CN207095790U - Junction block sintered part air tightness checking device - Google Patents
Junction block sintered part air tightness checking device Download PDFInfo
- Publication number
- CN207095790U CN207095790U CN201720881754.1U CN201720881754U CN207095790U CN 207095790 U CN207095790 U CN 207095790U CN 201720881754 U CN201720881754 U CN 201720881754U CN 207095790 U CN207095790 U CN 207095790U
- Authority
- CN
- China
- Prior art keywords
- rubber sheet
- sheet gasket
- test specimen
- support
- pressing plate
- 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.)
- Withdrawn - After Issue
Links
- 239000001307 helium Substances 0.000 claims abstract description 23
- 229910052734 helium Inorganic materials 0.000 claims abstract description 23
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 10
- 238000009434 installation Methods 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 239000004519 grease Substances 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model proposes a kind of junction block sintered part air tightness checking device, it is desirable to provide a kind of sealing effectiveness is more preferable, can reduce the air tightness checking device of the damage to equipment.The utility model is achieved by following technical proposals：Support is placed in fulcrum bearing pilot hole by the 3rd rubber sheet gasket；Tested test specimen is placed in the shaft end stepped hole of support by the second rubber sheet gasket；Locking nut（2）Be spirally connected fulcrum bearing, uses adjusting nut（1）The first rubber sheet gasket is compressed to seal the air inlet of tested test specimen；Pressing plate（3）Cover on tested test specimen and rubber sheet gasket and support pressure tightening seal are detected test specimen, the port of tested test specimen is sealed by the height of adjusting nut and locking nut cooperation the first rubber sheet gasket of tune, helium spray gun sprays helium by the hole on pressing plate, detect the test specimen whether gas leakage.A kind of special-shaped air tightness checking device, including adjusting nut, locking nut, pressing plate, support, the rubber sheet gasket of fulcrum bearing and three kinds of specifications.
Description
Technical field
It the utility model is related to a kind of junction block sintered part air tightness checking device.
Background technology
Being now widely used for all trades and professions such as motor cylinder block, piston, oil, colliery, sebific duct, pressure gauge, air accumulator needs
The place for carrying out gas boosting and air-tight test is required for carrying out airtight test.Which kind of in general, no matter filled using
Preparing gas is put, before complexes assembling finishes and loads reactant, it is necessary to the air-tightness of check device, to ensure experiment
It is smoothed out.
In the tested test specimen 9 of the prior art miniaturization vibration cylinder pressure transducer shown in Fig. 3, junction block and lead 10
The sintered location that 4 are enclosed with bobbin winder base center stepped profile is needed to carry out airtight test after sintering, because junction block has a L-shaped
Hole so that check that the air-tightness at sintering becomes complicated.What is used at present is to the junction block airtight test method after sintering
Junction block test specimen is bonded by gasket seal with fulcrum bearing, to use vacuum silicon grease, the end of L-shaped through hole is sealed with plasticine
Mouthful, then hunted leak with helium mass spectrometer leak detector.That gas leakage is easy in leak detection in place of the deficiencies in the prior art, efficiency compared with
It is low, have the danger being extracted into plasticine in equipment, and equipment component is distinctly claimed does not allow vacuum silicon grease.
The utility model is the further development and improvement to prior art.
The content of the invention
The purpose of this utility model is in view of the above-mentioned problems of the prior art, more preferable, the energy that provides a kind of sealing effectiveness
Enough reduce the junction block sintered part air tightness checking device of the damage to equipment.
In order to achieve the above object, the utility model provides a kind of junction block sintered part air tightness checking device, including
Adjusting nut 1, locking nut 2, pressing plate 3, the first rubber sheet gasket 4, the second rubber sheet gasket 5, support 6, the 3rd rubber sheet gasket 7 and phase
The even fulcrum bearing 8 of the working chamber of helium mass spectrometer leak detector, it is characterised in that：Support 6 is placed in fulcrum bearing 8 by the 3rd rubber sheet gasket 7
In pilot hole；Tested test specimen 9 is placed in the shaft end stepped hole of support 6 by the second rubber sheet gasket 5；Locking nut 2 is spirally connected supporting
Seat 8, the first rubber sheet gasket 4 is compressed with adjusting nut 1 to seal the air inlet of tested test specimen 9；Pressing plate 3 is covered on tested test specimen 9
Rubber sheet gasket 4 and support 6 are compressed into the tested test specimen of sealing, is coordinated by adjusting nut 1 and locking nut 3 and adjusts the first rubber sheet gasket
4 height, the port for sealing tested test specimen 9, helium spray gun sprays helium by the hole on pressing plate 3, whether detects the test specimen
Gas leakage.
The utility model has the advantages that compared to prior art：
Good airproof performance.The utility model is by the way of the cooperation of adjusting nut, pressing plate and gasket seal come sealed test piece end
Mouthful, pressed using locking nut and fulcrum bearing threaded connection by the way of pressing plate and support also so that part bottom surface is bonded with workpiece
It is closer.
