A laser cutting machine for sheet metal processing

Abstract

The application discloses a laser cutting machine for sheet metal machining, and relates to the technical field of laser cutting, comprising a workbench, wherein a laser cutting device capable of cutting sheet metal parts is arranged above the workbench. The laser cutting machine for sheet metal machining can hold the sheet metal part by driving the conveying roller to lift upward, and when the conveying roller lifts the sheet metal part upward, the thick-toothed disc and the flat-toothed disc will be engaged with each other to make the sawtooth grid a and the sawtooth grid b change from the vertical arrangement state to the horizontal arrangement state and be engaged with each other in a staggered manner. The iron slag removal operation can be performed on the horizontally engaged sawtooth grid a and the sawtooth grid b by using the sawtooth grid a and the sawtooth grid b engaged with each other and the horizontal moving mechanism to pull the slag removal mechanism, so that the laser cutting machine can timely and quickly remove the slag of the grid supporting the sheet metal part without affecting the cutting process.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting machine for sheet metal processing. Background Technology

[0002] Laser cutting technology is widely used in sheet metal processing, automobile manufacturing, aerospace, electronics, and machinery manufacturing. The laser cutting stage, as a crucial component of the laser cutting system, directly affects the precision, efficiency, and quality of the cutting process. Laser cutting is a processing technology that uses a high-power laser beam to irradiate the surface of a material, rapidly heating it to its melting or boiling point, and then using a gas stream to blow away the molten or vaporized material, thus achieving the cutting process.

[0003] When cutting sheet metal parts, laser cutting produces metal powder and oxide residue. The high temperature of these powders and residues causes them to adhere to the bottom grid assembly supporting the sheet metal parts, forming iron slag. The common method of slag removal is to manually remove the slag periodically after the laser cutting machine stops processing, based on the amount of iron slag adhered. This operation not only causes the laser cutting machine to stop, delaying the subsequent cutting process, but also fails to quickly remove the residue that has accumulated over a long period of time. At the same time, it is difficult to clean the residue on the edges of the grid teeth and grooves of the grid assembly supporting the sheet metal parts by manually cleaning them. Summary of the Invention

[0004] The purpose of this invention is to provide a laser cutting machine for sheet metal processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting machine for sheet metal processing, comprising a worktable, wherein a laser cutter capable of laser cutting sheet metal parts is disposed above the worktable;

[0006] Two limiting chambers are arranged in parallel on the workbench. Conveying rollers for translating and conveying sheet metal parts are arranged equidistantly between the two limiting chambers. A drive mechanism for driving the conveying rollers to move up and down in height is provided inside the limiting chamber.

[0007] The conveying roller is symmetrically provided with support components for horizontally supporting sheet metal parts on both sides. The support components in the same group include sawtooth grids a and b vertically arranged between two limiting chambers. The upward-lifting conveying roller drives sawtooth grids a and b from a vertical position to a horizontal position. The sawtooth grids a and b, which are reversed, are laterally misaligned, so that the interlocking sawtooth grids a and b can squeeze out the attached iron slag. The sawtooth grids a and b are provided with a slag removal mechanism in a misaligned manner.

[0008] The two limiting chambers are reinforced by reinforcing ribs welded vertically to each other. A transverse movement mechanism is provided on one side of the reinforcing ribs. The transverse movement mechanism includes a snap-fit ​​frame that overlaps the two reinforcing ribs in parallel. By pushing and pulling the snap-fit ​​frame through the transverse movement mechanism, the snap-fit ​​frame drives the slag removal mechanism to move horizontally along the serrated grids a and b that are evenly distributed.

[0009] Preferably, the top of the workbench is provided with forward moving modules on both sides, and the forward moving modules are provided with lateral moving modules that can move forward and backward. The lateral moving modules are provided with longitudinal moving modules that drive the laser cutter to adjust the height difference with the sheet metal part.

[0010] Preferably, there is at least one set of support components located on one side of the conveyor roller;

[0011] The sawtooth grille a and sawtooth grille b are provided with convex teeth and grooves of matching size, and the sawtooth grille a and sawtooth grille b support the sheet metal parts through the convex teeth.

[0012] Preferably, the two ends of the sawtooth grid a and the sawtooth grid b are fixed with rotating shafts, and the rotating shafts of the sawtooth grid a and the sawtooth grid b are fixed with movable pins, and the movable pins on the adjacent rotating shafts of the sawtooth grid a and the sawtooth grid b are staggered by 90° to each other.

[0013] Flat toothed discs and thick toothed discs are fixed on the rotating shafts at both ends of the sawtooth grid a and sawtooth grid b. The flat toothed discs and thick toothed discs on the rotating shaft of sawtooth grid a mesh with the thick toothed discs and flat toothed discs on the rotating shaft of sawtooth grid b, respectively. The meshing thick toothed discs and flat toothed discs can cause sawtooth grid a and sawtooth grid b to rotate in opposite directions.

[0014] Preferably, the inner wall of the limiting chamber is inlaid with two sets of guide sleeves that are respectively inserted into the rotating shaft of the sawtooth grid a and the rotating shaft of the sawtooth grid b.

[0015] The inner walls of the two guide sleeves on the same side of the shaft for inserting the rotating shafts of sawtooth grid a and sawtooth grid b are provided with spiral grooves that are offset in the same direction of rotation and are connected to the moving pin. The moving pin that slides along the spiral groove can drive the sawtooth grids a and b, which are in opposite directions, to move laterally and offset from each other.

[0016] Preferably, the driving mechanism includes cylinders spaced apart inside the limiting chamber, a limiting frame is fixed on the cylinder, and a sliding sleeve that is longitudinally pushed and pulled by the cylinder output rod is slidable within the limiting frame.

[0017] The inside of the sliding sleeve is connected to the end of the conveying roller through a bearing. The end of the conveying roller that extends through the sliding sleeve is linked to the transmission belt through a pulley. One of the transmission belts is connected to a conveying motor that can switch the rotation direction.

[0018] Several equally spaced conveyor rollers are movably connected by a connecting rod, so that the equally spaced conveyor rollers maintain the same horizontal height, and the conveyor motor is installed at one end of the connecting rod.

[0019] Preferably, a rack extending downward and meshing with a thick toothed disc is fixed on one side of the connecting rod. The rack is driven to mesh with the thick toothed disc by the longitudinally moving connecting rod, so that the adjacent flat toothed discs and thick toothed discs between the sawtooth grids a and b are reversed.

[0020] Preferably, the slag removal mechanism includes a U-shaped fixed shell sleeved on the sawtooth grid a and sawtooth grid b. A motor is installed at one end of the fixed shell, and the output end of the motor is connected to a drive gear disk. Two sets of gears are arranged inside the fixed shell. The transmission start ends of the two sets of gears mesh with the drive gear disk, and the transmission ends of the two sets of gears are connected to parallel slag removal disks. The two sets of gears driven by the drive gear disk can make the two slag removal disks reverse each other.

[0021] The inside of the slag removal disc is connected to a scraper via a tension spring. The rotating slag removal disc can overcome the traction force of the tension spring on the scraper through centrifugal force, causing the scraper to extend out along the edge of the slag removal disc.

[0022] Preferably, guide rails are fixed on both sides of the sawtooth grid a and sawtooth grid b, and damping guide wheels that engage and abut against the guide rails are connected to both sides of the inner wall of the U-shaped fixing shell, and a card seat is fixed on one side of the outer wall of the fixing shell.

[0023] The ends of the two guide rails located in the middle of the sawtooth grid a and sawtooth grid b are curved sections that are far apart from each other.

[0024] Preferably, the transverse movement mechanism includes a lead screw connected to the limiting chamber via a bearing seat. The surface of the lead screw is provided with two sections of threads with opposite directions of rotation. Moving blocks are threaded to both sides of the lead screw, and a drive motor for driving the lead screw to rotate is installed on one of the limiting chambers.

[0025] A traction arm is movably connected between the movable block and the snap-fit ​​frame. A stop bar is fixed on the side of the movable block near the traction arm, and a spring pin is telescopically connected to the surface of the movable block near the stop bar.

[0026] The sides of both ends of the snap-fit ​​frame are fixed with protruding snap-fit ​​blocks. The surface of the limiting chamber near the two ends of the reinforcing rib is longitudinally provided with a reserved cavity for longitudinal movement of the snap-fit ​​frame. The reserved cavity is formed by the bottom limiting port and the top insertion port. The protruding snap-fit ​​blocks on the snap-fit ​​frame are matched and connected with the limiting port.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: The laser cutting machine for sheet metal processing can support the sheet metal parts by driving the conveyor roller to lift it upward through the drive mechanism. When the conveyor roller lifts the sheet metal parts upward, the thick toothed disc and the flat toothed disc will mesh with each other, thereby changing the sawtooth grids a and b from a vertically placed state to a horizontally placed state for staggered interlocking. By utilizing the interlocking sawtooth grids a and b and the traction of the slag removal mechanism by the transverse movement mechanism, the horizontally interlocked sawtooth grids a and b can be used to remove slag, ensuring that the laser cutting machine can quickly remove slag from the grids supporting the sheet metal parts in a timely manner without delaying the cutting process. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the laser cutting machine of the present invention;

[0029] Figure 2 This is a three-dimensional structural diagram of the docking of the limiting chamber and the support component of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the linkage between the support components, drive mechanism, conveying roller and slag removal mechanism of the present invention;

[0031] Figure 4 This is a three-dimensional structural diagram of the linkage between the support components, drive mechanism, conveying roller, lateral movement mechanism and slag removal mechanism of the present invention;

[0032] Figure 5 This is a three-dimensional structural diagram of the docking of the limiting chamber and the transverse transfer machine of the present invention;

[0033] Figure 6 This is a schematic diagram of the first three-dimensional structure of the linkage between the support component, the transverse movement mechanism and the slag removal mechanism of the present invention.

[0034] Figure 7 This is a schematic diagram of the first three-dimensional cross-sectional structure of the linkage between the support component, the transverse movement mechanism and the slag removal mechanism of the present invention.

[0035] Figure 8 This is a schematic diagram of the second three-dimensional structure of the linkage between the support component, the transverse movement mechanism and the slag removal mechanism of the present invention.

