CN106546398A - A kind of universal circuit board clamp - Google Patents
A kind of universal circuit board clamp Download PDFInfo
- Publication number
- CN106546398A CN106546398A CN201610935992.6A CN201610935992A CN106546398A CN 106546398 A CN106546398 A CN 106546398A CN 201610935992 A CN201610935992 A CN 201610935992A CN 106546398 A CN106546398 A CN 106546398A
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- CN
- China
- Prior art keywords
- circuit board
- screw rod
- fixed
- adjusting screw
- pedestal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Tests Of Electronic Circuits (AREA)
Abstract
The invention discloses a kind of universal circuit board clamp, including two mutually isostructural pedestals, two pedestals are arranged in specular, being equipped with each pedestal more than a set of is used for the fixation kit of fixing circuit board, circuit board is vertically fixed between two pedestals by fixation kit, often covering fixation kit includes fixed block, movable block and adjusting screw rod, fixed block is fixed on pedestal the upper end for being used for fixing circuit board, movable block be sheathed on adjusting screw rod and with adjusting screw rod rotation and elevating movement, the lower end of circuit board is fixed to correct position for adjusting.Simple compact, the convenient to operation, highly versatile of present configuration, stability are high.
Description
Technical field
Present invention relates generally to circuit board testing equipment field, and in particular to a kind of to try for track traffic product stress
The universal circuit board clamp tested.
Background technology
When current track traffic products circuit board carries out strenuous test, accelerated life test or accelerated degradation test, Jing is normal
Vibration stress or various stress resultants can be selected to be tested.Truly to reduce the operating mode of circuit board to be tested, fixture need to be used
The modes such as installation are vertically installed or lain low according to live mode by circuit board product to be tested being fixed on test platform is carried out
Stress test.Fixture is primarily to fastening circuit board and transmitting vibration or the effect of combined stress, this requires the folder for designing
Tool must assure that enough rigidity, undergo hot and humid air not deformation of products and corrosion in case, multiple degree of freedom of transmission
Vibration stress is undistorted, consistent with table top setting value.There is following technical problem in existing fixture：
（1）Existing fixture is not general enough, needs the line space design system of the size and screw according to the punching of the circuit board of different size
Make clamping device, generally require individually designed multiple different size of fixtures, cause the test period to spin out, experimentation cost it is high, with
More, possible each a kind of fixture model of test products correspondence that carries out test products, the money such as plenty of time and funds is consumed
Source, also largely effects on test progress.
（2）Not enough, when vibration stress is carried out or various stress resultants are tested, fixture is easily caused existing fixture stability
Loosen so that clamped circuit board also loosens, so be likely to result in circuit board drop, the wind such as contact short circuit, circuit board damage
Danger, not only so that test failure, and causes waste of material, increased job costs.
The content of the invention
Technical problem solved by the invention is：For the problem that prior art is present, there is provided a kind of simple structure is tight
Gather, the universal circuit board folder for track traffic product stress test that convenient to operation, highly versatile, stability are high
Tool.
To solve above-mentioned technical problem, the present invention is employed the following technical solutions：
A kind of universal circuit board clamp, including two mutually isostructural pedestals, two pedestals are arranged in specular, often
Being equipped with the individual pedestal more than a set of is used for the fixation kit of fixing circuit board, and the circuit board is vertical by fixation kit
It is fixed between two pedestals, often covering the fixation kit includes fixed block, movable block and adjusting screw rod, and the fixed block is solid
Upper end on the pedestal for fixing circuit board, the movable block be sheathed on adjusting screw rod and with adjusting screw rod rotation and
Elevating movement, for adjust the lower end of circuit board is fixed to correct position.
As a further improvement on the present invention, the bottom surface of the pedestal is provided with multiple regulation fixing holes for pedestal is solid
On test platform, multiple fixing holes that adjust are arranged in array for adjusting pedestal horizontal direction on the test platform
Position.
As a further improvement on the present invention, multiple regulation fixing holes are diagonally disposed long elliptical hole.
As a further improvement on the present invention, multiple different-diameters are equipped with more on each described fixed block and movable block
Silk hole, the circuit board for fixing different size.
As a further improvement on the present invention, the fixation kit also includes multiple insulating supporting posts, multiple institutes when fixed
State insulating supporting post extrude respectively be supported between fixed block and circuit board, between movable block and circuit board with formed insulation between
Away from.
As a further improvement on the present invention, more than one first fixing hole is equipped with each described movable block and is consolidated
Determine bolt, each described pedestal is equipped with multiple vertically disposed second fixing holes along the lifting travel of movable block, when described
Movable block lift adjustment in place after, the fixing bolt passes through the first fixing hole and the second fixing hole movable block is fixed on base
On seat.
As a further improvement on the present invention, each described first fixing hole is the circle being adapted with fixing bolt and is led to
Hole, each second fixing hole are the long elliptical hole being vertically arranged.
As a further improvement on the present invention, one end of each fixing bolt offers the first pin hole, is used for
After fixing bolt is fixed insert latch to prevent fixing bolt from coming off.
As a further improvement on the present invention, upper and lower two screw rod installation portions, the tune are equipped with each described pedestal
The lower end activity of section screw rod is inserted in the screw rod installation portion of bottom, the screw rod installation portion of the upper end of the adjusting screw rod from top
It is interior through and out, the top that the adjusting screw rod stretches out be provided with wrench element coordinate screw portion, for turning regulation spiral shell
Bar rotates.
As a further improvement on the present invention, the top of each adjusting screw rod is additionally provided with for secured adjusted screw rod
Slotted nut, when rotation adjust in place after, the slotted nut from it is upper screw-in adjusting screw rod on and tighten be fixed on screw rod installation
So that adjusting screw rod can not rotate, the top of the adjusting screw rod is further opened with inserting with slotted nut coordinates second for the top surface in portion
Pin-and-hole, for latch is inserted after slotted nut is tightened preventing slotted nut from loosening.
As a further improvement on the present invention, each described adjusting screw rod is trapezoidal thread bar.
As a further improvement on the present invention, each described pedestal includes base plate and one piece be vertically fixed on base plate
Gripper shoe and two blocks of side plates, the gripper shoe are connected between two blocks of side plates and are supported with being formed to two blocks of side plates, each described side
A set of fixation kit is equipped with plate.
Compared with prior art, it is an advantage of the current invention that：
（1）The universal circuit board clamp of the present invention, can be applied not only to the circuit board of different in width specification, but also can
Suitable for the circuit board of different length specification.Left and right adjustment is realized simultaneously, is adjusted up and down so that fixture highly versatile, energy
Enough suitable for the circuit board of different size specification, staff is shortened without individually designed multiple different size of fixtures again
Test period, experimentation cost is reduced, saved plenty of time and funds resource.
（2）The universal circuit board clamp of the present invention, is equipped with multiple different-diameters on each fixed block and movable block
More silk hole, the circuit board for different size is fixed by fixed screw.By above particular design, one be to enable into
One step realizes the distance fine regulation of upper and lower installation position, further to improve the versatility of the present invention.Two is that the diameter in more silk hole differs,
Can be adapted to the circuit board without fixed hole position, quickly to carry out distribution installation.
（3）The present invention universal circuit board clamp, by arrange the first fixing hole, fixing bolt, the second fixing hole, one
Pin hole, slotted nut, second pin hole etc. so that fixture stability is strong, are carrying out vibration stress or various stress resultants examination
When testing, clamped circuit board can keep firm, so do not result in circuit board drop, the wind such as contact short circuit, circuit board damage
Danger, it is ensured that being normally carried out for test, reduces job costs.
（4）The universal circuit board clamp of the present invention, by the special construction for arranging gripper shoe and two blocks of side plates, can be very
Good guarantee fixture rigidity so that multiple degree of freedom vibration stresses of transmission are undistorted, consistent with table top setting value, effectively protects
The accuracy of confirmatory test.Meanwhile, this structure design enables this fixture while clamping two pieces of same sizes or different rule
The circuit board of lattice is tested simultaneously, is further increased versatility, is further increased work efficiency, reduces and test into
Originally, accelerate test progress.
Description of the drawings
Fig. 1 be the present invention universal circuit board clamp using when stereochemical structure principle schematic.
Fig. 2 is the sectional perspective principle schematic diagram. of the universal circuit board clamp of the present invention.
Fig. 3 be the present invention universal circuit board clamp using when face principle schematic diagram..
Marginal data：
1st, pedestal；11st, adjust fixing hole；12nd, the second fixing hole；13rd, screw rod installation portion；14th, base plate；15th, gripper shoe；16th, side
Plate；2nd, fixation kit；21st, fixed block；22nd, movable block；221st, the first fixing hole；222nd, fixing bolt；23rd, adjusting screw rod；
231st, screw portion；232nd, slotted nut；233rd, the second pin hole；24th, more silk hole；3rd, test platform.
Specific embodiment
The present invention is described in further detail below in conjunction with specific embodiments and the drawings.
As shown in Figure 1 to Figure 3, the present invention provides a kind of universal circuit board clamp, including two mutually isostructural pedestals
1, two pedestals 1 are arranged in specular, and being equipped with each pedestal 1 more than a set of is used for the fixation kit 2 of fixing circuit board,
Circuit board is vertically fixed between two pedestals 1 by fixation kit 2, and often covering fixation kit 2 includes fixed block 21, movable block
22 and adjusting screw rod 23, fixed block 21 is fixed on pedestal 1 upper end for being used for fixing circuit board, and movable block 22 is sheathed on regulation spiral shell
On bar 23 and with adjusting screw rod 23 rotation and elevating movement, for adjust to correct position will be the lower end of circuit board solid
It is fixed.The universal circuit board clamp of the present invention, highly versatile can be applied to the circuit board of different in width specification, solid when needing
Regularly, first by circuit board（Such as A in Fig. 1, Fig. 3）It is vertical to place and the upper end of circuit board is fixed by two fixed blocks 21, so
Adjusting screw rod 23 is rotated afterwards so that be set in the lifting operation of movable block 22 of adjusting screw rod 23, and movable block 22 is adjusted to suitable
Close the position of fixing circuit board lower end, then fix circuit board lower end using two movable blocks 22, so far, circuit board it is upper and lower
Four positions are fixedly secured on two pedestals 1, good fixing effect, you can carry out follow-up test.
As shown in figure 1, further, in the preferred embodiment, the bottom surface of pedestal 1 is provided with multiple regulation fixing holes 11 and is used for
Pedestal 1 is fixed on test platform 3, multiple regulation fixing holes 11 are arranged in array for adjusting pedestal 1 in test platform 3
The position of horizontal direction.It is well known that multiple mounting hole sites on test platform 3, are provided with, and the fixture of the present invention is in bottom surface
Also it is correspondingly arranged multiple in array arrangement regulation fixing hole 11 so that operator can easily move left and right two pedestals 1
To adjust the mounting distance between two pedestals 1, and fixing hole 11 and the multiple installing holes on test platform 3 are adjusted using multiple
Position cooperation is fixed.The special scientific design by more than so that the fixture of the present invention can be applied not only to difference
The circuit board of width specifications, but also the circuit board of different length specification can be applied to.Simultaneously realize left and right adjustment, on
Lower adjustment, further such that fixture highly versatile, can be applied to the circuit board of different size specification, staff is without single again
Multiple different size of fixtures are solely designed, the test period is shortened, is reduced experimentation cost, saved plenty of time and funds money
Source.
As shown in figure 1, further, in the preferred embodiment, multiple fixing holes 11 that adjust are diagonally disposed long ellipse
Through hole.This enables staff more easily, efficiently to realize fine setting.In the present embodiment, each pedestal 1 is by 9
M12 screws are fixed, so bottom surface has opened up 9 oblique 45 ° of elongated holes correspondences, 9 M12 screws." projection width " of elongated hole
For 50mm, then move left and right pedestal 1 simultaneously after initial placement, then can be by length adjustment 0-100mm of adapter circuit plate, if needing
When adjusting more than 100mm, directly by left or right fixture toward one or more screw hole positions of a side shifting.Then realize that N times of 100mm is fitted
Regulation with circuit board length.
As shown in Figure 2 and Figure 3, further, in the preferred embodiment, it is equipped with each fixed block 21 and movable block 22 many
The more silk hole 24 of individual different-diameter, the circuit board for different size is fixed by fixed screw.By above particular design,
One is to enable further to realize the distance fine regulation of upper and lower installation position, further to improve the versatility of the present invention.Two is more
The diameter in silk hole 24 differs, and can be adapted to the circuit board without fixed hole position, quickly to carry out distribution installation.In this enforcement
In example, 24 diameter of more silk hole on each fixed block 21 and movable block 22 is respectively 3mm, 5mm, 8mm, 10mm.
Further, in the preferred embodiment, fixation kit 2 also includes multiple insulating supporting posts（Not shown in figure）, it is fixed
When multiple insulating supporting posts extrude respectively be supported between fixed block 21 and circuit board, between movable block 22 and circuit board with formed
Insulation clearance.So that in process of the test, the fixed block 21 and movable block 22 of metal will not be invented with the solder joint on circuit board etc.
Contact, is not in the risk of short circuit, circuit board damage.
As shown in Figure 2 and Figure 3, further, in the preferred embodiment, more than one is equipped with each movable block 22
One fixing hole 221 and fixing bolt 222, each pedestal 1 are equipped with multiple vertically disposed along the lifting travel of movable block 22
Second fixing hole 12, when 22 lift adjustment of movable block in place after, fixing bolt 222 is fixed through the first fixing hole 221 and second
Hole 12 is so that movable block 22 is fixed on pedestal 1.By arrangement above so that fixture stability is strong, carry out vibration stress or
When various stress resultants are tested, movable block 22 will not loosen so that clamped circuit board also keeps firm, and then does not result in
Circuit board drops, contact short circuit, circuit board damage equivalent risk, it is ensured that being normally carried out for test, reduces job costs.
As shown in Figure 2 and Figure 3, further, in the preferred embodiment, each first fixing hole 221 is and fixing bolt
222 manholes being adapted, each the second fixing hole 12 are the long elliptical hole being vertically arranged.Adaptable manhole
Fixing bolt 222 and the firm connection between the two of movable block 22 are ensure that, and long elliptical hole can play adjustment
Effect, it is ensured that the quick fixation between three, had both improve work efficiency, in turn ensure that fixed effect.
As shown in Figure 2 and Figure 3, further, in the preferred embodiment, one end of each fixing bolt 222 offers first
Pin hole, for latch is inserted after fixing bolt 222 is fixed preventing fixing bolt 222 from coming off.This can be further ensured that
When carrying out vibration stress or various stress resultants test, movable block 22 will not loosen, and further enhancing fixture stability.
As shown in Figure 2 and Figure 3, further, in the preferred embodiment, it is equipped with upper and lower two screw rods to install on each pedestal 1
Portion 13, the lower end activity of adjusting screw rod 23 are inserted in the screw rod installation portion 13 of bottom, and the upper end of adjusting screw rod 23 is from top
In screw rod installation portion 13 through and out, the top that adjusting screw rod 23 stretches out be provided with wrench element coordinate screw portion 231, with
Rotate in adjusting screw rod 23 is turned.This is easy to operator quickly to rotate adjusting screw rod 23, finally quickly realizes movable block
22 regulation up and down.
As shown in Figure 2 and Figure 3, further, in the preferred embodiment, the top of each adjusting screw rod 23 is additionally provided with for solid
Determine the slotted nut 232 of adjusting screw rod 23, after rotation is adjusted in place, slotted nut 232 is screwed on adjusting screw rod 23 simultaneously from upper
The top surface that is fixed on screw rod installation portion 13 is tightened so that adjusting screw rod 23 can not rotate, its bottom surface after slotted nut 232 is tightened
Can be dead with the top surface of screw rod installation portion 13 patch, this prevents adjusting screw rod 23 from rotating.And the top of adjusting screw rod 23 is also opened
Be provided with slotted nut 232 coordinate the second pin hole 233, for after slotted nut 232 is tightened insert latch to prevent out
Groove nut 232 loosens.These measures are further ensured that when carrying out vibration stress or various stress resultants and testing, adjusting screw rod 23
Will not loosen, further such that clamped circuit board also keeps firm, further increase the stability of present clip.
As shown in Figure 1 to Figure 3, further, in the preferred embodiment, each adjusting screw rod 23 is trapezoidal thread bar.Ladder
Shape threaded rod can form lifting well with movable block 22 and coordinate, and movable block 22 is difficult to slide easily, after facilitating implementation adjustment
Carry out firm operation.
