CN202901587U - Argon-arc-welding exhaust pipe structure and exhaust pipe with the same - Google Patents
Argon-arc-welding exhaust pipe structure and exhaust pipe with the same Download PDFInfo
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- CN202901587U CN202901587U CN 201220393474 CN201220393474U CN202901587U CN 202901587 U CN202901587 U CN 202901587U CN 201220393474 CN201220393474 CN 201220393474 CN 201220393474 U CN201220393474 U CN 201220393474U CN 202901587 U CN202901587 U CN 202901587U
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- exhaust pipe
- pipe structure
- arc welding
- welding
- argon arc
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Abstract
The utility model discloses an argon-arc-welding exhaust pipe structure and an exhaust pipe with the argon-arc-welding exhaust pipe structure. The argon-arc-welding exhaust pipe structure comprises a connecting sleeve and two flanges. Each flange comprises a body and a mounting portion fixed at one end of the body; each mounting portion of the mounting portion is provided with a mounting surface; the two mounting portions are fixed up and down, and are mutually pressed; each body is provided with a channel, wherein the connecting sleeve can pass through the channel, and is contained in the channels of the two flanges; the outer diameter direction of the connecting sleeve is provided with a ring-shaped step portion in an integral forming mode; and the outer diameter of the step portion equals to the inner diameter of each flange. The argon-arc-welding exhaust pipe structure and the exhaust pipe with the argon-arc-welding exhaust pipe structure has that advantages that because a producing process is added when the argon-arc-welding exhaust pipe structure is welded, risks produced when the whole pipe is welded are transferred, welding difficulties of the whole pipe are reduced, when the whole pipe is welded, impact of the exhaust pipe to welding quality is avoided, and welding reliability is improved. The exhaust pipe with the argon-arc-welding exhaust pipe structure simplifies welding process of the whole pipe and can guarantee vacuum gas tightness of the structure.
Description
Technical field
The utility model relates to a kind of outlet pipe, especially relates to a kind of outlet pipe with argon arc welding exhaust pipe structure that is applied to the outer part of travelling wave valve pipe.
Background technique
Travelling wave valve is vacuum electron device, and inside is generally vacuum state, and inner electronics and the interaction of peripheral circuits produce signal amplification and conversion.Vacuum is pumped in travelling wave valve inside before powering up work, and residual gas is generally 10
-6Pa.This pumping process is referred to as exhaust, exactly the travelling wave valve internal gas is taken out.The internal structure temperature is high during travelling wave valve work, can emit gas, affects degree of vacuum, so in exhaust process travelling wave valve is toasted, removes internal gas in exhaust process, keeps high vacuum state when making internal work.
The realization of exhaust air technique mainly is to connect outlet pipe in travelling wave valve and gas outlet means, is bled by outlet pipe.Because travelling wave valve inside is high vacuum, need to carry out long exhaust, this just requires the connection between travelling wave valve and the outlet pipe to have vacuum-tightness.Outlet pipe generally at the electron gun end of travelling wave valve, becomes assembly with exhaust pipe-shaped first, then welds with electron gun, and welding forms the travelling wave valve for the treatment of exhaust to last electron gun with the slow wave parts again.Carry out electron gun and slow wave parts when welding, outlet pipe is slim-lined construction, and comprises a plurality of combs, titanium pump, briquetting etc., and electron gun integrally welded after, the putting position the when installation during the impact welding, fixing and welding brings a lot of inconvenience to welding.Oversize when travelling wave valve simultaneously, position while welding does not observe the place at viewing window, can affect the quality of welding, and the reliability of welding is brought very large uncertainty.
The model utility content
In view of this, be necessary to provide a kind of electron gun and the argon arc welding exhaust pipe structure of slow wave parts welding and outlet pipe with this argon arc welding exhaust pipe structure be convenient to.
