CN216017163U - Stifled mark test fixture of integral type audio frequency - Google Patents

Abstract

The utility model discloses an integrated audio frequency blocking mark test fixture, which comprises a clamping component, a sound production component, a simulation ear and a first microphone blocking mechanism, wherein the first microphone blocking mechanism is used for blocking a microphone sound pickup hole of a tested product, and the simulation ear is used for receiving audio frequency sent by the tested product; centre gripping subassembly, sound production subassembly set up in the frame, wherein: the clamping assembly is used for clamping and positioning a tested product; be equipped with the sound insulating part in the frame, the sound insulating part is used for preventing that the sound production subassembly from passing through the frame with test sound to the mode of propagation in the solid transmits to the centre gripping subassembly and the centre gripping location is surveyed the product. The top plate, the bottom plate and the mounting plate of the rack are all provided with hollow grooves. The second microphone blocking mechanism is arranged on the mounting plate and used for blocking the other microphone sound pick-up hole of the tested product. This tool aims at setting up the sound insulating part to integration audio test equipment, prevents that the mode that the sound production subassembly will test sound and propagate in with the solid from transmitting to being surveyed product, artificial ear, improves test accuracy and test quality.

Description

Stifled mark test fixture of integral type audio frequency

Technical Field

The application relates to the technical field of electronic digital product detection devices, in particular to an integrated audio frequency plugging mark test fixture.

Background

Note that the contents described in this section do not represent all the related art.

The microphone is a common component arranged on an electronic digital product, and is usually arranged at a position corresponding to a sound pickup hole of a shell of the electronic digital product, and is used for receiving external sound. Before an electronic digital product is packaged and delivered from a factory, the function of a microphone is usually required to be tested to detect whether the microphone is qualified.

At present, a sounder for emitting test audio, a simulated ear for receiving the audio emitted by a loudspeaker of an electronic digital product and a tested electronic digital product are usually arranged on the same machine body, however, the test audio emitted by the sounder not only propagates in the air to reach the tested electronic digital product, but also reaches the tested electronic digital product from the machine body in a solid propagation manner and causes interference with the simulated ear; the existing testing equipment is not always aware of the important factors during design, so that the error of audio testing is large, and the quality of the testing level is difficult to improve.

Disclosure of Invention

The utility model discloses mainly to above problem, provide a stifled mark test fixture of integral type audio frequency, aim at solving above-mentioned problem, set up the sound insulation to integration audio frequency test equipment, improve test accuracy and test quality.

In order to achieve the above object, the utility model provides a stifled mark test fixture of integral type audio frequency, include: the microphone blocking device comprises a clamping component, a sound production component, a simulation ear and a first microphone blocking mechanism, wherein the first microphone blocking mechanism is used for blocking a microphone sound collecting hole of a tested product, and the simulation ear is used for receiving audio frequency sent by the tested product; centre gripping subassembly, sound production subassembly set up in the frame, wherein: the clamping assembly is used for clamping and positioning a tested product; be equipped with the sound insulating part in the frame, the sound insulating part is used for preventing the sound production subassembly passes through test sound the frame to the mode of propagating in the solid transmits extremely the product is surveyed to the centre gripping location that the centre gripping subassembly was held.

Furthermore, the machine frame comprises a top plate, a bottom plate and a first supporting upright post, and the clamping assembly and the first wheat blocking mechanism are arranged on the bottom plate; the sounding component is arranged on the top plate; the top plate and the bottom plate are connected through the first supporting upright post; wherein, the sound insulating part is arranged between the top plate and the first supporting upright post.

Furthermore, the rack also comprises a mounting plate and a second support upright post, and the mounting plate and the bottom plate are connected through the second support upright post; the clamping assembly and the first wheat plugging mechanism are both arranged on the mounting plate; wherein, be equipped with between mounting panel and the second support post sound insulating part.

Furthermore, the top plate, the bottom plate and the mounting plate are all provided with hollow grooves.

Further, the microphone plugging device comprises a second microphone plugging mechanism which is installed on the installation plate, and the second microphone plugging mechanism is used for plugging another microphone sound pick-up hole of a tested product.

Further, the sounding component comprises a support frame and a sounder; the support frame is connected with the top plate, the support frame is provided with an adjusting hole, and the sounder is in threaded connection with the support frame through the adjusting hole and is used for corresponding to the position of a tested product fixed on the clamping assembly; wherein, a graduated scale is arranged adjacent to the adjusting hole.

Furthermore, the clamping component is a positioning female die, the positioning female die is provided with a positioning groove for accommodating a product to be tested, and the positioning groove is provided with a sound through hole; the simulation ear is connected with the positioning female die, and the sound receiving end of the simulation ear is communicated with the sound through hole.