As shown in Figure 1 to Figure 3, further, in the preferred embodiment, each pedestal 1 includes base plate 14 and vertically fixes
One piece of gripper shoe 15 and two blocks of side plates 16 on the base plate 14, gripper shoe 15 are connected between two blocks of side plates 16 with to two blocks of side plates
16 form support, are equipped with a set of fixation kit 2 on each side plate 16.Due to being to carry out vibration stress or various stress resultants examination
Test, this structure can be good at ensureing rigidity so that multiple degree of freedom vibration stresses of transmission are undistorted, and table top setting value
It is consistent, the accuracy of test is effectively ensured.Meanwhile, this structure design enables this fixture while clamping two pieces of identical rule
The circuit board of lattice or different size is tested simultaneously, further increases versatility, further increases work efficiency, drop
Low experimentation cost, accelerate test progress.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
All technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
For those of ordinary skill, some improvements and modifications without departing from the principles of the present invention should be regarded as the protection of the present invention
Scope.
Claims (12)
1. a kind of universal circuit board clamp, it is characterised in that including two mutually isostructural pedestals（1）, two pedestals
（1）Arrange in specular, each described pedestal（1）On be equipped with it is a set of more than be used for fixing circuit board fixation kit（2）,
The circuit board passes through fixation kit（2）Two pedestals are fixed on vertically（1）Between, often cover the fixation kit（2）Include
Fixed block（21）, movable block（22）And adjusting screw rod（23）, the fixed block（21）It is fixed on pedestal（1）It is upper to be used for permanent circuit
The upper end of plate, the movable block（22）It is sheathed on adjusting screw rod（23）Above and with adjusting screw rod（23）Rotation and elevating movement,
The lower end of circuit board is fixed to correct position for adjusting.
2. universal circuit board clamp according to claim 1, it is characterised in that the pedestal（1）Bottom surface be provided with
Multiple regulation fixing holes（11）For by pedestal（1）It is fixed on test platform, multiple regulation fixing holes（11）In array
Arrange for adjusting pedestal（1）The position of horizontal direction on the test platform.
3. universal circuit board clamp according to claim 2, it is characterised in that multiple regulation fixing holes（11）
For diagonally disposed long elliptical hole.
4. universal circuit board clamp according to claim 1, it is characterised in that each described fixed block（21）And activity
Block（22）On be equipped with the more silk hole of multiple different-diameters（24）, for the circuit board of fixed different size.
5. the universal circuit board clamp stated according to claim 4, it is characterised in that the fixation kit（2）Also include multiple
Insulating supporting post, when fixed, multiple insulating supporting posts are extruded respectively and are supported in fixed block（21）Between circuit board, activity
Block（22）Forming insulation clearance between circuit board.
6. universal circuit board clamp according to claim 1, it is characterised in that each described movable block（22）On be all provided with
There is more than one first fixing hole（221）And fixing bolt（222）, each described pedestal（1）Along movable block（22）Lifting
Multiple vertically disposed second fixing holes are equipped with stroke（12）, when the movable block（22）Lift adjustment in place after, it is described
Fixing bolt（222）Through the first fixing hole（221）With the second fixing hole（12）With by movable block（22）It is fixed on pedestal（1）
On.
7. universal circuit board clamp according to claim 6, it is characterised in that each described first fixing hole（221）
It is and fixing bolt（222）Adaptable manhole, each described second fixing hole（12）It is the length being vertically arranged ellipse
Round tube hole.
8. universal circuit board clamp according to claim 7, it is characterised in that each described fixing bolt（222）'s
One end offers the first pin hole, in fixing bolt（222）Latch is inserted after fixation to prevent fixing bolt（222）It is de-
Fall.
9. universal circuit board clamp according to claim 1, it is characterised in that each described pedestal（1）On be equipped with
Upper and lower two screw rod installation portions（13）, the adjusting screw rod（23）Lower end activity be inserted in the screw rod installation portion of bottom（13）
It is interior, the adjusting screw rod（23）Upper end from the screw rod installation portion on top（13）It is interior through and out the adjusting screw rod（23）
The top stretched out be provided with wrench element coordinate screw portion（231）, for turning adjusting screw rod（23）Rotation.
