CN208621726U - A kind of light loading structure printed circuit board test fixture - Google Patents
A kind of light loading structure printed circuit board test fixture Download PDFInfo
- Publication number
- CN208621726U CN208621726U CN201821315584.1U CN201821315584U CN208621726U CN 208621726 U CN208621726 U CN 208621726U CN 201821315584 U CN201821315584 U CN 201821315584U CN 208621726 U CN208621726 U CN 208621726U
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- China
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- shank
- copper pipe
- printed circuit
- circuit board
- tube wall
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Abstract
The utility model discloses a kind of light loading structure printed circuit board test fixtures, including probe card, the probe card lower surface is fixedly connected with copper pipe, setting has been equipped with needle tubing in the copper pipe, setting is equipped with protrusive board at left and right sides of the tube wall of the copper pipe, the groove of a circle arc-shaped is provided on the circumferential outer surface of the needle tubing, the groove clamping is arranged between the protrusive board on the left of copper pipe tube wall and the protrusive board on the right side of copper pipe tube wall, the needle tubing lower end is provided with shank slot, shank is slidably fitted in the shank slot, the shank lower end extends downwardly needle tubing, the lower end surface of shank is fixedly connected with syringe needle.The utility model is a kind of simple and reliable for structure, test accuracy rate high light loading structural printing circuit board testing jig small to printed circuit dash-board injury.
Description
Technical field
The utility model relates to circuit board testing jig field, specially a kind of light loading structure printed circuit board test is controlled
Tool.
Background technique
The PCB for having demand to no needle mark test fixture at present is mainly soft board, soft golden plate, the requirement that plate face prints testing needle
It is continuously improved, sees measuring point with 20-40 times of magnifying glass after test, be not allow for testing needle print, main application fields are: high-order HDI
Product, LED product etc. are unable to satisfy this requirement using common test jig；This is that entire printed circuit board test is gone at present
Industry compares focus of attention, if combined tester can be made to realize no needle mark test, so that it may it is hidden to solve the test present on
Suffer from, is also made that contribution outstanding for entire printed circuit board industry.
Summary of the invention
The purpose of this utility model is to provide a kind of light loading structure printed circuit board test fixtures, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of light loading structure printed circuit board survey
Jig, including probe card are tried, the probe card lower surface is fixedly connected with copper pipe, and setting has been equipped with needle tubing in the copper pipe,
Setting is equipped with protrusive board at left and right sides of the tube wall of the copper pipe, and a circle arc-shaped is provided on the circumferential outer surface of the needle tubing
Groove, the groove clamping is arranged between the protrusive board on the left of copper pipe tube wall and the protrusive board on the right side of copper pipe tube wall, under the needle tubing
End is provided with shank slot, shank is slidably fitted in the shank slot, the shank lower end extends downwardly needle tubing, the lower end of shank
Face is fixedly connected with syringe needle.
Preferably, mounting hole is provided at left and right sides of the copper pipe tube wall, bottom plate is arranged in the outside of the mounting hole, described
Bottom plate is fixedly mounted on the outer tube wall of copper pipe by screw, fixed on the surface for the side that bottom plate is contacted with copper pipe outer tube wall to connect
Several springs are connected to, the spring is fixedly connected on protrusive board on the surface of needle tubing side far from bottom plate one end.
Preferably, the protrusion of a ring shape, the circumference of shank shaft upper end are provided on the side wall of the shank slot
One section of recess is provided on face, the protrusion is located at sunk surface, between the top end face of the shank and the upper surface of shank slot
Setting is equipped with probe springs.
Preferably, spring used in the more current probe of the probe springs, elastic force reduce 50 percent, and circle number increases
20 percent.
Preferably, the syringe needle lower end is provided with curved surface needle point, and the surface of the curved surface needle point is the curved surface of similar spherical surface.
Preferably, the spring, bottom plate and protrusive board are all made of copper material.
Compared with prior art, the utility model has the beneficial effects that the utility model is arranged to visit on probe card
The mounting base of needle dismounting, is also replaced with the elastic force more more springs of ringlet number for spring used at present and will be used at present
Angled needle head replacing avoids at curved surface syringe needle and increases syringe needle and print while syringe needle leaves dent on a printed circuit board
The contact area of circuit board processed, improves test accuracy rate.The utility model is that one kind is simple and reliable for structure, to printed circuit board
Damage small, the high light loading structural printing circuit board testing jig of test accuracy rate.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of light loading structure printed circuit board test fixture；
Fig. 2 is the structural schematic diagram at a kind of light loading structure printed circuit board test fixture L；
Fig. 3 is the structural schematic diagram at a kind of light loading structure printed circuit board test fixture K.
In figure: 1- probe card, 2- copper pipe, 3- needle tubing, 4- shank, 5- spring, 6- protrusive board, 7- screw, 8- bottom plate, 9- installation
Hole, 10- groove, 11- recess, 12- protrusion, 13- probe springs, 14- shank slot, 15- curved surface needle point, 16- syringe needle.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1~3, the utility model provides a kind of a kind of light loading structure printed circuit board test of technical solution and controls
Tool, including probe card 1,1 lower surface of probe card are fixedly connected with copper pipe 2, and setting has been equipped with needle tubing 3 in the copper pipe 2,
Setting is equipped with protrusive board 6 at left and right sides of the tube wall of the copper pipe 2, and a circle circular arc is provided on the circumferential outer surface of the needle tubing 3
The groove 10 of shape, the groove 10 be clamped be arranged in the protrusive board 6 on the left of 2 tube wall of copper pipe and the protrusive board 6 on the right side of 2 tube wall of copper pipe it
Between, 3 lower end of needle tubing is provided with shank slot 14, be slidably fitted with shank 4 in the shank slot 14,4 lower end of shank to
Lower stretching needle tubing 3, the lower end surface of shank 4 is fixedly connected with syringe needle 16.
