CN208172144U - A kind of anti-inserted test device of needle stand and its ICT tester - Google Patents
A kind of anti-inserted test device of needle stand and its ICT tester Download PDFInfo
- Publication number
- CN208172144U CN208172144U CN201820810210.0U CN201820810210U CN208172144U CN 208172144 U CN208172144 U CN 208172144U CN 201820810210 U CN201820810210 U CN 201820810210U CN 208172144 U CN208172144 U CN 208172144U
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- China
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- conduct piece
- needle stand
- test device
- switching mode
- casting die
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Abstract
The utility model discloses a kind of anti-inserted test device of needle stand and its ICT tester, the top bar of needle stand to be tested and gets out of a predicament or an embarrassing situation and has difference in height, and the anti-inserted test device of needle stand includes：Switching mode casting die, inside is equipped with the first conduct piece adjustable in pitch and the second conduct piece, switching mode casting die has the off-state for being pressed on the getting out of a predicament or an embarrassing situation of needle stand, the separation of the first conduct piece and the second conduct piece, and is pressed on the on state of the top bar of needle stand, the first conduct piece and the conducting of the second conduct piece；Test circuit, the resistance value between first end and second end when for testing switching mode casting die in the conductive state and off-state.Needle stand is monitored automatically by the anti-inserted test device of needle stand, solves the test equipment for lacking whether needle stand is anti-inserted on test circuit board in the prior art, operator is needed manually to be checked one by one to circuit board, the problem that detection efficiency is low, investigation accuracy rate difference and investigation are at high cost.
Description
Technical field
The utility model is related to test fixture technical field, and in particular to a kind of anti-inserted test device of needle stand and its ICT test
Instrument.
Background technique
With the continuous development of electronic technology, electronic product is just being enriched constantly our life, and circuit board is as it
In most important part, can the electronic component on circuit board, which correctly be installed, directly affects electronic equipment quality.Needle stand conduct
Common electric elements on circuit board, when being plugged into circuit board surface, the easy step direction by needle stand is anti-inserted causes contact pin position
It sets and shifts, if there is anti-inserted problem, will affect the consistency of similar printed board to make insert row and needle stand that can not lead to
Automation equipment grafting is crossed, or even can also change the arrangement mode of electronic element on circuit board causes what circuit board was not available to ask
Topic.
The test equipment that whether needle stand is anti-inserted on test circuit board lacked in the prior art, if necessary to whether detect needle stand
Correct installation manually can only check one by one circuit board by operator, the extremely low life for seriously affecting circuit board of detection efficiency
Efficiency is produced, and the mode manually checked not can guarantee investigation accuracy rate yet and still there is the anti-inserted unqualified production of a large amount of needle stands
Product.
Utility model content
Therefore, the utility model technical problem to be solved is to lack the whether anti-inserted needle stand of detection needle stand in the prior art
Anti-inserted test device, can only insert by artificial investigation needle stand leads to that its Detection accuracy is low, detection efficiency is poor and testing cost is high
The problem of.For this purpose, the utility model provides a kind of anti-inserted test device of needle stand, the top bar of needle stand to be tested and get out of a predicament or an embarrassing situation with one
Fixed difference in height, top bar, which is higher than, gets out of a predicament or an embarrassing situation, and the contact pin for being connected with insert row, which is located at, gets out of a predicament or an embarrassing situation.
The anti-inserted test device of needle stand includes
Switching mode casting die, inside are equipped with the first conduct piece adjustable in pitch and the second conduct piece, the switching mode casting die tool
There is the off-state for being pressed on the getting out of a predicament or an embarrassing situation of the needle stand, the separation of first conduct piece and the second conduct piece, and is pressed on institute
State the top bar of needle stand, the on state of first conduct piece and the conducting of the second conduct piece；
Circuit is tested, first end is electrically connected first conduct piece, and second end is electrically connected second conduct piece, for surveying
It tries between the first end and the second end when switching mode casting die is in the on state and the off-state
Resistance value.
The switching mode casting die further includes separating the two to first conduct piece and/or the application of the second conduct piece
The bias piece of biasing force, the switching mode casting die compress the top bar by overcoming the biasing force to make first conduct piece
It is connected with second conduct piece.
The bias piece be spring, the both ends of the spring respectively with first conduct piece and the second conduct piece phase
Even.
Resistance value of switching mode casting die when being in the on state between the first end and the second end becomes
It is bordering on 0.
First conduct piece and second conduct piece are metallic conductor.
The switching mode casting die further includes the protective case being set on the outside of first conduct piece and second conduct piece.
The switching mode casting die has exposed setting and connect respectively with first conduct piece and second conduct piece
The first electric connecting terminal and the second electric connecting terminal, the first end is connected on first electric connecting terminal, and the second end connects
It connects on second electric connecting terminal.
