Automatic detection system for earphone units

Abstract

The present invention proposes an automatic detection system for earphone monomers, comprising a longitudinal slide device, a first robotic arm, an audio measuring device, a transverse slide device, a second robotic arm, and a carrier plate for earphone monomers to be tested. The first robotic arm is arranged on the longitudinal slide device, and the first robotic arm has a test probe. The audio measuring device is arranged below the first robotic arm, and the audio measuring device has an earphone monomer accommodating recess, and the test probe is aligned with the earphone monomer accommodating recess. The transverse slide device is arranged orthogonally to the longitudinal slide device. The second robotic arm is arranged on the transverse slide device, and the carrier plate for earphone monomers to be tested is arranged below the second robotic arm. In this way, the present invention realizes automatic detection of earphone monomers, thereby improving efficiency, saving manpower, improving detection accuracy, and eliminating human misjudgment.

Description

Technical Field

[0001] The present invention relates to a physical device, and in particular to an automatic detection system for earphone units. Background Art

[0002] Headphones are a conversion unit consisting of a pair of earphones. They receive electrical signals from a media player or receiver and convert them into audible sound waves using speakers placed close to the ears. Headphones are typically detachable from the media player, connecting with a single plug. This allows for private listening without disturbing others.

[0003] Before headphones leave the factory, quality is typically determined by human listening. Traditionally, headphone drivers are manually graded, polarity checked, and marked. This method is labor-intensive and inaccurate. Consequently, automated testing of headphone drivers has become a crucial issue. Summary of the Invention

[0004] The present invention provides an automatic detection system for earphone units, which improves the problems of the prior art.

[0005] In one embodiment of the present invention, the automated headphone unit detection system proposed in the present invention includes a longitudinal slide rail device, a first robotic arm, an audio measurement device, a transverse slide rail device, a second robotic arm, and a headphone unit carrier to be tested. The first robotic arm is disposed on the longitudinal slide rail device, and the first robotic arm has a test probe. The audio measurement device is disposed below the first robotic arm, and the audio measurement device has a headphone unit accommodating recess, and the test probe is aligned with the headphone unit accommodating recess. The transverse slide rail device is disposed orthogonally to the longitudinal slide rail device. The second robotic arm is disposed on the transverse slide rail device, and the headphone unit carrier to be tested is disposed below the second robotic arm.

[0006] In one embodiment of the present invention, the front end of the test probe has a buffer device.

[0007] In one embodiment of the present invention, the second robotic arm has a fixture for the earphone unit to be tested.

[0008] In one embodiment of the present invention, the headphone unit automatic detection system further includes a third robotic arm and a headphone unit position printing device. The third robotic arm is disposed on the transverse slide device, and the headphone unit position printing device is disposed below the third robotic arm.

[0009] In one embodiment of the present invention, the third robotic arm has a fixture for the tested earphone unit.

[0010] In one embodiment of the present invention, the first robotic arm is located between the second robotic arm and the third robotic arm, the audio measuring device is located between the headphone monomer carrier to be tested and the headphone monomer gear printing device, and the audio measuring device is separately arranged from the longitudinal slide rail device.

[0011] In one embodiment of the present invention, the headphone unit automatic detection system further includes a computer device. The computer device is electrically connected to the first robotic arm, the audio measurement device, and the headphone unit position printing device.

[0012] In one embodiment of the present invention, the headphone monomer automatic detection system further comprises a fourth robotic arm and a headphone monomer gear classification tray. The fourth robotic arm is disposed on the transverse slide rail device, and the headphone monomer gear classification tray is disposed below the fourth robotic arm.

[0013] In one embodiment of the present invention, the automatic headphone unit detection system further comprises a horizontal transmission device, which is arranged below the headphone unit gear classification tray.

[0014] In one embodiment of the present invention, the fourth robotic arm has a clamp for classifying earphone units.

[0015] In summary, the technical solution of the present invention has significant advantages and beneficial effects compared to the prior art. Through the technical solution of the present invention, an automated headphone unit detection system is realized, thereby improving efficiency, saving manpower, increasing detection accuracy, and eliminating human misjudgment.

[0016] The above description will be described in detail below with reference to implementation examples, and a further explanation of the technical solution of the present invention will be provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To make the above and other objects, features, advantages and embodiments of the present invention more apparent, the accompanying drawings are described as follows:

[0018] Figure 1 1 is a schematic diagram of the architecture of an automatic detection system for earphone units according to an embodiment of the present invention;

[0019] Figure 2 is a partial block diagram of an automatic detection system for earphone units according to an embodiment of the present invention;

[0020] Figure 3 is a top view of a headphone unit gear classification tray according to an embodiment of the present invention; and

[0021] Figure 4 It is a three-dimensional cross-sectional view of an earphone unit according to an embodiment of the present invention.

