An inflatable multi-diameter adaptive pipe pile welding and fixing device

Abstract

The present invention provides an inflatable multi-diameter adaptive pipe pile welding and fixing device, which relates to the technical field of pipe pile welding, and includes a set component, a sliding component, a main body, an adjustment component and a welding component. The set component includes two nuts, two semicircular ferrules and two semicircular inflatable parts. The pipe pile part to be welded is covered in the set composed of the two ferrules. The sliding component includes two connecting parts, four driving parts with built-in driving motors and four concave pulleys. The main body includes a welding equipment body. The upper and lower surfaces of the welding equipment body are fixed with a cross frame and two guide columns. The ferrule is fixed in a way that the inflatable part expands and presses against the pipe pile. The friction between the inflatable part and the pipe pile is used for fixing, which will not damage the surface of the pipe pile and ensures that the surface of the pipe pile is intact. The pulley is pulled by the pull ring on the limit plate to disengage the hook from the end of the connecting part. Under the action of a spring tension, the pulley can be quickly clamped on the edge of the ferrule, and the installation of the welding equipment body is conveniently completed.

Description

Technical Field

[0001] The present invention belongs to the technical field of pipe pile welding, and more specifically, relates to an inflatable multi-diameter adaptive pipe pile welding and fixing device. Background Art

[0002] In the field of pipe pile construction, welding and fixation of pipe piles is a key link to ensure the stability of pipe piles and the quality of the project. Currently, the practical application of traditional welding devices for pipe pile construction and fixation has exposed many problems that need to be solved urgently.

[0003] 1. Deficiencies in pipe pile fixing methods: Many existing pipe pile fixing methods, such as using rigid clamps to directly clamp the pipe piles, can achieve fixation. However, during operation, the rigid clamps are in direct contact with the surface of the pipe piles and the pressure is concentrated, which can easily cause scratches, wear and even damage to the surface of the pipe piles, affecting the appearance and structural integrity of the pipe piles, and may reduce the actual bearing capacity and service life of the pipe piles in the project.

[0004] 2. Poor Fixing: Some fixing methods rely solely on simple mechanical connections. During the welding process, vibration and external forces can cause the fixing structure to loosen, resulting in pipe pile position shifting, seriously affecting welding quality and increasing the risk of rework and construction costs. Furthermore, some fixing methods are difficult to adapt to the characteristics of pipe piles of different materials. The fixing force and method cannot be properly adjusted according to the material of the pipe pile, resulting in unstable fixing results.

[0005] 3. Inconvenient welding device adjustment: Vertical and horizontal position adjustment is difficult. Traditional welding devices are complex and have low precision when adjusting the welding gun position. Vertical adjustment often requires complex tools and tedious steps, making it difficult to achieve small and precise height adjustments. This results in the inability to quickly and accurately position the welding gun when facing welding tasks with different height requirements. Horizontal position adjustment also faces similar problems. It is difficult to flexibly and accurately change the horizontal position of the welding gun, which cannot meet the diverse welding gun position requirements required by complex welding processes, thus affecting welding results and efficiency.

[0006] 4. Poor pipe diameter adaptability: With the increasing diversification of pipe pile applications in construction projects, different projects may utilize pipe piles of various diameters. However, existing welding equipment is typically only suitable for pipe piles of a single or a few diameters. Switching pipe diameters often requires extensive replacement or modification of the entire equipment, which is not only cumbersome but also costly, severely limiting its versatility and construction efficiency.

[0007] 5. Safety and reliability issues: High-temperature sparks are generated during the welding process. Traditional welding equipment lacks effective fire prevention and high-temperature protection measures for pulleys, ferrules, and pipe pile fixing components. Sparks directly burn and may damage components, shorten the service life of the device, and even cause safety accidents, posing a potential threat to personnel and equipment on the construction site.

[0008] In summary, existing welding devices for pipe pile construction have numerous deficiencies in terms of pipe pile fixation, welding device adjustment, safety, reliability, and ease of operation, making them difficult to meet the growing demands for high quality, high efficiency, and high safety in modern pipe pile construction. Therefore, developing a novel welding device for pipe pile construction is of great practical significance, and this present invention is developed with this background in mind. Summary of the Invention

[0009] In order to solve the above technical problems, the present invention provides an inflatable multi-diameter adaptive pipe pile welding and fixing device to solve the above problems.

