A composite barrel structure for a carbon dioxide welding torch and the welding torch itself.

Abstract

This utility model relates to the field of welding torch technology, specifically to a composite barrel structure and welding torch for carbon dioxide welding torches. The composite barrel structure includes a straight tube section and a bent tube section. The straight tube section is connected to the torch body, and the bent tube section is connected and fitted to the straight tube section. The connection between the bent tube section and the straight tube section forms a rotating fit structure to adjust the angle of the bent tube section relative to the straight tube section in the circumferential direction. This utility model, through improvements to the fit structure of the bent tube section and the straight tube section, allows for flexible adjustment of the circumferential angle of the bent tube section, thus adapting to different working environments. When encountering relatively complex and difficult-to-operate welding positions, rotating the bent tube section allows for adjustment of the welding torch angle, enabling operation at different welding positions, improving work efficiency, reducing the labor intensity of welders, and consequently reducing welding quality problems.

Description

Technical Field

[0001] This utility model relates to the field of welding torch technology, specifically to a composite barrel structure for a carbon dioxide welding torch and the welding torch itself. Background Technology

[0002] In modern industrial manufacturing, welding technology, as an indispensable key process, is widely used in many industries such as automobile manufacturing, machining, shipbuilding, and building steel structures. Carbon dioxide welding torches, with their advantages of high efficiency, low cost, and good weld quality, are widely used in various welding operations.

[0003] However, the CO2 welding torches commonly available on the market have relatively fixed structural designs and lack flexible adjustability, often revealing many problems when dealing with complex welding structures. Because the shape, size, and relative positions of the components of the welding torch are basically fixed, the torch is difficult to adapt to diverse welding scenarios when welding operations involve workpieces of different angles, shapes, and positions, and is severely limited by the welding angle.

[0004] For example, in automobile manufacturing, structures such as the frame and body are composed of numerous irregularly shaped, interlocking parts. Welding requires the welding torch to be able to operate flexibly at multiple angles to ensure the integrity and quality of the weld. However, traditional CO2 welding torches struggle to achieve this. Operators often find it difficult to operate these complex structures, requiring frequent adjustments to the workpiece position or the use of additional auxiliary tools. This not only significantly reduces welding efficiency but also places extremely high demands on the welding worker's skills and physical strength, increasing labor intensity.

[0005] Furthermore, because welding torches cannot be precisely adapted to different welding positions, poor contact between the welding wire and the workpiece, unstable arcs, and unsatisfactory weld formation are common during welding, resulting in welding quality problems such as undercut, incomplete penetration, slag inclusions, and uneven weld appearance. These quality issues not only affect the product's appearance and performance but may also pose safety hazards during use, increasing subsequent rework costs and maintenance difficulty. Therefore, a more reasonable technical solution is needed to address the technical problems existing in the current technology. Utility Model Content

[0006] To overcome at least one of the aforementioned defects, this utility model proposes a composite barrel structure for a carbon dioxide welding torch and a welding torch itself. The aim is to innovatively improve existing carbon dioxide welding torches by optimizing their structural design, enabling flexible operation in different welding positions. This improves welding efficiency, reduces the workload and intensity of welding workers, and fundamentally reduces welding quality problems. It provides the industrial manufacturing sector with a more efficient, reliable, and adaptable carbon dioxide welding device, promoting the further development and improvement of welding technology.

[0007] To achieve the above objectives, the welding torch disclosed in this utility model can adopt the following technical solution:

[0008] A composite barrel structure for a carbon dioxide welding torch includes a straight tube section and a bent tube section. The straight tube section is connected to the torch body, and the bent tube section is connected and fitted to the straight tube section. The connection between the bent tube section and the straight tube section forms a rotational fit structure to adjust the angle of the bent tube section relative to the straight tube section in the circumferential direction.

[0009] The aforementioned composite barrel structure allows for adjustment of the circumferential angle of the bent section according to the actual working environment through the rotational cooperation between the bent section and the straight section, thereby improving the convenience of welding operations and making it flexible and convenient to use.

[0010] Furthermore, the fitting structure between the bend and the straight pipe can be implemented in various ways. Here, we optimize the design and propose one feasible option: the bend and the straight pipe are nested together. When using this solution, the port of the bend can be inserted into the port of the straight pipe, or vice versa. In some solutions, a sleeve can be provided, allowing both the ports of the bend and the straight pipe to be inserted simultaneously.

