Multi-angle adjustable laser cutting machine

Abstract

The invention relates to the technical field of laser cutting machines, in particular to a multi-angle adjustable laser cutting machine which adopts the technical scheme that the multi-angle adjustable laser cutting machine comprises a machine tool frame, longitudinal guide beams are arranged above the two sides of the machine tool frame, a fixed cross beam is fixedly mounted at the top of one end of each longitudinal guide beam, and a laser generator is mounted on each fixed cross beam; a fixed reflection device is installed at one end of the fixed cross beam, a transverse guide beam is erected on the top face of the longitudinal guide beam, a deflectable reflection device is installed at one end of the transverse guide beam, an outer frame structure is arranged on one side of the transverse guide beam, an adjustable light gathering device is installed in the outer frame structure, and the adjustable light gathering device comprises a light guide pipe. The laser cutting device has the beneficial effects that the adjustable light gathering device is started to drive the light guide pipe to deflect, the laser emitting angle is adjusted, the deflectable reflection device is started to conduct deflection adjustment according to deflection of the adjustable light gathering device, and therefore the effect that the laser transmission path is adjusted in real time according to the adjusted laser cutting angle is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting machines, and particularly relates to a laser cutting machine with multi-angle adjustment. Background Art

[0002] A laser cutting machine is a device that uses the high energy density of a laser beam for cutting. In industries such as metal processing, its principle is to emit a laser beam through a laser and focus the laser on the surface of the material, causing the material to evaporate, melt, or be ablated by heat, thereby achieving the cutting effect. Laser cutting machines are usually used for precise cutting of materials such as metals, plastics, wood, and stone, and are widely used in industries such as aerospace, automotive manufacturing, advertising production, furniture processing, and metal processing;

[0003] In a laser cutting machine, the laser beam is usually guided through multiple mirrors from the laser to the cutting head. When adjusting the angle of the laser beam in existing laser cutting machines, usually only the tilt angle of the cutting head is adjusted to control the incident angle of the laser beam on the material surface. The angles of the mirrors used for optical path guidance in the original optical path system usually cannot be adjusted in a timely manner. If the angles of the mirrors cannot be adjusted and correctly aligned with the optical elements, it will cause deviations in the transmission of the laser beam, resulting in the problem that even if the tilt angle of the cutting head is adjusted, the laser beam still cannot accurately reach the target position; and although the existing cutting head angle adjustment structure can perform a certain degree of angle adjustment, its adjustment accuracy is usually limited by the design and mechanical structure. Due to the limited accuracy of angle adjustment, it may cause the incident angle of the laser beam on the material surface to be unable to be accurately controlled, which may affect the cutting quality and accuracy;

[0004] The focus of a laser cutting machine is the key to achieving material cutting in laser cutting. After the laser beam is focused by a lens, it will be concentrated in a certain point area. The temperature is higher closer to this focus area, and conversely, the temperature in the area far from the focus will gradually decrease; when the cutting surface is completely perpendicular to the laser beam, the contact points of the laser beam with the material are uniform, and the cutting temperature at each point in the cutting area is the same, and the cutting process remains stable; however, for a laser cutting machine with multi-angle adjustment function, when adjusting the angle of the laser beam, the laser beam cannot be perpendicular to the cutting surface. When the laser beam irradiates on a non-perpendicular cutting surface, it may cause a higher temperature on one side of the cutting perforation, resulting in problems such as local overheating or uneven cooling, which may affect the cutting quality and the neatness of the edge;