The test circuit includes：Ohmmeter, the ohmmeter are equipped with and both the first end and the second end
The positive wire of one, and the cathode conductor another with both the first end and the second end.
A kind of ICT tester, including the anti-inserted test device of above-mentioned needle stand, the anti-inserted test device of needle stand are integrated in described
In the sky plate of ICT tester.
The test method of the anti-inserted test device of the needle stand, includes the following steps：
Make switching mode casting die move down pre-determined distance to be pressed on needle stand to be detected；
If the resistance value of switching mode casting die that test circuit measures be level off to zero definite value, needle stand is anti-inserted；
If the resistance value for the switching mode casting die that test circuit measures is infinity, needle stand installation is correct.
The technical solution of the utility model, has the following advantages that：
1. the anti-inserted test device of needle stand that the utility model provides can be surveyed by the switching mode casting die matched with test circuit
Whether measurer has the needle stand of up/down steps difference in height anti-inserted, inside switching mode casting die be equipped with the first conduct piece adjustable in pitch and
Second conduct piece, when the fixed height that the position movement of getting out of a predicament or an embarrassing situation of switching mode casting die towards needle stand preset on circuit board is set
In the process, can be pressed in needle stand top bar if the anti-inserted switching mode casting die of needle stand, top bar can stop switching mode casting die after
Continuous to move down that superposed first conduct piece is made to be connected with the second conduct piece, testing the resistance value that circuit measures at this time is
Level off between first end and second end on first conduct piece and the second conduct piece zero fixed value resistance value；If needle stand is installed
Correct switching mode casting die then will be installed preset plan and be pressed on needle stand gets out of a predicament or an embarrassing situation, the preset falling head foot of switching mode casting die
Enough first conduct pieces and the second conduct piece will not contact close to each other be connected, at this time because the first conduct piece and the second conduct piece it
Between there is gap, air resistance when not being ionized is very big so the resistance value that test circuit measures is infinity.Pass through
Whether the above-mentioned anti-inserted test device of needle stand can be installed correctly with the needle stand on automatic detection circuit board, by observing change in resistance
Can determine whether needle stand is anti-inserted also has the advantages that detection efficiency is fast, and avoiding in the prior art can only be by artificial investigation needle
Seat, which is inserted, leads to the problem that its Detection accuracy is low, detection efficiency is poor and testing cost is high.
2. the anti-inserted test device of needle stand that the utility model provides, by being arranged bias piece, bias piece is to the first conduct piece and the
Two conduct pieces apply the biasing force for being separated from each other them, to guarantee that the first conduct piece and the second conduct piece will not be because of accidents
Factor is connected to make to test the result generation mistake that circuit measures, the driving switch type when the second conduct piece is connected to top bar
Casting die towards predetermined needle stand get out of a predicament or an embarrassing situation mobile the first conduct piece of drive force in position overcome bias piece bring biasing force with
Second conduct piece be connected to make to test circuit measure the first conduct piece and second conduct piece the two level off to zero definite value electricity
Resistance value.
3. the anti-inserted test device of needle stand that the utility model provides has buying convenient, produces dimension using spring as bias piece
Protect advantage at low cost.
4. the anti-inserted test device of needle stand that the utility model provides is protected by being arranged on the outside of the first conduct piece and the second conduct piece
Sheath influences test circuit and measures the accurate of resistance for preventing other components from touching the first conduct piece and/or the second conduct piece
Property, to influence the measurement result of the anti-inserted test device of needle stand.
5. the anti-inserted test device of needle stand that the utility model provides, by setting metal for the first conduct piece and the second conduct piece
Conductor tests the resistance value that measures of circuit and levels off to 0, to avoid because of test electricity when keeping switching mode casting die in the conductive state
The problem of road resistance range is arranged, the first conduct piece and the second conduct piece resistance measured in small resistance range are greater than ohmmeter
Maximum value to cause resistance be infinitely great illusion, make the anti-inserted test device of needle stand that can not accurately judge whether needle stand anti-inserted.
6. the anti-inserted test device of needle stand that the utility model provides, test circuit includes ohmmeter, can be simple by ohmmeter
Resistance value between the first conduct piece of effective measurement and the first end and second end of the second conduct piece.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the utility model specific embodiment or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of needle stand anti-inserted test device when the needle stand that provides of the utility model is anti-inserted；
Fig. 2 is the structural schematic diagram of needle stand anti-inserted test device when the needle stand that the utility model provides installs correct；
Fig. 3 is the structural schematic diagram for the switching mode casting die that the utility model provides；
Description of symbols：
1- needle stand；2- top bar；3- gets out of a predicament or an embarrassing situation；4- switching mode casting die；The first conduct piece of 5-；The second conduct piece of 6-；7- is surveyed
Try circuit；8- bias piece；9- protective case；The first electric connecting terminal of 10-；The second electric connecting terminal of 11-；12- ohmmeter；13- anode is led
Line；14- cathode conductor；15- outer jointing jacket.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the utility model, it is clear that described implementation
Example is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, ordinary skill
Personnel's every other embodiment obtained without making creative work belongs to the range of the utility model protection.
