A welding device for thermal pipeline construction

Abstract

The present invention provides a thermal pipeline construction welding device, which relates to the field of welding processing technology, including a welding device body, a bent pipeline and a straight pipeline. The welding device body includes a driving mechanism, a docking locking mechanism, a switching assembly and a welding assembly. The ends of the bent pipeline and the straight pipeline are docked and fitted. The driving mechanism includes a motor and a front end bracket. The shell portion of the motor is welded to the surface of the front end bracket. The output end of the motor is inserted with a driving shaft, and the surface of the driving shaft is welded with a rotating arm. The present invention can control the welding head and the bent pipeline to rotate half a circle respectively for the welding of the bent pipeline portion, so that the entire welding process will not be blocked by the ground, the flexibility is higher, and the support mechanism makes the accuracy higher. During the rotation of the pipeline, a pressure will always be applied to ensure that the welded area will not shake in the horizontal direction and cause disconnection.

Description

Technical Field

[0001] The invention relates to the technical field of welding processing, in particular to a thermal pipeline construction welding device. Background Art

[0002] Thermal pipeline construction is a complex process involving multiple links and technologies, mainly including pre-construction preparation, main process construction methods, welding technology and other aspects. The requirements for welding performance during thermal pipeline welding include multiple aspects, mainly involving sealing, strength and stability. Preparation before welding includes pipeline cutting, processing, and selecting appropriate welding processes and equipment.

[0003] In the prior art, the welding device used in the construction of thermal pipelines connects two pipelines and then manually welds along the intersection of the pipelines. This solution is inefficient and there is a lot of uncertainty in manual control. Alternatively, the welding head is controlled by a driving device to automatically rotate around the weld area for welding. When this solution is applied to the construction site, since the pipeline has been pressed on the ground, the bottom of the pipeline cannot be directly contacted for welding, and the pipeline needs to be driven to rotate. For the pipeline at the bend, the rotation will cause the bent pipeline to be blocked by the ground and cannot rotate smoothly. Therefore, the conventional welding device has a lot of obstacles, lacks flexibility, and is prone to omissions in the welding process. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a thermal pipeline construction welding device to solve the problems raised in the above-mentioned background technology. The present invention can control the welding head and the bent pipeline to rotate half a circle respectively for the welding of the bent pipeline part. Therefore, the entire welding process will not be blocked by the ground, and it has higher flexibility and precision. During the rotation of the pipeline, a pressure will always be applied to ensure that the welded area will not shake in the horizontal direction and cause disconnection.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a thermal pipeline construction welding device, comprising a welding device body, a bent pipeline and a straight pipeline, the welding device body comprising a driving mechanism, a docking locking mechanism, a switching assembly and a welding assembly, the ends of the bent pipeline and the straight pipeline are docked and fitted, the driving mechanism comprises a motor and a front end bracket, the shell portion of the motor is welded to the surface of the front end bracket, a driving shaft is inserted into the output end of the motor, a rotating arm is welded to the surface of the driving shaft, the docking locking mechanism is integrally formed at the end of the rotating arm, and an arc-shaped card groove is integrally formed on the surface of the docking locking mechanism, the arc-shaped card groove is used to be stuck on the surface of the bent pipeline, one end of the docking locking mechanism is interspersed with a switching assembly, the other end of the switching assembly passes through the surface of the welding assembly, the surface of the straight pipeline is sleeved with a supporting mechanism, the end of the welding assembly is integrally formed with a slider, and the slider is embedded in the surface of the supporting mechanism.

[0006] Furthermore, the docking locking mechanism includes a docking base, an end plate and a guide plate, a guide hole is opened inside the guide plate, a telescopic plate is inserted inside the end plate, and the end plate and guide plate are respectively integrated at both ends of the docking base.

[0007] Furthermore, the arc-shaped slot is fixed at the middle position of the inner side of the docking base, and the bottom of the arc-shaped slot is a semicircular structure, and the inner wall diameter of the arc-shaped slot is larger than the surface diameter of the bent pipe, the bottom surface of the telescopic plate is higher than the surface of the guide plate, and the rotating arm is fixed to the side of the end plate as a whole.

[0008] Furthermore, the switching assembly includes a telescopic rod and a docking plate, the surface of the telescopic rod is integrally formed with a convex ring, and a pull rod is welded to the bottom of the convex ring, the surface of the docking plate is sleeved with a spring, one end of the spring is welded to the surface of the convex ring, and the number of the telescopic rod and the guide hole are both two.