[0011] Furthermore, the rotational fit structure can be constructed in various forms, and its structure is not limited to a single one. Here, we optimize and propose one feasible option: the rotational fit structure includes several positioning holes arranged along the circumferential direction, and several elastic beads that engage with the positioning holes. When the elastic beads are in the retracted position, the elastic beads exit the positioning holes, and the bent pipe and the straight pipe are unlocked and rotate relative to each other on the circumference. When the elastic beads are in the protruding position, the elastic beads engage with the positioning holes, and the bent pipe and the straight pipe are locked and fixed relative to each other on the circumference. With the above scheme, the rotational fit structure not only realizes the adjustment of the circumferential angle of the bent pipe, but also realizes the fixation of the relative angle between the bent pipe and the straight pipe.

[0012] Furthermore, the number of elastic beads used for locking or unlocking is not limited. Here, we optimize and propose one feasible option: the number of elastic beads is at least one, and the number of elastic beads is at most equal to the number of positioning holes.

[0013] Furthermore, the positioning hole and the elastic bead work together to achieve circumferential angle adjustment of the straight pipe section and the curved pipe section. The setting method is not limited to one. Here, we optimize and propose one feasible option: the positioning hole is located in the straight pipe section and the elastic bead is located in the curved pipe section; or the positioning hole is located in the curved pipe section and the elastic bead is located in the straight pipe section.

[0014] The above content discloses the barrel structure of the welding torch, and this utility model also discloses the welding torch.

[0015] A carbon dioxide welding torch is provided with the composite barrel structure described above.

[0016] Compared with the prior art, some of the beneficial effects of the technical solution disclosed in this utility model include:

[0017] This invention improves the fit between the bend and straight sections, allowing for flexible adjustment of the circumferential angle of the bend to adapt to different working environments. When encountering relatively complex or difficult-to-operate welding positions, rotating the bend allows adjustment of the welding torch angle, enabling operation at different welding positions. This improves work efficiency, reduces the labor intensity of welders, and consequently reduces welding quality issues. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a composite gun barrel structure.

[0020] Figure 2 for Figure 1 A magnified schematic diagram of the local structure at point I.

[0021] In the above attached figures, the meanings of each label are as follows:

[0022] 1. Control component; 2. Bending section; 3. Straight section; 4. Flexible insert; 5. Positioning hole. Detailed Implementation

[0023] The following description, in conjunction with the accompanying drawings and specific embodiments, further illustrates this embodiment.

[0024] To address the shortcomings of existing CO2 welding torches, such as fixed barrel structures that hinder angle adjustment and reduce flexibility in welding operations at complex angles, the following embodiments optimize and overcome these deficiencies.

[0025] Example 1

[0026] like Figure 1 , Figure 2 As shown, this embodiment provides a composite barrel structure for a carbon dioxide welding torch, including a straight tube section 3 and a bent tube section 2. The straight tube section 3 is connected to the torch body, and the bent tube section 2 is connected and fitted to the straight tube section 3. The connection between the bent tube section 2 and the straight tube section 3 forms a rotation fit structure to adjust the angle of the bent tube section 2 relative to the straight tube section 3 in the circumferential direction.

[0027] The aforementioned composite barrel structure allows for adjustment of the circumferential angle of the bent section 2 according to the actual working environment through the rotational engagement of the bent section 2 and the straight section 3, thereby improving the convenience of welding operations and making it flexible and convenient to use.

[0028] The fitting structure of the bend section 2 and the straight section 3 can be implemented in various ways. This embodiment optimizes the process and adopts one feasible option: the bend section 2 and the straight section 3 are nested together. When using this scheme, the port of the bend section 2 can be inserted into the port of the straight section 3, or vice versa. In some schemes, a sleeve can also be provided, allowing the ports of both the bend section 2 and the straight section 3 to be inserted into the sleeve simultaneously.

