CN214793666U - Airtightness detection device for production of aluminum alloy hub of electric vehicle - Google Patents
Airtightness detection device for production of aluminum alloy hub of electric vehicle Download PDFInfo
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- CN214793666U CN214793666U CN202121000720.XU CN202121000720U CN214793666U CN 214793666 U CN214793666 U CN 214793666U CN 202121000720 U CN202121000720 U CN 202121000720U CN 214793666 U CN214793666 U CN 214793666U
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- fixedly connected
- vacuum box
- aluminum alloy
- plate
- detection device
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- 238000001514 detection method Methods 0.000 title claims abstract description 36
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 239000001307 helium Substances 0.000 claims abstract description 29
- 229910052734 helium Inorganic materials 0.000 claims abstract description 29
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000003825 pressing Methods 0.000 claims abstract description 16
- -1 this Chemical compound 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 24
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field of aluminum alloy wheel hub production, in particular to an air tightness detection device for electric vehicle aluminum alloy wheel hub production, which comprises a base, a fixed plate and a connecting plate, the base is fixedly connected with a fixed plate, the fixed plate is fixedly connected with a connecting plate, the top end of the base is fixedly connected with a vacuum box, the inner side of the top end of the vacuum box is connected with an electric telescopic rod in a sliding way, the electric telescopic rod is fixedly connected with a connecting plate, the bottom end of the electric telescopic rod is fixedly connected with a pressing plate, the left side and the right side of the top end of the pressing plate are both fixedly connected with a sliding rod, through the arrangement of the vacuum box, the helium pipe and the mass spectrometer detection pipe, the arrangement is matched with the fixed connection of the vacuum box and the helium pipe and the fixed connection of the vacuum box and the mass spectrometer detection pipe, detect through the helium like this, not only the efficiency that detects is higher, can effectually reduce operating personnel's intensity of labour moreover.
Description
Technical Field
The utility model relates to an aluminum alloy wheel hub produces technical field, specifically is a gas tightness detection device is used in electric motor car aluminum alloy wheel hub production.
Background
The aluminum alloy wheel hub gradually replaces a steel wheel hub due to the advantages of light weight, good heat dissipation, attractive appearance and the like, the aluminum wheel hub is widely concerned as a light-weight product, compared with the steel wheel hub, the aluminum alloy wheel hub has the advantages of light weight, good heat conduction performance, attractive appearance, good operation stability and the like, the aluminum wheel hub is lighter than the steel wheel hub by 2kg on average, the aluminum alloy wheel hub generally adopts a low-pressure casting technology, sand holes can be generated in the casting process, but the sand holes are difficult to see by naked eyes, if air tightness detection is not carried out, the quality of the product is influenced and certain potential safety hazards exist, so that the multi-aluminum alloy wheel hub needs to be subjected to air tightness detection, the air tightness detection is a most direct detection method for the quality safety of the wheel hub, and the air tightness detection usually refers to the fact that parts needing to be detected are placed in a certain sealed geometric container, the helium leakage detecting method is characterized in that the helium leakage detecting method is filled with solid or liquid and is used for detecting the leakage amount within a certain time, the common water-air tightness detecting method is simple, the principle is simple and easy to understand, but the method has the problem of low detection efficiency, the labor intensity of detection personnel is high, and most of the conventional detecting devices are not good in tightness, so that the helium amount entering the inner side of the aluminum alloy hub through sand holes in the aluminum alloy hub is reduced, the actual air tightness of the hub cannot be accurately detected, the detection precision is not very high, meanwhile, the filling amount of the helium cannot be adjusted according to the actual size of the detected hub, the helium waste is easily caused, and the detection precision is not very high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an air tightness detection device is used in electric motor car aluminum alloy wheel hub production to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the air tightness detection device for the production of the aluminum alloy wheel hub of the electric vehicle comprises a base, a fixed plate and a connecting plate, wherein the base is fixedly connected with the fixed plate, the fixed plate is fixedly connected with the connecting plate, the top end of the base is fixedly connected with a vacuum box, the inner side of the top end of the vacuum box is slidably connected with an electric telescopic rod, the electric telescopic rod is fixedly connected with the connecting plate, the bottom end of the electric telescopic rod is fixedly connected with a pressing plate, the left side and the right side of the top end of the pressing plate are fixedly connected with sliding rods, the outer side of each sliding rod is slidably connected with a spring, the springs are fixedly connected with the vacuum box, the springs are fixedly connected with the connecting plate, the pressing plate is slidably connected with the vacuum box, the bottom end of the pressing plate is fixedly connected with a first sealing gasket, the bottom end of the first sealing gasket is slidably connected with the wheel hub, the bottom end of the wheel hub is slidably connected with a second sealing gasket, and the second sealing gasket is fixedly connected with the vacuum box, the sealed inboard fixedly connected with mass spectrometer detection tube that fills up of second, mass spectrometer detection tube and base fixed connection, vacuum chamber right side fixedly connected with helium pipe, helium pipe and fixed plate fixed connection, the terminal surface rotates before the vacuum chamber and is connected with the door.
