A laser welding gun cutting stabilization device

Abstract

The invention discloses a laser welding gun cutting stabilization device, which relates to the technical field of laser cutting auxiliary devices, and comprises: two fixed cylinders, each of which is provided with a plurality of support plates on its periphery; a driven connecting rod, each of which is hinged to the corresponding fixed cylinder through two driven connecting rods; a rotating shaft, two fixed cylinders are sleeved on the same rotating shaft; a connecting assembly, which is rotatably arranged on the rotating shaft between the two fixed cylinders, and a welding gun is installed in the connecting assembly for cutting operation; a threaded cylinder, each of which is rotatably provided with a threaded cylinder at one end of the fixed cylinder close to the connecting assembly, a thread is provided on the outer wall of the threaded cylinder, and the rotating shaft is slidably connected to the threaded cylinder; a sliding sleeve, each of which is threadedly connected to a sliding sleeve on the outer wall of the threaded cylinder, and the sliding sleeve is threadedly connected to the threaded cylinder; the invention can form a stable supporting structure inside the pipeline, which is helpful to accurately control the cutting position and improve the cutting accuracy and flexibility.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting auxiliary devices, in particular to a laser welding gun cutting stabilization device. Background Art

[0002] The laser welding gun cutting stabilizer is a device specially designed for high-precision and high-efficiency cutting operations in confined spaces. Combining the advantages of high energy density, precise control and stable support structure of the laser welding gun, it can achieve stable and continuous cutting operations. In industrial production, pipelines are important facilities for fluid transmission, and their quality and performance are directly related to the safety and efficiency of the entire production system. However, in the process of manufacturing, repairing and renovating pipelines, it is often necessary to cut pipelines. Most traditional pipeline cutting methods use external cutting, that is, cutting operations are performed directly on the outside of the pipeline. This method is incapable of doing so in the face of some special scenarios, such as when there are obstacles outside the pipeline, when it is necessary to maintain the integrity of the outside of the pipeline, or when high-precision cutting is required. Cutting from the inside of the pipeline can effectively avoid the influence of external obstacles, while reducing damage to the external structure of the pipeline, and improving the safety and flexibility of the cutting operation.

[0003] However, there are still some shortcomings in the existing methods of cutting inside pipes. On the one hand, traditional internal cutting tools often lack sufficient stability and precision, and are easily affected by the internal environment of the pipe (such as narrow space, large curvature, etc.), resulting in poor cutting results. On the other hand, although some advanced cutting equipment has high cutting accuracy and stability, it is often bulky and complicated to operate, and is not suitable for confined spaces such as inside pipes.

[0004] Therefore, it is necessary to provide a laser welding gun cutting stabilization device to solve the problems raised in the above background technology. Summary of the invention

[0005] To achieve the above object, the present invention provides the following technical solution: a laser welding gun cutting stabilization device, comprising:

[0006] Two fixed cylinders, each of which has a plurality of support plates distributed around its periphery;

[0007] A driven connecting rod, each of the support plates is hinged to the corresponding fixed cylinder through two driven connecting rods, so that the support plate can be expanded or retracted relative to the fixed cylinder;

[0008] A rotating shaft, wherein the two fixing cylinders are sleeved on the same rotating shaft;

[0009] A connecting assembly, rotatably disposed on a rotating shaft between the two fixed cylinders, wherein a welding gun is installed in the connecting assembly for cutting operation;

[0010] A threaded barrel, wherein one end of each of the fixed barrels close to the connecting assembly is rotatably provided with a threaded barrel, the outer wall of the threaded barrel is provided with threads, and the rotating shaft is slidably connected with the threaded barrel;

[0011] A sliding sleeve, wherein the outer wall of each threaded barrel is threadedly connected with a sliding sleeve, and the sliding sleeve is threadedly connected to the threaded barrel;

[0012] The sliding sleeve is hinged to each supporting plate of the corresponding fixed cylinder through an active connecting rod. When the sliding sleeve slides along the threaded cylinder, the supporting plates are pushed to open or close synchronously through the active connecting rod.

[0013] Furthermore, a turntable is rotatably provided at one end of the two sliding sleeves close to the connecting component, a connecting strip is fixed to one side of the turntable, the connecting strip runs through the connecting component, and the two connecting strips are distributed on both sides of the connecting component.

[0014] Furthermore, a hollow motor is arranged between the sliding sleeve and the corresponding rotating disk, the outer wall of the hollow motor is fixed to the sliding sleeve, and the inner wall of the hollow motor is fixed to the rotating disk.

[0015] Furthermore, the connecting assembly includes a shell, the rotating shaft is slidably connected to the bottom of the shell, a sleeve is rotatably connected inside the shell, a connecting sleeve is fixed to the top of the shell, a telescopic shaft is slidably connected inside the connecting sleeve, the sleeve is threadedly connected and sleeved in the telescopic shaft, and the welding gun is arranged at the upper end of the telescopic shaft.

[0016] Furthermore, the connecting strip slides through the outer shell, a gear ring is fixed to the lower end of the sleeve, and one side of the two connecting strips close to the gear ring is a rack and meshes with the gear ring.

[0017] Furthermore, a slide rail is fixed on the top of the telescopic shaft, a slide seat is slidably connected to the slide rail, and the welding gun is fixed to the slide seat.

[0018] Furthermore, a guide sleeve is rotatably connected to the rotating shaft, and the guide sleeve is fixedly connected to the sliding seat via an L-shaped connecting rod.

[0019] Furthermore, a sliding groove is provided on the outer wall of the rotating shaft, and the threaded barrel is connected to the sliding groove of the rotating shaft via a sliding key.

[0020] Furthermore, a rubber pad is provided on the outer wall of the support plate.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, two fixed cylinders and multiple support plates on their periphery are used to form a stable support structure inside the pipeline by utilizing the linkage of a driven connecting rod and an active connecting rod. When the sleeve slides along the threaded cylinder, the support plates can be opened or closed synchronously by the push of the connecting rod, ensuring that the device is stably supported inside the pipeline, providing a solid foundation for subsequent cutting operations.

[0023] The design of the telescopic shaft and sleeve of the connecting assembly in the present invention allows the height of the welding gun to be adjusted as needed. When the sleeve slides, the connecting bar drives the sleeve to rotate through the meshing action of the rack and the gear ring, thereby realizing the lifting and lowering of the telescopic shaft, and then adjusting the height of the welding gun. This design allows the welding gun to always maintain a suitable distance from the inner wall of the pipe, thereby improving the accuracy and stability of cutting.

[0024] The slide rail and the slide seat design of the present invention can fine-tune the axial position of the welding gun by axially sliding the rotating shaft, which helps to accurately control the cutting position and improve the cutting accuracy and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the fixed cylinder in the present invention;

[0028] Figure 4 It is a schematic diagram of the projection structure inside the connection component in the present invention;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure inside the connection component of the present invention;

[0030] In the figure: 1. fixed cylinder; 2. support plate; 3. driven connecting rod; 4. rotating shaft; 41. guide sleeve; 5. threaded cylinder; 6. turntable; 7. sliding sleeve; 71. active connecting rod; 72. hollow motor; 8. connecting assembly; 81. housing; 82. gear ring; 83. sleeve; 84. connecting sleeve; 85. telescopic shaft; 86. slide rail; 87. slide seat; 88. connecting rod; 9. welding gun; 10. connecting strip. DETAILED DESCRIPTION

[0031] See also Figure 1-Figure 5 In an embodiment of the present invention, a laser welding gun cutting stabilization device includes:

[0032] Two fixed cylinders 1, each of which has a plurality of support plates 2 distributed around its periphery;

[0033] A driven connecting rod 3, each of the support plates 2 is hinged to the corresponding fixed cylinder 1 through two driven connecting rods 3, so that the support plate 2 can be expanded or retracted relative to the fixed cylinder 1;

[0034] A rotating shaft 4, wherein the two fixing cylinders 1 are sleeved on the same rotating shaft 4;

[0035] A connecting assembly 8 is rotatably disposed on the rotating shaft 4 between the two fixed cylinders 1, and a welding gun 9 is installed in the connecting assembly 8 for cutting operation;

[0036] Threaded barrel 5, one end of each fixed barrel 1 close to the connecting assembly 8 is rotatably provided with a threaded barrel 5, the outer wall of the threaded barrel 5 is provided with threads, and the rotating shaft 4 is slidably connected with the threaded barrel 5;

[0037] A sliding sleeve 7, wherein the outer wall of each threaded barrel 5 is threadedly connected with a sliding sleeve 7, and the sliding sleeve 7 is threadedly connected to the threaded barrel 5;

[0038] The sliding sleeve 7 is hinged to each support plate 2 of the corresponding fixed cylinder 1 through an active connecting rod 71. When the sliding sleeve 7 slides along the threaded cylinder 5, the active connecting rod 71 pushes the support plates 2 to open or close synchronously.

[0039] That is to say, when the rotating shaft 4 rotates, it can drive the two threaded cylinders 5 to rotate, and then drive the sliding sleeve 7 to slide along the threaded cylinder 5, so that through the linkage action of the active connecting rod 71 and the driven connecting rod 3, each support plate 2 in the two fixed cylinders 1 can be opened synchronously, so as to stably support the support plate 2 inside the pipe to be cut, thereby ensuring that the welding gun 9 connected in the connecting assembly 8 can perform stable cutting inside the pipe.

[0040] In this embodiment, a turntable 6 is rotatably provided at one end of the two sliding sleeves 7 close to the connecting component 8, and a connecting strip 10 is fixed to one side of the turntable 6. The connecting strip 10 runs through the connecting component 8, and the two connecting strips 10 are distributed on both sides of the connecting component 8.

[0041] In this embodiment, a hollow motor 72 is disposed between the sliding sleeve 7 and the corresponding turntable 6 , the outer wall of the hollow motor 72 is fixed to the sliding sleeve 7 , and the inner wall of the hollow motor 72 is fixed to the turntable 6 .

[0042] That is to say, the hollow motor 72 can drive the turntable 6 to rotate, so that the connecting strip 10 drives the connecting assembly 8 to rotate, so that the welding gun 9 can rotate around the rotating shaft 4 and cut the pipe in a circular shape from the inside.

[0043] In this embodiment, the connecting assembly 8 includes a shell 81, the rotating shaft 4 is slidably connected to the bottom of the shell 81, a sleeve 83 is rotatably connected inside the shell 81, a connecting sleeve 84 is fixed to the top of the shell 81, a telescopic shaft 85 is slidably connected inside the connecting sleeve 84, the sleeve 83 is threadedly connected and sleeved in the telescopic shaft 85, and the welding gun 9 is arranged at the upper end of the telescopic shaft 85.

[0044] That is to say, the sleeve 83 can be rotated to drive the telescopic shaft 85 to move up and down, thereby changing the height of the welding gun 9 .

[0045] In this embodiment, the connecting strip 10 slides through the housing 81 , a gear ring 82 is fixed to the lower end of the sleeve 83 , and one side of the two connecting strips 10 close to the gear ring 82 is a rack that meshes with the gear ring 82 .

[0046] That is, when the sliding sleeve 7 slides, it will drive the corresponding rotating disk 6 and the connecting bar 10 to slide, so that the rack of the connecting bar 10 drives the gear ring 82 to rotate. When the sliding direction of the sliding sleeve 7 causes the support plate 2 to expand, the rotation direction of the gear ring 82 causes the welding gun 9 to rise, so that the welding gun 9 can automatically adjust its height and maintain a suitable distance from the inner wall of the pipe.

[0047] In this embodiment, a slide rail 86 is fixed on the top of the telescopic shaft 85 , a slide seat 87 is slidably connected to the slide rail 86 , and the welding gun 9 is fixed to the slide seat 87 .

[0048] The axial position of the welding gun 9 can be finely adjusted by sliding the slide 87, so that the cutting position can be accurately adjusted.

[0049] In this embodiment, a guide sleeve 41 is rotatably connected to the rotating shaft 4 , and the guide sleeve 41 is fixedly connected to the slide seat 87 via an L-shaped connecting rod 88 .

[0050] That is, the position of the housing 81 is fixed at the middle of the rotating shaft 4 by the two connecting bars 10. When the supporting plate 2 is supported to the inner wall of the pipe, the connecting rod 88 can drive the slide 87 to slide along the slide rail 86 by axially sliding the rotating shaft 4, thereby fine-tuning the axial position of the welding gun 9.

[0051] In this embodiment, a sliding groove is provided on the outer wall of the rotating shaft 4, and the threaded barrel 5 is connected to the sliding groove of the rotating shaft 4 via a sliding key.

[0052] That is to say, the rotating shaft 4 and the threaded barrel 5 can slide against each other and transmit torque, ensuring that the threaded barrel 5 does not affect the sliding of the rotating shaft 4. The fixed barrel 1, the rotating disk 6, the housing 81 and the rotating shaft 4 are all clearance fits, which will not affect the rotation and sliding of the rotating shaft 4.

[0053] In this embodiment, a rubber pad is provided on the outer wall of the support plate 2, which can increase the friction between the support plate 2 and the inner wall of the pipeline and protect the inner wall of the pipeline from being scratched.

[0054] In specific implementation, the device is placed as a whole inside the pipe to be cut, ensuring that the outer periphery of the support plate 2 is slightly smaller than the inner diameter of the pipe, so that there is initial friction between the support plate 2 and the inside of the pipe, until the axial position of the welding gun 9 is roughly at the cutting position;

[0055] The rotating shaft 4 drives the two threaded cylinders 5 to rotate, and then drives the sliding sleeve 7 to slide along the threaded cylinder 5. The sliding of the sliding sleeve 7 is linked by the active connecting rod 71 and the driven connecting rod 3, so that each support plate 2 in the two fixed cylinders 1 is opened synchronously until the support plate 2 is stably supported inside the pipeline.

