Automatic welding device for circular seam of pipeline

Abstract

The utility model provides an automatic welding device for a circular seam of a pipeline, which relates to the technical field of pipeline welding and comprises a frame body, a rotating mechanism and a welding head are arranged on the frame body, an isolation mechanism is arranged on the welding head and comprises a second hydraulic cylinder arranged on the welding head, and the second hydraulic cylinder is connected with the rotating mechanism. A side block is fixedly installed at the telescopic end of the second hydraulic cylinder, a movable cover is fixedly installed on the side block, and a sealing belt connected with the welding head is connected to the movable cover. The telescopic end of the first hydraulic cylinder is controlled to stretch out, so that the telescopic end of the first hydraulic cylinder drives the movable cover to move downwards through the side block, the movable cover can wrap poisonous gas generated by welding, the poisonous gas moves into external purification equipment through the fixed pipe and the hose, and therefore the safety can be improved; the movable cover can shield light generated by welding, and the movable cover can block welding slag splashing generated by welding.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, specifically to an automatic pipeline circumferential welder. Background Technology

[0002] In industrial production, circumferential welding of pipelines is a common process. Circumferential welding usually refers to welding a ring-shaped joint at the end of a pipeline or at a bend to connect the two ends of the pipeline or to close the opening of the pipeline.

[0003] A search of Chinese Patent CN218856052U reveals a pipe welding device comprising a base, a clamping and rotating assembly fixedly installed at the bottom of the base, the clamping and rotating assembly including at least a receiving pipe, a compression ring, and a welding gun, a receiving pipe and a compression ring disposed inside the base, a welding gun disposed at the top of the base, and a grinding and collecting assembly fixedly installed at the edge of the base, the grinding and collecting assembly including at least a limiting box, a grinding machine, and a collecting frame. Compared with the prior art, the beneficial effects of this utility model are that, through the clamping and rotating assembly, pipes of different specifications can be clamped and processed, thereby meeting the needs of welding different pipes, and facilitating the rotation of the clamped pipe, realizing the automation of welding, thus avoiding the need for workers to change different angles to weld the pipe, thereby reducing the difficulty of welding and improving the work efficiency of welding.

[0004] Based on the above search and existing technology, it was found that the above patent has certain defects. During the welding process of pipe circumferential seams, a large amount of toxic gas is generated, which is not easy to isolate and has low safety. In addition, the welding slag produced is large and difficult to collect and clean. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic welding device for pipe circumferential seams.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] An embodiment of this utility model provides an automatic pipe circumferential welder, including a frame, a rotating mechanism on the frame, a welding head on the frame, an isolation mechanism on the welding head, and a second hydraulic cylinder on the welding head. A side block is fixedly installed on the telescopic end of the second hydraulic cylinder, a movable cover is fixedly installed on the side block, and a sealing strip connected to the welding head is connected to the movable cover.

[0008] The frame is equipped with a collection mechanism, which includes two fixed rods symmetrically fixedly installed on the frame. Each fixed rod is fixedly equipped with a fixed ring, and a rotating block is rotatably installed at the end of each fixed rod. A collection shell is fixedly installed on both rotating blocks. A torsion spring is connected between the fixed ring and the rotating block. An actuation component is provided between the frame and the collection shell.

[0009] Furthermore, the rotating mechanism includes a drive motor mounted on the frame, and a first gear is fixedly mounted on the output end of the drive motor.

[0010] Furthermore, the rotating mechanism also includes a support ring rotatably mounted on the frame, and two support frames are symmetrically fixedly mounted on the support ring. A gear ring that meshes with the first gear is fixedly mounted on both support frames.

[0011] Furthermore, each of the support frames is equipped with two first hydraulic cylinders, and a clamping shell is fixedly installed on the telescopic end of each first hydraulic cylinder.

[0012] Furthermore, the tube body is held together between every two of the aforementioned clamps.

[0013] Furthermore, a fixing tube is fixedly installed on the movable cover, and a flexible tube is connected to the fixing tube.

[0014] Furthermore, the triggering component includes a circular shell fixedly mounted on the frame, a circular block rotatably mounted on the inner side of the circular shell, a second gear meshing with the gear ring fixedly mounted on the circular block, a triggering rod fixedly mounted on the second gear, and a side rod adapted to the triggering rod fixedly mounted on the collecting shell.

[0015] The above-described solution of this utility model has at least the following beneficial effects:

[0016] 1. In this utility model, by controlling the extension end of the first hydraulic cylinder to extend, the extension end of the first hydraulic cylinder drives the movable cover to move downward through the side block, so that the movable cover can wrap the toxic gas generated by welding, and move the toxic gas to the external purification equipment through the fixed pipe and the hose, thereby improving safety. At the same time, the movable cover can block the bright light generated by welding and block the welding slag spatter generated by welding.

[0017] 2. In this utility model, the welding slag produced by welding falls into the inner side of the collection shell. The drive motor is controlled to operate, and the first gear, the gear ring and the second gear mesh to drive the trigger rod to move. The trigger rod drives the collection shell to rotate through the side rod. Under the elastic support of the torsion spring, the collection shell rotates back to its original position, so that the collection shell can pour the collected welding slag into one place, which is convenient for collection and cleaning. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an automatic pipe circumferential welding device according to the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the frame of an automatic pipe circumferential welding device according to the present invention;

[0020] Figure 3 This is a three-dimensional structural diagram of the movable cover of an automatic pipe circumferential welding device according to the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the collection shell of an automatic pipe circumferential welding device according to the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the trigger rod of an automatic pipe circumferential welding device according to the present invention;

[0023] Figure 6 This is a three-dimensional structural diagram of the fixed ring of an automatic pipe circumferential welding device according to the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Frame; 2. Drive motor; 3. First gear; 4. Gear ring; 5. Support frame; 6. First hydraulic cylinder; 7. Clamping shell; 8. Support ring; 9. Pipe body; 10. Welding head; 11. Second hydraulic cylinder; 12. Side block; 13. Movable cover; 14. Sealing strip; 15. Fixed pipe; 16. Hose; 17. Fixed rod; 18. Fixed ring; 19. Rotating block; 20. Collection shell; 21. Torsion spring; 22. Round shell; 23. Round block; 24. Second gear; 25. Actuating rod; 26. Side rod. Detailed Implementation

[0026] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0027] like Figures 1 to 6 As shown, an embodiment of this utility model provides an automatic pipe circumferential welding device, including a frame 1, a rotating mechanism on the frame 1, a welding head 10 fixedly mounted on the frame 1, a drive motor 2 fixedly mounted on the frame 1, a first gear 3 fixedly mounted on the output end of the drive motor 2, a support ring 8 rotatably mounted on the frame 1, two support frames 5 symmetrically fixedly mounted on the support ring 8, a toothed ring 4 meshing with the first gear 3 fixedly mounted on the two support frames 5, two first hydraulic cylinders 6 fixedly mounted on each support frame 5, a clamping shell 7 fixedly mounted on the telescopic end of each first hydraulic cylinder 6, and a pipe body 9 being clamped between every two clamping shells 7.

[0028] In this embodiment of the utility model, the operator moves the pipe body 9 between the two clamping shells 7 by controlling the handling equipment. By controlling the extension end of the first hydraulic cylinder 6 to extend, the extension end of the first hydraulic cylinder 6 drives the clamping shells 7 to clamp the pipe body 9. The operator controls the drive motor 2 to run, so that the output end of the drive motor 2 rotates and drives the first gear 3 to rotate. The first gear 3 rotates the gear ring 4 through meshing, so that the gear ring 4 drives the support frame 5 to move. The support frame 5 drives the pipe body 9 to rotate through the first hydraulic cylinder 6 and the clamping shells 7. The welding head 10 is controlled to perform circumferential welding at the contact position of the two pipe bodies 9.

[0029] Figures 1 to 6 As shown, the welding head 10 is provided with an isolation mechanism, which includes a second hydraulic cylinder 11 fixedly mounted on the welding head 10. A side block 12 is fixedly installed on the telescopic end of the second hydraulic cylinder 11. A movable cover 13 is fixedly installed on the side block 12. A sealing strip 14 connected to the welding head 10 is connected to the movable cover 13. A fixed pipe 15 is fixedly installed on the movable cover 13. A hose 16 is connected to the fixed pipe 15.

[0030] In this embodiment of the utility model, the operator connects the hose 16 to the external purification equipment through the connecting parts. The operator controls the extension end of the first hydraulic cylinder 6 to extend, so that the extension end of the first hydraulic cylinder 6 drives the movable cover 13 to move downward through the side block 12. The movable cover 13 can wrap the toxic gas generated by welding, and move the toxic gas into the external purification equipment through the fixed pipe 15 and the hose 16, thereby improving safety. At the same time, the movable cover 13 can block the bright light generated by welding and block the welding slag spatter generated by welding.

[0031] Figures 1 to 6As shown, a collection mechanism is provided on the frame 1. The collection mechanism includes two fixed rods 17 symmetrically fixedly installed on the frame 1. A fixed ring 18 is fixedly installed on each fixed rod 17. A rotating block 19 is rotatably installed at the end of each fixed rod 17. A collection shell 20 is fixedly installed on both rotating blocks 19. A torsion spring 21 is connected between the fixed ring 18 and the rotating block 19. An actuation component is provided between the frame 1 and the collection shell 20. The actuation component includes a circular shell 22 fixedly installed on the frame 1. A circular block 23 is rotatably installed on the inner side of the circular shell 22. A second gear 24 that meshes with a gear ring 4 is fixedly installed on the circular block 23. An actuation rod 25 is fixedly installed on the second gear 24. A side rod 26 that matches the actuation rod 25 is fixedly installed on the collection shell 20.

[0032] In this embodiment of the utility model, the welding slag produced by welding falls into the inner side of the collection shell 20. The operator controls the drive motor 2 to operate, and the first gear 3, the gear ring 4 and the second gear 24 mesh to drive the trigger rod 25 to move. The second gear 24 drives the round block 23 to rotate, so that the trigger rod 25 drives the collection shell 20 to rotate through the side rod 26. Under the elastic support of the torsion spring 21, the collection shell 20 rotates back to its original position, so that the collection shell 20 can pour the collected welding slag into one place, which is convenient for collection and cleaning.

[0033] Working principle: The operator moves the pipe body 9 between two clamping shells 7 using a handling device. By extending the telescopic end of the first hydraulic cylinder 6, the operator causes the clamping shells 7 to clamp the pipe body 9. The operator then controls the drive motor 2 to rotate, causing the output end of the drive motor 2 to rotate the first gear 3. The first gear 3 meshes with the gear ring 4, causing the gear ring 4 to rotate. The gear ring 4 then moves the support frame 5, causing the support frame 5 to rotate the pipe body 9 via the first hydraulic cylinder 6 and the clamping shells 7. The welding head 10 is controlled to perform circumferential welding at the contact point of the two pipe bodies 9. The extension of the telescopic end of the first hydraulic cylinder 6... The telescopic end of the first hydraulic cylinder 6 moves the movable cover 13 downward via the side block 12, allowing the movable cover 13 to enclose the toxic gases generated during welding. The toxic gases are then moved to the external purification equipment through the fixed pipe 15 and the hose 16. The welding slag generated during welding falls into the inner side of the collection shell 20. The drive motor 2 is operated by controlling the operation of the collection shell 2. The first gear 3, the gear ring 4, and the second gear 24 mesh to drive the trigger rod 25 to move. The trigger rod 25 drives the collection shell 20 to rotate via the side rod 26. Under the elastic support of the torsion spring 21, the collection shell 20 rotates back to its original position, causing the collected welding slag to fall into one place for collection and cleaning.

[0034] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An automatic pipe circumferential welding device, comprising a frame (1), a rotating mechanism being provided on the frame (1), and a welding head (10) being provided on the frame (1), characterized in that: An isolation mechanism is provided on the welding head (10). The isolation mechanism includes a second hydraulic cylinder (11) provided on the welding head (10). A side block (12) is fixedly installed on the telescopic end of the second hydraulic cylinder (11). A movable cover (13) is fixedly installed on the side block (12). A sealing strip (14) connected to the welding head (10) is connected to the movable cover (13). The frame (1) is provided with a collection mechanism, which includes two fixed rods (17) symmetrically fixedly installed on the frame (1). Each fixed rod (17) is fixedly installed with a fixed ring (18). Each fixed rod (17) is rotatably installed with a rotating block (19) at its end. A collection shell (20) is fixedly installed on both rotating blocks (19). A torsion spring (21) is connected between the fixed ring (18) and the rotating block (19). A triggering component is provided between the frame (1) and the collection shell (20).

2. The automatic pipe circumferential welding device according to claim 1, characterized in that: The rotating mechanism includes a drive motor (2) mounted on the frame (1), and a first gear (3) is fixedly mounted on the output end of the drive motor (2).

3. The automatic pipe circumferential welding device according to claim 2, characterized in that: The rotating mechanism also includes a support ring (8) rotatably mounted on the frame (1). Two support frames (5) are symmetrically fixedly mounted on the support ring (8), and a toothed ring (4) that meshes with the first gear (3) is fixedly mounted on both support frames (5).

4. The automatic pipe circumferential welding device according to claim 3, characterized in that: Each of the support frames (5) is provided with two first hydraulic cylinders (6), and each of the first hydraulic cylinders (6) has a clamp (7) fixedly installed on its telescopic end.

5. The automatic pipe circumferential welding device according to claim 4, characterized in that: The tube body (9) is held together between each pair of said clamps (7).

6. The automatic pipe circumferential welding device according to claim 1, characterized in that: A fixing tube (15) is fixedly installed on the movable cover (13), and a flexible tube (16) is connected to the fixing tube (15).

7. The automatic pipe circumferential welding device according to claim 3, characterized in that: The triggering assembly includes a circular shell (22) fixedly mounted on the frame (1), a circular block (23) rotatably mounted on the inner side of the circular shell (22), a second gear (24) meshing with the gear ring (4) fixedly mounted on the circular block (23), a triggering rod (25) fixedly mounted on the second gear (24), and a side rod (26) adapted to the triggering rod (25) fixedly mounted on the collecting shell (20).

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