A laser processing device for processing of tubular material

Abstract

The application discloses a kind of laser processing device for tubular material processing, and the application relates to the field of laser processing technology.The laser processing device for tubular material processing includes body, multi-point laser processing mechanism, the multi-point laser processing mechanism includes circular frame and rectangular mouth, the surface of circular frame and the position close to rectangular mouth are fixedly installed with hydraulic cylinder, the telescopic end of hydraulic cylinder is fixedly installed with laser processing host, the end of laser processing host is installed with laser cutting head, the surface of laser processing host and the position close to laser cutting head are fixedly installed with V-shaped opening shield, the V-shaped opening of V-shaped opening shield surface is installed with ball, the outside of V-shaped opening shield is fixedly connected with elastic shielding piece, the surface of body and the side away from base are installed with lifting mechanism, the top of base is installed with rotary feeding mechanism, the purpose of uniform heating is achieved, multi-point synchronous cutting is used, uniform heating, not easy to deform, safe and reliable.

Description

Technical Field

[0001] This invention relates to the field of laser processing technology, and in particular to a laser processing apparatus for processing tubular materials. Background Technology

[0002] With the continuous development of science and technology and the rapid progress of society, the industrial processing sector is also developing rapidly. Laser processing is one of the processing methods in industry. Laser processing utilizes the energy of light, which is focused by a lens to achieve a very high energy density at the focal point, and processes materials through the photothermal effect. Laser processing requires no tools, has a high processing speed, minimal surface deformation, and can process various materials. Various processing techniques are performed on materials using laser beams, such as drilling, cutting, scribing, welding, and heat treatment. When processing large-diameter tubular materials, laser cutting is required, thus necessitating the use of laser cutting equipment.

[0003] For example, a tube laser cutting device as described in Chinese Patent Publication No. CN201921886607.9 includes a base, a front housing, a rear housing, a control panel, and an electrical control box. The front housing is located on the front surface of the base, the rear housing is located on the rear surface of the base, the control panel is located on the top surface of the front housing, and the electrical control box is located on the surface of the base in front of the front housing. A clamping mechanism is provided inside the front housing, and a push rod mechanism is provided inside the rear housing. A guide rail is provided between the top surfaces of the front and rear housings via a guide rail fixing seat. The guide rail is located on the left and right sides of the guide rail fixing seat, and a laser cutting mechanism is mounted on the guide rail. The control panel is electrically connected to the electrical control box. The laser cutting mechanism includes a roller fixing seat, a first motor, a second motor, a lead screw, and a laser cutting head. Roller fixing seats are provided on both the left and right sides of the guide rail. Rollers are mounted on the front and rear ends of the roller fixing seats via rotating shafts, and the rollers engage with the guide rails. The first motor is located in the middle of the roller fixing seat, and the drive end of the first motor is located outside the roller fixing seat. Both the drive end of the first motor and the roller shaft are equipped with pulleys, which are connected by a transmission belt. The second motor is located on the top surface of the roller fixing seat on the left side. One end of the lead screw is connected to the drive end of the second motor through a connector. A lead screw mating seat is provided on the top surface of the roller fixing seat on the right side, and the other end of the lead screw is mated with the lead screw mating seat. A laser cutting head fixing seat is provided at the bottom of the nut on the lead screw, and the laser cutting head is mated in the laser cutting head fixing seat. The control panel is electrically connected to the first motor, the second motor, and the laser cutting head. The electrical control box is connected to the first motor, the second motor, and the laser cutting head. The laser cutting head cuts the pipe and can adjust the cutting position of the pipe to adapt to the cutting of pipes of different lengths and sizes.

[0004] In existing technical references, it is possible to laser cut pipes using a laser cutting head. However, this design involves a single cutting head performing single-point laser cutting on the pipe. Especially when cutting large-diameter pipes, the concentrated local heating at a single point leads to uneven heating, causing a sharp increase in temperature near the cutting area. This results in deformation of the pipe due to thermal expansion and contraction, such as local bending, ellipticization, and warping. Furthermore, when the pipe is about to be cut, the cut portion will bend due to gravity, resulting in an uneven cut and affecting the overall cutting effect. Summary of the Invention

[0005] To solve the above technical problems, the present invention is implemented through the following technical solution:

[0006] A laser processing apparatus for processing tubular materials, comprising:

[0007] The machine body, and the base installed on the side of the machine body, wherein a support roller is rolled on the top of the base and the end near the machine body via the frame;

[0008] A multi-point laser processing mechanism includes a circular frame and a rectangular opening. The circular frame is detachably fixedly installed in the middle of the inner side of the machine body. The rectangular opening is opened on the surface of the circular frame. A hydraulic cylinder is fixedly installed on the surface of the circular frame near the rectangular opening. The telescopic end of the hydraulic cylinder passes through the circular frame and extends into its interior. A laser processing host is fixedly installed on the telescopic end of the hydraulic cylinder. A laser cutting head is installed at the end of the laser processing host. A V-shaped opening cover is fixedly installed on the surface of the laser processing host near the laser cutting head. A ball bearing is rolled at the V-shaped opening on the surface of the V-shaped opening cover. An elastic baffle is fixedly connected to the outer side of the V-shaped opening cover.

