CN205175633U - A sealed frock that is used for water heater inner bag welding seam to hunt leak - Google Patents
A sealed frock that is used for water heater inner bag welding seam to hunt leak Download PDFInfo
- Publication number
- CN205175633U CN205175633U CN201521013209.8U CN201521013209U CN205175633U CN 205175633 U CN205175633 U CN 205175633U CN 201521013209 U CN201521013209 U CN 201521013209U CN 205175633 U CN205175633 U CN 205175633U
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- inner bag
- weld seam
- water heater
- frock
- clamping tooling
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Abstract
The utility model provides a sealed frock that is used for water heater inner bag welding seam to hunt leak, including rotary mechanism, rotary mechanism is used for laying the inner bag of treating the detection, still include compatible mechanism of inner bag size and welding seam measuring frock, the compatible mechanism of inner bag size connects on rotary mechanism and along with the synchronous rotation of rotary mechanism, the both sides of inner bag are placed in to the tip that the compatible mechanism of inner bag size kept away from rotary mechanism, the welding seam detects the frock and sets up perpendicularly in the tip of the compatible mechanism of inner bag size, and inner bag welding seam quantity of gas leakage passes through the welding seam and detects the frock collection. With solve exist among the prior art because water heater inner bag dimensional deviation causes the compatible poor problem of sealed frock, to the dimensional deviation that the water heater inner bag caused owing to the processing technology reason, the device can stereotype, adjust according to water heater inner bag actual size.
Description
Technical field
The utility model belongs to water heater liner detection technique field, especially relates to a kind of sealing frock for the leak detection of water heater liner weld seam.
Background technology
Inner bag is the important component part of water heater, is equivalent to the heart of human body, is related to the life-span of whole water heater.Inner bag leaks and can bring potential safety hazard to the water heater in use.Inner bag processing and manufacturing process, easily there is leak source in commissure, therefore, inner bag commissure sealing propertytest is particularly important.Conventional detection method has visual bubble method, vertical compression pointer interpretation method, differential pressure Comparison Method and inert gas collecting method.The above method all needs to use sealing frock, namely uses stationary installation by water heater liner pinch seal.Conventional art is that metal material is made profiling workpiece, lays O-ring seal composition sealing frock.Make technique due to water heater liner to determine, there is deviation in its physical dimension, current profiling fixture design can only be processed according to water heater liner drawing minimum dimension, then be aided with thicker sealed material and give deviation for change, this kind of method needs bulk metallic materials one-shot forming, has that volume heaviness, cost are high, the defect of poor compatibility; Rely on sealed material thickness to fill up dimensional discrepancy, occur sealed material aging damaged time, cause that frock is poorly sealed, degradation situation under accuracy of detection.
Summary of the invention
In view of this, the utility model be intended to propose a kind of for water heater liner weld seam leak detection sealing frock, with solve exist in prior art due to water heater liner dimensional discrepancy, cause the problem of sealing frock poor compatibility; For the dimensional discrepancy that water heater liner causes due to processing technology reason, this device can carry out shaping, adjusting according to water heater liner physical size.
For achieving the above object, the technical solution of the utility model is achieved in that
For a sealing frock for water heater liner weld seam leak detection, comprise rotating mechanism, described rotating mechanism is for laying inner bag to be detected; Also comprise inner bag size compatibility mechanism and weld seam detection frock; Described inner bag size compatibility mechanism to be connected on rotating mechanism and along with rotating mechanism synchronous axial system, and described inner bag size compatibility mechanism is placed in the both sides of inner bag away from the end of rotating mechanism; Described weld seam detection frock is vertically installed in the end of inner bag size compatibility mechanism, and inner bag weld seam quantity of gas leakage is collected by weld seam detection frock.
Further, described rotating mechanism comprises stepper motor and inner bag clamping tooling, and described inner bag clamping tooling is the imitated structure of inner bag; Described inner bag clamping tooling is connected with stepper motor by bearing.
Further, described size compatibility mechanism comprises cylinder, back up pad and weld seam clamping tooling; Have mounting hole in the middle part of described back up pad, described stepper motor transmission shaft is connected with described back up pad through mounting hole; Described cylinder is placed in back up pad, and described weld seam clamping tooling is connected with the guide pole of cylinder, described weld seam clamping tooling and cylinder perpendicular.
