Cutting device for wing plate machining and cutting method thereof

Abstract

The invention discloses a cutting device for wing plate machining and a cutting method of the cutting device, and belongs to the field of steel laser cutting. The cutting device comprises a machine table and a laser cutting unit connected to the machine table; the driving displacement unit comprises a workpiece table fixedly connected to the upper end of the machine table, a first single-axis moving module connected to the workpiece table, a YZ axial moving module fixedly connected to the outer surface of the first single-axis moving module and an XY axial moving module connected to the upper end of the workpiece table. By means of the induction heating part, preheating and temperature-controlled slow cooling are carried out on a wing plate, a web plate and a right angle of the high-strength H-shaped steel, thermal stress concentration caused by local rapid heating / cooling is reduced, microcracks caused by stress superposition are avoided, the microstructure of the laser cutting edge is more uniform, the crack sensitivity is reduced, and the quality of the H-shaped steel is improved. And residual stress accumulated in the cutting process is released, and delayed cracks caused by stress residues in later use are avoided.

Description

Technical Field

[0001] The present invention relates to the field of laser cutting of steel, and more specifically, to a cutting device and a cutting method for flange processing. Background Art

[0002] The flange (also known as the flange) of an H-beam is the horizontal part at the upper and lower ends of the H-beam cross-section. It is flat and wide in shape and together with the vertical part in the middle (called the web) forms an H-shaped structure. The flange is a key load-bearing component of the H-beam. When subjected to bending loads (such as when used as a beam), the flange mainly bears tensile or compressive stresses.

[0003] In the prior art, most of the cutting of H-beams is carried out by laser cutting the flange and the web. For example, the existing patent (a Chinese utility model patent with the publication number CN221773728U) discloses an H-beam laser cutting host, which realizes the cutting of H-beams by providing a laser cutting head. Although the laser cutting method can efficiently cut H-beams, high-strength steel is sensitive to heat input, and thermal stress concentration is likely to occur during the rapid heating and cooling process. In particular, there may be residual stresses inside the rolled or cut H-beams. The thermal process of laser cutting will superimpose new thermal stresses, resulting in local stresses exceeding the tensile strength of the material. The oxide layer on the cutting edge may cause microcracks due to the difference in the expansion coefficients of the thermal cycle and the base material. The cracks weaken the effective cross-sectional area and directly affect the bending and compressive strengths of the H-beam, especially at critical load-bearing parts (such as beam-column joints), where the risk is higher. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a cutting device and a cutting method for flange processing.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A cutting device for flange processing includes a machine table and a laser cutting unit connected to the machine table.

[0007] A driving displacement unit is connected to the upper end of the machine table, and the driving displacement unit includes a workpiece table fixed to the upper end of the machine table, a single-axis moving module I connected to the workpiece table, a YZ-axis moving module fixed to the outer surface of the single-axis moving module I, an XY-axis moving module connected to the upper end of the workpiece table, and two single-axis moving modules II connected to the inside of the single-axis moving module I.

[0008] Anti-cracking preheating assemblies I are connected to the moving parts of the two single-axis moving modules II, and anti-cracking preheating assemblies II are connected to the Z-axis moving part of the YZ-axis moving module and the Y-axis moving part of the XY-axis moving module.

[0009] The crack-inhibiting preheating component 1 includes a base 1 fixedly connected to the moving part of the uniaxial moving module 2 and a flat base connected to one side of the base 1; the crack-inhibiting preheating component 2 includes a base 2 fixedly connected to the Y-axis moving part of the XY-axis moving module and a concave base connected to one side of the base 2. Induction heating parts are fixedly connected to one side of the flat base and three sides of the concave base.

[0010] Furthermore, the uniaxial moving module 1 includes a lead screw axial moving part connected to one side of the workpiece table, a slider slidably connected to the other side of the workpiece table, and a connecting plate connecting the slider and the lead screw axial moving part. Two of the uniaxial moving modules 2 are respectively connected to the inside of the slider and the lead screw axial moving part. Two inclined surfaces are symmetrically arranged on the outer surface of the concave base, and induction heating parts are also fixedly connected to the two inclined surfaces.

[0011] Furthermore, fine-tuning components are connected inside both the base 1 and the base 2. The fine-tuning component includes an activity groove opened inside the base 1 and the base 2, a sliding seat slidably connected in the activity groove, a tooth key opened on one side of the sliding seat, and a gear rotatably connected inside the activity groove and meshing with the tooth key. Motors 3 are fixedly connected to one side of both the base 1 and the base 2, and the output shaft of the motor 3 is fixedly connected to one end of the gear. One ends of the two sliding seats are respectively fixedly connected to one side of the flat base and one side of the concave base.

[0012] Furthermore, covers are fixedly connected to one side of the flat base, three sides of the concave base, and the two inclined surfaces. The cover is used to contact the workpiece and enable the induction heating part to heat the workpiece in the semi-closed cover chamber.

[0013] Furthermore, two openings are symmetrically arranged on the inner wall of the cover, and two groups of pipeline interfaces respectively connected to the two openings are fixedly connected to both sides of the outer surface of the cover. Recovery and separation components are fixedly connected to one side of both the base 1 and the base 2. The recovery and separation component includes two shells respectively fixedly connected to one side of the base 1 and the base 2, a partition fixedly connected inside the shell and separating the inside of the shell into two independent chambers, a pump body and a hollow fiber membrane fixedly connected to one side of the partition, an exhaust port and an output port respectively opened on both sides of the shell and connected to one of the chambers. The input end of the pump body is connected to the other chamber, and the output end of the pump body is connected to the input end of the hollow fiber membrane. One group of the pipeline interfaces is connected to one of the chambers inside the shell through an exhaust pipe.

[0014] Furthermore, a filtering part is fixedly connected to one side of the partition, and the input end of the pump body penetrates through the partition and is connected to the filtering part. An opening is arranged on one side of the shell, and a side plate is rotatably connected in the opening.

[0015] Further, on one side of each of the two shells fixedly connected to one side of the two seat bodies, an oxygen removal and heat - uniforming assembly one is connected. The oxygen removal and heat - uniforming assembly one includes two seat bodies three fixedly connected to one side of the two shells respectively, two moving seats one slidably connected inside the two seat bodies three respectively, two grinding rollers one rotatably connected inside the two moving seats one respectively, two motors one fixedly connected to one side of the two seat bodies three respectively, and electric push rods one fixedly connected inside the seat bodies three with their telescopic ends fixedly connected to one side of the moving seats. And on one side of each of the two seat bodies three, an avoidance groove for accommodating the motor one is provided, and the output shafts of the two motors one are respectively fixedly connected to one end of the two grinding rollers one.

[0016] Further, on one side of each of the two shells fixedly connected to one side of the two seat bodies two, an oxygen removal and heat - uniforming assembly two is connected. The oxygen removal and heat - uniforming assembly two includes two seat bodies four fixedly connected to one side of the two shells respectively, three moving seats two slidably connected inside the seat bodies four, three electric push rods two fixedly connected inside the seat bodies four with their telescopic ends respectively fixedly connected to the three moving seats two, three grinding rollers two rotatably connected inside the three moving seats two respectively, and three driving parts fixedly connected inside the three moving seats two respectively for driving the grinding rollers two to rotate.

[0017] Further, the driving part includes a motor two fixedly connected inside the moving seat two and a synchronous driving part connecting the output shaft of the motor two and one end of the grinding roller two. On the outer surfaces of the two seat bodies four, two groups of grinding sheets are installed. On the outer surfaces of the seat body three and the seat body four, baffles are fixedly connected. The laser cutting unit includes a three - axis moving module connected to the machine table, a rotation adjustment part fixedly connected to one side of the Z - axis moving part of the three - axis moving module, and a laser cutting part fixedly connected to one side of the rotation adjustment part.

[0018] A method for processing and cutting wing plates includes the following steps:

[0019] S1. Through the single - axis moving module one, the X - axis positions of the two crack - inhibiting preheating assemblies one and one of the crack - inhibiting preheating assemblies two can be adjusted. Through the XY - axis moving module, the XY - axis positions of the other crack - inhibiting preheating assembly two can be adjusted. The outer sides of the wing plates of the H - shaped steel are preheated through the induction heating parts in the two crack - inhibiting preheating assemblies one, and the inner sides, right - angled parts and webs of the wing plates of the H - shaped steel are preheated through the induction heating parts in the two crack - inhibiting preheating assemblies two.

[0020] S2. When the two crack - inhibiting preheating assemblies one and the two crack - inhibiting preheating assemblies two move in the X - axis direction and are about to reach the cutting area, the fine - tuning assembly drives the crack - inhibiting preheating assemblies one and two to move towards the H - shaped steel, so that the grinding rollers one and two can contact the outer surface of the H - shaped steel. The motors one and two drive the grinding rollers one and two to rotate respectively to polish the outer surface of the H - shaped steel, removing surface unevenness and oxide layers to make the preheating more uniform.

[0021] S3. After the grinding rolls 1 and 2 finish grinding the cutting area, the cover body moves to the ground cutting area. One side of the cover body can contact the outer surface of the H-beam, forming a semi-closed heating environment between the cover body and the H-beam. The heat energy generated by induction heating is concentrated on the flange, reducing the heat loss by convection, radiation and other means.

[0022] S4. During the induction heating process, protective gas is sent into the cover body through one of the pipe interfaces to inhibit the oxidation reaction on the outer surface of the H-beam during the preheating process. The recovery and separation component extracts the protective gas in the cover body through the exhaust pipe and performs filtration and membrane separation treatment to achieve the rough separation of the protective gas.

[0023] S5. The three-axis moving module drives the laser cutting part to move to the cutting position, and the H-beam is laser cut by the laser cutting part. During the cutting process, the rotation adjustment part can drive the laser cutting part to rotate to adjust the cutting angle.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] (1) In this solution, the crack-inhibiting preheating component 1 and the crack-inhibiting preheating component 2 are provided. The induction heating part is used to preheat and control the temperature for slow cooling of the flange, web and right angle of the high-strength H-beam. Preheating the H-beam before cutting can reduce the material brittleness, reduce the thermal stress concentration caused by local rapid heating / cooling, avoid microcracks caused by stress superposition, make the microstructure of the laser cutting edge more uniform, reduce the crack sensitivity. The controlled-temperature heating after cutting the H-beam can make the cut H-beam cool slowly, release the residual stress accumulated during the cutting process, avoid delayed cracks in later use caused by stress residue, reduce the hardness of the heat-affected zone and improve the toughness.

[0026] (2) In this solution, the cover body and the pipe interface are provided. When preheating the H-beam, one side of the cover body can contact the outer surface of the H-beam, forming a semi-closed heating environment, making the heat energy generated by induction heating more concentrated on the workpiece, reducing the heat loss by convection, radiation and other means. This can not only improve the preheating efficiency, reduce the temperature gradient and local overheating phenomenon, but also reduce the overall energy consumption. At the same time, during the preheating process, protective gas is sent into the cover body through the pipe interface to form an inert environment in the cover body, inhibit the oxidation reaction, ensure the surface quality of the flange, and avoid the reaction of the steel surface with oxygen in the air to form scale or other surface defects that are not conducive to subsequent processing, thus providing a cleaner base for laser cutting.

[0027] (3) This solution is provided with a deoxidation and heat - equalizing component I and a deoxidation and heat - equalizing component II. The outer surface of the H - shaped steel can be polished by the first grinding roll and the second grinding roll. After polishing, the steel surface is cleaner, free of oil stains and aging oxide layers, enabling more uniform heat transfer to the interior of the material during induction heating, avoiding excessive local temperature differences caused by uneven surface conditions, reducing the risk of thermal stress and deformation. At the same time, the outer surface of the polished steel is smoother, making the movement contact between the cover and the outer surface of the steel more smooth. Description of the Drawings

[0028] Figure 1 is the overall structural schematic diagram of the present invention;

[0029] Figure 2 is the structural schematic diagram of the driving and shifting unit of the present invention;

[0030] Figure 3 is the structural schematic diagram of the deoxidation and heat - equalizing component I and the crack - suppressing and preheating component I of the present invention;

[0031] Figure 4 is the structural schematic diagram of the crack - suppressing and preheating component II and the exhaust pipe of the present invention;

[0032] Figure 5 is the structural schematic diagram of the fine - tuning component of the present invention;

[0033] Figure 6 is the structural schematic diagram of the deoxidation and heat - equalizing component II and the baffle of the present invention;

[0034] Figure 7 is the cross - sectional view of the fourth seat body of the present invention;

[0035] Figure 8 is the cross - sectional view of the recycling and separation component of the present invention.

[0036] Explanation of the reference numerals in the drawings:

[0037] 1. Machine platform; 2. Three-axis moving module; 3. Rotating adjustment part; 4. Laser cutting part; 5. Driving displacement unit; 51. Workpiece table; 52. Single-axis moving module one; 53. Connecting plate; 54. YZ-axis moving module; 55. XY-axis moving module; 56. Single-axis moving module two; 61. Crack suppression preheating component one; 611. Seat body one; 612. Flat seat; 62. Crack suppression preheating component two; 621. Seat body two; 622. Concave seat; 623. Inclined surface; 63. Induction heating part; 64. Cover body; 65. Opening; 66. Pipeline interface; 67. Exhaust pipe; 7. Recycling and separation component; 71. Shell; 72. Partition board; 73. Pump body; 74. Exhaust port; 75. Hollow fiber membrane; 76. Output port; 77. Side plate; 78. Filter part; 81. Deoxygenation and heat uniformity component one; 811. Seat body three; 812. Motor one; 813. Grinding roller one; 814. Moving seat one; 82. Deoxygenation and heat uniformity component two; 821. Seat body four; 822. Moving seat two; 823. Grinding roller two; 824. Grinding disc; 825. Motor two; 826. Synchronous driving part; 827. Electric push rod two; 83. Baffle; 9. Fine adjustment component; 91. Motor three; 92. Activity groove; 93. Gear; 94. Sliding seat; 95. Tooth key. Detailed implementation mode

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 to 8 , a cutting device for wing plate processing and its cutting method, including a machine platform 1 and a laser cutting unit connected to the machine platform 1. The laser cutting unit includes a three-axis moving module 2 connected to the machine platform 1, a rotating adjustment part 3 fixed on one side of the Z-axis moving part of the three-axis moving module 2, and a laser cutting part 4 fixed on one side of the rotating adjustment part 3.