[0036] Figure 9 This is a schematic diagram of the first three-dimensional cross-sectional structure of the support component of the present invention;

[0037] Figure 10 This is a schematic diagram of the second three-dimensional cross-sectional structure of the support component of the present invention;

[0038] Figure 11 This is a schematic diagram of the internal structure of the support component in which the movable pin engages with the spiral groove when the sawtooth grid a and sawtooth grid b are rotated to a horizontal position according to the present invention.

[0039] Figure 12 For the present invention Figure 5 A magnified view of the structure at point A in the middle;

[0040] Figure 13 This is a three-dimensional structural diagram of the linkage between the lead screw, the moving block, and the traction arm of the present invention;

[0041] Figure 14 This is a three-dimensional structural diagram of the slag removal mechanism of the present invention;

[0042] Figure 15 This is a three-dimensional exploded view of the slag removal mechanism of the present invention;

[0043] Figure 16 This is a three-dimensional cross-sectional view of the slag removal disc of the present invention.

[0044] In the diagram: 1. Worktable; 101. Forward moving module; 102. Lateral moving module; 103. Laser cutter; 2. Limiting chamber; 3. Reinforcing rib; 4. Support assembly; 401. Guide sleeve; 4011. Spiral groove; 402. Serrated grid a; 403. Serrated grid b; 404. Flat toothed disc; 405. Thick toothed disc; 406. Guide rail; 407. Moving pin; 5. Drive mechanism; 501. Cylinder; 502. Limiting frame; 503, sliding sleeve; 504, connecting rod; 505, rack; 6, conveying roller; 7, lateral movement mechanism; 701, lead screw; 702, drive motor; 703, moving block; 704, traction arm; 705, snap-fit ​​frame; 8, slag removal mechanism; 801, fixed shell; 802, motor; 803, gear set; 804, slag removal disc; 8041, tension spring; 8042, scraper; 805, damping guide wheel; 806, clamping seat. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figure 1 The present invention provides a technical solution: a laser cutting machine for sheet metal processing, including a worktable 1, a laser cutter 103 for laser cutting sheet metal parts is arranged above the worktable 1, forward moving modules 101 are arranged on both sides of the top of the worktable 1, and a lateral moving module 102 that can move forward and backward is arranged on the forward moving module 101. A longitudinal moving module is arranged on the lateral moving module 102 to drive the laser cutter 103 to adjust the height difference with the sheet metal parts. A material collection groove is arranged at the bottom inside the worktable 1.

[0047] In this embodiment, a longitudinal moving module that can adjust the height difference between the laser cutter 103 and the sheet metal part is used to align the laser cutter 103 with the sheet metal part. Under program control, the forward moving module 101 and the lateral moving module 102 can drive the laser cutter 103 to cut the sheet metal part into a preset shape. At the same time, the longitudinal moving module that can adjust the height of the laser cutter 103 can drive the laser cutter 103 to avoid protruding parts on the sheet metal part, ensuring that the laser cutter 103 has a protective function during laser cutting. At the same time, when the cutting is completed, the laser cutter 103 is raised by the longitudinal moving module, which can stop the laser cutter 103 from cutting the sheet metal part. When the waste generated by laser cutting falls, it will be collected and discharged along the material collection groove at the bottom of the worktable 1. This is the prior art. For the specific principle of controlling the laser cutter 103 to cut the sheet metal part, please refer to Chinese Patent No. CN214264324U.

[0048] Please see Figures 1-8 Two limiting chambers 2 are arranged in parallel on the workbench 1. Conveying rollers 6 for translating and conveying sheet metal parts are arranged at equal intervals between the two limiting chambers 2. A drive mechanism 5 is provided inside the limiting chamber 2 to drive the conveying rollers 6 to lift and lower in height.

[0049] The conveyor roller 6 is symmetrically provided with support components 4 for horizontally supporting sheet metal parts on both sides. There is no less than one set of support components 4 on one side of the conveyor roller 6, and the two limiting chambers 2 are reinforced by reinforcing ribs 3 welded vertically to each other.

[0050] The same support component 4 includes a serrated grille a402 and a serrated grille b403 vertically arranged between the two limiting chambers 2. The serrated grille a402 and the serrated grille b403 are provided with convex teeth and grooves of matching size. The serrated grille a402 and the serrated grille b403 support the sheet metal parts through the convex teeth.

[0051] In this embodiment, equidistant conveying rollers 6 are arranged between two limiting chambers 2, and several support components 4 are symmetrically distributed on both sides of the conveying rollers 6. When the equidistantly distributed conveying rollers 6 lift the sheet metal parts and detach them from the support components 4, the sheet metal parts can be easily conveyed. When the sawtooth grids a402 and b403 of the several support components 4 are vertically arranged and the protruding teeth are higher than the conveying rollers 6, the sheet metal parts can be supported. When the laser cutter 103 cuts the sheet metal parts, the cut sheet metal waste will fall down along the gap between the sawtooth grids a402 and b403.

[0052] Please see Figures 6-11The two ends of the sawtooth grid a402 and the sawtooth grid b403 are fixed with rotating shafts, and the rotating shafts of the sawtooth grid a402 and the sawtooth grid b403 are fixed with moving pins 407. The moving pins 407 on the adjacent rotating shafts of the sawtooth grid a402 and the sawtooth grid b403 are staggered by 90° to each other.