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

[0006] To achieve the above object, the present invention provides the following technical solution: A laser cutting machine with multi-angle adjustment, including a machine tool frame. Above the two sides of the machine tool frame, there are longitudinal guide beams. Between the longitudinal guide beams and the machine tool frame, lifting rods are fixedly installed. At the top of one end of the longitudinal guide beam, a fixed cross beam is fixedly installed. A laser generator is installed on the fixed cross beam. At one end of the fixed cross beam, a fixed reflection device is installed. On the top surface of the longitudinal guide beam, a transverse guide beam is erected. At both ends of the transverse guide beam, longitudinal sliding devices are installed. At one end of the transverse guide beam, a deflectable reflection device is installed. On one side of the transverse guide beam, an outer frame structure is provided. Between the outer frame structure and the transverse guide beam, a transverse sliding device is installed. At the top of the outer frame structure, a fan is installed. The top of the fan is connected to a third motor. At the lower end of the outer frame structure, a bottom plate is installed. At the bottom of the bottom plate, an air flow sleeve is installed. Inside the outer frame structure, an adjustable light condensing device is installed. The adjustable light condensing device includes a light guide tube. The lower end of the light guide tube extends into the air flow sleeve. Between the air flow sleeve and the light guide tube, an air flow control structure is provided.

[0007] Preferably, the adjustable light condensing device includes a receiver. The receiver is arranged at the exact center inside the outer frame structure. The top of the receiver is set as an arc surface. On one side of the receiver perpendicular to the transverse guide beam, there is a light passing port. Inside the receiver, a third reflecting mirror is fixedly installed. The upper end of the light guide tube is connected to the bottom of the receiver. On the inner wall of the lower end of the light guide tube, a focusing lens is installed.

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

[0009] Preferably, on the top surface of the bottom plate, there is a groove. Around the inner wall of the groove of the bottom plate, there is an annular sliding groove. At the end of the long rod away from the short rod, a rotating end is rotatably installed. On the rotating end, a sliding bead is installed. The sliding bead is slidably installed in the annular sliding groove. At the end of the short rod away from the long rod, a spherical joint is rotatably installed. The spherical joint is rotatably installed in a joint ball seat. The joint ball seat is fixedly installed around the outer wall of the light guide tube.

[0010] Preferably, the air flow control structure includes a spherical shell. The spherical shell is installed on the inner wall of the lower port of the air flow sleeve. There are openings on both the upper and lower sides of the spherical shell. On the outer side of the lower end of the light guide tube, there is an inner lining plate. The inner lining plate is in an annular structure. The outer wall of the inner lining plate is set as a curved surface that fits the inner wall of the spherical shell. Between the inner wall of the inner lining plate and the outer wall of the light guide tube, a plurality of connecting plates are fixedly installed. The inner lining plate is rotatably installed on the inner wall of the spherical shell.

[0011] Preferably, the deflectable reflection device includes a fixed seat installed at one end of the transverse guide beam. The fixed seat is disposed on one side of the receiver where there is a light passing opening. A fixed bracket is installed on the side of the fixed seat away from the transverse guide beam. An opening is provided in the middle of the fixed bracket. A deflection motor is embedded and installed on one side of the fixed bracket. The output end of the deflection motor is connected to a deflection mirror base, and a C-shaped bracket is also installed on the outside. 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, and the C-shaped bracket is rotatably connected to the deflection mirror base.

[0012] Preferably, the deflectable reflection device includes a second rotating rod rotatably installed inside the deflection mirror base. A second reflecting mirror is fixedly installed in the middle of the outer wall of the second rotating rod. The lower end of the second rotating rod penetrates through the deflection mirror base, and a second knob is fixedly installed at the lower end of the second rotating rod.

[0013] Preferably, the fixed reflection device includes a mirror base fixedly installed at one end of the fixed cross beam. The mirror base and the fixed seat are disposed on the same side of the machine tool frame. A first rotating rod is rotatably installed on the mirror base. A first reflecting mirror is fixedly installed in the middle of the outer wall of the first rotating rod. The lower end of the first rotating rod penetrates through the mirror 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 sliding seat disposed at both ends of the transverse guide beam. A connecting block is installed on the top surface of the longitudinal sliding seat, and the connecting block is fixedly connected to the transverse guide beam. Four corners of the top surface of the longitudinal sliding seat are fixedly installed with first motors. The output ends of the first motors penetrate downward through the longitudinal sliding seat, and a first guide wheel is installed at the lower end of the first motors. The first guide wheel is disposed on both sides of the longitudinal guide beam.

