CN201464140U - Device by using air pressure to detect air tightness of product - Google Patents

Device by using air pressure to detect air tightness of product Download PDF

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Publication number
CN201464140U
CN201464140U CN2009200755260U CN200920075526U CN201464140U CN 201464140 U CN201464140 U CN 201464140U CN 2009200755260 U CN2009200755260 U CN 2009200755260U CN 200920075526 U CN200920075526 U CN 200920075526U CN 201464140 U CN201464140 U CN 201464140U
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CN
China
Prior art keywords
product
air
clamping
pressure
counter
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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 - Lifetime
Application number
CN2009200755260U
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Chinese (zh)
Inventor
韩元平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Xinhu Canned Motor Pump Co Ltd
Original Assignee
SHANGHAI XINHU ELECTRIC MACHINE FACTORY CO Ltd
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Priority to CN2009200755260U priority Critical patent/CN201464140U/en
Application granted granted Critical
Publication of CN201464140U publication Critical patent/CN201464140U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a device by using air pressure to detect the air tightness of a product. The device comprises a working platform, a clamping cylinder, a control box, a positioning bracket, a supporting frame, an air filling device, a clamping pressure meter, a leakage-detecting pressure meter and a counter, wherein the positioning bracket is arranged on the working platform; the supporting frame is arranged on the positioning bracket; the clamping cylinder is arranged on the working platform and is connected with the clamping pressure meter; the air filling device is arranged on the working platform, is provided with a digital pressure sensor, and is connected with the leakage-detecting pressure meter; and the control box is arranged on the working platform, and controls and is connected with the clamping cylinder, the air filling device, the digital pressure sensor and the counter. The device can effectively solve the defect that the device for using liquid to detect the air tightness brings plenty of quality problems for the follow-up processing of the product.

Description

A kind of bubble-tight device of air pressure testing product that utilizes
Technical field:
The utility model relates to a kind of electromechanical equipment verifying attachment, the bubble-tight pick-up unit of particularly a kind of electromechanical equipment inner chamber.
Background technology:
The electronic product that generally has the impermeability requirement has two kinds of devices to carry out bubble-tight detection after the finished product installation:
First kind, carry out bubble-tight detection at the inner chamber that has impermeability to require with air pressure, but this type of pressure test device need cooperate water tank to carry out.When it carries out the impermeability detection, to charge into a certain amount of gas at inner chamber, and whether the product of the certain air pressure of formation is put into water tank in inner chamber, have bubble to come up by the observation inner chamber and judge whether product leaks gas: if no bubble is emerged, illustrate that this product cavity impermeability meets the requirements; If there is bubble to emerge, illustrate that the impermeability of this product cavity is undesirable.
Second kind, charge into certain amount of fluid (mainly being water) at the inner chamber that has impermeability to require and carry out bubble-tight detection.When it carries out the impermeability detection, charge into certain quantity of fluid at inner chamber, and in inner chamber, form certain hydraulic pressure, whether have flow of liquid to come out to judge the impermeability of product cavity by observing inner chamber:, to illustrate that this product cavity impermeability meets the requirements if no liquid flows out; If have liquid to flow out, illustrate that the impermeability of this product cavity is undesirable.
More than two kinds of bubble-tight pick-up units certain limitation is all arranged, first kind of pick-up unit widespread is in the dry type motor, second kind of device is mainly used in the impermeability detection of parts, required detection occasion is higher, but charge into liquid in the water or in test chamber owing to all need to immerse, so there is the shortcoming of following several respects:
(1) owing to product to be detected will be immersed in the water, will cause the surface of a part of parts of product to be detected that the water mark is arranged, need, operations such as the oven dry mark that dewaters of making a return journey with follow-up suction, and some position is because component structural can cause the residual of liquid;
(2) meeting influence the quality after the subsequent paint operation is sprayed paint;
(3) can cause the cast(ing) surface corrosion;
(4) inefficiency;
(5) workplace is untidy, and other equipment, facility (as streamline, worktable or the like) near can corroding.
Carry out impermeability when detecting so state two kinds of pick-up units in the use, can cause the problem of a series of product qualities aspect.
The utility model content:
The utility model is at the existing problem of existing air-tightness detection device, technical matters to be solved is, solution is carried out the problem that air-tightness detection device is given many quality aspect that the product following process brings with liquid, provides a kind of to utilize gas atmosphere to carry out the device that impermeability detects.
In order to solve the problems of the technologies described above, and achieve the above object, the utility model adopts following technical scheme:
A kind of bubble-tight device of air pressure testing product that utilizes, this device comprises workbench, clamps cylinder, control box, locating support, carriage, aerating device, clamping pressure table, tensimeter and counter leak hunting; Described locating support is placed on the worktable, and described carriage is placed on the locating support, and described clamping cylinder is arranged on the workbench, and connect with the clamping pressure epiphase, described aerating device is arranged on the worktable, and it is provided with digital pressure sensor, and is connected with the tensimeter that leaks hunting; Described control box is arranged on the worktable, and control linkage clamps cylinder, aerating device, digital pressure sensor and counter.
Also comprise power light, counter, relay indicating light, the red NG pilot lamp of green OK pilot lamp, reset switch in the described device, and connecting box control respectively.
The air-tightness detection device that obtains according to technique scheme, and carry out air-tightness detection device with liquid before and compare and have the following advantages:
One, solves the water mark of component surface after impermeability detects and the residue problem of liquid, thereby painting process can have been moved forward, solved the problem that the PASS difference that the water mark causes is arranged owing to product surface;
Two, solved because there is the corrosion that causes in cast(ing) surface because of the water mark is arranged, prolonged the time of cast(ing) surface generation corrosion;
Three, improve the work efficiency of producing, reduced the operation of suction and oven dry, thus the cost of the manufacturing that reduces;
Four, improved the clean and tidy situation of production scene, laid a good foundation for company implements the 5S management.
Description of drawings:
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is a structural representation of the present utility model.
Embodiment:
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Since existing to electronic product at the laggard capable air-tightness detection device of finished product installation, finally all need to utilize liquid to detect, this brings certain problem for following process of electronic product.
For fear of the problems referred to above occurring, the utility model proposes a kind of and utilize the bubble-tight pick-up unit of gas atmosphere testing product.This device realizes that the principle that detects is to charge into earlier certain gas in product cavity, forms air pressure; Again in official hour, detect air pressure in its inner chamber and whether change the impermeability of judging product cavity and whether meet the requirements.