[0053] Flat toothed discs 404 and thick toothed discs 405 are fixed on the rotating shafts at both ends of the sawtooth grids a402 and b403. The flat toothed discs 404 and thick toothed discs 405 on the rotating shaft of the sawtooth grid a402 are respectively meshed with the thick toothed discs 405 and flat toothed discs 404 on the rotating shaft of the sawtooth grid b403. The meshing thick toothed discs 405 and flat toothed discs 404 can cause the sawtooth grids a402 and b403 to rotate in opposite directions.

[0054] In this embodiment, when adjacent thick toothed discs 405 and flat toothed discs 404 mesh with each other, the upward-lifting conveyor roller 6 drives the sawtooth grids a402 and b403 from a vertical position to a horizontal position. Conversely, the downward-falling conveyor roller 6 drives the sawtooth grids a402 and b403 from a horizontal position to a vertical position.

[0055] Please see Figure 3 , Figure 4 , Figures 6-11 The inner wall of the limiting chamber 2 is inlaid with two sets of guide sleeves 401 that are respectively inserted into the rotating shafts of the sawtooth grid a402 and the sawtooth grid b403. The inner walls of the two guide sleeves 401 on the same side of the sawtooth grid a402 and the sawtooth grid b403 are provided with spiral grooves 4011 that are offset in the same direction of rotation and are connected to the moving pin 407. The moving pin 407, which slides along the spiral groove 4011, can drive the sawtooth grids a402 and b403, which are in opposite directions, to move laterally and offset from each other.

[0056] In this embodiment, the meshing of the thick-toothed disc 405 and the flat-toothed disc 404 causes the adjacent rotation axes of the serrated grid a402 and serrated grid b403 to rotate in opposite directions. The moving pin 407 on the rotation axis moves along the spiral groove 4011 within the guide sleeve 401. Since the spiral grooves 4011 within the two adjacent guide sleeves 401 are staggered in the same direction of rotation, when the serrated grid a402 and serrated grid b403 change from a vertical to a horizontal position, the protrusions on the serrated grid a402 and serrated grid b403... The teeth and grooves will be misaligned, eventually causing the convex teeth of the sawtooth grid a402 to engage with the groove of the sawtooth grid b403, and the groove of the sawtooth grid a402 to engage with the convex teeth of the sawtooth grid b403. By using the mutually reversible sawtooth grids a402 and b403 to create lateral misalignment, the interlocking sawtooth grids a402 and b403 can squeeze out the attached iron slag, preventing the iron slag from accumulating on the edges of the convex teeth and grooves, and ensuring that the cleaning of sawtooth grids a402 and b403 is more thorough.

[0057] It should be noted that when the sawtooth grids a402 and b403 change from a horizontal to a vertical position, the movable pin 407 moves in the opposite direction along the spiral groove 4011, which can cause the sawtooth grids a402 and b403 to be offset in the opposite direction, and finally make the convex teeth and grooves of the sawtooth grids a402 and b403 aligned with each other.

[0058] When the sawtooth grilles a402 and b403 are reversed and change from a vertical to a horizontal position, the thick toothed disc 405 will move away from the guide sleeve 401 and the flat toothed disc 404 will move closer to the guide sleeve 401. When the sawtooth grilles a402 and b403 are reversed and change from a horizontal to a vertical position, the thick toothed disc 405 will move closer to the guide sleeve 401 and the flat toothed disc 404 will move away from the guide sleeve 401. In both states, the flat toothed disc 404 and the thick toothed disc 405 will not disengage.

[0059] Please see Figures 2-4 The drive mechanism 5 includes cylinders 501 spaced apart inside the limiting chamber 2. A limiting frame 502 is fixed on the cylinder 501, and a sliding sleeve 503 that is longitudinally pushed and pulled by the output rod of the cylinder 501 slides longitudinally inside the limiting frame 502. The inside of the sliding sleeve 503 is connected to the end of the conveying roller 6 through a bearing. The end of the conveying roller 6 that extends through the sliding sleeve 503 is linked to the transmission belt through a pulley. One of the transmission belts is connected to a conveying motor that can switch the rotation direction.

[0060] Several equally spaced conveyor rollers 6 are movably connected by a connecting rod 504, so that the equally spaced conveyor rollers 6 maintain the same horizontal height, and the conveyor motor is installed at one end of the connecting rod 504.

[0061] In this embodiment, the cylinder 501 pushes and pulls the sliding sleeve 503 to move up and down along the limiting frame 502, so that the sliding sleeve 503 can drive the conveying roller 6 to adjust its height. When the conveying motor is started, it can drive the pulley and the transmission belt to rotate, so that the equidistantly distributed conveying rollers 6 can rotate at the same time, thereby driving the conveying rollers 6 to support the sheet metal parts for conveying.

[0062] Please see Figures 2-4 and Figures 6-11 A rack 505 is fixed on one side of the connecting rod 504, extending downward and meshing with the thick toothed disk 405. The longitudinally moving connecting rod 504 drives the rack 505 to mesh with the thick toothed disk 405, so that the adjacent flat toothed disk 404 and thick toothed disk 405 between the sawtooth grid a402 and the sawtooth grid b403 are reversed.

