CN108072832A - A kind of test fixture of the pcb board with stamp hole - Google Patents
A kind of test fixture of the pcb board with stamp hole Download PDFInfo
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- CN108072832A CN108072832A CN201810077969.7A CN201810077969A CN108072832A CN 108072832 A CN108072832 A CN 108072832A CN 201810077969 A CN201810077969 A CN 201810077969A CN 108072832 A CN108072832 A CN 108072832A
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- 238000012360 testing method Methods 0.000 title claims abstract description 119
- 239000000758 substrate Substances 0.000 claims abstract description 76
- 239000004020 conductor Substances 0.000 claims abstract description 16
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 description 3
- 238000010923 batch production Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000008162 cooking oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2801—Testing of printed circuits, backplanes, motherboards, hybrid circuits or carriers for multichip packages [MCP]
- G01R31/2806—Apparatus therefor, e.g. test stations, drivers, analysers, conveyors
- G01R31/2808—Holding, conveying or contacting devices, e.g. test adapters, edge connectors, extender boards
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- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
Abstract
The present invention relates to test devices, more particularly to a kind of test fixture of the pcb board with stamp hole, the deformed spring pin that test fixture includes test substrate and is arranged on test substrate, test substrate are equipped with the notch through test substrate, edge distribution of multiple deformed spring pins along notch；Deformed spring pin is bent by strip conductive material, deformed spring pin includes fixed part and deformations, fixed part includes restriction section and inserting section, deformations include deformation section and the free segment with the linkage of deformation section, deformation section is between restriction section and free segment, and inserting section and deformation section are respectively positioned at the both sides of restriction section；By inserting section and test substrate connection, deformations abut to limit position of the pcb board compared with test substrate with the stamp hole on pcb board by deformation section fixed part.Invention increases the contact area of stamp hole on deformed spring pin and pcb board, the fixed effect of pcb board can be improved, improves the reliability of contact.
Description
Technical field
The present invention relates to test device, more particularly to a kind of test fixture of the pcb board with stamp hole.
Background technology
PCB (Printed Circuit Board), Chinese is printed circuit board, also known as printed wiring board, is important
Electronic unit, be electronic component supporter, be electronic component electrical connection carrier.
With the development of electronics technology, the function of chip is stronger and stronger, and peripheral circuit is important these with also increasing
Function be placed on one piece of core board, can solve asking for miniaturization and connection reliability using the welding manner of stamp hole
Topic；But since stamp hole is distributed in the edges of boards of pcb board, the spacing between stamp hole is overstocked, and pad is smaller, to veneer PCBA
(PCBA is the abbreviation of English Printed Circuit Board+Assembly, that is to say, that PCB hollow plates pass through SMT piece uploadings, then
By the entire processing procedure of DIP plug-in units, abbreviation PCBA) test of function is relatively difficult, the testing jig provided currently on the market
All be using thimble by the way of pcb board is positioned, during positioning, the stamp hole of the end abutment pcb board of thimble, thimble with
The upper surface substrate-parallel of pcb board, there are following defects for this mode：Thimble frock is expensive, complex manufacturing technology, it is desirable that
Precision is high；Thimble and stamp hole contact area are small, and reliability is low, bad maintenance, are unfavorable for batch production test.
The content of the invention
For the above problem of the prior art, it is an object of the invention to provide a kind of surveys of the pcb board with stamp hole
Fixture is tried, which is coordinated using the stamp hole of deformed spring pin and pcb board, increases the contact surface of deformed spring pin and stamp hole
Product, can conveniently and efficiently position pcb board.
The present invention provides a kind of test fixture for being used for the pcb board with stamp hole, including testing substrate, the test base
Plate is equipped with the notch through the test substrate, which is characterized in that multiple deformed spring pins are additionally provided on the test substrate,
Edge distribution of multiple deformed spring pins along the notch；
The deformed spring pin is bent by strip conductive material, and deformed spring pin includes fixed part and deformations,
The fixed part includes restriction section and inserting section, and the deformations include deformation section and the free segment with deformation section linkage,
For the deformation section between the restriction section and the free segment, the inserting section and the deformation section are located at the limit respectively
The both sides of section processed；
The fixed part by the inserting section and the test substrate connection, the deformations by the deformation section with
Stamp hole on pcb board abuts to limit position of the pcb board compared with test substrate.
Further, the test substrate is equipped with multigroup mounting hole, and the mounting hole divides along the edge of the notch
Cloth, the deformed spring pin pass through the mounting hole and the test substrate connection.
Preferably, every group of mounting hole includes the first mounting hole and the second mounting hole；
The inserting section is fixed in first mounting hole, and the restriction section and deformation section are located at the test substrate
Top, the free segment are located in second mounting hole and can be moved in second mounting hole, and the deformation section is used for
It abuts, and can be deformed upon when the stamp hole is subject to squeeze with the stamp hole on pcb board, so as to drive the free segment
It is moved in second mounting hole.
Preferably, the restriction section and inserting section form city wall pile shape.
Preferably, the inserting section passes through first mounting hole and passes through connecting material and is fixed, second peace
Dress hole is long stripes through hole.
Preferably, the deformation section includes supporting section and connecting section, and the supporting section connects with restriction section, the connecting section
Connect with free segment, the connecting section tilts to the notch and forms acute angle between the test substrate, described to support
Section is connect for being abutted with the stamp hole on pcb board, the supporting section is used to provide and extruding force side when connecting section is squeezed
To opposite support force.
Preferably, the angle between the connecting section and the test substrate is less than 80 °.
Further, the test fixture further includes ejecting mechanism, and the ejecting mechanism is arranged on the test substrate
Lower section, the notch of test substrate described in the knock-pin face of ejecting mechanism.
Preferably, the notch is right along at least one set of the notch for rectangle, the mounting hole and deformed spring pin
Side is set.
Preferably, the cross section of the deformed spring pin is circular, a diameter of 0.2mm-2mm of the cross section.
Due to above-mentioned technical proposal, the present invention has the advantages that：
(1) the deformed spring pin that test fixture provided by the invention includes test substrate and is arranged on test substrate, should
Deformed spring pin is bent by deformable strip conductive material, and fixed part and the test substrate connection of deformed spring pin are consolidated
It is fixed, the deformations of deformed spring pin can when being squeezed flexible deformation.Pcb board is placed on test surface, is made different
The deformations of shape spring needle enter in the stamp hole at pcb board edge, by making pcb board close to test substrate to pcb board force,
Pcb board squeezes the deformations of deformed spring pin during to test substrate movement, make the connecting sections of deformations with
Angle between stamp hole tapers into or even can reach the state that connecting section is bonded completely with the inner wall of stamp hole, so as to profit
Pcb board is clamped with deformed spring pin, compared with using the method that thimble fixes pcb board in the prior art, invention increases different
The contact area of shape spring needle and stamp hole on pcb board can improve the fixed effect of pcb board, improve the reliability of contact.
(2) since deformed spring pin is distributed along the notch edges of test substrate, deformed spring pin can be determined automatically during test
In stamp hole, upward ejecting force is applied to pcb board by ejecting mechanism after being completed, you can make pcb board and abnormity
Spring needle separates, and dismounting is easy, easy to maintain.
(3) compared to thimble, deformed spring needle construction novel and unique of the invention, but to manufacture craft and required precision not
Height easily makes, and production cost is low, is tested beneficial to batch production.
Description of the drawings
It, below will be to required in embodiment or description of the prior art in order to illustrate more clearly of technical scheme
The attached drawing used is briefly described.It should be evident that the accompanying drawings in the following description is only some embodiments of the present invention, it is right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Its attached drawing.
Fig. 1 is a kind of structural representation of test fixture for being used for the pcb board with stamp hole provided in an embodiment of the present invention
Figure；
Fig. 2 is the structure diagram of deformed spring pin provided in an embodiment of the present invention；
Fig. 3 is the structure diagram of test substrate upper installing hole provided in an embodiment of the present invention；
Fig. 4 is the partial schematic diagram of the test fixture provided in an embodiment of the present invention for being used for the pcb board with stamp hole；
Fig. 5 is a kind of use state of test fixture for being used for the pcb board with stamp hole provided in an embodiment of the present invention
Figure；
Fig. 6 is a kind of use state of test fixture for being used for the pcb board with stamp hole provided in an embodiment of the present invention
Figure.
In figure：1- test substrates, 2- notches, 3- deformed spring pins, 4- mounting holes, 5-PCB plates, 6- stamp holes, 31- are fixed
Portion, 32- deformations, the first restriction sections of 311-, the second restriction sections of 312-, the first inserting sections of 313-, the second inserting sections of 314-, 321-
Supporting section, 322- connecting sections, 323- free segments, the first mounting holes of 41-, the second mounting holes of 42-, the second mounting holes of 43-, 44- welderings
Connect hole, 7- knock-pins.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention
The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects
It encloses.
It should be noted that term " first ", " second " in description and claims of this specification and attached drawing etc.
It is the object for distinguishing similar, without being used to describe specific order or precedence.It should be appreciated that the number so used
According to that can exchange in the appropriate case, so that the embodiment of the present invention described herein can be with except illustrating or describing herein
Those beyond order implement.In addition, term " comprising " and " having " and their any deformation, it is intended that covering is not
Exclusive includes.
Embodiment
The present embodiment provides a kind of test fixtures for being used for the pcb board with stamp hole, refer to Fig. 1-6, the test clip
Tool includes testing substrate 1, and the substrate 1 of testing is equipped with the notch 2 through the test substrate, is gone back on the test substrate 1
Equipped with multiple deformed spring pins 3, edge distribution of multiple deformed spring pins 3 along the notch 2；The deformed spring pin
3 are bent by strip conductive material, and deformed spring pin 3 includes fixed part 31 and deformations 32, the fixed part 31 and institute
It states test substrate 1 to connect, the deformations 32 are used to abut to limit pcb board 5 compared with test with the stamp hole 6 on pcb board 5
The position of substrate 1.Preferably, the notch 2 is rectangle, the mounting hole 4 and deformed spring pin 3 along the notch 2 extremely
Few one group of opposite side is set.
Further, the test substrate 1 is equipped with multigroup mounting hole 4, side of the mounting hole 4 along the notch 2
Fate cloth, the deformed spring pin 3 are connected by the mounting hole 4 with the test substrate 1.The mounting hole 4 includes first
4 and second mounting hole 43 of mounting hole.The fixed part 31 includes restriction section and inserting section, and the restriction section and inserting section form city
Pier shape.The deformations 32 include deformation section and the free segment 323 with deformation section linkage, and the deformation section is located at described
Between restriction section and the free segment 323, the inserting section and the deformation section are respectively positioned at the both sides of the restriction section.It is described
Inserting section is fixed in first mounting hole 4, and the restriction section and deformation section are located at the top for testing substrate 1, described
Free segment 323 is located in second mounting hole 43 and can be moved in second mounting hole 43, the deformation section for
Stamp hole 6 on pcb board 5 abuts, and can be deformed upon when the stamp hole 6 is subject to squeeze, so as to drive the freedom
Section 323 moves in second mounting hole 43.
Be preferably carried out mode as one kind, the inserting section through first mounting hole 4 and pass through connecting material into
Row is fixed, and second mounting hole 43 is long stripes through hole.The deformation section includes supporting section 321 and connecting section 322, the branch
Support section 321 connects with restriction section, and the connecting section 322 connects with free segment 323, and the connecting section 322 is tilted to the notch 2
And acute angle is formed between the test substrate 1, the connecting section 322 with the stamp hole 6 on pcb board 5 for abutting, institute
Supporting section 321 is stated for providing the support force opposite with squeezing force direction when connecting section 322 is squeezed.
Mode is preferably carried out as one kind, the angle between the connecting section 322 and the test substrate 1 is less than 80 °.
Further, the test fixture further includes ejecting mechanism, and the ejecting mechanism is arranged on the test substrate 1
Lower section, the notch 2 of test substrate 1 described in 7 face of knock-pin of ejecting mechanism.