[0056] When the sliding sleeve 7 slides, it will drive the corresponding turntable 6 and the connecting bar 10 to slide, and the rack of the connecting bar 10 will mesh with the gear ring 82 in the connecting assembly 8, so that the gear ring 82 will rotate, and the rotation of the gear ring 82 will drive the sleeve 83 to rotate. Since the sleeve 83 is threadedly connected to the telescopic shaft 85, the rotation of the sleeve 83 will make the telescopic shaft 85 rise and fall, thereby changing the height of the welding gun 9. When the support plate 2 expands, the welding gun 9 will automatically rise to maintain a suitable distance from the inner wall of the pipe;

[0057] In addition, the axial position of the welding gun 9 can be finely adjusted by axially sliding the rotating shaft 4 and sliding the slide seat 87 by utilizing the action of the guide sleeve 41 and the connecting rod 88 to precisely control the cutting position;

[0058] Start the hollow motor 72 to drive the turntable 6 to rotate, so that the connecting bar 10 drives the connecting assembly 8 to rotate, and the welding gun 9 will rotate around the rotating shaft 4 with the connecting assembly 8 to cut the pipe from the inside. The cutting effect can be controlled by adjusting the power and cutting speed of the welding gun 9 as needed;

[0059] After the cutting is completed, the rotating shaft 4 is rotated in the opposite direction to collapse the supporting plate 2, and the entire device is taken out of the pipeline.

[0060] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A laser welding gun cutting stabilization device, characterized in that: include: Two fixed cylinders (1), each of the fixed cylinders (1) having a plurality of support plates (2) distributed around its periphery; A driven connecting rod (3), each support plate (2) is hinged to a corresponding fixed cylinder (1) via two driven connecting rods (3), so that the support plate (2) can be expanded or retracted relative to the fixed cylinder (1); A rotating shaft (4), wherein the two fixing cylinders (1) are sleeved on the same rotating shaft (4); A connecting assembly (8) rotatably arranged on a rotating shaft (4) between the two fixed cylinders (1), wherein a welding gun (9) is installed in the connecting assembly (8) for cutting operation; A threaded cylinder (5), wherein one end of each of the fixed cylinders (1) close to the connecting assembly (8) is rotatably provided with a threaded cylinder (5), the outer wall of the threaded cylinder (5) is provided with threads, and the rotating shaft (4) is slidably connected to the threaded cylinder (5); A sliding sleeve (7), wherein the outer wall of each threaded barrel (5) is threadedly connected with a sliding sleeve (7), and the sliding sleeve (7) is threadedly connected to the threaded barrel (5); The sliding sleeve (7) is hinged to each support plate (2) of the corresponding fixed cylinder (1) through an active connecting rod (71); when the sliding sleeve (7) slides along the threaded cylinder (5), the active connecting rod (71) pushes the support plate (2) to open or close synchronously; A rotating disk (6) is rotatably arranged at one end of the two sliding sleeves (7) close to the connecting assembly (8), a connecting strip (10) is fixed on one side of the rotating disk (6), the connecting strip (10) passes through the connecting assembly (8), and the two connecting strips (10) are distributed on both sides of the connecting assembly (8); The connecting assembly (8) comprises a housing (81), the rotating shaft (4) is slidably connected to the bottom of the housing (81), a sleeve (83) is rotatably connected inside the housing (81), a connecting sleeve (84) is fixed to the top of the housing (81), a telescopic shaft (85) is slidably connected inside the connecting sleeve (84), the sleeve (83) is threadedly connected and sleeved in the telescopic shaft (85), and the welding gun (9) is arranged at the upper end of the telescopic shaft (85); The connecting strip (10) slides through the housing (81), a gear ring (82) is fixed to the lower end of the sleeve (83), and one side of the two connecting strips (10) close to the gear ring (82) is a gear rack, which meshes with the gear ring (82).

2. A laser welding gun cutting stabilization device according to claim 1, characterized in that: A hollow motor (72) is arranged between the sliding sleeve (7) and the corresponding rotating disk (6); the outer wall of the hollow motor (72) is fixed to the sliding sleeve (7), and the inner wall of the hollow motor (72) is fixed to the rotating disk (6).

3. A laser welding gun cutting stabilization device according to claim 1, characterized in that: A slide rail (86) is fixed on the top of the telescopic shaft (85), a slide seat (87) is slidably connected to the slide rail (86), and the welding gun (9) is fixed to the slide seat (87).

4. A laser welding gun cutting stabilization device according to claim 3, characterized in that: A guide sleeve (41) is rotatably connected to the rotating shaft (4), and the guide sleeve (41) is fixedly connected to the sliding seat (87) via an L-shaped connecting rod (88).

5. The laser welding gun cutting stabilization device according to claim 1, characterized in that: The outer wall of the rotating shaft (4) is provided with a sliding groove, and the threaded barrel (5) is connected to the sliding groove of the rotating shaft (4) via a sliding key.

6. A laser welding gun cutting stabilization device according to claim 1, characterized in that: The outer wall of the support plate (2) is provided with a rubber pad.

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