CN102707182B - A kind of pcb board measurement jig - Google Patents
A kind of pcb board measurement jig Download PDFInfo
- Publication number
- CN102707182B CN102707182B CN201110101561.7A CN201110101561A CN102707182B CN 102707182 B CN102707182 B CN 102707182B CN 201110101561 A CN201110101561 A CN 201110101561A CN 102707182 B CN102707182 B CN 102707182B
- Authority
- CN
- China
- Prior art keywords
- dials
- probe
- pcb board
- needle plate
- base
- 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.)
- Active
Links
Abstract
The present invention relates to a kind of pcb board measurement jig, it comprises tool and lower tool, and lower tool comprises dials and base; Dials comprises needle plate, probe, and probe is slidably in tilting via hole on needle plate; Base is provided with ox horn joint, the some sleeves corresponding with probe, and ox horn joint is electrically connected on sleeve; Needle plate is set to 4-6 Rotating fields, and each interlamellar spacing increases to bottom gradually from top, and needle plate comprises top board, base plate and some intermediate plates between the two, and the thickness of top board and base plate is greater than the thickness of intermediate plate.Dials of the present invention better makes probe not easily damaged to probe rides, is easy to manufacture and install, be easy to change probe; When ensureing stability and the reliability of test, make use of the serviceable life of dials fully, reducing production cost; Be provided with the structure can suppressing mark, make operator be easy to differentiate the pcb board do not tested and tested; Can be shown test results on tool by dual-colored LED lamp, improve testing efficiency.
Description
Technical field
The present invention relates to a kind of electric performance test equipment of semiconductor devices, especially relate to a kind of pcb board measurement jig.
Background technology
When the production of printed circuit board (PCB), need to test its electrical property by tool, to be a kind of with pcb board be pcb board measurement jig that model designs, for a kind of unit clamp of electrical property on off test, have one side tool, two-sided tool point, along with technical progress and a large amount of production applications of electron trade, measurement jig is also in constantly technological improvement, such as change probe to be easy to be more convenient for, spring and be convenient to probe, spring is reused, just inventors herein propose " electronics and the special combined tool of test industry " (publication number CN 1529181A) by name, it comprises base, header connector, needle plate, base plate, some probe assemblies and wire, needle plate is combined by multilayer board, be provided with interval between the plates, base plate forms by multilayer board is stacked, dials and base plate are equipped with some perforation, probe assembly is placed in the perforation of needle plate and base plate, the head of its probe is exposed to the surface of needle plate, needle plate and base plate fixedly become overall dials, base comprises bedplate and support, bedplate is provided with the perforation corresponding with base plate, be connected for removable between dials with bedplate, one end of wire is connected with the binding post of header connector, the other end is positioned in the perforation of bedplate, and with the mode conducting by contacting of the bottom of probe assembly.This invention reaches easy to maintenance, be easy to change probe, spring and be convenient to probe, the reusable effect of spring, but still come with some shortcomings: be first the progress along with technology, stitch on pcb board is more and more closeer, therefore probe also more and more carefully, more and more longer, pcb board to be tested press down contact with end of probe time, probe is easily stressed causes damage; Next is the mode of periodic replacement probe, spring, can because the PCB batch that test of different phase is different, and some still have also can be abandoned compared with the probe of long life, spring, forms a kind of waste, is unfavorable for the reduction of production cost; Be again in actual production, pcb board mostly is batch micro operations, therefore be also that batch carries out when testing, because pcb board profile is consistent, when making test operation, operator is often difficult to differentiate the pcb board tested He do not test, and brings puzzlement to actual production, easily cause repeated test phenomenon and cause production efficiency to decline, especially seriously the product do not tested being formed quality accident as test products; In addition, in actual production, pcb board mostly is batch micro operations, therefore open-short circuit is also carry out in batches, and the mode of read test result from outside open-short circuit equipment, testing efficiency is lower.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of dials and probe rides is better made to probe is not easily damaged, the pcb board measurement jig of long service life;
Another object of the present invention be to provide a kind of record the actual test of dials number of times and make full use of the pcb board measurement jig in dials serviceable life;
Still a further object of the present invention is to provide a kind ofly can make discernible mark thus prevent the pcb board measurement jig of pcb board test leakage in test process on tested pcb board;
The result that still a further object of the present invention is to provide a kind of open-short circuit is directly presented at the pcb board measurement jig on tool.