[0063] In this embodiment, when the cylinder 501 pushes the conveying roller 6 to raise its height, the connecting rod 504, which follows the raising height, will drive the rack 505 to mesh with the thick toothed disk 405 in the forward direction, thereby causing the thick toothed disk 405 to rotate in the forward direction. Furthermore, by utilizing the meshing of the adjacent thick toothed disk 405 with the flat toothed disk 404, the sawtooth grid a402 and the sawtooth grid b403 can be driven to deflect at opposite angles, causing the sawtooth grid a402 and the sawtooth grid b403 to deflect from a vertically placed state to a horizontally placed state.

[0064] Conversely, when the cylinder 501 pulls the conveyor roller 6 to descend, the connecting rod 504, which follows the descent, will drive the rack 505 to mesh with the thick toothed disc 405 in the opposite direction, thereby causing the thick toothed disc 405 to rotate in the opposite direction. By using the meshing of the adjacent thick toothed disc 405 with the flat toothed disc 404, the sawtooth grid a402 and sawtooth grid b403 can be driven to deflect from the horizontal position to the vertical position.

[0065] Please see Figures 1-4 , Figures 6-8 , Figure 14 and Figure 15A slag removal mechanism 8 is offsetly arranged on sawtooth grids a402 and b403. The slag removal mechanism 8 includes a U-shaped fixed shell 801 sleeved on sawtooth grids a402 and b403. A motor 802 is installed at one end of the fixed shell 801. The output end of the motor 802 is connected to a drive gear plate. Two sets of gears 803 are arranged inside the fixed shell 801. The transmission start ends of the two sets of gears 803 mesh with the drive gear plate. The transmission ends of the two sets of gears 803 are connected to parallel slag removal discs 804. The two sets of gears 803 driven by the drive gear plate can make the two slag removal discs 804 reverse each other.

[0066] In this embodiment, by starting the motor 802 at one end of the fixed housing 801, the active gear disc inside the fixed housing 801 can drive the two sets of gears 803 to rotate in opposite directions. As a result, the two sets of gears 803 will drive the slag removal disc 804 at the end of the transmission to rotate in opposite directions. At this time, the rotating slag removal disc 804 will remove slag from both sides of the serrated grid a402 and serrated grid b403.

[0067] Please see Figures 14-16 Inside the slag removal disc 804, a scraper 8042 is connected via a tension spring 8041. The rotating slag removal disc 804 can overcome the traction force of the tension spring 8041 on the scraper 8042 through centrifugal force, causing the scraper 8042 to extend out along the edge of the slag removal disc 804.

[0068] In this embodiment, when the slag removal disc 804 is rotating, the centrifugal force generated by the rotation of the slag removal disc 804 can move the scraper 8042 to the outer edge. At the same time, the tension spring 8041 pulls the scraper 8042, thereby preventing the scraper 8042 from being thrown out and detached from the slag removal disc 804. The rotating slag removal disc 804 and the scraper 8042 extending along the edge of the slag removal disc 804 can remove the iron slag attached to the surface of the serrated grid a402 and serrated grid b403. At the same time, the scraper 8042 extending by the rotation centrifugal force can increase the slag removal coverage of the slag removal mechanism 8.

[0069] It is important to note that when the slag removal mechanism 8 is rotating to remove iron slag, the slag removal disc 804 uses the rotating impact force of its edge to cut the iron slag, and then the rotating scraper 8042 uses the edge of the slag removal disc 804 to generate a horizontal impact force. The increased slag removal coverage area of ​​the scraper 8042 allows the slag removal mechanism 8 to achieve efficient slag removal by combining two slag removal methods, preventing iron slag from accumulating and adhering to the two sides of the sawtooth grid a402 and sawtooth grid b403.

[0070] Please see Figure 3 , Figure 4 , Figures 6-8 , Figure 14 and Figure 15Both sides of the sawtooth grille a402 and sawtooth grille b403 are fixed with guide rails 406. The inner walls of the U-shaped fixed shell 801 are connected with damping guide wheels 805 that are engaged and pressed against the guide rails 406. A card seat 806 is fixed on one side of the outer wall of the fixed shell 801.

[0071] In this embodiment, the fixed shell 801 is secured to the guide rail 406 by the damping guide wheel 805 on the inner wall, so that the slag removal mechanism 8 will not fall off when it is engaged with the sawtooth grid a402 and sawtooth grid b403. When the two slag removal mechanisms 8 move closer or further away from each other along the sawtooth grid a402 and sawtooth grid b403, the slag removal mechanism 8 will move stably along the guide rail 406 by the damping guide wheel 805 on both sides of the inner wall of the fixed shell 801. The stable movement of the fixed shell 801 will drive the two slag removal discs 804 that rotate in opposite directions to scrape off the iron slag in opposite rotation directions. This can balance the impact force of the iron slag on both sides of the sawtooth grid a402 and sawtooth grid b403, realize the mutual cancellation of the impact force, and prevent the slag removal mechanism 8 from moving unbalanced during slag removal.

[0072] Please see Figures 1-8 and Figure 12 A transverse movement mechanism 7 is provided on one side of the reinforcing rib 3. The transverse movement mechanism 7 includes a lead screw 701 connected to the limiting chamber 2 via a bearing seat. The surface of the lead screw 701 is provided with two sections of threads with opposite directions of rotation. Moving blocks 703 are threadedly connected to both sides of the lead screw 701. A drive motor 702 for driving the lead screw 701 to rotate is installed on one of the limiting chambers 2.

