Laser groove pipe cutting machine based on five-axis linkage

Abstract

The invention relates to a laser groove pipe cutting machine based on five-axis linkage, and belongs to the technical field of five-axis linkage laser groove pipe cutting machines. The laser groove pipe cutting machine comprises a conveying support, and a plurality of telescopic grooves are formed in the left side and the right side of the top of the conveying support; supporting assemblies are fixedly embedded in the positions, located below the multiple telescopic grooves, of the front side and the rear side of the interior of the conveying support correspondingly, and each supporting assembly is composed of a conveying transverse pipe, a plurality of sets of supporting pistons, a liquid adding pipe, a pressure gauge, a liquid outlet pipe, a liquid inlet pipe and a liquid outlet pipe. The multiple sets of supporting pistons are fixedly installed at the top of the conveying transverse pipe at equal intervals, each set of supporting pistons is arranged on the lower side of the corresponding telescopic groove, and the liquid adding pipe is fixed to one end of the conveying transverse pipe. The technical problems that when a long pipeline is rigidly supported in a traditional mode, middle stress is concentrated, looseness is prone to occurring, the two ends of the pipeline tilt up, and the groove cutting error is large can be solved.

Description

Technical Field

[0001] This invention relates to the field of five-axis linkage laser beveling pipe cutting machine technology, specifically a laser beveling pipe cutting machine based on five-axis linkage. Background Technology

[0002] The five-axis linkage laser beveling and pipe cutting machine is a high-end equipment used for precision machining of long metal pipes. It is also one of the common laser beam processing devices. When processing pipes, the five-axis linkage laser beveling and pipe cutting machine can ensure the quality of pipe beveling through the internal intelligent heat treatment cutting laser head. It is also a common main processing device in intelligent heat treatment production lines.

[0003] When using a five-axis linkage laser beveling and pipe cutting machine to bevele pipes, for long pipe workpieces, the pipe support structure adopts a rigid support design. When supporting long pipes, the middle area of ​​the support structure has to bear the weight of the pipe itself and the additional load generated during the processing, which causes the middle support structure to be in a high stress load state for a long time.

[0004] After being subjected to high stress for a long time, the central support structure is prone to loosening, which can cause the two ends of the long pipe to tilt upwards relative to the support surface. When the pipe is in this tilted-up position, the relative position accuracy between the cutting trajectory and the pipe's reference axis will deviate when the five-axis linkage laser beveling and cutting machine performs beveling on the pipe. This will ultimately cause the key accuracy indicators such as the cutting size and angle of the pipe beveling to fail to meet the design requirements, seriously affecting the cutting accuracy of the pipe beveling and the adaptability of subsequent pipe assembly.

[0005] To address the aforementioned issues, we propose a laser beveling and pipe cutting machine based on five-axis linkage. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solution: a laser beveling pipe cutting machine based on five-axis linkage, including a conveying bracket, wherein the top of the conveying bracket is provided with several telescopic grooves on both the left and right sides, and the telescopic grooves arranged in front and behind are slidably mounted with conveying rollers; the front and rear sides inside the conveying bracket are both embedded and fixed with support components below the several telescopic grooves.

[0007] The support assembly consists of a conveying horizontal pipe, several sets of support pistons, a liquid filling pipe, and a pressure gauge. Several sets of support pistons are equidistantly fixed on the top of the conveying horizontal pipe, and each set of support pistons is located on the lower side of a corresponding telescopic groove. The liquid filling pipe is fixed to one end of the conveying horizontal pipe. The interior of the conveying horizontal pipe and the interior of the several support pistons are filled with silicone oil.

[0008] The top of the conveying bracket is fixedly mounted on both sides opposite to the conveying roller. A pulling frame is fixedly mounted on the top surface of the two conveying electric guide rails. A fixing opening is provided at the center of the top of the pulling frame, and a clamping component is provided inside the fixing opening. A pre-clamping frame is fixedly mounted on the top surface of the conveying bracket. A fixing plate is fixedly mounted on the side of the conveying bracket near the pre-clamping frame. An annular guide rail is embedded in the side of the fixing plate away from the pre-clamping frame. A processing plate is fixedly mounted on the output surface of the annular guide rail, and a laser processing component is provided on one side of the surface of the processing plate.

[0009] Furthermore, several telescopic grooves appear in pairs at the front and rear positions along the conveying direction on the conveying support, and the telescopic grooves in each group are arranged symmetrically with the center line of the width direction of the conveying support as the axis of symmetry, and several of the conveying rollers are set at the same horizontal level.

[0010] Furthermore, each of the conveying rollers is supported by telescopic grooves corresponding to its front and rear positions and can slide along the telescopic grooves.

[0011] Furthermore, the conveying horizontal tube extends along the length of the conveying bracket, and each group of supporting pistons consists of three pistons. The middle group of supporting pistons has the largest supporting contact surface, the supporting contact surfaces of the supporting pistons on both sides of the middle group decrease sequentially, and the outermost group of supporting pistons has the smallest supporting contact surface.

[0012] Furthermore, one end of the liquid filling tube extends through to the surface of the conveying support, and a pressure gauge is fixedly installed on the surface of the liquid filling tube for real-time observation of the pressure inside the conveying horizontal tube.

[0013] Furthermore, the pre-clamping frame is fixedly installed at the edge of the top surface of the conveying support.

[0014] Furthermore, the pre-clamping frame has movable openings on both the front and rear sides. In each movable opening, there are slidably installed holes on the inner walls of the upper and lower sides. Two corresponding holes in the same movable opening are slidably fitted with a limiting vertical rod. The two ends of the limiting vertical rod are fixedly connected to the upper and lower inner walls of the movable opening, respectively.

[0015] The extrusion tubes are rotatably mounted on the two movable blocks. A spring is sleeved on the outside of each limiting vertical rod. The elastic force of the spring acts on the block, driving the two extrusion tubes to move closer to each other, so as to provide a continuous clamping force on the pipe placed between them, thereby ensuring the stability of the pipe during the processing.

[0016] Furthermore, the clamping assembly includes two fixing slots fixedly installed on opposite sides of the fixing port, an electric telescopic rod is fixedly installed between the opposite surfaces of the two fixing slots, the output end of the electric telescopic rod is fixedly connected to a clamping shell, and a first reduction brake motor is fixedly installed inside the clamping shell;

[0017] The output end of the first deceleration brake motor is fixedly connected to a connecting hole plate, and a connecting rod is rotatably installed on the connecting hole plate by bolts. A clamping jaw assembly is fixedly installed at the end of the connecting rod.

[0018] The gripper assembly consists of two arc-shaped clamps, which mesh with each other through arc-shaped teeth at their ends to form a clamping structure that can be opened and closed synchronously.

[0019] Furthermore, guide vertical blocks are fixedly installed on both opposite sides of the top surface of the clamping shell, and the corresponding guide vertical blocks are slidably connected to the inner wall of the corresponding fixing groove block.

[0020] Furthermore, the laser processing assembly includes a first electric guide rail fixedly installed on the surface of the processing port plate, two second electric guide rails arranged perpendicularly to each other fixedly installed on the output surface of the first electric guide rail, a connecting vertical plate fixedly installed on the output surface of the two second electric guide rails, two push telescopic rods fixedly installed at the bottom of the connecting vertical plate, and a support hole plate fixedly installed at the output end of the two push telescopic rods.

[0021] A second reduction brake motor is fixedly installed on the inner wall of the support plate. The output end of the second reduction brake motor is fixedly connected to a support platform. An intelligent laser cutting head is rotatably installed on the top surface of the support platform. The bottom of the intelligent laser cutting head is provided with a rotating telescopic rod for driving its rotation.

[0022] A limiting rod structure is also connected between the supporting perforated plate and the connecting vertical plate to constrain the movement path of the supporting perforated plate and ensure that it moves smoothly in a predetermined direction under the drive of the push telescopic rod.

[0023] Compared with the prior art, the present invention provides a laser beveling and pipe cutting machine based on five-axis linkage, which has the following beneficial effects:

[0024] 1. This device utilizes a design where the contact surface of the central piston is larger than that of the pistons on both sides, which can specifically solve the technical problems of stress concentration in the middle, easy loosening, warping at both ends of the pipe, and large cutting errors in the bevel when using traditional rigid supports for long pipes.

[0025] By designing a structure where the contact surface of the central piston is larger than that of the two sides, and based on the principle of hydraulic transmission pressure balance, the central piston can provide greater support and load-bearing capacity under the same liquid pressure. This precisely matches the greater load requirements generated by the weight of the central part of the long pipeline, avoiding the problem of excessive stress concentration in the single central support structure in traditional rigid supports. At the same time, the liquid has good load transfer and dispersion characteristics, which can evenly distribute the overall load of the long pipeline to each piston support point, thereby reducing the local stress intensity in the central support area, reducing the risk of loosening of the support structure connection caused by long-term high stress, and extending the service life and stability of the support structure.

[0026] 2. This device prevents the pipe ends from tilting up, ensuring stable support during pipe processing. Compared to traditional rigid supports, liquid support offers flexibility and adaptability. It can adapt to the slight deflection of long pipes through the micro-deformation of the liquid, ensuring a tight fit between the support surface and the outer wall of the pipe. Furthermore, the ample central support force provided by the piston with a large contact surface in the middle effectively balances the weight distribution of the long pipe, preventing the pipe from sinking in the middle or tilting up at both ends due to insufficient central support force or stress concentration. This ensures that the long pipe maintains a horizontal and stable support posture throughout the processing, providing a precise reference posture for beveling.

[0027] 3. This device achieves precise control of the support force through fine adjustment of liquid pressure, which can ensure the stability of the support during the processing of long pipes and avoid the deviation of long pipes during the cutting process. It ensures that the cutting trajectory of the five-axis linkage laser cutting mechanism maintains a preset relative position with the pipe reference axis, significantly improves the cutting accuracy of the pipe bevel, ensures that the bevel after cutting meets the design requirements, and improves the adaptability and assembly quality of subsequent pipe assembly. Attached Figure Description

[0028] Figure 1 This is a front perspective view of the entire invention;

[0029] Figure 2 This is a top view of the entire invention;

[0030] Figure 3 This is a rear perspective view of the entire invention;

[0031] Figure 4 This is a perspective view of the unfolded pull frame of the present invention;

[0032] Figure 5 for Figure 4 Enlarged structural diagram of section A in the middle;

[0033] Figure 6 This is a perspective view of the first electric guide rail of the present invention;

[0034] Figure 7 for Figure 6Enlarged structural diagram of section B in the middle;

[0035] Figure 8 This is a perspective view of the pre-clamping frame of the present invention;

[0036] Figure 9 This is a vertical sectional perspective view of the pull frame of the present invention;

[0037] Figure 10 This is a front perspective view of the clamping shell of the present invention;

[0038] Figure 11 This is a rear perspective view of the clamping shell of the present invention;

[0039] Figure 12 This is a vertical sectional perspective view of the conveyor support of the present invention;

[0040] Figure 13 for Figure 12 Enlarged structural diagram of section C;

[0041] Figure 14 This is a perspective view of the conveying horizontal tube of the present invention;

[0042] Figure 15 This is a three-dimensional view of the intelligent laser cutting head of the present invention.

[0043] In the diagram: 1. Conveyor support; 2. Expansion trough; 3. Conveyor roller;

[0044] 4. Support assembly; 401. Conveying horizontal pipe; 402. Support piston; 403. Liquid filling pipe; 404. Pressure gauge;

[0045] 5. Electric conveyor rail; 6. Pulling frame; 7. Fixing port;

[0046] 8. Clamping assembly; 801. Fixing slot block; 802. Electric telescopic rod; 803. Clamping shell; 804. First reduction brake motor; 805. Connecting hole plate; 806. Connecting rod; 807. Gripper assembly; 8071. Arc-shaped clamp; 8072. Arc-shaped tooth; 808. Guide vertical block;

[0047] 9. Pre-clamping frame; 901. Moving port; 902. Hole block; 903. Limiting vertical rod; 904. Extrusion tube; 905. Spring;

[0048] 10. Fixed end plate; 11. Circular guide rail; 12. Machining end plate;

[0049] 13. Laser processing components; 1301. First electric guide rail; 1302. Second electric guide rail; 1303. Connecting vertical plate; 1304. Push telescopic rod; 1305. Supporting hole plate; 1306. Second geared brake motor; 1307. Support platform; 1308. Intelligent laser cutting head; 1309. Rotating telescopic rod. Detailed Implementation

[0050] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0051] Please see Figures 1 to 14 The laser beveling pipe cutting machine based on five-axis linkage in this embodiment includes a conveying support 1. The top of the conveying support 1 has several telescopic grooves 2 on both the left and right sides. The telescopic grooves 2 arranged in front and behind are slidably mounted on the conveying rollers 3. Each conveying roller 3 is supported by the telescopic grooves 2 corresponding to its front and back positions and can slide along the telescopic grooves 2. The front and back sides inside the conveying support 1 are embedded and fixed with support components 4 below the several telescopic grooves 2. The several telescopic grooves 2 appear in pairs on the conveying support 1 along its conveying direction. The telescopic grooves 2 in each group are symmetrically arranged with the center line of the width direction of the conveying support 1 as the axis of symmetry. The several conveying rollers 3 are set at the same horizontal level.

[0052] The support assembly 4 comprises a conveying horizontal pipe 401, several sets of support pistons 402, a liquid filling pipe 403, and a pressure gauge 404. The sets of support pistons 402 are equidistantly fixed on the top of the conveying horizontal pipe 401, with each set positioned below a corresponding telescopic groove 2. The liquid filling pipe 403 is fixed to one end of the conveying horizontal pipe 401. The interior of the conveying horizontal pipe 401 and the interiors of the support pistons 402 are filled with silicone oil. The conveying horizontal pipe 401 extends along the length of the conveying support 1. Each set of support pistons 402 consists of three pistons. The middle set of support pistons 402 has the largest support contact surface. The support contact surfaces of the support pistons 402 on both sides of the middle set decrease sequentially, while the outermost set of support pistons 402 has the smallest support contact surface. This design helps to form a gradient support force distribution. The telescopic end of each set of support pistons 402 is fixedly connected to the bottom of the corresponding conveying roller 3. One end of the liquid filling pipe 403 extends through to the surface of the conveying bracket 1, and the pressure gauge 404 is fixedly installed on the surface of the liquid filling pipe 403 for real-time observation of the pressure inside the conveying horizontal pipe 401.

[0053] The support assembly 4 provides support force through the conveying horizontal pipe 401, support piston 402 and silicone oil. The static pressure is equal throughout the structure. Since the support piston 402 in the middle group has the largest effective working area, it generates the largest upward thrust under the same pressure. The working areas of the pistons on both sides are the second largest. This makes the distribution of support force automatically match the distribution of bending moment caused by the weight of the long pipe, realizes the adaptive load-equal support of the pipe, effectively avoids local stress concentration, and improves the rigidity and stability of the support.

[0054] Among them, the top of the conveying bracket 1 is fixedly installed on both sides opposite to the conveying roller 3, and the top surfaces of the two conveying electric guide rails 5 are fixedly installed on the same pull frame 6. The center of the top of the pull frame 6 is provided with a fixing port 7, and the inside of the fixing port 7 is provided with a clamping assembly 8. The clamping assembly 8 includes two fixing slot blocks 801 fixedly installed on opposite sides of the fixing port 7. The opposite surfaces of the two fixing slot blocks 801 are fixedly installed with an electric telescopic rod 802. The output end of the electric telescopic rod 802 is fixedly connected to a clamping shell 803. The opposite sides of the top surface of the clamping shell 803 are fixedly installed with guide vertical blocks 808, and the corresponding guide vertical blocks 808 are slidably connected to the inner wall of the corresponding fixing slot block 801. The clamping shell 803 is fixedly installed with a first reduction brake motor 804.

[0055] The output end of the first reduction brake motor 804 is fixedly connected to a connecting hole plate 805. A connecting rod 806 is rotatably installed on the connecting hole plate 805 by bolts. A gripper assembly 807 is fixedly installed at the end of the connecting rod 806.

[0056] The gripper assembly 807 consists of two arc-shaped grippers 8071. The two arc-shaped grippers 8071 mesh with each other through arc-shaped teeth 8072 provided at their ends to form a gripping structure that can be opened and closed synchronously.

[0057] A pre-clamping frame 9 is fixedly installed on the top surface of the conveying support 1. The pre-clamping frame 9 is fixedly installed at the edge of the top surface of the conveying support 1. Movable openings 901 are provided on both the front and rear sides of the pre-clamping frame 9. In each movable opening 901, holes 902 are slidably installed on the inner walls of the upper and lower sides. Two corresponding holes 902 located in the same movable opening 901 are slidably fitted with a limiting vertical rod 903. The two ends of the limiting vertical rod 903 are fixedly connected to the upper and lower inner walls of the movable opening 901, respectively.

[0058] The extrusion tubes 904 are rotatably mounted on the two movable ports 901 and the hole blocks 902 located in the two movable ports 901. On each limiting vertical rod 903, a spring 905 is sleeved on the outside of the hole block 902. The elastic force of the spring 905 acts on the hole block 902, driving the two extrusion tubes 904 to move closer to each other, so as to provide a continuous clamping force on the pipe placed between them, thereby ensuring the stability of the pipe during the processing.

[0059] A fixed port plate 10 is fixedly installed on the side of the conveying bracket 1 closest to the pre-clamping frame 9, and an annular guide rail 11 is embedded on the side of the fixed port plate 10 away from the pre-clamping frame 9. A processing port plate 12 is fixedly installed on the output surface of the annular guide rail 11, and a laser processing component 13 is provided on one side of the surface of the processing port plate 12.

[0060] The laser processing assembly 13 includes a first electric guide rail 1301 fixedly installed on the surface of the processing port plate 12. Two second electric guide rails 1302 are fixedly installed on the output surface of the first electric guide rail 1301 and arranged perpendicularly to each other. A connecting vertical plate 1303 is fixedly installed on the output surface of the two second electric guide rails 1302. Two push telescopic rods 1304 are fixedly installed at the bottom of the connecting vertical plate 1303. A support hole plate 1305 is fixedly installed on the output end of the two push telescopic rods 1304.

[0061] A second reduction brake motor 1306 is fixedly installed on the inner wall of the support plate 1305. The output end of the second reduction brake motor 1306 is fixedly connected to a support platform 1307. An intelligent laser cutting head 1308 is rotatably installed on the top surface of the support platform 1307. The bottom of the intelligent laser cutting head 1308 is provided with a rotating telescopic rod 1309 for driving its rotation.

[0062] A limit rod structure is also connected between the support plate 1305 and the connecting vertical plate 1303 to constrain the movement path of the support plate 1305 and ensure that it moves smoothly in a predetermined direction under the drive of the push telescopic rod 1304.

[0063] The intelligent laser cutting head 1308 achieves two-dimensional horizontal movement adjustment through a double-layer electric guide rail structure, providing a basis for processing position calibration. The first electric guide rail 1301, fixed to the surface of the processing plate 12, serves as a primary drive mechanism, which can drive two mutually perpendicular second electric guide rails 1302 on its output surface to move linearly along their extension direction. The two second electric guide rails 1302 are arranged vertically to form a two-dimensional drive coordinate system on the horizontal plane. The connecting vertical plate 1303, connected to its common output surface, can achieve precise positioning at any position in the horizontal direction under the coordinated drive of the two second electric guide rails 1302, thereby driving the subsequent connected components to complete the horizontal position adjustment synchronously, ensuring that the intelligent laser cutting head 1308 can quickly move to the corresponding horizontal coordinate of the area to be processed.

[0064] The two push-telescopic rods 1304 fixed at the bottom of the connecting vertical plate 1303 are vertical drive components. They adopt a synchronous telescopic design and can drive the support plate 1305 connected to their output ends to move up and down in the vertical direction. This adjusts the height of the support plate 1305 and the subsequent connected laser cutting components, so that the intelligent laser cutting head 1308 fits the processing height requirements of the workpiece to be processed. At the same time, the limiting rod structure connecting the support plate 1305 and the connecting vertical plate 1303 plays a guiding and constraining role. This structure can strictly limit the movement path of the support plate 1305, effectively preventing it from deviating or shaking due to uneven force or external interference during vertical lifting. This ensures that the support plate 1305 always moves smoothly in the predetermined vertical direction under the drive of the push-telescopic rods 1304, thus guaranteeing the subsequent processing accuracy.

[0065] The second reduction brake motor 1306, fixed to the inner wall of the support plate 1305, is the core of the rotary drive. It has the functions of speed reduction and torque increase, as well as brake positioning. Its output end is directly connected to the support platform 1307, which can drive the support platform 1307 to rotate around the motor output shaft. This, in turn, drives the intelligent laser cutting head 1308, which is rotated and mounted on the top surface of the support platform 1307, to adjust its angle in the horizontal circumferential direction. This allows the cutting head to be aligned with the processing position of the workpiece in different directions. At the same time, the rotating telescopic rod 1309 set at the bottom of the intelligent laser cutting head 1308 serves as a posture fine-tuning component. One end is connected to the bottom of the cutting head, and the other end can be telescopically driven through a fixed fulcrum. This drives the intelligent laser cutting head 1308 to pitch and rotate around the rotation connection point between itself and the support platform 1307, achieving precise fine-tuning of the cutting angle and meeting the processing requirements of different tilt angles.

[0066] The working principle of the above embodiments is as follows:

[0067] When the device is in use, the pipe to be processed is placed on the conveying plane composed of multiple conveying rollers 3, which provides a stable foundation for the pipe to move.

[0068] The support assembly 4 below the conveying roller 3 inside the conveying bracket 1 consists of a conveying horizontal pipe 401 and multiple sets of support pistons 402 at its top, forming a closed hydraulic circulation structure. The support assembly 4 is filled with silicone oil, which is injected or discharged into the support assembly 4 through an external filling pipe 403. The pressure inside the support assembly 4 is monitored in real time by a pressure gauge 404, which can accurately control the oil pressure in all support pistons 402 and the conveying horizontal pipe 401. This allows for adjustment of the pressure inside the support assembly 4 according to the weight of the pipe. The telescopic end of each support piston 402 is directly connected to the bottom of the corresponding conveying roller 3. Each group of three support pistons 402 adopts a gradient support surface design with a larger middle section and smaller sides, which optimizes the load distribution and enhances the support effect of the support assembly 4.

[0069] By designing a structure where the contact surface of the central piston is larger than that of the two sides, and based on the principle of hydraulic transmission pressure balance, the central piston can provide greater support and load-bearing capacity under the same liquid pressure. This precisely matches the greater load requirements generated by the self-weight of the central part of the long pipe, avoiding the problem of excessive stress concentration in the single central support structure in traditional rigid supports. At the same time, the liquid has good load transfer and dispersion characteristics, which can evenly distribute the overall load of the long pipe to each piston support point, thereby reducing the local stress intensity in the central support area, reducing the risk of loosening of the support structure connection caused by long-term high stress, and extending the service life and stability of the support structure.

[0070] When the pipe fitting is transported to the pre-processing area, the extrusion tubes 904 on the upper and lower sides of the pre-clamping frame 9, under the elastic force of the internal springs 905, can ensure that the end of the pipe fitting is initially fixed, providing continuous elastic clamping force for the pipe fitting. This process does not require external power and can achieve rapid and adaptive initial fixing, preventing the pipe fitting from rolling during subsequent precise positioning.

[0071] The movement of the aforementioned pipe fittings is mainly driven by the pulling frame 6 on the top of the two electric conveying guide rails 5 installed on the conveying support 1. The pulling frame 6 drives the clamping assembly 8 on it to move above the pipe fitting to be clamped. By extending the electric telescopic rod 802, the clamping shell 803 is driven to descend, so that the gripper assembly 807 installed at the end of the connecting rod 806 approaches the end of the pipe fitting. The two arc-shaped clamps 8071 of the gripper assembly 807 engage through the arc-shaped teeth 8072 at the end, and close synchronously under the drive of the first reduction brake motor 804, firmly gripping the pipe fitting. Because the first reduction brake motor 804 can drive the connecting hole plate 805 to rotate, it can drive the gripper assembly 807 to rotate as a whole, thereby clamping the pipe fitting.

[0072] After clamping the pipe fitting, the electric telescopic rod 802 retracts, raising one end of the pipe fitting to a certain height, making it easier to pull the pipe fitting. Utilizing the rotational conveying effect of the conveying roller 3, the pipe fitting can be conveyed to the pre-clamping frame 9 position, facilitating the next step of processing.

[0073] The laser processing assembly 13 is mounted on the processing plate 12, which can move along the annular guide rail 11. The annular guide rail 11 allows the entire laser processing assembly 13 to move in a circular motion around the clamped tube, which ensures multi-position cutting on the side of the tube. The laser processing assembly 13 drives the connecting vertical plate 1303 and its connected structure to move rapidly in a two-dimensional plane through the combined movement of the first electric guide rail 1301 and two mutually perpendicular second electric guide rails 1302, reaching the target area.

[0074] Two telescopic rods 1304 work together to drive the support plate 1305 and its cutting head to move precisely in the horizontal direction, so as to adjust the optimal working distance between the laser focus and the surface of the pipe. The limiting rod structure ensures the stability of the support plate 1305 during movement. The intelligent laser cutting head 1308 on the top of the support platform 1307 can be tilted or yawed by the drive of the rotating telescopic rod 1309. The second reduction brake motor 1306 on the inner wall of the support plate 1305 can drive the support platform 1307 and the intelligent laser cutting head 1308 to rotate horizontally as a whole. The laser processing component 13 provides a five-axis processing effect for the intelligent laser cutting head 1308. This effect is a mature technology, so this application will not elaborate on it. This application mainly highlights the use of the innovative structure.

[0075] After the pipe fitting is processed, the processed pipe fitting can be pulled out directly through the clamping assembly 8, making it convenient to process the next pipe fitting.

[0076] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. Laser bevel cutting pipe machine based on five-axis linkage, comprising a conveying support (1), characterized in that: The conveying support (1) top is provided with a plurality of expansion slots (2) on both sides, the front and rear corresponding expansion slots (2) are jointly and slidably installed with conveying rollers (3), and the front and rear sides of the conveying support (1) are embedded with support assemblies (4) below the expansion slots (2). The support assembly (4) is composed of a conveying horizontal pipe (401), a plurality of support pistons (402), a liquid adding pipe (403), a pressure gauge (404), and a plurality of support pistons (402) equidistantly fixed on the top of the conveying horizontal pipe (401), and each group of support pistons (402) is arranged on the downside of the corresponding expansion slot (2), the liquid adding pipe (403) is fixed on one end of the conveying horizontal pipe (401), and the interiors of the conveying horizontal pipe (401) and the plurality of support pistons (402) are filled with silicone oil. The conveying support (1) top is provided with a plurality of expansion slots (2) on both sides, the front and rear corresponding expansion slots (2) are jointly and slidably installed with conveying rollers (3), and the front and rear sides of the conveying support (1) are embedded with support assemblies (4) below the expansion slots (2).

2. The five-axis laser bevel pipe cutting machine according to claim 1, characterized in that: A plurality of expansion slots (2) are arranged in pairs on the conveying support (1) in the front and rear positions along the conveying direction, and the expansion slots (2) in each group are symmetrically arranged with the center line of the width direction of the conveying support (1) as the axis of symmetry, and a plurality of conveying rollers (3) are arranged in the same horizontal direction.

3. The five-axis laser bevel pipe cutting machine of claim 1, wherein: Each conveying roller (3) is supported by the corresponding expansion slots (2) at the front and rear positions and can slide along the expansion slots (2).

4. The five-axis laser bevel pipe cutting machine of claim 1, wherein: The conveying horizontal pipe (401) extends along the length direction of the conveying support (1), each group of support pistons (402) is arranged in three groups, the support pistons (402) in the middle group have the largest support contact surface, the support contact surfaces of the support pistons (402) on both sides of the middle group decrease in turn, and the support pistons (402) at the most edge have the smallest support contact surface.

5. The five-axis laser bevel pipe cutting machine of claim 1, wherein: One end of the liquid adding pipe (403) extends through the surface of the conveying support (1), and the pressure gauge (404) is fixedly installed on the surface of the liquid adding pipe (403) for real-time observation of the pressure in the conveying horizontal pipe (401).

6. The five-axis laser bevel pipe cutting machine of claim 1, wherein: The pre-clamping frame (9) is fixedly installed on the edge of the top surface of the conveying support (1).

7. The five-axis laser bevel pipe cutting machine of claim 1, wherein: The front and back of the pre-clamping frame (9) are provided with moving openings (901), and the upper and lower inner walls of each moving opening (901) are slidably provided with hole blocks (902); the upper and lower hole blocks (902) in the same moving opening (901) are slidably provided with a limiting vertical rod (903); and the two ends of the limiting vertical rod (903) are fixedly connected with the upper and lower inner walls of the moving opening (901). The hole blocks (902) in the two moving openings (901) are rotatably provided with extrusion pipes (904); the outer sides of the hole blocks (902) on each limiting vertical rod (903) are provided with springs (905); the elastic force of the spring (905) acts on the hole block (902) to drive the two extrusion pipes (904) to move relatively close to each other to provide a continuous clamping force to the pipeline therebetween, thereby ensuring the stability of the pipeline during processing.

8. The five-axis laser bevel pipe cutting machine of claim 1, wherein: The clamping assembly (8) comprises two fixed groove blocks (801) fixedly installed on opposite sides of the fixed opening (7); an electric telescopic rod (802) is fixedly installed between the opposite faces of the two fixed groove blocks (801); a clamping shell (803) is fixedly connected to the output end of the electric telescopic rod (802); and a first speed reduction brake motor (804) is fixedly installed in the clamping shell (803). The output end of the first speed reduction brake motor (804) is fixedly connected with a connecting hole plate (805); the connecting hole plate (805) is rotatably installed with a connecting rod (806) through bolts; and a clamping jaw group (807) is fixedly installed at the end of the connecting rod (806). The clamping jaw group (807) is composed of two arc-shaped clamps (8071); the arc-shaped teeth (8072) provided at the ends of the two arc-shaped clamps (8071) are intermeshed with each other to form a synchronous opening and closing clamping structure.

9. The five-axis laser bevel pipe cutting machine of claim 8, wherein: Opposite sides of the top surface of the clamping shell (803) are fixedly installed with guide vertical blocks (808), and the guide vertical blocks (808) are slidably connected with the inner walls of the fixed groove blocks (801).

10. The five-axis laser bevel pipe cutting machine of claim 1, wherein: The laser processing assembly (13) comprises a first electric guide rail (1301) fixedly installed on the surface of the processing opening plate (12); two second electric guide rails (1302) are fixedly installed on the output surface of the first electric guide rail (1301) and arranged perpendicular to each other; a connecting vertical plate (1303) is fixedly installed on the output surfaces of the two second electric guide rails (1302); two push telescopic rods (1304) are fixedly installed at the bottom of the connecting vertical plate (1303); and a supporting hole plate (1305) is fixedly installed on the output ends of the two push telescopic rods (1304). The inner wall of the support hole plate (1305) is fixedly installed with a second deceleration holding brake motor (1306), the output end of the second deceleration holding brake motor (1306) is fixedly connected with a support table (1307), the top surface of the support table (1307) is rotatably installed with an intelligent laser cutting head (1308), the bottom of the intelligent laser cutting head (1308) is provided with a rotary telescopic rod (1309) for driving the rotation of the intelligent laser cutting head (1308); The support hole plate (1305) and the connecting vertical plate (1303) are further connected with a limiting rod structure for restricting the movement path of the support hole plate (1305) and ensuring smooth movement of the support hole plate (1305) in a predetermined direction under the driving of the pushing telescopic rod (1304).

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