CN214602542U - Laser welding annular gas protection cover - Google Patents
Laser welding annular gas protection cover Download PDFInfo
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- CN214602542U CN214602542U CN202120891483.4U CN202120891483U CN214602542U CN 214602542 U CN214602542 U CN 214602542U CN 202120891483 U CN202120891483 U CN 202120891483U CN 214602542 U CN214602542 U CN 214602542U
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Abstract
The utility model discloses a gaseous safety cover of laser welding annular belongs to laser welding technical field. The utility model is provided with a first shell and an upper sleeve on the lower end surface of the cover plate, the upper sleeve is positioned inside the first shell, and the inner diameter of the first shell is larger than the outer diameter of the upper sleeve; a second shell with an L-shaped section is mounted at one end, away from the cover plate, of the first shell, a lower sleeve is mounted on the second shell, the second shell is connected with the lower sleeve through an annular sintering plate, a cavity is defined by the second L-shaped shell, the lower sleeve and the sintering plate, a lower air inlet pipe is communicated with the cavity, and a plurality of sintering holes are uniformly formed in the sintering plate; the lower end of the upper sleeve extends to the interior of the lower sleeve; the utility model discloses a coaxial arrangement's upper sleeve and lower sleeve, and with the inside that upper sleeve's lower extreme extends to the lower sleeve, after gas gets into shell one inside from last trachea, spout in the clearance between from the upper sleeve and the lower sleeve to effectively avoid the crisscross problem of air current.
Description
Technical Field
The utility model relates to a laser welding technical field, more specifically say, relate to a laser welding annular gas protection cover.
Background
As a new welding technique, laser welding is used to melt a workpiece by using a laser beam with high energy density as a heat source to form a specific weld pool, thereby achieving the purpose of welding. The laser welding has the advantages of high energy density, large depth-width ratio of welding seams, small heat affected zone, good welding quality and the like, and is widely applied to various production and processing fields.
In the actual welding process, as the laser beam with high energy density irradiates on the workpiece to be processed, spatter and smoke are generated, thereby influencing laser welding and causing the welding quality to be poor. In the prior art, in order to improve the problem, a gas protection device is generally arranged, splashes and smoke are blown away by blowing gas, and meanwhile, a welding area is also protected, for example, chinese patent application No. CN 201910735406.7, the invention and creation names are: a gas protection device for laser welding comprises a lower annular body and an upper annular body, wherein the lower annular body and the upper annular body are coaxially connected; the upper side of the protective device is provided with the air blowing groove, so that a protective screen can be formed, the lower side of the protective device is provided with the air blowing hole, dust on the surface of a workpiece and splashes generated by welding can be blown out to the side, a welded seam can be cooled quickly after welding, and the protective device has good protection for the welded seam.
Although this application can blow out dust and splashes laterally to some extent through the blow holes, since the blow holes are provided on the tapered surface, the flows of the air are easily crossed during the process of ejecting the air, and thus the flow of the air is easily affected, and the blowing effect is not ideal, and further improvement is required.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
The utility model aims to overcome the problem that the gas protection jetting air flow is easy to intersect during the laser welding in the prior art, and provides a laser welding annular gas protection cover; the utility model discloses a coaxial arrangement's upper sleeve and lower sleeve, and with the inside that upper sleeve's lower extreme extends to the lower sleeve, after gas gets into shell one inside from last trachea, spout in the clearance between from the upper sleeve and the lower sleeve to effectively avoid the crisscross problem of air current.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a laser welding annular gas protection cover, which comprises a cover plate, wherein a first shell and an upper sleeve are arranged on the lower end surface of the cover plate, the upper sleeve is positioned inside the first shell, and the inner diameter of the first shell is larger than the outer diameter of the upper sleeve; a second shell is installed at one end, far away from the cover plate, of the first shell, the section of the second shell is L-shaped, a lower sleeve is installed on the second shell, the second shell and the lower sleeve are connected through an annular sintering plate, a cavity is defined by the second L-shaped shell, the lower sleeve and the sintering plate, a lower air inlet pipe is installed on the second shell, the lower air inlet pipe is communicated with the cavity, and a plurality of sintering holes are uniformly formed in the sintering plate; the cover plate is provided with a through hole, the upper sleeve and the lower sleeve are coaxial, the lower end of the upper sleeve extends into the lower sleeve, an upper air inlet pipe is mounted on the first shell, and the upper air inlet pipe is communicated with the inside of the first shell.