Further, described weld seam detection frock comprises collection chamber; Described collection chamber contacts with weld seam, its inside has the through hole collecting gas, described collection chamber is provided with collection tube away from the side of weld seam, and described collection tube one end is connected with collection chamber is through, and the other end is connected with external detection equipment through the through hole on weld seam clamping tooling.
Further, described rotating mechanism also comprises driving gear and follower gear, and described stepper motor is connected with driving gear, and described driving gear and follower gear are meshed.
Further, also contiguous block is provided with between described cylinder and back up pad; Described contiguous block relevant position has through hole, and the guide pole of described cylinder is connected with weld seam clamping tooling through through hole.
Further, described collection chamber is embedded with multiple ball.
Further, the upper surface of described back up pad and the lower surface of weld seam clamping tooling are not in contact with each other.
Further, the through hole that described weld seam clamping tooling is connected with collection tube is Long Circle hole.
Further, the reduction gear ratio of described driving gear and follower gear is 3:1.
Relative to prior art, a kind of sealing frock for the leak detection of water heater liner weld seam described in the utility model has following advantage:
(1) design different from existing profiling fixture, the utility model is made up of the compatible mechanism of rotating mechanism, inner bag size compatibility mechanism and weld size.First clamping tooling is fixedly clamped inner bag, driving stepper motor driving gear drives follower gear (reduction gear ratio is 3:1), the advantage of such design can ensure that tested inner bag is keeping detecting it under the state fixed to clamp, and better ensures accuracy of detection.
(2) inner bag size compatibility mechanism is used for being suitable for different inner bag size, and the stroke of cylinder can meet the clamping of different size inner bag, uses pressure regulator valve control cylinder pressure to make frock can meet the uneven scale error caused of weld seam.
(3) weld size compatible mechanism frock adopts ball type, can, smoothly by solder joint, secondly use small ball to make collection tube more close to tested solder joint, can improve accuracy of detection when adopting the benefit of this kind of design to be that solder joint is uneven.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the stereographic map of inner bag described in the utility model embodiment;
Fig. 2 is a kind of described in the utility model embodiment use schematic diagram of the sealing frock for the leak detection of water heater liner weld seam;
Fig. 3 is the structural representation of rotating mechanism shown in Fig. 2;
The mounting structure figure that Fig. 4 is the size compatibility mechanism of inner bag shown in Fig. 2 and weld seam detection frock;
Fig. 5 is the structural representation of weld seam detection frock shown in Fig. 2 or 4.
Description of reference numerals:
1-weld seam; 2-inflation inlet; 3-weld seam detection frock; 4-rotating mechanism; 5-inner bag size compatibility mechanism; 6-inner bag; 7-inner bag clamping tooling; 8-driving gear; 9-stepper motor; 10-follower gear; 11-cylinder; 12-back up pad; 13-weld seam clamping tooling; 14-collection chamber; 15-collection tube; 16-ball; 71 bearings; 111-guide pole; 112-contiguous block; 131-Long Circle hole.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature being limited with " first ", " second " etc.In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood by concrete condition.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Fig. 1 illustrates the stereographic map of inner bag 6 to be detected, inner bag 6 is provided with twice weld seam 1 and two inflation inlets 2.
With reference to shown in accompanying drawing 2, this sealing frock, comprises rotating mechanism 4, and rotating mechanism 4 is for laying inner bag 6 to be detected; Also comprise inner bag size compatibility mechanism 5 and weld seam detection frock 3; Inner bag size compatibility mechanism 5 to be connected on rotating mechanism 4 and along with rotating mechanism 4 synchronous axial system, and inner bag size compatibility mechanism 5 is placed in the both sides of inner bag 6 away from the end of rotating mechanism 4; Weld seam detection frock 3 is vertically installed in the end of inner bag size compatibility mechanism 5, and the gas that inner bag weld seam 1 is revealed is collected by weld seam detection frock 3 and discharged.
With reference to shown in accompanying drawing 3, particularly, rotating mechanism 4 comprises inner bag clamping tooling 7, driving gear 8, stepper motor 9 and follower gear 10.
Stepper motor 9 is connected with driving gear 8, and driving gear 8 and follower gear 10 are meshed, and inner bag clamping tooling 7 is connected with the gear shaft of follower gear 10 by bearing 71; The advantage of such design to keep tested inner bag 6 to be keeping detecting it under the state fixed to clamp.
Wherein, inner bag clamping tooling 7 is the imitated structure of inner bag 6, for the inner bag 6 that is fixedly clamped; It should be noted that clamp inner bag 6 time must ensure that weld seam 1 is positioned at above inner bag clamping tooling 7.
