CN216162872U - Easily fixed calibration frock - Google Patents
Easily fixed calibration frock Download PDFInfo
- Publication number
- CN216162872U CN216162872U CN202122295161.6U CN202122295161U CN216162872U CN 216162872 U CN216162872 U CN 216162872U CN 202122295161 U CN202122295161 U CN 202122295161U CN 216162872 U CN216162872 U CN 216162872U
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- pull rod
- fixing frame
- supporting plate
- rod assembly
- base
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Abstract
The utility model discloses an easily-fixed calibration tool, and aims to provide an easily-fixed calibration tool which is simple in structure and has the functions of quick calibration and convenient taking and placing. The telescopic type telescopic rod fixing device comprises a base, a supporting plate, a fixing frame and a pull rod assembly, wherein the supporting plate is arranged on the base, one end of the fixing frame is in sliding fit with the supporting plate, and the other end of the fixing frame is connected with the pull rod assembly. The utility model is applied to the technical field of micro-electro-mechanical system testing tools.
Description
Technical Field
The utility model relates to the technical field of micro-electro-mechanical system testing tools, in particular to an easily-fixed calibration tool.
Background
The mobile phone is used as an indispensable tool in modern society, more than one microphone is arranged in each mobile phone, in order to ensure the experience of users, the mobile phone microphones need to be subjected to acoustic performance detection before leaving a factory, and the detection method generally uses a standard microphone to compare the performance of the microphone with that of a mobile phone flat cable. In the testing industry, acoustic testing of microphones is typically performed using microphones manufactured by danish B & K company as standard microphones. The common standard microphone has larger overall dimension, is not suitable for use in a use environment with narrow space, and has price difference which is tens to hundreds times higher than the price of the MEMS.
At present, MEMS test calibration in the industry is usually measured above a manual mouth by hands, a related calibration test tool is lacked, a large amount of labor cost is needed in a test procedure, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an easily-fixed calibration tool which is simple in structure and has the functions of quick calibration and convenient taking and placing.
The technical scheme adopted by the utility model is as follows: the telescopic type telescopic rod fixing device comprises a base, a supporting plate, a fixing frame and a pull rod assembly, wherein the supporting plate is arranged on the base, one end of the fixing frame is in sliding fit with the supporting plate, and the other end of the fixing frame is connected with the pull rod assembly.
Further, it still includes artifical mouth, be provided with on the base with artifical mouth assorted recess, artifical mouth with the base is closely laminated.
Further, the pull rod assembly comprises a pull rod, a sleeve and a cushion block, the cushion block is arranged at the lower end of the sleeve, a spring is sleeved on the pull rod, one end of the spring is connected with the top cover of the sleeve, and the other end of the spring is connected with a convex ring of the pull rod.
Furthermore, a slot and a mounting hole are formed in the fixing frame, the mounting hole is formed in the tail end of the fixing frame, and through holes are formed in two ends of the slot.
Furthermore, scales are arranged on the supporting plate.
Further, a calibration block is further arranged between the pull rod assembly and the artificial mouth, and a plurality of steps are arranged on the calibration block.
The utility model has the beneficial effects that: the utility model adopts the design of quick sliding positioning, the support plate is in sliding fit with the fixing frame to quickly adjust the position of the pull rod assembly, the structure is simple, the use is convenient, and the test efficiency is improved; the groove in the base adopts a semicircular structure, the influence of sound wave reflection on the test is effectively reduced by the semicircular structure, and the test accuracy is improved; the height of the pull rod assembly is finely adjusted by the aid of the calibration block, so that the height between a product to be tested and the artificial mouth is ensured, and stability of a testing environment and accuracy of testing data are kept.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the tie rod assembly of the present invention;
FIG. 3 is a schematic diagram of the structure of the calibration block of the present invention;
fig. 4 is a schematic structural view of the fixing frame of the present invention.
Detailed Description
As shown in fig. 1 to 4, in the embodiment, the present invention includes a base 1, a supporting plate 2, a fixing frame 3 and a pull rod assembly 4, wherein the supporting plate 2 is disposed on the base 1, one end of the fixing frame 3 is slidably fitted with the supporting plate 2, the other end of the fixing frame 3 is connected with the pull rod assembly 4, and the fixing frame 3 is fixedly connected with the supporting plate 2 through a fastening screw. The position of the pull rod assembly 4 is rapidly adjusted by adopting the sliding fit of the supporting plate 2 and the fixing frame 3, the structure is simple, the use is convenient, and the testing efficiency is improved.
In this embodiment, still include artifical mouth 5, be provided with on the base 1 with artifical mouth 5 assorted recess, artifical mouth 5 with base 1 closely laminates, the recess is semi-circular structure. The influence of sound wave reflection on the test is effectively reduced by adopting a semicircular design, the test accuracy is improved, and the placing is convenient and the positioning is accurate.
