Water-jet slag removal laser cutting apparatus

Abstract

The water-jet slag-removing laser cutting device comprises a pipe clamping device, a laser cutting head and a water-jet pipe. The left side of the cutting head is the feeding side and the right side is the discharging side. The device is additionally provided with a water pipe mounting seat on the discharging side. The right end of the water-jet pipe is fixed to the seat. The mounting seat can drive the water-jet pipe to move leftward and rightward. When the water-jet pipe moves leftward, the left end of the water-jet pipe is inserted into the pipe cutting opening to remove slag. When the water-jet pipe moves rightward, the water-jet pipe is withdrawn from the finished pipe. The right end of the water-jet pipe is provided with a water inlet, and the left end is closed. A water-permeable outlet hole is formed in the left end of the water-jet pipe. During cutting operation, the left end of the water-jet pipe is inserted into the pipe, and the outlet hole is located directly below the cutting focal point. The water outlet hole can flush and immediately remove the cutting iron slag. The device is provided with a filter water tank and a water pump. The water pump is connected to the water inlet of the water-jet pipe to supply the water-jet pipe with filtered flushing water in the water tank. The waste liquid containing slag generated during cutting flows out of the pipe cutting opening and is collected in the filter water tank to complete the solid-liquid separation and recycling.

Description

Technical Field

[0001] This invention relates to the field of laser cutting machine technology, and in particular to a water-spraying slag-removing laser cutting device. Background Technology

[0002] Laser cutting machines are the mainstream processing equipment for precision metal pipe manufacturing. During the pipe cutting process, a high-energy laser beam melts the metal material at the cutting location, generating a large amount of molten, high-temperature iron filings. Because the pipe has a hollow, closed structure, most of these filings cannot fall off naturally and adhere firmly to and accumulate on the inner wall of the pipe. After the workpiece is cut, companies need to allocate an additional process to clean the iron filings from the inner wall, which not only increases labor and time costs but also significantly reduces the overall production efficiency of the pipe. To solve this problem, the industry generally installs internal wall slag removal devices, striving to complete the slag removal operation simultaneously with cutting.

[0003] Chinese Patent 202410402345.3 discloses a laser tube cutting machine for dust and smoke removal, including a laser cutting mechanism, a feeding mechanism, and a water mist rinsing mechanism. The feeding mechanism includes a slide table and a rear chuck mounted on the slide table, with a hollow through-hole at the center of the rear chuck. The water mist rinsing mechanism includes a water mist nozzle positioned at the hollow through-hole to spray water and / or mist into the interior of the tube held in the rear chuck. During cutting, the water mist nozzle delivers water mist from the rear of the tube forward, rinsing away cutting dust and iron filings adhering to the inner wall of the tube. The water mist carrying the waste is discharged from the front of the tube, and the water mist also cools the tube, ensuring cutting quality.

[0004] However, this solution still has significant shortcomings. Currently, the length of standard pipe materials in the industry is generally several meters. As the water mist is transported from the tail end of the pipe forward, the flow velocity and scouring impact force decrease rapidly from the tail end to the front end due to pipe resistance, resulting in insufficient power. This makes it difficult to completely remove stubborn iron filings adhering to the inner wall of the latter half of the pipe, with an iron filings residue rate exceeding 30%, significantly reducing the slag removal effect. Residual iron filings not only scratch the inner wall of the pipe and cause workpiece defects, but also restrict subsequent processing steps. This structure cannot meet the high-efficiency slag removal production requirements of long-length pipes. Summary of the Invention

[0005] In order to solve the above-mentioned technical problems in the prior art, one of the objectives of this invention is to optimize the water spray slag removal structure of laser cutting equipment and improve the slag removal capacity.

[0006] In view of this, the present invention proposes a water-jet slag-removing laser cutting device, comprising a pipe clamp for holding the pipe to be processed, a laser cutting head for cutting the pipe held in the pipe clamp, and a water-jet pipe for slag removal, wherein the left side of the laser cutting head is the feeding side and the right side is the discharging side; characterized in that it further comprises a water pipe mounting base located on the discharging side of the laser cutting head, wherein the right end of the water-jet pipe is mounted on the water pipe mounting base, and the water pipe mounting base is capable of not only moving the water-jet pipe to the left so that the left end of the water-jet pipe can be inserted into the pipe to be processed from the cut end for slag removal, but also moving the water-jet pipe to the right. The water spray pipe is retracted from the cut-off finished pipe. The right end of the water spray pipe is the inlet, while the left end is sealed. A water outlet is provided on the water spray pipe, penetrating the upper side wall of the left end. During the cutting process, the water spray pipe moves to the left so that its left end is inserted into the pipe to be processed, and the water outlet is positioned directly below the focal point of the laser cutting head, so that the rinsing liquid flowing from the water outlet can promptly remove the iron filings generated during the cutting process. The system also includes a filter tank and a water pump connected to the inlet. The filter tank is used to receive and filter the waste liquid rinsed from the cut of the pipe to be processed, and the water pump is used to pump the filtered rinsing liquid in the filter tank to supply the water spray pipe.

