Electric power pipeline welding equipment

Abstract

The invention belongs to the technical field of welding equipment, and particularly relates to power pipeline welding equipment which comprises a workbench, bent pipe placing seats are symmetrically and rotatably mounted on the inner wall of the top of the workbench, connecting shafts are fixedly mounted at the bottoms of the bent pipe placing seats, and the outer walls of the connecting shafts are rotatably connected with the inner wall of the workbench; an adjusting gear is fixedly installed on the outer wall of the connecting shaft, and an automatic telescopic rod is arranged below the workbench. By means of the bent pipe placing base, the adjusting gear, the bent pipe fixing assembly and other structures, when a bent pipe and a straight pipe are welded, the bent pipe placing base rotates through cooperation of a toothed plate and the adjusting gear, then the angle of the bent pipe fixing assembly is adjusted, and the device is suitable for bent pipes of different angles; the bent pipe is fixed through the bent pipe fixing assembly, the effect of fixing the bent pipes at different angles is achieved, and the welding precision of the bent pipes and the straight pipes during welding is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of welding equipment, in particular to a welding equipment for electric power pipelines. Background Art

[0002] The power pipe is a product that is hot-dip-coated with PE (modified polyethylene) or coated inside and outside with epoxy resin. It has excellent corrosion resistance. At the same time, the coating itself has good electrical insulation, will not cause electrical corrosion, has low water absorption, high mechanical strength, and a small friction coefficient, and can achieve the purpose of long-term use. The power pipeline needs to be welded using welding equipment during production.

[0003] A Chinese patent with announcement number CN116372412B discloses an electric pipeline welding device. When the adjusting rod drives the slider to move toward one end close to the push rod, the slider contacts the push rod and pushes the push rod and the piston plate to move toward one end close to the liquid inlet pipe. The reset spring expands, and at the same time, the internal air pressure of the box body close to one end of the liquid inlet pipe is negative pressure, and the one-way liquid inlet valve is closed, and the one-way liquid discharge valve is open, so that the water source inside the box body cools the electric pipeline through the liquid discharge pipe and the nozzle.

[0004] In the current existing technology, due to the complex use environment of power pipelines, bent pipes are often required to be used together with straight pipes, so the straight pipes and bent pipes need to be welded together. The existing welding equipment can only fix the straight pipes when welding power pipelines. There is no positioning tooling for the bent pipes, and the bent pipes cannot be fixed, which will affect the welding accuracy between the bent pipes and the straight pipes.

[0005] To this end, the present invention provides a power pipeline welding device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: an electric power pipeline welding equipment described in the present invention comprises a workbench, a bend pipe placement seat is symmetrically rotatably installed on the inner wall of the top of the workbench, a connecting shaft is fixedly installed on the bottom of the bend pipe placement seat, the outer wall of the connecting shaft is rotatably connected to the inner wall of the workbench, an adjusting gear is fixedly installed on the outer wall of the connecting shaft, an automatic telescopic rod is arranged under the workbench, a receiving plate is fixedly installed on one end of the automatic telescopic rod, a tooth plate is fixedly installed on the top of the receiving plate, the teeth of the two adjusting gears are meshed with the teeth of the tooth plate, a slider is fixedly installed on the top of the tooth plate, a slide groove is provided at the bottom of the workbench, the inner wall of the slide groove is slidably connected to the outer wall of the slider, welding guns are symmetrically arranged on the top of the workbench, and the inner walls of the two bend pipe placement seats are provided with bend pipe fixing components.

[0008] Preferably, the bent pipe fixing assembly includes a slide plate symmetrically and slidably mounted on the inner wall of the bent pipe placement seat, a bent pipe clamping plate is fixedly mounted on the top of the slide plate, a bidirectional screw is rotatably mounted on the inner wall of the bent pipe placement seat, the inner walls of the two slide plates are threadedly connected to the outer wall of the bidirectional screw, and a tightening knob is fixedly mounted on one end of the bidirectional screw and located on the outside of the bent pipe placement seat.

[0009] Preferably, a rotating seat is fixedly installed on the end of the connecting shaft away from the bent pipe placement seat, a connecting plate is fixedly installed on the outer wall of the rotating seat, a rotating column is fixedly installed on the inner wall of the end of the connecting plate away from the rotating seat, a straight pipe placement seat is fixedly installed on the top of the rotating column, and a straight pipe fixing assembly is arranged on the top of the straight pipe placement seat.

