Metal pipeline installation site welding equipment

Abstract

The invention relates to the technical field of welding. The metal pipeline installation site welding equipment comprises a connecting block and a welding gun connected to the connecting block. The device further comprises a support, a positioning plate and idler wheels. A support is rotationally connected to the connecting block and fixedly connected with the welding gun. The connecting block is connected with a plurality of positioning plates; and each positioning plate is rotationally connected with a plurality of rollers. Through cooperation of the support, the positioning plate and the rolling wheels, a worker can easily control the welding gun to do circular motion and regularly swing left and right along the gap between the adjacent pipelines, the welding gun can stably and efficiently weld the adjacent pipelines, the manual operation difficulty is greatly reduced, meanwhile, the positioning plate is also used for intercepting splashing welding slag, and the welding efficiency is improved. High-temperature welding slag is prevented from splashing to the artificial palm, and the safety performance can be improved.

Description

Technical Field

[0001] This invention relates to the technical field of welding. More specifically, this invention relates to on-site welding equipment for metal pipe installation. Background Technology

[0002] During the installation of metal pipes, it is often necessary to weld the annular gap between two adjacent pipe sections. This gap is circular, requiring the welding torch to not only move precisely in a complete circle along the gap to ensure the weld seam continuously and evenly covers the entire joint area, but also to simultaneously oscillate left and right in a reciprocating motion. This combined movement effectively controls the width and shape of the molten pool, resulting in a fuller, neater, and more aesthetically pleasing weld. However, this operation places extremely high technical demands on manual welding: the operator must simultaneously coordinate the rotational trajectory of the arm and the rhythm of the lateral oscillation, keeping the welding torch precisely aligned with the center of the narrow gap while maintaining a stable welding speed and angle. The operation is highly difficult and relies heavily on the welder's experience and skill. Summary of the Invention

[0003] To overcome the drawbacks of existing welding torches, which require operators to simultaneously coordinate the rotation trajectory and lateral swing rhythm of their arms when welding two adjacent pipe sections, maintaining precise alignment of the welding torch with the center of the narrow gap while ensuring stable welding speed and angle, resulting in high operational difficulty, this invention provides a metal pipe installation field welding device.

[0004] The technical solution is as follows: A metal pipe installation on-site welding equipment includes a connecting block and a welding torch connected to the connecting block; it also includes a bracket, a positioning plate and rollers; the bracket is rotatably connected to the connecting block, and the bracket is fixedly connected to the welding torch; a number of positioning plates are connected to the connecting block; and a number of rollers are rotatably connected to each positioning plate.

[0005] Furthermore, a through hole is provided in the middle of the connecting block.

[0006] Furthermore, it also includes an adjustment assembly, which includes a round rod, a spring, a sleeve, a lead screw, a first linkage block, and a second linkage block. Several round rods are fixedly connected to the connecting block, and the round rods are slidably connected to the positioning plate. Several springs are fixedly connected to each positioning plate, and the springs are fixedly connected to the connecting block. A sleeve is fixedly connected to the connecting block. A lead screw is screwed onto the sleeve. A first linkage block is rotatably connected to the lead screw, and the first linkage block is slidably connected to the connecting block. A second linkage block is fixedly connected to each positioning plate, and the contact surfaces between the second linkage block and the first linkage block are both set as inclined surfaces, and the second linkage block cooperates with the first linkage block.

[0007] Furthermore, it also includes a knob; a knob is fixed to the lead screw.

[0008] Furthermore, it also includes a limiting ring; a limiting ring is fixed to the welding torch, and the limiting ring cooperates with the positioning plate.

[0009] Furthermore, it also includes auxiliary components, which include elastic telescopic rods and movable blocks; several elastic telescopic rods are fixedly connected to each positioning plate; each positioning plate has a movable block on its side, and the movable block is fixedly connected to the telescopic end of the corresponding elastic telescopic rod.

[0010] Furthermore, it also includes a handle; the welding torch is fixedly fitted with a handle.

[0011] Furthermore, a rubber sleeve is provided on the surface of the grip.

[0012] Furthermore, each active block is equipped with two bends.

[0013] Furthermore, the surface of the active block is set to a smooth surface.