[0010] An inflatable multi-diameter adaptive pipe pile welding and fixing device comprises a set component, a sliding component, a main body, an adjustment component and a welding component;

[0011] The set assembly includes two nuts, two semicircular ferrules and two semicircular inflatable pieces, and the pipe pile piece to be welded is enclosed in the set assembly consisting of the two ferrules;

[0012] The sliding assembly includes two connecting parts, four driving parts with built-in driving motors and four concave pulleys;

[0013] The main part includes a welding equipment body, and a cross frame and two guide columns are fixed on the upper and lower sides of the welding equipment body;

[0014] The adjustment assembly includes a connecting frame and a lifting rod, and the lifting member and the base with a hole are fixedly connected to the lifting rod;

[0015] The welding assembly includes a swivel seat and a slide bar;

[0016] Wherein, the welding equipment body is fixed to the connecting frame.

[0017] Preferably, a circular hole is formed in the middle of each ferrule, a semicircular groove is formed at both ends of each ferrule, a semicircular threaded column is fixed in each semicircular groove, two inflatable members are respectively fixed to the inner walls of the two ferrules, and the inflation nozzles of the two inflatable members are respectively located in the two circular holes;

[0018] Among them, one of the ferrules has a socket at both ends, and the other ferrule has a pin fixedly connected at both ends. The two ferrules are connected by the pin and the socket. When the two ferrules are connected, the two pairs of semicircular threaded columns spliced ​​together are respectively connected to the two nut threads.

[0019] Preferably, a vertical sliding groove is provided in the middle portion of the two connecting members, and a connecting frame is fixedly connected to the upper and lower ends of the two connecting members, and a strip groove is provided in the middle portion of each connecting frame;

[0020] Among them, the adjacent ends of the two connecting frames at the upper end are rotatably connected with sleeve blocks, and the adjacent ends of the two connecting frames at the lower end are rotatably connected with the same sleeve blocks. A threaded hole is opened on the upper surface of each sleeve block, and a rod groove is passed through the side of each sleeve block. A positioning screw is threadedly sleeved in the threaded hole at the upper end.

[0021] Preferably, the output shafts of the four driving members are fixed to the axis centers of the four pulleys respectively, each driving member is fixedly connected to a sliding member, and each sliding member is fixed with a limiting plate;

[0022] Wherein, each limiting piece is fixed with a hook and a pull ring.

[0023] Preferably, each pull ring on the limiting piece is hung with a hanging ring, and a spring 1 is fixedly connected between the two hanging rings on the same connecting piece;

[0024] Among them, the spring is in a stretched state.

[0025] Preferably, each cross frame is provided with four positioning holes, a side groove is provided on the side of the connecting frame facing the swivel seat, a top groove is provided on the upper surface of the connecting frame, two L-shaped teeth are fixedly connected to the upper surface of the connecting frame, a rotating rod is rotatably sleeved in the top groove, the rod surface of the rotating rod is a threaded surface, a rectangular section is fixedly connected to the top of the rotating rod, and a disc is fixed on the rectangular section;

[0026] Among them, two internal rods are fixedly connected in the side groove, the internal rods are parallel to the rotating rod, and a second spring is sleeved on the rotating rod.

[0027] Preferably, a gear is clamped between the two teeth, a rectangular hole is opened in the middle part of the gear, a turntable is fixed on the upper surface of the gear, a circular groove is opened in the middle part of the upper surface of the turntable, and a rectangular hole of the same hole shape is opened at the bottom of the circular groove;

[0028] The rectangular section is sleeved in the rectangular hole and the rectangular aperture, and the circular piece is stuck in the circular groove.

[0029] Preferably, a threaded hole is formed in the middle of the lifting member, and holes are formed on both sides of the threaded hole. The lifting member is located in the side groove, and the two holes on the lifting member are movably connected to the two internal rods respectively, and the threaded hole on the lifting member is threadedly connected to the rotating rod.

[0030] Wherein, the lifting rod is attached to the side wall of the connecting frame.

[0031] Preferably, a middle groove is provided on the lifting rod, an middle rod is fixedly connected in the middle groove, a spring three is sleeved on the middle rod, a slider is movably sleeved on the middle rod, a stopper and a lifting block are fixed at both ends of the slider, an octagonal rod is fixed on the bottom surface of the lifting block, and the spring three is located between the slider and the top surface of the middle groove;

[0032] Among them, a short rod is fixedly connected to the bottom surface of the swivel seat, an octagonal groove is opened on the upper surface of the swivel seat, the octagonal groove is movably connected to the octagonal rod, and a baffle and two columns are also fixedly connected to the upper surface of the swivel seat. The slide rod is movably sleeved between the two columns, and a spring four is sleeved on the slide rod. A baffle ring is fixed to the middle part of the slide rod, and the two ends of the slide rod are respectively fixedly connected to a splint and a pull piece.

