CN207556769U - A kind of helium leak check tooling - Google Patents
A kind of helium leak check tooling Download PDFInfo
- Publication number
- CN207556769U CN207556769U CN201721300814.2U CN201721300814U CN207556769U CN 207556769 U CN207556769 U CN 207556769U CN 201721300814 U CN201721300814 U CN 201721300814U CN 207556769 U CN207556769 U CN 207556769U
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- China
- Prior art keywords
- helium
- water pipe
- cooling water
- leak check
- sealing element
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Abstract
The utility model provides a kind of helium leak check tooling, it is placed in vacuum chamber, for carrying out helium leak check to 3U assemblies, including 3U assembly fixing brackets, cooling water pipe sealing and plugging mechanism and helium injection gas sealing mechanism, 3U assemblies are placed on the 3U assemblies fixing bracket, the cooling water pipe sealing and plugging mechanism connects a cooling water pipe and seals cooling water pipe entrance, the helium injection gas sealing mechanism connects another cooling water pipe and seals cooling water pipe entrance, helium is passed through by the channel of helium injection gas sealing mechanism inside cooling water pipe, it is passed through inside cooling water pipe by detection, by leaking into the helium in external environment during cooling pipe, realize the leak detection of helium.Helium leak check tooling provided by the utility model is installed in vacuum helium leak check babinet, for detecting whether 3U assemblies leak.
Description
Technical field
The utility model is related to vacuum helium leak check technical fields, and in particular, to a kind of helium leak check tooling.
Background technology
At present, helium vacuum leak hunting equipment is detected the sealing means that are loaded of workpiece and is divided into manually and automatically two ways.
Manual mode is often used for small lot production or experimental development stage.Automation is loaded sealing means commonly used in high-volume life
Production.Often the low airtight quality of precision is unstable for installation manually.This is the common fault of the manual tooling of current helium leak check.
Utility model content
For drawbacks described above of the prior art, the purpose of this utility model is to provide a kind of helium leak check tooling, action
Precision is high, favorable sealing property, can smoothly complete the work of 3U assemblies helium leak check.
In order to achieve the above objectives, technical solution is as follows used by the utility model：
A kind of helium leak check tooling, is placed in vacuum chamber, total including 3U for carrying out helium leak check to 3U assemblies
Into fixing bracket, cooling water pipe sealing and plugging mechanism and helium injection gas sealing mechanism, 3U is placed on the 3U assemblies fixing bracket
Assembly, the cooling water pipe sealing and plugging mechanism connect a cooling water pipe and seal cooling water pipe entrance, and the helium injection is airtight
Sealing mechanism connects another cooling water pipe and seals cooling water pipe entrance, and helium is passed through cold by the channel of helium injection gas sealing mechanism
But it inside water pipe, is passed through inside cooling water pipe, by leaking into the helium in external environment during cooling pipe, realized by detection
The leak detection of helium.
The 3U assemblies fixing bracket includes installing plate, installation locating piece on a mounting board and under installing plate
Lower margin, the fixed block being capable of thrust of the resistant function on 3U assemblies.
The installing plate is made of aluminium alloy, and the locating piece is made of nylon, and the lower margin is made of rubber.
There are certain interval, convenient installation 3U assemblies manually between the 3U assemblies fixing bracket and 3U assemblies.
The cooling water pipe sealing and plugging mechanism includes sealing element I and sealing element I is pushed into the close of cooling water pipe nozzle
I pushing mechanism of sealing.
The helium injection gas sealing mechanism includes sealing element II, for the supporting rack of installing sealing element II and by sealing element II
II pushing mechanism of sealing element of cooling water pipe nozzle is pushed into, channel is set in support frame as described above, helium is passed through in cooling water pipe,
Pipe thread hole is provided in the middle part of supporting rack, for connecting sleeve connector, ferrule fitting and the helium injection feed channel for being connected to vacuum chamber
Connection, supporting rack pass behind screw rod and are connected with II pushing mechanism of sealing element.II pushing mechanism of sealing element provides stroke and pushes away
Sealing element II is pushed into cooling water pipe by power.
The sealing element I or sealing element II are rubber taper plug, offset plate or O-ring.
I pushing mechanism of sealing element or II pushing mechanism of sealing element be Manual push mechanism, pneumatic, electric pushrod or
Electromagnetic propulsion mechanism.
The Manual push mechanism is folder elbow, bolt or inclined-plane.
Helium leak check tooling provided by the present invention, by setting cooling water pipe sealing and plugging mechanism and helium injection hermetic seal
Mechanism, favorable sealing property, accuracy of detection is high, can smoothly complete the work of 3U assemblies helium leak check.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon：
Fig. 1 is helium leak check tool structure schematic diagram provided by the utility model；
Fig. 2 is the utility model helium injection gas sealing mechanism structure diagram.
Specific embodiment
The utility model is described in detail with reference to specific embodiment.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made.
These belong to the scope of protection of the utility model.
Shown in Fig. 1, Fig. 2, a kind of vacuum helium leak check tooling provided by the utility model is made of three parts.Specifically：
First, 3U assemblies fixing bracket
Including：Rubber feet 1, is made of rubber, prevents from shaking the interference to testing result.Installing plate 2 is pacified for fixed
3U assemblies are filled, are made of aluminium alloy, light-weight convenience is carried manually.It is a kind of very suitable true less to deflate in aluminum alloy vacuum
Sky material.Locating piece 3, is made of nylon, and nylon is softer than the Al-alloy casing of 3U assembly, prevents aluminum alloy surface of damaging.
Fixed block 3 can resist folder elbow and push the thrust that seal head is acted on 3U products.3U assemblies fixing bracket has one with 3U assemblies
The convenient installation 3U assemblies manually of fixed gap.