Furthermore, the first wheat blocking mechanism comprises a rotary pressing cylinder and a sealing gasket arranged at the power output end of the rotary pressing cylinder.

Furthermore, the second wheat blocking mechanism comprises a threaded cylinder and a sealing plug arranged at the power output end of the threaded cylinder.

Furthermore, the number of the clamping assemblies, the first wheat blocking mechanisms, the simulation ears and the second wheat blocking mechanisms is four groups which are correspondingly arranged; the bottom plate is provided with a shockproof foot pad.

Compared with the prior art, the utility model provides a pair of stifled mark test fixture of integral type audio frequency can improve test fixture's structure integration degree, is convenient for make the assembly, carries the positioning in same frame with the test component mounting. This stifled mark test fixture of integral type audio frequency is through setting up the sound insulating part in the frame, when the sound production subassembly sent sound and conduct along frame itself, the sound insulating part can prevent that the sound production subassembly from passing through the frame with test sound to the mode of propagating in the solid is transmitted to the centre gripping location that the centre gripping subassembly was surveyed product, simulation ear and is caused the interference, has improved test accuracy and test quality.

Drawings

Fig. 1 is this application an integral type audio frequency stifled mark test fixture structure sketch map.

Fig. 2 is a schematic view of a partial component overlooking three-dimensional structure of an integrated audio frequency blocking mark test fixture.

Fig. 3 is an enlarged view of fig. 2 at a.

Fig. 4 is this application an integral type audio frequency stifled mark test fixture's local cross-sectional view.

Fig. 5 is a schematic diagram of a rack structure of an integrated audio frequency plugging test fixture of the present application.

Reference numerals shown in the drawings: 1. a clamping assembly; 110. positioning the female die; 111. a positioning groove; 112. a sound through hole; 2. a sound producing assembly; 210. a support frame; 211. an adjustment hole; 212. a graduated scale; 220. a sound generator; 3. simulating a real ear; 4. a first wheat blocking mechanism; 410. rotating the pressing cylinder; 420. a gasket; 5. a frame; 510. a sound insulating member; 520. a top plate; 530. a base plate; 531. a shockproof foot pad; 540. a first support column; 550. mounting a plate; 560. a second support column; 570. hollowing out the grooves; 6. a second wheat blocking mechanism; 610. a threaded cylinder; 620. and (6) sealing the plug.

Detailed Description

The present invention will be described in detail below with reference to the attached drawings, and the technical solutions in the embodiments of the present invention will be clearly and completely described. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, the embodiment provides an integrated audio frequency blocking mark test fixture, which includes a clamping component 1, a sound production component 2, a simulation ear 3, and a first microphone blocking mechanism 4, wherein the first microphone blocking mechanism 4 is used for blocking a microphone sound pickup hole of a tested product, and the simulation ear 3 is used for receiving an audio frequency emitted by the tested product; centre gripping subassembly 1, sound production subassembly 2 set up in frame 5, wherein: the clamping assembly 1 is used for clamping and positioning a tested product; be equipped with noise insulation 510 on the frame 5, noise insulation 510 is used for preventing that sound generating component 2 from passing through frame 5 with test sound to the product of centre gripping location that centre gripping subassembly 1 was carried to the mode of propagating in the solid.

This integral type audio frequency stifled mark test fixture theory of operation: the clamping assembly 1 is utilized to clamp and position a tested product, the sounding assembly 2 is used to emit test sound, such as noise sound wave, a microphone of the tested product receives the test sound through a sound pickup hole, the tested product is provided with a self-contained loudspeaker, the simulated ear 3 is made of silica gel and simulates the ear of a human body, the simulated ear 3 receives the audio frequency of the loudspeaker of the tested product, and a test system (not shown) generates an audio frequency curve of the tested product under the condition that the microphone is not plugged according to the test requirement;

then, a microphone sound pickup hole of a tested product is plugged by a first microphone plugging mechanism 4, a test sound is emitted by a sound emitting component 2, the audio frequency of a loudspeaker of the tested product is received by a simulation ear 3, and a test system generates an audio frequency curve of the tested product in a microphone plugging state according to test requirements; the test system automatically compares the difference between the audio curves of the microphone which is not plugged by the tested product and the audio curve of the plugged microphone, judges whether the tested product is normal according to the test requirement of the product, completes the test and takes and replaces the tested product. And the test data result is subsequently connected with a computer for display, the system automatically judges whether the tested product is qualified or not, and the test data can be stored, inquired and uploaded to an MES (manufacturing execution system) system, so that the intelligent manufacturing requirement is met.

Install centre gripping subassembly 1, sound production subassembly 2 on frame 5, improve this test fixture's structure integration degree, be convenient for make the assembly, carry the positioning. The microphone of the tested product receives the test sound from the sound production assembly 2, the sound transmitted by the air as a medium is received by the similar human ear, the test sound is transmitted through the air, the clamping assembly 1 and the sound production assembly 2 are connected into a whole through the rack 5, the rack 5 can also become the medium for transmitting the sound by the sound production assembly 2, the rack 5 is used as a solid, the sound is transmitted to the clamping assembly 1 in the solid in a mode of transmitting the sound, the tested product and/or the simulated ear 3 are clamped and positioned, and the influence on the accuracy of the test result cannot be ignored. In the existing audio test, the phenomenon is often unexpected, so that the test is inaccurate, and the quality is difficult to ensure. This stifled mark test fixture of integral type audio frequency is through setting up noise insulation 510 in frame 5, when sound production subassembly 2 sent sound along frame 5 itself and conducts, noise insulation 510 can prevent that sound production subassembly 2 from passing through frame 5 with test sound to the mode of propagating in the solid is transmitted to the product is surveyed to centre gripping subassembly 1 centre gripping location, improves test accuracy and test quality. Preferably, the sound insulation member 510 is made of silicone rubber or silicone composite material to block the frame 5 from transmitting sound in a solid-borne manner.

So, this integral type test fixture can carry out simultaneous test with the microphone functional test of the product of being surveyed, the loudspeaker sound function of the product of being surveyed, utilizes sound insulating part 510 separation interference sound wave, and multiple test integration can practice thrift equipment cost on same test fixture, improves efficiency of software testing.

Referring to fig. 1 and 4, the frame 5 includes a top plate 520, a bottom plate 530, and a first supporting upright 540, and the clamping assembly 1 and the first wheat blocking mechanism 4 are mounted on the bottom plate 530; the sound production unit 2 is mounted on the top plate 520; the top plate 520 and the bottom plate 530 are connected by a first support column 540; wherein the sound insulator 510 is disposed between the top plate 520 and the first support pillar 540.

The frame 5 is formed by combining the top plate 520, the bottom plate 530 and the first supporting upright 540, and is used as a carrier for mounting each component, so that the structural stability is ensured, and the sound insulation member 510 is reasonably arranged between the top plate 520 and the first supporting upright 540.

Referring to fig. 1, 2 and 4, the frame 5 further includes a mounting plate 550 and a second support column 560, wherein the mounting plate 550 and the bottom plate 530 are connected by the second support column 560; the clamping assembly 1 and the first wheat plugging mechanism 4 are both arranged on the mounting plate 550; wherein a sound insulator 510 is disposed between the mounting plate 550 and the second support post 560.

Specifically, frame 5 still includes mounting panel 550, and clamping component 1, first stifled wheat mechanism 4 are all installed on mounting panel 550, and mounting panel 550, bottom plate 530 are connected through second support post 560, also are equipped with noise insulation 510 between mounting panel 550 and the second support post 560 in addition, through this kind of second grade two-stage sound insulation design, further prevent that frame 5 from becoming the medium that sound production subassembly 2 sent the sound conduction, improve test accuracy and test quality.

Referring to fig. 1, 2 and 5, the top plate 520, the bottom plate 530 and the mounting plate 550 are all provided with a hollow groove 570.

The top plate 520, the bottom plate 530 and the mounting plate 550 are used as structural parts of the rack 5, the hollow-out groove 570 is arranged under the condition of ensuring the strength, the design is naked as far as possible, the reflection of the test audio emitted by the sounding component 2 is greatly reduced, the interference is greatly reduced, and the test effect is ensured.

Referring to fig. 1-4, the microphone testing device includes a second microphone plugging mechanism 6 mounted on the mounting plate 550, and the second microphone plugging mechanism 6 is used for plugging another microphone sound pickup hole of the tested product.

Some high-end electronic digital products have two microphones for receiving sound and achieving the purpose of noise reduction after processing. This stifled mark test fixture of integral type audio frequency corresponds sets up first stifled microphone mechanism 4, stifled microphone mechanism 6 of second and blocks up two microphone pickups of being surveyed electronic digital product respectively and tests.

Referring to fig. 1 and 4, the sound generating assembly 2 includes a support frame 210 and a sound generator 220; the supporting frame 210 is connected with the top plate 520, the supporting frame 210 is provided with an adjusting hole 211, and the sounder 220 is in threaded connection with the supporting frame 210 through the adjusting hole 211 and is used for enabling the sounder 220 to correspond to the position of a product to be detected fixed on the clamping assembly 1; wherein a scale 212 is provided adjacent to the adjustment hole 211.