Mounting hole 9 is provided at left and right sides of 2 tube wall of copper pipe, bottom plate 8, the bottom is arranged in the outside of the mounting hole 9
Plate 8 is fixedly mounted on the outer tube wall of copper pipe 2 by screw 7, solid on the surface for the side that bottom plate 8 is contacted with 2 outer tube wall of copper pipe
Surely several springs 5 are connected with, the spring 5 is fixedly connected on protrusive board 6 on the surface of 3 side of needle tubing far from 8 one end of bottom plate.
The protrusion 12 of a ring shape, the periphery of the 4 shaft upper end of shank are provided on the side wall of the shank slot 14
On be provided with one section of recess 11, described raised 12 and be located at 11 surfaces of recess, the upper end of the top end face of the shank 4 and shank slot 14
Setting is equipped with probe springs 13 between face.
Spring used in the more current probe of the probe springs 13, elastic force reduce 50 percent, and circle number increases percentage
20.
16 lower end of syringe needle is provided with curved surface needle point 15, and the surface of the curved surface needle point 15 is the curved surface of similar spherical surface.
The spring 5, bottom plate 8 and protrusive board 6 are all made of copper material.
The working principle of the utility model is: in the utility model, copper pipe 2 is that needle tubing 3 provides installation site, protrusive board 6 with
The fixation to needle tubing 3 is realized in the cooperation of groove 10, and spring 5 is that protrusive board 6 provides support force.Needle tubing 3 is directly placed into copper when installation
Pipe 2 directly extracts needle tubing 3 when need to dismantle.Protrusion 12, which is located in recess 11, plays position-limiting action to shank 4, avoids
Shank 4 is detached from from needle tubing 3.13 parameter of probe springs is adjusted compared with Conventional springs, and elastic force more ringlet number is more, and elastic force reduces
Dent is left on a printed circuit board to avoid curved surface needle point 15, and circle number increases to improve the stability of probe springs 13.Curved surface
Needle point 15 has abandoned original angled needle point, increases while avoiding leaving dent on a printed circuit board and printing electricity
The contact area of road plate improves the accuracy rate of test.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting
Related claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of light loading structure printed circuit board test fixture, including probe card (1), it is characterised in that: the probe card (1)
Lower surface is fixedly connected with copper pipe (2), and setting has been equipped with needle tubing (3) in the copper pipe (2), and the tube wall of the copper pipe (2) is left
Right two sides setting is equipped with protrusive board (6), and the groove (10) of a circle arc-shaped is provided on the circumferential outer surface of the needle tubing (3),
Groove (10) clamping is arranged the protrusive board (6) on the left of copper pipe (2) tube wall and between the protrusive board (6) on the right side of copper pipe (2) tube wall,
Needle tubing (3) lower end is provided with shank slot (14), is slidably fitted with shank (4) in the shank slot (14), the shank (4)
Lower end extends downwardly needle tubing (3), and the lower end surface of shank (4) is fixedly connected with syringe needle (16).
2. a kind of light loading structure printed circuit board test fixture according to claim 1, it is characterised in that: the copper pipe
(2) it is provided with mounting hole (9) at left and right sides of tube wall, bottom plate (8) are arranged in the outside of the mounting hole (9), and the bottom plate (8) passes through
Screw (7) is fixedly mounted on the outer tube wall of copper pipe (2), solid on the surface for the side that bottom plate (8) is contacted with copper pipe (2) outer tube wall
Surely it is connected with several springs (5), the spring (5) is fixedly connected on protrusive board (6) backwards to needle tubing (3) one far from bottom plate (8) one end
On the surface of side.
3. a kind of light loading structure printed circuit board test fixture according to claim 1, it is characterised in that: the shank
It is provided with the protrusion (12) of a ring shape on the side wall of slot (14), is provided with one on the periphery of shank (4) the shaft upper end
Section recess (11), the protrusion (12) are located at recess (11) surface, the top end face of the shank (4) and the upper end of shank slot (14)
Setting is equipped with probe springs (13) between face.
4. a kind of light loading structure printed circuit board test fixture according to claim 3, it is characterised in that: the probe
Spring used in spring (13) more current probe, elastic force reduce 50 percent, and circle number increases by 20 percent.
5. a kind of light loading structure printed circuit board test fixture according to claim 1, it is characterised in that: the syringe needle
(16) lower end is provided with curved surface needle point (15), and the surface of the curved surface needle point (15) is the curved surface of similar spherical surface.
6. a kind of light loading structure printed circuit board test fixture according to claim 2, it is characterised in that: the spring
(5), bottom plate (8) and protrusive board (6) are all made of copper material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821315584.1U CN208621726U (en) | 2018-08-15 | 2018-08-15 | A kind of light loading structure printed circuit board test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821315584.1U CN208621726U (en) | 2018-08-15 | 2018-08-15 | A kind of light loading structure printed circuit board test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208621726U true CN208621726U (en) | 2019-03-19 |
Family
ID=65715802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821315584.1U Active CN208621726U (en) | 2018-08-15 | 2018-08-15 | A kind of light loading structure printed circuit board test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208621726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103199A1 (en) * | 2021-12-07 | 2023-06-15 | 中兴通讯股份有限公司 | Electrical contact probe apparatus |
-
2018
- 2018-08-15 CN CN201821315584.1U patent/CN208621726U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023103199A1 (en) * | 2021-12-07 | 2023-06-15 | 中兴通讯股份有限公司 | Electrical contact probe apparatus |
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