CN209656238U - A kind of electric and electronic product vibration test proficiency testing device - Google Patents
A kind of electric and electronic product vibration test proficiency testing device Download PDFInfo
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- CN209656238U CN209656238U CN201821653292.9U CN201821653292U CN209656238U CN 209656238 U CN209656238 U CN 209656238U CN 201821653292 U CN201821653292 U CN 201821653292U CN 209656238 U CN209656238 U CN 209656238U
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- pedestal
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- electronic product
- proficiency testing
- testing device
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Abstract
The utility model discloses a kind of electric and electronic product vibration test proficiency testing device, the verifying device includes pedestal, support plate and hanging stick, and the support plate is vertically mounted at the upper surface center of the pedestal；The mounting hole for connecting with vibration table is provided on the pedestal；One end of the hanging stick is vertically welded at the center of the support plate, and the other end is detachably equipped with clump weight；Sensor is mounted on the hanging stick and the pedestal, the sensor is electrically connected by data line with peripheral control unit.The utility model structure is simple, and manufacturing cost is low, convenient transportation.
Description
Technical field
The utility model relates to the technical fields of proficiency testing device, vibrate and try more particularly to a kind of electric and electronic product
Test proficiency testing device.
Background technique
The reliability test that surrounding use environment influences material and product function and performance is studied when environmental test.Electricity
Work electronic product vibration test is used, transports or is stored under vibration for check element, equipment and other products
Ability.The application range of vibration test is very extensive, and the electric and electronic products such as space flight, ship, automobile, electronic component will be into
Row vibration test.Therefore, particularly important for accurate evaluation product ability to the correct vibration test of electric and electronic product progress.
Proficiency testing is the detection of the calibration that laboratory is determined using the comparison between laboratory, detectability or inspection body
One activity of ability.Ability verification refers to that the comparison of any laboratory monitoring for evaluation experimental room ability and measurement are examined
Core.Such as it is tested by country or the accreditation body and its cooperative association in region, government department or industry organization or other formal abilities
The activity of supplier's running of card plan.
Carry out ability verification, to be related to detect or calibrate related fields have the function of it is positive, for laboratory
For, it is that it meets 17025 standard of ISO/IEC, carries out the needs of internal quality control and external ability proof；For recognizing
Can mechanism, be evaluate accredited laboratory detection or rated capacity important technology approach；It is to prove for the client in laboratory
Laboratory has the important evidence of a certain detectability；It is to supervise having for laboratory capabilities and level for responsible departments of the government
Effect measure；Therefore, at present no matter international or at home, ability verification is all widely paid close attention to.
On the one hand, the device of operational capacity verifying is required to meet the uniformity of proficiency testing requirement, and can be in entire ability
In verification process keep stablize, so that it is guaranteed that occur in proficiency testing it is unqualified be not attributed to operational capacity verifying device it
Between or device itself variability, therefore, this point is most important to entire ability verification, it will have a direct impact on final living
Dynamic result；On the other hand, the device requirement of operational capacity verifying is readily transported, cost is relatively low and easy to use.
It is verified currently, having no operational capacity verifying device in industry for vibration test ability, only whole is tried
It tests equipment to be calibrated, the verification mode generally taken is to set vibration test according to coupled vibration testing equipment calibrating specification
It is standby to be calibrated.But this mode, when carrying out vibration test, the device for calibrating vibration rig can not obtain resonance frequency
Rate, can not be to the laboratory implementation ability verification for participating in proficiency testing；And this mode need to use kinetic analyzer,
A variety of calibrating installations such as laser vibration measurer, sinusoidal signal generator, cause at high cost, and volume is larger, and transport is inconvenient, and part is tried
It tests equipment Alignment device and belongs to high-accuracy electronic equipment, be not suitable for common logistics transportation, need to transport using special logistics, into
The cost of one step raising ability verification.
Utility model content
The purpose of the utility model is to provide a kind of electric and electronic product vibration test proficiency testing device, the proficiency testings
Apparatus structure is simple, and manufacturing cost, and convenient transportation is effectively reduced.
The purpose of this utility model is realized by technical solution below:
A kind of electric and electronic product vibration test proficiency testing device, which is characterized in that the verifying device include pedestal,
Support plate and hanging stick, the support plate are vertically mounted at the upper surface center of the pedestal；It is provided with and is used on the pedestal
The mounting hole being connect with vibration table；One end of the hanging stick is vertically welded at the center of the support plate, and the other end is removable
It unloads and clump weight is installed；Sensor is mounted on the hanging stick and the pedestal, the sensor passes through data line and outside
Controller electrical connection.
Based on the above technical solution, the utility model can do following improvement:
The vibration frequency monitoring range of sensor described in the utility model is 1-3200Hz.
Sensor described in the utility model includes monitoring sensor and control sensor, and the control sensor is mounted on
The upper surface of the pedestal, for detecting the vibration frequency and acceleration of shake table generation；The monitoring sensor is mounted on outstanding
Resonant frequency and acceleration on bar, for detectability verifying device.
Installation hole number described in the utility model is 4-6, and the mounting hole is respectively along the length and width of the pedestal
Direction equidistantly distributed is spent, so that verifying device be enable to be closely joined together with shake table.
Pedestal, support plate and hanging stick described in the utility model are fabricated by identical metal material, to keep away
Exempt from interference of the frequency difference generated between unlike material to verify data, acquisition resonant frequency more closing to reality.
Clump weight described in the utility model is threadedly coupled with the hanging stick, and the mass range of the clump weight is 40-
400g, so as to be convenient for changing the suitable clump weight of installation, adjust intrinsic frequency according to the needs of actual verification.
Compared with prior art, the utility model technology has the advantage that
(1) electric and electronic product vibration test proficiency testing device overall structure described in the utility model is simple, manufacture
It is at low cost, convenient transportation.
(2) the electric and electronic product vibration test proficiency testing device of the utility model is provided only with single hanging stick, can keep away
The intrinsic frequency for exempting from each freedom degree component in complicated proficiency testing device influences each other, and is conducive to improve test result
Accuracy.
Detailed description of the invention
The utility model is described in further details in the following with reference to the drawings and specific embodiments
Fig. 1 is the structural schematic diagram of the utility model electric and electronic product vibration test proficiency testing device；
Label on attached drawing: 1- pedestal, 2- support plate, 3- hanging stick, 4- mounting hole, 5- clump weight, 6- sensor, 61- control
Sensor processed, 62- monitor sensor, 7- controller.
Specific embodiment
Such as Fig. 1, a kind of electric and electronic product vibration test proficiency testing device of the present embodiment, verifying device includes pedestal
1, support plate 2 and hanging stick 3, support plate 2 are vertically mounted at the upper surface center of pedestal 1；Pedestal 1 is square metal plate, bottom
It is provided on seat 1 for four mounting holes 4, mounting hole 4 is respectively along the length and width direction equidistantly distributed of pedestal 1, pedestal 1
It is bolted by mounting hole 4 with vibration table；One end of hanging stick 3 is vertically welded at the center of support plate 2, and the other end is removable
It unloads and clump weight 5 is installed；Sensor 6 is mounted on hanging stick 3 and pedestal 1, the vibration frequency monitoring range of sensor 6 is
1-3200Hz, sensor 6 are electrically connected by data line with peripheral control unit 7, and therefore, the proficiency testing device in the present embodiment is whole
Body structure is simple, convenient transportation, hence it is evident that reduces manufacturing cost.
Pedestal 1, support plate 2 and hanging stick 3 in the present embodiment are fabricated by same metal material, to avoid not
Interference of the frequency difference generated between same material to verify data, acquisition resonant frequency are more objective.
Sensor 6 in the present embodiment includes control sensor 61 and monitoring sensor 62, and control sensor 61 is mounted on
The upper surface of pedestal, for detecting the vibration frequency and acceleration of shake table generation；Monitoring sensor 62 is mounted on hanging stick, is used
In the resonant frequency and acceleration of detectability verifying device.
Clump weight 5 in the present embodiment is threadedly coupled with hanging stick 3, and the mass range of clump weight 5 is 40-400g, works as verifying
The total quality of device is m, rigidity k, verifies the intrinsic frequency f of devicenValue isTherefore, by replacing not
The clump weight of homogenous quantities makes the total quality for verifying device change, and adjusts proficiency testing in the present embodiment so as to facilitate
The intrinsic frequency of device is to meet the needs of proficiency testing.
The specific steps of vibration test proficiency testing are completed using the device in the present embodiment are as follows:
1) verifying device is rigidly connected on a vibration table by four bolt mounting holes, aperture spacing is 100mm, spiral shell
Bolt is M12；
2) installation monitors sensor on the hanging stick of verifying device, and installation control sensor, two sensors are same on pedestal
Shi Jinhang sinusoidal vibration frequency sweep, swept frequency range are set as 10-200Hz, displacement amplitude 0.75mm, acceleration amplitude 2m/s2；
3) it when the frequency that shake table applies sine sweep is overlapped with the eigentone of verifying device, can excite identical
The resonance peak of frequency, at this point, the corresponding resonance of control device record；
4) the intrinsic frequency f of vibration test proficiency testing device is preset1, when vibration test proficiency testing device detects vibration
The eigentone f of sine sweep frequency and verifying device that dynamic platform applies1When identical, control device will record resonance frequency
Rate records the resonant frequency of card device to be tested；
5) the Z value of the resonant frequency of above-mentioned card device to be tested is calculated,When | z
| when≤2, judge that card device shake table vibration test ability to be tested is qualified.
Above-mentioned steps 5) described in median, standard IQR value obtains in the following way: selection 18 are above (usual
Be 20 or more) card device to be tested difference step 1), 2), 3), 4) accordingly obtain 18 or more unit temps to be verified
Value calculates the median and standard IQR value of above-mentioned 18 or more card device resonant frequencies to be tested.