[0010] Preferably, the straight tube fixing assembly includes a truncated table fixedly mounted on the top of the straight tube placement seat, a cylinder is rotatably mounted on the inner wall of the truncated table, a straight tube positioning frame is fixedly mounted on the outer wall of the cylinder, a one-way screw is threadedly mounted on the inner wall of the straight tube positioning frame, a straight tube clamping plate is rotatably mounted on one end of the one-way screw, and a fastening ring is fixedly mounted on the other end of the one-way screw.

[0011] Preferably, a welding positioning plate is slidably mounted on the inner wall of the straight tube placement seat, and a rotating assembly is provided at one end of two welding positioning plates close to each other.

[0012] Preferably, the rotating assembly includes a positioning ring fixed at one end of the welding positioning plate, a rotating ring is rotatably installed on the inner wall of the positioning ring, a gear ring is fixedly installed on the outer wall of the rotating ring, a driving motor is arranged below the welding positioning plate, a driving wheel is fixedly installed on the output shaft of the driving motor, a positioning block is symmetrically fixedly installed on the outer wall of the positioning ring, a positioning shaft is rotatably installed on the inner wall of the positioning block, a driven wheel and a rotating gear are respectively fixedly installed on both ends of the positioning shaft, a transmission belt is installed between the two driven wheels and the driving wheel, the teeth of the two rotating gears are meshed with the teeth of the gear ring, and the two welding guns are respectively fixedly installed on the outer wall of the rotating ring.

[0013] Preferably, a pressure block and a force-bearing block are slidably mounted on the inner wall of the straight tube placement seat, an elastic member is symmetrically fixedly mounted between the pressure block and the force-bearing block, and the bottom of the pressure block is in conflict with the top of the welding positioning plate.

[0014] Preferably, arc grooves are symmetrically opened on the top of the workbench, the outer walls of the two rotating columns are slidably connected to the inner walls of the two arc grooves respectively, and fan-shaped grooves are symmetrically opened on the top of the workbench, and the two rotating components are respectively located on the inner sides of the two fan-shaped grooves.

[0015] Preferably, a bent pipe body is installed between the bent pipe placement seat and the bent pipe clamping plate, and a straight pipe body is installed between the two straight pipe placement seats and the two straight pipe clamping plates respectively, both ends of the bent pipe body are aligned with one end of the two straight pipe bodies respectively, and the two straight pipe bodies are respectively in conflict with two force blocks.

[0016] Preferably, a mounting plate is fixedly installed on the bottom of the workbench, one end of the automatic telescopic rod away from the supporting plate is fixedly connected to the mounting plate, a vertical plate is fixedly installed on the bottom of the welding positioning plate, a mounting seat is fixedly installed on the bottom of the vertical plate, the drive motor is fixedly installed on the inner side of the mounting seat, and a plurality of supporting legs are fixedly installed on the bottom of the workbench.

[0017] The beneficial effects of the present invention are as follows: 1. The electric power pipeline welding equipment described in the present invention has structures such as a bend pipe placement seat, an adjusting gear and a bend pipe fixing assembly. When welding bends and straight pipes, the bend pipe placement seat is rotated by the cooperation of a tooth plate and an adjusting gear, and then the angle of the bend pipe fixing assembly is adjusted, so that the device is suitable for bends of different angles. The bend pipe fixing assembly is used to fix the bends, thereby achieving the effect of fixing bends of different angles and ensuring the welding accuracy when welding bends and straight pipes. At the same time, the present invention can weld two straight pipes and a bend at the same time, thereby improving the welding efficiency of the device.

[0018] 2. The electric power pipeline welding equipment described in the present invention, through the arranged rotating seat, connecting plate, straight pipe placement seat and other structures, when the angle of the bent pipe placement seat is adjusted, the rotating seat and connecting plate and other structures are used to make the straight pipe placement seat rotate along with the bent pipe placement seat. That is, when the angle of the bent pipe placement seat is adjusted, the straight pipe placement seat will automatically follow the position adjustment, so that the position of the straight pipe placement seat can automatically adapt to the angle of the bent pipe, thereby improving the convenience of using the device and improving the working efficiency of the device.

[0019] 3. The electric pipeline welding equipment described in the present invention, through the setting of the rotating assembly and other structures, when the welding work is carried out, the driving motor drives the welding gun to rotate through the active wheel and the driven wheel and other structures, and the welding gun rotates around the pipeline for one circle while the welding work is carried out, thereby realizing the automatic welding of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the bottom structure of the workbench of the present invention; Figure 3 It is a structural schematic diagram of the tooth plate of the present invention; Figure 4 It is a schematic diagram of the structure of the elbow placement seat of the present invention; Figure 5 It is a structural schematic diagram of the connecting plate of the present invention; Figure 6 This is a schematic diagram of the structure of the straight tube placement seat of the present invention; Figure 7 It is a structural schematic diagram of the driving motor of the present invention; Figure 8 It is a schematic diagram of the structure of the positioning ring of the present invention; Fig. 9 It is a structural schematic diagram of the force bearing block of the present invention; In the figure: 1. workbench; 2. elbow placement seat; 3. connecting shaft; 4. adjusting gear; 5. automatic telescopic rod; 6. receiving plate; 7. tooth plate; 8. slider; 9. slideway; 10. slide plate; 11. elbow clamping plate; 12. two-way screw; 13. tightening knob; 14. rotating seat; 15. connecting plate; 16. rotating column; 17. straight pipe placement seat; 18. round table; 19. cylinder; 20. straight pipe positioning frame; 21. one-way screw; 22. straight pipe clamping plate; 23. tightening ring ; 24. Welding positioning plate; 25. Positioning ring; 26. Rotating ring; 27. Gear ring; 28. Driving motor; 29. ​​Driving wheel; 30. Positioning block; 31. Positioning shaft; 32. Driven wheel; 33. Transmission belt; 34. Rotating gear; 35. Welding gun; 36. Pressure block; 37. Force block; 38. Elastic part; 39. Arc groove; 40. Fan-shaped groove; 41. Bend pipe body; 42. Straight pipe body; 43. Mounting plate; 44. Vertical plate; 45. Mounting seat; 46. Support leg. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figures 1 to 3As shown, an electric power pipeline welding device described in an embodiment of the present invention comprises a workbench 1, a bend pipe placement seat 2 is symmetrically rotatably installed on the inner wall of the top of the workbench 1, a connecting shaft 3 is fixedly installed on the bottom of the bend pipe placement seat 2, the outer wall of the connecting shaft 3 is rotatably connected to the inner wall of the workbench 1, an adjusting gear 4 is fixedly installed on the outer wall of the connecting shaft 3, an automatic telescopic rod 5 is arranged below the workbench 1, a receiving plate 6 is fixedly installed on one end of the automatic telescopic rod 5, a toothed plate 7 is fixedly installed on the top of the receiving plate 6, the teeth of the two adjusting gears 4 are meshed with the teeth of the toothed plate 7, a slider 8 is fixedly installed on the top of the toothed plate 7, a slide groove 9 is provided at the bottom of the workbench 1, the inner wall of the slide groove 9 is slidably connected to the outer wall of the slider 8, a welding gun 35 is symmetrically arranged above the workbench 1, and a bend pipe fixing assembly is arranged on the inner walls of the two bend pipe placement seats 2; before performing welding work, the bend pipe and the straight pipe need to be fixed respectively, and when fixing the bend pipe, the bend pipe is first fixed according to the angle of the bend pipe to be welded When the toothed plate 7 moves, it will drive the two adjusting gears 4 meshed with it to rotate synchronously in the opposite direction. When the adjusting gear 4 rotates, it will drive the elbow placement seat 2 to rotate through the connecting shaft 3. The rotation of the elbow placement seat 2 can drive the elbow fixing assembly to rotate, thereby achieving the effect of adjusting the angle of the elbow fixing assembly. By adjusting the angle of the elbow fixing assembly, the device can be used for elbows of different angles, thereby fixing elbows of different angles. By fixing the elbow, the welding accuracy of the device when welding between the elbow and the straight pipe is improved. When welding, two straight pipes and the elbow can be welded at the same time, thereby improving the welding efficiency of the device. The welding gun 35 is used for welding.

[0024] like Figure 3 to Figure 4 As shown, the bent pipe fixing assembly includes a slide plate 10 symmetrically and slidably installed on the inner wall of the bent pipe placement seat 2, a bent pipe clamping plate 11 is fixedly installed on the top of the slide plate 10, and a bidirectional screw 12 is rotatably installed on the inner wall of the bent pipe placement seat 2, the inner walls of the two slide plates 10 are threadedly connected to the outer wall of the bidirectional screw 12, and one end of the bidirectional screw 12 is fixedly installed on the outside of the bent pipe placement seat 2; when fixing the bent pipe, the bent pipe is placed on the top of the bent pipe placement seat 2 with the angle adjusted, and then the tightening knob 13 is rotated, the tightening knob 13 will drive the bidirectional screw 12 to rotate, and when the bidirectional screw 12 rotates, the two slide plates 10 will move synchronously in opposite directions under the action of the thread, so that the two bent pipe clamping plates 11 are close to each other, and the two bent pipe clamping plates 11 will clamp the bent pipe after they are close, thereby achieving the fixation of the bent pipe.

[0025] like Figures 1 to 5As shown, a rotating seat 14 is fixedly installed at one end of the connecting shaft 3 away from the bent pipe placement seat 2, and a connecting plate 15 is fixedly installed on the outer wall of the rotating seat 14, and a rotating column 16 is fixedly installed on the inner wall of one end of the connecting plate 15 away from the rotating seat 14, and a straight pipe placement seat 17 is fixedly installed on the top of the rotating column 16, and a straight pipe fixing component is arranged on the top of the straight pipe placement seat 17; when the straight pipe is fixed, the straight pipe is placed above the straight pipe placement seat 17, and then the straight pipe is fixed by the straight pipe fixing component. When the angle of the bent pipe placement seat 2 is adjusted, the adjusting gear 4 will drive the connecting shaft 3 to rotate, and when the connecting shaft 3 rotates, it will drive the rotating seat 14 to rotate. When the rotating seat 14 rotates, it will drive the rotating column 16 to rotate through the connecting plate 15, and when the rotating column 16 rotates, it will drive the straight pipe placement seat 17 to rotate. Therefore, when the angle of the bent pipe placement seat 2 is adjusted, the straight pipe placement seat 17 will automatically follow the position adjustment, so that the position of the straight pipe placement seat 17 can automatically adapt to the angle of the bent pipe, thereby improving the convenience of the device when used.

[0026] like Figure 5 to Figure 6 As shown, the straight tube fixing assembly includes a truncated table 18 fixedly mounted on the top of the straight tube placement seat 17, a cylinder 19 is rotatably mounted on the inner wall of the truncated table 18, a straight tube positioning frame 20 is fixedly mounted on the outer wall of the cylinder 19, a one-way screw 21 is threadedly mounted on the inner wall of the straight tube positioning frame 20, a straight tube clamping plate 22 is rotatably mounted on one end of the one-way screw 21, and a fastening ring 23 is fixedly mounted on the other end of the one-way screw 21; after placing the straight tube on the straight tube placement seat 17, the straight tube positioning frame 20 is rotated to the top of the straight tube placement seat 17, and then the fastening ring 23 is rotated to fasten The ring 23 drives the one-way screw 21 to rotate. When the one-way screw 21 rotates, the straight tube clamping plate 22 moves down through the cooperation with the thread of the straight tube positioning frame 20. After the straight tube clamping plate 22 moves down, it clamps the straight tube, thereby fixing the straight tube. The straight tube positioning frame 20 can be rotated through the cooperation of the frustum 18 and the cylinder 19. When the device completes the welding work, the straight tube positioning frame 20 is rotated to the side away from the straight tube through the cooperation of the frustum 18 and the cylinder 19, removing the obstruction of the straight tube above, so as to facilitate the removal of the welded pipe in the upward direction.

[0027] like Figures 5 to 7 As shown, a welding positioning plate 24 is slidably installed on the inner wall of the straight pipe placement seat 17, and a rotating assembly is provided at one end of the two welding positioning plates 24 close to each other; the welding position is determined by the position of the rotating assembly, and the rotating assembly is fixed at one end of the welding positioning plate 24, and the welding positioning plate 24 is slidably connected to the straight pipe placement seat 17 to provide adjustment for the movement of the rotating assembly. By pushing the rotating assembly to make the welding positioning plate 24 slide in the straight pipe placement seat 17, the position of the rotating assembly can be adjusted, thereby adjusting the welding position, so that the device can weld pipes of different lengths.

[0028] like Figures 7 and 8 As shown, the rotating assembly includes a positioning ring 25 fixed to one end of a welding positioning plate 24, a rotating ring 26 is rotatably mounted on the inner wall of the positioning ring 25, a gear ring 27 is fixedly mounted on the outer wall of the rotating ring 26, a driving motor 28 is arranged below the welding positioning plate 24, a driving wheel 29 is fixedly mounted on the output shaft of the driving motor 28, a positioning block 30 is symmetrically fixedly mounted on the outer wall of the positioning ring 25, a positioning shaft 31 is rotatably mounted on the inner wall of the positioning block 30, a driven wheel 32 and a rotating gear 34 are fixedly mounted on both ends of the positioning shaft 31, a transmission belt 33 is installed between the two driven wheels 32 and the driving wheel 29, the teeth of the two rotating gears 34 are meshed with the teeth of the gear ring 27, and two welding guns 35 are fixedly mounted on the outer wall of the rotating ring 26; the welding guns 35 are located on the rotating ring 26, and when the position of the rotating assembly is adjusted, the position of the rotating ring 26 can be adjusted, thereby realizing the adjustment of the position of the welding gun 35, thereby adjusting the welding position, After the adjustment is completed, the welding gun 35 is started to perform welding work. While the welding gun 35 is working, the driving motor 28 will drive the driving wheel 29 to rotate. The driving wheel 29 drives the two driven wheels 32 to rotate through the two transmission belts 33. When the driven wheel 32 rotates, it will drive the rotating gear 34 to rotate through the positioning shaft 31. The two rotating gears 34 are both engaged with the gear ring 27, thereby driving the gear ring 27 to rotate. When the gear ring 27 rotates, it will drive the welding gun 35 to rotate through the rotating ring 26. While the welding gun 35 is performing welding work, it will rotate around the pipeline for one circle, thereby realizing automatic welding of the pipeline. Notches are provided on the positioning ring 25, the rotating ring 26 and the gear ring 27. The setting of the notch facilitates the subsequent removal of the welded pipeline. The gear ring 27 is driven to rotate by the two rotating gears 34. When one of the rotating gears 34 is located at the notch, the other rotating gear 34 will continue to drive the gear ring 27 to rotate, thereby ensuring that the welding gun 35 can rotate effectively.

[0029] like Figure 5 to Figure 6 and Fig. 9 As shown, a pressure block 36 and a force block 37 are slidably installed on the inner wall of the straight tube placement seat 17, and an elastic member 38 is symmetrically fixedly installed between the pressure block 36 and the force block 37, and the bottom of the pressure block 36 conflicts with the top of the welding positioning plate 24; the position of the rotating component is adjusted first and then the straight tube is fixed. When fixing the straight tube, the position of the straight tube will be fixed as the straight tube clamping plate 22 moves downward. After the straight tube is fixed, it will conflict with the force block 37. The force block 37 is squeezed by the straight tube and completely enters the inner side of the straight tube placement seat 17. At this time, the elastic member 38 is in a contracted state, and the pressure block 36 will squeeze the welding positioning plate 24 under the action of the reverse elastic force of the elastic member 38, thereby fixing the welding positioning plate 24, preventing the rotating component from shifting during welding, and ensuring the welding accuracy.

[0030] like Figure 1 to Figure 2 As shown, arc grooves 39 are symmetrically provided on the top of the workbench 1, and the outer walls of the two rotating columns 16 are slidably connected to the inner walls of the two arc grooves 39 respectively. Fan-shaped grooves 40 are symmetrically provided on the top of the workbench 1, and the two rotating components are respectively located on the inner sides of the two fan-shaped grooves 40; the opening of the arc grooves 39 enables the rotating columns 16 to rotate, and thus the fixed position of the straight tube can be adjusted, and the opening of the fan-shaped grooves 40 provides a storage space for the rotating components, so that the device can work normally.

[0031] like Figure 1 and Figure 5 to Figure 6 As shown, a bent pipe body 41 is installed between the bent pipe placement seat 2 and the bent pipe clamping plate 11, and a straight pipe body 42 is installed between the two straight pipe placement seats 17 and the two straight pipe clamping plates 22 respectively, and the two ends of the bent pipe body 41 are aligned with one end of the two straight pipe bodies 42 respectively, and the two straight pipe bodies 42 are respectively in conflict with the two force blocks 37; the bent pipe body 41 is fixed by the cooperation of the bent pipe placement seat 2 and the bent pipe clamping plate 11, and the straight pipe body 42 is fixed by the cooperation of the straight pipe placement seat 17 and the straight pipe clamping plate 22, so that the bent pipe body 41 and the straight pipe body 42 are aligned, thereby ensuring the welding accuracy of subsequent welding work.