[0009] By utilizing three laser processing main units and laser cutting heads evenly distributed along the circumference of a circular frame, compared to the traditional processing mode of unidirectional cutting by a single laser head, multi-point synchronous laser cutting of tubular materials in the circumferential direction can be achieved. In the processing steps such as tube circumferential cutting and cutting, multiple laser cutting heads work synchronously, which can simultaneously complete the circumferential multi-point melting and cutting of the tube, shortening the processing time of a single tube and facilitating batch laser cutting.

[0010] A lifting mechanism is installed on the surface of the machine body and on the side away from the base, and a rotary feeding mechanism is installed on the top of the base.

[0011] Furthermore, the support roller is installed at an angle, and the laser processing host passes through the center of the rectangular opening. There are three laser processing hosts, and the three laser processing hosts are evenly distributed along the circumference of the circular frame. The laser cutting head passes through the center of the V-shaped opening cover. By extending the telescopic end of the hydraulic cylinder, a pushing force can be applied to the laser processing host, causing the three evenly distributed laser processing hosts to move closer to the pipe. The laser cutting head will move together with the laser processing host, which can adjust the distance between the laser cutting head and the pipe. Accurate control of the distance between the laser cutting head and the pipe helps the laser cutting head to laser cut the pipe.

[0012] Multiple laser cutting heads are evenly arranged around the circumference to avoid concentrated heating at a single point, ensuring uniform heating of the pipe. This guarantees uniform force during circumferential cutting and a regular melting trajectory, effectively avoiding problems such as cut deviation, uneven melting edges, and localized heat deformation of the pipe that are prone to occur in traditional single-head cutting. Due to the uniform heating, the pipe's coefficient of thermal expansion and contraction is not greatly affected, and the cut edge is less likely to warp.

[0013] Furthermore, the ball bearings are evenly distributed at the V-shaped openings on the surface of the V-shaped opening cover. The elastic shield is fan-shaped with a wavy curved surface. A V-shaped opening cover is provided on the outside of the laser cutting head to fully enclose the laser cutting area of ​​the laser cutting head, effectively blocking the high-temperature molten slag, metal spatter, and strong light radiation generated during the laser processing. The ball bearings evenly distributed at the V-shaped openings of the V-shaped opening cover can roll and fit against the outer surface of the tube, which does not hinder the rotation and feeding of the tube, and can achieve closed protection of the working area, preventing metal fragments from splashing into the equipment and causing wear and jamming of parts. Moreover, the symmetrical V-shaped openings on both sides of the V-shaped opening cover support and clamp the two sides of the cut, preventing the cut part from bending due to gravity when the tube is about to be cut, resulting in a smooth cut.

[0014] The elastic shield with a fan-shaped wavy surface can adapt to the processing of pipes of different diameters, automatically seal the gap between the V-shaped opening shield and the pipe, completely prevent the spillage of splashes, improve the working environment, and avoid the safety hazards of high-temperature splashes causing injury.

[0015] Furthermore, the lifting mechanism is used to support the tubular material that needs to be cut and to center the end of the tubular material;

[0016] The lifting mechanism includes a rectangular shell, which is fixedly installed on the bottom side of the machine body surface. A strip-shaped hole is opened on the top side of the rectangular shell. A mobile trolley is installed inside the rectangular shell. A lifting device is fixedly connected to the top of the mobile trolley. The lifting device passes through the strip-shaped hole. A V-shaped receiving plate is fixedly installed on the output end of the lifting device and on the side close to the circular frame. A supporting centering cone is rotatably installed on the top of the lifting device surface. A spiral groove is opened on the conical surface on the outer side of the supporting centering cone.

[0017] The lifting device is moved linearly by a movable trolley, so that the supporting centering cone moves with the lifting device. This allows the horizontal distance between the supporting centering cone and the laser cutting head to be adjusted, enabling the use of fixed-distance laser cutting of different lengths.

[0018] Meanwhile, the tip of the centering cone is inserted into the interior of the pipe end face. Through the conical surface of the centering cone, the pipe can be self-adaptively and precisely centered, making it less prone to eccentricity. The spiral grooves evenly distributed on the conical surface of the centering cone fit against the inner wall of the pipe end face, increasing friction and supporting the rotation of the centering cone. This allows the centering cone and the pipe to rotate synchronously, which helps to laser cut the pipe and reduces the likelihood of jamming.

[0019] Furthermore, there are two mobile trolleys, and the two mobile trolleys are symmetrically installed along the central axis of the rectangular shell. The lifting device is installed vertically, and there are two lifting devices, and the two lifting devices are symmetrically installed along the central axis of the rectangular shell.

[0020] Furthermore, the V-shaped receiving plate is installed horizontally, the tip of the supporting centering cone faces the center of the circular frame, and the spiral grooves are evenly distributed on the conical surface outside the supporting centering cone.

[0021] Furthermore, the rotary feeding mechanism includes a linear guide rail and a linear driver. The linear guide rail is detachably fixedly installed on the side of the top of the base, and the linear driver is installed on the side of the top outer side. A servo motor is slidably installed on the top of the linear guide rail. A conical bucket is detachably fixedly installed at the output end of the servo motor. A telescopic device is installed inside the conical bucket. A conical push block is fixedly installed at the telescopic end of the telescopic device. An internal support assembly is installed inside the conical bucket.

[0022] Furthermore, the linear guide rails are horizontally installed, there are two linear guide rails, and the two linear guide rails are symmetrically installed along the central axis of the base. The axis of the conical push block coincides with the axis of the conical bucket. The output end of the linear driver is fixedly installed on the bottom of the servo motor surface.

[0023] Furthermore, the internal support assembly includes a swing rod, the outer end of which is hinged to the inner wall of the conical bucket. The surface of the swing rod is in contact with the conical surface of the outer side of the conical push block. A support elastic strip is fixedly connected to the outer side of the swing rod away from the inner wall of the conical bucket. A flexible protective strip is fixedly connected to the surface of the support elastic strip. A tension spring is fixedly connected to the surface of the swing rod near the support elastic strip. The conical push block is driven by a telescopic device to squeeze the three evenly distributed swing rods, causing the support elastic strip to adaptively tighten the inner wall of the pipe from the inside, achieving stable clamping of the pipe without damage. Compared with the existing external clamping structure, the internal support clamping method does not squeeze the outer wall of the pipe, avoiding quality defects such as compression deformation, outer wall indentation, and scratches of thin-walled pipes, and significantly improving the appearance quality and yield of the finished pipe.

[0024] Furthermore, the swing rods are installed at an angle, and there are three swing rods evenly distributed on the inner side of the conical bucket. The supporting elastic strip is arc-shaped, and the flexible protective strip is installed at an angle. The flexible protective strip is made of rubber. The tension spring is installed between the swing rod and the flexible protective strip. The tension spring can realize the automatic reset of the swing rod, which is convenient for quick loading and unloading of pipes. The rubber flexible protective strip can further buffer the clamping force. Through the flexible contact between the flexible protective strip and the inner wall of the pipe, it is suitable for processing various types of pipes such as thin-walled pipes and precision pipes, and is not easy to damage the pipes. With the help of linear guide rails, linear drivers and servo motors, it can realize automatic translation and rotary feeding of pipes, with a high degree of automation and accurate loading and positioning.

[0025] The modular design of each structure of this device allows for easy disassembly and installation of the circular frame, facilitating equipment inspection, maintenance, and parts replacement. The inclined support rollers, combined with the overall lifting and feeding structure, form a complete integrated structure for pipe conveying, support, and processing. The pipe feeding, rotation, and cutting processes run smoothly without any jamming or offset issues.

[0026] The combination structure of multiple laser heads, adaptive centering, and flexible internal support clamping can be adapted to various processing procedures such as laser cutting and circumferential cutting of metal tubular materials with different diameters and lengths. It is also suitable for various tube types such as round tubes and irregular tubes, making it extremely versatile.

[0027] The overall equipment has a compact structure and reasonable layout, and the processing process is highly automated, which effectively reduces the cost of manual intervention and is suitable for large-scale, high-precision automated processing and production of pipes.

[0028] The beneficial effects of the technical solution provided by this invention include:

[0029] 1. By utilizing three laser processing main units and laser cutting heads evenly distributed along the circumference of a circular frame, compared to the traditional processing mode of unidirectional cutting by a single laser head, multi-point synchronous laser cutting of tubular materials in the circumferential direction can be achieved. In the processing steps such as tube circumferential cutting and cutting, multiple laser cutting heads work synchronously, which can simultaneously complete the circumferential multi-point melting and cutting of the tube, shorten the processing time of a single tube, and facilitate batch laser cutting.

[0030] Second, multiple laser cutting heads are evenly arranged around the circumference to avoid concentrated heating at a single point, ensuring uniform heating of the pipe. This guarantees uniform force during circumferential cutting and a regular melting trajectory, effectively avoiding problems such as cut deviation, uneven melting edges, and localized heat deformation of the pipe that are prone to occur in traditional single-head cutting. Due to the uniform heating, the pipe's coefficient of thermal expansion and contraction is not greatly affected, and the pipe cut is less likely to warp.

[0031] Third, by extending the telescopic end of the hydraulic cylinder, a pushing force can be applied to the laser processing host, causing the three evenly distributed laser processing hosts to move closer to the pipe. The laser cutting head will also move with the laser processing host, which allows for adjustment of the distance between the laser cutting head and the pipe. Accurate control of the distance between the laser cutting head and the pipe helps the laser cutting head to perform laser cutting on the pipe.

[0032] Fourth, a V-shaped opening protective cover is installed on the outside of the laser cutting head, which can completely cover the laser cutting operation area of ​​the laser cutting head, effectively blocking the high-temperature molten slag, metal spatter and strong light radiation generated during the laser processing. The ball bearings evenly distributed at the V-shaped opening of the protective cover can roll and fit against the outer surface of the tube, which does not hinder the rotation and feeding of the tube, and can achieve closed protection of the operation area, preventing metal fragments from splashing into the equipment and causing wear and jamming of parts. In addition, the symmetrical V-shaped openings on both sides of the protective cover support and clamp the two sides of the cut, preventing the cut part from bending due to gravity when the tube is about to be cut, and ensuring a smooth cut.

[0033] 5. The elastic shielding plate with a fan-shaped wavy surface can adapt to the processing of pipes with different diameters, automatically seal the gap between the V-shaped opening shield and the pipe, completely prevent the spillage of splashes, improve the working environment, and avoid the safety hazards of high-temperature splashes injuring people.

[0034] VI. The movable trolley drives the lifting device to move linearly, causing the supporting centering cone to move along with the lifting device. This allows adjustment of the horizontal distance between the supporting centering cone and the laser cutting head, enabling laser cutting at fixed distances of different lengths. Simultaneously, the tip of the supporting centering cone is inserted into the interior of the pipe end face. Through the conical surface of the supporting centering cone, the pipe achieves self-adaptive and precise centering, reducing the likelihood of eccentricity. Furthermore, the spiral grooves evenly distributed on the conical surface of the supporting centering cone fit against the inner wall of the pipe end face, increasing friction and supporting the rotation of the centering cone. This allows the supporting centering cone and the pipe to rotate synchronously, facilitating laser cutting of the pipe and reducing the likelihood of jamming.

[0035] 7. The tapered push block driven by the telescopic device squeezes three evenly distributed swing rods, which in turn drives the support elastic strip to adaptively tighten the inner wall of the pipe from the inside, achieving a stable clamping of the pipe without damage. Compared with the existing external clamping structure, the internal clamping method will not squeeze the outer wall of the pipe, avoiding quality defects such as compression deformation, outer wall indentation, and scratches of thin-walled pipes, and greatly improving the appearance quality and yield of finished pipes.

[0036] 8. The tension spring enables the swing arm to automatically reset, facilitating quick loading and unloading of pipes. The flexible rubber protective strip further buffers the clamping force, and through the flexible contact between the protective strip and the inner wall of the pipe, it is suitable for processing various types of pipes such as thin-walled pipes and precision pipes, and is not likely to cause damage to the pipes. In conjunction with linear guides, linear drivers and servo motors, it can realize automatic translation and rotary feeding of pipes, with a high degree of automation and accurate loading and positioning. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the overall structure of a laser processing device for processing tubular materials, provided in an embodiment of the present invention.

[0038] Figure 2 This is a bottom view schematic diagram of a laser processing device for processing tubular materials provided in an embodiment of the present invention;

[0039] Figure 3 This is a schematic diagram of the connection structure between the multi-point laser processing mechanism and the machine body provided in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the overall structure of the multi-point laser processing mechanism provided in an embodiment of the present invention;

[0041] Figure 5 This is a schematic diagram of the connection structure between the lifting mechanism and the machine body provided in an embodiment of the present invention;

[0042] Figure 6 This is a schematic diagram of the overall structure of the lifting mechanism provided in an embodiment of the present invention;

[0043] Figure 7 This is a schematic diagram of the connection structure between the rotary feeding mechanism and the base provided in an embodiment of the present invention;

[0044] Figure 8 This is a schematic diagram of the internal structure of the conical bucket cross-section provided in an embodiment of the present invention;

[0045] Figure 9 Provided for embodiments of the present invention Figure 8 Enlarged view of a portion of point A in the middle.

[0046] In the diagram: 1. Machine body; 2. Base; 3. Support roller; 4. Multi-point laser processing mechanism; 5. Lifting mechanism; 6. Rotary feeding mechanism; 41. Circular frame; 42. Rectangular opening; 43. Hydraulic cylinder; 44. Laser processing host; 45. Laser cutting head; 46. V-shaped opening protective cover; 47. Ball bearing; 48. Elastic shielding plate; 51. Rectangular outer shell; 52. Strip hole; 53. Moving trolley; 54. Lifter; 55. V-shaped receiving plate; 56. Support centering cone; 57. Spiral groove; 61. Linear guide rail; 62. Linear driver; 63. Servo motor; 64. Conical bucket; 65. Telescopic device; 66. Conical push block; 67. Internal support assembly; 671. Swing rod; 672. Support elastic strip; 673. Flexible protective strip; 674. Tension spring. Detailed Implementation

[0047] Example 1, see Figures 1-4 A technical solution is provided:

[0048] A laser processing apparatus for processing tubular materials, comprising:

[0049] The machine body 1 and the base 2 installed on the side of the machine body 1, with a support roller 3 rolled on the top of the base 2 and the end near the machine body 1 via the frame;

[0050] The multi-point laser processing mechanism 4 includes a circular frame 41 and a rectangular opening 42. The circular frame 41 is detachably fixedly installed in the middle of the inner side of the machine body 1. The rectangular opening 42 is opened on the surface of the circular frame 41. A hydraulic cylinder 43 is fixedly installed on the surface of the circular frame 41 and near the rectangular opening 42. The telescopic end of the hydraulic cylinder 43 passes through the circular frame 41 and extends into it. A laser processing host 44 is fixedly installed on the telescopic end of the hydraulic cylinder 43. When the hydraulic cylinder 43 is turned on, it can apply a pushing force to the laser processing host 44 by extending the telescopic end of the hydraulic cylinder 43, so that the three evenly distributed laser processing hosts 44 move closer to the pipe. The laser cutting head 45 moves with the laser processing host 44, so the distance between the laser cutting head 45 and the pipe can be adjusted. The distance between the laser cutting head 45 and the pipe can be accurately controlled, which helps the laser cutting head 45 to laser cut the pipe.

[0051] After the pipe is laser-cut, the hydraulic cylinder 43 is activated again. The retraction of the extension end of the hydraulic cylinder 43 applies a pulling force to the laser processing host 44, causing the laser processing host 44 to move the laser cutting head 45 outwards. The laser cutting head 45 moves away from the pipe, facilitating unloading of the cut pipe. The laser cutting head 45 is mounted on the end of the laser processing host 44. A V-shaped opening cover 46 is fixedly installed on the surface of the laser processing host 44 near the laser cutting head 45. The V-shaped opening on the surface of the V-shaped opening cover 46... Roller ball 47 is installed, and elastic baffle plate 48 is fixedly connected to the outside of V-shaped opening protective cover 46. Using three laser processing host 44 and laser cutting head 45 evenly distributed along the circumference of circular frame 41, compared with the traditional processing mode of single laser head performing unidirectional cutting, it can realize multi-point synchronous laser cutting operation of tubular materials in the circumferential direction. In the processing process such as tube ring cutting and cutting, multiple laser cutting heads 45 work synchronously, which can simultaneously complete the circumferential multi-point melting and cutting of tubes, shorten the processing time of a single tube, and facilitate batch laser cutting.

[0052] The support roller 3 is installed at an angle, and the laser processing host 44 passes through the center of the rectangular opening 42. There are three laser processing hosts 44, and the three laser processing hosts 44 are evenly distributed along the circumference of the circular frame 41. The laser cutting head 45 passes through the center of the V-shaped opening cover 46. The multiple laser cutting heads 45 are evenly arranged around the circumference to avoid localized concentrated heating at a single point, so that the pipe is heated evenly. This ensures that the circumferential cutting force of the pipe is uniform and the melting and cutting trajectory is regular. It effectively avoids the problems of cut deviation, uneven melting edge, and localized heat deformation of the pipe that are easy to occur in traditional single-head cutting. Due to the uniform heating, the difference in the coefficient of thermal expansion and contraction of the pipe is avoided, and the pipe cut is not prone to warping.

[0053] The ball bearings 47 are evenly distributed at the V-shaped openings on the surface of the V-shaped opening cover 46. The elastic shield 48 is fan-shaped with a wavy curved surface. The V-shaped opening cover 46 is provided on the outside of the laser cutting head 45, which can completely wrap the laser cutting operation area of ​​the laser cutting head 45, effectively blocking the high-temperature molten slag, metal spatter and strong light radiation generated during the laser processing of the laser cutting head 45. The ball bearings 47 evenly distributed at the V-shaped openings of the V-shaped opening cover 46 can roll and fit against the outer surface of the tube, which does not hinder the rotation and feeding of the tube, and can achieve closed protection of the operation area, preventing metal fragments from splashing into the equipment and causing wear and jamming of parts. Moreover, the symmetrical V-shaped openings on both sides of the V-shaped opening cover 46 support and clamp the two sides of the cut, preventing the cut part from bending due to gravity when the tube is about to be cut, and ensuring a smooth cut.

[0054] The elastic shield 48 with a fan-shaped wavy surface can adapt to the processing of pipes with different diameters, automatically seal the gap between the V-shaped opening shield 46 and the pipe, completely prevent the spillage of splashes, improve the working environment, and avoid the safety hazard of high-temperature splashes injuring people.

[0055] Example 2, based on Example 1, see [link / reference] Figures 1 to 6 A technical solution is provided:

[0056] A lifting mechanism 5 is installed on the surface of the body 1 and on the side away from the base 2;

[0057] The lifting mechanism 5 is used to support the tubular material that needs to be cut and to center the end of the tubular material;

[0058] The lifting mechanism 5 includes a rectangular shell 51, which is fixedly installed on the bottom side of the surface of the machine body 1. A strip hole 52 is provided on the top side of the rectangular shell 51. A moving trolley 53 is installed inside the rectangular shell 51. A lifting device 54 is fixedly connected to the top of the moving trolley 53. The lifting device 54 passes through the strip hole 52. A V-shaped receiving plate 55 is fixedly installed on the output end of the lifting device 54 and on the side close to the circular frame 41. A supporting centering cone 56 is rotatably installed on the top of the surface of the lifting device 54. A spiral groove 57 is provided on the conical surface on the outer side of the supporting centering cone 56.

[0059] The movable trolley 53 drives the lifting device 54 to move linearly, causing the supporting centering cone 56 to move along with the lifting device 54. This allows adjustment of the horizontal distance between the supporting centering cone 56 and the laser cutting head 45, enabling laser cutting at fixed distances of different lengths. Simultaneously, the tip of the supporting centering cone 56 is inserted into the interior of the pipe end face. Through the conical surface of the supporting centering cone 56, the pipe achieves self-adaptive and precise centering, reducing the likelihood of eccentricity. Furthermore, the spiral grooves 57 evenly distributed on the conical surface of the supporting centering cone 56 fit against the inner wall of the pipe end face, increasing friction and supporting the rotation of the centering cone 56. This allows the supporting centering cone 56 to rotate synchronously with the pipe, facilitating laser cutting of the pipe and reducing the likelihood of jamming.

[0060] There are two mobile trolleys 53, and the two mobile trolleys 53 are symmetrically installed along the central axis of the rectangular shell 51. The lifting device 54 is installed vertically, and there are two lifting devices 54, and the two lifting devices 54 are symmetrically installed along the central axis of the rectangular shell 51.

[0061] The V-shaped receiving plate 55 is installed horizontally, with the tip of the supporting centering cone 56 facing the center of the circular frame 41, and the spiral grooves 57 are evenly distributed on the conical surface outside the supporting centering cone 56.

[0062] Example 3, based on Examples 1 and 2, see below.Figures 1 to 9 A technical solution is provided:

[0063] A rotary feeding mechanism 6 is installed on the top of the base 2;

[0064] The rotary feeding mechanism 6 includes a linear guide rail 61 and a linear driver 62. The linear guide rail 61 is detachably fixedly installed on the top side of the base 2. The linear driver 62 is installed on the outer top side. A servo motor 63 is slidably installed on the top of the linear guide rail 61. A conical bucket 64 is detachably fixedly installed at the output end of the servo motor 63. A telescopic device 65 is installed inside the conical bucket 64. A conical push block 66 is fixedly installed at the telescopic end of the telescopic device 65. An internal support assembly 67 is installed inside the conical bucket 64.

[0065] The linear guide rail 61 is horizontally installed. There are two linear guide rails 61, and the two linear guide rails 61 are symmetrically installed along the central axis of the base 2. The axis of the conical push block 66 coincides with the axis of the conical bucket 64. The output end of the linear driver 62 is fixedly installed on the bottom of the surface of the servo motor 63.

[0066] The inner support assembly 67 includes a swing rod 671. The outer end of the swing rod 671 is hinged to the inner wall of the conical bucket 64. The surface of the swing rod 671 is in contact with the conical surface of the outer side of the conical push block 66. A support elastic strip 672 is fixedly connected to the outer side of the swing rod 671 away from the inner wall of the conical bucket 64. A flexible protective strip 673 is fixedly connected to the surface of the support elastic strip 672. A tension spring 674 is fixedly connected to the surface of the swing rod 671 and near the support elastic strip 672. The conical push block 66 is driven by the telescopic device 65 to squeeze the three evenly distributed swing rods 671, which causes the support elastic strip 672 to adaptively tighten the inner wall of the pipe from the inside, achieving a stable clamping of the pipe without damage. Compared with the existing external clamping structure, the inner support clamping method will not squeeze the outer wall of the pipe, avoiding quality defects such as compression deformation, outer wall indentation, and scratches of thin-walled pipes.

[0067] The three swing rods 671 are evenly distributed on the inner side of the conical bucket 64 and are installed at an angle. The supporting elastic strip 672 is arc-shaped, and the flexible protective strip 673 is installed at an angle. The flexible protective strip 673 is made of rubber. The tension spring 674 is installed between the swing rods 671 and the flexible protective strip 673. The tension spring 674 can realize the automatic reset of the swing rods 671, which facilitates quick loading and unloading of pipes. The rubber flexible protective strip 673 can further buffer the clamping force. Through the flexible contact between the flexible protective strip 673 and the inner wall of the pipe, it is suitable for processing various types of pipes such as thin-walled pipes and precision pipes, and is not likely to cause damage to the pipes. With the help of the linear guide rail 61, the linear driver 62 and the servo motor 63, the automatic translation and rotary feeding of pipes can be realized. The degree of automation is high and the loading and positioning are accurate.

[0068] When using it, first place one end of the tube that needs to be laser cut on the support roller 3, and insert the other end of the tube into the conical bucket 64.

[0069] The telescopic device 65 drives the conical push block 66 to squeeze the three evenly distributed swing rods 671, which in turn drives the support elastic strip 672 to adaptively tighten the inner wall of the pipe from the inside, thus achieving a stable clamping of the pipe without damage.

[0070] Furthermore, the tension spring 674 can automatically reset the swing rod 671, facilitating quick loading and unloading of pipes. The flexible protective strip 673 made of rubber can further buffer the clamping force. Through the flexible contact between the flexible protective strip 673 and the inner wall of the pipe, it is suitable for processing various types of pipes such as thin-walled pipes and precision pipes, and is not likely to cause damage to the pipes. In conjunction with the linear guide rail 61, the linear driver 62 and the servo motor 63, it can realize automatic translational feeding and rotary feeding of pipes.

[0071] Furthermore, the operator activates the hydraulic cylinder 43 to perform the operation. By extending the telescopic end of the hydraulic cylinder 43, a pushing force can be applied to the laser processing host 44, causing the three evenly distributed laser processing hosts 44 to move closer to the pipe. The laser cutting head 45 will move together with the laser processing host 44, thereby adjusting the distance between the laser cutting head 45 and the pipe and accurately controlling the distance between the laser cutting head 45 and the pipe.

[0072] Meanwhile, the movable trolley 53 drives the lifting device 54 to move linearly, so that the supporting centering cone 56 moves together with the lifting device 54. This allows the horizontal distance between the supporting centering cone 56 and the laser cutting head 45 to be adjusted, enabling the use of fixed-distance laser cutting of different lengths. At the same time, the tip of the supporting centering cone 56 is inserted into the inside of the pipe end face. Through the conical surface of the supporting centering cone 56, the pipe can be self-adaptively and accurately centered, making it less prone to eccentricity.

[0073] The tip of the centering cone 56 is inserted into the inside of the pipe end face. Through the conical surface of the centering cone 56, the pipe can be self-adaptively and accurately centered, making it less likely to be eccentric. The spiral grooves 57, which are evenly distributed on the conical surface on the outside of the centering cone 56, fit against the inner wall of the pipe end face, which can increase the friction and support the rotation of the centering cone 56. This allows the centering cone 56 to rotate synchronously with the pipe, which helps to laser cut the pipe and makes it less likely to jam.

[0074] Furthermore, by utilizing three laser processing hosts 44 and laser cutting heads 45 evenly distributed along the circumference of the circular frame 41, compared to the traditional processing mode of unidirectional cutting by a single laser head, it is possible to achieve multi-point synchronous laser cutting of tubular materials in the circumferential direction. In the processing steps such as tube circumferential cutting and cutting, multiple laser cutting heads 45 work synchronously, which can simultaneously complete the circumferential multi-point melting and cutting of the tube, shorten the processing time of a single tube, and facilitate batch laser cutting.

[0075] After the tube is laser-cut, the hydraulic cylinder 43 is activated again. The contraction of the extension end of the hydraulic cylinder 43 can apply a pulling force to the laser processing host 44, causing the laser processing host 44 to drive the laser cutting head 45 to move outward and away from the tube.

[0076] Furthermore, the cut pipe section is placed on the V-shaped receiving plate 55, and the pipe section is removed by moving the trolley 53.

[0077] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A laser processing apparatus for processing tubular materials, characterized in that, include: The machine body (1) and the base (2) installed on the side of the machine body (1), the top of the base (2) and the end near the machine body (1) are equipped with a support roller (3) by rolling through the frame. A multi-point laser processing mechanism (4) includes a circular frame (41) and a rectangular opening (42). The circular frame (41) is detachably fixedly installed in the middle of the inner side of the machine body (1). The rectangular opening (42) is opened on the surface of the circular frame (41). A hydraulic cylinder (43) is fixedly installed on the surface of the circular frame (41) and near the rectangular opening (42). The telescopic end of the hydraulic cylinder (43) passes through the circular frame (41) and extends into its interior. A laser processing host (44) is fixedly installed on the telescopic end of the hydraulic cylinder (43). A laser cutting head (45) is installed at the end of the laser processing host (44). A V-shaped opening cover (46) is fixedly installed on the surface of the laser processing host (44) and near the laser cutting head (45). A ball bearing (47) is rolled at the V-shaped opening on the surface of the V-shaped opening cover (46). An elastic baffle plate (48) is fixedly connected to the outer side of the V-shaped opening cover (46). A lifting mechanism (5) is installed on the surface of the body (1) and on the side away from the base (2), and a rotary feeding mechanism (6) is installed on the top of the base (2).

2. The laser processing apparatus for processing tubular materials according to claim 1, characterized in that: The support roller (3) is installed at an angle, the laser processing host (44) passes through the center of the rectangular opening (42), there are three laser processing hosts (44), and the three laser processing hosts (44) are evenly distributed along the circumference of the circular frame (41), and the laser cutting head (45) passes through the center of the V-shaped opening cover (46).

3. The laser processing apparatus for processing tubular materials according to claim 1, characterized in that: The ball bearings (47) are evenly distributed at the V-shaped opening on the surface of the V-shaped opening cover (46). The elastic shield (48) is fan-shaped and the surface of the elastic shield (48) is a wavy curved surface.

4. The laser processing apparatus for processing tubular materials according to claim 1, characterized in that: The lifting mechanism (5) is used to support the tubular material that needs to be cut and to center the end of the tubular material; The lifting mechanism (5) includes a rectangular shell (51), which is fixedly installed on the side of the bottom of the surface of the machine body (1). A strip hole (52) is provided on the side of the top of the rectangular shell (51). A mobile trolley (53) is installed inside the rectangular shell (51). A lifter (54) is fixedly connected to the top of the mobile trolley (53). The lifter (54) passes through the strip hole (52). A V-shaped receiving plate (55) is fixedly installed on the output end of the lifter (54) and on the side close to the circular frame (41). A support centering cone (56) is rotatably installed on the top of the surface of the lifter (54). A spiral groove (57) is provided on the conical surface on the outer side of the support centering cone (56).

5. A laser processing apparatus for processing tubular materials according to claim 4, characterized in that: There are two mobile trolleys (53), and the two mobile trolleys (53) are symmetrically installed along the central axis of the rectangular shell (51). The lifting device (54) is installed vertically, and there are two lifting devices (54), and the two lifting devices (54) are symmetrically installed along the central axis of the rectangular shell (51).

6. A laser processing apparatus for processing tubular materials according to claim 4, characterized in that: The V-shaped receiving plate (55) is installed horizontally, the tip of the supporting centering cone (56) faces the center of the circular frame (41), and the spiral groove (57) is evenly distributed on the conical surface outside the supporting centering cone (56).

7. The laser processing apparatus for processing tubular materials according to claim 1, characterized in that: The rotary feeding mechanism (6) includes a linear guide rail (61) and a linear driver (62). The linear guide rail (61) is detachably fixedly installed on the side of the top of the base (2). The linear driver (62) is installed on the side of the top of the outer side. A servo motor (63) is slidably installed on the top of the linear guide rail (61). A conical bucket (64) is detachably fixedly installed at the output end of the servo motor (63). A telescopic device (65) is installed inside the conical bucket (64). A conical push block (66) is fixedly installed at the telescopic end of the telescopic device (65). An internal support assembly (67) is installed inside the conical bucket (64).

8. A laser processing apparatus for processing tubular materials according to claim 7, characterized in that: The linear guide (61) is installed horizontally. There are two linear guides (61), and the two linear guides (61) are installed symmetrically along the central axis of the base (2). The axis of the conical push block (66) coincides with the axis of the conical bucket (64). The output end of the linear driver (62) is fixedly installed on the bottom of the surface of the servo motor (63).

9. A laser processing apparatus for processing tubular materials according to claim 7, characterized in that: The inner support assembly (67) includes a swing rod (671), the outer end of which is hinged to the inner wall of the conical bucket (64), the surface of which is in contact with the conical surface of the outer side of the conical push block (66), a support elastic strip (672) is fixedly connected to the outer side of the swing rod (671) away from the inner wall of the conical bucket (64), a flexible protective strip (673) is fixedly connected to the surface of the support elastic strip (672), and a tension spring (674) is fixedly connected to the surface of the swing rod (671) near the support elastic strip (672).

10. A laser processing apparatus for processing tubular materials according to claim 9, characterized in that: The swing rod (671) is installed at an angle. There are three swing rods (671), and the three swing rods (671) are evenly distributed on the inner side of the conical bucket (64). The supporting elastic strip (672) is arc-shaped. The flexible protective strip (673) is installed at an angle. The material of the flexible protective strip (673) is rubber. The tension spring (674) is installed between the swing rod (671) and the flexible protective strip (673).

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