10. universal circuit board clamp according to claim 9, it is characterised in that each described adjusting screw rod（23）'s
Top is additionally provided with for secured adjusted screw rod（23）Slotted nut（232）, after rotation is adjusted in place, the slotted nut
（232）From upper screw-in adjusting screw rod（23）Go up and tighten and be fixed on screw rod installation portion（13）Top surface so that adjusting screw rod（23）No
Can rotate, the adjusting screw rod（23）Top be further opened with and slotted nut（232）The second pin hole for coordinating（233）, use
In in slotted nut（232）Latch is inserted after tightening to prevent slotted nut（232）Loosen.
The 11. universal circuit board clamps stated according to claim 1, it is characterised in that each described adjusting screw rod（23）It is
Trapezoidal thread bar.
The 12. universal circuit board clamps stated according to claim 1, it is characterised in that each described pedestal（1）Include base plate
（14）Base plate is fixed on vertically（14）On one piece of gripper shoe（15）With two blocks of side plates（16）, the gripper shoe（15）It is connected to
Two blocks of side plates（16）Between with to two blocks of side plates（16）Formed and supported, each described side plate（16）On be equipped with a set of fixation kit
（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935992.6A CN106546398B (en) | 2016-11-01 | 2016-11-01 | Universal circuit board clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610935992.6A CN106546398B (en) | 2016-11-01 | 2016-11-01 | Universal circuit board clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106546398A true CN106546398A (en) | 2017-03-29 |
| CN106546398B CN106546398B (en) | 2020-06-26 |
Family
ID=58392564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610935992.6A Active CN106546398B (en) | 2016-11-01 | 2016-11-01 | Universal circuit board clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106546398B (en) |
Cited By (6)
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| CN108548678A (en) * | 2018-04-09 | 2018-09-18 | 北京海纳川汽车部件股份有限公司 | Axle noise experimental test tooling |
| CN108982929A (en) * | 2018-09-28 | 2018-12-11 | 合肥海戈电子科技有限公司 | A kind of clamping device of circuit board life test |
| CN109632226A (en) * | 2019-01-11 | 2019-04-16 | 北京长城华冠汽车科技股份有限公司 | Fitting device for wiring board vibration test |
| CN110806296A (en) * | 2019-11-20 | 2020-02-18 | 北京工业大学 | Bistable laminated plate vibration experiment clamping device |
| CN111752354A (en) * | 2020-07-13 | 2020-10-09 | 遥领(杭州)信息技术服务有限公司 | Computer motherboard protection device |
| CN111896778A (en) * | 2020-07-15 | 2020-11-06 | 中车株洲电力机车研究所有限公司 | HALT test fixture for PCBA plug-in and mounting method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548678A (en) * | 2018-04-09 | 2018-09-18 | 北京海纳川汽车部件股份有限公司 | Axle noise experimental test tooling |
| CN108982929A (en) * | 2018-09-28 | 2018-12-11 | 合肥海戈电子科技有限公司 | A kind of clamping device of circuit board life test |
| CN108982929B (en) * | 2018-09-28 | 2020-08-21 | 合肥海戈电子科技有限公司 | Clamping device for testing service life of circuit board |
| CN109632226A (en) * | 2019-01-11 | 2019-04-16 | 北京长城华冠汽车科技股份有限公司 | Fitting device for wiring board vibration test |
| CN110806296A (en) * | 2019-11-20 | 2020-02-18 | 北京工业大学 | Bistable laminated plate vibration experiment clamping device |
| CN110806296B (en) * | 2019-11-20 | 2021-04-16 | 北京工业大学 | Bistable laminated plate vibration experiment clamping device |
| CN111752354A (en) * | 2020-07-13 | 2020-10-09 | 遥领(杭州)信息技术服务有限公司 | Computer motherboard protection device |
| CN111896778A (en) * | 2020-07-15 | 2020-11-06 | 中车株洲电力机车研究所有限公司 | HALT test fixture for PCBA plug-in and mounting method |
| CN111896778B (en) * | 2020-07-15 | 2023-05-26 | 中车株洲电力机车研究所有限公司 | HALT test fixture for PCBA plug-in and mounting method |
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|---|---|
| CN106546398B (en) | 2020-06-26 |
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