Structure of test fixture for vibrating diaphragm with inner surface attached

Abstract

The utility model discloses a structure of a test fixture for an internally-pasted diaphragm, and aims to solve the technical problems that the number of required test fixtures is large, time is wasted and a test sample is scrapped when the diaphragm is tested in the prior art. The structure of the testing jig for the internally-attached surface vibrating diaphragm comprises a vibrating diaphragm fixing piece, wherein the vibrating diaphragm fixing piece is provided with a testing fixing piece through a fixing structure; when the jig is used, only three accessories, namely the vibrating diaphragm fixing piece, the test fixing piece and the vibrating diaphragm blank pressing piece, are assembled and fixed through gluing or threads, gluing fixation is not needed when a vibrating diaphragm is tested, a vibrating diaphragm test sample cannot be scrapped, the jig is convenient to reuse due to the fact that gluing fixation is not needed, and the production cost is reduced. The test fixture can be installed into the vibrating diaphragm for testing simply and quickly, the requirement can be met only by manufacturing one set of fixture, the number of the test fixtures can be reduced during use, the test time can be shortened, and the performance parameters of the loudspeaker can be ensured by full test of samples.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen waste processors, and in particular relates to the structure of an inner surface diaphragm testing fixture. Background Art

[0002] With the continuous progress of society and the continuous development of science and technology, loudspeakers are also constantly making breakthroughs. The most effective way to improve the sound pressure of loudspeakers of the same size is to increase the effective vibration area of ​​the diaphragm. To achieve this goal, acoustic engineers have developed an inner-surface diaphragm, that is, the diaphragm and the basin frame are attached to the bottom of the suspension edge instead of the outside of the diaphragm suspension edge, and the diaphragm is overlapped with the suspension edge to maximize the effective area of ​​the diaphragm. The diaphragm edge is easily realized by a rubber mold, but the diaphragm test F0 fixture has not been successfully developed. At present, the previous test fixture structure is still used, such as Figure 1 As shown: a disc with a central hole, first the diaphragm 4 is glued to the disc with a central hole by gluing, and then it is put into the test machine 5 of the diaphragm testing machine for testing after the glue is dry. In this way, many test fixtures need to be made, and it takes a long time for the glue to dry. After the test is completed again, the test sample is directly scrapped, and small batch samples cannot be tested 100%. Therefore, a structure of an inner-surface diaphragm test fixture is designed to change the above technical defects. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a structure of an inner-surface diaphragm test fixture, which is intended to solve the technical problems in the prior art that a large number of test fixtures are required for diaphragm testing, which is time-consuming and causes test samples to be scrapped.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a structure of an inner-surface diaphragm test fixture, which includes a diaphragm fixing part, and the diaphragm fixing part is provided with a test fixing part through a fixing structure, the diaphragm fixing part is provided with an upper groove, the test fixing part is provided with a lower groove matching the upper groove, and the diaphragm fixing part is provided with a diaphragm edge pressing part for pressing the diaphragm.

[0007] Preferably, the diaphragm fixing member includes a circular plate and a fixing column fixedly connected to the top of the circular plate, the upper groove is opened on the outer surface of one end of the fixing column away from the circular plate, the diaphragm edge clamping member is arranged as a circular ring structure, and the diaphragm edge clamping member is slidably mounted on the fixing column.

[0008] Furthermore, the outer diameter of the diaphragm edge clamp is smaller than the diameter of the circular plate.

[0009] Further, the test fixture is arranged in a circular ring structure, and the lower groove is formed in the inner bottom wall of the test fixture.

[0010] Further, the test fixture is lapped on the fixing column through the cooperation of the lower groove and the upper groove, and the fixing structure is to apply glue at the lap joint of the test fixture and the diaphragm fixture.

[0011] Further, the fixing structure includes an external thread fixedly connected to the outer surface of the fixing column away from the circular plate end and an internal thread on the inner bottom wall of the test fixture, and the internal thread is adapted to the external thread, and the test fixture is threadedly connected to the fixing column through the cooperation of the internal thread and the external thread.

