CN206311287U - A kind of wire harness leakage tester - Google Patents
A kind of wire harness leakage tester Download PDFInfo
- Publication number
- CN206311287U CN206311287U CN201621443592.5U CN201621443592U CN206311287U CN 206311287 U CN206311287 U CN 206311287U CN 201621443592 U CN201621443592 U CN 201621443592U CN 206311287 U CN206311287 U CN 206311287U
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- CN
- China
- Prior art keywords
- wire harness
- tested
- air inlet
- pressure
- leakage tester
- 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 - Fee Related
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Abstract
The utility model is related to a kind of wire harness leakage tester, including pressurize gas storage cylinder, pressure gauge (3) and PLC control system (1), described pressurize gas bomb is connected to the air inlet of the tool (2) for being placed with wire harness element to be tested by loading line, described pressure gauge (3) connects the pressure tap of wire harness element tool (2) to be tested, air inlet/the pressure-releasing electromagnetic valve (4) of 3 position-5 way is additionally provided with described loading line, described PLC control system (1) is also respectively connected with the pressurize gas storage cylinder, pressure gauge (3) and air inlet electromagnetic valve (4).Compared with prior art, different units under test can be set different test parameters by connection good sealing effect of the present utility model, it is possible to while testing multiple product components, save testing time etc..
Description
Technical field
The utility model is related to a kind of wire harness leakage tester, more particularly, to a kind of semi-professional wire harness leak-testing
Device.
Background technology
Some projects are related to the air tightness test of some specific components, general air tightness test in wire harness test
Produce negative pressure in closed tool where making test product using vacuum generator, then with air gauge test pressure value whether
In allowed band.For it is airtight require high in the case of, usually checked using leakage tester.Surveyed using the leakage of specialty
Examination instrument, cost is too high, therefore the component of test is needed for multiple, can only be switched using air inlet electromagnetic valve, singly
Test, and because this method of testing inherently has the processes such as inflation, holding, deflation, therefore a testing time meeting for element
Reach more than 6 seconds, such case considerably increases the loop test time.
Utility model content
The purpose of this utility model is exactly to provide a kind of wire harness for the defect for overcoming above-mentioned prior art to exist to leak
Test device.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of wire harness leakage tester, including pressurize gas storage cylinder, pressure gauge and PLC control system, described pressurize
Gas bomb connects the air inlet of wire harness element tool to be tested by loading line, and described pressure gauge connects wire harness unit to be tested
The pressure tap of part, is additionally provided with air inlet/pressure-releasing electromagnetic valve on described loading line, and described PLC control system also connects respectively
Connect the pressurize gas storage cylinder, pressure gauge and air inlet/pressure-releasing electromagnetic valve.
Preferably, along inflation direction, described loading line is additionally provided with choke valve before air inlet electromagnetic valve.Choke valve can be with
Control the blowing pressure and flow velocity from pressurize gas storage cylinder out, it is to avoid treat test wire harness element or air inlet electromagnetic valve is caused
Large impact is crossed, in order to avoid influence test.
Preferably, described loading line is provided with inlet suction port in the end of connection air inlet, and the inlet suction port includes connecing
Head body, is provided with filling channel in joint body, the back end interface connection loading line of the filling channel, front end interface connection
Wire harness element to be tested, is additionally provided with passage sealing unit in filling channel, and the passage sealing unit meets：Inlet suction port is connected
During wire harness element to be tested, automatically turn on, when inlet suction port disconnects conducting sealing unit, self-closed.The setting of inlet suction port
The sealing of loading line and the promptness of work can further be ensured, while a part of air inlet electromagnetic valve can also be substituted
Function.
It is furthermore preferred that described passage sealing unit includes being arranged on the mobile sliding block at front end interface, and it is arranged on
The valve element of filling channel bending place, the front end of valve element is provided with the seal head of closing filling channel, and the afterbody of valve element sets pad
And joint body is stretched out, the mobile sliding block is coordinated by promoting to be formed with pad, and described joint body outer surface is also wrapped up
There is shell, back-moving spring is additionally provided between valve element tail end and shell, it is logical for seal spool inflation when the back-moving spring is upheld
Road.