In the description of the utility model, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for describe the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as the limitation to the utility model.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the utility model, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in novel.
As long as in addition, the non-structure each other of technical characteristic involved in the utility model different embodiments disclosed below
It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of ICT tester, needle as depicted in figs. 1 and 2 is provided in the sky plate of ICT tester
Whether the anti-inserted test device of seat, the needle stand that the anti-inserted test device of needle stand is used to measure on the circuit board being placed on support plate are inserted
Anti- problem has higher-height top bar 2 and a lower height of gets out of a predicament or an embarrassing situation applied to the needle stand 1 on circuit board is most of
3, contact pin for being connected with insert row, which is located at, gets out of a predicament or an embarrassing situation 3.
As shown in Figure 1 to Figure 3, the anti-inserted test device of the needle stand includes：
It is arranged in the sky plate of the ICT tester and is driven towards the mobile switching mode casting die 4 of support plate by sky plate, it is described to open
Pass type casting die 4 include metal material resistance level off to zero the first conduct piece 5 and the second conduct piece 6, cylindrical structure it is described
First conduct piece 5 and second conduct piece 6 apply the biasing force that they are separated to the two by spring to make first to lead
Gap between electric part 5 and the second conduct piece 6 is adjustable.The switching mode casting die 4 have be pressed on the needle stand 1 get out of a predicament or an embarrassing situation 3,
The off-state that first conduct piece 5 and second conduct piece 6 separate them by the partial pressure of the spring；With
Second conduct piece 6 is pressed on the top bar 2 of the needle stand 1, and the first conduct piece 5 is continued decline by the driving of sky plate to make first
Conduct piece 5 be connected with the second conduct piece 6 conducting on state；The switching mode casting die 4 have it is exposed setting and respectively with institute
State the first electric connecting terminal 10 and the second electric connecting terminal 11 of the first conduct piece 5 and second conduct piece 6 connection；Wherein, Fig. 3 institute
Show, is equipped with guarantor on the side that first conduct piece 5 of cylindrical structure and described second conduct piece, 6 the two are located remotely from each other
Sheath 9, the spring be nested on the outside of the column and the both ends of spring respectively be nested in first conduct piece 5 and
9 end of protective case on second conduct piece 6 is fixedly linked；
Circuit 7 is tested, including：Ohmmeter 12, ohmmeter 12 are in the conducting for testing the switching mode casting die 4
The resistance value between the second end in first end and the second conduct piece 6 when state and the off-state on the first conduct piece 5,
The ohmmeter 12 is equipped with the positive wire 13 being connected with first end, and the cathode conductor 14 being connected with second end.
During the fixed height set is moved in the position of getting out of a predicament or an embarrassing situation of switching mode casting die towards needle stand preset on circuit board, if
The anti-inserted switching mode casting die of needle stand can be then pressed in needle stand top bar, and top bar can stop switching mode casting die to continue to move down to make
Superposed first conduct piece is connected with the second conduct piece, test at this time the resistance value that measures of circuit be the first conduct piece and
Level off between first end and second end on second conduct piece zero fixed value resistance value；If needle stand installs correct switching mode pressure
Part then will be installed preset plan and be pressed on needle stand gets out of a predicament or an embarrassing situation, enough first conduct pieces of the preset falling head of switching mode casting die
It close to each other will not contact and be connected with the second conduct piece, at this time because having gap between the first conduct piece and the second conduct piece,
Air resistance when not being ionized is very big so the resistance value that test circuit measures is infinity.It is anti-inserted by above-mentioned needle stand
Whether test device can be installed correctly with the needle stand on automatic detection circuit board, can determine whether needle stand by observation change in resistance
Whether it is anti-inserted also have the advantages that detection efficiency is fast, avoiding to insert by artificial investigation needle stand in the prior art lead to its inspection
Survey the problem that accuracy rate is low, detection efficiency is poor and testing cost is high.
The test method of the anti-inserted test device of the needle stand being arranged on ICT tester in the present embodiment is as follows：
Make switching mode casting die 4 move down pre-determined distance to be pressed on needle stand 1 to be detected；
If the resistance value of switching mode casting die 4 that test circuit 7 measures be level off to zero definite value, needle stand is anti-inserted；
If the resistance value for the switching mode casting die 4 that test circuit 7 measures is infinity, needle stand installation is correct.