[0009] Furthermore, the telescopic rod passes through the inside of the guide hole, the docking plate is welded to the end of the telescopic rod, and a bottom docking hole is opened on the surface of the docking plate, and the other end of the spring rests on the end of the guide plate.

[0010] Furthermore, a top-layer docking hole is opened on the surface of the telescopic plate, and a docking pin is inserted into the inside of the top-layer docking hole. One end of the telescopic plate is integrally formed with a limited position convex strip, and the docking pin passes through the inside of the top-layer docking hole and the bottom-layer docking hole in turn.

[0011] Furthermore, the telescopic rod cooperates with the arc-shaped clamping groove to clamp the bent pipe, and the surface of the docking plate fits with the bottom surface of the telescopic plate.

[0012] Furthermore, the welding assembly includes a welding head and a linkage column, a linkage hole is opened on the surface of the linkage column, the welding head is fixed to the end of the linkage column, a cable is plugged into the rear end of the linkage column, and a transmission block is installed on the side of the welding head.

[0013] Furthermore, an extension plate is integrally formed at the end of the transmission block, a slider is integrally formed on the surface of the extension plate, the support mechanism includes a rear end bracket and a plug-in sleeve, the plug-in sleeve is welded to the surface of the rear end bracket, and an arc track is integrally formed at the end of the plug-in sleeve.

[0014] Furthermore, a slide groove is provided on one side of the arc track, the slider is embedded in the slide groove, and the cross-sections of the slider and the slide groove are both "T"-shaped structures.

[0015] Beneficial effects of the present invention:

[0016] 1. The thermal pipeline construction welding device can control the welding head and the bent pipe to rotate half a circle respectively for the welding of the bent pipe part. Therefore, the welding head is first controlled to complete the welding of the top half circle area of ​​the joint, and then only the bent pipe is controlled to rotate the remaining half circle. At this time, the welding head remains fixed, so the welding process of the entire joint can be completed. During the entire welding process, the bent pipe and the welding head will not be blocked by the ground, and the entire welding process is more flexible.

[0017] 2. Whether controlling the rotation of the welding head or the rotation of the bending pipe, the thermal pipeline construction welding device always provides traction and limiting support to the welding component part through the supporting mechanism, thereby ensuring that the welding head is always in the same vertical plane with the joint area during the entire welding process, so the welding position will not change horizontally, making the weld more accurate.

[0018] 3. Before controlling the rotation of the bent pipe, the thermal pipeline construction welding device will clamp the bent pipe through the switching component and the docking locking mechanism, and the process can also control the bent pipe to lean against the straight pipe with the help of the tension applied by the spring. Therefore, the second half of the welding process will always apply a pressure to ensure that the bent pipe is against the end of the straight pipe, so that the welded area will not shake in the horizontal direction and cause disconnection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of a thermal pipeline construction welding device and a welding assembly in a docking state according to the present invention;

[0020] Figure 2 It is a structural diagram of a thermal pipeline construction welding device of the present invention in a state of docking with a bent pipeline;

[0021] Figure 3 It is a structural schematic diagram of the driving mechanism part of the present invention;

[0022] Figure 4 It is a structural schematic diagram of the docking locking mechanism part of the present invention;

[0023] Figure 5 It is a structural schematic diagram of the switching component part of the present invention;

[0024] Figure 6 A schematic diagram of a welding assembly portion of the present invention;

[0025] Figure 7 It is a structural diagram of the supporting mechanism part of the present invention;