Even more preferably, the pressure of the thrust being additionally provided with described shell during for test reset spring-compressed
Sensor, the pressure sensor is also connected with PLC control system, and with being combined into for detecting front tab with wire harness to be tested
The self-test unit of element connection status.Pressure sensor can be suffered in real time pressure signal substitute the position signalling of valve element and come
PLC control system is fed back to, so by rational setting, you can to realize only being passed when PLC control system receives pressure
The pressure signal that sensor is transmitted, judges that seal spool head is fully opened, and front tab is fully sealed company with wire harness element to be tested
When connecing, the unlatching test of next step can be just carried out.A joint connection self-check program is provided equivalent to whole test device.
Even more preferably, the setting of described mobile sliding block, front tab and valve element meets：When wire harness to be tested unit
When part top is opened mobile sliding block and is connected with front tab, the open degree of the seal head of valve element reaches maximum.
Test philosophy of the present utility model is：
Electrical measurement program starts the program in leak-testing stage, and PN contents are sent to PLC, and PLC is connected after receiving PN signals
The coil on this road of the air inlet of air inlet/pressure-releasing electromagnetic valve in the gas circuit of tested wire harness element, at this moment each wire harness element start to fill
Gas；When the blowing pressure value reaches the upper limit of setting, PLC controls air inlet/pressure-releasing electromagnetic valve power-off, gas circuit pressurize simultaneously starts test
Leakage rate；In setting time, real-time pressure value on pressure gauge higher than setting lower limit when, then leak-testing pass, PLC
Output pass signals are to electrical measurement platform, while the coil electricity on this road of the deflation of air inlet/pressure-releasing electromagnetic valves is deflated；But if pressure
When value is less than the lower limit for setting, at this moment leak-testing fail, PLC output failure signal can determine whether according to technological process
Part is changed to retest；If the leak-testing pass of all parts, testboard will print qualified test label.
Compared with prior art, the utility model has advantages below：
(1) the utility model can set different test parameters to different units under test, it is possible to while testing multiple
Product component, saves the testing time.
(2) apparatus structure is simple, easy to make, and the sealing test of specialty can be reached in the case where test request is met
Effect.
(3) setting of inlet suction port further ensures the connection sealing with wire harness element to be tested, meanwhile, also pass through
The setting of the pressure sensor at valve element etc. so that whole test process only has when wire harness element connecting detection to be tested passes through
The formal wire harness leak-testing of next step can be just carried out afterwards.
Brief description of the drawings
Fig. 1 is that wire harness of the present utility model reveals test schematic diagram；
Fig. 2 is the schematic diagram of the PLC control system of the utility model embodiment 1；
Fig. 3 is the structural representation of inlet suction port of the present utility model；
In figure, 1-PLC control systems, the tool of 2- wire harness elements, 3- pressure gauges, 4- air inlets/pressure-releasing electromagnetic valve, 5- air inlets
Joint, 51- movement sliding blocks, 52- joint bodies, 53- seal heads, 54- valve elements, 55- pads, 56- shells, 57- pressure sensors.
Specific embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
A kind of wire harness leakage tester, including pressurize gas storage cylinder, pressure gauge 3 and PLC control system 1, pressurize gas storage
Bottle connects the air inlet of wire harness element 2 to be tested by loading line, and pressure gauge 3 connects the tool 2 of wire harness element to be tested
Gas outlet, is additionally provided with air inlet/pressure-releasing electromagnetic valve 4 on loading line, PLC control system 1 be also respectively connected with pressurize gas storage cylinder,
Pressure gauge 3 and air inlet electromagnetic valve 4.
