CN106441734A - Sealing detection method and sealing detection equipment based on dry comparison method - Google Patents
Sealing detection method and sealing detection equipment based on dry comparison method Download PDFInfo
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- CN106441734A CN106441734A CN201610887072.1A CN201610887072A CN106441734A CN 106441734 A CN106441734 A CN 106441734A CN 201610887072 A CN201610887072 A CN 201610887072A CN 106441734 A CN106441734 A CN 106441734A
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- Prior art keywords
- storehouse
- detection
- quantitative
- sealing
- benchmark
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
Abstract
The invention discloses a sealing detection method and sealing detection equipment based on a dry comparison method. The sealing detection method comprises the following steps: arranging a detection cabin, a reference bin and a first/second quantitative bin of which the volumes are matched; firstly, vacuumizing the first/second quantitative bin; secondly, enabling the reference bin and the detection bin which is internally provided with a to-be-detected sealing element to be respectively communicated with the first/second quantitative bin; thirdly, breaking off the communication, maintaining the pressure, and then respectively detecting the air pressure of the reference bin and the air pressure of the detection bin, thereby providing the sealing detection method and the sealing detection equipment for detecting the sealing property of the sealing element based on the dry comparison method; the risk and troubles of water immersion detection are avoided, and error detection due to direct vacuumizing is also avoided; the sealing detection method and the sealing detection equipment have the advantages of ingenious concept, easiness in implementation, high detection efficiency, high accuracy and the like.
Description
Technical field
The invention belongs to sealing detection technical field, specifically, particularly to a kind of sealing based on dry type relative method
Detection method and its equipment.
Background technology
At present, some parts or product needed are sealed aborning, and sealing is detected.Existing close
Envelope detection is main to include immersion detection and evacuation detection.
Wherein immersion detection needs to be immersed in the water sealing member, to judge sealing by having seen whether that bubble produces,
There is problems that the easy missing inspection of bubble overflowed causes the judgement of mistake；And this method is suitable only for soaking
Article, otherwise in detection process, water immerses in the sealing member of poor sealing, easily sealing member is caused to damage；Moreover, immersion
Afterwards, sealing member needs to carry out follow-up dried, increased detection operation and cost.
And evacuation detection mainly sealing member is placed in container, to pressurize after container vacuum-pumping for a period of time, lead to
Cross the sealing to judge sealing member for the pressure changing monitoring in container.But, for revealing serious sealing member, taking out
During vacuum, the air in sealing member can be pumped with tainer air, and the pressure in container in pressure maintaining period is still
So will not change, thus causing to misjudge.
Content of the invention
An object of the present invention is that offer one kind will not damage sealing member and testing result is accurately based on dry type
The hermetization testing method of relative method.
The technical scheme that the present invention solves one of purpose is as follows：A kind of hermetization testing method based on dry type relative method, bag
Include sealing member to be detected, the volume of this sealing member is V1, also include detecting that storehouse, benchmark storehouse, the first quantitative storehouse and second are quantitative
Storehouse, the volume in described detection storehouse is V2, the volume in benchmark storehouse is V3, described V1, V2 and V3 meet V3=V2-V1, described first
Quantitative storehouse is identical with the volume in the second quantitative storehouse；
It is further comprising the steps of,
Step one, preparation, part to be detected are put in detection storehouse, closing detects storehouse and benchmark storehouse；And it is fixed to first
Amount storehouse and the second quantitative storehouse are evacuated down to same vacuum；
Step 2, connection, will detect that storehouse is connected with the first quantitative storehouse and the second quantitative storehouse respectively with benchmark storehouse, until respective
Reach dynamic negative-pressure balance；
Step 3, disconnection pressurize, disconnection detection storehouse and the connection in the first quantitative storehouse, simultaneously switch off benchmark storehouse quantitative with second
The connection in storehouse, and pressurize 30-120s；
Step 4, detection pressure value, detection detection storehouse and benchmark storehouse pressure value, and contrast two pressure be worth to detect
Result.