The utility model is to realize like this, a kind of argon arc welding exhaust pipe structure, it is used for connecting two bodys and forms outlet pipe, this argon arc welding exhaust pipe structure comprises connecting sleeve and symmetrical and fixing two flanges up and down, each flange comprises body and is fixed on assembly department on this body one end, each assembly department is provided with attachment face, one of them end face of each body and corresponding attachment face are at grade, these two assembly departments are fixing and these two mutual pressure holdings of attachment face up and down, each body offers the passage that passes through for this connecting sleeve, this connecting sleeve is housed in the passage of these two flanges, the one-body molded stepped part that has in the form of a ring on the external diameter direction of this connecting sleeve, the outer diameter of this stepped part is identical with the inner diameter of each flange.
As the further improvement of such scheme, these two assembly departments are away from an end argon arc welding of these two bodies.
As the further improvement of such scheme, each assembly department and corresponding this body by integral forming.
As the further improvement of such scheme, each assembly department and the accordingly curved transition of joining place of body.
As the further improvement of such scheme, the bending radius of the joining place of curved transition is not more than 0.5mm.
As the further improvement of such scheme, the wall thickness of this connecting sleeve is not less than 0.4mm.
The invention still further relates to a kind of outlet pipe, it is equipped with the argon arc welding exhaust pipe structure, this argon arc welding exhaust pipe structure is used for connecting two bodys and forms this outlet pipe, this argon arc welding exhaust pipe structure comprises connecting sleeve and symmetrical and fixing two flanges up and down, each flange comprises body and is fixed on assembly department on this body one end, each assembly department is provided with attachment face, one of them end face of each body and corresponding attachment face are at grade, these two assembly departments are fixing and these two mutual pressure holdings of attachment face up and down, each body offers the passage that passes through for this connecting sleeve, this connecting sleeve is housed in the passage of these two flanges, the one-body molded stepped part that has in the form of a ring on the external diameter direction of this connecting sleeve, the outer diameter of this stepped part is identical with the inner diameter of each flange.
As the further improvement of such scheme, these two assembly departments are away from an end argon arc welding of these two bodies.
As the further improvement of such scheme, each assembly department and corresponding this body by integral forming.
As the further improvement of such scheme, each assembly department and the accordingly curved transition of joining place of body.
As the further improvement of such scheme, the bending radius of the joining place of curved transition is not more than 0.5mm.
As the further improvement of such scheme, the wall thickness of this connecting sleeve is not less than 0.4mm.
Further improvement as such scheme, this outlet pipe comprises two bodys, the end face of these two bodys is held on the both sides step of stepped part of this argon arc welding exhaust pipe structure, the two ends of these two bodys are by flange and the connecting sleeve clamping of this argon arc welding exhaust pipe structure, and this argon arc welding exhaust pipe structure connects these two bodys and forms this outlet pipe.
As the further improvement of such scheme, on the centerline direction perpendicular to this connecting sleeve, the thickness of this stepped part is identical with the pipe thickness of each body.
As the further improvement of such scheme, the internal diameter of this stepped part less than the internal diameter of each body and between the gap scope be 0.1 ~ 0.2mm, the external diameter of this stepped part less than the internal diameter of the body of each flange and between the gap scope be 0.05 ~ 0.1mm.
The utility model has the advantage of: the argon arc welding exhaust pipe structure increases by one welding process when welding, risk when having shifted the homogeneous tube welding, reduce homogeneous tube welding difficulty, avoid the impact of outlet pipe welding quality when homogeneous tube welds, improved the welding reliability, adopt the outlet pipe of this structure, simplify the homogeneous tube welding procedure, can guarantee the structure for vacuum tightness.
Description of drawings
The part-structure schematic representation of the outlet pipe that Fig. 1 provides for the utility model preferred embodiments.
Fig. 2 is outlet pipe and flange part structural representation.
Fig. 3 is the structural representation of connecting sleeve among Fig. 1.
Fig. 4 is the structural representation of flange among Fig. 1.
Main symbol description: body 1, connecting sleeve 2, flange 3, body 31, assembly department 32, attachment face 320, passage 33, stepped part 21.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1 and Fig. 2, the structural representation of the outlet pipe that it provides for the utility model preferred embodiments.Outlet pipe comprises two bodys 1 and argon arc welding exhaust pipe structure, and the argon arc welding exhaust pipe structure comprises connecting sleeve 2 and symmetrical and fixing two flanges 3 up and down.
