CN217064010U

CN217064010U - Positioning tool for vibrating diaphragm test

Info

Publication number: CN217064010U
Application number: CN202220452862.8U
Authority: CN
Inventors: 王健; 吴玉国
Original assignee: Changzhou Xingyu Electronic Technology Co ltd
Current assignee: Changzhou Xingyu Electronic Technology Co ltd
Priority date: 2022-03-03
Filing date: 2022-03-03
Publication date: 2022-07-26
Anticipated expiration: 2032-03-03

Abstract

The utility model belongs to the technical field of the speaker testing arrangement technique and specifically relates to a location frock is used in vibrating diaphragm test, including the test pressure disk, open at test pressure disk middle part has the test hole, and the test hole periphery is equipped with the step that is used for placing the vibrating diaphragm that awaits measuring, and the step top is equipped with movable positioning gasket, and the assembly groove has been seted up to the step periphery, and the assembly groove is arranged in to movable positioning gasket, and the vibrating diaphragm that awaits measuring that the messenger was arranged in on the step is fixed between movable positioning gasket and assembly groove, and the upper surface of step covers there is the cotton layer of bubble, and movable positioning gasket middle part corresponds the test hole and opens there is the through-hole, and the through-hole is greater than the test hole. This location frock is through setting up the placing of the convenient vibrating diaphragm that awaits measuring of step to utilize movable positioning gasket to fix it, when making things convenient for the vibrating diaphragm to place, effectively fix a position the vibrating diaphragm that awaits measuring, and effectively solved the problem of the cotton laminating difficulty of narrow limit bubble.

Description

Positioning tool for vibrating diaphragm test

Technical Field

The utility model belongs to the technical field of the speaker testing arrangement technique and specifically relates to a location frock is used in vibrating diaphragm test.

Background

Under the premise of no distortion and no other sound abnormity, the frequency range of the loudspeaker capable of normally playing is called the playing frequency band of the loudspeaker, and the playing frequency band is the frequency range reaching the set constant sound pressure from the resonance frequency of the bass band to the resonance frequency of the treble band.

In the detection process of the loudspeaker, the diaphragm is usually tested indirectly, the tested diaphragm is fixed right above the loudspeaker, and the loudspeaker is driven by sine signals from low frequency to high frequency to vibrate along with the diaphragm, so that the playing frequency band of the loudspeaker is detected. For example, application number CN201520550383.X, application date 2015 year 7 month 28, the name is the patent of "a cone inspection jig", this inspection jig sets up the test hole in the middle part of the pressure disk, then set up the step that is used for placing the vibrating diaphragm in the test hole periphery, but the veneer frame of the big amplitude speaker vibrating diaphragm of super linearity is narrower, sealed the difficulty that causes with the laminating of vibrating diaphragm frame to test pressure disk, easily cause vibrating diaphragm gas leakage phenomenon, traditional solution is at step upper surface laminating bubble cotton, but the step that corresponds the narrow limit of vibrating diaphragm and set up is extremely narrow, the laminating degree of difficulty is big.

SUMMERY OF THE UTILITY MODEL

Be used for placing the step of vibrating diaphragm narrower in order to solve current tool, lead to the cotton laminating difficulty of bubble to influence the problem of test result, the utility model provides a vibrating diaphragm test is with location frock through set up movable positioning gasket above the assembly groove, when fixing a position the vibrating diaphragm that awaits measuring, solves the trouble problem of the cotton laminating of bubble, avoids appearing vibrating diaphragm gas leakage phenomenon.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a vibrating diaphragm test is with location frock, including the test pressure disk, open at test pressure disk middle part has the test hole, the test hole periphery is equipped with the step that is used for placing the vibrating diaphragm that awaits measuring, the step top is equipped with the movable positioning gasket, the assembly groove has been seted up to the step periphery, the assembly inslot is arranged in to the movable positioning gasket, the vibrating diaphragm that awaits measuring that the messenger arranged in on the step is fixed between movable positioning gasket and assembly groove, the step size is great, the placing of the vibrating diaphragm that awaits measuring of being convenient for, and carry out the pressfitting through the movable positioning gasket to the vibrating diaphragm that awaits measuring fixed, high operation convenience is realized, and good positioning effect is obtained.

In some embodiments, the upper surface of the step is covered with a foam layer to prevent the diaphragm from directly contacting with metal to cause air leakage.

In some embodiments, the middle part of the movable positioning gasket is provided with a through hole corresponding to the test hole, and the through hole is larger than the test hole, so that the gluing frame of the vibrating diaphragm can be conveniently exposed.

In some embodiments, magnets are embedded on the contact surfaces of the assembling groove and the movable positioning gasket, so that the placing stability of the positioning gasket is enhanced.

In some embodiments, the periphery of the assembly groove is provided with a guide wedge surface for facilitating the placement of the movable positioning gasket.

In some embodiments, a clamping groove is formed in the periphery of the bottom of the test pressure plate, so that the test pressure plate can be conveniently clamped and fixed with a test board on a test machine.