The experimental data of device is verified for the electron and electrician product vibration ability of the present embodiment below:
The uniformity testing of proficiency testing device is reported
According to the setting requirements of device, customized 100 samples therefrom randomly select 12 respectively and are used for uniformity testing,
Each sample retest 2 times.
Sample homogeneity inspection result data:
| Sample number into spectrum | Test value 1 (Hz) | Test value 2 (Hz) |
| 1 | 131.6 | 130.8 |
| 2 | 131.0 | 131.4 |
| 3 | 131.2 | 131.2 |
| 4 | 131.3 | 131.8 |
| 5 | 132.0 | 132.6 |
| 6 | 131.5 | 131.8 |
| 7 | 131.3 | 131.6 |
| 8 | 132.2 | 131.6 |
| 9 | 131.6 | 131.7 |
| 10 | 131.4 | 132.4 |
| 11 | 132.4 | 131.8 |
| 12 | 132.2 | 131.5 |
Sample one-way analysis of variance result:
1.66〈F0.05(11,12)=2.72
The F statistics magnitude of calculating is less than F critical value, when showing 0.05 significance, vibration test proficiency testing device
Resonant frequency is uniform.
Conclusion: the vibration test proficiency testing device in the present embodiment meets uniformity requirement.
Test of the vibration test proficiency testing device to shake table in the present embodiment, according to GB/T2423.10-2008
" electric and electronic product environmental test part 2: specimen method tests Fc: vibration (sine) ", IEC60068-2-6:2007
" Environmental testing-Part 2-6:Tests-Test Fc:Vibration (sinusoidal) " (Chinese name
Referred to as " part the-the 2-6 of environmental test: test-test Fc: vibration (sine) ") requirement tested.
Device overall structure in the present embodiment is simple, and can reuse 200,000 times or more, at low cost, volume
It is small, convenient for collecting and transport.
The above embodiments of the present invention is not the restriction to scope of protection of the utility model, the reality of the utility model
It is without being limited thereto to apply mode, all this kind above content according to the present utility model, according to the ordinary technical knowledge of this field and used
With means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model above structure is made its
The modification, replacement or change of its diversified forms, shall fall within the scope of the present invention.
Claims (6)
1. a kind of electric and electronic product vibration test proficiency testing device, which is characterized in that the verifying device includes pedestal, branch
Fagging and hanging stick, the support plate are vertically mounted at the upper surface center of the pedestal；Be provided on the pedestal for
The mounting hole of vibration table connection；One end of the hanging stick is vertically welded at the center of the support plate, and the other end is detachable
Clump weight is installed；Sensor is mounted on the hanging stick and the pedestal, the sensor passes through data line and external control
Device electrical connection processed.
2. electric and electronic product vibration test proficiency testing device according to claim 1, which is characterized in that the sensing
The vibration frequency monitoring range of device is 1-3200Hz.
3. electric and electronic product vibration test proficiency testing device according to claim 2, which is characterized in that the sensing
Device includes monitoring sensor and control sensor, and the control sensor is mounted on the upper surface of the pedestal, for detecting vibration
The vibration frequency and acceleration that dynamic platform generates；The monitoring sensor is mounted on hanging stick, for detectability verifying device
Resonant frequency and acceleration.
4. electric and electronic product vibration test proficiency testing device according to claim 1, which is characterized in that the installation
Hole number is 4-8, and the mounting hole is respectively along the length and width direction equidistantly distributed of the pedestal.
5. electric and electronic product vibration test proficiency testing device according to claim 1, which is characterized in that the bottom
Seat, support plate and hanging stick are fabricated by identical metal material.
6. electric and electronic product vibration test proficiency testing device according to claim 1, which is characterized in that the counterweight
Block is threadedly coupled with the hanging stick, and the mass range of the clump weight is 40-400g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821653292.9U CN209656238U (en) | 2018-10-12 | 2018-10-12 | A kind of electric and electronic product vibration test proficiency testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821653292.9U CN209656238U (en) | 2018-10-12 | 2018-10-12 | A kind of electric and electronic product vibration test proficiency testing device |
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| Publication Number | Publication Date |
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| CN209656238U true CN209656238U (en) | 2019-11-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067223A (en) * | 2020-09-03 | 2020-12-11 | 威凯检测技术有限公司 | Impact test capability verification method based on maximum impact response peak acceleration |
| CN112161693A (en) * | 2020-09-04 | 2021-01-01 | 威凯检测技术有限公司 | Method for detecting vibration frequency of electric toothbrush |
-
2018
- 2018-10-12 CN CN201821653292.9U patent/CN209656238U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067223A (en) * | 2020-09-03 | 2020-12-11 | 威凯检测技术有限公司 | Impact test capability verification method based on maximum impact response peak acceleration |
| CN112161693A (en) * | 2020-09-04 | 2021-01-01 | 威凯检测技术有限公司 | Method for detecting vibration frequency of electric toothbrush |
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