Detection tool for earphone mask

Abstract

The utility model discloses earphone face shield's detection frock, earphone face shield includes cover body, and cover body has mounting hole and joint part, and joint part has first joint position and second joint position, and the minimum allowable value of first joint position to mounting hole is minimum limit value, and the maximum allowable value of second joint position to mounting hole is maximum limit value, and detection frock includes detection platform, is equipped with a plurality of recesses for joint part to stretch into and the convex part that can stretch into mounting hole, recess has first detection position and second detection position, and the distance of any first detection position to convex part is equal to the minimum limit value of corresponding first joint position, and the distance of any second detection position to convex part is equal to the maximum limit value of corresponding second joint position. In the utility model, the position and size of joint part and the position and size of mounting hole can be detected simultaneously, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a sound-generating device, and more particularly to a testing fixture for headphone covers. Background Technology

[0002] Headphones typically feature a decorative face shield that snaps onto the headphone housing, and the connection is sealed with adhesive. The edge of the face shield is fitted into the housing. If the face shield is too large, it will arch after fitting, creating a height difference between it and the housing, or even prevent it from fitting at all. If the face shield is too small, there will be a large gap between it and the housing, resulting in incomplete sealing after adhesive application and insufficient bonding strength between the face shield and the housing. Additionally, the face shield needs to have openings for mounting the microphone, and these openings must be positioned according to a predetermined plan. Therefore, it is necessary to test the size of the face shield and the location of the openings.

[0003] However, in existing technologies, the size of the mask and the position of the openings are detected separately, making it difficult to integrate the two for simultaneous detection, resulting in low detection efficiency. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the technical problem to be solved by this utility model is to propose a testing fixture for headphone covers, which can solve the problem that the size and opening position of headphone covers cannot be detected simultaneously in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is a testing fixture for an earphone cover. The earphone cover includes a cover body with a mounting hole for mounting a microphone. The edge of the cover body is provided with a plurality of engaging parts for engaging with a housing for an earphone. Each engaging part has a first engaging position located near the mounting hole and a second engaging position located away from the mounting hole. The distance from any first engaging position to the center of the mounting hole has a minimum limit value, and the distance from any second engaging position to the center of the mounting hole has a maximum limit value. The testing fixture includes a testing platform with a plurality of recesses for the engaging parts to extend into and protrusions that can extend into the mounting hole. The positions and numbers of the plurality of recesses correspond one-to-one with the plurality of engaging parts.

[0006] The recess has a first detection position located near the side of the protrusion and a second detection position located away from the side of the protrusion. The distance from any first detection position to the center of the protrusion is equal to the minimum limit value corresponding to the first engagement position, and the distance from any second detection position to the center of the protrusion is equal to the maximum limit value corresponding to the second engagement position.

[0007] This utility model has at least the following beneficial effects:

[0008] Multiple recesses and protrusions are simultaneously set on the testing platform. The distance from the first testing position of the recess to the center of the protrusion is equal to the minimum limit value of the corresponding latching part, and the distance from the second testing position of the recess to the center of the protrusion is equal to the maximum limit value of the corresponding latching part. During the testing process, the headphone mask is aligned with the testing platform, and the latching parts are attempted to be inserted into the recesses. If all the latching parts of the headphone mask can simultaneously extend into multiple protrusions on the testing platform, and the recesses can also extend into the mounting holes, it indicates that the dimensions of the latching parts are within the allowable tolerance range, the position of the latching parts is correct, and the position of the mounting holes is within the preset area, thus the product is deemed qualified. If the headphone mask cannot be inserted into the testing platform (including cases where the latching parts cannot extend into the recesses, and / or the protrusions cannot extend into the mounting holes), it indicates that the dimensions and / or positions of the latching parts, and / or the dimensions and / or positions of the mounting holes exceed the tolerance range, thus the product is deemed unqualified. In this way, the position and dimensions of the latching parts, as well as the position and dimensions of the mounting holes, can be tested simultaneously, improving testing efficiency.

[0009] Furthermore, the plurality of said snap-fit ​​portions are spaced apart, and the plurality of said recesses are spaced apart.

[0010] Furthermore, the headphone cover also includes a skirt surrounding the cover body, the skirt having a plurality of continuous or spaced snap-fit ​​portions;

[0011] The testing station is provided with a testing groove, which has multiple consecutive or spaced recesses.

[0012] Furthermore, the depth of the recess is greater than or equal to the height of the snap-fit ​​portion.

[0013] Furthermore, the detection stage has a detection surface, and the detection surface is recessed inward to form the recess;

[0014] The cover has a positioning surface, and the snap-fit ​​part protrudes from the positioning surface. When the positioning surface abuts against the detection surface, the snap-fit ​​part extends partially or completely into the recess.