The utility model has the advantages that,

(1) the utility model provides a positioning tool for testing a vibrating diaphragm, which is convenient for placing the vibrating diaphragm to be tested by arranging a step and fixing the vibrating diaphragm by utilizing a movable positioning gasket, and can effectively position the vibrating diaphragm to be tested while the vibrating diaphragm is convenient to place;

(2) the utility model provides a vibrating diaphragm test is with location frock through laying the cotton layer of bubble on the step, avoids vibrating diaphragm and metal direct contact to take place gas leakage phenomenon in the test procedure, guarantees the measuring accuracy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an assembled view of a positioning tool;

FIG. 2 is an exploded view of the positioning tool;

FIG. 3 is a cross-sectional view of the positioning tool;

in the figure, 1 is a test pressure plate, 2 is a test hole, 3 is a step, 4 is a movable positioning gasket, 5 is an assembly groove, 6 is a foam layer, 7 is a through hole, 8 is a magnet, 9 is a guide wedge surface, and 10 is a clamping groove.

Detailed Description

The technical solutions of the present invention will be described more clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in figure 1, a positioning tool for testing a vibrating diaphragm comprises a testing pressure plate 1, wherein a testing hole 2 is formed in the middle of the testing pressure plate 1, and a step 3 used for placing the vibrating diaphragm to be tested is arranged on the periphery of the testing hole 2. And four corners of the step 3 are rounded.

In order to ensure the accuracy and consistency of the test, a movable positioning gasket 4 is additionally arranged above the step 3, an assembly groove 5 is additionally arranged on the periphery of the step 3, the movable positioning gasket 4 is arranged in the assembly groove 5, so that the vibrating diaphragm to be tested, which is placed on the step 3, is fixed between the movable positioning gasket 4 and the assembly groove 5, and after the vibrating diaphragm to be tested is placed on the step 3, the vibrating diaphragm to be tested is pressed and positioned through the movable positioning gasket 4, and the test stability is ensured.

As shown in fig. 2, in order to expose the glued border of the diaphragm to be tested, a through hole 7 is formed in the middle of the movable positioning pad 4, and the specification of the through hole 7 is slightly larger than that of the test hole 2 and is configured in a matching manner according to the specification of the diaphragm to be tested.

In order to ensure the stability of the movable positioning gasket 4 to the pressing of the vibrating diaphragm to be tested, a magnet 8 can be additionally arranged on the contact surface of the assembly groove 5 and the movable positioning gasket 4, the magnet 8 is embedded on the surface of the assembly groove 5 and the bottom surface of the movable positioning gasket 4, and the magnet and the movable positioning gasket are mutually adsorbed and fixed after being contacted.

In order to facilitate the smooth placement of the movable positioning pad 4 into the assembly groove 5, an inclined guide wedge surface 9 is provided on the outer periphery of the assembly groove 5.

As shown in fig. 3, in order to avoid the air leakage phenomenon caused by the direct contact between the vibrating diaphragm to be tested and the metal tool, the foam layer 6 is attached to the upper surface of the step 3, the step 3 is large in size, the foam attaching operation is facilitated, and the test accuracy can be ensured.

In order to be clamped and fixed with a test bench on a laser FO test machine, a clamping groove 10 is arranged on the periphery of the bottom of the test pressure plate 1. During the use, will load the test pressure disk 1 that has the vibrating diaphragm that awaits measuring and place on the testboard, set up the test parameter of laser FO test machine, open the laser FO test machine and test the vibrating diaphragm, through the computer record test result to confirm the minimum resonant frequency of vibrating diaphragm, ensure vibrating diaphragm location frock and the stable connection of laser FO testboard, improve the degree of accuracy of test.

The foregoing description is intended to be illustrative, rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations, or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a vibrating diaphragm test is with location frock, includes test pressure disk (1), open at test pressure disk (1) middle part has test hole (2), test hole (2) periphery is equipped with step (3) that are used for placing the vibrating diaphragm that awaits measuring, a serial communication port, step (3) top is equipped with movable positioning gasket (4), assembly groove (5) have been seted up to step (3) periphery, assembly groove (5) are arranged in movable positioning gasket (4), make the vibrating diaphragm that awaits measuring of arranging step (3) in fix between movable positioning gasket (4) and assembly groove (5).

2. The positioning tool for the diaphragm test as claimed in claim 1, wherein the upper surface of the step (3) is covered with a foam layer (6).

3. The positioning tool for the diaphragm test according to claim 1, wherein a through hole (7) is formed in the middle of the movable positioning gasket (4) corresponding to the test hole (2), and the through hole (7) is larger than the test hole (2).

4. The positioning tool for the diaphragm test according to claim 1, wherein a magnet (8) is embedded on a contact surface of the assembling groove (5) and the movable positioning gasket (4).

5. The positioning tool for the diaphragm test according to claim 1, wherein a guide wedge surface (9) is arranged on the periphery of the assembling groove (5).

6. The positioning tool for the diaphragm test according to claim 1, wherein a clamping groove (10) is formed in the periphery of the bottom of the test pressure plate (1).