CN202693224U - Immersion type air leakage testing device for bicycle front fork casting - Google Patents
Immersion type air leakage testing device for bicycle front fork casting Download PDFInfo
- Publication number
- CN202693224U CN202693224U CN2012203653805U CN201220365380U CN202693224U CN 202693224 U CN202693224 U CN 202693224U CN 2012203653805 U CN2012203653805 U CN 2012203653805U CN 201220365380 U CN201220365380 U CN 201220365380U CN 202693224 U CN202693224 U CN 202693224U
- Authority
- CN
- China
- Prior art keywords
- foundry goods
- testing device
- front fork
- base
- leakage testing
- Prior art date
- 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.)
- Withdrawn - After Issue
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 17
- 238000007654 immersion Methods 0.000 title abstract description 5
- 238000005266 casting Methods 0.000 title abstract 7
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000002791 soaking Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract 4
- 238000004458 analytical method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses an immersion type air leakage testing device for a bicycle front fork casting. The immersion type air leakage testing device comprises a base and a frame fixed on the upper part of the base, wherein a plurality of positioning blocks for fixing a to-be-tested casting are arranged in the middle of the upper part of the base, a pressing and holding cylinder is fixedly arranged on the lower part of the frame opposite to the positioning blocks, and the lower part of the pressing and holding cylinder is in driving connection with a pressing and holding block for pressing the to-be-tested casting in the vertical direction; a group of sealing cylinders are fixedly arranged on the frame at one end of the base, and each sealing cylinder is in driving connection with an adapter for pushing the to-be-tested casting transversely in the directions of the positioning blocks; and a group of sealing pads, which correspond to the sealing cylinders, are fixedly arranged on the frame at the other end of the base, a ventilating pipeline is arranged on each sealing pad, and the ventilating pipeline is communicated with an air inlet of the frame. By the immersion type air leakage testing device, unstable factors in the production process are eliminated, air leakage conditions of the front fork casting are accurately determined, specific air leakage parts of the casting are simultaneously determined, and bases are provided for statistic analyses of undesirable phenomena.
Description
Technical field
The utility model relates to a kind of gas leakage fixture for testing, specifically, relates to a kind of soaking type gas leakage device for testing of bicycle front fork class foundry goods.
Background technology
Development along with technology, the demand of lightweight bicycle and requirement are also more and more higher, magnesium alloy front fork foundry goods is widely applied on the high-end bicycle, because its hydraulic shock-absorption functional requirement requires magnesium alloy front fork foundry goods must possess characteristic non-leakage under certain pressure.
In the existing gas leakage test process, employing be the mode of the dry-type leak hunting of differential pressure type is leaked hunting, judge whether leaking gas of foundry goods by equipment pressure monitoring function when leaking hunting.But weak point is exactly: 1, when the gas return path of leak-checking apparatus gas leakage occurs or because poorly sealed when causing leaking gas, equipment can not made early warning, all can be decided to be foundry goods gas leakage by erroneous judgement; 2, even foundry goods itself leaks gas, also be not easy to judge the position of gas leakage, make troubles for analyzing to improve.
Summary of the invention
In order to overcome defects, the utility model provides a kind of soaking type leakage testing device of bicycle front fork class foundry goods, can solve the labile factor in the production, judge more accurately whether the front fork foundry goods leaks gas, and judge simultaneously the concrete air leak position of foundry goods, for the statistical study of doing bad phenomenon provides foundation.
The utility model for the technical scheme that solves its technical matters and adopt is: a kind of soaking type leakage testing device of bicycle front fork class foundry goods, comprise base and the framework that is fixed in the base top, the position is provided with some locating pieces for fixing tested foundry goods in the middle of on the described base, described framework is fixed with a pressure holding cylinder over against the below, position of locating piece, and the below of pressure holding cylinder drives connection one and is used for the pressure holding piece that vertical direction pushes against tested foundry goods; Be fixed with one group of sealing cylinder on the framework of described base one side, described each sealing cylinder drives towards the locating piece direction and connects one for the adapter that laterally promotes tested foundry goods; Corresponding sealing cylinder is fixed with one group of seal block on the framework of described base opposite side, described each seal block is provided with a vent line, vent line is communicated with air intake opening on the framework, and described air intake opening, vent line, locating piece upper surface and adapter are on the same level face.
