Thin-wall metal plate laser cutting anti-deformation device based on electromagnetic auxiliary structure

Abstract

The invention relates to the technical field of metal plate laser cutting, and discloses a thin-wall metal plate laser cutting anti-deformation device based on an electromagnetic auxiliary structure, which comprises a supporting table body and a supporting equipment body, a laser cutting head is slidably mounted on the supporting equipment body, and a matching group, a sliding table provided with a driving group and a supporting part are mounted on the laser cutting head; the supporting part comprises concentric-square-shaped bearing blocks, supporting sets are installed in the concentric-square-shaped bearing blocks in a matched mode, a material containing set and an anti-deformation mechanism are installed between every two adjacent concentric-square-shaped bearing blocks, each anti-deformation mechanism comprises two installation tables fixedly arranged on the left side wall and the right side wall of a supporting table body, and an adjusting set is jointly arranged between the two installation tables in a sliding mode. An auxiliary set is arranged in the supporting table body and located under the adjusting set. The thin-wall metal plate laser cutting anti-deformation device can effectively solve the problems that in the prior art, a thin-wall metal plate protrudes and is not flat in the placing work process.

Description

Technical Field

[0001] The present invention relates to the technical field of sheet metal laser cutting, and particularly relates to a deformation prevention device for thin-walled sheet metal laser cutting based on an electromagnetic auxiliary structure. Background Art

[0002] As a component finely processed from metal sheets, thin-walled sheet metal has penetrated into many high-end manufacturing fields such as automobile manufacturing, aerospace, electronic technology, and household appliances with its significant advantages such as lightweight design, efficient use of materials, and compact structural layout, and has become an indispensable key component.

[0003] Laser cutting, as one of the mainstream technologies in the current thin-walled sheet metal processing field, uses a laser beam with a high energy density as a heat source to precisely cut the sheet metal, thereby obtaining a sample meeting the design requirements.

[0004] Although laser cutting has a fast cutting speed, excellent precision, and a small heat-affected zone, there are still many challenges in the process of cutting thin-walled sheet metal. Among them, due to the thin wall thickness of the thin-walled sheet metal, geometric deformation problems such as bulging and unevenness will inevitably occur during the placement work, and the laser cutting equipment cannot guarantee the cutting precision and the quality of the final sample when cutting the deformed sheet metal. Summary of the Invention

[0005] In view of the above-mentioned disadvantages of the prior art, the present invention provides a deformation prevention device for thin-walled sheet metal laser cutting based on an electromagnetic auxiliary structure, which can effectively solve the problems of bulging and unevenness generated by thin-walled sheet metal during the placement work in the prior art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: The present invention provides a deformation prevention device for thin-walled sheet metal laser cutting based on an electromagnetic auxiliary structure, including: A support table body, on two relatively close side walls of the support table body, two electromagnets are respectively slidably arranged through electric sliders; A deformation prevention mechanism, the deformation prevention mechanism includes two mounting platforms fixedly arranged on the left and right side walls of the support table body, an adjustment group is slidably arranged between the two mounting platforms, and an auxiliary group is arranged inside the support table body and directly below the adjustment group; A support equipment body, a laser cutting head is slidably mounted on the support equipment body, and a cooperation group is mounted on the laser cutting head; Sliding tables, two sliding tables are provided and fixedly mounted on the left and right side walls at the rear of the support table body, sliding grooves are formed on both sliding tables, and a driving group is arranged inside the sliding grooves; The supporting part, the supporting part includes a number of U-shaped supporting blocks slidably arranged on the inner wall of the supporting table body through electric sliders, and a supporting group is installed inside the U-shaped supporting blocks in a matching manner, and a material holding group is installed between two adjacent U-shaped supporting blocks; Among them, the adjusting group includes a mounting plate slidably arranged between two mounting tables. Threaded rods with lower end faces rotatably connected to the two mounting tables are connected to both ends of the mounting plate. A leveling member is also arranged on the lower end face at the center position of the mounting plate; Among them, the auxiliary group includes a rotating shaft fixedly connected to the output shaft of an external motor. A supporting member that cooperates with the leveling member is fixedly arranged on the upper end face of the rotating shaft.

[0007] Furthermore, the leveling member includes a hexagonal table rotatably arranged on the lower end face of the mounting plate through a bearing. A leveling plate is fixedly arranged on the outer wall of the hexagonal table along the circumferential direction through a tension spring. A leveling shaft is rotatably arranged at the bottom end of the leveling plate.

[0008] Furthermore, the supporting member includes an adjusting disk fixedly arranged on the upper end face of the rotating shaft. A number of arc-shaped grooves are opened on the end face of the adjusting disk along the circumferential direction. A round rod is slidably arranged inside the arc-shaped grooves. A T-shaped supporting plate is fixedly arranged on the upper end face of the round rod. A connecting rod slidably connected to the supporting table body is fixedly arranged on the lower end face of the T-shaped supporting plate. The lower end face of the round rod is fixedly connected to the connecting rod through a strip-shaped plate.

[0009] Furthermore, the supporting group includes a U-shaped supporting platform slidably arranged inside the U-shaped supporting block through a spring. A T-shaped plate is slidably arranged inside the U-shaped supporting platform. A number of supporting groups are fixedly arranged on the upper end face of the T-shaped plate. Each supporting group includes three conical supporting rods.

[0010] Furthermore, three clamping groups are slidably arranged inside the U-shaped supporting platform along the front-back direction. Each clamping group includes two clamping plates with conical grooves that clamp the corresponding conical supporting rods. The two clamping plates in the same group are connected by a spring. A number of collecting groups are also arranged inside the U-shaped supporting platform. Each collecting group includes two square plates with a V-shaped position and through grooves opened on the end faces. The two square plates are respectively connected to the clamping plates through torsion springs.

[0011] Furthermore, the material holding group includes a number of articulated rods slidably arranged inside the supporting table body along the up-down direction. Two support plates respectively fixedly connected to the corresponding U-shaped supporting blocks are articulated to the circumferential outer wall of the articulated rod in a V shape. Two material receiving plates are placed between the two support plates in a matching manner. The two material receiving plates are connected by a torsion spring. A number of circular through grooves extending along the left-right direction are opened on the end faces of the support plates and the material receiving plates.

[0012] Further, the driving group includes electric sliders slidably arranged inside two sliding grooves. The upper ends of the electric sliders are fixedly connected to the supporting device body. The lower end surfaces of the electric sliders are fixedly provided with two L-shaped telescopic blocks and a square plate located between the two L-shaped telescopic blocks. The end surface of the square plate is rotatably connected to a cylindrical rod passing through the supporting table body. Inside the supporting table body and at the top of the cylindrical rod, a gear is fixedly provided. The upper end surfaces of the horizontal sections of the two L-shaped telescopic blocks are both fixedly provided with racks meshing and driving with the gear. Connectors are respectively arranged on the end surfaces of the two racks.

[0013] Further, the connectors include connecting plates slidably arranged in the up and down direction and having sliding grooves formed inside. There are two connecting plates arranged in the up and down direction inside the supporting table body. The inner parts of the upper connecting plate are respectively slidably connected to several loop-shaped bearing platforms and the front rack. The inner parts of the lower connecting plate are respectively slidably connected to several T-shaped plates and the rear rack.

[0014] Further, the matching group includes an annular ring rotatably sleeved on the outer wall of the laser cutting head. A plurality of rectangular grooves are opened upward along the circumferential direction on the lower end surface of the annular ring. Inside the rectangular grooves, matching plates with rollers at the lower end surfaces are arranged through torsion springs. Stretch belts are connected between adjacent matching plates.

[0015] The technical solution provided by the present invention has the following beneficial effects compared with the prior art: The present invention is provided with a flattening member. Through the pressing and flattening of the flattening roller and the support of the T-shaped bearing plate, the surface unevenness of the thin-walled sheet metal during placement can be effectively eliminated. At the same time, through the electromagnetic fixation of the electromagnets at the four corners, the sheet metal will not retract, significantly reducing the deformation of the sheet metal during placement, and then ensuring the laser cutting accuracy in the later stage. At the same time, during the subsequent cutting process, the isolation areas on the upper surface and the lower surface of the sheet metal in a bowl shape can effectively inhibit the ejection of metal chips, thereby protecting the upper and lower surfaces of the sheet metal from being scratched and improving the surface finish and accuracy of the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 is a three-dimensional structural schematic diagram of the anti-deformation structure in an embodiment of the present invention; Figure 3Schematic three-dimensional structure diagram of the supporting member and the flattening member in the embodiment of the present invention; Figure 4 Schematic three-dimensional structure diagram of a partial structure of the driving group in the embodiment of the present invention; Figure 5 Schematic plan structure diagram of the driving group and the material receiving group in the embodiment of the present invention; Figure 6 In the embodiment of the present invention Figure 5 Schematic diagram of the enlarged partial structure at position A; Figure 7 Schematic three-dimensional structure diagram of the supporting part in the embodiment of the present invention; Figure 8 In the embodiment of the present invention Figure 7 Schematic diagram of the enlarged partial structure at position B; Figure 9 Schematic three-dimensional structure diagram of the matching group in the embodiment of the present invention; Figure 10 Schematic diagram of the state transformation of the anti-deformation mechanism in the embodiment of the present invention.