[0033] Preferably, a clamping screw is threadedly sleeved on the baffle, a bracket is fixedly connected to the swivel seat, a switch screw is threadedly sleeved on the top of the bracket, a welding gun is clamped between the column and the baffle, a retaining ring is located between the two columns, and the short rod is rotatably sleeved in the hole on the upper surface of the base;

[0034] Four pulleys are clamped on the upper and lower edges of the hoop, and the positioning screws are inserted into the positioning holes at corresponding positions through the threaded holes. Partitions are fixed around the sliding rod and the two columns.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] In the present invention, the ferrule is fixed by expanding the inflatable piece and pressing it against the pipe pile. The friction between the inflatable piece and the pipe pile is used for fixation, which will not damage the surface of the pipe pile and ensure the integrity of the pipe pile surface. The two ferrules are quickly fixed into a complete ring through the jack, the pin, the semicircular threaded column and the nut. The inflatable piece is then inflated to 0.1-0.3MPa (set according to the table of the pipe pile material), which can quickly and stably fix the ferrule on the surface of the pipe pile. The semicircular threaded column and the nut cooperate to ensure that the locking force is greater than the inflation expansion force, thereby ensuring the stability of the fixation. The inflatable piece is made of nitrile rubber with a thickness of 5-8mm, which can ensure uniform elastic deformation and further enhance the fixing effect.

[0037] In the present invention, a pull ring on a limit plate pulls the pulley, disengaging the hook from the end of the connector. Under the tension of a spring, the pulley quickly snaps onto the edge of the hoop, conveniently completing the installation of the welding equipment body. By holding the turntable upward and disengaging the gear from the retaining teeth, rotating the turntable drives the rotating rod, which in turn drives the lifting member up and down, achieving slight vertical adjustment of the welding gun height on the lifting rod. The retaining teeth on the gear during welding ensure the stability of the rotating rod, ensuring accurate welding gun position during the welding process. By moving the lifting block upward and disengaging the octagonal rod from the octagonal slot, the swivel seat can be deflected, thereby flexibly changing the horizontal position of the welding gun. Combined with vertical fine-tuning, this allows for more accurate positioning of the welding gun, significantly improving welding performance. Furthermore, the spring's three elastic parameters, ≥10N, effectively prevent the swivel seat from rotating due to welding vibration, ensuring reliable locking.

[0038] In the present invention, four corresponding positioning holes are set on the cross frame for common pipe piles with outer diameters of 300mm, 400mm, 500mm and 600mm. When switching the size of the pipe pile, the positioning screw is rotated to disengage it from the positioning hole, and the sleeve moves along the cross frame, cooperating with the guide column to slide in the strip groove, driving the pulley angle to deflect, so that the concave angle of the pulley is adapted to pipe piles of different diameters, which greatly improves the applicability of the device and simplifies the adjustment process.

[0039] In the present invention, a high-temperature resistant coating is added to the surface of the pulley and the hoop, and the outside of the inflatable part is covered with a fireproof cloth (such as fiberglass cloth), which can effectively prevent direct burning from welding sparks and improve the safety of the device during the welding process. A washer is installed on the nut to prevent the nut from loosening under conditions such as welding vibration, thereby ensuring the stability and reliability of the overall structure of the device. The end of the octagonal rod is provided with an anti-slip coating to enhance the stability of the cooperation between the octagonal rod and the octagonal groove, further ensuring the reliability of the device during use.