As further improvement of the utility model, described adapter is provided with the movable sealing piece that cooperates with tested foundry goods, and the junction of described seal block and tested foundry goods is provided with O-ring seal.
As further improvement of the utility model, described movable sealing piece is made by the abrasive rubber material, and the movable sealing piece is provided with to connect and use screw thread, is convenient to replacing.
As further improvement of the utility model, described base is provided with three locating pieces, and concrete air leak position is more conveniently found out in the even interval of each locating piece.
As further improvement of the utility model, the diameter of described vent line is 5mm.
The beneficial effects of the utility model are:
1. aspect relative locations of structures relation: leak-checking apparatus of the present utility model is framed structure, its lower shoe and body side frame are used for fixing locating device and auxiliary sealing device, the top of framework is used for fixing clamping cylinder, and link to each other with the external drive cylinder by syndeton, realizing moving up and down of a whole set of anchor clamps, and then realize the action of immersion and water outlet, in addition, locating block device changes three stage structure into, the gas leakage situation of more convenient observation foundry goods.
2. aspect judgement gas leakage mode: leak-checking apparatus Main Function of the present utility model is tested foundry goods clamping is had good positioning, and by the inflating pressure function of outside electric control gear realization to product die cavity inside, after being pressurized to the pressure of appointment, the external control device is immersed in the water its integral body, whether there is the mode that bubble is emerged to determine whether gas leakage by observing in the water, can determines intuitively the position of gas leakage and the order of severity of gas leakage.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the synoptic diagram of the tested foundry goods of the utility model.
Embodiment
In order to deepen understanding of the present utility model, the utility model is described in further detail below in conjunction with embodiment and accompanying drawing, and this embodiment only is used for explaining the utility model, does not consist of the restriction to the utility model protection domain.
Fig. 1-2 has shown a kind of embodiment of the soaking type leakage testing device of a kind of bicycle front fork class of the utility model foundry goods, comprise base 1 and the framework 2 that is fixed in base 1 top, the position is provided with some locating pieces 3 for fixing tested foundry goods in the middle of on the described base 1, described framework 2 is fixed with a pressure holding cylinder 4 over against the below, position of locating piece 3, and the below of pressure holding cylinder 4 drives connection one and is used for the pressure holding piece 5 that vertical direction pushes against tested foundry goods; Be fixed with one group of sealing cylinder 6 on the framework 2 of described base 1 one sides, described each sealing cylinder 6 drives towards locating piece 3 directions and connects one for the adapter 7 that laterally promotes tested foundry goods; Corresponding sealing cylinder 6 is fixed with one group of seal block 8 on the framework 2 of described base 1 opposite side, described each seal block 8 is provided with a vent line 9, vent line 9 is communicated with air intake opening 10 on the framework, described air intake opening 10, vent line 9, locating piece 3 upper surfaces and adapter 7 are on the same level face, described adapter 7 is provided with the movable sealing piece 11 that cooperates with tested foundry goods, described seal block 8 is provided with O-ring seal 12 with the junction of tested foundry goods, described movable sealing piece 11 is made by the abrasive rubber material, and movable sealing piece 11 is provided with to connect uses screw thread, described base 1 is provided with three locating pieces 3, each locating piece 3 even interval, the diameter of described vent line 9 is 5mm.
The specific operation process of present embodiment is as follows, before beginning to leak hunting, whole device is positioned at more than the water surface, at first tested foundry goods is put on the locating piece 3 in the mode of Fig. 1 and strains to seal block 8 directions simultaneously, press driving switch, pressure holding cylinder 4 ejects and utilizes pressure holding piece 5 that the front fork of tested foundry goods is fixed, and next electric control gear driving sealing cylinder 6 ejects forward, utilizes the movable sealing piece that the large port envelope of 11 front forks is tight; Next, electric control gear drives into device of air by inflation in 10 pairs of calibers of air intake opening, continues pressurize after pressure reaches expecting pressure; Next electric control gear driving outer inside casing is immersed in the water a whole set of chucking appliance system, keep 30S, this moment, the tester observed whether tested foundry goods position has bubble to emerge in the water, emerging if any bubble then proves the gas leakage of this front fork, otherwise this judgement front fork is air tight. this chucking appliance system is pulled out the water surface by external device behind the 30s, simultaneously air inlet stops, and sealing cylinder 6 retreats in order, and pulling movable sealing piece 11 withdraws from; Next pressure holding cylinder 4 retreats, and pulling pressure holding piece 5 retreats, and this moment, tested foundry goods was in the front state of clamping, and the operator directly takes out it and namely finishes this test loop.
