Laser engraving device for punching aluminum veneer production

Abstract

The invention relates to the technical field of aluminum veneer laser engraving, and discloses a laser engraving device for punching aluminum veneer production, which comprises an engraving table, a connecting plate and a vertical frame, the inner upper surface of the engraving table is opposite to the lower surface of the connecting plate, and the engraving table is not in direct contact with the connecting plate; and a self-adaptive clamping stagnation prevention follow-up mechanism is arranged on the lower surface of the connecting plate. According to the laser engraving device for production of the punched aluminum veneer, the core problem of laser engraving on the punched aluminum veneer with the special-shaped curved surface is solved through the self-adaptive clamping stagnation prevention follow-up mechanism, and through layout and linkage of the first hinge seat, the second hinge seat, the rectangular frame and the profiling wheels, when the single profiling wheel falls into a hole or jumps, laser engraving is conducted on the punched aluminum veneer with the special-shaped curved surface, and laser engraving is conducted on the punched aluminum veneer with the special-shaped curved surface. The damping rod and the hinge structure can effectively buffer and average abnormal signals, it is ensured that height measurement is guided by the wheel on the entity, and therefore the situation that the profiling wheel is stuck or the signals are interrupted is avoided, and continuity and stability of the engraving process are ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser engraving of aluminum veneer, in particular to a laser engraving device for punched aluminum veneer production. BACKGROUND

[0002] Punched aluminum veneer is a modern building decoration material formed by various regular or artistic holes on aluminum alloy plate through precise numerical control punching technology. It has both light and strong physical properties and transparent and dynamic visual beauty, and is widely used in building curtain walls, indoor space and facility decoration. Laser engraving technology performs precise etching on the sprayed surface of punched aluminum veneer, giving it unlimited possibilities of patterns, textures and details without damaging the substrate.

[0003] The laser engraving work flow of the prior art punched aluminum veneer usually first cuts, bends and other sheet metal processes to form a substrate, then punches out a preset hole type using a numerical control punch press, then performs pre-treatment such as cleaning and chromium plating, then performs surface spraying and solidification to form a uniform base color, and finally fixes the sprayed plate to the laser engraving machine workbench. By high-precision laser beam, the local paint layer is gasified according to the graphic file, thereby etching fine patterns, characters or textures on the macroscopic texture formed by punching, and finally realizing the dual effects of transparency and decoration.

[0004] However, when engraving by high-precision laser beam, the punched aluminum plate is not always flat, sometimes it is designed into a three-dimensional shape such as an arc or a wave. The focal point of the laser is a very small point with the highest energy density. When the engraving head moves up on the curved surface, even a slight arc, the change in working distance will cause the laser to be out of focus, resulting in uneven thickness and depth of the engraved lines, and even insufficient energy to engrave through the paint layer. Therefore, it will cause the laser energy density to fluctuate sharply, resulting in uneven thickness and depth of the engraved lines that cannot be controlled, and local areas cannot effectively engrave through the paint layer to form complete patterns. At the same time, the areas with too high energy may over-etch and damage the substrate, ultimately resulting in a rough surface effect, pattern breakage, loss of consistency, and serious damage to the design integrity and visual quality.

[0005] Although the defocusing problem can be solved by the profiling wheel when engraving irregular curved surfaces, the surface is not always smooth and continuous. On the punched aluminum plate, the surface is covered with holes. When the profiling wheel rolls, if the hole diameter is greater than the wheel width, the wheel will get stuck in the hole, causing the height measurement to fail, and even the machine to be stuck. It also jumps on narrow ribs and slides between holes, causing unpredictable jumps that leave intermittent pits, scratches and missed engraving areas on the engraved path, seriously damaging the pattern continuity. More importantly, it will cause severe vibration and impact due to mechanical interference, damaging the precise optical components and transmission mechanism, and even forcing the engraving operation to be interrupted. SUMMARY

[0006] To address the shortcomings of existing technologies, this invention provides a laser engraving device for the production of perforated aluminum panels. This device solves the defocusing problem during engraving of irregular curved surfaces using a contour wheel, while also mitigating the impact of perforation and filter plate holes on the use of the contour wheel, thus resolving the problems mentioned in the background art.

[0007] The present invention provides the following technical solution: a laser engraving device for the production of perforated aluminum single panels, comprising an engraving table, a connecting plate and a vertical frame, wherein the upper inner surface of the engraving table is disposed opposite to the lower surface of the connecting plate, and the engraving table is not in direct contact with the connecting plate, and the lower surface of the connecting plate is provided with an adaptive anti-jamming follow-up mechanism. The power output end of the adaptive anti-jamming follow-up mechanism is equipped with a synchronous lifting mechanism that converts the surface force of the rolling aluminum single plate into synchronous lifting force, and the power output end of the synchronous lifting mechanism is equipped with a multi-wheel follow-up mechanism that converts the rolling force of the aluminum single plate hole force into the hinge force that follows the power.

[0008] The adaptive anti-jamming follow-up mechanism consists of a synchronous lifting mechanism and a multi-wheel follow-up mechanism.

[0009] Preferably, the synchronous lifting mechanism includes a fixed block, a protrusion, a receiving block, a receiving frame, a connecting spring, and a telescopic rod. The upper surface of the fixed block is fixedly installed on the lower surface of the connecting plate, the back side of the protrusion is fixedly connected to the front side of the fixed block, the inner wall of the back side of the receiving block is slidably connected to the outer surface of the protrusion, the upper surface of the receiving frame is fixedly connected to the lower surface of the receiving block, one end of the connecting spring is fixedly installed on the lower surface of the connecting plate, and one end of the telescopic rod is fixedly installed on the lower surface of the connecting plate.

[0010] Preferably, the multi-wheel follower mechanism includes a first hinge seat, a rectangular plate, a second hinge seat, a rectangular frame, a U-shaped frame, a rotating shaft, and a contour wheel. The back of the first hinge seat is connected to the front of the vertical frame. One side of the rectangular plate is fixedly installed to the hinge end of the first hinge seat. The hinge end of the second hinge seat is fixedly installed to the other side of the first hinge seat. The upper surface of the rectangular frame is fixedly installed to the lower surface of the second hinge seat. The upper surface of the U-shaped frame is fixedly connected to the lower surface of the rectangular frame. The outer surface of the rotating shaft is rotatably connected to the inner wall of the U-shaped frame. The interior of the contour wheel is fixedly installed to the outer surface of the rotating shaft.

[0011] Preferably, the interior of the receiving block is slidably connected to the outer surface of the fixing block, a placement plate is fixedly installed on the lower surface of the receiving frame, and a laser engraving head is installed on the lower surface of the placement plate.

[0012] Preferably, an extension frame is fixedly installed on the left side of the receiving block, and the lower surface of the extension frame is fixedly installed on the upper surface of the vertical frame.

[0013] Preferably, the upper surface of the extension frame is fixedly connected to one end of the telescopic rod, and the upper surface of the extension frame is fixedly connected to one end of the connecting spring.

[0014] Preferably, a crossbar is slidably connected to the outer surface of the rectangular frame, and a damping rod is fixedly installed on the upper surface of the crossbar, with one end of the damping rod fixedly connected to the lower surface of the vertical frame.

[0015] Preferably, an electric slide rail is fixedly installed on both sides of the upper surface of the engraving table, and a sliding frame is slidably connected to the outer surface of the electric slide rail, with the lower surface of the sliding frame fitting against the upper surface of the engraving table.

[0016] Preferably, a connecting frame is fixedly installed on the upper surface of the sliding frame, and a hydraulic cylinder is installed on the upper surface of the connecting frame. One end of the output shaft of the hydraulic cylinder is fixedly connected to the upper surface of the connecting plate.

[0017] Preferably, the engraving table has a through groove inside, and electric slide rails are fixedly installed on both sides of the upper surface inside the through groove. A receiving plate is slidably connected to the outer surface of the electric slide rails. The receiving plate has a placement groove inside, and the lower surface of the receiving plate is fitted to the upper surface inside the through groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This laser engraving device for perforated aluminum panels solves the core problem of laser engraving on irregularly shaped curved perforated aluminum panels through an adaptive anti-jamming follow-up mechanism. Furthermore, through the layout and linkage of hinge seat one, hinge seat two, rectangular frame and contour wheel, when a single contour wheel falls into a hole or jumps, the damping rod and hinge structure can effectively buffer and average abnormal signals, ensuring that height measurement is dominated by the wheel on the solid surface. This avoids contour wheel jamming or signal interruption, ensuring the continuity and stability of the engraving process.

[0019] 2. This laser engraving device for perforated aluminum panels utilizes a receiving block that slides along a precision guide rail formed by a fixed block and a protrusion. The contour changes detected by the multi-wheel follower mechanism are transmitted to the laser engraving head without damage or delay via an extension frame and a vertical frame. A connecting spring provides constant contour-following contact pressure, while the telescopic rod ensures linearity of movement. Together, these elements ensure that the focus of the laser engraving head always accurately falls on the undulating surface of the workpiece, effectively eliminating quality defects such as inconsistent pattern depth and line thickness caused by defocusing.

[0020] 3. This laser engraving device for producing perforated aluminum panels, through electric slide rail one and electric slide rail two and hydraulic cylinders configured on the engraving table, realizes the Y-axis positioning of the workpiece on the receiving plate and the macroscopic movement of the engraving head assembly in the X and Z axes. It complements the core follow-up fine adjustment, enabling the device to not only process complex curved surface workpieces such as arcs and waves with high quality, but also to engrave flat perforated aluminum panels, greatly expanding the processing range, improving production efficiency and the consistency of finished products, and significantly reducing the process risks and scrap rate caused by the shape of the workpiece and surface holes. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 For the present invention Figure 1 A top-down view of the structure on the right side; Figure 3 For the present invention Figure 1 A top-down view of the structure from the left side; Figure 4 For the present invention Figure 1 A schematic diagram of the internal explosion structure; Figure 5 For the present invention Figure 1 A schematic diagram of the cross-sectional structure; Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 For the present invention Figure 5 Enlarged schematic diagram of the structure at point B.

[0022] In the diagram: 1. Engraving table; 2. Electric slide rail one; 3. Sliding frame; 4. Connecting frame; 5. Hydraulic cylinder; 6. Through groove; 7. Electric slide rail two; 8. Support plate; 9. Placement groove; 10. Connecting plate; 11. Fixing block; 12. Protrusion; 13. Support block; 14. Support frame; 15. Placement plate; 16. Laser engraving head; 17. Connecting spring; 18. Telescopic rod; 19. Extension frame; 20. Vertical frame; 21. Hinge seat one; 22. Rectangular plate; 23. Hinge seat two; 24. Rectangular frame; 25. U-shaped frame; 26. Rotating shaft; 27. Contouring wheel; 28. Horizontal frame; 29. ​​Damping rod. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1 , Figure 5 , Figure 6 and Figure 7 A laser engraving device for producing perforated aluminum single panels includes an engraving table 1, a connecting plate 10 and a vertical frame 20. The upper inner surface of the engraving table 1 is arranged opposite to the lower surface of the connecting plate 10, and the engraving table 1 is not in direct contact with the connecting plate 10. The lower surface of the connecting plate 10 is provided with an adaptive anti-jamming follow-up mechanism. The power output end of the adaptive anti-jamming follow-up mechanism is equipped with a synchronous lifting mechanism that converts the surface force of the rolling aluminum single plate into synchronous lifting force, and the power output end of the synchronous lifting mechanism is equipped with a multi-wheel follow-up mechanism that converts the rolling force of the aluminum single plate hole force into the hinge force that follows the power.

[0025] The adaptive anti-jamming follow-up mechanism consists of a synchronous lifting mechanism and a multi-wheel follow-up mechanism. The synchronous lifting mechanism includes a fixed block 11, a protrusion 12, a receiving block 13, a receiving frame 14, a connecting spring 17, and a telescopic rod 18. The upper surface of the fixed block 11 is fixedly installed on the lower surface of the connecting plate 10. The back of the protrusion 12 is fixedly connected to the front of the fixed block 11. The inner wall of the back of the receiving block 13 is slidably connected to the outer surface of the protrusion 12. The upper surface of the receiving frame 14 is fixedly connected to the lower surface of the receiving block 13. One end of the connecting spring 17 is connected to the lower surface of the connecting plate 10. The surface is fixedly installed, one end of the telescopic rod 18 is fixedly installed to the lower surface of the connecting plate 10, the inside of the receiving block 13 is slidably connected to the outer surface of the fixed block 11, the lower surface of the receiving frame 14 is fixedly installed with a placement plate 15, the lower surface of the placement plate 15 is provided with a laser engraving head 16, the left side of the receiving block 13 is fixedly installed with an extension frame 19, the lower surface of the extension frame 19 is fixedly installed to the upper surface of the vertical frame 20, the upper surface of the extension frame 19 is fixedly connected to one end of the telescopic rod 18, and the upper surface of the extension frame 19 is fixedly connected to one end of the connecting spring 17.

[0026] Specifically, the adaptive anti-jamming follow-up mechanism enables the device to automatically adjust according to changes in the surface of aluminum panels with different curves and holes. This effectively avoids jamming problems caused by uneven surfaces or uneven stress at holes, ensuring the continuity and stability of the laser engraving process and improving engraving quality. Furthermore, through the sliding connection design between the fixing block 11 and the receiving block 13, when the curved surface of the aluminum panel generates force, the receiving block 13 can slide stably along the fixing block 11 and the protrusion 12. This sliding cooperation allows the receiving frame 14, the placement plate 15 installed below it, and the laser engraving head 16 to achieve precise synchronous lifting and lowering movements. This ensures that the laser engraving head 16 is closely fitted to aluminum panels with different curved surfaces, guaranteeing that the distance between the laser engraving head 16 and the surface of the aluminum panel is always within the optimal engraving range, thus improving the accuracy and quality of the engraving. During the laser engraving process, when encountering uneven surfaces on the aluminum panel or being subjected to instantaneous impact, the connecting spring 17 can undergo elastic deformation to absorb and disperse some of the energy, reducing vibration and... The impact on the laser engraving head 16 is mitigated, preventing engraving deviations or damage caused by violent shaking, thus extending the lifespan of the engraving head and further improving engraving stability. The telescopic rod 18 provides precise guidance for the lifting and lowering movement of the receiving block 13, ensuring that the receiving block 13 can only move up and down in a fixed direction without deviation or shaking, guaranteeing the accuracy of synchronous lifting. Furthermore, the telescopic rod 18, in conjunction with the connecting spring 17, supports and stabilizes the receiving block 13 and its related components, enhancing the structural strength and stability of the entire synchronous lifting mechanism, enabling the device to maintain reliable operation during long-term use.

[0027] Please see Figure 1 , Figure 5 and Figure 7 The multi-wheel follower mechanism includes a hinge seat 21, a rectangular plate 22, a hinge seat 23, a rectangular frame 24, a U-shaped frame 25, a rotating shaft 26, and a contour wheel 27. The back of the hinge seat 21 is connected to the front of the vertical frame 20. One side of the rectangular plate 22 is fixedly installed to the hinge end of the hinge seat 21. The hinge end of the hinge seat 23 is fixedly installed to the other side of the hinge seat 21. The upper surface of the rectangular frame 24 is fixedly installed to the lower surface of the hinge seat 23. The upper surface of the U-shaped frame 25 is fixedly connected to the lower surface of the rectangular frame 24. The outer surface of the rotating shaft 26 is rotatably connected to the inner wall of the U-shaped frame 25. The interior of the contour wheel 27 is fixedly installed to the outer surface of the rotating shaft 26. A crossbar 28 is slidably connected to the outer surface of the rectangular frame 24. A damping rod 29 is fixedly installed on the upper surface of the crossbar 28. One end of the damping rod 29 is fixedly connected to the lower surface of the vertical frame 20.

[0028] Specifically, in the multi-wheel follower mechanism, hinge seat 1 21 is connected to the vertical frame 20, rectangular plate 22 is hinged to hinge seat 1 21, and hinge seat 23 is connected to the other side of hinge seat 1 21. When there are curved surfaces or holes on the surface of the aluminum single panel, the contour wheel 27 is mounted on the U-shaped frame 25 through the rotating shaft 26. The U-shaped frame 25 is connected to the rectangular frame 24, and the rectangular frame 24 is then connected to hinge seat 1 21 through hinge seat 23. It can closely fit the shape of the aluminum single panel surface and roll, converting the force at the holes of the aluminum single panel into the hinge force and follower force, realizing contour following, ensuring that the laser engraving head 16 can work accurately on complex surfaces, and improving the engraving accuracy. The outer surface of the rectangular frame 24 is slidably connected to the horizontal frame 28, and one end of the damping rod 29 installed on the horizontal frame 28 is fixed to the lower surface of the vertical frame 20. During the rolling of the contour wheel 27, when it encounters an uneven surface of the aluminum panel and generates impact force, the damping rod 29 can play a buffering and shock absorption role. Through its own damping characteristics, it absorbs and disperses the impact energy, reduces the vibration transmitted to the laser engraving head 16, and avoids problems such as uneven engraving lines and blurred patterns caused by vibration, thus ensuring the stability of engraving quality. The hinge seat 21 is connected to the vertical frame 20, and the multi-stage hinge structure allows the multi-wheel follower mechanism to be flexibly adjusted according to the shape and size of different aluminum panels. By adjusting the angle and position of the hinge seat, the contact position and angle between the contour wheel 27 and the aluminum panel surface can be changed, thus adapting to various complex working conditions. This flexible adjustment function improves the versatility of the device, enabling it to be applied to laser engraving processing of aluminum panels of different types and specifications. The contour wheel 27 rotates within the U-shaped frame 25 via the rotating shaft 26. This rotational design results in rolling friction between the contour wheel 27 and the aluminum panel surface. Compared to sliding friction, rolling friction has lower frictional force, effectively reducing wear on the contour wheel 27 and the aluminum panel surface. At the same time, the damping rod 29's buffering effect also reduces the impact force between components, further reducing wear, extending the service life of the entire multi-wheel follower mechanism and laser engraving device, and reducing equipment maintenance costs.

[0029] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 Electric slide rail 1 is fixedly installed on both sides of the upper surface of the carving table 1. A sliding frame 3 is slidably connected to the outer surface of the electric slide rail 1. The lower surface of the sliding frame 3 is fitted with the upper surface of the carving table 1. A connecting frame 4 is fixedly installed on the upper surface of the sliding frame 3. A hydraulic cylinder 5 is installed on the upper surface of the connecting frame 4. One end of the output shaft of the hydraulic cylinder 5 is fixedly connected to the upper surface of the connecting plate 10. A through groove 6 is opened inside the carving table 1. Electric slide rail 2 is fixedly installed on both sides of the upper surface inside the through groove 6. A receiving plate 8 is slidably connected to the outer surface of the electric slide rail 2. A placement groove 9 is opened inside the receiving plate 8. The lower surface of the receiving plate 8 is fitted with the upper surface inside the through groove 6.

[0030] Specifically, the electric slide rails 2, fixedly installed on both sides of the upper surface of the engraving table 1, are slidably connected to the sliding frame 3, and the lower surface of the sliding frame 3 is in contact with the upper surface of the engraving table 1. This allows the sliding frame 3 to move smoothly and precisely along the lateral direction of the engraving table 1 under the drive of the electric slide rails 2. By controlling the operation of the electric slide rails 2, the connecting frame 4 and subsequent related components installed on the sliding frame 3 can be quickly adjusted to the required positions, thereby adapting to the engraving needs of aluminum panels of different sizes and shapes, improving the flexibility and applicability of the device. The hydraulic cylinder 5 is mounted on the upper surface of the connecting frame 4. One end of its output shaft is fixedly connected to the upper surface of the connecting plate 10. The hydraulic cylinder 5 can provide stable and powerful power. Through the extension and retraction of the output shaft, the height of the connecting plate 10 and the entire laser engraving mechanism below it in the longitudinal direction can be precisely controlled. This not only ensures that the laser engraving head 16 maintains a suitable distance from the surface of the aluminum single panel to obtain the best engraving effect, but also allows for quick and accurate adjustment when engraving aluminum single panels of different thicknesses, ensuring the stability and consistency of the engraving quality. The engraving table 1 has a through groove 6 inside. Electric slide rails 7 are installed on both sides of the upper surface inside the through groove 6. The receiving plate 8 is slidably connected to the electric slide rails 7 and its lower surface is attached to the upper surface inside the through groove 6. The receiving plate 8 has a placement groove 9 inside, which allows the receiving plate 8 to move laterally in the through groove 6 under the drive of the electric slide rails 7. When placing aluminum panels, the receiving plate 8 can be moved to a suitable position to facilitate the placement of the aluminum panels into the placement slot 9. During the engraving process, if it is necessary to engrave different positions of the aluminum panels, it can also be achieved by moving the receiving plate 8, eliminating the need for frequent manual movement of the aluminum panels, thus improving operational efficiency and convenience, and reducing the errors and damage that may be caused by manual movement of the aluminum panels.

[0031] Working principle: During use, when the perforated aluminum panel to be engraved is placed in the placement slot 9 inside the receiving plate 8 on the engraving table 1, the electric slide rail 2 7 can drive the receiving plate 8 to perform precise positioning in the Y-axis direction within the through slot 6. The laser engraving head 16 and its suspension system located above then achieve X-axis movement by driving the sliding frame 3 and connecting frame 4 through the electric slide rail 1 2. The hydraulic cylinder 5 is used to drive the entire engraving head assembly for large-stroke Z-axis coarse positioning. When engraving begins, the core adaptive anti-jamming follow-up mechanism is activated to ensure that the focus of the laser engraving head 16 always accurately follows the workpiece surface, even if there are perforations on the workpiece surface. First, the multi-wheel follow-up mechanism directly contacts the workpiece surface. This mechanism, through the composite hinge system composed of hinge seat 1 21 and hinge seat 2 23, allows the rectangular frame 24 and the two contouring wheels installed below it to move. 27 can flexibly adapt to surface undulations. When one of the contouring wheels 27 suddenly drops due to encountering a hole in the perforated aluminum panel, the rectangular frame 24 will deflect around the hinge point. Since the two contouring wheels 27 are rigidly connected by the cross frame 28 and are buffered and constrained by the damping rod 29, this deflection motion is suppressed and averaged. This makes the height signal of the vertical frame 20 connected to the rectangular frame 24 at the output end of the mechanism mainly determined by the other contouring wheel 27 that is still on the solid material. Simultaneously, the movement of the vertical frame 20 is transmitted to the receiving block 13 through the extension frame 19. The receiving block 13 slides up and down along the guide rail formed by the fixed block 11 and the protrusion 12, thereby driving the placement plate 15 and the laser engraving head 16 to rise and fall synchronously. The connecting spring 17 provides constant contact pressure for the system to ensure that the contouring wheel 27 fits the curved surface, while the telescopic rod 18 plays a guiding and auxiliary support role.

[0032] In the specific implementation of this device, the electric slide rail 12 can be selected from HIWIN's MGN12H high-precision linear slide rail; the hydraulic cylinder 5 adopts Airtac's SC standard thin cylinder and is equipped with its MLF series precision pressure regulating valve and magnetic switch to achieve controllable stroke and position feedback; the electric slide rail 27 also uses HIWIN's MGN9C compact slide rail to ensure smooth movement of the support platform; the laser engraving head 16 is configured with Raycus RFL-C1000 series fiber laser with SCANLABhurrySCAN30 galvanometer system; both hinge seat 121 and hinge seat 23 use MISUMI's SJFP type flanged spherical bearing seat to ensure multi-directional flexible rotation; the contour wheel 27 is a custom double-row angular contact bearing with a polyurethane rubber outer ring, and its width is optimized to be less than the minimum rib width; the damping rod 29 uses ACEControls' MA- The 25 series linear hydraulic damper provides smooth buffering. In terms of power supply and linkage operation, all electric and electronic control components, including slide rail servo motors, lasers, galvanometers, and sensors, are connected to the central control system and are uniformly powered by the main power distribution cabinet through industrial cables. During operation, the system first drives the electric slide rail 2 7 to move the receiving plate 8 carrying the workpiece to the processing start position. Then, the electric slide rail 1 2 and the hydraulic cylinder 5 work together to drive the laser engraving head 16 and its suspension system to perform preliminary positioning in the XZ plane. After processing begins, the contour wheel 27 rolls close to the curved surface. Through the linkage mechanism composed of hinge seat 1 21 and hinge seat 2 23, the height change is transmitted to the damping rod 29 for buffering and is finally converted into real-time fine-tuning and following motion of the laser engraving head 16 Z axis. At the same time, the galvanometer system controls the laser focus to deflect at high speed in the X and Y micro planes according to the preset path, thereby completing precise focused engraving on the curved and perforated workpiece.

[0033] It should be noted that the scope of protection of this invention does not involve improvements to the internal structure and methods; furthermore, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser engraving device for producing a punched aluminum veneer, characterized by: The application relates to a self-adaptive anti-jamming follow-up mechanism, which comprises a carving table (1), a connecting plate (10) and a vertical frame (20), the upper surface of the inside of the carving table (1) is arranged opposite to the lower surface of the connecting plate (10), and the carving table (1) is not directly in contact with the connecting plate (10); the lower surface of the connecting plate (10) is provided with the self-adaptive anti-jamming follow-up mechanism. The power output end of the self-adaptive anti-jamming follow-up mechanism is provided with a synchronous lifting mechanism for converting the rolling aluminum single plate curved surface force into synchronous lifting force; and the power output end of the synchronous lifting mechanism is provided with a multi-wheel follow-up mechanism for converting the rolling aluminum single plate hole force into a hinged force follow-up force. The self-adaptive anti-jamming follow-up mechanism is composed of the synchronous lifting mechanism and the multi-wheel follow-up mechanism.

2. The laser engraving device for producing punched aluminum veneer according to claim 1, characterized in that: The synchronous lifting mechanism comprises a fixed block (11), a convex block (12), a receiving block (13), a receiving frame (14), a connecting spring (17) and an extension rod (18); the upper surface of the fixed block (11) is fixedly installed on the lower surface of the connecting plate (10); the back surface of the convex block (12) is fixedly connected with the front surface of the fixed block (11); the inner wall of the back surface of the receiving block (13) is slidably connected with the outer surface of the convex block (12); the upper surface of the receiving frame (14) is fixedly connected with the lower surface of the receiving block (13); one end of the connecting spring (17) is fixedly installed on the lower surface of the connecting plate (10); and one end of the extension rod (18) is fixedly installed on the lower surface of the connecting plate (10).

3. The laser engraving device for producing punched aluminum veneer according to claim 1, characterized in that: The multi-wheel follow-up mechanism comprises a hinged seat one (21), a rectangular plate (22), a hinged seat two (23), a rectangular frame (24), a U-shaped frame (25), a rotating shaft (26) and a profiling wheel (27); the back surface of the hinged seat one (21) is arranged in connection with the front surface of the vertical frame (20); one side of the rectangular plate (22) is fixedly installed on the hinged end of the hinged seat one (21); the hinged end of the hinged seat two (23) is fixedly installed on the other side of the hinged seat one (21); the upper surface of the rectangular frame (24) is fixedly installed on the lower surface of the hinged seat two (23); the upper surface of the U-shaped frame (25) is fixedly connected with the lower surface of the rectangular frame (24); the outer surface of the rotating shaft (26) is rotatably connected with the inner wall of the U-shaped frame (25); and the inside of the profiling wheel (27) is fixedly installed on the outer surface of the rotating shaft (26).

4. The laser engraving device for producing punched aluminum veneer according to claim 2, characterized in that: The inside of the receiving block (13) is slidably connected with the outer surface of the fixed block (11); the lower surface of the receiving frame (14) is fixedly installed with a placing plate (15); and the lower surface of the placing plate (15) is arranged with a laser engraving head (16).

5. The laser engraving device for producing punched aluminum veneer according to claim 2, characterized in that: The left side of the receiving block (13) is fixedly installed with an extension frame (19); and the lower surface of the extension frame (19) is fixedly installed on the upper surface of the vertical frame (20).

6. The laser engraving device for producing punched aluminum veneer according to claim 5, characterized in that: The upper surface of the extension frame (19) is fixedly connected with one end of the extension rod (18); and the upper surface of the extension frame (19) is fixedly connected with one end of the connecting spring (17).

7. The laser engraving device for producing punched aluminum veneer according to claim 3, characterized in that: The outer surface of the rectangular frame (24) is slidably connected with a cross frame (28), the upper surface of the cross frame (28) is fixedly installed with a damping rod (29), one end of the damping rod (29) is fixedly connected with the lower surface of the vertical frame (20). 8.The laser engraving device for producing punched aluminum veneer according to claim 1, characterized in that: The both sides of the upper surface of the carving table (1) are fixedly installed with electric sliding rails (2), the outer surface of the electric sliding rails (2) is slidably connected with sliding frames (3), and the lower surface of the sliding frames (3) is arranged in abutment with the upper surface of the carving table (1). 9.The laser engraving device for producing punched aluminum veneer according to claim 8, characterized in that: The upper surface of the sliding frame (3) is fixedly installed with a connecting frame (4), the upper surface of the connecting frame (4) is provided with a hydraulic cylinder (5), and one end of the output shaft of the hydraulic cylinder (5) is fixedly connected with the upper surface of the connecting plate (10).

10. The laser engraving device for producing punched aluminum veneer according to claim 1, characterized in that: The inside of the carving table (1) is provided with a through groove (6), the both sides of the inside upper surface of the through groove (6) are fixedly installed with electric sliding rails (7), the outer surface of the electric sliding rails (7) is slidably connected with a bearing plate (8), the inside of the bearing plate (8) is provided with a placing groove (9), and the lower surface of the bearing plate (8) is arranged in abutment with the inside upper surface of the through groove (6).

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