[0040] In the present invention, after the welding gun enters the working state, the drive motor in the remote control drive component rotates, which can drive the pulley to rotate, thereby realizing automatic circular motion of the welding gun, which is convenient for welding operations on pipe piles. Infrared remote control signals are used, and the remote control equipment is provided with start, stop, acceleration, and deceleration buttons. The drive motor speed adjustment range is 0-5rpm, which is convenient for the operator to remotely control the welding process and improve the convenience and flexibility of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a structural schematic diagram of the ferrule in the present invention;

[0043] Figure 3 This invention Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0044] Figure 4 It is a structural schematic diagram of the lifting rod in the present invention;

[0045] Figure 5 It is a structural schematic diagram of the welding equipment body in the present invention;

[0046] Figure 6 It is a structural diagram of the connection frame in the present invention;

[0047] Figure 7 Schematic diagram of the structure of the transposition device in the present invention;

[0048] Figure 8 It is a structural schematic diagram of the sliding rod in the present invention;

[0049] Figure 9 This invention Figure 6 Schematic diagram of the enlarged structure at C in the middle;

[0050] Figure 10 It is a structural schematic diagram of the connecting member in the present invention;

[0051] Figure 11 It is a structural schematic diagram of the pulley in the present invention;

[0052] Figure 12 This invention Figure 10 Schematic diagram of the enlarged structure at point B in the middle.

[0053] In the figure, the corresponding relationship between the structure names and the reference numerals is as follows: 1. pipe pile member; 2. hoop; 3. connecting member; 4. swivel seat; 5. welding equipment body; 6. lifting rod; 7. connecting frame; 8. semicircular groove; 9. semicircular threaded column; 10. round hole; 11. inflatable member; 12. nut; 13. slide; 14. spring; 15. hanging ring; 16. pulley; 17. driving member; 18. connecting frame; 19. positioning screw; 20. sleeve; 21. threaded hole; 22. rod groove; 23. sliding member; 24. hook; 25. limit plate; 26. cross frame; 27. guide column; 28. positioning hole; 29. ​​side groove; 30. latch; 31. top Slot; 32. Rectangular hole; 33. Gear; 34. Turntable; 35. Circular slot; 36. Rectangular hole; 37. Internal rod; 38. Turning rod; 39. Spring two; 40. Rectangular segment; 41. Disc; 42. Lifting piece; 43. Middle rod; 44. Spring three; 45. Middle slot; 46. Base; 47. Strip slot; 48. Short rod; 49. Octagonal slot; 50. Post; 51. Bracket; 52. Switch screw; 53. Baffle; 54. Clamping screw; 55. Slider; 56. Baffle; 57. Octagonal rod; 58. Pull piece; 59. Partition; 60. Sliding rod; 61. Spring four; 62. Baffle ring; 63. Clamp; 64. Lifting block. DETAILED DESCRIPTION

[0054] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0055] See also Figures 1-12The present invention provides an inflatable multi-diameter adaptive pipe pile welding and fixing device, comprising a set component, a sliding component, a main body, an adjustment component and a welding component, the set component comprising two nuts 12, two semicircular hoops 2 and two semicircular inflatable parts 11, the set consisting of the two hoops 2 is covered with a pipe pile part 1 to be welded, the sliding component comprises two connecting parts 3, four driving parts 17 with built-in driving motors and four concave pulleys 16, the main body comprises a welding equipment body 5, the upper and lower surfaces of the welding equipment body 5 are fixed with a cross frame 26 and two guide columns 27, the adjustment component comprises a connecting frame 7 and a lifting rod 6, the lifting rod 6 is fixedly connected with a lifting part 42 and a base 46 with a hole, the inflatable part 11 is used to fix the hoop 2, and then the hoop 2 is used to make the welding gun slide along the hoop 2 to complete the welding of the pipe pile, the stability is high, and the position of the welding gun is conveniently adjusted by the swivel seat 4;

[0056] The welding assembly includes a swivel seat 4 and a slide rod 60, wherein the welding equipment body 5 is fixed to the connecting frame 7, a circular hole 10 is provided in the middle part of each ferrule 2, a semicircular groove 8 is provided at both ends of each ferrule 2, a semicircular threaded column 9 is fixed in each semicircular groove 8, two inflatable pieces 11 are respectively fixed to the inner walls of the two ferrules 2, and the inflation nozzles of the two inflatable pieces 11 are respectively located in the two circular holes 10, wherein both ends of one of the ferrules 2 are provided with a socket, and both ends of the other ferrule 2 are fixedly connected with a pin, and the two ferrules 2 are clamped together by the pin and the socket. When the two ferrules 2 are clamped, the two pairs of spliced ​​together semicircular threaded columns 9 are respectively threadedly sleeved with the two nuts 12, The two hoops 2 are fixed together through the jack, the pin, the semicircular threaded column 9 and the nut 12 to form a complete ring, and then the two inflatable parts 11 are inflated using the air nozzle in the circular hole 10 to expand and press against the pipe pile. The air is inflated to an air pressure of 0.1-0.3MPa (set according to the table of the pipe pile material), so that the hoops 2 can be fixed on the surface of the pipe pile, achieving the effect of quickly fixing the hoops 2. The friction between the inflatable part 11 and the pipe pile is used for fixing, which will not damage the surface of the pipe pile and can protect the integrity of the pipe pile surface. The cooperation between the semicircular threaded column 9 and the nut 12 ensures that the locking force is greater than the inflation expansion force. The material of the inflatable part 11 is nitrile rubber with a thickness of 5-8mm to ensure uniform elastic deformation.