Above-mentioned technical matters of the present invention is mainly solved by following technical proposals: a kind of pcb board measurement jig, and comprise tool and lower tool, lower tool comprises dials and base; Dials comprises needle plate, probe, and probe is slidably in tilting via hole on needle plate; Base is provided with ox horn joint, the some sleeves corresponding with probe, and ox horn joint is electrically connected on sleeve; It is characterized in that: described needle plate is set to 4-6 Rotating fields, each interlamellar spacing increases to bottom gradually from top; Described needle plate comprises top board, base plate and some intermediate plates between the two, and the thickness of top board and base plate is greater than the thickness of intermediate plate.Sleeve is provided with the spring applying spring force to probe radial direction, and this spring can be located in sleeve or outside sleeve; Because probe is tilting state, when upper tool presses down, probe is subject to from pcb board pressure, this pressure is the acting force of vertical direction, probe needs this input pressure to be decomposed into axial thrust load and radial component, and axial thrust load passes to outside sleeve or spring, and radial component needs needle plate to bear; Because probe diameter is small, and there is the easy stress deformation of certain elasticity, therefore in actual use, radial component concentrates on end of probe region more, so pcb board to be tested press down contact with end of probe time, less with the spacing of needle and plate of probes touch, the support being then supplied to end of probe is better, that is the radial component of Input Forces is passed to needle plate in end of probe region by probe as much as possible, avoid probe needles be out of shape and impaired in moving axially, therefore this structure dials is better made probe rides probe is not easily damaged, long service life.Needle plate is set to 4-6 Rotating fields, for probe provides the radial support at multiple position, when making probe tails remain greater density, its head can be set to less density, also probe diameter can be made less, and under this structure, probe minimum diameter can reach 0.12MM, makes measuring accuracy high; Certain Multilayer Structure, decreases the area that needle plate directly contacts with probe, thus reduces relative friction forces.Sleeve, probe are placed on base and dials, facilitate the wiring of sleeve and ox horn joint, are convenient to manufacture and assembling; In addition, only probe is located on the needle plate of dials, and more for convenience, assembly process process is good in the replacing of probe; During use, be placed in by dials on base, each probe slips in corresponding sleeve, and forms electrical contact, simple to operation.End of probe and afterbody need stressed respectively at external contact, and the thickness of described top board and base plate is greater than the thickness of intermediate plate, this structure, make probe end to end the stressed input end of two better supported.
As preferably, described dials is provided with touching switch, and the trigger end of touching switch protrudes from the upper surface of dials; This touching switch is electrically connected with counter.Each test pcb board, upper tool presses down pcb board, and because the trigger end touching switch protrudes from the upper surface of dials, therefore pcb board triggers touching switch, forms a test count, and is presented on counter; By the statistics of counter, operator can determine total testing time of dials, and whether the dials determined according to total testing time reaches the serviceable life of expection or design, reaches, changes dials; This mode, can control the serviceable life of dials effectively, when ensureing stability and the reliability of test, make use of dials fully, reducing production cost.
Observe count results for the ease of operator, as preferably, described counter is located between dials and base.Counter is arranged between dials and base, makes it to form a kind of one-piece construction with lower tool, does not take space outerpace, and easy to use and deposit.
As preferably, described dials is embedded with the leakproof chaining pin head can cheating shape identifiable marker in the compacting of detected pcb board surface.During test, be placed in by pcb board on the dials of lower tool, upper tool presses down, and while pcb board is electrically connected with dials, also make leakproof chaining pin head extrude the marking of hole shape at pcb board, this marking is just formed can by the mark of artificial cognition; By this mark, tester can distinguish the pcb board tested He do not tested.Due to the process of compacting mark, synchronously complete with test process, therefore do not affect production efficiency.
As preferably, described leakproof chaining pin head is the column that hard material makes, head is tapered.Column structure is convenient to be mounted in dials; Conical nose and pcb board surface contact, and be easy to suppress mark under stress.