[0029] The rotating fit structure can be constructed in various forms, and its structure is not limited to a single one. This embodiment optimizes and adopts one feasible option: the rotating fit structure includes a plurality of positioning holes 5 arranged along the circumferential direction, and a plurality of elastic beads 4 that engage with the positioning holes 5. When the elastic beads 4 are in the retracted position, the elastic beads 4 are disengaged from the positioning holes 5, the bent tube part 2 and the straight tube part 3 are unlocked and rotate relative to each other on the circumference. When the elastic beads 4 are in the protruding position, the elastic beads 4 are engaged with the positioning holes 5, the bent tube part 2 and the straight tube part 3 are locked and fixed relative to each other on the circumference. With the above scheme, the rotating fit structure not only realizes the adjustment of the circumferential angle of the bent tube, but also realizes the fixation of the relative angle between the bent tube and the straight tube.

[0030] The elastic bead 4 is used for locking or unlocking, and its number is not limited to one. This embodiment optimizes and adopts one of the feasible options: the number of elastic beads 4 is at least one, and the number of elastic beads 4 is at most equal to the number of positioning holes 5.

[0031] The positioning hole 5 and the elastic bead 4 work together to adjust the circumferential angle of the straight pipe section 3 and the bent pipe section 2. The setting method is not limited to one. This embodiment optimizes and adopts one of the feasible options: the positioning hole 5 is located in the straight pipe section 3 and the elastic bead 4 is located in the bent pipe section 2; or the positioning hole 5 is located in the bent pipe section 2 and the elastic bead 4 is located in the straight pipe section 3.

[0032] In some feasible solutions, in order to facilitate the control of the elastic embedded bead 4, the structure can be optimized to improve the flexibility of adjustment. This embodiment optimizes and adopts one feasible option: the rotational engagement structure also includes a control member 1, which is used to control the elastic embedded bead 4 to move to the retracted position or the protruding position.

[0033] Preferably, the control element 1 includes a button. Specifically, the operation of the button controls the switching of the elastic ball 4 between the retracted position and the protruding position. Those skilled in the art can select from mature technologies as needed, which are clearly disclosed prior art and will not be described in detail here.

[0034] Example 2

[0035] The above embodiment 1 discloses the barrel structure of the welding torch, and this embodiment also discloses the welding torch.

[0036] A carbon dioxide welding torch is provided with the composite barrel structure described above.

[0037] The above are the embodiments listed in this example. However, this example is not limited to the optional embodiments described above. Those skilled in the art can arbitrarily combine the above methods to obtain other various embodiments. Anyone can derive other various forms of embodiments under the guidance of this example. The above specific embodiments should not be construed as limiting the scope of protection of this example. The scope of protection of this example should be defined in the claims.

Claims

1. A composite torch barrel structure for a carbon dioxide welding torch, characterized by: It includes a straight pipe section (3) and a bent pipe section (2). The straight pipe section (3) is connected to the gun body, and the bent pipe section (2) is connected and fitted with the straight pipe section (3). The connection between the bent pipe section (2) and the straight pipe section (3) forms a rotating fit structure and is used to adjust the angle of the bent pipe section (2) relative to the straight pipe section (3) in the circumferential direction.

2. The composite barrel structure of the carbon dioxide welding torch according to claim 1, characterized in that: The bent pipe section (2) and the straight pipe section (3) are connected to each other.

3. The composite barrel structure of the carbon dioxide welding torch according to claim 1, characterized in that: The rotating fit structure includes a plurality of positioning holes (5) arranged along the circumferential direction, and a plurality of elastic beads (4) that engage with the positioning holes (5). When the elastic beads (4) are in the retracted position, the elastic beads (4) exit the positioning holes (5), the bent tube part (2) and the straight tube part (3) are unlocked and rotate relative to each other on the circumference. When the elastic beads (4) are in the protruding position, the elastic beads (4) engage with the positioning holes (5), the bent tube part (2) and the straight tube part (3) are locked and fixed relative to each other on the circumference.

4. The composite barrel structure of the carbon dioxide welding torch according to claim 3, characterized in that: The number of elastic beads (4) is at least one, and the number of elastic beads (4) is at most equal to the number of positioning holes (5).

5. The composite barrel structure of the carbon dioxide welding torch according to claim 3, characterized in that: The positioning hole (5) is located in the straight pipe section (3), and the elastic bead (4) is located in the bent pipe section (2); or the positioning hole (5) is located in the bent pipe section (2), and the elastic bead (4) is located in the straight pipe section (3).

6. A carbon dioxide welding torch, characterized in that: The gun is equipped with a composite barrel structure as described in any one of claims 1 to 5.

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