CN108613783A - A kind of camera test device for air tightness - Google Patents
A kind of camera test device for air tightness Download PDFInfo
- Publication number
- CN108613783A CN108613783A CN201810634371.3A CN201810634371A CN108613783A CN 108613783 A CN108613783 A CN 108613783A CN 201810634371 A CN201810634371 A CN 201810634371A CN 108613783 A CN108613783 A CN 108613783A
- Authority
- CN
- China
- Prior art keywords
- cavity
- camera
- test device
- air tightness
- pedestal
- 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.)
- Granted
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 63
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000009781 safety test method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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 kind of camera test device for air tightness, camera includes sequentially connected camera lens, shell, end cap, harness, weldering is set to the weld seam between shell and end cap, device includes pedestal, the first cavity for placing camera lens and shell being opened in pedestal, the second cavity for placing end cap being connected to the first cavity being opened in pedestal, weld seam is located in the first cavity, device further includes that ring is butted on sealing element on the outside of the second inside cavities circumference and end cap between circumference, the test gas circuit being connected to the first cavity being opened in pedestal, sealing element is for separating the first cavity and outside air, it is connected to outside air by harness inside camera.A kind of camera test device for air tightness of the present invention, greatly reduces test cavity（That is the first cavity）Volume, shorten the testing time, improve testing efficiency, while reducing testing cost；Whether the air-tightness that can accurately test out camera is good, improves the precision of test.
Description
Technical field
The present invention relates to a kind of camera test device for air tightness.
Background technology
Shell and end cap are generally welded to each other by welding technique, the leakproofness of commissure is straight by camera in assembling
Connect the leakproofness for being related to camera entirety.
Camera is usually integrally wrapped in test chamber body by the existing air-tightness jig for testing camera,
Then it is passed through high pressure gas into test chamber body, and detects the air pressure change in test chamber body, and then obtains the leakage of camera
Value.Firstly, it is necessary to camera is integrally put into test cavity, since camera includes harness, test cavity can be caused excessive,
Testing time is long, and testing cost is higher, and testing efficiency is relatively low；Secondly, if commissure leakproofness is not high, lead to high pressure gas
Body is leaked to by weld seam inside camera, after waiting the stable gas pressure inside cameras, just can not authentic testing go out camera
Leakage value seriously affects the precision of test.
Invention content
The object of the present invention is to provide a kind of camera test device for air tightness, and test cavity is small, and the testing time is short, test
Precision is high.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of camera test device for air tightness, camera include sequentially connected camera lens, shell, end cap, harness, weldering set on institute
State the weld seam between shell and the end cap, described device includes pedestal, be opened in the pedestal for placing the mirror
Head and the shell the first cavity, be opened in the pedestal be connected to first cavity be used for place the end cap
The second cavity, the weld seam is located in first cavity, and described device further includes that ring is butted on the second inside cavities week
Sealing element on the outside of portion and the end cap between circumference, the test gas being connected to first cavity being opened in the pedestal
Road, the sealing element pass through the harness and the external world for separating first cavity and outside air inside the camera
Air communication.
Preferably, the sealing element is the elastic seal ring for being located on the second inside cavities circumference, and described device is also
It is connected to the movable part of the elastic seal ring end including up and down be set in second cavity and one end, is used for
Drive the movable part that the elastic seal ring is pressed on to the driving mechanism on the end cap.
It is highly preferred that described device further includes being set in second cavity to be used to prevent the elastic seal ring from being pressed
Enter the blocking portion in first cavity, the blocking portion and the movable part are respectively arranged on the both ends of the elastic seal ring.
It is highly preferred that the movable part includes the cylinder for being located on second inside cavity, is set on the outside of the cylinder
Extension, the pedestal side offers the through-hole passed through by the extension, and the extension is vertically movable
In the through-hole.
It is highly preferred that the driving mechanism includes engine base, the cylinder body that is fixedly arranged on the engine base, along length extension side
To the upper and lower movable push rod being arranged in the cylinder body, the external part of the push rod is for compressing the another of the movable part
End.
It is further preferred that the driving mechanism further includes being connected on the external part of the push rod to be used to compress institute
The briquetting of movable part is stated, the first opening for allowing the harness to be pierced by is offered on the briquetting.
It is further preferred that being offered on the movable part for coordinating first opening that the harness is allowed to be pierced by
Second opening.
It is further preferred that the driving mechanism further include the up and down guiding axis being arranged in the engine base,
One end is connected to the connector on the guiding axis, and the other end of the connector connects with the push rod and the briquetting respectively
It connects.
It is further preferred that the push rod, the movable part, the elastic seal ring vertically from top to bottom according to
Secondary distribution, second cavity are located at the top of first cavity.
It is further preferred that the push rod, the movable part, the elastic seal ring vertically from the bottom up according to
Secondary distribution, second cavity are located at the lower section of first cavity.
Due to the application of the above technical scheme, the present invention has following advantages compared with prior art：One kind of the present invention is taken the photograph
As head test device for air tightness, one end that camera contains weld seam is only put into test cavity（That is the first cavity）In, significantly
The volume for reducing test cavity, shortens the testing time, improves testing efficiency, while reducing testing cost；Make camera shooting
Head is internal to be connected to by harness with outside air, even if the testing time is longer, has high pressure gas to leak to camera by weld seam
Inside, but due to being connected to outside air inside camera, high pressure gas can be always maintained at leakage, test the air pressure in cavity
The air pressure for the high pressure gas being filled with is cannot keep, therefore whether the air-tightness that can accurately test out camera is good, improved
The precision of test.
Description of the drawings
Attached drawing 1 is the structural schematic diagram one of apparatus of the present invention；
Attached drawing 2 is the structural schematic diagram two of apparatus of the present invention；
Attached drawing 3 is the structural schematic diagram of camera.
Wherein：1, camera lens；2, shell；3, end cap；4, harness；5, weld seam；6, pedestal；61, through-hole；7, the first cavity；8、
Second cavity；9, sealing element；10, gas circuit is tested；11, movable part；111, cylinder；112, extension；113, the second opening；12、
Blocking portion；13, engine base；14, cylinder body；15, push rod；16, briquetting；161, the first opening；17, guiding axis；18, connector.
Specific implementation mode
The technical solution of the present invention will be further described below with reference to the accompanying drawings.
Referring to shown in Fig. 1-3, a kind of above-mentioned camera test device for air tightness, camera include sequentially connected camera lens 1,
Shell 2, end cap 3, harness 4, weldering are set to the weld seam 5 between shell 2 and end cap 3, and the device is for testing whether weld seam 5 seals.
The for placing camera lens 1 and shell 2 that camera test device for air tightness includes pedestal 6, is opened in pedestal 6
One cavity 7, be opened in pedestal 6 be connected to the first cavity 7 for placing the second cavity 8 of end cap 3, weld seam 5 is located at the
In one cavity 7.Camera test device for air tightness further include ring be butted on 8 inside circumference of the second cavity and 3 outside circumference of end cap it
Between sealing element 9, the test gas circuit 10 being connected to the first cavity 7 that is opened in pedestal 6.Gas circuit 10 is tested to be used for the first chamber
It is passed through high pressure gas in body 7；Sealing element 9 makes the first cavity 7 keep sealing state for separating the first cavity 7 and outside air；
It is then connected to outside air holding by harness 4 inside camera.
In the present embodiment, sealing element 9 is the elastic seal ring for being located on 8 inside circumference of the second cavity.Camera is airtight
System safety testing device further includes the movable part that up and down be set in the second cavity 8 and one end is connected to elastic seal ring end
11, the driving mechanism for driving movable part 11 to squeeze elastic seal ring and being pressed on end cap 3, by the way that the driving machine is arranged
Structure, can ensure between elastic seal ring and 3 outside circumference of 8 inside circumference of the second cavity and end cap it is seamless abut, that is, ensure
The leakproofness of first cavity 7.
In the present embodiment, driving mechanism includes engine base 13, the cylinder body 14 that is fixedly arranged on engine base 13, extends along length
The up and down push rod 15 being arranged in cylinder body 14 in direction.The external part of push rod 15 is used to compress the other end of movable part 11.