Embodiment 2
The present embodiment the difference from embodiment 1 is that, as shown in figure 3, being nested with the protective case on second conduct piece 6
9, the side of protective case 9 towards the needle stand 1 is the prong structure for avoiding the contact pin in the top bar 2 of needle stand 1.By second
Protective case 9 on conduct piece 6, which is set as tip, can effectively prevent the anti-inserted test device of needle stand protective case 9 in use
Be in contact the problem of damaging contact pin with contact pin.
Embodiment 3
The present embodiment the difference from embodiment 1 is that, 6 the two phase of first conduct piece 5 and second conduct piece
It mutually is equipped with protective case 9 on separate side, two be separately positioned on first conduct piece 5 and second conduct piece 6
The outer protection for covering first conduct piece 5 and 6 coupling part of the second conduct piece is additionally provided between a protective case 9
Set 15.Outer jointing jacket 15 is used to prevent other components from touching the first conduct piece and the link position of the second conduct piece to influence test
Circuit measures the accuracy of resistance, to influence the measurement result of the anti-inserted test device of needle stand.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (9)
1. a kind of anti-inserted test device of needle stand, which is characterized in that the top bar (2) of needle stand (1) to be tested and (3) tool of getting out of a predicament or an embarrassing situation
There is certain difference in height, the anti-inserted test device of needle stand includes
Switching mode casting die (4), inside are equipped with the first conduct piece (5) adjustable in pitch and the second conduct piece (6), the switching mode pressure
Part (4) have be pressed on the getting out of a predicament or an embarrassing situation (3) of the needle stand (1), first conduct piece (5) and second conduct piece (6) divide
From off-state, and be pressed on top bar (2), first conduct piece (5) and second conduct piece of the needle stand (1)
(6) on state be connected；
It tests circuit (7), first end is electrically connected first conduct piece (5), and second end is electrically connected second conduct piece (6),
For testing the first end and described when the switching mode casting die (4) is in the on state and the off-state
Resistance value between two ends.
2. the anti-inserted test device of needle stand according to claim 1, which is characterized in that the switching mode casting die (4) further includes
Apply the bias piece (8) for the biasing force for separating the two to first conduct piece (5) and/or the second conduct piece (6), it is described
Switching mode casting die compresses the top bar (2) by overcoming the biasing force to lead first conduct piece (5) and described second
Electric part (6) conducting.
3. the anti-inserted test device of needle stand according to claim 2, which is characterized in that the bias piece (8) is spring, described
The both ends of spring are connected with first conduct piece (5) and second conduct piece (6) respectively.
4. the anti-inserted test device of needle stand according to claim 1, which is characterized in that the switching mode casting die (4) is in institute
Resistance value when stating on state between the first end and the second end levels off to 0.
5. the anti-inserted test device of needle stand according to claim 4, which is characterized in that first conduct piece (5) and described
Second conduct piece (6) is metallic conductor.
6. the anti-inserted test device of needle stand according to claim 1, which is characterized in that the switching mode casting die (4) further includes
The protective case (9) being set on the outside of first conduct piece (5) and second conduct piece (6).
7. the anti-inserted test device of needle stand according to claim 1, which is characterized in that the switching mode casting die (4) has outer
Dew setting and the first electric connecting terminal (10) for being connect respectively with first conduct piece (5) and second conduct piece (6) and the
Two electric connecting terminals (11), the first end are connected on first electric connecting terminal (10), and the second end is connected to described
On two electric connecting terminals (11).
8. the anti-inserted test device of needle stand according to claim 1, which is characterized in that the test circuit (7) includes：Resistance
Table (12), the ohmmeter (12) are equipped with the positive wire being connected with both the first end and the second end one
(13), and with another cathode conductor (14) being connected of both the first end and the second end.
9. a kind of ICT tester, it is characterised in that：Including the anti-inserted test device of needle stand of any of claims 1-8,
The anti-inserted test device of needle stand is integrated on sky plate and/or the floor of the ICT tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810210.0U CN208172144U (en) | 2018-05-28 | 2018-05-28 | A kind of anti-inserted test device of needle stand and its ICT tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820810210.0U CN208172144U (en) | 2018-05-28 | 2018-05-28 | A kind of anti-inserted test device of needle stand and its ICT tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208172144U true CN208172144U (en) | 2018-11-30 |
Family
ID=64365194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820810210.0U Active CN208172144U (en) | 2018-05-28 | 2018-05-28 | A kind of anti-inserted test device of needle stand and its ICT tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208172144U (en) |
-
2018
- 2018-05-28 CN CN201820810210.0U patent/CN208172144U/en active Active
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