CN111473926A - Manifold airtightness detection device - Google Patents
Manifold airtightness detection device Download PDFInfo
- Publication number
- CN111473926A CN111473926A CN202010280334.4A CN202010280334A CN111473926A CN 111473926 A CN111473926 A CN 111473926A CN 202010280334 A CN202010280334 A CN 202010280334A CN 111473926 A CN111473926 A CN 111473926A
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- China
- Prior art keywords
- manifold
- detection apparatus
- airtightness detection
- positioning
- storage tank
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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
- G01M3/28—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2807—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
- G01M3/2815—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 for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
-
- 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
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/06—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool
- G01M3/08—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point by observing bubbles in a liquid pool for pipes, cables or tubes; for pipe joints or seals; for valves; for welds
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention belongs to the field of equipment for testing the air tightness of a manifold by observing bubbles in a liquid pool, and particularly relates to manifold air tightness detection equipment. The problem of manifold gas tightness detection inefficiency among the prior art has been solved to this scheme.
Description
Technical Field
The invention belongs to the field of equipment for testing the air tightness of a manifold by observing bubbles in a liquid pool, and particularly relates to manifold air tightness detection equipment.
Background
The manifold is a gas pipe applied to a fuel engine, and the requirement for airtightness is very high. Thus, the manifold needs to be tested for hermeticity after the manufacturing process is complete. The existing manifold is provided with two symmetrically distributed pipelines, the whole manifold is provided with three openings with larger pore diameters, the three openings are respectively distributed at two ends and the middle part of the manifold, and the planes of the three openings are not coplanar. The existing detection mode is mainly to seal each opening of the manifold and then measure the pressure change of the gas after introducing the gas with certain pressure, thereby judging the gas tightness of the manifold. When the evaluation of leakage occurs during the air tightness detection of the manifold, the leakage condition needs to be rechecked, and the condition causing misjudgment is avoided from affecting the qualification rate of the product. After the manifold is detected in the prior art, the manifold needs to be taken down after the evaluation of leakage occurs, and then recheck is performed on another device, so that the manifold needs to be disassembled and assembled once more, and another recheck device needs to be arranged, which reduces the detection efficiency of the manifold, and enterprises need to configure more devices, thereby increasing the production cost of the enterprises.
Disclosure of Invention
The invention aims to provide manifold airtightness detection equipment to solve the problem of low manifold airtightness detection efficiency in the prior art.
In order to achieve the purpose, the basic scheme of the invention provides manifold air tightness detection equipment which comprises a rack, wherein a positioning clamp is connected to the rack, a plug group for sealing a manifold is connected to the rack, an inflating device is connected to the rack, an inflating pipe for inflating the manifold is connected to the inflating device, a water storage tank with an opening at the upper end is vertically and slidably connected to the rack, the water storage tank is vertically and slidably connected to the rack, the positioning clamp can be immersed in the water storage tank by moving the water storage tank upwards, and a driving mechanism for driving the water storage tank to move is connected to the rack.
The principle and the beneficial effect of the basic scheme are as follows: the manifold is positioned through the positioning fixture, the opening of the manifold is plugged in and out through the plug group, meanwhile, the inflation tube is communicated with the inside of the manifold, the manifold is inflated through the inflation tube by the inflation device, gas with certain pressure intensity is generated in the manifold, the pressure intensity change of the gas in the manifold can be detected through the pressure measuring device on the inflation device, and therefore the result of whether the manifold leaks can be obtained. The arrangement of the inflation device, the plug and the inflation tube enables the manifold to firstly detect the gas pressure, so that the detection efficiency of the gas tightness of the manifold can be improved, the water storage tank can be used for confirming the manifold again in a manner of immersing water immediately when the gas tightness problem occurs in the gas pressure detection link, the manifold does not need to be taken again and positioned, and the detection efficiency of the manifold is improved; meanwhile, a manifold immersion water detection device does not need to be independently arranged, and the equipment cost of an enterprise is reduced.
Further, the frame includes horizontal backup pad, and the backup pad is located positioning fixture's downside, and the vertical projection of backup pad is located the upper end of storage water tank and opens mouthful, makes the backup pad submerge in the storage water tank. The positioning clamp is supported by the supporting plate, so that the placing space around the positioning clamp can be enlarged, and an operator can conveniently perform detection operation; simultaneously, the backup pad can shelter from the space of positioning fixture downside, avoids the manifold directly to drop into the storage water tank and increase extra work burden.
Further, the positioning fixture is detachably connected with the supporting plate. The mode of detachable connection is adopted, and the positioning fixture is convenient to maintain, replace and the like.
Further, positioning fixture includes the support, be equipped with two fixture that fix the manifold tip on the support, every fixture all includes location supporting part and removal portion, and removal portion sets up with the location supporting part relatively, location supporting part and support quiet connection, removal portion and support swing joint. The end part of the manifold is clamped and fixed through the relative movement of the moving part and the positioning support part, so that the positioning of the manifold is realized.
Further, the moving part is connected with the bracket through a linear telescopic mechanism. The moving part and the support are connected through the linear telescopic mechanism, so that the moving part can move linearly under the action of the linear telescopic mechanism, and the manifold can be clamped and operated quickly by the moving part conveniently.
Further, the extension and retraction direction of the linear extension and retraction mechanism is parallel to the direction of the central line of the end opening of the manifold. Through the arrangement, when the linear telescopic mechanism drives the moving part to clamp and fix the end part of the manifold, the direction of the acting force applied by the moving part on the manifold is parallel to the axial direction of the end part of the manifold, so that the end part of the manifold is mainly stressed in the axial direction, the rigidity of the end part of the manifold in the axial direction is high, the high acting force can be borne, and the situation that the manifold is deformed by the moving part when the manifold is clamped and fixed to influence the subsequent use of the manifold is avoided.
Further, the linear telescopic mechanism is an air cylinder. The cylinder is selected as the linear telescopic mechanism, and the cylinder is driven by pressure gas, so that the cylinder can realize quick telescopic movement, and the quick movement of the moving part is convenient to realize.
Further, the plug group comprises an end plug for plugging the end of the manifold, and the end plug is statically connected with the moving part. The end plug blocks the end opening of the manifold under the action of the moving part, so that the acting force applied by the moving part directly acts on the manifold through the end plug, and the sealing effect of the end plug on the end opening of the manifold is improved.
Further, the moving part is located obliquely above the positioning support part. The location supporting part is located the oblique below of removal portion, then, the manifold can directly shelve on the location supporting part and can not take place to remove under the effect of gravity, thereby conveniently fix a position the manifold and place the operation, and simultaneously, the removal portion removes in the oblique top of location supporting part, when the removal portion keeps away from the location supporting part under the shrink effect of cylinder, make the removal portion skew location supporting part directly over, thereby made things convenient for the manifold to get from the top of location supporting part and put the operation, avoided the removal portion to get the interference when putting the manifold.
Further, the driving mechanism is a hydraulic cylinder. The drive power of pneumatic cylinder is bigger, conveniently drives the quick removal of storage water tank.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the manifold airtightness detection apparatus according to the present invention;
fig. 2 is a perspective view of the positioning jig of fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a manifold A, a bottom plate 1, a first mounting block 2, a supporting block 3, a second mounting block 4, a cylinder 5, an end plug 6, a mandril 7, a stop block 8, an air inlet pipe 9, a third mounting block 10, a transverse cylinder 11, a middle plug 12, a frame 13, a supporting plate 14, an inflation pipe 15, a water storage tank 16, a hydraulic cylinder 17 and an inflation device 18.
The embodiment is basically as shown in the attached figure 1: the manifold airtightness detection device comprises a rack 13, wherein the rack 13 comprises a rack body and a support plate 14, and the support plate 14 is transversely welded on the rack body. A water storage tank 16 with an open upper end is connected to the frame 13 in a vertical sliding mode, the water storage tank 16 is located right below the supporting plate 14, and a vertical projection plane of the supporting plate 14 is located inside the water storage tank 16. A driving mechanism is mounted on the frame 13, in this embodiment, the driving mechanism is preferably a hydraulic cylinder 17, the lower end of the hydraulic cylinder 17 is connected with the frame 13 through a bolt, and the upper end of the hydraulic cylinder 17 is connected with the water storage tank 16 through a bolt.
As shown in fig. 2, a positioning fixture is mounted on the upper side of the supporting plate 14, the positioning fixture includes a bracket, the bracket includes a rectangular bottom plate 1, the bottom plate is connected with the supporting plate 14 through bolts, and two ends of the bottom plate 1 are respectively provided with a clamping mechanism. The clamping mechanism comprises a positioning supporting portion and a moving portion, the positioning supporting portion comprises a supporting block 3, a vertical first mounting block 2 is welded on the bottom plate 1, the supporting block 3 is connected to the first mounting block 2 through a bolt, and a flexible gasket is fixedly bonded on a supporting surface of the supporting block 3. The bottom plate 1 is connected with a second mounting block 4 through a bolt, the second mounting block 4 is connected with a linear telescopic mechanism through a bolt, the telescopic direction of the linear telescopic mechanism is parallel to the central line direction of the end opening of the manifold, in the embodiment, the linear telescopic mechanism is preferably an air cylinder 5, the air cylinder 5 is obliquely arranged, the moving part is fixed at the moving end of the air cylinder 5 through a bolt, the moving part is located obliquely above the positioning support part, and the moving part can move relative to the positioning support part under the action of the air cylinder 5. An end plug 6 is fixedly bonded to the moving portion, and the moving portion plugs the end opening of the manifold through the end plug 6.
The bottom plate 1 is connected with a third mounting block 10 through a bolt, the third mounting block 10 is connected with a transverse cylinder 11 through a bolt, and a middle plug 12 is fixedly bonded at the moving end of the transverse cylinder 11. An air inlet pipe 9 is connected to the middle plug 12, and one end of the air inlet pipe 9 penetrates through the middle plug 12 and is flush with the plugging surface of the middle plug 12. The position, opposite to the middle plug 12, on the bottom plate 1 is connected with a stop block 8 through a bolt, so that the middle plug 12 and the stop block 8 form a clamping effect on the middle part of the manifold. The stop block 8 is in threaded connection with a transverse ejector rod 7, and the axial direction of the ejector rod 7 is parallel to the moving direction of the middle plug 12.
An air charging device 18 is installed on the frame 13, an air charging pipe 15 is connected between the air charging device 18 and the air inlet pipe, and the air charging device 18 comprises an air pressure detector.
The specific implementation process is as follows: before the manifold A is positioned, the air cylinder 5 and the transverse air cylinder 11 on the second mounting block 4 are both in a contraction state, so that the distance between the end part plug 6 and the positioning support part is larger, and the distance between the middle part plug 12 and the stop block 8 is larger. The manifold A is placed on the positioning support part, and is in a static state by the aid of the support of the positioning support part, at the moment, the end opening of the manifold A is opposite to the end plug 6, the middle opening of the manifold A is opposite to the middle plug 12, and the middle of the manifold A is in contact with the stop block 8 or the ejector rod 7. And then controlling the air cylinder 5 on the second mounting block 4 to drive the moving part to move towards the corresponding positioning support part, so that the moving part drives the end plug 6 to abut against the end opening of the manifold A, thereby clamping and fixing the end of the manifold A through the moving part and the positioning support part, and simultaneously plugging the end opening of the manifold A by the end plug 6. Then, the transverse cylinder 11 is controlled to drive the middle plug 12 to move towards the middle opening of the manifold A, so that the middle plug 12 and the stop block 8 clamp and fix the middle of the manifold A together, the middle plug 12 plugs the middle opening of the manifold A, and at the moment, the air inlet pipe 9 is communicated with the pipeline of the manifold A through the middle opening of the manifold A.
During detection, the inflation device 18 feeds gas with certain pressure into the gas inlet pipe 9 through the inflation pipe 15, the change of the gas pressure in the manifold can be known through a gas pressure detector on the inflation device 18, if the gas tightness of the manifold is good, the gas pressure detector can display that the gas pressure in the manifold is in a reasonable range, and if the gas tightness of the manifold is in a problem, the gas pressure detector can display that the pressure changes, so that the gas tightness of the manifold is judged to be unqualified preliminarily. Then, the hydraulic cylinder 17 drives the water storage tank 16 to move upwards, so that the positioning clamp is immersed in water in the water storage tank 16, and whether bubbles emerge around the manifold is observed, and the air tightness problem of the manifold can be rechecked and confirmed. After the detection is finished, the air cylinder 5 and the transverse air cylinder 11 on the second mounting block 4 are controlled to contract, so that the manifold A loses the clamped effect, and the manifold A is conveniently taken out of the clamp.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. Manifold gas tightness check out test set, including the frame, be connected with positioning fixture in the frame, be connected with in the frame and carry out the end cap group sealed to the manifold, be connected with aerating device in the frame, aerating device is last to be connected with and to give the gas tube of manifold gas filled, its characterized in that: the water storage tank is connected with the upper end opening on the rack in a vertical sliding mode, the water storage tank is connected with the rack in a vertical sliding mode, the positioning clamp can be immersed in the water storage tank by moving the water storage tank upwards, and the rack is connected with a driving mechanism for driving the water storage tank to move.
2. The manifold airtightness detection apparatus according to claim 1, wherein: the frame includes horizontal backup pad, and the backup pad is located positioning fixture's downside, and the vertical projection of backup pad is located the upper end of storage water tank and opens mouthful, makes the backup pad submergence to the storage water tank in.
3. The manifold airtightness detection apparatus according to claim 2, wherein: the positioning fixture is detachably connected with the supporting plate.
4. The manifold airtightness detection apparatus according to claim 3, wherein: the positioning fixture comprises a support, two clamping mechanisms for fixing the end parts of the manifolds are arranged on the support, each clamping mechanism comprises a positioning supporting part and a moving part, the moving parts are arranged opposite to the positioning supporting parts, the positioning supporting parts are statically connected with the support, and the moving parts are movably connected with the support.
5. The manifold airtightness detection apparatus according to claim 4, wherein: the moving part is connected with the bracket through a linear telescopic mechanism.
6. The manifold airtightness detection apparatus according to claim 5, wherein: the extension and retraction direction of the linear extension and retraction mechanism is parallel to the direction of the central line of the end opening of the manifold.
7. The manifold airtightness detection apparatus according to claim 6, wherein: the linear telescopic mechanism is a cylinder.
8. The manifold airtightness detection apparatus according to claim 7, wherein: the end plug group comprises an end plug for plugging the end of the manifold, and the end plug is statically connected with the moving part.
9. The manifold airtightness detection apparatus according to claim 8, wherein: the moving part is positioned obliquely above the positioning support part.
10. The manifold airtightness detection apparatus according to claim 9, wherein: the driving mechanism is a hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010280334.4A CN111473926A (en) | 2020-04-10 | 2020-04-10 | Manifold airtightness detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010280334.4A CN111473926A (en) | 2020-04-10 | 2020-04-10 | Manifold airtightness detection device |
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| CN111473926A true CN111473926A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010280334.4A Pending CN111473926A (en) | 2020-04-10 | 2020-04-10 | Manifold airtightness detection device |
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| CN (1) | CN111473926A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964424A (en) * | 2021-02-01 | 2021-06-15 | 江西樟树市福铃内燃机配件有限公司 | Pipeline damage detection equipment for internal combustion engine exhaust manifold |
| CN113932981A (en) * | 2021-10-25 | 2022-01-14 | 鑫磊压缩机股份有限公司 | A gas storage tank pressure tester |
| CN114354077A (en) * | 2021-12-22 | 2022-04-15 | 重庆溯联汽车零部件有限公司 | New energy automobile cooling head gas tightness detects uses anchor clamps |
| CN115717966A (en) * | 2022-11-29 | 2023-02-28 | 南京知行管业有限公司 | Air tightness detection device and method for corrugated pipe |
| CN118190292A (en) * | 2024-04-22 | 2024-06-14 | 深圳市希立仪器设备有限公司 | Air tightness detection equipment using air cylinder |
| CN118424608A (en) * | 2024-05-09 | 2024-08-02 | 南京优耐特精密机械制造有限公司 | Foundry goods gas tightness detection device |
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| US7155961B2 (en) * | 2004-06-04 | 2007-01-02 | Senior Operations, Inc. | Bleed leak detection system |
| CN104792477A (en) * | 2015-04-11 | 2015-07-22 | 成都陵川特种工业有限责任公司 | Exhaust manifold airtightness detection method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964424A (en) * | 2021-02-01 | 2021-06-15 | 江西樟树市福铃内燃机配件有限公司 | Pipeline damage detection equipment for internal combustion engine exhaust manifold |
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| CN113932981A (en) * | 2021-10-25 | 2022-01-14 | 鑫磊压缩机股份有限公司 | A gas storage tank pressure tester |
| CN114354077A (en) * | 2021-12-22 | 2022-04-15 | 重庆溯联汽车零部件有限公司 | New energy automobile cooling head gas tightness detects uses anchor clamps |
| CN114354077B (en) * | 2021-12-22 | 2024-05-24 | 重庆溯联汽车零部件有限公司 | Clamp for detecting air tightness of cooling head of new energy automobile |
| CN115717966A (en) * | 2022-11-29 | 2023-02-28 | 南京知行管业有限公司 | Air tightness detection device and method for corrugated pipe |
| CN115717966B (en) * | 2022-11-29 | 2024-06-04 | 南京知行管业有限公司 | Bellows air tightness detection device and method |
| CN118190292A (en) * | 2024-04-22 | 2024-06-14 | 深圳市希立仪器设备有限公司 | Air tightness detection equipment using air cylinder |
| CN118424608A (en) * | 2024-05-09 | 2024-08-02 | 南京优耐特精密机械制造有限公司 | Foundry goods gas tightness detection device |
| CN118424608B (en) * | 2024-05-09 | 2024-10-22 | 南京优耐特精密机械制造有限公司 | Foundry goods gas tightness detection device |
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Application publication date: 20200731 |