CN102288365A - Leak test device - Google Patents
Leak test device Download PDFInfo
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- CN102288365A CN102288365A CN2011102277316A CN201110227731A CN102288365A CN 102288365 A CN102288365 A CN 102288365A CN 2011102277316 A CN2011102277316 A CN 2011102277316A CN 201110227731 A CN201110227731 A CN 201110227731A CN 102288365 A CN102288365 A CN 102288365A
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Abstract
The invention relates to a leakage test device used for leak test of automobile parts. The design depends on the existing leak detector, flexible electrical and application software design and a convenient product adding and deleting program interface; a program can be switched by an operator only by selecting a simple program number for different products; software interfaces are uniform; and FIS (factory information traceability system) function is realized; special plugging structure such as internal expanding plugging, external expanding plugging and end face type sealing are realized according to the characteristics of a product; and each plugging structure has automatic and manual means; a stable and rapid pipeline and valve system improves sensitivity and speed of leak detection; a differential pressure type voltage drop comparison method guarantees the accuracy and sensitivity of the test; an embedded operating platform and a light curtain protective design effectively guarantee operational safety of personnel; and a fixture and the program can realize switching of different product applications within 5 minutes.
Description
Technical field
The present invention relates to a kind of leak-testing equipment, relate in particular to a kind of leak-testing equipment that is used for the auto parts and components leak detection.
Background technology
At present, along with developing of automobile industry, there has been the testing requirement that auto parts and components are hunted leak in increasing auto parts and components production firm, and this testing requirement has also just in time been satisfied in the development of leak locator now, but only there is leak locator can not immediately realize leak detection to product, also must be furnished with necessary pipeline and shutoff joint, industrial products generally all have in enormous quantities in addition, quick, the retrospective production demand of data, so leak test plant has just arisen at the historic moment.
Summary of the invention
The objective of the invention is to overcome the above problem that prior art exists, a kind of leak-testing equipment that is used for the auto parts and components leak detection is provided.
For realizing purpose of the present invention, a kind of leak-testing equipment that is used for the auto parts and components leak detection, comprise that product additions and deletions easily remove routine interface, for different products, the operation employee only need carry out simple program number and select, just can realize the switching of program, software interface is unified, and possesses FIS (plant information traceability system) function; The standardization of application design concept, general functional test desk, the design period of equipment, spare part was unified greater than 10 years, and maintenance is convenient; According to special plugging structure---the internal expansion type shutoff that products characteristics is carried out, the external-expanding type shutoff, the end-surface type sealing, and various plugging structure has automatically and manual two kinds of means; Stable pipeline and valve system fast; The pressure drop relative method of differential pressure type guarantees the precision and the sensitivity of test; Employee's handling safety has effectively been protected in the design of embedded operating platform and light curtain protection; Anchor clamps and program at 5 minutes with the interior switching that can realize using for different product.
Further improvement of the present invention is, has expanded the function of leak-testing instrument, makes the leak detection result more reliable, more stable.
Further improvement of the present invention is, uses IPC to make data storage and control communication component, and when selecting the framework of no PLC for use, IPC is the double as control module also.
Further improvement of the present invention is, has incorporated optional PLC unit, as cheap logic control element.
Further improvement of the present invention is, has designed pipeline control transfer valve group, is used to accelerate test period.
Further improvement of the present invention is, uses quick, convenient, reliable circuit air-path interface unit.
Further improvement of the present invention is, has used control framework and has detected the design that anchor clamps separate, and has realized the recycling of control framework.
Further improvement of the present invention is, has used the reliable pipe system of no creep.
Further improvement of the present invention is, has designed quick, convenient, reliable shutoff interface.
Further improvement of the present invention is, has added test pipeline feedback transducer, makes test more accurate, has incorporated the function of mistake proofing.
The invention has the beneficial effects as follows: the leakage of having satisfied products such as factory's water tank, condenser, evaporator, warm braw is surveyed, improved production efficiency, provided the quantitative result that leaks, increased the confidence level of test, and can expand in the middle of other products that need leak hunting.
Description of drawings
Accompanying drawing 1 is the structural representation of a kind of leak-testing equipment of the present invention.
Embodiment
Below preferable embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.
Referring to accompanying drawing 1, this leak-testing equipment mainly comprises three aspects: Machine Design, electrical control design and application software designing technique.
1, Ji Xie design
1.1 the frame form of full encirclement formula has been used in the configuration design of machinery, the opening part that picks and places product is equipped with safe light curtain, to guarantee operating personnel's safety;
1.2 anchor clamps and body be design separately, guarantees the versatility of body;
1.3 mechanical structures adopts general profile design, the load-bearing standard is greater than 1000Kg, and the equipment color is unified to be #7035;
1.4 clamp-replacing function design fast realizes that the conllinear of a plurality of type products is used;
1.5 according to products characteristics and separately design seals module automatically fast;
1.6 all pneumatic elements, shank adopt the solution of industrial standard, and on type selecting uniform brand and model, realize the high intercommunity of system;
1.7 reliable and stable pipe system, gas circuit charges and discharge the gas bypass fast, and the stability of equipment is still outstanding;
1.8 the defective products collection controller of equipment is standard configuration, strengthens the mistake proofing ability;
1.9 crucial seal plug design
1.9.1 the design of sealing clamp has prevented the variation of leakage and test volume;
1.9.2 the design of sealing clamp has guaranteed enough clampings and sealing dynamics;
1.9.3 the pneumatic element of carefully choosing has guaranteed the intact sealing of system;
1.9.4 necessary filling material is to reduce tested volume;
1.9.5 not having the encapsulant of leakage, no creep selects for use.
2, electrical control design
2.1 IPC or PLC as the logic control device of action, when using PLC to make logic control device, adopt OPC server mode to realize the parameter downloads and the control of different application with host computer;
2.2 the interface section adopts the mode that patches fast to design, and does not need screw to carry out interface and fixes, and takes from modes such as coupling lockings;
2.3 many power supplys such as system provides, and AC is single-phase, three-phase, DC are reserved;
2.4 the control communication part adopts industrial bus interfaces such as RS232,485, modbus, and carries out the design of communication software at PLC software;
2.5 safety control module, anxious loop, light curtain and the equipment state display design of stopping.
2.6 the part for needs move adopts the design of flexible cable;
3, application software design
3.1 multi-platform configuration section is realized configuration by host computer;
3.2 the operation interface of hommization possesses the control of authority of different brackets;
3.3 the I/O of different application adopts reuse plan, improves the utilization factor of device resource;
3.4IPC display adopts touch screen design, is convenient to employee's operation, meets ergonomics, and is furnished with human interface device such as keyboard and mouse;
3.5 software possesses algorithm and the Presentation Function of realizing different application;
3.6 software possesses database function, and can insert the process control system of factory;
3.7 by the identification of I/O, having, software calls software function automatically.
4, other technologies characteristic
4.1 conveniently load and withdraw from different application;
4.2 possess system initialization and reset function;
4.3 the equipment action design is reasonable, the minimum stand-by period, avoids long shift motion;
4.4 system-level action and software mistake proofing, error correction design;
4.5 after suddenly stopping resetting, system can enter the nearest interface that is provided with;
4.6 the ability that increases specific (special) requirements is reserved in design.
Principle of work of the present invention below is described in detail in detail:
After measured piece is put into frock, IPC or PLC control module send action command to the operation valve group, the automatic shutoff measured piece of shutoff interface, make measured piece form closed container, vacuum source enters measured piece through valve group and CONNECTOR, after vacuum tightness in the closed container reaches specified pressure, the valve group will be cut off vacuum source, and make LEAKEDETECTOR and measured piece UNICOM, LEAK DETECTOR is behind certain hour, the pressure that will read measured piece in the time of appointment continuously changes, and it is scaled automatically specifies the output of leak rate unit, and be presented on the display, and the SENSOR feedback unit will be monitored the pressure of measured piece in real time and change, with reliability and the credibility of guaranteeing system, system will judge the quality of measured piece according to the leak rate value; After vacuum test finishes, system will switch to the compressed gas source air inlet, and repeat the step of vacuum test, and after the whole end of test (EOT), system deposits logging test results and leak rate value in the IPC lane database.
Above embodiment only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this, all equivalences that spirit is done according to the present invention change or modification all is encompassed in protection scope of the present invention.
Claims (7)
1. the present invention relates to a kind of leak-testing equipment that is used for the auto parts and components leak detection, it is characterized in that: clear and definite leak-testing index, the pressure drop relative method of differential pressure type, rapid and reliable product interface shutoff anchor clamps, reliability and durability seal element, the rapid and reliable gas test pipeline that charges and discharge, the separate connection design of anchor clamps and body, the quick program that product is remodeled is switched and configuration.
2. leak-testing index according to claim 1 is characterized in that: add corresponding temperature compensation value according to different time points, more can react real leak rate.
3. the pressure drop relative method of differential pressure type according to claim 1 is characterized in that: add the comparison part identical with the measured piece state, thereby eliminate the leak rate influence that product is out of shape, environment is different and bring to greatest extent.
4. product interface shutoff anchor clamps according to claim 1, it is characterized in that: the peculiar plugging structure according to product feature designs comprises: the internal expansion type shutoff, the external-expanding type shutoff, the shutoff of end face compression type, distinctive encapsulant is avoided the influence of material creep to leak rate to greatest extent.
5. the gas test pipeline that charges and discharge according to claim 1 is characterized in that: do not have creep under test pressure, adds the specific gas bypass that charges and discharge, and with not leaking valve control, thereby guarantee in that to test accurately under the prerequisite realization quick.
6. the design of the separate connection of anchor clamps according to claim 1 and body is characterized in that: connect and all use zero defect, need not the screw locking, in addition the circuit that can connect fast, gas circuit modular connection, do not have extra connecting moves again.
7. the quick program that product according to claim 1 is remodeled is switched and configuration, it is characterized in that: particular profile is arranged, the user only need be in file write-in program number and leak rate value, can realize that the program that product is remodeled switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102277316A CN102288365A (en) | 2011-08-10 | 2011-08-10 | Leak test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102277316A CN102288365A (en) | 2011-08-10 | 2011-08-10 | Leak test device |
Publications (1)
| Publication Number | Publication Date |
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| CN102288365A true CN102288365A (en) | 2011-12-21 |
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| CN2011102277316A Pending CN102288365A (en) | 2011-08-10 | 2011-08-10 | Leak test device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674433A (en) * | 2012-09-12 | 2014-03-26 | 通用汽车环球科技运作有限责任公司 | Reconfigurable leak testing system |
| CN104483070A (en) * | 2014-12-12 | 2015-04-01 | 中国一拖集团有限公司 | Valve block component for detecting leakage of oil duct hole of tractor gearbox casing and use method of valve block component |
| CN104713687A (en) * | 2013-12-17 | 2015-06-17 | 盖普美车用泵（苏州）有限公司 | Vacuum testing device for seal performance |
| CN107219042A (en) * | 2017-07-27 | 2017-09-29 | 中国航天科技集团公司长征机械厂 | Check valve air-tightness ATE and method of testing |
| CN108534963A (en) * | 2018-03-16 | 2018-09-14 | 昆山丘钛微电子科技有限公司 | A kind of water proofing property detection method and system |
| CN110940468A (en) * | 2019-05-05 | 2020-03-31 | 山西永有制冷科技有限公司 | Intelligent airtight detection test bed |
| CN114486110A (en) * | 2021-12-23 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Functionality test method and system for wind power water cooling device |
Citations (4)
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| JPH11241971A (en) * | 1998-02-26 | 1999-09-07 | Shimadzu Corp | Leak test device |
| CN2669162Y (en) * | 2003-12-17 | 2005-01-05 | 上海汽车股份有限公司 | Intelligent dry leak-detecting apparatus |
| CN201075051Y (en) * | 2007-08-16 | 2008-06-18 | 博益(天津)气动技术研究所有限公司 | Apparatus for detecting leakage of sealing article |
| US20100206054A1 (en) * | 2009-02-17 | 2010-08-19 | Fukuda Co., Ltd. | Apparatus and method for leak testing |
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2011
- 2011-08-10 CN CN2011102277316A patent/CN102288365A/en active Pending
Patent Citations (4)
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| JPH11241971A (en) * | 1998-02-26 | 1999-09-07 | Shimadzu Corp | Leak test device |
| CN2669162Y (en) * | 2003-12-17 | 2005-01-05 | 上海汽车股份有限公司 | Intelligent dry leak-detecting apparatus |
| CN201075051Y (en) * | 2007-08-16 | 2008-06-18 | 博益(天津)气动技术研究所有限公司 | Apparatus for detecting leakage of sealing article |
| US20100206054A1 (en) * | 2009-02-17 | 2010-08-19 | Fukuda Co., Ltd. | Apparatus and method for leak testing |
Non-Patent Citations (1)
| Title |
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| 李银华等: "工业部件密封性能检测装置的研究", 《仪器仪表装置》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103674433A (en) * | 2012-09-12 | 2014-03-26 | 通用汽车环球科技运作有限责任公司 | Reconfigurable leak testing system |
| CN103674433B (en) * | 2012-09-12 | 2017-04-12 | 通用汽车环球科技运作有限责任公司 | Reconfigurable leak testing system |
| CN104713687A (en) * | 2013-12-17 | 2015-06-17 | 盖普美车用泵（苏州）有限公司 | Vacuum testing device for seal performance |
| CN104483070A (en) * | 2014-12-12 | 2015-04-01 | 中国一拖集团有限公司 | Valve block component for detecting leakage of oil duct hole of tractor gearbox casing and use method of valve block component |
| CN104483070B (en) * | 2014-12-12 | 2017-10-13 | 中国一拖集团有限公司 | Tractor gearbox body oil hole leak detection valve block assembly and application method |
| CN107219042A (en) * | 2017-07-27 | 2017-09-29 | 中国航天科技集团公司长征机械厂 | Check valve air-tightness ATE and method of testing |
| CN108534963A (en) * | 2018-03-16 | 2018-09-14 | 昆山丘钛微电子科技有限公司 | A kind of water proofing property detection method and system |
| CN108534963B (en) * | 2018-03-16 | 2020-05-08 | 昆山丘钛微电子科技有限公司 | Waterproof performance detection method and system |
| CN110940468A (en) * | 2019-05-05 | 2020-03-31 | 山西永有制冷科技有限公司 | Intelligent airtight detection test bed |
| CN114486110A (en) * | 2021-12-23 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Functionality test method and system for wind power water cooling device |
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Suzhou City, Jiangsu province 215122 Loufeng town Suzhou Industrial Park venture industrial square No. 17 factory Applicant after: Suzhou Linktron Electronic System Co., Ltd. Address before: Suzhou Industrial Park Suzhou city Jiangsu province 215021 Tang Zhuang Road No. 88 Building No. 1 Suzhou linktron Systems Co. Ltd. Applicant before: Suzhou Linktron Electronic System Co., Ltd. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |