A pipeline pre-welding laser rust removal device

Abstract

The utility model discloses a kind of pipeline before welding laser rust cleaning equipment, it is related to pipeline rust cleaning and cleaning equipment technical field, specifically a kind of pipeline before welding laser rust cleaning equipment, including laser cleaning tooling and laser rust cleaning machine;The laser cleaning tooling includes annular clamping plate component, laser fixing seat component and driving mechanism;The utility model uses laser rust cleaning technology, can high-efficiency rust removal and accurate control surface roughness.Pulse laser and continuous laser output by laser head can efficiently remove the rust of pipeline surface, while by accurately controlling the parameter and rust removal process of laser, the roughness of pipeline surface can be controlled at lower level, meet the requirement of weld formation and quality control when subsequent welding.Compared with prior art, the utility model not only improves rust removal efficiency, but also significantly improves the surface quality after rust removal, provides better conditions for subsequent pipeline welding and anticorrosion patching.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline rust removal and cleaning equipment, specifically a laser rust removal device for pipelines before welding. Background Technology

[0002] Rust removal is a crucial step in pipeline maintenance and repair. Traditional rust removal methods primarily utilize sandblasting equipment. While this method effectively removes rust from pipeline surfaces, it also presents several problems. First, sandblasting generates a large amount of dust, which not only pollutes the environment but also poses serious health risks to operators, such as causing respiratory illnesses. Second, sandblasting consumes significant amounts of abrasive materials, such as silica sand and steel shot, which are costly to use. Furthermore, in open-air sandblasting, the recovery of the shot is difficult, resulting in low recycling rates and further increasing costs. In addition, to mitigate the hazards of dust, a series of protective and recovery measures are required, such as installing high-efficiency ventilation equipment and residual sand recovery systems. Operators also need to wear specialized dust masks and protective goggles, all of which add to the additional costs and operational complexity.

[0003] To address the aforementioned problems, some improved rust removal equipment has emerged in the existing technology. For example, Chinese patent application publication number CN 113579482 A discloses a pipeline laser rust removal device. This device uses a laser rust removal component to treat the pipeline surface, effectively removing rust without the need for cleaning impurities, thus simplifying the rust removal operation. However, this device still has some shortcomings in practical applications. For instance, the fixing and adjustment method of its laser rust removal component is relatively complex, hindering rapid installation and adjustment; furthermore, the device's control over the roughness of the pipeline surface during rust removal is not precise enough, making it difficult to meet the rust removal and cleaning requirements before pipeline welding. Therefore, how to provide a device that can perform rust removal and cleaning of pipelines more efficiently and accurately is a technical problem that needs to be solved. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a laser rust removal device for pipelines before welding, which solves the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a laser rust removal device for pipelines before welding, comprising a pipeline, a laser cleaning fixture, and a laser rust removal and cleaning machine; the laser cleaning fixture comprises an annular clamping plate component, a laser fixing seat component, and a driving mechanism; the laser fixing seat component is mounted above the annular clamping plate component, the bottom of the annular clamping plate component has an opening, and a quick clamp is installed at the bottom opening of the annular clamping plate component; a laser head is detachably placed on the laser fixing seat component; the laser rust removal and cleaning machine is used to provide laser light to the laser head; the driving mechanism is mounted on the annular clamping plate component, the driving mechanism is connected to the annular clamping plate component in a transmission manner, and the driving mechanism drives the laser cleaning fixture to rotate circumferentially along the outer wall of the pipeline.

[0008] Optionally, the laser mounting bracket component includes a baffle, two fixed side plates, four locking seats, and two locking plates; both fixed side plates are fixedly mounted on the baffle, which is mounted on the top of the annular clamping plate component; both ends of the locking plates are fixedly mounted to the two fixed side plates respectively, and the two locking plates are arranged in parallel; every two locking seats are fixedly mounted on one locking plate, and the locking seats are detachably connected to the laser head; a laser passage through the middle of the baffle is provided, through which the pulsed laser and continuous laser output from the laser head pass through the laser passage and irradiate the outer wall of the pipe;

[0009] The laser mounting bracket also includes a cable fixing plate, a cable fixing clamp, and a fan. The cable fixing plate is fixedly installed on the fixed side plate. One end of the cable fixing clamp is fixedly installed on the cable fixing plate, and the other end of the cable fixing clamp is equipped with an open clamp for clamping and limiting the cable and cooling water pipe. The fan is fixedly installed between the two fixed side plates, and the gas outlet of the fan faces the laser passage of the baffle.

[0010] Optionally, the annular clamping plate component includes two annular assemblies, the upper end of each annular assembly being rotatably mounted to the bottom of the laser fixing base component, and the lower ends of the two annular assemblies being open. The quick clamp is mounted on the lower ends of the two annular assemblies; after locking, the quick clamp closes the lower openings of the two annular assemblies, and the two annular assemblies form a circular frame structure; a mounting plate is fixedly mounted on the annular assembly, and the drive mechanism is fixedly mounted on the mounting plate.

