CN116851912A - Handheld laser welding gas protection device and method - Google Patents
Handheld laser welding gas protection device and method Download PDFInfo
- Publication number
- CN116851912A CN116851912A CN202310915078.5A CN202310915078A CN116851912A CN 116851912 A CN116851912 A CN 116851912A CN 202310915078 A CN202310915078 A CN 202310915078A CN 116851912 A CN116851912 A CN 116851912A
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- Prior art keywords
- welding
- welding gun
- inflatable
- gas
- protection
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- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000003466 welding Methods 0.000 claims abstract description 141
- 230000007246 mechanism Effects 0.000 claims abstract description 21
- 230000001681 protective effect Effects 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 8
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 24
- 239000007789 gas Substances 0.000 description 20
- 229910052786 argon Inorganic materials 0.000 description 12
- 230000008569 process Effects 0.000 description 8
- 210000001503 joint Anatomy 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The handheld laser welding gas protection device comprises a clamping base, a welding gun moving assembly and an inflation protection assembly, wherein the clamping base comprises a platform and a pair of fixed beams arranged on the platform, the platform is used for bearing a part to be welded, and the pair of fixed beams define a welding gun moving path; the welding gun moving assembly comprises a running mechanism and a welding gun arranged on the running mechanism, and the running mechanism is used for being matched with a welding gun moving path; the inflatable protection assembly comprises an inflatable protection cover and a pair of inflatable screen pipes, the inflatable protection cover is movably arranged on the fixed beam, and the pair of inflatable screen pipes are arranged in the inflatable protection cover and used for providing protection gas; the inflatable protection cover is arranged to be capable of moving along with the welding gun, so that the inflatable protection cover is always located above a welding line of the to-be-welded part. The device and the method can provide real-time protection for the welding seam under the handheld welding gun in real time, thereby improving the welding quality.
Description
Technical Field
The application relates to the field of welding, in particular to the field of hand-held laser welding.
Background
Laser welding technology is one of the most widely used laser technologies. The laser technology is common in the manufacturing industry, and the laser welding has the advantages of concentrated energy, small thermal damage, large depth-to-width ratio of welding seams and small welding deformation in the welding process. The laser welding can be highly centralized, automated and flexible, and a plurality of full-automatic process modes such as mechanical arms exist. With the change of welding products and welding modes, handheld laser welding machines are increasingly favored.
Air holes are easy to generate when a stainless steel test piece is welded by laser, the welding seam energy concentration area is easy to oxidize in the process of concentrating energy input, and the welding seam forming is easy to deviate from a running track due to small assembly gaps in the welding process. The prior art relates to a thin plate welding deformation clamping structure which is protected by back argon, a welding gun auxiliary welding bracket is a movable tripod, a simple bracket is provided, a gas protection device is not provided, and the welding gun bracket can move in 4 directions.
When a welder operates the handheld laser welding, the welding equipment lacks a reference line, the welding gun shielding gas protects a welding seam relatively poorly, and the problems of poor welding seam forming, oxidized welding surface and the like are caused easily.
Disclosure of Invention
The application aims to provide a handheld laser welding gas protection device which can provide real-time protection for a welding line under a handheld welding gun in real time and improve welding quality.
The hand-held laser welding gas protection device for achieving the purpose comprises a clamping base, a welding gun moving assembly and an inflation protection assembly, wherein the clamping base comprises a platform and a pair of fixed beams arranged on the platform, the platform is used for bearing a part to be welded, and the pair of fixed beams define a welding gun moving path; the welding gun moving assembly comprises a travelling mechanism and a welding gun arranged on the travelling mechanism, and the travelling mechanism is used for being matched with the welding gun moving path; the inflatable protection assembly comprises an inflatable protection cover and a pair of inflatable screen pipes, the inflatable protection cover is movably arranged on the fixed beam, and the pair of inflatable screen pipes are arranged in the inflatable protection cover and used for providing protection gas; the inflatable protection cover is arranged to be capable of moving along with the welding gun, so that the inflatable protection cover is always located above a welding line of the to-be-welded part.
In one or more embodiments, a pair of said inflatable screens are symmetrically disposed on either side of said inflatable enclosure.
In one or more embodiments, the inflation protection assembly further includes an automatic tracking slider fixedly connected to the inflation protection cap and respectively movably disposed on the pair of fixed beams, the automatic tracking slider including a sensor, a driving motor, and a control assembly.
In one or more embodiments, the auto-tracking slider further includes a timing assembly.
In one or more embodiments, the travel mechanism includes a connection module to which the welding gun is adjustably secured in angle, and a pair of rollers for traveling on the path of travel of the welding gun.
In one or more embodiments, the inflatable screen is provided with air holes.
In one or more embodiments, the welding gun movement path is a straight line.
In one or more embodiments, the gas-filled protective cover includes an end opening for receiving the welding gun and a cavity cover that is open on a side facing the part to be welded.
In one or more embodiments, the fixing beam is provided with a pressing member for pressing the component to be welded.
Another object of the present application is to provide a method for protecting a hand-held laser welding gas, which is performed by using the above-mentioned hand-held laser welding gas protecting device, the method comprising the steps of: placing the part to be welded on a platform, and placing the part to be welded of the part to be welded on a welding gun moving path; fixing the welding gun on a travelling mechanism, and placing the travelling mechanism in a welding gun moving path; inflating the dual-inflation screen pipe to enable the protection gas to be fully inflated into the inflation protection cover; and manually moving the welding gun, and moving the inflatable protective cover along with the welding gun.
Above-mentioned laser welding gas protection device is through setting up a pair of fixed beam, prescribes a limit to welder travel path, and then can avoid the welding seam to appear the skew, still through setting up inflatable protection cover and the dual-inflation screen pipe that follows welder and remove in real time, guarantees that the welding seam is in stable argon gas environment, avoids appearing argon gas disorder, avoids the welding seam molten pool edge to appear the torrent, improves the surrounding environment when welding to improve the welding effect.
Drawings
The above and other features, properties and advantages of the present application will become more apparent from the following description in conjunction with the accompanying drawings and embodiments, in which:
FIG. 1 is a schematic view of one embodiment of a handheld laser welding gas shield apparatus;
FIG. 2 is a schematic view of a clamp base and inflation protection assembly;
FIG. 3 is a schematic diagram of one embodiment of a gun motion assembly;
FIG. 4 is a schematic illustration of an inflatable protective cover and an inflatable screen;
FIG. 5 is a cross-sectional view of the inflatable protective cover;
FIG. 6 is a rear view of the inflatable protective cover and the auto-tracking slider.
Detailed Description
The present application will be further described with reference to specific embodiments and drawings, in which more details are set forth in the following description in order to provide a thorough understanding of the present application, but it will be apparent that the present application can be embodied in many other forms than described herein, and that those skilled in the art may make similar generalizations and deductions depending on the actual application without departing from the spirit of the present application, and therefore should not be construed to limit the scope of the present application in terms of the content of this specific embodiment.
It is noted that these and other figures are merely examples, which are not drawn to scale and should not be construed as limiting the scope of the application as it is actually claimed.
When a welder operates the handheld laser welding, the welding process is easy to have the problems of poor weld joint forming, oxidized welding surface and the like due to the fact that welding equipment lacks a reference line and welding gun shielding gas protects a weld joint relatively poorly. The hand-held laser welding gas protection device disclosed by the disclosure is used for solving the problem.
Referring to fig. 1 and 2, the hand-held laser welding gas shielding device includes a clamping base 10, a gun motion assembly 20, and an inflation protection assembly 30.
The clamping base 10 includes a platform 11 for carrying the parts 5 to be welded, and a pair of fixed beams 12 provided on the platform, the pair of fixed beams 12 defining a welding gun movement path 13. The platform 11 serves as a butt-joint main body platform for the parts to be welded 5, and the fixing beam 12 is fixedly mounted on the butt-joint main body platform by means of the stud bolts 115, as shown in fig. 2. The fixed beam 12 is U-shaped, and a clamping space is defined by the fixed beam and the platform 11, so that a datum line and a locating point are provided for butt joint of the parts to be welded 5, deformation of a welded test piece is limited, a protection space for the back of the test piece is provided, and the running distance is controlled. The welding gun moving path 13 can be designed according to the welding line requirement, for example, for sheet welding, the welding gun moving path 13 is preferably designed to be a straight line, and is used as a straight line welding auxiliary tool, so that the moving path of the welding gun 22 is limited, and the straight line shape of the welding line is ensured.
In some embodiments, the fixing beam 12 is provided with a pressing member 121 for pressing the to-be-welded component 5, and the pressing member 121 may be an external thread type cam knob, so that the external thread type pressing member 121 is ensured to effectively function to fix the to-be-welded component 5 during assembly welding.
As shown in fig. 3, the gun motion assembly 20 includes a traveling mechanism 21 and a gun 22 provided on the traveling mechanism 21, the traveling mechanism 21 being configured to cooperate with the gun motion path 13. In the embodiment shown in fig. 3, the traveling mechanism 21 includes a connection module 23 and a pair of rollers 24, and the welding gun 22 is fixed to the connection module 23 so as to be adjustable in angle, and the rollers 24 are used to travel on the welding gun movement path 13.
Specifically, in the embodiment shown in fig. 3, a pair of rollers 24 are assembled with a roller shaft 241 by screw threads, the roller shaft 241 is also assembled with an auxiliary connection module 242, the auxiliary connection module 242 is connected with the connection module 23, and the connection module 23 is fixedly connected with the welding gun 22 by the I-type hexagonal nut 26 and the hexagon socket head cap screw 25. After the angle of the welding gun 22 is determined, the position of the welding gun 22 is fixed by using the I-shaped hexagonal nut 26 and the inner hexagonal cylindrical head screw 25, and when the angle of the welding gun 22 needs to be adjusted, the I-shaped hexagonal nut 26 and the inner hexagonal cylindrical head screw 25 are loosened, so that the welding gun 22 is adjusted to a proper angle.
In the welding process, the rolling property and symmetry of the pair of rollers 24 are utilized to effectively ensure the straight line and uniform welding of the welding gun, the height of the roller shaft is adjusted by adjusting the tightness of the hexagon socket head cap screws 25 in the welding process, the welding angle of the laser welding gun is ensured, the welding penetration of the welding seam is ensured to meet the requirement, the position of the connecting module 23 can be controlled by adjusting the hexagon socket head cap screws 25, the running distance length of the rollers 24 is adjusted, the uniform welding length is controlled, the oxidation prevention of the rear welding seam and the straight uniform running degree of the welding seam are ensured, and the welding property is improved.
The fixed beam 12 is also provided with an inflation protection assembly, as shown in fig. 4 to 5, the inflation protection assembly 30 includes an inflation protection cap 31 and a pair of inflation screen tubes 32, and the inflation protection cap 31 is movably provided on the fixed beam 12. A pair of inflatable screens 32 are disposed in the inflatable protective cover 31, and the inflatable screens 32 are provided with air holes 321 for providing protective gas. Preferably, a pair of inflatable screen pipes 32 symmetric distribution is in the both sides of aerifing safety cover 31, if be Y type setting in the welding seam both sides, and the argon gas flow around the welding seam can be adjusted to the two argon gas pipes of trompil, guarantees to form the argon gas room of stable atmospheric pressure to guarantee that the welding seam is in stable argon gas environment, avoid appearing argon gas disorder, avoid the welding seam molten pool edge to appear the torrent, improve the welding seam environment.
Wherein the gas-filled protecting cover 31 is arranged to be able to follow the movement of the welding gun 22 such that the gas-filled protecting cover 31 is always located above the weld of the parts to be welded. As will be appreciated with reference to fig. 1 and 4, the inflatable protective cover 31 includes an end opening 311 for receiving a welding gun and a cavity cover 312, the cavity cover 312 being open on the side facing the component 5 to be welded, the opening 311 being for receiving the welding end of the welding gun 22 such that the weld on the component 5 to be welded is always below the cavity cover 312, providing a real time supply of shielding gas to the weld.
Preferably, the inflatable protection cover 31 is further provided with an exhaust hole 315, which is beneficial to exhausting the 'plume' generated during welding.
In some embodiments, the fixed beam 12 provides a rail or rack for movement of the inflatable protective enclosure 31. The gas-filled shield 31 includes a sensor for detecting the distance from the welding gun, a driving motor, and a roller or rack so as to follow the movement of the welding gun 22 together, keeping the distance therebetween in a stable range.
In other embodiments, as shown in fig. 3 and 6, the inflatable protection assembly further includes an automatic tracking slider 34, where the automatic tracking slider 34 is fixedly connected to the inflatable protection cover 31 and is respectively movably disposed on the pair of fixed beams 12, for example, the automatic tracking slider 34 is assembled with the linear guide rail 19 on the fixed beam 12 through a channel, so as to ensure that the single side slides effectively. The automatic tracking slider 34 comprises a sensor, a driving motor and a control assembly, is a module with a motor, can be adjusted in the direction parallel to the main platform, is fixedly connected with the inflatable protection cover 31 through a connecting piece 341, and further drives the inflatable protection cover 31 to move so as to keep a stable distance from the welding gun.
The automatic tracking slider 34 preferably also includes a timing assembly that can record the weld duration based on the weld gun travel record.
The hand-held laser welding gas protection device is suitable for hand-held laser welding, is particularly suitable for the welding process of butt joint plate test pieces, can well protect the straightness of weld joint forming and weld joints, greatly improves welding stability, has stable welding quality and high welding efficiency, and is suitable for butt joint test pieces of welding flat welding, vertical welding and transverse welding.
In combination with the above description of the hand-held laser welding gas shielding device, it will also be appreciated that a hand-held laser welding gas shielding method comprises the steps of: placing the part to be welded on a platform, and placing the part to be welded of the part to be welded on a welding gun moving path; fixing a welding gun on a travelling mechanism, and placing the travelling mechanism in a welding gun moving path; inflating the dual-inflation screen pipe to enable the protection gas to be fully inflated into the inflation protection cover; and manually moving the welding gun, and moving the inflatable protective cover along with the welding gun.
