Laser cladding equipment for inner wall of pipeline

Abstract

The invention relates to laser cladding equipment for the inner wall of a pipeline, and belongs to the technical field of laser cladding, the laser cladding equipment comprises a rotating mechanism, a cladding spray head and a transmission cylinder, the rotating mechanism is provided with a box body, the rotating mechanism is arranged on the box body, and one side of the box body is fixedly provided with a base; a clamping assembly capable of clamping the conveying cylinder and a driving assembly capable of driving the clamping assembly to move are arranged on the base, the cladding spray head is fixedly connected with the end, close to the box body, of the conveying cylinder, the end, close to the cladding spray head, of the conveying cylinder is sleeved with an auxiliary pipe, the auxiliary pipe is fixedly connected with the conveying cylinder, and the auxiliary pipe is sleeved with a rotating pipe; the rotating pipe is rotatably connected with the auxiliary pipe, a plurality of supporting rods are hinged to the outer side wall of the rotating pipe and evenly distributed along the circumferential outer side wall of the rotating pipe, the ends, away from the rotating pipe, of the supporting rods are rotatably connected with rolling wheels, and the auxiliary pipe is provided with an overturning assembly capable of driving the supporting rods to overturn. The laser cladding equipment has the effect of improving cladding of the laser cladding equipment.

Description

Technical Field

[0001] The present application relates to the technical field of laser cladding, and in particular to a laser cladding device for the inner wall of a pipeline. Background Art

[0002] Laser cladding is an advanced surface modification technology that uses a high-energy laser beam to melt metal powder or wire, forming a metallurgically bonded, reinforced coating on the substrate surface. It is primarily used to repair worn / corroded components, enhance surface properties, and create customized functional coatings. Its high precision and low thermal impact significantly extend workpiece life and reduce replacement costs, making it widely used in the machinery manufacturing, energy, automotive, and remanufacturing sectors.

[0003] Prior art laser cladding of corrosion-resistant and wear-resistant coatings on pipeline interiors typically utilizes an axially inserted cladding system. This system uses a cladding nozzle, integrating a laser optical path, powder feed channel, and gas shield, mounted on the front end of a rigid conveyor tube. The other end of the tube, driven by a robotic arm or clamping device, advances along the pipeline axis to the target area. Simultaneously, a rotating mechanism drives the pipeline in circumferential rotation, allowing the nozzle to scan and clad the inner wall layer by layer in a relative spiral motion. This approach achieves uniform coverage around the entire circumference through the coordinated motion of axial feed and pipeline rotation.

[0004] Regarding the aforementioned related technologies, when the pipeline is long, the length of the transfer tube needs to be increased accordingly to accommodate the operation. However, because the robotic arm or clamping device only supports one end of the transfer tube, when the transfer tube is too long, the overhanging portion is prone to flexure and deformation due to its own weight. This deformation causes fluctuations in the working distance between the cladding nozzle and the inner wall of the pipeline, ultimately resulting in quality issues such as uneven cladding coating thickness and reduced tissue density, resulting in poor cladding results for laser cladding equipment. Summary of the Invention

[0005] In order to improve the cladding effect of laser cladding equipment, the present application provides a laser cladding equipment for the inner wall of a pipeline.

[0006] The laser cladding equipment for the inner wall of a pipe provided in this application adopts the following technical solutions: A laser cladding device for the inner wall of a pipeline comprises a rotating mechanism, a cladding nozzle, and a transmission cylinder. A box is provided at the rotating mechanism, and the rotating mechanism is arranged on the box. A base is fixedly provided on one side of the box. A clamping assembly capable of clamping the transmission cylinder and a driving assembly capable of driving the clamping assembly to move are provided on the base. The cladding nozzle and the transmission cylinder are fixedly connected at one end close to the box. An auxiliary tube is provided on the outer sleeve of the end of the transmission cylinder close to the cladding nozzle. The auxiliary tube and the transmission cylinder are fixedly connected. A rotating tube is provided on the outer sleeve of the auxiliary tube. The rotating tube and the auxiliary tube are rotatably connected. A plurality of support rods are hinged on the outer wall of the rotating tube. The plurality of support rods are evenly distributed along the circumferential outer wall of the rotating tube. The support rod is rotatably connected to a roller at one end away from the rotating tube. A flipping assembly capable of driving the support rod to flip is provided on the auxiliary tube.

