A CNC laser cutting machine for metal material processing

Abstract

The present invention belongs to the technical field of laser cutting, and specifically relates to a numerically controlled laser cutting machine for metal material processing, including a machine body. A moving frame is fixedly connected above the machine body. A sliding table is slidably connected to the upper surface of the moving frame. A laser cutting head is arranged on one side of the sliding table. The laser cutting head moves for cutting work along with the movement of the sliding table. A limiting component is arranged on the upper surface of the machine body. The limiting component includes a reciprocating screw rod rotatably arranged on the upper surface of the machine body. A sliding rod is slidably connected to the circumferential surface of the reciprocating screw rod. A plurality of sliding plates are arranged on the surface of the sliding rod. The plurality of sliding plates perform a limiting function on the metal plate. Rotating gears are fixedly connected to both ends of the reciprocating screw rod. One of the rotating gears is fixedly connected to a motor. By arranging the limiting component and the lifting component, the problem of easy misalignment and offset during the laser cutting process is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of laser cutting, and specifically relates to a numerically controlled laser cutting machine for metal material processing. Background Art

[0002] With the rapid development of science and technology, the application fields of laser technology are constantly expanding and deepening. Among them, laser cutting processing technology, as an innovative processing method, replaces traditional mechanical tools with invisible high-energy laser beams.

[0003] During the existing laser cutting process, first, the metal plate to be cut is placed on the surface of the machine body. Then, by starting the sliding table on the machine body, the sliding table is moved to the initial cutting position. Next, the laser cutting head is moved downward to gradually approach the metal plate. After approaching the metal plate by a certain distance, the laser cutting head is started, and the sliding table is driven to move, and the laser cutting head can perform cutting work on the metal plate to be cut.

[0004] However, after the existing metal plate is placed on the upper surface of the machine body, it is not effectively fixed. When the laser cutting head cuts, the machine body will generate a certain vibration, and this vibration may cause the metal plate to move to a certain extent on the surface of the machine body, which will cause the cutting trajectory of the laser cutting head to deviate during the cutting process, resulting in inconsistent cutting dimensions and the problem of cutting failure. In addition, during the cutting process, since the metal slag sputtered by high-temperature cutting during the laser cutting process will adhere to the surface of the metal plate, if it is not cleaned in time, when the metal slag cools, it will be extremely firmly fixed on the surface of the metal plate, making it difficult to clean, affecting the quality of the metal plate, increasing the production workload, and resulting in the problem of low processing efficiency.

[0005] Therefore, the present invention provides a numerically controlled laser cutting machine for metal material processing. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A numerically controlled laser cutting machine for metal material processing according to the present invention includes a machine body. A moving frame is fixedly connected above the machine body. A sliding table is slidably connected to the upper surface of the moving frame. A laser cutting head is arranged on one side of the sliding table. The laser cutting head moves with the sliding table to perform moving cutting work. A limiting component is arranged on the upper surface of the machine body. The limiting component includes a reciprocating screw rod rotatably arranged on the upper surface of the machine body. A sliding rod is slidably connected to the circumferential surface of the reciprocating screw rod. A plurality of sliding plates are arranged on the surface of the sliding rod, and the plurality of sliding plates perform limiting work on the metal plate.

[0008] Both ends of the reciprocating screw are fixedly connected with rotating gears. One side of one of the rotating gears is fixedly connected with a motor. A rack plate is slidably connected to the body at the position corresponding to each rotating gear. The rack plate is used to trigger the lifting assembly to assist in the blanking work;

[0009] The lifting assembly includes a top plate slidably arranged in the body. A plurality of top columns are fixedly connected to the upper surface of the top plate. The plurality of top columns are used to jack up the cut metal plate.

[0010] Preferably, the limiting assembly further includes a limiting plate elastically arranged at one end of the sliding plate. Two tension springs are fixedly connected to the upper surface of the limiting plate. The tops of the two tension springs are fixedly connected to the same auxiliary plate. Two auxiliary rods are fixedly connected to the lower surface of the auxiliary plate. The two auxiliary rods penetrate through the sliding plate. The bottoms of the two auxiliary rods are fixedly connected to the same limiting plate.

[0011] Preferably, when the limiting plate is in the initial state, it is far away from the sliding plate. When the motor is started to drive the reciprocating screw to rotate, the sliding rod drives a plurality of sliding plates to gradually approach the metal plate to be cut. The limiting plate abuts against the metal plate. The metal plate jacks up the limiting plate along the hypotenuse of the limiting plate. The limiting plate pushes the auxiliary rod to move upward, causing the tension spring to undergo an elongation deformation to perform the limiting work.

