A multi-angle adjustable laser cutting machine

Abstract

This invention relates to the field of laser cutting machine technology, specifically to a multi-angle adjustable laser cutting machine. The technical solution includes a machine tool frame with longitudinal guide beams positioned above both sides of the frame. A fixed crossbeam is fixedly mounted on the top of one end of each longitudinal guide beam, and a laser generator is mounted on the crossbeam. A fixed reflector is mounted on one end of the crossbeam. A transverse guide beam is mounted on the top surface of the longitudinal guide beams, and a deflectable reflector is mounted on one end of the transverse guide beam. An outer frame structure is located on one side of the transverse guide beam, and an adjustable focusing device is installed within the outer frame structure. The adjustable focusing device includes a light guide tube. The beneficial effect of this invention is that activating the adjustable focusing device causes the light guide tube to deflect, adjusting the laser emission angle. Activating the deflectable reflector adjusts the deflection according to the deflection of the adjustable focusing device, thereby achieving real-time adjustment of the laser transmission path based on the adjusted laser cutting angle.

Description

Technical Field

[0001] This invention relates to the field of laser cutting machine technology, and more specifically to a multi-angle adjustable laser cutting machine. Background Art

[0002] A laser cutting machine is a device that uses a laser beam with high energy density to cut materials. It is used in industries such as metal processing. The principle is to emit a laser beam from a laser and focus the laser on the surface of the material, causing the material to be heated, evaporated, melted, or ablated, thereby achieving the cutting effect. Laser cutting machines are commonly used for the precise cutting of materials such as metal, plastic, wood, and stone, and are widely used in industries such as aerospace, automobile manufacturing, advertising production, furniture processing, and metal processing.

[0003] In laser cutting machines, the laser beam is typically guided from the laser to the cutting head by multiple reflectors. However, existing laser cutting machines usually only adjust the tilt angle of the cutting head to control the incident angle between the laser beam and the material surface when adjusting the laser beam angle. The angle of the reflectors used for guiding the optical path in the original optical path system often cannot be adjusted in time. If the angle of the reflectors cannot be adjusted and correctly aligned with the optical components, the laser beam will deviate during transmission. This leads to the problem that even if the tilt angle of the cutting head is adjusted, the laser beam still cannot accurately reach the target position. Furthermore, although the existing cutting head angle adjustment structure can make a certain degree of angle adjustment, its adjustment accuracy is usually limited by the design and mechanical structure. Due to the limited accuracy of the angle adjustment, the incident angle between the laser beam and the material surface may not be accurately controlled, which may affect the cutting quality and precision.

[0004] The focal point of a laser cutting machine is crucial for achieving material cutting. After being focused by a lens, the laser beam concentrates on a specific area. The closer to the focal point, the higher the temperature; conversely, the temperature gradually decreases as the beam moves away from the focal point. When the cutting surface is perfectly perpendicular to the laser beam, the contact point between the laser beam and the material is uniform, and the cutting temperature is the same at every point within the cutting area, maintaining a stable cutting process. However, for laser cutting machines with multi-angle adjustment functions, the laser beam cannot remain perpendicular to the cutting surface when the laser beam angle is adjusted. When the laser beam irradiates a non-perpendicular cutting surface, the temperature on the side where the hole is cut may be higher, causing localized overheating or uneven cooling. This can affect the cutting quality and the neatness of the edges.

[0005] Therefore, it is necessary to invent a laser cutting machine with multi-angle adjustment. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-angle adjustable laser cutting machine, comprising a machine tool frame, longitudinal guide beams arranged on the upper sides of both sides of the machine tool frame, a lifting rod fixedly installed between the longitudinal guide beams and the machine tool frame, a fixed crossbeam fixedly installed at the top of one end of the longitudinal guide beam, a laser generator installed on the fixed crossbeam, a fixed reflecting device installed at one end of the fixed crossbeam, a transverse guide beam mounted on the top surface of the longitudinal guide beam, longitudinal sliding devices installed at both ends of the transverse guide beam, a deflectable reflecting device installed at one end of the transverse guide beam, an outer frame structure arranged on one side of the transverse guide beam, a transverse sliding device installed between the outer frame structure and the transverse guide beam, a fan installed at the top of the outer frame structure, a third motor connected to the top of the fan, a base plate installed at the lower end of the outer frame structure, an airflow sleeve installed at the bottom of the base plate, an adjustable focusing device installed inside the outer frame structure, the adjustable focusing device comprising a light guide tube, the lower end of the light guide tube extending into the airflow sleeve, and an airflow control structure provided between the airflow sleeve and the light guide tube.