Please in conjunction with Fig. 3 and Fig. 4, each flange 3 comprises body 31 and is fixed on assembly department 32 on body 31 1 ends, each assembly department 32 is provided with attachment face 320, one of them end face of each body 31 and corresponding attachment face 320 at grade, each body 31 offers the passage 33 that passes through for connecting sleeve 2.The one-body molded stepped part 21 that has in the form of a ring on the external diameter direction of connecting sleeve 2, the outer diameter of stepped part 21 is identical with the inner diameter of each flange 3.Two assembly departments 32 are away from an end argon arc welding of two bodies 31, each assembly department 32 is one-body molded with corresponding body 31, each assembly department 32 and the accordingly curved transition of joining place of body 31, the bending radius of the joining place of curved transition is not more than 0.5mm.
In the present embodiment, flange 3 thin walled structuress, as shown in Figure 4, oxygenless copper material, employing thickness is that the sheet material spinning between the 0.15-0.3mm forms, and bends to 90 degree structures from top to bottom, and bending radius is not more than 0.5mm, flange 3 internal diameters are all consistent with the external diameter of body 1, stepped part 21, and the flange 3 that use both sides is measure-alike.
In the present embodiment, connecting sleeve 2 cylinder modes, as shown in Figure 3, and oxygenless copper material, stepped part 21 sizes of external diameter direction, are generally less than flange 3 internal diameter 0.05-0.1mm less than flange 3 internal diameters greater than body 1 internal diameter.Stepped part 21 both sides size external diameters are generally less than body 1 internal diameter 0.1-0.2mm less than body 1 internal diameter.For guaranteeing venting capacity, the internal diameter of connecting sleeve 2 is large as much as possible, but the wall thickness minimum of connecting sleeve 2 is not less than 0.4mm.
The principle of technical solutions of the utility model: be the problem (such as the background technique introduction) of avoiding electron gun and slow wave parts when welding to occur, we adopt outlet pipe are divided into i.e. two bodys 1 of two-part, one of them body 1 and electron gun weld first, after electron gun and slow-wave component welding, again two bodys 1 are linked together, the argon arc welding exhaust pipe structure will and be provided, comprise flange 3, connecting sleeve 2, adopt argon arc welding, two sections bodys 1 are connected into overall structure, guarantee vacuum-tightness.
Particularly, former integrally-built outlet pipe is divided into two-part, 1 one elder generations of body and homogeneous tube after separating weld, and form the integral body of vacuum tight; Another body 1 and exhaust station structure match.During welding, body 1 and flange 3 weld first (as shown in Figure 2), form the integral body of vacuum-tightness.Connecting sleeve 2 two ends are inserted into respectively two bodys, 1 inside, and body 1 end face arrives on the step of stepped part 21 of connecting sleeve 2, and two flange 3 bottom surfaces that connect body 1 touch (i.e. two attachment face 320 mutual pressure holdings).Two side flanges, 3 shapes are identical, and after the bottom surface was adjacent to, it is consistent that end face overlaps external diameter, are easy to carry out argon arc welding at the outside diameter of flange 3.Behind the argon arc welding, body 1 and homogeneous tube form reliable one.
The implementation step is as follows: determine the comb disconnected position, on the outlet pipe that this position is in electron gun is connected, be not less than 40mm from the length of electron gun position.The other end comb separately is connected to exhaust station together with titanium pump assembly, briquetting etc., and the position after flange 3 welding as shown in Figure 2.The position of stepped part 21 in flange 3 and the body 1 is cooperated, adopts soldering to carry out the tightness welding in the cooperation place, this place be welded as argon arc welding before carry out.Connecting sleeve 2 two ends are inserted in two body 1 inside, and the end face of body 1 arrives on the step of stepped part 21 of connecting sleeve 2, and the bottom surface (being attachment face 320) that connects two flanges 3 of body 1 touch.Two side flanges, 3 shapes are identical, and after the bottom surface was adjacent to, it is consistent that end face overlaps external diameter.Argon arc welding is carried out in the external diameter outside at flange 3.