[0007] According to the above technical solution, compared with the prior art, the beneficial technical effects of the present invention are as follows: First, the technical solution of the present invention is significantly different from the prior art patent 202410402345.3: In the laser cutting equipment proposed in the present invention, during the cutting operation, the water spray pipe is inserted into the pipe from the cutting head end (the right end being cut), not from the tail end (left end). Since the length of the finished pipe obtained by cutting is much smaller than the total length of the original pipe, this layout can effectively shorten the distance between the inlet and outlet of the water spray pipe, as well as the distance between the outlet of the water spray pipe and the cutting point of the pipe, avoiding long-distance transportation of the rinsing fluid. This helps to reduce the attenuation of the water flow velocity and scouring force of the rinsing fluid, optimize the slag removal effect, and at the same time provide favorable conditions for the outlet to be arranged directly below the focal point of the laser cutting head. Secondly, the water outlet is positioned directly below the focal point of the laser cutting head. In this way, the molten iron filings generated during cutting are immediately washed away by the flushing liquid sprayed from directly below, preventing the iron filings from adhering to the inner wall of the pipe and solidifying to form slag. This allows the cutting and slag removal operations to be carried out simultaneously, greatly optimizing the slag removal efficiency and cleaning rate, and improving the quality of the finished pipe product.

[0008] A further technical solution may include a centering corrector located between the water pipe mounting base and the laser cutting head. The centering corrector includes at least three centering blocks that are not on the same straight line. All the centering blocks can cooperate to determine the positioning reference circle. The inner diameter of the positioning reference circle can be adjusted to be slightly larger than the outer diameter of the water spray pipe by adjusting the position of the centering blocks, and the center position of the positioning reference circle can be adjusted simultaneously. When viewed from the left and right direction, the center of the positioning reference circle is located inside the cavity of the pipe to be processed. The left end of the water spray pipe can be inserted into the positioning reference circle for correction before being inserted into the pipe to be processed.

[0009] A further technical solution could be that the centering corrector also includes a centering base frame and an auxiliary plate that can move vertically up and down on the centering base frame. The auxiliary plate has a secondary plate clearance hole. Four centering blocks are provided, including two first centering blocks and two second centering blocks. The two first centering blocks are movably mounted on the auxiliary plate and are positioned on the upper and lower sides of the secondary plate clearance hole. The two second centering blocks are movably mounted on the centering base frame and are positioned on the front and rear sides of the secondary plate clearance hole. The two second centering blocks each have relatively arranged vertical straight inner guard edges, which are used to determine the positioning reference circle. The left end of the water spray pipe can also pass through the centering base frame and the secondary plate clearance hole.

[0010] A further technical solution could be that the centering corrector also includes a centering base frame and an auxiliary plate that can move back and forth on the centering base frame. The auxiliary plate has a secondary plate clearance hole. Four centering blocks are provided, including two first centering blocks and two second centering blocks. The two first centering blocks are movably mounted on the auxiliary plate and are respectively positioned on the front and rear sides of the secondary plate clearance hole. The two second centering blocks are movably mounted on the centering base frame and are respectively positioned on the upper and lower sides of the secondary plate clearance hole. The two second centering blocks each have relatively arranged transverse straight inner guard edges, which are used to cooperate in determining the positioning reference circle. The left end of the water spray pipe can also pass through the centering base frame and the secondary plate clearance hole.

[0011] A further technical solution could be that the centering corrector can move back and forth relative to the pipe to be processed in order to adjust the front and back position of the center of the positioning reference circle.

[0012] A further technical solution may also include a main frame and a slag removal frame, with the pipe clamp and laser cutting head mounted on the main frame, and the water pipe mounting base mounted on the slag removal frame; the main frame also includes an installation platform and a movable support platform, with the centering calibrator mounted on the movable support platform; a first position adjustment mechanism is provided between the installation platform and the movable support platform, the first position adjustment mechanism including at least two first adjustment holes arranged in a front-to-back pattern on one of the installation platform and the movable support platform, and a first strip hole extending in a left-right direction on the other; and a first fastener is also included, which adjustably mounts the movable support platform onto the installation platform via the first adjustment holes and the first strip hole.

[0013] A further technical solution may include a connecting base plate fixed together with the centering base frame; a second position adjustment mechanism is provided between the connecting base plate and the movable support platform, the second position adjustment mechanism includes a second adjustment hole provided on one of the connecting base plate and the movable support platform, and a second strip hole provided on the other extending in the front-rear direction, and also includes a second fastener, the second fastener adjustingly mounting the connecting base plate onto the movable support platform by means of the second adjustment hole and the second strip hole.

[0014] A further technical solution could be that the main frame and the slag removal frame are separate structures, the slag removal frame includes a lifting mechanism, the water pipe mounting base is mounted on the lifting mechanism, and the lifting mechanism can drive the water spray pipe to move up and down through the water pipe mounting base.

[0015] A further technical solution could also include a capping body, which is used to close the left end of the pipe 300 to be processed.

[0016] A further technical solution may also include a connecting pipe, which is used to connect to the left end of the pipe to be processed and to introduce water or gas into the pipe to be processed during the cutting process, so as to push the iron filings generated during the cutting process toward the cut of the pipe to be processed.

[0017] Because of the above-mentioned features and advantages, this invention can be applied to laser cutting equipment with water spray slag removal. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main view of the water-jet slag-removing laser cutting equipment using the technical solution of this invention. Figure 2 yes Figure 1 A partially enlarged structural diagram of section A in the middle; Figure 3 This is a three-dimensional structural schematic diagram of the centering corrector 600; Figure 4 This is a three-dimensional structural schematic diagram of the centering corrector 600 from another perspective; Figure 5 This is a schematic diagram of the structure in which the four centering blocks 6 cooperate in the four radial directions (up, down, front, and back) to determine the positioning reference circle 67; Figure 6 This is an exploded structural diagram of the centering corrector 600; Figure 7 This is a schematic diagram of the assembly structure of the mounting platform 8, the movable support platform 7, and the centering and correcting device 600. Detailed Implementation

[0019] The structure of the water-spraying slag-removing laser cutting equipment applying the technical solution of the present invention will be further described below with reference to the accompanying drawings. Except where explicitly stated that they are equivalent or alternative embodiments, the various implementation details disclosed below may be selectively applied or combined in a single embodiment even if they are not directly related or synergistic in function.

[0020] like Figures 1-2As shown, this invention proposes a water-spraying slag-removing laser cutting device, including a pipe clamp 1 for holding a pipe 300 to be processed, a laser cutting head 2 for cutting the pipe 300 held in the pipe clamp 1, and a water spray pipe 5 for slag removal. The left side of the laser cutting head 2 is the feeding side, and the right side is the discharging side. The device is characterized by further including a water pipe mounting base 4 located on the discharging side of the laser cutting head 2. The right end of the water spray pipe 5 is mounted on the water pipe mounting base 4. The water pipe mounting base 4 can not only move the water spray pipe 5 to the left so that the left end 52 of the water spray pipe 5 can be inserted into the pipe 300 from the cut end 301 for slag removal, but also move the water spray pipe 5 to the right so that the water spray pipe 5 can be inserted into the pipe 300 for slag removal. Pipe 5 is removed from the cut-off finished pipe; the right end of the water spray pipe 5 is the inlet 51, while the left end is blocked. The water spray pipe 5 has an outlet 53 that penetrates the upper side wall of the left end; during the cutting process, the water spray pipe 5 moves to the left so that its left end 52 is inserted into the pipe 300 to be processed, and the outlet 53 is positioned directly below the focal point of the laser cutting head 2, so that the rinsing liquid flowing out from the outlet 53 can promptly remove the iron filings generated during the cutting process; it also includes a filter water tank 200 and a water pump (not shown in the figure) connected to the inlet 51. The filter water tank 200 is used to receive and filter the waste liquid rinsed from the cut of the pipe 300 to be processed, and the water pump is used to pump the filtered rinsing liquid in the filter water tank 200 to supply the water spray pipe 5.

[0021] In this scenario, the operator faces the equipment directly, defining the left and right directions as the left and right sides from the operator's perspective.