As a further improvement of the utility model, the lower end inner diameter of the lower sleeve is gradually increased from top to bottom.
As a further improvement of the present invention, the cross-section of the upper sleeve is L-shaped, and the outer diameter of the upper end of the upper sleeve is larger than the outer diameter of the lower end.
As a further improvement of the utility model, the cross-section of the first shell is L-shaped, and the inner diameter of the upper end of the first shell is larger than the inner diameter of the lower end of the first shell.
As a further improvement of the utility model, 2 upper air inlet pipes are arranged, and the 2 upper air inlet pipes are symmetrically arranged on the first shell; the lower air inlet pipe is provided with 2 air inlet pipes, and the 2 air inlet pipes are symmetrically arranged on the second shell.
As a further improvement, an annular seal groove i is provided on the end face of the first shell connected with the cover plate, an annular seal groove ii is provided on the end face of the upper sleeve connected with the cover plate, and a sealing rubber ring is provided in the annular seal groove i and the annular seal groove ii.
As a further improvement, an annular sealing groove three is provided on the end face of the lower sleeve connected with the upper sleeve, and a sealing rubber ring is provided in the annular sealing groove three.
As a further improvement of the present invention, the connecting rod is installed at both ends of the cover plate, and the connecting rod is used for being installed on the laser welding device.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:
(1) the laser welding annular gas protection cover of the utility model has the advantages that the upper sleeve and the lower sleeve are coaxially arranged, the lower end of the upper sleeve is extended into the lower sleeve, and gas is sprayed out from the gap between the upper sleeve and the lower sleeve after entering the inner part of the shell from the upper gas inlet pipe, so that the problem of poor protection effect caused by the cross of gas flow is effectively avoided; in addition, after entering the cavity of the area where the second shell is located from the lower gas inlet pipe, gas is sprayed out of the sintering holes in the sintering plate, so that the protection during welding is further enhanced, and the welding effect is improved;
(2) the utility model discloses a laser welding annular gas protection cover, the lower extreme internal diameter of its lower sleeve from top to bottom increases gradually, is about to design the lower extreme of lower sleeve into loudspeaker form, and gas gets into in the clearance between upper sleeve and the lower sleeve, later gets into the opening of loudspeaker form to make gas expand outward, make the area protected when welding improve, effectively avoid the emergence that the gas current intercrossing of blowout influences this problem simultaneously;
(3) the utility model discloses a laser welding annular gas safety cover, through designing the structure of upper sleeve and shell one, make the installation of each part of being convenient for on the one hand, on the other hand, be favorable to the gas to flow in the inside of annular shell one, make the gas that spouts from the clearance between upper sleeve and the lower sleeve more even, improve the protection effect;
(4) the utility model discloses a laser welding annular gas safety cover, through installing 2 last air inlet pipes on shell one symmetrically, install 2 lower air inlet pipes on shell two symmetrically, make the gas distribute more evenly in whole annular gas safety cover, simultaneously, make the protective environment that forms after the gas blowout also more even, thereby improve the protection effect;
(5) the utility model discloses a laser welding annular gas safety cover is through being equipped with the annular seal groove in different regions to install the sealing rubber circle in the annular seal groove that corresponds, seal through the sealing rubber circle, thereby guarantee whole device sealing performance.
Drawings
Fig. 1 is a schematic structural view of a laser welding annular gas protection cover according to the present invention;
fig. 2 is a schematic cross-sectional view of a laser welding annular gas shield according to the present invention;
fig. 3 is a schematic cross-sectional view of another angle of the ring-shaped gas-protecting cover for laser welding according to the present invention.