[0026] In the figure: 1. straight pipe; 2. bent pipe; 3. driving mechanism; 4. docking locking mechanism; 5. switching assembly; 6. welding assembly; 7. supporting mechanism; 8. motor; 9. front end bracket; 10. driving shaft; 11. rotating arm; 12. docking base; 13. end plate; 14. arc-shaped slot; 15. guide plate; 16. guide hole; 17. telescopic plate; 18. limiting convex strip; 19. docking pin; 20. telescopic rod; 21. pull rod; 22. convex ring; 23. spring; 24. docking plate; 25. bottom docking hole; 26. top docking hole; 27. linkage column; 28. linkage hole; 29. ​​welding head; 30. transmission block; 31. extension plate; 32. slider; 33. rear end bracket; 34. plug-in sleeve; 35. arc track; 36. slide groove; 37. cable. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0028] See also Figures 1 to 7The present invention provides the following technical solutions: A thermal pipeline construction welding device, comprising a welding device body, a bent pipe 2 and a straight pipe 1, the welding device body comprising a driving mechanism 3, a docking locking mechanism 4, a switching assembly 5 and a welding assembly 6, the ends of the bent pipe 2 and the straight pipe 1 are docked and fitted, the driving mechanism 3 comprises a motor 8 and a front end bracket 9, the housing portion of the motor 8 is welded to the surface of the front end bracket 9, a driving shaft 10 is inserted at the output end of the motor 8, a rotating arm 11 is welded to the surface of the driving shaft 10, the docking locking mechanism 4 is integrated An arc-shaped card slot 14 is formed at the end of the rotating arm 11, and the surface of the docking locking mechanism 4 is integrally formed with an arc-shaped card slot 14, and the arc-shaped card slot 14 is used to be stuck on the surface of the bent pipe 2. A switching component 5 is inserted into one end of the docking locking mechanism 4, and the other end of the switching component 5 passes through the surface of the welding component 6. The surface of the straight pipe 1 is sleeved with a supporting mechanism 7, and a slider 32 is integrally formed at the end of the welding component 6. The slider 32 is embedded in the surface of the supporting mechanism 7. The thermal pipeline construction welding device is specially used for welding the joint between the bent pipe 2 and the straight pipe 1.

[0029] When the present invention is used, the straight pipe 1 is first passed through the inside of the support mechanism 7, and the end of the bent pipe 2 is docked with the straight pipe 1. In the initial state, the driving mechanism 3 controls the rotating arm 11 to drive the docking locking mechanism 4 to rotate to the opposite side of the bent pipe 2, and docks with the welding assembly 6 through the docking locking mechanism 4. The state at this time is as follows: Figure 1 As shown, the driving mechanism 3 can then be started, and the driving mechanism 3 can be used to drive the welding assembly 6 to rotate along the gap between the bent pipe 2 and the straight pipe 1 to achieve welding processing on the upper half of the gap until the welding assembly 6 is rotated to the ground on the other side. At this time, the docking state between the switching assembly 5 and the welding assembly 6 can be released, and the docking locking mechanism 4 and the switching assembly 5 can be reinserted until the switching assembly 5 is bypassed from the bottom of the bent pipe 2, and the docking locking mechanism 4 is used to clamp the surface of the bent pipe 2. At this time, the driving mechanism 3 is restarted to control the bent pipe 2 to rotate around the joint, and the welding processing of the other half of the joint area can be completed.

[0030] In this embodiment, the docking locking mechanism 4 includes a docking base 12, an end plate 13 and a guide plate 15, a guide hole 16 is provided inside the guide plate 15, a telescopic plate 17 is inserted inside the end plate 13, and the end plate 13 and the guide plate 15 are respectively integrated at both ends of the docking base 12. The arc-shaped card slot 14 is fixed at the middle position of the inner side of the docking base 12, and the bottom of the arc-shaped card slot 14 is a semicircular structure, and the inner wall diameter of the arc-shaped card slot 14 is larger than the surface diameter of the bent pipe 2, the bottom surface of the telescopic plate 17 is higher than the surface of the guide plate 15, and the rotating arm 11 is fixed to the side of the end plate 13 as a whole. For the welding of the bent pipe 2, the welding head 29 and the bent pipe 2 can be controlled to rotate half a circle respectively. Therefore, the welding head 29 is controlled to complete the welding of the top half circle area at the joint, and then only the bent pipe 2 is controlled to rotate the remaining half circle. At this time, the welding head 29 remains fixed, so the welding process of the entire joint can be completed. During the entire welding process, the bent pipe 2 and the welding head 29 will not be blocked by the ground, and the entire welding process is more flexible.

[0031] Specifically, when in use, first connect the switching component 5 with the welding machine component. At this time, the end of the switching component 5 will not dock with the telescopic plate 17, and the arc-shaped slot 14 is also on the opposite side of the bent pipe 2 and will not press on the surface of the bent pipe 2. Therefore, in this state, only the welding component 6 can be controlled to rotate to realize the welding process of the upper half of the joint between the bent pipe 2 and the straight pipe 1.

