CN204810550U - Cone test fixture - Google Patents
Cone test fixture Download PDFInfo
- Publication number
- CN204810550U CN204810550U CN201520550384.4U CN201520550384U CN204810550U CN 204810550 U CN204810550 U CN 204810550U CN 201520550384 U CN201520550384 U CN 201520550384U CN 204810550 U CN204810550 U CN 204810550U
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- cone
- laser
- vibrating membrane
- test
- seat
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Abstract
The utility model discloses a cone test fixture, including cone seat, cone clamping ring, vibrating diaphragm, cone ring, laser test post, fixing bolt, inside first layer step and the second floor step of being equipped with of cone seat, be provided with the vibrating diaphragm on the first layer step, the vibrating diaphragm center is provided with laser test post through fixing bolt, be equipped with the cone on the second floor step, the cone top is provided with the cone clamping ring, cone seat external diameter matches the setting with the testboard of laser FO test machine, this novel cone clamping ring adopts heavy metal material to increase the action of gravity to through the fixed laser test post that is provided with of fixing bolt on the vibrating diaphragm, laser test post all adopts copper material with fixing bolt, ensures that the testboard on cone test fixture and the laser FO test machine stably is connected, and it has the degree of accuracy to improve the test of minimum resonance frequency.
Description
Technical field
The utility model relates to a kind of loudspeaker cone measuring technology apparatus field, particularly a kind of cone measurement jig.
Background technology
Loudspeaker do not have distortion and without under other cacophonia, the frequency range of energy normal play is called the broadcasting frequency band of these loudspeaker; Play frequency band to refer to from bass band resonance frequency to treble band resonance frequency reach the frequency range that constant sound press is set.In the detection operation of loudspeaker, the step finding resonance frequency is extremely important, and when occurring to resonate, the impedance of loudspeaker is maximum, and therefore the determinator of design resonance frequency is to measure the frequency of maximum impedance point.
In order to find resonance frequency, needing the speed being less than a certain size, increasing the frequency of audio frequency 20Hz-20KHz, while find maximum impedance point, that described impedance is maximum is exactly some resonance frequency (FO).Due to the inertia of mechanical structure thing loudspeaker, the error of determined resonance frequency can become large,
In prior art, the main method of testing of test horn vibrating diaphragm/diaphragm is indirect test method, tested vibrating diaphragm is fixed on directly over loud speaker, with sinusoidal signal from low to high turntable driving loudspeaker vibrating diaphragm is vibrated thereupon, the characteristic of conventional horn, loud speaker, as the test of F0 (lowest resonance frequency) and THD (distortion), need to position and heavy burden loudspeaker, adopt laser FO test macro to complete the test of lowest resonance frequency (FO); For different loudspeaker, its location is undesirable with heavy burden measurement jig, affects the test accuracy of lowest resonance frequency.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of cone measurement jig, for deficiency of the prior art, shape according to cone arranges cone seat and cone pressure ring, described cone pressure ring adopts heavy metal material to increase Action of Gravity Field, and on vibrating membrane, be fixedly installed laser testing post by set bolt, described laser testing post and set bolt all adopt copper material, guarantee that cone measurement jig and the testboard on laser FO test machine are stable to be connected, improving lowest resonance frequency test has accuracy.
For achieving the above object, the technical solution of the utility model is as follows: a kind of cone measurement jig, comprises cone seat, cone pressure ring, vibrating membrane, cone ring, laser testing post, set bolt, it is characterized in that:
Described cone seat is the manufacture of circular ring metal material, and its inside is provided with three groups of round platforms, from down to lower formation ground floor step and second layer step; Described ground floor step is provided with vibrating membrane, described vibrating membrane is manufactured by elastic metallic material, described vibrating membrane center is provided with laser testing post by set bolt, and described vibrating membrane is disc-shaped structure, and the external diameter of described vibrating membrane mates with the internal diameter on described first guide table rank and arranges; Described second layer step is equipped with cone, is provided with cone pressure ring above described cone, the internal diameter of described second layer step mates with the external diameter of cone pressure ring and arranges; Described cone seat external diameter mates with the testboard of laser FO test machine and arranges.
Described laser testing post and set bolt are copper material.
The weight range of described cone pressure ring is 3 times-5 times of described cone weight.
Second layer stepped diameters and the cone diameter matches of described cone seat are arranged.
Operation principle of the present utility model is: be assembled to by cone seat on the testboard of laser FO test machine, vibrating membrane and laser testing post, cone to be tested to be assembled on cone seat in cone ring, cone pressure ring is crimped onto on cone, the test parameter of laser FO test machine is set, open laser FO test machine to test cone, by computer record test structure, and determine the lowest resonance frequency of cone.
Pass through technique scheme, the beneficial effect of technical solutions of the utility model is: the shape according to circular cone arranges annulus cone seat and annular cone pressure ring, described cone pressure ring adopts heavy metal material to increase Action of Gravity Field, and on vibrating membrane, be fixedly installed laser testing post by set bolt, described laser testing post and set bolt all adopt copper material, guarantee that cone measurement jig and the testboard on laser FO test machine are stable to be connected, improving lowest resonance frequency test has accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of cone measurement jig front view schematic diagram disclosed in the utility model embodiment;
Fig. 2 is a kind of cone measurement jig generalized section disclosed in the utility model embodiment.