[0015] Furthermore, the detection stage has a detection surface, which is recessed inward to form a plurality of recesses, which are connected end to end to form an annular groove.

[0016] Furthermore, the detection surface has a first region outside the annular groove and a second region inside the annular groove. The second region is configured as an arc surface that can be attached to the inner surface of the cover, or the second region and the first region are on the same plane.

[0017] Furthermore, the detection surface has a first region outside the annular groove and a second region inside the annular groove;

[0018] The detection surface has multiple lines passing through the center of the protrusion. The lines intersect the edge of the second region at a first point and a second point. The distance from the first point to the center of the protrusion is greater than the distance from the second point to the center of the protrusion.

[0019] Furthermore, the protrusion can be detachably connected to the detection stage or formed into an integral structure.

[0020] Furthermore, it includes at least two detection stations, which are used to detect the earphone covers located in the left ear and the right ear, respectively.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 This is a schematic diagram of the structure of the earphone cover and the testing fixture for the left and right ears in this embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the earphone cover and the testing fixture in an embodiment of this utility model;

[0025] Figure 3 This is a structural schematic diagram of the headphone cover from one perspective in an embodiment of this utility model;

[0026] Figure 4 This is a structural schematic diagram of the headphone cover from another perspective in an embodiment of this utility model;

[0027] Figure 5 This is a cross-sectional view of the earphone cover and the testing fixture in an embodiment of this utility model;

[0028] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0029] Figure label:

[0030] 100, Inspection table; 110, Recess; 120, Protrusion; 130, Inspection surface; 131, First area; 132, Second area; 200, Earphone cover; 210, Mounting hole; 220, Snap-fit ​​part; 230, Positioning surface. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] In the description of this utility model, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Please refer to Figures 2-4, the present utility model discloses a detection tool for an earphone mask. The earphone mask 200 includes a mask body, the mask body has a mounting hole 210 for mounting an earphone microphone, and a plurality of clamping portions 220 for clamping with a housing for an earphone are provided at the edge of the mask body. The clamping portion 220 has a first clamping position on the side close to the mounting hole 210 and a second clamping position on the side背离 the mounting hole 210. The distance from any first clamping position to the center of the mounting hole 210 has a minimum limit value, and the distance from any second clamping position to the center of the mounting hole 210 has a maximum limit value. The detection tool includes: a detection table 100, which is provided with a plurality of recesses 110 for the clamping portions 220 to extend into and a protrusion 120 that can extend into the mounting hole 210. The positions and numbers of the plurality of recesses 110 correspond to those of the plurality of clamping portions 220 one by one;

[0037] Among them, the recess 110 has a first detection position on the side close to the protrusion 120 and a second detection position on the side背离 the protrusion 120. The distance from any first detection position to the center of the protrusion 120 is equal to the minimum limit value of the corresponding first clamping position, and the distance from any second detection position to the center of the protrusion 120 is equal to the maximum limit value of the corresponding second clamping position.

[0038] Specifically, in this case, a plurality of recesses 110 and protrusions 120 are simultaneously provided on the detection table 100, and the distance from the first detection position of the recess 110 to the center of the protrusion 120 is equal to the minimum limit value of the corresponding clamping portion 220, and the distance from the second detection position of the recess 110 to the center of the protrusion 120 is equal to the maximum limit value of the corresponding clamping portion 220. During the detection process, the earphone mask 200 is aligned with the detection table 100, and the clamping portions 220 are tried to be placed into the recesses 110. If all the clamping portions 220 of the earphone mask 200 can simultaneously extend into the plurality of protrusions 120 on the detection table 100, and the recesses 110 can also extend into the mounting hole 210, it indicates that the size of the clamping portion 220 is within the allowable tolerance range, the position of the clamping portion 220 is correct, and at the same time, the position of the mounting hole 210 is within the preset area, and the product is determined to be qualified; if the earphone mask 200 cannot be placed on the detection table 100 (including the situation where some clamping portions 220 cannot extend into the recesses 110, and / or the protrusions 120 cannot extend into the mounting hole 210), it indicates that the size and / or position of the clamping portion 220, and / or the size / and / or position of the mounting hole 210 exceed the tolerance range, and the product is determined to be unqualified. In this way, the position and size of the clamping portion 220, as well as the position and size of the mounting hole 210, can be detected simultaneously, improving the detection efficiency.

[0039] It should be noted that the first clamping position and the second clamping position refer to the positions that come into contact with and receive force from the earphone housing when the earphone mask 200 is clamped into the earphone housing. This part of the clamping position provides a pre-tightening force to tightly fit the earphone mask 200 on the earphone housing.