Electrical measurement program starts the program in leak-testing stage, and PN contents are sent to PLC, and PLC is connected after receiving PN signals
The air inlet electromagnetic valve 4 in the gas circuit of wire harness element 2 is tested, at this moment each wire harness element 2 starts inflation；When the blowing pressure value is reached
During the upper limit of setting, PLC control air inlet/pressure-releasing electromagnetic valves 4 are powered off, and gas circuit pressurize simultaneously starts to test leakage rate；In setting time
It is interior, when real-time pressure value on pressure gauge 3 is higher than the lower limit set in table, then leak-testing pass, PLC output pass signals
To electrical measurement platform, while the deflation coil electricity of air inlet/pressure-releasing electromagnetic valve 4 is deflated；But if pressure value is less than the lower limit for setting,
Leak-testing fail, PLC output failure signal, at this moment can determine whether that changing part retests according to technological process；Such as
The leak-testing pass of really all parts, then testboard will the qualified test label of printing.
Embodiment 2
The present embodiment is further arranged on the basis of embodiment 1：
Along inflation direction, loading line is additionally provided with choke valve before air inlet/pressure-releasing electromagnetic valve 4.Choke valve can control from
The blowing pressure out and flow velocity in pressurize gas storage cylinder, it is to avoid treat test wire harness element 2 or air inlet electromagnetic valve 4 causes excessive
Impact, in order to avoid influence test.
Embodiment 3
The present embodiment is further arranged on the basis of embodiment 1：
Loading line is provided with inlet suction port 5 in the end of connection air inlet, and the inlet suction port 5 includes joint body 52,
Filling channel is provided with joint body 52, the back end interface connection loading line of the filling channel, front end interface connection is to be tested
Wire harness element 2, is additionally provided with passage sealing unit in filling channel, and the passage sealing unit meets：Inlet suction port 5 connects to be measured
During examination wire harness element 2, automatically turn on, when inlet suction port 5 disconnects conducting sealing unit, self-closed.Passage sealing unit includes
It is arranged on the mobile sliding block 51 at front end interface, and is arranged on the valve element 54 of filling channel bending place, the front end of valve element 54 sets
The seal head 53 of closing filling channel is equipped with, the afterbody of valve element 54 sets pad 55 and stretches out joint body 52, mobile sliding block 51
Coordinated by promoting to be formed with pad 55, the outer surface of joint body 52 is also enclosed with shell 56, in the tail end of valve element 54 and shell 56
Between be additionally provided with back-moving spring, the back-moving spring uphold when for valve element 54 seal filling channel.Be additionally provided with shell 56 for
The pressure sensor 57 of thrust during test reset spring-compressed, the pressure sensor 57 is also connected with PLC control system 1,
And with the self-test unit being combined into for detecting front tab and the connection status of wire harness element 2 to be tested.Pressure sensor 57 can
PLC control system 1 is fed back to the position signalling of pressure signal replacement valve element 54 suffered in real time, so by rational
Set, you can to realize, only when PLC control system 1 receives the pressure signal that pressure sensor 57 is transmitted, judging valve element 54
Seal head 53 is fully opened, and front tab is fully sealed when being connected with wire harness element 2 to be tested, can just carry out the unlatching of next step
Test.A joint connection self-check program is provided equivalent to whole test device.Mobile sliding block 51, front tab and valve element
54 setting meets：When wire harness element 2 to be tested top is opened mobile sliding block 51 and is connected with front tab, the seal head of valve element 54
53 open degree reaches maximum.
The above-mentioned description to embodiment is to be understood that and use practicality for ease of those skilled in the art
It is new.Person skilled in the art obviously can easily make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, do not depart from improvement that the utility model category made and
Modification all should be within protection domain of the present utility model.
Claims (6)
1. a kind of wire harness leakage tester, it is characterised in that including pressurize gas storage cylinder, pressure gauge (3) and PLC control system
(1), described pressurize gas bomb connects the air inlet of wire harness element (2) to be tested, described pressure gauge (3) by loading line
The pressure tap of wire harness element tool (2) to be tested is connected, air inlet electromagnetic valve (4) is additionally provided with described loading line, it is described
PLC control system (1) be also respectively connected with the pressurize gas storage cylinder, pressure gauge (3) and air inlet/pressure-releasing electromagnetic valve (4).