[0032] like Figure 1 to Figure 2 and Figure 7 As shown, a mounting plate 43 is fixedly installed at the bottom of the workbench 1, one end of the automatic telescopic rod 5 away from the receiving plate 6 is fixedly connected to the mounting plate 43, a vertical plate 44 is fixedly installed at the bottom of the welding positioning plate 24, a mounting seat 45 is fixedly installed at the bottom of the vertical plate 44, a driving motor 28 is fixedly installed on the inner side of the mounting seat 45, and a plurality of supporting legs 46 are fixedly installed at the bottom of the workbench 1; the mounting plate 43 provides a fulcrum for the automatic telescopic rod 5, and the cooperation of the vertical plate 44 and the mounting seat 45 provides a fulcrum for the driving motor 28, so that the automatic telescopic rod 5 and the driving motor 28 can provide power for the operation of the device, and the supporting legs 46 support the device so that the device is at a suitable height to facilitate welding work.

[0033] Working principle: before welding, the bent pipe and the straight pipe need to be fixed respectively. When fixing the bent pipe, first adjust the angle of the bent pipe fixing assembly according to the angle of the welded bent pipe. When adjusting the angle, start the automatic telescopic rod 5, and the automatic telescopic rod 5 contracts to drive the receiving plate 6 to move. When the receiving plate 6 moves, it will drive the toothed plate 7 to move. The toothed plate 7 ensures its stability during movement under the action of the slider 8 and the slide groove 9. When the toothed plate 7 moves, it will drive the two adjusting gears 4 meshing with it to rotate synchronously in the opposite direction. When the adjusting gear 4 rotates, it will drive the bent pipe placement seat 2 to rotate through the connecting shaft 3. The rotation of the bent pipe placement seat 2 can drive the bent pipe fixing assembly to rotate, thereby achieving the fixation of the bent pipe. The effect of the angle adjustment of the fixed component is that by adjusting the angle of the elbow fixing component, the device can be suitable for elbows of different angles, so that elbows of different angles can be fixed. By fixing the elbow, the welding accuracy of the device when welding the elbow and the straight pipe is improved. When fixing the elbow, place the elbow on the upper side of the elbow placement seat 2 with the angle adjusted, and then turn the tightening knob 13. The tightening knob 13 will drive the bidirectional screw 12 to rotate. When the bidirectional screw 12 rotates, the two slides 10 will move synchronously in opposite directions under the action of the thread, thereby making the two elbow clamping plates 11 approach each other. After the two elbow clamping plates 11 approach, they will clamp the elbow, thereby achieving the fixation of the elbow.

[0034] When fixing the straight pipe, place the straight pipe above the straight pipe placement seat 17, and then fix the straight pipe through the straight pipe fixing assembly. When adjusting the angle of the bent pipe placement seat 2, the adjusting gear 4 will drive the connecting shaft 3 to rotate. When the connecting shaft 3 rotates, it will drive the rotating seat 14 to rotate. When the rotating seat 14 rotates, it will drive the rotating column 16 to rotate through the connecting plate 15. When the rotating column 16 rotates, it will drive the straight pipe placement seat 17 to rotate. Therefore, when the angle of the bent pipe placement seat 2 is adjusted, the straight pipe placement seat 17 will automatically follow and adjust its position, so that the position of the straight pipe placement seat 17 can automatically adapt to the angle of the bent pipe, thereby improving the convenience of using the device. After being placed on the straight tube placement seat 17, the straight tube positioning frame 20 is rotated to the top of the straight tube placement seat 17, and then the fastening ring 23 is rotated. The fastening ring 23 drives the one-way screw 21 to rotate. When the one-way screw 21 rotates, the straight tube clamping plate 22 moves down through the cooperation with the thread of the straight tube positioning frame 20. After the straight tube clamping plate 22 moves down, it clamps the straight tube, thereby fixing the straight tube. The straight tube positioning frame 20 can be rotated through the cooperation of the frustum 18 and the cylinder 19. When the device completes the welding work, the straight tube positioning frame 20 is rotated to the side away from the straight tube through the cooperation of the frustum 18 and the cylinder 19, and the obstruction of the straight tube above is removed, so that the welded pipe can be removed in the upward direction.

[0035] The welding position is determined by the position of the rotating assembly. The rotating assembly is fixed to one end of the welding positioning plate 24. The welding positioning plate 24 is slidably connected to the straight pipe placement seat 17 to provide adjustment for the movement of the rotating assembly. By pushing the rotating assembly to make the welding positioning plate 24 slide in the straight pipe placement seat 17, the position of the rotating assembly can be adjusted, thereby adjusting the welding position, so that the device can weld pipes of different lengths. The position of the rotating assembly is adjusted first and then the straight pipe is fixed. When fixing the straight pipe, as the straight pipe clamping plate 22 The downward movement of the straight tube will fix the position of the straight tube. After the straight tube is fixed, it will conflict with the force block 37. The force block 37 is squeezed by the straight tube and completely enters the inner side of the straight tube placement seat 17. At this time, the elastic member 38 is in a contracted state, and the pressing block 36 will squeeze the welding positioning plate 24 under the action of the reverse elastic force of the elastic member 38, thereby fixing the welding positioning plate 24, preventing the rotating assembly from shifting during welding, and ensuring the welding accuracy. The welding gun 35 is located on the rotating ring 26. When the position of the rotating assembly is adjusted, the rotating assembly can be adjusted. The position of the moving ring 26 is adjusted to adjust the position of the welding gun 35, thereby adjusting the welding position. After the adjustment is completed, the welding gun 35 is started to perform welding. While the welding gun 35 is working, the driving motor 28 drives the driving wheel 29 to rotate. The driving wheel 29 drives the two driven wheels 32 to rotate through the two transmission belts 33. When the driven wheels 32 rotate, the rotating gear 34 is driven to rotate through the positioning shaft 31. The two rotating gears 34 are both engaged with the gear ring 27, thereby driving the gear ring 27 to rotate. When the gear ring 27 rotates, The welding gun 35 is driven to rotate by the rotating ring 26. The welding gun 35 rotates around the pipe while performing welding, thereby realizing automatic welding of the pipe. Notches are provided on the positioning ring 25, the rotating ring 26 and the gear ring 27. The setting of the notch facilitates the subsequent removal of the welded pipe. The gear ring 27 is driven to rotate by two rotating gears 34. When one of the rotating gears 34 is located at the notch, the other rotating gear 34 will continue to drive the gear ring 27 to rotate, thereby ensuring that the welding gun 35 can rotate effectively.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A power pipeline welding device, comprising a workbench (1), characterized in that: A bent pipe placement seat (2) is symmetrically rotatably mounted on the inner wall of the top of the workbench (1), a connecting shaft (3) is fixedly mounted on the bottom of the bent pipe placement seat (2), the outer wall of the connecting shaft (3) is rotatably connected to the inner wall of the workbench (1), an adjusting gear (4) is fixedly mounted on the outer wall of the connecting shaft (3), an automatic telescopic rod (5) is arranged below the workbench (1), a receiving plate (6) is fixedly mounted on one end of the automatic telescopic rod (5), a toothed plate (7) is fixedly mounted on the top of the receiving plate (6), the teeth of the two adjusting gears (4) are meshed with the teeth of the toothed plate (7), a slider (8) is fixedly mounted on the top of the toothed plate (7), a slide groove (9) is provided at the bottom of the workbench (1), the inner wall of the slide groove (9) is slidably connected to the outer wall of the slider (8), a welding gun (35) is symmetrically arranged above the workbench (1), and a bent pipe fixing assembly is arranged on the inner walls of the two bent pipe placement seats (2).

2. The electric power pipeline welding equipment according to claim 1, characterized in that: The bent pipe fixing assembly comprises a slide plate (10) symmetrically slidably mounted on the inner wall of the bent pipe placement seat (2); a bent pipe clamping plate (11) is fixedly mounted on the top of the slide plate (10); a bidirectional screw (12) is rotatably mounted on the inner wall of the bent pipe placement seat (2); the inner walls of the two slide plates (10) are both threadedly connected to the outer walls of the bidirectional screw (12); and a tightening knob (13) is fixedly mounted on one end of the bidirectional screw (12) and located on the outer side of the bent pipe placement seat (2).

3. The electric power pipeline welding equipment according to claim 2, characterized in that: A rotating seat (14) is fixedly mounted on one end of the connecting shaft (3) away from the bent pipe placement seat (2); a connecting plate (15) is fixedly mounted on the outer wall of the rotating seat (14); a rotating column (16) is fixedly mounted on the inner wall of one end of the connecting plate (15) away from the rotating seat (14); a straight pipe placement seat (17) is fixedly mounted on the top of the rotating column (16); and a straight pipe fixing assembly is provided on the top of the straight pipe placement seat (17).

4. The electric power pipeline welding equipment according to claim 3, characterized in that: The straight tube fixing assembly comprises a truncated table (18) fixedly mounted on the top of the straight tube placement seat (17); a cylinder (19) is rotatably mounted on the inner wall of the truncated table (18); a straight tube positioning frame (20) is fixedly mounted on the outer wall of the cylinder (19); a one-way screw (21) is threadedly mounted on the inner wall of the straight tube positioning frame (20); a straight tube clamping plate (22) is rotatably mounted on one end of the one-way screw (21); and a fastening ring (23) is fixedly mounted on the other end of the one-way screw (21).

5. The electric power pipeline welding equipment according to claim 4, characterized in that: A welding positioning plate (24) is slidably mounted on the inner wall of the straight tube placement seat (17), and a rotating assembly is disposed at one end of the two welding positioning plates (24) that are close to each other.

6. The electric power pipeline welding equipment according to claim 5, characterized in that: The rotating assembly comprises a positioning ring (25) fixed to one end of a welding positioning plate (24); a rotating ring (26) is rotatably mounted on the inner wall of the positioning ring (25); a gear ring (27) is fixedly mounted on the outer wall of the rotating ring (26); a driving motor (28) is arranged below the welding positioning plate (24); a driving wheel (29) is fixedly mounted on the output shaft of the driving motor (28); a positioning block (30) is symmetrically fixedly mounted on the outer wall of the positioning ring (25); a positioning shaft (31) is rotatably mounted on the inner wall of the positioning block (30); a driven wheel (32) and a rotating gear (34) are respectively fixedly mounted on both ends of the positioning shaft (31); a transmission belt (33) is installed between the two driven wheels (32) and the driving wheel (29); the teeth of the two rotating gears (34) are meshed with the teeth of the gear ring (27); and the two welding guns (35) are respectively fixedly mounted on the outer wall of the rotating ring (26).

7. The electric power pipeline welding equipment according to claim 6, characterized in that: A pressing block (36) and a force-bearing block (37) are slidably mounted on the inner wall of the straight tube placement seat (17), an elastic member (38) is symmetrically fixedly mounted between the pressing block (36) and the force-bearing block (37), and the bottom of the pressing block (36) abuts against the top of the welding positioning plate (24).

8. The electric power pipeline welding equipment according to claim 7, characterized in that: The top of the workbench (1) is symmetrically provided with arc grooves (39), the outer walls of the two rotating columns (16) are respectively slidably connected to the inner walls of the two arc grooves (39), the top of the workbench (1) is symmetrically provided with fan-shaped grooves (40), and the two rotating components are respectively located on the inner sides of the two fan-shaped grooves (40).

9. The electric power pipeline welding equipment according to claim 8, characterized in that: A bent pipe body (41) is installed between the bent pipe placement seat (2) and the bent pipe clamping plate (11), and a straight pipe body (42) is installed between the two straight pipe placement seats (17) and the two straight pipe clamping plates (22), respectively. The two ends of the bent pipe body (41) are respectively aligned with one end of the two straight pipe bodies (42), and the two straight pipe bodies (42) are respectively in contact with two force blocks (37).

10. The electric power pipeline welding equipment according to claim 9, characterized in that: A mounting plate (43) is fixedly mounted on the bottom of the workbench (1); one end of the automatic telescopic rod (5) away from the receiving plate (6) is fixedly connected to the mounting plate (43); a vertical plate (44) is fixedly mounted on the bottom of the welding positioning plate (24); a mounting seat (45) is fixedly mounted on the bottom of the vertical plate (44); the driving motor (28) is fixedly mounted on the inner side of the mounting seat (45); and a plurality of supporting legs (46) are fixedly mounted on the bottom of the workbench (1).

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