The argon arc welding exhaust pipe structure increases by one welding process when welding, risk when having shifted the homogeneous tube welding, reduce homogeneous tube welding difficulty, avoid the impact of outlet pipe welding quality when homogeneous tube welds, improved the welding reliability, adopt the outlet pipe of this structure, simplify the homogeneous tube welding procedure, can guarantee the structure for vacuum tightness.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. argon arc welding exhaust pipe structure, it is used for connecting two bodys and forms outlet pipe, it is characterized in that, this argon arc welding exhaust pipe structure comprises connecting sleeve and symmetrical and fixing two flanges up and down, each flange comprises body and is fixed on assembly department on this body one end, each assembly department is provided with attachment face, one of them end face of each body and corresponding attachment face are at grade, these two assembly departments are fixing and these two mutual pressure holdings of attachment face up and down, each body offers the passage that passes through for this connecting sleeve, this connecting sleeve is housed in the passage of these two flanges, the one-body molded stepped part that has in the form of a ring on the external diameter direction of this connecting sleeve, the outer diameter of this stepped part is identical with the inner diameter of each flange.
2. a kind of argon arc welding exhaust pipe structure as claimed in claim 1 is characterized in that, these two assembly departments are away from an end argon arc welding of these two bodies.
3. a kind of argon arc welding exhaust pipe structure as claimed in claim 1 or 2 is characterized in that, each assembly department and corresponding this body by integral forming.
4. a kind of argon arc welding exhaust pipe structure as claimed in claim 3 is characterized in that, each assembly department and the accordingly curved transition of joining place of body.
5. a kind of argon arc welding exhaust pipe structure as claimed in claim 4 is characterized in that the bending radius of the joining place of curved transition is not more than 0.5mm.
6. a kind of argon arc welding exhaust pipe structure as claimed in claim 1 is characterized in that the wall thickness of this connecting sleeve is not less than 0.4mm.
7. outlet pipe, it is equipped with such as the described argon arc welding exhaust pipe structure of any one in the claim 1 to 6.
8. a kind of outlet pipe as claimed in claim 7, it is characterized in that, this outlet pipe comprises two bodys, the end face of these two bodys is held on the both sides step of stepped part of this argon arc welding exhaust pipe structure, the two ends of these two bodys are by flange and the connecting sleeve clamping of this argon arc welding exhaust pipe structure, and this argon arc welding exhaust pipe structure connects these two bodys and forms this outlet pipe.
9. a kind of outlet pipe as claimed in claim 8 is characterized in that, on the centerline direction perpendicular to this connecting sleeve, the thickness of this stepped part is identical with the pipe thickness of each body.
10. a kind of outlet pipe as claimed in claim 8, it is characterized in that, the internal diameter of this stepped part less than the internal diameter of each body and between the gap scope be 0.1 ~ 0.2mm, the external diameter of this stepped part less than the internal diameter of the body of each flange and between the gap scope be 0.05 ~ 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393474 CN202901587U (en) | 2012-08-09 | 2012-08-09 | Argon-arc-welding exhaust pipe structure and exhaust pipe with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393474 CN202901587U (en) | 2012-08-09 | 2012-08-09 | Argon-arc-welding exhaust pipe structure and exhaust pipe with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202901587U true CN202901587U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220393474 Expired - Fee Related CN202901587U (en) | 2012-08-09 | 2012-08-09 | Argon-arc-welding exhaust pipe structure and exhaust pipe with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202901587U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370980A (en) * | 2015-09-16 | 2016-03-02 | 吴忠仪表有限责任公司 | Self-centering valve seat |
| CN108729541A (en) * | 2018-05-29 | 2018-11-02 | 湖北沛函建设有限公司 | Connect beam type Building block construction method |
-
2012
- 2012-08-09 CN CN 201220393474 patent/CN202901587U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370980A (en) * | 2015-09-16 | 2016-03-02 | 吴忠仪表有限责任公司 | Self-centering valve seat |
| CN108729541A (en) * | 2018-05-29 | 2018-11-02 | 湖北沛函建设有限公司 | Connect beam type Building block construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20180809 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |