A hand-held laser welder torch assembly

Abstract

The utility model discloses a handheld laser welding machine welding torch subassembly, including laser welding torch and wire feeder, the position of laser welding torch corresponding wire feeder is fixed with wire feeder support, wire feeder support swing articulates to have the hinged seat, and the hinged seat fixed mounting is on wire feeder, and the hinged seat is fixed with the guide pulley support on the bottom of the one side of the head of wire feeder that faces away, and the one end of guide pulley support is installed with the support guide pulley that faces away the hinged seat, be fixed with the mounting seat on guide pulley support, and the mounting seat is fixed with the positioning sleeve pipe that sets up to the rear inclination of upper end and installs, the utility model discloses a support guide pulley is set up, and when welding, support guide pulley rolls along the weld, not only plays the supporting effect to laser welding torch and the arm of handheld laser welding torch, can also play the guiding effect to the welding path, and the support idler wheel is set up on the front top of support guide pulley, and when welding vertical seam, carry out the lateral support, can ensure that the head of laser welding torch and wire feeder always aims at vertical seam, also plays the supporting effect, makes welding operation more relaxed.

Description

Technical Field

[0001] This utility model relates to the field of laser welding technology, specifically to a handheld laser welding gun assembly. Background Technology

[0002] Laser welding is a modern welding method that uses a laser beam as a heat source. By exciting a laser-active medium, a high-energy laser beam is generated and focused onto the workpiece or welding wire, melting the material and forming a weld. Laser welding has advantages such as a small heat-affected zone, minimal workpiece deformation, strong penetration capability, high welding speed, and high flexibility, and is widely used in various manufacturing industries.

[0003] Handheld laser welding machines are very convenient to use, employing a laser welding torch by hand. They are less affected by the surrounding environment and suitable for various situations. Research has found that a welding angle of approximately 45° is optimal for handheld laser welding torches. This deflects most of the weld slag and sparks forward, reducing the likelihood of them entering the torch head and protecting the internal lenses from damage. However, current laser welding torches lack angle support mechanisms, yet a certain welding angle must be maintained. Therefore, operators must hold their arms up for extended periods, resulting in high workload and arm muscle fatigue. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a handheld laser welding gun assembly to solve the problem that prolonged use of existing handheld laser welding guns can easily lead to high workload and arm muscle fatigue.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A handheld laser welding machine welding gun assembly includes a laser welding gun and a wire feeding gun. A wire feeding bracket is fixed at the position of the laser welding gun corresponding to the position of the wire feeding gun. A hinge seat is movably hinged to the wire feeding bracket. The hinge seat is fixedly installed on the wire feeding gun. A guide wheel bracket is fixed to the bottom of the side of the hinge seat opposite to the gun head of the wire feeding gun. A support guide wheel is installed at the end of the guide wheel bracket opposite to the hinge seat.

[0007] A mounting base is fixed on the guide wheel bracket, and a positioning sleeve with its upper end tilted backward is fixedly mounted on the mounting base. An adjusting screw is movably inserted through the positioning sleeve. Locking nuts located at the upper and lower ends of the positioning sleeve are installed on the adjusting screw. A supporting roller is mounted on the lower end of the adjusting screw via a roller bracket. A supporting spring is installed between the locking nut (10) at the lower end of the positioning sleeve and the roller bracket on the adjusting screw. A guide rod movably inserted into the mounting base is also fixed on the upper end of the adjusting screw.

[0008] Preferably, the laser welding gun, wire feed gun, guide wheel bracket, and supporting guide wheel are located in the same vertical plane, and the angle between the line connecting the tip of the laser welding gun and the bottom of the supporting guide wheel and the axis of the laser welding gun is 40° to 50°.

[0009] Preferably, the supporting guide wheel is a cutter wheel with an unsharpened edge, and the supporting roller is a rubber-coated wheel with an arc-shaped edge.

[0010] Preferably, the positioning sleeve and the guide rod are parallel, and the angle between the positioning sleeve, the adjusting screw, and the guide rod and the front of the guide wheel bracket is 40° to 50°.

[0011] Preferably, the locking nut is a wing nut.

[0012] Preferably, a washer that is movably sleeved on the adjusting screw is provided between the support spring and the locking nut at the lower end of the positioning sleeve.

[0013] Preferably, the support roller is located above the front of the support guide wheel, and both the support roller and the support guide wheel correspond to the position of the handle of the laser welding gun.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention features a support guide wheel positioned below the wire feeder. During welding, the support guide wheel rolls along the weld seam, providing support for both the laser welding gun and the arm holding the gun, as well as guiding the welding path. Additionally, a support roller is positioned above the front of the support guide wheel, providing lateral support when welding vertical seams. This ensures that the tips of the laser welding gun and wire feeder are always aligned with the vertical seam, also providing support. This makes welding operations easier, reduces labor intensity, and alleviates arm fatigue. It solves the problem of excessive workload and arm muscle fatigue caused by prolonged arm raising when using existing handheld laser welding guns. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial structural diagram of the corresponding position of the supporting roller of this utility model;

[0018] Figure 3 This is a right view of the supporting rollers and supporting guide rollers used in welding flat seams according to this utility model;

[0019] Figure 4 This is a right view of the supporting rollers and supporting guide rollers used in welding vertical seams according to this utility model.

[0020] In the diagram: 1. Laser welding gun; 2. Wire feed gun; 3. Wire feed bracket; 4. Hinge seat; 5. Guide wheel bracket; 6. Support guide wheel; 7. Mounting seat; 8. Positioning sleeve; 9. Adjusting screw; 10. Locking nut; 11. Roller bracket; 12. Support roller; 13. Support spring; 14. Guide rod; 15. Shim; 16. Workpiece to be welded. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1-4 As shown, this utility model provides a technical solution: a handheld laser welding machine welding gun assembly, including a laser welding gun 1 and a wire feeding gun 2. A wire feeding bracket 3 is fixed at the position of the laser welding gun 1 corresponding to the position of the wire feeding gun 2. A hinge seat 4 is movably hinged to the wire feeding bracket 3. The hinge seat 4 is fixedly installed on the wire feeding gun 2. A guide wheel bracket 5 is fixed at the bottom of the side of the hinge seat 4 away from the gun head of the wire feeding gun 2. A support guide wheel 6 is installed at the end of the guide wheel bracket 5 away from the hinge seat 4.

[0023] The laser welding gun 1, wire feed gun 2, guide wheel bracket 5 and support guide wheel 6 are located on the same vertical plane, and the angle between the line connecting the tip of the laser welding gun 1 and the bottom of the support guide wheel 6 and the axis of the laser welding gun 1 is 40° to 50°. The optimal welding angle is about 45°. When welding at such an inclined angle, the generated welding slag and sparks are reflected forward and are less likely to enter the lens from the tip of the laser welding gun 1 and contaminate it.

[0024] A mounting base 7 is fixed on the guide wheel bracket 5. A positioning sleeve 8 with its upper end tilted backward is fixedly installed on the mounting base 7. An adjusting screw 9 is movably inserted through the positioning sleeve 8. Locking nuts 10 located at the upper and lower ends of the positioning sleeve 8 are installed on the adjusting screw 9. The locking nuts 10 are wing nuts. After loosening the locking nuts 10, the adjusting screw 9 can be moved up and down to adapt to the different included angles of the vertical seams between the two workpieces 16 to be welded under different conditions.

[0025] The lower end of the adjusting screw 9 is equipped with a support roller 12 via a roller bracket 11. A support spring 13 is installed on the adjusting screw 9 between the roller bracket 11 and the locking nut 10 at the lower end of the positioning sleeve 8. A washer 15 is movably sleeved on the adjusting screw 9 between the support spring 13 and the locking nut 10 at the lower end of the positioning sleeve 8. A guide rod 14 is also fixed at the upper end of the adjusting screw 9 and movably inserted into the mounting base 7.

[0026] like Figure 3 As shown, the flat seam is the joint between two parts 16 to be welded that are on the same plane, including horizontal seams and vertical seams. The support guide wheel 6 is a blade wheel with an unsharpened edge. When it rolls along the seam of the parts 16 to be welded, it not only has a guiding function, but also supports the laser welding gun 1.