[0022]

Explanation of symbols

[0023] To make the above and other objects, features, advantages and embodiments of the present invention more clearly understood, the accompanying symbols are explained as follows:

[0024] 100: Earphone unit automatic detection system

[0025] 110: First Robotic Arm

[0026] 112: Test probe

[0027] 114: Buffer device

[0028] 120: Second robotic arm

[0029] 122: Headphones to be tested fixture

[0030] 130: The third robotic arm

[0031] 132: Tested headphone unit fixture

[0032] 140: The fourth robotic arm

[0033] 142: Headphones single gear classification fixture

[0034] 150: Horizontal slide rail device

[0035] 151: First transverse slide rail assembly

[0036] 152: Second transverse rail assembly

[0037] 155: Longitudinal slide rail device

[0038] 160: Headphone unit carrier under test

[0039] 170: Audio Measurement Device

[0040] 172: Earphone unit housing recess

[0041] 180: Earphone unit position printing device

[0042] 190: Headphones monomer gear classification carrier

[0043] 192: Horizontal transmission device

[0044] 210: Computer device

[0045] 301-308: Classification area

[0046] 400: Headphones

[0047] 410: Magnet

[0048] 420: Huasi

[0049] 430: Diaphragm

[0050] 440: Voice coil

[0051] 450: Protective cover

[0052] 460: Iron Plate

[0053] 470: Protective glue

[0054] 480: Printed Circuit Board DETAILED DESCRIPTION

[0055] To make the description of the present invention more detailed and complete, reference is made to the accompanying drawings and various embodiments described below. In the drawings, like numbers represent the same or similar elements. On the other hand, well-known elements and steps are not described in the embodiments to avoid unnecessary limitations on the present invention.

[0056] In the embodiments and claims, the description involving “connection” may generally refer to one element being indirectly coupled to another element through other elements, or one element being directly connected to another element without going through other elements.

[0057] In the embodiments and claims, unless the context specifically limits the articles, "a," "an," and "the" may refer to a single or plural number.

[0058] As used herein, "about," "approximately," or "substantially" is used to modify any quantity that may vary slightly, but such slight variation does not alter its essence. Unless otherwise specified in the embodiments, the error range of the value modified by "about," "approximately," or "substantially" is generally within 20%, preferably within 10%, and more preferably within 5%.

[0059] Figure 1 FIG. 1 is a schematic diagram of the structure of an automatic headphone unit detection system 100 according to an embodiment of the present invention. Figure 1As shown, the first robotic arm 110 is mounted on a longitudinal slide assembly 155. The first robotic arm 110 has a test probe 112, with a buffering device 114 (e.g., damper, spring, etc.) at its front end. An audio measurement device 170 is mounted below the first robotic arm 110 and includes an earphone unit accommodating recess 172, with the test probe 122 aligned with the earphone unit accommodating recess 172. A transverse slide assembly 150 is positioned orthogonally to the longitudinal slide assembly 155 and may include a first transverse slide assembly 151 and a second transverse slide assembly 152. A second robotic arm 120 is mounted on the transverse slide assembly 150, with an earphone unit carrier 160 mounted below the second robotic arm 120. The second robotic arm 120 has a fixture 122 for the earphone unit under test. Furthermore, the first robotic arm 110, the second robotic arm 120, and the audio measurement device 170 all feature shock and noise isolation. More specifically, the first robotic arm 110 , the second robotic arm 120 , the audio measurement device 170 , and their configuration connections are all installed with shockproof materials to reduce vibration and noise interference from the surrounding environment during the testing process, thereby effectively improving the accuracy of automatic detection.

[0060] During use, the headphone monomer fixture 122 can be extended and retracted from the second robotic arm 120 to remove the headphone monomer from the headphone monomer tray 160. As the second robotic arm 120 moves along the transverse rail assembly 150, the headphone monomer fixture 122 of the second robotic arm 120 places the headphone monomer in the headphone monomer receiving recess 172 of the audio measurement device 170. As the first robotic arm 110 moves along the longitudinal rail assembly 155, the test probe 112 of the first robotic arm 110 is able to test the headphone monomer in the headphone monomer receiving recess 172. Furthermore, a buffer 114 at the front end of the test probe 112 prevents damage to the headphone monomer due to direct contact with the test probe 112.

[0061] For a more detailed explanation of the above test process, please also refer to Figures 1 and 2 , Figure 2 FIG. 1 is a partial block diagram of an automatic headphone unit detection system 100 according to an embodiment of the present invention. Figure 2 As shown, the computer device 210 is electrically connected to the first robotic arm 110, the second robotic arm 120, the third robotic arm 130, the fourth robotic arm 140, the audio measuring device 170, the earphone unit position printing device 180 and the horizontal transmission device 192 to perform the above-mentioned and the following corresponding operations and / or controls.

[0062] During operation, the computer device 210 compares the difference between the frequency response curve of the headphone unit measured by the audio measurement device 170 and the frequency response curve of the standard. For example, the difference between the frequency response curve of the headphone unit measured by the audio measurement device 170 and the frequency response curve of the standard is allowed to have a tolerance range of approximately plus or minus 3 dB. Therefore, this tolerance range has a range of approximately 6 dB, with each 1 dB range further divided into a level, forming levels 1 through 6.

[0063] If the difference between the frequency response curve of the headphone driver measured by audio measurement device 170 and the standard product is greater than +3dB or less than -3dB, computer device 210 determines that the headphone driver measured by audio measurement device 170 is defective. Computer device 210 can further identify related issues (such as poor curve, high mid-frequency, etc.) based on the headphone driver's frequency response curve and determine the positive and negative polarity of the headphone driver's contacts.

[0064] Back to Figure 1 Architecturally, the third robotic arm 130 is mounted on a transverse rail assembly 150. The third robotic arm 130 includes a fixture 132 for the tested earphone unit. An earphone unit position printing device 180 is located beneath the third robotic arm 130. The first robotic arm 110 is positioned between the second robotic arm 120 and the third robotic arm 130. The audio measurement device 170 is located between the test earphone unit tray 160 and the earphone unit position printing device 180. In one embodiment of the present invention, the audio measurement device 170 is separated from the longitudinal rail assembly 155 to prevent vibrations from the rail from affecting the accuracy of the audio measurement device 170.

[0065] During use, the tested earphone unit fixture 132 can be extended and retracted from the third robotic arm 130, which moves along the transverse slide assembly 150. After the test is completed, the tested earphone unit fixture 132 of the third robotic arm 130 removes the earphone unit from the earphone unit receiving recess 172 of the audio measurement device 170 and places it in the earphone unit position printing device 180. The earphone unit position printing device 180 prints the corresponding position marking (e.g., a number, code, QR code, etc.) on the earphone unit. Furthermore, the earphone unit position printing device 180 can also mark the positive and negative polarity of the earphone unit contacts.

[0066] exist Figure 1 In the structure, the fourth robot arm 140 is arranged on the horizontal slide rail device 150. The fourth robot arm 140 has an earphone monomer gear classification fixture 142. The earphone monomer gear classification carrier 190 is arranged below the fourth robot arm 140. The horizontal transmission device 192 is arranged below the earphone monomer gear classification carrier 190.

[0067] During use, the earphone monomer position sorting fixture 142 can be extended and retracted from the fourth robotic arm 140, which moves along the transverse slide assembly 150. After the position printing is completed, the earphone monomer position sorting fixture 142 of the fourth robotic arm 140 removes the earphone monomer from the earphone monomer position printing device 180 and places it on the earphone monomer position sorting tray 190.

[0068] The horizontal transmission device 192 can make the earphone unit gear classification carrier 190 move along the horizontal direction. The aforementioned horizontal direction can be the normal vector of the horizontal direction of the horizontal slide rail device 150 and the longitudinal direction of the longitudinal slide rail device 155, so as to cooperate with the horizontal movement of the fourth robotic arm 140, so that the earphone unit can be accurately placed in the corresponding classification area on the earphone unit gear classification carrier 190.

[0069] For further explanation of the classification area of ​​the earphone unit gear classification carrier 190, please refer to Figures 1 to 3 , Figure 3 FIG. 1 is a top view of an earphone unit gear classification tray 190 according to an embodiment of the present invention. Figure 3 As shown, the earphone unit gear classification tray 190 includes classification areas 301-308.

[0070] When in use, classification area 301 is used to place the first gear headphone monomers, classification area 302 is used to place the second gear headphone monomers, classification area 303 is used to place the third gear headphone monomers, classification area 304 is used to place the fourth gear headphone monomers, classification area 305 is used to place the fifth gear headphone monomers, classification area 306 is used to place the sixth gear headphone monomers, classification area 307 is used to place headphone monomers with poor curves, and classification area 308 is used to place headphone monomers with high mid-frequency.

[0071] For a more detailed description of the structure of the earphone unit, please refer to Figures 1 to 4 , Figure 4 FIG is a three-dimensional cross-sectional view of an earphone unit 400 according to an embodiment of the present invention. Figure 4 As shown, the earphone unit 400 includes a magnet 410 , a washer 420 , a diaphragm 430 , a voice coil 440 , a protective cover 450 , an iron plate 460 , a protective adhesive 470 and a printed circuit board 480 .

[0072] In one embodiment of the present invention, the earphone unit position printing device 180 prints corresponding position markings (e.g., digital numbers, codes, QR codes, etc.) on the protective adhesive 470 of the earphone unit 400. Furthermore, the earphone unit position printing device 180 can also mark the positive and negative polarity of the earphone unit contacts.

[0073] In summary, the technical solution of the present invention has obvious advantages and beneficial effects compared with the prior art. Through the technical solution of the present invention, an automatic headphone unit detection system is realized, thereby saving manpower and improving detection accuracy.

[0074] Although the present invention has been disclosed above in terms of embodiments, this is not intended to limit the present invention. Anyone skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the appended claims.

Claims

1. An automatic detection system for earphone units, characterized in that: Include: a longitudinal slide rail device; a first robotic arm disposed on the longitudinal slide rail device, the first robotic arm having a test probe; an audio measurement device disposed below the first robotic arm, the audio measurement device having an earphone unit accommodating recess, the test probe being aligned with the earphone unit accommodating recess; a transverse slide rail device, arranged orthogonally to the longitudinal slide rail device; a second robotic arm disposed on the transverse slide rail device, the second robotic arm having a fixture for an earphone unit to be tested; A headphone unit carrier to be tested, disposed below the second robotic arm; a third robotic arm, disposed on the transverse slide rail device; an earphone unit position printing device, disposed below the third robotic arm; a fourth robotic arm, disposed on the transverse slide rail device; an earphone unit gear classification tray, disposed below the fourth robotic arm, the earphone unit gear classification tray comprising a plurality of classification areas; a computer device electrically connected to the first robotic arm, the audio measurement device, and the earphone unit position printing device; as well as A horizontal transmission device is provided below the earphone unit gear classification carrier. The headphone monomer fixture to be tested is telescopically moved from the second robotic arm to take out an headphone monomer from the headphone monomer loading tray. The second robotic arm moves along the transverse slide device, and the headphone monomer fixture to be tested of the second robotic arm places the headphone monomer in the headphone monomer accommodating recess of the audio measurement device. The first robotic arm moves along the longitudinal slide device, and the test probe of the first robotic arm is able to test the headphone monomer in the headphone monomer accommodating recess. The computer device compares the difference between the frequency response curve of the headphone monomer measured by the audio measurement device and the frequency response curve of the standard product. The difference between the frequency response curve of the headphone monomer measured by the audio measurement device and the frequency response curve of the standard product is allowed to have an allowable range of plus or minus 3dB, where each 1dB range is further divided into a gear. The headphone monomer gear printing device prints the corresponding gear mark on the headphone monomer. After the earphone monomer gear printing device prints the corresponding gear mark on the earphone monomer, the fourth robot arm takes out the earphone monomer from the earphone monomer gear printing device and places it in the corresponding classification area on the earphone monomer gear classification tray. The horizontal transmission device moves the headphone unit gear classification carrier along the horizontal direction, and the horizontal direction is the normal vector of the horizontal direction of the horizontal slide device and the longitudinal direction of the longitudinal slide device, so as to cooperate with the horizontal movement of the fourth robotic arm, so that the headphone unit can be placed in the corresponding classification area on the headphone unit gear classification carrier.

2. The automatic detection system for earphone units according to claim 1, characterized in that: The front end of the test probe is provided with a buffer device.

3. The automatic detection system for earphone units according to claim 1, characterized in that: The third mechanical arm has a tested earphone monomer fixture.

4. The automatic detection system for earphone units according to claim 1, characterized in that: The first robotic arm is located between the second robotic arm and the third robotic arm. The audio measuring device is located between the headphone monomer carrier to be tested and the headphone monomer position printing device. The audio measuring device is separately provided from the longitudinal slide rail device.

5. The automatic detection system for earphone units according to claim 1, characterized in that: The fourth mechanical arm has an earphone unit gear classification fixture.

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