A metal honeycomb aluminum plate processing laser cutting equipment

Abstract

The present invention relates to the technical field of laser cutting equipment, and specifically proposes a metal honeycomb aluminum plate processing laser cutting equipment; a cutting bed; a cutting mechanism, which is assembled on the cutting bed, and the cutting mechanism includes a laser cutting head that moves along the horizontal, longitudinal and vertical directions to perform cutting; a linkage frame, which is fixed on the horizontal and longitudinal moving part of the cutting mechanism and extends to the bottom of the cutting bed; a cooling assembly, and an adsorption fixing frame, which is fixedly assembled on the cutting bed and is used to adsorb and fix the honeycomb aluminum plate to prevent the plate from moving. The cutting equipment provided by the present invention further solves the problems of uneven temperature distribution at the upper and lower plate surfaces, temperature gradients and unreasonable cooling position control when cutting metal honeycomb aluminum plates, and cutting quality problems such as plate deformation, delamination, and slag residue and burrs near the lower edge of the cut plate, so as to ensure the quality of laser cutting of metal honeycomb aluminum plates.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting equipment, and specifically provides a metal honeycomb aluminum plate processing laser cutting equipment. Background Art

[0002] Aluminum honeycomb panels are composite panels composed of two aluminum face sheets sandwiched between a honeycomb-shaped metal core. Produced through a specific process, they feature lightweight, high strength, corrosion resistance, and excellent sound and heat insulation. They are widely used in architectural decoration, transportation, aerospace, and other fields. During production, finished aluminum honeycomb panels require further cutting, including trimming and opening holes, based on the specific dimensions and structure of the panels. Laser cutting is a common and efficient method.

[0003] Laser cutting equipment uses a laser cutting head to emit a high-energy laser beam focused on the cutting point of the plate for cutting. During cutting, the temperature at the cutting point rises sharply, generating a large amount of heat, which will spread to the area near the cutting of the plate, forming a heat-affected zone. The aluminum panels in the honeycomb aluminum plate and the metal plates that constitute the honeycomb core are generally thin, and the aluminum panels and the honeycomb core are a layered composite structure. When laser cutting the metal honeycomb aluminum plate, the high temperature problem may cause at least the following quality problems to the metal honeycomb aluminum plate:

[0004] 1) Heat-affected zone: During the laser cutting process, heat is transferred to the area around the cutting point of the plate, causing microstructural changes. This may increase the hardness or brittleness of the plate area near the cutting point, affecting the overall performance of the plate at the cutting edge.

[0005] 2) Deformation: High temperatures can cause thinner sheets to bend or warp, especially in the case of uneven heating or cooling. Deformation will seriously affect the flatness and dimensional accuracy of the sheet. For metal honeycomb aluminum panels, it may also cause delamination between the aluminum face sheet and the metal core material.

[0006] 3) Burrs and dross: Although this quality problem is mainly related to the laser cutting parameters, excessively high temperatures may also cause more molten material to fail to be effectively removed, leaving burrs or dross on the cut edge, affecting the flatness quality of the cut edge.

[0007] 4) Cracks: may cause cracks and affect the mechanical strength of the plate.

[0008] Based on the above-mentioned quality problems, under the existing technology, laser cutting equipment is generally provided with an auxiliary gas cooling mechanism, which is often integrated and installed at one end of the laser cutting head. The auxiliary gas is used for timely cooling and blowing away the slag, thereby weakening the impact of the high cutting temperature on the quality defects of the plate to a certain extent. However, the existing auxiliary gas cooling mechanism can only cool the upper plate surface of the plate from top to bottom as the laser cutting head moves, and the cooling position is not adjustable. However, for composite plates such as metal honeycomb aluminum plates, especially when the metal honeycomb aluminum plates are thicker, only cooling the upper plate surface of the plate can easily cause uneven temperature distribution on the upper and lower plate surfaces of the plate cutting, and there is a temperature gradient, so that cutting quality problems such as plate deformation, stratification, and slag residue and burrs near the lower edge of the plate cutting still occur, affecting the final cutting and forming quality of the metal honeycomb aluminum plates. Summary of the Invention

[0009] In order to solve the above problems, the present invention provides a metal honeycomb aluminum plate processing laser cutting equipment, which is used to solve the problems mentioned in the above background technology.