[0007] By adopting the above technical solution, during the cladding operation, the positioning and installation of the pipeline are completed first. Subsequently, the drive assembly pushes the clamping assembly to move toward the pipeline, clamping and pulling the transmission tube, cladding nozzle, and auxiliary tube into the pipeline synchronously. When the auxiliary tube reaches the predetermined position inside the pipeline, the flipping assembly is activated, driving the support rod and the rollers at its ends to complete the flipping action, so that the rollers form a stable contact with the inner wall of the pipeline. Through the coordinated adjustment of multiple sets of support rods, it is ensured that the central axis of the transmission tube coincides with the central axis of the pipeline, and at the same time, the end of the transmission tube is effectively prevented from being skewed. During the subsequent advancement process, the transmission tube continues to move inward, and the rollers roll smoothly along the inner wall of the pipeline. After the cladding nozzle reaches the preset working position, the rotating mechanism drives the pipeline to rotate, driving the rollers to perform circular motion, and then the rotating tube is rotated synchronously through the support rod transmission. During the operation, the drive assembly controls the clamping assembly to drive the transmission tube to move outward at a uniform speed, cooperating with the rotation of the pipeline to complete the cladding processing of the entire inner wall. The combined support mechanism of support rods and rollers ensures the rigid support of the transmission tube throughout the entire process, making it less likely to bend and deform. At the same time, the distance between the cladding nozzle and the inner wall of the pipe is less likely to change, thereby improving the cladding effect of the laser cladding equipment.

[0008] Optionally, the flipping assembly includes a rotating plate and a connecting rod, the rotating plate is sleeved outside the auxiliary tube, and multiple connecting rods are provided, one end of each connecting rod is hinged to a side wall of the rotating plate facing the support rod, and the multiple connecting rods are evenly distributed, and one end of the connecting rod away from the rotating plate and one end of the support rod away from the rotating tube are hinged and correspond one to one, and a pushing assembly that can push the rotating plate to move is provided on the auxiliary tube.

[0009] By adopting the above technical solution, after the auxiliary tube moves to the set position, the pushing assembly pushes the rotating plate toward the hinged end of the support rod, the rotating plate drives the connecting rod to move, the connecting rod drives the support rod to move away from the auxiliary tube, the support rod drives the roller to move, and the roller abuts against the inner wall of the pipe, so that the flipping assembly realizes the function of driving the support rod to flip.

[0010] Optionally, the pushing assembly includes a first electric cylinder and a push plate, the first electric cylinder is fixedly connected to the outer wall of the auxiliary tube, the push plate is sleeved outside the auxiliary tube, the output shaft of the first electric cylinder is fixedly connected to the push plate, the push plate is located between the rotating plate and the first electric cylinder, and the side of the push plate facing the rotating plate is rotatably connected to the rotating plate.

[0011] By adopting the above technical solution, the first electric cylinder is started, the first electric cylinder drives the push plate to move, and the push plate drives the rotating plate to move, so that the pushing component realizes the function of pushing the rotating plate to move.

[0012] Optionally, the upper surface of the base is slidably connected to a support platform, and the clamping assembly is arranged on the support platform. The clamping assembly includes a second electric cylinder and a clamping plate. There are two second electric cylinders and two clamping plates, and they correspond one to one. The two second electric cylinders are fixed on the upper surface of the support platform, and the output shaft of the second electric cylinder is fixedly connected to the clamping plate. The two clamping plates are located between the two second electric cylinders.

[0013] By adopting the above technical solution, after the end of the transmission tube is placed on the upper surface of the support platform, the second electric cylinder is started, and the second electric cylinder drives the clamping plate to move toward the direction of the transmission tube. The two clamping plates complete the clamping and fixing of the transmission tube, so that the clamping assembly realizes the function of clamping and fixing the transmission tube.

[0014] Optionally, a movable groove is opened on the upper surface of the base along its own length direction, and the base is slidably connected to a movable block in the movable groove along the length direction of the movable groove. The upper surface of the movable block is fixedly connected to the support platform, and the driving assembly includes a motor and a first screw. The motor and one end of the base are fixedly connected, and the first screw is arranged in the movable groove along the length direction of the movable groove. The opposite ends of the first screw are respectively rotatably connected to the opposite side walls of the movable groove, the output shaft of the motor and one end of the first screw are fixedly connected, the first screw passes through the movable block, and the first screw and the movable block are threadedly connected.

[0015] By adopting the above technical solution, the motor is started, and the motor drives the first screw to rotate. Under the guidance of the movable groove, the first screw drives the movable block to move along the length direction of the movable groove. The movable block drives the support platform to move, and the support platform drives the clamping assembly to move, thereby realizing the function of driving the clamping assembly to move.

[0016] Optionally, a slide is fixedly provided on one side of the upper surface of the base, the length direction of the slide is perpendicular to the length direction of the base, and a skateboard is connected to the upper surface of the slide in a sliding manner along its own length direction. A first moving component is provided on the slide to drive the skateboard to move along the length direction of the slide, and a support seat capable of supporting the transmission cylinder is provided above the skateboard, and a second moving component capable of driving the support seat to move in the vertical direction is provided on the skateboard.

[0017] By adopting the above technical solution, when clamping and fixing the transmission cylinder, it is first overlapped on the support seat and the support table, which provide initial support. Subsequently, the clamping assembly clamps and fixes the transmission cylinder. When the transmission cylinder begins to move toward the pipeline, the second moving assembly is first activated, driving the support seat to descend and disengage it from the transmission cylinder. After the support seat is lowered to the set height, the first moving assembly drives the slide toward the slide table, driving the support seat to move synchronously, preventing the slide and support seat from interfering with the movement of the support table. The provision of the support seat provides convenient clamping of the transmission cylinder.

[0018] Optionally, a sliding groove is opened on the upper surface of the slide along its own length direction, and the slide is slidably connected to a slider in the sliding groove, and the upper surface of the slider is fixedly connected to the slide plate. The first moving component includes a second screw and a first gear, the second screw is arranged in the sliding groove, one end of the second screw is rotatably connected to a side wall of the sliding groove, and the other end of the second screw passes through the slide and is rotatably connected to the slide, the length direction of the second screw is parallel to the length direction of the slide, the first gear and the second screw are fixedly connected at one end outside the slide, and a first rack is fixed on one side of the support seat, the length direction of the first rack is parallel to the length direction of the base, and the first rack and the first gear are meshed and matched.

[0019] By adopting the above technical solution, during the process of the support platform moving toward the pipeline, the support platform drives the first rack to move. After the support seat is lowered to the set height, the first rack and the first gear are engaged, and under the guidance of the first rack, the first gear rotates, and the first gear drives the second screw to rotate. Under the guidance of the slide groove, the second screw drives the slider to move, the slider drives the slide to move, and the slide drives the support seat to move, so that the first moving component realizes the function of driving the slide to move.

[0020] Optionally, the second moving component includes a threaded sleeve and a third screw, and two of the threaded sleeve and the third screw are provided and correspond one to one. The threaded sleeve is vertically arranged, and the bottom end of the threaded sleeve is rotatably connected to the upper surface of the slide, one end of the third screw is threadedly connected to the threaded sleeve, and the upper end of the third screw is fixedly connected to the support seat. A second gear is fixed on one of the two threaded sleeves, and a second rack is fixed on one side of the support platform. The second rack and the second gear are meshed and matched, and a linkage component for linking the two threaded sleeves is provided at the slide.

[0021] By adopting the above technical solution, in the process of the support platform moving toward the pipeline, the support platform drives the second rack to move. In the process of the movement of the second rack, the second rack first engages with the second gear and drives the second gear to rotate. The second gear drives the threaded sleeve connected to it to rotate. Under the transmission of the linkage assembly, the two threaded sleeves rotate synchronously. Under the guidance of the support seat, the threaded sleeve drives the third screw to move downward in the vertical direction, and the third screw drives the support seat to move. After the support seat moves to the set height, the second gear and the second rack are disengaged, and then the first moving assembly drives the slide to move, so that the second moving assembly realizes the function of driving the support seat to move.

[0022] Optionally, the linkage assembly includes a third gear and a fourth gear, the third gear and the fourth gear are respectively fixed on two threaded sleeves, the third gear and the fourth gear are meshed, and the third gear and the second gear are on the same threaded sleeve.

[0023] By adopting the above technical solution, during the rotation of the threaded sleeve connected to the second gear, the threaded sleeve drives the third gear to rotate, the third gear drives the fourth gear to rotate, and the fourth gear drives the threaded sleeve connected to it to rotate. At the same time, the movement directions of the two third screws are the same, so that the linkage assembly realizes the linkage of the two threaded sleeves.

[0024] Optionally, displacement grooves are provided on opposite sides of the upper surface of the base plate along its own length direction, the base plate is slidably connected to a displacement block in the displacement groove, an auxiliary platform is provided on the upper surface of the base, and the upper surface of the displacement block is fixedly connected to the auxiliary platform.

[0025] By adopting the above technical solution, when placing the pipeline, first place the pipeline on the auxiliary table, then push the auxiliary table, the auxiliary table drives the pipeline to move toward the box body, and the rotating mechanism completes the clamping and fixing of the pipeline. During the cladding operation, the rotating mechanism drives the pipeline to rotate. The setting of the auxiliary table provides convenience for the positioning and installation of the pipeline.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. After the auxiliary tube enters the pipeline, the flip assembly drives the support rod to flip away from the auxiliary tube. The support rod drives the roller to move, and the roller abuts against the inner wall of the pipeline. Through the coordinated action of multiple support rods, the central axis of the transmission tube and the central axis of the pipeline coincide. At the same time, the support rod supports the end of the transmission tube away from the clamping assembly, making it less likely for the transmission tube to bend and the distance between the cladding nozzle and the inner wall of the pipeline to change, thereby improving the cladding effect of the laser cladding equipment; 2. The setting of the support seat provides convenience for the positioning and installation of the transmission cylinder; 3. The setting of the auxiliary table provides convenience for the positioning and installation of pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of a laser cladding device for the inner wall of a pipeline according to an embodiment of the present application; Figure 2 This is a cross-sectional view of the structure of the first moving component in the embodiment of the present application; Figure 3 It is a structural diagram of the pushing component in the embodiment of the present application.

[0028] In the figure, 1. Rotating mechanism; 11. Cladding nozzle; 12. Box; 13. Support platform; 131. First rack; 132. Second rack; 2. Transmission cylinder; 3. Base; 31. Moving groove; 32. Moving block; 33. Displacement groove; 34. Displacement block; 35. Auxiliary platform; 4. Clamping assembly; 41. Second electric cylinder; 42. Clamping plate; 5. Driving assembly; 51. Motor; 52. First screw; 6. Auxiliary tube; 61. Rotating tube; 62. Support rod; 63. Roller ;64. Flip assembly;641. Rotating plate;642. Connecting rod;65. Pushing assembly;651. First electric cylinder;652. Pushing plate;7. Slide;71. Slide plate;72. Support seat;73. Slide groove;74. Slider;75. Second gear;76. Linkage assembly;761. Third gear;762. Fourth gear;8. First moving assembly;81. Second screw;82. First gear;9. Second moving assembly;91. Threaded sleeve;92. Third screw. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0030] An embodiment of the present application discloses a laser cladding device for the inner wall of a pipeline.

[0031] refer to Figure 1 A laser cladding device for the inner wall of a pipeline includes a box body 12, a base 3 is provided on one side of the box body 12, a support platform 13 and a support seat 72 are provided above the base 3, the support seat 72 is between the support platform 13 and the box body 12, and two auxiliary platforms 35 are provided between the support seat 72 and the box body 12. The two auxiliary platforms 35 are parallel to each other, and a transmission cylinder 2 is provided above the support seat 72. The length direction of the transmission cylinder 2 is parallel to the length direction of the base 3.

[0032] refer to Figure 1 and Figure 2 A movable groove 31 is provided on the upper surface of the base 3 along its own length direction. The base 3 is slidably connected to a movable block 32 in the movable groove 31. The upper surface of the movable block 32 is fixedly connected to the support platform 13. The base 3 is provided with a driving component 5 that can drive the support platform 13 to move along the length direction of the movable groove 31.

[0033] The driving assembly 5 includes a motor 51 and a first screw 52. The motor 51 is fixedly connected to one end of the base 3 away from the box body 12. The first screw 52 is arranged in the movable groove 31. The length direction of the first screw 52 is parallel to the length direction of the movable groove 31. The opposite ends of the first screw 52 are respectively rotatably connected to the opposite side walls of the movable groove 31. The output shaft of the motor 51 is fixedly connected to one end of the first screw 52. The first screw 52 passes through the movable block 32 and is threadedly connected to the movable block 32.

[0034] Start the motor 51, the motor 51 drives the first screw 52 to rotate, and under the guidance of the moving groove 31, the first screw 52 drives the moving block 32 to move along the length direction of the moving groove 31, and the moving block 32 drives the support platform 13 to move.

[0035] refer to Figure 1 and Figure 2 A clamping assembly 4 capable of clamping and fixing the end of the transmission cylinder 2 is provided on the upper surface of the support platform 13. The clamping assembly 4 includes a second electric cylinder 41 and a clamping plate 42. There are two second electric cylinders 41 and two clamping plates 42, which correspond to each other. The two second electric cylinders 41 are respectively fixed at the opposite ends of the upper surface of the support platform 13. The clamping plate 42 is fixedly connected to the output shaft of the second electric cylinder 41. The two clamping plates 42 are located between the two second electric cylinders 41, and the clamping plate 42 is arc-shaped.

[0036] After the end of the transmission cylinder 2 is placed on the upper surface of the support platform 13, the second electric cylinder 41 is started, and the second electric cylinder 41 drives the clamping plate 42 to move toward the transmission cylinder 2, and the clamping plates 42 on both sides complete the clamping and fixing of the end of the transmission cylinder 2.

[0037] refer to Figure 1 and Figure 2 A slide 7 is fixedly provided on one side of the base 3, and the length direction of the slide 7 is perpendicular to the length direction of the base 3. A slide groove 73 is opened on the upper surface of the slide 7 along its own length direction, and the slide 7 is slidably connected with a slider 74 in the slide groove 73. A slide plate 71 is provided on the upper surface of the slide 7, and the slide plate 71 is arranged horizontally. The upper surface of the slider 74 is fixedly connected to the lower surface of one end of the slide plate 71. A first moving component 8 is provided at the slide 7, which can drive the slide plate 71 to move along the length direction of the slide 7. A support seat 72 is provided above the slide plate 71, and the support seat 72 is arranged vertically. The upper surface of the support seat 72 is an arc-shaped concave surface, and a ball bearing is provided in the arc-shaped concave surface of the support seat 72. A second moving component 9 is provided on the slide plate 71, which can drive the support seat 72 to move in the vertical direction.

[0038] The first moving component 8 includes a second screw 81 and a first gear 82. The second screw 81 is arranged in the slide groove 73. The length direction of the second screw 81 is parallel to the length direction of the slide groove 73. One end of the second screw 81 is rotatably connected to a side wall of the slide groove 73. The other end of the second screw 81 passes through the slide 7 and is rotatably connected to the slide 7. The first gear 82 and the second screw 81 are fixedly connected at one end outside the slide 7. A first rack 131 is fixedly provided on the side of the support platform 13 facing the slide 7. The length direction of the first rack 131 is parallel to the length direction of the base 3. The first rack 131 is meshed with the first gear 82.

[0039] The second moving component 9 includes a threaded sleeve 91 and a third screw 92. There are two threaded sleeves 91 and two third screws 92, which correspond to each other. The threaded sleeve 91 is vertically arranged, and the bottom ends of the two threaded sleeves 91 are rotatably connected to the opposite ends of the upper surface of the slide 71. One end of the third screw 92 is threadedly connected to the threaded sleeve 91, and the upper end of the third screw 92 is fixedly connected to the support seat 72. A second gear 75 is fixedly provided on one of the two threaded sleeves 91, and a second rack 132 is fixedly provided on one side wall of the support platform 13. The length direction of the second rack 132 is parallel to the length direction of the first rack 131. The second rack 132 is meshed with the second gear 75. A linkage component 76 for linking the two threaded sleeves 91 is provided at the slide 71.

[0040] The linkage assembly 76 includes a third gear 761 and a fourth gear 762 . The third gear 761 and the fourth gear 762 are fixedly connected to the two threaded sleeves 91 respectively. The third gear 761 and the fourth gear 762 are engaged with each other. The third gear 761 is arranged directly below the second gear 75 .

[0041] When the transmission drum 2 is placed, the transmission drum 2 is first placed above the support platform 13 and the support seat 72. After the clamping assembly 4 clamps and fixes the end of the transmission drum 2, the support platform 13 moves toward the box body 12, and the support platform 13 drives the first rack 131 and the second rack 132 to move. The second rack 132 first engages with the second gear 75 and drives the second gear 75 to rotate. The second gear 75 drives the threaded sleeve 91 connected thereto to rotate. The threaded sleeve 91 is driven by the transmission function of the third gear 761 and the fourth gear 762. The two threaded sleeves 91 rotate synchronously. Under the guidance of the support seat 72, the threaded sleeve 91 drives the third screw 92 to move downward in the vertical direction. The third screw 92 drives the support seat 72 to move downward. The support seat 72 and The transmission cylinder 2 disengages, and after the support seat 72 moves to the set height, the second rack 132 and the second gear 75 disengage, and then the first rack 131 and the first gear 82 engage, and the first rack 131 drives the first gear 82 to rotate, and the first gear 82 drives the first screw 52 to rotate. Under the guidance of the slide groove 73, the first screw 52 drives the slider 74 to move, and the slider 74 drives the slide plate 71 to move, and the slide plate 71 drives the support seat 72 to move. After the slide plate 71 moves to the set position, the first rack 131 and the first gear 82 disengage, and at the same time, the slide plate 71 and the support seat 72 are not easy to affect the movement of the support platform 13. The setting of the ball reduces the friction between the transmission cylinder 2 and the support seat 72, so that the transmission cylinder 2 is not easily damaged by wear.

[0042] refer to Figure 1 and Figure 2 , displacement grooves 33 are opened on the opposite sides of the upper surface of the base 3 along its own length direction, and the base 3 is slidably connected to two displacement blocks 34 in the displacement groove 33. The two displacement blocks 34 are arranged in sequence along the length direction of the displacement groove 33. The two displacement blocks 34 in the displacement groove 33 are respectively fixedly connected to the ends of the two auxiliary platforms 35. The upper surface of the auxiliary platform 35 is an arc-shaped concave surface, and a roller is provided in the arc-shaped concave surface of the auxiliary platform 35. A rotating mechanism 1 that can drive the tube body to rotate is provided on the box body 12.

[0043] When installing the pipeline, first overlap the pipeline on the two auxiliary platforms 35, then slide the auxiliary platforms 35, and the auxiliary platforms 35 drive the pipeline to move. After the pipeline end moves to the set position, the rotating mechanism 1 clamps the pipeline end and drives the pipeline to rotate.

[0044] refer to Figure 1 、 Figure 2 and Figure 3A cladding nozzle 11 is fixed to the end of the transmission cylinder 2 away from the support platform 13, and an auxiliary tube 6 is provided on the outer sleeve of the end of the transmission cylinder 2 close to the box body 12. The auxiliary tube 6 and the transmission cylinder 2 are bolted together, and a rotating tube 61 is provided on the outer sleeve of the auxiliary tube 6. The rotating tube 61 and the auxiliary tube 6 are rotatably connected. Three support rods 62 are hinged on the outer wall of the rotating tube 61. The three support rods 62 are evenly distributed along the circumferential outer wall of the rotating tube 61. The end of the support rod 62 away from the rotating tube 61 is rotatably connected to a roller 63, and a flipping component 64 that can drive the support rod 62 to flip is provided on the auxiliary tube 6.

[0045] The flipping assembly 64 includes a rotating plate 641 and a connecting rod 642. The rotating plate 641 is sleeved on the outside of the auxiliary tube 6. There are three connecting rods 642. One end of the three connecting rods 642 is hinged to one side of the rotating plate 641. The end of the connecting rod 642 away from the rotating plate 641 is hinged to the end of the support rod 62 close to the roller 63 and corresponds one to one. A pushing assembly 65 that can push the rotating plate 641 to move is provided on the side of the rotating plate 641 away from the support rod 62.

[0046] The pushing assembly 65 includes a first electric cylinder 651 and a push plate 652. The first electric cylinder 651 is fixed on the auxiliary tube 6, and the push plate 652 is sleeved outside the auxiliary tube 6. The push plate 652 is located between the first electric cylinder 651 and the rotating plate 641. The side of the push plate 652 facing the rotating plate 641 is rotatably connected to the rotating plate 641.

[0047] When laser cladding operation is performed on the inner wall of the pipeline, after the transmission cylinder 2 drives the auxiliary pipe 6 into the pipeline, the first electric cylinder 651 is started, and the first electric cylinder 651 drives the push plate 652 to move toward the support rod 62, and the push plate 652 pushes the rotating plate 641 to move, and the rotating plate 641 drives the connecting rod 642 to move, and the connecting rod 642 drives the support rod 62 to flip, and the support rod 62 drives the roller 63 to move so that the roller 63 abuts against the inner wall of the pipeline. In the embodiment of the present application, the roller 63 is made of high-temperature resistant rubber material. Then the transmission cylinder 2 continues to move into the pipeline, and the roller 63 rolls along the inner wall of the pipeline. After the cladding nozzle 11 moves to the set position, the rotating mechanism 1 drives the pipeline to rotate, and the pipeline drives the roller 63 to perform a circular motion through friction, and the cladding nozzle 11 performs operation. At the same time, the transmission cylinder 2 slowly moves away from the pipe body, thereby completing the overall cladding operation of the inner wall of the pipeline.