The adjusting hole 211 is an oblong hole, the sound generator 220 can be adjusted to a distance corresponding to the clamped and positioned tested product of the clamping assembly 1 along the length direction of the adjusting hole 211, the sound generator 220 is fixed with the support frame 210 through threaded connection by a screw (not shown), and the sound generator 220 can rotate relative to the support frame 210 to adjust the angle before being fixed with the adjusting hole 211 of the support frame 210 by the screw. Therefore, the sounder 220 can be adjusted in height direction and rotation, and has high flexibility and mobility. Preferably, the sounder 220 is a manual mouth. The graduated scale 212 is arranged at the position adjacent to the adjusting hole 211, so that the sounder 220 can be more conveniently, rapidly and accurately indicated relative to the distance position of the clamping assembly 1, can be accurately adjusted to a preset position, and meets the test requirements of tested products of different models and specifications.

Referring to fig. 2-4, the clamping assembly 1 is a positioning concave die 110, the positioning concave die 110 is provided with a positioning groove 111 for accommodating a product to be tested, and the positioning groove 111 is provided with a sound through hole 112; the simulated ear 3 is connected with the positioning concave die 110, and the sound receiving end of the simulated ear 3 is communicated with the sound through hole 112.

Preferentially, the positioning concave die 110 is made of silica gel which has certain softness and wrapping friction, so that the positioning groove 111 can prevent the shell of a detected product from being scratched when clamping and positioning and has a good fixing and clamping effect; the sound receiving end of the artificial ear 3 is directly communicated with the sound through hole 112, so that the interference of receiving external noise is prevented, and the test accuracy is improved; the sound insulation member 510 also prevents the test sound wave of the sound generator 220 from being transmitted from the frame 5 to the positioning concave die 110 and further transmitted to the artificial ear 3 to a certain extent, so that the test accuracy is not affected.

Referring to fig. 2-4, the first wheat blocking mechanism 4 includes a rotary pushing cylinder 410, and a sealing gasket 420 installed at a power output end of the rotary pushing cylinder 410.

Rotatory air cylinder 410 is pushed down also known as corner cylinder, and its power take off end has rotatory lift function, can realize driving sealed pad 420 lid and close the microphone sound collecting hole of shutoff product to be surveyed, and sealed pad 420 preferred material is silica gel, has good sound insulation performance and certain compliance, prevents to press to hinder the product to be surveyed. Because rotatory air cylinder 410 is in the operation in-process, certain operation noise has, rotatory air cylinder 410 is installed on frame 5 again, form whole test fixture's resonance easily, produce and disturb audio test problem, and noise insulation 510 not only prevents for frame 5 that sound production subassembly 2 and clamping component 1 from producing bad solid propagation sound, and play this moment and inhale shake the cushioning effect, solve simultaneously sound production subassembly 2 sound and rotatory air cylinder 410 resonance conduction interference audio problem that forms in service, make the test result more accurate.

The rotary pushing cylinder 410 carries the sealing gasket 420 to be away from the clamping component 1 in the initial state, so that an operator can conveniently and unimpededly load a tested product into the positioning groove 111 of the positioning concave die 110, and then pushes down when plugging a microphone sound picking hole of the tested product.

Referring to fig. 2-4, the second wheat plugging mechanism 6 includes a threaded cylinder 610 and a sealing plug 620 mounted on a power output end of the threaded cylinder 610.

Threaded cylinder 610 has smallly, and the installation of being convenient for, this integral type audio frequency of adaptation that can be nimble blocks up mark test fixture shutoff is picked up the function in sound hole by another microphone of surveying the product, and sealed end cap 620 preferred material is silica gel, and threaded cylinder 610 power take off end drives sealed end cap 620, simulates the staff when the sound hole is picked up in the shutoff, avoids the fish tail product. Because threaded cylinder 610 has certain operation noise at the operation in-process, threaded cylinder 610 installs again in frame 5, forms whole test fixture's resonance easily, produces and disturbs the audio frequency test problem, and noise insulation 510 can play this moment and inhale shake cushioning effect, solves the resonance conduction interference audio frequency problem that sound production subassembly 2 sound and threaded cylinder 610 formed in service simultaneously, makes the test result more accurate.

The jig for automatically plugging and testing the audio frequency by utilizing the pneumatic mechanical components of the rotary pressing cylinder 410 and the threaded cylinder 610 reduces the labor intensity of manually plugging and picking up the sound holes, and is high in testing efficiency.