[0007] Preferably, the adjustable focusing device includes a receiver, which is located in the center inside the outer frame structure. The top of the receiver is set as an arc surface. A light-passing port is provided on one side of the receiver perpendicular to the horizontal guide beam. A third reflector is fixedly installed inside the receiver. The upper end of the light guide tube is connected to the bottom of the receiver. A focusing lens is installed on the inner wall of the lower end of the light guide tube.

[0008] Preferably, the adjustable focusing device includes a long rod, and a plurality of the long rods are arranged around the light guide tube. A short rod is rotatably installed at one end of the long rod near the light guide tube, and a hydraulic push rod is rotatably installed at the bottom of the short rod. The output end of the hydraulic push rod extends to the bottom of the long rod, and the output end of the hydraulic push rod is rotatably connected to the long rod.

[0009] Preferably, the top surface of the base plate is provided with a groove, and the inner wall of the groove of the base plate is provided with an annular sliding groove. The end of the long rod away from the short rod is rotatably mounted with a rotating end head, and a sliding ball is installed on the rotating end head. The sliding ball is slidably mounted in the annular sliding groove. The end of the short rod away from the long rod is rotatably mounted with a ball joint, and the ball joint is rotatably mounted in a joint ball seat. The joint ball seat is fixedly mounted on the outer wall of the light guide tube.

[0010] Preferably, the airflow control structure includes a spherical shell, which is installed on the inner wall of the lower port of the airflow sleeve. The spherical shell has openings on its upper and lower sides. An inner liner is provided on the outer side of the lower end of the light guide tube. The inner liner has an annular structure. The outer wall of the inner liner is configured as a curved surface that fits the inner wall of the spherical shell. Several connecting plates are fixedly installed between the inner wall of the inner liner and the outer wall of the light guide tube. The inner liner is rotatably installed on the inner wall of the spherical shell.

[0011] Preferably, the deflectable reflector includes a fixed base, which is installed at one end of a transverse guide beam. The fixed base is located on the side of the receiver with a light-transmitting port. A fixed bracket is installed on the side of the fixed base away from the transverse guide beam. An opening is provided in the middle of the fixed bracket. A deflection motor is embedded in one side of the fixed bracket. The output end of the deflection motor is connected to a deflection mirror base. A C-shaped bracket is also installed on the outer side. The side of the C-shaped bracket away from the fixed bracket extends to the side of the deflection mirror base away from the deflection motor. The C-shaped bracket is rotatably connected to the deflection mirror base.

[0012] Preferably, the deflectable reflector includes a second rotating rod, which is rotatably mounted inside the deflector mount. A second reflector is fixedly mounted on the middle of the outer wall of the second rotating rod. The lower end of the second rotating rod passes through the deflector mount, and a second knob is fixedly mounted on the lower end of the second rotating rod.

[0013] Preferably, the fixed reflection device includes a reflector base, which is fixedly installed at one end of a fixed crossbeam. The reflector base and the fixed base are located on the same side of the machine tool frame. A first rotating rod is rotatably installed on the reflector base. A first reflector is fixedly installed in the middle of the outer wall of the first rotating rod. The lower end of the first rotating rod passes through the reflector base, and a first knob is fixedly installed at the lower end of the first rotating rod.

[0014] Preferably, the longitudinal sliding device includes a longitudinal slide block, which is disposed at both ends of the transverse guide beam. A connecting block is installed on the top surface of the longitudinal slide block, and the connecting block is fixedly connected to the transverse guide beam. A first motor is fixedly installed at the four corners of the top surface of the longitudinal slide block. The output end of the first motor passes downward through the longitudinal slide block. A first guide wheel is installed at the lower end of the first motor, and the first guide wheel is disposed on both sides of the longitudinal guide beam.

[0015] Preferably, the transverse sliding device includes a transverse slide block, which is disposed on the upper and lower sides of the transverse guide beam. The transverse slide block is fixedly connected to the outer frame structure. A second motor is fixedly installed on the transverse slide block, and a second guide wheel is fixedly installed at the output end of the second motor. The second guide wheel passes through the transverse slide block and is in close contact with the surface of the transverse guide beam.

[0016] The beneficial effects of this invention are as follows: When the laser generator is activated, a laser beam is emitted. The laser beam is reflected sequentially by a fixed reflector and a deflectable reflector and then enters an adjustable focusing device. It is then directed downwards from the light guide tube toward the surface of the object being cut. By activating the adjustable focusing device, the light guide tube is deflected, adjusting the emission angle of the laser beam. At the same time, the deflectable reflector is activated to adjust the deflection according to the deflection of the adjustable focusing device. This achieves the effect of adjusting the laser transmission path in real time according to the adjusted laser cutting angle, reducing deviations in the laser transmission path, and facilitating precise control of the laser beam incident angle, thereby improving cutting quality and precision.

[0017] On the other hand, when the adjustable focusing device drives the light guide tube to deflect, the airflow control structure will rotate with the deflection of the light guide tube. The airflow control structure widens the air outlet on the deflected side of the light guide tube and narrows the air outlet on the closer side, thereby increasing the ventilation volume on the deflected side of the light guide tube and blowing it towards the high-temperature side of the laser cutting and perforation. This achieves the effect of cooling the high-temperature side of the cutting and perforation during laser oblique cutting, thereby avoiding local overheating and improving the cutting quality and edge neatness. Attached Figure Description

[0018] Figure 1 This is a front view provided for the present invention;

[0019] Figure 2 Exploded view provided for this invention;

[0020] Figure 3 This is a schematic diagram of the installation of the outer frame structure provided by the present invention;

[0021] Figure 4 This is a schematic diagram of the internal structure of the outer frame provided by the present invention;

[0022] Figure 5 A cross-sectional view of the transverse guide beam provided for this invention;

[0023] Figure 6 This is a cross-sectional view of the adjustable focusing device provided by the present invention;

[0024] Figure 7 This is a cross-sectional view of the internal structure of the airflow sleeve provided by the present invention;

[0025] Figure 8 Provided by the present invention Figure 7 Detail image A;

[0026] Figure 9 This is a schematic diagram of the transverse guide beam end structure provided by the present invention;

[0027] Figure 10 This is a schematic diagram of the deflectable reflective device provided by the present invention;

[0028] Figure 11 This is a schematic diagram of the internal structure of the deflection mirror mount provided by the present invention;

[0029] Figure 12 This is another side view of the deflectable reflective device provided by the present invention;

[0030] Figure 13 This is a schematic diagram of the fixed reflection device structure provided by the present invention;

[0031] Figure 14 A schematic diagram of the longitudinal sliding device structure provided by the present invention;

[0032] Figure 15 This is a schematic diagram of the installation of the longitudinal sliding device provided by the present invention;

[0033] Figure 16 This is a schematic diagram of the transverse sliding device provided by the present invention.

[0034] In the diagram: Longitudinal guide beam 11, machine tool frame 12, lifting rod 13, fixed crossbeam 14, transverse guide beam 15, longitudinal slide 161, connecting block 162, first motor 163, first guide wheel 164, reflector mount 171, first reflector 172, first rotating rod 173, first knob 174, laser generator 18, fixed base 191, fixed bracket 192, deflection motor 193, deflection mirror mount 194, C-shaped bracket 195, second reflector 196, second rotating rod 197, second knob 198 20. Outer frame structure 211. Horizontal slide 212. Second motor 212. Second guide wheel 213. Receiver 221. Light port 222. Light guide tube 223. Base plate 224. Airflow sleeve 225. Spherical shell 226. Inner liner 227. Connecting plate 228. Focusing lens 229. Long rod 231. Short rod 232. Hydraulic push rod 233. Rotating end 234. Sliding ball 235. Annular groove 236. Ball joint 237. Joint ball seat 238. Fan 24. Third motor 25. Third reflector 26. Detailed Implementation

[0035] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] Example 1, such as Figure 1 - Figure 6As shown, a multi-angle adjustable laser cutting machine according to a first aspect embodiment of the present invention includes a machine tool frame 12. Longitudinal guide beams 11 are arranged on the upper sides of both sides of the machine tool frame 12. A lifting rod 13 is fixedly installed between the longitudinal guide beams 11 and the machine tool frame 12. A fixed crossbeam 14 is fixedly installed at the top of one end of the longitudinal guide beams 11. A laser generator 18 is installed on the fixed crossbeam 14. A fixed reflector is installed at one end of the fixed crossbeam 14. A transverse guide beam 15 is mounted on the top surface of the longitudinal guide beams 11. Longitudinal sliding devices are installed at both ends of the transverse guide beam 15. A deflectable reflector is installed at one end of the transverse guide beam 15. The light-emitting device has an outer frame structure 20 on one side of the transverse guide beam 15. A transverse sliding device is installed between the outer frame structure 20 and the transverse guide beam 15. A fan 24 is installed on the top of the outer frame structure 20, and a third motor 25 is connected to the top of the fan 24. A base plate 224 is installed at the lower end of the outer frame structure 20, and an airflow sleeve 225 is installed at the bottom of the base plate 224. An adjustable focusing device is installed inside the outer frame structure 20. The adjustable focusing device includes a light guide tube 223, the lower end of which extends into the airflow sleeve 225. An airflow control structure is provided between the airflow sleeve 225 and the light guide tube 223.

[0037] In the above embodiments, it should be noted that the laser generator 18 is a carbon dioxide laser emitter, which is a prior art known to those skilled in the art; both the lifting rod 13 and the third motor 25 are externally connected to a power supply and control system. By starting the lifting rod 13, the longitudinal guide beam 11 is driven to rise or fall, so as to control the vertical movement of the adjustable focusing device to approach or move away from the cutting surface, so that the focal point of the emitted laser beam is close to the object being cut; by starting the longitudinal sliding device, the transverse guide beam 15 is driven to move longitudinally, and then by starting the transverse sliding device, the adjustable focusing device is driven to move laterally, so as to control the longitudinal and transverse movements of the adjustable focusing device;

[0038] The laser generator 18 is activated to emit a laser beam. The laser beam is reflected sequentially by a fixed reflector and a deflectable reflector and then enters an adjustable focusing device. It is then directed downwards from the light guide tube 223 onto the surface of the object being cut. By activating the adjustable focusing device, the light guide tube 223 is deflected to adjust the emission angle of the laser beam. At the same time, the deflectable reflector is activated to adjust the deflection according to the deflection of the adjustable focusing device. This achieves the effect of adjusting the laser transmission path in real time according to the adjusted laser cutting angle, reducing deviations in the laser transmission path, and facilitating precise control of the laser beam incident angle, thereby improving cutting quality and accuracy.

[0039] On the other hand, since the laser beam is focused by the adjustable focusing device, it will be concentrated at a single focal point. When the laser beam is perpendicular to the cutting surface, the distance between the laser beam and the focal point is the same at all points on the cutting surface, and the cutting surface is heated evenly. When the laser beam is deflected to one side, the distance between the contact point of the laser beam closer to the cutting surface and the focal point becomes farther, while the distance between the contact point of the laser beam deviating from the cutting surface and the focal point becomes closer. Therefore, the temperature of the contact point of the laser beam deviating from the cutting surface is higher than that of the contact point of the laser beam closer to the cutting surface, resulting in uneven heating of the cutting surface during cutting.

[0040] Based on the above-mentioned uneven heating of the cutting surface during cutting, when the adjustable focusing device drives the light guide tube 223 to deflect, the airflow control structure will rotate with the deflection of the light guide tube 223. Through the airflow control structure, the air outlet on the deviated side of the light guide tube 223 becomes wider, and the air outlet on the near side becomes narrower, thereby increasing the ventilation volume on the deviated side of the light guide tube 223 and blowing it towards the high-temperature side of the laser cutting hole. This achieves the effect of cooling the high-temperature side of the cutting hole during laser oblique cutting, thereby avoiding local overheating and improving cutting quality and edge neatness.

[0041] Example 2, as Figure 3 - Figure 8As shown, a multi-angle adjustable laser cutting machine includes Embodiment 1. Furthermore, the adjustable focusing device includes a receiver 221, which is located in the center inside the outer frame 20. The top of the receiver 221 is curved. A light-passing port 222 is provided on one side of the receiver 221 perpendicular to the transverse guide beam 15. A third reflecting mirror 26 is fixedly installed inside the receiver 221. The upper end of a light guide tube 223 is connected to the bottom of the receiver 221. A focusing lens 229 is installed on the inner wall of the lower end of the light guide tube 223. The adjustable focusing device includes a long rod 231, with several long rods 231 arranged around the light guide tube 223. A short rod 232 is rotatably installed at one end of the long rod 231 near the light guide tube 223. A hydraulic push rod 233 is rotatably installed at the bottom of the short rod 232. The output end of the hydraulic push rod 233 extends to the bottom of the long rod 231 and is rotatably connected to the long rod 231. A groove is provided on the top surface of the base plate 224. An annular groove 236 is provided around the inner wall of the groove. A rotating end 234 is rotatably mounted on the end of the long rod 231 away from the short rod 232. A sliding ball 235 is mounted on the rotating end 234 and slides within the annular groove 236. A ball joint 237 is rotatably mounted on the end of the short rod 232 away from the long rod 231. The ball joint 237 is rotatably mounted within a joint ball seat 238. The joint ball seat 238 is fixedly mounted around the outer wall of the light guide tube 223, allowing airflow... The control structure includes a spherical shell 226, which is installed on the inner wall of the lower port of the airflow sleeve 225. The spherical shell 226 has openings on its upper and lower sides. An inner liner plate 227 is provided on the outer side of the lower end of the light guide tube 223. The inner liner plate 227 has an annular structure. The outer wall of the inner liner plate 227 is set as a curved surface that fits the inner wall of the spherical shell 226. Several connecting plates 228 are fixedly installed between the inner wall of the inner liner plate 227 and the outer wall of the light guide tube 223. The inner liner plate 227 is rotatably installed on the inner wall of the spherical shell 226.

[0042] In the above embodiment, it should be noted that the laser beam reflected by the deflectable reflector enters the receiver 221 through the light port 222 and enters the light guide tube 223 under the reflection of the third reflector 26. The light beam in the light guide tube 223 is refracted by the focusing lens 229 and emitted from the lower end of the light guide tube 223 and converges on the surface of the object to be cut. At the same time, the third motor 25 is started to drive the fan 24 to blow downward. The airflow enters the airflow sleeve 225 and is blown out from the lower end of the airflow sleeve 225, blowing away the high-temperature vaporized material, so as to achieve the effect of laser cutting the object.

[0043] The spherical shell 226 and the inner liner 227 have good sealing performance. The lower end of the light guide tube 223 is connected to the airflow sleeve 225 through the connecting plate 228, the inner liner 227, and the spherical shell 226. The hydraulic push rod 233 is connected to an external power supply and a control terminal. The angle adjustment process of the adjustable focusing device is as follows: The control terminal will evenly distribute coordinate positions on the surface of the base plate 224. Since the lower end of the light guide tube 223 is fixed, it is only necessary to move the upper part of the light guide tube 223 to the specified coordinate position on the base plate 224 to accurately deflect the excitation of the light guide tube 223. The light emission angle is controlled by activating the hydraulic push rods 233 around the light guide tube 223. The hydraulic push rods 233 push the short rods 232 and long rods 231 around the light guide tube 223 to rotate and extend or retract, thus moving the upper end of the light guide tube 223 to a designated coordinate position on the surface of the base plate 224. While the upper end of the light guide tube 223 moves, the sliding balls 235 around the light guide tube 223 will slide and adjust themselves in the annular groove 236 to effectively improve the deflection accuracy of the light guide tube 223, accurately control the incident angle of the laser beam and the material surface, and greatly improve the cutting quality.

[0044] As the upper end of the light guide tube 223 deflects, the outer wall of the light guide tube 223 tilts and approaches one side of the upper inner wall of the spherical shell 226. Under the action of the light guide tube 223, the opening on the side of the light guide tube 223 and the spherical shell 226 that is closer to the light guide tube 223 becomes smaller, while the opening on the side of the light guide tube 223 and the spherical shell 226 that is farther away from the light guide tube 223 becomes larger. This increases the ventilation volume on the side of the light guide tube 223 that is away from the light guide tube and blows it toward the high-temperature side of the laser cutting and perforation for cooling.

[0045] Example 3, as Figure 9 - Figure 12 As shown, a multi-angle adjustable laser cutting machine, including Embodiment 2, includes a deflectable reflective device comprising a fixed base 191, which is mounted at one end of a transverse guide beam 15. The fixed base 191 is positioned on the side of the receiver 221 where a light-transmitting port 222 is located. A fixed bracket 192 is mounted on the side of the fixed base 191 away from the transverse guide beam 15. An opening is provided in the middle of the fixed bracket 192. A deflection motor 193 is embedded in one side of the fixed bracket 192. The output end of the deflection motor 193 is connected to a deflection mirror mount 194. A deflector is also mounted on the outer side... The device is equipped with a C-shaped bracket 195. The side of the C-shaped bracket 195 away from the fixed bracket 192 extends to the side of the deflecting mirror base 194 away from the deflecting motor 193. The C-shaped bracket 195 is rotatably connected to the deflecting mirror base 194. The deflectable reflecting device includes a second rotating rod 197, which is rotatably installed inside the deflecting mirror base 194. A second reflecting mirror 196 is fixedly installed in the middle of the outer wall of the second rotating rod 197. The lower end of the second rotating rod 197 passes through the deflecting mirror base 194. A second knob 198 is fixedly installed in the lower end of the second rotating rod 197.

[0046] In the above embodiment, it should be noted that the laser beam emitted by the fixed reflector passes through the middle of the fixed bracket 192 and enters the deflection mirror base 194. After being reflected by the second reflector 196, it finally enters the light transmission port 222 of the receiver 221. The deflection motor 193 is connected to an external power supply and control system. By starting the deflection motor 193, the deflection mirror base 194 is rotated, causing the deflection mirror base 194 to rotate along the horizontal axis. Then, by turning the second knob 198, the second rotating rod 197 drives the second reflector 196 to rotate along the vertical axis, so as to achieve the effect of adjusting the second reflector 196 to guide the laser beam into the center of the light transmission port 222 along the correct path.

[0047] Example 4, as Figure 13 As shown, a multi-angle adjustable laser cutting machine includes Embodiment 3. In addition, the fixed reflection device includes a reflector seat 171, which is fixedly installed at one end of the fixed crossbeam 14. The reflector seat 171 and the fixed seat 191 are located on the same side of the machine tool frame 12. A first rotating rod 173 is rotatably installed on the reflector seat 171. A first reflector 172 is fixedly installed in the middle of the outer wall of the first rotating rod 173. The lower end of the first rotating rod 173 passes through the reflector seat 171. A first knob 174 is fixedly installed at the lower end of the first rotating rod 173.

[0048] In the above embodiment, it should be noted that the laser beam emitted by the laser generator 18 is reflected by the first reflector 172 onto the second reflector 196. By turning the first knob 174, the first rotating rod 173 drives the first reflector 172 to rotate along the longitudinal axis, so as to adjust the first reflector 172 to guide the laser beam along the correct path to the center of the second reflector 196.

[0049] Example 5, as Figure 14 and Figure 15 As shown, a multi-angle adjustable laser cutting machine includes Embodiment 2. In addition, the longitudinal sliding device includes a longitudinal slide 161, which is disposed at both ends of the transverse guide beam 15. A connecting block 162 is installed on the top surface of the longitudinal slide 161, and the connecting block 162 is fixedly connected to the transverse guide beam 15. A first motor 163 is fixedly installed at the four corners of the top surface of the longitudinal slide 161. The output end of the first motor 163 passes downward through the longitudinal slide 161. A first guide wheel 164 is installed at the lower end of the first motor 163, and the first guide wheel 164 is disposed on both sides of the longitudinal guide beam 11.

[0050] In the above embodiments, it should be noted that the first motor 163 is connected to an external power supply and control system. By starting the first motor 163, the first guide wheel 164 is driven to rotate, which drives the transverse guide beam 15 to slide longitudinally along the surface of the longitudinal guide beam 11, so as to achieve the effect of longitudinally adjusting the emission position of the light guide tube 223.

[0051] Example 6, as Figure 5 and Figure 16 As shown, a multi-angle adjustable laser cutting machine includes Embodiment 2. In addition, the transverse sliding device includes a transverse slide 211, which is disposed on the upper and lower sides of the transverse guide beam 15. The transverse slide 211 is fixedly connected to the outer frame structure 20. A second motor 212 is fixedly installed on the transverse slide 211. A second guide wheel 213 is fixedly installed at the output end of the second motor 212. The second guide wheel 213 passes through the transverse slide 211 and is in close contact with the surface of the transverse guide beam 15.

[0052] In the above embodiment, it should be noted that the second motor 212 is connected to an external power supply and control system. By starting the second motor 212, the second guide wheel 213 is driven to rotate, which drives the outer frame structure 20 to move laterally along the surface of the transverse guide beam 15, so as to achieve the effect of adjusting the emission position of the light guide tube 223 laterally.

[0053] The usage process of this invention is as follows: Those skilled in the art place the object to be cut below the light guide tube 223, activate the laser generator 18 to emit a laser beam, and by turning the first knob 174, drive the first rotating rod 173 to rotate the first reflecting mirror 172 along the longitudinal axis. Adjust the first reflecting mirror 172 to reflect the laser beam emitted by the laser generator 18 onto the second reflecting mirror 196. Then, activate the deflection motor 193 to rotate the deflection mirror base 194, causing the deflection mirror base 194 to rotate along the transverse axis. Finally, by turning the second knob 198, drive the second rotating rod 196... 7. Drive the second reflector 196 to rotate along the longitudinal axis. Adjust the second reflector 196 to guide the laser beam into the center of the light passage 222. The laser beam passes through the light passage 222 and enters the receiver 221. Under the reflection of the third reflector 26, it enters the light guide tube 223. The beam inside the light guide tube 223 is refracted by the focusing lens 229 and exits from the lower end of the light guide tube 223, converging on the surface of the object to be cut. At the same time, the third motor 25 is started to drive the fan 24 to blow downwards. The airflow enters the airflow sleeve 225 and is blown out from the lower end of the airflow sleeve 225, blowing away the high-temperature vaporized material, thereby achieving laser cutting of the object. The effect is as follows: When angle adjustment is required, the hydraulic push rods 233 around the light guide tube 223 are activated. The hydraulic push rods 233 push the short rods 232 and long rods 231 around the light guide tube 223 to rotate and extend or retract, pushing the upper end of the light guide tube 223 to the designated coordinate position on the surface of the base plate 224, causing the light guide tube 223 to deflect, precisely controlling the incident angle of the laser beam and the material surface; while the upper end of the light guide tube 223 deflects, the outer wall of the light guide tube 223 will tilt and move closer to one side of the upper inner wall of the spherical shell 226. Under the action of the light guide tube 223, the light guide tube 223 and the spherical shell 226... The opening on the side closer to the light guide tube 223 becomes smaller, while the opening on the side farther away from the light guide tube 223 and the spherical shell 226 becomes larger, which increases the ventilation volume on the side away from the light guide tube 223 and blows it towards the high-temperature side of the laser cutting hole for cooling. Since the deflection of the light guide tube 223 will cause the receiver 221 to deflect, it is necessary to restart the deflection motor 193 to drive the deflection mirror mount 194 to rotate, so that the deflection mirror mount 194 rotates along the horizontal axis. Then, by turning the second knob 198, the second rotating rod 197 drives the second reflector 196 to rotate along the vertical axis, and the second reflector 196 is adjusted to correctly guide the laser beam into the center of the light passage 222.

[0054] The above description is merely a preferred embodiment of the present invention. Any person skilled in the art can modify the present invention or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A multi-angle adjustable laser cutting machine, comprising a machine tool frame (12), characterized in that: The machine tool frame (12) is provided with longitudinal guide beams (11) on both sides above. A lifting rod (13) is fixedly installed between the longitudinal guide beams (11) and the machine tool frame (12). A fixed crossbeam (14) is fixedly installed at the top of one end of the longitudinal guide beam (11). A laser generator (18) is installed on the fixed crossbeam (14). A fixed reflection device is installed at one end of the fixed crossbeam (14). A transverse guide beam (15) is mounted on the top surface of the longitudinal guide beam (11). A longitudinal sliding device is installed at both ends of the transverse guide beam (15). A deflectable reflection device is installed at one end of the transverse guide beam (15). An outer frame structure (20) is provided on one side of the transverse guide beam (15). The outer frame structure (20) and the transverse guide beam (15) are connected. A horizontal sliding device is installed between the outer frame structure (20). A fan (24) is installed on the top of the outer frame structure (20). A third motor (25) is connected to the top of the fan (24). A base plate (224) is installed at the lower end of the outer frame structure (20). An airflow sleeve (225) is installed at the bottom of the base plate (224). An adjustable focusing device is installed inside the outer frame structure (20). The adjustable focusing device includes a light guide tube (223). The lower end of the light guide tube (223) extends into the airflow sleeve (225). An airflow control structure is provided between the airflow sleeve (225) and the light guide tube (223). The adjustable focusing device also includes a receiver (221). The receiver (221) is located inside the outer frame structure (20). At the very center of the receiver (221), the top of the receiver (221) is set as an arc surface. A light-passing port (222) is set on one side of the receiver (221) perpendicular to the horizontal guide beam (15). A third reflector (26) is fixedly installed inside the receiver (221). The upper end of the light guide tube (223) is connected to the bottom of the receiver (221). A focusing lens (229) is installed on the inner wall of the lower end of the light guide tube (223). The adjustable focusing device also includes a long rod (231). Several of the long rods (231) are arranged around the light guide tube (223). A short rod (232) is rotatably installed at the end of the long rod (231) near the light guide tube (223). A hydraulic push rod (233) is rotatably installed at the bottom of the short rod (232). The output end of the hydraulic push rod (233) extends to the bottom of the long rod (231), and the output end of the hydraulic push rod (233) is rotatably connected to the long rod (231). The top surface of the base plate (224) is provided with a groove, and the inner wall of the groove of the base plate (224) is provided with an annular sliding groove (236). The end of the long rod (231) away from the short rod (232) is rotatably mounted with a rotating end head (234), and a sliding ball (235) is mounted on the rotating end head (234). The sliding ball (235) is slidably mounted in the annular sliding groove (236). The end of the short rod (232) away from the long rod (231) is rotatably mounted with a ball joint (237), and the ball joint (237) is rotatably mounted in the joint ball seat (238).The joint ball seat (238) is fixedly installed around the outer wall of the light guide tube (223). The airflow control structure includes a spherical shell (226), which is installed on the inner wall of the lower port of the airflow sleeve (225). The spherical shell (226) has openings on its upper and lower sides. An inner liner plate (227) is provided on the outer side of the lower end of the light guide tube (223). The inner liner plate (227) has an annular structure. The outer wall of the inner liner plate (227) is set as a curved surface that fits the inner wall of the spherical shell (226). Several connecting plates (228) are fixedly installed between the inner wall of the inner liner plate (227) and the outer wall of the light guide tube (223). The inner liner plate (227) is rotatably installed on the inner wall of the spherical shell (226).

2. The multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The deflectable reflector includes a fixed base (191), which is installed at one end of a transverse guide beam (15). The fixed base (191) is located on the side of the receiver (221) where a light-transmitting port (222) is provided. A fixed bracket (192) is installed on the side of the fixed base (191) away from the transverse guide beam (15). An opening is provided in the middle of the fixed bracket (192). A deflection motor (193) is embedded on one side of the fixed bracket (192). The output end of the deflection motor (193) is connected to the deflection mirror mount (194). A C-shaped bracket (195) is also installed on the outside. The side of the C-shaped bracket (195) away from the fixed bracket (192) extends to the side of the deflection mirror mount (194) away from the deflection motor (193). The C-shaped bracket (195) is rotatably connected to the deflection mirror mount (194).

3. The multi-angle adjustable laser cutting machine according to claim 2, characterized in that: The deflectable reflector includes a second rotating rod (197), which is rotatably mounted inside the deflector mount (194). A second reflector (196) is fixedly mounted on the middle of the outer wall of the second rotating rod (197). The lower end of the second rotating rod (197) passes through the deflector mount (194), and a second knob (198) is fixedly mounted on the lower end of the second rotating rod (197).

4. A multi-angle adjustable laser cutting machine according to claim 3, characterized in that: The fixed reflection device includes a reflector mount (171), which is fixedly installed at one end of a fixed crossbeam (14). The reflector mount (171) and the fixed seat (191) are located on the same side of the machine tool frame (12). A first rotating rod (173) is rotatably installed on the reflector mount (171). A first reflector (172) is fixedly installed in the middle of the outer wall of the first rotating rod (173). The lower end of the first rotating rod (173) passes through the reflector mount (171). A first knob (174) is fixedly installed at the lower end of the first rotating rod (173).

5. A multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The longitudinal sliding device includes a longitudinal slide (161), which is disposed at both ends of the transverse guide beam (15). A connecting block (162) is installed on the top surface of the longitudinal slide (161), and the connecting block (162) is fixedly connected to the transverse guide beam (15). A first motor (163) is fixedly installed at the four corners of the top surface of the longitudinal slide (161). The output end of the first motor (163) passes downward through the longitudinal slide (161). A first guide wheel (164) is installed at the lower end of the first motor (163), and the first guide wheel (164) is disposed on both sides of the longitudinal guide beam (11).

6. A multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The transverse sliding device includes a transverse slide (211), which is disposed on the upper and lower sides of the transverse guide beam (15). The transverse slide (211) is fixedly connected to the outer frame structure (20). A second motor (212) is fixedly installed on the transverse slide (211). A second guide wheel (213) is fixedly installed at the output end of the second motor (212). The second guide wheel (213) passes through the transverse slide (211) and is in close contact with the surface of the transverse guide beam (15).

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