[0048] The implementation principle of a laser cladding device for the inner wall of a pipeline in an embodiment of the present application is as follows: after the pipeline is installed, the clamping component 4 clamps and fixes one end of the transmission cylinder 2, and then under the driving action of the driving component 5, the transmission cylinder 2 drives the auxiliary pipe 6 and the cladding nozzle 11 to move toward the inside of the pipeline. After the auxiliary pipe 6 moves into the pipeline, the pushing component 65 provides power to the flipping component 64, and the flipping component 64 drives the support rod 62 to flip in the direction away from the auxiliary pipe 6, and the support rod 62 drives the roller 63 to move. After the roller 63 abuts the inner wall of the pipeline, the pushing component 65 stops providing power to the flipping component 64. Under the coordinated action of multiple rollers 63 and multiple support rods 62, the end of the transmission cylinder 2 away from the clamping component 4 is not easily deflected, and the distance between the cladding nozzle 11 and the inner wall of the pipeline is not easily changed, thereby improving the cladding effect of the laser cladding equipment.

[0049] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A laser cladding device for the inner wall of a pipeline, comprising a rotating mechanism (1), a cladding nozzle (11), and a transmission cylinder (2), characterized in that: The rotating mechanism (1) is provided with a box (12), the rotating mechanism (1) is provided on the box (12), a base (3) is fixedly provided on one side of the box (12), a clamping assembly (4) capable of clamping the transmission cylinder (2) and a driving assembly (5) capable of driving the clamping assembly (4) to move are provided on the base (3), the cladding nozzle (11) and the transmission cylinder (2) are fixedly connected at one end close to the box (12), and an auxiliary pipe (6) is provided on the outer sleeve of the transmission cylinder (2) close to the cladding nozzle (11), and the auxiliary pipe (6) is provided on the outer sleeve of the transmission cylinder (2) close to the cladding nozzle (11). The auxiliary tube (6) is fixedly connected to the transmission tube (2); a rotating tube (61) is provided on the outer shell of the auxiliary tube (6); the rotating tube (61) and the auxiliary tube (6) are rotatably connected; a plurality of support rods (62) are hingedly connected to the outer wall of the rotating tube (61); the plurality of support rods (62) are evenly distributed along the circumferential outer wall of the rotating tube (61); one end of the support rod (62) away from the rotating tube (61) is rotatably connected to a roller (63); and a flip assembly (64) capable of driving the support rod (62) to flip is provided on the auxiliary tube (6).

2. The laser cladding equipment for the inner wall of a pipeline according to claim 1, characterized in that: The flip assembly (64) includes a rotating plate (641) and a connecting rod (642). The rotating plate (641) is sleeved outside the auxiliary tube (6). A plurality of connecting rods (642) are provided. One end of each of the plurality of connecting rods (642) is hinged to a side wall of the rotating plate (641) facing the support rod (62). The plurality of connecting rods (642) are evenly distributed. One end of the connecting rod (642) away from the rotating plate (641) is hinged to one end of the support rod (62) away from the rotating tube (61) and corresponds one to one. A pushing assembly (65) capable of pushing the rotating plate (641) to move is provided on the auxiliary tube (6).

3. The laser cladding equipment for the inner wall of a pipeline according to claim 2, characterized in that: The pushing assembly (65) includes a first electric cylinder (651) and a push plate (652). The first electric cylinder (651) is fixedly connected to the outer wall of the auxiliary tube (6). The push plate (652) is sleeved outside the auxiliary tube (6). The output shaft of the first electric cylinder (651) is fixedly connected to the push plate (652). The push plate (652) is located between the rotating plate (641) and the first electric cylinder (651). The push plate (652) is rotatably connected to the rotating plate (641) on one side facing the rotating plate (641).