Referring to fig. 1 and 2, fig. 4 and 5, the number of the clamping assembly 1, the first wheat blocking mechanism 4, the dummy ear 3 and the second wheat blocking mechanism 6 is four groups correspondingly arranged; the bottom plate 530 is provided with a shock-proof foot pad 531.

Centre gripping subassembly 1, first stifled wheat mechanism 4, artificial ear 3, 6 four groups that the stifled wheat mechanism quantity of second set up for corresponding, can utilize same sound production subassembly 2 to test four tested products simultaneously, the efficiency of software testing is high, the rational use of resources, energy-concerving and environment-protective, the shockproof callus on the sole 531 that bottom plate 530 bottom set up, the material is preferably silica gel, can be for the sound of vocal ware 220, rotatory cylinder 410 that pushes down, the operation of threaded cylinder 610, external environment arouses resonance sound to disturb and plays and inhale shake cushioning effect, make the test result more accurate.

The present invention is not limited to the above embodiments, and any embodiments mentioned in the description fall within the scope of the present invention.

It is right to have used specific individual example above the utility model discloses expound, only be used for helping to understand the utility model discloses, not be used for the restriction the utility model discloses. To the technical field of the utility model technical personnel, the foundation the utility model discloses an idea can also be made a plurality of simple deductions, warp or replacement.

Claims (10)

1. The integrated audio frequency blocking mark test fixture is characterized by comprising a clamping component, a sound production component, a simulation ear and a first microphone blocking mechanism, wherein the first microphone blocking mechanism is used for blocking a microphone sound pickup hole of a tested product, and the simulation ear is used for receiving audio frequency emitted by the tested product; centre gripping subassembly, sound production subassembly set up in the frame, wherein: the clamping assembly is used for clamping and positioning a tested product; be equipped with the sound insulating part in the frame, the sound insulating part is used for preventing the sound production subassembly passes through test sound the frame to the mode of propagating in the solid transmits extremely the product is surveyed to the centre gripping location that the centre gripping subassembly was held.

2. The integrated audio blocking mark test fixture according to claim 1, wherein the rack comprises a top plate, a bottom plate and a first support upright post, and the clamping assembly and the first blocking mark mechanism are mounted on the bottom plate; the sounding component is arranged on the top plate; the top plate and the bottom plate are connected through the first supporting upright post; wherein, the sound insulating part is arranged between the top plate and the first supporting upright post.

3. The integrated audio frequency blocks up mark test fixture of claim 2, characterized in that, the frame still includes mounting panel, second support post, mounting panel, bottom plate pass through the second support post connection; the clamping assembly and the first wheat plugging mechanism are both arranged on the mounting plate; wherein, be equipped with between mounting panel and the second support post sound insulating part.

4. The integrated audio frequency blockage mark test jig according to claim 3, wherein the top plate, the bottom plate and the mounting plate are all provided with hollow grooves.

5. The integrated audio frequency blocking mark test fixture according to claim 3, comprising a second blocking mechanism installed on the mounting plate, wherein the second blocking mechanism is used for blocking another microphone sound pickup hole of a tested product.

6. The integrated audio frequency blocks up mark test fixture of claim 2, characterized in that, the sound production subassembly includes support frame, sounder; the support frame is connected with the top plate, the support frame is provided with an adjusting hole, and the sounder is in threaded connection with the support frame through the adjusting hole and is used for corresponding to the position of a tested product fixed on the clamping assembly; wherein, a graduated scale is arranged adjacent to the adjusting hole.

7. The integrated audio frequency plugging mark test fixture according to claim 1, wherein the clamping component is a positioning concave die, the positioning concave die is provided with a positioning groove for accommodating a product to be tested, and the positioning groove is provided with a sound through hole; the simulation ear is connected with the positioning female die, and the sound receiving end of the simulation ear is communicated with the sound through hole.

8. The integrated audio frequency plugging mark test fixture according to claim 1, wherein the first plugging mark mechanism comprises a rotary down-pressing cylinder and a sealing gasket arranged at a power output end of the rotary down-pressing cylinder.

9. The integrated audio frequency plugging mark test fixture according to claim 5, wherein the second plugging mark mechanism comprises a threaded cylinder and a sealing plug installed at a power output end of the threaded cylinder.

10. The integrated audio frequency blocks up mark test fixture of claim 5, characterized in that, the centre gripping subassembly, first stifled wheat mechanism, artificial ear, second stifled wheat mechanism quantity is four groups that set up correspondingly; the bottom plate is provided with a shockproof foot pad.

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