[0022] The left side of the laser cutting head 2 is the feeding side, and the right side is the discharging side. This can be understood as follows: the area is divided based on the laser cutting head 2. The feeding side is the side where the pipe to be processed 300 is fed into the processing area, and the discharging side is the side where the finished pipe is sent out.

[0023] The water pipe mounting base 4 is located on the discharge side of the laser cutting head 2, that is, on the right side of the laser cutting head 2. When the water spray pipe 5 is completely retracted from the pipe 300 to be processed, the entire water spray pipe 5 is located on the discharge side of the laser cutting head 2. The technical solution of this invention differs significantly from existing patent 202410402345.3: in the laser cutting equipment proposed in this invention, during the cutting operation, the water spray pipe 5 is inserted into the pipe 300 from the cutting head end (the end being cut), not from the tail end of the pipe. Since the length of the finished pipe obtained by cutting is much smaller than the total length of the original pipe, this layout can effectively shorten the distance between the inlet 51 and the outlet 53 of the water spray pipe 5, as well as the distance between the outlet 53 of the water spray pipe 5 and the pipe cutting point, avoiding long-distance transportation of the flushing fluid. This helps to reduce the attenuation of the water flow velocity and scouring force of the flushing fluid, optimize the slag removal effect, and at the same time provide favorable conditions for the outlet 53 to be arranged directly below the focal point of the laser cutting head 2.

[0024] The water pipe mounting base 4 serves as the mounting carrier for the water spray pipe 5, providing stable support for it. The right end of the water spray pipe 5 can be detachably fixed to the water pipe mounting base 4 using any method such as insertion, snap-fit, or threaded connection. This allows for quick assembly and disassembly of the water spray pipe 5, enabling the replacement of the water spray pipe 5 with one of the appropriate diameter and length based on the diameter, length, required flow rate, and flushing force of the pipe to be processed 300. It also facilitates maintenance and replacement of the water spray pipe 5 in case of blockage or damage. Figure 1 In the embodiment shown, the water pipe mounting base 4 is a pair of clamping arms 41 positioned vertically. The right end of the water spray pipe 5 is detachably mounted between the pair of clamping arms 41. A connecting nozzle 54 is provided on the water inlet 51 of the water spray pipe 5. One end of the water supply pipe (not shown in the figure) is connected to the connecting nozzle 54, and the other end is connected to the water pump.

[0025] The water pipe mounting base 4 can reciprocate linearly along the axial direction parallel to the pipe to be processed 300. During the cutting process, it inserts the water spray pipe 5 into the pipe to be processed 300. After the cutting is completed, it withdraws with the water spray pipe 5 to avoid the water spray pipe 5 blocking the output of the cut finished pipe.

[0026] The right end of the water spray pipe 5 is the inlet 51, while the left end is blocked. The water spray pipe 5 has an outlet 53 that penetrates the upper side wall of the left end. This avoids the pressure loss and dispersion of the spray direction caused by the flushing liquid being sprayed directly from the left end of the water spray pipe 5. The pressure of the flushing liquid is mainly concentrated in the outlet 53, resulting in precise spraying, stronger flushing force, and a significant improvement in slag removal efficiency.

[0027] The water outlet 53 is positioned directly below the focal point of the laser cutting head 2. This ensures that the molten iron filings generated during cutting are immediately washed away by the flushing fluid sprayed from below, preventing them from adhering to the inner wall of the pipe and solidifying to form slag. This allows for simultaneous cutting and slag removal operations, significantly optimizing slag removal efficiency and cleaning rate, and improving the quality of the finished pipe product.

[0028] The filter tank 200 receives and filters the waste liquid flushed from the cut of the pipe 300 to be processed, and obtains a clean flushing liquid after filtering out iron filings and impurities. The water pump provides the conveying pressure for the flushing liquid, realizes the recycling of the flushing liquid, avoids water waste, and reduces the water cost of the equipment.

[0029] The water spray pipe 5 is long and thin, with poor overall rigidity. When its left end extends into the pipe 300 to be processed, it is prone to bending deformation due to excessive overhang. The left end of the water spray pipe 5 droops or shifts, making it difficult to align and insert into the opening of the pipe 300. Therefore, this invention further proposes a technical solution that can correct the position of the left end of the water spray pipe 5 and is also applicable to water spray pipes 5 of different diameters: such as... Figure 3-5 As shown, it also includes a centering corrector 600 located between the water pipe mounting base 4 and the laser cutting head 2. The centering corrector 600 includes at least three centering blocks 6 that are not on the same straight line. All of the centering blocks 6 can cooperate to determine the positioning reference circle 67. The inner diameter of the positioning reference circle 67 can be adjusted to be slightly larger than the outer diameter of the water spray pipe 5 by adjusting the position of the centering blocks 6, and the position of the center O of the positioning reference circle 67 can be adjusted simultaneously. When viewed from the left and right direction, the center O of the positioning reference circle 67 is located inside the cavity of the pipe to be processed 300. The left end of the water spray pipe 5 can be inserted into the positioning reference circle 67 for correction before being inserted into the pipe to be processed 300.

[0030] At least three centering blocks 6 are required. Utilizing the geometric principle that three points not on the same straight line determine a unique circle, the center O and radius of the positioning reference circle 67 are uniquely determined by the three centering blocks 6. While more than three are possible, four centering blocks 6 are recommended to reduce adjustment difficulty. The shape of the centering blocks 6 can be varied, such as square, with the positioning reference circle 67 tangent to the straight edge of the square centering block 6; or triangular, with the positioning reference circle 67 passing through the corner vertices of the centering blocks 6.

[0031] The centering block 6 is an adjustable movable component. By adjusting the position of the centering block 6, the diameter of the positioning reference circle 67 can be enlarged or reduced, and the position of its center O can also be adjusted. After adjustment, the inner diameter of the positioning reference circle 67 and the outer diameter of the water spray pipe 5 are in clearance fit, ensuring that the water spray pipe 5 can be smoothly inserted and withdrawn axially while keeping the radial clearance within a very small range. In this way, the centering block 6 completes the radial centering of the left end of the water spray pipe 5, shortens the cantilever length of the water spray pipe 5, significantly reduces the radial sway and vibration amplitude of the water spray pipe 5, improves working stability, and also enables a single centering structure to be compatible with multiple specifications of water spray pipe 5 without the need to replace water pipe positioning sleeves with different inner diameters, reducing the number of replacement parts and lowering equipment modification costs and changeover time.

[0032] Furthermore, such as Figure 3-6 As shown, the centering calibrator 600 also includes a centering base frame 64 and an auxiliary plate 63 that can move vertically up and down on the centering base frame 64. The auxiliary plate 63 has a secondary plate clearance hole 630. Four centering blocks 6 are provided, including two first centering blocks 61 and two second centering blocks 62. The two first centering blocks 61 are movably mounted on the auxiliary plate 63 and are respectively positioned on the upper and lower sides of the secondary plate clearance hole 630. The two second centering blocks 62 are movably mounted on the centering base frame 64 and are respectively positioned on the front and rear sides of the secondary plate clearance hole 630. The two second centering blocks 62 each have a vertically arranged straight inner flange 620. The vertical straight flange is used to cooperate in determining the positioning reference circle 67. The left end of the water spray pipe 5 can also pass through the centering base frame 64 and the secondary plate clearance hole 630.

[0033] In this scenario, the equipment operator faces the equipment directly, and from the operator's perspective, the directions toward and away from themselves are defined as the front and back directions.

[0034] The auxiliary plate 63 has a vertical lifting freedom. When the auxiliary plate 63 moves vertically, it can simultaneously drive the two first centering blocks 61 to move vertically, thereby adjusting the height of the center O of the positioning reference circle 67. Additionally, the secondary plate clearance hole 630 serves as a clearance channel for the water spray pipe 5 to pass through axially. A clearance channel for the water spray pipe 5 to pass through axially is also provided on the centering base frame 64. Figure 3 and 4In the illustrated embodiment, the centering base 64 is a vertical plate with a base clearance through hole 640, the height of which is greater than the height of the auxiliary plate clearance hole 630. The shape of the base clearance through hole 640 can be varied, such as circular, elliptical, square, or U-shaped with the opening facing upwards, as long as it provides clearance space for the water spray pipe 5 to pass through axially. In other embodiments, the centering base 64 may include two vertical columns arranged at a distance from each other, and the auxiliary plate 63 is vertically movable and height-adjustable on the pair of vertical columns.

[0035] Among them, the four centering blocks 6 form a closed-loop bidirectional constraint on the water spray pipe 5 from four radial directions (up, down, front, and back), together constituting a complete radial positioning boundary. Figure 3 and 4 In the embodiment shown, the auxiliary plate 63 is installed on the right side of the centering base 64, and the two second centering blocks 62 are movably installed on the left side of the centering base 64 in the front-to-back (F direction) direction.

[0036] The two second centering blocks 62 each have opposing vertical straight inner flanges 620. This can be understood as the two second centering blocks 62 being arranged opposite each other in the front-to-back direction, with each flange having a vertically extending straight flange on one side facing the center of the positioning reference circle 67. The two flanges are parallel and opposite each other. The vertical straight inner flanges 620 have sufficient contact length in the vertical direction, maintaining stable surface contact limitation even when the vertical position of the water spray pipe 5 changes. The vertical straight inner flanges 620 do not interfere with the vertical displacement of the water spray pipe 5. When adjusting the height of the center O of the positioning reference circle 67 in conjunction with the auxiliary plate 63, there is no need to simultaneously adjust the vertical position of the second centering blocks 62, simplifying the adjustment logic and increasing debugging efficiency. Figure 6In the illustrated embodiment, the centering base frame 64 is provided with a first base frame hole 641, and the auxiliary plate 63 is provided with a vertically extending sub-plate elongated hole 631. A third fastener (not shown in the figure) passes through the sub-plate elongated hole 631 and the first base frame hole 641 to movably mount the auxiliary plate 63 on the right side of the centering base frame 64. The first centering block 61 is provided with a vertically extending first elongated hole 610, and sub-plate through holes 632 are opened on the upper and lower sides of the sub-plate clearance hole 630. A fourth fastener (not shown in the figure) passes through the first elongated hole 610 and the sub-plate through hole 632 to movably mount the first centering block 61 on the auxiliary plate 63. A second base frame hole 642 is also provided on the centering base frame 64, and a second elongated hole 621 extending in the front-back direction is provided on the second centering block 62. The fifth fastener (not shown in the figure) passes through the second base frame hole 642 and the second elongated hole 621 to install the second centering block 62 movably on the left side of the centering base frame 64.

[0037] Alternatively, the following technical solution can be adopted: the centering corrector further includes a centering base frame and an auxiliary plate that can move back and forth on the centering base frame. The auxiliary plate has a secondary plate clearance hole. Four centering blocks are provided, including two first centering blocks and two second centering blocks. The two first centering blocks are movably mounted on the auxiliary plate and are respectively positioned on the front and rear sides of the secondary plate clearance hole. The two second centering blocks are movably mounted on the centering base frame and are respectively positioned on the upper and lower sides of the secondary plate clearance hole. The two second centering blocks each have a relatively arranged transverse straight inner guard edge, which is used to cooperate in determining the positioning reference circle. The left end of the water spray pipe can also pass through the centering base frame and the secondary plate clearance hole.

[0038] Furthermore, two first centering blocks 61 or two second centering blocks 62 are installed on the left side of the centering base 64 to block the pipe 300 to be processed. Thus, after cutting, the cut-off finished pipe is inserted into the water spray pipe 5. When the water spray pipe 5 moves to the right, the finished pipe is blocked by the centering blocks 61, and then completely detaches from the water spray pipe 5 to complete the material dropping. In this embodiment, two second centering blocks 62 are installed on the left side of the centering base 64, and a gasket 66 is provided on the second centering blocks 62, which block the pipe 300 to be processed through the gasket 66.

[0039] Furthermore, the centering calibrator 600 can move back and forth relative to the pipe 300 to adjust the position of the center O of the positioning reference circle 67. Thus, the center O of the positioning reference circle 67 can be determined by adjusting the position of the centering calibrator 600.

[0040] Furthermore, such as Figure 1 and 7 As shown, it also includes a main frame 100 and a slag removal frame 400. The pipe clamp 1 and the laser cutting head 2 are mounted on the main frame 100, and the water pipe mounting base 4 is mounted on the slag removal frame 400. An installation platform 8 and a movable support platform 7 are also provided on the main frame 100, and the centering calibrator 600 is mounted on the movable support platform 7. A first position adjustment mechanism is provided between the installation platform 8 and the movable support platform 7. The first position adjustment mechanism includes at least two first adjustment holes 81 arranged in a front-to-back pattern on one of the installation platform 8 and the movable support platform 7, and a first strip hole 71 extending in a left-right direction on the other. It also includes a first fastener, which adjusts the position of the movable support platform 7 onto the installation platform 8 via the first adjustment holes 81 and the first strip hole 71. Figure 7 In the illustrated embodiment, the mounting platform 8 is provided with two rows of first adjustment hole groups arranged front to back, each row of the first adjustment hole groups including five first adjustment holes 81; the movable support platform 7 is provided with one first strip hole 71. Thus, by utilizing the cooperation of the first fastener, the first adjustment hole 81, and the first strip hole 71, the movable support platform 7 can be adjusted in the front-back and left-right directions. In other embodiments, it is also possible to provide the first adjustment hole 81 on the movable support platform 7 and the first strip hole 71 on the mounting platform 8.

[0041] Furthermore, it also includes a connecting base plate 65 fixedly connected to the centering base frame 64; a second position adjustment mechanism is provided between the connecting base plate 65 and the movable support platform 7, the second position adjustment mechanism including a second adjustment hole provided on one of the connecting base plate 65 and the movable support platform 7, and a second strip-shaped hole 650 extending in the front-rear direction provided on the other, and also includes a second fastener, the second fastener adjustingly mounting the connecting base plate 65 onto the movable support platform 7 via the second adjustment hole and the second strip-shaped hole 650. Figure 4In the illustrated embodiment, a second strip-shaped hole 650 is provided on the connecting base plate 65, and a second adjustment hole (not shown in the figure) is provided on the movable support platform 7. Thus, by utilizing the cooperation of the second fastener, the second adjustment hole, and the second strip-shaped hole 650, the position of the centering base frame 64 relative to the movable support platform 7 in the front-rear direction can be adjusted. In other embodiments, it is also possible to provide the second adjustment hole on the connecting base plate 65 and the second strip-shaped hole 650 on the movable support platform 7.

[0042] In order to adjust the radial position of the right end of the water spray pipe 5, such as Figure 1 As shown, the main frame 100 and the slag removal frame 400 are separate structures. The slag removal frame 400 includes a lifting mechanism 9, and the water pipe mounting base 4 is mounted on the lifting mechanism 9. The lifting mechanism 9 can drive the water spray pipe 5 to move up and down through the water pipe mounting base 4. In this way, by adjusting the position of the slag removal frame 400, the front-back position of the right end of the water spray pipe 5 can be adjusted, and then the up-down position of the water spray pipe 5 can be adjusted through the lifting mechanism 9. In addition, the lifting mechanism 9 can also appropriately tilt the water spray pipe 5 upwards, closer to one side of the laser cutting head 2, so that the rinsing liquid sprayed from the water outlet 53 can more quickly flush away the iron filings, and it is also beneficial for the rinsing liquid to be closer to the cut of the pipe 300 to be processed for cooling.

[0043] The right end of the pipe 300 to be processed is the cutting end. To prevent the rinsing fluid from leaking out from the left end of the pipe 300, the present invention further proposes the following technical solutions: Firstly, a sealing cap (not shown in the figure) is included to seal the left end of the pipe 300. Secondly, a connecting pipe (not shown in the figure) is included to connect to the left end of the pipe 300 and to introduce water or gas into the pipe 300 during the cutting process, thereby pushing the iron filings generated during the cutting process towards the cut of the pipe 300.

Claims

1. A water-jet slag-removing laser cutting device, comprising a pipe holder for clamping a pipe to be processed, a laser cutting head for cutting the pipe held in the pipe holder, and a water-jet pipe for slag removal, wherein the left side of the laser cutting head is the feed side and the right side is the discharge side; characterized in that, It also includes a water pipe mounting base located on the discharge side of the laser cutting head. The right end of the water spray pipe is mounted on the water pipe mounting base. The water pipe mounting base can not only move the water spray pipe to the left so that the left end of the water spray pipe can be inserted into the pipe to be processed from the cut end for slag removal, but also move the water spray pipe to the right so that the water spray pipe can be withdrawn from the cut finished pipe. The right end of the water spray pipe is the water inlet, while the left end is sealed. A through-hole is provided on the water spray pipe at the left end. The side wall has a water outlet; during the cutting process, the water spray pipe moves to the left so that its left end is inserted into the pipe to be processed, and the water outlet is positioned directly below the focal point of the laser cutting head, so that the rinsing liquid flowing out of the water outlet can promptly remove the iron filings generated during the cutting process; it also includes a filter water tank and a water pump connected to the water inlet, the filter water tank is used to receive and filter the waste liquid rinsed from the cut of the pipe to be processed, and the water pump is used to pump the filtered rinsing liquid in the filter water tank to supply the water spray pipe.

2. The water-jet slag removal laser cutting equipment according to claim 1, characterized in that, It also includes a centering corrector located between the water pipe mounting base and the laser cutting head. The centering corrector includes at least three centering blocks that are not on the same straight line. All of the centering blocks can cooperate to determine the positioning reference circle. The inner diameter of the positioning reference circle can be adjusted to be slightly larger than the outer diameter of the water spray pipe by adjusting the position of the centering blocks, and the center position of the positioning reference circle can be adjusted simultaneously. When viewed from the left and right direction, the center of the positioning reference circle is located inside the cavity of the pipe to be processed. The left end of the water spray pipe can be inserted into the positioning reference circle for correction before being inserted into the pipe to be processed.

3. The water-jet slag removal laser cutting equipment according to claim 2, characterized in that, The centering corrector also includes a centering base frame and an auxiliary plate that can move vertically up and down on the centering base frame. The auxiliary plate has a secondary plate clearance hole. Four centering blocks are provided, including two first centering blocks and two second centering blocks. The two first centering blocks are movably mounted on the auxiliary plate and are positioned on the upper and lower sides of the secondary plate clearance hole. The two second centering blocks are movably mounted on the centering base frame and are positioned on the front and rear sides of the secondary plate clearance hole. The two second centering blocks each have opposing vertical straight inner guard edges, which are used to determine the positioning reference circle. The left end of the water spray pipe can also pass through the centering base frame and the secondary plate clearance hole.

4. The water-jet slag removal laser cutting equipment according to claim 2, characterized in that, The centering corrector also includes a centering base frame and an auxiliary plate that can move back and forth on the centering base frame. The auxiliary plate has a secondary plate clearance hole. Four centering blocks are provided, including two first centering blocks and two second centering blocks. The two first centering blocks are movably mounted on the auxiliary plate and are positioned on the front and rear sides of the secondary plate clearance hole. The two second centering blocks are movably mounted on the centering base frame and are positioned on the upper and lower sides of the secondary plate clearance hole. The two second centering blocks each have a relatively arranged transverse straight inner guard edge, which is used to determine the positioning reference circle. The left end of the water spray pipe can also pass through the centering base frame and the secondary plate clearance hole.

5. The water-jet slag removal laser cutting equipment according to any one of claims 2 to 4, characterized in that, The centering calibrator can move back and forth relative to the pipe to be processed to adjust the front and back position of the center of the positioning reference circle.

6. The water-jet slag removal laser cutting equipment according to claim 5, characterized in that, It also includes a main frame and a slag removal frame. The pipe clamp and laser cutting head are mounted on the main frame, and the water pipe mounting base is mounted on the slag removal frame. An installation platform and a movable support platform are also provided on the main frame, and the centering calibrator is mounted on the movable support platform. A first position adjustment mechanism is provided between the installation platform and the movable support platform. The first position adjustment mechanism includes at least two first adjustment holes arranged in a front-to-back pattern on one of the installation platform and the movable support platform, and a first strip hole extending in a left-right direction on the other. It also includes a first fastener, which adjusts the position of the movable support platform onto the installation platform by means of the first adjustment holes and the first strip hole.

7. The water-jet slag removal laser cutting equipment according to claim 6, characterized in that, It also includes a connecting base plate fixed together with the centering base frame; a second position adjustment mechanism is provided between the connecting base plate and the movable support platform. The second position adjustment mechanism includes a second adjustment hole provided on one of the connecting base plate and the movable support platform, and a second strip hole provided on the other extending in the front-back direction. It also includes a second fastener, which adjusts the position of the connecting base plate to the movable support platform by means of the second adjustment hole and the second strip hole.

8. The water-jet slag removal laser cutting equipment according to claim 6, characterized in that, The main frame and the slag removal frame are separate structures. The slag removal frame includes a lifting mechanism. The water pipe mounting base is installed on the lifting mechanism. The lifting mechanism can drive the water spray pipe to move up and down through the water pipe mounting base.

9. The water-jet slag removal laser cutting equipment according to any one of claims 1 to 4, characterized in that, It also includes a capping body, which is used to close the left end of the pipe to be processed.

10. The water-jet slag removal laser cutting equipment according to any one of claims 1 to 4, characterized in that, It also includes a connecting pipe, which is used to connect to the left end of the pipe to be processed and to introduce water or gas into the pipe to be processed during the cutting process, so as to push the iron filings generated during the cutting process toward the cut of the pipe to be processed.

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