[0014] The present invention has the following advantages: First, by combining the bracket, positioning plate and roller, the welding gun can be easily controlled by the operator to move in a circular motion and swing left and right regularly along the gap between adjacent pipes, so that the welding gun can weld adjacent pipes stably and efficiently, greatly reducing the difficulty of manual operation. At the same time, the positioning plate is also used to intercept the splashing welding slag, preventing the high temperature welding slag from splashing onto the operator's palm, which helps to improve safety performance. Second, by cooperating with linkage block one and linkage block two, the distance between the two positioning plates can be adjusted, so that the positioning plates can be used to position the welding gun in pipes with various gap widths, which helps to improve applicability. 3. The positioning plate is used to position the welding torch in the middle of the gap between adjacent pipes. It is also used in conjunction with the limiting ring to limit the swing distance of the welding torch, so that the manual can easily control the welding torch to swing the same distance each time, ensuring that the weld width remains stable and further reducing the difficulty of operation. Fourth, by using the elastic telescopic rod and the movable block in combination, the positioning plate can pass over protruding impurities on the pipe, thereby avoiding the positioning plate from getting stuck and ensuring that the welding operation can be carried out stably. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of the on-site welding equipment for metal pipe installation of the present invention is shown; Figure 2 This diagram illustrates the first application of the on-site welding equipment for metal pipe installation according to the present invention. Figure 3 A second schematic diagram of the on-site welding equipment for metal pipe installation of the present invention is shown; Figure 4 A schematic diagram of the limiting ring of the present invention is shown; Figure 5A schematic diagram of the structure of the adjustment component of the present invention is shown; Figure 6 A schematic diagram of the auxiliary component of the present invention is shown.

[0016] The meanings of the reference numerals in the attached diagram are as follows: 1-Connecting block, 2-Welding torch, 3-Bracket, 4-Positioning plate, 5-Roller, 6-Pipe, 201-Round rod, 202-Spring, 203-Sleeve, 204-Screw rod, 205-Linkage block one, 206-Linkage block two, 207-Knob, 208-Limit ring, 209-Elastic telescopic rod, 2010-Moving block, 2011-Handle, 201091-Bending part. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the directional terms such as up, down, left, right, front, back, inside, and outside used in this text are based solely on the accompanying drawings and are not intended to specifically limit the invention.

[0018] Example 1: A metal pipe installation field welding equipment, such as... Figures 1-5 As shown, it includes a connecting block 1 and a welding torch 2; the welding torch 2 is connected to the connecting block 1; it also includes a bracket 3, a positioning plate 4 and rollers 5; the bracket 3 is rotatably connected to the connecting block 1, the bracket 3 is fixed to the welding torch 2, and the bracket 3 is made of alloy material; two positioning plates 4 are connected to the connecting block 1; two rollers 5 are rotatably connected to each positioning plate 4.

[0019] A through hole is provided in the middle of the connecting block 1, which allows a person to grip the connecting block 1 through the through hole and then move the connecting block 1 and the parts on it, thus improving the ease of operation.

[0020] During welding, the operator grips the connecting block 1 and moves the equipment, inserting the two positioning plates 4 into the gap between the two pipes 6. The opposing sides of the two positioning plates 4 contact the corresponding end faces of the pipes 6, and the four rollers 5 contact the outer ring surfaces of the corresponding pipes 6. At this point, the positioning plates 4 and rollers 5 work together to position the welding torch 2 at the center of the gap between adjacent pipes 6. Then, the operator presses the connecting block 1 against the pipe 6 while simultaneously moving it in a circular motion. Under the limiting action of the positioning plates 4 and rollers 5, the connecting block 1 and its components can easily move in a circular motion along the gap between adjacent pipes 6, allowing the welding torch 2 to easily move in a circular motion along the gap between adjacent pipes 6. Simultaneously, the operator reciprocates by swinging the welding torch 2, causing the support 3 to rotate. Under the limiting and guiding effect of the bracket 3, the welding torch 2 can swing back and forth regularly, thus enabling the welding torch 2 to weld adjacent pipes 6 stably and efficiently, greatly reducing the difficulty of manual operation. During the welding process, the positioning plate 4 is also used to intercept the spattering welding slag, preventing the high-temperature welding slag from splashing onto the palm of the operator, which helps to improve safety performance. In use, the bracket 3, the positioning plate 4 and the roller 5 work together to allow the operator to easily control the welding torch 2 to move in a circular motion and swing left and right regularly along the gap between adjacent pipes 6, enabling the welding torch 2 to weld adjacent pipes 6 stably and efficiently, greatly reducing the difficulty of manual operation. At the same time, the positioning plate 4 is also used to intercept the spattering welding slag, preventing the high-temperature welding slag from splashing onto the palm of the operator, which helps to improve safety performance.

[0021] It also includes an adjustment assembly, which includes a round rod 201, a spring 202, a sleeve 203, a lead screw 204, a first linkage block 205, and a second linkage block 206. Two round rods 201 are fixedly connected to the connecting block 1, and the round rods 201 are slidably connected to the positioning plate 4. Two springs 202 are sleeved on each round rod 201, one end of the spring 202 is fixedly connected to the connecting block 1, and the other end of the spring 202 is fixedly connected to the corresponding positioning plate 4. A sleeve 203 is fixedly connected to the connecting block 1. A lead screw 204 is screwed onto the sleeve 203. A first linkage block 205 is rotatably connected to the lead screw 204, and the first linkage block 205 is slidably connected to the connecting block 1. A second linkage block 206 is welded onto each positioning plate 4, and the contact surfaces between the second linkage block 206 and the first linkage block 205 are both set as inclined surfaces.

[0022] It also includes a knob 207; the knob 207 is fixedly connected to the lead screw 204, and the manual operation of the knob 207 drives the lead screw 204 to rotate, making it more convenient to apply force.

[0023] The gap width between adjacent pipes 6 varies under different installation conditions. The positioning plate 4 cannot fit the pipes 6 with different gap widths, leading to positioning failure and low applicability. Therefore, an adjustment component is installed on the connecting block 1. Based on the gap width between adjacent pipes 6, the screw 204 is manually rotated via the knob 207. While rotating within the sleeve 203, the screw 204 moves downwards, causing the first linkage block 205 to move downwards. This causes the first linkage block 205 to push two second linkage blocks 206 to move in opposite directions. The second linkage blocks 206 cause the positioning plate 4 to slide on the round rod 201 and stretch the spring 202. This causes the two positioning plates 4 to move in opposite directions, adjusting the distance between them so that the shortest straight line length on the opposite sides of the two positioning plates 4 is the same as the gap width between adjacent pipes 6. After the positioning plates 4 are inserted into the gap between adjacent pipes 6, both positioning plates 4 can contact the corresponding pipes 6, thus ensuring the positioning function of the positioning plates 4 for the welding gun 2. In use, the distance between the two positioning plates 4 can be adjusted by the cooperation of linkage block 1 205 and linkage block 2 206, so that the positioning plates 4 can be used to position the welding gun 2 for pipes 6 with various gap widths, which helps to improve applicability.

[0024] It also includes a locating ring 208; the locating ring 208 is fixedly attached to the welding torch 2.

[0025] When manually moving the welding torch 2 back and forth, it is necessary to deliberately control the angle of each swing to ensure that the weld width remains stable, which is quite difficult to operate. Therefore, a limiting ring 208 is set on the welding torch 2. When the welding torch 2 is manually moved back and forth, the welding torch 2 drives the limiting ring 208 to swing back and forth until the limiting ring 208 contacts the positioning plate 4. Only then does the operator change the direction of movement of the welding torch 2. In this way, the positioning plate 4 can limit the movement distance of the limiting ring 208, so that the distance of each swing of the welding torch 2 is always the same, thereby ensuring that the weld width remains stable. In use, the positioning plate 4, which is used to position the welding torch 2 in the middle of the gap between adjacent pipes 6, is also used in conjunction with the limiting ring 208 to limit the swing distance of the welding torch 2. This allows the operator to easily control the distance of each swing of the welding torch 2 to be the same, ensuring that the weld width remains stable, and further reducing the difficulty of operation.

[0026] Example 2, based on Example 1, such as Figure 6 As shown, it also includes auxiliary components, which include elastic telescopic rods 209 and movable blocks 2010; four elastic telescopic rods 209 are fixedly connected to each positioning plate 4; a movable block 2010 is provided on the side of each positioning plate 4, and the movable block 2010 is fixedly connected to the telescopic end of the corresponding elastic telescopic rod 209.

[0027] It also includes a handle 2011; the handle 2011 is fixedly attached to the welding torch 2, and the operator can grip the handle 2011 and then swing the welding torch 2, making the operation more convenient.

[0028] The grip 2011 has a rubber sleeve on its surface to increase friction and prevent slippage.

[0029] Each active block 2010 has two bending sections 201091.

[0030] The surface of the active block 2010 is set to a smooth surface to reduce frictional resistance.

[0031] Some pipes 6 may develop protruding impurities on their end faces, which can interfere with the movement of the positioning plate 4. Therefore, an auxiliary component is installed on the positioning plate 4. When the lower part of the positioning plate 4 is manually inserted into the gap between adjacent pipes 6, the two movable blocks 2010 contact the corresponding end faces of pipes 6. At this time, the positioning plate 4 and the movable blocks 2010 work together to position the welding torch 2, aligning the welding torch 2 with the center of the gap between adjacent pipes 6. When the manual operator moves the equipment in a circular motion using the connecting block 1, the bent part 201091 of the movable block 2010 contacts the protruding impurities, which then block and limit the movement of the movable block 2010. The movable block 2010 moves towards the corresponding positioning plate 4, compressing the elastic telescopic rod 209. When the movable block 2010 passes over the protruding impurities, the elastic telescopic rod 209 rebounds, causing the movable block 2010 to move back to its original position. This allows the positioning plate 4 to pass over the protruding impurities smoothly, avoiding jamming. During this process, the welding torch 2 may deviate slightly, but this is within the error range and will not affect the welding operation. In use, the elastic telescopic rod 209 and the movable block 2010 work together to allow the positioning plate 4 to pass over the protruding impurities on the pipe 6, thereby preventing the positioning plate 4 from jamming and ensuring stable welding operations.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A metal pipe installation field welding device, comprising a connecting block (1) and a welding torch (2) connected to the connecting block (1); characterized in that, It also includes a bracket (3), a positioning plate (4) and rollers (5); the bracket (3) is rotatably connected to the connecting block (1), and the bracket (3) is fixedly connected to the welding gun (2); several positioning plates (4) are connected to the connecting block (1); several rollers (5) are rotatably connected to each positioning plate (4).

2. The on-site welding equipment for metal pipe installation according to claim 1, characterized in that, A through hole is provided in the middle of the connecting block (1).

3. The on-site welding equipment for metal pipe installation according to claim 1, characterized in that, It also includes an adjustment assembly, which includes a round rod (201), a spring (202), a sleeve (203), a lead screw (204), a first linkage block (205), and a second linkage block (206); several round rods (201) are fixedly connected to the connecting block (1), and the round rods (201) are slidably connected to the positioning plate (4); several springs (202) are fixedly connected to each positioning plate (4), and the springs (202) are fixedly connected to the connecting block (1); the connecting block (1) A sleeve (203) is fixedly connected to the sleeve (203); a lead screw (204) is screwed onto the sleeve (203); a first linkage block (205) is rotatably connected to the lead screw (204), and the first linkage block (205) is slidably connected to the connecting block (1); a second linkage block (206) is fixedly connected to each positioning plate (4), and the contact surfaces of the second linkage block (206) and the first linkage block (205) are both set as inclined surfaces, and the second linkage block (206) cooperates with the first linkage block (205).

4. The on-site welding equipment for metal pipe installation according to claim 3, characterized in that, It also includes a knob (207); a knob (207) is fixedly connected to the lead screw (204).

5. The on-site welding equipment for metal pipe installation according to claim 4, characterized in that, It also includes a limiting ring (208); the limiting ring (208) is fixed on the welding torch (2), and the limiting ring (208) cooperates with the positioning plate (4).

6. The on-site welding equipment for metal pipe installation according to claim 5, characterized in that, It also includes auxiliary components, including elastic telescopic rods (209) and movable blocks (2010); several elastic telescopic rods (209) are fixedly connected to each positioning plate (4); each positioning plate (4) has a movable block (2010) on its side, and the movable block (2010) is fixedly connected to the telescopic end of the corresponding elastic telescopic rod (209).

7. The on-site welding equipment for metal pipe installation according to claim 6, characterized in that, It also includes a handle (2011); the welding torch (2) has a handle fixed to it (2011).

8. The on-site welding equipment for metal pipe installation according to claim 7, characterized in that, The grip (2011) has a rubber sleeve on its surface.

9. The on-site welding equipment for metal pipe installation according to claim 8, characterized in that, Each active block (2010) has two bends (201091).

10. A metal pipe installation field welding equipment according to any one of claims 8-9, characterized in that, The surface of the active block (2010) is set to a smooth surface.

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