[0012] Preferably, there are two groups of sliding plates. One group is fixedly arranged on one side of the body, and the other group is driven to slide through a sliding rod. The limiting work of the corresponding metal plate cutting is carried out through the two groups of limiting plates.

[0013] Preferably, the lifting assembly includes a connecting plate fixedly connected to the lower surface of the rack plate. One end of the connecting plate away from the rack plate is fixedly connected with a moving platform. The cross section of the moving platform is a right trapezoid. A bottom plate is fixedly connected to the inside of the body. A fixing hole is formed on the surface of the bottom plate. A fixing column is inserted into the fixing hole. The tops of the plurality of fixing columns are fixedly connected to the same top plate. The top plate jacks up the metal plate through the top columns.

[0014] Preferably, when the metal plate is cut, at this time, the motor is used to drive the reciprocating screw, and the reciprocating screw then drives one group of limiting plates to release the limitation on the metal plate. When the rotating gear drives the limiting plate away from the metal plate, the two rack plates on both sides drive the corresponding moving platforms to approach the top plate. The top plate rises along the inclined groove formed on one side of the moving platform. During the rising process of the top plate, the fixing columns on its lower surface slide along the fixing holes formed on the bottom plate.

[0015] Preferably, auxiliary rollers are rotatably arranged at both ends of the top plate. The auxiliary rollers are used to assist the top plate to slide along the inclined surface of the moving platform.

[0016] Preferably, a positioning plate is fixedly connected to one side of the sliding table. A scraping plate is elastically connected inside the positioning plate. The scraping plate is used to scrape off the metal slag sputtered on the surface of the metal plate during the cutting process. An auxiliary frame is fixedly connected to one side of the positioning plate. A positioning hole is formed in the upper surface of the auxiliary frame. The laser cutting head penetrates through the positioning hole to perform the cutting work. The auxiliary frame is used to cover the laser cutting head to protect the laser cutting head.

[0017] Preferably, a positioning cavity is formed inside the positioning plate. A plurality of springs are fixedly connected to the inner wall of the positioning cavity. The bottom ends of the plurality of springs are fixedly connected to the same scraping plate. A metal inclined plate is fixedly connected to the bottom end of the scraping plate. The metal inclined plate is used to scrape and guide the metal slag. An expansion rod is fixedly connected to the inside of each spring. The expansion rod is used to limit the spring.

[0018] Preferably, a "z"-shaped guiding groove is formed inside the auxiliary frame. The guiding groove is used to guide the high-temperature gas generated inside the auxiliary frame during the cutting process.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. For the numerical control laser cutting machine for metal material processing of the present invention, through the reciprocating screw, sliding rod and sliding plate of the limiting component, the metal plate can be accurately and flexibly limited, ensuring the cutting accuracy and quality. The gear-rack transmission is used to trigger the lifting component to realize automatic auxiliary blanking, greatly improving the production efficiency, reducing manual operation, lowering the labor intensity and labor cost. At the same time, each component works together to make the entire cutting and blanking process closely connected, smooth and efficient, suitable for large-scale metal plate cutting production scenarios, and helping to improve the consistency and stability of product production.

[0021] 2. For the numerical control laser cutting machine for metal material processing of the present invention, by utilizing the elastic characteristics of the tension spring, the limiting plate can adapt to metal plates of different thicknesses and shapes, realizing accurate and flexible limitation. During the process of the metal plate pushing the limiting plate, the elastic force of the tension spring gradually increases, ensuring stable limitation, effectively preventing the metal plate from shifting during cutting, improving the cutting accuracy. At the same time, the reset function makes the equipment operation more convenient and efficient, reducing the time and energy for manually adjusting the limiting device, and enhancing the overall production efficiency, suitable for various metal plate cutting scenarios, and having good versatility and practicality.

[0022] 3. The numerically controlled laser cutting machine for processing metal materials according to the present invention can adapt to the undulations on the surface of the metal plate through the metal inclined plate in cooperation with the spring and the telescopic rod, efficiently scrape off metal slag, ensure the cutting quality and subsequent processing of the metal plate, the auxiliary frame effectively protects the laser cutting head, reduces the equipment failure rate, extends the service life of the cutting head, reduces the maintenance cost, the overall structure is compact and reasonable, which not only improves the reliability and stability of the cutting operation, but also ensures the equipment performance, and helps to improve the production efficiency and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 is a perspective view of Embodiment 1 of the present invention;

[0025] Figure 2 is a schematic structural diagram of the main body of the present invention;

[0026] Figure 3 is a schematic structural diagram of the laser cutting head of the present invention;

[0027] Figure 4 is a schematic structural diagram of the limiting component of the present invention;

[0028] Figure 5 is a schematic structural diagram of the lifting component of the present invention;

[0029] Figure 6 is a schematic connection diagram of the sliding plate and the limiting plate of the present invention;

[0030] Figure 7 is a sectional view of the positioning plate of the present invention;

[0031] Figure 8 is a schematic structural diagram of the auxiliary frame of the present invention;

[0032] In the figure: 1, body;

[0033] 2, moving frame;

[0034] 3, sliding table;

[0035] 4, laser cutting head;

[0036] 5, reciprocating screw; 51, sliding rod; 52, sliding plate; 53, limiting plate; 531, tension spring; 532, auxiliary plate; 533, auxiliary rod; 54, rotating gear; 55, rack plate; 56, connecting plate;

[0037] 57, moving table; 571, top plate; 572, top column; 573, auxiliary roller; 574, fixed column; 575, bottom plate; 576, fixing hole; 577, inclined groove;

[0038] 6. Positioning plate; 61. Scraping plate; 62. Spring; 63. Auxiliary frame; 64. Guide groove; 65. Positioning hole; 66. Positioning cavity; 67. Telescopic rod; 68. Inclined plate. Detailed implementation manner

[0039] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0040] Example 1: As Figures 1 to 8 shown, a numerically controlled laser cutting machine for metal material processing described in an embodiment of the present invention includes a machine body 1, a moving frame 2 is fixedly connected above the machine body 1, a sliding table 3 is slidably connected to the upper surface of the moving frame 2, a laser cutting head 4 is arranged on one side of the sliding table 3, and the laser cutting head 4 moves with the sliding table 3 for moving cutting work. A limiting component is arranged on the upper surface of the machine body 1. The limiting component includes a reciprocating screw rod 5 rotatably arranged on the upper surface of the machine body 1. A sliding rod 51 is slidably connected to the circumferential surface of the reciprocating screw rod 5. A plurality of sliding plates 52 are arranged on the surface of the sliding rod 51, and the plurality of sliding plates 52 perform a limiting work on the metal plate; both ends of the reciprocating screw rod 5 are fixedly connected with rotating gears 54. One side of one of the rotating gears 54 is fixedly connected to the motor. A rack plate 55 is slidably connected to the position of the machine body 1 corresponding to each rotating gear 54. The rack plate 55 is used to trigger a lifting component for auxiliary blanking work; the lifting component includes a top plate 571 slidably arranged in the machine body 1. A plurality of top columns 572 are fixedly connected to the upper surface of the top plate 571, and the plurality of top columns 572 are used to jack up the cut metal plate.

[0041] Specifically, after the existing metal plate is placed on the upper surface of the machine body 1, it is not effectively fixed. When the laser cutting head 4 cuts, the machine body 1 will generate a certain vibration, and this vibration may cause the metal plate to move to a certain extent on the surface of the machine body 1, which will cause the cutting trajectory of the laser cutting head 4 to deviate during the cutting process, resulting in inconsistent cutting dimensions and the problem of cutting failure. In addition, during the cutting process, since it is a high-temperature cutting during the laser cutting process, the sputtered metal slag will adhere to the surface of the metal plate. If it is not cleaned in time, when the metal slag cools, it will be extremely firmly fixed on the surface of the metal plate, making it difficult to clean, affecting the quality of the metal plate, increasing the production workload, and resulting in the problem of low processing efficiency;

[0042] Therefore, the present invention solves the above problems by setting the above structure. First, when the device works, the motor or servo motor arranged on the surface of the body 1 can drive one of the rotating gears 54 to rotate, thereby driving the reciprocating screw 5 to rotate. Since the sliding rod 51 is slidably connected to the reciprocating screw 5, under the rotation of the reciprocating screw 5, the sliding rod 51 will perform a reciprocating motion along the axial direction of the reciprocating screw 5, and several sliding plates 52 on its surface will move accordingly, limiting the metal plate placed on the body 1 to ensure the stable position of the metal plate during cutting. The sliding table 3 on the moving frame 2 drives the laser cutting head 4 to move, realizing the moving cutting of the metal plate. After cutting, the rotating gears 54 at both ends of the reciprocating screw 5 rotate with it, pushing the rack plate 55 to move. The movement of the rack plate 55 triggers the lifting assembly, causing the top plate 571 slidably arranged in the body 1 to rise, and several ejector posts 572 on the upper surface of the top plate 571 lift the cut metal plate accordingly, completing the auxiliary blanking;

[0043] Through the reciprocating screw 5, the sliding rod 51 and the sliding plate 52 of the limiting assembly, the metal plate can be accurately and flexibly limited, ensuring the cutting accuracy and quality. Using the gear-rack transmission to trigger the lifting assembly to realize automatic auxiliary blanking greatly improves the production efficiency, reduces manual operation, and lowers the labor intensity and labor cost. At the same time, each component works together, making the entire cutting and blanking process closely connected, smooth and efficient, suitable for large-scale metal plate cutting production scenarios, and helping to improve the consistency and stability of product production.

[0044] As Figure 6 shown, the limiting assembly of this embodiment further includes a limiting plate 53 elastically arranged at one end of the sliding plate 52. Two tension springs 531 are fixedly connected to the upper surface of the limiting plate 53. The tops of the two tension springs 531 are fixedly connected to the same auxiliary plate 532. Two auxiliary rods 533 are fixedly connected to the lower surface of the auxiliary plate 532. The two auxiliary rods 533 penetrate through the sliding plate 52, and the bottoms of the two auxiliary rods 533 are fixedly connected to the same limiting plate 53. The limiting plate 53 is far from the sliding plate 52 in the initial state. When the motor is started to drive the reciprocating screw 5 to rotate, the sliding rod 51 drives several sliding plates 52 to gradually approach the metal plate to be cut. The limiting plate 53 abuts against the metal plate, and the metal plate pushes up the limiting plate 53 along the hypotenuse of the limiting plate 53. The limiting plate 53 pushes the auxiliary rod 533 to move upward, causing the tension spring 531 to undergo an elongation deformation for the limiting work.

[0045] Specifically, in the limiting component, the limiting plate 53 is elastically arranged at one end of the sliding plate 52 and is connected to the auxiliary plate 532 through a tension spring 531 and an auxiliary rod 533. In the initial state, the limiting plate 53 is away from the sliding plate 52. When the motor is started to drive the reciprocating screw 5 to rotate, the sliding rod 51 drives a plurality of sliding plates 52 to move towards the metal plate to be cut. As the sliding plate 52 approaches, the limiting plate 53 first contacts the metal plate. Since the limiting plate 53 has a bevel edge, the metal plate will generate an upward pushing force on the limiting plate 53. Under the action of the pushing force, the limiting plate 53 pushes the auxiliary rod 533 upward, which will cause the tension spring 531 connected between the auxiliary plate 532 and the limiting plate 53 to undergo an elongation deformation. The elongation of the tension spring 531 generates an elastic force, which in turn tightly presses against the metal plate, forming a stable limiting effect on the metal plate. After the cutting is completed, the sliding plate 52 moves away from the metal plate, and the elastic force of the tension spring 531 will automatically reset the limiting plate 53 to the initial state, waiting for the next limiting operation;

[0046] By utilizing the elastic characteristics of the tension spring 531, the limiting plate 53 can adapt to metal plates of different thicknesses and shapes, realizing precise and flexible limiting. During the process of the metal plate pushing the limiting plate 53, the elastic force of the tension spring 531 gradually increases, ensuring stable limiting, effectively preventing the metal plate from shifting during cutting, improving the cutting accuracy. At the same time, the reset function makes the equipment operation more convenient and efficient, reducing the time and energy for manual adjustment of the limiting device, improving the overall production efficiency, and being applicable to various metal plate cutting scenarios, with good versatility and practicality.

[0047] As Figure 2 shown, in this embodiment, two groups of sliding plates 52 are provided. One group is fixedly arranged on one side of the machine body 1, and the other group is driven to slide through the sliding rod 51. The corresponding metal plate cutting limiting work is carried out through the two groups of limiting plates 53.

[0048] Specifically, through the two - group setting of the sliding plates 52 in the equipment, one group is fixed on one side of the machine body 1 with a fixed position; the other group is driven by the sliding rod 51 and can move flexibly. When the metal plate is placed on the machine body 1, the sliding rod 51 drives the movable sliding plate 52 to approach the metal plate, cooperating with the limiting plate 53 on the fixed sliding plate 52. The two groups of limiting plates 53 correspond to the edges of the metal plate from different directions, forming a clamping trend, and jointly carrying out precise limiting on the cutting position of the metal plate to ensure stable cutting.

[0049] As Figure 5As shown in the figure, the lifting component of this embodiment includes a connecting plate 56 fixedly connected to the lower surface of the rack plate 55. One end of the connecting plate 56 away from the rack plate 55 is fixedly connected with a moving platform 57. The cross-section of the moving platform 57 is a right trapezoid. A bottom plate 575 is fixedly connected inside the machine body 1. A fixing hole 576 is formed on the surface of the bottom plate 575. A fixing column 574 is inserted into the fixing hole 576. The tops of a plurality of fixing columns 574 are fixedly connected to the same top plate 571. The top plate 571 jacks up the metal plate through a jacking column 572.

[0050] Specifically, when the metal plate is cut, at this time, the reciprocating screw 5 is driven by the motor, and the reciprocating screw 5 drives one group of limit plates 53 to release the limit on the metal plate. When the rotating gear 54 drives the limit plate 53 away from the metal plate, the rack plates 55 on both sides drive the corresponding moving platforms 57 to approach the top plate 571. The top plate 571 rises along the inclined groove 577 formed on one side of the moving platform 57. During the rising process of the top plate 571, the fixing column 574 on its lower surface slides along the fixing hole 576 formed on the bottom plate 575.

[0051] By driving the reciprocating screw 5 with the motor to release the limit of one group of limit plates 53, and cooperating with the linkage of the rotating gear 54 and the rack plate 55, the moving platform 57 is made to approach the top plate 571 and drive the top plate 571 to rise along the inclined groove 577, so that the fixing column 574 on the lower surface of the top plate 571 slides in the fixing hole 576 of the bottom plate 575, realizing the precise linkage and stable operation of the blanking action. The whole process has a high degree of automation, can quickly and orderly complete the blanking of the metal plate after cutting, reduce manual intervention, improve production efficiency and safety, and reduce labor and time costs.

[0052] As Figure 5 shown, auxiliary rollers 573 are rotatably arranged at both ends of the top plate 571 of this embodiment. The auxiliary rollers 573 are used to assist the top plate 571 to slide along the inclined surface of the moving platform 57.

[0053] Specifically, rotatable auxiliary rollers 573 are arranged at both ends of the top plate 571. When the rack plates 55 on both sides drive the moving platform 57 to approach the top plate 571, prompting the top plate 571 to slide and rise along the inclined surface of the moving platform 57, the auxiliary rollers 573 are in direct contact with the inclined surface of the moving platform 57. As the top plate 571 moves, the auxiliary rollers 573 start to rotate under the action of the frictional force on the inclined surface, converting the sliding friction between the top plate 571 and the inclined surface into rolling friction, enabling the top plate 571 to smoothly and steadily slide upward along the inclined surface of the moving platform 57 to complete the action of jacking up the metal plate.

[0054] The rolling friction method significantly reduces the friction between the top plate 571 and the inclined surface of the moving table 57, reduces energy loss, makes the sliding of the top plate 571 more labor-saving and efficient, ensures a quick response to the blanking action. At the same time, it effectively avoids equipment wear caused by excessive friction, extends the service life of the equipment, reduces the noise during equipment operation, and improves the comfort of the production environment.

[0055] Embodiment 2: As Figures 1 to 8 shown, compared with Embodiment 1, another implementation manner of the present invention is: a positioning plate 6 is fixedly connected to one side of the sliding table 3, a scraper 61 is elastically connected inside the positioning plate 6, and the scraper 61 is used to scrape the metal slag sputtered on the surface of the metal plate during the cutting process. A support frame 63 is fixedly connected to one side of the positioning plate 6, a positioning hole 65 is opened on the upper surface of the support frame 63, and the laser cutting head 4 passes through the positioning hole 65 for cutting work. The support frame 63 is used to cover the laser cutting head 4 for the protection work of the laser cutting head 4. A positioning cavity 66 is opened inside the positioning plate 6, and several springs 62 are fixedly connected to the inner wall of the positioning cavity 66. The bottom ends of the several springs 62 are fixedly connected to the same scraper 61, and a metal inclined plate 68 is fixedly connected to the bottom end of the scraper 61. The metal inclined plate 68 is used to scrape and guide the metal slag. An expansion rod 67 is fixedly connected to the inside of each spring 62, and the expansion rod 67 is used for limiting the spring 62.

[0056] Specifically, during cutting, the laser cutting head 4 passes through the positioning hole 65 on the upper surface of the support frame 63 and operates on the metal plate under the protection of the support frame 63. The positioning plate 6 is fixed to one side of the sliding table 3. Inside its positioning cavity 66, several springs 62 are connected to the scraper 61, and the expansion rod 67 in the spring 62 limits the spring 62. The metal inclined plate 68 at the bottom end of the scraper 61 contacts the metal plate as the sliding table 3 moves. The metal slag sputtered during cutting adheres to the surface of the metal plate. The metal inclined plate 68 closely adheres to the metal plate under the elastic force of the spring 62, scrapes the metal slag and guides it to a suitable position. At the same time, the support frame 63 always covers the laser cutting head 4 to prevent the debris, sparks, etc. generated during cutting from directly splashing onto the cutting head and avoid damaging it;

[0057] The metal inclined plate 68 cooperates with the spring 62 and the expansion rod 67 to adapt to the undulation of the metal plate surface, efficiently scrape the metal slag, ensure the cutting quality and subsequent processing of the metal plate. The support frame 63 effectively protects the laser cutting head 4, reduces the equipment failure rate, extends the service life of the cutting head, reduces the maintenance cost. The overall structure is compact and reasonable, which not only improves the reliability and stability of the cutting operation, but also ensures the equipment performance, and helps to improve the production efficiency and economic benefits.

[0058] As Figure 8 shown, a "Z"-shaped guiding groove 64 is opened inside the support frame 63 of this embodiment, and the guiding groove 64 is used to guide the high-temperature gas generated inside the support frame 63 during the cutting process.

[0059] Specifically, during the laser cutting process, the auxiliary frame 63 covers the laser cutting head 4. High-temperature gas generated by cutting accumulates inside the auxiliary frame 63. At this time, the "z"-shaped guiding groove 64 opened inside the auxiliary frame 63 comes into play. Affected by the thermal expansion of the high-temperature gas and air flow, the high-temperature gas will flow along the specific path of the "z"-shaped guiding groove 64. The "z" shape prolongs the gas flow path, increases the contact time between the gas and the wall surface of the guiding groove 64, and guides the gas to be discharged from the auxiliary frame 63 in an orderly manner;

[0060] It avoids the disorderly accumulation of gas inside the auxiliary frame 63 and the sudden increase in pressure, reduces the risk of thermal damage to the cutting head and other components inside the auxiliary frame 63 caused by high temperature, and ensures the stable operation of the equipment. At the same time, the orderly gas discharge can reduce the situation where spatter adheres to the cutting head due to air flow disorder, prolong the service life of the cutting head, and improve the cutting accuracy and quality.

[0061] Regarding the working principle, first, when the equipment is working, the motor or servo motor set on the surface of the machine body 1 can drive one of the rotating gears 54 to rotate, and then drive the reciprocating screw 5 to rotate. Since the sliding rod 51 is slidably connected to the reciprocating screw 5, under the rotation of the reciprocating screw 5, the sliding rod 51 will make a reciprocating motion along the axial direction of the reciprocating screw 5, and several sliding plates 52 on its surface will move accordingly to limit the metal plate placed on the machine body 1, ensuring the stable position of the metal plate during cutting. The sliding table 3 on the moving frame 2 drives the laser cutting head 4 to move, realizing the moving cutting of the metal plate. After cutting, the rotating gears 54 at both ends of the reciprocating screw 5 rotate with it, pushing the rack plate 55 to move. The movement of the rack plate 55 triggers the lifting component, causing the top plate 571 slidably arranged inside the machine body 1 to rise, and several ejector posts 572 on the upper surface of the top plate 571 will lift the cut metal plate accordingly, completing the auxiliary blanking;

[0062] Through the reciprocating screw 5, sliding rod 51 and sliding plate 52 of the limiting component, the metal plate can be accurately and flexibly limited, ensuring the cutting accuracy and quality. Using the gear-rack transmission to trigger the lifting component to realize automatic auxiliary blanking greatly improves the production efficiency, reduces manual operation, and lowers the labor intensity and labor cost. At the same time, each component works together, making the entire cutting and blanking process closely connected, smooth and efficient, suitable for large-scale metal plate cutting production scenarios, and helping to improve the consistency and stability of product production;

[0063] Specifically, in the limiting component, the limiting plate 53 is elastically arranged at one end of the sliding plate 52 and is connected to the auxiliary plate 532 through a tension spring 531 and an auxiliary rod 533. In the initial state, the limiting plate 53 is far away from the sliding plate 52. When the motor is started to drive the reciprocating screw 5 to rotate, the sliding rod 51 drives a plurality of sliding plates 52 to move towards the metal plate to be cut. As the sliding plate 52 approaches, the limiting plate 53 first contacts the metal plate. Since the limiting plate 53 has an inclined edge, the metal plate will generate an upward pushing force on the limiting plate 53. Under the action of the pushing force, the limiting plate 53 pushes the auxiliary rod 533 to move upward, which will cause the tension spring 531 connected between the auxiliary plate 532 and the limiting plate 53 to undergo an elongation deformation. The elongation of the tension spring 531 generates an elastic force, which in turn tightly presses against the metal plate to form a stable limiting effect on the metal plate. After the cutting is completed, the sliding plate 52 moves away from the metal plate, and the elastic force of the tension spring 531 will cause the limiting plate 53 to automatically reset to the initial state and wait for the next limiting operation;

[0064] By utilizing the elastic characteristics of the tension spring 531, the limiting plate 53 can adapt to metal plates of different thicknesses and shapes, realizing precise and flexible limiting. During the process of the metal plate pushing the limiting plate 53, the elastic force of the tension spring 531 gradually increases to ensure stable limiting, effectively preventing the metal plate from shifting during cutting and improving the cutting accuracy. At the same time, the reset function makes the operation of the equipment more convenient and efficient, reducing the time and energy for manual adjustment of the limiting device and improving the overall production efficiency. It is applicable to various metal plate cutting scenarios and has good versatility and practicality;

[0065] When the metal plate is cut, at this time, the motor drives the reciprocating screw 5, and the reciprocating screw 5 then drives one group of limiting plates 53 to release the limitation on the metal plate. When the rotating gear 54 drives the limiting plate 53 away from the metal plate, the rack plates 55 on both sides drive the corresponding moving platforms 57 to approach the top plate 571, and the top plate 571 rises along the inclined groove 577 opened on one side of the moving platform 57. During the rising process of the top plate 571, the fixed column 574 on its lower surface slides along the fixed hole 576 opened on the bottom plate 575;

[0066] By driving the reciprocating screw 5 by the motor to release the limitation of one group of limiting plates 53, and cooperating with the linkage of the rotating gear 54 and the rack plate 55, the moving platform 57 approaches the top plate 571 and drives the top plate 571 to rise along the inclined groove 577, enabling the fixed column 574 on the lower surface of the top plate 571 to slide in the fixed hole 576 of the bottom plate 575, realizing the precise linkage and stable operation of the blanking action. The whole process has a high degree of automation, can quickly and orderly complete the blanking of the cut metal plate, reduce manual intervention, improve production efficiency and safety, and reduce labor and time costs;

[0067] During additional cutting, the laser cutting head 4 passes through the positioning hole 65 on the upper surface of the auxiliary frame 63 and operates on the metal plate under the protection of the auxiliary frame 63. The positioning plate 6 is fixed to one side of the sliding table 3. In its internal positioning cavity 66, several springs 62 are connected to the scraping plate 61. The telescopic rod 67 inside the spring 62 limits the spring 62. The metal inclined plate 68 at the bottom of the scraping plate 61 moves with the sliding table 3 and contacts the metal plate. The metal slag sputtered during cutting adheres to the surface of the metal plate. The metal inclined plate 68 closely adheres to the metal plate under the elastic force of the spring 62, scrapes off the metal slag and guides it to a suitable position. At the same time, the auxiliary frame 63 always covers the laser cutting head 4, preventing the debris, sparks, etc. generated during cutting from directly splashing onto the cutting head and avoiding damage to it;

[0068] The metal inclined plate 68, in cooperation with the spring 62 and the telescopic rod 67, can adapt to the undulations of the metal plate surface, efficiently scrape off the metal slag, ensure the cutting quality and the subsequent processing of the metal plate. The auxiliary frame 63 effectively protects the laser cutting head 4, reduces the equipment failure rate, extends the service life of the cutting head, reduces the maintenance cost. The overall structure is compact and reasonable, which not only improves the reliability and stability of the cutting operation, but also ensures the equipment performance, and helps to improve the production efficiency and economic benefits.

[0069] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A numerically controlled laser cutting machine for metal material processing, comprising a machine body (1). Above the machine body (1), a moving frame (2) is fixedly connected. On the upper surface of the moving frame (2), a sliding table (3) is slidably connected. On one side of the sliding table (3), a laser cutting head (4) is provided. The laser cutting head (4) moves along with the sliding table (3) for moving cutting work, and it is characterized in that: On the upper surface of the machine body (1), a limiting component is provided. The limiting component includes a reciprocating screw rod (5) rotatably arranged on the upper surface of the machine body (1). On the circumferential surface of the reciprocating screw rod (5), a sliding rod (51) is slidably connected. On the surface of the sliding rod (51), a plurality of sliding plates (52) are provided. The plurality of sliding plates (52) perform a limiting work on the metal plate; The limiting component further includes a limiting plate (53) elastically arranged at one end of the sliding plate (52); At both ends of the reciprocating screw rod (5), rotating gears (54) are fixedly connected. On one side of one of the rotating gears (54), it is fixedly connected to a motor. At the position corresponding to each rotating gear (54) on the machine body (1), a rack plate (55) is slidably connected. The rack plate (55) is used to trigger a lifting component for assisting in blanking work; The lifting component includes a top plate (571) slidably arranged in the machine body (1). On the upper surface of the top plate (571), a plurality of top columns (572) are fixedly connected. The plurality of top columns (572) are used to jack up the metal plate to be cut; The lifting component includes a connecting plate (56) fixedly connected to the lower surface of the rack plate (55). At the end of the connecting plate (56) away from the rack plate (55), a moving table (57) is fixedly connected. The cross-section of the moving table (57) is in the shape of a right trapezoid. Inside the machine body (1), a bottom plate (575) is fixedly connected. On the surface of the bottom plate (575), a fixing hole (576) is opened. A fixing column (574) is inserted into the fixing hole (576). At the top ends of the plurality of fixing columns (574), the same top plate (571) is fixedly connected. The top plate (571) jacks up the metal plate through the top columns (572).

2. The numerically controlled laser cutting machine for metal material processing according to claim 1, wherein: On the upper surface of the limiting plate (53), two tension springs (531) are fixedly connected. At the top ends of the two tension springs (531), the same auxiliary plate (532) is fixedly connected. On the lower surface of the auxiliary plate (532), two auxiliary rods (533) are fixedly connected. The two auxiliary rods (533) penetrate through the sliding plate (52). At the bottom ends of the two auxiliary rods (533), the same limiting plate (53) is fixedly connected.

3. The numerically controlled laser cutting machine for metal material processing according to claim 2, characterized in that: The limiting plate (53) is away from the sliding plate (52) in the initial state. When the motor is started to drive the reciprocating screw rod (5) to rotate, the sliding rod (51) drives the plurality of sliding plates (52) to gradually approach the metal plate to be cut. The limiting plate (53) abuts against the metal plate. The metal plate jacks up the limiting plate (53) along the hypotenuse of the limiting plate (53). The limiting plate (53) pushes the auxiliary rod (533) to move upward, causing the tension spring (531) to undergo an elongation deformation for limiting work.

4. The numerically controlled laser cutting machine for metal material processing according to claim 3, wherein: There are two sets of the sliding plates (52). One set is fixedly arranged on one side of the machine body (1), and the other set is driven to slide through a sliding rod (51). The corresponding metal plate cutting is limited by two sets of limiting plates (53).

5. A numerically controlled laser cutting machine for metal material processing according to claim 1, characterized in that: When the metal plate cutting is completed, at this time, the reciprocating screw rod (5) is driven by a motor, and the reciprocating screw rod (5) drives one set of limiting plates (53) to release the limitation on the metal plate. When the rotating gear (54) drives the limiting plate (53) away from the metal plate, the rack plates (55) on both sides drive the corresponding moving platforms (57) to approach the top plate (571), and the top plate (571) rises along the inclined groove (577) opened on one side of the moving platform (57). During the rising process of the top plate (571), the fixing columns (574) on its lower surface slide along the fixing holes (576) opened on the bottom plate (575).

6. The numerically controlled laser cutting machine for metal material processing according to claim 5, wherein: Auxiliary rollers (573) are rotatably arranged at both ends of the top plate (571), and the auxiliary rollers (573) are used to assist the top plate (571) to slide along the inclined surface of the moving platform (57).

7. A numerically controlled laser cutting machine for metal material processing according to claim 1, characterized in that: A positioning plate (6) is fixedly connected to one side of the sliding table (3). A scraping plate (61) is elastically connected inside the positioning plate (6). The scraping plate (61) is used to scrape the metal slag sputtered on the surface of the metal plate during cutting. An auxiliary frame (63) is fixedly connected to one side of the positioning plate (6). A positioning hole (65) is opened on the upper surface of the auxiliary frame (63). The laser cutting head (4) penetrates through the positioning hole (65) to perform cutting work. The auxiliary frame (63) is used to cover the laser cutting head (4) to protect the laser cutting head (4).

8. A numerically controlled laser cutting machine for metal material processing according to claim 7, characterized in that: A positioning cavity (66) is opened inside the positioning plate (6). A plurality of springs (62) are fixedly connected to the inner wall of the positioning cavity (66). The bottom ends of the plurality of springs (62) are fixedly connected to the same scraping plate (61). A metal inclined plate (68) is fixedly connected to the bottom end of the scraping plate (61). The metal inclined plate (68) is used to scrape and guide the metal slag. An expansion rod (67) is fixedly connected inside each spring (62), and the expansion rod (67) is used to limit the spring (62).

9. A numerically controlled laser cutting machine for metal material processing according to claim 7, characterized in that: A "z”-shaped guiding groove (64) is opened inside the auxiliary frame (63), and the guiding groove (64) is used to guide the high-temperature gas generated inside the auxiliary frame (63) during cutting.

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