CN201926615U - Drawing test fixture - Google Patents
Drawing test fixture Download PDFInfo
- Publication number
- CN201926615U CN201926615U CN2010206685743U CN201020668574U CN201926615U CN 201926615 U CN201926615 U CN 201926615U CN 2010206685743 U CN2010206685743 U CN 2010206685743U CN 201020668574 U CN201020668574 U CN 201020668574U CN 201926615 U CN201926615 U CN 201926615U
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- CN
- China
- Prior art keywords
- drag hook
- draw ring
- pull
- out test
- test tool
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a drawing test fixture which belongs to the technical field of drawing test and solves the problem that the existing drawing test fixture is easy to lead to inaccurate test results. The drawing test fixture comprises a combining piece and a connecting piece, wherein the combining piece comprises a combining part and a first pull ring or a first drag hook; the combining part is used for combining a bonding pad at one end of a clad layer in a through hole of a circuit board or combining a transition connecting piece on the bonding pad, and the first pull ring or the first drag hook is connected with the combing part; the connecting piece comprises a connecting part; one end of the connecting part is connected with a second pull ring or a second drag hook for connecting the first pull ring or the first drag hook; and the other end of the connecting part is connected with drawing test equipment. The drawing test fixture can be used for testing the combination state of the clad layer in the through hole and the substrate of the circuit board.
Description
Technical field
The utility model relates to the pull-out test technical field, relates in particular to a kind of pull-out test tool that is used to test interior coating of through hole and circuit board substrate bonding state.
Background technology
In wiring board, through hole (via hole) is a kind of common structure, and the device or the circuit that are mainly used in different layers are connected.As shown in Figure 1, be useful on the interior coating 1 of through hole of conduction in the through hole of wiring board, the upper and lower end of coating 1 combines with the pad 2 that is used for connecting circuit or device in the through hole.Obviously, coating 1 should meet certain requirement with the bonding state (as adhesion) of circuit board substrate 3 (being the through-hole wall face) in the through hole, therefore need coating in the through hole 1 to be linked to each other with pull-out test equipment with tool 6, and coating in the through hole 1 carried out pull-out test, analyze pulling capacity, through hole damage situation etc. again to obtain the bonding state of coating 1 and circuit board substrate 3 in the through hole.For small size through hole the through hole of the wiring board of Chip Packaging level (as be used for), owing to directly tool 7 is welded on the pad 2 relatively more difficult, therefore can adopt the Reflow Soldering technology to connect tool 6, promptly on pad 2, be coated with soldering paste 4, and transition piece (for example copper sheet) 5 is placed on the soldering paste 4, heating is solidified so that transition piece 5 and pad 2 are welded together soldering paste 4 again, afterwards tool (as screw etc.) 6 is bonded on the transition piece 5; During test wiring board is fixed, clamped tool 6 with the chuck 7 of pull-out test equipment again, apply pulling force to carry out pull-out test by tool 6 coating 1 in through hole.
The inventor finds that there are the following problems at least in the prior art: the necessary clamping fixture of chuck, between chuck and tool for fixedlying connected, therefore in the process that chuck is clipped on the tool, be easy to because firmly excessive, power thrusts is incorrect, reasons such as tool axis and holder axis are unjustified make tool be subjected to bigger power, this power is transmitted to pad or the interior coating of through hole just may cause that through hole damages (for example causing the interior coating of through hole to separate with circuit board substrate), the pulling force that coating in the through hole is pulled out that the result records is very low even be 0 newton (because through hole reality damaged in the process of chuck is set), but it is again qualified analyzing its bonding state from fracture morphology, thereby causes test result inaccurate.
The utility model content
Embodiment of the present utility model provides a kind of pull-out test tool, and its test result is accurate.
For achieving the above object, embodiment of the present utility model adopts following technical scheme:
A kind of pull-out test tool comprises:
Conjunction, it comprise be used for the wiring board through hole in the pad of coating one end or the joint portion that the transition piece on the described pad combines, and first draw ring that links to each other with described joint portion or first drag hook;
Web member, it comprises connecting portion, and described connecting portion one end connects and is used for second draw ring or second drag hook that link to each other with described first draw ring or first drag hook, and the other end is used for linking to each other with pull-out test equipment.
As a kind of preferred version of the present utility model, described conjunction is a sheet.
As a kind of preferred version of the present utility model, described conjunction is made of metal or alloy.
As a kind of preferred version of the present utility model, described conjunction is made of stainless steel.
As a kind of preferred version of the present utility model, described conjunction is provided for increasing the alligatoring structure of surfaceness at least in the part that is used for combining with described pad or described transition piece.
As a kind of preferred version of the present utility model, described first draw ring or first drag hook are connected the center of described joint portion.
As a kind of preferred version of the present utility model, described first draw ring or first drag hook link to each other with described joint portion by pillar; Or described first draw ring or first drag hook and described joint portion formation integrative-structure.
As a kind of preferred version of the present utility model, have circular arc shaped portion in described first draw ring or first drag hook, and the described joint portion of distance point farthest is the summit of described circular arc shaped portion on described first draw ring or first drag hook; And/or, have circular arc shaped portion in described second draw ring or second drag hook, and the described connecting portion of distance point farthest is the summit of described circular arc shaped portion on described second draw ring or second drag hook.
As a kind of preferred version of the present utility model, described connecting portion is the portion of flexibly connecting.
As a kind of preferred version of the present utility model, the described portion of flexibly connecting is any one in chain, band, the line.
Wherein, for coating in the equirotal through holes in two ends such as column (cylinder or prism) or open column shape, " pad of coating one end in the through hole " is meant the pad of its any end; And for platform shape (round platform or terrace with edge) or hollow the interior coating of through hole that two ends such as shape vary in size, " pad of coating one end in the through hole " is meant the pad of its bigger end.
Wherein, the difference of draw ring and drag hook is that draw ring constitutes the structure of sealing, and drag hook then has the part opening.
Owing to be connected by hook and/or ring between the conjunction of the pull-out test tool of embodiment of the present utility model and the web member, and the junction of hook and/or interannular is mobilizable, therefore when web member is linked to each other with pull-out test equipment (when perhaps web member being linked to each other with conjunction), the junction of hook and/or interannular is movable, so the joint portion that links to each other with coating in the through hole can't be subjected to excessive power, just there is not the impaired possibility of through hole yet, thereby can guarantees pull-out test result's accuracy.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing pull-out test tool by Reflow Soldering method and cross-sectional view after pad combines;
Fig. 2 is that the pull-out test tool of the utility model embodiment is by Reflow Soldering method and side-looking structural representation after pad combines;
Fig. 3 is the side-looking structural representation of joint portion of the pull-out test tool of another embodiment of the utility model;
Fig. 4 is the side-looking structural representation of joint portion of the pull-out test tool of another embodiment of the utility model;
Fig. 5 is the side-looking structural representation of joint portion of the pull-out test tool of another embodiment of the utility model;
Fig. 6 is the side-looking structural representation of joint portion of the pull-out test tool of another embodiment of the utility model;
Fig. 7 is the side-looking structural representation of connecting portion of the pull-out test tool of another embodiment of the utility model;
Fig. 8 is the side-looking structural representation of connecting portion of the pull-out test tool of another embodiment of the utility model;
Fig. 9 is the side-looking structural representation of connecting portion of the pull-out test tool of another embodiment of the utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme of the utility model embodiment is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in the utility model, all other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belong to the scope that the utility model is protected.
The utility model embodiment provides a kind of pull-out test tool, comprising:
Conjunction, it comprise be used for the wiring board through hole in the pad of coating one end or the joint portion that the transition piece on the described pad combines, and first draw ring that links to each other with described joint portion or first drag hook;
Web member, it comprises connecting portion, and described connecting portion one end connects and is used for second draw ring or second drag hook that link to each other with described first draw ring or first drag hook, and the other end is used for linking to each other with pull-out test equipment.
Owing to be connected by hook and/or ring between the conjunction of the pull-out test tool of embodiment of the present utility model and the web member, and the junction of hook and/or interannular is mobilizable, therefore when web member is linked to each other with pull-out test equipment (when perhaps web member being linked to each other with conjunction), the junction of hook and/or interannular is movable, so the joint portion that links to each other with coating in the through hole can't be subjected to excessive power, just there is not the impaired possibility of through hole yet, thereby can guarantees pull-out test result's accuracy.