In this embodiment, the pull rod assembly 4 includes a pull rod 6, a sleeve 7 and a cushion block 8, the cushion block 8 is disposed at the lower end of the sleeve 7, a spring 9 is sleeved on the pull rod 6, one end of the spring 9 is connected with a top cover 13 of the sleeve 7, and the other end of the spring 9 is connected with a convex ring of the pull rod 6. The design that the spring 9 is adopted to compress the product to be tested is adopted, so that the product to be tested is prevented from being damaged due to overlarge clamping force when the product to be tested is fastened.
In this embodiment, the fixing frame 3 is provided with a slot 10 and a mounting hole 11, the mounting hole 11 is disposed at the end of the fixing frame 3, and through holes are disposed at two ends of the slot 10.
In this embodiment, be provided with the scale on the backup pad 2, zero scale of scale with the top parallel and level of artifical mouth 5, the scale is from up increasing progressively down. The scales are added to the supporting plate 2, so that the height of the fixing plate can be finely adjusted conveniently, and quick positioning is realized.
In this embodiment, a calibration block 12 is further disposed between the pull rod assembly 4 and the artificial mouth 5, a plurality of steps are disposed on the calibration block 12, and the calibration block 12 can respectively perform calibration of 6 different heights through the steps. The calibration block 12 is internally designed in a stepped manner, so that the calibration block 12 can realize 6 kinds of calibration with different heights, and a single part can participate in the calibration with various different heights.
The working principle of the utility model is as follows:
the fixing frame 3 is sleeved on the supporting plate 2, the fixing frame 3 is adjusted to a testing position through scales, the fixing frame 3 is fastened on the supporting plate 2 through fastening screws, then the pull rod assembly 4 is placed in the mounting hole 11 of the fixing frame 3, the position of the pull rod assembly 4 is finely adjusted through the calibration block 12, and then the screws penetrate through holes at two ends of the groove 10, so that the pull rod assembly 4 is fixed on the fixing frame 3, and the installation is completed.
During testing, the pull rod 6 is lifted up and the spring 9 is compressed, a product is placed on the cushion block 8, then the pull rod 6 is loosened, the product is pressed and fixed on the cushion block 8 under the action of spring force, then the artificial mouth 5 is started, the product receives audio signals and then is converted into signals to be processed, and scene simulation testing of the product is completed.
While the embodiments of the present invention have been described in terms of practical embodiments, they are not to be construed as limiting the meaning of the present invention, and modifications of the embodiments and combinations with other embodiments will be apparent to those skilled in the art in light of the present description.
Claims (6)
1. The utility model provides an easy fixed calibration frock which characterized in that: the novel telescopic rod assembly comprises a base (1), a supporting plate (2), a fixing frame (3) and a pull rod assembly (4), wherein the supporting plate (2) is arranged on the base (1), one end of the fixing frame (3) is in sliding fit with the supporting plate (2), and the other end of the fixing frame (3) is connected with the pull rod assembly (4).
2. The easy-to-fix calibration tool according to claim 1, characterized in that: it still includes artifical mouth (5), be provided with on base (1) with artifical mouth (5) assorted recess, artifical mouth (5) with base (1) closely laminates.
3. The easy-to-fix calibration tool according to claim 1, characterized in that: pull rod assembly (4) include pull rod (6), sleeve (7) and cushion (8), cushion (8) set up the lower extreme of sleeve (7), the cover is equipped with spring (9) on pull rod (6), the one end of spring (9) with top cap (13) of sleeve (7) are connected, the other end of spring (9) with the bulge loop of pull rod (6) is connected.
4. The easy-to-fix calibration tool according to claim 1, characterized in that: the fixing frame (3) is provided with a slot (10) and a mounting hole (11), the mounting hole (11) is arranged at the tail end of the fixing frame (3), and through holes are formed in two ends of the slot (10).
5. The easy-to-fix calibration tool according to claim 1, characterized in that: scales are arranged on the supporting plate (2).
6. The easy-to-fix calibration tool according to claim 2, characterized in that: a calibration block (12) is further arranged between the pull rod assembly (4) and the artificial mouth (5), and a plurality of steps are arranged on the calibration block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295161.6U CN216162872U (en) | 2021-09-23 | 2021-09-23 | Easily fixed calibration frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122295161.6U CN216162872U (en) | 2021-09-23 | 2021-09-23 | Easily fixed calibration frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216162872U true CN216162872U (en) | 2022-04-01 |
Family
ID=80853495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122295161.6U Active CN216162872U (en) | 2021-09-23 | 2021-09-23 | Easily fixed calibration frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216162872U (en) |
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2021
- 2021-09-23 CN CN202122295161.6U patent/CN216162872U/en active Active
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