[0032] In this embodiment, the switching assembly 5 includes a telescopic rod 20 and a docking plate 24. A convex ring 22 is integrally formed on the surface of the telescopic rod 20, and a pull rod 21 is welded to the bottom of the convex ring 22. A spring 23 is sleeved on the surface of the docking plate 24, and one end of the spring 23 is welded to the surface of the convex ring 22. The number of the telescopic rod 20 and the number of the guide hole 16 are both two. The telescopic rod 20 passes through the inside of the guide hole 16. The docking plate 24 is welded to the end of the telescopic rod 20, and a bottom docking hole 25 is opened on the surface of the docking plate 24. The other end of the spring 23 abuts against the end of the guide plate 15. A top docking hole 26 is opened on the surface of the telescopic plate 17, and a docking pin 19 is inserted into the inside of the top docking hole 26. A limiting convex strip 18 is integrally formed on one end of the telescopic plate 17, and the docking pin 19 passes through the inside of the top docking hole 26 and the bottom docking hole 25 in sequence. The telescopic rod 20 cooperates with the arc-shaped slot 14 to clamp the bent pipe 2, and the surface of the docking plate 24 fits with the bottom surface of the telescopic plate 17. Before controlling the rotation of the bent pipe 2, the bent pipe 2 is clamped by the switching component 5 in cooperation with the docking locking mechanism 4, and the process can also control the bent pipe 2 to lean against the straight pipe 1 with the help of the tension applied by the spring 23. Therefore, a pressure is always applied in the second half of the welding process to ensure that the bent pipe 2 is against the end of the straight pipe 1, so that the welded area will not shake in the horizontal direction and cause disconnection.

[0033] Specifically, after the upper half of the joint between the bent pipe 2 and the straight pipe 1 is welded through the above process, the welding assembly 6 and the bent pipe 2 are on the same side. In this state, the pull rod 21 is pulled to push the telescopic rod 20 toward the position of the docking locking assembly until the telescopic rod 20 is pulled out of the linkage hole 28 inside the linkage column 27, and the docking plate 24 at the other end is moved to the bottom of the telescopic plate 17, and the docking pin 19 is used to pass through the docking holes of the two layers in sequence, so that the docking plate 24 and the telescopic plate 17 can be fixed as a whole. At this time, since the guide rod is bypassed from the bottom of the bent pipe 2, it can cooperate with the arc groove 14 to cover the surface of the bent pipe 2. After loosening the pull rod 21, the spring 23 will contract and pull the docking plate 24 toward the right end, so the docking plate 24 will also pull the docking pin 19 to move. At this time, the spring 23 and the docking pin 19 can be used to apply a thrust toward the right end to the bent pipe 2. This thrust can ensure that the bent pipe 2 will not shake in the horizontal direction during the subsequent rotation process.

[0034] In this embodiment, the welding assembly 6 includes a welding head 29 and a linkage column 27. The surface of the linkage column 27 is provided with a linkage hole 28. The welding head 29 is fixed at the end of the linkage column 27. The rear end of the linkage column 27 is plugged with a cable 37. A transmission block 30 is installed on the side of the welding head 29. An extension plate 31 is integrally formed at the end of the transmission block 30. A slider 32 is integrally formed on the surface of the extension plate 31. The support mechanism 7 includes a rear bracket 33 and a plug-in sleeve 34. The plug-in sleeve 34 is welded to the surface of the rear bracket 33. An arc track 35 is integrally formed at the end of the plug-in sleeve 34. A slide groove 36 is provided on one side of the arc track 35. The slider 32 is embedded in the interior of the slide groove 36. The cross-sections of the slider 32 and the slide groove 36 are both "T"-shaped structures. Whether controlling the rotation of the welding head 29 or the rotation of the bending pipe 2, the support mechanism 7 always provides traction and limiting support to the welding assembly 6, thereby ensuring that the welding head 29 is always in the same vertical plane with the joint area during the entire welding process, so the welding position will not change horizontally, making the weld more precise.

[0035] Specifically, in the process of driving the welding assembly 6 to rotate through the driving mechanism 3, the welding assembly 6 will be embedded in the interior of the slot through the transmission block 30, the extension plate 31 and the slider 32 on one side, so that the entire welding assembly 6 will rotate along the arc track 35, and the arc track 35 is kept in a fixed state by the supporting mechanism 7. Therefore, it is only necessary to align the welding head 29 with the seam position in the initial state to ensure that the welding head 29 always rotates along the seam during the subsequent welding process. When the bending pipe 2 is subsequently controlled to rotate, the welding head 29 is fixed at this time. By driving the straight pipe 1 to rotate through the bending pipe 2, the remaining seam positions can be rotated from the surface of the welding head 29 in turn, thereby realizing the welding process of the remaining seam positions.