In said method, because the first quantitative storehouse is identical with the volume in the second quantitative storehouse, if this volume is V4；
And after assuming in step one to the first quantitative storehouse and the second quantitative storehouse evacuation, the first quantitative storehouse and second quantitative
The pressure in storehouse is P1；
Assume that pressure detection storehouse is detected in step 4 is Pi, the pressure in benchmark storehouse is Pj；
In step 2, detection storehouse is connected and reaches dynamic negative-pressure with the first quantitative storehouse and the second quantitative storehouse respectively with benchmark storehouse
After balance, V3P0+V4P1=(V2-V1) P0+V4P1 should be met；
To detect in step 3 storehouse and benchmark storehouse disconnect with the first quantitative storehouse and the second quantitative storehouse respectively and pressurize after,
Pi=Pj should be met.
Therefore it may only be necessary to whether Pi, Pj according to detection are equal, you can judge the sealing of sealing member.Using this dry
Formula relative method carries out sealing detection, has both avoided risk and the trouble of water logging detection, turn avoid the false retrieval of direct evacuation, show
Improve detection efficiency and the accuracy of detection with writing.
Preferably, pressurize 45s in step 3.
The second object of the present invention is to provide a kind of sealing detection equipment based on dry type relative method.
The technical scheme that the present invention solves the two of purpose is as follows：Including frame, described frame is provided with least one
Detection storehouse and at least one benchmark storehouse, and be also equipped with frame and detect storehouse correspond arrangement the first quantitative storehouse,
And the quantitative storehouse of second arranging is corresponded with benchmark storehouse, the described first quantitative storehouse is identical with the volume in the second quantitative storehouse, institute
The volume stating detection storehouse is V2, the volume in benchmark storehouse is V3, V3=V2-V1, and described V1 is the volume of sealing member to be detected.
Using said structure, actually used in it is only necessary in detection storehouse, the first quantitative storehouse, benchmark storehouse and the second quantitative storehouse
Between connect corresponding pipeline, and arrange corresponding valve and pressure gauge, you can solve the technology of one of purpose using the present invention
Scheme carries out sealing detection.
Upper and lower two groups of doors are fixed with described frame, two relative before and after including row's doors of every group of door, each
Sealing cylinder is respectively connected with door；Described detection storehouse is in horizontally disposed tubular, and detects that storehouse has upper and lower two groups, every group of inspection
The front two rows door of the rear and front end and every group of door of surveying storehouse corresponds, and support body fixing phase is passed through in upper and lower two groups of detection storehouses
Connect, and driving means and guiding mechanism are connected with described support body, in the presence of driving means, support body is along guiding mechanism
Move up and down, when support body move up make that one group of detection storehouse is with the cooperation of one group of door above above when, set below detection storehouse with
Set below door departs from, when support body move down make set below detect that storehouse and set below door coordinate when, above one group
Detection storehouse is departed from one group of door above.So setting door and detection storehouse, makes upper and lower two groups of detection storehouses can be used alternatingly, when
When one of which detection storehouse is detected with the cooperation of corresponding door, another group of door can carry out the handling of sealing member, thus
Considerably improve detection efficiency.
Described guiding mechanism includes the guide rod of four matrix distribution, and on each described guide rod, kink has sliding sleeve, described cunning
Set is fixedly linked with support body.The structure of guiding mechanism is simple, and handling are easily.
Described driving means include two cylinders in left and right, and piston rod upper end and the support body of described cylinder are fixedly linked.Drive
The structure of device is simple, easy to use.
Preferably, every group of detection storehouse is arranged side by side with six, described first quantitative storehouse has six, described benchmark storehouse and the
Two quantitative storehouses are provided with one.
Preferably, being fixed on the bottom of frame about described benchmark storehouse, the first quantitative storehouse and the second quantitative storehouse side by side.
Beneficial effect：The present invention, by arranging the detection storehouse that volume matches, benchmark storehouse and first/second quantitation storehouse, is led to
After first to first/second quantitation storehouse evacuation, then by the detection storehouse of benchmark storehouse and built-in sealing member to be detected respectively with first/
Second quantitative storehouse connects, then disconnects the air pressure that connection detects benchmark storehouse and detection storehouse respectively, thus providing one kind to be based on dry type
Relative method detect sealing member sealing method and apparatus, have be skillfully constructed, easy to implement, detection efficiency is high, accuracy
High the advantages of.
Brief description
Fig. 1 is the step schematic diagram of embodiment one.
Fig. 2 is the structural representation of embodiment two.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the left view of Fig. 2.
In figure labelling is as follows：Frame 1, detection storehouse 2, sealing cylinder 3, door 4, cylinder 5, the quantitative storehouse 7 of guide rod 6, first, base
Quasi- storehouse the 8, second quantitation storehouse 9, sliding sleeve 10, support body 11.
Specific embodiment
Embodiments of the invention are described below in detail, described embodiment example is shown in the drawings, wherein from start to finish
The element that same or similar label represents same or similar element or has same or like function.Below with reference to attached
Figure description embodiment is exemplary it is intended to explain the present invention, and is not considered as limiting the invention.With reference to attached
Figure, by being further described to the specific embodiment of the present invention, makes technical scheme and its advantage more
Plus it is clear, clear and definite.
Embodiment one：
As shown in figure 1, the present embodiment includes sealing member to be detected, the volume of this sealing member is V1, also include detecting storehouse,
Benchmark storehouse, the first quantitative storehouse and the second quantitative storehouse.The volume in described detection storehouse is V2, the volume in benchmark storehouse is V3, described V1, V2
Meet V3=V2-V1 with V3.Described first quantitative storehouse is identical with the volume in the second quantitative storehouse, in order that Detection results are more accurate
Really, the preferably described first quantitative storehouse of the present embodiment is identical with the volume in benchmark storehouse with the volume in the second quantitative storehouse, namely V3=V4.
The present embodiment method comprises the following steps：
Step one, preparation, part to be detected are put in detection storehouse, closing detects storehouse and benchmark storehouse；And it is fixed to first
Amount storehouse and the second quantitative storehouse are evacuated down to same vacuum；
Step 2, connection, will detect that storehouse is connected with the first quantitative storehouse and the second quantitative storehouse respectively with benchmark storehouse, until respective
Reach dynamic negative-pressure balance；
Step 3, disconnection pressurize, disconnection detection storehouse and the connection in the first quantitative storehouse, simultaneously switch off benchmark storehouse quantitative with second
The connection in storehouse, and pressurize 30-120s；The present embodiment preferred pressurize 45s.
Step 4, detection pressure value, detection detection storehouse and benchmark storehouse pressure value, and contrast two pressure be worth to detect
Result.
Embodiment two：
As shown in Figure 2, Figure 3 and Figure 4, the present embodiment includes frame 1, is provided with least one detection in described frame 1
Storehouse 2 and at least one benchmark storehouse 8, and be also equipped with frame 1 and detect storehouse 2 correspond arrangement the first quantitative storehouse 7,
And the second quantitative storehouse 9 of arrangement is corresponded with benchmark storehouse 8.The volume phase in described first quantitative storehouse 7 and the second quantitation storehouse 9
With the volume in described detection storehouse 2 is V2, the volume in benchmark storehouse 8 is V3, V3=V2-V1, and described V1 is the body of sealing member to be detected
Long-pending.In order that Detection results are more accurate, the volume in the preferably described first quantitative storehouse 7 of the present embodiment and the second quantitative storehouse 9 and base
The volume in quasi- storehouse 8 is identical, namely V3=V4.It is connected with first pipe between described detection storehouse 2 and the corresponding first quantitative storehouse 7
Road, is provided with the first stop valve on described first pipeline；Connect between described benchmark storehouse 8 and the corresponding second quantitative storehouse 9
There is the second pipeline, described second pipeline is provided with the second stop valve.In described detection storehouse 2, the quantitative storehouse 7 in benchmark storehouse 8, first
It is mounted on pressure-detecting device with the second quantitative storehouse 9.
As shown in Figure 2, Figure 3 and Figure 4, upper and lower two groups of doors 4 are fixed with described frame 1, before and after every group of door 4 includes
Two relative row's doors 4, are respectively connected with sealing cylinder 3 on each described door 4.Described detection storehouse 2 is in horizontally disposed cylinder
Shape, and detect that storehouse 2 has upper and lower two groups, the rear and front end in every group of detection storehouse 2 is with the front two rows door 4 of every group of door 4 one by one
Corresponding, preferably every group of detection storehouse 2 of the present embodiment is arranged side by side with six.Upper and lower two groups of detection storehouses 2 are fixedly linked by support body 11,
And it is connected with driving means and guiding mechanism on described support body 11, in the presence of driving means, support body 11 is along Guiding machine
Structure moves up and down；And, when support body 11 move up make that one group of detection storehouse 2 is with one group of door 4 cooperation above above when, below one
Group detection storehouse 2 is departed from set below door 4；Set below is made to detect storehouse 2 and set below door 4 when support body 11 moves down
During cooperation, above one group detection storehouse 2 depart from above one group of door 4.Described guiding mechanism includes the guide rod of four matrix distribution
6, on each described guide rod 6, kink has sliding sleeve 10, and described sliding sleeve 10 and support body 11 are fixedly linked.Described driving means include a left side
Right two cylinders 5, the piston rod upper end of described cylinder 5 and support body 11 are fixedly linked.
As shown in figure 3, the preferably described first quantitative storehouse 7 of the present embodiment has six, described benchmark storehouse 8 and the second quantitative storehouse 9
It is provided with one.The quantitative storehouse 7 in described benchmark storehouse 8, first and the second quantitative storehouse 9 about are fixed on the bottom of frame 1 side by side.
Claims (8)
1. a kind of hermetization testing method based on dry type relative method, including sealing member to be detected, the volume of this sealing member is V1,
It is characterized in that：Also include detecting storehouse, benchmark storehouse, the first quantitative storehouse and the second quantitative storehouse, the volume in described detection storehouse is V2, base
The volume in quasi- storehouse is V3, described V1, V2 and V3 meet V3=V2-V1, the volume phase in the described first quantitative storehouse and the second quantitative storehouse
With；
It is further comprising the steps of,
Step one, preparation, part to be detected are put in detection storehouse, closing detects storehouse and benchmark storehouse；And to the first quantitative storehouse
It is evacuated down to same vacuum with the second quantitative storehouse；
Step 2, connection, will detect that storehouse is connected with the first quantitative storehouse and the second quantitative storehouse respectively with benchmark storehouse, until each reaching
Dynamic negative-pressure balances；
Step 3, disconnection pressurize, disconnection detection storehouse and the connection in the first quantitative storehouse, simultaneously switch off benchmark storehouse and the second quantitative storehouse
Connection, and pressurize 30-120s；
Step 4, detection pressure value, detection detection storehouse and benchmark storehouse pressure value, and contrast two pressure be worth to detection knot
Really.
2. according to claim 1 the hermetization testing method based on dry type relative method it is characterised in that：Pressurize in step 3
45s.
3. a kind of sealing detection equipment based on dry type relative method it is characterised in that：Including frame, described frame is provided with
At least one detection storehouse and at least one benchmark storehouse, and be also equipped with frame and detect that storehouse corresponds the first of arrangement
Quantitative storehouse and the second quantitative storehouse corresponding arrangement with benchmark storehouse, the volume in the described first quantitative storehouse and the second quantitative storehouse
Identical, the volume in described detection storehouse is V2, the volume in benchmark storehouse is V3, V3=V2-V1, and described V1 is the body of sealing member to be detected
Long-pending.
4. according to claim 3 the sealing detection equipment based on dry type relative method it is characterised in that：Solid in described frame
Surely there are upper and lower two groups of doors, two relative before and after including row's doors of every group of door, each door is respectively connected with sealing cylinder；
Described detection storehouse is in horizontally disposed tubular, and detects that storehouse has upper and lower two groups, the rear and front end in every group of detection storehouse and every group of storehouse
The front two rows door of door corresponds, and upper and lower two groups of detection storehouses are fixedly linked by support body, and connect on described support body
There are driving means and guiding mechanism, in the presence of driving means, support body moves up and down along guiding mechanism, when support body moves up
, with during one group of door cooperation above, set below detection storehouse is departed from set below door, works as support body to make one group of detection storehouse above
Move down when making set below detect that storehouse and set below door coordinate, above one group of detection storehouse take off with one group of door above
From.
5. according to claim 4 the sealing detection equipment based on dry type relative method it is characterised in that：Described guiding mechanism bag
Include the guide rod of four matrix distribution, kink has sliding sleeve on each described guide rod, and described sliding sleeve and support body are fixedly linked.
6. according to claim 5 the sealing detection equipment based on dry type relative method it is characterised in that：Described driving means bag
Include two cylinders in left and right, piston rod upper end and the support body of described cylinder are fixedly linked.
7. according to claim 6 the sealing detection equipment based on dry type relative method it is characterised in that：Every group of detection storehouse is side by side
It is disposed with six, the described first quantitative storehouse has six, described benchmark storehouse and the second quantitative storehouse are provided with one.
8. according to claim 3 or 4 or 5 or 6 or 7 the sealing detection equipment based on dry type relative method it is characterised in that：Institute
State the bottom being fixed on frame about benchmark storehouse, the first quantitative storehouse and the second quantitative storehouse side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887072.1A CN106441734A (en) | 2016-10-11 | 2016-10-11 | Sealing detection method and sealing detection equipment based on dry comparison method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610887072.1A CN106441734A (en) | 2016-10-11 | 2016-10-11 | Sealing detection method and sealing detection equipment based on dry comparison method |
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| CN106441734A true CN106441734A (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610887072.1A Pending CN106441734A (en) | 2016-10-11 | 2016-10-11 | Sealing detection method and sealing detection equipment based on dry comparison method |
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|---|---|---|---|---|
| EP0038824B1 (en) * | 1979-10-30 | 1984-06-13 | Nolek System Ab | Method for testing the fluid tightness of a test object |
| JP4061779B2 (en) * | 1999-06-16 | 2008-03-19 | 株式会社デンソー | Leakage measuring device and leak inspection device |
| CN201075051Y (en) * | 2007-08-16 | 2008-06-18 | 博益(天津)气动技术研究所有限公司 | Apparatus for detecting leakage of sealing article |
| CN101210856A (en) * | 2006-12-29 | 2008-07-02 | 英华达股份有限公司 | Test system for testing water-proof product and test program |
| CN202305146U (en) * | 2011-04-02 | 2012-07-04 | 北京拓奇星自动化技术有限公司 | Air tightness detection apparatus |
| WO2015189219A1 (en) * | 2014-06-12 | 2015-12-17 | Inficon Gmbh | Differential pressure measurement with film chamber |
| CN105278571A (en) * | 2014-06-03 | 2016-01-27 | 金东彦 | Apparatus for accurately testing waterproofing of a terminal using a reference chamber unit |
-
2016
- 2016-10-11 CN CN201610887072.1A patent/CN106441734A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0038824B1 (en) * | 1979-10-30 | 1984-06-13 | Nolek System Ab | Method for testing the fluid tightness of a test object |
| JP4061779B2 (en) * | 1999-06-16 | 2008-03-19 | 株式会社デンソー | Leakage measuring device and leak inspection device |
| CN101210856A (en) * | 2006-12-29 | 2008-07-02 | 英华达股份有限公司 | Test system for testing water-proof product and test program |
| CN201075051Y (en) * | 2007-08-16 | 2008-06-18 | 博益(天津)气动技术研究所有限公司 | Apparatus for detecting leakage of sealing article |
| CN202305146U (en) * | 2011-04-02 | 2012-07-04 | 北京拓奇星自动化技术有限公司 | Air tightness detection apparatus |
| CN105278571A (en) * | 2014-06-03 | 2016-01-27 | 金东彦 | Apparatus for accurately testing waterproofing of a terminal using a reference chamber unit |
| WO2015189219A1 (en) * | 2014-06-12 | 2015-12-17 | Inficon Gmbh | Differential pressure measurement with film chamber |
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Effective date of registration: 20180402 Address after: 400039 Chongqing Jiulongpo Yuzhou Road No. 60 Applicant after: Chongqing Aerospace Industry Co., Ltd. Address before: 400039 Chongqing Jiulongpo Yuzhou Road No. 60 Applicant before: Chongqing Aerospace Electromechanical Design Institute |
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Application publication date: 20170222 |