Necessary, the sidewall of inner bag clamping tooling 7 also having multiple rectangular through holes, when placing inner bag 6, being convenient to observe and install.
Preferably, the reduction gear ratio of driving gear 8 and follower gear 10 is 3:1.
With reference to shown in accompanying drawing 4, size compatibility mechanism 5 comprises cylinder 11, back up pad 12 and weld seam clamping tooling 13; Wherein, have mounting hole in the middle part of back up pad 12, back up pad 12 is connected with follower gear 10 by this mounting hole; Cylinder 11 is placed in back up pad 12, and it is two that cylinder 11 is oppositely arranged, and weld seam clamping tooling 13 is connected with the guide pole 111 of cylinder 11, and weld seam clamping tooling 13 is perpendicular with cylinder 11.
Especially, contiguous block 112 is also provided with between cylinder 11 and back up pad 12; Relevant position has through hole to contiguous block 112, and the guide pole 111 of cylinder 11 is connected with weld seam clamping tooling 13 through through hole; The upper surface of back up pad 12 and the lower surface of weld seam clamping tooling 13 are not in contact with each other.Because weld seam is uneven and there is scale error, by the adjustment pressure regulating valve on cylinder 11, thus the distance controlled between weld seam clamping tooling 13 and weld seam 1, this design can meet the clamping of different size inner bag 6, and the uneven scale error applicability caused of butt welded seam is good.
With reference to shown in accompanying drawing 5, weld seam detection frock 3 comprises collection chamber 14; Collection chamber 14 is two, be arranged at the both sides of weld seam 1 respectively and contact with weld seam 1, collection chamber 14 inside has the through hole collecting hydrogen, collection chamber 14 is provided with collection tube 15 away from the side of weld seam 1, collection tube 15 one end is connected with collection chamber 14 is through, and the other end is connected with hydrogen detector through the through hole on weld seam clamping tooling 13.
For the ease of regulating the relative position of collection chamber 14 and weld seam 1, improve the precision detected, the through hole that weld seam clamping tooling 13 is connected with collection tube 15 is Long Circle hole 131, facilitates butt welded seam to detect the upper and lower adjustment of frock 3.
Further, collection chamber 14 is embedded with multiple ball 16.Can, smoothly by solder joint, ball 16 be secondly used to make collection tube 15 more close to tested weld seam 1, accuracy of detection can be improved when adopting the benefit of this kind of design to be that solder joint is uneven.
Principle of work: first inner bag clamping tooling 7 is fixedly clamped inner bag 6, vacuumizes before carrying out detection to inner bag 6, to reduce hydrogen contained in air, improves accuracy of detection; Automatically 500KPa hydrogen is filled with after vacuum tightness reaches-90KPa; Secondly, the stroke of cylinder 11 can meet the clamping of different size inner bag 6, makes sealing frock clamp inner bag 6 by the pressure regulator valve control cylinder pressure of cylinder 11; Stepper motor 9 drives driving gear 8 to drive follower gear 10, keep tested inner bag 6 under the state fixed to clamp, weld seam detection frock 3 is rotated along with stepper motor 9, and the ball 16 of weld seam detection frock 3 can pass through solder joint smoothly simultaneously, and collection chamber 14 more can close to tested solder joint; The hydrogen that weld seam 1 place leaks enters hydrogen detector by collection chamber 14, collection tube 15 successively; Hydrogen detector detects commissure hydrogen leakage rate and whether is greater than 1 × 10-6Pam3/sec, to confirm that whether inner bag weld seam is qualified.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1., for a sealing frock for water heater liner weld seam leak detection, it is characterized in that: comprise rotating mechanism (4), described rotating mechanism (4) is for laying inner bag (6) to be detected;
Also comprise inner bag size compatibility mechanism (5) and weld seam detection frock (3);
It is upper and along with rotating mechanism (4) synchronous axial system that described inner bag size compatibility mechanism (5) is connected to rotating mechanism (4), and described inner bag size compatibility mechanism (5) is placed in the both sides of inner bag (6) away from the end of rotating mechanism (4);
Described weld seam detection frock (3) is vertically installed in the end of inner bag size compatibility mechanism (5), and the gas that inner bag weld seam (1) is revealed is collected by weld seam detection frock (3) and discharged.
2. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 1, it is characterized in that: described rotating mechanism (4) comprises stepper motor (9) and inner bag clamping tooling (7), the imitated structure that described inner bag clamping tooling (7) is inner bag (6);
Described inner bag clamping tooling (7) is connected with stepper motor (9) by bearing (71).
3. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 1, is characterized in that: described size compatibility mechanism (5) comprises cylinder (11), back up pad (12) and weld seam clamping tooling (13);
Described back up pad (12) middle part has mounting hole, and described stepper motor (9) transmission shaft is connected with described back up pad (12) through mounting hole;
Described cylinder (11) is placed in back up pad (12), described weld seam clamping tooling 13 is connected with the guide pole (111) of cylinder (11), and described weld seam clamping tooling (13) is perpendicular with cylinder (11).
4. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 1, is characterized in that: described weld seam detection frock (3) comprises collection chamber (14);
Described collection chamber (14) contacts with weld seam (1), its inside has the through hole collecting gas, described collection chamber (14) is provided with collection tube (15) away from the side of weld seam (1), described collection tube (15) one end is connected with collection chamber (14) is through, and the other end is connected with external detection equipment through the through hole on weld seam clamping tooling (13).
5. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 2, it is characterized in that: described rotating mechanism (4) also comprises driving gear (8) and follower gear (10), described stepper motor (9) is connected with driving gear (8), and described driving gear (8) and follower gear (10) are meshed.
6. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 3, is characterized in that: be also provided with contiguous block (112) between described cylinder (11) and back up pad (12);
Described contiguous block (112) relevant position has through hole, and the guide pole (111) of described cylinder (11) is connected with weld seam clamping tooling (13) through through hole.
7. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 4, is characterized in that: described collection chamber (14) is embedded with multiple ball (16).
8. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 4, is characterized in that: the upper surface of described back up pad (12) and the lower surface of weld seam clamping tooling (13) are not in contact with each other.
9. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 3, is characterized in that: the through hole that described weld seam clamping tooling (13) is connected with collection tube (15) is Long Circle hole (131).
10. a kind of sealing frock for the leak detection of water heater liner weld seam according to claim 5, is characterized in that: the reduction gear ratio of described driving gear (6) and follower gear (10) is 3:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013209.8U CN205175633U (en) | 2015-12-08 | 2015-12-08 | A sealed frock that is used for water heater inner bag welding seam to hunt leak |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521013209.8U CN205175633U (en) | 2015-12-08 | 2015-12-08 | A sealed frock that is used for water heater inner bag welding seam to hunt leak |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205175633U true CN205175633U (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521013209.8U Withdrawn - After Issue CN205175633U (en) | 2015-12-08 | 2015-12-08 | A sealed frock that is used for water heater inner bag welding seam to hunt leak |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205175633U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403372A (en) * | 2015-12-08 | 2016-03-16 | 天津博益气动股份有限公司 | Sealing tool used for detecting leakage of weld joint of heater inner liner |
| CN111517086A (en) * | 2019-02-01 | 2020-08-11 | 青岛经济技术开发区海尔热水器有限公司 | Input conveying line with pre-positioning function, liner leakage detection system and leakage detection method |
| CN111517085A (en) * | 2019-02-01 | 2020-08-11 | 青岛经济技术开发区海尔热水器有限公司 | Input conveying line, liner leakage detection system and leakage detection method |
-
2015
- 2015-12-08 CN CN201521013209.8U patent/CN205175633U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403372A (en) * | 2015-12-08 | 2016-03-16 | 天津博益气动股份有限公司 | Sealing tool used for detecting leakage of weld joint of heater inner liner |
| CN105403372B (en) * | 2015-12-08 | 2017-10-13 | 天津博益气动股份有限公司 | A kind of sealing frock hunted leak for water heater liner weld seam |
| CN111517086A (en) * | 2019-02-01 | 2020-08-11 | 青岛经济技术开发区海尔热水器有限公司 | Input conveying line with pre-positioning function, liner leakage detection system and leakage detection method |
| CN111517085A (en) * | 2019-02-01 | 2020-08-11 | 青岛经济技术开发区海尔热水器有限公司 | Input conveying line, liner leakage detection system and leakage detection method |
| CN111517085B (en) * | 2019-02-01 | 2022-10-18 | 青岛经济技术开发区海尔热水器有限公司 | Input conveying line, liner leakage detection system and leakage detection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160420 Effective date of abandoning: 20171013 |