[0040] It should also be noted that the number and position of the recesses 110 are designed according to the number and position of the latching portions 220 on the headphone faceplate 200, so that each latching portion 220 has a recess 110 corresponding to its position; at the same time, each latching portion 220 has one or more first latching positions and one or more second latching positions, and the corresponding recesses 110 have one or more first detection positions and one or more second detection positions. Of course, the position and number of the mounting holes 210 and the protrusions 120 are also the same.

[0041] Following the above, the position and number of recesses 110 are set according to the position and number of latching parts 220. When the edge of the headphone cover 200 has multiple latching parts 220 spaced apart, multiple recesses 110 spaced apart can be opened on the testing table 100, so that multiple latching parts 220 can simultaneously extend into the corresponding recesses 110 to detect the position and size of multiple latching parts 220.

[0042] Following the above, the position and number of recesses 110 are set accordingly based on the position and number of snap-fit ​​parts 220. Please refer to... Figure 4 The headphone cover 200 includes a skirt surrounding the cover body, and the skirt has a plurality of continuous or spaced snap-fit ​​portions 220; the detection platform 100 is provided with a detection groove, and the detection groove has a plurality of continuous or spaced recesses 110. When the plurality of snap-fit ​​portions 220 are connected end to end, the detection groove is arranged in a ring groove shape.

[0043] Please refer to Figure 6 In order to ensure that the snap-fit ​​portion 220 can extend into the recess 110 to a sufficient depth so that the recess 110 can play an effective detection role, this embodiment sets the depth of the recess 110 to be greater than or equal to the height of the snap-fit ​​portion 220, so that all the first snap-fit ​​positions and all the second snap-fit ​​positions of the snap-fit ​​portion 220 are within the recess 110.

[0044] Please refer to Figure 5 and Figure 6To facilitate quick operator judgment on whether the latching portion 220 of the headphone cover 200 extends into the recess 110 on the testing platform 100, the testing platform 100 is configured with a testing surface 130, which is recessed inward to form the recess 110. The cover has a positioning surface 230, and the latching portion 220 protrudes from the positioning surface 230. When the positioning surface 230 abuts against the testing surface 130, the latching portion 220 partially or completely extends into the recess 110. During testing, the operator picks up the headphone cover 200, aligns the latching portion 220, and gradually extends it into the recess 110. If the latching portion 220 can smoothly extend into the recess 110 until the testing surface 130 abuts against the positioning surface 230, it indicates that the latching portion 220 has completely extended into the recess 110, and the protrusion 120 also extends into the positioning hole at the same time, indicating that the product is qualified. Therefore, by checking whether the positioning surface 230 and the detection surface 130 are in contact, it is possible to quickly determine whether the headphone mask 200 has reached the predetermined depth of the detection stage 100, thus avoiding false detections where the headphone mask 200 is judged to be qualified even when it has not reached a sufficient depth. Of course, the bottom surface of the recess 110 can also be used to abut against the end face of the latching part 220, allowing the operator to quickly determine whether the latching part 220 has reached the bottom of the recess 110.

[0045] Please refer to Figure 2 In this embodiment, the detection stage 100 has a detection surface 130, which is recessed inward to form a plurality of recesses 110, which are connected end to end to form an annular groove.

[0046] In this embodiment, the detection surface 130 has a first region 131 outside the annular groove and a second region 132 inside the annular groove. The second region 132 is configured as an arc surface that can be attached to the inner surface of the cover, or the second region 132 and the first region 131 are on the same plane.

[0047] Specifically, the second region 132 is configured as an arc surface that can fit against the inner surface of the cover. This allows the inspection table 100 to inspect the inner surface of the cover while inspecting the snap-fit ​​part 220 and the mounting hole 210. By determining whether the inner surface of the cover fits against the second region 132, it can be determined whether the curvature of the inner surface of the cover is within the allowable tolerance range. Alternatively, both the first region 131 and the second region 132 can be configured as planes, and both can be on the same plane. In this case, when processing the inspection table 100, only a groove needs to be machined on the same plane of the material to form the first region 131, the second region 132, and the annular groove. This makes the processing of the inspection table 100 more convenient and lower in cost.

[0048] Please refer to the following explanation. Figure 3The headphone faceplate 200 is roughly equilateral triangular in shape. The curvature of its three curved sides differs slightly, making it difficult for operators to discern with the naked eye. When inspecting the faceplate 200, it's challenging to quickly determine which curved side should be used as the base and insert it into the groove at the correct angle. This can lead to incorrect placement, preventing the skirt from inserting properly and resulting in a false judgment that the product is defective.

[0049] Based on the above-mentioned defects, this embodiment makes the following settings: the detection surface 130 has a first region 131 outside the annular groove and a second region 132 inside the annular groove; the detection surface 130 has multiple lines passing through the center of the protrusion 120, and the lines have a first intersection point and a second intersection point with the edge of the second region 132. The distance from the first intersection point to the center of the protrusion 120 is greater than the distance from the second intersection point to the center of the protrusion 120.