Preferably, the vacuum box is made of a stainless steel plate.
Preferably, the number of the springs is 2, and the springs are arranged in a left-right symmetrical mode.
Preferably, the parts of the electric telescopic rod, the sliding rod and the mass spectrometer detection tube, which are in contact with the vacuum box, are wrapped by rubber sealing gaskets.
Preferably, the first sealing gasket and the second sealing gasket are both made of polytetrafluoroethylene plates, and the thickness of the first sealing gasket and the thickness of the second sealing gasket are both 5 cm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, the vacuum box, the helium pipe and the mass spectrometer detection pipe are arranged, and the arrangement is matched with the fixed connection of the vacuum box and the helium pipe and the fixed connection of the vacuum box and the mass spectrometer detection pipe, so that the detection is carried out by helium, the detection efficiency is higher, and the labor intensity of operators can be effectively reduced;
2. the utility model discloses in, through clamp plate, slide bar and the spring that sets up, this kind sets up cooperation clamp plate and slide bar fixed connection and slide bar and spring sliding connection, can make detection device like this, when examining, can carry out effectual regulation to the helium charging volume in the vacuum chamber through the removal of clamp plate according to the actual size that detects wheel hub to the use of the helium that can significantly reduce also enables the precision that detects higher.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is the overall structure schematic diagram of the wheel hub of the present invention.
In the figure: 1-base, 2-fixing plate, 3-vacuum box, 4-connecting plate, 5-electric telescopic rod, 6-pressing plate, 7-sliding rod, 8-spring, 9-first sealing gasket, 10-hub, 11-second sealing gasket, 12-mass spectrometer detection tube, 13-helium tube and 14-door.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution:
a gas tightness detection device for production of an aluminum alloy wheel hub of an electric vehicle comprises a base 1, a fixed plate 2 and a connecting plate 4, wherein the base 1 is fixedly connected with the fixed plate 2, the fixed plate 2 is fixedly connected with the connecting plate 4, the top end of the base 1 is fixedly connected with a vacuum box 3, the inner side of the top end of the vacuum box 3 is slidably connected with an electric telescopic rod 5, the electric telescopic rod 5 is fixedly connected with the connecting plate 4, the bottom end of the electric telescopic rod 5 is fixedly connected with a pressing plate 6, the left side and the right side of the top end of the pressing plate 6 are fixedly connected with sliding rods 7, the outer side of each sliding rod 7 is slidably connected with a spring 8, each spring 8 is fixedly connected with the vacuum box 3, each spring 8 is fixedly connected with the connecting plate 4, and the pressing plate 6 is slidably connected with the vacuum box 3, so that the helium filling amount in the vacuum box 3 can be effectively adjusted through movement of the pressing plate 6 according to the actual size of the detection wheel hub 10, and the use of helium can be greatly reduced, also enable the precision that detects higher, the first sealed pad 9 of 6 bottom fixedly connected with of clamp plate, the first sealed pad 9 bottom sliding connection that fills up has wheel hub 10, the sealed pad 11 of wheel hub 10 bottom sliding connection has the second, the sealed pad 11 of second and 3 fixed connection of vacuum chamber, the sealed inboard fixedly connected with mass spectrometer test tube 12 of 11 of second, mass spectrometer test tube 12 and base 1 fixed connection, 3 right side fixedly connected with helium pipe 13 of vacuum chamber, helium pipe 13 and 2 fixed connection of fixed plate, the terminal surface rotates before 3 of vacuum chamber is connected with door 14, detect through the helium like this, not only the efficiency that detects is higher, and can effectual reduction operating personnel's intensity of labour.
The vacuum box 3 is made of stainless steel plates, so that vacuum is realized conveniently, and air tightness detection is facilitated; the number of the springs 8 is 2, and the springs 8 are symmetrically arranged left and right, so that a good rebound and reset effect can be achieved; rubber sealing gaskets are wrapped on the parts of the electric telescopic rod 5, the sliding rod 7 and the mass spectrometer detection tube 12, which are in contact with the vacuum box 3, so that the vacuum box 3 can be ensured to realize vacuum; the first sealing gasket 9 and the second sealing gasket 11 are both made of polytetrafluoroethylene plates, and the thicknesses of the first sealing gasket 9 and the second sealing gasket 11 are both 5cm, so that the air tightness of the hub can be conveniently detected.