The method adopts double argon pipe protection, can provide more uniform argon flow, and ensures that the welding seam is in a stable argon environment; the argon gas chamber is in an automatic tracking sliding block mode, so that full protection is provided for welding seams in real time; the roller sliding system and the welding gun are assembled together, so that the handheld welding gun is kept to move uniformly and linearly, the welding gun Shi Hanjiao degrees are adjusted in the vertical direction, and the welding speed and the welding direction are effectively controlled.
The application uses specific words to describe embodiments of the application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic is associated with at least one embodiment of the application. Thus, it should be emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various positions in this specification are not necessarily referring to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of the application may be combined as suitable.
While the application has been described in terms of preferred embodiments, it is not intended to be limiting, but rather to the application, as will occur to those skilled in the art, without departing from the spirit and scope of the application. Therefore, any modification, equivalent variation and modification of the above embodiments according to the technical substance of the present application fall within the protection scope defined by the claims of the present application.
Claims (10)
1. The gas protection device of handheld laser welding, its characterized in that includes:
the clamping base comprises a platform and a pair of fixed beams arranged on the platform, the platform is used for bearing a part to be welded, and the fixed beams define a welding gun moving path;
the welding gun moving assembly comprises a travelling mechanism and a welding gun arranged on the travelling mechanism, and the travelling mechanism is used for being matched with the welding gun moving path; and
the inflatable protection assembly comprises an inflatable protection cover and a pair of inflatable screen pipes, wherein the inflatable protection cover is movably arranged on the fixed beam, and the pair of inflatable screen pipes are arranged in the inflatable protection cover and used for providing protection gas;
the inflatable protection cover is arranged to be capable of moving along with the welding gun, so that the inflatable protection cover is always located above a welding line of the to-be-welded part.
2. The hand-held laser welding gas shield apparatus as recited in claim 1 wherein a pair of said inflatable screen tubes are symmetrically disposed on either side of said inflatable shroud.
3. The hand-held laser welding gas shield apparatus as recited in claim 1, wherein said gas shield assembly further comprises an automatic tracking slider fixedly connected to said gas shield and movably disposed on a pair of said fixed beams, respectively, said automatic tracking slider comprising a sensor, a drive motor and a control assembly.
4. The hand-held laser welding gas shield of claim 3 wherein said automatic tracking slider further comprises a timing assembly.
5. The hand-held laser welding gas shield apparatus as recited in claim 1 wherein said travel mechanism includes a connection module and a pair of rollers, said welding gun being angularly fixed to said connection module, said rollers being adapted to travel on said welding gun travel path.
6. The hand-held laser welding gas protection device of claim 1, wherein the inflatable screen is provided with gas holes.
7. The hand-held laser welding gas shield apparatus as recited in claim 1, wherein said welding gun path of travel is a straight line.
8. The hand-held laser welding gas shield apparatus of claim 1 wherein the gas-filled protective cap includes an end opening for receiving the welding gun and a cavity cover, the cavity cover being open on a side facing the part to be welded.
9. The hand-held laser welding gas protection device according to claim 1, wherein a pressing member for pressing the parts to be welded is provided on the fixed beam.
10. A method of hand-held laser welding gas shielding, characterized in that it is carried out using a hand-held laser welding gas shielding device according to any one of claims 1-9, the method comprising the steps of:
placing the part to be welded on a platform, and placing the part to be welded of the part to be welded on a welding gun moving path;
fixing the welding gun on a travelling mechanism, and placing the travelling mechanism in a welding gun moving path;
inflating the dual-inflation screen pipe to enable the protection gas to be fully inflated into the inflation protection cover;
and manually moving the welding gun, and moving the inflatable protective cover along with the welding gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310915078.5A CN116851912A (en) | 2023-07-24 | 2023-07-24 | Handheld laser welding gas protection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310915078.5A CN116851912A (en) | 2023-07-24 | 2023-07-24 | Handheld laser welding gas protection device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116851912A true CN116851912A (en) | 2023-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310915078.5A Pending CN116851912A (en) | 2023-07-24 | 2023-07-24 | Handheld laser welding gas protection device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116851912A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117300473A (en) * | 2023-11-30 | 2023-12-29 | 湖南平丰环保科技有限公司 | Welding machine for machining |
-
2023
- 2023-07-24 CN CN202310915078.5A patent/CN116851912A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117300473A (en) * | 2023-11-30 | 2023-12-29 | 湖南平丰环保科技有限公司 | Welding machine for machining |
| CN117300473B (en) * | 2023-11-30 | 2024-02-09 | 湖南平丰环保科技有限公司 | Welding machine for machining |
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