An adjustable-angle laser cutting device

Abstract

This invention relates to the field of laser cutting technology, specifically an adjustable-angle laser cutting device. The device includes a mounting frame on which a cutting head is fixedly mounted. A self-rotating air-blowing mechanism is also mounted on the mounting frame, and a waste gas treatment mechanism is provided on the processing table. This invention utilizes the rotating air-blowing mechanism to blow away impurities and slag adhering to the outer wall of the cutting head before cutting, preventing slag from affecting the detection accuracy of the capacitive sensor on the cutting head. This ensures cutting quality while eliminating the risk of collisions. During cutting, the self-rotating air-blowing mechanism can rotate and blow air onto the cutting point, preventing slag from dripping onto the cutting surface and improving the surface quality of the cut. The waste gas treatment mechanism prevents waste gas and small particles generated during cutting from spreading into the air and harming the health of workers. The multi-axis adjustment mechanism can adjust the angle of the cutting head relative to the workpiece, improving the practicality of the device.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology, specifically relating to an adjustable-angle laser cutting device. Background Technology

[0002] Laser cutting is a thermal cutting process that uses a high-energy-density laser beam to irradiate a workpiece, causing the irradiated area to rapidly melt, vaporize, or reach its ignition point. Simultaneously, a high-speed airflow blows away the molten material, achieving the desired cutting effect. Laser cutting devices utilize rare-earth-doped optical fibers as the gain medium to generate the laser beam. The cutting head focuses the laser beam into a tiny, high-energy-density spot for cutting. However, most existing laser cutting devices have their cutting heads arranged perpendicular to the processing surface, making it impossible to adjust the cutting angle according to the actual processing, thus affecting the device's practicality. Furthermore, the high-temperature environment during laser cutting causes tiny molten slag particles to mix with the cutting exhaust gas and diffuse into the surrounding environment, posing a health hazard to workers. Additionally, to ensure the distance between the cutting head and the workpiece, a capacitive height sensor needs to be integrated into the cutting head. However, molten slag or impurities adhering to the cutting head during cutting can interfere with the capacitive field generated by the sensor, affecting the cutting effect and increasing the risk of collision. Therefore, designing an adjustable-angle laser cutting device is essential. Summary of the Invention

[0003] The purpose of this invention is to provide a simple and reasonably designed adjustable-angle laser cutting device to solve the above-mentioned problems.

[0004] The present invention achieves the above objectives through the following technical solutions:

[0005] An adjustable-angle laser cutting device includes a mounting frame, on which a cutting head is fixedly mounted. The mounting frame is equipped with a self-rotating air blowing mechanism. The mounting frame is mounted on a multi-axis adjustment mechanism, which is fixed to the top of a processing table. A lower support is provided at the bottom of the processing table, and a waste gas treatment mechanism is provided on the processing table.

[0006] The self-rotating air blowing mechanism includes a fixed ring fixed on the mounting bracket, a rotating ring rotatably connected to the bottom of the fixed ring, a plurality of air outlet nozzles evenly arranged on the side wall of the rotating ring, the cavities in the rotating ring and the fixed ring being interconnected with the air outlet nozzles, and connecting pipes evenly arranged at the bottom of the rotating ring, the connecting pipes being connected to the flipping air outlet mechanism.

[0007] As a further optimization of the present invention, the flipping air outlet mechanism includes an outer shell fixed on the connecting pipe, an air outlet shell rotatably connected in the outer shell, an air outlet head provided at one end of the air outlet shell, and a communication port provided on the air outlet shell, a sealing gasket provided at the connection between the side wall of the air outlet shell and the inner wall of the outer shell, the air outlet shell being fixedly installed on the outer sealing frame, and the outer sealing frame being slidably connected to the outer shell.

[0008] As a further optimization of the present invention, a connecting platform is provided on the air outlet shell, and a support column is provided on the connecting platform. One end of the support column is rotatably connected to the outer sleeve, and the outer sleeve is fixed to the outer shell.

[0009] As a further optimization of the present invention, the connecting platform is fixedly connected to one end of the torsion spring, and the torsion spring is sleeved on the support column, while the other end of the torsion spring is fixed on the outer sleeve.

[0010] As a further optimization of the present invention, the top of the fixing ring is provided with a docking gas pipe, which is connected to the gas pipeline and is interconnected with the nitrogen pipe on the cutting head.

[0011] As a further optimization of the present invention, the exhaust gas treatment mechanism includes a receiving groove opened on the top of the processing table, and suction slots are symmetrically opened on the side wall of the receiving groove. A connecting pipe is provided at the bottom of the processing table, and the connecting pipe is connected to the suction slots.

[0012] As a further optimization of the present invention, one end of the connecting pipe is connected to the support pipe, the support pipe is connected to the filter pipe, the filter pipe is filled with activated carbon, and the filter pipe is connected to the exhaust pipe. An exhaust motor is fixedly installed in the exhaust pipe, the output end of the exhaust motor is fixedly connected to the exhaust fan blade, and an isolation net is provided at the air outlet of the exhaust pipe.

[0013] As a further optimization of the present invention, an intercepting plate is provided at the connection between the support pipe and the connecting pipe. A fan-shaped mesh plate is installed on the intercepting plate. A drive shaft is rotatably connected to the intercepting plate. A scraper is provided at one end of the drive shaft and is attached to the intercepting plate. A turbine blade is provided at the other end of the drive shaft. A collection shell is provided at the bottom of the connecting pipe. The collection shell is connected to the connecting pipe and is located below the intercepting plate.

[0014] As a further optimization of the present invention, the multi-axis adjustment mechanism includes a rotary table with a sliding connection mounting frame, a lifting screw rotatably connected in the rotary table, the lifting screw being connected to the output end of a first motor, the first motor being fixed on the rotary table, the lifting screw being connected to the mounting frame, the rotary table being rotatably connected to a sliding frame, a rotary motor being fixedly mounted on the sliding frame, and the output end of the rotary motor being fixedly connected to the rotary table.

[0015] As a further optimization of the present invention, the sliding frame is slidably connected to the first support, the first support is fixedly connected to the second motor, the output end of the second motor is fixedly connected to the first lead screw, the first lead screw is rotatably connected to the first support, and the sliding frame is connected to the first lead screw. The two ends of the first support are slidably connected to the second support, the second support is symmetrically fixed on the processing table, one of the second supports is provided with a third motor, the output end of the third motor is fixedly connected to the second lead screw, the second lead screw is rotatably connected to the second support, the first support is connected to the second lead screw, and the top of the processing table is provided with a cutting platform.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. Before cutting, high-pressure nitrogen enters the docking gas pipe through the gas pipeline. Then, a high-pressure environment is generated in the rotating ring and the fixed ring. Part of the gas flow passes through the gas outlet nozzle and is ejected. The circumferentially distributed gas outlet nozzles generate a tangential force that makes the rotating ring rotate. Part of the gas flow passes through the docking pipe and enters the gas flow space isolated by the outer shell, the gas outlet shell and the outer sealing frame. High-pressure nitrogen enters the gas outlet shell from the connecting port and is then ejected from the gas outlet nozzle. At the same time, the high pressure in the gas flow space pushes the gas outlet shell to rotate, causing the torsion spring to deform and rotate downward around the axis of the support column. With the rotation of the rotating ring, impurities and slag attached to the outer wall of the cutting head are blown away, preventing slag from affecting the detection accuracy of the capacitive sensor on the cutting head, ensuring the cutting effect while eliminating the risk of collision.

[0018] 2. In this invention, high-pressure nitrogen is continuously input during laser cutting. The rotating ring, together with the bottom gas outlet shell and gas outlet head, rotates and blows the cutting point to prevent the molten slag produced during cutting from dripping onto the cutting surface, thereby improving the surface quality of the cut.

[0019] 3. During the laser cutting process of this invention, when the exhaust motor drives the exhaust fan blades to rotate, it can draw out the air in the exhaust pipe, creating a negative pressure space above the receiving groove. External air and the exhaust gas generated during cutting will carry molten slag and debris through the suction slot and continuously replenish the connecting pipe. The gas will pass through the fan-shaped mesh plate and enter the support pipe. After being purified by the filter pipe, it will be discharged from the exhaust pipe outlet. Molten slag and debris will be intercepted on the fan-shaped mesh plate. At the same time, the continuously generated airflow will act on the turbine blades to drive the drive shaft and scraper to rotate. The molten slag and debris attached to the fan-shaped mesh plate will be scraped off the fan-shaped mesh plate by the scraper and fall into the collection shell at the bottom of the connecting pipe under the action of gravity. This ensures the ventilation effect of the fan-shaped mesh plate and prevents the exhaust gas and small particles generated during the cutting process from spreading into the air and harming the health of the workers.

[0020] 4. The present invention utilizes a multi-axis adjustment mechanism to adjust the spatial position of the mounting frame. At the same time, during the processing, the rotary motor can drive the rotary table to rotate on the sliding frame, thereby adjusting the angle of the cutting head on the mounting frame relative to the workpiece being cut. This can meet complex actual processing needs and improve the practicality of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram showing the location of the suction inlet of the present invention;

[0023] Figure 3 This is a schematic diagram showing the position of the turbine blades in this invention;

[0024] Figure 4 This is a schematic diagram showing the position of the scraper in this invention;

[0025] Figure 5 This is a three-dimensional diagram of a partial structure of the present invention;

[0026] Figure 6 This is a schematic diagram showing the position of the flip-out air outlet mechanism in this invention;

[0027] Figure 7 This is a schematic diagram showing the connection between the air outlet shell and the outer shell of the present invention;

[0028] Figure 8 This is a partial exploded view of the structure of the present invention;

[0029] Figure 9 This is a schematic diagram of the connection between the air outlet shell and the outer shell of the present invention.

[0030] In the diagram: 1. Mounting frame; 2. Cutting head; 3. Self-rotating air blowing mechanism; 4. Multi-axis adjustment mechanism; 5. Processing table; 6. Lower support; 7. Exhaust gas treatment mechanism; 8. Cutting platform; 31. Fixed ring; 32. Rotating ring; 33. Air outlet nozzle; 34. Connecting pipe; 35. Tilting air outlet mechanism; 36. Connecting air pipe; 37. Air pipeline; 41. Rotary table; 42. Lifting screw; 43. First motor; 44. Sliding frame; 45. Rotary motor; 46. First bracket; 47. Second motor; 48. First screw; 49. Second... 50. Bracket; 51. Third motor; 52. Second lead screw; 73. Receiving groove; 74. Suction inlet; 75. Connecting pipe; 76. Support pipe; 77. Filter pipe; 78. Exhaust pipe; 79. Exhaust motor; 80. Exhaust fan blade; 81. Interceptor plate; 82. Fan-shaped mesh plate; 83. Drive shaft; 84. Scraper; 85. Turbine blade; 356. Outer shell; 357. Exhaust shell; 358. Exhaust head; 359. Connecting port; 350. Connecting platform; 351. Support column; 352. Outer sleeve; 353. Torsion spring; 354. Outer enclosure. Detailed Implementation

[0031] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0032] Example: Please refer to Figure 1-9 An adjustable-angle laser cutting device includes a mounting frame 1, on which a cutting head 2 for laser cutting is fixedly mounted. The cutting head 2 integrates a capacitive sensor for detecting workpiece distance. A self-rotating air blowing mechanism 3 is installed on the mounting frame 1. When the cutting device is started, the self-rotating air blowing mechanism 3 blows out high-pressure nitrogen gas, which removes slag or impurities adhering to the outer wall of the cutting head 2, ensuring the laser cutting effect. Simultaneously, during the cutting process, the cutting point is rotated and sprayed to prevent slag from dripping onto the cutting surface, improving the surface quality of the cut. The mounting frame 1 is set in a multi-axis adjustable... On the section mechanism 4, the multi-axis adjustment mechanism 4 is fixed on the top of the processing table 5. The spatial position of the cutting head 2 and the angle of the cutting head 2 relative to the workpiece can be adjusted by the multi-axis adjustment mechanism 4. The bottom of the processing table 5 is provided with a lower support 6 for supporting the device, and the processing table 5 is provided with an exhaust gas treatment mechanism 7. The exhaust gas treatment mechanism 7 is used to absorb small particles and exhaust gas generated during the cutting process to prevent pollutants from spreading into the surrounding air. The top of the processing table 5 is provided with a cutting platform 8 for supporting the workpiece. The cutting platform 8 is composed of multiple staggered vertical plates to prevent heat from accumulating on the cutting platform 8 during laser cutting.

[0033] Please see Figure 1 and Figure 5-9 The self-rotating air blowing mechanism 3 includes a fixed ring 31 fixed on the mounting bracket 1. A rotating ring 32 is rotatably connected to the bottom of the fixed ring 31. Air outlet nozzles 33 are evenly arranged on the side wall of the rotating ring 32. Multiple air outlet nozzles 33 are provided and are evenly distributed circumferentially on the side wall of the rotating ring 32. The cavities in the rotating ring 32 and the fixed ring 31 are interconnected with the air outlet nozzles 33. Connecting pipes 34 are evenly arranged at the bottom of the rotating ring 32 and are connected to the flipping air outlet mechanism. 35. The flip-out venting mechanism 35 includes an outer shell 351 fixed to the connecting pipe 34. An vent shell 352 is rotatably connected to the outer shell 351. One end of the vent shell 352 is provided with an vent head 353, and a connecting port 354 is provided on the vent shell 352. A sealing gasket is provided at the connection between the side wall of the vent shell 352 and the inner wall of the outer shell 351. The vent shell 352 is fixedly installed on the outer sealing frame 359, and the outer sealing frame 359 is slidably connected to the outer shell 351, as shown in the attached figure. Figure 9The outer enclosure 359, in conjunction with the outlet shell 352, isolates a closed gas flow space within the outer shell 351. Airflow entering the connecting pipe 34 from the cavities of the rotating ring 32 and the fixed ring 31 first enters this closed gas flow space, passes through the connecting port 354 into the outlet shell 352, and finally exits from the outlet head 353. The outlet shell 352 is equipped with a connecting platform 355, located outside the outer shell 351. A support column 356 is mounted on the connecting platform 355, with one end rotatably connected to the outer sleeve 357, which is fixed to the outer shell 351. The connecting platform 355 is fixedly connected to the outer shell 351. One end of the torsion spring 358 is attached to the support column 356, and the other end of the torsion spring 358 is fixed to the outer sleeve 357. When the torsion spring 358 is in a non-stressed state, the jet direction of the gas outlet 353 on the gas outlet shell 352 is perpendicular to the side wall of the cutting head 2. The top of the fixing ring 31 is provided with a docking gas pipe 36, which is connected to the gas passage pipe 37, and the gas passage pipe 37 is interconnected with the nitrogen pipe on the cutting head 2. When the device is started, the gas passage pipe 37 is connected to an external gas source, which can pass high-pressure nitrogen into the docking gas pipe 36 and the nitrogen pipe on the cutting head 2. The airflow entering the nitrogen pipe and the high-energy gas emitted by the cutting head 2 are combined. The laser output is coaxial, and the airflow entering the docking pipe 36 will generate a high-pressure environment in the rotating ring 32 and the fixed ring 31. Part of the airflow will pass through the exhaust nozzle 33 and be ejected. The circumferentially distributed exhaust nozzle 33 will generate a tangential force that makes the rotating ring 32 rotate. Part of the airflow will pass through the docking pipe 34 and enter the gas flow space isolated by the outer shell 351, the exhaust shell 352 and the outer enclosure frame 359. High-pressure nitrogen enters the exhaust shell 352 from the connecting port 354 and is ejected from the exhaust nozzle 353. At the same time, the high pressure in the gas flow space will push the exhaust shell 352 to rotate, causing the torsion spring 358 to deform. The exhaust shell 352 rotates around the axis of the support column 356. The gas outlet shell 352 swings downward until it is limited by the outer shell 351 to reach its downward swing limit. Then, under the continuous input of high-pressure nitrogen, the flip position of the gas outlet shell 352 is locked by the gas pressure. With the rotation of the rotating ring 32, impurities and slag attached to the outer wall of the cutting head 2 are blown away, preventing slag from affecting the detection accuracy of the capacitive sensor on the cutting head 2. This ensures the cutting effect while eliminating the risk of collision. During the laser cutting process, high-pressure nitrogen is continuously input. The rotating ring 32, together with the bottom gas outlet shell 352 and the gas outlet head 353, rotates and blows the cutting point to prevent the slag produced during cutting from dripping onto the cutting surface, thus improving the surface quality of the cut.

[0034] Please see Figure 1-4The exhaust gas treatment mechanism 7 includes a receiving groove 71 located on the top of the processing table 5. The receiving groove 71 is a square recess, and the slag and debris generated during cutting will fall from the cutting platform 8 into the receiving groove 71. Suction inlets 72 are symmetrically arranged on the side wall of the receiving groove 71. A connecting pipe 73 is provided at the bottom of the processing table 5, and the connecting pipe 73 is connected to the suction inlets 72. The connecting pipe 73 is connected to a support pipe 74, and the support pipe 74 is connected to a filter pipe 75. The filter pipe 75 is filled with activated carbon, which can adsorb harmful components mixed in the exhaust gas. The filter pipe 75 is connected to an exhaust pipe 76. A blower motor 77 is fixedly installed in the duct 76. The output end of the blower motor 77 is fixedly connected to the blower blade 78. When the blower motor 77 drives the blower blade 78 to rotate, it can draw out the air in the blower duct 76 and form a negative pressure space above the receiving groove 71. External air and exhaust gas generated during cutting will continuously replenish the connecting pipe 73 through the suction port 72. At the same time, it can also carry the slag and debris in the receiving groove 71 into the connecting pipe 73. An isolation net is installed at the air outlet of the blower duct 76, and an interception plate 79 is installed at the connection between the support pipe 74 and the connecting pipe 73. A fan-shaped mesh plate 80 is installed on the top, allowing airflow to pass through it and enter the support pipe 74. A drive shaft 81 is rotatably connected to the interceptor plate 79. One end of the drive shaft 81 is equipped with a scraper 82, which fits against the interceptor plate 79. The other end of the drive shaft 81 is equipped with a turbine blade 83. A collection shell is installed at the bottom of the connecting pipe 73, communicating with the connecting pipe 73 and located below the interceptor plate 79. During laser cutting, when the exhaust motor 77 drives the exhaust fan blades 78 to rotate, it can extract air from the exhaust pipe 76, creating a negative pressure above the receiving groove 71. In the compressed space, external air and exhaust gas generated from cutting will carry molten slag and debris through the suction slot 72 and continuously replenish the connecting pipe 73. The gas will pass through the fan-shaped mesh plate 80 and enter the support pipe 74. After being purified by the filter pipe 75, it will be discharged from the exhaust port 76. Molten slag and debris will be intercepted on the fan-shaped mesh plate 80. At the same time, the continuously generated airflow will act on the turbine blades 83 to drive the drive shaft 81 and scraper 82 to rotate. The molten slag and debris attached to the fan-shaped mesh plate 80 will be scraped off the fan-shaped mesh plate 80 by the scraper 82 and fall into the collection shell at the bottom of the connecting pipe 73 under the action of gravity.

[0035] Please see Figure 1 and Figure 5-6The multi-axis adjustment mechanism 4 includes a rotating table 41 of a sliding mounting frame 1. A lifting screw 42 is rotatably connected to the rotating table 41 via bearings. The lifting screw 42 is fixedly connected to the output end of a first motor 43 via a coupling. The first motor 43 is fixed on the rotating table 41. The mounting frame 1 is connected to the lifting screw 42 via an internally embedded ball nut. The rotating table 41 is rotatably connected to a sliding frame 44. A rotary motor 45 is fixedly mounted on the sliding frame 44. The output end of the rotary motor 45 is fixedly connected to the rotating table 41. The rotary motor 45 can drive the rotating table 41 to rotate on the sliding frame 44, thereby adjusting the angle of the cutting head 2 on the mounting frame 1 relative to the workpiece. The sliding frame 44 is slidably connected to the guide rail of a first support 46. A second motor 47 is fixedly connected to the first support 46. The output end of the second motor 47 is connected to a first screw 48 via a coupling. The first screw 48 is rotatably connected to the first support 46 via bearings, and the sliding frame 44 is connected to the first screw 48 via an internally embedded ball nut. The two ends of a bracket 46 are slidably connected to a second bracket 49, which is symmetrically fixed on the processing table 5. A third motor 50 is fixedly installed on one of the second brackets 49. The output end of the third motor 50 is connected to a second lead screw 51 through a coupling. The second lead screw 51 is rotatably connected to the second bracket 49 through a bearing. The first bracket 46 is connected to the second lead screw 51 through an internally embedded ball nut. The third motor 50 drives the second lead screw 51 to rotate, which can be used to move the first bracket 46 along the axis of the second lead screw 51 by cooperating with the second lead screw 51. The second motor 47 drives the first lead screw 48 to rotate, which can be used to move the sliding frame 44 along the axis of the first lead screw 48 by cooperating with the first lead screw 48, thereby adjusting the horizontal position of the cutting head 2. The first motor 43 drives the lifting lead screw 42 to rotate, which can be used to make the mounting frame 1 slide up and down along the axis of the lifting lead screw 42 by cooperating with the lifting lead screw 42, thereby adjusting the height distance of the cutting head 2 relative to the workpiece.

[0036] It should be noted that, in use of this adjustable-angle laser cutting device, the workpiece to be cut is first fixed on the cutting platform 8. Then, the horizontal position of the sliding frame 44 is adjusted by the third motor 50 and the second motor 47, moving the cutting head 2 to the initial cutting point. As needed, the rotary motor 45 drives the rotary table 41 to rotate, adjusting the angle of the cutting head 2 on the mounting frame 1 relative to the workpiece. During cutting, the first motor 43 drives the lifting screw 42 to rotate, moving the entire mounting frame 1 downwards to move the cutting head 2 to the cutting height. Subsequently, the external gas source connected to the gas pipeline 37 introduces high-pressure nitrogen into the docking gas pipe 36 and the nitrogen pipe on the cutting head 2. The airflow entering the nitrogen pipe is coaxially output with the high-energy laser emitted by the cutting head 2, while the airflow entering the docking gas pipe 36 creates a high-pressure environment in the rotating ring 32 and the fixed ring 31. Part of the airflow is ejected from the exhaust nozzle 33, causing the rotating ring 32 to rotate. Part of the airflow enters the gas flow space isolated by the outer shell 351, the exhaust shell 352, and the outer enclosure 359, and is ejected from the exhaust head 353. At the same time, the high pressure in the gas flow space pushes the exhaust shell 352 to rotate, causing the torsion spring 358 to deform. Simultaneously, the exhaust shell 352 rotates downward around the axis of the support column 356 until the exhaust shell 352 is limited by the outer shell 351 and reaches the limit position of rotation. Combined with the rotation of the rotating ring 32, impurities and slag attached to the outer wall of the cutting head 2 are blown away. Afterwards, the multi-axis adjustment mechanism 4 continuously adjusts the position of the cutting head 2 for continuous cutting. During the laser cutting process, high-pressure nitrogen is continuously input. The rotating ring 32, together with the exhaust shell 352 and the exhaust head 353 at the bottom, rotates and blows the cutting point to prevent the slag generated during cutting from dripping onto the cutting surface.

[0037] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An adjustable-angle laser cutting device, comprising a mounting bracket (1), characterized in that: The mounting frame (1) is fixedly mounted with a cutting head (2), and the mounting frame (1) is provided with a self-rotating air blowing mechanism (3). The mounting frame (1) is set on a multi-axis adjustment mechanism (4), which is fixed on the top of the processing table (5). The bottom of the processing table (5) is provided with a lower support (6), and the processing table (5) is provided with a waste gas treatment mechanism (7). The self-rotating air blowing mechanism (3) includes a fixed ring (31) fixed on the mounting bracket (1), a rotating ring (32) rotatably connected to the bottom of the fixed ring (31), and a plurality of air outlet nozzles (33) evenly arranged on the side wall of the rotating ring (32). The cavities in the rotating ring (32) and the fixed ring (31) are interconnected with the air outlet nozzles (33). A connecting pipe (34) is evenly arranged at the bottom of the rotating ring (32). The connecting pipe (34) is connected to the flipping air outlet mechanism (35). The flipping air outlet mechanism (35) includes an outer shell (351) fixed on the connecting pipe (34). An air outlet shell (352) is rotatably connected in the outer shell (351). An air outlet head (353) is provided at one end of the air outlet shell (352), and an air outlet head (353) is provided on the air outlet shell (352). There is a connecting port (354). A sealing gasket is provided at the connection between the side wall of the vent shell (352) and the inner wall of the outer shell (351). The vent shell (352) is fixedly installed on the outer sealing frame (359), and the outer sealing frame (359) is slidably connected to the outer shell (351). A connecting platform (355) is provided on the vent shell (352). A support column (356) is provided on the connecting platform (355). One end of the support column (356) is rotatably connected to the outer sleeve (357), and the outer sleeve (357) is fixed on the outer shell (351). One end of the torsion spring (358) is fixedly connected to the connecting platform (355), and the torsion spring (358) is sleeved on the support column (356). The other end of the torsion spring (358) is fixed on the outer sleeve (357). The exhaust gas treatment mechanism (7) includes a receiving groove (71) opened on the top of the processing table (5). A suction slot (72) is symmetrically opened on the side wall of the receiving groove (71). A connecting pipe (73) is provided at the bottom of the processing table (5). The connecting pipe (73) is connected to the suction slot (72). One end of the connecting pipe (73) is connected to the support pipe (74). The support pipe (74) is connected to the filter pipe (75). An interceptor plate (79) is provided at the connection between the support pipe (74) and the connecting pipe (73). A fan-shaped mesh plate (80) is installed on the interceptor plate (79). A drive shaft (81) is rotatably connected to the interceptor plate (79). A scraper (82) is provided at one end of the drive shaft (81). The scraper (82) is attached to the interceptor plate (79).

2. The adjustable-angle laser cutting device according to claim 1, characterized in that: The top of the fixing ring (31) is provided with a docking gas pipe (36), which is connected to the gas pipeline (37), and the gas pipeline (37) is connected to the nitrogen pipe on the cutting head (2).

3. The adjustable-angle laser cutting device according to claim 1, characterized in that: The filter tube (75) is filled with activated carbon and is connected to the exhaust pipe (76). An exhaust motor (77) is fixedly installed in the exhaust pipe (76). The output end of the exhaust motor (77) is fixedly connected to the exhaust fan blade (78). An isolation net is provided at the air outlet of the exhaust pipe (76).

4. The adjustable-angle laser cutting device according to claim 3, characterized in that: The other end of the drive shaft (81) is provided with a turbine blade (83), and the bottom of the connecting pipe (73) is provided with a collection shell. The collection shell is connected to the connecting pipe (73) and is located below the interceptor plate (79).

5. The adjustable-angle laser cutting device according to claim 1, characterized in that: The multi-axis adjustment mechanism (4) includes a rotating table (41) of a sliding connection mounting frame (1), a lifting screw (42) is rotatably connected in the rotating table (41), the lifting screw (42) is connected to the output end of a first motor (43), the first motor (43) is fixed on the rotating table (41), the lifting screw (42) is connected to the mounting frame (1), the rotating table (41) is rotatably connected to a sliding frame (44), a rotary motor (45) is fixedly installed on the sliding frame (44), and the output end of the rotary motor (45) is fixedly connected to the rotating table (41).

6. The adjustable-angle laser cutting device according to claim 5, characterized in that: The sliding frame (44) is slidably connected to the first bracket (46). The first bracket (46) is fixedly connected to the second motor (47). The output end of the second motor (47) is fixedly connected to the first lead screw (48). The first lead screw (48) is rotatably connected to the first bracket (46), and the sliding frame (44) is connected to the first lead screw (48). The two ends of the first bracket (46) are slidably connected to the second bracket (49). The second bracket (49) is symmetrically fixed on the processing table (5). One of the second brackets (49) is equipped with a third motor (50). The output end of the third motor (50) is fixedly connected to the second lead screw (51). The second lead screw (51) is rotatably connected to the second bracket (49). The first bracket (46) is connected to the second lead screw (51). The top of the processing table (5) is equipped with a cutting platform (8).

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