[0012] (3) Beneficial effects

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] When the present utility model is used, only three accessories, namely the diaphragm fixture, the test fixture and the diaphragm pressing edge member, are fixed by applying glue or screw assembly. When testing the diaphragm, there is no need to apply glue for fixing, which will not cause the scrapping of the diaphragm test sample. Since there is no need to apply glue for fixing, the fixture of the present utility model is convenient for repeated use. The test fixture of the present utility model is simple and fast to load the diaphragm for testing, and only one set of fixture is needed to meet the requirements. When in use, it can reduce the number of test fixtures, reduce the test time, and can perform full testing of samples to ensure the performance parameters of the speaker. Description of the drawings

[0015] Figure 1 It is a schematic diagram of the prior art;

[0016] Figure 2 It is an exploded schematic diagram of the present utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the diaphragm fixture of the present utility model;

[0018] Figure 4 It is a schematic diagram of the present utility model when placed upside down;

[0019] Figure 5 It is a schematic diagram of the present utility model when placed upright;

[0020] Figure 6 It is a schematic diagram of the present utility model when in use.

[0021] The marks in the drawings are: 1, diaphragm fixture; 2, test fixture; 3, diaphragm pressing edge member; 4, diaphragm; 5, test machine platform; 11, upper groove; 12, circular plate; 13, fixing column; 21, lower groove. Detailed implementation manners

[0022] This specific implementation is a structure of an inner surface diaphragm test fixture, and its structural schematic diagram is as follows Figures 1-6 As shown, the structure of the inner surface diaphragm test fixture includes a diaphragm fixing part 1, and the diaphragm fixing part 1 is provided with a test fixing part 2 through a fixing structure. The diaphragm fixing part 1 is provided with an upper groove 11, and the test fixing part 2 is provided with a lower groove 21 matching with the upper groove 11. The diaphragm fixing part 1 is provided with a diaphragm edge pressing part 3 for pressing the diaphragm 4. The diaphragm fixing part 1 and the test fixing part 2 can be made of plastic or hardware materials, and the diaphragm edge pressing part 3 can be made of high-density materials such as iron or copper, and the material selection is easy.

[0023] Among them, the diaphragm fixing part 1 includes a circular plate 12 and a fixing column 13 fixedly connected to the top of the circular plate 12, the upper groove 11 is opened on the outer surface of the end of the fixing column 13 away from the circular plate 12, the diaphragm edge clamping part 3 is arranged as a circular ring structure, and the diaphragm edge clamping part 3 is slidably sleeved on the fixing column 13, and by sliding the diaphragm edge clamping part 3 on the fixing column 13, the position of the diaphragm edge clamping part 3 can be changed when the jig is placed inverted and upright, and the diaphragm edge clamping part 3 can be placed by moving the diaphragm 4 and the diaphragm 4 can be pressed after the diaphragm 4 is placed in the jig.

[0024] The outer diameter of the diaphragm edge clamp 3 is smaller than the diameter of the circular plate 12 . By making the outer diameter of the diaphragm edge clamp 3 smaller than the diameter of the circular plate 12 , the diaphragm edge clamp 3 can be prevented from being separated from between the diaphragm fixture 1 and the test fixture 2 .

[0025] The test fixture 2 is configured as a circular ring structure, and the lower groove 21 is opened on the inner bottom wall of the test fixture 2 .

[0026] Among them, the test fixture 2 is overlapped on the fixing column 13 through the cooperation of the lower groove 21 and the upper groove 11, and the fixing structure is to apply glue at the overlap of the test fixture 2 and the diaphragm fixture 1. The fixing structure is glue, and the test fixture 2 can be fixedly connected to the fixing column 13 by applying glue, so that the test fixture 2 can be fixedly connected to the diaphragm fixture 1.

[0027] In addition, another embodiment of the fixing structure includes an external thread fixedly connected to the outer surface of one end of the fixing column 13 away from the circular plate 12 and an internal thread on the inner bottom wall of the test fixture 2, and the internal thread is adapted to the external thread. The test fixture 2 is threadably connected to the fixing column 13 through the matching threads of the internal thread and the external thread. Through the matching of the internal thread and the external thread, threaded assembly fixation can be achieved.

[0028] Working principle: When using, first place the fixture of the utility model as Figure 4 As shown in the figure, the diaphragm edge pressing piece 3 slides down on the diaphragm fixing piece 1 to leave space for placing the diaphragm 4, and then the rubber edge of the diaphragm 4 is easily put into the circular plate 12 on the diaphragm fixing piece 1 by hand, and then the jig of the utility model is as shown in the figure.Figure 5 When placed upright as shown, when the diaphragm edge pressing member 3 slides and resets on the diaphragm fixing member 1, the glue edge pressing the vibration diaphragm 4 can ensure the test accuracy of the diaphragm. At the same time, after the test is completed, the diaphragm 4 can be taken out intact without being scrapped.

[0029] In summary, when the present utility model is in use, only three accessories, namely the diaphragm fixing member 1, the test fixing member 2, and the diaphragm edge pressing member 3, are fixed by gluing or screw assembly. When testing the diaphragm 4, no gluing is required for fixing, which will not cause the test samples of the diaphragm 4 to be scrapped. Since no gluing is required for fixing, the jig of the present utility model is convenient for repeated use. The test jig is simple and fast to load the diaphragm 4 for testing. Only one set of jigs is needed to meet the requirements. When in use, it can reduce the number of test jigs, reduce the test time, and can perform full testing of samples to ensure the performance parameters of the speaker.

[0030] The above embodiments are the preferred implementation schemes of the present utility model. In addition, the present utility model can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present utility model.

Claims

1. A structure of an inner surface diaphragm test fixture, the structure of the inner surface diaphragm test fixture comprising a diaphragm fixing part (1), characterized in that: The diaphragm fixing component (1) is provided with a test fixing component (2) via a fixing structure; an upper groove (11) is provided on the diaphragm fixing component (1); a lower groove (21) matching with the upper groove (11) is provided on the test fixing component (2); and the diaphragm fixing component (1) is provided with a diaphragm edge pressing component (3) for pressing the diaphragm (4).

2. The structure of the inner surface diaphragm test fixture according to claim 1 is characterized in that: The diaphragm fixing member (1) comprises a circular plate (12) and a fixing column (13) fixedly connected to the top of the circular plate (12); the upper groove (11) is formed on the outer surface of one end of the fixing column (13) away from the circular plate (12); the diaphragm edge clamping member (3) is configured as a circular ring structure, and the diaphragm edge clamping member (3) is slidably mounted on the fixing column (13).

3. The structure of the inner surface diaphragm test fixture according to claim 2 is characterized in that: The outer diameter of the diaphragm edge clamp (3) is smaller than the diameter of the circular plate (12).

4. The structure of the inner surface diaphragm test fixture according to claim 2, characterized in that: The test fixture (2) is configured as a circular ring structure, and the lower groove (21) is opened on the inner bottom wall of the test fixture (2).

5. The structure of the inner surface diaphragm test fixture according to claim 4 is characterized in that: The test fixture (2) is overlapped on the fixing column (13) through the cooperation of the lower groove (21) and the upper groove (11), and the fixing structure is to glue the overlapped part of the test fixture (2) and the diaphragm fixture (1).

6. The structure of the inner surface diaphragm test fixture according to claim 4, characterized in that: The fixing structure comprises an external thread fixedly connected to the outer surface of one end of the fixing column (13) away from the circular plate (12) and an internal thread on the inner bottom wall of the test fixture (2), wherein the internal thread is matched with the external thread, and the test fixture (2) is connected to the fixing column (13) through the matching threads of the internal thread and the external thread.

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