[0015] Preferably, the transverse sliding device includes a transverse sliding seat disposed on the upper and lower sides of the transverse guide beam. The transverse sliding seat is fixedly connected to the outer frame structure. A second motor is fixedly installed on the transverse sliding seat. The output end of the second motor is fixedly installed with a second guide wheel. The second guide wheel penetrates through the transverse sliding seat and closely adheres to the surface of the transverse guide beam.

[0016] The beneficial effects of the present invention are as follows: When the laser generator is started to emit a laser beam, the laser sequentially passes through the reflections of the fixed reflection device and the deflectable reflection device and enters the adjustable condenser device, and then shoots downward from the light guide tube onto the surface of the object to be cut. By starting the adjustable condenser device to drive the light guide tube to deflect, the emission angle of the laser beam is adjusted. At the same time, the deflectable reflection device is started to deflect and adjust according to the deflection of the adjustable condenser device, so as to achieve the effect of adjusting the laser transmission path in real time according to the adjusted laser cutting angle, reducing the deviation occurring in the laser transmission path, being beneficial to the precise control of the incident angle of the laser beam, and thus improving the cutting quality and precision.

[0017] On the other hand, when the adjustable condenser drives the light guide tube to deflect, the air flow control structure rotates along with the deflection of the light guide tube. Through the air flow control structure, the air outlet on the side where the light guide tube deviates becomes wider, and the air outlet on the side closer to the deviation becomes narrower, so as to increase the ventilation volume on the side where the light guide tube deviates and blow it towards the high-temperature side of the laser cutting perforation, so as to achieve the effect of cooling the high-temperature side of the cutting perforation during the laser oblique cutting, thus avoiding local overheating and improving the cutting quality and the neatness of the edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The front view provided by the present invention;

[0019] Figure 2 The exploded view provided by the present invention;

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

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

[0022] Figure 5 The cross-sectional view of the transverse guide beam provided by the present invention;

[0023] Figure 6 The cross-sectional view of the adjustable condenser provided by the present invention;

[0024] Figure 7 The internal structure cross-sectional view of the air flow sleeve provided by the present invention;

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

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

[0027] Figure 10 The schematic diagram of the deflectable reflection device structure provided by the present invention;

[0028] Figure 11 The internal structure schematic diagram of the deflection mirror base provided by the present invention;

[0029] Figure 12 The other side view of the deflectable reflection device provided by the present invention;

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

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

[0032] Figure 15 Schematic installation diagram of the longitudinal sliding device provided by the present invention;

[0033] Figure 16 Schematic structural diagram of the transverse sliding device provided by the present invention.

[0034] In the figure: longitudinal guide beam 11, machine tool frame 12, lifting rod 13, fixed cross beam 14, transverse guide beam 15, longitudinal sliding seat 161, connecting block 162, first motor 163, first guide wheel 164, mirror base 171, first mirror 172, first rotating rod 173, first knob 174, laser generator 18, fixed seat 191, fixed bracket 192, deflection motor 193, deflection mirror base 194, C-shaped bracket 195, second mirror 196, second rotating rod 197, second knob 198, outer frame structure 20, transverse sliding seat 211, second motor 212, second guide wheel 213, receiver 221, light passing port 222, light guide tube 223, bottom plate 224, air flow sleeve 225, spherical shell 226, inner lining plate 227, connecting plate 228, focusing lens 229, long rod 231, short rod 232, hydraulic push rod 233, rotating end 234, sliding bead 235, annular sliding groove 236, spherical joint 237, joint ball seat 238, fan 24, third motor 25, third mirror 26. Specific embodiments

