Laser step-by-step drilling equipment suitable for multi-layer composite material

Abstract

The invention relates to the field of laser processing equipment, and discloses laser step-by-step drilling equipment suitable for a multi-layer composite material, the laser step-by-step drilling equipment comprises a supporting frame, a workbench is fixedly connected to the top of the supporting frame, a base is fixedly connected to the top of the workbench, and a moving assembly is arranged at the top of the base; a spraying assembly is arranged outside the moving assembly, a power generation assembly is arranged in the middle of the supporting frame and used for combining the power generation assembly with the heat exchange assembly to conduct waste heat recovery on the laser assembly, and a clamping assembly is arranged outside the moving assembly. Recycling and reusing of laser waste heat are achieved through closed-loop linkage of the power generation assembly and the heat exchange assembly, waste heat generated when the laser generator works is absorbed by an external heat exchanger, and a low-boiling-point organic working medium in a pipe is heated, vaporized and expanded. The steam working medium pushes the micro turbine generator in the middle of the supporting frame to operate, and waste heat is converted into electric energy.

Description

Technical Field

[0001] This invention relates to the field of laser processing equipment, specifically to a laser step-by-step drilling device suitable for multilayer composite materials. Background Technology

[0002] Existing laser drilling equipment relies on the integration of a laser source, a multi-axis motion positioning system, a workpiece clamping system, and a main control system to achieve its functions. When processing multi-layer composite materials, the equipment first positions the material to be processed at designated coordinates using the motion system, and then fixes it in place by the clamping system. The control system then instructs the laser to ablate the first layer of material according to a preset program.

[0003] However, several inherent technical problems exist in the actual operation of existing technical solutions. First, in the control stage of interlayer transition, when the laser beam penetrates one layer of material and enters the next layer of material with different properties, although the control system can trigger the switching of laser parameters through sensor signals, the inherent delay in system response leads to discontinuity in the processing state. During this delay, the high-energy laser set for hard materials will continue to act on soft materials with weaker physical properties, which can easily cause excessive ablation, carbonization, or other thermal damage zones on the latter's surface. At the same time, the smoke and particulate molten material generated during the laser ablation process, if there is no effective real-time removal mechanism, will adhere to the surface of optical components (such as focusing lenses and various optical sensors) inside the equipment, forming optical contamination. This will directly reduce the beam quality and the accuracy of the detection signal, causing the equipment performance to degrade over time and increasing maintenance frequency and costs.

[0004] Secondly, regarding workpiece fixation and stability, traditional clamping devices typically provide rigid locking, primarily to prevent macroscopic displacement of the workpiece. This rigid connection, while transmitting clamping force, also directly transmits the high-frequency micro-vibrations generated by laser ablation to the workpiece and the machine bed. This vibration transmission affects the relative positional stability between the laser focus and the workpiece, posing a challenge to micrometer-level drilling accuracy. Applying excessive clamping force to avoid vibration can cause stress damage to brittle or low-strength materials.

[0005] Finally, regarding overall energy management, a significant portion of the input electrical energy of the laser is dissipated as waste heat during operation. Existing equipment typically treats this waste heat as a pure load, discharging it into the environment through active cooling systems such as air or water cooling. These cooling systems themselves consume additional electrical energy to operate, which not only increases the overall power consumption of the equipment but also results in a direct waste of a large amount of usable heat energy, reducing the overall energy efficiency of the equipment. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a laser step-by-step drilling device suitable for multilayer composite materials, which solves the problems of damage to the lower layer material due to parameter switching delays during the interlayer transition stage and low overall energy utilization rate of the device due to the direct emission of laser waste heat.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a laser step-by-step drilling device suitable for multi-layer composite materials, comprising a support frame, a worktable fixedly connected to the top of the support frame, a base fixedly connected to the top of the worktable, a moving component disposed on the top of the base, a spraying component disposed outside the moving component, a power generation component disposed in the middle of the support frame, for the power generation component to combine with the heat exchange component to recover waste heat from the laser component, and a clamping component disposed outside the moving component;

[0008] The heat exchange assembly includes a heat exchanger, which is fixedly connected to the top of the workbench. One end of the heat exchanger is fixedly connected to an annular sealed resonant tube, and the other end of the heat exchanger is fixedly connected to a second pipe. A condenser is fixedly connected to the outside of the second pipe.

[0009] Preferably, the spraying assembly includes a liquid storage tank, which is fixedly connected to the outside of the movable assembly. A regulating valve is provided in the middle of the liquid storage tank. A fixing frame is fixedly connected to the outside of the movable assembly. The liquid storage tank is fixedly connected to the top of the fixing frame. A nozzle is fixedly connected to the middle of the liquid storage tank.

[0010] Preferably, the power generation component includes a micro turbine generator, which is fixedly connected to the middle of the support frame. A radiator is fixedly connected to the outside of the support frame, and a working fluid pump is fixedly connected to the outside of the radiator. The output end of the working fluid pump is fixedly connected to a pipe, and the other end of the pipe is fixedly connected to the middle of the condenser.

[0011] Preferably, the moving component includes a slide rail, which is fixedly connected to the top of the base. A motor is fixedly connected to the middle of the slide rail, and a threaded rod is fixedly connected to the output end of the motor. A slider is threadedly connected to the external thread of the threaded rod, and the clamping component is disposed on the top of the slider.

[0012] Preferably, the moving component further includes a second motor, which is fixedly connected to the middle of the base. The output end of the second motor is fixedly connected to a second threaded rod, and the slide rail is threadedly connected to the outside of the second threaded rod.

[0013] Preferably, the moving component further includes a support column, which is fixedly connected to the top of the base. A cylinder is fixedly connected to the middle of the support column, a connecting block is fixedly connected to the output end of the cylinder, a mounting frame is fixedly connected to the outside of the connecting block, and an optical detector is fixedly connected to the top of the mounting frame.

[0014] Preferably, the laser assembly includes a laser generator, which is fixedly connected to the top of the worktable. An optical positioning device is electrically connected to the outside of the laser generator, and a spectrometer is electrically connected to the outside of the optical positioning device. A laser point is fixedly connected to the bottom of the spectrometer.

[0015] Preferably, the clamping assembly includes a housing, which is fixedly connected to the top of the slider. A motor is fixedly connected to the top of the slider. A worm gear is fixedly connected to the output end of the motor. A worm wheel is rotatably connected inside the housing. The worm gear meshes with the worm wheel. A coil spring is fixedly connected to the top of the worm wheel. A clamp is snapped onto the outside of the coil spring. The clamp is slidably connected to the middle of the housing.

[0016] Preferably, the support column is fixedly connected to an external mounting plate, the mounting plate is fixedly connected to an external air duct, the end of the air duct is fixedly connected to an air box, the bottom of the air box is fixedly connected to an air hood, and the air hood has an intake port in the middle.

[0017] Preferably, a top shell is fixedly connected to the top of the support column, and a pulley one and a pulley two are rotatably connected to the middle of the top shell. A synchronous belt is sleeved on the outside of the pulley one and the pulley two. One end of the synchronous belt is fixedly connected to the middle of the mounting frame, and a counterweight is fixedly connected to the other end of the synchronous belt. A base is fixedly connected to the bottom of the support frame, a windproof plate is fixedly connected to the middle of the support frame, and a chip collection box is fixedly connected to the top of the workbench.

[0018] This invention provides a laser step-by-step drilling device suitable for multilayer composite materials. It features the following:

[0019] Beneficial effects:

[0020] 1. This invention achieves the recovery and reuse of laser waste heat through closed-loop linkage between the power generation component and the heat exchange component. Waste heat generated during laser generator operation is absorbed by an external heat exchanger, while the low-boiling-point organic working fluid inside the tube vaporizes and expands. The vaporized fluid drives a micro-turbine generator in the middle of the support frame, converting the waste heat into electrical energy to power auxiliary components of the equipment, thus achieving energy recovery. On the other hand, the vaporized fluid enters the heat exchanger at the top of the workbench, where it exchanges heat with the low-temperature medium. After its temperature decreases, it is transported through pipe two to the condenser and condensed into a liquid working fluid. The condensed liquid working fluid is further cooled by an external radiator on the support frame, and then the working fluid pump draws it back from the condenser to the annular closed resonant tube through pipe one, completing the working fluid cycle, reducing heat loss from the laser generator, and improving the overall energy utilization rate of the equipment.

[0021] 2. This invention achieves stable fixation and precise calibration of the processing position of multi-layer composite materials through the synergy of the clamping and moving components. The multi-layer composite material to be processed is placed on the clamping component at the top of the slider. The motor at the top of the slider drives the worm gear to rotate. The worm gear meshes with the worm wheel inside the housing, utilizing the self-locking characteristics of the worm gear to prevent the material from loosening in the reverse direction after clamping. The coil spring at the top of the worm wheel undergoes elastic deformation as the worm wheel rotates, causing the clamp to clamp the material along the guide structure in the middle of the housing. The elastic buffer of the coil spring avoids material damage caused by hard contact, thus completing the stable clamping of the material. By using the clamping component in conjunction with the moving component to perform perforation on the multi-layer material, the interlayer boundaries and the starting point of the perforation are determined, completing the positioning calibration.

[0022] 3. In the multi-layer heterogeneous material processing of this invention, the spraying component sprays a softening material protective liquid through a storage tank, regulating valve, and nozzle. This avoids the formation of light spot impurities on the surface of the soft material due to parameter adjustment gaps when the laser switches from a hard material to a soft material, effectively protecting the structural integrity of the soft material and ensuring that the performance requirements are met after drilling in each layer of material. At the same time, the wind box creates negative pressure inside the wind hood, collecting the light smoke generated by laser drilling through the suction port. This prevents the light smoke from adhering to the surface of internal components (such as laser generators and optical detectors) and causing light pollution, reducing component performance degradation, lowering the probability of equipment failure, thereby extending the overall service life of the equipment and reducing maintenance costs. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present invention;

[0024] Figure 2 This is a schematic diagram of the base of the present invention;

[0025] Figure 3 This is a front view of the present invention;

[0026] Figure 4 This is a schematic diagram of the laser generator of the present invention;

[0027] Figure 5 This is a schematic diagram of the slide rail of the present invention;

[0028] Figure 6 This is a schematic diagram of the support column of the present invention;

[0029] Figure 7 This is a schematic diagram of the worm gear of the present invention;

[0030] Figure 8 This is a schematic diagram of the air duct of the present invention;

[0031] Figure 9 for Figure 2 Enlarged view of point A in the middle.

[0032] The components are as follows: 1. Support frame; 2. Workbench; 3. Windproof plate; 4. Base; 5. Slide rail; 6. Air box; 7. Column; 8. Optical positioning instrument; 9. Condenser; 10. Base; 11. Laser generator; 12. Air duct; 13. Annular sealed resonant tube; 14. Shell; 15. Chip collection box; 16. Pipe 1; 17. Micro turbine generator; 18. Heat exchanger; 19. Radiator; 20. Working fluid pump; 21. Pipe 2; 22. Nozzle; 23. Air cover; 24. Threaded rod 1; 25. 1. Slider; 26. Motor 1; 27. Mounting bracket; 28. Motor 2; 29. ​​Threaded rod 2; 30. Optical detector; 31. Spectrometer; 32. Laser spot; 33. Cylinder; 34. Connecting block; 35. Pulley 1; 36. Pulley 2; 37. Top shell; 38. Synchronous belt; 39. Coil spring; 40. Clamp; 41. Worm gear; 42. Worm wheel; 43. Motor 4; 44. Fixture; 45. Suction port; 46. Mounting plate; 47. Liquid storage tank; 48. Regulating valve; 49. Counterweight. Detailed Implementation

[0033] The technical solutions in 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.

[0034] See appendix Figure 1 - Appendix Figure 4 This invention provides a laser step-by-step drilling device suitable for multi-layer composite materials, including a support frame 1, a worktable 2 fixedly connected to the top of the support frame 1, a base 10 fixedly connected to the top of the worktable 2, a moving component on the top of the base 10, a spraying component on the outside of the moving component, a power generation component in the middle of the support frame 1 for the power generation component to combine with the heat exchange component to recover waste heat from the laser component, and a clamping component on the outside of the moving component.

[0035] The heat exchange assembly includes a heat exchanger 18, which is fixedly connected to the top of the workbench 2. One end of the heat exchanger 18 is fixedly connected to an annular sealed resonant tube 13, and the other end of the heat exchanger 18 is fixedly connected to a pipe 21. A condenser 9 is fixedly connected to the outside of the pipe 21. The power generation assembly includes a micro turbine generator 17, which is fixedly connected to the middle of the support frame 1. A radiator 19 is fixedly connected to the outside of the support frame 1, and a working fluid pump 20 is fixedly connected to the outside of the radiator 19. The output end of the working fluid pump 20 is fixedly connected to a pipe 16, and the other end of the pipe 16 is fixedly connected to the middle of the condenser 9.

[0036] Specifically, by installing the heat exchanger 18 outside the laser generator 11, a closed loop is formed using the internal flow channels of the heat exchanger 18; the heat exchanger 18 acts as an evaporator and is tightly connected to the heat source of the laser component through heat conduction. The liquid organic working fluid, pressurized by the working fluid pump 20, is transported to the internal flow channels of the heat exchanger 18 through pipe 16. Inside the flow channels, the liquid working fluid absorbs the waste heat transferred by the laser component, its temperature rises, and it undergoes a phase change, transforming into a high-temperature, high-pressure gaseous working fluid. The high-temperature, high-pressure gaseous working fluid exiting the heat exchanger 18 is guided into the micro-turbine generator 17 in the power generation component fixed in the middle of the support frame 1. The gaseous working fluid expands in the turbine section inside the micro-turbine generator 17, driving the turbine impeller to rotate at high speed, converting the thermal energy of the working fluid into the rotational mechanical energy of the turbine, while the working fluid itself becomes a low-pressure, low-temperature gas. The micro-generator, coaxially connected to the turbine, rotates accordingly, converting mechanical energy into electrical energy output. The low-pressure gaseous working fluid is discharged from the micro-turbine generator 17 and flows into the condenser 9. The condenser 9 and the external radiator 19 form a heat dissipation system, dissipating heat from the working fluid to the surrounding environment. Inside the condenser 9, the gaseous working fluid condenses due to cooling, changing phase to liquid. The liquid working fluid flows out of the condenser 9 and enters the working fluid pump 20. The working fluid pump 20 pressurizes the liquid working fluid to the pressure required for it to re-enter the heat exchanger 18. The pressurized liquid working fluid is then pumped back to the heat exchanger 18 through pipe 16, thus completing a closed, continuously operating thermodynamic cycle.

[0037] See appendix Figure 2 - Appendix Figure 9 The spraying assembly includes a liquid storage tank 47, which is fixedly connected to the outside of the movable assembly. A regulating valve 48 is provided in the middle of the liquid storage tank 47. A fixing frame 44 is fixedly connected to the outside of the movable assembly. The liquid storage tank 47 is fixedly connected to the top of the fixing frame 44. A nozzle 22 is fixedly connected to the middle of the liquid storage tank 47.

[0038] Specifically, the bottom of the storage tank 47 is connected to a delivery pipeline, and a Yangpu miniature pressure pump and a regulating valve 48 are installed on the outside of the pipeline. The miniature pressure pump is used to provide the pressure required for delivery of the liquid in the pipeline. The regulating valve 48 can precisely control the opening and closing of the delivery pipeline and regulate the flow rate of the sprayed liquid within milliseconds according to the command. The outlet end of the regulating valve 48 is connected to the nozzle 22 through the delivery pipeline. The nozzle 22 is set outside the light outlet of the laser component, and its spray axis is coaxial with the central axis of the laser beam, which can accurately guide the liquid to the focal area of ​​the laser beam on the workpiece surface. The spraying component can trigger a command at the moment when the optical detector 30 or the spectrometer 31 determines that the interlayer is about to penetrate, and inject the protective liquid in the storage tank 47 into the bottom of the forming hole in the form of atomization or liquid column, so as to achieve physical buffering and isolation protection for the next layer of soft material.

[0039] See appendix Figure 1 - Appendix Figure 6 The moving assembly includes a slide rail 5, which is fixedly connected to the top of the base 10. A motor 26 is fixedly connected to the middle of the slide rail 5. A threaded rod 24 is fixedly connected to the output end of the motor 26. A slider 25 is threadedly connected to the outside of the threaded rod 24. A clamping assembly is disposed on the top of the slider 25. The moving assembly also includes a second motor 28, which is fixedly connected to the middle of the base 10. A threaded rod 29 is fixedly connected to the output end of the motor 28. The slide rail 5 is threadedly connected to the outside of the threaded rod 29. The moving assembly also includes a support column 7, which is fixedly connected to the top of the base 10. A cylinder 33 is fixedly connected to the middle of the support column 7. A connecting block 34 is fixedly connected to the output end of the cylinder 33. A mounting bracket 27 is fixedly connected to the outside of the connecting block 34. An optical detector 30 is fixedly connected to the top of the mounting bracket 27.

[0040] Specifically, motor 28 drives threaded rod 29 to rotate, causing slide rail 5 to move longitudinally along the horizontal axis. Motor 26 is mounted on slide rail 5, driving threaded rod 24 to rotate, and slider 25 slides on slide rail 5. When motor 26 is working, threaded rod 24 drives slider 25 to move laterally along the horizontal axis. Since the clamping assembly is located on top of slider 25, the precise positioning of the workpiece at any point in the horizontal working plane is achieved through the actions of motor 26 and motor 28. Cylinder 33 in the middle of support column 7 drives mounting frame 27 to be fixed outside the connecting block 34 via connecting block 34. When cylinder 33 extends or retracts, it drives mounting frame 27 to move up and down. Since core processing and inspection units such as laser component and optical inspection instrument 30 are integrated on mounting frame 27, it is used to adjust the vertical position of laser focus relative to workpiece surface, achieving initial focusing and progressive downward movement during step-by-step drilling.

[0041] See appendix Figure 1 Appendix Figure 3 Appendix Figure 5 and attached Figure 7 The clamping assembly includes a housing 14, which is fixedly connected to the top of a slider 25. A motor 43 is fixedly connected to the top of the slider 25. A worm gear 41 is fixedly connected to the output end of the motor 43. A worm wheel 42 is rotatably connected inside the housing 14. The worm gear 41 meshes with the worm wheel 42. A coil spring 39 is fixedly connected to the top of the worm wheel 42. A clamp 40 is snapped onto the outside of the coil spring 39. The clamp 40 is slidably connected to the middle of the housing 14.

[0042] Specifically, the starting motor 43 drives the worm gear 41 to rotate. The worm gear 41 meshes with the worm wheel 42, and the worm gear 41 drives the worm wheel 42 to rotate. Utilizing the self-locking characteristic of the worm gear 41-worm wheel 42 transmission structure, the clamping torque is stably maintained after the motor 43 stops working, fixing the multi-layered material onto the fixture 40. The rotation of the worm wheel 42 causes the coil spring 39 to twist or curl. The fixture 40 is connected to the outer edge of the coil spring 39 by snap-fit ​​or linkage and is constrained to slide on the guide rail inside the housing 14. When the coil spring 39 deforms due to the rotation of the worm wheel 42, the resulting elastic restoring force pushes the fixture 40 to tighten towards the center, thereby applying and maintaining a stable clamping force on the multi-layered material. During laser processing, the instantaneous ablation of the material by the laser beam generates high-frequency mechanical impact and vibration. Since the material to be processed is connected and fixed by the fixture 40 and the elastic coil spring 39, rather than being rigidly connected, the coil spring 39 can act as a mechanical buffer, absorbing and dissipating some of the vibration energy transmitted from the processing point, thereby suppressing the small displacement of the material to be processed and ensuring the positioning stability and accuracy of the laser focus during the processing.

[0043] See appendix Figure 5 and attached Figure 6 The laser assembly includes a laser generator 11, which is fixedly connected to the top of the worktable 2. An optical positioning device 8 is electrically connected to the outside of the laser generator 11. A spectrometer 31 is electrically connected to the outside of the optical positioning device 8. A laser point 32 is fixedly connected to the bottom of the spectrometer 31.

[0044] Specifically, before processing, the material is scanned using an optical positioning instrument 8 to locate the coordinates of the drilling points. After processing begins, the laser generator 11, fixed on the worktable 2, generates a laser beam according to the characteristics of the current material layer. This beam is guided to the movable processing head and drills holes in the material through the laser point 32. During the operation, the spectrometer 31 can monitor the spectral signal generated by the processing point in real time to determine that the interlayer interface has been reached, thus realizing highly adaptive and precisely controlled layer processing of multilayer composite materials.

[0045] See appendix Figure 1- Appendix Figure 8 The support column 7 is externally fixedly connected to a mounting plate 46, and an air duct 12 is externally fixedly connected to the mounting plate 46. An air box 6 is fixedly connected to the end of the air duct 12, and an air cover 23 is fixedly connected to the bottom of the air box 6. An air inlet 45 is provided in the middle of the air cover 23. The top of the support column 7 is fixedly connected to a top shell 37, and a pulley 35 and a pulley 36 are rotatably connected to the middle of the top shell 37. A synchronous belt 38 is fitted around the pulley 35 and the pulley 36. One end of the synchronous belt 38 is fixedly connected to the middle of the mounting frame 27, and the other end of the synchronous belt 38 is fixedly connected to a counterweight 49. The bottom of the support frame 1 is fixedly connected to a base 4, and a windproof plate 3 is fixedly connected to the middle of the support frame 1. A chip collection box 15 is fixedly connected to the top of the workbench 2.

[0046] Specifically, the blower inside the air box 6 generates negative pressure after startup. This negative pressure is transmitted to the air hood 23 through the air duct 12. The air hood 23 is installed directly above the processing area, with the suction port 45 facing the laser processing point. During processing, the smoke and particles generated by laser ablation of materials are effectively drawn in from the suction port 45 by this negative pressure system, passing through the air hood 23 and air duct 12 into the air box 6 for collection and filtration, thereby maintaining the cleanliness of the processing area and preventing smoke and dust from contaminating the optical components. The chip collection box 15 is used to collect larger solid waste generated during processing. The weight of the mounting frame 27 is balanced by the weight of the counterweight 49, reducing the load on the cylinder 33 that drives the lifting and lowering of the mounting frame 27, making the lifting and lowering movement smoother, faster, and more precise, and reducing energy consumption.

[0047] Working principle: The multi-layer material to be processed is placed on the top clamping assembly of the slider 25. The worm 41 is driven to rotate by the motor 43. Since the worm 41 meshes with the worm wheel 42, the worm 41 drives the worm wheel 42 to rotate, thereby causing the coil spring 39 to deform. This causes the clamp 40 to slide inside the housing 14 to clamp the multi-layer material. The coil spring 39 can buffer the processing vibration during the operation of this device, so that the laser focus is accurately positioned.

[0048] During operation, multi-dimensional precise positioning is achieved by moving components. Motor 28 drives threaded rod 29 to adjust slide rail 5 in the lateral position. Motor 26 drives threaded rod 24 to move slider 25 to adjust the position of clamping components. Cylinder 33 pushes mounting bracket 27 to lift and lower to adjust the height of laser components. When the height of laser components needs to be adjusted, pulley 35 and pulley 36 inside top shell 37 rotate to adjust balance. Synchronous belt 38 and counterweight 49 balance the load. Optical positioning instrument 8 and optical inspection instrument 30 work together to calibrate interlayer boundaries and drilling starting points.

[0049] In the core processing stage, the laser generator 11 adjusts its parameters according to the characteristics of the material layers, the spectrometer 31 detects the laser spectrum to ensure compatibility, and the cylinder 33 pushes the laser point 32 to feed and drill layer by layer, completing the layered processing. During processing, the spraying component sprays a softening material protective liquid through the liquid storage tank 47, the regulating valve 48, and the nozzle 22. This prevents the laser from penetrating a hard material such as titanium alloy and immediately entering the next soft material such as resin matrix, where the laser parameters cannot be adjusted in time, resulting in light spots and impurities on the surface of the soft material, affecting the integrity of the material structure. By activating the bellows 6, a negative pressure is created inside the wind hood 23, and the light smoke generated by the laser during drilling is collected through the suction port 45 to prevent light pollution from the internal equipment and affect the service life of the equipment. The working fluid is vaporized by absorbing the waste heat of the laser generator 11 through the annular closed resonant tube 13, which drives the micro turbine generator 17 to generate electricity. The working fluid is recycled through the heat exchanger 18, condenser 9, radiator 19 and working fluid pump 20 to recover the heat generated during operation and convert waste heat into electrical energy. This achieves partial energy self-sufficiency for the equipment and adds an endogenous and stable power source for backup power supply of key sensors, improving the stability of the equipment when the power grid fluctuates.

Claims

1. A laser step-by-step drilling device suitable for multilayer composite materials, characterized in that, include: A support frame (1) is fixedly connected to a workbench (2) at the top of the support frame (1). A base (10) is fixedly connected to the top of the workbench (2). A moving component is provided on the top of the base (10). A spraying component is provided outside the moving component. A power generation component is provided in the middle of the support frame (1). The power generation component is used to combine with the heat exchange component to recover waste heat from the laser component. A clamping component is provided outside the moving component. The heat exchange assembly includes a heat exchanger (18), which is fixedly connected to the top of the workbench (2). One end of the heat exchanger (18) is fixedly connected to an annular closed resonant tube (13), and the other end of the heat exchanger (18) is fixedly connected to a pipe (21). A condenser (9) is fixedly connected to the outside of the pipe (21).

2. The laser step-by-step drilling device for multilayer composite materials according to claim 1, characterized in that, The spraying assembly includes a liquid storage tank (47), which is fixedly connected to the outside of the movable assembly. A regulating valve (48) is provided in the middle of the liquid storage tank (47). A fixing frame (44) is fixedly connected to the outside of the movable assembly. The liquid storage tank (47) is fixedly connected to the top of the fixing frame (44). A nozzle (22) is fixedly connected to the middle of the liquid storage tank (47).

3. The laser step-by-step drilling device suitable for multilayer composite materials according to claim 1, characterized in that, The power generation assembly includes a micro turbine generator (17), which is fixedly connected to the middle of the support frame (1). A radiator (19) is fixedly connected to the outside of the support frame (1), and a working fluid pump (20) is fixedly connected to the outside of the radiator (19). A pipe (16) is fixedly connected to the output end of the working fluid pump (20), and the other end of the pipe (16) is fixedly connected to the middle of the condenser (9).

4. The laser step-by-step drilling device suitable for multilayer composite materials according to claim 1, characterized in that, The moving component includes a slide rail (5), which is fixedly connected to the top of the base (10). A motor (26) is fixedly connected to the middle of the slide rail (5). A threaded rod (24) is fixedly connected to the output end of the motor (26). A slider (25) is threadedly connected to the external thread of the threaded rod (24). The clamping component is disposed on the top of the slider (25).

5. A laser step-by-step drilling device suitable for multilayer composite materials according to claim 4, characterized in that, The moving component also includes a second motor (28), which is fixedly connected to the middle of the base (10). The output end of the second motor (28) is fixedly connected to a second threaded rod (29), and the slide rail (5) is threadedly connected to the outside of the second threaded rod (29).

6. A laser step-by-step drilling device suitable for multilayer composite materials according to claim 3, characterized in that, The moving component also includes a support column (7), which is fixedly connected to the top of the base (10). A cylinder (33) is fixedly connected to the middle of the support column (7). A connecting block (34) is fixedly connected to the output end of the cylinder (33). A mounting bracket (27) is fixedly connected to the outside of the connecting block (34). An optical detector (30) is fixedly connected to the top of the mounting bracket (27).

7. A laser step-by-step drilling device suitable for multilayer composite materials according to claim 1, characterized in that, The laser assembly includes a laser generator (11), which is fixedly connected to the top of the workbench (2). An optical positioning device (8) is electrically connected to the outside of the laser generator (11), and a spectrometer (31) is electrically connected to the outside of the optical positioning device (8). A laser spot (32) is fixedly connected to the bottom of the spectrometer (31).

8. A laser step-by-step drilling device suitable for multilayer composite materials according to claim 4, characterized in that, The clamping assembly includes a housing (14), which is fixedly connected to the top of the slider (25). A motor (43) is fixedly connected to the top of the slider (25). A worm gear (41) is fixedly connected to the output end of the motor (43). A worm wheel (42) is rotatably connected inside the housing (14). The worm gear (41) meshes with the worm wheel (42). A coil spring (39) is fixedly connected to the top of the worm wheel (42). A clamp (40) is snapped onto the outside of the coil spring (39). The clamp (40) is slidably connected to the middle of the housing (14).

9. A laser step-by-step drilling device suitable for multilayer composite materials according to claim 6, characterized in that, The support column (7) is fixedly connected to the outside of the mounting plate (46), the mounting plate (46) is fixedly connected to the outside of the air duct (12), the end of the air duct (12) is fixedly connected to the air box (6), the bottom of the air box (6) is fixedly connected to the air cover (23), and the air cover (23) has an intake port (45) in the middle.

10. A laser step-by-step drilling device suitable for multilayer composite materials according to claim 6, characterized in that, The top of the support column (7) is fixedly connected to a top shell (37). The middle of the top shell (37) is rotatably connected to a pulley one (35) and a pulley two (36). A synchronous belt (38) is sleeved on the outside of the pulley one (35) and the pulley two (36). One end of the synchronous belt (38) is fixedly connected to the middle of the mounting frame (27), and the other end of the synchronous belt (38) is fixedly connected to a counterweight block (49). The bottom of the support frame (1) is fixedly connected to a base (4). The middle of the support frame (1) is fixedly connected to a windproof plate (3). The top of the workbench (2) is fixedly connected to a chip collection box (15).

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