[0057] A vertical slide groove 13 is provided in the middle part of the two connecting members 3, and the upper and lower ends of the two connecting members 3 are fixedly connected to a connecting frame 18. A strip groove 47 is provided in the middle part of each connecting frame 18, wherein the proximal ends of the two connecting frames 18 at the upper end are rotatably connected to a sleeve block 20, and the proximal ends of the two connecting frames 18 at the lower end are rotatably connected to the same sleeve block 20. A threaded hole 21 is provided on the upper surface of each sleeve block 20, and a rod groove 22 is passed through the side of each sleeve block 20. A positioning screw 19 is threadedly sleeved in the threaded hole 21 at the upper end.

[0058] The output shafts of the four driving members 17 are fixed to the axis centers of the four pulleys 16 respectively. Each driving member 17 is fixedly connected to a sliding member 23. Each sliding member 23 is fixed with a limiting plate 25, wherein each limiting plate 25 is fixed with a hook 24 and a pull ring.

[0059] Each pull ring on the limiting piece 25 is hung with a hanging ring 15, and a spring 14 is fixedly connected between the two hanging rings 15 on the same connecting piece 3, wherein the spring 14 is in a stretched state, and each cross frame 26 is provided with four positioning holes 28, and a side groove 29 is provided on the side of the connecting frame 7 facing the swivel seat 4, and a top groove 31 is provided on the upper surface of the connecting frame 7. Two L-shaped teeth 30 are fixedly connected to the upper surface of the connecting frame 7, and a rotating rod 38 is rotatably sleeved in the top groove 31. The rod surface of the rotating rod 38 is a threaded surface, and a rectangular section 40 is fixedly connected to the top of the rotating rod 38, and a circular piece 41 is fixed on the rectangular section 40, wherein two internal rods 37 are also fixedly connected in the side groove 29, and the internal rod 37 is parallel to the rotating rod 38, and a spring 2 39 is sleeved on the rotating rod 38.

[0060] A gear 33 is clamped between the two teeth 30. A rectangular hole 32 is provided in the middle part of the gear 33. A turntable 34 is fixed to the upper surface of the gear 33. A circular groove 35 is provided in the middle part of the upper surface of the turntable 34. A rectangular hole 36 of the same hole shape is provided at the bottom of the circular groove 35. The rectangular section 40 is inserted into the rectangular hole 36 and the rectangular hole 32, and the disc 41 is clamped in the circular groove 35.

[0061] The middle part of the lifting member 42 is provided with a threaded hole, and holes are provided on both sides of the threaded hole. The lifting member 42 is located in the side groove 29. The two holes on the lifting member 42 are respectively movably connected with the two internal rods 37. The threaded hole on the lifting member 42 is threadedly connected with the rotating rod 38. Among them, the lifting rod 6 is fitted on the side wall of the connecting frame 7. The lifting rod 6 is provided with an intermediate groove 45. The intermediate groove 45 is fixedly connected with the intermediate rod 43. The intermediate rod 43 is provided with a spring 44. The intermediate rod 43 is movable. The slider 55 is provided, and the two ends of the slider 55 are respectively fixed with a stopper 56 and a lifting block 64. The bottom surface of the lifting block 64 is fixed with an octagonal rod 57. The spring 44 is located between the slider 55 and the top surface of the middle groove 45. Among them, the bottom surface of the rotating seat 4 is fixedly connected with a short rod 48. The upper surface of the rotating seat 4 is provided with an octagonal groove 49. The octagonal groove 49 is movably connected to the octagonal rod 57. The upper surface of the rotating seat 4 is also fixedly connected with a baffle 53 and two columns 50. The slide rod 60 is movably sleeved on the two columns. 50, a spring 61 is sleeved on the slide 60, a retaining ring 62 is fixed to the middle part of the slide 60, and the two ends of the slide 60 are fixedly connected to the clamping plate 63 and the pull piece 58 respectively. The clamping screw 54 is threadedly sleeved on the baffle 53. The bracket 51 is also fixedly connected to the swivel seat 4, and the switch screw 52 is threadedly sleeved on the top of the bracket 51. The welding gun is clamped between the column 50 and the baffle 53. The retaining ring 62 is located between the two columns 50. The short rod 48 is rotatably sleeved on the base 46. After fixing the position of the hoop 2, the connecting piece 3 is brought close to the hoop 2, and the pull ring on the limiting piece 25 is used to pull the pulley 16 to disengage the hook 24 from the end of the connecting piece 3. The hook 24 is an elastic piece. The operator can slightly bend the hook 24 so that it is no longer blocked by the connecting piece 3. At this time, under the tension of the spring 14, the pulley 16 will be stuck to the edge of the hoop 2. Under the same operation, the four pulleys 16 will clamp the upper and lower edges of the hoop 2 to complete the installation of the welding equipment body 5;

[0062] Hold the turntable 34 and move it upward, driving the gear 33 to break away from the restriction of the two teeth 30 until the disc 41 is blocked by the bottom of the circular groove 35. At this time, the turntable 34 can be rotated to drive the rotating rod 38 to rotate, thereby driving the lifting member 42 to move up and down, achieving the effect of moving the welding gun on the lifting rod 6 to achieve a small vertical adjustment of the welding gun position. During the welding process, due to the restriction of the teeth 30 on the gear 33, the rotating rod 38 cannot deflect, maintaining sufficient stability.

[0063] The relationship between the angle of the pulley 16 and the sliding of the guide column 27 for pipe piles of different diameters is shown in the following table (based on the principle of geometric transmission and actual engineering measurement data):

[0064]

[0065] A high-temperature resistant coating is added to the surface of the pulley 16 and the hoop 2, and the outside of the inflatable member 11 is covered with a fireproof cloth (such as glass fiber cloth) to prevent direct burning by sparks. After inflation, a pressure gauge can be connected to the air nozzle in the circular hole 10 to observe the pressure value and accurately adjust the inflation pressure. A washer is installed on the nut 12 to prevent loosening, and the end of the octagonal rod 57 is provided with an anti-slip coating.

[0066] The four pulleys 16 are clamped on the upper and lower edges of the hoop 2, the positioning screw 19 passes through the threaded hole 21 and is inserted into the positioning hole 28 at the corresponding position, and a partition 59 is fixed around the slide rod 60 and the two columns 50. The elastic material of the hook 24 is spring steel, and a rubber pad (Shore hardness 60A) is provided on the inside of the clamping plate 63, and the clamping force is ensured by the preload force (50N) of the spring four 61.

[0067] Working principle:

[0068] When the present invention is used, the inflatable member 11 is used to fix the hoop 2, and then the hoop 2 is used to make the welding gun slide along the hoop 2 to complete the welding of the pipe pile. The stability is high and the position of the welding gun can be easily adjusted by the swivel seat 4. The details are as follows:

[0069] The two ferrules 2 are fixed together through the jack, the pin, the semicircular threaded column 9 and the nut 12 to form a complete ring, and then the two inflatable parts 11 are inflated by the air nozzle in the circular hole 10 to expand and press against the pipe pile, and the air pressure is inflated to 0.1-0.3MPa (set according to the table of the material of the pipe pile), so that the ferrule 2 can be fixed on the surface of the pipe pile, achieving the effect of quickly fixing the ferrule 2, and the friction between the inflatable part 11 and the pipe pile is used for fixing, which will not damage the surface of the pipe pile and can protect the integrity of the pipe pile surface. The cooperation between the semicircular threaded column 9 and the nut 12 ensures that the locking force is greater than the inflation expansion force. The material of the inflatable part 11 is nitrile rubber with a thickness of 5-8mm to ensure uniform elastic deformation;

[0070] After fixing the position of the hoop 2, the connecting piece 3 is brought close to the hoop 2, and the pull ring on the limiting piece 25 is used to pull the pulley 16 to disengage the hook 24 from the end of the connecting piece 3. The hook 24 is an elastic piece, and the operator can slightly bend the hook 24 so that it is no longer blocked by the connecting piece 3. At this time, under the tension of the spring 14, the pulley 16 will be stuck to the edge of the hoop 2. Under the same operation, the four pulleys 16 will clamp the upper and lower edges of the hoop 2 to complete the installation of the welding equipment body 5;

[0071] Holding the turntable 34 and moving it upward, the gear 33 is driven to break away from the restriction of the two teeth 30 until the disc 41 is blocked by the bottom of the circular groove 35. At this time, the turntable 34 can be rotated to drive the rotating rod 38 to rotate, thereby driving the lifting member 42 to move up and down, achieving the effect of moving the welding gun on the lifting rod 6 to the height, facilitating slight vertical adjustment of the welding gun position. During welding, due to the restriction of the teeth 30 on the gear 33, the rotating rod 38 cannot deflect, maintaining sufficient stability;

[0072] By moving the lifting block 64 upward, the octagonal rod 57 is disengaged from the octagonal groove 49. At this time, the swivel seat 4 can be deflected, thereby changing the horizontal position of the welding gun, facilitating fine-tuning of the horizontal position of the welding gun. In conjunction with the above-mentioned fine-tuning of the vertical position of the welding gun, the welding gun is accurately positioned, thereby improving the welding effect. The elastic force parameter of the spring 3 44 is ≥10N to prevent the swivel seat 4 from rotating due to welding vibration, thereby ensuring locking reliability.

[0073] For pipe piles of different sizes, ferrules 2 of different sizes can be prepared. Common pipe pile outer diameters are generally 300mm, 400mm, 500mm, and 600mm. The four positioning holes 28 on the cross frame 26 correspond to the four sizes respectively. When switching to pipe piles of different sizes, the positioning screw 19 is rotated to disengage the positioning hole 28, and the sleeve block 20 moves along the cross frame 26. In conjunction with the sliding of the guide column 27 in the strip groove 47, the connecting frame 18 and the connecting member 3 drive the pulley 16 to deflect the angle, so that the concave angle of the pulley 16 can adapt to pipe piles of different sizes, thereby improving applicability and convenient adjustment.

[0074] During use, by rotating the switch screw 52, ​​it pushes against the switch key of the welding gun, so that the welding gun enters the working state, the driving member 17 is electrically connected to the welding equipment body 5, and the welding equipment body 5 is externally powered. After the welding gun enters the working state, the driving motor in the remote control driving member 17 is rotated, driving the pulley 16 to rotate, completing the automatic circular motion of the welding gun. Using infrared remote control signals, the remote control device is provided with start, stop, acceleration, and deceleration buttons, and the speed adjustment range of the driving motor is 0-5rpm.

[0075] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. An inflatable multi-diameter adaptive pipe pile welding and fixing device, characterized by: The pipe pile welding fixture comprises a set assembly, a sliding assembly, a main body, an adjustment assembly and a welding assembly; The set assembly includes two nuts (12), two semicircular hoops (2) and two semicircular inflatable members (11), the set consisting of the two hoops (2) contains a pipe pile member (1) to be welded, the sliding assembly includes two connecting members (3), four driving members (17) with built-in driving motors and four concave pulleys (16), the main body includes a welding device body (5), the upper and lower surfaces of the welding device body (5) are fixed with a cross frame (26) and two guide columns (27), the adjustment assembly includes a connecting frame (7), a lifting rod (6), the lifting rod (6) is fixedly connected with a lifting member (42) and a base with a hole (46), and the welding assembly includes a swivel seat (4) and a sliding rod (60); Wherein, the welding equipment body (5) is fixed to the connecting frame (7); The middle parts of the two connecting members (3) are provided with a vertical slide groove (13), the upper and lower ends of the two connecting members (3) are fixedly connected to the connecting frame (18), the middle part of each connecting frame (18) is provided with a strip groove (47), the adjacent ends of the two connecting frames (18) at the upper end are rotatably connected to the sleeve block (20), and the adjacent ends of the two connecting frames (18) at the lower end are rotatably connected to the same sleeve block (20), the upper surface of each sleeve block (20) is provided with a threaded hole (21), the side surface of each sleeve block (20) is penetrated by a rod groove (22), and the threaded hole (21) at the upper end is internally threaded with a positioning screw (19); The output shafts of the four driving members (17) are respectively fixed to the axis centers of the four pulleys (16), each driving member (17) is fixedly connected to a sliding member (23), each sliding member (23) is fixed with a limiting plate (25), and each limiting plate (25) is fixed with a hook (24) and a pull ring; Each pull ring on the limiting piece (25) is hung with a hanging ring (15), and a spring (14) is fixedly connected between the two hanging rings (15) on the same connecting member (3), and the spring (14) is in a stretched state; Each cross frame (26) is provided with four positioning holes (28), a side groove (29) is provided on the side of the connecting frame (7) facing the rotating seat (4), a top groove (31) is provided on the upper surface of the connecting frame (7), two L-shaped teeth (30) are fixedly connected to the upper surface of the connecting frame (7), a rotating rod (38) is rotatably sleeved in the top groove (31), the rod surface of the rotating rod (38) is a threaded surface, a rectangular section (40) is fixedly connected to the top of the rotating rod (38), a disc (41) is fixed on the rectangular section (40), and two internal rods (37) are also fixedly connected in the side groove (29), the internal rod (37) and the rotating rod (38) are parallel, and a spring 2 (39) is sleeved on the rotating rod (38); A gear (33) is clamped between the two teeth (30), a rectangular hole (32) is provided in the middle portion of the gear (33), a turntable (34) is fixed on the upper surface of the gear (33), a circular groove (35) is provided in the middle portion of the upper surface of the turntable (34), a rectangular hole (36) of the same hole shape is provided at the bottom of the circular groove (35), the rectangular section (40) is sleeved in the rectangular hole (36) and the rectangular hole (32), and the disc (41) is clamped in the circular groove (35); The lifting rod (6) is provided with an intermediate groove (45), the intermediate groove (45) is fixedly connected with an intermediate rod (43), the intermediate rod (43) is sleeved with a spring three (44), the intermediate rod (43) is movably sleeved with a slider (55), the two ends of the slider (55) are respectively fixed with a stopper (56) and a lifting block (64), the bottom surface of the lifting block (64) is fixed with an octagonal rod (57), the spring three (44) is located between the slider (55) and the top surface of the intermediate groove (45), the bottom surface of the swivel seat (4) is fixedly connected with a short Rod (48), the upper surface of the swivel seat (4) is provided with an octagonal groove (49), the octagonal groove (49) is movably connected to the octagonal rod (57), the upper surface of the swivel seat (4) is also fixedly connected with a baffle (53) and two columns (50), the slide rod (60) is movably sleeved between the two columns (50), the slide rod (60) is sleeved with a spring four (61), the middle part of the slide rod (60) is fixed with a baffle ring (62), and the two ends of the slide rod (60) are respectively fixedly connected with a splint (63) and a pull piece (58).

2. The inflatable multi-diameter adaptive pipe pile welding and fixing device according to claim 1, characterized in that: A circular hole (10) is provided in the middle portion of each ferrule (2), a semicircular groove (8) is provided at both ends of each ferrule (2), a semicircular threaded column (9) is fixed in each semicircular groove (8), two inflatable members (11) are respectively fixed to the inner walls of the two ferrules (2), and the inflatable nozzles of the two inflatable members (11) are respectively located in the two circular holes (10); Wherein, both ends of one ferrule (2) are provided with a socket, and both ends of the other ferrule (2) are fixedly connected with a pin, and the two ferrules (2) are clamped together through the pin and the ferrule. When the two ferrules (2) are clamped together, the two pairs of semicircular threaded columns (9) spliced ​​together are respectively threadedly sleeved with the two nuts (12).

3. The inflatable multi-diameter adaptive pipe pile welding and fixing device according to claim 2, characterized in that: A threaded hole is formed in the middle of the lifting member (42), and holes are formed on both sides of the threaded hole. The lifting member (42) is located in the side groove (29), and the two holes on the lifting member (42) are respectively movably connected to the two internal rods (37), and the threaded hole on the lifting member (42) is threadedly connected to the rotating rod (38); The lifting rod (6) is fitted on the side wall of the connecting frame (7).

4. The inflatable multi-diameter adaptive pipe pile welding and fixing device according to claim 3, characterized in that: A clamping screw (54) is threadedly sleeved on the baffle (53), a bracket (51) is fixedly connected to the swivel seat (4), a switch screw (52) is threadedly sleeved on the top of the bracket (51), a welding gun is clamped between the column (50) and the baffle (53), a retaining ring (62) is located between the two columns (50), and a short rod (48) is rotatably sleeved in a hole on the upper surface of the base (46); Four pulleys (16) are clamped on the upper and lower edges of the hoop (2), and the positioning screw (19) passes through the threaded hole (21) and is inserted into the positioning hole (28) at the corresponding position. A partition (59) is fixed around the slide rod (60) and the two columns (50).

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