For improving security, when preventing from suppressing mark, destroy the conductive structure on pcb board, as preferably, described leakproof chaining pin head be located at dials corresponds to the detected non-wiring region of pcb board region in.The non-wiring region of pcb board, does not namely apply the region of copper.
Hole shape mark needs enough large, just the identification of convenient operation person naked eyes; But cheat larger, then the strength of suppressing needs corresponding increasing, the strength of compacting is increased to a certain degree, pcb board will be made to produce larger distortion and make that contiguous to cover copper impaired; As preferably, the head of leakproof chaining pin head protrudes from dials upper surface 1.1-2.2mm.This projective structure, to be easy on pcb board compacting hole shape mark, and the hole shape mark suppressed, has enough large area to facilitate artificial cognition, and meanwhile, during compacting, strength can not be excessive and damage pcb board.
As preferably, described dials is provided with LED, and this LED is electrically connected on the test result output circuit of outside open-short circuit equipment.LED has the advantage that brightness is high, energy consumption is little, directly can access the test result output circuit of conventional open-short circuit equipment, without the need to significantly transforming open-short circuit equipment.The open-short circuit of pcb board, only have by with not by two kinds of test results, therefore, select the LED of two class colors just can represent this two kinds of test results; This two classes LED is arranged on dials, result directly can be shown to operator on tool, for operator's operation, and again after outside open-short circuit equipment read test result, then tool need not be operated; Obviously, these LED also can select same color, in order to display wherein a kind of test result.Therefore, the mode of LED display open-short circuit result is set, can testing efficiency be improved; For in enormous quantities manufacture, the lifting of this efficiency, significantly can reduce production cost.
For the ease of installing, as preferably, the lamp body of described LED is embedded in dials, and the head of lamp is lower than dials upper surface.This structure, space availability ratio is higher, and LED is not external, and its safety better, does not subject to damage of colliding with.
As preferably, described needle plate is glass fibre material, arranges copper web member between intermediate plate and between intermediate plate and base plate.Combine closely by copper piece between layers, make dials more firm, test more stable.
Comparatively reliably contact with the sleeve on base with afterbody for the ease of end of probe, as preferably, described end of probe has several different-diameter size specification, and protrudes from top board surface 0.3-0.6mm, and probe tails stretches out in base plate.
Therefore, the present invention have rational in infrastructure, be easy to the features such as making, especially there is following beneficial effect:
1, dials is to probe rides is better, probe is not easily damaged, long service life; Manufacturability is well easy to manufacture and install, be easy to change probe;
2, by counting assembly, when ensureing stability and the reliability of test, make use of the serviceable life of dials fully, reducing production cost;
3, arrange the structure can suppressing mark, on test board, compacting marks and does not affect production efficiency, makes operator be easy to differentiate the pcb board do not tested and tested;
4, can be shown test results on tool by dual-colored LED lamp, improve testing efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is a kind of structural representation of a kind of pcb board of the present invention measurement jig;
Accompanying drawing 2 is the III place enlarged drawings in accompanying drawing 1;
Accompanying drawing 3 is the IV place enlarged drawings in accompanying drawing 1;
Accompanying drawing 4 be a kind of pcb board of the present invention measurement jig a kind of structural representation;
Accompanying drawing 5 is II place enlarged drawings of accompanying drawing 4;
Accompanying drawing 6 be a kind of pcb board of the present invention measurement jig a kind of structural representation;
Accompanying drawing 7 is I place enlarged drawings of accompanying drawing 6;
Accompanying drawing 8 is a kind of structural representations of dials;
Accompanying drawing 9 is a kind of structural representations of probe.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: a kind of pcb board measurement jig of the present invention, as shown in accompanying drawing 1, accompanying drawing 4, accompanying drawing 7, accompanying drawing 8, it comprises tool 1 and lower tool, and lower tool comprises dials 2 and base 3; Dials 2 comprises needle plate 10, probe 30, and probe 30 is slidably in tilting via hole on needle plate 10; Needle plate 10 is set to 4-6 Rotating fields, and each interlamellar spacing increases to bottom gradually from top.
As shown in accompanying drawing 8, accompanying drawing 9, needle plate 10 comprises top board 101, base plate 102 and some intermediate plates 103 between the two; The thickness of top board 101 and base plate 102 is greater than the thickness of intermediate plate 103.Needle plate 10 is glass fibre material, arranges copper web member between intermediate plate 103 and between intermediate plate 103 and base plate 102.The height that probe 30 head protrudes from top board 101 is 0.3-0.6mm, and bottom stretches out in base plate 102.
As shown in Figure 4, base 3 is provided with ox horn joint 6, is also provided with the some sleeves 7 corresponding with probe 3, as shown in Figure 9; Ox horn joint 6 is electrically connected on sleeve 7, and external device (ED) can be electrically connected on ox horn joint 6; The contact jaw that each sleeve 7 contacts with probe 30 is identical; The diameter of the head of each probe 30 has several different size specification.
As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, dials 2 is provided with touching switch 24, and the trigger end of touching switch 24 protrudes from the upper surface of dials 2; This touching switch 24 is electrically connected with counter 25.Counter 25 is located between dials 2 and base 3.As shown in Figure 3, counter 25 can be located in lower tool or outside, preferably selects to be provided between dials 2 and base 3.As shown in Figure 2, touching switch 24 can be located at away from counter 25 side, and its trigger end protrudes from the upper surface of dials 2.When the trigger end of touching switch 24 presses to extreme position, its trigger end top is lower than dials 2 upper surface.During use, be placed into by pcb board to be tested on the dials 2 of lower tool, upper tool 1 presses down, and pcb board to be tested contacts and presses down the trigger end of touching switch 24, makes touching switch 24 be triggered and send control signal, and counter 25 increases thereupon and once counts; So far, test count completes.The quantity of adding up when counter 25 reaches the access times that dials 2 is expected, then change dials 24, or change lower tool.
As shown in accompanying drawing 6, accompanying drawing 7, dials 2 is embedded with can at the leakproof chaining pin head 21 of compacting hole, detected pcb board surface shape identifiable marker.The column that leakproof chaining pin head 21 is hard material making, head is tapered.Leakproof chaining pin head 21 is located on dials 2 corresponding in the region of the detected non-wiring region of pcb board.The head of leakproof chaining pin head 21 protrudes from dials 2 upper surface 1.1-2.2mm.During use, be placed on by pcb board to be detected on dials 2, upper tool 1 presses down, and pcb board to be detected is pressed and reclines with dials 2; Under the effect of downforce, leakproof chaining pin head 21 suppresses pitting on the surface at pcb board to be detected, forms hole shape mark, for artificial cognition.Herein only to arrange the structure of leakproof chaining pin head 21 as an example on lower fixture dial 2; Apparently, for the upper tool 1 with dials 2, leakproof chaining pin head 21 equally also can be located on the dials 2 of tool 1.
Several LED can be set to one group and same color is set, or be set to two groups and often group a kind of color is set.The open-short circuit of pcb board, only have by with not by two kinds of test results, therefore, the LED of two kinds of colors just can represent this two kinds of test results; Obviously, these LED also can all select a kind of color, in order to display wherein a kind of test result, and a kind of situation namely showing by or do not pass through.As shown in accompanying drawing 4, accompanying drawing 5, the LED 22,23 that dials 2 is provided with LED 22,23, the two class color of two class different colours can be electrically connected on the test result output circuit of outside open-short circuit equipment respectively.The lamp body of LED 22,23 can be located at the sidepiece of dials 2 or be located in dials 2, and when the lamp body of LED 22,23 is embedded in dials 2, the head of lamp is lower than place dials 2 surface.LED 22,23 is set to 2-6.During use, the color of LED 22,23 generally can be set to redness and green respectively, and represent open-short circuit do not pass through so that redness etc. is bright, the bright open-short circuit that represents of green light passes through; Red colored lamp, green light are accessed on the test result output circuit of corresponding open-short circuit tester respectively.
The present invention by 4-6 layer and interlamellar spacing progressively amplify from top the end of to needle plate structure, while probe keeps good sliding capability on dials, also obtain supportive preferably, make probe not easily damaged, extend probe serviceable life; When also making probe tails remain greater density, its head can be set to less density, and probe diameter also can be made less, and under this structure, probe minimum diameter can reach 0.12MM, makes measuring accuracy high.In addition, being solved the control problem in probe serviceable life by counting assembly, improve test operation by display lamp device and judge speed and production efficiency, solving leakage test problem by arranging the structure can suppressing mark.