In the present embodiment, push rod 15 is vertically distributed, and the pressure that movable part 11 squeezes elastic seal ring is given by push rod 15.
In the present embodiment, push rod 15, movable part 11, elastic seal ring are vertically sequentially distributed from top to bottom, the
Two cavitys 8 are located at the top of the first cavity 7.In another embodiment, push rod 15, movable part 11, elastic seal ring are along vertical
Direction is sequentially distributed from the bottom up, and the second cavity 8 is then located at the lower section of the first cavity 7.Specific setting can be according to actual needs
It is selected.
In the present embodiment, camera test device for air tightness further includes being set in the second cavity 8 to be used to prevent elasticity
Sealing ring is pressed into the blocking portion 12 in the first cavity 7.Blocking portion 12 and movable part 11 are respectively arranged on the both ends of elastic seal ring,
I.e. blocking portion 12 is supported set on the lower end of elastic seal ring, and movable part 11 is then supported set on the upper end of elastic seal ring.It is set by this
It sets, elastic seal ring can be avoided to be pressed into the first cavity 7, being extruded in causes test result to be easy asking for error at weld seam 5
Topic.
In the present embodiment, movable part 11 includes being located on the cylinder 111 inside the second cavity 8, being set on the outside of cylinder 111
Extension 112,6 side of pedestal offers the through-hole 61 that extended portion 112 passes through, and extension 112 is vertically movable
In the through-hole 61, extension 112 is distributed in the horizontal direction.By this setting, first, pass through extension 112 and through-hole
The up and down motion of 61 pairs of movable parts 11 plays the role of guiding；Secondly, when driving mechanism is uncontrollable, by through-hole 61 to work
Moving downward for moving part 11 plays the role of limit, and push rod 15 can be avoided to be pressed down against the camera shooting in damage test always
Head.
Obviously, elastic seal ring and cylinder 111 are hollow structures, for making camera when being put into pedestal 6, Neng Goushun
Profit passes through.
In the present embodiment, driving mechanism further includes being connected on the external part of push rod 15 to be used to compress movable part 11
The briquetting 16 at end offers the first opening 161 for allowing harness 4 to be pierced by briquetting 16.Meanwhile it being opened up on movable part 11 useful
The second opening 113 that harness 4 is pierced by, the second opening 113 is allowed to be located at the underface of the first opening 161 in the first opening 161 of cooperation.
By this setting, harness 4 can be avoided to be subject to crushing in test.
In the present embodiment, driving mechanism further includes that the up and down guiding axis 17 being arranged in engine base 13, one end connect
The other end of the connector 18 being connected on guiding axis 17, connector 18 is connect with push rod 15 and briquetting 16 respectively.In the present embodiment
In, guiding axis 17 is mutually parallel with push rod 15, is vertically distributed；Push rod 15 is connected to the upper surface of connector 18, pressure
Block 16 is then connected to the lower surface of connector 18.
The course of work of lower the present embodiment is illustrated in detail below：
When test, first, camera is put into 1 direction directed downwardly of camera lens in pedestal 6, weld seam 5 is made to be located in the first cavity 7；
Then, driving push rod 15 moves downward, and the briquetting 16 being connected on 15 external part of push rod compresses movable part 11, and passes through movable part
11 squeeze elastic seal ring, are pushed against after so that elastic seal ring is extruded between the second cavity 8 and end cap 3；Finally, pass through test
Gas circuit 10 is passed through high pressure gas into the first cavity 7, and tests the real-time pressure in the first cavity 7, and quilt is determined by test result
Whether the air-tightness for surveying camera is good.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of camera test device for air tightness, camera includes that sequentially connected camera lens, shell, end cap, harness, weldering are set to
Weld seam between the shell and the end cap, it is characterised in that：The use that described device includes pedestal, is opened in the pedestal
It is used for what first cavity was connected in placing the first cavity of the camera lens and the shell, being opened in the pedestal
The second cavity of the end cap is placed, the weld seam is located in first cavity, and described device further includes that ring is butted on described
Sealing element on the outside of two inside cavities circumferences and the end cap between circumference, be opened in the pedestal with first cavity
The test gas circuit of connection, the sealing element pass through institute for separating first cavity and outside air inside the camera
Harness is stated to be connected to outside air.
2. a kind of camera test device for air tightness according to claim 1, it is characterised in that：The sealing element sets for ring
In the elastic seal ring of the second inside cavities circumference, described device further includes up and down is set in second cavity
And one end be connected to the movable part of the elastic seal ring end, for driving the movable part by the elastic seal ring pressure
The tightly driving mechanism on the end cap.
3. a kind of camera test device for air tightness according to claim 2, it is characterised in that：Described device further includes setting
In second cavity it is used to that the elastic seal ring to be prevented to be pressed into the blocking portion in first cavity, the blocking
Portion and the movable part are respectively arranged on the both ends of the elastic seal ring.
4. a kind of camera test device for air tightness according to claim 2, it is characterised in that：The movable part includes ring
Cylinder set on second inside cavity, the extension on the outside of the cylinder, the pedestal side offer described
The through-hole that extension passes through, the extension is vertically movable to be set in the through-hole.
5. a kind of camera test device for air tightness according to claim 2, it is characterised in that：The driving mechanism includes
Engine base, the cylinder body being fixedly arranged on the engine base, along length extending direction it is up and down be arranged in pushing away in the cylinder body
Bar, the external part of the push rod are used to compress the other end of the movable part.
6. a kind of camera test device for air tightness according to claim 5, it is characterised in that：The driving mechanism is also wrapped
The briquetting for compressing the movable part being connected on the external part of the push rod is included, is offered on the briquetting for allowing
State the first opening that harness is pierced by.
7. a kind of camera test device for air tightness according to claim 6, it is characterised in that：It is opened up on the movable part
It is useful for the second opening for coordinating first opening that the harness is allowed to be pierced by.
8. a kind of camera test device for air tightness according to claim 6, it is characterised in that：The driving mechanism is also wrapped
Include the up and down guiding axis being arranged in the engine base, one end is connected to connector on the guiding axis, the connection
The other end of part is connect with the push rod and the briquetting respectively.
9. a kind of camera test device for air tightness according to claim 5, it is characterised in that：The push rod, the work
Moving part, the elastic seal ring are vertically sequentially distributed from top to bottom, and second cavity is located at first cavity
Top.
10. a kind of camera test device for air tightness according to claim 5, it is characterised in that：The push rod, the work
Moving part, the elastic seal ring are vertically sequentially distributed from the bottom up, and second cavity is located at first cavity
Lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810634371.3A CN108613783B (en) | 2018-06-20 | 2018-06-20 | Camera gas tightness testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810634371.3A CN108613783B (en) | 2018-06-20 | 2018-06-20 | Camera gas tightness testing arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108613783A true CN108613783A (en) | 2018-10-02 |
| CN108613783B CN108613783B (en) | 2023-12-15 |
Family
ID=63665394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810634371.3A Active CN108613783B (en) | 2018-06-20 | 2018-06-20 | Camera gas tightness testing arrangement |
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| Country | Link |
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| CN (1) | CN108613783B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109490091A (en) * | 2018-12-12 | 2019-03-19 | 科堡科技（江苏）有限公司 | A kind of static pressure for Intelligent toilet cover, apparatus for impact testing |
| CN110895178A (en) * | 2019-11-27 | 2020-03-20 | 广东金弘达自动化科技股份有限公司 | Camera gas tightness testing arrangement |
| CN113008499A (en) * | 2021-02-19 | 2021-06-22 | 广东省饰铭光电科技有限公司 | Test method of school monitoring camera |
| CN116730000A (en) * | 2023-08-16 | 2023-09-12 | 苏州英维特精密机械有限公司 | Charging and discharging equipment for camera wire harness airtight test |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113008499A (en) * | 2021-02-19 | 2021-06-22 | 广东省饰铭光电科技有限公司 | Test method of school monitoring camera |
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| CN116730000B (en) * | 2023-08-16 | 2023-10-20 | 苏州英维特精密机械有限公司 | Charging and discharging equipment for camera wire harness airtight test |
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|---|---|
| CN108613783B (en) | 2023-12-15 |
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