And, because the connection of hook and/or interannular is mobilizable, so hook on conjunction and the web member and/or ring can interconnect from different perspectives, thereby can avoid external force to influence the pull-out test result, and can be when drawing direction and through-bore axis direction have deviation slightly (for example because the chuck of wiring board or pull-out test equipment is provided with askew) guarantee coating in through hole be subjected to force direction correctly so that test result is accurate.
Simultaneously, with respect to the operation of clamping tool with chuck exactly, with hook and/or encircle interconnective operation and operation that web member is linked to each other with pull-out test equipment obviously more simple, consuming time shorter, the tool of the utility model embodiment can also improve testing efficiency thus, shortens the test duration.
Embodiment
The utility model embodiment provides a kind of pull-out test tool, and to shown in Figure 9, it comprises conjunction 8 and web member 9 as Fig. 2.
Wherein, conjunction 8 preferably is made of the metal or alloy material, more preferably is made of stainless steel, and is not yielding and wear-resistant to guarantee it.Conjunction 8 comprise be used for through hole in the pad 2 of coating one end or the joint portion 81 that the transition piece 5 on the pad 2 combines, and first draw ring 82 that links to each other with joint portion 81 or first drag hook 83.
To shown in Figure 6, first draw ring 82 or first drag hook 83 can be multiple shape, for example are D shape ring, Q-RING, shackle link etc. as Fig. 2.But preferably, as Fig. 3, shown in Figure 5, have a circular arc shaped portion in first draw ring 82 or first drag hook 83, and 81 farthest points are the summit of this circular arc shaped portion (outer normal at place, the summit of this circular arc shaped portion straight up when testing in other words) apart from the joint portion on this first draw ring 82 or first drag hook 83; Certainly, the length of this circular arc shaped portion can change, can be as shown in Figure 3, first draw ring, 82 integral body are that (promptly first draw ring 82 is circular arc shaped portion to annulus all over, a bit all can regard the summit of circular arc shaped portion arbitrarily as on first draw ring 82 this moment), also can be as shown in Figure 5, having only the first half in first drag hook 83 is circular arc shaped portion.First draw ring 82 of this form or first drag hook 83 are with after second draw ring 92 or second drag hook 93 link to each other, can allow second draw ring 92 or second drag hook 93 in first draw ring 82 or first drag hook 83, to be free to slide, thereby can realize from different perspectives connecting, guarantee that test result is accurate; Simultaneously, after applying pulling force, it can guarantee that again second draw ring 92 or second drag hook 93 move to the place, summit of this circular arc shaped portion, guarantee that pulling force vertically conducts.
Web member 9 comprises connecting portion 91, and connecting portion 91 1 ends are connected with second draw ring 92 or second drag hook 93, and connecting portion 91 other ends then are used for linking to each other with pull-out test equipment.
Wherein, connecting portion 91 can be rigidity shapes such as bar, rod; But preferably, connecting portion 91 is the flexible portion 9 that flexibly connects, for example forms such as chain, line, band; When connecting portion 91 was chain, it can be made by the metal material of hard such as steel, iron, and when connecting portion 91 was line, band etc., it can be had the flexible material manufacturing of higher-strength by nylon etc.Flexibly connect portion 91 by employing, can avoid conjunction 8 stressed before pull-out test begins better, thereby prevent that better through hole from damaging; Simultaneously, when the drawing direction of pull-out test departs from through hole when axial (for example the chuck 7 of wiring board or pull-out test equipment is provided with askew) slightly, flexibly connect portion 91 and can deform guaranteeing carrying out smoothly of test, and reduce the test result error; In addition, flexibly connecting portion 91 also can make web member 9 easier with the operation that other parts (as conjunction 8 or pull-out test equipment) are connected.
Obviously, connecting portion 91 can adopt different ways with being connected of pull-out test equipment room.For example, connecting portion 91 can directly be clamped by the chuck 7 of pull-out test equipment, also can link to each other with pull-out test equipment by other syndeton (as hook, ring etc.).
The connection that connecting portion 91 and second draw ring 92 or second drag hook are 93 also can be adopted many different forms.For example, when connecting portion 91 was line, band etc., it can directly tie up on second draw ring 92 or second drag hook 93; When connecting portion 91 was chain, it can link to each other with second draw ring 92 or second drag hook 93 by the ring of link ends; And when connecting portion 91 was rigidity, it can be fixedlyed connected with second draw ring 92 or second drag hook 93, also can be connected with second draw ring 92 or second drag hook 93 by other syndeton (as abutment ring) etc.
To shown in Figure 9, second draw ring 92 or second drag hook 93 can be multiple shape as Fig. 7.But preferably, as Fig. 7, shown in Figure 8, also comprise circular arc shaped portion in second draw ring 92 or second drag hook 93, and be the summit of this circular arc shaped portion (outer normal at place, circular arc shaped portion summit straight down when promptly testing) apart from connecting portion 91 point farthest on second draw ring 92 or second drag hook 93.Second draw ring 92 of this form or second drag hook 93 have equally when connecting and allow first draw ring 82 or first drag hook 83 to be free to slide, and guarantee that when test first draw ring 82 perhaps or first drag hook 83 move to the beneficial effect at the place, summit of circular arc shaped portion.
Obviously, by selecting draw ring or drag hook, can make 9 of conjunction 8 and web members produce different types of attachment.For example, conjunction 8 can be connected with second drag hook 93 by first draw ring 82 with 9 of web members, or is connected with second drag hook 93 by first drag hook 83, or is connected with second draw ring 92 by first drag hook 83, or is connected with second draw ring 92 by first draw ring 82.Wherein, when adopting first draw ring 82 and second draw ring, 92 ways of connecting, can be about to first draw ring 82 during fabrication and second draw ring 92 links together, promptly conjunction 8 is non-removable with being connected of 9 of web members; Certainly, also can be provided with in first draw ring 82 and/or second draw ring 92 and the part of draw ring can be opened or closed opening and closing part (opening-closing structure on for example similar key ring), be dismountable thereby make first draw ring 82 and being connected of 92 of second draw rings.
After each pull-out test is finished,, remove glue remaining on the joint portion 81, soldering paste 2 etc. again, can make this pull-out test tool be repeated utilization, with economical with materials as long as coating in joint portion 81 and the through hole is separated.
The above; it only is embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (10)
1. a pull-out test tool is characterized in that, comprising:
Conjunction, it comprise be used for the wiring board through hole in the pad of coating one end or the joint portion that the transition piece on the described pad combines, and first draw ring that links to each other with described joint portion or first drag hook;
Web member, it comprises connecting portion, and described connecting portion one end connects and is used for second draw ring or second drag hook that link to each other with described first draw ring or first drag hook, and the other end is used for linking to each other with pull-out test equipment.
2. pull-out test tool according to claim 1 is characterized in that,
Described conjunction is a sheet.
3. pull-out test tool according to claim 1 is characterized in that described conjunction is made of metal or alloy.
4. pull-out test tool according to claim 1 is characterized in that described conjunction is made of stainless steel.
5. pull-out test tool according to claim 1 is characterized in that, described conjunction is provided for increasing the alligatoring structure of surfaceness at least in the part that is used for combining with described pad or described transition piece.
6. pull-out test tool according to claim 1 is characterized in that,
Described first draw ring or first drag hook are connected the center of described joint portion.
7. pull-out test tool according to claim 1 is characterized in that,
Described first draw ring or first drag hook link to each other with described joint portion by pillar; Or
Described first draw ring or first drag hook and described joint portion form integrative-structure.
8. according to any described pull-out test tool in the claim 1 to 7, it is characterized in that,
Have circular arc shaped portion in described first draw ring or first drag hook, and the described joint portion of distance point farthest is the summit of described circular arc shaped portion on described first draw ring or first drag hook; And/or
Have circular arc shaped portion in described second draw ring or second drag hook, and the described connecting portion of distance point farthest is the summit of described circular arc shaped portion on described second draw ring or second drag hook.
9. according to any described pull-out test tool in the claim 1 to 7, it is characterized in that described connecting portion is the portion of flexibly connecting.