Numeral and the corresponding component title represented by letter in figure:
1. cone seat 2. cone pressure ring 3. vibrating membrane 4. cone ring 5. laser testing post 6. set bolt
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
According to Fig. 1 and Fig. 2, the utility model provides a kind of cone measurement jig, comprises cone seat 1, cone pressure ring 2, vibrating membrane 3, cone ring 4, laser testing post 5, set bolt 6.
Described cone seat 1 is the manufacture of circular ring metal material, and its inside is provided with three groups of round platforms, from down to lower formation ground floor step and second layer step; Described ground floor step is provided with vibrating membrane 3, described vibrating membrane 3 is manufactured by elastic metallic material, described vibrating membrane 3 center is provided with laser testing post 5 by set bolt 6, and described vibrating membrane 3 is disc-shaped structure, and the external diameter of described vibrating membrane 3 mates with the internal diameter on described first guide table rank and arranges; Described second layer step is equipped with cone, is provided with cone pressure ring 2 above described cone, the internal diameter of described second layer step mates with the external diameter of cone pressure ring 2 and arranges; Described cone seat 1 external diameter mates with the testboard of laser FO test machine and arranges.
Described laser testing post 5 is copper material with set bolt 6.
The weight range of described cone pressure ring 2 is 4 times of described cone weight.
Second layer stepped diameters and the cone diameter matches of described cone seat 1 are arranged.
The utility model concrete operation step is: be assembled to by cone seat 1 on the testboard of laser FO test machine, vibrating membrane 3 and laser testing post 5, cone to be tested to be assembled on cone seat 1 in cone ring 4, cone pressure ring 2 is crimped onto on cone, the test parameter of laser FO test machine is set, open laser FO test machine to test cone, by computer record test structure, and determine the lowest resonance frequency of cone.
By above-mentioned specific embodiment, the beneficial effects of the utility model are: the shape according to circular cone arranges annulus cone seat and annular cone pressure ring, described cone pressure ring adopts heavy metal material to increase Action of Gravity Field, and on vibrating membrane, be fixedly installed laser testing post by set bolt, described laser testing post and set bolt all adopt copper material, guarantee that cone measurement jig and the testboard on laser FO test machine are stable to be connected, improving lowest resonance frequency test has accuracy.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a cone measurement jig, is characterized in that, comprises cone seat, cone pressure ring, vibrating membrane, cone ring, laser testing post, set bolt; Described cone seat is the manufacture of circular ring metal material, and its inside is provided with three groups of round platforms, from down to lower formation ground floor step and second layer step; Described ground floor step is provided with vibrating membrane, described vibrating membrane is manufactured by elastic metallic material, described vibrating membrane center is provided with laser testing post by set bolt, and described vibrating membrane is disc-shaped structure, and the external diameter of described vibrating membrane mates with the internal diameter of described ground floor step and arranges; Described second layer step is equipped with cone, is provided with cone pressure ring above described cone, the internal diameter of described second layer step mates with the external diameter of cone pressure ring and arranges; Described cone seat external diameter mates with the testboard of laser FO test machine and arranges.
2. a kind of cone measurement jig according to claim 1, is characterized in that, described laser testing post and set bolt are copper material.
3. a kind of cone measurement jig according to claim 1, is characterized in that, the weight range of described cone pressure ring is 3 times-5 times of described cone weight.
4. a kind of cone measurement jig according to claim 1, is characterized in that, second layer stepped diameters and the cone diameter matches of described cone seat are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520550384.4U CN204810550U (en) | 2015-07-28 | 2015-07-28 | Cone test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520550384.4U CN204810550U (en) | 2015-07-28 | 2015-07-28 | Cone test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204810550U true CN204810550U (en) | 2015-11-25 |
Family
ID=54595293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520550384.4U Expired - Fee Related CN204810550U (en) | 2015-07-28 | 2015-07-28 | Cone test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204810550U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682803A (en) * | 2017-11-22 | 2018-02-09 | 江苏鹏美电声器材有限公司 | A kind of analog detection method of diffuser resonant frequency |
| CN107959916A (en) * | 2017-11-22 | 2018-04-24 | 江苏鹏美电声器材有限公司 | A kind of diffuser detects gauge |
| CN111182436A (en) * | 2020-03-06 | 2020-05-19 | 温州顺创智能科技有限公司 | Testing device for loudspeaker cone |
-
2015
- 2015-07-28 CN CN201520550384.4U patent/CN204810550U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682803A (en) * | 2017-11-22 | 2018-02-09 | 江苏鹏美电声器材有限公司 | A kind of analog detection method of diffuser resonant frequency |
| CN107959916A (en) * | 2017-11-22 | 2018-04-24 | 江苏鹏美电声器材有限公司 | A kind of diffuser detects gauge |
| CN111182436A (en) * | 2020-03-06 | 2020-05-19 | 温州顺创智能科技有限公司 | Testing device for loudspeaker cone |
| CN111182436B (en) * | 2020-03-06 | 2021-04-20 | 嘉兴市晶奥电子有限公司 | Testing device for loudspeaker cone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151125 Termination date: 20180728 |