[0073] In this embodiment, the drive motor 702 is started to make the lead screw 701 rotate forward. The forward-rotating lead screw 701 will drive the moving block 703 to move closer to each other through two sections of threads with opposite directions of rotation. Conversely, when the drive motor 702 is rotating the lead screw 701 in the opposite direction, it will drive the moving block 703 to move away from each other through two sections of threads with opposite directions of rotation.

[0074] Please see Figures 1-8 , Figure 12 and Figure 13The transverse movement mechanism 7 includes a snap-fit ​​frame 705 that overlaps two reinforcing ribs 3 in parallel. By pushing and pulling the snap-fit ​​frame 705 through the transverse movement mechanism 7, the snap-fit ​​frame 705 drives the slag removal mechanism 8 to move horizontally along the serrated grids a402 and b403 that are evenly distributed. A traction arm 704 is movably connected between the moving block 703 and the snap-fit ​​frame 705. A stop bar B is fixed on the side of the moving block 703 near the traction arm 704, and a spring pin C is telescopically connected to the surface of the moving block 703 near the stop bar B. Protruding snap-fit ​​blocks are fixed on the sides of both ends of the snap-fit ​​frame 705. A reserved cavity for longitudinal movement of the snap-fit ​​frame 705 is longitudinally opened on the surface of the limiting chamber 2 near both ends of the reinforcing ribs 3. The reserved cavity is formed by the bottom limiting port and the top insertion port. The protruding snap-fit ​​blocks on the snap-fit ​​frame 705 match and mate with the limiting port. The width of the insertion port is greater than the width of the snap-fit ​​block.

[0075] In this embodiment, since the forward-rotating lead screw 701 will drive the two moving blocks 703 to move closer to each other, in the initial state, the protruding locking blocks at both ends of the locking frame 705 are engaged with the limiting port, and the locking frame 705 overlaps on the reinforcing rib 3. At this time, the traction arm 704 and the lead screw 701 are in an acute angle distribution state. Therefore, when the two moving blocks 703 move closer to each other, they will be pushed upward by the inclined traction arm 704 to move the locking frame 705. The upward-moving locking frame 705 will drive the protruding locking blocks along the... As the limiting port moves upward, when the protruding locking block moves upward to the insertion port of the reserved cavity, the traction arm 704 will deflect and squeeze the spring pin C, making the traction arm 704 and the lead screw 701 in a vertical distribution state. The traction arm 704 will be blocked by the stop bar B on one side of the moving block 703. As a result, the moving block 703, which continues to move, will push the traction arm 704 towards the center of the sawtooth grid a402 and the sawtooth grid b403 through the stop bar B. At this time, the protruding locking block on the locking frame 705 will be discharged from the insertion port.

[0076] When the snap-fit ​​frame 705 moves up to the limit position along the reserved cavity, the snap-fit ​​frame 705 will approach the horizontally placed fixed shell 801 and lock with the snap-fit ​​seat 806. As a result, the screw 701, which continues to rotate in the forward direction, will drive the two slag removal mechanisms 8 to move closer along the sawtooth grid a402 and sawtooth grid b403 respectively through the two snap-fit ​​frames 705 that are close to each other. In this way, the iron slag can be quickly removed by the two slag removal mechanisms 8 that are close to each other.

[0077] Conversely, when the lead screw 701 drives the two locking frames 705 and the slag removal mechanism 8 to move away from each other, the slag removal mechanism 8, having completed the scraping of iron slag, can reset and move along the sawtooth grid a402 and sawtooth grid b403 by the squeezing and pushing of the traction arm 704 by the spring pin C and the locking and limiting of the locking seat 806 and the locking frame 705; when the locking frame 705 moves to abut against the limiting chamber 2, the slag removal mechanism 8 will move to the initial position, and the protruding locking block on the locking frame 705 will re-enter the insertion port. At this time, the lead screw 701, which continues to reverse, will again drive the moving block 703 to pull the traction arm 704 to deflect in the opposite direction and squeeze the spring pin C. Thus, the moving block 703, which continues to move away from each other, will drive the locking frame 705 to move down along the limiting port through the traction arm 704. At this time, the locking frame 705 will separate from the locking seat 806 of the slag removal mechanism 8.

[0078] Please see Figure 3 , Figure 4 , Figures 6-8 In order to clean the slag in the central area of ​​sawtooth grids a402 and b403, the following features are also provided:

[0079] The ends of the two guide rails 406 located in the middle of the sawtooth grids a402 and b403 are provided with curved sections that are far apart from each other. When the fixed shell 801 moves along the guide rails 406 to the curved section via the damping guide wheel 805, the two slag removal mechanisms 8 will drive their slag removal discs 804 to move away from each other. Thus, when the two slag removal mechanisms 8 move to the middle area of ​​the sawtooth grids a402 and b403 respectively, they will move away from each other to avoid each other, ensuring that the iron slag in the middle area of ​​the sawtooth grids a402 and b403 can be cleaned without interference or collision.

[0080] Please see Figure 1 and Figure 2 A crossbeam is fixed on the reinforcing rib 3 to provide central support for the vertically placed sawtooth grids a402 and b403, and a gap sufficient for the locking frame 705 to move is reserved between the crossbeam and the horizontally placed sawtooth grids a402 and b403.

[0081] In this embodiment, when the sawtooth grids a402 and b403 are rotated and placed vertically, the crossbeam supports the sawtooth grids a402 and b403. When the sheet metal parts are pressed on the sawtooth grids a402 and b403, bending deformation at the center of the sawtooth grids a402 and b403 can be prevented. When the sawtooth grids a402 and b403 are rotated and placed horizontally, the laterally moving snap-fit ​​frame 705 will pass through the gap above the crossbeam without collision interference. At this time, the snap-fit ​​frame 705 can drive the slag removal mechanism 8 to move to the central area of ​​the sawtooth grids a402 and b403 for slag removal.

[0082] Working principle: The laser cutter 103 is brought close to the sheet metal part by the longitudinal movement module to align it with the sheet metal part. Under program control, the forward movement module 101 and the lateral movement module 102 can drive the laser cutter 103 to cut the sheet metal part into a preset shape. When the laser cutting of the sheet metal part is completed, the cylinder 501 of the drive mechanism 5 causes the conveyor roller 6 to be lifted upward and support the sheet metal part. When the conveyor roller 6 is running, it can take the sheet metal part out of the processing area of ​​the worktable 1. When the conveyor roller 6 lifts the sheet metal part upward, the drive mechanism... The mechanism 5 drives the thick toothed disk 405 and the flat toothed disk 404 to mesh with each other through the rack 505, thereby changing the sawtooth grid a402 and sawtooth grid b403 of the support component 4 from a vertical position to a horizontal position. At this time, the traction of the slag removal mechanism 8 by the transverse movement mechanism 7 can remove the slag from the horizontally meshed sawtooth grid a402 and sawtooth grid b403, ensuring that the laser cutting machine will perform slag removal operation on the sawtooth grid a402 and sawtooth grid b403 of the support component 4 after each processing operation of the sheet metal parts.

[0083] Conversely, when the conveyor roller 6 receives a new sheet metal part and moves downward, the sawtooth grid a402 and sawtooth grid b403 of the support assembly 4 will change from a horizontal position to a vertical position and achieve multi-point support for the sheet metal part. At this time, the slag removal mechanism 8 will move to a position close to the limit chamber 2 and separate from the transverse movement mechanism 7. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

Claims

1. A laser cutting machine for sheet metal processing, comprising a worktable (1), wherein a laser cutter (103) for laser cutting sheet metal parts is disposed above the worktable (1); characterized in that: Two limiting chambers (2) are arranged in parallel on the workbench (1). Conveying rollers (6) for translating and conveying sheet metal parts are arranged at equal intervals between the two limiting chambers (2). A driving mechanism (5) for driving the conveying rollers (6) to move up and down in height is provided inside the limiting chamber (2). The conveying roller (6) is symmetrically provided with support components (4) for horizontally supporting sheet metal parts. The support components (4) in the same group include sawtooth grids a (402) and sawtooth grids b (403) vertically arranged between the two limiting chambers (2). The upward-lifting conveying roller (6) drives the sawtooth grids a (402) and sawtooth grids b (403) from a vertical position to a horizontal position. The sawtooth grids a (402) and sawtooth grids b (403) that are reversed to each other are laterally misaligned, so that the interlocking sawtooth grids a (402) and sawtooth grids b (403) can squeeze out the attached iron slag. The sawtooth grids a (402) and sawtooth grids b (403) are misaligned and provided with slag removal mechanisms (8). The two limiting chambers (2) are reinforced by reinforcing ribs (3) welded vertically to each other. A transverse movement mechanism (7) is provided on one side of the reinforcing ribs (3). The transverse movement mechanism (7) includes a snap-fit ​​frame (705) that overlaps the two reinforcing ribs (3) in parallel. By pushing and pulling the snap-fit ​​frame (705) through the transverse movement mechanism (7), the snap-fit ​​frame (705) drives the slag removal mechanism (8) to move horizontally along the serrated grid a (402) and serrated grid b (403) that are evenly distributed. The slag removal mechanism (8) includes a U-shaped fixed shell (801) sleeved on the sawtooth grid a (402) and sawtooth grid b (403). A motor (802) is installed at one end of the fixed shell (801). The output end of the motor (802) is connected to a drive gear disk. Two sets of gears (803) are arranged inside the fixed shell (801). The transmission start end of the two sets of gears (803) meshes with the drive gear disk. The transmission ends of the two sets of gears (803) are connected to parallel slag removal disks (804). The two sets of gears (803) driven by the drive gear disk can make the two slag removal disks (804) reverse each other. The inside of the slag removal disc (804) is connected to a scraper (8042) by a tension spring (8041). The rotating slag removal disc (804) can overcome the traction force of the tension spring (8041) on the scraper (8042) through centrifugal force, so that the scraper (8042) extends out along the edge of the slag removal disc (804).

