Submerged arc welding machine

Abstract

The utility model discloses a submerged arc welding machine, which relates to the technical field of welding equipment and comprises a frame, a welding wire, a welding head and at least two rotatably mounted clamping rollers, a wheel shaft is rotatably mounted on the frame, and a traveling wheel is mounted at the end of the wheel shaft; the clamping rollers are clamped on the two sides of the welding wire. A transmission structure is connected between the wheel shaft and the clamping roller, the wheel shaft drives the clamping roller to rotate through the transmission structure, and the clamping roller rotates to drive a welding wire to enter the welding head. The trolley power of the submerged arc welding machine is utilized, the trolley axle drives the pinch roll to rotate through the transmission structure, and the pinch roll clamps a welding wire to feed the welding wire to a welding head; when the trolley moves along the welding seam, the movement amount of the trolley is in direct proportion to the needed welding wire amount, and the welding wires can be stably and evenly supplied.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a submerged arc welding machine. Background Technology

[0002] Submerged arc welding machines are welding machines that use an electric arc burning under a layer of flux to perform welding. Their inherent advantages, such as stable welding quality, high welding productivity, and minimal arc light and fumes, make them a primary welding machine in the fabrication of pressure vessels, pipe sections, and box-beam / column steel structures. For example, the utility model patent CN209998533U describes a submerged arc welding machine with stable wire feeding. This machine uses a rotating pressure roller to move the welding wire and feed it to the welding head. However, this wire feeding method requires a dedicated motor to drive the pressure roller. Utility Model Content

[0003] The purpose of this utility model is to solve the problems in the prior art mentioned above and to provide a submerged arc welding machine.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A submerged arc welding machine includes a frame, welding wire, welding head, and at least two rotatably mounted clamping rollers. A wheel axle is rotatably mounted on the frame, and a traveling wheel is mounted at the end of the wheel axle. The clamping rollers clamp the welding wire on both sides. A transmission structure is connected between the wheel axle and the clamping rollers. The wheel axle drives the clamping rollers to rotate through the transmission structure, and the rotation of the clamping rollers drives the welding wire into the welding head.

[0006] Furthermore, the transmission ratio of the transmission structure is adjustable.

[0007] Furthermore, the transmission structure includes an adjustable gearbox, a first transmission mechanism, and a second transmission mechanism; the adjustable gearbox is mounted on the upper side of the frame, the input end of the adjustable gearbox is connected to the first transmission mechanism between the wheel axle, and the output end of the adjustable gearbox is connected to the clamping roller between the first transmission mechanism and the second transmission mechanism.

[0008] Furthermore, both the first transmission mechanism and the second transmission mechanism are belt drive mechanisms.

[0009] Furthermore, a bracket is provided on the upper side of the frame, and the welding head and the reel for winding the welding wire are respectively installed at both ends of the upper part of the bracket.

[0010] Furthermore, a mounting frame is provided between the welding head and the bracket, and the clamping rollers are rotatably mounted on one side of the upper part of the mounting frame; the welding head is mounted on the lower part of the mounting frame.

[0011] Furthermore, the outer ring side of the clamping roller is provided with anti-slip texture.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes the power of the trolley of a submerged arc welding machine. Through a transmission structure, the trolley wheel axle drives the clamping roller to rotate. The clamping roller holds the welding wire and feeds it to the welding head. When the trolley moves along the weld seam, the amount of movement of the trolley is proportional to the amount of welding wire required, which can stably and evenly supply the welding wire.

[0014] The clamping rollers of this invention have anti-slip textures, which can stably clamp and convey welding wire. This invention adopts a transmission structure with an adjustable gearbox, which allows the transmission ratio between the wheel axle and the clamping rollers to be changed. When welding different weld seams, different amounts of welding wire are required per unit weld seam length. By adjusting the transmission ratio, the welding wire conveying speed can be adjusted, thereby adapting to the welding of different weld seams. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a side view of the structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the end structure of this utility model.

[0018] Figure 4 This is a schematic diagram of the clamping roller structure of this utility model.

[0019] In the diagram: 1. Frame; 2. Axle; 3. Wheel; 4. Bracket; 5. Reel; 6. Welding wire; 7. Mounting frame; 8. Welding head; 9. Clamping roller; 10. Adjustable gearbox; 11. First transmission mechanism; 12. Second transmission mechanism; 13. Flux hopper; 14. Flux conduit. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0021] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "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.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "provided with" should be interpreted broadly. For example, the object "provided with" can be a part of the main body, or it can be separately arranged from the main body and connected to it. This connection can be detachable or non-detachable. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further described in detail below with reference to the embodiments.

[0025] Specific embodiments of the submerged arc welding machine provided by this utility model:

[0026] Please see Figure 1-4 The submerged arc welding machine includes a frame 1, on which two axles 2 are rotatably mounted, and each axle 2 has a traveling wheel 3 mounted at both ends. During the welding process, the traveling wheel 3 and the axle 2 of the trolley rotate synchronously, and the traveling wheel 3 moves at a constant speed along the external welding track. The drive structure of the axle 2 of the trolley is existing technology and will not be described in detail in this embodiment.

[0027] A bracket 4 is installed on the upper side of the frame 1. The bracket 4 is T-shaped. An electrical control box is installed at one end of the bracket 4, and a reel 5 for winding welding wire 6 is also rotatably installed at the other end. The welding wire 6 is wound on the outside of the reel 5. During the output of the welding wire 6, the reel 5 is driven by the welding wire 6 and rotates automatically.

[0028] The other end of the bracket 4 is equipped with an mounting frame 7 and a flux hopper 13. In this embodiment, the mounting frame 7 is a vertical plate structure. The lower part of the mounting frame 7 is equipped with a welding head 8 for welding. Two clamping rollers 9 are rotatably mounted on one side of the upper part of the mounting frame 7. The two clamping rollers 9 are located on the upper side of the welding head 8 and are arranged horizontally side by side. The gap between the two clamping rollers 9 is smaller than the outer diameter of the welding wire 6. When clamping the wire, the end of the welding wire 6 is first inserted between the two clamping rollers 9. Rotating the clamping rollers 9 will allow the welding wire 6 to pass through the two clamping rollers 9. The two clamping rollers 9 tightly clamp the two sides of the welding wire 6. The clamping rollers 9 continue to rotate, which can continuously feed the welding wire 6 to the welding head 8.

[0029] like Figure 4 As shown, the outer ring side of the clamping roller 9 is provided with anti-slip texture, and the extension direction of the anti-slip texture is parallel to the axial direction of the clamping roller 9. The outer side of the clamping roller 9 has an annular groove, which forms a good wrap around the welding wire 6 and prevents the welding wire 6 from coming out. The horizontal distance between the relative bottoms of the grooves of the two clamping rollers 9 is less than the outer diameter of the welding wire 6, so that the clamping rollers 9 can tightly clamp the welding wire 6.

[0030] The flux hopper 13 is used to hold flux. The lower end of the flux hopper 13 is connected to the welding head 8 through the flux conduit 14 to deliver flux to the welding head 8.

[0031] An adjustable gearbox 10 is mounted on the upper side of the frame 1. The input end of the adjustable gearbox 10 is connected to a first transmission mechanism 11 via a wheel axle 2, and the output end of the adjustable gearbox 10 is connected to a second transmission mechanism 12 via a clamping roller 9. Both the first transmission mechanism 11 and the second transmission mechanism 12 are belt drive mechanisms, each consisting of two pulleys and a transmission belt, creating a linkage between the wheel axle 2 and the adjustable gearbox 10, and between the adjustable gearbox 10 and the clamping roller 9. In this embodiment, a synchronous belt drive mechanism is preferably used.

[0032] The adjustable gearbox 10, the first transmission mechanism 11, and the second transmission mechanism 12 form a transmission structure that links the wheel axle 2 with the clamping roller 9. The wheel axle 2 drives the clamping roller 9 to rotate through the transmission structure, and the rotation of the clamping roller 9 drives the welding wire 6 into the welding head 8. Specifically, during the welding process, the frame 1 moves along the external track and the weld seam. The rotation of the wheel axle 2 drives one clamping roller 9 to rotate through the transmission structure. Since the two clamping rollers 9 tightly clamp the welding wire 6, the rotation of the clamping roller 9 drives the welding wire 6 to feed, and the welding wire 6 is evenly supplied to the welding head 8.

[0033] The adjustable gearbox 10 enables transmission speed change, making the transmission ratio of the transmission structure adjustable. The adjustable gearbox 10 preferably uses a continuously variable transmission (CVT), and various CVTs are available on the market, which can be selected according to requirements. When welding different weld seams, the amount of welding wire 6 required per unit length varies depending on the depth, width, and shape of the weld seam. By adjusting the transmission ratio of the transmission structure, the rotational speed of the wheel axle 2 can be the same, while the rotational speed of the clamping rollers 9 can be different, thereby adjusting the wire feeding speed to meet the requirements of welding different weld seams.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A submerged arc welding machine, comprising a frame (1), a welding wire (6), a welding head (8), and at least two rotatably mounted clamping rollers (9), wherein an axle (2) is rotatably mounted on the frame (1), and a traveling wheel (3) is mounted at the end of the axle (2); the clamping rollers (9) clamp the welding wire (6) on both sides; characterized in that: A transmission structure is connected between the axle (2) and the clamping roller (9). The axle (2) drives the clamping roller (9) to rotate through the transmission structure. The rotation of the clamping roller (9) drives the welding wire (6) to enter the welding head (8).

2. The submerged arc welding machine according to claim 1, characterized in that: The transmission ratio of the transmission structure is adjustable.

3. The submerged arc welding machine according to claim 2, characterized in that: The transmission structure includes an adjustable gearbox (10), a first transmission mechanism (11), and a second transmission mechanism (12). The adjustable gearbox (10) is mounted on the upper side of the frame (1). The input end of the adjustable gearbox (10) is connected to the first transmission mechanism (11) between the wheel axle (2), and the output end of the adjustable gearbox (10) is connected to the second transmission mechanism (12) between the clamping roller (9).

4. The submerged arc welding machine according to claim 3, characterized in that: Both the first transmission mechanism (11) and the second transmission mechanism (12) are belt transmission mechanisms.

5. The submerged arc welding machine according to claim 1, characterized in that: The frame (1) is provided with a bracket (4) on the upper side, and the welding head (8) and the reel (5) for winding the welding wire (6) are respectively installed at both ends of the upper part of the bracket (4).

6. The submerged arc welding machine according to claim 5, characterized in that: An installation frame (7) is provided between the welding head (8) and the bracket (4), and the clamping rollers (9) are all rotatably installed on one side of the upper part of the installation frame (7); the welding head (8) is installed on the lower part of the installation frame (7).

7. The submerged arc welding machine according to claim 1, characterized in that: The outer ring side of the clamping roller (9) is provided with anti-slip texture.

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