A laser cutting machine

Abstract

A kind of laser cutting machine, including the laser cutting machine body with rack, the top of the rack is fixed with two beams arranged at intervals, several support rods are arranged equidistantly between two beams, the section of support rod is triangular, one end of support rod is rotatably provided with roller along its length direction, both ends of support rod are fixedly provided with rotating shaft, one end of rotating shaft is rotatably connected with corresponding beam, driven gear is fixedly installed on rotating shaft, driving assembly for driving driven gear reciprocating rotation is arranged on beam.Both can make the end of support rod not provided with roller contact with plate during cutting, increase the friction between support rod and plate, prevent plate from moving during cutting;Also can make roller contact with plate during feeding and discharging, reduce friction, prevent support rod from damaging or scratching plate, so as to keep the appearance of plate beautiful.

Description

Technical Field

[0001] This invention relates to the field of cutting machine technology, and more specifically to a laser cutting machine. Background Technology

[0002] A laser cutting machine uses a laser beam emitted from a laser source, which is focused into a high-power-density laser beam through an optical path system. This laser beam irradiates the surface of the workpiece, causing it to reach its melting or boiling point. Simultaneously, high-pressure gas, coaxial with the beam, blows away the molten or vaporized metal. As the relative position of the beam and the workpiece moves, a kerf is eventually formed in the material, thus achieving the purpose of cutting.

[0003] For example, patent document CN117921205B, entitled "A Laser Cutting Machine and Its Usage Method," includes a machine bed. Several support beams are equidistantly arranged longitudinally between the inner surfaces of the two transverse sides of the machine bed. Several support toothed plates are equidistantly inserted between the tops of the support beams. A control device is located on the outer surface of one longitudinal side of the machine bed. A centrifugal fan is located on the outer surface of one transverse side of the machine bed. A dust collection box is located next to the centrifugal fan. Storage platforms are located at the top of the outer surfaces of both transverse sides of the machine bed. Slide rails are located at both ends of the top longitudinal section of the machine bed, extending to the top of the storage platform. A traveling platform is located inside the slide rail at one longitudinal end of the machine bed. A cutting assembly is slidably connected between the slide rails. A slag removal assembly is slidably connected between the slide rails on one transverse side of the cutting assembly. This design allows for dust extraction and removal from the surrounding area during laser cutting, and facilitates the removal of slag adhering to the support toothed plates after long-term use.

[0004] However, in actual use, although the support toothed plate can increase the friction between itself and the material to be cut and prevent the material from moving during the cutting process, the sharp points of the support toothed plate can easily scratch and damage the surface of the material during the process of loading and unloading. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a laser cutting machine that solves the technical problem mentioned in the background art where the spikes of the support tooth plate easily cause scratches and damage to the surface of the sheet material during the process of the sheet material being detached from the support tooth plate.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A laser cutting machine includes a laser cutting machine body with a frame. Two crossbeams are fixedly arranged at intervals on the top of the frame. Several support rods are equidistantly arranged between the two crossbeams. The cross-section of the support rods is triangular. A roller is rotatably installed at one end of the support rod along its length. A rotating shaft is fixedly installed at both ends of the support rod. One end of the rotating shaft is rotatably connected to the corresponding crossbeam. A driven gear is fixedly installed on the rotating shaft. A drive assembly for driving the driven gear to reciprocate is provided on the crossbeam.

[0007] Furthermore, the drive assembly includes a double-sided rack slidably mounted on a crossbeam and a motor fixedly mounted on one of the crossbeams. The output end of the motor is fixedly equipped with a drive gear, which meshes with the corresponding double-sided rack, and the double-sided rack meshes with the corresponding driven gear.

[0008] Furthermore, the top of the frame is also provided with a clamping assembly for clamping the sheet metal.

[0009] Furthermore, the clamping assembly includes a double-ended threaded rod and two clamping plates. The two ends of the double-ended threaded rod are rotatably connected to the corresponding crossbeams and are coaxially fixedly connected to the output end of the motor. Moving rods are threadedly connected to both sides of the rod, and the two clamping plates are fixedly connected to the corresponding moving rods.

[0010] Furthermore, two guide rods are fixedly arranged at intervals between the two crossbeams, and guide blocks are slidably arranged on both sides of the guide rods, with the guide blocks being fixedly connected to the corresponding clamping plates.

[0011] Furthermore, the clamping plate is provided with a clamping assembly for pressing the plate.

[0012] Furthermore, the clamping assembly includes a pressure plate and a push block. A slider is symmetrically fixed on one side of the pressure plate. The slider is slidably connected to the corresponding clamping plate. The push block is slidably connected to the corresponding clamping plate and has an inclined groove. A push rod is fixedly installed on the slider and slides with the inclined groove.

[0013] Furthermore, the clamping plate is symmetrically provided with sliding grooves, which are slidably connected to the corresponding sliders, and springs are fixedly provided between the sliders and the corresponding sliding grooves.

[0014] The beneficial effects of this invention are as follows: by providing support rods, rollers, rotating shafts, driven gears, and a drive assembly for driving the driven gears to reciprocate, the drive assembly drives multiple support rods to rotate in both directions. This allows the ends of the support rods without rollers to contact the sheet material during cutting, increasing the friction between the support rods and the sheet material and preventing the sheet material from moving during the cutting process. It also allows the rollers to contact the sheet material during loading and unloading, reducing friction and preventing the support rods from damaging or scratching the sheet material, thereby maintaining the aesthetic appearance of the sheet material. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a partial perspective view of the present invention; Figure 3 For the present invention Figure 2 Enlarged view of point A; Figure 4 For the present invention Figure 2 Enlarged view of point B; Figure 5 For the present invention Figure 2 A bottom view; Figure 6 For the present invention Figure 2 Right side sectional view; Figure 7 For the present invention Figure 6 Enlarged view of point C; Figure 8 For the present invention Figure 2 Another perspective stereoscopic view; Figure 9 For the present invention Figure 8 Enlarged view of point D; Figure 10 For the present invention Figure 2 The front view; Figure 11 For the present invention Figure 10 Enlarged view of point E.

[0016] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Crossbeam; 3. Support rod; 4. Collection hopper; 5. Drum; 6. Rotating shaft; 7. Driven gear; 8. Double-sided rack; 9. Motor; 10. Drive gear; 11. Double-ended threaded rod; 12. Clamping plate; 13. Moving rod; 14. Guide rod; 15. Guide block; 16. Pressure plate; 17. Pushing block; 18. Sliding block; 19. Slide groove; 20. Push rod; 21. Inclined groove; 22. Spring. Detailed Implementation

[0017] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] like Figures 1-5As shown, a laser cutting machine includes a machine body with a frame 1. Two rectangular crossbeams 2, arranged at intervals, are fixedly mounted on the top of the frame 1. Each crossbeam 2 is a cuboid structure and hollow inside. Several support rods 3, with equilateral triangular cross-sections, are installed equidistantly between the two crossbeams 2. A collecting hopper 4 is also installed on the frame 1, located below the support rods 3, for collecting cutting debris and fragments. A discharge port is located below the collecting hopper 4, and a baffle (not shown) is installed at the discharge port via a snap-fit ​​mechanism. When it is necessary to discharge debris and fragments from the collecting hopper 4, the baffle can be opened to discharge the debris and fragments.

[0019] like Figures 2-7 As shown, a roller 5 is rotatably mounted on one of the top ends of the support rod 3 along its length. A rotating shaft 6 is fixedly mounted at the center of both ends of the support rod 3. One end of the rotating shaft 6 is rotatably connected to the corresponding crossbeam 2 and extends into the interior of the crossbeam 2. A driven gear 7 is fixedly fitted onto the end of the rotating shaft 6 inside the crossbeam 2. A drive assembly for driving the driven gear 7 to reciprocate is mounted on the crossbeam 2. The drive assembly includes a double-sided rack 8 slidably mounted inside the crossbeam 2 and a motor 9 fixedly mounted inside one of the crossbeams 2. The motor 9 is a servo motor 9. The double-sided rack 8 can slide along the length of the crossbeam 2. A driving gear 10 is fixedly mounted on the output end of the motor 9. The driving gear 10 meshes with the bottom of the corresponding double-sided rack 8, and the top of the double-sided rack 8 meshes with the corresponding driven gear 7.

[0020] During loading, the sheet material to be cut is placed on the roller 5 of the support rod 3 located at the front of the support frame, and then the sheet material is pushed to the rear of the support frame. At this time, the roller 5 contacts the sheet material and rolls, thereby reducing the friction between the sheet material and the support rod 3. This reduces scratches caused by the support rod 3 to the sheet material and makes it easier for workers to push the sheet material, achieving the purpose of saving effort and facilitating loading. The motor 9 is started, and the motor 9 drives the drive gear 10 to rotate. The drive gear 10 drives the double-sided rack 8 to move, and the double-sided rack 8 in turn drives the corresponding multiple driven gears 7 to rotate, so that multiple support rods 3 rotate synchronously. When the end of the support rod 3 that is not installed with the roller 5 rotates to contact the sheet material, it increases the friction between the support rod 3 and the sheet material, thereby preventing the sheet material from moving during the cutting process.

[0021] After cutting, when unloading, the motor 9 is started in reverse. The motor 9, through transmission, drives the support rod 3 to rotate in the opposite direction. As the support rod 3 rotates, it pushes the sheet material outward from the frame 1, causing the front edge of the sheet material to detach from the support rod 3, making it easier for workers to pick up and unload. Simultaneously, the reverse rotation of the support rod 3 causes the ends of the multiple support rods 3 equipped with rollers 5 to rotate back into contact with the sheet material. This allows workers to reduce friction between the sheet material and the support rod 3 when dragging the sheet material for unloading, preventing the support rod 3 from scratching or damaging the sheet material.

[0022] Therefore, by rotating the support rod 3 in both directions, the roller 5 can come into contact with the sheet material during loading and unloading, reducing friction and preventing the support rod 3 from damaging or scratching the sheet material, thus maintaining the aesthetic appearance of the sheet material. During cutting, the end of the support rod 3 without the roller 5 can come into contact with the sheet material, increasing the friction between the support rod 3 and the sheet material and preventing the sheet material from moving during cutting. Furthermore, the rotation of the support rod 3 in both directions also prevents fragments from being trapped between adjacent support rods 3, allowing the fragments to fall smoothly into the collection hopper 4 below the support rod 3.

[0023] like Figures 2-7 As shown, the top of the frame 1 is also equipped with a clamping assembly for holding the sheet metal. The clamping assembly includes a double-threaded rod 11 and two clamping plates 12. The two ends of the double-threaded rod 11 are rotatably connected to the corresponding crossbeams 2, and one end is coaxially fixedly connected to the output end of the motor 9. The double-threaded rod 11 has threaded sections with opposite directions on both sides, and movable rods 13 are threadedly connected to both sides. The two clamping plates 12 are fixedly connected to the corresponding movable rods 13. Since the support rod 3 is an equilateral triangular structure, when the motor 9 drives the support rod 3 to rotate 120 degrees or 240 degrees, the end of the support rod 3 without the roller 5 contacts the sheet metal. At the same time, the motor 9 drives the double-threaded rod 11 to rotate, and the rotation of the double-threaded rod 11 causes the two clamping plates 12 to move closer to each other, thereby clamping the sheet metal and preventing it from moving during the cutting process.

[0024] like Figure 4 As shown, two guide rods 14 are fixedly installed between the two crossbeams 2 at intervals. Guide blocks 15 are slidably installed on both sides of the guide rods 14, and the guide blocks 15 are fixedly connected to the corresponding clamping plates 12. When the clamping plates 12 move, they drive the guide blocks 15 to slide along the guide rods 14, thereby increasing the stability of the clamping plates 12 during movement.

[0025] like Figures 2-11 As shown, a clamping assembly for pressing the sheet metal is installed on the clamping plate 12. The clamping assembly includes a pressure plate 16 and a push block 17. A slider 18 is symmetrically fixedly installed on one side of the pressure plate 16, and the slider 18 is slidably connected to the corresponding clamping plate 12. A sliding groove 19 is symmetrically opened on the clamping plate 12, and the sliding groove 19 is slidably connected to the corresponding slider 18. Two push blocks 17 are provided, symmetrically arranged on both sides of the clamping plate 12, and slidably connected to the corresponding clamping plate 12. A push rod 20 passes through the clamping plate 12, and an inclined groove 21 is opened on the side of the push rod facing away from the pressure plate 16. A push rod 20 is fixedly installed on one side of the slider 18, and the push rod 20 is slidably engaged with the corresponding inclined groove 21. A spring 22 is fixedly installed between the slider 18 and the bottom wall of the corresponding sliding groove 19.

[0026] As the two clamping plates 12 approach each other, the push block 17 first contacts the plate and is pressed by it, thus moving away from the plate. At this time, the inclined groove 21 on the push block 17 slides with the push rod 20, driving the slider 18 to move downward. The slider 18 drives the pressure plate 16 to move downward synchronously, thereby pressing the plate to further prevent the plate from moving during the cutting process.

[0027] As the pressure plate 16 moves downward, it compresses the spring 22. The spring 22 can prevent the pressure plate 16 from putting too much pressure on the plate and causing damage. On the other hand, when the clamping plate 12 moves away from the plate, it helps to drive the pressure plate 16 and the push block 17 to reset.

[0028] Working principle: When cutting the sheet material, the sheet material to be cut is placed on the roller 5 of the support rod 3 located in front of the support frame, and then the sheet material is pushed to the rear of the support frame. The motor 9 is started, and the motor 9 drives the drive gear 10 to rotate. The drive gear 10 drives the double-sided rack 8 to move, and the double-sided rack 8 in turn drives the corresponding driven gears 7 to rotate, causing the multiple support rods 3 to rotate synchronously. Because the support rod 3 has an equilateral triangular structure, when the motor 9 drives the support rod 3 to rotate 120 degrees or 240 degrees, the end of the support rod 3 without the roller 5 contacts the sheet material, increasing the friction between the support rod 3 and the sheet material and preventing the sheet material from moving during the cutting process.

[0029] At the same time, the motor 9 drives the double-headed threaded rod 11 to rotate synchronously. The rotation of the double-headed threaded rod 11 causes the two clamping plates 12 to move closer to each other, thereby clamping the plate and preventing the plate from moving during the cutting process.

[0030] Meanwhile, as the two clamping plates 12 approach each other, the push block 17 first contacts the plate and is pressed by it, thus moving away from the plate. At this time, the inclined groove 21 on the push block 17 slides with the push rod 20, driving the slider 18 to move downward. The slider 18 drives the pressure plate 16 to move downward synchronously, thereby pressing the plate to further prevent the plate from moving during the cutting process.

[0031] After cutting, when unloading, the motor 9 is started in reverse. The motor 9, through transmission, drives the support rod 3 to rotate in the opposite direction. As the support rod 3 rotates, it pushes the sheet material outward from the frame 1, causing the front edge of the sheet material to detach from the support rod 3, making it easier for workers to pick up and unload. Simultaneously, the reverse rotation of the support rod 3 causes the ends of the multiple support rods 3 equipped with rollers 5 to rotate back into contact with the sheet material. This allows workers to reduce friction between the sheet material and the support rod 3 when dragging the sheet material for unloading, preventing the support rod 3 from scratching or damaging the sheet material.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A laser cutting machine, comprising a laser cutting machine body with a frame (1), characterized in that, The top of the frame (1) is fixed with two crossbeams (2) arranged at intervals. Several support rods (3) are equidistantly arranged between the two crossbeams (2). The cross section of the support rod (3) is triangular. A roller (5) is rotatably arranged at one end of the support rod (3) along its length direction. A rotating shaft (6) is fixedly arranged at both ends of the support rod (3). One end of the rotating shaft (6) is rotatably connected to the corresponding crossbeam (2). A driven gear (7) is fixedly installed on the rotating shaft (6). A drive assembly for driving the driven gear (7) to reciprocate is provided on the crossbeam (2).

2. The laser cutting machine according to claim 1, characterized in that, The drive assembly includes a double-sided rack (8) slidably mounted on a crossbeam (2) and a motor (9) fixedly mounted on one of the crossbeams (2). The output end of the motor (9) is fixedly provided with a drive gear (10), which meshes with the corresponding double-sided rack (8), and the double-sided rack (8) meshes with the corresponding driven gear (7).

3. The laser cutting machine according to claim 2, characterized in that, The top of the frame (1) is also provided with a clamping assembly for clamping the sheet metal.

4. The laser cutting machine according to claim 3, characterized in that, The clamping assembly includes a double-ended threaded rod (11) and two clamping plates (12). The two ends of the double-ended threaded rod (11) are rotatably connected to the corresponding crossbeam (2) and are coaxially fixedly connected to the output end of the motor (9). Both sides of the rod are threadedly connected to moving rods (13), and the two clamping plates (12) are fixedly connected to the corresponding moving rods (13).

5. The laser cutting machine according to claim 4, characterized in that, Two guide rods (14) are fixedly arranged at intervals between the two crossbeams (2). Guide blocks (15) are slidably arranged on both sides of the guide rods (14). The guide blocks (15) are fixedly connected to the corresponding clamps (12).

6. The laser cutting machine according to claim 4, characterized in that, The clamping plate (12) is provided with a clamping component for pressing the plate.

7. The laser cutting machine according to claim 6, characterized in that, The clamping assembly includes a pressure plate (16) and a push block (17). A slider (18) is symmetrically fixed on one side of the pressure plate (16). The slider (18) is slidably connected to the corresponding clamping plate (12). The push block (17) is slidably connected to the corresponding clamping plate (12). An inclined groove (21) is opened on the push block (17). A push rod (20) is fixedly installed on the slider (18). The push rod (20) is slidably engaged with the inclined groove (21).

8. The laser cutting machine according to claim 7, characterized in that, The clamping plate (12) is symmetrically provided with sliding grooves (19), which are slidably connected to the corresponding slider (18). A spring (22) is fixedly provided between the slider (18) and the corresponding sliding groove (19).

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