[0011] Optionally, the annular assembly includes two annular plates, multiple driven wheel shafts, multiple driven wheels, and multiple bearing rings. The two ends of the driven wheel shafts are fixedly connected to the two annular plates respectively. The bearing rings are fitted onto the outer side walls of the driven wheel shafts. The driven wheels are fitted onto the bearing rings, and the driven wheels are rotatably connected to the driven wheel shafts through the bearing rings.

[0012] Optionally, the drive mechanism includes a drive motor and a drive wheel; the output shaft of the drive motor is connected to the drive wheel for transmission, and the drive motor drives the drive wheel to rotate; after the quick clamp locks, the drive wheel contacts the outer wall of the pipe.

[0013] Optionally, a braking assembly is installed on one side of the laser mounting bracket, the braking assembly being used to prevent the laser cleaning fixture from rotating on the pipe.

[0014] Optionally, the annular clamping plate component is provided with a speed measuring wheel, which is electrically connected to an encoder and is used to monitor the rotational speed of the laser cleaning fixture relative to the pipeline.

[0015] Optionally, the laser rust removal and cleaning machine includes a housing, a cabinet air conditioner, a chiller, a fixture control box, a laser control screen, a laser, and a controller; the cabinet air conditioner is installed on one side of the housing and is used to provide a constant temperature environment inside the housing; the chiller is used to provide circulating cooling water for the laser and the laser head; the chiller, laser, and controller are all installed inside the housing; the fixture control box and laser control screen are all installed on the outer wall of the housing; the cabinet air conditioner, chiller, fixture control box, laser control screen, and laser are all electrically connected to the controller; the laser is used to provide laser light to the laser head.

[0016] Optionally, a laser head mount is installed on the top of the housing, the laser head mount being used to hold the laser head.

[0017] Optionally, there are two laser rust removal and cleaning machines, and the two laser rust removal and cleaning machines are a continuous laser rust removal and cleaning machine and a pulsed laser rust removal and cleaning machine, respectively; the laser in the continuous laser rust removal and cleaning machine is a continuous laser, and the laser in the pulsed laser rust removal and cleaning machine is a pulsed laser.

[0018] (III) Beneficial Effects

[0019] This utility model provides a laser rust removal device for pipelines before welding, which has the following beneficial effects:

[0020] 1. This invention employs laser rust removal technology, enabling efficient rust removal and precise control of surface roughness. The pulsed and continuous laser outputs from the laser head efficiently remove rust from the pipe surface. Simultaneously, by precisely controlling the laser parameters and rust removal process, the surface roughness of the pipe can be kept at a low level, meeting the requirements for weld formation and quality control during subsequent welding. Furthermore, this equipment improves surface cleanliness, effectively reducing welding defects such as porosity and slag inclusions. In addition, the smooth surface facilitates the application of anti-corrosion coatings, allowing the coating to adhere more evenly to the pipe surface, thereby effectively improving the anti-corrosion effect. Compared with existing technologies, this invention not only improves rust removal efficiency but also significantly improves the surface quality after rust removal, providing better conditions for subsequent pipe welding and anti-corrosion repair.

[0021] 2. This utility model employs laser rust removal technology, which is environmentally friendly, pollution-free, and cost-effective in practical implementation. Compared to traditional sandblasting methods, the laser rust removal equipment of this utility model does not generate a large amount of dust during the rust removal process, avoiding environmental pollution and harm to the health of operators, and eliminating the need for additional protective and recycling measures. Furthermore, laser rust removal does not require the use of abrasive materials, significantly reducing material and equipment maintenance costs. In addition, the laser rust removal equipment is simple to operate and easy to maintain, further reducing operating costs. In summary, this utility model achieves efficient rust removal while possessing significant environmental advantages and cost-effectiveness.

[0022] 3. This utility model employs a laser cleaning fixture. Through the coordinated arrangement of an annular clamping plate component, a laser fixing base component, and a drive mechanism, the equipment can be quickly installed on the outer wall of a pipeline. The annular clamping plate component can be easily clamped and fixed to the outer wall of the pipeline using quick-clamping clamps. The laser fixing base component secures the laser head to the annular clamping plate component. The drive mechanism drives the entire laser cleaning fixture to rotate. During the rotation of the fixture, the laser head moves circumferentially to perform laser rust removal and cleaning operations on the outer wall of the pipeline. Compared with existing technologies, the fixing and adjustment methods of this laser cleaning fixture are simpler, facilitating rapid installation and adjustment. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of a laser rust removal device for pipeline welding according to the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the laser rust removal and cleaning machine in a pre-welding laser rust removal equipment for pipelines according to this utility model;

[0026] Figure 3 This is a three-dimensional structural diagram of the housing of the laser rust removal and cleaning machine in a pre-welding laser rust removal equipment for pipelines according to this utility model;

[0027] Figure 4 This is a three-dimensional structural diagram of the laser cleaning fixture in a pre-welding laser rust removal equipment for pipelines according to this utility model.

