An automatic headphone test line
By designing an automated test line for headphones, the automated testing of headphones is achieved through a conveying device and a transfer mechanism, solving the problem of low efficiency in traditional testing processes and realizing highly efficient automated production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU GUIDE MEASUREMENT & CONTROL TECH CO LTD
- Filing Date
- 2025-08-31
- Publication Date
- 2026-08-04
AI Technical Summary
In the traditional testing process for headphones, manual operation is inefficient and difficult to adapt to the automation requirements of mass production. In addition, each testing device has poor coordination in terms of independent loading and unloading.
An automated test line for headphones is designed, which combines a conveying device, a transfer mechanism, and a testing device to achieve automated testing of headphones. The collaborative operation of multiple testing devices is achieved through components such as robotic arms and suction cups.
It improves the coordination and efficiency of headphone testing, meets the needs of automated production, and reduces labor intensity and resource waste.
Smart Images
Figure CN224596609U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of headphone manufacturing technology, specifically to an automatic testing line for over-ear headphones. Background Technology
[0002] Headphones are a pair of transducers that receive electrical signals from a media player or receiver and convert them into sound waves audible to the human ear using sound-producing units placed close to the ears. Headphones can prevent disturbing others and isolate ambient noise, avoiding interference from the surrounding environment. Traditional headphones are generally used in products such as mobile phones, portable music players, portable game consoles, and digital audio players, connecting to these products via wires. However, in recent years, with rapid technological advancements, headphones that transmit audio signals wirelessly have become increasingly common. In the production process of over-ear headphones, after assembly, the headphones need to be tested, such as for radio frequency testing and acoustic testing, to ensure that the product meets design standards. To eliminate interference, the testing process typically requires placing the headphones in a test chamber to shield them from external interference. In the traditional testing process, headphones are manually placed into the test chamber of the testing equipment and removed after testing. However, each test chamber can only test one headphone. In mass production, multiple testing devices are needed, but each testing device is relatively independent, requiring separate loading and unloading, resulting in low coordination, increased labor intensity, and low overall efficiency, making it difficult to adapt to the needs of automated production. Utility Model Content
[0003] To address the aforementioned problems, this invention provides an automatic testing cable for headphones.
[0004] This utility model is achieved using the following solution: An automatic test cable for over-ear headphones, comprising: A conveying device, comprising a first conveying mechanism and a second conveying mechanism arranged side by side; A first transfer mechanism is used to transport headphones, and the first transfer mechanism is disposed above the first conveying mechanism and the second conveying mechanism; A second transfer mechanism is disposed on the second transmission mechanism, and the second transfer mechanism transfers the earphone between the first transmission mechanism and the second transmission mechanism; A testing device is provided on both sides of the conveying device, and there are several testing devices.
[0005] Furthermore, the first transfer mechanism includes a transfer seat disposed on the first conveying mechanism and the second conveying mechanism, a robot arm disposed on the transfer seat, a first picking bracket connected to the robot arm, a picking drive connected to the picking bracket, and a picking assembly connected to the output end of the picking drive; the picking assembly includes a second picking bracket connected to the output end of the picking drive and two suction cups disposed on the second picking bracket.
[0006] Furthermore, the first conveying mechanism is provided with a power-on mechanism, which includes a power-on bracket disposed on the first conveying mechanism, a pressing drive component disposed on the power-on bracket, a first lifting drive component disposed on the power-on bracket, and a pressing drive component connected to the output end of the first lifting drive component for pressing the headphone button.
[0007] Furthermore, the second transfer mechanism includes a support frame disposed on the second conveying mechanism, a first linear module disposed on the support frame, a transfer bracket connected to the first linear module, a transfer component disposed on the transfer bracket, and a shutdown mechanism connected to the transfer component.
[0008] Furthermore, the transfer assembly includes a second lifting drive connected to the transfer bracket, a lifting bracket connected to the output end of the second lifting drive, and a plurality of suction nozzles disposed on the lifting bracket.
[0009] Furthermore, the first conveying mechanism is provided with a plurality of positioning mechanisms, the mechanism including two mutually cooperating positioning brackets respectively disposed on both sides of the first conveying mechanism, and a positioning drive component disposed on one of the positioning brackets; a sensor is disposed on the first conveying mechanism at the position corresponding to the positioning mechanism.
[0010] Furthermore, the testing device includes a chassis, a test box disposed on the chassis, and a test fixture disposed inside the test box; the test fixture includes a bottom support, a second linear module disposed on the bottom support, a slide table disposed on the second linear module, a first support seat for carrying the earphone unit disposed on the slide table, and a second support seat disposed on the slide table.
[0011] Furthermore, the test fixture also includes two first clamping mechanisms and a second clamping mechanism for clamping the headphone crossbeam, respectively, which are disposed on the bottom bracket; the first clamping mechanism and the second clamping mechanism each include a clamping drive and a clamping component connected to the output end of the clamping drive.
[0012] Furthermore, the first transfer mechanism, the second transfer mechanism, and several testing devices together constitute a testing block, and two testing blocks are arranged along the conveying direction of the conveying device.
[0013] Furthermore, both the first and second conveying mechanisms include several conveyor belts connected in series.
[0014] Compared with the prior art, the present invention has the following advantages: The first transfer mechanism of this utility model can handle the loading and unloading of multiple testing devices. It sequentially puts in or takes out headphones for each testing device according to the testing rhythm, with strong coordination and high work efficiency. At the same time, with the cooperation of the conveying mechanism and the second transfer mechanism, it realizes the automatic testing of headphones, meeting the needs of automated production. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of an automatic test cable for headphones provided in an embodiment of the present invention.
[0016] Figure 2 This is a schematic diagram of the first transfer mechanism and positioning mechanism in an embodiment of this utility model.
[0017] Figure 3 This is a schematic diagram of the second transfer mechanism and accounting mechanism in an embodiment of this utility model.
[0018] Figure 4 This is a schematic diagram of the positioning fixture part in an embodiment of the present utility model.
[0019] Figure 5 This is a schematic diagram of the conveying device and the starting mechanism of this utility model.
[0020] The image includes: Conveying device 1, First conveying mechanism 11, Conveyor belt 111, Second conveying mechanism 12, First transfer mechanism 2, Transfer seat 21, Robotic arm 22, First picking bracket 23, Picking drive component 24, Picking assembly 25, Second picking bracket 26, Suction cup 27, Second transfer mechanism 3, Support frame 31, First linear module 32, Transfer assembly 33, Second lifting drive component 331, Lifting bracket 332, Suction nozzle 333, Testing device 4, Chassis 41, Testing box 42. Test fixture; 43. Bottom bracket; 431. Second linear module; 432. Slide table; 433. First bearing seat; 434. Second bearing seat; 435. First clamping mechanism; 44. Clamping drive; 441. Clamping component; 442. Second clamping mechanism; 45. Power-on mechanism; 5. Power-on bracket; 51. Downward drive; 52. First lifting drive; 53. Press drive; 54. Power-off mechanism; 6. Positioning mechanism; 7. Positioning bracket; 71. Positioning drive; 72. Sensor; 73. Detailed Implementation
[0021] To facilitate understanding of this utility model by those skilled in the art, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0022] Reference Figures 1 to 5 The present invention provides an automatic test cable for headphones, comprising: a transmission device 1, a first transfer mechanism 2, a second transfer mechanism 3, and a test device 4.
[0023] The conveying device 1 includes a first conveying mechanism 11 and a second conveying mechanism 12 arranged side by side. The first transfer mechanism 2 is used to transport headphones and is positioned above the first conveying mechanism 11 and the second conveying mechanism 12. The second transfer mechanism 3 is positioned on the second conveying mechanism 12 and transfers headphones between the first conveying mechanism 11 and the second conveying mechanism 12. Several testing devices 4 are arranged on both sides of the conveying device 1. The first conveying mechanism 11 conveys a tray containing headphones to be tested. The first transfer mechanism 2 transfers the headphones from the tray to the testing device 4 for testing. After testing, the headphones are returned to the tray. The second transfer mechanism 3 can then transfer the entire tray from the first transfer mechanism 2 to the second transfer mechanism 3.
[0024] The first transfer mechanism 2 includes a transfer seat 21 disposed on the first conveying mechanism 11 and the second conveying mechanism 12, a robotic arm 22 disposed on the transfer seat 21, a first picking bracket 23 connected to the robotic arm 22, a picking drive 24 connected to the picking bracket, and a picking assembly 25 connected to the output end of the picking drive 24. The picking drive 24 is a cylinder, which is arranged horizontally and can extend into the test chamber 42 to pick up and place headphones. In this embodiment, there are two picking drive 24s and two corresponding picking assemblies 25, which can simultaneously pick up headphones to be tested from the test device 4 and place them into the test device 4, achieving seamless connection. The first transfer mechanism 2 can pick up the headphones to be tested conveyed by the first conveying mechanism 11 and place them into the test chamber 42, and remove the headphones after the test is completed.
[0025] The material handling assembly 25 includes a second material handling bracket 26 connected to the output end of the material handling drive component 24, and two suction cups 27 disposed on the second material handling bracket 26, with the two suction cups 27 corresponding to the left and right units of the earphone respectively. The suction cups 27 are made of silicone or rubber and are connected to a vacuum pump through a pipeline, which can firmly adhere to the earphone without easily damaging the earphone surface.
[0026] The first conveying mechanism 11 is equipped with a power-on mechanism 5. The power-on mechanism 5 includes a power-on bracket 51 mounted on the first conveying mechanism 11, a pressing drive 52 mounted on the power-on bracket 51, a first lifting drive 53 mounted on the power-on bracket 51, and a pressing drive 54 connected to the output end of the first lifting drive 53 for pressing the earphone button. The pressing drive 52 is used to press the earphone, making it easier for the pressing drive 54 to press the earphone button, thereby realizing power-on and function mode switching. In this embodiment, there are two pressing drive 54s, which can press two buttons simultaneously. The pressing drive 52, the first lifting drive 53, and the pressing drive 54 can all be cylinders.
[0027] The second transfer mechanism 3 includes a support frame 31 disposed on the second conveying mechanism, a first linear module 32 disposed on the support frame 31, a transfer bracket connected to the first linear module 32, a transfer component 33 disposed on the transfer bracket, and a shutdown mechanism 6 connected to the transfer component 33.
[0028] The transfer assembly 33 includes a second lifting drive 331 connected to the transfer bracket, a lifting bracket 332 connected to the output end of the second lifting drive 331, and a plurality of suction nozzles 333 disposed on the lifting bracket 332. The structure of the shutdown mechanism 6 is similar to that of the startup mechanism 5, except that it lacks the startup bracket 51 and is directly connected to the lifting bracket 332 of the transfer assembly 33.
[0029] The first conveying mechanism 11 is provided with a plurality of positioning mechanisms 7. Each mechanism includes two cooperating positioning brackets 71 respectively disposed on both sides of the first conveying mechanism 11, and a positioning drive component 72 disposed on one of the positioning brackets 71. The positioning drive component 72 is a cylinder, which can press the corresponding material tray against the positioning bracket 71 on the other side, thereby locking the material tray in its current position. The number of positioning mechanisms 7 can be set according to the actual production schedule, for example, it can correspond to the number of testing devices 4. A sensor 73 is disposed on the first conveying mechanism 11 at the position corresponding to the positioning mechanism 7. The sensor 73 is used to sense whether the material tray has moved into position. In this embodiment, the sensor 73 can be a photoelectric sensor 73.
[0030] The testing device 4 includes a chassis 41, a testing chamber 42 mounted on the chassis 41, and a testing fixture 43 disposed inside the testing chamber 42. When closed, the testing chamber 42 forms a sealed structure, with sound-absorbing cotton pasted on its inner wall to effectively isolate external noise. In this embodiment, four testing devices 4 are disposed on both sides of the conveying device 1; two are disposed on one side of the first conveying mechanism 11, and two are disposed on one side of the second conveying mechanism 12. The first transfer mechanism 2 is located in the middle of the four testing devices 4 and can feed materials to the four testing devices 4.
[0031] The test fixture 43 includes a bottom support 431, a second linear module 432 mounted on the bottom support 431, a slide 433 mounted on the second linear module 432, a first support 434 mounted on the slide 433 for supporting the earphone unit, and a second support 435 mounted on the slide 433. An artificial ear can be mounted on the first support 434 to facilitate receiving sound from the earphone unit. The test fixture 43 also includes two first clamping mechanisms 44 mounted on the bottom support 431 for clamping the two earphone units respectively, and a second clamping mechanism 45 for clamping the earphone crossbeam; both the first clamping mechanism 44 and the second clamping mechanism 45 include a clamping drive 441 and a clamping member 442 connected to the output end of the clamping drive 441. In this embodiment, the clamping drive 441 is a common cylinder, but a rotary clamping cylinder can also be used. When the earphone is released, the rotary clamping cylinder can move the clamping component 442 away from the earphone to avoid interfering with the first transfer mechanism 2's grasping of the earphone. The slide 433 is initially located on the outside. After the transfer mechanism places the earphone onto the first support 434 and the second support 435, the second linear module 432 drives the slide 433 to move to the inside. Then, the two first clamping mechanisms 44 clamp the two units of the earphone, and the second clamping mechanism 45 clamps the crossbeam of the earphone, completing the earphone positioning. Afterward, the test box 42 can be closed to test the earphone.
[0032] The first transfer mechanism 2, the second transfer mechanism 3, and the four testing devices 4 together constitute a testing block. The first transfer mechanism 2 can simultaneously handle the loading and unloading of the four testing devices 4, eliminating the need for a separate loading mechanism for each testing device. This avoids the loading mechanisms being idle for extended periods while waiting for testing, preventing resource waste. The overall coordination is strong, adapting to the needs of automated production. Two testing blocks are arranged along the conveying direction of the conveying device 1. The two testing blocks operate independently and can perform headphone testing simultaneously. Of course, in specific implementations, more than two testing blocks can be set up according to production needs.
[0033] Both the first conveying mechanism 11 and the second conveying mechanism 12 include several conveyor belts 111 connected in series. In specific implementations, both ends of the first conveying mechanism 11 can be connected to other conveyor belts 111 to connect preceding and following processes, and the same applies to the second conveying mechanism 12. The first conveying mechanism 11 is also equipped with several blocking cylinders. Each blocking cylinder has a blocking component that blocks the material tray. The blocking cylinder can drive the blocking component to move above the conveyor belt 111 of the first conveying mechanism 11 to jam the material tray and prevent it from moving further. For example, if a blocking cylinder is set at the starting mechanism 5, it can jam the material tray when it reaches the starting mechanism 5, facilitating the starting mechanism 5 to start. Alternatively, a blocking mechanism can be set before the starting mechanism 5 to block the subsequent flow of material trays when the starting mechanism 5 performs the starting action. At the same time, a corresponding blocking cylinder can also be set at each positioning mechanism 7.
[0034] The automatic headphone test cable in this embodiment also includes a control system (with a computer) that can control the coordinated action of each mechanism. Operators can set test parameters, monitor the operating status of the equipment, and view the test results via the computer.
[0035] The following describes the testing procedure of this utility model using the testing procedure of one of the headphones. The transmission direction of the first transmission mechanism 11 is from left to right (with...). Figure 1Taking this as an example, the tray first enters the power-on mechanism 5 to power on the headphones, then moves to the positioning mechanism 7. The positioning mechanism 7 locks the tray, making it easy for the transfer mechanism to pick up the headphones. The transfer mechanism places the headphones onto the test fixture 43 of the test chamber 42. The test chamber 42 closes and tests the headphones. After the test, the test chamber 42 opens, and the transfer mechanism removes the headphones and puts them back on the tray. When the tray flows to the position corresponding to the second transfer mechanism 3, the second transfer mechanism 3 can transfer the entire tray to the second conveying mechanism 12. The second conveying mechanism 12 then conveys the tray to the next process (the conveying direction of the second conveying mechanism 12 can be adjusted according to the site conditions). Of course, the tested headphones can also be sent directly to the next process via the first conveying mechanism 11 instead of being transferred to the second conveying mechanism 12. The specific conveying method can be flexibly adjusted according to production needs. The above only describes the testing process for one earphone. In actual operation, multiple earphones can be conveyed into the test area at once. Taking one test area as an example, four earphones can be conveyed into the positioning mechanism 7 of the test area first. The first transfer mechanism 2 first sends the four earphones into the four test boxes 42 respectively. At this time, the first conveying mechanism 11 has four empty trays corresponding to the test area. The four empty trays can be sent away first, and then four earphones to be tested can be sent into the area. The first transfer mechanism 2 first grabs one of the earphones to be tested from the second batch. After the first earphone is tested, it will be retrieved. As the tested headphones are removed, the grabbed headphones are placed into the conveyor belt 111, which has an empty tray. The tested headphones can be placed into this empty tray. The conveyor belt 111 then transports the tested headphones to the corresponding position of the second transfer mechanism 3 (this position can be equipped with a positioning mechanism 7, allowing the first headphones to directly enter the positioning mechanism 7 during feeding). After the shutdown mechanism 6 completes shutdown, the second transfer mechanism 3 transfers the headphones along with the tray to the second transfer mechanism 12. Subsequent headphones follow the same process, and so on. The two test blocks can be tested simultaneously. Of course, this embodiment only lists one test process. In specific implementation, it can be flexibly adjusted according to actual production needs, such as setting the two test blocks to different test items.
[0036] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0039] Although the description of this utility model has been given in conjunction with the specific embodiments described above, it is obvious to those skilled in the art that many substitutions, modifications, and variations can be made based on the above description. Therefore, all such substitutions, modifications, and variations are included within the scope of the appended claims.
Claims
1. An automatic test cable for over-ear headphones, characterized in that, include: A conveying device, comprising a first conveying mechanism and a second conveying mechanism arranged side by side; A first transfer mechanism is used to transport headphones, and the first transfer mechanism is disposed above the first conveying mechanism and the second conveying mechanism; A second transfer mechanism is disposed on the second transmission mechanism, and the second transfer mechanism transfers the earphone between the first transmission mechanism and the second transmission mechanism; A testing device is provided on both sides of the conveying device, and there are several testing devices.
2. The automatic test cable for headphones according to claim 1, characterized in that, The first transfer mechanism includes a transfer seat disposed on the first conveying mechanism and the second conveying mechanism, a robot arm disposed on the transfer seat, a first picking bracket connected to the robot arm, a picking drive connected to the picking bracket, and a picking assembly connected to the output end of the picking drive; the picking assembly includes a second picking bracket connected to the output end of the picking drive and two suction cups disposed on the second picking bracket.
3. The automatic test cable for headphones according to claim 1, characterized in that, The first conveying mechanism is provided with a power-on mechanism, which includes a power-on bracket on the first conveying mechanism, a pressing drive on the power-on bracket, a first lifting drive on the power-on bracket, and a pressing drive connected to the output end of the first lifting drive for pressing the headphone button.
4. The automatic test cable for headphones according to claim 1, characterized in that, The second transfer mechanism includes a support frame disposed on the second conveying mechanism, a first linear module disposed on the support frame, a transfer bracket connected to the first linear module, a transfer component disposed on the transfer bracket, and a shutdown mechanism connected to the transfer component.
5. The automatic test cable for headphones according to claim 4, characterized in that, The transfer assembly includes a second lifting drive connected to the transfer bracket, a lifting bracket connected to the output end of the second lifting drive, and a plurality of suction nozzles disposed on the lifting bracket.
6. The automatic test cable for headphones according to claim 1, characterized in that, The first conveying mechanism is provided with a plurality of positioning mechanisms. Each mechanism includes two cooperating positioning brackets respectively disposed on both sides of the first conveying mechanism and a positioning drive component disposed on one of the positioning brackets. The first conveying mechanism is provided with a sensor at the position corresponding to the positioning mechanism.
7. The automatic test cable for headphones according to claim 1, characterized in that, The testing device includes a chassis, a test box mounted on the chassis, and a test fixture disposed inside the test box; the test fixture includes a bottom support, a second linear module mounted on the bottom support, a slide mounted on the second linear module, a first support seat for supporting the earphone unit mounted on the slide, and a second support seat mounted on the slide.
8. The automatic test cable for headphones according to claim 7, characterized in that, The test fixture also includes two first clamping mechanisms for clamping the two earphone units and a second clamping mechanism for clamping the earphone crossbeam, respectively, which are disposed on the bottom bracket; the first clamping mechanism and the second clamping mechanism each include a clamping drive and a clamping component connected to the output end of the clamping drive.
9. The automatic test cable for headphones according to claim 1, characterized in that, The first transfer mechanism, the second transfer mechanism, and several testing devices together constitute a testing block, and two testing blocks are arranged along the conveying direction of the conveying device.
10. The automatic test cable for headphones according to claim 1, characterized in that, Both the first and second conveying mechanisms include several conveyor belts connected in series.