Be preferably carried out mode as one kind, the cross section of the deformed spring pin 3 is circle, the cross section it is a diameter of
0.2mm-2mm。
The deformed spring pin that test fixture provided in this embodiment includes test substrate and is arranged on test substrate, this is different
Shape spring needle is bent by deformable strip conductive material, and fixed part and the test substrate connection of deformed spring pin are consolidated
It is fixed, the deformations of deformed spring pin can when being squeezed flexible deformation.Pcb board is placed on test surface, is made different
The deformations of shape spring needle enter in the stamp hole at pcb board edge, by making pcb board close to test substrate to pcb board force,
Pcb board squeezes the deformations of deformed spring pin during to test substrate movement, makes the connecting section 322 of deformations
Angle between stamp hole tapers into or even can reach the state that connecting section 322 is bonded completely with the inner wall of stamp hole,
So as to utilize deformed spring pin clamping pcb board.
Compared with using the method that thimble fixes pcb board in the prior art, the test fixture of the present embodiment increases abnormity
The contact area of spring needle and stamp hole on pcb board can improve the fixed effect of pcb board, improve the reliability of contact.Due to
Deformed spring pin is distributed along the notch edges of test substrate, and deformed spring pin can be automatically positioned in stamp hole during test, is surveyed
Upward ejecting force is applied to pcb board by ejecting mechanism after examination, you can pcb board is made to be separated with deformed spring pin, is torn open
Dress is easy, easy to maintain.Compared to thimble, deformed spring needle construction novel and unique of the invention, but to manufacture craft and precision
It is of less demanding, it easily makes, and production cost is low, is tested beneficial to batch production.
Embodiment
The present embodiment provides a kind of test fixture of the pcb board with stamp hole, which is used to fix pcb board,
Wherein, pcb board is rectangular slab, and the edge of pcb board is evenly distributed with stamp hole, and the shape of stamp hole can be tooth form half bore.Fig. 1
It is a kind of structure diagram of test fixture for being used for the pcb board with stamp hole provided in an embodiment of the present invention, refers to figure
1, the test fixture of the present embodiment includes test substrate 1, the deformed spring pin 3 being arranged on test substrate and is arranged at test base
Ejecting mechanism below plate.
Wherein, test substrate can be made up of PCB technology, can also be made up of insulation board.Test substrate is rectangle
Plate, 1 middle part of test substrate offer rectangular notch 2, and notch 2 is tested corresponding on substrate 1 through the upper and lower surface of test substrate 1
The position at four angles is equipped with mounting hole, tests on substrate 1 and is additionally provided with multigroup mounting hole, and multigroup mounting hole is along four of notch 2
While it is uniformly distributed.Fig. 2 shows one group of mounting hole, refers to Fig. 2, every group of mounting hole include the set gradually the 3rd installation 44,
First mounting hole and the second mounting hole 43, the first mounting hole are divided into as the first mounting hole 41 and the second mounting hole 42, the 3rd installation
44 and first mounting hole of hole, 41 preferably circular hole, the second mounting hole 42 and the second mounting hole 43 are preferably bar hole.3rd peace
44 are filled for welding p-wire.
Deformed spring pin 3 is connected by mounting hole 4 with the test substrate 1.Specifically, deformed spring pin 3 is using elasticity
Preferable strip conductive material is made, and the cross section of conductive material is circular, a diameter of 0.2mm-2mm of the cross section.Fig. 2
It is the structure diagram of deformed spring pin, which is bent to form by conductive material, is divided into fixed part 31 and deformations
32, wherein, fixed part 31 is used for testing substrate connection, and deformations 32 are used to abut with the stamp hole 6 on pcb board.As one
Kind be preferably carried out mode, the shape of fixed part 31 can be city wall pile shape, the shapes of deformations 32 be similar to " Λ " or
" ︹ ".Mode is preferably carried out as one kind, the conductive material can be brass wire or plating nickel wire.
Wherein, the fixed part 31 of deformed spring pin 3 include be sequentially connected the first inserting section 313, the first restriction section 311,
Second inserting section 314 and the second restriction section 312, the deformations 32 of deformed spring pin 3 include deformation section and free segment 323, deformation
The both ends of section connect respectively with the second restriction section 312 and free segment 323.Wherein, the strip conductive material is divided into
One end, the first middle part, the second middle part and the second end, the first inserting section 313 is from the first end of conductive material to a lateral bending
Curved the first middle part into, the second inserting section 314 from conductive material is formed to curving, and deformation section is by the second of conductive material
Middle part is formed to curving, and free segment 323 is bent to form by the second end of conductive material, the first inserting section 313 and second
Conductive material part between inserting section 314 is divided into the first restriction section 311, the conduction material between the second inserting section 314 and deformation section
Material part is the second restriction section 312, and the first inserting section 313, the second inserting section 314 and free segment 323 are respectively positioned on the first inserting section
313 one side, deformation section are located at the opposite side of the first inserting section 313.Preferably, first restriction section and the second restriction section can
With coaxial.