The utility model is connected by fulcrum bearing 8 with the working chamber of helium mass spectrometer leak detector, and sealing is played using rubber sheet gasket
Effect, realized by the threaded connection between locking nut 2 and fulcrum bearing 8 come pressing plate 3 and support 6 and compress test specimen.By adjusting spiral shell
The cooperation of mother 1 and locking nut 3 can adjust the height of the first rubber sheet gasket 4, and seal the port of tested test specimen well, reach
Sealing purpose.Helium is sprayed by the hole on pressing plate 3 with helium spray gun, with detect the test specimen whether gas leakage, on equipment without influence,
The mode of script plasticine or vacuum silicon grease sealing is changed, eliminates the harm of plasticine and vacuum silicon grease to equipment.
The utility model can be detected position outside air admission hole play good sealing function, can avoid the occurrence of because
The test specimen after sintering is caused to be judged to the underproof situation of air-leakage test for poor sealing.For other homogenous configuration products
Leak detection there is reference.
Brief description of the drawings
Fig. 1 is the organigram of the utility model junction block sintered part air tightness checking device.
Fig. 2 is Fig. 1 decomposing schematic representation.
Fig. 3 is that the junction block of prior art miniaturization vibration cylinder pressure transducer and the air-tightness position after lead sintering are examined
Look into schematic diagram.
Fig. 4 is Fig. 3 top view.
In figure：1 adjusting nut, 2 locking nuts, 3 pressing plates, 4 first rubber sheet gaskets, 5 second rubber sheet gaskets, 6 supports, 7
Three rubber sheet gaskets, 8 fulcrum bearings, 9 tested test specimens.
Embodiment
Refering to Fig. 2, Fig. 3.In embodiment described below, a kind of junction block sintered part air tightness checking device, including
Adjusting nut 1, locking nut 2, pressing plate 3, the first rubber sheet gasket 4, the second rubber sheet gasket 5, support 6, the 3rd rubber sheet gasket 7 and phase
The even fulcrum bearing 8 of the working chamber of helium mass spectrometer leak detector.Support 6 is placed in the pilot hole of fulcrum bearing 8 by the 3rd rubber sheet gasket 7；Quilt
Part 9 is inspected to be placed in the shaft end stepped hole of support 6 by the second rubber sheet gasket 5；Locking nut 2 is spirally connected fulcrum bearing 8, with regulation spiral shell
Mother 1 compresses the first rubber sheet gasket 4 to seal the air inlet of tested test specimen 9；Pressing plate 3 is covered on the He of rubber sheet gasket 4 on tested test specimen 9
Support 6 compresses the tested test specimen of sealing, and the height for adjusting the first rubber sheet gasket 4 is coordinated by adjusting nut 1 and locking nut 3, envelope
Firmly be detected the port of test specimen 9, helium spray gun sprays helium by the hole on pressing plate 3, detect the test specimen whether gas leakage.A kind of abnormity
Air tightness checking device, including adjusting nut 1, locking nut 2, pressing plate 3, support 6, the rubber of fulcrum bearing 8 and three kind of specification
Pad.
Further, come sealed test piece port by the way of the cooperation of adjusting nut, pressing plate 3 and gasket seal, using lock
Tight nut 2 is threadedly coupled with fulcrum bearing to press the mode of pressing plate and support also so that part bottom surface is bonded with workpiece.
Further, realized by the threaded connection between locking nut 2 and fulcrum bearing 8 come pressing plate 3 and support 6 and compress examination
Part.
Further, by adjusting the cooperation of nut 1 and locking nut 3 to adjust the height of the first rubber sheet gasket 4, seal by
Inspect the port of part.
Fulcrum bearing 8 is arranged on helium mass spectrometer leak detector；It is placed in after support 6 is installed together with the 3rd rubber sheet gasket 7
In fulcrum bearing 8；It is placed in after the tested rubber sheet gasket 5 of test specimen 9 and second is installed together on support 6；First rubber sheet gasket 4 is pacified
On pressing plate 3；Pressing plate 3 is covered on tested test specimen 9；The pressing plate 3 of locking nut 2 and support 6, are connected through a screw thread with fulcrum bearing 8
Screw together；The first rubber sheet gasket 4 is compressed with adjusting nut 1 to seal the air inlet of tested test specimen 9.Passed through with helium spray gun
Tested position jet from hole on pressing plate 3 to tested test specimen 9, by helium mass spectrometer leak detector judge tested test specimen 9 whether gas leakage.
It is position junction block sintered part air-tightness shown in detection Fig. 1, it is necessary to which the air inlet of junction block is closed, by adjusting spiral shell
Mother 1 presses the first rubber sheet gasket 4 to reach the purpose of sealing air inlet.To prevent the other contacts site of product and fixture from leaking air
Problem, sealing purpose is reached using the second rubber sheet gasket 5 and the 3rd rubber sheet gasket 7.Then, by the hole on pressing plate 3 to quilt
Inspect part 9 and spray helium, helium can not enter the work of helium mass spectrometer leak detector by the air inlet and other positions for being detected test specimen 9
Chamber, the purpose of inspection junction block sintered part air-tightness is reached with this.If helium mass spectrometer leak detector detects gas leakage, wiring is proved
Seat sintered part airtight test is unqualified, conversely, then proving that products air tightness is qualified.
Claims (5)
1. a kind of junction block sintered part air tightness checking device, including adjusting nut（1）, locking nut（2）, pressing plate（3）, first
Rubber sheet gasket（4）, the second rubber sheet gasket（5）, support（6）, the 3rd rubber sheet gasket（7）With the working chamber for the helium mass spectrometer leak detector that is connected
Fulcrum bearing（8）, it is characterised in that：Support（6）Pass through the 3rd rubber sheet gasket（7）It is placed in fulcrum bearing（8）In pilot hole；Inspected
Part（9）Pass through the second rubber sheet gasket（5）It is placed in support（6）Shaft end stepped hole in；Locking nut（2）Be spirally connected fulcrum bearing（8）, use
Adjusting nut（1）Compress the first rubber sheet gasket（4）To seal tested test specimen（9）Air inlet；Pressing plate（3）Cover on tested test specimen
（9）On, the first rubber sheet gasket（4）And support（6）The tested test specimen of sealing is compressed, passes through adjusting nut（1）And locking nut（2）Match somebody with somebody
Close and adjust the first rubber sheet gasket（4）Height, seal tested test specimen（9）Port, helium spray gun passes through pressing plate（3）On hole come
Spray helium, detect the test specimen whether gas leakage.
2. junction block sintered part air tightness checking device as claimed in claim 1, it is characterised in that using adjusting nut, pressure
Plate（3）The mode coordinated with gasket seal comes sealed test piece port, using locking nut（2）Pressed with fulcrum bearing threaded connection
The mode of pressing plate and support also causes part bottom surface to be bonded with workpiece.
3. junction block sintered part air tightness checking device as claimed in claim 1, it is characterised in that pass through locking nut（2）
And fulcrum bearing（8）Between threaded connection carry out pressing plate（3）And support（6）Realize and compress test specimen.
4. junction block sintered part air tightness checking device as claimed in claim 1, it is characterised in that by adjusting nut（1）With
Locking nut（2）Cooperation can adjust the first rubber sheet gasket（4）Height, seal the port of tested test specimen.
5. junction block sintered part air tightness checking device as claimed in claim 1, it is characterised in that by fulcrum bearing（8）Installation
On helium mass spectrometer leak detector；By support（6）With the 3rd rubber sheet gasket（7）Fulcrum bearing is placed in after being installed together（8）On；Will be tested
Test specimen（9）With the second rubber sheet gasket（5）Support is placed in after being installed together（6）On；By the first rubber sheet gasket（4）Installed in pressing plate
（3）On；Pressing plate（3）Cover on tested test specimen（9）On；Locking nut（2）Pressing plate（3）And support（6）, with fulcrum bearing（8）Pass through spiral shell
Line, which links together, to be screwed；Use adjusting nut（1）Compress the first rubber sheet gasket（4）To seal tested test specimen（9）Air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720881754.1U CN207095790U (en) | 2017-07-20 | 2017-07-20 | Junction block sintered part air tightness checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720881754.1U CN207095790U (en) | 2017-07-20 | 2017-07-20 | Junction block sintered part air tightness checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207095790U true CN207095790U (en) | 2018-03-13 |
Family
ID=61545650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720881754.1U Withdrawn - After Issue CN207095790U (en) | 2017-07-20 | 2017-07-20 | Junction block sintered part air tightness checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207095790U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282949A (en) * | 2017-07-20 | 2019-01-29 | 成都凯天电子股份有限公司 | Special-shaped junction block air tightness checking device |
| CN109738129A (en) * | 2019-01-09 | 2019-05-10 | 成都凯天电子股份有限公司 | The method for detecting conduit tube component air-tightness |
| CN110146229A (en) * | 2019-06-17 | 2019-08-20 | 蚌埠兴创电子科技有限公司 | A kind of leak detection apparatus of metal and glass sintering |
-
2017
- 2017-07-20 CN CN201720881754.1U patent/CN207095790U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109282949A (en) * | 2017-07-20 | 2019-01-29 | 成都凯天电子股份有限公司 | Special-shaped junction block air tightness checking device |
| CN109282949B (en) * | 2017-07-20 | 2024-01-12 | 成都凯天电子股份有限公司 | Special-shaped wire holder air tightness inspection device |
| CN109738129A (en) * | 2019-01-09 | 2019-05-10 | 成都凯天电子股份有限公司 | The method for detecting conduit tube component air-tightness |
| CN109738129B (en) * | 2019-01-09 | 2024-03-26 | 成都凯天电子股份有限公司 | Method for detecting air tightness of conduit assembly |
| CN110146229A (en) * | 2019-06-17 | 2019-08-20 | 蚌埠兴创电子科技有限公司 | A kind of leak detection apparatus of metal and glass sintering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20240112 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180313 Effective date of abandoning: 20240112 |