Claims (5)
1. the soaking type leakage testing device of a bicycle front fork class foundry goods, it is characterized in that: comprise base (1) and be fixed in the framework (2) of base (1) top, the position was provided with some locating pieces (3) for fixing tested foundry goods in the middle of described base (1) was upper, described framework (2) is fixed with a pressure holding cylinder (4) over against the below, position of locating piece (3), and the below of pressure holding cylinder (4) drives connection one and is used for the pressure holding piece (5) that vertical direction pushes against tested foundry goods; Be fixed with one group of sealing cylinder (6) on the framework (2) of described base (1) one side, described each sealing cylinder (6) drives towards locating piece (3) direction and connects one for the adapter (7) that laterally promotes tested foundry goods; The upper corresponding sealing cylinder (6) of the framework (2) of described base (1) opposite side is fixed with one group of seal block (8), described each seal block (8) is provided with a vent line (9), vent line (9) is communicated with air intake opening (10) on the framework, and described air intake opening (10), vent line (9), locating piece (3) upper surface and adapter (7) are on the same level face.
2. the soaking type leakage testing device of bicycle front fork class foundry goods according to claim 1, it is characterized in that: described adapter (7) is provided with the movable sealing piece (11) that cooperates with tested foundry goods, and described seal block (8) is provided with O-ring seal (12) with the junction of tested foundry goods.
3. the soaking type leakage testing device of bicycle front fork class foundry goods according to claim 2, it is characterized in that: described movable sealing piece (11) is made by the abrasive rubber material, and movable sealing piece (11) is provided with to connect and uses screw thread.
4. the soaking type leakage testing device of bicycle front fork class foundry goods according to claim 1, it is characterized in that: described base (1) is provided with three locating pieces (3), and each locating piece (3) is the interval evenly.
5. the soaking type leakage testing device of bicycle front fork class foundry goods according to claim 1, it is characterized in that: the diameter of described vent line (9) is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203653805U CN202693224U (en) | 2012-07-26 | 2012-07-26 | Immersion type air leakage testing device for bicycle front fork casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203653805U CN202693224U (en) | 2012-07-26 | 2012-07-26 | Immersion type air leakage testing device for bicycle front fork casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202693224U true CN202693224U (en) | 2013-01-23 |
Family
ID=47548828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203653805U Withdrawn - After Issue CN202693224U (en) | 2012-07-26 | 2012-07-26 | Immersion type air leakage testing device for bicycle front fork casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202693224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749177A (en) * | 2012-07-26 | 2012-10-24 | 昆山美和机械有限公司 | Submerged air leakage test device for bicycle front fork casts |
| CN104713683A (en) * | 2014-12-15 | 2015-06-17 | 贵州安吉航空精密铸造有限责任公司 | Airtightness detection tool for castings |
-
2012
- 2012-07-26 CN CN2012203653805U patent/CN202693224U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749177A (en) * | 2012-07-26 | 2012-10-24 | 昆山美和机械有限公司 | Submerged air leakage test device for bicycle front fork casts |
| CN102749177B (en) * | 2012-07-26 | 2015-03-11 | 昆山美和机械有限公司 | Submerged air leakage test device for bicycle front fork casts |
| CN104713683A (en) * | 2014-12-15 | 2015-06-17 | 贵州安吉航空精密铸造有限责任公司 | Airtightness detection tool for castings |
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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 |
Granted publication date: 20130123 Effective date of abandoning: 20150311 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130123 Effective date of abandoning: 20150311 |
|
| RGAV | Abandon patent right to avoid regrant |