First inserting section 313 is inserted into the first mounting hole 41, and the second inserting section 314 is inserted into the second mounting hole 42, and first
It is fixed between 313 and first mounting hole 41 of inserting section by the method for soldering or gluing, the second inserting section 314 and second
Be fixed between mounting hole 42 by the method for soldering or gluing, the first restriction section 311 and the second restriction section 312 with survey
The upper surface fitting of trial base 1.It is further fixed on the basis of mating by connecting material, grafting can be improved
Cooperation tight ness rating between section and mounting hole, makes the cooperation between deformed spring pin and the first mounting hole more firm, improves connection
Reliability.The free segment 323 enters in the second mounting hole, and can be moved along the long axis direction of the second mounting hole.
The deformation section includes supporting section 321 and connecting section 322, and the supporting section 321 connects with restriction section, the abutting
Section 322 connects with free segment 323, and the connecting section 322 is tilted to the notch 2 and formed between the test substrate 1 small
In 80 ° of acute angle, the connecting section 322 for being abutted with the stamp hole 6 on pcb board, the supporting section 321 be used for
It connects and the support force opposite with squeezing force direction is provided when section 322 is squeezed.
The ejecting mechanism includes knock-pin 7 and driving mechanism, which is located at the lower section of test substrate 1, and face
The notch 2 of the test substrate 1, driving mechanism are used to that knock-pin 7 to be driven to move up and down.
When being tested using the test fixture of the present embodiment pcb board, pcb board is first placed on test surface,
The connecting section 322 of deformed spring pin is made to enter in the stamp hole 6 at pcb board edge, at this time the inner wall of connecting section 322 and stamp hole 6
Between form angle, power from the top down then is applied to pcb board, makes pcb board close to test substrate, pcb board is to test
Substrate squeezes the connecting section 322 of deformed spring pin during, makes connecting section 322 to the direction away from notch 2
Mobile, the angle between connecting section 322 and stamp hole 6, which tapers into, (or even can reach connecting section and the inner wall of stamp hole is complete
The state being bonded entirely), since the supporting section 321 being connected with connecting section 322 is relatively fixed with testing the position of substrate 1, supporting section
321 can be that connecting section 322 provides support force, and connecting section 322 is made of elastic material in addition, thus connecting section 322 can be right
Pcb board forms clamping so as to fixed pcb board.
It is fixed in the prior art using thimble in the method for pcb board, the end of thimble is contacted with the stamp hole of pcb board, top
The contact area in pin and cooking oil coupon hole is no more than the area of thimble end, be easy to cause contact built on the sand, contact reliability it is low, and
The installation accuracy of which is with high requirements and high cost.Compared with using the method that thimble fixes pcb board in the prior art, the present invention
Scheme increases the contact area of deformed spring pin and stamp hole on pcb board, can improve what deformed spring pin was contacted with pcb board
Reliability.
Due to notch edges distribution of the deformed spring pin along test substrate, the notch position of deformed spring pin and test substrate
Deformed spring pin can be automatically positioned in stamp hole when putting lucky correspondence, thus testing, and is not easy to skid off from stamp hole,
Contact is reliable for it, maintains easily.After being completed, driving mechanism driving knock-pin moves up to apply pcb board upward
Ejecting force, you can pcb board is made to be separated with deformed spring pin, it is easy to operate, efficient and easy to maintain.
Each technical characteristic of above example can be combined arbitrarily, to make description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the scope of this specification record.
Above example only expresses the several embodiments of the present invention, and description is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
On the premise of not departing from present inventive concept, various modifications and improvements can be made, these belong to protection scope of the present invention.
Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of test fixture for being used for the pcb board with stamp hole including test substrate (1), is set on the test substrate (1)
There is the notch (2) through the test substrate, which is characterized in that be additionally provided with multiple deformed spring pins on the test substrate (1)
(3), edge distribution of multiple deformed spring pins (3) along the notch (2)；
The deformed spring pin (3) is bent by strip conductive material, and deformed spring pin (3) includes fixed part (31) and shape
Change portion (32), the fixed part (31) include restriction section and inserting section, the deformations (32) include deformation section and with the shape
Become the free segment (323) of section linkage, the deformation section is between the restriction section and the free segment (323), the grafting
Section and the deformation section are located at the both sides of the restriction section respectively；
The fixed part (31) is connected by the inserting section with the test substrate (1), and the deformations (32) are by described
Deformation section abuts to limit position of the pcb board (5) compared with test substrate (1) with the stamp hole (6) on pcb board.
2. a kind of test fixture for being used for the pcb board with stamp hole according to claim 1, which is characterized in that described
It tests substrate (1) and is equipped with multigroup mounting hole (4), edge distribution of the mounting hole (4) along the notch (2) is described different
Shape spring needle (3) is connected by the mounting hole (4) with the test substrate (1).
3. a kind of test fixture for being used for the pcb board with stamp hole according to claim 2, which is characterized in that every group
Mounting hole (4) includes the first mounting hole (4) and the second mounting hole (43)；
The inserting section is fixed in first mounting hole (4), and the restriction section and deformation section are located at the test substrate (1)
Top, the free segment (323) is located in second mounting hole (43) and can be moved in second mounting hole (43),
For being abutted with the stamp hole (6) on pcb board when the stamp hole (6) is subject to squeeze shape can occur for the deformation section
Become, so as to which the free segment (323) be driven to be moved in second mounting hole (43).
4. a kind of test fixture for being used for the pcb board with stamp hole according to claim 3, which is characterized in that described
Restriction section and inserting section form city wall pile shape.
5. a kind of test fixture for being used for the pcb board with stamp hole according to claim 3, which is characterized in that described
Inserting section passes through first mounting hole (4) and passes through connecting material and is fixed, and second mounting hole (43) is strip
Through hole.
6. a kind of test fixture for being used for the pcb board with stamp hole according to claim 3, which is characterized in that described
Deformation section includes supporting section (321) and connecting section (322), and the supporting section (321) connects with restriction section, the connecting section
(322) connect with free segment (323), the connecting section (322) to the notch (2) tilt and with it is described test substrate (1) it
Between form acute angle, the connecting section (322) with the stamp hole (6) on pcb board for abutting, supporting section (321) use
In the support force opposite with squeezing force direction of the offer when connecting section (322) is squeezed.
7. a kind of test fixture for being used for the pcb board with stamp hole according to claim 6, which is characterized in that described
Angle between connecting section (322) and the test substrate (1) is less than 80 °.
8. a kind of test fixture for being used for the pcb board with stamp hole according to claim 1, which is characterized in that described
Test fixture further includes ejecting mechanism, and the ejecting mechanism is arranged on the lower section of the test substrate (1), the ejection of ejecting mechanism
The notch (2) of substrate (1) is tested described in bar (7) face.
9. a kind of test fixture for being used for the pcb board with stamp hole according to claim 2, which is characterized in that described
Notch (2) is set for rectangle, the mounting hole (4) and deformed spring pin (3) along at least one set of opposite side of the notch (2).
10. a kind of test fixture for being used for the pcb board with stamp hole according to claim 1, which is characterized in that described
The cross section of deformed spring pin (3) is circular, a diameter of 0.2mm-2mm of the cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077969.7A CN108072832A (en) | 2018-01-26 | 2018-01-26 | A kind of test fixture of the pcb board with stamp hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810077969.7A CN108072832A (en) | 2018-01-26 | 2018-01-26 | A kind of test fixture of the pcb board with stamp hole |
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| CN108072832A true CN108072832A (en) | 2018-05-25 |
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|---|---|---|---|
| CN201810077969.7A Pending CN108072832A (en) | 2018-01-26 | 2018-01-26 | A kind of test fixture of the pcb board with stamp hole |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112379191A (en) * | 2020-10-13 | 2021-02-19 | 航天科工防御技术研究试验中心 | Burn-in test device |
| CN113556870A (en) * | 2021-06-29 | 2021-10-26 | 青岛海尔科技有限公司 | Circuit board, fixing method and device thereof, storage medium and electronic device |
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