[0040] The upper end of the machine platform 1 is connected with a driving displacement unit 5, and the driving displacement unit 5 includes a workpiece table 51 fixed on the upper end of the machine platform 1, a single-axis moving module one 52 connected to the workpiece table 51, a YZ-axis moving module 54 fixed on the outer surface of the single-axis moving module one 52, an XY-axis moving module 55 connected to the upper end of the workpiece table 51, and two single-axis moving modules two 56 connected inside the single-axis moving module one 52;

[0041] A crack suppression preheating component I 61 is connected to the moving part of each of the two single-axis moving modules II 56, and a crack suppression preheating component II 62 is connected to the Z-axis moving part of the YZ-axis moving module 54 and the Y-axis moving part of the XY-axis moving module 55;

[0042] The crack suppression preheating component I 61 includes a seat body I 611 fixed to the moving part of the single-axis moving module II 56 and a flat seat 612 connected to one side of the seat body I 611; the crack suppression preheating component II 62 includes a seat body II 621 fixed to the Y-axis moving part of the XY-axis moving module 55 and a concave seat 622 connected to one side of the seat body II 621. An induction heating part 63 is fixed to one side of the flat seat 612 and three side surfaces of the concave seat 622.

[0043] The single-axis moving module I 52 includes a lead screw axial moving part (as can be seen from Figure 1 and Figure 2 that the lead screw axial moving part includes a driving motor fixed to one side of the workpiece table 51, a lead screw rotatably connected inside the workpiece table 51, and a moving block slidably connected to one side of the workpiece table 51 and screwed outside the lead screw. Driving the lead screw to rotate to achieve displacement belongs to mature prior art and will not be elaborated here), a slider slidably connected to the other side of the workpiece table 51, and a connecting plate 53 connecting the slider and the lead screw axial moving part (both ends of the connecting plate 53 are fixedly connected to one side of the slider and the moving block respectively). The two single-axis moving modules II 56 are respectively connected to the inside of the slider and the lead screw axial moving part. Two inclined surfaces 623 are symmetrically arranged on the outer surface of the concave seat 622, and an induction heating part 63 is also fixed to the two inclined surfaces 623.

[0044] A fine adjustment component 9 is connected inside both the seat body I 611 and the seat body II 621. The fine adjustment component 9 includes a moving groove 92 opened inside the seat body I 611 and the seat body II 621, a sliding seat 94 slidably connected in the moving groove 92, a tooth key 95 opened on one side of the sliding seat 94, and a gear 93 rotatably connected inside the moving groove 92 and meshing with the tooth key 95. A motor III 91 is fixed to one side of both the seat body I 611 and the seat body II 621, and the output shaft of the motor III 91 is fixedly connected to one end of the gear 93. One ends of the two sliding seats 94 are respectively fixedly connected to one side of the flat seat 612 and one side of the concave seat 622.

[0045] By adopting the above technical solution, the H-shaped steel is placed on the workpiece table 51 and limited and fixed (the limiting and fixing method can be achieved by means such as a fixture, which belongs to the mature prior art and will not be elaborated here). Control the operation of the single-axis moving module 52 to drive the two crack suppression and preheating components 61 and the upper crack suppression and preheating component 62 to move in the X-axis direction. The two single-axis moving modules 56 can respectively drive the two crack suppression and preheating components 61 to move in the Z-axis direction to adjust the X-axis and Z-axis positions of the two crack suppression and preheating components 61. The XY-axis moving module 55 can adjust the X-axis and Y-axis positions of the lower crack suppression and preheating component 62, and the YZ-axis moving module 54 can adjust the Y-axis and Z-axis positions of the upper crack suppression and preheating component 62, so that the two crack suppression and preheating components 61 and the two crack suppression and preheating components 62 can move to the area to be cut. After the two crack suppression and preheating components 61 and the two crack suppression and preheating components 62 move to the area to be cut, the motor 91 operates to drive the gear 93 to rotate. The rotation of the gear 93 drives the slide 94 to move in the movable slot 92 through the tooth key 95. The movement of the slide 94 drives the seat body 611 and the seat body 621 to move towards the H-shaped steel, and the distance between the induction heating part 63 and the H-shaped steel can be adjusted. The induction heating parts 63 on the three side surfaces of the flat seat 612 and the concave seat 622 (induction heating is a technology that uses the principle of electromagnetic induction to quickly and non-contact heat conductive materials (such as metals), which belongs to the mature prior art and will not be elaborated here) can preheat the flange and web of the H-shaped steel. The induction heating part 63 arranged on the inclined surface 623 can preheat the right-angle connection between the flange and web of the H-shaped steel. Preheating the H-shaped steel before cutting can reduce the brittleness of the material, reduce the thermal stress concentration caused by local rapid heating / cooling, avoid microcracks caused by stress superposition, make the microstructure of the laser-cut edge more uniform, and reduce the crack sensitivity. After preheating, control the movement of the induction heating part 63 and reset it, and then drive the laser cutting part 4 to move to the preheated position to be cut through the three-axis moving module 2. The H-shaped steel is laser-cut by the laser cutting part 4. During the cutting process, the rotation adjustment part 3 can drive the laser cutting part 4 to rotate to adjust the cutting angle. After laser cutting, control the three-axis moving module 2 to reset and make the induction heating part 63 move to the cut area again. The temperature control heating of the H-shaped steel after cutting by the induction heating part 63 can make the cut H-shaped steel cool slowly, release the residual stress accumulated during the cutting process, avoid delayed cracks in later use caused by stress residue, reduce the hardness of the heat-affected zone, and improve the toughness. The three-axis moving module 2, the single-axis moving module 52, the YZ-axis moving module 54, the XY-axis moving module 55, and the single-axis moving module 56 are all motion units composed of a guide rail, a driving device (such as a motor), a transmission mechanism (such as a ball screw), and a control system, which belong to the mature prior art in the field of automated processing and will not be elaborated here.

[0046] As Figure 3 and Figure 4 shown, a cover body 64 is fixedly connected to one side of the flat seat 612, three side surfaces of the concave seat 622, and two inclined surfaces 623. The cover body 64 is used to contact the workpiece and enable the induction heating part 63 to heat the workpiece in the semi-closed chamber of the cover body 64.

[0047] By adopting the above technical solution, when preheating the H-shaped steel, the fine-tuning assembly 9 can move the first seat body 611 and the second seat body 621 towards the H-shaped steel, so that one side of the cover body 64 can fit with the outer surface of the H-shaped steel, and one side of the cover body 64 can contact the outer surface of the H-shaped steel, forming a semi-closed heating environment, making the heat energy generated by induction heating more concentrated on the workpiece and reducing the heat dissipated by convection, radiation and other means. This can not only improve the preheating efficiency, reduce the temperature gradient and local overheating phenomenon, but also reduce the overall energy consumption.

[0048] As Figure 3 , Figure 4 and Figure 8 shown, two openings 65 are symmetrically formed on the inner wall of the cover body 64, and two groups of pipe interfaces 66 respectively communicating with the two openings 65 are fixedly connected to both sides of the outer surface of the cover body 64. A recovery and separation assembly 7 is fixedly connected to one side of the first seat body 611 and the second seat body 621. The recovery and separation assembly 7 includes two shells 71 respectively fixedly connected to one side of the first seat body 611 and the second seat body 621, a partition plate 72 fixedly connected inside the shell 71 and dividing the inside of the shell 71 into two independent chambers, a pump body 73 and a hollow fiber membrane 75 fixedly connected to one side of the partition plate 72, an exhaust port 74 and an output port 76 respectively formed on both sides of the shell 71 and communicating with one of the chambers, the input end of the pump body 73 is communicated with the other chamber, and the output end of the pump body 73 is connected to the input end of the hollow fiber membrane 75. One group of the pipe interfaces 66 is communicated with one of the chambers inside the shell 71 through an exhaust pipe 67.

[0049] A filtering part 78 is fixedly connected to one side of the partition plate 72, the input end of the pump body 73 penetrates through the partition plate 72 and is connected to the filtering part 78. An opening 65 is formed on one side of the shell 71, and a side plate 77 is rotatably connected in the opening 65.

[0050] By adopting the above technical solution, one set of pipeline interfaces 66 is externally connected to a gas supply pipeline. The shielding gas (argon) enters the opening 65 from one set of pipeline interfaces 66, and then enters the cover body 64 from the opening 65, creating an inert environment inside the cover body 64 to inhibit the oxidation reaction, ensure the surface quality of the wing plate, and avoid the reaction between the steel surface and oxygen in the air to form oxide scale or other surface defects that are unfavorable for subsequent processing. Thus, a cleaner substrate is provided for laser cutting. When the pump body 73 operates, a negative pressure can be generated in one of the chambers and the exhaust pipe 67. The exhaust pipe 67 sucks the gas in the cover body 64 into the chamber through another opening 65. The gas is first filtered by the filter part 78 to remove the particulate matter in the gas, and then the gas is discharged from the output end of the pump body 73 and enters the hollow fiber membrane 75. The hollow fiber membrane 75 is a polyimide hollow fiber membrane. The gas in the cover body 64 includes air (nitrogen and oxygen) and shielding gas (argon). When the gas enters the hollow fiber membrane 75, nitrogen and oxygen will preferentially pass through the membrane and enter another chamber due to their higher permeation rate. Argon, due to its low permeation rate, accumulates in the hollow fiber membrane 75 and can be discharged through the input end of the hollow fiber membrane 75, realizing the rough separation of the shielding gas. The recycled shielding gas can be used for laser cutting or re-entered into the cover body 64 for secondary utilization, reducing costs. The nitrogen and oxygen in the chamber are discharged through the exhaust port 74.

[0051] As Figure 3 , Figure 4 , Figure 6 and Figure 7 shown, on one side of each of the two housings 71 fixedly connected to one side of the two seat bodies 611, a deoxidizing and heat - equalizing assembly one 81 is connected. The deoxidizing and heat - equalizing assembly one 81 includes two seat bodies three 811 fixedly connected to one side of the two housings 71 respectively, two moving seats one 814 slidably connected inside the two seat bodies three 811 respectively, two grinding rollers one 813 rotatably connected inside the two moving seats one 814 respectively, two motors one 812 fixedly connected to one side of the two seat bodies three 811 respectively, and an electric push rod one fixedly connected inside the seat body three 811 with its telescopic end fixedly connected to the side of the moving seat one 814. And on one side of each of the two seat bodies three 811, an avoidance groove for accommodating the motor one 812 is provided. The output shafts of the two motors one 812 are respectively fixedly connected to one end of the two grinding rollers one 813.

[0052] On one side of each of the two said housings 71 fixedly connected to one side of the two said seat bodies II 621, a deoxidizing and heat - equalizing assembly II 82 is connected. The deoxidizing and heat - equalizing assembly II 82 includes two seat bodies IV 821 fixedly connected to one side of the two housings 71 respectively, three moving seats II 822 slidably connected inside the seat bodies IV 821, three electric push rods II 827 fixedly connected inside the seat bodies IV 821 and with their telescopic ends fixedly connected to the three moving seats II 822 respectively, three grinding rollers II 823 rotatably connected inside the three moving seats II 822 respectively, and three driving parts fixedly connected inside the three moving seats II 822 for driving the grinding rollers II 823 to rotate.

[0053] The driving part includes a motor II 825 fixedly connected inside the moving seat II 822 and a synchronous driving part 826 (a synchronous transmission assembly composed of two synchronous pulleys and a synchronous belt) connecting the output shaft of the motor II 825 and one end of the grinding roller II 823. Two groups of grinding sheets 824 are also installed on the outer surfaces of the two seat bodies IV 821. Baffles 83 are fixedly connected to the outer surfaces of the seat body III 811 and the seat body IV 821.

[0054] By adopting the above - mentioned technical solution, when the seat body I 611 and the seat body II 621 move, the fine - tuning assembly 9 can make the seat body I 611 and the seat body II 621 move towards the H - shaped steel, so that the grinding roller I 813 and the grinding roller II 823 can contact the outer surface of the H - shaped steel. The motor I 812 and the motor II 825 drive the grinding roller I 813 and the grinding roller II 823 to rotate respectively to grind the outer surface of the H - shaped steel, removing surface unevenness and oxide layers to make the pre - heating more uniform. The grinding sheets 824 can grind the surface at the connection of the web and the flange. First, the grinding roller I 813 and the grinding roller II 823 can grind the outer surface of the H - shaped steel. After grinding, the steel surface is cleaner, free of oil stains and aged oxide layers, enabling more uniform heat transfer to the material interior during induction heating, avoiding excessive local temperature differences caused by uneven surface conditions, reducing the risk of thermal stress and deformation. At the same time, the outer surface of the ground steel is smoother, and the contact between the cover body 64 and the outer surface of the steel moves more smoothly.

[0055] Usage method: S1. The X - axis position of the two crack - inhibiting pre - heating assemblies I 61 and one of the crack - inhibiting pre - heating assemblies II 62 can be adjusted through the single - axis moving module I 52. The XY - axis position of the other crack - inhibiting pre - heating assembly II 62 can be adjusted through the XY - axis moving module 55. The outer side of the flange of the H - shaped steel is pre - heated through the induction heating part 63 in the two crack - inhibiting pre - heating assemblies I 61, and the inner side of the flange, the right - angle part and the web of the H - shaped steel are pre - heated through the induction heating part 63 in the two crack - inhibiting pre - heating assemblies II 62.

[0056] S2. When the two crack-inhibiting preheating components I 61 and the two crack-inhibiting preheating components II 62 move in the X-axis direction and are about to reach the cutting area, the fine-tuning component 9 drives the crack-inhibiting preheating components I 61 and the crack-inhibiting preheating components II 62 to move towards the H-shaped steel, so that the first grinding roller 813 and the second grinding roller 823 can contact the outer surface of the H-shaped steel. The first motor 812 and the second motor 825 drive the first grinding roller 813 and the second grinding roller 823 to rotate respectively to grind the outer surface of the H-shaped steel, removing the surface unevenness and oxide layer to make the preheating more uniform;

[0057] S3. After the first grinding roller 813 and the second grinding roller 823 finish grinding the cutting area, the cover 64 moves to the ground cutting area. One side of the cover 64 can contact the outer surface of the H-shaped steel, forming a semi-closed heating environment between the cover 64 and the H-shaped steel. The heat energy generated by induction heating is concentrated on the flange, reducing the heat dissipated by convection, radiation and other means;

[0058] S4. During the induction heating process, a protective gas is sent into the interior of the cover 64 through one of the pipe interfaces 66 to inhibit the oxidation reaction occurring on the outer surface of the H-shaped steel during the preheating process. The recovery and separation component 7 extracts the protective gas in the cover 64 through the exhaust pipe 67 and conducts filtration and membrane separation treatment to achieve the rough separation of the protective gas;

[0059] S5. The three-axis moving module 2 drives the laser cutting part 4 to move to the cutting position, and the H-shaped steel is laser cut by the laser cutting part 4. During the cutting process, the rotation adjustment part 3 can drive the laser cutting part 4 to rotate to achieve the adjustment of the cutting angle.

[0060] The above is only the preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cutting device for wing panel processing, comprising a machine platform (1) and a laser cutting unit connected to the machine platform (1), characterized in that: The upper end of the machine table (1) is connected to a driving displacement unit (5), and the driving displacement unit (5) comprises a workpiece table (51) fixedly connected to the upper end of the machine table (1), a single-axis movable module (52) connected to the workpiece table (51), a YZ axial movable module (54) fixedly connected to the outer surface of the single-axis movable module (52), an XY axial movable module (55) connected to the upper end of the workpiece table (51), and two single-axis movable modules (56) connected inside the single-axis movable module (52); The moving parts of the two single-axis moving modules (56) are both connected to the first crack suppression preheating component (61), and the Z-axis moving part of the YZ axial moving module (54) and the Y-axis moving part of the XY axial moving module (55) are both connected to the second crack suppression preheating component (62); The crack suppression preheating component one (61) comprises a seat body one (611) fixedly connected to the moving part of the single-axis moving module two (56) and a plane seat (612) connected to one side of the seat body one (611); the crack suppression preheating component two (62) comprises a seat body two (621) fixedly connected to the Y-axis moving part of the XY-axial moving module (55) and a concave seat (622) connected to one side of the seat body two (621), and an induction heating part (63) is fixedly connected to one side of the plane seat (612) and three side surfaces of the concave seat (622).

2. A cutting device for wing panel processing according to claim 1, characterized in that: The single-axis movable module group 1 (52) includes a screw axial movable portion connected to one side of the workpiece platform (51), a slider slidably connected to the other side of the workpiece platform (51), and a connecting plate (53) connecting the slider with the screw axial movable portion. The two single-axis movable modules 2 (56) are respectively connected to the inside of the slider and the screw axial movable portion. The outer surface of the concave seat (622) is symmetrically provided with two inclined surfaces (623), and the two inclined surfaces (623) are also fixedly connected to the induction heating portion (63).

3. A cutting device for wing panel processing according to claim 2, characterized in that: The seat body 1 (611) and the seat body 2 (621) are both connected with a fine adjustment component (9), and the fine adjustment component (9) comprises a movable groove (92) provided inside the seat body 1 (611) and the seat body 2 (621), a slide seat (94) slidably connected to the movable groove (92), a tooth key (95) provided on one side of the slide seat (94), and a gear (93) rotatably connected inside the movable groove (92) and meshing with the tooth key (95). One side of the seat body 1 (611) and the seat body 2 (621) is fixedly connected with a motor 3 (91), and the output shaft of the motor 3 (91) is fixedly connected to one end of the gear (93), and one end of the two slide seats (94) is respectively fixedly connected to one side of the plane seat (612) and one side of the concave seat (622).

4. A cutting device for wing panel processing according to claim 3, characterized in that: A cover body (64) is fixedly connected to one side of the plane seat (612), three side surfaces of the concave seat (622) and two inclined surfaces (623); the cover body (64) is used to contact the workpiece and enable the induction heating part (63) to heat the workpiece in a semi-enclosed chamber of the cover body (64).

5. A cutting device for wing panel processing according to claim 4, characterized in that: The cover body (64) has two openings (65) symmetrically formed on its inner wall, and two sets of pipe interfaces (66) respectively connected to the two openings (65) are fixedly connected to both sides of the outer surface of the cover body (64). One side of the seat body 1 (611) and the seat body 2 (621) are both fixedly connected to a recovery and separation assembly (7), and the recovery and separation assembly (7) comprises two shells (71) respectively fixedly connected to one side of the seat body 1 (611) and the seat body 2 (621), and a shell (71) fixedly connected to the inside of the shell (71) to divide the inside of the shell (71) into two A partition (72) with independent chambers, a pump body (73) and a hollow fiber membrane (75) fixedly connected to one side of the partition (72), an exhaust port (74) and an output port (76) respectively opened on both sides of the shell (71) and connected to one of the chambers, the input end of the pump body (73) is connected to the other chamber, and the output end of the pump body (73) is connected to the input end of the hollow fiber membrane (75), and one group of the pipeline interfaces (66) is connected to one of the chambers in the shell (71) through an exhaust pipe (67).

6. A cutting device for wing panel processing according to claim 5, characterized in that: A filter portion (78) is fixedly connected to one side of the partition (72), and an input end of the pump body (73) passes through the partition (72) and is connected to the filter portion (78). An opening (65) is provided on one side of the housing (71), and a side plate (77) is rotatably connected to the opening (65).

7. A cutting device for wing panel processing according to claim 6, characterized in that: One side of the two shells (71) fixedly connected to one side of the two seat bodies (611) is connected with a deoxidation and uniform heating component (81), and the deoxidation and uniform heating component (81) includes two seat bodies (811) fixedly connected to one side of the two shells (71), two movable seats (814) respectively slidably connected inside the two seat bodies (811), a grinding roller (813) rotatably connected inside the two movable seats (814), two motors (812) fixedly connected to one side of the two seat bodies (811), an electric push rod (812) fixedly connected inside the seat body (811) and having a telescopic end fixedly connected to the side of the movable seat (814), and one side of the two seat bodies (811) is provided with a avoidance groove for accommodating the motor (812), and the output shafts of the two motors (812) are respectively fixedly connected to one end of the two grinding rollers (813).

8. A cutting device for wing panel processing according to claim 7, characterized in that: One side of the two shells (71) fixedly connected to one side of the two seat bodies (621) is connected with a deoxidation and uniform heating component (82), and the deoxidation and uniform heating component (82) includes two seat bodies (821) fixedly connected to one side of the two shells (71), three movable seats (822) slidably connected inside the seat bodies (821), three electric push rods (827) fixedly connected inside the seat bodies (821) and whose telescopic ends are respectively fixed to the three movable seats (822), three grinding rollers (823) respectively rotatably connected inside the three movable seats (822), and three driving parts respectively fixedly connected inside the three movable seats (822) for driving the grinding rollers (823) to rotate.

9. A cutting device for wing panel processing according to claim 8, characterized in that: The driving part comprises a second motor (825) fixedly connected to the inside of the second movable seat (822) and a synchronous driving part (826) connecting the output shaft of the second motor (825) to one end of the second grinding roller (823); two groups of grinding plates (824) are also installed on the outer surfaces of the two fourth seats (821); baffles (83) are fixedly connected to the outer surfaces of the third seat (811) and the fourth seat (821); and the laser cutting unit comprises a three-axis movable module (2) connected to the machine platform (1), a rotation adjustment part (3) fixedly connected to one side of the Z-axis movable part of the three-axis movable module (2), and a laser cutting part (4) fixedly connected to one side of the rotation adjustment part (3).

10. A method for cutting a wing panel, which is applicable to the wing panel cutting device according to claim 9, characterized in that: The following steps are involved: S1. The X-axis position of two crack suppression preheating components one (61) and one of the crack suppression preheating components two (62) can be adjusted by a single-axis moving module one (52), and the XY-axis position of the other crack suppression preheating component two (62) can be adjusted by an XY-axial moving module (55). The outer side of the wing plate of the H-shaped steel is preheated by the induction heating parts (63) in the two crack suppression preheating components one (61), and the inner side of the wing plate, the right angle and the web of the H-shaped steel are preheated by the induction heating parts (63) in the two crack suppression preheating components two (62); S2. When the two crack suppression preheating components 1 (61) and the two crack suppression preheating components 2 (62) are moving in the X-axis direction and are about to reach the cutting area, the fine adjustment component (9) drives the crack suppression preheating component 1 (61) and the crack suppression preheating component 2 (62) to move toward the H-shaped steel, so that the grinding roller 1 (813) and the grinding roller 2 (823) can contact the outer surface of the H-shaped steel, and the motor 1 (812) and the motor 2 (825) respectively drive the grinding roller 1 (813) and the grinding roller 2 (823) to rotate and grind the outer surface of the H-shaped steel to remove surface unevenness and oxide layer to make the preheating more uniform; S3. After the grinding roller 1 (813) and the grinding roller 2 (823) have finished grinding the cutting area, the cover (64) moves to the cutting area after grinding, and one side of the cover (64) can contact the outer surface of the H-shaped steel, so that a semi-enclosed heating environment is formed between the cover (64) and the H-shaped steel, and the heat energy generated by induction heating is concentrated on the wing plate, thereby reducing the heat lost by convection, radiation, etc.; S4, during the induction heating process, a protective gas is introduced into the housing (64) through one of the pipeline interfaces (66) to suppress the oxidation reaction occurring on the outer surface of the H-beam during the preheating process, and the recovery and separation component (7) extracts the protective gas in the housing (64) through the exhaust pipe (67) and performs filtering and membrane separation treatment to achieve rough separation of the protective gas; S5, the three-axis moving module (2) drives the laser cutting unit (4) to move to the cutting position, and the H-shaped steel is laser cut by the laser cutting unit (4). During the cutting process, the rotating adjustment unit (3) can drive the laser cutting unit (4) to rotate to adjust the cutting angle.

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