The working process is as follows: the electric appliances used by the device are powered by an external power supply, when the device is used, the pressing plate 6 can be driven by the electric telescopic rod 5 to move, so that the size of the space in the vacuum box 3 can be adjusted according to actual needs, the using amount of helium can be effectively saved, after the first sealing gasket 9 and the second sealing gasket 11 are sealed on the hub 10, the vacuum box 3 can be pumped to a vacuum state by the vacuum pump, then helium with the pressure of 2.5-4 bar and the concentration of 5-12% can be filled in the helium pipe 13, when the pressure reaches a set value, the mass spectrometer valve is opened, because the inner cavity is in a vacuum state, if the helium in the outer cavity of the aluminum alloy hub instantly enters the mass spectrometer, the mass spectrometer judges the leakage rate of the hub according to the detected number of helium molecules, the equipment can be compared with the set standard leakage rate, and if the leakage rate is more than or equal to the standard value, the leakage rate is judged to be air leakage, detect through the helium like this, not only the efficiency that detects is higher, can effectually reduce operating personnel's intensity of labour moreover.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an air tightness detection device is used in production of electric motor car aluminum alloy wheel hub, includes base (1), fixed plate (2) and connecting plate (4), its characterized in that: the base (1) is fixedly connected with the fixed plate (2), the fixed plate (2) is fixedly connected with the connecting plate (4), the top end of the base (1) is fixedly connected with the vacuum box (3), the inner side of the top end of the vacuum box (3) is slidably connected with the electric telescopic rod (5), the electric telescopic rod (5) is fixedly connected with the connecting plate (4), the bottom end of the electric telescopic rod (5) is fixedly connected with the pressing plate (6), the left side and the right side of the top end of the pressing plate (6) are fixedly connected with the sliding rods (7), the outer side of the sliding rods (7) is slidably connected with the spring (8), the spring (8) is fixedly connected with the vacuum box (3), the spring (8) is fixedly connected with the connecting plate (4), the pressing plate (6) is slidably connected with the vacuum box (3), and the bottom end of the pressing plate (6) is fixedly connected with the first sealing gasket (9), first sealed pad (9) bottom sliding connection has wheel hub (10), wheel hub (10) bottom sliding connection has the sealed pad (11) of second, the sealed pad (11) of second and vacuum chamber (3) fixed connection, the sealed inboard fixedly connected with mass spectrometer test tube (12) of pad (11) of second, mass spectrometer test tube (12) and base (1) fixed connection, vacuum chamber (3) right side fixedly connected with helium pipe (13), helium pipe (13) and fixed plate (2) fixed connection, the terminal surface rotates before vacuum chamber (3) and is connected with door (14).
2. The airtightness detection device for the production of the aluminum alloy hub of the electric vehicle as claimed in claim 1, wherein: the vacuum box (3) is made of a stainless steel plate.
3. The airtightness detection device for the production of the aluminum alloy hub of the electric vehicle as claimed in claim 1, wherein: the number of the springs (8) is 2, and the springs (8) are arranged in a left-right symmetrical mode.
4. The airtightness detection device for the production of the aluminum alloy hub of the electric vehicle as claimed in claim 1, wherein: the parts of the electric telescopic rod (5), the sliding rod (7) and the mass spectrometer detection tube (12) contacting the vacuum box (3) are all wrapped by rubber sealing gaskets.
5. The airtightness detection device for the production of the aluminum alloy hub of the electric vehicle as claimed in claim 1, wherein: the first sealing gasket (9) and the second sealing gasket (11) are both made of polytetrafluoroethylene plates, and the thicknesses of the first sealing gasket (9) and the second sealing gasket (11) are both 5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121000720.XU CN214793666U (en) | 2021-05-12 | 2021-05-12 | Airtightness detection device for production of aluminum alloy hub of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121000720.XU CN214793666U (en) | 2021-05-12 | 2021-05-12 | Airtightness detection device for production of aluminum alloy hub of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214793666U true CN214793666U (en) | 2021-11-19 |
Family
ID=78693268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121000720.XU Expired - Fee Related CN214793666U (en) | 2021-05-12 | 2021-05-12 | Airtightness detection device for production of aluminum alloy hub of electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214793666U (en) |
-
2021
- 2021-05-12 CN CN202121000720.XU patent/CN214793666U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 Heng Shan Qiao Zhen Xin an Cun, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou Hengcheng New Material Co.,Ltd. Address before: 213000 Heng Shan Qiao Zhen Xin an Cun, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou Hengcheng building adhesive Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |