Intelligent laser cutting equipment and method based on sewage suction pipe processing of washing and sweeping vehicle

Abstract

The application relates to the field of laser cutting, and particularly discloses an intelligent laser cutting device and method based on sewage suction pipe processing of a washing and sweeping vehicle, which comprises a laser head, a two-axis track and a walking piece. The walking piece drives the laser head to form a cutting path on a base material under the drive of the two-axis track. The laser head forms a rectangular material on the base material after completing the cutting path. The cutting path forms a pipe joint seam with an interlocking structure at two ends of the rectangular material. The cutting path side of the base material is provided with a heat conduction piece for conducting the heat accumulation of the laser cutting part on the base material. An extension part is arranged at one end of the heat conduction piece close to the joint seam. The side surface shape of the extension part is matched with the shape of the joint seam, and the extension part is used for locally dissipating heat of the interlocking structure. The one end of the heat conduction piece away from the joint seam is provided with an upward lifting part. The joint seam with the interlocking structure is arranged at the two ends of the rectangular material, and the joint seam is locked after welding. The welding points can be effectively protected when high-intensity impact is encountered, the mechanical strength of the pipe joint is significantly enhanced, and the production cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, and in particular to an intelligent laser cutting device and method based on the processing of a sweeper truck's suction pipe. Background Technology

[0002] Intelligent laser cutting equipment is a precision manufacturing tool that integrates advanced laser technology and artificial intelligence algorithms. Using a high-energy-density laser beam as its core cutting tool, it achieves full-process autonomy and precision from drawing input to cutting completion through the integration of an intelligent control system, multi-dimensional sensors, and industrial IoT modules. Its AI algorithm automatically identifies material properties (such as thickness and reflectivity), optimizes the cutting path, and dynamically adjusts parameters such as power and speed through real-time monitoring and feedback (such as temperature and molten pool state), adapting to the processing of complex curved surfaces, micro-holes, or irregularly shaped parts. Combined with the high-precision motion control of robotic arms or CNC platforms, it can achieve micron-level cuts and efficient cutting without thermal damage on materials such as metals (stainless steel, aluminum alloys, etc.) and non-metals (acrylic, composite materials).

[0003] To cope with the impact of various types of garbage on the road, it is necessary to use metal materials to make the suction pipe. The first step in processing this suction pipe is to laser cut the sheet material.

[0004] The existing process for processing metal suction pipes using laser cutting involves cutting rectangular materials. For example, prior art publication CN121607806A discloses a laser cutting device for intelligent manufacturing. This device includes a main body and a laser cutter, as well as a first support and a second support. The upper ends of the first and second supports are respectively provided with multiple first support bars and second support bars, which are arranged alternately. The main body of the device is provided with a first driving mechanism for driving the first and second supports to move towards or away from each other. The main body of the device is provided with a mounting base, a second driving mechanism for driving the mounting base to move, and a housing movably mounted on the mounting base. The housing is provided with multiple cleaning units, each of which includes a cleaning wheel that can elastically press against the upper part of the corresponding support bar.

[0005] After cutting, the material is bent into a tube and then welded at the joint. However, there is a problem: because the suction pipe is in frequent contact with garbage, and the garbage will collide with the pipe wall under the action of strong suction, the weld position is not reliable because there is no self-locking structure at the weld position. Although there is a seamless steel pipe technology, the cost is relatively high and it is not suitable for the preparation of sweepers. Therefore, a laser cutting device that can process high-strength metal suction pipes is needed. Summary of the Invention

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0007] This invention provides an intelligent laser cutting device and method for processing sewage suction pipes from sweeper trucks, which solves the problem that existing laser cutting equipment cannot produce high-strength metal sewage suction pipes. The specific solution is as follows: On one hand, the present invention provides an intelligent laser cutting device based on the processing of sewage suction pipes of sweeper trucks, including a laser head, two-axis tracks and a traveling component. The two-axis tracks include a horizontal axis that moves along the feeding direction of the cutting bed and a vertical axis that moves along the depth direction of the cutting bed. The traveling component is mounted on the vertical axis. Driven by the two-axis tracks, the traveling component drives the laser head to form a cutting path on the substrate. After the laser head completes the cutting path, a rectangular material is formed on the substrate. The cutting path forms a pipe joint with an interlocking structure at both ends of the rectangular material. A heat-conducting component is provided on one side of the cutting path of the substrate to dissipate the heat accumulated in the laser-cut part on the substrate.

[0008] Preferably, the end of the heat-conducting component near the joint has an extension, the side shape of which matches the shape of the joint, for local heat dissipation of the interlocking structure. The end of the heat-conducting component away from the joint has an upward curve, thereby separating the heat-conducting component from the substrate and increasing the heat dissipation area.

[0009] Preferably, the width of the substrate matches the length of the pipe fitting. The pipe fitting is formed by winding a rectangular material after cutting. Two opposite edges of the rectangular material serve as the pipe openings of the pipe fitting, and the other two ends serve as the joints of the pipe fitting. The joints are welded to form the pipe fitting.

[0010] Preferably, there are two heat-conducting components, which are respectively disposed at the upper and lower ends of the substrate. The shape of the heat-conducting components matches the shape of the joint, and the two heat-conducting components clamp the substrate.

[0011] Preferably, after the laser head processes multiple rectangular materials, the seams at the adjacent ends of two adjacent rectangular materials overlap, thereby improving the utilization rate of the substrate.

[0012] Preferably, the cutting bed has a feed inlet and a discharge outlet at both ends. The cutting bed is divided into a cutting area and a conveying area. Several conveying rollers are installed in the conveying area, and clamping rollers are installed in the cutting area. The feed inlet is used to convey the substrate to the area below the laser head. After the laser head cuts the substrate into rectangular materials, they are conveyed to the discharge outlet by the conveying rollers and discharged.

[0013] Preferably, a heat-conducting cavity is provided inside the extension, and the heat-conducting cavity is filled with heat-conducting liquid. The heat-conducting liquid inside the heat-conducting cavity conducts heat away from the cut portion of the substrate.

[0014] Preferably, a heat dissipation channel is provided above the heat conduction cavity, and the heat dissipation channel extends away from the substrate. A heat dissipation groove is provided at the end of the heat conduction component away from the substrate. The heat dissipation groove has several heat dissipation fins for dissipating heat conduction liquid inside the heat dissipation channel. A negative pressure cavity is also provided at the inner end of the heat dissipation channel. A sealing block is slidably connected inside the negative pressure cavity. The heat conduction liquid fills the heat dissipation channel and the interior of the heat conduction cavity.

[0015] Preferably, a drive rod is slidably installed inside the heat-conducting component. The drive rod can reciprocate along the depth direction of the heat-conducting component. The drive rod is fixed to the sealing block through a connecting rod, thereby driving the sealing block to reciprocate within the negative pressure chamber, allowing the heat-conducting fluid inside the heat dissipation channel and the heat-conducting chamber to flow fully and improving the heat dissipation efficiency of the heat-conducting fluid.

[0016] On the other hand, the present invention provides an intelligent laser cutting method based on the processing of a sweeper truck's suction pipe, comprising the following steps: S1. A substrate is provided, which is placed on a cutting bed and configured with two-axis tracks. The two-axis tracks include a horizontal axis extending along the feeding direction of the cutting bed and a vertical axis extending along the depth direction of the cutting bed. The horizontal axis and the vertical axis respectively drive the traveling component to move in the corresponding direction. S2. Mount the laser head onto the traveling component, so that the laser head, driven by the traveling component in conjunction with the two-axis track, forms a preset cutting path on the surface of the substrate. S3. Control the laser head to perform laser cutting on the substrate along the cutting path. After the cutting is completed, a rectangular material is separated from the substrate, and the cutting path forms a pipe joint with an interlocking structure at both ends of the rectangular material, which is used to achieve welding and fixing between pipes. S4. A heat-conducting component is provided on one side of the cutting path of the substrate to conduct heat generated in the cut part of the substrate during laser cutting, so as to suppress the deformation or performance degradation of the substrate caused by local overheating.

[0017] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: 1. This invention sets an interlocking structure at both ends of a rectangular material to form a lock after welding. This effectively protects the weld points when subjected to high-intensity impacts, significantly enhances the mechanical strength of the pipe fitting, and reduces production costs.