10. pull-out test tool according to claim 9 is characterized in that, the described portion of flexibly connecting is any one in chain, band, the line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206685743U CN201926615U (en) | 2010-12-09 | 2010-12-09 | Drawing test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206685743U CN201926615U (en) | 2010-12-09 | 2010-12-09 | Drawing test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201926615U true CN201926615U (en) | 2011-08-10 |
Family
ID=44430460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206685743U Expired - Lifetime CN201926615U (en) | 2010-12-09 | 2010-12-09 | Drawing test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201926615U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628776A (en) * | 2012-03-20 | 2012-08-08 | 威力盟电子(苏州)有限公司 | Push-pull effort test machine |
| CN103115868A (en) * | 2013-03-07 | 2013-05-22 | 中国空间技术研究院 | Fixing device for testing pulling-out force of device chip |
| CN104181103A (en) * | 2014-08-25 | 2014-12-03 | 桂林电子科技大学 | Drawing test method and device for evaluating binding strength of PCB bonding pad |
| CN104964924A (en) * | 2015-07-14 | 2015-10-07 | 小米科技有限责任公司 | Jig for drawing force detection and drawing force detection system |
| CN105158154A (en) * | 2015-07-30 | 2015-12-16 | 桂林电子科技大学 | Method for testing PCB pad bonding strength |
| CN107462466A (en) * | 2017-08-11 | 2017-12-12 | 合肥卓立雅工程材料科技有限公司 | A kind of film stretching force detecting apparatus |
| CN112338305A (en) * | 2020-10-12 | 2021-02-09 | 深圳市首骋新材料科技有限公司 | Welding process for surface vertical tension test |
| CN113324900A (en) * | 2021-04-21 | 2021-08-31 | 昆山丘钛光电科技有限公司 | Binding force testing tool, testing device and testing method |
| CN113740156A (en) * | 2021-08-23 | 2021-12-03 | 科大讯飞股份有限公司 | Drawing test fixture and method |
| CN114577715A (en) * | 2020-11-30 | 2022-06-03 | 昊佰电子科技（上海）有限公司 | Vertical stripping testing device for small-sized perforated die-cut piece and manufacturing method and application thereof |
-
2010
- 2010-12-09 CN CN2010206685743U patent/CN201926615U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102628776A (en) * | 2012-03-20 | 2012-08-08 | 威力盟电子(苏州)有限公司 | Push-pull effort test machine |
| CN103115868A (en) * | 2013-03-07 | 2013-05-22 | 中国空间技术研究院 | Fixing device for testing pulling-out force of device chip |
| CN103115868B (en) * | 2013-03-07 | 2015-01-21 | 中国空间技术研究院 | Fixing device for testing pulling-out force of device chip |
| CN104181103A (en) * | 2014-08-25 | 2014-12-03 | 桂林电子科技大学 | Drawing test method and device for evaluating binding strength of PCB bonding pad |
| CN104964924A (en) * | 2015-07-14 | 2015-10-07 | 小米科技有限责任公司 | Jig for drawing force detection and drawing force detection system |
| CN105158154A (en) * | 2015-07-30 | 2015-12-16 | 桂林电子科技大学 | Method for testing PCB pad bonding strength |
| CN107462466A (en) * | 2017-08-11 | 2017-12-12 | 合肥卓立雅工程材料科技有限公司 | A kind of film stretching force detecting apparatus |
| CN112338305A (en) * | 2020-10-12 | 2021-02-09 | 深圳市首骋新材料科技有限公司 | Welding process for surface vertical tension test |
| CN114577715A (en) * | 2020-11-30 | 2022-06-03 | 昊佰电子科技（上海）有限公司 | Vertical stripping testing device for small-sized perforated die-cut piece and manufacturing method and application thereof |
| CN113324900A (en) * | 2021-04-21 | 2021-08-31 | 昆山丘钛光电科技有限公司 | Binding force testing tool, testing device and testing method |
| CN113740156A (en) * | 2021-08-23 | 2021-12-03 | 科大讯飞股份有限公司 | Drawing test fixture and method |
| CN113740156B (en) * | 2021-08-23 | 2024-02-13 | 科大讯飞股份有限公司 | Drawing test fixture and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110810 |