inside the fixture 32 again, and removes the speaker units that fail the barcode scanning test and the airtightness test. Then, the fixture 32 is rotated back to its original position.

[0080] Step 7: The lateral transport drive assembly 61 drives the finished product transport assembly 63, which transports the qualified speaker units in the fixture 32 from step 6 to the intermediate good product container 22 in the transfer section 20. The loading and transport assembly 62 then transports the qualified speaker units in the intermediate good product container 22 to the adjacent storage section 10 for storage.

[0081] Step 8: Repeat the above steps to achieve a cyclical automatic detection process.

[0082] The examples, embodiments, and particular forms of the invention illustrated have been shown and described in detail in the accompanying drawings and foregoing description, and should also be considered illustrative rather than restrictive. The description of a particular feature in one embodiment does not imply that those particular features must be limited to that one embodiment. Features of one embodiment can be used in combination with features of other embodiments, as will be understood by those skilled in the art, whether or not explicitly stated. Exemplary embodiments have been shown and described, and all variations and modifications fall within the spirit of the invention and are intended to be protected.

[0083] Explanation of reference numerals in the attached figures

[0084] Lower base 1

[0085] Upper casing 2

[0086] Storage Department 10

[0087] Storage rack 11

[0088] Storage tray 12

[0089] Transit Department 20

[0090] Transit bracket 21

[0091] Intermediate Good Product Container 22

[0092] Intermediate test sample container 23

[0093] Reception cavity 231

[0094] Translational motion module 24

[0095] Rotational motion module 25

[0096] Transit base 26

[0097] Bearing rotating part 30

[0098] Rotating disk 31

[0099] Opening 311

[0100] Jig 32

[0101] QR code detection department 40a, b

[0102] First barcode scanner bracket 41a

[0103] First barcode scanner 42a

[0104] Rotating body 43a

[0105] Suction cup body 44a

[0106] Rotary drive module 45a

[0107] Lifting cylinder 46a

[0108] Translation cylinder 47a

[0109] First barcode scanning driver module 48a

[0110] Second barcode scanner bracket 41b

[0111] 42b movable seat

[0112] Second barcode scanner 43b

[0113] Second scanning driver module 44b

[0114] Suction Cup Holder 45b

[0115] Suction Cup Drive Module 46b

[0116] Suction cup part 47b

[0117] Air tightness testing section 50

[0118] Airtight mounting bracket 51

[0119] Upper drive unit 52

[0120] 53 on the activity shelf

[0121] Test head 54

[0122] Lower Activities Department 55

[0123] Limit bracket 56

[0124] Transport Department 60

[0125] Lateral transport drive component 61

[0126] Material handling assembly 62

[0127] Finished product handling components 63

[0128] Horizontal transport support 611

[0129] Transport drive motor 612

[0130] Synchronous Belt Pulley 613

[0131] Material handling frame 621

[0132] Feeding cylinder 622

[0133] 623 Loading Lifting Frame

[0134] Feeding nozzle assembly 624

[0135] Feeding nozzle body 6241

[0136] Finished product handling frame 631

[0137] Finished cylinder 632

[0138] Finished lifting frame 633

[0139] Pre-assembled nozzle assembly 634

[0140] Finished nozzle body 6341.

Claims

1. A device for testing the airtightness of a loudspeaker unit, characterized in that, include: The storage section comprises two storage sections arranged side by side. Each storage section includes a storage support and a storage tray disposed on the storage support. One storage tray is used to place a speaker unit to be tested, and the other storage tray is used to place a speaker unit that has passed the test. The transfer section is located on one side of the storage section. The transfer section includes a transfer bracket, a transfer drive assembly, an intermediate good product container, and an intermediate test product container. The transfer drive assembly is mounted on the transfer bracket and is used to drive the intermediate good product container and the intermediate test product container to translate simultaneously. The transfer drive assembly can also drive the intermediate test product container to rotate. The intermediate good product container is used to hold the speaker unit that has passed the test, and the intermediate test product container is used to hold the speaker unit to be tested. A rotating bearing unit is disposed on one side of the intermediate transfer unit. The rotating bearing unit includes a rotating bearing drive assembly, a rotating disk surface, and fixtures. The rotating bearing drive assembly is used to drive the rotating disk surface to rotate. Multiple fixtures are arranged around the rotating disk surface and are used to place speaker units. The two scanning detection units are arranged on opposite sides of the rotating disk and correspond to the position of the fixture. The scanning detection units are used to scan the speaker units in the corresponding fixture and exclude speaker units that fail the scanning or airtightness test. An airtightness testing unit is provided. Two airtightness testing units are arranged on one side of the rotating disk and between the two barcode scanning and detection units. The airtightness testing units correspond to the positions of the fixtures. The airtightness testing units are used to perform airtightness testing on the speaker units in the corresponding fixtures. The transport unit is horizontally positioned above the storage unit and the rotating bearing unit. The transport unit includes a horizontal transport drive assembly, a loading transport assembly, and a finished product transport assembly. The horizontal transport drive assembly is used to simultaneously drive the loading transport assembly and the finished product transport assembly to move horizontally. The loading transport assembly is used to transport multiple speaker units in one storage tray to an intermediate test product container and to transport multiple speaker units in an intermediate good product container to another storage tray. The finished product transport assembly is used to transport multiple speaker units in an intermediate test product container to a fixture and to transport multiple speaker units in a fixture to an intermediate good product container.

2. The airtightness testing device for a loudspeaker unit according to claim 1, characterized in that, The lateral transport drive assembly includes a lateral transport bracket, a transport drive motor, a synchronous pulley, and a synchronous belt. The transport drive motor is mounted on the lateral transport bracket and is used to drive the movement of the synchronous pulley. The synchronous belt is mounted on the synchronous pulley and rotates accordingly.

3. The airtightness testing device for a loudspeaker unit according to claim 2, characterized in that, The feeding and conveying assembly includes a feeding and conveying frame, a feeding cylinder mounted on the feeding and conveying frame, a feeding lifting frame, and two sets of feeding nozzles. The feeding and conveying frame is clamped onto a synchronous belt and moves laterally with the synchronous belt. The feeding cylinder drives the longitudinal lifting movement of the feeding lifting frame. The two sets of feeding nozzles are arranged side by side and spaced apart on the feeding lifting frame. Each set of feeding nozzles includes multiple horizontally arranged feeding nozzles. Each feeding nozzle is used to adsorb a single speaker unit.

4. The airtightness testing device for a loudspeaker unit according to claim 3, characterized in that, The finished product handling assembly includes a finished product handling frame, a finished product cylinder mounted on the finished product handling frame, a finished product lifting frame, and two sets of finished product suction nozzles. The finished product handling frame is clamped onto a synchronous belt and moves laterally with the synchronous belt. The finished product cylinder drives the longitudinal lifting movement of the finished product lifting frame. The two sets of finished product suction nozzles are arranged side by side and spaced apart on the finished product lifting frame. Each set of finished product suction nozzles includes multiple vertically arranged finished product suction nozzles, and each finished product suction nozzle is used to adsorb a single speaker unit.

5. The airtightness testing device for a loudspeaker unit according to claim 4, characterized in that, The transfer drive assembly includes a translational motion module, a rotational motion module, and a transfer base mounted on a transfer bracket. The transfer base moves horizontally with the translational motion module. The rotational motion module is mounted on the transfer base and is used to drive the intermediate test sample container to rotate from 0 to 360°, with each rotation being 90°.

6. The airtightness testing device for a loudspeaker unit according to claim 5, characterized in that, The intermediate test specimen container is provided with a single row of multiple cavities, each of which is used to place a single speaker unit to be tested.

7. The airtightness testing device for a loudspeaker unit according to claim 6, characterized in that, One of the barcode scanning detection units includes a first barcode scanning bracket, a first barcode scanner, a rotating body, a suction cup body, a rotation drive module, a lifting cylinder, a translation cylinder, and the first barcode scanning drive module, all mounted on the first barcode scanning bracket. The first barcode scanning drive module is used to drive the barcode scanner to make a horizontal translational movement, and the barcode scanner is used to scan and detect the speaker unit inside the fixture. The rotating body is connected to the rotation drive module and rotates with the rotation drive module. Multiple suction cups are evenly distributed on the rotating body, and the suction cups are used to adsorb speaker units. The lifting cylinder is used to drive the rotation drive module to make a vertical lifting motion; The translation cylinder is used to drive the rotation drive module to make a horizontal translation movement perpendicular to the direction of movement of the barcode scanner.

8. The airtightness testing device for a loudspeaker unit according to claim 7, characterized in that, Another of the aforementioned barcode scanning and detection units includes: a second barcode scanning bracket, a movable base, a second barcode scanner, a second barcode scanning drive module, a suction cup bracket, a suction cup drive module, and a suction cup component; The movable seat is mounted on the second barcode scanner bracket, the second barcode scanner is mounted on the movable seat, and the second barcode scanning drive module is mounted on the second barcode scanner bracket and used to drive the movable seat to move horizontally. The suction cup drive module is mounted on the movable base and is used to drive the suction cup bracket to move horizontally. The suction cup bracket is used to install a single suction cup component, and the suction cup component is used to adsorb a single speaker unit.

9. The airtightness testing device for a loudspeaker unit according to claim 8, characterized in that, The airtightness testing unit includes an airtight mounting bracket and an upper drive unit, an upper movable frame, a test head, a lower movable part, and a limit frame, all mounted on the airtight mounting bracket. The upper drive unit is used to drive the upper movable frame to make a vertical lifting and lowering movement. The test head is set on the upper movable frame and corresponds to the speaker unit in the fixture. The lower movable part is used to drive the limiting frame to make a vertical lifting and lowering movement, and the limiting frame is used to press the fixture.

10. A method for testing the airtightness of a loudspeaker unit, characterized in that, The airtightness testing device for a loudspeaker unit as described in any one of claims 1-9 is used, and the testing method includes the following steps performed sequentially: Step 1: Place the speaker unit to be tested into the storage tray, and place the storage tray into the storage section at the outermost side for later use. Set up an empty storage tray in the adjacent storage section. Step 2: The lateral transport drive component moves the loading and transport component to move the speaker unit to be tested from a storage tray in a storage section to an adjacent empty storage tray. Step 3: The lateral transport drive component drives the loading and transport component to move, transporting the speaker unit in the empty storage tray in Step 2 to the transfer section, and repeating the action of Step 2 at the same time. Step 4: The horizontal transport drive assembly simultaneously drives the finished product transport assembly to transport the speaker units in the transfer section to a single fixture. The load-bearing rotation drive assembly drives the rotating disk to rotate, rotating the fixture to a position below a barcode scanning and detection unit. The barcode scanning and detection unit scans and records the barcodes of the speaker units in the fixture and removes speaker units that cannot be scanned. Step 5: The rotating drive assembly continues to drive the rotating disk to rotate, rotating the fixture from Step 4 to below the airtightness testing section. The fixture is then passed through the two airtightness testing sections in sequence to perform two airtightness tests, and the position information of the speaker unit that fails the test is recorded. Step Six: The rotating drive assembly continues to drive the rotating disk to rotate, rotating the fixture from Step Four to below another barcode scanning and detection unit. The barcode scanning and detection unit performs a second barcode scanning test on the speaker unit inside the fixture. At the same time, the speaker units that fail the barcode scanning test and the airtightness test are removed. Then, the fixture is rotated back to its original position. Step 7: The lateral transport drive assembly drives the finished product transport assembly, which transports the qualified speaker units in the fixture from Step 6 to the transfer section. The loading and transport assembly then transports the qualified speaker units in the transfer section to the adjacent storage section for storage. Step 8: Repeat the above steps.

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