Based on above-mentioned principle, the pick-up unit that the utility model provides is as shown in Figure 1: it is mainly by workbench 101, clamp cylinder 102, compositions such as control box 103, locating support (frock) 104, carriage (frock) 105, sealing gasket 106, counter 107, aerating device, relay indicating light 108, green OK pilot lamp 109, red NG pilot lamp 110, power light 111, reset switch 112, clamping pressure table 113, the tensimeter 114 that leaks hunting.Pick-up unit shown in this figure can detect the impermeability of two shielded electric pumps 115 simultaneously.
Wherein locating support 104 is placed on the worktable 101, is used to settle the carriage 105 of product to be detected to be placed in locating support 104.
Clamp cylinder 102 and be provided with sealing gasket 106, and be arranged on the workbench 101, be used for product to be detected on the clamp bracket, and clamping pressure is transferred to clamping pressure table 113.
Aerating device is arranged on the worktable, is used to treat inflation in the testing product inner chamber, and it is provided with digital pressure sensor, and detected pressure is reached the tensimeter 144. that leaks hunting
Described control box 103 is arranged on the worktable, and control linkage clamps cylinder 102, aerating device, digital pressure sensor, counter 107, relay indicating light 108, green OK pilot lamp 109, red NG pilot lamp 110, power light 111, reset switch 112.
It is as follows that the utility model obtains the concrete detection of air-tightness detection device based on technique scheme:
The 1st step, connect air-tightness detection device power supply and source of the gas, the reset switch 112 of the power supply on it outwarded winding, power light 111 is bright, enters readiness for operation.
In the 2nd step, according to the shape of product to be detected (shielded electric pump) 115, select suitable carriage 105 to place on the locating support 104, and the shielded electric pump 115 that detects is placed the place, location of carriage 105.
The 3rd step, starter gear, relay indicating light 108 lights, and the control box 104 on the device will be controlled and clamp cylinder 102 actions, and shielded electric pump 115 is held out against, and seal by sealing gasket 106 therebetween.
In the 4th step, the clamping pressure that clamps 102 pairs of shielded electric pumps 115 of cylinder keep-up pressure, and this clamping pressure value intuitively shows by clamping pressure table 113 after reaching and clamping required setup pressure value.Determining of the clamping pressure value that this clamping cylinder 102 is applied mainly is to calculate required pressure according to the detected pressures of inner chamber and the planimeter of pump housing intake-outlet, multiply by certain safety coefficient again and sets.
The 5th step, reach the force value of setting at clamping pressure after, behind the time-delay certain hour (this time can be regulated according to actual conditions), send signal to device, device control aerating device is entered automatically to inflated condition in the inner chamber of shielded electric pump 115, open single-phase valve, inflate for the inner chamber that shielded electric pump 115 need leak hunting, and in the inner chamber that shielded electric pump 115 need leak hunting, form certain air pressure, this atmospheric pressure value detects the pressure of the inner chamber that need leak hunting by the digital pressure sensor on the device, and signal is passed to the tensimeter 114 that leaks hunting, intuitively show (when inflation beginning to inflation finished, this tensimeter that leaks hunting showed the force value of inner chamber in real time) by the tensimeter 114 that leaks hunting.
In the 6th step, the air pressure in shielded electric pump 115 inner chambers reaches the detected pressures value that sets, and this detected pressures value can require to set according to shielded electric pump 115, also can set by the standard-required of each enterprise, and after the time-delay regular hour, device is closed gas filling valve automatically, stops inflation.
The 7th step, after device stops need being leaked hunting the inner chamber inflation, leak hunting behind the tensimeter 114 time-delay certain hours (this time can be regulated according to actual conditions), device enters the process of leaking hunting automatically, and what the tensimeter 114 that leaks hunting this moment showed is the leak rate value.This moment, digital pressure sensor detected in real time to the air pressure in shielded electric pump 115 inner chambers, and the pressure signal transmission after will detecting is given the tensimeter 114 that leaks hunting, the tensimeter 114 that leaks hunting calculates its leak rate value according to the pressure that is measured, and the leak rate value that will calculate gained leak rate value and previous setting compares: in the detection time of setting, if the atmospheric pressure value that digital pressure sensor detects in shielded electric pump 115 inner chambers drops to the setting alarm pressure value, it is critical value, this alarm pressure value can press the test contrast to determine afterwards by in the past shielded electric pump 115 being carried out water (gas), this shielded electric pump 115 inner chambers gas leakage then is described, its impermeability is undesirable, this moment, red NG pilot lamp 110 lighted, and send chimes of doom, remind shielded electric pump that the operator detects 115 defective; If in the detection time of setting, the atmospheric pressure value that digital pressure sensor detects in shielded electric pump 115 inner chambers does not drop to the setting alarm pressure value, and promptly critical value illustrates that then these shielded electric pump 115 inner chambers are air tight, its impermeability meets the requirements, and this moment, green OK pilot lamp 109 lighted.
In the 8th step, when the impermeability of two shielded electric pumps 115 detects when qualified, in order, the detected air pressure that will cover electric pump 115 inner chambers is earlier carried out pressure release to this device after detection is finished, and then unclamps the clamping cylinder; When two cover electric pump 115 underproof phenomenon is arranged,, carry out pressure release and unclamp the clamping cylinder by manually pressing reset switch 112.
More than showing and described ultimate principle of the present utility model and principal character and advantage of the present utility model. the technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope. and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (2)

1. one kind is utilized the bubble-tight device of air pressure testing product, it is characterized in that described device comprises workbench, clamps cylinder, and control box, locating support, carriage, aerating device, clamping pressure table, tensimeter and counter leak hunting; Described locating support is placed on the worktable, and described carriage is placed on the locating support, and described clamping cylinder is arranged on the workbench, and connect with the clamping pressure epiphase, described aerating device is arranged on the worktable, and it is provided with digital pressure sensor, and is connected with the tensimeter that leaks hunting; Described control box is arranged on the worktable, and control linkage clamps cylinder, aerating device, digital pressure sensor and counter.
2. a kind of bubble-tight device of air pressure testing product that utilizes according to claim 1, it is characterized in that, also comprise power light, counter, relay indicating light, the red NG pilot lamp of green OK pilot lamp, reset switch in the described device, and connecting box control respectively.
CN2009200755260U 2009-07-30 2009-07-30 Device by using air pressure to detect air tightness of product Expired - Lifetime CN201464140U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200755260U CN201464140U (en) 2009-07-30 2009-07-30 Device by using air pressure to detect air tightness of product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200755260U CN201464140U (en) 2009-07-30 2009-07-30 Device by using air pressure to detect air tightness of product

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564712A (en) * 2011-12-22 2012-07-11 上海夏普电器有限公司 Device for filling pressure and monitoring pressure leakage
CN102706524A (en) * 2012-05-15 2012-10-03 苏州凯尔博精密机械有限公司 Air tightness detecting device for medical needle head
CN103604486A (en) * 2013-11-18 2014-02-26 广东鸿泰科技股份有限公司 Method and device for calibrating trace leakage detection of aluminum alloy die casting
CN103616168A (en) * 2013-10-25 2014-03-05 苏州恩意精密机械有限公司 An operating method of a coffee pot steam switch detection machine
CN103616108A (en) * 2013-10-25 2014-03-05 苏州恩意精密机械有限公司 Measuring technology of an inflating and force-measuring device of a coffee pot steam switch detection machine
CN102887308B (en) * 2011-07-22 2017-03-01 香港生产力促进局 Safety-protection system for cargo transport and storage

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102887308B (en) * 2011-07-22 2017-03-01 香港生产力促进局 Safety-protection system for cargo transport and storage
CN102564712A (en) * 2011-12-22 2012-07-11 上海夏普电器有限公司 Device for filling pressure and monitoring pressure leakage
CN102706524A (en) * 2012-05-15 2012-10-03 苏州凯尔博精密机械有限公司 Air tightness detecting device for medical needle head
CN102706524B (en) * 2012-05-15 2013-08-14 苏州凯尔博精密机械有限公司 Air tightness detecting device for medical needle head
CN103616168A (en) * 2013-10-25 2014-03-05 苏州恩意精密机械有限公司 An operating method of a coffee pot steam switch detection machine
CN103616108A (en) * 2013-10-25 2014-03-05 苏州恩意精密机械有限公司 Measuring technology of an inflating and force-measuring device of a coffee pot steam switch detection machine
CN103604486A (en) * 2013-11-18 2014-02-26 广东鸿泰科技股份有限公司 Method and device for calibrating trace leakage detection of aluminum alloy die casting

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: HEFEI XINHU CANNED MOTOR PUMP CO., LTD.

Free format text: FORMER OWNER: XINHU DYNAMO PLANT CO., LTD., SHANGHAI

Effective date: 20130325

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 201318 NANHUI, SHANGHAI TO: 230088 HEFEI, ANHUI PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20130325

Address after: 230088 Anhui city of Hefei province high tech Zone Technology Park Bai Yan Yang Road No. 1

Patentee after: Hefei Xinhu Canned Motor Pump Co., Ltd.

Address before: 201318 No. 333 East Cambridge Road, Nanhui District, Shanghai

Patentee before: Shanghai Xinhu Electric Machine Factory Co., Ltd.

CX01 Expiry of patent term
CX01 Expiry of patent term

Granted publication date: 20100512