[0035] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0036] Example 1, as Figure 1 - Figure 6As shown in the figure, a laser cutting machine with multi-angle adjustment in the first aspect of the present invention includes a machine tool frame 12. Above both sides of the machine tool frame 12, there are longitudinal guide beams 11. Between the longitudinal guide beams 11 and the machine tool frame 12, lifting rods 13 are fixedly installed. At the top of one end of the longitudinal guide beam 11, a fixed cross beam 14 is fixedly installed. On the fixed cross beam 14, a laser generator 18 is installed. At one end of the fixed cross beam 14, a fixed reflection device is installed. On the top surface of the longitudinal guide beam 11, a transverse guide beam 15 is erected. At both ends of the transverse guide beam 15, longitudinal sliding devices are installed. At one end of the transverse guide beam 15, a deflectable reflection device is installed. On one side of the transverse guide beam 15, there is an outer frame structure 20. Between the outer frame structure 20 and the transverse guide beam 15, a transverse sliding device is installed. At the top of the outer frame structure 20, a fan 24 is installed. At the top of the fan 24, a third motor 25 is connected. At the lower end of the outer frame structure 20, a bottom plate 224 is installed. At the bottom of the bottom plate 224, an air flow sleeve 225 is installed. Inside the outer frame structure 20, an adjustable condenser device is installed. The adjustable condenser device includes a light guide tube 223. The lower end of the light guide tube 223 extends into the air flow sleeve 225. Between the air flow sleeve 225 and the light guide tube 223, an air flow control structure is provided.

[0037] In the above embodiment, it should be noted that the laser generator 18 is a carbon dioxide laser emitter, which is a known prior art to those skilled in the art; both the lifting rod 13 and the third motor 25 are externally connected to a power source and a 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 condenser device to approach or move away from the cutting surface, making the focus of the emitted laser beam close to the cutting object; 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 condenser device is driven to move transversely, so as to control the longitudinal and transverse movements of the adjustable condenser device.

[0038] Start the laser generator 18 to emit a laser beam. The laser passes through the reflections of the fixed reflection device and the deflectable reflection device in sequence and enters the adjustable condenser device, and then shoots downward from the light guide tube 223 onto the surface of the object to be cut. By starting the adjustable condenser device to drive the light guide tube 223 to deflect, the emission angle of the laser beam is adjusted. At the same time, start the deflectable reflection device to deflect and adjust according to the deflection of the adjustable condenser device, so as to achieve the effect of adjusting the laser transmission path in real time according to the adjusted laser cutting angle, reducing the deviation occurring in the laser transmission path, being beneficial to the precise control of the incident angle of the laser beam, and thus improving the cutting quality and precision.

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

[0040] According to the above situation of uneven heating of the cutting surface during cutting, when the adjustable condenser device drives the light guide tube 223 to deflect, the air flow control structure will rotate along with the deflection of the light guide tube 223. By means of the air flow control structure, the air outlet on the side where the light guide tube 223 deviates becomes wider, and the air outlet on the side close to it becomes narrower, so as to increase the ventilation volume on the side where the light guide tube 223 deviates and blow it towards the high-temperature side of the laser cutting perforation, so as to achieve the effect of cooling the high-temperature side of the laser cutting perforation during oblique cutting, thereby avoiding local overheating and improving the cutting quality and the neatness of the edge.

[0041] Example 2, such as Figure 3 - Figure 8As shown, a laser cutting machine with multi-angle adjustment includes Embodiment 1. In addition, the adjustable condenser device includes a receiver 221, which is arranged at the exact center inside the outer frame structure 20. The top of the receiver 221 is set as an arc surface. A light passing port 222 is arranged 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 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 condenser device includes long rods 231. A plurality of long rods 231 are arranged around the light guide tube 223. A short rod 232 is rotatably installed at one end of the long rod 231 close to 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. A groove is arranged on the top surface of the bottom plate 224. An annular sliding groove 236 is arranged around the inner wall of the groove of the bottom plate 224. A rotating end 234 is rotatably installed at one end of the long rod 231 away from the short rod 232. A sliding bead 235 is installed on the rotating end 234, and the sliding bead 235 is slidably installed in the annular sliding groove 236. A spherical joint 237 is rotatably installed at one end of the short rod 232 away from the long rod 231. The spherical joint 237 is rotatably installed in a joint ball seat 238, and the joint ball seat 238 is fixedly installed around the outer wall of the light guide tube 223. The air flow control structure includes a spherical shell 226, which is installed on the inner wall of the lower port of the air flow sleeve 225. Openings are arranged on the upper and lower sides of the spherical shell 226. A lining plate 227 is arranged on the outer side of the lower end of the light guide tube 223. The lining plate 227 is in an annular structure. The outer wall of the lining plate 227 is set as a curved surface that fits the inner wall of the spherical shell 226. A plurality of connecting plates 228 are fixedly installed between the inner wall of the lining plate 227 and the outer wall of the light guide tube 223. The lining 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 reflection device enters the receiver 221 through the light passing port 222 and enters the light guide tube 223 under the reflection of the third reflecting mirror 26. The light beam in the light guide tube 223 is refracted by the focusing lens 229 and exits from the lower end of the light guide tube 223 and converges on the surface of the cutting object. At the same time, the third motor 25 is started to drive the fan 24 to blow downward. The air flow enters the air flow sleeve 225 and is blown out from the lower end of the air flow sleeve 225 to blow away the high-temperature vaporized material, so as to achieve the effect of laser cutting the object.

[0043] The sealing performance between the spherical shell 226 and the inner lining plate 227 is good. The lower end of the light guide tube 223 is connected to the air flow sleeve 225 through the connecting plate 228, the inner lining plate 227 and the spherical shell 226. The hydraulic push rod 233 is externally connected to a power supply and a control terminal. The angle adjustment process of the adjustable condensing device is as follows: Inside the control terminal, the surface of the bottom plate 224 is evenly distributed into one coordinate position after another. Since the position of the lower end of the light guide tube 223 is fixed, only the upper part of the light guide tube 223 needs to be moved to the specified coordinate position on the bottom plate 224, and then the laser emission angle of the light guide tube 223 can be accurately deflected. By starting the hydraulic push rods 233 around the light guide tube 223, the hydraulic push rods 233 push the short rods 232 and the long rods 231 around the light guide tube 223 to rotate and extend or contract, and push the upper end of the light guide tube 223 to move to the specified coordinate position on the surface of the bottom plate 224. While the upper end of the light guide tube 223 moves, the sliding beads 235 around the light guide tube 223 will slide and adjust in the annular chute 236 by themselves, so as to effectively improve the deflection accuracy of the light guide tube 223, accurately control the incident angle of the laser beam on the material surface, and greatly improve the cutting quality;

[0044] While the upper end of the light guide tube 223 deflects, the outer wall of the light guide tube 223 will tilt and approach one side of the inner wall of the upper end of the spherical shell 226. Under the action of the light guide tube 223, the opening on the approaching side between the light guide tube 223 and the spherical shell 226 becomes smaller, while the opening on the far side between the light guide tube 223 and the spherical shell 226 becomes larger, so as to increase the ventilation volume on the deviating side of the light guide tube 223 and blow it to the high-temperature side of the laser cutting perforation for cooling.

[0045] Example 3, as Figure 9 - Figure 12 shown, a laser cutting machine with multi-angle adjustment includes Example 2. In addition, the deflectable reflection device includes a fixed seat 191. The fixed seat 191 is installed at one end of the transverse guide beam 15. The fixed seat 191 is arranged on the side of the receiver 221 where there is a light passing port 222. A fixed bracket 192 is installed on the side of the fixed seat 191 away from the transverse guide beam 15. There is an opening in the middle of the fixed bracket 192. A deflecting motor 193 is embedded and installed on one side of the fixed bracket 192. The output end of the deflecting motor 193 is connected to a deflecting mirror base 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 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 reflection device includes a second rotating rod 197. The second rotating rod 197 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 penetrates through the deflecting mirror base 194, and a second knob 198 is fixedly installed at the lower end of the second rotating rod 197.

[0046] In the above embodiments, it should be noted that the laser beam emitted by the fixed reflection device passes through the middle of the fixed bracket 192 and enters the deflection mirror base 194, and finally enters the light passing port 222 of the receiver 221 after being reflected by the second mirror 196; the deflection motor 193 is externally connected to a power supply and a control system, and by starting the deflection motor 193, the deflection mirror base 194 is driven to rotate, so that the deflection mirror base 194 rotates along the transverse axis, and then by turning the second knob 198, the second rotating rod 197 is driven to drive the second mirror 196 to rotate along the longitudinal axis, so as to achieve the effect of adjusting the second mirror 196 to guide the laser beam into the center of the light passing port 222 along the correct path.

[0047] Embodiment 4, as Figure 13 shown, a laser cutting machine with multi-angle adjustment includes Embodiment 3. In addition, the fixed reflection device includes a mirror base 171, the mirror base 171 is fixedly installed at one end of the fixed cross beam 14, the mirror base 171 and the fixed seat 191 are arranged on the same side of the machine tool frame 12, a first rotating rod 173 is rotatably installed on the mirror base 171, a first mirror 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 penetrates through the mirror base 171, and a first knob 174 is fixedly installed at the lower end of the first rotating rod 173.

[0048] In the above embodiments, it should be noted that the laser beam emitted by the laser generator 18 is reflected by the first mirror 172 to the second mirror 196. By turning the first knob 174, the first rotating rod 173 is driven to drive the first mirror 172 to rotate along the longitudinal axis, so as to achieve the effect of adjusting the first mirror 172 to guide the laser beam into the center of the second mirror 196 along the correct path.

[0049] Embodiment 5, as Figure 14 and Figure 15 shown, a laser cutting machine with multi-angle adjustment includes Embodiment 2. In addition, the longitudinal sliding device includes a longitudinal sliding seat 161, the longitudinal sliding seat 161 is arranged at both ends of the transverse guide beam 15, a connecting block 162 is installed on the top surface of the longitudinal sliding seat 161, the connecting block 162 is fixedly connected to the transverse guide beam 15, and first motors 163 are fixedly installed at the four corners of the top surface of the longitudinal sliding seat 161. The output ends of the first motors 163 penetrate through the longitudinal sliding seat 161 downward, and first guide wheels 164 are installed at the lower ends of the first motors 163. The first guide wheels 164 are arranged on both sides of the longitudinal guide beam 11.

[0050] In the above embodiments, it should be noted that the first motors 163 are externally connected to a power supply and a control system. By starting the first motors 163, the first guide wheels 164 are driven to rotate, driving the transverse guide beam 15 to longitudinally slide 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] Embodiment 6, asFigure 5 and Figure 16 As shown in Figure 16 , a laser cutting machine with multi-angle adjustment includes Embodiment 2. In addition, the lateral sliding device includes a lateral sliding seat 211 which is arranged on the upper and lower sides of the lateral guide beam 15. The lateral sliding seat 211 is fixedly connected to the outer frame structure 20. A second motor 212 is fixedly installed on the lateral sliding seat 211. The output end of the second motor 212 is fixedly installed with a second guide wheel 213. The second guide wheel 213 penetrates through the lateral sliding seat 211 and is in close contact with the surface of the lateral guide beam 15.

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

[0053] The usage process of the present invention is as follows: Those skilled in the art place the object to be cut under the light guide tube 223, start the laser generator 18 to emit a laser beam. By turning the first knob 174, drive the first rotating rod 173 to drive the first reflecting mirror 172 to rotate along the longitudinal axis, adjust the first reflecting mirror 172 to reflect the laser beam emitted by the laser generator 18 to the second reflecting mirror 196. Subsequently, start the deflection motor 193 to drive the deflection mirror base 194 to rotate, so that the deflection mirror base 194 rotates along the transverse axis. Then, by turning the second knob 198, drive the second rotating rod 197 to drive the second reflecting mirror 196 to rotate along the longitudinal axis, adjust the second reflecting mirror 196 to guide the laser beam into the center of the light passing port 222. The laser beam enters the receiver 221 through the light passing port 222 and enters the light guide tube 223 under the reflection of the third reflecting mirror 26. The light beam in the light guide tube 223 is refracted by the focusing lens 229 and exits from the lower end of the light guide tube 223 and converges on the surface of the cutting object. At the same time, start the third motor 25 to drive the fan 24 to blow downward, and the air flow enters the air flow sleeve 225 and then blows out from the lower end of the air flow sleeve 225 to blow away the high-temperature vaporized material, so as to achieve the effect of laser cutting the object; when angle adjustment is required, start the hydraulic push rods 233 around the light guide tube 223, and the hydraulic push rods 233 push the short rods 232 and the long rods 231 around the light guide tube 223 to rotate and extend or contract, and push the upper end of the light guide tube 223 to move to the specified coordinate position on the surface of the bottom plate 224, driving the light guide tube 223 to deflect and accurately control the incident angle of the laser beam on 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 approach one side of the inner wall of the upper end of the spherical shell 226. Under the action of the light guide tube 223, the opening on the side where the light guide tube 223 and the spherical shell 226 are close becomes smaller, while the opening on the side where the light guide tube 223 and the spherical shell 226 are far away becomes larger, increasing the ventilation volume on the side where the light guide tube 223 deviates and blowing towards the high-temperature side of the laser cutting perforation for cooling; since the deflection of the light guide tube 223 will drive the receiver 221 to deflect, it is necessary to start the deflection motor 193 again to drive the deflection mirror base 194 to rotate, so that the deflection mirror base 194 rotates along the transverse axis. Then, by turning the second knob 198, drive the second rotating rod 197 to drive the second reflecting mirror 196 to rotate along the longitudinal axis, and adjust the second reflecting mirror 196 to correctly guide the laser beam into the center of the light passing port 222.

[0054] As described above, it is only a preferred embodiment of the present invention. Any person skilled in the art may modify the present invention by using the technical solutions described above or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solutions of the present invention belongs to the scope of protection required by the present invention.

Claims

1. A multi-angle adjustable laser cutting machine, comprising a machine tool frame (12), characterized in that: A longitudinal guide beam (11) is arranged above both sides of the machine tool frame (12); a lifting rod (13) is fixedly installed between the longitudinal guide beam (11) and the machine tool frame (12); a fixed crossbeam (14) is fixedly installed on 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 arranged on the top surface of the longitudinal guide beam (11); longitudinal sliding devices are 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 (2 0), 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 bottom 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 bottom plate (224), and an adjustable focusing device is installed in the outer frame structure (20), and the adjustable focusing device includes a light guide tube (223), and the lower end of the light guide tube (223) extends into the airflow sleeve (225), and an airflow control structure is provided between the airflow sleeve (225) and the light guide tube (223).

2. The multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The adjustable focusing device comprises a receiver (221), the receiver (221) is arranged at the center inside the outer frame structure (20), the top of the receiver (221) is arranged as a curved surface, a light opening (222) is arranged on one side of the receiver (221) perpendicular to the transverse 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), and a focusing lens (229) is installed on the inner wall of the lower end of the light guide tube (223).

3. The multi-angle adjustable laser cutting machine according to claim 2, characterized in that: The adjustable focusing device comprises a long rod (231), a plurality of the long rods (231) are arranged around the light guide tube (223), a short rod (232) is rotatably mounted on one end of the long rod (231) close to the light guide tube (223), a hydraulic push rod (233) is rotatably mounted on the bottom of the short rod (232), an 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).

4. The multi-angle adjustable laser cutting machine according to claim 3, characterized in that: The top surface of the bottom plate (224) is provided with a groove, and the inner wall of the groove of the bottom plate (224) is provided with an annular sliding groove (236) around the periphery. 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 a joint ball seat (238). The joint ball seat (238) is fixedly mounted around the outer wall of the light guide tube (223).

5. The multi-angle adjustable laser cutting machine according to claim 4, characterized in that: The airflow control structure comprises a spherical shell (226), the spherical shell (226) being mounted on the inner wall of the lower port of the airflow sleeve (225), the spherical shell (226) being provided with openings on the upper and lower sides, an inner lining plate (227) being provided on the outer side of the lower end of the light guide tube (223), the inner lining plate (227) being in an annular structure, the outer wall of the inner lining plate (227) being arranged as a curved surface fitting the inner wall of the spherical shell (226), a plurality of connecting plates (228) being fixedly mounted between the inner wall of the inner lining plate (227) and the outer wall of the light guide tube (223), and the inner lining plate (227) being rotatably mounted on the inner wall of the spherical shell (226).

6. The multi-angle adjustable laser cutting machine according to claim 2, characterized in that: The deflectable reflection device comprises a fixing seat (191), the fixing seat (191) being mounted on one end of a transverse guide beam (15), the fixing seat (191) being arranged on a side of a receiver (221) provided with a light-through port (222), a fixing bracket (192) being mounted on a side of the fixing seat (191) away from the transverse guide beam (15), an opening being arranged in the middle of the fixing bracket (192), a deflection motor (193) being embedded and mounted on one side of the fixing bracket (192), an output end of the deflection motor (193) being connected to a deflection mirror seat (194), and a C-shaped bracket (195) being mounted on the outside, the side of the C-shaped bracket (195) away from the fixing bracket (192) extending to the side of the deflection mirror seat (194) away from the deflection motor (193), and the C-shaped bracket (195) being rotatably connected to the deflection mirror seat (194).

7. The multi-angle adjustable laser cutting machine according to claim 6, characterized in that: The deflectable reflection device comprises a second rotating rod (197), the second rotating rod (197) is rotatably mounted inside the deflection mirror seat (194), a second reflection mirror (196) is fixedly mounted on the middle part of the outer wall of the second rotating rod (197), the lower end of the second rotating rod (197) passes through the deflection mirror seat (194), and a second knob (198) is fixedly mounted on the lower end of the second rotating rod (197).

8. The multi-angle adjustable laser cutting machine according to claim 7, characterized in that: The fixed reflection device comprises a reflector seat (171), the reflector seat (171) is fixedly mounted on one end of a fixed crossbeam (14), the reflector seat (171) and a fixed seat (191) are arranged on the same side of a machine tool frame (12), a first rotating rod (173) is rotatably mounted on the reflector seat (171), a first reflector (172) is fixedly mounted on the middle part of an outer wall of the first rotating rod (173), the lower end of the first rotating rod (173) passes through the reflector seat (171), and a first knob (174) is fixedly mounted on the lower end of the first rotating rod (173).

9. The multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The longitudinal sliding device comprises a longitudinal sliding seat (161), the longitudinal sliding seat (161) is arranged at both ends of the transverse guide beam (15), a connecting block (162) is installed on the top surface of the longitudinal sliding seat (161), 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 sliding seat (161), an output end of the first motor (163) passes through the longitudinal sliding seat (161) downwards, a first guide wheel (164) is installed at the lower end of the first motor (163), and the first guide wheel (164) is arranged on both sides of the longitudinal guide beam (11).

10. The multi-angle adjustable laser cutting machine according to claim 1, characterized in that: The transverse sliding device comprises a transverse slide (211), the transverse slide (211) is arranged 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 mounted on the transverse slide (211), a second guide wheel (213) is fixedly mounted on the output end of the second motor (212), and the second guide wheel (213) passes through the transverse slide (211) and is closely attached to the surface of the transverse guide beam (15).

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