[0018] The reference numerals in the figure respectively represent: 1, support table body; 2, anti-deformation mechanism; 21, mounting table; 22, adjustment group; 221, mounting plate; 222, threaded rod; 223, flattening member; 2231, hexagonal table; 2232, flattening plate; 2233, flattening shaft; 23, auxiliary group; 231, rotating shaft; 232, supporting member; 2321, adjustment disc; 2322, T-shaped supporting plate; 2323, connecting rod; 3, supporting equipment body; 31, laser cutting head; 32, matching group; 321, annular ring; 322, rotating roller; 323, matching plate; 4, sliding table; 41, driving group; 411, L-shaped expansion block; 412, square plate; 413, gear; 414, rack; 415, connecting member; 4151, connecting plate; 5, supporting part; 51, U-shaped supporting block; 52, supporting group; 521, U-shaped supporting platform; 5211, clamping plate; 5212, square plate; 522, T-shaped plate; 523, conical supporting rod; 53, material receiving group; 531, hinge rod; 532, supporting plate. Detailed implementation manners

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] Embodiment:

[0022] Please refer to Figures 1 - 10 , the present invention provides a technical solution: a thin-walled sheet metal laser cutting anti-deformation device based on an electromagnetic auxiliary structure, including: A support table body 1, on two relatively close side walls of the support table body 1, two electromagnets are respectively slidably arranged through electric sliders, and waist-shaped grooves are respectively opened on the left and right side walls of the support table body 1 near the rear end; An anti-deformation mechanism 2, the anti-deformation mechanism 2 includes two mounting platforms 21 fixedly arranged on the left and right side walls of the support table body 1, an adjustment group 22 is slidably arranged between the two mounting platforms 21, and an auxiliary group 23 is arranged inside the support table body 1 and directly below the adjustment group 22; A support equipment body 3, a laser cutting head 31 is slidably mounted on the support equipment body 3, and a cooperation group 32 is mounted on the laser cutting head 31; A sliding table 4, there are two sliding tables 4 and they are fixedly mounted on the left and right side walls of the support table body 1 near the rear, sliding grooves are opened on both sliding tables 4, and a driving group 41 is arranged inside the sliding grooves; A support part 5, the support part 5 includes a plurality of U-shaped supporting blocks 51 slidably arranged on the inner wall of the support table body 1 through electric sliders, two top plates are arranged on the lower end surface of the U-shaped supporting blocks 51 through torsion springs, a support group 52 is cooperatively mounted inside the U-shaped supporting blocks 51, and a material receiving group 53 is mounted between two adjacent U-shaped supporting blocks 51; Among them, the adjustment group 22 includes a mounting plate 221 slidably arranged between the two mounting platforms 21, threaded connections are arranged at both ends of the mounting plate 221 with threaded rods 222 whose lower end surfaces are rotatably connected to the two mounting platforms 21, belt pulleys are respectively fixedly arranged on the outer walls of the two threaded rods 222, and a flattening part 223 is also arranged on the lower end surface at the central position of the mounting plate 221; Among them, the auxiliary group 23 includes a rotating shaft 231 fixedly connected to the output shaft of an external motor, belt pulleys are also respectively fixedly arranged on the outer wall of the rotating shaft 231 corresponding to the positions of the belt pulleys on the two threaded rods 222 in the up and down direction, the two belt pulleys at the same height are connected by a transmission belt in a transmission manner, and a supporting part 232 cooperating with the flattening part 223 is fixedly arranged on the upper end surface of the rotating shaft 231.

[0023] The flattening part 223 includes a hexagonal platform 2231 rotatably arranged on the lower end surface of the mounting plate 221 through a bearing, flattening plates 2232 are fixedly arranged on the outer wall of the hexagonal platform 2231 along the circumferential direction through tension springs, and a flattening shaft 2233 is rotatably arranged at the bottom end of the flattening plates 2232.

[0024] The supporting member 232 includes an adjusting disc 2321 fixedly arranged on the upper end face of the rotating shaft 231. A supporting disc is rotatably connected upward at the central position of the adjusting disc 2321. A plurality of arc-shaped grooves are formed in the end face of the adjusting disc 2321 along the circumferential direction. A round rod is slidably arranged inside the arc-shaped groove. A T-shaped supporting plate 2322 at the same height as the supporting disc is fixedly arranged on the upper end face of the round rod. A connecting rod 2323 slidably connected with the supporting platform body 1 is fixedly arranged on the lower end face of the T-shaped supporting plate 2322. The lower end face of the round rod is fixedly connected with the connecting rod 2323 through a strip-shaped plate.

[0025] The supporting group 52 includes a rectangular supporting platform 521 slidably arranged inside the rectangular supporting block 51 through a spring. A T-shaped plate 522 is slidably arranged inside the rectangular supporting platform 521. A plurality of supporting groups are fixedly arranged on the upper end face of the T-shaped plate 522. Each supporting group includes three conical supporting rods 523. A plurality of through grooves are formed in the upper end face of the T-shaped plate 522 along the front-back direction and are staggered with the positions of the conical supporting rods 523.