4. The laser cladding equipment for the inner wall of a pipeline according to claim 1, characterized in that: The upper surface of the base (3) is slidably connected to a support platform (13), and the clamping assembly (4) is arranged on the support platform (13). The clamping assembly (4) includes a second electric cylinder (41) and a clamping plate (42). Two second electric cylinders (41) and two clamping plates (42) are provided and correspond to each other. The two second electric cylinders (41) are fixed on the upper surface of the support platform (13), and the output shaft of the second electric cylinder (41) and the clamping plate (42) are fixedly connected. The two clamping plates (42) are located between the two second electric cylinders (41).

5. The laser cladding equipment for the inner wall of a pipeline according to claim 4, characterized in that: The upper surface of the base (3) is provided with a moving groove (31) along its own length direction. The base (3) is slidably connected to a moving block (32) in the moving groove (31) along the length direction of the moving groove (31). The upper surface of the moving block (32) is fixedly connected to the support platform (13). The driving component (5) comprises a motor (51) and a first screw (52). The motor (51) is fixedly connected to one end of the base (3). The first screw (52) is arranged in the moving groove (31) along the length direction of the moving groove (31). The opposite ends of the first screw (52) are respectively rotatably connected to the opposite side walls of the moving groove (31). The output shaft of the motor (51) is fixedly connected to one end of the first screw (52). The first screw (52) passes through the moving block (32). The first screw (52) and the moving block (32) are threadedly connected.

6. The laser cladding equipment for the inner wall of a pipeline according to claim 4, characterized in that: A slide (7) is fixedly provided on one side of the upper surface of the base (3), the length direction of the slide (7) is perpendicular to the length direction of the base (3), the upper surface of the slide (7) is slidably connected with a slide plate (71) along its own length direction, a first moving component (8) is provided on the slide (7) for driving the slide plate (71) to move along the length direction of the slide (7), a support seat (72) capable of supporting the transmission cylinder (2) is provided above the slide plate (71), and a second moving component (9) capable of driving the support seat (72) to move along the vertical direction is provided on the slide plate (71).

7. The laser cladding equipment for the inner wall of a pipeline according to claim 6, characterized in that: The upper surface of the slide (7) is provided with a slide groove (73) along its own length direction. The slide (7) is slidably connected to a slider (74) in the slide groove (73). The upper surface of the slider (74) is fixedly connected to the slide plate (71). The first moving component (8) includes a second screw (81) and a first gear (82). The second screw (81) is arranged in the slide groove (73). One end of the second screw (81) is rotatably connected to a side wall of the slide groove (73). The other end of the second screw (81) passes through the slide (7) and is rotatably connected to the slide (7). The length direction of the second screw (81) is parallel to the length direction of the slide (7). The first gear (82) is fixedly connected to one end of the second screw (81) outside the slide (7). A first rack (131) is fixedly provided on one side of the support seat (72). The length direction of the first rack (131) is parallel to the length direction of the base (3). The first rack (131) and the first gear (82) are meshed and matched.

8. The laser cladding equipment for the inner wall of a pipeline according to claim 6, characterized in that: The second moving assembly (9) comprises a threaded sleeve (91) and a third screw (92), two threaded sleeves (91) and two third screws (92) are provided and correspond to each other. The threaded sleeve (91) is vertically arranged, the bottom end of the threaded sleeve (91) is rotatably connected to the upper surface of the slide (71), one end of the third screw (92) is threadedly connected to the threaded sleeve (91), and the upper end of the third screw (92) is fixedly connected to the support seat (72). A second gear (75) is fixedly provided on one of the two threaded sleeves (91), a second rack (132) is fixedly provided on one side of the support platform (13), the second rack (132) and the second gear (75) are meshed and matched, and a linkage assembly (76) for linking the two threaded sleeves (91) is provided at the slide (71).

9. The laser cladding equipment for the inner wall of a pipeline according to claim 6, characterized in that: The linkage assembly (76) includes a third gear (761) and a fourth gear (762). The third gear (761) and the fourth gear (762) are respectively fixed on two threaded sleeves (91). The third gear (761) and the fourth gear (762) are meshed. The third gear (761) and the second gear (75) are located on the same threaded sleeve (91).

10. The laser cladding equipment for the inner wall of a pipeline according to claim 1, characterized in that: Displacement grooves (33) are provided on opposite sides of the upper surface of the base (3) along its length direction. The base (3) is slidably connected to a displacement block (34) in the displacement groove (33). An auxiliary platform (35) is provided on the upper surface of the base (3). The upper surface of the displacement block (34) and the auxiliary platform (35) are fixedly connected.

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