2nd, cooling water pipe sealing and plugging mechanism
Including：Elbow 4 is pressed from both sides, for pushing rubber taper seal plug, sealing plate and sealing ring etc. seal one of cooling
Pipe inlet.Suitable pressure is pressed in the nozzle of cooling water pipe, inside section and pipe.For sealing cooling water pipe.Rubber taper
Plug 5, is made of silica gel, and shape is cone.Cooling water pipe is sealed with the outer wall of circular cone.
3rd, helium injection gas sealing mechanism
Including：O-ring supporting rack 6 for mounting O-shaped rings, there is a channel inside supporting rack, helium can be passed through to cooling
In water pipe.Pipe thread hole is provided in the middle part of supporting rack, for connecting sleeve connector, ferrule fitting is connect with helium injection feed channel.Cutting ferrule
Connector is a kind of whether good connector of sealing performance.Supporting rack passes behind screw rod and is connected with folder elbow.Folder elbow provides manually
O-ring seal is pushed into another cooling water pipe by stroke and thrust, and water pipe is sealed with O-ring seal.The rebound of O-ring seal
Pipe inner wall and supporting rack seal groove sealed bottom are realized sealing function by power.O-ring seal 7 is viton seal ring,
Its feature be it is good to gas seal property, it is wear-resisting.If the helium being passed through inside cooling water pipe is leaked by cooling pipe
It can be found in external environment by helium atom detector, realize the function of helium leak check.
During work, the helium leak check tooling is put into vacuum chamber first, connects helium pipeline.Carry out other preparations
Work.Such as check whether babinet vaccum seal ring is good.Then manually 3U assemblies are put on tooling bracket.Check whether peace
It keeps steady in place.Whether cooling water pore is directed at cone seal plug and O-ring supporting rack.If alignment, moves rubber taper
The folder elbow handle of seal plug.Rubber taper seal plug is allowed to be tightly pressed against a water pipe sealing hole end surface.Folder elbow handle is moved
Left end.The self-locating function of folder elbow is allowed to act.Then the folder elbow handle of mounting O-shaped sealing ring supporting rack is moved.It allows O-shaped
Sealing ring is inserted into inside cooling water pipe.It moves folder elbow handle to left end, the self-positioning work of folder elbow is allowed to act.Then it closes
The door of vacuum chamber is closed, then babinet is vacuumized.Vacuum degree starts to carry out helium leak check work to 3U assemblies after reaching requirement.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (9)
1. a kind of helium leak check tooling, is placed in vacuum chamber, for carrying out helium leak check to 3U assemblies, which is characterized in that
Including 3U assemblies fixing bracket, cooling water pipe sealing and plugging mechanism and helium injection gas sealing mechanism, the 3U assemblies fixing bracket
Upper placement 3U assemblies, the cooling water pipe sealing and plugging mechanism connects a cooling water pipe and seals cooling water pipe entrance, described
Helium injection gas sealing mechanism connects another cooling water pipe and seals cooling water pipe entrance, and helium passes through the logical of helium injection gas sealing mechanism
Road is passed through inside cooling water pipe, is passed through inside cooling water pipe, by detection by being leaked into external environment during cooling pipe
Helium realizes the leak detection of helium.
2. helium leak check tooling according to claim 1, which is characterized in that the 3U assemblies fixing bracket includes installation
Plate, the installation locating piece on a mounting board and lower margin under installing plate, the fixed block can resistant function in 3U
Thrust on assembly.
3. helium leak check tooling according to claim 2, which is characterized in that the installing plate is made of aluminium alloy, described
Locating piece is made of nylon, and the lower margin is made of rubber.
4. helium leak check tooling according to claim 2, which is characterized in that the 3U assemblies fixing bracket and 3U assemblies it
Between have a certain interval, convenient installation 3U assemblies manually.
5. helium leak check tooling according to claim 1, which is characterized in that the cooling water pipe sealing and plugging mechanism includes
Sealing element I and I pushing mechanism of sealing element that sealing element I is pushed into cooling water pipe nozzle.
6. helium leak check tooling according to claim 1, which is characterized in that the helium injection gas sealing mechanism includes sealing element
IIth, II pushing mechanism of sealing element of cooling water pipe nozzle is pushed into for the supporting rack of installing sealing element II and by sealing element II,
Setting channel, helium is passed through in cooling water pipe in support frame as described above, pipe thread hole is provided in the middle part of supporting rack, for connecting sleeve
Connector, ferrule fitting are connect with being connected to the helium injection feed channel of vacuum chamber, and supporting rack passes behind screw rod and pushed away with sealing element II
Motivation structure is connected, and II pushing mechanism of sealing element provides stroke and sealing element II is pushed into cooling water pipe by thrust.
7. helium leak check tooling according to claim 4 or 5, which is characterized in that the sealing element I or sealing element II are rubber
Glue taper plug, offset plate or O-ring.
8. helium leak check tooling according to claim 4 or 5, which is characterized in that sealing element I pushing mechanism or close
II pushing mechanism of sealing is Manual push mechanism, pneumatic, electric pushrod or electromagnetic propulsion mechanism.
9. helium leak check tooling according to claim 8, which is characterized in that the Manual push mechanism is folder elbow, bolt
Or inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721300814.2U CN207556769U (en) | 2017-10-10 | 2017-10-10 | A kind of helium leak check tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721300814.2U CN207556769U (en) | 2017-10-10 | 2017-10-10 | A kind of helium leak check tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207556769U true CN207556769U (en) | 2018-06-29 |
Family
ID=62675430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721300814.2U Active CN207556769U (en) | 2017-10-10 | 2017-10-10 | A kind of helium leak check tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207556769U (en) |
-
2017
- 2017-10-10 CN CN201721300814.2U patent/CN207556769U/en active Active
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