[0026] Three clamping groups are slidably arranged inside the rectangular supporting platform 521 along the front-back direction. Each clamping group includes two clamping plates 5211 with conical grooves and clamping the corresponding conical supporting rods 523. The two clamping plates 5211 in the same group are connected through a spring. A plurality of collecting groups are further arranged inside the rectangular supporting platform 521. Each collecting group includes two square plates 5212 with a V-shaped position and through grooves formed in the end faces. The two square plates 5212 are respectively connected with the clamping plates 5211 through torsion springs.

[0027] The material containing group 53 includes a plurality of hinge rods 531 slidably arranged inside the supporting platform body 1 along the up-down direction. Two supporting plates 532 respectively fixedly connected with the corresponding rectangular supporting blocks 51 are hinged on the circumferential outer wall of the hinge rod 531 in a V shape. Two material receiving plates are placed in cooperation between the two supporting plates 532 and are connected through a torsion spring. A plurality of circular through grooves extending along the left-right direction are formed in the end faces of the supporting plates 532 and the material receiving plates. The side walls of the frontmost rectangular supporting block 51 and the rearmost rectangular supporting block 51 are respectively hinged with the supporting platform body 1 through two supporting plates 532 in a V shape.

[0028] The driving group 41 includes electric sliders slidably arranged inside the two sliding grooves. The upper ends of the electric sliders are fixedly connected with the supporting equipment body 3. Two L-shaped telescopic blocks 411 and a square plate 412 located between the two L-shaped telescopic blocks 411 are fixedly arranged on the lower end face of the electric slider. A cylindrical rod located inside the waist-shaped groove is rotatably connected to the end face of the square plate 412. A gear 413 is fixedly arranged inside the supporting platform body 1 and at the top of the cylindrical rod. Rack bars 414 meshing and driving with the gear 413 are fixedly arranged on the upper end faces of the horizontal sections of the two L-shaped telescopic blocks 411. Connecting pieces 415 are respectively arranged on the end faces of the two rack bars 414.

[0029] The connecting member 415 includes a connecting plate 4151 that slides in the vertical direction and has a sliding groove formed inside. There are two connecting plates 4151, which are distributed in the vertical direction inside the support platform body 1. The inner part of the upper connecting plate 4151 is respectively slidably connected to a plurality of loop-shaped bearing platforms 521 and the front side rack 414, and the inner part of the lower connecting plate 4151 is respectively slidably connected to a plurality of T-shaped plates 522 and the rear side rack 414.

[0030] The cooperation group 32 includes an annular ring 321 rotatably sleeved on the outer wall of the laser cutting head 31. A plurality of rectangular grooves are formed upward along the circumferential direction on the lower end surface of the annular ring 321. Inside the rectangular grooves, cooperation plates 323 with rollers 322 at the lower end surfaces are arranged through torsion springs. Stretch belts are connected between adjacent cooperation plates 323.

[0031] During specific implementation, the work of preventing deformation and flattening of the thin-walled sheet metal: During actual use, first, control the electric slider to drive the electromagnets on the support platform body 1 to move away from each other, and vacate a position for placing the thin-walled sheet metal. Due to the relatively thin thickness of the lightweight thin-walled sheet metal, it is impossible to avoid the phenomenon of the surface of the thin-walled sheet metal bulging or being uneven during the placement process. When the thin-walled sheet metal is placed on a plurality of T-shaped bearing plates 2322 by an external hoisting device, the plurality of T-shaped bearing plates 2322 can give an upward supporting force to the thin-walled sheet metal through the support of the connecting rods 2323, so that the sheet metal will not slide downward when placed. At this time, control the external motor to drive the rotating shaft 231 and the adjusting disc 2321 to rotate. During the rotation of the adjusting disc 2321, a plurality of arc-shaped grooves formed thereon drive a plurality of T-shaped bearing plates 2322 and the connecting rods 2323 to move away synchronously during the rotation by pushing against the round rods, and slide from the center position of the thin-walled sheet metal to the periphery, so as to expand the supporting area of the T-shaped bearing plates 2322 for the thin-walled sheet metal.

[0032] During the rotation of the rotating shaft 231, while a plurality of T-shaped bearing plates 2322 move away synchronously, the belt wheels and transmission belts arranged on the outer wall of the rotating shaft 231 drive the threaded rods 222 on both sides to rotate synchronously. The mounting plate 221 slides downward along the mounting table 21 under the rotation of the two threaded rods 222. During the sliding process, the flattening shaft 2233 first contacts the upper surface of the sheet metal, and the pressing work continues. The angle change between the flattening plate 2232, the flattening shaft 2233 and the upper surface of the thin-walled sheet metal is completed through the torsion spring arranged between the flattening plate 2232 and the hexagonal table 2231, and the bulging and uneven positions of the thin-walled sheet metal are rolled and pushed flat by the flattening shaft 2233.

[0033] The supporting member 232 is provided with a plurality of T-shaped supporting plates 2322 and connecting rods 2323. The plurality of T-shaped supporting plates 2322 and connecting rods 2323 are slidably arranged in the arc-shaped groove of the adjusting disc 2321 along the circumferential direction through round rods. When the rotating shaft 231 is driven by an external motor and drives the adjusting disc 2321 to rotate, the plurality of T-shaped supporting plates 2322 slide away from each other along the circumferential direction under the drive of the arc-shaped groove and the round rods, providing an average and stable supporting force for the thin-walled sheet metal while also expanding the supporting area of the thin-walled sheet metal. At the same time, during the sliding process of the T-shaped supporting plate 2322, the flattening plate 2232 drives the flattening shaft 2233 to move downward synchronously, and the flattening work of the thin-walled sheet metal is completed through the cooperation of the upper and lower directions, avoiding the problem of deformation caused by the uneven surface of the thin-walled sheet metal during the subsequent laser cutting process.

[0034] Laser cutting work of thin-walled sheet metal: After the thin-walled sheet metal completes the flattening work, the electromagnet on the support table body 1 is driven by the electric slider to move (before the thin-walled sheet metal is placed, a plurality of electromagnets on the support table body 1 move away from each other under the drive of the electric slider and roughly move to the positions of the corners of the thin-walled sheet metal). After the four electromagnets adjust their positions, they move to the four corners of the thin-walled sheet metal, and the thin-walled sheet metal is pressed and fixed by electromagnetic fixation to prevent it from retracting due to force. After the fixation is completed, the electric slider drives the thin-walled sheet metal to slide forward.

[0035] During the movement of the sheet metal, the electric slider arranged on the inner wall of the support table body 1 is controlled to drive the loop-shaped supporting block 51 to move and ensure that the distance between adjacent two loop-shaped supporting blocks 51 is the same (in the initial state, the distance between a plurality of loop-shaped supporting blocks 51 is small, and the included angle between the two support plates 532 arranged between adjacent two loop-shaped supporting blocks 51 is also small due to the distance between the two loop-shaped supporting blocks 51). The thin-walled sheet metal moves to the upper end surfaces of a plurality of loop-shaped supporting blocks 51 under the drive of the electric slider, and the loop-shaped supporting blocks 51 complete the supporting work for the lower surface of the sheet metal. A plurality of loop-shaped supporting blocks 51 with the same distance can provide a uniform supporting force during the laser cutting work of the sheet metal, and the plurality of loop-shaped supporting blocks 51 moving synchronously can continuously change the supporting position of the thin-walled sheet metal during the laser cutting process, avoiding the already cut sheet metal waste from folding downward due to gravity.

[0036] After the thin-walled sheet metal moves to the designated working position, the electric slider inside the slide 4 drives the gear 413, the rack 414 and the laser cutting head 31 to move synchronously, and during the movement, the laser cutting head 31 moves to just above the frontmost circular support block 51, and then the laser cutting head 31 is controlled to descend. During the descent, the laser cutting head 31 pushes the front rack 414 and the corresponding connecting plate 4151 downward, and the connecting plate 4151 pulls several circular support platforms 521 downward and away from the thin-walled sheet metal during the movement (in the initial state, the circular support platform 521 and the circular support block 51 are at the same height, The T-shaped plate 522 is lower than the circular support platform 521 and the circular support block 51. When the laser cutting head 31 moves downward, the positions of the circular support platform 521 and the T-shaped plate 522 change through the meshing of the two racks 414 and the gear 413. At this time, the conical support rod 523 provided on the T-shaped plate 522 moves upward and is in close contact with the lower surface of the sheet metal. During the movement, the conical support rod 523 pushes the square plate 5212 to both sides respectively, so that the two square plates 5212 push each other and the angle gradually decreases. Through the support conversion, it is possible to avoid the laser beam from damaging the circular support platform 521 during laser cutting). When the front rack 414 moves downward, it meshes with the gear 413 to rotate. When the gear 413 rotates, it meshes with the rear rack 414 and makes the rear rack 414 and the corresponding connecting plate 4151 move upward. During the upward movement, the connecting plate 4151 drives several T-shaped plates 522 to move upward.

[0037] Taking the circular support platform 521 inside any circular support block 51 as an example, when the circular support platform 521 moves downward, its lower end surface will push downward against the two top blocks inside the circular support block 51. Under the action of the torsion spring, the two top blocks gradually change from the initial horizontal position to an inclined position, ensuring that the circular support platform 521 will not separate from the circular support block 51. During the movement, a rectangular area will be generated between the circular support platform 521 and the lower surface of the sheet metal, through which the flames generated by subsequent laser cutting are isolated, preventing the flames from containing small metal chips from scratching the uncut area on the lower surface of the sheet metal during the bursting process.

[0038] When the conical support rod 523 is in contact with the lower surface of the sheet metal, the laser cutting head 31 is controlled to move downward, and the roller 322 contacts the upper surface of the sheet metal first. During the adjustment and continuous downward pressure of the annular ring 321, the positions of the several matching plates 323 and the roller 322 change and they move away synchronously along the surface of the sheet metal. At the same time, the several matching plates 323 form a bowl-shaped area with the opening facing downward by stretching the telescopic belt during the moving away process. The bowl-shaped area greatly reduces the bursting of sparks from the cutting work on the upper surface of the sheet metal, effectively preventing the sparks from containing fine metal chips scratching the uncut area on the upper surface of the sheet metal.

[0039] The matching plate 323 is arranged inside the rectangular groove of the annular ring 321 through a torsion spring. When the laser cutting head 31 is working, the matching plate 323 can not only protect the upper surface of the thin-walled sheet metal from damage, but also can further press down and smooth the cutting position during the process of the matching plate 323 driving the roller 322 to move downward and change position, thereby improving the laser cutting accuracy. After the cutting is completed, when a small amount of sheet metal samples cannot be separated from the sheet metal due to the small connection points, the matching plate 323 drives the roller 322 to move upward, and the sheet metal samples that have been cut are rolled to separate them from the sheet metal, thereby improving the cutting efficiency of the sheet metal samples.

[0040] It should be noted that when the laser cutting head 31 switches the working area and moves upward, the circular support platform 521 and the T-shaped plate 522 will move in the opposite direction under the action of the gear 413 and the rack 414, and the outer wall of the conical support rod 523 will be scraped and cleaned by the clamping plate 5211 set on the circular support platform 521, so as to avoid the accumulation and solidification of metal chips on the outer wall of the conical support rod 523 under long-term work, causing unstable support for thin-walled sheet metal.

[0041] Most of the scraped metal chips roll down along the inclined direction of the square plate 5212 and fall into the inside of the support table body 1 along the through groove, and a small amount of metal chips will remain on the upper surface of the square plate 5212. At this time, when the laser cutting head 31 moves downward, the circular support platform 521 and the T-shaped plate 522 move in opposite directions, and the two square plates 5212 push each other and the angle gradually decreases (in the initial state, the non-connected sections of the two square plates 5212 contact each other, and the angle between the two square plates 5212 is large), so that the metal chips remaining on the upper surface of the square plate 5212 slide into the through groove.

[0042] Collection work after sheet metal cutting: After the cutting of the corresponding circular support block 51 of the sheet metal is completed, the external blowing equipment is preferentially connected to the support plate 532, and the gas is transported upward through the circular through grooves provided on the support plate 532 and the receiving plate, and then the electric slider is controlled to drive several circular support blocks 51 to move and change the distance between two adjacent circular support blocks 51. When two adjacent circular support blocks 51 move away from each other, their side walls will pull the corresponding support plate 532. When the angle of the two support plates 532 hinged on the hinged rod 531 is stretched to the maximum, the hinged rod 531 will be driven to slide upward along the inner wall of the support platform body 1, thereby shortening the distance between the receiving plate and the sheet metal sample. At the same time, due to the movement of the circular support block 51, the sheet metal sample without support will naturally fall to the receiving plate below due to gravity.

[0043] It is worth emphasizing that the thin-walled sheet metal laser cutting anti-deformation device also has the following advantages: Advantage 1: During the placement of the thin-walled sheet metal, due to its thin thickness, it is inevitable that bulges or unevenness will appear on the surface. The synchronous movement away of several T-shaped support plates 2322 effectively eliminates the surface unevenness of the thin-walled sheet metal during placement while expanding the support area of the thin-walled sheet metal, and cooperates with the downward flattening work of the flattening shaft 2233. After the flattening work, the electromagnetic fixation of the electromagnets at the four corners ensures that the thin-walled sheet metal will not retract during the subsequent processing, significantly reducing the deformation of the thin-walled sheet metal during placement and ensuring the subsequent laser cutting accuracy.

[0044] Advantage 2: The sliding connection is adopted between the loop-shaped bearing platform 521 and the T-shaped plate 522. During the laser cutting work, the support of the lower surface of the thin-walled sheet metal is switched by the alternating sliding of the loop-shaped bearing platform 521 and the T-shaped plate 522, avoiding damage to the loop-shaped bearing platform 521 caused by direct irradiation of the laser beam. At the same time, during the movement of the loop-shaped bearing platform 521, it downwardly pushes two top plates inside the loop-shaped supporting block 51 to deform and generate a rectangular area with the lower surface of the thin-walled sheet metal. Through this area, the heat dissipation effect of the laser cutting work is improved, avoiding excessive heat in the cutting area and causing too high heat influence on the cut part of the sheet metal sample.

[0045] Advantage 3: During the cutting work of the sheet metal by the laser cutting head 31, several matching plates 323 change their positions and move away synchronously along the surface of the sheet metal. During the moving away process, several matching plates 323 enclose a bowl-shaped area with an opening facing down by stretching the elastic bands. Through this bowl-shaped area, the ejection of sparks during the cutting work on the upper surface of the sheet metal is greatly reduced, effectively avoiding the scratches on the uncut area of the upper surface of the sheet metal caused by the fine metal chips in the sparks. The angular offset between the matching plate 323 and the roller 322 further performs the downward flattening work on the cutting position of the sheet metal, improving the laser cutting accuracy. After the cutting is completed, when a small amount of sheet metal samples cannot be separated from the sheet metal due to small connecting points, the matching plate 323 drives the roller 322 to move upward, rolling the cut sheet metal samples to enable them to be separated from the sheet metal.

[0046] Advantage 4: During the downward movement of the loop-shaped bearing platform 521, a certain rectangular interval is generated with the lower surface of the sheet metal, which can not only improve the heat dissipation effect during the cutting work, but also effectively isolate the sparks generated during the laser cutting work through this rectangular area, enabling the metal chips to enter the rectangular area and fall on the smooth surface of the loop-shaped bearing platform 521. Through the isolation of the rectangular area, it effectively prevents the metal chips in the sparks from scratching the lower surface of the sheet metal, further improving the smoothness and accuracy of the cutting surface.

[0047] Advantage Five: During the alternating movement of the loop-shaped bearing platform 521 and the conical support rod 523, the metal chips adhering to the outer wall of the conical support rod 523 during the cutting process are effectively scraped off through the cooperation between the conical groove formed on the clamping plate 5211 and the outer wall of the conical support rod 523, avoiding the situation of unstable sheet metal support caused by the accumulation of metal chips. When the clamping plate 5211 is pushed, the two adjacent square plates 5212 push against each other and the included angle gradually decreases, causing the metal chips remaining on the upper surface of the square plate 5212 to slide into the through groove, thus completing the collection of metal chips and avoiding long-term accumulation.

[0048] Advantage Six: During the laser cutting head 31 cutting the sheet metal, the gas ejected upward is used to cool the cut sheet metal, effectively reducing the heat emission during the cutting process and accelerating the cooling of the sheet metal sample. Due to the movement of the loop-shaped supporting block 51, the unsupported sheet metal sample will naturally fall to the lower material receiving plate under the action of gravity. The gas can not only accelerate the cooling of the sheet metal sample, but also slow down the falling speed of the sheet metal sample, thereby reducing the probability of damage to the sheet metal sample.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thin-walled sheet metal laser cutting anti-deformation device based on an electromagnetic assisted structure, characterized in that: include: Support platform body (1); An anti-deformation mechanism (2), the anti-deformation mechanism (2) comprising two mounting platforms (21) fixedly arranged on the left and right side walls of the support platform body (1), an adjustment group (22) being slidably arranged between the two mounting platforms (21), and an auxiliary group (23) being arranged inside the support platform body (1); A supporting device body (3), a laser cutting head (31) being slidably mounted on the supporting device body (3), and a matching group (32) being mounted on the laser cutting head (31); Slide tables (4), two slide tables (4) are provided and fixedly mounted on the left and right side walls of the support platform body (1) at the rear, and both slide tables (4) are provided with slide grooves, and a driving group (41) is provided inside the slide grooves; A support portion (5), the support portion (5) comprising a plurality of circular support blocks (51) slidably arranged inside the support platform body (1) via an electric slider, a support group (52) being cooperatively installed inside the circular support block (51), and a material holding group (53) being installed between two adjacent circular support blocks (51); The adjustment group (22) comprises a mounting plate (221) slidably arranged between the two mounting platforms (21), the two ends of the mounting plate (221) are threadedly connected with threaded rods (222) whose lower end surfaces are rotatably connected to the two mounting platforms (21), and a smoothing member (223) is also arranged at the lower end surface at the center of the mounting plate (221); The auxiliary group (23) comprises a rotating shaft (231) fixedly connected to the output shaft of the external motor, and a supporting member (232) cooperating with the smoothing member (223) is fixedly provided on the upper end surface of the rotating shaft (231).

