Aluminum veneer laser engraving machine with flatness detection correction function

Abstract

This invention provides a laser engraving machine for aluminum single-panel panels with flatness detection and correction functions, belonging to the field of aluminum single-panel processing technology. It solves the technical problems of existing clamping methods, such as the need for flatness adjustment during clamping and the tendency for clamping to cause deformation of the aluminum single-panel. This laser engraving machine for aluminum single-panel panels with flatness detection and correction functions includes a worktable, a frame fixed to the upper rear of the worktable, a body fixed to the upper side of the frame, a laser engraving mechanism mounted on the body, and a clamping mechanism on the upper side of the worktable. The clamping mechanism includes a clamping table with a clamping groove on its upper side, limit grooves on the left and right sides of the clamping groove, and an open front side of the limit groove. A coolant tank is fixed to the lower end of the clamping groove, and a piston plate is slidably connected inside the coolant tank. A mounting groove is also provided at the lower end of the clamping groove, and a lifting mechanism is installed inside the mounting groove. This invention has the advantages of improving the uniformity of engraving and ensuring the quality of engraving.

Description

Technical Field

[0001] This invention belongs to the field of aluminum single-panel processing technology, and relates to a laser engraving machine, particularly an aluminum single-panel laser engraving machine with flatness detection and correction function. Background Technology

[0002] Aluminum single-layer panels refer to building decoration materials that have undergone chromating and other treatments, followed by fluorocarbon spraying technology. In the process of use, people often use laser engraving machines to further process and use them. Laser engraving machines are advanced equipment that use lasers to engrave materials that need to be engraved, with higher engraving precision and faster engraving speed.

[0003] A search revealed a Chinese patent document disclosing a laser engraving machine for aluminum panels with a flatness detection mechanism [Application No.: 202222631064.4; Publication No.: CN218496083U]. This laser engraving machine includes a machine tool, a sliding frame slidably connected to the machine tool, a mounting plate installed at the bottom of a second threaded cylinder, a laser emitter installed at the bottom of a first cylinder, and a flatness tester installed at the bottom of the second cylinder. The machine tool is equipped with an engraving table via an adjustment mechanism. In this invention, a first motor drives a first lead screw to rotate, which in turn drives the first threaded cylinder to move, thereby moving the sliding frame back and forth. A second motor, through a second lead screw and a second threaded cylinder, can drive the flatness tester to move left and right. A second cylinder extends, causing the flatness tester to descend. This back-and-forth and left-and-right movement detects the flatness of the aluminum panel, and the detection data is transmitted to a controller for recording and analysis. This allows for assessment of whether the aluminum panel is placed flat, preventing uneven engraving caused by unevenness.

[0004] Although the flatness detection mechanism disclosed in the patent can detect and adjust the flatness of aluminum panels when they are placed, the device clamps the side of the aluminum panel. This clamping method not only requires flatness adjustment, but also easily causes the aluminum panel to deform under the clamping force, thus affecting the unevenness of the engraving. Summary of the Invention

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing an aluminum single-panel laser engraving machine with flatness detection and correction functions. The technical problem this invention aims to solve is: how to improve the uniformity of engraving and ensure the quality of engraving.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A laser engraving machine for aluminum single-panel panels with flatness detection and correction function includes a worktable. A frame is fixed to the upper rear part of the worktable, and a body is fixed to the upper part of the frame. A laser engraving mechanism is installed on the body. A clamping mechanism is installed on the upper part of the worktable. The clamping mechanism includes a clamping table with a clamping groove on the upper side. Limiting grooves are opened on the left and right sides of the clamping groove. The front side of the limiting groove is open. A coolant tank is fixed to the lower end of the clamping groove. A piston plate is slidably connected inside the coolant tank. An installation groove is opened at the lower end of the clamping groove. A lifting mechanism is installed inside the installation groove and is slidably connected to the piston plate. Several push rods are slidably connected to the upper end of the coolant tank. A limiting block is fixed to the lower end of the push rods. A top plate is fixed to the upper end of the push rods. A coolant cavity is opened inside the top plate. A cooling channel is opened inside the push rods. The coolant cavity communicates with the interior of the coolant tank through the cooling channel.

[0008] The working principle of this invention is as follows: During operation, the aluminum panel is inserted into the limiting groove through the front side of the limiting groove. Then, the lifting mechanism drives the piston plate to rise. Under the pressure of the coolant, the top plate moves upward, thereby causing the top plate to lift the aluminum panel. The upper edge of the aluminum panel abuts against the upper side of the mounting groove. Since the upper side of the mounting groove is a planar structure, the horizontality of the aluminum panel is guaranteed after it abuts against the upper side of the mounting groove. The multiple top plates not only provide support and abutment for the lower side of the aluminum panel, preventing deformation under gravity, but also adapt to different shapes of the lower side of the aluminum panel, meeting the clamping requirements of aluminum panels with different surface shapes and improving the practicality of the device. Under the principle of communicating vessels, the pressure applied by each top plate to the aluminum panel is guaranteed to be the same, preventing uneven force on the aluminum panel and greatly improving the flatness of the aluminum panel during clamping, improving the uniformity of engraving, and ensuring the quality of engraving.

[0009] The top plate has an installation groove on its upper side, and a heat-conducting plate is fixed inside the installation groove. The upper side of the heat-conducting plate is flush with the upper side of the top plate, and several heat-conducting rods are fixed on the lower side of the heat-conducting plate. The lower ends of the heat-conducting rods extend into the coolant cavity.

[0010] The above structure allows for heat conduction of the aluminum panel using heat-conducting plates and rods, and cooling using coolant. This prevents the temperature of the aluminum panel from affecting the accuracy of the engraving process. Additionally, after engraving, the aluminum panel remains at a low temperature, preventing burns to workers handling the panel and improving safety. In conjunction with the top plate and other structures, the coolant serves multiple purposes, greatly improving the compactness of the device and reducing operating costs.

[0011] Electric telescopic rods are fixed at the four upper corners of the clamping platform. Mounting seats are fixed at the upper ends of the electric telescopic rods. A first threaded rod is rotatably connected between the front and rear mounting seats. A drive motor is fixed on the rear mounting seat. The output shaft of the drive motor is fixedly connected to the first threaded rod. A movable seat is threaded onto the first threaded rod. A horizontal moving assembly is fixed between the two movable seats. A grinding motor is connected to the horizontal moving assembly. A grinding wheel is fixed on the output shaft of the grinding motor. A flatness tester is fixed on the housing of the grinding motor.

[0012] With the above structure, after the aluminum panel is clamped, a flatness tester can be used to further inspect the surface of the aluminum panel to prevent deformation caused by processing or transportation from affecting the flatness of the aluminum panel when it falls. If a problem with the flatness of the aluminum panel is detected, the grinding motor can be lowered by the electric telescopic rod so that the grinding wheel contacts the surface of the aluminum panel. At the same time, the drive motor drives the first threaded rod to rotate, so that the grinding wheel moves back and forth. The horizontal moving component drives the grinding wheel to move left and right, thereby improving the flatness of the aluminum panel by grinding it.

[0013] The lifting assembly includes a fixed cylinder, which is fixedly connected to the mounting groove. A lifting motor is fixedly installed at the lower end of the fixed cylinder. A second threaded rod is fixedly installed at the output shaft end of the lifting motor. A force limiting component is installed on the second threaded rod. The lifting cylinder is connected to the force limiting component. The upper end of the lifting cylinder extends into the coolant tank and is fixedly connected to the piston plate.

[0014] The force limiting component includes a threaded seat, which is threadedly connected to a second threaded rod. A force limiting seat is rotatably connected to the outer periphery of the threaded seat. The lower end of the lifting cylinder is fixedly connected to the force limiting seat. Several force limiting cavities are opened on the outer periphery of the threaded seat. A telescopic rod is fixed inside the force limiting cavity. An arc-shaped protrusion is fixed at the other end of the telescopic rod. A second spring is fixed between the arc-shaped protrusion and the force limiting cavity. An arc-shaped groove that mates with the arc-shaped protrusion is opened on the inner periphery of the force limiting seat. A limit plate is fixed at the upper end of the second threaded rod.

[0015] With the above structure, the second threaded rod can be rotated by the lifting motor, which in turn drives the threaded seat to rise. The threaded seat then drives the lifting cylinder to rise through the force limiting component, thereby causing the piston plate to rise and clamping the aluminum panel. When the clamping force between the top plate and the aluminum panel reaches a certain level, the horizontal squeezing force of the arc-shaped groove on the arc-shaped protrusion reaches its limit, causing the arc-shaped protrusion to detach from the arc-shaped groove. This allows the threaded seat to rotate with the second threaded rod, preventing excessive pressure from the top plate on the aluminum panel due to system failure or operational errors. This further reduces the factors that cause deformation due to excessive clamping force when clamping the aluminum panel, and further ensures the flatness of the aluminum panel.

[0016] The laser engraving mechanism includes a connecting plate, which is connected to a movable part on the machine body. A hydraulic cylinder is fixed to the lower side of the connecting plate, and a sealing plate is fixed to the lower end of the hydraulic cylinder. A laser head is fixed to the lower side of the sealing plate. Several telescopic columns are fixed to the lower side of the connecting plate, and a sealing cylinder is fixed to the lower end of the telescopic columns. The sealing plate is located inside the sealing cylinder, and a limit groove is opened inside the sealing cylinder. The sealing plate is slidably connected to the limit groove.

[0017] With the above structure, during operation, the hydraulic cylinder drives the laser head to descend, and the sealing cylinder descends under the action of the sealing plate, causing the telescopic column to extend. When the telescopic column extends to its limit position, the laser head continues to descend, allowing it to extend out of the sealing cylinder for normal engraving. After engraving is completed, the hydraulic cylinder drives the laser head to rise. When the telescopic column retracts to its limit position, the laser head continues to rise, allowing it to re-enter the sealing cylinder. This structure achieves automatic extension and retraction of the laser head without requiring additional operation, thus preventing the risk of workers being burned by accidentally touching the laser head after processing.

[0018] The sealing cylinder has a square structure. A fixed sealing seat with a U-shaped structure is fixed at the lower end of the sealing cylinder. Sliding cavities are opened on both the left and right sides of the sealing seat. A first spring is fixed inside the sliding cavity. A sliding sealing seat is fixed at the other end of the first spring. The sliding sealing seat is slidably connected to the sliding cavity.

[0019] A triangular seat is fixed on the upper side of the sliding sealing seat, and an avoidance groove is provided on the side of the triangular seat near the fixed sealing seat.

[0020] This structure allows the triangular seat to be compressed when the laser head extends out of the sealing cylinder, thus opening the sliding sealing seat. When the laser head retracts into the sealing cylinder, the sliding sealing seat automatically seals the cylinder under the action of the first spring, preventing external dust from contaminating the laser head and protecting it. The clearance groove ensures that the sliding sealing seat has sufficient room to move while the fixed sealing seat does not affect the movement of the triangular seat, and also ensures the sealing of the sliding cavity, preventing the diameter of the sealing cylinder from being too large and improving the compactness of the device.

[0021] The fixed sealing seat has a first cooling chamber with corresponding front and rear openings inside. The first cooling chamber is connected to the sliding cavity through a through hole. The sliding sealing seat has a second cooling chamber with a through hole. The front and rear sides and the top and bottom sides of the sliding sealing seat are sealed to the side walls of the sliding cavity. The first cooling chamber, the sliding cavity and the second cooling chamber are all filled with coolant.

[0022] With this structure, the laser head is square, and the front and rear side walls of the laser head abut against the inner front and rear sides of the fixed sealing seat, while the left and right side walls of the laser head abut against the sliding sealing seat. This allows the laser head to be cooled by the coolant in the first and second coolant chambers during operation, thereby reducing the temperature of the laser head during use and extending its service life.

[0023] Several telescopic protective covers are fixed between the sliding cavity and the sliding closed seat. Each telescopic protective cover corresponds to a first spring, and the first spring is located inside the telescopic protective cover.

[0024] By adopting the above structure, the first spring can be placed in a closed environment, which prevents the coolant from corroding the first spring and extends the service life of the first spring.

[0025] Compared with existing technologies, this aluminum single-panel laser engraving machine with flatness detection and correction function has the following advantages:

[0026] 1. During operation, the aluminum panel is inserted into the limiting groove through the front side. Then, the lifting mechanism drives the piston plate to rise. Under the pressure of the coolant, the top plate moves upward, thus lifting the aluminum panel. The upper edge of the aluminum panel abuts against the upper side of the mounting groove. Since the upper side of the mounting groove is a flat structure, the aluminum panel is perfectly level after contact with the upper side of the mounting groove. The multiple top plates not only provide support and contact for the lower side of the aluminum panel, preventing deformation under gravity, but also adapt to different shapes of the lower side of the aluminum panel, meeting the clamping requirements for aluminum panels with different surface shapes and improving the practicality of the device. Under the principle of communicating vessels, the pressure applied by each top plate to the aluminum panel is the same, preventing uneven force on the aluminum panel and greatly improving the flatness of the aluminum panel during clamping, improving the uniformity of engraving, and ensuring the quality of engraving.

[0027] 2. The setting of the grinding wheel and other structures allows for further surface inspection of the aluminum panel after it is clamped, using a flatness tester. This prevents deformation caused by processing or transportation from affecting the flatness of the aluminum panel upon drop. If a flatness problem is detected, the grinding motor can be lowered via an electric telescopic rod, causing the grinding wheel to contact the surface of the aluminum panel. Simultaneously, the drive motor rotates the first threaded rod, causing the grinding wheel to move back and forth. The horizontal moving component moves the grinding wheel left and right, thereby improving the flatness of the aluminum panel through grinding.

[0028] 3. The lifting assembly is designed so that the lifting motor drives the second threaded rod to rotate, which in turn drives the threaded seat to rise. The threaded seat, through a force-limiting component, drives the lifting cylinder to rise, thereby causing the piston plate to rise and clamp the aluminum panel. When the clamping force between the top plate and the aluminum panel reaches a certain level, the horizontal squeezing force of the arc-shaped groove on the arc-shaped protrusion reaches its limit, causing the arc-shaped protrusion to disengage from the arc-shaped groove. This allows the threaded seat to rotate with the second threaded rod, preventing excessive pressure from the top plate on the aluminum panel due to system malfunctions or operational errors. This further reduces the factors that cause deformation of the aluminum panel due to excessive clamping force, and further ensures the flatness of the aluminum panel.

[0029] 4. The structure of the sealing cylinder allows the laser head to descend during operation using a hydraulic cylinder. The sealing cylinder, driven by the sealing plate, descends, extending the telescopic column. Once the telescopic column reaches its limit, the laser head continues to descend, extending out of the sealing cylinder for normal engraving. After engraving, the hydraulic cylinder raises the laser head. When the telescopic column retracts to its limit, the laser head continues to rise, re-entering the sealing cylinder. This structure enables automatic extension and retraction of the laser head without additional operation, preventing the risk of burns from accidental contact with the laser head after processing.

[0030] 5. The structure of the fixed and sliding sealing seats not only seals the laser head when it is not in operation, thus preventing dust from contaminating it, but also allows the front and rear side walls of the laser head to abut against the inner front and rear sides of the fixed sealing seat, and the left and right side walls of the laser head to abut against the sliding sealing seat. This allows the laser head to be cooled by the coolant in the first and second cooling chambers during operation, reducing the temperature of the laser head during use and extending its service life. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 This is a schematic diagram of the clamping platform in this invention.

[0033] Figure 3 This is a top view of the clamping platform in this invention.

[0034] Figure 4 This is a schematic diagram of the internal structure of the top plate and coolant tank in this invention.

[0035] Figure 5 This is a schematic diagram of the laser engraving mechanism in this invention.

[0036] Figure 6 This is a schematic diagram of the internal structure of the sealing cylinder in this invention.

[0037] Figure 7 This is a schematic diagram of the structure of the fixed sealing seat in this invention.

[0038] Figure 8 This is a schematic diagram of the lifting component in this invention.

[0039] Figure 9 This is a schematic diagram of the force limiting component in this invention.

[0040] In the diagram, 1. Workbench; 2. Frame; 3. Machine body; 4. Clamping mechanism; 5. Clamping table; 6. Coolant tank; 7. Lifting mechanism; 8. Top plate; 9. Clamping slot; 10. Limiting slot; 11. Electric telescopic rod; 12. Mounting base; 13. First threaded rod; 14. Moving base; 15. Horizontal moving assembly; 16. Grinding motor; 17. Drive motor; 18. Piston plate; 19. Push rod; 20. Limiting block; 21. Coolant chamber; 22. Mounting slot; 23. Heat-conducting plate; 24. Heat-conducting rod; 25. Connecting plate; 27. Hydraulic cylinder; 28. Sealing plate. 29. Laser head; 30. Sealing cylinder; 31. Lifting column; 32. Limiting slide groove; 33. Fixed sealing seat; 34. Sliding cavity; 35. First spring; 36. Sliding sealing seat; 37. Triangular seat; 38. Clearance groove; 39. First cooling cavity; 40. Telescopic protective cover; 41. Second cooling cavity; 42. Fixed cylinder; 43. Lifting motor; 44. Second threaded rod; 45. Threaded seat; 46. Force limiting seat; 47. Lifting cylinder; 48. Limiting plate; 49. Arc-shaped groove; 50. Force limiting cavity; 51. Telescopic rod; 52. Second spring; 53. Arc-shaped protrusion. Detailed Implementation

[0041] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0042] like Figures 1-9As shown, this aluminum single-panel laser engraving machine with flatness detection and correction function includes a worktable 1, a frame 2 fixed to the upper rear of the worktable 1, a body 3 fixed to the upper side of the frame 2, a laser engraving mechanism on the body 3, a clamping mechanism 4 on the upper side of the worktable 1, the clamping mechanism 4 including a clamping table 5, a clamping groove 9 on the upper side of the clamping table 5, limit grooves 10 on the left and right sides of the clamping groove 9, the front side of the limit groove 10 is open, and a coolant tank 6 is fixed to the lower end of the clamping groove 9. A piston plate 18 is slidably connected inside the coolant tank 6. An installation groove 22 is provided at the lower end of the clamping groove 9. A lifting mechanism 7 is provided inside the installation groove 22. The lifting mechanism 7 is slidably connected to the piston plate 18. Several push rods 19 are slidably connected to the upper end of the coolant tank 6. A limit block 20 is fixed at the lower end of the push rod 19. A top plate 8 is fixed at the upper end of the push rod 19. A coolant cavity 21 is provided inside the top plate 8. A cooling channel is provided inside the push rod 19. The coolant cavity 21 is connected to the interior of the coolant tank 6 through the cooling channel.

[0043] During operation, the aluminum panel is inserted into the limiting groove 10 through the front side. Then, the lifting mechanism 7 drives the piston plate 18 to rise. Under the pressure of the coolant, the top plate 8 moves upward, thereby causing the aluminum panel to rise. The upper edge of the aluminum panel abuts against the upper inside of the mounting groove 22. Since the upper inside of the mounting groove 22 is a flat structure, the horizontal placement of the aluminum panel is guaranteed after it abuts against the upper side of the mounting groove 22. The multiple top plates 8 not only utilize multiple... Each top plate 8 provides support and contact to the underside of the aluminum panel, preventing deformation under gravity. Furthermore, the multiple top plates 8 can adapt to different shapes of the aluminum panel's underside, meeting the clamping requirements for aluminum panels with varying surface shapes and improving the device's practicality. Under the principle of communicating vessels, the pressure applied by each top plate 8 to the aluminum panel is ensured to be uniform, preventing uneven stress and ensuring the panel's integrity. This significantly improves the flatness of the aluminum panel during clamping, enhances the uniformity of engraving, and guarantees the quality of the engraving.

[0044] The top plate 8 has an installation groove 22 on its upper side. A heat-conducting plate 23 is fixed inside the installation groove 22. The upper side of the heat-conducting plate 23 is flush with the upper side of the top plate 8. Several heat-conducting rods 24 are fixed on the lower side of the heat-conducting plate 23. The lower ends of the heat-conducting rods 24 extend into the coolant cavity 21.

[0045] With the above structure, the heat-conducting plate 23 and heat-conducting rod 24 can conduct heat to the aluminum panel and the coolant can be used to cool it down, thereby preventing the temperature of the aluminum panel from affecting the accuracy of the engraving during the engraving process. In addition, after the engraving is completed, the temperature of the aluminum panel can be kept low to prevent workers from being burned when handling the aluminum panel, thus improving safety. In conjunction with the top plate 8 and other structures, the coolant can be used for multiple purposes, which greatly improves the compactness of the device and reduces the operating cost of the equipment.

[0046] Electric telescopic rods 11 are fixed at the four upper corners of the clamping table 5. Mounting bases 12 are fixed at the upper ends of the electric telescopic rods 11. First threaded rods 13 are rotatably connected between the front and rear mounting bases 12. A drive motor 17 is fixed on the rear mounting base 12. The output shaft end of the drive motor 17 is fixedly connected to the first threaded rod 13. A movable base 14 is threaded onto the first threaded rod 13. A horizontal moving assembly 15 is fixed between the two movable bases 14. A grinding motor 16 is connected to the horizontal moving assembly 15. A grinding wheel is fixed to the output shaft end of the grinding motor 16. A flatness tester is fixed on the housing of the grinding motor 16.

[0047] With the above structure, after the aluminum panel is clamped, the surface of the aluminum panel can be further inspected using a flatness tester to prevent deformation of the aluminum panel caused by processing or transportation from affecting the flatness of the aluminum panel when it falls. If a problem with the flatness of the aluminum panel is detected, the grinding motor 16 can be lowered by the electric telescopic rod 11 so that the grinding wheel contacts the surface of the aluminum panel. At the same time, the drive motor 17 drives the first threaded rod 13 to rotate, so that the grinding wheel moves back and forth. The horizontal moving component 15 drives the grinding wheel to move left and right, thereby improving the flatness of the aluminum panel by grinding it.

[0048] The lifting assembly includes a fixed cylinder 42, which is fixedly connected to the mounting groove 22. A lifting motor 43 is fixedly installed at the lower end of the fixed cylinder 42. A second threaded rod 44 is fixedly installed at the output shaft end of the lifting motor 43. A force limiting component is installed on the second threaded rod 44. A lifting cylinder 47 is connected to the force limiting component. The upper end of the lifting cylinder 47 extends into the coolant tank 6 and is fixedly connected to the piston plate 18.

[0049] The force limiting component includes a threaded seat 45, which is threadedly connected to a second threaded rod 44. A force limiting seat 46 is rotatably connected to the outer periphery of the threaded seat 45. The lower end of the lifting cylinder 47 is fixedly connected to the force limiting seat 46. Several force limiting cavities 50 are provided on the outer periphery of the threaded seat 45. A telescopic rod 51 is fixed inside the force limiting cavity 50. An arc-shaped protrusion 53 is fixed at the other end of the telescopic rod 51. A second spring 52 is fixed between the arc-shaped protrusion 53 and the force limiting cavity 50. An arc-shaped groove 49 that mates with the arc-shaped protrusion 53 is provided on the inner periphery of the force limiting seat 46. A limit plate 48 is fixed at the upper end of the second threaded rod 44.

[0050] With the above structure, the second threaded rod 44 can be rotated by the lifting motor 43, and the second threaded rod 44 can drive the threaded seat 45 to rise. The threaded seat 45 drives the lifting cylinder 47 to rise through the force limiting component, thereby causing the piston plate 18 to rise and achieve clamping of the aluminum panel. When the clamping force between the top plate 8 and the aluminum panel reaches a certain level, the horizontal squeezing force of the arc groove 49 on the arc protrusion 53 reaches its limit, causing the arc protrusion 53 to disengage from the arc groove 49. This allows the threaded seat 45 to rotate with the second threaded rod 44, preventing excessive pressure from the top plate 8 on the aluminum panel due to system failure or operational errors. This further reduces the factors that cause deformation due to excessive clamping force when clamping the aluminum panel, and further ensures the flatness of the aluminum panel.

[0051] The laser engraving mechanism includes a connecting plate 25, which is connected to the moving part on the machine body 3. A hydraulic cylinder 27 is fixed to the lower side of the connecting plate 25, and a sealing plate 28 is fixed to the lower end of the hydraulic cylinder 27. A laser head 29 is fixed to the lower side of the sealing plate 28. Several telescopic columns are fixed to the lower side of the connecting plate 25, and a sealing cylinder 30 is fixed to the lower end of the telescopic columns. The sealing plate 28 is located inside the sealing cylinder 30, and a limiting groove 32 is opened inside the sealing cylinder 30. The sealing plate 28 is slidably connected to the limiting groove 32.

[0052] With the above structure, during operation, the hydraulic cylinder 27 drives the laser head 29 to descend, and the sealing cylinder 30 descends under the action of the sealing plate 28, thereby extending the telescopic column. When the telescopic column extends to its limit position, the laser head 29 continues to descend, allowing it to extend out of the sealing cylinder 30 for normal engraving. After engraving is completed, the hydraulic cylinder 27 drives the laser head 29 to rise. When the telescopic column retracts to its limit position, the laser head 29 continues to rise, allowing it to enter the interior of the sealing cylinder 30. This structure achieves automatic extension and retraction of the laser head 29 without additional operation, thus preventing the risk of workers being burned by accidentally touching the laser head 29 after processing.

[0053] The sealing cylinder 30 has a square structure. The lower end of the sealing cylinder 30 is fixed with a U-shaped fixed sealing seat 33. The left and right sides of the sealing seat are provided with sliding cavities 34. The sliding cavity 34 is fixed with a first spring 35. The other end of the first spring 35 is fixed with a sliding sealing seat 36. The sliding sealing seat 36 is slidably connected to the sliding cavity 34.

[0054] A triangular seat 37 is fixed on the upper side of the sliding closed seat 36, and an avoidance groove 38 is provided on the side of the triangular seat 37 near the fixed closed seat 33.

[0055] This structure allows the laser head 29 to press against the triangular seat 37 when it extends out of the sealing cylinder 30, thereby opening the sliding sealing seat 36. When the laser head 29 retracts into the sealing cylinder 30, the sliding sealing seat 36 automatically seals the sealing cylinder 30 under the action of the first spring 35, preventing external dust from contaminating the laser head 29 and protecting it. The clearance groove 38 ensures that the sliding sealing seat 36 has sufficient room to move while the fixed sealing seat 33 does not affect the movement of the triangular seat 37, and also ensures the sealing of the sliding cavity 34, preventing the diameter of the sealing cylinder 30 from being too large and improving the compactness of the device.

[0056] The fixed sealing seat 33 has a first cooling chamber 39 corresponding to the front and rear of the interior. The first cooling chamber 39 is connected to the sliding cavity 34 through a through hole. The sliding sealing seat 36 has a second cooling chamber 41, which is connected to the sliding cavity 34 through a through hole. The front and rear sides and the top and bottom sides of the sliding sealing seat 36 are sealed to the side wall of the sliding cavity 34. The first cooling chamber 39, the sliding cavity 34 and the second cooling chamber 41 are all filled with coolant.

[0057] With this structure, the laser head 29 is square. The front and rear side walls of the laser head 29 abut against the inner front and rear sides of the fixed sealing seat 33, and the left and right side walls of the laser head 29 abut against the sliding sealing seat 36. This allows the laser head 29 to be cooled by the coolant in the first and second coolant chambers 21 during operation, thereby reducing the temperature of the laser head 29 during use and extending its service life.

[0058] Several telescopic protective covers 40 are fixed between the sliding cavity 34 and the sliding closed seat 36. Each telescopic protective cover 40 corresponds to a first spring 35, and the first spring 35 is located inside the telescopic protective cover 40.

[0059] By adopting the above structure, the first spring 35 can be placed in a closed environment, which prevents the coolant from corroding the first spring 35 and extends the service life of the first spring 35.

[0060] The working principle of this invention is as follows: During operation, the aluminum panel is inserted into the limiting groove 10 through the front side of the limiting groove 10. The second threaded rod 44 is rotated by the lifting motor 43, which in turn drives the threaded seat 45 to rise. The threaded seat 45 drives the lifting cylinder 47 to rise through the force limiting component. Under the pressure of the coolant, the top plate 8 moves upward, thereby causing the top plate 8 to lift the aluminum panel. The upper edge of the aluminum panel abuts against the upper side of the mounting groove 22. Since the upper side of the mounting groove 22 is a planar structure, when the aluminum panel abuts against the upper side of the mounting groove 22, it can completely ensure the horizontal placement of the aluminum panel, achieving clamping of the aluminum panel. When the clamping force between the top plate 8 and the aluminum panel reaches a certain level, the arc-shaped groove 49 and the arc-shaped protrusion 5... When the horizontal compression force of plate 3 reaches its limit, the arc-shaped protrusion 53 disengages from the arc-shaped groove 49, causing the threaded seat 45 to rotate with the second threaded rod 44. This prevents excessive pressure from the top plate 8 on the aluminum panel due to system malfunction or operational error. The multiple top plates 8 not only provide even support and resistance to the lower side of the aluminum panel, preventing deformation under gravity, but also adapt to different shapes of the lower side of the aluminum panel, meeting the clamping requirements of aluminum panels with different surface shapes and improving the practicality of the device. Furthermore, the principle of communicating vessels ensures that each top plate 8 applies the same pressure to the aluminum panel, preventing uneven force on the aluminum panel and greatly improving the flatness of the aluminum panel during clamping. To improve the uniformity of the carving process and ensure carving quality, after the aluminum panel is clamped, a flatness tester can be used to further inspect the surface of the aluminum panel to prevent deformation caused by processing or transportation from affecting the flatness of the aluminum panel upon drop. If a flatness problem is detected, the electric telescopic rod 11 can drive the grinding motor 16 to descend, making the grinding wheel contact the surface of the aluminum panel. At the same time, the drive motor 17 drives the first threaded rod 13 to rotate, causing the grinding wheel to move back and forth. The horizontal moving component 15 drives the grinding wheel to move left and right, thereby improving the flatness of the aluminum panel through grinding. The hydraulic cylinder 27 can drive the laser head 29 to descend, and the sealing cylinder 30 can descend under the drive of the sealing plate 28, thereby... The telescopic column extends, and when it reaches its limit, the laser head 29 continues to descend, extending out of the sealing cylinder 30, allowing for normal engraving. During engraving, the front and rear sidewalls of the laser head 29 contact the inner circumference of the fixed sealing seat 33, while the left and right sidewalls of the laser head 29 contact the sliding sealing seat 36. This allows the laser head 29 to be lowered using the coolant in the first and second cooling chambers 21, reducing its operating temperature and extending its lifespan. Simultaneously, the heat-conducting plate 23 and heat-conducting rod 24 conduct heat to the aluminum panel, and the coolant further cools it, preventing temperature fluctuations during engraving from affecting the accuracy of the engraving process.Furthermore, the engraving process keeps the aluminum panels at a lower temperature, preventing burns to workers handling them and improving safety. Combined with structures like the top panel 8, it allows for multiple uses of the coolant, significantly improving the device's compactness and reducing operating costs.

[0061] In summary, the design of structures such as the top plate 8 and the clamping groove 9 improves the uniformity of carving and ensures the quality of carving.

[0062] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. An aluminum veneer laser engraving machine having a flatness detection correction function, comprising a worktable (1), characterized in that, A frame (2) is fixed to the upper rear part of the workbench (1), and an organism (3) is fixed to the upper side of the frame (2). A laser engraving mechanism is provided on the organism (3). A clamping mechanism (4) is provided on the upper side of the workbench (1). The clamping mechanism (4) includes a clamping table (5). A clamping groove (9) is provided on the upper side of the clamping table (5). Limiting grooves (10) are provided on the left and right sides of the clamping groove (9). The front side of the limiting groove (10) is open. A coolant tank is fixed to the lower end of the clamping groove (9). A piston plate (18) is slidably connected inside the coolant tank. The lower end of the clamping groove (9) is provided with an installation groove 1. The installation groove 1 is provided with a lifting mechanism (7). The lifting mechanism (7) is slidably connected to the piston plate (18). The upper end of the coolant tank (6) is slidably connected with several push rods (19). The lower end of the push rod (19) is fixed with a limit block (20). The upper end of the push rod (19) is fixed with a top plate (8). The top plate (8) is provided with a coolant cavity (21). The push rod (19) is provided with a cooling channel. The coolant cavity (21) is connected to the interior of the coolant tank (6) through the cooling channel.

2. The aluminum single-plate laser engraving machine with flatness detection and correction function according to claim 1, characterized in that, The top plate (8) has an installation groove 2 on its upper side. A heat-conducting plate (23) is fixed inside the installation groove 2. The upper side of the heat-conducting plate (23) is flush with the upper side of the top plate (8). Several heat-conducting rods (24) are fixed on the lower side of the heat-conducting plate (23). The lower end of the heat-conducting rods (24) extends into the coolant cavity (21).

3. The aluminum single-panel laser engraving machine with flatness detection and correction function according to claim 1, characterized in that, Electric telescopic rods (11) are fixed at the four corners of the upper side of the clamping platform (5). Mounting bases (12) are fixed at the upper ends of the electric telescopic rods (11). A first threaded rod (13) is rotatably connected between the front and rear mounting bases (12). A drive motor (17) is fixed on the rear mounting base (12). The output shaft end of the drive motor (17) is fixedly connected to the first threaded rod (13). A movable seat (14) is threaded on the first threaded rod (13). A horizontal moving assembly (15) is fixed between the two movable seats (14). A grinding motor (16) is connected to the horizontal moving assembly (15). A grinding wheel is fixed at the output shaft end of the grinding motor (16). A flatness tester is fixed on the outer shell of the grinding motor (16).

4. The aluminum single-plate laser engraving machine with flatness detection and correction function according to claim 1, characterized in that, The lifting mechanism (7) includes a fixed cylinder (42), which is fixedly connected to the mounting groove. A lifting motor (43) is fixedly installed at the lower end of the fixed cylinder (42). A second threaded rod (44) is fixedly installed at the output shaft end of the lifting motor (43). A force limiting component is provided on the second threaded rod (44). A lifting cylinder (47) is connected to the force limiting component. The upper end of the lifting cylinder (47) extends into the coolant tank (6) and is fixedly connected to the piston plate (18).

5. The aluminum single-panel laser engraving machine with flatness detection and correction function according to claim 4, characterized in that, The force limiting component includes a threaded seat (45), which is threadedly connected to a second threaded rod (44). A force limiting seat (46) is rotatably connected to the outer periphery of the threaded seat (45). The lower end of the lifting cylinder (47) is fixedly connected to the force limiting seat (46). Several force limiting cavities (50) are opened on the outer periphery of the threaded seat (45). A telescopic rod (51) is fixed inside the force limiting cavity (50). An arc-shaped protrusion (53) is fixed at the other end of the telescopic rod (51). A second spring (52) is fixed between the arc-shaped protrusion (53) and the force limiting cavity (50). An arc-shaped groove (49) that mates with the arc-shaped protrusion (53) is opened on the inner periphery of the force limiting seat (46). A limit plate (48) is fixed at the upper end of the second threaded rod (44).

6. The aluminum single-panel laser engraving machine with flatness detection and correction function according to claim 1, characterized in that, The laser engraving mechanism includes a connecting plate (25), which is connected to the moving part on the machine body (3). A hydraulic cylinder (27) is fixed on the lower side of the connecting plate (25), and a sealing plate (28) is fixed at the lower end of the hydraulic cylinder (27). A laser head (29) is fixed on the lower side of the sealing plate (28). Several telescopic columns are fixed on the lower side of the connecting plate (25), and a sealing cylinder (30) is fixed at the lower end of the telescopic columns. The sealing plate (28) is located inside the sealing cylinder (30), and a limiting groove (32) is opened inside the sealing cylinder (30). The sealing plate (28) is slidably connected to the limiting groove (32).

7. The aluminum single-panel laser engraving machine with flatness detection and correction function according to claim 6, characterized in that, The sealing cylinder (30) has a square structure. The lower end of the sealing cylinder (30) is fixed with a U-shaped fixed sealing seat (33). The left and right sides of the sealing seat are provided with sliding cavities (34). The sliding cavity (34) is fixed with a first spring (35). The other end of the first spring (35) is fixed with a sliding sealing seat (36). The sliding sealing seat (36) is slidably connected to the sliding cavity (34).

8. The aluminum single-panel laser engraving machine with flatness detection and correction function according to claim 7, characterized in that, A triangular seat (37) is fixed on the upper side of the sliding closed seat (36), and an avoidance groove (38) is provided on the side of the triangular seat (37) near the fixed closed seat (33).

9. A laser engraving machine for aluminum single-panel panels with flatness detection and correction function according to claim 7, characterized in that, The fixed sealing seat (33) has a first cooling chamber (39) with corresponding front and rear openings inside. The first cooling chamber (39) is connected to the sliding cavity (34) through a through hole. The sliding sealing seat (36) has a second cooling chamber (41) with corresponding front and rear openings. The second cooling chamber (41) is connected to the sliding cavity (34) through a through hole. The front and rear sides and the top and bottom sides of the sliding sealing seat (36) are sealed to the side wall of the sliding cavity (34). The first cooling chamber (39), the sliding cavity (34) and the second cooling chamber (41) are all filled with coolant.

10. A laser engraving machine for aluminum single-panel panels with flatness detection and correction function according to claim 9, characterized in that, A plurality of telescopic protective covers (40) are fixed between the sliding cavity (34) and the sliding closed seat (36). The telescopic protective covers (40) correspond one-to-one with the first spring (35), and the first spring (35) is located inside the telescopic protective cover (40).

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