[0028] Figure 5 This is a three-dimensional structural diagram of the annular clamping plate component in a laser rust removal device for pipeline welding according to the present invention;

[0029] Figure 6 This is a schematic diagram of the connection structure of the cooling pipe in a laser rust removal device for pipeline welding according to this utility model;

[0030] Figure 7 This is a three-dimensional structural diagram of the drive mechanism in a laser rust removal device for pipeline welding according to the present invention.

[0031] Figure 8 This is a bottom view of the laser structure in a laser rust removal device for pipeline welding according to the present invention;

[0032] Figure 9 This is a three-dimensional structural diagram of a quick clamp in a laser rust removal device for pipeline welding according to the present invention;

[0033] Figure 10 This is an exploded view of the structure of the quick clamp in the laser rust removal equipment for pipeline welding according to this utility model;

[0034] Figure 11 This invention relates to a three-dimensional structural design of the locking rod of a quick clamp in a laser rust removal device for pipeline welding.

[0035] In the diagram: 1. Laser cleaning fixture; 2. Continuous laser rust removal and cleaning machine; 3. Pulsed laser rust removal and cleaning machine; 4. Pipeline; 5. Tri-color light; 6. Cable winding rack; 7. Hook; 8. Water-cooled door; 9. Observation window; 10. Laser door; 11. Laser control panel; 12. Laser head base; 13. Cabinet air conditioner; 14. Laser head; 15. Chiller; 16. Laser; 17. Fixture control box; 18. Fixed side plate; 19. Dual-axis cylinder 20. Brake block; 21. Speed ​​measuring wheel; 22. Protective cover; 23. Lifting lug; 24. Drive motor; 25. Mounting plate; 26. Driven wheel shaft; 27. Annular plate; 28. Quick clamp; 29. ​​Cable clamp; 30. Fan; 31. Connecting plate; 32. Bearing ring; 33. Locking seat; 34. Locking plate; 35. Cable clamping plate; 36. Continuous laser; 37. Continuous head return water pipe; 38. Pulse head inlet water pipe 39. Continuous laser head inlet pipe; 40. Continuous laser head; 41. Pulsed laser inlet pipe; 42. Pulsed laser head return pipe; 43. Pulsed laser head; 44. Pulsed laser return pipe; 45. Arc plate; 46. Drive wheel; 47. Output gear; 48. Pin; 49. Intermediate gear; 50. Drive gear; 56. Focusing lens; 60. Optical path cavity; 61. Front locking block; 62. Rear locking block; 63. Air knife holder 64. Air knife; 65. Main locking component; 66. Secondary locking component; 67. Mounting base; 68. Locking rod; 69. Locking hook; 70. First adjusting nut; 71. Locking shaft; 72. Second adjusting nut; 73. U-shaped rod; 74. Connecting rod; 75. Intermediate shaft; 76. Drive shaft; 77. Gear set; 78. Tension spring; 79. Arc-shaped hole; 80. Pulsed laser; 81. Continuous laser inlet pipe; 82. Continuous laser return pipe. Detailed Implementation

[0036] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying anything.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0038] Please see Figures 1 to 11 This utility model provides a technical solution: a laser rust removal device for pipelines before welding, comprising a pipeline 4. This device is mainly used for laser rust removal and cleaning of the pipeline 4. The device also includes a laser cleaning fixture 1 and a laser rust removal and cleaning machine. The pipeline 4 includes, but is not limited to, oil pipelines, natural gas pipelines, drainage pipelines, etc. Generally, the pipeline 4 refers to a tubular hollow channel used for transporting fluids (such as liquids, gases, slurries, etc.) or specific substances. Therefore, this laser rust removal device is suitable for laser rust removal and cleaning of various pipelines 4 in multiple fields.

[0039] The laser cleaning fixture 1 includes an annular clamping plate component, a laser mounting base component, and a drive mechanism. The laser mounting base component is mounted above the annular clamping plate component, and an opening is provided at the bottom of the annular clamping plate component. A quick-clamping clamp 28 is installed at the bottom opening of the annular clamping plate component. A laser head 14 is detachably mounted on the laser mounting base component. The laser rust removal and cleaning machine is used to provide laser light to the laser head 14. The drive mechanism is mounted on the annular clamping plate component and is drively connected to the annular clamping plate component. The drive mechanism drives the laser cleaning fixture 1 to rotate circumferentially along the outer wall of the pipe 4.

[0040] Specifically, such as Figure 2 and Figure 3 As shown, the laser rust removal and cleaning machine includes a housing, a cabinet air conditioner 13, a chiller 15, a fixture control box 17, a laser control panel 11, a laser 16, and a controller. The cabinet air conditioner 13 is installed on one side of the housing and provides a constant temperature environment inside the housing. The chiller 15 provides circulating cooling water for the laser 16 and laser head 14. The chiller 15, laser 16, and controller are all installed inside the housing. The fixture control box 17 and laser control panel 11 are both installed on the outer wall of the housing. The cabinet air conditioner 13, chiller 15, fixture control box 17, laser control panel 11, and laser 16 are electrically connected to the controller. The laser 16 provides laser light to the laser head 14.

[0041] The cabinet air conditioner 13 provides a constant temperature environment inside the cabinet, ensuring stable operation of the laser equipment within the range of -20℃ to 60℃. The chiller 15 provides circulating cooling water to the laser 16 and laser head 14. The laser 16 provides laser light to the laser head 14. The controller includes, but is not limited to, a programmable logic controller (PLC), a processor, etc., and is equipped with system control programs to achieve intelligent and automatic control of various components in the laser rust removal and cleaning machine. The control principles of the controller will not be elaborated further.

[0042] The specific structure of laser head 14 is as follows Figure 8 As shown, the laser head 14 includes an optical path cavity 60, a focusing lens 56, etc. A front locking block 61 and a rear locking block 62 are respectively provided at the front and rear ends of the optical path cavity 60. An air knife holder 63 is also installed at the bottom of the optical path cavity 60, and an air knife 64 is installed at the bottom of the air knife holder 63. The air inlet of the air knife 64 is connected to an air source, and the air outlet of the air knife 64 sprays high-pressure gas downwards towards the focusing lens 56 to prevent dust from entering the focusing lens 56.

[0043] More specifically, a laser head mount 12 is installed on the top of the housing, which is used to hold the laser head 14.

[0044] The laser head holder 12 on the top of the housing is used to hold the laser head 14. When not in use, the laser head 14 can be detached from the laser cleaning fixture 1 or placed on the laser head holder 12. The specific structure of the laser head holder 12 includes two support plates, each with a locking seat 33 on its top. The laser head 14 is placed by engaging the front locking block 61 and the rear locking block 62 below the laser head 14 with the corresponding locking seat 33.

[0045] More specifically, there are two laser rust removal and cleaning machines, namely, a continuous laser rust removal and cleaning machine 2 and a pulsed laser rust removal and cleaning machine 3. In the continuous laser rust removal and cleaning machine 2, laser 16 is a continuous laser 36, and laser head 14 is a continuous laser head 40. In the pulsed laser rust removal and cleaning machine 3, laser 16 is a pulsed laser 80, and laser head 14 is a pulsed laser head 43.

[0046] The continuous laser rust removal and cleaning machine 2 is used to output continuous laser light. The pulsed laser rust removal and cleaning machine 3 is used to output pulsed laser light. The equipment also includes cooling pipes for circulating cooling water. The cooling pipes for circulating cooling water are as follows... Figure 6 As shown, the two chillers 15 cool the continuous laser 36 and the pulsed laser 80, as well as the continuous laser head 40 and the pulsed laser head 43, respectively. Figure 6As shown, the first chiller 15 is connected to the inlet connector of the pulse laser 80 through the pulse laser inlet pipe 41, to the return connector of the pulse laser 80 through the pulse laser return pipe 44, to the inlet connector of the pulse laser head 43 through the pulse head inlet pipe 38, and to the return connector of the pulse laser head 43 through the pulse head return pipe 42. The circulating cooling water generated by the first chiller 15 cools the pulse laser 80 and the pulse laser head 43 respectively. The second chiller 15 is connected to the inlet connector of the continuous laser 36 via the continuous laser inlet pipe 81, and to the return connector of the continuous laser 36 via the continuous laser return pipe 82; it is also connected to the inlet connector of the continuous laser head 40 via the continuous head inlet pipe 39, and to the return connector of the continuous laser head 40 via the continuous head return pipe 37. The circulating cooling water generated by the second chiller 15 cools the continuous laser 36 and the continuous laser head 40 respectively.

[0047] To facilitate the maintenance and inspection of the chiller 15, a water-cooled door 8 is hinged to one side of the housing. A transparent observation window 9 corresponding to the water level gauge on the chiller 15 is installed on the water-cooled door 8. The water level gauge can be checked through the observation window 9, which makes it easy to quickly understand the remaining amount of cooling water in the chiller 15 so that it can be replenished in a timely manner.

[0048] A laser door 10 corresponding to the laser 16 is hinged to one side of the enclosure. Opening the laser door 10 allows for quick inspection and maintenance of the laser 16.

[0049] The fixture control box 17 is connected (including electrical connection) to the laser cleaning fixture 1. The fixture control box 17 is used to display and adjust the operating status and speed of the laser cleaning fixture 1. The fixture control box 17 may, but is not limited to, employing a programmable logic controller (PLC), a microcontroller, or a microprocessor. The fixture control box 17 internally contains a control system or logic control program to meet the normal control needs of the equipment and to meet the needs of adjusting control parameters. The control principle and control parameters will not be elaborated here. The laser control screen 11 is used to display and adjust the output power of the laser 16, the equipment operating temperature, etc.

[0050] The top of the enclosure is also equipped with a tri-color light 5, which is electrically connected to the controller. The tri-color light 5 is used to indicate the operating status of the equipment.

[0051] The top of the enclosure is also equipped with a cable winding rack 6, which includes four limiting plates in a U-shaped or C-shaped structure. The four limiting plates are arranged in a circular or elliptical array to wind the cable between the laser head 14 and the laser 16, as well as the cooling water pipe between the laser head 14 and the chiller 15, around the four limiting plates for limiting and fixing.

[0052] Four hooks 7 are fixedly installed on the top of the box, and the four hooks 7 are distributed at the four corners of the top of the box, which facilitates the hoisting of the laser rust removal and cleaning machine.

[0053] Specifically, the laser mounting bracket includes a baffle, two fixed side plates 18, four locking seats 33, and two locking plates 34. Both fixed side plates 18 are fixedly mounted on the baffle, which is mounted on top of the annular clamping plate component. The two ends of the locking plates 34 are fixedly mounted to the two fixed side plates 18 respectively, and the two locking plates 34 are arranged parallel to each other. Every two locking seats 33 are fixedly mounted on one locking plate 34, and the locking seats 33 are detachably connected to the laser head 14. A laser passage opening is provided in the middle of the baffle, penetrating its wall. The pulsed laser and continuous laser output from the laser head 14 pass through the laser passage opening and irradiate the outer wall of the pipe 4. The baffle can block splashes, protecting the focusing lens 56 of the laser cleaning head from damage and allowing the laser to operate for extended periods.

[0054] More specifically, the laser mounting bracket also includes a cable fixing plate 35, a cable fixing clamp 29, and a fan 30. The cable fixing plate 35 is fixedly mounted on the fixed side plate 18. One end of the cable fixing clamp 29 is fixedly mounted to the cable fixing plate 35, and the other end of the cable fixing clamp 29 is equipped with an open clamp. The open clamp is used to clamp and limit the cable and cooling water pipe, ensuring that the cable and cooling water pipe between the laser head 14 and the open clamp remain basically stationary, preventing loosening of the interfaces on the laser head 14, which could lead to abnormal temperature or abnormal laser output of the laser head 14. The fan 30 is fixedly mounted between the two fixed side plates 18, with the gas outlet of the fan 30 facing the laser passage of the baffle. The fan 30 blows air onto the baffle and the cleaning area of ​​the pipe 4, ensuring that dust does not re-adhere to the laser cleaning area, maintaining good dust levels at the laser cleaning area, reducing the plasma concentration at the laser cleaning area, and preventing shielding of the laser.

[0055] Specifically, such as Figure 4 and Figure 5 As shown, the annular clamping plate component includes two annular assemblies. The upper end of each annular assembly is rotatably mounted to the bottom of the laser mounting base component. The lower ends of the two annular assemblies are open, and a quick-clamp 28 is mounted on the lower end of the two annular assemblies. After locking, the quick-clamp 28 closes the lower opening of the two annular assemblies, and the two annular assemblies form a circular frame structure. A mounting plate 25 is fixedly mounted on the annular assembly, and the drive mechanism is fixedly mounted on the mounting plate 25.

[0056] More specifically, the annular assembly includes two annular plates 27, multiple driven wheel shafts 26, multiple driven wheels, and multiple bearing rings 32. The two ends of the driven wheel shafts 26 are fixedly connected to the two annular plates 27 respectively. The bearing rings 32 are fitted onto the outer walls of the driven wheel shafts 26, and the driven wheels are fitted onto the bearing rings 32, with the driven wheels rotatably connected to the driven wheel shafts 26 via the bearing rings 32. The two ends of the mounting plate 25 are fixedly connected to the two annular plates 27.

[0057] More specifically, the annular clamping plate component also includes a main structural plate, four connecting plates 31, and multiple lifting lugs 23. The main structural plate is fixedly installed below the baffle, and a laser passage port is also provided on the main structural plate; the main structural plate and the laser passage port on the baffle are vertically aligned and connected, realizing the connection between the laser fixing seat component and the annular clamping plate component. The four connecting plates 31 are respectively fixedly installed at the four corners of the main structural plate, and the upper end of each annular component is rotatably connected to two connecting plates 31. Among them, the upper ends of the two annular plates 27 in the annular components are rotatably connected to the two connecting plates 31 respectively. The lifting lugs 23 are fixedly installed on the upper part of the annular plates 27.

[0058] In a more specific embodiment, the connecting plate 31 is fixedly connected to the main structural plate by multiple bolts, and the connecting plate 31 is rotatably connected to the annular plate 27 by a single bolt. Thus, when the quick clamp 28 is released, the annular plate 27 can rotate relative to the main structural plate, thereby expanding the bottom opening and facilitating the installation of the annular clamping plate component onto the pipe 4.

[0059] Specifically, such as Figure 7 As shown, the drive mechanism includes a drive motor 24 and a drive wheel 46. The output shaft of the drive motor 24 is connected to the drive wheel 46, and the drive motor 24 drives the drive wheel 46 to rotate. After the quick clamp 28 locks in place, the drive wheel 46 contacts the outer wall of the pipe 4. The drive motor 24 is fixedly mounted on the mounting plate 25.

[0060] The drive motor 24 is used to drive the drive wheel 46 to rotate. The drive wheel 46 can rotate around the outer wall of the pipe 4, thereby causing the entire drive mechanism to drive the annular clamping plate component to rotate around the pipe 4.

[0061] More specifically, the drive mechanism also includes a connecting rod 74, an intermediate shaft 75, a drive shaft 76, a gear set 77, and a tension spring 78. The output shaft of the drive motor 24 is connected to the intermediate shaft 75 via the gear set 77, and the intermediate shaft 75 is connected to the drive shaft 76 via gear transmission. An arc-shaped hole 79 is provided on the annular plate 27 of the annular clamping plate component. The two ends of the drive shaft 76 are slidably disposed in the arc-shaped hole 79. The drive wheel 46 is fitted onto the drive shaft 76 and the two are fixedly connected. A tension spring 78 is provided between the drive shaft 76 and the mounting plate 25. Through the tension of the tension spring 78, the drive shaft 76 can slide along the arc-shaped hole 79, thereby ensuring that the drive wheel 46 can always be in close contact with the outer wall of the pipe 4. When the pipe 4 is not round or has weld scars on its surface, the drive wheel 46 can always maintain sufficient driving pressure with the pipe 4. To further improve the reliability of the drive, two sets of drive mechanisms can also be provided to ensure that the annular clamping plate component has power when moving at any point on the surface of the pipe 4. A protective cover 22 is installed on the annular clamping plate component and on the outside of the gear set 77. The protective cover 22 is used to protect the gear set 77 and prevent foreign objects from falling onto the gear set 77 and affecting the normal operation of the gear set 77.

[0062] More specifically, the gear set 77 includes an output gear 47, an intermediate gear 49, and a drive gear 50. The drive gear 50 is fixedly mounted on the output shaft of the drive motor 24. The intermediate gear 49 is fitted onto the outer wall of the intermediate shaft 75 and the two are rotatably connected. The output gear 47 is fitted onto the outer wall of the drive shaft 76 and the two are fixedly connected. The drive mechanism also includes two arc-shaped plates 45. The two ends of the intermediate shaft 75 are coaxially arranged with the centers of the two arc-shaped plates 45, and the two ends of the intermediate shaft 75 pass through the two arc-shaped plates 45, and the intermediate shaft 75 is rotatably connected to the arc-shaped plates 45. The two ends of the intermediate shaft 75 are fixedly mounted to two annular plates 27 in the arc-shaped assembly. The two ends of the drive shaft 76 are rotatably connected to the two arc-shaped plates 45 through bearings. Pins 48 are fixedly mounted on the arc-shaped plates 45. One end of the tension spring 78 hooks onto the pins 48, and the other end of the tension spring 78 hooks onto the mounting plate 25. The arc-shaped hole 79 on the annular clamping plate component is coaxially arranged with the arc-shaped plate 45, that is, the center of the arc-shaped hole 79 is coaxial with the center of the arc-shaped plate 45.

[0063] When the drive motor 24 starts, its output shaft drives the drive gear 50 to rotate. The drive gear 50 then drives the intermediate gear 49, which in turn drives the output gear 47, which in turn drives the drive shaft 76 to rotate. The drive shaft 76 then drives the drive wheel 46 to rotate, and the drive wheel 46 rotates circumferentially along the outer wall of the pipe 4. Due to the tension of the tension spring 78, the two arc-shaped plates 45 rotate partially around the intermediate shaft 75. At this time, the two arc-shaped plates 45 drive the drive shaft 76 to move, and the drive shaft 76 drives the drive wheel 46 to move. This ensures that the drive wheel 46 is always in a state of moving close to the outer wall of the pipe 4, so that the drive wheel 46 always has a certain pressure in contact with the outer wall of the pipe 4.

[0064] Specifically, such as Figure 5 As shown, a brake assembly is installed on one side of the laser mounting bracket, which is used to prevent the laser cleaning fixture 1 from rotating on the pipe 4. A speed measuring wheel 21 is provided on the annular clamping plate component. The speed measuring wheel 21 is rotatably mounted on the annular plate 27. The speed measuring wheel 21 is electrically connected to the encoder and is used to monitor the rotational speed of the laser cleaning fixture 1 relative to the pipe 4.

[0065] The braking assembly includes a dual-axis cylinder 19 and a brake block 20. In actual implementation, an electric cylinder or a servo electric cylinder can also be used to replace the dual-axis cylinder 19. The dual-axis cylinder 19 is fixedly mounted on the fixed side plate 18, and the brake block 20 is fixedly mounted on the output shaft end of the dual-axis cylinder 19. The dual-axis cylinder 19 drives the brake block 20 to move closer to or away from the pipe 4. The brake block 20 is made of materials such as rubber with high friction. The clamp control box 17 is electrically connected to the encoder, the dual-axis cylinder 19, and the drive motor 24.

[0066] When the running speed of the clamp on pipe 4 is abnormal, the speed measuring wheel 21 rotates too fast, the encoder feedback speed is too fast, the control system of the clamp control box 17 controls the dual-axis cylinder 19 to push out and controls the drive motor 24 to stop running, and the brake block 20 is tightly pressed against the surface of pipe 4 to brake.

[0067] Specifically, such as Figure 9 , Figure 10 , Figure 11 As shown, the quick-release clamp 28 can quickly lock and open; its specific structure is as follows. Figures 9 to 11As shown, the device includes a main locking component 65, a secondary locking component 66, a mounting base 67, a locking rod 68, and a locking hook 69. The main locking component 65 has a Z-shaped structure, with one end serving as a handle. A first pin is located at the front end of the handle, and a second pin is located at the front end of the other end. The middle of the main locking component 65 is rotatably connected to one end of the locking rod 68. The secondary locking component 66 has an L-shaped structure, with one end serving as a handle and the other end being hook-shaped. The bent portion of the secondary locking component 66 is rotatably connected to the first pin.

[0068] One end of the mounting base 67 protrudes upward, and a locking hole is provided on the protrusion. The locking hole is used to engage with the hook of the secondary locking member 66 to lock the secondary locking member 66 to the mounting base 67. The other end of the mounting base 67 protrudes upward in the middle to form a hinge seat, which is rotatably connected to the second pin of the main locking member 65. The mounting base 67 is fixedly mounted to the annular plate 27 on one side of the bottom (lower end) opening of a ring assembly by bolts. The locking hook 69 is fixedly mounted to the annular plate 27 on the other side of the bottom (lower end) opening of another ring assembly by bolts.

[0069] The locking rod 68 includes a first adjusting nut 70, a locking shaft 71, a second adjusting nut 72, and a U-shaped rod 73. Both ends of the open end of the U-shaped rod 73 are threaded. The locking shaft 71 is a cylindrical structure with through holes radially provided at both ends. The U-shaped rod 73 is inserted into the through holes. The first adjusting nut 70 and the second adjusting nut 72 are installed on the U-shaped rod 73 on both sides of the locking shaft 71 for fixation. The relative position between the U-shaped rod 73 and the locking shaft 71 can be adjusted by adjusting the position of the first adjusting nut 70 and the second adjusting nut 72, thereby adjusting the distance between the U-shaped rod 73 and the locking hook 69 and adjusting the locking force.

[0070] By hooking the closed end of the U-shaped rod 73 with the locking hook 69, and then pressing the handle of the main locking member 65, the main locking member 65 rotates around the second pin until the locking shaft 71 moves between the second pin and the main plate of the mounting base 67 to complete the locking. Then, by rotating the secondary locking member 66, the hook of the secondary locking member 66 hooks into the locking hole of the mounting base 67 for a secondary locking, preventing the main locking member 65 from loosening and ensuring that the pipeline 4 can be clamped at all times during the operation of the laser cleaning fixture 1. The quick clamp 28 can quickly lock or open the lower openings of the two arc-shaped components.

[0071] In use, first install the laser cleaning fixture 1 on the pipe 4, and then fix the annular clamping plate component to the pipe 4 using the quick clamp 28. Start the laser rust removal and cleaning machine. Then start the drive motor 24 to drive the drive wheel 46 to rotate, thereby causing the laser cleaning fixture 1 to rotate circumferentially along the outer wall of the pipe 4. The laser head 14 outputs pulsed laser and continuous laser on the laser fixing seat component, which irradiates the outer wall of the pipe 4 through the laser port, thereby achieving rust removal and cleaning of the surface of the pipe 4.

[0072] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laser rust removal device for pipelines before welding, comprising a pipeline (4), characterized in that, It also includes laser cleaning fixtures (1) and laser rust removal and cleaning machines; The laser cleaning fixture (1) includes an annular clamping plate component, a laser fixing seat component, and a driving mechanism; the laser fixing seat component is installed above the annular clamping plate component, the bottom of the annular clamping plate component is provided with an opening, and a quick clamp (28) is installed at the bottom opening of the annular clamping plate component; a laser head (14) is detachably placed on the laser fixing seat component; the driving mechanism is installed on the annular clamping plate component, the driving mechanism is connected to the annular clamping plate component in a transmission manner, and the driving mechanism drives the laser cleaning fixture (1) to rotate circumferentially along the outer wall of the pipe (4).

2. The laser rust removal equipment for pipeline welding as described in claim 1, characterized in that: The laser mounting bracket includes a baffle, two fixed side plates (18), four locking seats (33), and two locking plates (34); the two fixed side plates (18) are fixedly mounted on the baffle, which is mounted on the top of the annular clamping plate component; the two ends of the locking plates (34) are fixedly mounted to the two fixed side plates (18) respectively, and the two locking plates (34) are arranged in parallel; every two locking seats (33) are fixedly mounted on one locking plate (34), and the locking seats (33) are detachably connected to the laser head (14); the baffle has a laser passage through its wall in the middle, and the pulsed laser and continuous laser output by the laser head (14) pass through the laser passage and irradiate the outer wall of the pipe (4).

3. The pipeline pre-welding laser rust removal equipment according to claim 1, characterized in that: The annular clamping plate component includes two annular assemblies. The upper end of each annular assembly is rotatably mounted to the bottom of the laser fixing base component. The lower ends of the two annular assemblies are open. The quick clamp (28) is installed at the lower ends of the two annular assemblies. After locking, the quick clamp (28) closes the lower openings of the two annular assemblies, and the two annular assemblies form a circular frame structure. An mounting plate (25) is fixedly installed on the annular assembly, and the driving mechanism is fixedly installed on the mounting plate (25).

4. The laser rust removal equipment for pipeline welding as described in claim 3, characterized in that: The annular assembly includes two annular plates (27), multiple driven wheel shafts (26), multiple driven wheels, and multiple bearing rings (32). The two ends of the driven wheel shafts (26) are fixedly connected to the two annular plates (27) respectively. The bearing rings (32) are fitted on the outer side wall of the driven wheel shafts (26). The driven wheels are fitted on the bearing rings (32), and the driven wheels are rotatably connected to the driven wheel shafts (26) through the bearing rings (32).

5. The laser rust removal equipment for pipelines before welding according to claim 1, characterized in that: The drive mechanism includes a drive motor (24) and a drive wheel (46); the output shaft of the drive motor (24) is connected to the drive wheel (46) for transmission, and the drive motor (24) drives the drive wheel (46) to rotate; after the quick clamp (28) locks, the drive wheel (46) contacts the outer wall of the pipe (4).

6. The laser rust removal equipment for pipeline welding as described in claim 1, characterized in that: A brake assembly is installed on one side of the laser mounting bracket component.

7. The laser rust removal equipment for pipeline welding as described in claim 1, characterized in that: The annular clamping plate component is provided with a speed measuring wheel (21), which is electrically connected to the encoder.

8. The laser rust removal equipment for pipeline welding according to claim 1, characterized in that: The laser rust removal and cleaning machine includes a housing, a cabinet air conditioner (13), a chiller (15), a fixture control box (17), a laser control screen (11), a laser (16), and a controller; the cabinet air conditioner (13) is installed on one side of the housing; the chiller (15), the laser (16), and the controller are all installed inside the housing; the fixture control box (17) and the laser control screen (11) are all installed on the outer wall of the housing; the cabinet air conditioner (13), the chiller (15), the fixture control box (17), the laser control screen (11), and the laser (16) are electrically connected to the controller.

9. A laser rust removal device for pipelines before welding according to claim 8, characterized in that: A laser head mount (12) is installed on the top of the housing.

10. A laser rust removal device for pipelines before welding according to claim 8, characterized in that: There are two laser rust removal and cleaning machines, namely a continuous laser rust removal and cleaning machine (2) and a pulsed laser rust removal and cleaning machine (3); the laser (16) in the continuous laser rust removal and cleaning machine (2) is a continuous laser, and the laser (16) in the pulsed laser rust removal and cleaning machine (3) is a pulsed laser.

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