[0010] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a metal honeycomb aluminum plate processing laser cutting equipment, comprising: a cutting bed; a cutting mechanism, which is mounted on the cutting bed, and the cutting mechanism comprises a laser cutting head that moves in the horizontal, longitudinal and vertical directions to perform cutting; a linkage frame, which is fixed on the horizontal and longitudinal moving part of the cutting mechanism and extends to the bottom of the cutting bed; a cooling assembly, which is fixed on the linkage frame and is located below the cutting bed, and the cooling assembly is located directly below the laser cutting head; under the linkage cooperation between the linkage frame and the cutting mechanism, the cooling assembly moves along with the laser The cutting head moves synchronously in the horizontal transverse and horizontal longitudinal directions and maintains an unchanged relative position; the cooling assembly includes a plurality of spray guns which are hingedly mounted and distributed circumferentially around the laser cutting head, the spray guns spray cooling gas to cool the cutting area of the lower surface of the honeycomb aluminum plate and simultaneously blow away and clean the slag and metal chips, the nozzle of the spray gun is deflected toward the laser cutting head, and the deflection and elevation angles of the plurality of spray guns relative to the laser cutting head are synchronously adjustable, and the gas injection angle is changed by adjusting the deflection and elevation angle of the spray gun, thereby changing the adjustment accuracy of the heat-affected zone of the plate; and an adsorption fixing frame, which is fixedly mounted on the cutting bed and is used to adsorb and fix the honeycomb aluminum plate to prevent the plate from moving.

[0011] Preferably, the cooling assembly includes: a base fixed on the linkage frame; a horn fixed on the base and having its central axis coincident with the focus of the laser cutting head; a plurality of windows circumferentially distributed on the horn corresponding to the plurality of spray guns;

[0012] Multiple articulated seats are arranged in a one-to-one correspondence with multiple spray guns, forming a shell structure and are all fixed on the outer wall of the horn. The spray guns are hinged in the corresponding articulated seats and the nozzles are exposed from the corresponding windows; the end of the spray gun away from the nozzle extends outward from the articulated seat; and an adjustment drive mechanism is fixed on the base, which is used to drive the multiple spray guns to synchronously adjust the deflection and elevation angles.

[0013] Preferably, the spray gun includes: a nozzle in the shape of a round pancake, hinged inside the hinge seat, and the nozzle of the nozzle is located on the cylindrical surface; an air pipe, fixedly connected to the cylindrical surface of the nozzle, and extending outward from the hinge seat.

[0014] Preferably, the adjustment drive mechanism includes: a slewing bearing fixed on the base; a driving drum fixed on the inner ring of the slewing bearing; a guide drum fixed on the base and coaxially arranged with the horn drum; a plurality of driving members, which are arranged in a one-to-one correspondence with a plurality of spray guns, connected between the driving drum and the air pipe of the spray gun, and are all guided by the guide drum; under the guidance of the guide drum, when the driving drum rotates, the driving drum drives the spray gun to rotate around the hinge axis through the driving member to adjust the deflection and elevation angle.

[0015] Preferably, the cutting bed includes: a support frame; the cutting mechanism is assembled on the support frame; a serrated bed surface is fixed in the frame of the support frame, the serrated bed surface includes a plurality of serrated plates distributed in a row and fixed horizontally in the frame of the support frame, and a plurality of serial frames are fixed in series between the plurality of serrated plates; the serial frames include two serial plates each fixed on the plurality of serrated plates, and a plurality of parallel blocks are fixed between the two serial plates.

[0016] Preferably, the adsorption fixing frame includes: a lifting frame, which is installed in the frame of the supporting frame for lifting and sliding; a pipeline frame, which is installed above the lifting frame for vertical sliding cooperation, and the pipeline frame is a hollow pipeline structure for external vacuum pipeline; a number of springs, both ends of which are respectively fixed on the pipeline frame and the lifting frame; a plurality of branch pipes, which are all horizontally connected in the frame of the pipeline frame, and are distributed one-to-one directly below a plurality of serial racks; a plurality of support rods are vertically connected on the branch pipes, and the plurality of support rods on the same branch pipe pass vertically one-to-one through a plurality of parallel blocks of the serial rack at the upper position; the support rod is a pipe structure, and the top of the support rod is provided with an air hole for vacuum adsorption.

[0017] Preferably, the driving member includes: a slider, which is radially slidably installed on the guide cylinder; a movable pin, which is vertically fixed on the slider; a plurality of driving blocks fixed on the inner wall of the driving drum, which are arranged in a one-to-one correspondence with the plurality of driving members, and a guide hole vertically penetrated through the driving block and is radially inclined relative to the driving drum, and the guide hole extends on the horizontal plane, and the movable pin moves along the guide hole on the driving block at the corresponding position; at least one telescopic rod, the bottom end of which is vertically fixed on the slider; a connecting sleeve, which is hinged to the top of the telescopic rod and is sleeved and fixed on the air pipe of the spray gun at the corresponding position.

[0018] Preferably, the linkage frame includes: two suspension plates, both fixed on the horizontal longitudinal moving part of the cutting mechanism; a transverse guide rail, horizontally fixed between the two suspension plates; an electric slider, horizontally slidably installed on the transverse guide rail, and the electric slider moves horizontally on the transverse guide rail; the base is fixed on the top of the electric slider.

[0019] Preferably, a central tube is fixed at the center of the base, and the horn tube is sleeved and fixed on the inner wall of the central tube; and the guide tube is sleeved and fixed on the outer wall of the central tube.

[0020] Preferably, a ceramic coating is attached and fixed on the inner wall surface of the horn.

[0021] The above technical solution has the following advantages or beneficial effects: The present invention provides a metal honeycomb aluminum plate processing laser cutting equipment, which is provided with a linkage frame that moves synchronously with the cutting mechanism, and a cooling assembly that can cool the lower surface of the plate is equipped on the linkage frame, so that the upper and lower surfaces of the plate can be cooled synchronously during cutting, which can greatly reduce the temperature difference gradient on the upper and lower surfaces of the plate during the cutting process, and ensure the uniformity of cooling of the plate at the cutting point. The circumferential cooling distribution points formed by the circumferential cooling distribution points always surrounding the laser cutting head in the cooling assembly constitute a circumferential cooling isolation zone near the cutting point of the plate, thereby avoiding the rapid conduction of cutting heat to the vicinity of the cutting point of the plate. The adjustable design of the spray gun deflection angle in the cooling assembly can greatly improve the rationality of controlling the heat-affected zone; in addition, the synchronous tracking auxiliary cooling design of the cooling assembly improves the efficiency and pertinence of gas-assisted cooling, reduces the amount of cooling gas used, and the cooling assembly can blow away and clean the slag and metal debris formed by plate cutting. In summary, the cutting equipment provided by the present invention changes the existing cutting and cooling method of metal honeycomb aluminum panels, adopts a method of synchronous cooling of the upper and lower plates, improves the efficiency and rationality of cutting cooling, and further solves the problems of uneven temperature distribution at the upper and lower plate surfaces, temperature gradients, and unreasonable cooling position control during cutting of metal honeycomb aluminum panels, resulting in plate deformation, stratification, and slag residue and burrs near the lower edge of the cut plate, thereby ensuring the quality of laser cutting of metal honeycomb aluminum panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of a metal honeycomb aluminum plate processing laser cutting device provided by the present invention.

[0024] Figure 2 It is a side view of a metal honeycomb aluminum plate processing laser cutting device provided by the present invention.

[0025] Figure 3 It is a three-dimensional structural diagram of the linkage frame equipped with a cooling assembly and the cutting mechanism.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the serrated bed surface.

[0027] Figure 5 This is a three-dimensional assembly diagram of the adsorption fixing frame assembled on the cutting bed after the serrated plate is removed.

[0028] Figure 6 It is a three-dimensional structural diagram of the cooling assembly.

[0029] Figure 7 It is a three-dimensional cross-sectional view of the base, horn and guide tube assembly structure.

[0030] Figure 8 It is a three-dimensional structural diagram of the articulated seat.

[0031] Figure 9 It is a three-dimensional structural diagram of the drive component and spray gun assembly.

[0032] Figure 10 It is a schematic diagram of the three-dimensional structure of the metal honeycomb aluminum panel.

[0033] In the figure: 1, cutting bed; 11, supporting frame; 12, serrated bed surface; 121, serrated plate; 122, serial frame; 1221, fixed plate; 1222, serial plate; 1223, parallel block.

[0034] 2. Cutting mechanism; 21. Gantry frame; 22. Laser cutting head.

[0035] 3. Linkage rack; 31. Suspension plate; 32. Transverse guide rail; 33. Electric slider.

[0036] 4. Cooling assembly; 41. Base; 411. Center tube; 42. Horn tube; 421. Window; 43. Articulated seat; 44. Spray gun; 441. Air pipe; 442. Spray nozzle; 45. Adjusting drive mechanism; 451. Slewing bearing; 452. Driving drum; 4521. Ring gear; 4522. Driving block; 4523. Guide hole; 453. Guide cylinder; 4531. Slide rail; 454. Driving part; 4541. Slider; 4542. Moving pin; 4543. Telescopic rod; 4544. Connecting sleeve.

[0037] 5. Adsorption fixing frame; 51. Lifting frame; 52. Pipe frame; 521. Guide rod; 522. Connecting pipe; 53. Spring; 54. Branch pipe; 55. Support rod. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] Note: For the accuracy and uniformity of direction expression, in this article, the horizontal transverse direction, horizontal longitudinal direction, and vertical direction correspond to the X, Y, and Z axes in the Cartesian coordinate system respectively.

[0041] A metal honeycomb aluminum plate processing laser cutting equipment, metal honeycomb aluminum plate structure such as Figure 10 As shown, Figure 1 、 Figure 4 and Figure 5As shown, the device includes a cutting bed 1 with a horizontally placed metal honeycomb aluminum plate; the cutting bed 1 includes a support frame 11 and a sawtooth bed surface 12 fixed in the frame of the support frame 11, the sawtooth bed surface 12 includes a plurality of sawtooth plates 121 uniformly distributed along the horizontal longitudinal direction and horizontally welded in the frame of the support frame 11, a plurality of sawtooth plates 121 are commonly connected and fixed in series with a plurality of serial racks 122, and the plurality of serial racks 122 are uniformly arranged in the horizontal transverse direction; the serial rack 122 includes two fixed plates 1221 welded in the frame of the support frame 11 and two A connecting plate 1222 is horizontally welded between two fixed plates 1221. The connecting plate 1222 is vertically arranged relative to the serrated plate 121. A plug-in interface is provided on the connecting plate 1222 relative to each serrated plate 121. The serrated plates 121 are plugged into and welded to the corresponding plug-in interfaces on the connecting plate 1222. A plurality of parallel blocks 1223 are welded between the two serial plates 1222 on the same connecting frame 122, and the plurality of parallel blocks 1223 are evenly distributed in the horizontal and longitudinal directions. A circular guide hole is vertically penetrated through the parallel blocks 1223.

[0042] like Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, the cutting bed 1 is equipped with an adsorption fixing frame 5 for cutting and fixing the metal honeycomb aluminum plate; the adsorption fixing frame 5 includes a lifting frame 51 with a rectangular frame structure, and a vertical slide rail 4531 is fixed in the frame of the support frame 11, and the lifting frame 51 is slidably installed on the vertical slide rail 4531; in this embodiment, an electric hydraulic cylinder (not shown in the figure) can be vertically fixedly installed on the support frame 11, and the bottom end of the lifting frame 51 is fixed to the output end of the electric hydraulic cylinder, so that the lifting frame 51 is driven to rise and fall by the electric hydraulic cylinder; a pipeline frame 52 with a rectangular frame structure is arranged above the lifting frame 51, and the pipeline frame 52 is connected by four frame beams and pipelines welded to form a rectangular frame, and the bottom ends of the two frame beam pipelines in the horizontal longitudinal position on the pipeline frame 52 are vertically welded with a row of guide rods 521, and the guide rods 521 vertically penetrate and are slidably installed on the lifting frame 51, and the pipeline frame 52 is connected by two rows of guide rods The rod 521 is vertically slidably installed on the lifting frame 51, and each guide rod 521 is correspondingly sleeved with a spring 53, and the two ends of the spring 53 are respectively welded to the pipeline frame 52 and the lifting frame 51; the pipeline frame 52 is a hollow pipeline structure, and a joint pipe 522 is vertically welded on the side wall of the frame beam pipeline at one of the horizontal horizontal positions on the pipeline frame 52, and the end of the joint pipe 522 is connected to the vacuum pump through a pipeline; a plurality of branch pipes 54 are horizontally welded inside the pipeline frame 52, and the plurality of branch pipes 54 are distributed one-to-one directly below the plurality of serial racks 122; a plurality of support rods 55 are vertically welded on the branch pipe 54, and the plurality of support rods 55 on the same branch pipe 54 vertically pass through the guide holes of the plurality of parallel blocks 1223 of the serial rack 122 at the upper position; the support rod 55 is a pipe structure, and the top of the support rod 55 is provided with an air hole for vacuum adsorption.

[0043] The support rod 55 is vertically penetrated and installed in the guide hole of the parallel block 1223, realizing the guided and matched installation between the adsorption fixing frame 5 and the serrated bed surface 12. On the one hand, the sleeve support of the parallel block 1223 on the support rod 55 improves the strength of the support rod 55, thereby improving the stability of the adsorption fixing frame 5 for supporting the metal honeycomb aluminum plate. On the other hand, the parallel block 1223 provides a certain protection for the support rod 55, so that during the cutting process, a large amount of high-temperature slag is prevented from falling and contacting the support rod 55 to cause thermal deformation, so as to maintain the common support accuracy of multiple support rods 55.

[0044] When cutting the metal honeycomb aluminum plate, the plate can be first placed flat on the serrated bed surface 12 and the plate can be straightened. Then, the electric hydraulic cylinder is started to drive the lifting frame 51 to rise, so that the pipeline frame 52 rises synchronously, and then the plate is horizontally lifted on the plane formed by the top surfaces of multiple support rods 55. Subsequently, the support rods 55 perform vacuum adsorption and fixation on the lower plate surface of the plate, so that the metal honeycomb aluminum plate is horizontally fixed and positioned to avoid the plate from moving during the cutting process and affecting the cutting accuracy. Finally, the lifting frame 51 is lowered, so that the pipeline frame 52 drives the plate to descend synchronously through the multiple support rods 55, and then the plate is It falls on the serrated plate 121 of the serrated bed surface 12. At this time, no matter whether the supporting ends of all the serrated plates 121 are at the same height, the serrated plates 121 supplement and provide more supporting points relative to the support rods 55, thereby ensuring the stability of the plate placement. In addition, it should be added that in the present invention, since the pipeline frame 52 is elastically supported and installed on the lifting frame 51 by the spring 53, it can be placed on the supporting end of the serrated plate 121 as a buffer in the process of driving the plate to descend, so as to avoid the hard downward contact with the supporting end of the serrated plate 121 during the descent of the plate, thereby causing obvious indentations on the aluminum plate surface of the lower plate.

[0045] like Figure 1 、 Figure 2 and Figure 3 As shown, the cutting mechanism 2 is assembled on the cutting bed 1, and the cutting mechanism 2 includes a gantry frame 21 and a laser cutting head 22. The bottom end of the gantry frame 21 is mounted on the top of the support frame 11 along the horizontal longitudinal sliding direction, and the gantry frame 21 drives the laser cutting head 22 to move in the horizontal transverse, horizontal longitudinal and vertical directions to perform cutting; the laser cutting head 22 is assembled on the vertically moving end of the gantry frame 21. It should be noted that the gantry frame 21 and the laser cutting head 22 are both existing equipment, and the laser cutting head 22 represents a complete laser system including a laser emitting device. In addition, most of the existing laser cutting equipment is equipped with an integrated cooling system at the end of the laser cutting head 22, which is used to synchronously cool the upper surface of the plate during cutting. In the present invention, the existing cooling system is still retained at the end of the laser cutting head 22.

[0046] like Figure 1 、 Figure 2 and Figure 3As shown, the gantry frame 21 is fixedly equipped with a linkage frame 3, which includes two suspension plates 31 corresponding to the horizontal ends of the frame part welded on the gantry frame 21 for performing horizontal longitudinal movement, and a transverse guide rail 32 horizontally welded to the bottom ends of the two suspension plates 31. The transverse guide rail 32 passes horizontally from the bottom of the serrated bed surface 12 along the horizontal transverse direction. The transverse guide rail 32 also avoids the lifting frame 51 and is located below the lifting frame 51; an electric slider 33 is slidably installed on the transverse guide rail 32, and the electric slider 33 is on the transverse guide rail 32. Move horizontally; a cooling assembly 4 for spraying cooling auxiliary gas is fixed on the electric slider 33. Similarly, the cooling assembly 4 avoids the lifting frame 51 and is located below the lifting frame 51, and the cooling assembly 4 is located directly below the laser cutting head 22. In the present invention, the cooling assembly 4 maintains the linkage with the gantry frame 21 through the linkage frame 3 as a medium. On the one hand, the linkage frame 3 as a whole moves synchronously with the frame part that performs horizontal longitudinal movement on the gantry frame 21. On the other hand, the electric slider 33 and the gantry frame The horizontally moving parts in the gantry frame 21 maintain synchronous horizontally moving, so that under the linkage cooperation between the linkage frame 3 and the gantry frame 21, the cooling assembly 4 moves synchronously with the laser cutting head 22 in the horizontally and vertical directions and maintains the relative position unchanged; it should be added that the displacement drive of both the electric slider 33 and the moving parts performing horizontally moving in the gantry frame 21 are essentially motor-driven. Therefore, during the displacement process, the driving motors of the two can input the same displacement signal to achieve synchronous displacement drive, or, an existing displacement sensor is installed at the end of the laser cutting head 22 for real-time monitoring of the horizontal and horizontal distance position of the laser cutting head 22 relative to the reference point. In the closed-loop control system composed of a displacement sensor, a signal controller, an execution motor, etc., the execution motor here refers to the drive motor used by the electric slider 33, the displacement sensor sends a position signal, the signal controller receives the position signal and sends a control signal to the execution motor, and the execution motor receives the control signal to achieve synchronous drive. In actual implementation, the optimal method is selected to achieve synchronous linkage.

[0047] like Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, the cooling assembly 4 includes a base 41 fixed to the electric slider 33 by bolts, and a center tube 411 is welded to the center of the base 41, and the center tube 411 is coaxially arranged with the laser cutting head 22; the upper end surface of the base 41 is reserved with an annular overlapping surface in the center tube 411, and a horn 42 is welded inside the center tube 411, and the bottom end of the horn 42 is in contact with the overlapping surface, and the horn mouth of the horn 42 is set upward, and the central axis of the horn 42 coincides with the focus of the laser cutting head 22, and a ceramic coating is attached to and fixed on the inner wall surface of the horn 42. During the laser cutting process, the slag and metal debris produced by the cutting will fall into the horn 42, which plays a role in centralized guidance and collection of the cutting waste. The horn 42 can cover and protect the structure below the horn 42 in the cooling assembly 4, and the inner wall surface of the horn 42 with the ceramic coating can prevent the slag from directly contacting the metal material of the horn 42 itself. Touch; a plurality of windows 421 are evenly distributed circumferentially on the horn 42; a hinge seat 43 is fixed to each window 421 on the outer wall of the horn 42 by screws, and the hinge seat 43 is a shell structure, and each hinge seat 43 is equipped with a spray gun 44, the spray gun 44 comprises a pancake-shaped nozzle 442 and an air pipe 441 welded to the cylindrical surface of the nozzle 442, the nozzle 442 is built-in and hinged in the hinge seat 43, the nozzle of the nozzle 442 is located on the cylindrical surface and biased towards the laser cutting head 22, the air pipe 441 extends outward from the hinge seat 43, and the end of the air pipe 441 is connected to a branch hose, a pipe hole is provided on the base 41, the branch hose passes through the pipe hole, and multiple branch hoses are centrally connected to the same main hose, and the main hose is connected to the external air supply device. It should be noted that in this embodiment, nitrogen is used as the auxiliary cooling gas. In addition, the connecting pipeline system is not shown in the accompanying drawings.

[0048] like Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, the deflection and elevation angles of the plurality of spray guns 44 relative to the laser cutting head 22 are synchronously adjustable, and the base 41 is equipped with an adjustment drive mechanism 45 for synchronously adjusting the deflection and elevation angles of the plurality of spray guns 44. The adjustment drive mechanism 45 includes a slewing bearing 451 fixed to the base 41 by screws, a driving drum 452 is welded on the inner ring of the slewing bearing 451, a guide drum 453 is welded on the central drum 411, and a plurality of slide rails 4531 corresponding to the plurality of spray guns 44 are distributed circumferentially on the guide drum 453, and the direction of the slide rails 4531 is along the radial direction of the guide drum 453; a plurality of driving blocks 4522 corresponding to the plurality of spray guns 44 are welded circumferentially on the inner wall of the driving drum 452. A guide hole 4523 is vertically penetrated through the upper portion of the drive drum 452, radially and obliquely arranged relative to the drive drum 452. The guide hole 4523 extends horizontally. A drive member 454 is mounted between each drive block 4522 and the corresponding spray gun 44. The drive member 454 comprises a slider 4541 slidably mounted on a corresponding slide rail 4531. A movable pin 4542 is vertically welded to the slider 4541, which moves along the guide hole 4523 in the corresponding drive block 4522. Two telescopic rods 4543 are vertically welded to the slider 4541. A connecting sleeve 4544 is hingedly connected between the top ends of the two telescopic rods 4543. The connecting sleeve 4544 is welded to the air pipe 441 of the corresponding spray gun 44. A gear ring 4521 is also welded to the drive drum 452. A motor equipped with a gear that mates with the gear ring 4521 can be mounted on the base 41 to drive the rotation of the drive drum 452.

[0049] In the cooling assembly 4 provided by the present invention, multiple spray guns 44 are distributed circumferentially around the laser cutting head 22, and under the linkage action of the linkage frame 3, the distribution positions of the multiple spray guns 44 relative to the laser cutting head 22 can always be kept unchanged. The multiple spray guns 44 are used together to synchronously cool the lower plate surface of the metal honeycomb aluminum plate. Before cutting, according to the specific thickness and material of the metal honeycomb aluminum plate, on the one hand, the cutting speed, laser power, laser focus position and other parameters of the laser cutting equipment can be adjusted, and on the other hand, the deflection and elevation angle of the spray gun 44 can also be adjusted.

[0050] When adjusting the deflection and elevation angles, the driving drum 452 is driven to rotate by the motor, and the driving drum 452 drives the slider 4541 to slide along the slide rail 4531 through the driving block 4522, and the slider 4541 drives the spray gun 44 to rotate in the hinge seat 43 through the two telescopic rods 4543 and the connecting sleeve 4544, and then adjusts the spray angle of the nozzle of the nozzle 442; during the laser cutting process, a large amount of heat will be generated instantly at the cutting point of the plate. On the one hand, a certain temperature needs to be maintained to ensure cutting. On the other hand, timely cooling and heat dissipation are required to avoid cutting defects caused by excessive temperature. The purpose of synchronously adjusting the deflection and elevation angles of multiple spray guns 44 is to accurately adjust and control the temperature influence zone during cutting, so that the cooling position formed after adjusting the elevation angle falls in the most suitable area, which can not only ensure the cutting temperature, but also minimize the influence of high cutting temperature on the cutting quality.

[0051] During actual cutting, after the metal honeycomb aluminum plate is adsorbed and fixed by the adsorption fixing frame 5 (adsorption fixing also avoids the movement of the plate when the cooling assembly 4 blows air to cool), laser cutting can be carried out. During the cutting process, on the one hand, the cooling system at the end of the laser cutting head 22 can cool the upper plate surface end of the plate, and under the linkage of the linkage frame 3, the cooling assembly 4 can cool the lower plate surface of the plate. In the present invention, the upper and lower plate surfaces of the plate can be cooled synchronously during cutting, which can greatly reduce the temperature difference gradient between the upper and lower plate surfaces of the plate during the cutting process, ensuring that the plate is at the cutting position. The uniformity of cooling, the circumferential cooling distribution points formed by the cooling assembly 4 around the laser cutting head 22 form a circumferential cooling isolation zone near the cutting point of the plate, thereby avoiding the rapid conduction of cutting heat to the cutting point of the plate. The adjustable design of the spray gun 44 in the cooling assembly 4 can greatly improve the rationality of controlling the heat-affected zone. In addition, the synchronous tracking auxiliary cooling design of the cooling assembly 4 improves the efficiency and pertinence of the gas-assisted cooling, reduces the amount of cooling gas used, and the cooling assembly 4 can blow away and clean the slag and metal debris formed by the plate cutting. In summary, the cutting equipment provided by the present invention changes the existing cutting cooling method of the metal honeycomb aluminum plate, adopts the method of synchronous cooling of the upper and lower plates, improves the efficiency and rationality of the cutting cooling, and further solves the problems of plate deformation, delamination, slag residue and burrs near the lower edge of the plate cutting due to the uneven temperature distribution at the upper and lower plate surfaces, the existence of temperature gradients and unreasonable cooling position control during the cutting of the metal honeycomb aluminum plate, thereby ensuring the quality of the laser cutting of the metal honeycomb aluminum plate.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A metal honeycomb aluminum plate processing laser cutting equipment, characterized by: include: Cutting bed (1); A cutting mechanism (2) is mounted on the cutting bed (1), and the cutting mechanism (2) includes a laser cutting head (22) that moves in horizontal, longitudinal, and vertical directions to perform cutting; A linkage frame (3) is fixed to the horizontal longitudinal moving portion of the cutting mechanism (2) and extends to the bottom of the cutting bed (1); A cooling assembly (4) is fixed on the linkage frame (3) and is located below the cutting bed (1), and the cooling assembly (4) is located directly below the laser cutting head (22); under the linkage cooperation between the linkage frame (3) and the cutting mechanism (2), the cooling assembly (4) moves synchronously with the laser cutting head (22) in the horizontal and vertical directions and maintains a constant relative position; the cooling assembly (4) includes a plurality of spray guns (44) that are hingedly installed and circumferentially distributed around the laser cutting head (22), the spray guns (44) spray cooling gas to cool the cutting area of the lower plate surface of the honeycomb aluminum plate and simultaneously blow away and clean slag and metal chips, the nozzle of the spray gun (44) is deflected toward the laser cutting head (22), and the deflection elevation angles of the plurality of spray guns (44) relative to the laser cutting head (22) are synchronously adjustable, and the gas injection angle is changed by adjusting the deflection elevation angle of the spray gun (44), thereby changing the adjustment accuracy of the heat-affected zone of the plate; and an adsorption fixing frame (5), fixedly assembled on the cutting bed (1), for adsorbing and fixing the honeycomb aluminum plate to prevent the plate from moving; The cooling assembly (4) comprises: A base (41) is fixed on the linkage frame (3); A horn (42) is fixed on the base (41) and its central axis coincides with the focus of the laser cutting head (22); a plurality of windows (421) are circumferentially distributed on the horn (42) and are arranged in a one-to-one correspondence with the plurality of spray guns (44); A plurality of hinged seats (43) are provided in a one-to-one correspondence with a plurality of spray guns (44), and are in a shell structure and are all fixed on the outer wall of the horn (42). The spray guns (44) are hinged in the corresponding hinged seats (43) and the nozzles are exposed from the corresponding windows (421); the ends of the spray guns (44) away from the nozzles extend outward from the hinged seats (43); and an adjustment driving mechanism (45), which is fixed on the base (41) and is used for driving a plurality of spray guns (44) to synchronously adjust the deflection and elevation angles.

2. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 1, characterized in that: The spray gun (44) comprises: The nozzle (442) is in the shape of a circular pancake and is hingedly mounted in the hinge seat (43). The nozzle of the nozzle (442) is located on the cylindrical surface. The air pipe (441) is fixedly connected to the cylindrical surface of the nozzle (442) and extends outward from the hinge seat (43).

3. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 2, characterized in that: The regulating drive mechanism (45) comprises: A slewing bearing (451) is fixed on the base (41); A driving drum (452) is fixed on the inner ring of the slewing bearing (451); A guide tube (453) is fixed on the base (41) and is coaxially arranged with the horn tube (42); A plurality of driving members (454) are arranged in a one-to-one correspondence with the plurality of spray guns (44), connected between the driving drum (452) and the air pipe (441) of the spray gun (44), and are all guided by the guide drum (453); under the guidance of the guide drum (453), when the driving drum (452) rotates, the driving drum (452) drives the spray gun (44) to rotate around the hinge axis through the driving members (454) to adjust the deflection and elevation angle.

4. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 1, characterized in that: The cutting bed (1) comprises: Support frame (11); the cutting mechanism (2) is assembled on the support frame (11); A sawtooth bed surface (12) is fixed in the frame of a support frame (11), the sawtooth bed surface (12) includes a plurality of sawtooth plates (121) distributed in a row and fixed horizontally in the frame of the support frame (11), a plurality of serial racks (122) are fixed in series between the plurality of sawtooth plates (121), and the serial racks (122) include two serial plates (1222) fixed on the plurality of sawtooth plates (121), and a plurality of parallel blocks (1223) are fixed between the two serial plates (1222).

5. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 4, characterized in that: The adsorption fixing frame (5) comprises: A lifting frame (51) is installed in a lifting and sliding manner in the frame of the supporting frame (11); A pipeline frame (52) is vertically slidably mounted above the lifting frame (51), wherein the pipeline frame (52) is a hollow pipeline structure for connecting an external vacuum pipeline; A plurality of springs (53), both ends of which are fixed on the pipeline frame (52) and the lifting frame (51); A plurality of branch pipes (54) are horizontally connected in the frame of the pipe frame (52) and are distributed one-to-one directly below the plurality of serial racks (122); a plurality of support rods (55) are vertically connected and provided on the branch pipes (54); the plurality of support rods (55) on the same branch pipe (54) vertically pass through the plurality of parallel blocks (1223) of the serial rack (122) at the upper position one-to-one; the support rods (55) are of a pipe structure, and the top ends of the support rods (55) are provided with air holes for vacuum adsorption.

6. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 3, characterized in that: The driving member (454) comprises: A slider (4541) is radially slidably mounted on the guide cylinder (453); A movable pin (4542) is vertically fixed on the slider (4541); a plurality of driving blocks (4522) are fixed on the inner wall of the driving drum (452), and are arranged in a one-to-one correspondence with the plurality of driving members (454); a guide hole (4523) is vertically opened on the driving block (4522) and is arranged radially and obliquely relative to the driving drum (452); the guide hole (4523) extends on a horizontal plane, and the movable pin (4542) moves along the guide hole (4523) on the corresponding position driving block (4522); At least one telescopic rod (4543), the bottom end of which is vertically fixed on the slider (4541); The connecting sleeve (4544) is hinged on the top end of the telescopic rod (4543) and is sleeved and fixed on the air pipe (441) of the spray gun (44) at the corresponding position.

7. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 1, characterized in that: The linkage frame (3) comprises: Two hanging plates (31) are fixed on the horizontal and longitudinal moving parts of the cutting mechanism (2); A transverse guide rail (32) is horizontally fixed between the two suspension plates (31); The electric slider (33) is horizontally slidably mounted on the transverse guide rail (32), and the electric slider (33) moves horizontally on the transverse guide rail (32); the base (41) is fixed to the top end of the electric slider (33).

8. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 3, characterized in that: A central tube (411) is fixed at the center of the base (41), the horn tube (42) is sleeved and fixed on the inner wall of the central tube (411), and the guide tube (453) is sleeved and fixed on the outer wall of the central tube (411).

9. The laser cutting equipment for processing metal honeycomb aluminum panels according to claim 1, characterized in that: A ceramic coating is attached and fixed on the inner wall surface of the horn (42).

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