2. a kind of wire harness leakage tester according to claim 1, it is characterised in that along inflation direction, described fills
Air pipe is additionally provided with choke valve before air inlet electromagnetic valve (4).
3. a kind of wire harness leakage tester according to claim 1, it is characterised in that described loading line is in connection
The end of air inlet is provided with inlet suction port (5), and the inlet suction port (5) includes joint body (52), is set in joint body (52)
There is filling channel, the back end interface connection loading line of the filling channel, front end interface connects wire harness element (2) to be tested,
Passage sealing unit is additionally provided with filling channel, the passage sealing unit meets：Inlet suction port (5) connects wire harness element to be tested
Tool (2) when, automatically turn on, inlet suction port (5) disconnect conducting sealing unit when, self-closed.
4. a kind of wire harness leakage tester according to claim 3, it is characterised in that described passage sealing unit bag
Include the mobile sliding block (51) being arranged at front end interface, and be arranged on the valve element (54) of filling channel bending place, valve element (54)
Front end be provided with the seal head (53) of closing filling channel, the afterbody of valve element (54) sets pad (55) and simultaneously stretches out joint body
(52), the mobile sliding block (51) is coordinated by promoting to be formed with pad (55), and described joint body (52) outer surface is also wrapped
Shell (56) is wrapped with, back-moving spring is additionally provided between valve element (54) tail end and shell (56), the back-moving spring is used for when upholding
Valve element (54) seals filling channel.
5. a kind of wire harness leakage tester according to claim 4, it is characterised in that also set on described shell (56)
Have the pressure sensor (57) of thrust during for test reset spring-compressed, the pressure sensor (57) also with PLC controls
System (1) is connected, and with the self-test unit being combined into for detecting front tab and wire harness element (2) connection status to be tested.
6. a kind of wire harness leakage tester according to claim 5, it is characterised in that described mobile sliding block (51),
The setting of front tab and valve element (54) meets：When mobile sliding block (51) and and front tab are opened in wire harness element (2) to be tested top
During connection, the open degree of the seal head (53) of valve element (54) reaches maximum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443592.5U CN206311287U (en) | 2016-12-27 | 2016-12-27 | A kind of wire harness leakage tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443592.5U CN206311287U (en) | 2016-12-27 | 2016-12-27 | A kind of wire harness leakage tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311287U true CN206311287U (en) | 2017-07-07 |
Family
ID=59246117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621443592.5U Expired - Fee Related CN206311287U (en) | 2016-12-27 | 2016-12-27 | A kind of wire harness leakage tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206311287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361146A (en) * | 2019-04-12 | 2019-10-22 | 宁波拓普电器有限公司 | A kind of Wire bundle testing apparatus |
| CN111024380A (en) * | 2019-12-18 | 2020-04-17 | 贵州华烽电器有限公司 | Pressure-tight sleeve pressure-tight test system and pressure-tight sleeve pressure-tight test method |
-
2016
- 2016-12-27 CN CN201621443592.5U patent/CN206311287U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110361146A (en) * | 2019-04-12 | 2019-10-22 | 宁波拓普电器有限公司 | A kind of Wire bundle testing apparatus |
| CN111024380A (en) * | 2019-12-18 | 2020-04-17 | 贵州华烽电器有限公司 | Pressure-tight sleeve pressure-tight test system and pressure-tight sleeve pressure-tight test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201800 60 Yuan Yuan Road, Anting Town, Jiading District, Shanghai Patentee after: APTIV ELECTRIC SYSTEM Co.,Ltd. Address before: 201805 492 Moyu Road, Jiading District, Shanghai Patentee before: DELPHI PACKARD ELECTRIC SYSTEM Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170707 Termination date: 20211227 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |