Automatic optical fiber laser cutting device and cutting method thereof

Abstract

The invention relates to the technical field of optical fiber laser cutting, and discloses an automatic optical fiber laser cutting device and a cutting method thereof.The device comprises a device rack, a laser cutting head and a flue gas treatment assembly; the flue gas treatment assembly comprises an adjusting seat ring and a rotating seat ring, the air blowing connector blows air while rotating along with the rotating seat ring, and the air blowing connector and the rotating seat ring jointly define a conical protective gas hood so as to cover flue gas generated by laser cutting in the protective gas hood; the air suction connector is used for sucking smoke in the protective gas hood. The smoke diffusion prevention and collection efficiency is high, the dynamic conical gas hood formed through rotation covers and cuts the smoke in a full range, irregular diffusion of the smoke is avoided fundamentally, and the smoke treatment efficiency is greatly improved by cooperating with synchronous suction of the inner side gas suction connector. The covering range of the gas hood can be flexibly adjusted, and the smoke treatment requirements of different cutting working conditions can be met. The smoke suction precision is high, and smoke is sucked in a targeted mode in a closed space formed by the gas hood.

Description

Technical Field

[0001] This invention relates to the field of fiber laser cutting technology, and specifically to an automated fiber laser cutting device and its cutting method. Background Technology

[0002] Fiber optic automated laser cutting equipment is an important automated processing device in the field of laser cutting technology. It is mainly used for laser cutting of various workpieces. With the high precision and high efficiency of laser cutting, it is widely used in many industrial fields such as machinery manufacturing, fiber optic processing, and hardware processing. Its core is to achieve precise cutting of workpieces by emitting lasers from the laser cutting head, and complete continuous and standardized cutting operations with the help of an automated drive structure, so as to meet the needs of industrial production for workpiece cutting precision, efficiency and automation.

[0003] A laser cutting device for a fiber laser cutting system is disclosed in the prior art (application number CN202111304841.8). It includes a fiber optic cutting table assembly and a laser cutting head. The laser cutting head body includes a cutting head body and a laser emitting module. A focusing assembly is provided between the cutting head body and the laser emitting module. The focusing assembly includes a mounting base and a focusing cylinder, and a focusing lens is provided inside the focusing cylinder. After the laser focal length position adjustment operation is completed, the stable and tight fit between the focusing cylinder and the adjustment slide ensures that the center position of the laser head focal point is very stable before and after adjustment and will not easily change, thus ensuring cutting quality. Moreover, it eliminates the tedious process of readjusting the focal point center position, saving workload and facilitating use by technicians. It can be widely applied to the production of pre-embedded quick connector products and the field of fiber optic end face cutting operations with high requirements for on-site construction.

[0004] However, existing technologies, especially this particular solution, still have the following problems: Existing technologies only focus on optimizing the focusing stability of the laser cutting head, without setting up any fume treatment-related structures. The fumes generated during laser cutting will spread irregularly, polluting the working environment, endangering the health of operators, and failing to achieve centralized collection and treatment of fumes, posing significant environmental and safety hazards.

[0005] Existing technologies do not have a structure designed to control and treat fumes that are adapted to different cutting conditions. When cutting workpieces of different materials and thicknesses, the amount of fumes generated and the diffusion range vary. The existing technologies cannot adjust the fumes treatment range according to the actual working conditions, resulting in poor adaptability and difficulty in meeting the fumes treatment needs of diverse cutting scenarios.

[0006] Existing technologies have not achieved synchronous coordination between laser cutting operations and fume treatment. The fumes generated during the cutting process overflow directly and easily adhere to the surface of the workpiece to be cut, affecting cutting accuracy and product quality. At the same time, the fumes may interfere with the light output path of the laser cutting head, further affecting cutting stability. Summary of the Invention

[0007] The purpose of this invention is to provide a technical solution to address the problems in the prior art mentioned in the background section.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: An automated fiber laser cutting device includes: a device frame and a laser cutting head; A fume treatment component is provided on the outer periphery of the laser cutting head; The flue gas treatment assembly includes an adjusting seat ring and a rotating seat ring. The adjusting seat ring is coaxially sleeved on the outside of the laser cutting head, and the rotating seat ring is rotatably mounted on the outer ring of the adjusting seat ring. At least three sets of drive slide rails are installed circumferentially at the bottom of the rotating seat ring, and drive telescopic components are rotatably installed at the bottom of the slider of the drive slide rail via a drive shaft. The telescopic end of the drive telescopic component is oriented toward the light output direction of the laser cutting head, and each telescopic end of the drive telescopic component is fixedly equipped with an air blowing connector and an air suction connector. The air suction connector is located on the side of the corresponding air blowing connector that is close to the axis of the laser cutting head. All the air blowing joints blow air while the rotating seat ring rotates, together forming a cone-shaped protective gas hood to enclose the fumes generated by laser cutting inside the protective gas hood; all the air suction joints are used to suck up the fumes inside the protective gas hood.

[0009] Preferably, the outer side wall of the laser cutting head is fixed with a mounting base, and the adjusting seat ring is coaxially mounted on the outer periphery of the laser cutting head through the mounting base, and the adjusting seat ring can be adjusted in position along the axial direction of the laser cutting head through the mounting base.

[0010] Preferably, a rotary bearing for rotatable mounting is provided between the adjusting seat ring and the rotating seat ring, and a driver for actively driving the rotating seat ring is mounted on the adjusting seat ring. The output end of the driver is provided with a drive gear, and the top surface of the rotating seat is provided with a gear ring that meshes with the drive gear. The driver drives the rotating seat to rotate around the adjusting seat ring through the meshing of the drive gear and the gear ring.

[0011] Preferably, the drive slide rail is an electric linear slide rail, and the slider of the drive slide rail can reciprocate radially along the rotating seat ring to adjust the radial distance between the drive telescopic component and the axis of the laser cutting head; the drive shaft is a damping shaft with self-locking function, used to adjust and lock the pitch angle of the drive telescopic component relative to the bottom surface of the rotating seat ring.

[0012] Preferably, the tail end of the drive telescopic component is also provided with a circulating fan, and each of the air blowing joints is connected to the circulating fan through an air blowing pipe; All the suction connectors are connected to the gas-solid separation unit through suction pipes, and the air inlet of the circulating fan is connected to the clean air outlet of the gas-solid separation device, forming a circulating air path for blowing and suction.

[0013] Preferably, it also includes a flue gas concentration detection unit and a control unit. The flue gas concentration detection unit is used to detect the flue gas concentration at the laser cutting position in real time. The control unit is electrically connected to the control terminals of the flue gas concentration detection unit, the drive slide rail, the drive telescopic component, the driver, and the circulating fan. The control unit can adjust the coverage area of ​​the protective gas cover and the blowing and sucking power according to the detection data of the flue gas concentration detection unit.

[0014] Preferably, when the control unit adjusts the coverage area of ​​the protective air shield, it specifically performs the following operations: When an increase in flue gas concentration is detected, the control unit controls the slider of the drive slide rail to move away from the axis of the laser cutting head, while controlling the extension of the drive telescopic component and adjusting the outward tilt angle of the drive telescopic component through the drive shaft to expand the coverage area of ​​the protective gas shield. When a decrease in flue gas concentration is detected, the control unit controls the slider of the drive slide rail to move closer to the axis of the laser cutting head, while simultaneously controlling the drive telescopic component to shorten and adjusting the outward tilt angle of the drive telescopic component through the drive shaft to reduce the coverage area of ​​the protective gas shield.

[0015] Preferably, the device frame is provided with an adjusting crossbar, and multiple adjustable workpiece support frames are installed on the adjusting crossbar. The workpiece support frames are used to place the workpieces to be cut by the laser generator.

[0016] Preferably, the device frame is equipped with a three-dimensional moving module and a laser generator, and the laser generator and laser cutting head are mounted on the device frame via the three-dimensional moving module.

[0017] The present invention also provides an automated laser cutting method for optical fibers, based on an automated laser cutting device for optical fibers, comprising the following steps: S1. Workpiece clamping: Fix the workpiece to be cut on the processing station of the device frame, and adjust the laser cutting head to the cutting start position through the three-dimensional moving module. S2. Parameter preset: Based on the material and thickness of the workpiece to be cut, preset the laser cutting parameters, and at the same time preset the initial coverage area of ​​the protective air cover. Adjust the radial position, pitch angle and extension length of the drive telescopic component so that the air blowing directions of each air blowing joint surround and form the initial conical protective air cover. S3. Simultaneous processing of cutting and fumes: The laser cutting head is started to perform the cutting operation. At the same time, the drive component is started to drive the rotating seat ring to rotate. Each air blowing joint continuously blows air as the rotating seat ring rotates, forming a dynamically rotating conical protective air hood, which completely covers the fumes generated by cutting inside the protective air hood. Simultaneously, each air suction joint is started to continuously suck up and collect the fumes inside the protective air hood. S4. Adaptive adjustment of the gas hood: During the cutting process, the gas concentration at the cutting position is detected in real time, and the coverage area of ​​the protective gas hood is adjusted in real time according to the gas concentration; when the gas concentration increases, the coverage area of ​​the protective gas hood is expanded; when the gas concentration decreases, the coverage area of ​​the protective gas hood is reduced. S5. Finishing the operation: After the cutting operation is completed, turn off the laser cutting head, delay the closing of the air blowing and suction connectors, and stop the machine after all the flue gas has been collected.

[0018] Technical effects and advantages of the present invention: The fiber optic automated laser cutting device and its cutting method proposed in this invention have the following advantages compared with the prior art: This invention utilizes a device frame as a support base. While the laser cutting head performs the cutting operation, an adjusting seat ring coaxially sleeved on its outer side drives the outer rotating seat ring to rotate around the axis of the cutting head. The bottom of the rotating seat ring, through a drive slide rail and a drive shaft, drives the air blowing joint and the air suction joint to rotate synchronously. Multiple sets of air blowing joints rotate and blow air to form a conical protective air hood, which seals and covers the cutting fumes. At the same time, the inner air suction joint simultaneously draws in the fumes from the air hood, thus achieving simultaneous completion of cutting and fume treatment.

[0019] High efficiency in preventing smoke diffusion and collection: The rotating dynamic conical gas hood fully covers the cutting smoke, preventing its irregular diffusion at the source. Combined with synchronous suction from the inner suction connector, this significantly improves smoke treatment efficiency. Strong adaptability to different operating conditions: The coverage area of ​​the gas hood can be flexibly adjusted by controlling the radial direction of the drive rail, the angle of the drive shaft, and the length of the drive telescopic component to adapt to the smoke treatment needs of different cutting conditions. Compact structure that does not interfere with cutting: The smoke treatment components are coaxially integrated on the outer periphery of the laser cutting head, moving synchronously with it without occupying additional processing space or affecting the normal execution of the cutting operation. High precision in smoke extraction: The suction connector is located inside the blowing connector near the axis of the cutting head, allowing for targeted smoke extraction within the enclosed space formed by the gas hood, preventing smoke overflow and providing more targeted collection. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the fiber optic automated laser cutting device of the present invention; Figure 2 This is a schematic diagram of the front planar structure of the fiber optic automated laser cutting device of the present invention; Figure 3 This is a schematic diagram of the structure such as the laser cutting head in an embodiment of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram showing the working range of the air blowing connector and the air suction connector in an embodiment of the present invention; Figure 6 This is a schematic diagram of the adjusting seat ring and rotating seat ring in an embodiment of the present invention; Figure 7 This is a flowchart of the automated laser cutting method for optical fibers according to the present invention.

[0021] In the picture: 11. Device frame; 12. Adjusting crossbar; 13. Workpiece support frame; 14. Laser generator; 15. Laser cutting head; 21. Adjustable seat ring; 22. Rotating seat ring; 23. Driver; 24. Drive slide rail; 25. Drive shaft; 26. Rotary bearing; 27. Drive telescopic component; 28. Air blowing connector; 29. ​​Air suction connector; 210. Air blowing pipe; 211. Air suction pipe; 212. Circulating fan; 213. Mounting base. Detailed Implementation

[0022] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0023] The invention provides, for example Figures 1 to 7 As shown, an automated fiber laser cutting device includes: a device frame 11 and a laser cutting head 15; A flue gas treatment component is provided on the outer periphery of the laser cutting head 15; The flue gas treatment assembly includes an adjusting seat ring 21 and a rotating seat ring 22. The adjusting seat ring 21 is coaxially sleeved on the outside of the laser cutting head 15, and the rotating seat ring 22 is rotatably mounted on the outer ring of the adjusting seat ring 21. At least three sets of drive slide rails 24 are installed circumferentially at the bottom of the rotating seat ring 22, and drive telescopic components 27 are rotatably installed at the bottom of the slider of the drive slide rail 24 via the drive shaft 25. The telescopic end of the drive telescopic component 27 is arranged toward the light output direction of the laser cutting head 15, and each telescopic end of the drive telescopic component 27 is fixedly equipped with an air blowing connector 28 and an air suction connector 29. The air suction connector 29 is located on the side of the corresponding air blowing connector 28 that is close to the axis of the laser cutting head 15. All the air blowing joints 28 blow air while rotating with the rotating seat ring 22, together forming a cone-shaped protective gas shield to enclose the fumes generated by laser cutting inside the protective gas shield; all the air suction joints 29 are used to suck up the fumes inside the protective gas shield.

[0024] Working principle: With the device frame 11 as the supporting base, the laser cutting head 15 performs the cutting operation while the adjusting seat ring 21, which is coaxially sleeved on its outer side, drives the outer rotating seat ring 22 to rotate around the axis of the cutting head. The bottom of the rotating seat ring 22 drives the air blowing joint 28 and the air suction joint 29 to rotate synchronously through the drive slide rail 24 and the drive shaft 25. Multiple sets of air blowing joints 28 rotate and blow air to form a conical protective air hood, which seals and covers the cutting fumes. At the same time, the inner air suction joint 29 simultaneously draws the fumes from the air hood, so that cutting and fume treatment are completed simultaneously.

[0025] High efficiency in preventing smoke diffusion and collection: The rotating dynamic conical gas hood fully covers the cutting smoke, preventing its irregular diffusion at the source. Combined with synchronous suction from the inner suction connector 29, this significantly improves smoke treatment efficiency. Strong adaptability to different operating conditions: The coverage area of ​​the gas hood can be flexibly adjusted by the radial adjustment of the drive slide rail 24, the angle adjustment of the drive shaft 25, and the length adjustment of the drive telescopic component 27, adapting to the smoke treatment needs of different cutting conditions. Compact structure that does not interfere with cutting: The smoke treatment components are coaxially integrated on the outer periphery of the laser cutting head 15, moving synchronously with the cutting head without occupying additional processing space or affecting the normal execution of the cutting operation. High precision in smoke extraction: The suction connector 29 is located on the inner side of the blowing connector 28 near the axis of the cutting head, allowing for targeted extraction of smoke within the enclosed space formed by the gas hood, preventing smoke overflow and providing more targeted collection.

[0026] Regarding the installation and compatibility design of the flue gas treatment components around the laser cutting head 15, this solution has made targeted optimizations. By setting a mounting base 213 on the outer wall of the laser cutting head 15, the adjusting seat ring 21 can be adjusted in position along the axial direction of the laser cutting head 15 to adapt to flue gas treatment requirements under different cutting focal lengths and working conditions. The mounting base 213 is fixed to the outer wall of the laser cutting head 15, and the adjusting seat ring 21 is coaxially mounted on the outer periphery of the laser cutting head 15 through the mounting base 213, and the adjusting seat ring 21 can be adjusted in position along the axial direction of the laser cutting head 15 through the mounting base 213.

[0027] It should be noted that, in order to ensure the stability and driving accuracy of the rotation of the rotating seat ring 22, this solution has made special designs for its rotational mounting and driving structure. The smooth rotational engagement between the adjusting seat ring 21 and the rotating seat ring 22 is achieved through a rotary bearing 26, and the controllable active rotation of the rotating seat ring 22 is achieved through the meshing of gears and a gear ring driven by the driver 23. A rotary bearing 26 for rotational mounting is provided between the adjusting seat ring 21 and the rotating seat ring 22, and a driver 23 for actively driving the rotating seat ring 22 is mounted on the adjusting seat ring 21. The output end of the driver 23 is provided with a drive gear, and the top surface of the rotating seat ring 22 is provided with a gear ring that meshes with the drive gear. The driver 23 drives the rotating seat ring 22 to rotate around the adjusting seat ring 21 through the meshing of the drive gear and the gear ring.

[0028] To achieve flexible and precise adjustment of the coverage area of ​​the conical protective air shield, this solution features a refined design for the adjustment structure of the drive telescopic component 27. An electric linear slide rail 24 is used as the drive slide rail 24, which adjusts the radial installation position of the drive telescopic component 27. A damping shaft with a self-locking function is used as the drive shaft 25, which adjusts and locks the pitch angle of the drive telescopic component 27 to adapt to different air shield forming requirements. The drive slide rail 24 is an electric linear slide rail, and its slider can reciprocate radially along the rotating seat ring 22 to adjust the radial distance between the drive telescopic component 27 and the axis of the laser cutting head 15. The drive shaft 25 is a damping shaft with a self-locking function, used to adjust and lock the pitch angle of the drive telescopic component 27 relative to the bottom surface of the rotating seat ring 22.

[0029] For the air path system of blowing and suction, this solution establishes a closed-loop circulating air path architecture, taking into account both flue gas treatment efficiency and equipment energy consumption control. Air is supplied to the blowing connector 28 via the circulating fan 212 and the blowing pipe 210. The suction connector 29 is connected to the gas-solid separation unit via the suction pipe 211. The separated clean air flows back to the circulating fan 212, forming a circulating air path for blowing and suction. A circulating fan 212 is also provided at the tail of the drive telescopic component 27, and each of the blowing connectors 28 is connected to the circulating fan 212 via the blowing pipe 210. The suction connectors 29 are all connected to the gas-solid separation unit through the suction pipes 211, and the air inlet of the circulating fan 212 is connected to the clean air outlet of the gas-solid separation device, forming a circulating air path for blowing and sucking.

[0030] To achieve intelligent adaptive adjustment of flue gas treatment, this solution incorporates a real-time flue gas concentration feedback and linkage control architecture. A flue gas concentration detection unit collects real-time flue gas concentration data at the cutting position, and a control unit coordinates and adjusts the operating status of the drive slide rail 24, drive telescopic component 27, driver 23, and circulating fan 212, simultaneously adjusting the coverage area and blowing / suction power of the protective gas hood. The solution also includes a flue gas concentration detection unit and a control unit. The flue gas concentration detection unit detects the flue gas concentration at the laser cutting position in real time. The control unit is electrically connected to the control terminals of the flue gas concentration detection unit, drive slide rail 24, drive telescopic component 27, driver 23, and circulating fan 212. The control unit can adjust the coverage area and blowing / suction power of the protective gas hood based on the detection data from the flue gas concentration detection unit.

[0031] Furthermore, regarding the adaptive adjustment logic of the protective gas hood, this solution clarifies precise control rules linked to flue gas concentration to ensure accurate matching between the hood's range and the flue gas diffusion scale. When the flue gas concentration increases, the radial distance, extension, and outward tilt angle of the drive telescopic component 27 are simultaneously increased to expand the hood's range; when the flue gas concentration decreases, the hood's range is reduced in the opposite direction, balancing treatment effectiveness and operational energy consumption. When the control unit adjusts the coverage area of ​​the protective gas hood, it specifically performs the following operations: When an increase in flue gas concentration is detected, the control unit controls the slider of the drive slide rail 24 to move away from the axis of the laser cutting head 15, and at the same time controls the extension of the drive telescopic component 27 and adjusts the outward tilt angle of the drive telescopic component 27 through the drive rotating shaft 25 to expand the coverage area of ​​the protective gas shield. When a decrease in flue gas concentration is detected, the control unit controls the slider of the drive slide rail 24 to move closer to the axis of the laser cutting head 15, while controlling the drive telescopic component 27 to shorten and adjusting the outward tilt angle of the drive telescopic component 27 through the drive rotating shaft 25 to reduce the coverage area of ​​the protective gas shield.

[0032] Regarding the clamping and support structure for the workpiece to be cut, this solution adopts an adjustable adaptable design, compatible with workpieces of different specifications and sizes. An adjustable crossbar 12 is installed on the device frame 11, along with multiple sets of adjustable workpiece support frames 13, providing stable support for the workpiece to be cut. The device frame 11 is equipped with an adjustable crossbar 12, on which multiple sets of adjustable workpiece support frames 13 are mounted. The workpiece support frames 13 are used to hold the workpiece to be cut by the laser generator 14.

[0033] It should be added that, in order to achieve fully automated cutting operations of the laser cutting head 15, this solution is equipped with a high-precision three-dimensional motion drive architecture. A three-dimensional motion module is set on the device frame 11, and the laser generator 14 and the laser cutting head 15 are mounted on the three-dimensional motion module to realize automated movement and cutting of the cutting head in three-dimensional space. The device frame 11 is equipped with a three-dimensional motion module and a laser generator 14, and the laser generator 14 and the laser cutting head 15 are mounted on the device frame 11 through the three-dimensional motion module.

[0034] To complement the aforementioned automated fiber laser cutting device and achieve stable, efficient, and environmentally friendly fully automated cutting operations, this solution also provides a corresponding automated fiber laser cutting method. Through a complete process including workpiece clamping, parameter presetting, simultaneous cutting and fume treatment, adaptive gas hood adjustment, and operation completion, cutting quality is ensured while achieving efficient fume treatment throughout the entire process. This invention also provides an automated fiber laser cutting method based on the aforementioned automated fiber laser cutting device, comprising the following steps: S1. Workpiece clamping: Fix the workpiece to be cut on the workpiece support frame 13 of the device frame 11, and adjust the laser cutting head 15 to the cutting start position through the three-dimensional moving module. S2. Parameter preset: Based on the material and thickness of the workpiece to be cut, preset the laser cutting parameters and the initial coverage area of ​​the protective air cover. Adjust the radial position, pitch angle and extension length of the drive telescopic component 27 so that the blowing directions of each air blowing joint 28 surround and form the initial conical protective air cover. S3. Simultaneous processing of cutting and flue gas: The laser cutting head 15 is started to perform the cutting operation. At the same time, the drive component is started to drive the rotating seat ring 22 to rotate. Each air blowing joint 28 continuously blows air as the rotating seat ring 22 rotates, forming a dynamically rotating conical protective air hood, which completely covers the flue gas generated by cutting inside the protective air hood. Simultaneously, each air suction joint 29 is started to continuously suck up and collect the flue gas inside the protective air hood. S4. Adaptive adjustment of the gas hood: During the cutting process, the gas concentration at the cutting position is detected in real time, and the coverage area of ​​the protective gas hood is adjusted in real time according to the gas concentration; when the gas concentration increases, the coverage area of ​​the protective gas hood is expanded; when the gas concentration decreases, the coverage area of ​​the protective gas hood is reduced. S5. Finishing the operation: After the cutting operation is completed, turn off the laser cutting head 15, and after a delay, turn off the air blowing connector 28, the air suction connector 29 and the driver 23. Stop the machine after all the flue gas has been collected.

[0035] In summary, the present invention also has the following combined effects: This device uses the frame 11 as the main support. The laser generator 14 and the laser cutting head 15 are driven by the three-dimensional moving module on the frame to complete the automated three-dimensional cutting operation of the workpiece to be cut. The workpiece is clamped and positioned by the adjustable workpiece support frame 13 matched with the adjusting crossbar 12 on the frame.

[0036] The cutting operation is synchronized with the start of the flue gas treatment process: The adjustment seat ring 21 coaxially sleeved on the outer periphery of the laser cutting head 15 provides the mounting base for the rotating structure. The driver 23 on the adjustment seat ring 21 drives the rotating seat ring 22 to rotate stably around the axis of the laser cutting head 15 via the rotating bearing 26 through the meshing of the drive gear and the gear ring on the top surface of the rotating seat ring 22. The drive slide rail 24, drive shaft 25 and drive telescopic component 27 at the bottom of the rotating seat ring 22 can respectively adjust the radial position, pitch angle and axial extension of the air blowing connector 28 and the air suction connector 29, realizing multi-dimensional position adjustment of the air passage connectors.

[0037] During operation, multiple sets of air-blowing connectors 28, which rotate synchronously with the rotating seat ring 22, continuously blow air, forming a dynamic conical protective air hood that completely encloses the fumes generated by laser cutting inside the air hood, preventing the fumes from spreading irregularly. At the same time, the air-suction connectors 29 located inside the air-blowing connectors 28 simultaneously and centrally suck the fumes inside the air hood. After being processed by the gas-solid separation unit, the sucked fumes are returned to the circulating fan 212 and then transported to the air-blowing connectors 28 through the air-blowing pipe 210, forming a closed-loop circulating air path of blowing and suction.

[0038] Throughout the cutting process, the flue gas concentration detection unit collects flue gas concentration data at the cutting location in real time and transmits it to the control unit. The control unit adjusts the coverage area of ​​the protective gas hood and the blowing and suction power according to the changes in flue gas concentration, so as to realize the adaptive dynamic adjustment of flue gas treatment.

[0039] Highly efficient flue gas treatment, preventing the spread of pollution: The dynamic cone-shaped protective air hood formed by rotating air blowing can fully cover the cutting flue gas. Combined with the synchronous and concentrated suction of the inner air intake 29, it can realize the simultaneous operation of cutting and flue gas treatment, fundamentally avoiding the irregular spread of flue gas and greatly improving the efficiency of flue gas collection and treatment.

[0040] Flexible adjustment and strong adaptability to working conditions: By adjusting the axial adjustment of the seat ring 21, the radial adjustment of the drive slide rail 24, the pitch angle adjustment of the drive shaft 25, and the length adjustment of the drive telescopic component 27, the coverage area of ​​the protective gas cover can be precisely controlled in multiple dimensions, adapting to the flue gas treatment needs of different workpiece materials, thicknesses, and cutting conditions.

[0041] Intelligent adaptive control, balancing effectiveness and energy consumption: Based on real-time detection of flue gas concentration, the control unit adjusts the range of the gas hood and the operating power of the equipment in conjunction with the gas hood. When the flue gas concentration increases, the protection range is expanded and the processing power is increased. When the concentration decreases, the range is reduced and energy consumption is decreased, thus achieving a balanced control between treatment effectiveness and operating energy consumption.

[0042] Energy-saving and environmentally friendly with high resource utilization: The closed-loop circulating gas path design allows the clean gas after gas-solid separation to be recycled and reused for blowing, greatly reducing gas consumption and achieving harmless separation and treatment of flue gas, thus reducing environmental pollution and resource waste.

[0043] High degree of automation and stable and reliable operation: The three-dimensional moving module realizes the fully automated operation of cutting operations. The adjustable workpiece support structure can adapt to workpieces of different specifications. Cutting and flue gas treatment are completed simultaneously and automatically. At the same time, it adopts gear meshing drive, rotary bearing 26 rotation cooperation, and damped rotating shaft positioning with self-locking function. The structure runs stably, the adjustment accuracy is high, and the continuity and stability of the operation are guaranteed.

[0044] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. An automated fiber laser cutting device, characterized in that, include: Device frame (11) and laser cutting head (15); A flue gas treatment component is provided on the outer periphery of the laser cutting head (15); The flue gas treatment assembly includes an adjusting seat ring (21) and a rotating seat ring (22). The adjusting seat ring (21) is coaxially sleeved on the outside of the laser cutting head (15), and the rotating seat ring (22) is rotatably mounted on the outer ring of the adjusting seat ring (21). At least three sets of drive slide rails (24) are installed circumferentially at the bottom of the rotating seat ring (22), and drive telescopic components (27) are rotatably installed at the bottom of the slider of the drive slide rail (24) via the drive shaft (25). The telescopic end of the drive telescopic component (27) is set toward the light output direction of the laser cutting head (15), and each telescopic end of the drive telescopic component (27) is fixedly equipped with an air blowing connector (28) and an air suction connector (29). The air suction connector (29) is located on the side of the corresponding air blowing connector (28) close to the axis of the laser cutting head (15). All the blowing joints (28) blow air while rotating with the rotating seat ring (22), and together they form a cone-shaped protective gas shield to cover the smoke generated by laser cutting inside the protective gas shield; all the suction joints (29) are used to suck the smoke inside the protective gas shield.

2. The fiber optic automated laser cutting device according to claim 1, characterized in that, The outer wall of the laser cutting head (15) is fixed with a mounting base (213). The adjusting seat ring (21) is coaxially mounted on the outer periphery of the laser cutting head (15) through the mounting base (213), and the adjusting seat ring (21) can be adjusted in position along the axial direction of the laser cutting head (15) through the mounting base (213).

3. The fiber optic automated laser cutting device according to claim 2, characterized in that, A rotary bearing (26) for rotatable installation is provided between the adjusting seat ring (21) and the rotating seat ring (22), and a driver (23) for driving the rotating seat ring (22) is installed on the adjusting seat ring (21). The output end of the driver (23) is provided with a drive gear, and the top surface of the rotating seat (22) is provided with a gear ring that meshes with the drive gear. The driver (23) drives the rotating seat (22) to rotate around the adjusting seat (21) through the meshing of the drive gear and the gear ring.

4. The automated fiber laser cutting device according to claim 3, characterized in that, The drive slide rail (24) is an electric linear slide rail. The slider of the drive slide rail (24) can move back and forth along the radial direction of the rotating seat (22) to adjust the radial distance between the drive telescopic member (27) and the axis of the laser cutting head (15). The drive shaft (25) is a damping shaft with self-locking function, which is used to adjust and lock the pitch angle of the drive telescopic member (27) relative to the bottom surface of the rotating seat (22).

5. The automated fiber laser cutting device according to claim 1, characterized in that, The tail of the drive telescopic component (27) is also provided with a circulating fan (212), and each of the air blowing joints (28) is connected to the circulating fan (212) through an air blowing pipe (210); The suction connectors (29) are all connected to the gas-solid separation unit through the suction pipes (211), and the air inlet of the circulating fan (212) is connected to the clean air outlet of the gas-solid separation device to form a circulating air path for blowing and suction.

6. The automated fiber laser cutting device according to claim 5, characterized in that, It also includes a flue gas concentration detection unit and a control unit. The flue gas concentration detection unit is used to detect the flue gas concentration at the laser cutting position in real time. The control unit is electrically connected to the control terminals of the flue gas concentration detection unit, the drive slide rail (24), the drive telescopic component (27), the driver (23), and the circulating fan (212). The control unit can adjust the coverage area of ​​the protective air cover and the blowing and sucking power according to the detection data of the flue gas concentration detection unit.

7. The automated fiber laser cutting device according to claim 6, characterized in that, When the control unit adjusts the coverage area of ​​the protective air shield, it performs the following operations: When the flue gas concentration is detected to increase, the control unit controls the slider of the drive slide rail (24) to move away from the axis of the laser cutting head (15), while controlling the extension of the drive telescopic component (27) and adjusting the outward tilt angle of the drive telescopic component (27) through the drive shaft (25) to expand the coverage area of ​​the protective gas shield. When the smoke concentration is detected to be reduced, the control unit controls the slider of the drive slide rail (24) to move closer to the axis of the laser cutting head (15), while controlling the drive telescopic component (27) to shorten and adjusting the outward tilt angle of the drive telescopic component (27) through the drive shaft (25) to reduce the coverage area of ​​the protective gas shield.

8. The automated fiber laser cutting device according to claim 1, characterized in that, The device frame (11) is provided with an adjustment crossbar (12), and multiple adjustable workpiece support frames (13) are installed on the adjustment crossbar (12). The workpiece support frames (13) are used to place the workpiece to be cut by the laser generator (14).

9. The automated fiber laser cutting device according to claim 8, characterized in that, The device frame (11) is equipped with a three-dimensional moving module and a laser generator (14). The laser generator (14) and the laser cutting head (15) are mounted on the device frame (11) via the three-dimensional moving module.

10. An automated laser cutting method for optical fibers, based on the automated laser cutting apparatus for optical fibers according to any one of claims 1-9, characterized in that, Includes the following steps: S1. Workpiece clamping: Fix the workpiece to be cut on the processing station of the device frame (11), and adjust the laser cutting head (15) to the cutting start position through the three-dimensional moving module. S2. Parameter preset: Based on the material and thickness of the workpiece to be cut, preset the laser cutting parameters, and at the same time preset the initial coverage range of the protective air cover. Adjust the radial position, pitch angle and extension length of the drive telescopic component (27) so that the blowing directions of each air blowing joint (28) surround and form the initial conical protective air cover. S3. Simultaneous processing of cutting and flue gas: The laser cutting head (15) is started to perform the cutting operation. At the same time, the drive assembly is started to drive the rotating seat ring (22) to rotate. Each air blowing joint (28) continuously blows air while rotating with the rotating seat ring (22), forming a dynamically rotating conical protective air hood, which completely covers the flue gas generated by cutting inside the protective air hood. Simultaneously, each air suction joint (29) is started to continuously suck up and collect the flue gas inside the protective air hood. S4. Adaptive adjustment of the gas hood: During the cutting process, the gas concentration at the cutting position is detected in real time, and the coverage area of ​​the protective gas hood is adjusted in real time according to the gas concentration; when the gas concentration increases, the coverage area of ​​the protective gas hood is expanded; when the gas concentration decreases, the coverage area of ​​the protective gas hood is reduced. S5. Finishing the operation: After the cutting operation is completed, turn off the laser cutting head (15), and turn off the air blowing connector (28) and air suction connector (29) after a delay. Stop the machine after all the flue gas has been collected.

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