[0027] like Figure 4 As shown, the support roller 12 is a rubber-coated wheel with an arc-shaped edge. The positioning sleeve 8 and the guide rod 14 are parallel. The angle between the positioning sleeve 8, the adjusting screw 9 and the guide rod 14 and the front of the guide wheel bracket 5 is 40° to 50°. The vertical seam is the joint between two parts 16 to be welded that are not on the same plane, including horizontal joints and vertical joints. When welding the vertical seam, it can be laterally supported by the support roller 12.

[0028] The support roller 12 is located above the front of the support guide roller 6. Both the support roller 12 and the support guide roller 6 correspond to the handle position of the laser welding gun 1. During the welding process, the support guide roller 6 and the support roller 12 provide support, which can reduce the arm muscle pressure caused by raising the arm for a long time during the welding process.

[0029] Working principle:

[0030] A support guide wheel 6 is provided below the wire feeder 2. During welding, the support guide wheel 6 rolls from left to right or from front to back along the weld seam between adjacent workpieces 16, providing 45° support for the laser welding gun 1 and the arm holding the laser welding gun 1, while also guiding the welding path. A support roller 12 is provided above the front of the support guide wheel 6. When welding vertical seams, the adjusting screw 9 can be moved up and down after loosening the locking nut 10 to provide support at different angles, adapting to different angles of vertical seams between the two workpieces 16 under different conditions. Tightening the locking nut 10 locks the vertical seam, thereby achieving side support and ensuring that the heads of the laser welding gun 1 and the wire feeder 2 are always aligned with the vertical seam, making the welding operation easier.

[0031] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hand-held laser welder torch assembly comprising a laser welding torch (1) and a wire feeder torch (2), characterized in that: The laser welding gun (1) is fixed with a wire feeding bracket (3) at the position corresponding to the wire feeding gun (2). The wire feeding bracket (3) is movably hinged with a hinge seat (4). The hinge seat (4) is fixedly installed on the wire feeding gun (2). A guide wheel bracket (5) is fixed at the bottom of the side of the hinge seat (4) away from the gun head of the wire feeding gun (2). A support guide wheel (6) is installed at the end of the guide wheel bracket (5) away from the hinge seat (4). A mounting base (7) is fixed on the guide wheel bracket (5). A positioning sleeve (8) with its upper end tilted backward is fixedly installed on the mounting base (7). An adjusting screw (9) is movably inserted through the positioning sleeve (8). A locking nut (10) located at the upper and lower ends of the positioning sleeve (8) is installed on the adjusting screw (9). A supporting roller (12) is installed at the lower end of the adjusting screw (9) through the roller bracket (11). A supporting spring (13) is installed on the adjusting screw (9) between the roller bracket (11) and the locking nut (10) at the lower end of the positioning sleeve (8). A guide rod (14) movably inserted into the mounting base (7) is also fixed at the upper end of the adjusting screw (9).

2. A hand-held laser welder torch assembly according to claim 1, wherein: The laser welding gun (1), wire feeder (2), guide wheel bracket (5) and support guide wheel (6) are located on the same vertical plane, and the angle between the line connecting the head end of the laser welding gun (1) and the bottom of the support guide wheel (6) and the axis of the laser welding gun (1) is 40° to 50°.

3. The handheld laser welding gun assembly according to claim 1, characterized in that: The supporting guide wheel (6) is a blade wheel with an unsharpened edge on the disc, and the supporting roller (12) is a rubber-coated wheel with an arc-shaped edge on the disc.

4. The handheld laser welding gun assembly according to claim 1, characterized in that: The positioning sleeve (8) and the guide rod (14) are parallel, and the angle between the positioning sleeve (8), the adjusting screw (9) and the guide rod (14) and the front of the guide wheel bracket (5) is 40° to 50°.

5. The handheld laser welding gun assembly according to claim 1, characterized in that: The locking nut (10) is a wing nut.

6. The handheld laser welding gun assembly according to claim 1, characterized in that: A washer (15) is provided between the support spring (13) and the locking nut (10) at the lower end of the positioning sleeve (8), which is movably sleeved on the adjusting screw (9).

7. The handheld laser welding gun assembly according to claim 1, characterized in that: The support roller (12) is located above the front of the support guide roller (6), and both the support roller (12) and the support guide roller (6) correspond to the handle position of the laser welding gun (1).

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