[0018] 2. By setting up heat-conducting components and extensions, both of which are made of copper alloy, this invention can fit the shape of the joint, focusing on heat dissipation at the narrowing part of the interlocking structure, dissipating the heat accumulated during laser cutting, and avoiding the risk of metal thermal fatigue and fracture caused by high temperature.

[0019] 3. By setting up two heat-conducting components at the top and bottom and adjusting their positions through a linear drive assembly, this invention can flexibly adapt to substrates of different thicknesses, expand the applicability of the equipment, and improve processing compatibility.

[0020] 4. When the laser head of the present invention cuts multiple rectangular materials, the adjacent seams overlap, reducing substrate loss; the substrate width matches the pipe length, further reducing the scrap rate.

[0021] 5. This invention makes the walking component hollow, and drives the laser head to extend and retract through the first telescopic component and the second telescopic component. When not in use, it is completely stored in the walking component, avoiding external damage and improving durability.

[0022] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a perspective view of the entire invention; Figure 2 This is a cross-sectional view of the walking component of the present invention; Figure 3 This is a top view of the substrate of the present invention; Figure 4 This is a perspective view of the heat-conducting component and the substrate of the present invention; Figure 5 This is a schematic diagram illustrating the processing of the pipe fitting of the present invention; Figure 6 This is a perspective view of the walking component and the substrate of the present invention; Figure 7 This is a cross-sectional view of the heat-conducting component and the substrate of the present invention; Figure 8 This is a partially enlarged cross-sectional view of the heat-conducting component and the substrate of the present invention; Figure 9 This is a schematic diagram of the internal structure of the heat-conducting component of the present invention; Figure 10 This is a schematic diagram of the structure of the drive sleeve of the present invention.

[0024] The accompanying figure is labeled as follows: 1. Laser head; 2. Two-axis track; 3. Traveling component; 4. Cutting bed; 5. Horizontal axis; 6. Vertical axis; 7. Substrate; 8. Rectangular material; 9. Interlocking structure; 10. Seam; 11. Heat-conducting component; 12. First telescopic component; 13. Shrink plate; 14. Extension; 15. Lifting; 16. Pipe fitting; 17. Feed inlet; 18. Discharge outlet; 19. Conveying roller; 20. Clamping roller; 21. Heat-conducting cavity; 22. Heat dissipation channel; 23. Heat dissipation groove; 24. Heat dissipation fins; 25. Negative pressure cavity; 26. Sealing block; 27. Drive rod; 28. Connecting rod; 29. ​​Drive column; 30. Wave groove; 31. Drive sleeve; 32. Servo motor; 33. Drive block; 34. Second telescopic component. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of the present invention and, together with the embodiments of the present invention, serve to illustrate the principles of the present invention.

[0026] Example 1: As Figure 1 , Figure 2 , Figure 3 As shown, this embodiment provides an intelligent laser cutting device based on the processing of a sweeper's suction pipe, including a laser head 1, two-axis tracks 2, and a traveling component 3. The two-axis tracks 2 include a horizontal axis 5 that moves along the feeding direction of the cutting bed 4 and a vertical axis 6 that moves along the depth direction of the cutting bed 4. The traveling component 3 is mounted on the vertical axis 6. Driven by the two-axis tracks 2, the traveling component 3 drives the laser head 1 to form a cutting path on the substrate 7. After the laser head 1 completes the cutting path, a rectangular material 8 is formed on the substrate 7. The cutting path forms a seam 10 with an interlocking structure 9 at both ends of the rectangular material 8. A heat-conducting component 11 is provided on one side of the cutting path of the substrate 7 to dissipate the heat accumulated in the laser-cut part on the substrate 7.

[0027] like Figure 2 As shown, the interior of the walking component 3 is hollow. A first telescopic component 12 and a shrink plate 13 are fixedly connected above the laser head 1. The shrink plate 13 is slidably connected to the middle of the walking component 3. A second telescopic component 34 is fixedly connected between the shrink plate 13 and the inner wall of the walking component 3. The first telescopic component 12 drives the laser head 1 to move up and down, so that the laser head 1 can be inserted into the walking component 3. The second telescopic component 34 drives the shrink plate 13 to move laterally, so that the laser head 1 can be completely stored in the walking component 3. When not in use, it can fully protect the laser head 1 and improve its service life.

[0028] like Figure 4As shown, the heat-conducting component 11 has an extension 14 at one end near the joint 10. Both the heat-conducting component 11 and the extension 14 are made of metal, preferably copper alloy, to improve thermal conductivity. The side shape of the extension 14 matches the shape of the joint 10 and is used to dissipate heat locally on the interlocking structure 9, especially the narrowed part of the interlocking structure 9. This part is prone to metal thermal fatigue under the high heat of laser cutting, which leads to a decrease in mechanical properties and easy breakage. Therefore, the heat-conducting component 11 is required to conduct heat efficiently on this part.

[0029] The end of the heat-conducting element 11 away from the joint 10 has an upward protrusion 15, thereby separating the heat-conducting element 11 from the substrate 7 and increasing the heat dissipation area.

[0030] like Figure 5 As shown, the width of the substrate 7 matches the length of the pipe fitting 16 to be processed. The pipe fitting 16 is formed by winding a rectangular material 8 after cutting. Two opposing edges of the rectangular material 8 serve as the openings of the pipe fitting 16. The joint 10 is welded to form the pipe fitting 16. The pipe fitting 16 formed by welding in this way is locked by the interlocking structure 9 at both ends. When encountering high-intensity impact, the interlocking structure 9 can fully protect the weld points, significantly enhancing their mechanical strength. Moreover, the production cost is lower than that of seamless steel pipes.

[0031] like Figure 6 As shown, there are two heat-conducting elements 11, which are respectively disposed at the upper and lower ends of the substrate 7, and the two heat-conducting elements 11 can clamp the substrate.

[0032] As one possible embodiment, the two heat-conducting elements 11 can be adjusted in vertical position via a linear drive assembly (not shown in the figure), thus facilitating adaptation to substrates 7 of different thicknesses.

[0033] like Figure 3 As shown, after the laser head 1 processes multiple rectangular materials 8, the seams 10 at the adjacent ends of two adjacent rectangular materials 8 overlap, thereby improving the utilization rate of the substrate 7. As described above, "the width of the substrate 7 matches the length of the tube 16 to be processed", so the substrate 7 can be fully utilized and the loss can be minimized.

[0034] like Figure 1 , Figure 2 As shown, the cutting bed 4 has a feed inlet 17 and a discharge outlet 18 at both ends. The cutting bed 4 is divided into a cutting area and a conveying area. Several conveying rollers 19 are installed in the conveying area, and clamping rollers 20 are installed in the cutting area. The feed inlet 17 is used to convey the substrate 7 to be cut to the area below the laser head 1. After the laser head 1 cuts the substrate 7 into rectangular materials 8, they are conveyed to the discharge outlet 18 by the conveying rollers 19 and then discharged.

[0035] It should be noted that both the conveying roller 19 and the clamping roller 20 in the above scheme are driven by a drive source, which can be a motor (not shown in the figure).

[0036] like Figure 7 , Figure 8 As shown, a heat-conducting cavity 21 is provided inside the extension 14. The heat-conducting cavity 21 is filled with heat-conducting liquid, and the heat-conducting liquid inside the heat-conducting cavity 21 conducts heat away from the cut portion of the substrate 7.

[0037] The specific plan is as follows: like Figure 8 , Figure 9 As shown, a heat dissipation channel 22 is provided above the heat conduction cavity 21. The heat dissipation channel 22 extends away from the substrate 7. A heat dissipation groove 23 is provided at the end of the heat conduction component 11 away from the substrate 7. The heat dissipation groove 23 has a number of heat dissipation fins 24 for dissipating heat from the heat conduction liquid inside the heat dissipation channel 22. A negative pressure cavity 25 is also connected to the inner end of the heat dissipation channel 22. A sealing block 26 is slidably connected inside the negative pressure cavity 25. The heat conduction liquid fills the heat dissipation channel 22 and the heat conduction cavity 21.

[0038] In the above scheme, the volume of the heat conduction chamber 21, the heat dissipation channel 22 and the negative pressure chamber 25 can be changed by the reciprocating movement of the sealing block 26 in the negative pressure chamber 25. When the volume increases, the heat conduction liquid is drawn into the negative pressure chamber 25. When the volume decreases, the heat conduction liquid is squeezed into the heat dissipation channel 22 and the heat conduction chamber 21. During this process, the heat conduction liquid passes through the heat exchange area of ​​the heat dissipation tank 23, thereby allowing the heat conduction liquid to exchange heat with the cold air outside.

[0039] The specific driving scheme for the sealing block 26 can be: like Figure 9 , Figure 10 As shown, a drive rod 27 is slidably installed inside the heat-conducting component 11. The drive rod 27 can reciprocate along the longitudinal direction of the heat-conducting component 11. The drive rod 27 is fixedly connected to the sealing block 26 through the connecting rod 28. Thus, when the drive rod 27 reciprocates, it can drive the sealing block 26 to reciprocate within the negative pressure chamber 25, allowing the heat-conducting liquid inside the heat dissipation channel 22 and the heat-conducting chamber 21 to flow fully, thereby improving the heat dissipation efficiency of the heat-conducting liquid.

[0040] The specific drive scheme for drive lever 27 can be: like Figure 10As shown, a drive column 29 is fixedly connected to one end of the drive rod 27. A closed-loop wave groove 30 is provided on the outer wall of the drive column 29. A drive sleeve 31 is fitted on the outside of the drive column 29. The drive sleeve 31 can rotate under the drive of the servo motor 32. The servo motor 32 is fixedly installed on the cutting bed 4. At least one drive block 33 is fixed on the inner wall of the drive sleeve 31. The drive block 33 slides in the wave groove 30. So when the servo motor 32 drives the drive sleeve 31 to rotate, the drive block 33 slides in the wave groove 30. Under the pushing action of the drive block 33, the drive column 29 moves back and forth.

[0041] Example 2: This example differs from Example 1 in that it provides an intelligent laser cutting method based on the processing of a sweeper truck's suction pipe, including the following steps: I. Substrate Conveying and Positioning System: 1. Feeding preparation: The substrate 7 (such as metal sheet) to be cut enters the equipment through the feed port 17 at one end of the cutting bed 4. The cutting bed 4 is divided into a cutting area (laser head 1 working area) and a conveying area (material transfer area), which are separated by clamping rollers 20.

[0042] 2. Positioning and fixing: After the substrate 7 enters the cutting area, the conveying roller 19 (driven by a motor) stops, and the clamping roller 20 (also driven by a motor) presses down to fix the substrate 7 flat on the cutting bed surface, ensuring no displacement deviation during cutting.

[0043] 3. Dynamic conveying: After cutting, the clamping roller 20 is released and the conveying roller 19 is started, which moves the cut rectangular material 8 along the conveying area to the discharge port 18 and finally discharges it from the equipment.

[0044] II. Laser Cutting and Interlocking Structure Forming System: 1. Two-axis track drive: The two-axis track 2 consists of a horizontal axis 5 (along the feeding direction of the cutting bed, i.e., the length direction of the substrate 7) and a vertical axis 6 (along the depth direction of the cutting bed, i.e., the width direction of the substrate 7). The traveling component 3 is slidably mounted on the vertical axis 6. The horizontal axis 5 and the vertical axis 6 are driven by servo motors to realize the precise movement of the traveling component 3 in the two-dimensional plane (XY axis linkage).

[0045] 2. Laser head path planning: The laser head 1 is fixed to the bottom of the walking component 3. According to the preset program (such as the size of the rectangle and the interlocking structure parameters), the walking component 3 is driven by the two-axis track 2 to make the laser head 1 move on the surface of the substrate 7 according to the path of "rectangular outline + interlocking joint at both ends".

[0046] 3. Interlocking Structure Cutting: The cutting path incorporates an interlocking structure 9 at both ends of the rectangular material 8—for example, a tenon is cut at one end and a groove at the other, the two combining to form a joint 10. The laser beam is focused and instantly melts the substrate 7 at high temperature, precisely separating the material along the path to form a rectangular blank with interlocking interfaces.

[0047] 4. Continuous cutting of multiple materials: When multiple rectangular materials 8 need to be cut, after the laser head 1 completes the first rectangular cut, the two-axis track 2 drives it to move to an adjacent position, so that the cutting path of the next rectangle coincides with the seam 10 of the previous one (such as sharing a side), maximizing the use of the width of the substrate 7 and reducing waste.

[0048] III. Laser Head Protection and Storage System: 1. Hollow structure of the walking component: The interior of the walking component 3 is a hollow cavity with an opening at the top, providing storage space for the laser head 1.

[0049] 2. Retractable drive mechanism: Up and down movement: The first telescopic component 12 (such as an electric push rod) is vertically installed on the top of the walking component 3. Its telescopic end is fixedly connected to the laser head 1, which can drive the laser head 1 to move up and down in the vertical direction (Z axis) to realize the switching between "extending operation" and "retracting storage".

[0050] Lateral closure: The retractable plate 13 (thin metal plate) is horizontally slidably connected to the cavity in the middle of the traveling component 3, and one side of it is fixed to the inner wall of the traveling component 3 through the second telescopic member 34. When the laser head 1 retracts, the second telescopic member 34 drives the retractable plate 13 to slide laterally, closing the top opening of the traveling component 3 and forming a sealed protective shell.

[0051] 3. Protection Logic: In the non-working state, the first telescopic component 12 fully pulls the laser head 1 into the traveling component 3, and the second telescopic component 34 drives the retractable plate 13 to close, isolating external dust and collisions and extending the life of the laser head 1. During operation, the retractable plate 13 opens, and the first telescopic component 12 pushes the laser head 1 out to the working height.

[0052] IV. Cutting Heat Dissipation and Intelligent Heat Dissipation System: 1. Heat dissipation of the basic heat-conducting components: Structure and Layout: Heat-conducting components 11 (made of copper alloy) are arranged in pairs on both sides of the cutting path of the substrate 7 (one on the top and one on the bottom). The spacing is adjusted by a linear drive component to adapt to substrates 7 of different thicknesses. An extension 14 is provided at one end of the heat-conducting component 11 near the joint 10 (the shape matches the joint 10, especially fitting the narrowing part of the interlocking structure 9 - this part is prone to thermal fatigue fracture due to heat concentration during laser cutting).

[0053] 2. Enhanced heat dissipation design: The end of the heat-conducting component 11 away from the seam 10 is raised upwards 15, separating it from the substrate 7, increasing the contact area with air, and accelerating natural convection heat dissipation.

[0054] 3. Forced circulation of heat transfer fluid for heat dissipation (core heat dissipation mechanism): Heat conduction cavity and heat dissipation channel: A heat conduction cavity 21 is opened inside the extension 14 and filled with a high specific heat capacity heat conduction liquid (such as mercury or special coolant); the heat conduction cavity 21 is connected to the heat dissipation channel 22 above, extends away from the substrate 7, and the end is connected to the heat dissipation groove 23.

[0055] Heat dissipation fins 24 enhance heat exchange: Several heat dissipation fins 24 (which can be thin aluminum sheets) are installed in the heat dissipation slot 23 to increase the contact area with air and accelerate the dissipation of heat from the heat transfer fluid to the outside.

[0056] 4. Negative pressure chamber 25 and volume change drive: The inner end of the heat dissipation channel 22 is connected to the negative pressure chamber 25 (sealed cavity), and a sealing block 26 (which can be rubber) is provided inside for sliding sealing. The sealing block 26 is fixedly connected to the drive rod 27 through the connecting rod 28, and the other end of the drive rod 27 is fixedly connected to the drive column 29.

[0057] 5. Reciprocating Drive Logic: The outer wall of the drive column 29 has an open / closed loop wave groove 30, and a drive sleeve 31 (hollow sleeve) is fitted on the outside. The drive sleeve 31 is driven to rotate by a servo motor 32 (fixed to the cutting bed 4). The inner wall of the drive sleeve 31 has a drive block 33 (protruding slider), which is embedded in the wave groove 30. When the servo motor 32 drives the drive sleeve 31 to rotate, the drive block 33 slides along the crests and troughs of the wave groove 30, forcing the drive column 29 to reciprocate along the depth direction of the heat-conducting component 11.

[0058] 6. Volume increase stage: The drive block 33 moves down along the wave groove 30, pulling the drive column 29 outward, and the sealing block 26 slides outward to the negative pressure chamber 25. The volume of the negative pressure chamber increases and the pressure decreases. The heat transfer fluid is drawn into the negative pressure chamber 25 from the heat transfer chamber 21 and the heat dissipation channel 22.

[0059] 7. Volume reduction stage: The drive block 33 moves upward along the wave groove 30, pushing the drive column 29 to move inward, and the sealing block 26 slides into the negative pressure cavity. The volume decreases and the pressure increases. The heat transfer fluid is squeezed back into the heat transfer cavity 21 and the heat dissipation channel 22. When it flows through the heat dissipation groove 23, the heat dissipation fins 24 exchange heat with the air to cool down.

[0060] Circulation effect: Through the reciprocating motion of the sealing block 26, the heat transfer fluid circulates between "heat transfer chamber 21 (heat absorption) - heat dissipation channel 22 (heat transfer) - heat dissipation tank 23 (heat release) - negative pressure chamber 25 (temporary storage)", continuously removing the heat accumulated at the interlocking structure 9 and avoiding thermal fatigue.

[0061] V. Rectangular Material Forming and Tubing System: 1. Rectangular material output: The cut rectangular material 8 is discharged from the discharge port 18 via the conveyor roller 19 and collected for later use.

[0062] 2. Pipe Rolling and Welding: The rectangular material 8 is rolled into a cylindrical shape along its length, aligning the joints 10 with interlocking structures 9 at both ends. The joints are then fixed by welding (such as argon arc welding) to form the pipe 16 (i.e., the suction pipe). The interlocking structure 9 forms a mechanical lock around the weld point through its interlocking interlocking mechanism. In the event of an impact, the interlocking structure bears the stress first, protecting the weld point and significantly improving the overall strength of the pipe 16, while also reducing the cost compared to seamless steel pipes.

[0063] In summary, by setting interlocking structures 9 at both ends of the rectangular material 8 to form a joint 10, a lock is formed after welding, which can effectively protect the weld points when encountering high-intensity impacts, significantly enhance the mechanical strength of the pipe fitting 16, and reduce production costs. By setting heat-conducting components 11 and extensions 14, both of which are made of copper alloy, they can fit the shape of the joint 10, focusing on heat dissipation at the narrowing part of the interlocking structure 9, dissipating the heat accumulated during laser cutting, and avoiding the risk of metal thermal fatigue and fracture due to high temperature. By setting two heat-conducting components 11, the position can be adjusted by a linear drive component, flexibly adapting to substrates 7 of different thicknesses, expanding the applicability of the equipment, and improving processing compatibility. When the laser head 1 of this invention cuts multiple rectangular materials 8, adjacent joints 10 overlap, reducing the loss of substrate 7. The width of the substrate matches the length of the pipe fitting 16, further reducing the scrap rate. By setting the traveling component 3 to be hollow, the laser head 1 is driven to extend and retract by the first telescopic component 12 and the second telescopic component 34. When not in operation, it is completely stored in the traveling component, avoiding external damage and improving durability.

[0064] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the present application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0066] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0067] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0068] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

[0069] The term "multiple" in this article refers to two or more. The term "and / or" in this article is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone.

[0070] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent laser cutting device based on the processing of a sweeper truck's suction pipe, comprising a laser head, two-axis tracks, and a traveling component, wherein the two-axis tracks include a horizontal axis that moves along the feeding direction of the cutting bed and a vertical axis that moves along the depth direction of the cutting bed, and the traveling component is mounted on the vertical axis, characterized in that: Driven by two-axis tracks, the traveling component moves the laser head to form a cutting path on the substrate. After the laser head completes the cutting path, it forms a rectangular material on the substrate. The cutting path forms a pipe joint with an interlocking structure at both ends of the rectangular material. A heat-conducting component is provided on one side of the cutting path on the substrate to dissipate the heat accumulated in the laser-cut part of the substrate.

2. The intelligent laser cutting equipment based on the processing of sewage suction pipes from sweeper trucks as described in claim 1, characterized in that: The heat-conducting component has an extension at one end near the joint, the side shape of which matches the shape of the joint, for local heat dissipation of the interlocking structure, and the heat-conducting component has an upward protrusion at the other end away from the joint.

3. The intelligent laser cutting equipment based on the processing of sewage suction pipes from sweeper trucks as described in claim 1, characterized in that: The width of the base material matches the length of the pipe fitting. The pipe fitting is made by rolling up rectangular material after cutting. Two opposite edges of the rectangular material serve as the pipe openings, and the other two ends serve as the joints of the pipe fitting. The joints are welded to form the pipe fitting.

4. The intelligent laser cutting equipment based on the processing of sewage suction pipes from sweeper trucks as described in claim 1, characterized in that: There are two heat-conducting components, which are respectively disposed at the upper and lower ends of the substrate. The shape of the heat-conducting components matches the shape of the joint, and the two heat-conducting components clamp the substrate.

5. The intelligent laser cutting equipment based on the processing of sewage suction pipes from sweeper trucks as described in claim 1, characterized in that: After the laser head processes multiple rectangular materials, the seams at the adjacent ends of two adjacent rectangular materials overlap.

6. The intelligent laser cutting equipment based on the processing of sewage suction pipes from sweeper trucks as described in claim 1, characterized in that: The cutting bed has a feed port and a discharge port at both ends. The cutting bed is divided into a cutting area and a conveying area. Several conveying rollers are installed in the conveying area, and clamping rollers are installed in the cutting area. The feed port is used to convey the substrate to the area below the laser head. After the laser head cuts the substrate into rectangular materials, they are conveyed to the discharge port by the conveying rollers and discharged.

7. The intelligent laser cutting equipment based on the processing of sewage suction pipes from sweeper trucks as described in claim 2, characterized in that: The extension has a heat-conducting cavity inside, which is filled with heat-conducting liquid. The heat-conducting liquid inside the heat-conducting cavity conducts heat away from the cut part of the substrate.

8. The intelligent laser cutting equipment based on the processing of sewage suction pipes from sweeper trucks as described in claim 7, characterized in that: A heat dissipation channel is provided above the heat conduction cavity, extending away from the substrate. A heat dissipation groove is provided at the end of the heat conduction component away from the substrate. The heat dissipation groove has several heat dissipation fins for dissipating heat from the heat conduction liquid inside the heat dissipation channel. A negative pressure cavity is also connected to the inner end of the heat dissipation channel. A sealing block is slidably connected inside the negative pressure cavity. The heat conduction liquid fills the heat dissipation channel and the interior of the heat conduction cavity.

9. The intelligent laser cutting equipment based on the processing of a sweeper truck's suction pipe as described in claim 8, characterized in that: A drive rod is slidably installed inside the heat-conducting component. The drive rod can reciprocate along the depth direction of the heat-conducting component. The drive rod is fixed to the sealing block through the connecting rod, thereby driving the sealing block to reciprocate within the negative pressure chamber, allowing the heat transfer fluid inside the heat dissipation channel and the heat-conducting chamber to flow fully.

10. A smart laser cutting method for processing the suction pipe of a sweeper truck, employing the smart laser cutting equipment for processing the suction pipe of a sweeper truck as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. A substrate is provided, which is placed on a cutting bed and configured with two-axis tracks. The two-axis tracks include a horizontal axis extending along the feeding direction of the cutting bed and a vertical axis extending along the depth direction of the cutting bed. The horizontal axis and the vertical axis respectively drive the traveling component to move in the corresponding direction. S2. Mount the laser head onto the traveling component, so that the laser head, driven by the traveling component in conjunction with the two-axis track, forms a preset cutting path on the surface of the substrate. S3. Control the laser head to perform laser cutting on the substrate along the cutting path. After the cutting is completed, a rectangular material is separated from the substrate, and the cutting path forms a pipe joint with an interlocking structure at both ends of the rectangular material, which is used to achieve welding and fixing between pipes. S4. A heat-conducting component is provided on one side of the cutting path of the substrate to conduct heat generated in the cut part of the substrate during laser cutting, so as to suppress the deformation or performance degradation of the substrate caused by local overheating.

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