2. The laser cutting machine for sheet metal processing according to claim 1, characterized in that: The workbench (1) has forward moving modules (101) on both sides of the top, and the forward moving modules (101) are provided with lateral moving modules (102) that can move forward and backward. The lateral moving modules (102) are provided with longitudinal moving modules that drive the laser cutter (103) to adjust the height difference with the sheet metal part.

3. The laser cutting machine for sheet metal processing according to claim 1, characterized in that: There shall be at least one set of support components (4) located on one side of the conveyor roller (6); The sawtooth grille a (402) and sawtooth grille b (403) are provided with convex teeth and grooves of matching size, and the sawtooth grille a (402) and sawtooth grille b (403) support the sheet metal parts through the convex teeth.

4. A laser cutting machine for sheet metal processing according to claim 3, characterized in that: The two ends of the sawtooth grid a (402) and sawtooth grid b (403) are fixed with rotating shafts, and the rotating shafts of the sawtooth grid a (402) and sawtooth grid b (403) are fixed with moving pins (407). The moving pins (407) on the adjacent rotating shafts of the sawtooth grid a (402) and sawtooth grid b (403) are staggered by 90° to each other. Flat toothed discs (404) and thick toothed discs (405) are fixed on the rotation shafts at both ends of the sawtooth grid a (402) and sawtooth grid b (403). The flat toothed discs (404) and thick toothed discs (405) on the rotation shaft of the sawtooth grid a (402) are respectively meshed with the thick toothed discs (405) and flat toothed discs (404) on the rotation shaft of the sawtooth grid b (403). The meshing thick toothed discs (405) and flat toothed discs (404) can make the sawtooth grid a (402) and sawtooth grid b (403) rotate in opposite directions.

5. A laser cutting machine for sheet metal processing according to claim 4, characterized in that: The inner wall of the limiting chamber (2) is inlaid with two sets of guide sleeves (401) that are respectively inserted into the rotating shaft of the sawtooth grid a (402) and the rotating shaft of the sawtooth grid b (403). On the inner walls of the two guide sleeves (401) on the same side for inserting the rotating shaft of the sawtooth grid a (402) and the rotating shaft of the sawtooth grid b (403), there are spiral grooves (4011) that are offset in the same direction of rotation and are connected to the moving pin (407). The moving pin (407) that slides along the spiral groove (4011) can drive the sawtooth grid a (402) and the sawtooth grid b (403) that are reversed to move laterally and offset from each other.

6. A laser cutting machine for sheet metal processing according to claim 4, characterized in that: The drive mechanism (5) includes cylinders (501) spaced apart inside the limiting chamber (2), a limiting frame (502) is fixed on the cylinder (501), and a sliding sleeve (503) that is longitudinally pushed and pulled by the output rod of the cylinder (501) slides in the limiting frame (502). The interior of the sliding sleeve (503) is connected to the end of the conveying roller (6) through a bearing. The end of the conveying roller (6) that extends through the sliding sleeve (503) is linked to the transmission belt through a pulley. One of the transmission belts is connected to a conveying motor that can switch the rotation direction. Several equally spaced conveyor rollers (6) are movably connected by a connecting rod (504) so ​​that the equally spaced conveyor rollers (6) maintain the same horizontal height, and the conveyor motor is installed at one end of the connecting rod (504).

7. A laser cutting machine for sheet metal processing according to claim 6, characterized in that: A rack (505) is fixed on one side of the connecting rod (504) and extends downward to mesh with the thick toothed disc (405). The connecting rod (504) moves longitudinally and drives the rack (505) to mesh with the thick toothed disc (405), so that the adjacent flat toothed discs (404) and thick toothed discs (405) between the sawtooth grid a (402) and the sawtooth grid b (403) are reversed.

8. A laser cutting machine for sheet metal processing according to claim 1, characterized in that: The two sides of the sawtooth grid a (402) and sawtooth grid b (403) are fixed with guide rails (406). The inner walls of the U-shaped fixed shell (801) are connected with damping guide wheels (805) that are snapped and abutted against the guide rails (406). The outer wall of the fixed shell (801) is fixed with a card seat (806). The ends of the two guide rails (406) located in the middle of the sawtooth grid a (402) and sawtooth grid b (403) are provided with bends that are far apart from each other.

9. A laser cutting machine for sheet metal processing according to claim 1, characterized in that: The transverse mechanism (7) includes a lead screw (701) connected to the limiting chamber (2) via a bearing seat. The surface of the lead screw (701) is provided with two sections of threads with opposite directions of rotation. Moving blocks (703) are threadedly connected to both sides of the lead screw (701). A drive motor (702) for driving the lead screw (701) to rotate is installed on one of the limiting chambers (2). A traction arm (704) is movably connected between the movable block (703) and the snap-fit ​​frame (705). A stop bar B is fixed on the side of the movable block (703) near the traction arm (704), and a spring pin C is telescopically connected to the surface of the movable block (703) near the stop bar B. The two sides of the snap-fit ​​frame (705) are fixed with protruding snap-fit ​​blocks. The limiting chamber (2) is provided with a reserved cavity on the surface near the two ends of the reinforcing rib (3) to allow the snap-fit ​​frame (705) to move longitudinally. The reserved cavity is formed by the bottom limiting port and the top insertion port. The protruding snap-fit ​​blocks on the snap-fit ​​frame (705) are matched and connected with the limiting port.

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