The reference numerals in the schematic drawings illustrate:
10. a connecting rod; 20. a cover plate; 21. a through hole; 31. a first shell; 311. a first annular sealing groove; 32. an upper sleeve; 321. a second annular sealing groove; 41. a second shell; 411. a third annular sealing groove; 42. a lower sleeve; 50. sintering the plate; 61. an upper intake pipe; 62. and a lower air inlet pipe.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
Example 1
Referring to fig. 1, 2 and 3, the laser welding annular gas protecting cover of the present embodiment includes a cover plate 20, a through hole 21 is formed in a middle portion of the cover plate 20, in the present embodiment, a first housing 31 and an upper sleeve 32 are installed on a lower end surface of the cover plate 20, wherein the upper sleeve 32 is located inside the first housing 31, and an inner diameter of the first housing 31 is larger than an outer diameter of the upper sleeve 32, so that a gap exists between the first housing 31 and the upper sleeve 32, in addition, an upper gas inlet pipe 61 is installed on the first housing 31, the upper gas inlet pipe 61 is communicated with an inner portion of the first housing 31, and gas is injected into the first housing 31 through the upper gas inlet pipe 61 and enters the gap between the first housing 31 and the upper sleeve 32.
With reference to fig. 2 and 3, in this embodiment, a second casing 41 is installed at one end of the first casing 31, which is far away from the cover plate 20, the cross section of the second casing 41 is L-shaped, a lower sleeve 42 is installed on the second casing 41, the second casing 41 and the lower sleeve 42 are connected through an annular sintering plate 50, a cavity is defined by the second casing 41, the lower sleeve 42 and the sintering plate 50 which are L-shaped, a lower air inlet pipe 62 is installed on the second casing 41, the lower air inlet pipe 62 is communicated with the cavity, and a plurality of sintering holes are evenly formed in the sintering plate 50.
It should be noted that the through hole 21, the upper sleeve 32 and the lower sleeve 42 of the present embodiment are coaxial, the lower end of the upper sleeve 32 extends to the inside of the lower sleeve 42, and a gap exists between the lower end of the upper sleeve 32 and the lower sleeve 42.
During the laser welding, the protective gas enters the gap between the first shell 31 and the upper sleeve 32 from the upper gas inlet pipe 61 and then is vertically sprayed downwards from the gap between the upper sleeve 32 and the lower sleeve 42; meanwhile, after entering the cavity of the area where the second shell 41 is located from the lower gas inlet pipe 62, the protective gas is sprayed out from the sintering holes in the sintering plate 50, so that a double-layer protective atmosphere is formed in the welding area, the protective effect is improved, and in the whole process, the gas is basically sprayed out from the vertical direction, and the problem that the sprayed gas flow is crossed to cause poor protective effect is effectively avoided.
Preferably, as shown in fig. 3, the inner diameter of the lower end of the lower sleeve 42 of the present embodiment is gradually increased from top to bottom, that is, the lower end of the lower sleeve 42 is designed to be in a horn shape, and the gas enters the gap between the upper sleeve 32 and the lower sleeve 42 and then enters the horn-shaped opening, so that the gas is expanded outwards, the area to be protected during welding is increased, and meanwhile, the problem that the sprayed gas flows cross each other to affect each other is effectively avoided.
Example 2
A laser welding annular gas shield of this embodiment, substantially the same as embodiment 1, further, as shown in fig. 3, the upper sleeve 32 of this embodiment has an L-shaped cross section, and the outer diameter of the upper end of the upper sleeve 32 is larger than that of the lower end; the cross-section of shell 31 is L shape, and the upper end internal diameter of shell 31 is greater than the lower extreme internal diameter, designs through the structure to upper sleeve 32 and shell 31, makes the installation of each part of being convenient for on the one hand, and on the other hand is favorable to gas to flow in the inside of annular shell 31 for the gas of spun is more even in the clearance between upper sleeve 32 and lower sleeve 42, improves the guard effect.
Furthermore, as shown in fig. 1, 2 upper air inlets 61 are provided in the present embodiment, and the 2 upper air inlets 61 are symmetrically installed on the first housing 31; 2 lower air inlet pipes 62 are arranged, and the 2 lower air inlet pipes 62 are symmetrically arranged on the second shell 41; through 2 last intake pipes 61 of symmetry installation on shell 31, 2 intake pipes 62 under the symmetry installation on shell two 41 for gaseous more even in whole annular gas safety cover that distributes, simultaneously, make the environmental protection that forms after the gas blowout also more even, thereby improve the protection effect.
In addition, in the embodiment, a first annular seal groove 311 is formed in the end surface of the first housing 31 connected to the cover plate 20, and a second annular seal groove 321 is formed in the end surface of the upper sleeve 32 connected to the cover plate 20; an annular seal groove III 411 is formed in the end face, connected with the upper sleeve 32, of the lower sleeve 42; and sealing rubber rings are arranged in the first annular sealing groove 311, the second annular sealing groove 321 and the third annular sealing groove 411 and are used for sealing, so that the sealing performance of the whole device is ensured, and the protection effect is improved.
