CN105628310B - Tightness measuring device and test method - Google Patents
Tightness measuring device and test method Download PDFInfo
- Publication number
- CN105628310B CN105628310B CN201610089168.3A CN201610089168A CN105628310B CN 105628310 B CN105628310 B CN 105628310B CN 201610089168 A CN201610089168 A CN 201610089168A CN 105628310 B CN105628310 B CN 105628310B
- Authority
- CN
- China
- Prior art keywords
- article putting
- putting groove
- upper cover
- air pressure
- sealing
- 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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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 present invention discloses tightness measuring device and test method, which includes：Board is equipped with article putting groove on board, is equipped with and the sealing upper cover for being closed article putting groove in the top of article putting groove；Seal assembly is set in article putting groove, including：Sealing ring and the driving cylinder being sequentially connected with sealing ring；Positioning component is set in article putting groove, including：Supporting rack equipped with step surface；Vacuum extractor is set in article putting groove, and the seal cavity for being formed with sealing upper cover to article putting groove vacuumizes；Detection components are set in article putting groove, including：First air pressure inductor, the first pressure inductor are used to detect article putting groove and seal the atmospheric pressure value for the seal cavity that upper cover is formed.Tightness measuring device of the present invention and test method, the test device is simple in structure, at low cost, and the test method safety coefficient is high, and testing efficiency is good, and measuring accuracy is high.
Description
Technical field
The present invention relates to a kind of mechanical jigs, and in particular to a kind of tightness measuring device and test method.
Background technology
Before product export, need to carry out a series of test to product, wherein for products such as some valve class, tubings,
Performing leak test is even more important, and existing tightness measuring device is complicated, is not easy to operating personnel's operation, and existing close
The test of envelope property is detected frequently with the mode for being filled with gas in closed cavity, if gas is filled with excess, it may occur that explosion,
There are some potential safety problemss.
Therefore it is a kind of simple in structure, at low cost, safety coefficient is high, and the high tightness measuring device of accuracy and test method are urgently
It waits proposing.
Invention content
In order to solve the above-mentioned technical problem, the present invention proposes a kind of tightness measuring device and test method, the test
Apparatus structure is simple, at low cost, and the test method safety coefficient is high, and testing efficiency is good, and measuring accuracy is high.
In order to achieve the above object, technical scheme is as follows：
Tightness measuring device includes：Board, on board be equipped with article putting groove, the top of article putting groove be equipped with for closing
Close the sealing upper cover of article putting groove；Seal assembly is set in article putting groove, including：Sealing ring and with sealing ring be sequentially connected
Drive cylinder；Positioning component is set in article putting groove, including：Supporting rack equipped with step surface；Vacuum extractor is set to and sets
In object slot, the seal cavity for being formed with sealing upper cover to article putting groove vacuumizes；Detection components are set to article putting groove
It is interior, including：First air pressure inductor, the first pressure inductor are used to detect the seal cavity that article putting groove is formed with sealing upper cover
Atmospheric pressure value.
A kind of tightness measuring device of the present invention is simple in structure, product is set on the supporting rack of article putting groove, article putting groove
It is closed with sealing upper cover, forms the cavity of sealing, driving cylinder driving sealing ring movement is sealed product opening, makes
Interiors of products forms the cavity of sealing.Article putting groove with the seal cavity that sealing upper cover is formed take out using vacuum extractor true
Sky, and whether the first air pressure inductor is detected the atmospheric pressure value in the seal cavity, judge it in standard pressure value range
It is interior.To be detected to the sealing performance of product.
Tightness measuring device of the present invention is not necessarily to be inflated during test, reduces security risk, meanwhile, this hair
Bright simple in structure, simple operation, detection efficiency is high, and precision is high.
Based on the above technical solution, following improvement can also be done：
As a preferred option, guide post is equipped on board, sealing upper cover is slidably connected with guide post, sealing upper cover and lifting
Cylinder-driven connects, and lifting cylinder driving sealing upper cover is lifted along guide post.
Using the above preferred scheme, it seals upper cover and the sealing effect of article putting groove is more preferable.
As a preferred option, it is equipped with multiple protective plates on board, multiple protective plates form working region, article putting groove,
Guide post, sealing upper cover are set in working region.
Using the above preferred scheme, the safety coefficient of device entirety is improved.
As a preferred option, the grating sensing device for inductive operation personnel is equipped on board table top.
Using the above preferred scheme, the safety coefficient of device entirety is improved.
As a preferred option, positioning component further includes：The cunning for being set to the sliding rail of glove groove bottom, being set on sliding rail
Block and the mobile cylinder being sequentially connected with sliding block, supporting rack are set on sliding block.
Using the above preferred scheme, it is supported suitable for the product to different length.
As a preferred option, sealing ring is connect by link block with driving cylinder-driven.
Using the above preferred scheme, simple in structure.
As a preferred option, detection components further include：The second air pressure for detecting atmospheric pressure value near sealing ring incudes
Device is equipped with the connecting rod being slidably connected with it on link block, and the second air pressure inductor is set in connecting rod, connecting rod and drive
Dynamic device is sequentially connected, and driving device drive connection bar is slided along the circumferential direction of sealing ring.
Using the above preferred scheme, the atmospheric pressure value on the outside of sealing ring is detected, prevents article putting groove and sealing upper cover
The atmospheric pressure value changing value of the seal cavity of formation is since there are gaps between sealing ring and product opening, and detection is more accurate, accidentally
Rate smaller.
Method for testing tightness is tested using being sealed property of tightness measuring device, specifically includes following steps：
The seal cavity that S1 vacuum extractors are repeatedly formed article putting groove with sealing upper cover vacuumizes, the first air pressure sense
It is M to answer device to detect the air pressure maximum value of the seal cavity1, air pressure minimum M2；
S2 is detached upper cover is sealed with article putting groove, and product is placed on the step surface of supporting rack；
S3 will seal upper cover and will be closed with article putting groove, form closed cavity, driving cylinder driving sealing ring movement, sealing ring will
The opening of product is blocked, and the inside of product is made to form closed cavity；
The seal cavity that S4 vacuum extractors form article putting groove with sealing upper cover vacuumizes, and keeps certain time interval T；
The atmospheric pressure value that S5 the first pressure inductors detect the seal cavity is M0, judge atmospheric pressure value M0Whether in M1With M2
Between, if product does not leak air if, if good in products air tightness.
The method for testing tightness simple operation, testing efficiency is high, and accuracy rate is high.
Method for testing tightness is tested using being sealed property of tightness measuring device, specifically includes following steps：
The seal cavity that S1 vacuum extractors are repeatedly formed article putting groove with sealing upper cover vacuumizes, the first air pressure sense
It is M to answer device to detect the air pressure maximum value of the seal cavity1, air pressure minimum M2；
S2 is detached upper cover is sealed with article putting groove, and product is placed on the step surface of supporting rack；
S3 will seal upper cover and will be closed with article putting groove, form closed cavity, driving cylinder driving sealing ring movement, sealing ring will
The opening of product is blocked, and the inside of product is made to form closed cavity；
The seal cavity that S4 vacuum extractors form article putting groove with sealing upper cover vacuumizes, and keeps certain time interval T；
S5 driving devices drive the second air pressure inductor along the circumferential movement of sealing ring, the detection sealing of the second air pressure inductor
Atmospheric pressure value near circle；
The atmospheric pressure value that S6 the first pressure inductors detect the seal cavity is M0, judge atmospheric pressure value M0Whether in M1With M2
Between,
If not existing, and the atmospheric pressure value of the second air pressure inductor detection does not change, then product leaks air,
If not existing, and the atmospheric pressure value of the second air pressure inductor detection is changing, then the sealing implementations of product need
Again it detects,
If products air tightness is good.
The method for testing tightness simple operation, testing efficiency is high, and accuracy rate is high, prevents the opening because of sealing ring and product
Between generated there are gap accidentally measure.
Description of the drawings
Fig. 1 is the structural schematic diagram of tightness measuring device provided in an embodiment of the present invention.
Fig. 2 is the partial structural diagram in article putting groove provided in an embodiment of the present invention.
Fig. 3 is the partial structural diagram of seal assembly provided in an embodiment of the present invention.
Wherein：1 board, 11 article putting grooves, 12 sealing upper covers, 13 guide posts, 14 lifting cylinders, 15 protective plates, the induction of 16 gratings
Device, 2 seal assemblies, 21 sealing rings, 22 driving cylinders, 23 link blocks, 24 connecting rods, 25 driving devices, 3 positioning components, 31
Supporting rack, 4 vacuum extractors, 5 detection components, 51 first air pressure inductors, 52 second air pressure inductors.
Specific implementation mode
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
In order to reach the purpose of the present invention, in some of embodiments of tightness measuring device,
As illustrated in fig. 1 and 2, tightness measuring device includes：Board 1, seal assembly 2, positioning component 3, vacuum extractor
4, detection components 5.
Board 1, on board 1 be equipped with article putting groove 11, the top of article putting groove 11 be equipped with for being closed article putting groove 11
Seal upper cover 12.Guide post 13 is equipped on board 1, sealing upper cover 12 is slidably connected with guide post 13, seals upper cover 12 and lifting air
14 (not shown) of cylinder is sequentially connected, and the driving sealing upper cover 12 of lifting cylinder 14 is lifted along guide post 13.It is equipped on board 1
Three protective plates 15, three protective plates 15 form working region, and article putting groove 11, guide post 12, sealing upper cover 12 are set to workspace
In domain.The grating sensing device 16 for inductive operation personnel is equipped on 1 table top of board.
Seal assembly 2 includes sealing ring 21 and the driving cylinder 22 with the drive connection of sealing ring 21.Sealing ring 21 passes through
Link block 23 is sequentially connected with driving cylinder 22.Two groups of seal assemblies being oppositely arranged, one group of sealing are equipped in article putting groove 11
The sealing ring 21 of component is rounded, and the sealing ring 21 of another group of seal assembly is rectangular.
Positioning component 3 is set in article putting groove 11, includes the supporting rack 31 equipped with step surface.
Vacuum extractor 4 is set in article putting groove 11, the seal cavity for being formed with sealing upper cover 12 to article putting groove 11
It is vacuumized.
Detection components 5 are set in article putting groove 11, including：First air pressure inductor, 51 (not shown), the first pressure
Inductor 51 is used to detect article putting groove 11 and seals the atmospheric pressure value for the seal cavity that upper cover 12 is formed.
Method for testing tightness is tested using being sealed property of tightness measuring device, specifically includes following steps：
More than 4 seal cavity formed with sealing upper cover 12 to article putting groove 11 of S1 vacuum extractors vacuumizes, and first
The air pressure maximum value that air pressure inductor 51 detects the seal cavity is M1, air pressure minimum M2；
S2 is detached upper cover 12 is sealed with article putting groove 11, product is placed on the step surface of supporting rack 31；
S3 is closed upper cover 12 is sealed with article putting groove 11, forms closed cavity, and driving cylinder 22 drives sealing ring 21 to move,
Sealing ring 21 blocks the opening of product, and the inside of product is made to form closed cavity；
The seal cavity that S4 vacuum extractors form article putting groove 11 with sealing upper cover 12 vacuumizes, and keeps a timing
Between T；
The atmospheric pressure value that the first pressure of S5 inductor 51 detects the seal cavity is M0, judge atmospheric pressure value M0Whether in M1With
M2Between, if product does not leak air if, if good in products air tightness.
The method for testing tightness simple operation, testing efficiency is high, and accuracy rate is high.
A kind of tightness measuring device of the present invention is simple in structure, and product is set on the supporting rack 31 of article putting groove 11, is set
Object slot 11 is closed with sealing upper cover 12, forms the cavity of sealing, driving cylinder 22 drives sealing ring 21 to move, to product opening
It is sealed, interiors of products is made to form the cavity of sealing.Article putting groove 11 is formed with sealing upper cover 12 using vacuum extractor 4
Seal cavity is vacuumized, and the first air pressure inductor 51 is detected the atmospheric pressure value in the seal cavity, judges that it is
It is no within the scope of standard pressure value.To be detected to the sealing performance of product.
Tightness measuring device of the present invention is not necessarily to be inflated during test, reduces security risk, meanwhile, this hair
Bright simple in structure, simple operation, detection efficiency is high, and precision is high.
In order to further optimize the implementation result of the present invention, in other embodiment, remaining feature technology phase
Together, the difference is that, positioning component 3 further includes：Be set to the sliding rail of 11 bottom surface of article putting groove, the sliding block being set on sliding rail with
And the mobile cylinder being sequentially connected with sliding block, supporting rack 31 are set on sliding block.
Using the scheme of above-described embodiment, it is supported suitable for the product to different length.
As shown in figure 3, in order to further optimize the implementation result of the present invention, in other embodiment, remaining
Feature technology is identical, the difference is that, detection components 5 further include：The second gas for detecting atmospheric pressure value near sealing ring 21
Inductor 52 is pressed, the connecting rod 24 being slidably connected with it is equipped on link block 23, the second air pressure inductor 52 is set to connection
On bar 24, connecting rod 24 is sequentially connected with 25 (not shown) of driving device, and 25 drive connection bar 24 of driving device is along sealing
The circumferential sliding of circle 21.
Method for testing tightness is tested using being sealed property of tightness measuring device, specifically includes following steps：
More than 4 seal cavity formed with sealing upper cover 12 to article putting groove 11 of S1 vacuum extractors vacuumizes, and first
The air pressure maximum value that air pressure inductor detects the seal cavity is M1, air pressure minimum M2；
S2 is detached upper cover 12 is sealed with article putting groove 11, product is placed on the step surface of supporting rack 31；
S3 is closed upper cover 12 is sealed with article putting groove 11, forms closed cavity, and driving cylinder 22 drives sealing ring 21 to move,
Sealing ring 21 blocks the opening of product, and the inside of product is made to form closed cavity；
The seal cavity that S4 vacuum extractors form article putting groove 11 with sealing upper cover 12 vacuumizes, and keeps a timing
Between T；
S5 driving devices 25 drive the second air pressure inductor 52 along the circumferential movement of sealing ring 21, the second air pressure inductor 52
Detect the atmospheric pressure value near sealing ring 21；
The atmospheric pressure value that the first pressure of S6 inductor 51 detects the seal cavity is M0, judge atmospheric pressure value M0Whether in M1With
M2Between,
If not existing, and the atmospheric pressure value of the second air pressure inductor 52 detection does not change, then product leaks air,
If not existing, and the atmospheric pressure value of the second air pressure inductor 52 detection is changing, then the sealing implementations of product need
Again it to detect,
If products air tightness is good.
The tightness measuring device and method simple operation are detected the atmospheric pressure value in 21 outside of sealing ring, prevent from setting
The atmospheric pressure value changing value for the seal cavity that object slot 11 and sealing upper cover 12 are formed between sealing ring 21 and product opening due to depositing
In gap, more accurate, error rate smaller is detected, accuracy rate is high.
Novel preferred embodiment, it is noted that for those of ordinary skill in the art, do not departing from this hair
Under the premise of bright concept, various modifications and improvements can be made, these are all within the scope of protection of the present invention.
Claims (6)
1. tightness measuring device, which is characterized in that including：
Board, on the board be equipped with article putting groove, the top of the article putting groove be equipped with for being closed the article putting groove
Seal upper cover；
Seal assembly is set in the article putting groove, including：Sealing ring and the driving gas being sequentially connected with the sealing ring
Cylinder, the sealing ring are connect by link block with the driving cylinder-driven；
Positioning component is set in the article putting groove, including：Supporting rack equipped with step surface；
Vacuum extractor is set in the article putting groove, the seal chamber for being formed with the sealing upper cover to the article putting groove
Body is vacuumized；
Detection components are set in the article putting groove, including：First air pressure inductor, the first air pressure inductor is for examining
The atmospheric pressure value for the seal cavity that the article putting groove is formed with the sealing upper cover is surveyed, the detection components further include：For detecting
Second air pressure inductor of atmospheric pressure value near the sealing ring, is equipped with the connecting rod being slidably connected with it on the link block,
The second air pressure inductor is set in the connecting rod, and the connecting rod is sequentially connected with driving device, the driving dress
Set circumferential direction sliding of the drive connection bar along the sealing ring.
2. tightness measuring device according to claim 1, which is characterized in that guide post is equipped on the board, it is described
Sealing upper cover is slidably connected with the guide post, and the sealing upper cover is sequentially connected with lifting cylinder, and the lifting cylinder drives institute
Sealing upper cover is stated to lift along the guide post.
3. tightness measuring device according to claim 2, which is characterized in that be equipped with multiple protection on the board
Plate, multiple protective plates form working region, and the article putting groove, the guide post, the sealing upper cover are set to the work
In region.
4. tightness measuring device according to claim 1, which is characterized in that be equipped on the board table top for feeling
Answer the grating sensing device of operating personnel.
5. tightness measuring device according to claim 1, which is characterized in that the positioning component further includes：It is set to
The sliding rail of the glove groove bottom, the sliding block being set on the sliding rail and the mobile cylinder being sequentially connected with the sliding block,
Support frame as described above is set on the sliding block.
6. method for testing tightness, which is characterized in that surveyed using being sealed property of tightness measuring device described in claim 1
Examination, specifically includes following steps：
The seal cavity that S1 vacuum extractors are repeatedly formed article putting groove with sealing upper cover vacuumizes, the first air pressure inductor
The air pressure maximum value for detecting the seal cavity is M1, air pressure minimum M2；
S2 is detached upper cover is sealed with article putting groove, and product is placed on the step surface of supporting rack；
S3 will seal upper cover and article putting groove and be closed, and form closed cavity, driving cylinder driving sealing ring movement, and sealing ring is by product
Opening block, make product inside formed closed cavity；
The seal cavity that S4 vacuum extractors form article putting groove with sealing upper cover vacuumizes, and keeps certain time interval T；
S5 driving devices drive the second air pressure inductor along the circumferential movement of sealing ring, and it is attached that the second air pressure inductor detects sealing ring
Close atmospheric pressure value；
The atmospheric pressure value that S6 the first air pressure inductors detect the seal cavity is M0, judge atmospheric pressure value M0Whether in M1With M2Between,
If not existing, and the atmospheric pressure value of the second air pressure inductor detection does not change, then product leaks air,
If not existing, and the atmospheric pressure value of the second air pressure inductor detection is changing, then the sealing implementations of product need again
Detection,
If products air tightness is good.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089168.3A CN105628310B (en) | 2016-02-17 | 2016-02-17 | Tightness measuring device and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089168.3A CN105628310B (en) | 2016-02-17 | 2016-02-17 | Tightness measuring device and test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105628310A CN105628310A (en) | 2016-06-01 |
| CN105628310B true CN105628310B (en) | 2018-09-14 |
Family
ID=56043449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610089168.3A Expired - Fee Related CN105628310B (en) | 2016-02-17 | 2016-02-17 | Tightness measuring device and test method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105628310B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389279A (en) * | 2017-08-29 | 2017-11-24 | 颍上县金晨阳工贸有限公司 | A kind of basketball inflator with gas leakage detection function |
| CN107449566A (en) * | 2017-08-30 | 2017-12-08 | 上海奥林汽车安全系统有限公司 | A kind of leakage detection apparatus for air mass sensor |
| CN107702870B (en) * | 2017-11-07 | 2019-12-17 | 苏州富强科技有限公司 | sealing performance detection method for sealing structure |
| CN108871701A (en) * | 2018-07-16 | 2018-11-23 | 博众精工科技股份有限公司 | Product specific position air-tightness detection device and air-tightness detection method |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE189059T1 (en) * | 1994-03-21 | 2000-02-15 | Josef Messmann Gmbh | METHOD AND DEVICE FOR TESTING POROUS PIPES OR THE LIKE. FOR TIGHTNESS AND PROCEDURE THEREOF |
| CN1707235A (en) * | 2004-06-04 | 2005-12-14 | 精碟科技股份有限公司 | Gas leakage detector |
| CN201051040Y (en) * | 2007-01-31 | 2008-04-23 | 丹东热工仪表有限公司 | Leakage detection device |
| CN201909706U (en) * | 2011-01-11 | 2011-07-27 | 兰州威立雅水务(集团)有限责任公司 | Leakproof tightness detector |
| CN202083533U (en) * | 2011-06-17 | 2011-12-21 | 楚天科技股份有限公司 | Device for detecting tightness of container |
| CN203224338U (en) * | 2013-04-28 | 2013-10-02 | 上海聚东新能源科技有限公司 | Apparatus for detecting seal performance of weldment |
| CN203287167U (en) * | 2013-05-16 | 2013-11-13 | 浙江银轮机械股份有限公司 | Dry test equipment for sealing performance of oil cooler |
| CN104697714B (en) * | 2015-02-13 | 2017-03-15 | 金华市志能科技有限公司 | A kind of vacuum leak hunting and closing device, vacuum leak hunting and mouth-sealing method |
| CN205607613U (en) * | 2016-02-17 | 2016-09-28 | 亿和精密工业（苏州）有限公司 | Tightness test device |
-
2016
- 2016-02-17 CN CN201610089168.3A patent/CN105628310B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105628310A (en) | 2016-06-01 |
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