2. According to claim 1, a thin-walled sheet metal laser cutting anti-deformation device based on an electromagnetic assisted structure is characterized in that: The smoothing member (223) comprises a hexagonal platform (2231) rotatably arranged on the lower end surface of the mounting plate (221) via a bearing, a smoothing plate (2232) is fixedly arranged on the outer wall of the hexagonal platform (2231) along the circumferential direction via a tension spring, and a smoothing shaft (2233) is rotatably arranged at the bottom end of the smoothing plate (2232).

3. According to claim 1, a thin-walled sheet metal laser cutting anti-deformation device based on an electromagnetic assisted structure is characterized in that: The supporting member (232) comprises an adjusting disk (2321) fixedly arranged on the upper end surface of the rotating shaft (231); the end surface of the adjusting disk (2321) is provided with a plurality of arc-shaped grooves along the circumferential direction; a round rod is slidably arranged inside the arc-shaped groove; a T-shaped supporting plate (2322) is fixedly arranged on the upper end surface of the round rod; a connecting rod (2323) slidably connected to the supporting platform body (1) is fixedly arranged on the lower end surface of the T-shaped supporting plate (2322); and the lower end surface of the round rod is fixedly connected to the connecting rod (2323) via a strip plate.

4. The thin-walled sheet metal laser cutting anti-deformation device based on electromagnetic assisted structure according to claim 1, characterized in that: The support group (52) comprises a circular support platform (521) slidably arranged inside the circular support block (51) via a spring, a T-shaped plate (522) is slidably arranged inside the circular support platform (521), and a plurality of support groups are fixedly arranged on the upper end surface of the T-shaped plate (522), each support group comprising three conical support rods (523).

5. The thin-walled sheet metal laser cutting anti-deformation device based on electromagnetic assisted structure according to claim 4, characterized in that: The circular support platform (521) is provided with three engaging groups inside for sliding along the front-to-back direction, each engaging group comprising two engaging plates (5211) with conical grooves and engaging corresponding conical support rods (523), and the two engaging plates (5211) in the same group are connected via a spring. The circular support platform (521) is also provided with a plurality of collecting groups inside, each collecting group comprising two square plates (5212) with V-shaped positions and through grooves on the end faces, and the two square plates (5212) are respectively connected to the engaging plates (5211) via torsion springs.

6. The thin-walled sheet metal laser cutting anti-deformation device based on electromagnetic assisted structure according to claim 1, characterized in that: The material holding group (53) comprises a plurality of hinged rods (531) arranged inside the support platform body (1) and sliding in the up-down direction. The circumferential outer wall of the hinged rod (531) is hinged in a V-shape to two support plates (532) respectively fixedly connected to the corresponding circular support blocks (51). Two material receiving plates are placed between the two support plates (532). The two material receiving plates are connected by a torsion spring. The end surfaces of the support plates (532) and the material receiving plates are both provided with a plurality of circular through grooves extending in the left-right direction.

7. The thin-walled sheet metal laser cutting anti-deformation device based on electromagnetic assisted structure according to claim 1, characterized in that: The driving group (41) comprises an electric slider slidably arranged inside two sliding grooves, the upper end of the electric slider is fixedly connected to the supporting device body (3), the lower end surface of the electric slider is fixedly provided with two L-shaped telescopic blocks (411) and a square plate (412) located between the two L-shaped telescopic blocks (411), the end surface of the square plate (412) is rotatably connected to a cylindrical rod that passes through the supporting platform body (1), a gear (413) is fixedly arranged inside the supporting platform body (1) and at the top end of the cylindrical rod, the upper end surfaces of the horizontal sections of the two L-shaped telescopic blocks (411) are fixedly provided with racks (414) that mesh with the gears (413), and the end surfaces of the two racks (414) are respectively provided with connecting pieces (415).

8. The thin-walled sheet metal laser cutting anti-deformation device based on electromagnetic assisted structure according to claim 7, characterized in that: The connecting member (415) comprises a connecting plate (4151) which slides in the up-down direction and has a sliding groove therein. Two connecting plates (4151) are provided and are distributed in the up-down direction inside the support platform body (1). The upper connecting plate (4151) is slidably connected to a plurality of circular support platforms (521) and a front rack (414) respectively, and the lower connecting plate (4151) is slidably connected to a plurality of T-shaped plates (522) and a rear rack (414) respectively.

9. The thin-walled sheet metal laser cutting anti-deformation device based on electromagnetic assisted structure according to claim 1, characterized in that: The mating group (32) comprises an annular ring (321) rotatably sleeved on the outer wall of the laser cutting head (31); a plurality of rectangular grooves are provided on the lower end surface of the annular ring (321) upwardly along the circumferential direction; mating plates (323) whose lower end surfaces are rollers (322) are provided inside the rectangular grooves via torsion springs; and telescopic belts are connected between adjacent mating plates (323).

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