[0036] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A thermal pipeline construction welding device, comprising a welding device body, a bent pipeline (2) and a straight pipeline (1), characterized in that: The welding device body comprises a driving mechanism (3), a docking locking mechanism (4), a switching assembly (5) and a welding assembly (6); the ends of the bent pipe (2) and the straight pipe (1) are docked and fitted; the driving mechanism (3) comprises a motor (8) and a front end bracket (9); the housing portion of the motor (8) is welded to the surface of the front end bracket (9); a driving shaft (10) is inserted into the output end of the motor (8); a rotating arm (11) is welded to the surface of the driving shaft (10); the docking locking mechanism (4) is integrally formed at the end of the rotating arm (11); and an arc-shaped card slot (14) is integrally formed on the surface of the docking locking mechanism (4); the arc-shaped card slot (14) is used to be clamped on the surface of the bent pipe (2); A switching component (5) is inserted into one end of the docking locking mechanism (4), and the other end of the switching component (5) passes through the surface of the welding component (6). The surface of the straight pipe (1) is sleeved with a supporting mechanism (7). The end of the welding component (6) is integrally formed with a slider (32), and the slider (32) is embedded in the surface of the supporting mechanism (7). The docking locking mechanism (4) comprises a docking base (12), an end plate (13) and a guide plate (15). A guide hole (16) is provided inside the guide plate (15). A telescopic plate (17) is inserted into the inside of the end plate (13). The end plate (13) and the guide plate (15) are respectively integrally formed at the two ends of the docking base (12). The switching component (5) includes a The invention comprises a telescopic rod (20) and a docking plate (24), wherein a convex ring (22) is integrally formed on the surface of the telescopic rod (20), and a pull rod (21) is welded to the bottom of the convex ring (22), a spring (23) is sleeved on the surface of the docking plate (24), and one end of the spring (23) is welded to the surface of the convex ring (22), the number of the telescopic rod (20) and the number of the guide hole (16) are both two, the telescopic rod (20) passes through the inside of the guide hole (16), the docking plate (24) is welded to the end of the telescopic rod (20), and a bottom docking hole (25) is opened on the surface of the docking plate (24), the other end of the spring (23) is pressed against the end of the guide plate (15), and a top docking hole is opened on the surface of the telescopic plate (17). (26), and a docking pin (19) is inserted into the top docking hole (26), one end of the telescopic plate (17) is integrally formed with a limiting convex strip (18), the docking pin (19) passes through the top docking hole (26) and the bottom docking hole (25) in sequence, the telescopic rod (20) cooperates with the arc-shaped slot (14) to clamp the bent pipe (2), the surface of the docking plate (24) is in contact with the bottom surface of the telescopic plate (17), the welding assembly (6) comprises a welding head (29) and a linkage column (27), the surface of the linkage column (27) is provided with a linkage hole (28), the welding head (29) is fixed to the end of the linkage column (27), and the rear end of the linkage column (27) is plugged with a cable (37),A transmission block (30) is installed on the side of the welding head (29), an extension plate (31) is integrally formed at the end of the transmission block (30), a slider (32) is integrally formed on the surface of the extension plate (31), and the support mechanism (7) includes a rear end bracket (33) and a plug-in sleeve (34), the plug-in sleeve (34) is welded to the surface of the rear end bracket (33), and an arc track (35) is integrally formed at the end of the plug-in sleeve (34).

2. A thermal pipeline construction welding device according to claim 1, characterized in that: The arc-shaped slot (14) is fixed at the middle position of the inner side of the docking base (12), and the bottom of the arc-shaped slot (14) is a semicircular structure, and the inner wall diameter of the arc-shaped slot (14) is larger than the surface diameter of the bent pipe (2), the bottom surface of the telescopic plate (17) is higher than the surface of the guide plate (15), and the rotating arm (11) and the side edge of the end plate (13) are fixed as a whole.

3. A thermal pipeline construction welding device according to claim 1, characterized in that: A slide groove (36) is provided on one side of the arc track (35), the slider (32) is embedded in the slide groove (36), and the cross sections of the slider (32) and the slide groove (36) are both T-shaped structures.

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