It should be noted that, as shown in fig. 1, the present embodiment is provided with the connecting rods 10 at both ends of the cover plate 20, and is connected to the laser welding apparatus through the connecting rods 10, so that the ring-shaped gas protection cover is mounted on the laser welding apparatus, thereby facilitating the use.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (8)
1. A laser welding annular gas protection cover which characterized in that: the anti-theft device comprises a cover plate (20), wherein a first shell (31) and an upper sleeve (32) are installed on the lower end face of the cover plate (20), the upper sleeve (32) is located inside the first shell (31), and the inner diameter of the first shell (31) is larger than the outer diameter of the upper sleeve (32); a second shell (41) is installed at one end, far away from the cover plate (20), of the first shell (31), the section of the second shell (41) is L-shaped, a lower sleeve (42) is installed on the second shell (41), the second shell (41) and the lower sleeve (42) are connected through an annular sintering plate (50), a cavity is defined by the second L-shaped shell (41), the lower sleeve (42) and the sintering plate (50), a lower air inlet pipe (62) is installed on the second shell (41), the lower air inlet pipe (62) is communicated with the cavity, and a plurality of sintering holes are uniformly formed in the sintering plate (50); the cover plate (20) is provided with a through hole (21), the upper sleeve (32) and the lower sleeve (42) are coaxial, the lower end of the upper sleeve (32) extends into the lower sleeve (42), the first shell (31) is provided with an upper air inlet pipe (61), and the upper air inlet pipe (61) is communicated with the inside of the first shell (31).
2. A laser welded annular gas containment cap as claimed in claim 1, wherein: the inner diameter of the lower end of the lower sleeve (42) is gradually increased from top to bottom.
3. A laser welded annular gas containment shield as claimed in claim 2, wherein: the cross section of the upper sleeve (32) is L-shaped, and the outer diameter of the upper end of the upper sleeve (32) is larger than that of the lower end.
4. A laser welded annular gas containment cap as claimed in claim 3, wherein: the cross section of the first shell (31) is L-shaped, and the inner diameter of the upper end of the first shell (31) is larger than that of the lower end of the first shell.
5. A laser welded annular gas containment cap as claimed in claim 4, wherein: the number of the upper air inlet pipes (61) is 2, and the 2 upper air inlet pipes (61) are symmetrically arranged on the first shell (31); the lower air inlet pipes (62) are provided with 2 air inlet pipes, and the 2 lower air inlet pipes (62) are symmetrically arranged on the second shell (41).
6. A laser welded annular gas containment cap as claimed in claim 5, wherein: the end face of the first shell (31) connected with the cover plate (20) is provided with a first annular sealing groove (311), the end face of the upper sleeve (32) connected with the cover plate (20) is provided with a second annular sealing groove (321), and sealing rubber rings are arranged in the first annular sealing groove (311) and the second annular sealing groove (321).
7. A laser welded annular gas containment cap as claimed in claim 6, wherein: an annular sealing groove III (411) is formed in the end face, connected with the upper sleeve (32), of the lower sleeve (42), and a sealing rubber ring is arranged in the annular sealing groove III (411).
8. A laser welded annular gas containment cap as claimed in claim 7, wherein: connecting rods (10) are installed at two ends of the cover plate (20), and the connecting rods (10) are used for being installed on laser welding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120891483.4U CN214602542U (en) | 2021-04-27 | 2021-04-27 | Laser welding annular gas protection cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120891483.4U CN214602542U (en) | 2021-04-27 | 2021-04-27 | Laser welding annular gas protection cover |
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| Publication Number | Publication Date |
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| CN214602542U true CN214602542U (en) | 2021-11-05 |
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| CN202120891483.4U Active CN214602542U (en) | 2021-04-27 | 2021-04-27 | Laser welding annular gas protection cover |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833477A (en) * | 2022-04-01 | 2022-08-02 | 洛阳航辉新材料有限公司 | Laser welding gas protection device |
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2021
- 2021-04-27 CN CN202120891483.4U patent/CN214602542U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833477A (en) * | 2022-04-01 | 2022-08-02 | 洛阳航辉新材料有限公司 | Laser welding gas protection device |
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