CN105699017A - Leak hunting device for multi-hole workpiece - Google Patents
Leak hunting device for multi-hole workpiece Download PDFInfo
- Publication number
- CN105699017A CN105699017A CN201610163973.6A CN201610163973A CN105699017A CN 105699017 A CN105699017 A CN 105699017A CN 201610163973 A CN201610163973 A CN 201610163973A CN 105699017 A CN105699017 A CN 105699017A
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- Prior art keywords
- workpiece
- drainage
- water
- storage tank
- leak
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Links
- 238000003860 storage Methods 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 47
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000005587 bubbling Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 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 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010959 steel Substances 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
- G01M3/04—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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention provides a leak hunting device for amulti-hole workpiece with the characteristic of rapid water level lifting. The leak hunting device comprises a water storage tank, a ventilation mechanism, a sealing assembly and a drainage mechanism. The drainage mechanism consists of a lifting unit and a drainage block arranged in the water storage tank; and the lifting unit drives the drainage block to lift. The ventilation mechanism includes a breather pipe connected with a workpiece in a sealing mode. And the sealing assembly is used for sealing the workpiece. The leak hunting device has the following beneficial effects: the structure is simple and no complicated pipeline and electrical system are needed; the lifting unit drives the drainage block to lift to change the water level rapidly without the need to add water into the water tank or drain away water, so that the leak hunting work efficiency is substantially improved and the detection time is saved; A water supply and drainage system is saved, so that the manufacturing cost is lowered; the water storage tank and the drainage mechanism can be replaced and dismounted, so that the leak hunting device is suitable for leak hunting for workpieces with different shapes and sizes; and the water level lifting rate can be adjusted by replacing drainage blocks with different sizes, so that the provided device is convenient by being compared with the fixed water supply and drainage system.
Description
Technical field
The present invention relates to air-leakage test technical field, specifically a kind of porous workpiece leak-checking apparatus。
Background technology
In order to whether test part die cavity, wall thickness leak gas, generally adopt water inspection, gas two kinds of modes of inspection。Examine in formula air leak tester at water, it is common to use fixed water tank。Therefore, leak detecting device must configure huge storage tank, water pump, pipeline and electrical system, and structure is complicated, and cost is high, and maintenance cost is also high。On the other hand, owing to adopting drain pipe draining and adding water, in test process, the rising or falling speed of water level is all relatively slow, has a strong impact on the efficiency of air leak tester。
The utility model patent that publication number is CN204855204U discloses a kind of leak-checking apparatus, including pedestal, carrying positioning component and air guiding base, carrying positioning component and air guiding base are both secured on pedestal, Workpiece carrier is positioned at least one in carrying positioning component and air guiding base, and upper containing groove opening direction is in the upwards layout being different from horizontal direction, air guiding base offers breather line group, breather line group has at least one air inlet and at least one gas outlet, air inlet is communicated in the air pump of outside, gas outlet is right against groove bottom wall need to detect bubble-tight position, when the air-tightness of workpiece is detected, liquid is carried in upper containing groove。If the liquid in upper containing groove emits bubble, then gas leakage is described。Upwards adding water in containing groove when this structure needs to be detected, operability is strong, the more difficult control of addition of water。And, can only detecting for the workpiece with upper containing groove, the workpiece for other shapes is then inapplicable。
Summary of the invention
The technical problem to be solved is: provide a kind of can the leak-checking apparatus of fast lifting water level。
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of porous workpiece leak-checking apparatus, including storage tank, ventilating mechanism, black box and drainage mechanism, described drainage mechanism includes lowering or hoisting gear and draining block, described draining block is arranged in storage tank, and described lowering or hoisting gear drives the lifting of draining block, and described ventilating mechanism includes breather, described breather is connected with Work piece sealing, and described black box is used for sealing workpiece。
Further, also including sealed base, described sealed base is arranged in storage tank, the top of described sealed base is flexible sealed end, described sealed end is provided with through hole, and described sealed end is connected with Work piece sealing, and described breather is connected with workpiece by described through hole。
Further, described sealed end is round table-like rubber ring, and the external diameter of described rubber ring is gradually increased from top to bottom。
Further, described ventilating mechanism includes air compressor, and described breather is connected with air compressor。
Further, described black box includes hydraulic pressure plug。
Further, also including controller, described ventilating mechanism, drainage mechanism and black box are electrically connected with the controller respectively。
The beneficial effects of the present invention is: leak-checking apparatus structure is relatively simple, without complicated pipeline and electrical system, the lifting of draining block is driven to change rapidly water level height by lowering or hoisting gear, without adding water or draining in water tank, it is greatly improved the efficiency of work of leaking hunting, save the detection time, simultaneously also more energy-conservation；Save supply and drain water system, make leak detecting device simplify the structure, reduce manufacturing cost；Storage tank and drainage mechanism are interchangeable, removable, are suitable for the leaking hunting of workpiece of difformity and size；By changing various sizes of draining block, it is possible to adjust fluctuation in stage speed, more fixed supply and drain water system is convenient。
Accompanying drawing explanation
Fig. 1 is the structural representation of porous workpiece leak-checking apparatus of the present invention。
Label declaration:
1, storage tank；2, draining block；3, breather；4, sealed base；41, rubber ring；5, hydraulic pressure plug。
Detailed description of the invention
By describing the technology contents of the present invention in detail, being realized purpose and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained。
The design of most critical of the present invention is in that: drive the lifting of draining block to change rapidly water level height by lowering or hoisting gear, it is not necessary to add water or draining in water tank, be greatly improved the efficiency of work of leaking hunting, save the detection time。
Refer to Fig. 1, a kind of porous workpiece leak-checking apparatus, including storage tank 1, ventilating mechanism, black box and drainage mechanism, described drainage mechanism includes lowering or hoisting gear and draining block 2, described draining block is arranged in storage tank, and described lowering or hoisting gear drives the lifting of draining block, and described ventilating mechanism includes breather 3, described breather is connected with Work piece sealing, and described black box is used for sealing workpiece。
When porous workpiece leak-checking apparatus of the present invention uses, draining block is positioned at above the water surface of storage tank, first workpiece is fixed on above the water surface, workpiece hole and breather are tightly connected, then with black box, remaining hole on workpiece are sealed, then control lowering or hoisting gear and drive the decline of draining block to make water level in water storage tank increase, until the water surface did not have workpiece top, by breather to inside workpiece ventilation pressurization, observe in water whether have bubbling, gas leakage is then described if any bubbling。
Above-mentioned leak-checking apparatus structure is relatively simple, it is not necessary to complicated pipeline and electrical system, drives the lifting of draining block to change rapidly water level height by lowering or hoisting gear, it is not necessary to add water or draining in water tank, be greatly improved the efficiency of work of leaking hunting, save the detection time；Save supply and drain water system, make leak detecting device simplify the structure, reduce manufacturing cost；Storage tank and drainage mechanism are interchangeable, removable, are suitable for the leaking hunting of workpiece of difformity and size；By changing various sizes of draining block, it is possible to adjust fluctuation in stage speed, more fixed supply and drain water system is convenient。Wherein, described lift cylinder is preferably lift cylinder, can change fluctuation in stage speed by changing the rising or falling speed of lift cylinder。Draining block is preferably hollow drain vessel, and the material of drain vessel is preferably rustless steel。
Further, also including sealed base 4, described sealed base is arranged in storage tank, the top of described sealed base is flexible sealed end, described sealed end is provided with through hole, and described sealed end is connected with Work piece sealing, and described breather is connected with workpiece by described through hole。
Seen from the above description, being fixed on sealed base by flexible sealed end by workpiece, be tightly connected again through the through hole on sealed end and breather, workpiece is sealably fixed on sealed base, facilitates the carrying out of subsequent operation。
Further, described sealed end is round table-like rubber ring 41, and the external diameter of described rubber ring is gradually increased from top to bottom。
Seen from the above description, adopting round table-like rubber ring to be connected with workpiece, sealed end can be successfully inserted in workpiece, it is necessary to firmly being extracted by workpiece during taking-up, owing to rubber ring has elasticity, rubber ring can firmly clog the hole of workpiece。
Further, described ventilating mechanism includes air compressor, and described breather is connected with air compressor。
Seen from the above description, breather passes into the gas of certain pressure intensity by air compressor in workpiece, can detect whether workpiece leaks gas。
Further, described black box includes hydraulic pressure plug 5。
Seen from the above description, by hydraulic pressure plug from multiple orientation by Work-sheet pressing on sealed base, breather again to inside workpiece ventilate, error can be greatly reduced。
Further, also including controller, described ventilating mechanism, drainage mechanism and black box are electrically connected with the controller respectively。Described controller is preferably PLC。
Seen from the above description, after being connected with sealed end and passage by workpiece, automatically controlling hydraulic pressure plug by PLC and seal up remaining hole on workpiece, then lift cylinder automatically controls draining block and declines and make the water level in storage tank rise to not have workpiece, leak hunting in hgher efficiency, and more accurate。
Further, pressure transducer can also be set in porous workpiece, after workpiece is connected with sealed end and passage, hydraulic pressure plug seals up remaining hole on workpiece, by measuring the changing value of pressure in workpiece within a certain period of time, calculate the leakage rate Δ (Δ=Δ P/ Δ t) of workpiece, which achieves dry-type leak hunting, it is not necessary to water also can complete。
Refer to Fig. 1, embodiments of the invention are: a kind of porous workpiece is (such as tee T, can also be the workpiece with multiple hole of other shapes) leak-checking apparatus, including storage tank 1, ventilating mechanism, black box and drainage mechanism, described drainage mechanism includes lift cylinder and draining block 2, described draining block is arranged in storage tank, described lift cylinder drives the lifting of draining block, described ventilating mechanism includes breather 3, described breather is connected with Work piece sealing, and described black box is used for sealing workpiece。Also include sealed base 4, described sealed base is arranged in storage tank, and (sealed base can be a platform being horizontally set in storage tank, this platform is provided with the sealed end of projection), the top of described sealed base is flexible sealed end, described sealed end is provided with through hole, described sealed end is connected with Work piece sealing, and described breather is connected with workpiece by described through hole。Described sealed end is round table-like rubber ring 41, and the external diameter of described rubber ring is gradually increased from top to bottom。Described ventilating mechanism includes air compressor, and described breather is connected with air compressor。Described black box includes hydraulic pressure plug 5。Also including controller, described ventilating mechanism, drainage mechanism and black box are electrically connected with the controller respectively。
In sum, having the beneficial effects that of porous workpiece leak-checking apparatus provided by the invention: structure is relatively simple, without complicated pipeline and electrical system, the lifting of draining block is driven to change rapidly water level height by lowering or hoisting gear, without adding water or draining in water tank, it is greatly improved the efficiency of work of leaking hunting, saves the detection time；Save supply and drain water system, make leak detecting device simplify the structure, reduce manufacturing cost；Storage tank and drainage mechanism are interchangeable, removable, are suitable for the leaking hunting of workpiece of difformity and size；By changing various sizes of draining block, it is possible to adjust fluctuation in stage speed, more fixed supply and drain water system is convenient；Being fixed on sealed base by flexible sealed end by workpiece, be tightly connected again through the through hole on sealed end and breather, workpiece is sealably fixed on sealed base, facilitates the carrying out of subsequent operation；Adopting round table-like rubber ring to be connected with workpiece, sealed end can be successfully inserted in workpiece, it is necessary to firmly being extracted by workpiece during taking-up, owing to rubber ring has elasticity, rubber ring can firmly clog the hole of workpiece；By hydraulic pressure plug from multiple orientation by Work-sheet pressing on sealed base, breather again to inside workpiece ventilate, error can be greatly reduced；After workpiece is connected with sealed end and passage, automatically control hydraulic pressure plug by PLC and seal up remaining hole on workpiece, then lift cylinder automatically controls draining block and declines and make the water level in storage tank rise to not have workpiece, and leaked hunting in hgher efficiency, and more accurate。
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalents utilizing description of the present invention and accompanying drawing content to make, or directly or indirectly it is used in relevant technical field, all in like manner include in the scope of patent protection of the present invention。
Claims (6)
1. a porous workpiece leak-checking apparatus, it is characterized in that: include storage tank, ventilating mechanism, black box and drainage mechanism, described drainage mechanism includes lowering or hoisting gear and draining block, described draining block is arranged in storage tank, described lowering or hoisting gear drives the lifting of draining block, described ventilating mechanism includes breather, and described breather is connected with Work piece sealing, and described black box is used for sealing workpiece。
2. porous workpiece leak-checking apparatus according to claim 1, it is characterized in that: also include sealed base, described sealed base is arranged in storage tank, the top of described sealed base is flexible sealed end, described sealed end is provided with through hole, described sealed end is connected with Work piece sealing, and described breather is connected with workpiece by described through hole。
3. porous workpiece leak-checking apparatus according to claim 2, it is characterised in that: described sealed end is round table-like rubber ring, and the external diameter of described rubber ring is gradually increased from top to bottom。
4. porous workpiece leak-checking apparatus according to claim 1, it is characterised in that: described ventilating mechanism includes air compressor, and described breather is connected with air compressor。
5. porous workpiece leak-checking apparatus according to claim 1, it is characterised in that: described black box includes hydraulic pressure plug。
6. porous workpiece leak-checking apparatus according to claim 1, it is characterised in that: also including controller, described ventilating mechanism, drainage mechanism and black box are electrically connected with the controller respectively。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163973.6A CN105699017A (en) | 2016-03-22 | 2016-03-22 | Leak hunting device for multi-hole workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610163973.6A CN105699017A (en) | 2016-03-22 | 2016-03-22 | Leak hunting device for multi-hole workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105699017A true CN105699017A (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610163973.6A Pending CN105699017A (en) | 2016-03-22 | 2016-03-22 | Leak hunting device for multi-hole workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105699017A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500930A (en) * | 2016-12-25 | 2017-03-15 | 重庆德运模具制造有限公司 | Airtight, the heavy water bulk testing equipment of porous part |
| CN107796568A (en) * | 2017-11-28 | 2018-03-13 | 上海开能环保设备股份有限公司 | Glass fibre reinforced plastic tub gas examines equipment |
| CN110261049A (en) * | 2019-06-12 | 2019-09-20 | 四川省第六建筑有限公司 | Drainpipe leak test device and method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01202636A (en) * | 1988-02-08 | 1989-08-15 | Mazda Motor Corp | Leak tester |
| CN2134646Y (en) * | 1992-09-01 | 1993-05-26 | 吴茂材 | Detector for airtightness |
| CN2335139Y (en) * | 1998-06-09 | 1999-08-25 | 彭永杰 | Water tank of hydraulic air tightness testing machine |
| CN101526415A (en) * | 2009-04-17 | 2009-09-09 | 常州市明宇交通器材有限公司 | Identification device for air tightness detection of vehicle lamps |
| CN201819776U (en) * | 2010-09-28 | 2011-05-04 | 高精科技(苏州)有限公司 | Airtightness detection device |
| CN203932255U (en) * | 2014-05-20 | 2014-11-05 | 双登集团股份有限公司 | The water-level control apparatus detecting for cell cover Capsule conformability |
| CN204064566U (en) * | 2014-08-09 | 2014-12-31 | 浙江拓卡斯机械科技有限公司 | A kind of aluminium casting leak-checking apparatus |
| CN204202824U (en) * | 2014-11-28 | 2015-03-11 | 珠海格力电器股份有限公司 | Nut cover leak detection device of water tank |
| CN205483429U (en) * | 2016-03-22 | 2016-08-17 | 莆田市荣兴机械有限公司 | Porous work piece device that leaks hunting |
-
2016
- 2016-03-22 CN CN201610163973.6A patent/CN105699017A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01202636A (en) * | 1988-02-08 | 1989-08-15 | Mazda Motor Corp | Leak tester |
| CN2134646Y (en) * | 1992-09-01 | 1993-05-26 | 吴茂材 | Detector for airtightness |
| CN2335139Y (en) * | 1998-06-09 | 1999-08-25 | 彭永杰 | Water tank of hydraulic air tightness testing machine |
| CN101526415A (en) * | 2009-04-17 | 2009-09-09 | 常州市明宇交通器材有限公司 | Identification device for air tightness detection of vehicle lamps |
| CN201819776U (en) * | 2010-09-28 | 2011-05-04 | 高精科技(苏州)有限公司 | Airtightness detection device |
| CN203932255U (en) * | 2014-05-20 | 2014-11-05 | 双登集团股份有限公司 | The water-level control apparatus detecting for cell cover Capsule conformability |
| CN204064566U (en) * | 2014-08-09 | 2014-12-31 | 浙江拓卡斯机械科技有限公司 | A kind of aluminium casting leak-checking apparatus |
| CN204202824U (en) * | 2014-11-28 | 2015-03-11 | 珠海格力电器股份有限公司 | Nut cover leak detection device of water tank |
| CN205483429U (en) * | 2016-03-22 | 2016-08-17 | 莆田市荣兴机械有限公司 | Porous work piece device that leaks hunting |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106500930A (en) * | 2016-12-25 | 2017-03-15 | 重庆德运模具制造有限公司 | Airtight, the heavy water bulk testing equipment of porous part |
| CN107796568A (en) * | 2017-11-28 | 2018-03-13 | 上海开能环保设备股份有限公司 | Glass fibre reinforced plastic tub gas examines equipment |
| CN110261049A (en) * | 2019-06-12 | 2019-09-20 | 四川省第六建筑有限公司 | Drainpipe leak test device and method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160622 |
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| RJ01 | Rejection of invention patent application after publication |