Laser cutting machine table and laser cutting machine

Abstract

The utility model discloses a laser cutting machine mesa and laser cutting machine belongs to laser processing equipment field. Its technical scheme is, a kind of laser cutting machine mesa, including mesa main part, multiple knife strips are equipped in the mesa main part, multiple turnover shafts are also equipped in the mesa main part, multiple cow eye wheels are equipped in the periphery of the turnover shaft, and cow eye wheel is located in the gap between adjacent knife strips;Multiple pressing mechanisms are also equipped at the edge of the mesa main part, the pressing mechanism can act along vertical direction, and the action end of pressing mechanism is at least partially within the width of mesa main part. Turnover shaft drives cow eye wheel to overturn, and cow eye wheel is higher than knife strip when feeding, avoid board surface to scratch, reduce feeding resistance simultaneously. When cutting, cow eye wheel is withdrawn to below knife strip, and board is stably dropped on knife strip, and cooperate the pressing mechanism of edge, and board can be firmly pressed, avoid the board air float, shaking problem caused by high-pressure cutting gas, effectively improve the section quality of board cutting.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment, and in particular to a laser cutting machine table and a laser cutting machine. Background Technology

[0002] Laser cutting is the mainstream process in sheet metal processing. During operation, the sheet metal is usually placed on a blade support structure for cutting. Its processing accuracy and surface quality directly affect the subsequent use of the sheet metal and are important indicators for measuring the level of sheet metal processing. Especially in thin sheet processing scenarios, the quality requirements for the cut surface and cut face are more stringent.

[0003] In the actual laser cutting process, the plate needs to be slid between the blades during the loading stage. The cutting stage relies on high-pressure cutting gas in conjunction with the laser beam to cut the plate. As the core supporting component of the plate, the assembly and processing accuracy of the blades directly affect the cutting state of the plate. The loading method, support state, and cutting airflow all affect the final quality of laser cutting.

[0004] When processing thin plates, the precision of the cutting and assembly of the cutting blades can easily lead to tiny gaps between the plate and the blade surface. In addition, the high-pressure cutting gas can easily cause the plate to float. Due to its low rigidity, the thin plate is more prone to floating and shaking, which can result in quality defects such as burrs and ripples on the cut surface. In severe cases, the floating of the plate can even damage the core components of the equipment. At the same time, the static friction between the plate and the cutting blade is relatively large when the plate is being fed, which not only makes manual feeding difficult and laborious, but also causes scratches on the plate surface, resulting in irreversible quality defects and significantly reducing the yield of the processed plate. Utility Model Content

[0005] This invention addresses the problems of easy scratching and susceptibility to air flotation during thin plate processing by providing a laser cutting machine table.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: a laser cutting machine table, including a table body, in which multiple blades are provided, and multiple rotating shafts are also provided. The rotating shafts are connected to a rotating drive mechanism. Multiple bullseye wheels are provided on the outer periphery of the rotating shafts, and the multiple bullseye wheels are located in the same circumferential position of the rotating shafts. In the vertical projection of the table body, the bullseye wheels are located in the gap between adjacent blades, and when the rotating shaft rotates to a set position, the highest point of the bullseye wheel is higher than the upper end of the blade. Multiple clamping mechanisms are also provided at the edge of the table body. The clamping mechanisms can move in the vertical direction, and the moving end of the clamping mechanism is at least partially located within the width of the table body. The rotating shaft drives the bullseye wheel to rotate, enabling the switching between feeding and cutting modes. During feeding, the bullseye wheel extends above the blade, converting the static friction between the sheet and the blade into rolling friction with the bullseye wheel, preventing scratches on the sheet surface and reducing feeding resistance, making manual loading and unloading easier. During cutting, the bullseye wheel retracts below the blade, and the sheet falls smoothly onto the blade. The edge clamping mechanism firmly presses the sheet together, eliminating tiny gaps between the sheet and the blade, preventing sheet float and shaking caused by high-pressure cutting gas, effectively improving the cut surface quality of the sheet, preventing damage to the core components of the equipment due to sheet float, and balancing sheet surface protection and cutting stability.

[0007] As a preferred implementation of a laser cutting machine table, multiple blades are grouped together, with the flipping shaft parallel to the length direction of the blades and positioned between adjacent blade groups. This grouping of blades and placement of the flipping shaft between the blade groups ensures uniform support of the material by the blades while allowing the bullseye wheels to avoid the blade support area, preventing interference between the bullseye wheels and blades during flipping. Furthermore, the parallelism of the flipping shaft to the blade length direction ensures uniform support from the bullseye wheels along the material conveying direction, guaranteeing smooth sliding of the material during loading and preventing skewing or jamming.

[0008] As a preferred solution for laser cutting machine table design, the spacing between adjacent blade groups is greater than the spacing between adjacent blades within a blade group. This larger spacing between blade groups provides ample installation and movement space for the tilting shaft, bullseye wheel, and tilting drive mechanism, preventing collisions and interference between the mechanism and the blades during operation. Simultaneously, the smaller spacing within the blade groups ensures sufficient support density for the sheet metal, preventing deformation of thin sheets due to insufficient support, thus balancing the adaptability of the mechanism installation with the stability of the sheet metal support.

[0009] As a preferred embodiment of a laser cutting machine table, the flipping drive mechanism includes multiple sprockets, with an even number of sprockets. A chain is mounted around every two sprockets. The flipping shaft is installed at the center of each sprocket. A drive device is connected to the chain or the sprocket, and the drive device can drive the sprockets to rotate. The even number of sprockets and the chain form a transmission structure, enabling synchronous linkage of multiple flipping shafts. This ensures that all bullseye wheels flip in a consistent manner, resulting in uniform force distribution during material loading and a horizontal placement onto the blade after flipping. The sprocket and chain transmission method provides smooth transmission, high torque, and precise rotation of the flipping shaft, achieving accurate positioning of the bullseye wheels during lifting and retraction. Furthermore, the structure is simple, has a low failure rate, and is easy to maintain.

[0010] As a preferred implementation of a laser cutting machine table, the driving device is a first telescopic cylinder, which is horizontally arranged, with the cylinder rod end fixedly connected to the straight section of the chain. Using the first telescopic cylinder as the driving source provides fast response and precise action. The linear extension and retraction of the cylinder rod drives the chain, which in turn converts into the rotational motion of the sprocket, achieving the flipping control of the flipping shaft. This eliminates the need for complex transmission conversion structures, simplifying the overall mechanism design. The horizontal arrangement of the cylinder fits snugly into the installation space of the table body, making reasonable use of lateral space without occupying the effective vertical processing space of the table, thus adapting to the working layout of laser cutting.

[0011] As a preferred embodiment of a laser cutting machine table, the table body also includes multiple guide rails, each corresponding to a plurality of first telescopic cylinders. A movable plate is mounted on the end of the cylinder rod of each first telescopic cylinder, and the movable plate is slidably mounted on the corresponding guide rail. The side edge of the movable plate is fixedly connected to the chain. The guide rails provide precise guidance for the movable plate, ensuring that the movable plate moves in a straight line when the first telescopic cylinder rod extends or retracts, preventing chain jamming or derailment due to force deviation, and improving the stability of the sprocket and chain transmission. The movable plate increases the contact area between the cylinder rod and the chain, allowing the driving force of the cylinder to be evenly transmitted to the chain, preventing excessive local force that could cause chain wear, and extending the service life of the transmission components.

[0012] As a preferred embodiment of a laser cutting machine table, the clamping mechanism includes a second telescopic cylinder. The cylinder body of the second telescopic cylinder is fixedly installed on the side of the table body, and the cylinder rod of the second telescopic cylinder is vertically upward. A pressure head is fixedly installed at the upper end of the cylinder rod, and one end of the pressure head extends to the top of the table body. The vertical arrangement of the second telescopic cylinder enables precise up-and-down movement of the pressure head. During cutting, the cylinder rod extends and drives the pressure head downward to clamp the plate, effectively fixing the position of the plate, eliminating the gap between the plate and the blade, and suppressing the air float effect and plate wobbling. The cylinder body is located on the side of the table body, which does not occupy the processing area of ​​the table and avoids interference with the movement of the laser cutting head. The pressure head extends to the top of the table, which can accurately act on the edge of the plate, and the clamping effect is reliable and does not damage the cutting area of ​​the plate.

[0013] As a preferred embodiment of a laser cutting machine table, a limiting plate is provided at the end of the pressure head away from the main body of the table. The lower part of the limiting plate is in contact with the outer plane of the cylinder body of the second telescopic cylinder. The contact between the limiting plate and the cylinder body plane can circumferentially limit the movement of the pressure head, preventing the pressure head from shifting due to the rotation of the cylinder rod.

[0014] As a preferred implementation of a laser cutting machine table, a connecting plate is also installed on the cylinder body of the second telescopic cylinder. The connecting plate has an elongated hole extending vertically, and the connecting plate connects to the main body of the table through this hole. The vertical elongated hole on the connecting plate provides vertical height adjustment space for the second telescopic cylinder, allowing for precise adjustment of the initial clamping position of the pressure head according to the thickness of the sheet material, adapting to the clamping requirements of sheets of different thicknesses and improving the versatility of the device. Simultaneously, the elongated hole connection facilitates the installation, debugging, and subsequent fine-tuning of the cylinder's position, reducing assembly and maintenance difficulty.

[0015] On the other hand, this utility model also provides a laser cutting machine that adopts the laser cutting machine table described above. Integrating the aforementioned laser cutting machine table enables the laser cutting machine to combine convenient loading operations with high-precision cutting performance, effectively solving industry pain points such as scratches during sheet material loading and air-bearing wobbling during thin sheet cutting. This significantly improves the surface quality and cutting accuracy of the sheet material, reducing the defect rate of finished products. Simultaneously, the table's compact design, precise movements, and strong versatility allow it to adapt to the processing needs of sheets of different specifications and thicknesses. Furthermore, its low structural failure rate and convenient maintenance enhance the overall operating efficiency and lifespan of the laser cutting machine, meeting the needs of large-scale sheet laser cutting production.

[0016] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows: This solution achieves the switching between feeding and cutting states through the flipping structure of the flipping shaft and the bullseye wheel. During feeding, the bullseye wheel is higher than the blade, converting static friction into rolling friction, avoiding scratches on the sheet metal and reducing feeding resistance. During cutting, the bullseye wheel retracts, working with the clamping mechanism to firmly clamp the sheet metal, eliminating gaps between the sheet metal and the blade, avoiding air flotation and shaking problems caused by high-pressure gas, improving the quality of the cut surface, preventing damage to equipment components, and balancing sheet metal protection and cutting stability. The blades are arranged in groups, with the flipping shaft located between the blade groups and parallel to the blades. The spacing between blade groups is greater than the spacing within the groups, ensuring the density of sheet metal support, preventing deformation of thin sheets, and reserving installation and movement space for the flipping mechanism to avoid interference. At the same time, the bullseye wheel can evenly support the sheet metal, ensuring smooth and non-skewed feeding. The flipping drive mechanism employs an even-numbered sprocket and chain transmission structure to achieve synchronous linkage of the flipping shaft, ensuring consistent bullseye wheel movement, smooth transmission, high torque, and precise positioning. The structure is simple and easy to maintain. A horizontally arranged first telescopic cylinder serves as the drive source, offering fast response and accurate action. The direct-drive chain simplifies the mechanism design, making efficient use of lateral space. The accompanying guide rails and moving plate guide the cylinder rod, preventing chain jamming and derailment, while increasing the contact area for even force transmission, reducing chain wear and extending component life. The second telescopic cylinder of the clamping mechanism is vertically arranged on the side of the table, not occupying processing space or interfering with the cutting head. The clamping head precisely clamps the edge of the sheet metal, suppressing the air-floating effect. The clamping head limiting plate provides circumferential limiting to prevent clamping head deviation. The vertical elongated hole in the cylinder connecting plate allows for cylinder height adjustment, accommodating clamping requirements for sheets of different thicknesses, improving versatility, and facilitating cylinder assembly, adjustment, and maintenance. The laser cutting machine with integrated tabletop combines convenient feeding with high-precision cutting performance, solving the problems of scratches during sheet feeding and air floating and shaking during thin sheet cutting. It improves the cutting quality and accuracy of sheet materials, reduces the defect rate, and features a compact, precise, and highly versatile tabletop structure that can be used to process sheets of different specifications and thicknesses. It has a low failure rate, is easy to maintain, and can improve the operating efficiency and service life of the cutting machine, meeting the needs of large-scale laser cutting production. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this patent, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this patent. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the present invention in the bullseye wheel storage state according to a specific embodiment.

[0020] Figure 3 This is a schematic diagram of the pressing mechanism in a specific embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the drive device in a specific embodiment of the present invention.

[0022] Explanation of main figure symbols

[0023] 1. Tabletop body, 2. Blade bar, 3. Flip shaft, 4. Bullseye wheel, 5. Pressing mechanism, 6. Sprocket, 7. Chain, 8. First telescopic cylinder, 9. Second telescopic cylinder, 10. Press head, 11. Limiting plate, 12. Connecting plate, 13. Long hole, 14. Guide rail, 15. Moving plate. Detailed Implementation

[0024] To make the objectives, features, and advantages of this patent more apparent and understandable, the technical solutions of this patent will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this patent, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0025] Example 1

[0026] like Figure 1 , 2 As shown, the laser cutting machine table includes a table body 1. Multiple blades 2 are fixedly arranged at intervals within the table body 1. All blades 2 are arranged in groups, and the distance between adjacent blade groups is greater than the distance between adjacent blades 2 within the same blade group. The table body 1 also includes multiple rotating shafts 3. The length direction of the rotating shafts 3 is parallel to the length direction of the blades 2, and they are correspondingly positioned at the gaps between adjacent blade groups. Multiple bullseye wheels 4 are fixedly arranged at intervals on the same circumferential position around the outer periphery of the rotating shafts 3. In the vertical projection direction of the table body 1, all bullseye wheels 4 are located in the gaps between adjacent blades 2. When the equipment is in the feeding state, the flip shaft 3 rotates around its own axis to the set position, and the highest point of the bullseye wheel 4 is higher than the upper end face of the blade 2, which facilitates the feeding of the board. After the feeding is completed, the flip shaft 3 rotates in the opposite direction, and the bullseye wheel 4 retracts to below the lower end face of the blade 2, and the board falls smoothly onto the blade 2. Multiple clamping mechanisms 5 are also installed at intervals along the edge of the table body 1. All clamping mechanisms 5 can extend and retract in the vertical direction, and the moving end of the clamping mechanism 5 extends at least partly into the processing area of ​​the table body 1. After the board is placed, the clamping mechanism 5 is activated, which can firmly clamp and fix the board on the table.

[0027] like Figure 4As shown, the flipping action of the flipping shaft 3 is driven by a flipping drive mechanism, which includes an even number of sprockets 6. A chain 7 is wrapped around every two sprockets 6. The end of the flipping shaft 3 is coaxially fixedly installed at the center of the sprockets 6. In this embodiment, a first telescopic cylinder 8 is selected as the driving device. It is horizontally arranged inside the platform body 1, and the cylinder body is fixedly connected to the platform body 1. At least one guide rail 14 is also fixedly installed inside the platform body 1 for each first telescopic cylinder 8. The end of the cylinder rod of the first telescopic cylinder 8 is fixedly installed... The system is equipped with a movable plate 15 that slides with the guide rail 14, and the side edge of the movable plate 15 is fixedly connected to the straight section of the chain 7. When feeding, the first telescopic cylinder 8 retracts, which drives the chain 7 to move through the movable plate 15, thereby driving the sprocket 6 to rotate synchronously, causing all the flipping shafts 3 to flip in the same direction and raise the bullseye wheel 4. When preparing for cutting, the first telescopic cylinder 8 extends, which drives the sprocket 6 to rotate in the opposite direction through the chain 7, and the flipping shafts 3 flip accordingly to retract the bullseye wheel 4. This transmission structure can realize the synchronous linkage of multiple flipping shafts 3, ensuring that the bullseye wheel 4 moves in a consistent manner.

[0028] like Figure 3 As shown, the clamping mechanism 5 includes a second telescopic cylinder 9. The cylinder body of the second telescopic cylinder 9 is fixedly installed on the outer wall of the table body 1 by fasteners. Its cylinder rod is arranged vertically upward, and a pressure head 10 is fixedly installed at the upper end of the cylinder rod. The end of the pressure head 10 away from the cylinder rod extends laterally to the top of the table body 1. After the bullseye wheel 4 retracts and the plate is placed, the cylinder rod of the second telescopic cylinder 9 moves downward, driving the pressure head 10 to clamp the edge of the plate. After the cutting is completed, the cylinder rod returns to its original position, and the pressure head 10 releases the plate. The end of the pressure head 10 away from the table body... One end of the cylinder 1 is integrally formed or fixedly installed with a limiting plate 11. The lower part of the limiting plate 11 is close to the outer plane of the cylinder body of the second telescopic cylinder 9, which can form a circumferential limit on the pressure head 10 to prevent it from rotating and deviating, and ensure the clamping accuracy. A connecting plate 12 is also fixedly installed on the cylinder body of the second telescopic cylinder 9. The connecting plate 12 has an elongated hole 13 extending in the vertical direction. The connecting plate 12 is connected to the table body 1 through fasteners passing through the elongated hole 13. The height of the second telescopic cylinder 9 can be finely adjusted according to the thickness of the plate to adapt to the clamping requirements of different specifications of plates.

[0029] Example 2

[0030] This embodiment further provides a laser cutting machine, which uses the laser cutting machine table described in Embodiment 1.

[0031] As can be seen from the above embodiments, the advantages of this utility model are:

[0032] This utility model relates to a laser cutting machine table and a matching laser cutting machine, effectively solving the problems of scratches during sheet material feeding and air buoyancy during thin sheet cutting. It also features convenient operation, processing stability, and versatility. The blades are arranged in groups, with parallel rotating shafts and bullseye wheels between groups. The large spacing between groups allows for movement space, while the small spacing within groups ensures the support density of the sheet material. The bullseye wheels rotate with the rotating shafts to switch states. During feeding, the wheels extend above the blades, converting static friction into rolling friction, preventing scratches on the sheet material and reducing feeding resistance. During cutting, the wheels retract, allowing the sheet material to fall smoothly onto the blades. Combined with the clamping mechanism, the sheet material is clamped, eliminating gaps between the blades, suppressing the air buoyancy effect, preventing sheet material wobbling, improving cutting accuracy, and preventing damage to equipment components.

[0033] The flipping drive mechanism is driven by an even number of sprockets and chains in conjunction with a horizontally arranged first telescopic cylinder. The cylinder rod extends and retracts, causing the moving plate to move along the guide rail, which in turn drives the sprockets and flipping shaft to flip, ensuring consistent movement of the bullseye wheels and uniform force on the plate. The guide rail and moving plate work together to prevent chain jamming, reduce wear, and extend component life. The second telescopic cylinder of the clamping mechanism is vertically located on the outer side of the table, without interfering with the cutting head. The clamping head precisely clamps the edge of the plate, and the limiting plate prevents the clamping head from shifting. The vertical elongated hole in the connecting plate allows for fine adjustment of the cylinder height to accommodate the clamping requirements of plates of different thicknesses.

[0034] The integrated laser cutting machine combines convenient feeding with high-precision cutting performance, reducing the defect rate of finished products. Its compact design and smooth operation, along with conventional connection and transmission methods, result in a low failure rate and convenient maintenance. It is suitable for cutting various specifications of sheet metal, improving equipment operating efficiency and service life, and is ideal for large-scale laser cutting production.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use this patent. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this patent. Therefore, this patent is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laser cutting machine table, comprising a table body (1), wherein the table body (1) is provided with a plurality of blades (2), characterized in that, The table body (1) is also provided with multiple rotating shafts (3), the rotating shafts (3) are connected to a rotating drive mechanism, the outer periphery of the rotating shafts (3) is provided with multiple bullseye wheels (4), the multiple bullseye wheels (4) are located in the same circumferential position of the rotating shafts (3), in the vertical projection of the table body (1), the bullseye wheels (4) are located in the gap between adjacent blades (2), and when the rotating shafts (3) rotate to the set position, the highest point of the bullseye wheels (4) is higher than the upper end of the blades (2); the edge of the table body (1) is also provided with multiple pressing mechanisms (5), the pressing mechanisms (5) can move in the vertical direction, and the moving end of the pressing mechanism (5) is at least partially located within the width of the table body (1).

2. The laser cutting machine table according to claim 1, characterized in that, Multiple blades (2) are arranged in groups, and the flipping shaft (3) is parallel to the length direction of the blades (2), and the flipping shaft (3) is arranged between adjacent blade groups.

3. The laser cutting machine table according to claim 2, characterized in that, The spacing between adjacent blade groups is greater than the spacing between adjacent blades (2) in a blade group.

4. The laser cutting machine table according to claim 1, characterized in that, The flipping drive mechanism includes multiple sprockets (6) and the number of sprockets (6) is even. A chain (7) is mounted around every two sprockets (6). The flipping shaft (3) is mounted at the center of the sprockets (6). The chain (7) or the sprockets (6) is connected to a drive device that can drive the sprockets (6) to rotate.

5. The laser cutting machine table according to claim 4, characterized in that, The driving device is a first telescopic cylinder (8), which is arranged horizontally, and the cylinder rod end of the first telescopic cylinder (8) is fixedly connected to the straight section of the chain (7).

6. The laser cutting machine table according to claim 5, characterized in that, The main body of the table (1) is also provided with multiple guide rails (14), and the multiple guide rails (14) are respectively arranged in correspondence with multiple first telescopic cylinders (8). The cylinder rod end of the first telescopic cylinder (8) is equipped with a movable plate (15), and the movable plate (15) is slidably installed on the corresponding guide rail (14). The side edge of the movable plate (15) is fixedly connected to the chain (7).

7. The laser cutting machine table according to any one of claims 1-6, characterized in that, The pressing mechanism (5) includes a second telescopic cylinder (9), the cylinder body of the second telescopic cylinder (9) is fixedly installed on the side of the table body (1), the cylinder rod of the second telescopic cylinder (9) is set vertically upward, and a pressure head (10) is fixedly installed on the upper end of the cylinder rod, one end of the pressure head (10) extends to the top of the table body (1).

8. The laser cutting machine table according to claim 7, characterized in that, A limiting plate (11) is provided at one end of the pressure head (10) away from the main body of the table (1), and the lower part of the limiting plate (11) is in contact with the outer plane of the cylinder body of the second telescopic cylinder (9).

9. The laser cutting machine table according to claim 7, characterized in that, The second telescopic cylinder (9) is also equipped with a connecting plate (12), and the connecting plate (12) has an elongated hole (13) extending in the vertical direction. The connecting plate (12) is connected to the table body (1) through the elongated hole (13).

10. A laser cutting machine, characterized in that, The laser cutting machine table as described in any one of claims 1-9 is used.

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