Claims (6)
1. a pcb board measurement jig, comprises tool (1) and lower tool, and lower tool comprises dials (2) and base (30); Dials (2) comprises needle plate (10), probe (30), and probe (30) is slidably in tilting via hole on needle plate (10); Base (3) is provided with ox horn joint (6), the some sleeves (7) corresponding with probe (3), and ox horn joint (6) is electrically connected on sleeve (7); It is characterized in that: described needle plate (10) is set to 4-6 Rotating fields, and each interlamellar spacing increases to bottom gradually from top; Needle plate (10) comprises top board (101), base plate (102) and some intermediate plates (103) between the two, and the thickness of top board (101) and base plate (102) is greater than the thickness of intermediate plate (103); Described needle plate (10) is glass fibre material, arranges copper web member between intermediate plate (103) and between intermediate plate (103) and base plate (102); Described dials (2) is embedded with can at the leakproof chaining pin head (21) of compacting hole, detected pcb board surface shape identifiable marker, described leakproof chaining pin head (21) is the column that hard material makes, head is tapered, is located in the upper region corresponding to the detected non-wiring region of pcb board of dials (2).
2. a kind of pcb board measurement jig according to claim 1, is characterized in that: described dials (2) is provided with touching switch (24), and the trigger end of touching switch (24) protrudes from the upper surface of dials (2); This touching switch (24) is electrically connected with counter (25).
3. a kind of pcb board measurement jig according to claim 2, is characterized in that: described counter (25) is located between dials (2) and base (3).
4. a kind of pcb board measurement jig according to claim 1, is characterized in that: described dials (2) is provided with LED (22,23), and this LED (22,23) is electrically connected on the test result output circuit of outside open-short circuit equipment.
5. a kind of pcb board measurement jig according to claim 4, is characterized in that: the lamp body of described LED (22,23) is embedded in dials (2), and the head of lamp is lower than dials (2) upper surface.
6. a kind of pcb board measurement jig according to claim 1 or 2 or 3 or 4 or 5, is characterized in that: described probe (30) head protrudes from top board (101) surperficial 0.3-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110101561.7A CN102707182B (en) | 2011-04-22 | 2011-04-22 | A kind of pcb board measurement jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110101561.7A CN102707182B (en) | 2011-04-22 | 2011-04-22 | A kind of pcb board measurement jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102707182A CN102707182A (en) | 2012-10-03 |
| CN102707182B true CN102707182B (en) | 2015-08-12 |
Family
ID=46900114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110101561.7A Active CN102707182B (en) | 2011-04-22 | 2011-04-22 | A kind of pcb board measurement jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102707182B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103048576A (en) * | 2013-01-24 | 2013-04-17 | 昆山尼赛拉电子器材有限公司 | Terminal detection fixture |
| CN104656002A (en) * | 2013-11-22 | 2015-05-27 | 深圳麦逊电子有限公司 | PCB testing result unit display system and method thereof |
| CN104198773A (en) * | 2014-08-29 | 2014-12-10 | 苏州市吴中区胥口广博模具加工厂 | Second rotating shaft group of three-axis linked large circuit board testing fixture |
| CN104166023A (en) * | 2014-08-29 | 2014-11-26 | 苏州市吴中区胥口广博模具加工厂 | Tri-axial linkage type large circuit board test fixture |
| CN104777417A (en) * | 2015-05-05 | 2015-07-15 | 常州信息职业技术学院 | Modular PCB testing jig |
| CN105182010A (en) * | 2015-05-26 | 2015-12-23 | 谈宁 | Electrical property gravity probe for materials and devices |
| CN105067995A (en) * | 2015-07-24 | 2015-11-18 | 浪潮电子信息产业股份有限公司 | Method of checking circuit board dial switch correctness |
| CN105424984A (en) * | 2015-10-30 | 2016-03-23 | 大族激光科技产业集团股份有限公司 | General short needle and micro needle clamp |
| CN105699879B (en) * | 2016-03-08 | 2018-08-14 | 安徽四创电子股份有限公司 | A kind of frequency PCB board test connection slide glass |
| CN106093751A (en) * | 2016-06-20 | 2016-11-09 | 珠海格力电器股份有限公司 | The probe access times detection apparatus and method of circuit board testing instrument |
| CN108828275A (en) * | 2018-06-28 | 2018-11-16 | 苏州通富超威半导体有限公司 | Chip test system |
| CN109387674B (en) * | 2018-10-17 | 2019-12-24 | 英特尔产品（成都）有限公司 | Maintenance tool |
| CN110426536A (en) * | 2019-07-29 | 2019-11-08 | 重庆伟鼎电子科技有限公司 | PCB conductive fabric measurement circuit plate |
| CN112548433B (en) * | 2020-10-23 | 2023-02-14 | 武汉联特科技股份有限公司 | Welding device, clamp and method for double-layer PCB and welding clamp for PCB and connecting pin |
| CN112904181A (en) * | 2021-01-23 | 2021-06-04 | 深圳市祥顺通电子有限公司 | PCB detection tool and device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5744948A (en) * | 1995-08-15 | 1998-04-28 | Everett Charles Technologies, Inc. | Printed circuit board handling device |
| US6127835A (en) * | 1998-08-12 | 2000-10-03 | Aql Manufacturing Services, Inc. | Apparatus and method for assembling test fixtures |
| CN2371564Y (en) * | 1999-04-19 | 2000-03-29 | 王仙萍 | Testing device set for electronic substrate |
| CN1110706C (en) * | 1999-09-23 | 2003-06-04 | 陈东汉 | Combined tester probe |
| CN100343684C (en) * | 2003-09-30 | 2007-10-17 | 王云阶 | Composite tool for electronic and testing industry |
| CN2742447Y (en) * | 2004-10-22 | 2005-11-23 | 自然兴电通科技股份有限公司 | Printed circuit board test tool with telescopic regulating mechanism |
| CN201589851U (en) * | 2009-09-10 | 2010-09-22 | 富葵精密组件(深圳)有限公司 | Circuit board detecting device |
| CN202075364U (en) * | 2011-04-22 | 2011-12-14 | 苏州市科林源电子有限公司 | High-reliability PCB (printed circuit board) test fixture |
-
2011
- 2011-04-22 CN CN201110101561.7A patent/CN102707182B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102707182A (en) | 2012-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102707182B (en) | A kind of pcb board measurement jig | |
| CN203786253U (en) | Electronic transformer voltage withstand testing jig | |
| CN104777417A (en) | Modular PCB testing jig | |
| CN202075364U (en) | High-reliability PCB (printed circuit board) test fixture | |
| CN204044247U (en) | A kind of flex circuit application resistance tester | |
| CN104374955A (en) | Bbt jig for fpcb inspection | |
| CN203490340U (en) | PCBA (printed circuit board assembly) test bench | |
| CN106019127B (en) | Semi-finished product testing touch screen machine based on magnetic switch | |
| CN204855733U (en) | Needle bed testing arrangement | |
| CN204556786U (en) | A kind of modular pcb board measurement jig | |
| CN201673217U (en) | Keyboard testing device | |
| CN102928671B (en) | Testing method of printed wiring board conductive ink resistance value | |
| CN102981095A (en) | Automatic terminal short circuit detection jig | |
| CN202119805U (en) | Composite cylinder jig for printed circuit board (PCB) testing | |
| CN206387822U (en) | Press formula fixture on-line testing two-pass test structure | |
| CN207051432U (en) | A kind of general automatically dotting mark tool | |
| CN2591635Y (en) | Testing mould for printed-circuit board tester | |
| CN202075387U (en) | Combined tool for PCB board test | |
| CN102707098A (en) | Anti-missing-test composite fixture for testing of printed circuit board (PCB) | |
| CN202075312U (en) | Leakage testing prevented composite jig for testing PCBs (Printed Circuit Boards) | |
| CN202075313U (en) | Composite fixture dial | |
| CN201130233Y (en) | Improved all-purpose test mold for printed circuit board | |
| CN105424984A (en) | General short needle and micro needle clamp | |
| CN217639225U (en) | Floating jig for testing solder ball carrier plate | |
| CN211293152U (en) | Equipment for automatically testing electrical quality of PCB |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |