A pipe rotary welding device

Abstract

This utility model discloses a pipe rotary welding device, including a welding machine. The side of the welding machine is fixedly connected to one end of a connecting pipe, and the other end of the connecting pipe is fixedly connected to a welding head. A transmission gear set is installed inside the welding head, meshing with a gear ring. The gear ring is fixedly connected to one end of a fixed plate. An installation plate is installed inside the fixed plate, and a welding tungsten electrode is fixedly mounted on the installation plate. The side of the installation plate is hinged to one end of an adjusting plate. This utility model uses a driving gear to rotate a driven gear, causing the gear ring to rotate the welding tungsten electrode, thus achieving axial welding of the pipe and improving welding efficiency. Simultaneously, by moving the adjusting plate until the fixing pin passes through the positioning hole and connects with the adjusting hole, the position of the adjusting plate changes, causing the installation plate to slide within the L-shaped fixed plate, thereby adjusting the height of the welding tungsten electrode to facilitate welding pipes of different diameters.

Description

Technical Field

[0001] This utility model relates to the field of pipeline welding technology, specifically a pipeline rotary welding device. Background Technology

[0002] A pipeline is a device used to transport various fluid media, commonly used in oil and gas, chemical, and other transportation fields. In practical applications, to extend the length of a pipeline, its two ends are welded together.

[0003] To improve pipeline welding efficiency, existing pipeline welding equipment has an internal drive mechanism that allows the welding tungsten-plated welding machine to rotate axially. However, its position is fixed and cannot be adjusted according to the different diameters of the pipes, which affects the actual use effect. Utility Model Content

[0004] The purpose of this invention is to provide a pipe rotary welding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pipe rotary welding device, comprising a welding machine, the side of which is fixedly connected to one end of a connecting pipe, the other end of which is fixedly connected to a welding head, a transmission gear set inside the welding head, the transmission gear set meshing with a gear ring, the gear ring being fixedly connected to one end of a fixed plate, an installation plate inside the fixed plate, a welding tungsten electrode fixedly mounted on the installation plate, a side of the installation plate hinged to one end of an adjustment plate, a clamping plate on the side of the welding head, a clamp on the side of the welding head, a placement groove on the side of the welding head, a fixed connection between the side of the welding head and a housing, a pull plate inside the housing, and a fixed connection between the pull plate and a clamping plate.

[0006] Preferably, a drive motor is fixedly installed inside the welding head, and a drive gear is provided at the output end of the drive motor. Both the drive gear and the driven gear are bevel gears, and the drive gear and the driven gear are meshed together.

[0007] Preferably, the fixing plate is an L-shaped plate, and a rectangular groove is formed on the side of the fixing plate, through which the fixing plate is slidably connected to the mounting plate.

[0008] Preferably, the gear ring has several evenly distributed adjustment holes on its side, the adjustment plate has a mating hole at one end, and the adjustment plate is connected and fixed to the adjustment holes by a fixing pin.

[0009] Preferably, the welding head is engaged with the outer side of the clamping plate via a placement groove, the inner wall of the placement groove is fixedly connected to the insertion rod, and a circular through hole is provided on the side of the clamping plate, through which the clamping plate is engaged with the insertion rod.

[0010] Preferably, the box body is slidably fitted with a pull plate, and the pull plate is fixedly connected to one end of a spring.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a drive motor to make the drive gear rotate, which in turn drives the driven gear to rotate. The transmission gear set then drives the gear ring to rotate the welding tungsten grade, thus achieving axial welding of the pipe and improving welding efficiency. At the same time, by moving the adjustment plate until the fixing pin passes through the positioning hole of the adjustment plate and connects with the adjustment hole, the position of the adjustment plate changes, causing the mounting plate to slide within the L-shaped fixing plate, thereby adjusting the height of the welding tungsten grade to facilitate welding of pipes with different diameters.

[0013] 2. This utility model also clamps and fixes the outside of the pipe by setting up clamping plates and clamps to prevent the welding head from shifting during the welding process. By changing different clamping plates and clamps, pipes with different hole sizes can be clamped and welded. When changing clamping plates, the pull plate is moved to move the clamping plate, and then the clamping plate can be taken out from the placement groove. The operation is convenient and expands the welding application range of the whole device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the internal structure of the welding head of this utility model;

[0016] Figure 3 This is a schematic diagram of the gear ring and the welded tungsten grade structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the clamping plate structure of this utility model.

[0018] In the diagram: 1. Welding machine; 2. Connecting pipe; 3. Welding head; 4. Drive motor; 5. Drive gear; 6. Driven gear; 7. Transmission gear set; 8. Gear ring; 9. Fixing plate; 10. Mounting plate; 11. Welding tungsten grade; 12. Adjusting plate; 13. Adjusting hole; 14. Clamping plate; 15. Fixture; 16. Placement slot; 17. Insert rod; 18. Box body; 19. Pull plate; 20. Spring; 21. Clamping plate. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a pipe rotary welding device, including a welding machine 1. The side of the welding machine 1 is fixedly connected to one end of a connecting pipe 2, and the other end of the connecting pipe 2 is fixedly connected to a welding head 3. A transmission gear set 7 is provided inside the welding head 3. The transmission gear set 7 consists of two symmetrically distributed gears. The gears are rotatably connected to the inner wall of the transmission gear set 7 through a connecting shaft. The gear in the middle of the transmission gear set 7 is fixedly connected to the driven gear 6 through a connecting shaft. The transmission gear set 7 meshes with a gear ring 8.

[0021] The gear ring 8 is fixedly connected to one end of the fixing plate 9. An installation plate 10 is installed inside the fixing plate 9, and a welding tungsten electrode 11 is fixedly installed on the installation plate 10. The side of the installation plate 10 is hinged to one end of the adjusting plate 12. A clamping plate 14 is installed on the side of the welding head 3, and a clamp 15 is also installed on the side of the welding head 3. A buckle is installed on the outside of the welding head 3, and the welding head 3 is engaged with the clamp 15 via the buckle. A clamping plate 14 is also fixedly installed on the side of the clamp 15. The two clamping plates 14 fit together to form a semi-circle, and a circular through hole is provided inside. A placement groove 16 is opened on the side of the welding head 3. The side of the welding head 3 is fixedly connected to the box body 18. A pull plate 19 is installed inside the box body 18, and the pull plate 19 is fixedly connected to the clamping plate 21.

[0022] The welding head 3 is internally connected and fixed to the drive motor 4 by bolts. The output end of the drive motor 4 is connected to the drive gear 5. Both the drive gear 5 and the driven gear 6 are bevel gears, and the drive gear 5 and the driven gear 6 are meshed together. The drive motor 4 causes the drive gear 5 to drive the driven gear 6 to rotate, which in turn causes the gear ring 8 to rotate through the transmission gear set 7, thereby driving the welding tungsten electrode 11 to rotate for welding.

[0023] The fixing plate 9 is an L-shaped plate with a rectangular groove on its side. The fixing plate 9 is slidably connected to the mounting plate 10 through the rectangular groove. The sliding of the mounting plate 10 on the fixing plate 9 is the basis for the vertical movement of the welding tungsten electrode 11.

[0024] An adjustment groove is provided on the side of the gear ring 8, and several evenly distributed adjustment holes 13 are provided in the adjustment groove on the side of the gear ring 8. A mating hole is provided at one end of the adjustment plate 12. The adjustment plate 12 is connected and fixed to the adjustment hole 13 by a fixing pin. The fixing pin is threaded into the adjustment hole 13. By passing the fixing pin through the adjustment plate 12 and connecting it to the adjustment hole 13, the adjustment plate 12 is fixed to the side of the gear ring 8. At the same time, by fixing the adjustment plate 12 to the adjustment holes 13 at different positions, the mounting plate 10 can be driven to slide inside the fixing plate 9, thereby realizing the adjustment of the welding height of the tungsten grade 11.

[0025] The welding head 3 is engaged with the outer side of the clamping plate 14 via the placement groove 16. The side of the clamping plate 14 has a semi-circular arc groove. Different clamping plates 14 have semi-circular arc grooves of different radii to facilitate fitting with pipes of different diameters.

[0026] The inner wall of the placement slot 16 is fixedly connected to the insertion rod 17. A circular through hole is opened on the side of the clamping plate 14, and the clamping plate 14 is inserted and engaged with the insertion rod 17 through the circular through hole. The inside of the box body 18 is slidably engaged with the pull plate 19, and the pull plate 19 is fixedly connected to one end of the spring 20.

[0027] Working principle: In use, clamp 14 is placed against the outside of the pipe, and then clamp 15 is rotated to also be placed against the outside of the pipe. Clamp 15 is connected and fixed by the buckle on the outside of the welding head 3. The clamp 14 and clamp 15 are used to fix the welding head 3 to the outside of the pipe. At the same time, the gap to be welded is placed between clamps 15. Welding is performed on the gap by welding tungsten electrode 11. Simultaneously, the drive motor 4 drives the drive gear 5 to rotate, which in turn drives the driven gear 6 to rotate. The rotation of the driven gear 6 causes the transmission gear set 7 to drive the gear ring 8 to rotate, which in turn drives the welding tungsten electrode 11 to rotate for welding.

[0028] When welding pipes of different diameters is required, the movable pull plate 19 moves the clamping plate 21, allowing the clamping plate 14 to be removed from the placement groove 16. Clamping plates 14 with different arc-shaped grooves are then placed inside the placement groove 16. The spring force of the spring 20 pushes the clamping plate 21 to move, thus fixing the clamping plate 14 inside the placement groove 16 for easy clamping of different pipes.

[0029] By removing the fixing pin at one end of the adjusting plate 12, the adjusting plate 12 is rotated until it is fixed inside the adjusting holes 13 at different positions. This causes the adjusting plate 12 to drive the mounting plate 10 to move up and down inside the fixing plate 9, thereby adjusting the height of the welding tungsten grade 11 to facilitate the welding of pipes with different diameters.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.

[0031] 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 pipe rotary welding apparatus, comprising a welding machine (1), characterized in that: The welding machine (1) is fixedly connected to one end of the connecting pipe (2) on its side, and the other end of the connecting pipe (2) is fixedly connected to the welding head (3). The welding head (3) is equipped with a transmission gear set (7), which meshes with a gear ring (8). The gear ring (8) is fixedly connected to one end of a fixing plate (9). The fixing plate (9) is equipped with an installation plate (10), and a welding tungsten electrode (11) is fixedly installed on the installation plate (10). The side of the installation plate (10) is hinged to one end of an adjusting plate (12). The welding head (3) is equipped with a clamping plate (14) on its side, and a clamp (15) is provided on its side. The welding head (3) has a placement groove (16) on its side. The side of the welding head (3) is fixedly connected to a box (18). The box (18) is equipped with a pull plate (19), which is fixedly connected to a clamping plate (21).

2. The pipe rotary welding device according to claim 1, characterized in that: The welding head (3) is fixedly installed with a drive motor (4). The output end of the drive motor (4) is provided with a drive gear (5). Both the drive gear (5) and the driven gear (6) are bevel gears. The drive gear (5) and the driven gear (6) are meshed and connected.

3. The pipe rotary welding device according to claim 1, characterized in that: The fixing plate (9) is an L-shaped plate, and a rectangular groove is opened on the side of the fixing plate (9). The fixing plate (9) is slidably connected to the mounting plate (10) through the rectangular groove.

4. The pipe rotary welding device according to claim 1, characterized in that: The gear ring (8) has several evenly distributed adjustment holes (13) on its side, and the adjustment plate (12) has a mating hole at one end. The adjustment plate (12) is connected and fixed to the adjustment holes (13) by a fixing pin.

5. A pipe rotary welding device according to claim 1, characterized in that: The welding head (3) is engaged with the outer side of the clamping plate (14) through the placement groove (16). The inner wall of the placement groove (16) is fixedly connected with the insertion rod (17). A circular through hole is opened on the side of the clamping plate (14). The clamping plate (14) is engaged with the insertion rod (17) through the circular through hole.

6. The pipe rotary welding device according to claim 1, characterized in that: The box body (18) is slidably engaged with the pull plate (19), and the pull plate (19) is fixedly connected to one end of the spring (20).

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