[0050] Specifically, in this case, there are multiple lines passing through the center of the protrusion 120. These lines use the center of the protrusion 120 as a dividing point. The distance from the dividing point to the first intersection point is greater than the distance to the second intersection point, causing the dividing point to deviate from the center of the second region 132. That is, the protrusion 120 deviates from the center of the second region 132. The advantage of this design is that, utilizing the off-center position of the mounting hole 210 already present on the headphone cover 200, simply rotating the headphone cover 200 until the mounting hole 210 aligns with the protrusion 120 will place the headphone cover 200 at the correct angle. This allows operators to quickly determine the placement direction of the headphone cover 200, ensuring it is placed at the correct angle on the testing table 100 and inserted for testing. This avoids misjudgments caused by incorrect operation and increases the difficulty of the testing operation.

[0051] In this embodiment, the protrusion 120 and the detection stage 100 can be detachably connected or formed into an integral structure.

[0052] Specifically, the protrusion 120 and the inspection table 100 can be integrally formed or detachable. For example, a flat surface can be machined on a piece of material, and then an annular groove can be cut into the flat surface. Finally, the cylindrical component can be detachably connected to the second region 132 to form the protrusion 120, thereby completing the manufacturing of the inspection table 100 and reducing manufacturing costs.

[0053] Please refer to Figure 1 In this embodiment, at least two detection stations 100 are included, which are used to detect the earphone mask 200 located in the left ear and the right ear respectively.

[0054] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.

Claims

1. A testing fixture for an earphone face shield, the earphone face shield comprising a cover body having a mounting hole for mounting a microphone, the edge of the cover body having a plurality of engaging portions for engaging with a housing for an earphone, the engaging portions having a first engaging position located near the mounting hole and a second engaging position located away from the mounting hole, wherein the distance from any first engaging position to the center of the mounting hole has a minimum limit value, and the distance from any second engaging position to the center of the mounting hole has a maximum limit value, characterized in that... The testing fixture includes: a testing table, which has multiple recesses for the snap-fit ​​parts to extend into and protrusions that can extend into the mounting holes, wherein the positions and numbers of the multiple recesses correspond one-to-one with the multiple snap-fit ​​parts; The recess has a first detection position located near the side of the protrusion and a second detection position located away from the side of the protrusion. The distance from any first detection position to the center of the protrusion is equal to the minimum limit value corresponding to the first engagement position, and the distance from any second detection position to the center of the protrusion is equal to the maximum limit value corresponding to the second engagement position.

2. The testing fixture for the headphone face shield according to claim 1, characterized in that, The plurality of said snap-fit ​​portions are spaced apart, and the plurality of said recesses are spaced apart.

3. The testing fixture for the headphone face shield according to claim 1, characterized in that, The headphone cover also includes a skirt surrounding the cover body, and the skirt has a plurality of continuous or spaced snap-fit ​​portions; The testing station is provided with a testing groove, which has multiple consecutive or spaced recesses.

4. The testing fixture for the headphone face shield according to claim 1, characterized in that, The depth of the recess is greater than or equal to the height of the snap-fit ​​portion.

5. The testing fixture for the headphone face shield according to claim 1, characterized in that, The detection stage has a detection surface, and the detection surface is recessed inward to form the recess; The cover has a positioning surface, and the snap-fit ​​part protrudes from the positioning surface. When the positioning surface abuts against the detection surface, the snap-fit ​​part extends partially or completely into the recess.

6. The testing fixture for the headphone face shield according to claim 1, characterized in that, The testing station has a testing surface, which is recessed inward to form a plurality of recesses, which are connected end to end to form an annular groove.

7. The testing fixture for the headphone face shield according to claim 6, characterized in that, The detection surface has a first region outside the annular groove and a second region inside the annular groove. The second region is configured as an arc surface that can be attached to the inner surface of the cover, or the second region and the first region are on the same plane.

8. The testing fixture for the headphone face shield according to claim 6, characterized in that, The detection surface has a first region outside the annular groove and a second region inside the annular groove; The detection surface has multiple lines passing through the center of the protrusion. The lines intersect the edge of the second region at a first point and a second point. The distance from the first point to the center of the protrusion is greater than the distance from the second point to the center of the protrusion.

9. The testing fixture for the headphone face shield according to claim 1, characterized in that, The protrusion can be detachably connected to the detection stage or formed into an integral structure.

10. The testing fixture for the headphone face shield according to claim 1, characterized in that, It includes at least two detection stations, which are used to detect the earphone covers located on the left ear and the right ear, respectively.

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