CN217965401U - Gas protection device for laser welding of low-nickel austenitic stainless steel pipe - Google Patents
Gas protection device for laser welding of low-nickel austenitic stainless steel pipe Download PDFInfo
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- CN217965401U CN217965401U CN202221808053.2U CN202221808053U CN217965401U CN 217965401 U CN217965401 U CN 217965401U CN 202221808053 U CN202221808053 U CN 202221808053U CN 217965401 U CN217965401 U CN 217965401U
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Abstract
The utility model provides a gas protection device for low-nickel austenitic stainless steel pipe laser welding belongs to welding gas protection device field. The problem of current low nickel high nitrogen austenite stainless steel insufficient protection of protective gas when welding is solved. The device comprises two clamping mechanisms, a driving mechanism, an annular protective cover and a protective cover adjusting mechanism, wherein the two clamping mechanisms respectively clamp one to-be-welded test piece, the two welding seams of the to-be-welded test piece are butted, the driving mechanism is connected with the clamping mechanisms, an air passage is arranged inside the annular protective cover, the inlet end of the air passage is located on the outer annular surface of the annular protective cover, the outlet end of the air passage is arranged on the inner annular surface, the to-be-welded test piece penetrates through the annular protective cover, the annular protective cover is arranged at the butt joint of the to-be-welded test piece, and the lower part of the annular protective cover is connected with the protective cover adjusting mechanism. It is mainly used for the gas protection of the laser welding of the low-nickel austenitic stainless steel pipe.
Description
Technical Field
The utility model belongs to welding gas shield assembly field especially relates to a gas shield assembly is used in nonrust steel pipe laser welding of low nickel austenite.
Background
In recent years, with the rapid development of the global stainless steel industry, the world nickel consumption growth rate is greatly improved, because the global nickel sulfide ore production resource is in exhaustion crisis, the newly increased yield is very limited, and the development and utilization of the new nickel laterite ore are influenced by a plurality of factors and are difficult to form large-scale capacity in a short time, so that the nickel is used as a rare resource, the price is high for a long time and fluctuates greatly, and the cost and the competitive risk of the austenitic stainless steel product which depends on more nickel are obviously increased.
With the high-speed development of modern industrial economy, stainless steel is used in many aspects such as engineering machinery, pressure vessels, living appliances and the like. The largest user of nickel metal is stainless steel, which accounts for 65%. The austenitic stainless steel contains more nickel, the price of the raw material of the austenitic stainless steel is about half of that of the stainless steel, the price of the stainless steel is greatly increased due to the shortage of nickel resources, and the nickel resources in China cannot meet the requirements of the stainless steel industry and are generally imported, so the austenitic stainless steel is severely limited by foreign mineral resources. Under the condition that nickel metal is seriously short of service, the low-nickel high-nitrogen austenitic stainless steel with the same service performance can solve the problems, nitrogen and manganese elements are used for replacing expensive nickel in the low-nickel high-nitrogen austenitic stainless steel, the using amount of the nickel is greatly reduced, and therefore the dependence on nickel resources is greatly reduced, the production cost is greatly reduced, and the excessive dependence on foreign mineral resources is also reduced.
At present, the low-nickel high-nitrogen austenitic stainless steel is widely applied to industries such as kitchen utensils and architectural decorations, and is also gradually involved in industries such as petrochemical industry and pipeline storage tanks, so that the low-nickel high-nitrogen austenitic stainless steel inevitably relates to a welding processing procedure in the subsequent production and processing process, the traditional protective gas hood is difficult to realize effective protection of welding of the low-nickel high-nitrogen austenitic stainless steel, the loss of nitrogen elements is easily caused, and finally the corrosion resistance of a welding joint is reduced. Therefore, in order to meet the protection requirement of the low-nickel high-nitrogen austenitic stainless steel welding process, the protective gas device which is reasonable in design, accurate and convenient in clamping, wide in application range and good in protection effect and is suitable for welding the low-nickel high-nitrogen austenitic stainless steel is very important for ensuring the corrosion resistance of a low-nickel high-nitrogen austenitic stainless steel welding joint.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a gas protection device for low nickel austenite stainless steel pipe laser welding to protection gas protection is insufficient when solving current low nickel high nitrogen austenite stainless steel welding.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a nonrust steel pipe of low nickel austenite gas protection device for laser welding, it includes fixture, actuating mechanism, annular safety cover and safety cover adjustment mechanism, fixture quantity is two, and two fixtures centre gripping one respectively treats the welding seam butt joint of welding the test piece, two are treated the welding seam butt joints of welding the test piece, actuating mechanism links to each other with fixture, the inside air flue that is provided with of annular safety cover, air flue entry end are located annular safety cover outer anchor ring face, and the air flue exit end sets up on the anchor ring including, treat that the welding test piece passes annular safety cover, annular safety cover sets up and is treating welding test piece butt joint department, annular safety cover lower part links to each other with safety cover adjustment mechanism.
Furthermore, the number of the annular protective covers is two, and the lower parts of the two annular protective covers are respectively connected with a protective cover adjusting mechanism.
Furthermore, the clamping mechanism comprises a shell and a chuck, the chuck is connected with the shell, and the driving mechanism is connected with the chuck.
Further, the driving mechanism is a motor.
Further, the chuck is a four-jaw chuck.
Furthermore, the protective cover adjusting mechanism comprises a movable sliding table and a base, the movable sliding table is connected with the base in a sliding mode, and the annular protective cover is connected with the movable sliding table.
Furthermore, a screw rod is arranged on the base, and the movable sliding table is connected with the screw rod.
Furthermore, the inlet end of the air passage is provided with a quick-connection-peg.
Furthermore, the air passage outlet end comprises a plurality of air outlets which are uniformly distributed along the circumferential direction of the annular protection cover.
Furthermore, the air flue inlet end is connected with a protective gas supply system.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses can be used to the gas protection when low nickel high nitrogen austenite stainless steel laser welding, reasonable in design, the accurate convenience of clamping, suitability are good, the range of application is extensive. The gas protection device can play a stable protective role in laser welding of the low-nickel austenitic stainless steel pipe, the distance of the annular protection cover is adjusted through the screw to adapt to annular welding seams of the low-nickel austenitic stainless steel pipe in different pipe diameters and groove forms, meanwhile, effective protection in the welding process of the low-nickel austenitic stainless steel pipe with different thicknesses and different pipe diameters can be achieved through the annular protection cover, and the protection effect is good.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
FIG. 1 is a schematic structural view of a gas shield for laser welding of a low-nickel austenitic stainless steel pipe according to the present invention;
FIG. 2 is a schematic structural view of a clamping mechanism in a gas protection device for laser welding of a low-nickel austenitic stainless steel pipe according to the present invention;
FIG. 3 is a schematic structural view of a protective cover adjusting mechanism in the gas protecting device for laser welding of the low-nickel austenitic stainless steel pipe of the present invention;
FIG. 4 is a schematic view of the structure of the annular protective cover in the gas-protecting device for laser welding of the low-nickel austenitic stainless steel pipe.
The device comprises a shell 1, a motor 2, a chuck 3, a quick connector 4, an annular protective cover 5, a screw 6, a movable sliding table 7 and a base 8.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely explained below with reference to the drawings in the embodiment of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.
The embodiment is described with reference to fig. 1 to 4, and the gas protection device for laser welding of the low-nickel austenitic stainless steel tube comprises two clamping mechanisms, two driving mechanisms, an annular protection cover 5 and a protection cover adjusting mechanism, wherein the two clamping mechanisms respectively clamp one test piece to be welded, the two welding seams of the test piece to be welded are butted, the driving mechanism is connected with the two clamping mechanisms, an air passage is arranged inside the annular protection cover 5, the inlet end of the air passage is positioned on the outer annular surface of the annular protection cover 5, the outlet end of the air passage is arranged on the inner annular surface, the test piece to be welded penetrates through the annular protection cover 5, the annular protection cover 5 is arranged at the butt joint of the test piece to be welded, the lower part of the annular protection cover 5 is connected with the protection cover adjusting mechanism, and the annular protection cover can realize effective protection in the welding process of low-nickel austenitic stainless steel tubes with different thicknesses and different tube diameters, and the protection effect is good.
During the use, the test piece is treated to the fixture centre gripping, makes two treat the test piece butt joint, and it is rotatory to drive fixture through actuating mechanism to the messenger treats that the test piece carries out periodic rotation, and annular safety cover 5 is located treats welding test piece butt joint department, lets in the protective gas from the air flue entry end of annular safety cover 5, and the protective gas flows from the air flue exit end, carries out gas protection to welding interface department, treats two through welding system and welds the test piece.
The number of the annular protective covers 5 is two, the lower parts of the two annular protective covers 5 are respectively connected with a protective cover adjusting mechanism, and the welding laser beam welds two to-be-welded test pieces through a hole between the two annular protective covers 5.
Fixture includes casing 1 and chuck 3, chuck 3 links to each other with casing 1, actuating mechanism links to each other with chuck 3, and casing 1 plays the effect of connecting chuck 3 and actuating mechanism, realizes treating the clamp of welding the test piece tightly through chuck 3, and casing 1 is connected subaerial. Actuating mechanism is motor 2, provides the power source through motor 2, realizes the drive to chuck 3, and motor 2 connects on casing 1, chuck 3 is the four-jaw chuck, guarantees to treat the centre gripping stability of welding the test piece.
The protective cover adjusting mechanism comprises a movable sliding table 7 and a base 8, the movable sliding table 7 is connected with the base 8 in a sliding mode, and the annular protective cover 5 is connected with the movable sliding table 7. The distance between the annular protective covers 5 is adjusted by moving the sliding table 7 left and right. Be provided with screw rod 6 on the base 8, remove slip table 7 and link to each other with screw rod 6, remove slip table 7 and remove about moving through rotating screw rod 6 drive, convenient regulation, and adjust more accurately. The movable sliding table 7 plays a role of supporting the annular protection cover 5, drives the annular protection cover 5 to move horizontally, and transmits the movement of the screw 6 to the annular protection cover 5.
The air flue inlet end is connected with the protective gas supply system, the air flue inlet end is provided with the quick-connection connector 4, the annular protective cover 5 is connected with the protective gas supply system through the quick-connection connector 4, and the connection is convenient and quick. The air flue outlet end comprises a plurality of air outlets, the air outlets are uniformly distributed along the circumferential direction of the annular protective cover 5, and the welding position of the test piece to be welded is uniformly protected through the air outlets arranged along the circumferential direction.
Through casing 1, motor 2, four-jaw chuck 3, quick connector 4, annular safety cover 5, screw rod 6, remove slip table 7 and base 8 etc. and play stable guard action to the nonrust steel pipe laser welding of low nickel austenite, the interval that adjusts annular safety cover 5 through screw rod 6 adapts to the nonrust steel pipe circumferential weld of low nickel austenite of different pipe diameters and groove forms, adopt annular safety cover 5 can realize different thickness simultaneously, the nonrust steel pipe welding process of low nickel austenite of different pipe diameters effectively protects, it is effectual to protect.
Fix casing 1 and base 8 subaerial, to remove slip table 7 and be connected on the base with screw rod 6, to treat that the test piece is fixed through four-jaw chuck 3, pass annular safety cover 5, the installation of treating the test piece is treated in the completion, drive through rotating screw rod 6 and adjust and remove slip table 7, it is good to treat welding position assurance welding process protection to make annular safety cover 5 press close to, the laser beam treats the test piece through two holes between the annular safety cover 5 and welds, avoid the laser beam to hit annular safety cover 5. And (3) conveying the shielding gas into an annular protective cover 5 through a quick connector 4, introducing sufficient shielding gas for the welding process, and opening a motor 2 to enable a test piece to be welded to periodically rotate to complete welding. The four-jaw chuck 3, the movable sliding table 7 and the annular protective cover 5 are utilized to perform high-quality protection on the welding of the low-nickel austenitic stainless steel pipes with different diameters and thicknesses.
The embodiment of the present invention disclosed above is only used to help illustrate the present invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention.
Claims (10)
1. The utility model provides a gas shield assembly is used in laser welding of low nickel austenite stainless steel pipe which characterized in that: it includes fixture, actuating mechanism, annular safety cover (5) and safety cover adjustment mechanism, fixture quantity is two, and two fixtures centre gripping respectively one treat the test piece, and two weld joints that treat the test piece butt joints, actuating mechanism links to each other with fixture, annular safety cover (5) inside is provided with the air flue, and the air flue entry end is located annular safety cover (5) outer anchor ring, and the air flue exit end sets up on the interior anchor ring, treat that the test piece passes annular safety cover (5), annular safety cover (5) set up and treat test piece butt joint, annular safety cover (5) lower part links to each other with safety cover adjustment mechanism.
2. The gas-protecting device for laser welding of the low-nickel austenitic stainless steel pipe as claimed in claim 1, characterized in that: the number of the annular protective covers (5) is two, and the lower parts of the two annular protective covers (5) are respectively connected with a protective cover adjusting mechanism.
3. The gas shield for laser welding of the low-nickel austenitic stainless steel pipe as claimed in claim 1 or 2, wherein: the clamping mechanism comprises a shell (1) and a chuck (3), the chuck (3) is connected with the shell (1), and the driving mechanism is connected with the chuck (3).
4. The gas-protecting device for laser welding of the low-nickel austenitic stainless steel pipe as claimed in claim 3, characterized in that: the driving mechanism is a motor (2).
5. The gas-protecting device for laser welding of the low-nickel austenitic stainless steel pipe as claimed in claim 4, wherein: the chuck (3) is a four-jaw chuck.
6. The gas shield apparatus for laser welding of a low-nickel austenitic stainless steel pipe as claimed in claim 1, wherein: the protective cover adjusting mechanism comprises a movable sliding table (7) and a base (8), the movable sliding table (7) is connected with the base (8) in a sliding mode, and the annular protective cover (5) is connected with the movable sliding table (7).
7. The gas shield apparatus for laser welding of a low-nickel austenitic stainless steel pipe as claimed in claim 6, wherein: the base (8) is provided with a screw (6), and the movable sliding table (7) is connected with the screw (6).
8. The gas shield apparatus for laser welding of a low-nickel austenitic stainless steel pipe as claimed in claim 1, wherein: the inlet end of the air passage is provided with a quick connector (4).
9. The gas shield apparatus for laser welding of a low-nickel austenitic stainless steel pipe as claimed in claim 1, wherein: the air flue outlet end comprises a plurality of air outlets which are uniformly distributed along the circumferential direction of the annular protective cover (5).
10. The gas-protecting device for laser welding of the low-nickel austenitic stainless steel pipe as claimed in claim 1, characterized in that: the air flue inlet end is connected with a protective gas supply system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221808053.2U CN217965401U (en) | 2022-07-14 | 2022-07-14 | Gas protection device for laser welding of low-nickel austenitic stainless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221808053.2U CN217965401U (en) | 2022-07-14 | 2022-07-14 | Gas protection device for laser welding of low-nickel austenitic stainless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217965401U true CN217965401U (en) | 2022-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221808053.2U Active CN217965401U (en) | 2022-07-14 | 2022-07-14 | Gas protection device for laser welding of low-nickel austenitic stainless steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217965401U (en) |
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2022
- 2022-07-14 CN CN202221808053.2U patent/CN217965401U/en active Active
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