Opposite-emission type laser cutting device

Abstract

The utility model relates to the technical field of laser cutting, and provides a correlation type laser cutting device which comprises a first laser device and a second laser device, and the first laser device and the second laser device are arranged up and down in a spaced mode. The receiving end of the first galvanometer assembly is communicated with the transmitting end of the first laser; the receiving end of the second galvanometer assembly is communicated with the transmitting end of the second laser, and the emitting end of the second galvanometer assembly and the emitting end of the first galvanometer assembly are oppositely arranged in a staggered mode in the vertical direction. According to the correlation type laser cutting device, the first laser device and the second laser device are vertically arranged at intervals, cutting operation can be conducted at the same time, and therefore the cutting efficiency is remarkably improved. In addition, the emergent end of the second galvanometer assembly and the emergent end of the first galvanometer assembly are arranged in an up-down opposite staggered mode, and the interference phenomenon of laser beams in the focusing process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a directed laser cutting device. Background Art

[0002] In the current wire harness, silver-plated shielding layer of wire row and thin metal cutting process, commonly used technical methods such as head cutting and fiber laser cutting have certain limitations. Although head cutting is feasible, it is inefficient and the micro-cutting effect is not ideal. Although the speed of fiber laser cutting has been improved, the problems of precision control, corner energy management and high-reflection error reporting of high-brightness materials in the cutting process still need to be solved.

[0003] Especially when using lasers for cutting, the focus and energy distribution of the laser beam are crucial to the cutting effect. In traditional cutting methods, the placement of the laser and the configuration of the galvanometer often lead to uneven energy distribution, which not only affects the cutting quality, but may also damage the equipment. Especially when a UV laser is placed above and below, if the relative position of the galvanometer center is not handled properly, it is very easy to cause interference of the laser beam and overlap of the focus point, thereby causing the risk of burning the laser window protective lens. Utility Model Content

[0004] The utility model provides a counter-beam laser cutting device, which is used to avoid the risk of burning of a laser window protection lens caused by interference of laser beams and overlap of focus points.

[0005] The utility model provides a beam laser cutting device, comprising:

[0006] A first laser and a second laser, wherein the first laser and the second laser are arranged vertically and spaced apart from each other;

[0007] A first galvanometer assembly, wherein a receiving end of the first galvanometer assembly is connected to a transmitting end of the first laser;

[0008] A second galvanometer assembly, wherein the receiving end of the second galvanometer assembly is connected to the emitting end of the second laser, and the emitting end of the second galvanometer assembly is staggered with the emitting end of the first galvanometer assembly in an up-down manner.

[0009] According to an embodiment of the utility model, the first galvanometer assembly includes:

[0010] A first X-axis lens and a first Y-axis lens are sequentially arranged along the laser irradiation direction; and

[0011] A first X-axis motor, connected to the first X-axis mirror, and used to drive the first X-axis mirror to rotate along the X-axis;

[0012] A first Y-axis motor is connected to the first Y-axis mirror and is used to drive the first Y-axis mirror to rotate along the Y-axis.

[0013] According to an embodiment of the utility model, the opposing laser cutting device provided also includes:

[0014] The first visual device is electrically connected to the first X-axis motor and the first Y-axis motor to control the rotation of the first X-axis lens and the first Y-axis lens according to the cutting image.

[0015] According to an embodiment of the utility model, the second galvanometer assembly includes:

[0016] A second X-axis lens and a second Y-axis lens are sequentially arranged along the laser irradiation direction; and

[0017] A second X-axis motor, connected to the second X-axis mirror, and used to drive the second X-axis mirror to rotate along the X-axis;

[0018] The second Y-axis motor is connected to the second Y-axis mirror and is used to drive the second Y-axis mirror to rotate along the Y-axis.

[0019] According to an embodiment of the utility model, the opposing laser cutting device provided also includes:

[0020] The second visual device is electrically connected to the second X-axis motor and the second Y-axis motor to control the rotation of the second X-axis lens and the second Y-axis lens according to the cutting image.

[0021] According to an embodiment of the utility model, the opposing laser cutting device further includes: a first beam expander connected between the receiving end of the first galvanometer assembly and the transmitting end of the first laser.

[0022] According to an embodiment of the utility model, the opposing laser cutting device further includes: a first field mirror connected to the emission end of the first galvanometer assembly.

[0023] According to an embodiment of the utility model, the opposing laser cutting device further includes: a second beam expander connected between the receiving end of the second galvanometer assembly and the transmitting end of the second laser.

[0024] According to an embodiment of the utility model, the opposed-beam laser cutting device further includes: a second field mirror connected to the emission end of the second galvanometer assembly;

[0025] The first field mirror and the second field mirror are arranged in an offset manner facing each other vertically.

[0026] According to an embodiment of the utility model, the opposing laser cutting device provided also includes:

[0027] A first rotary driving member, the first laser is connected to the first rotary driving member, and the first rotary driving member is slidably disposed on a first slide to adjust the position and angle of the first laser and the first galvanometer assembly by rotating and moving on the first slide;

[0028] A second rotary drive member, to which the second laser is connected, and the second rotary drive member is slidably disposed on a second slide to adjust the position and angle of the second laser and the second galvanometer assembly by rotating and moving on the second slide.

[0029] The utility model provides a facing laser cutting device, in which the first laser and the second laser are arranged at intervals up and down, and the corresponding galvanometer components are used to perform cutting operations at the same time, thereby significantly improving the cutting efficiency. Compared with the traditional single laser cutting method, this parallel working mode can complete more cutting tasks in the same time. Moreover, the output end of the second galvanometer component in the utility model is offset from the output end of the first galvanometer component up and down, which effectively avoids the interference of the laser beam during the focusing process. This design not only ensures that the laser beam can act on the workpiece accurately and stably, but also avoids the risk of burning of the laser window protective lens due to interference, thereby extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1 It is a schematic diagram of the opposing laser cutting device provided by the utility model;

[0032] Figure 2 This is a working schematic diagram of the first galvanometer assembly and the second galvanometer assembly provided by the utility model;

[0033] Figure 3 It is a structural schematic diagram of the first galvanometer assembly provided by the utility model;

[0034] Figure 4 It is a structural schematic diagram of the second galvanometer component provided by the utility model.

[0035] Reference numerals:

[0036] 10. first laser; 20. second laser;

[0037] 30, first galvanometer assembly; 310, first X-axis lens; 320, first Y-axis lens; 330, first X-axis motor; 340, first Y-axis motor;

[0038] 40, second galvanometer assembly; 410, second X-axis lens; 420, second Y-axis lens; 430, second X-axis motor; 440, second Y-axis motor;

[0039] 50. Workpiece; 60. First visual device; 70. Second visual device; 80. First beam expander; 90. Second beam expander; 100. First field lens; 110. Second field lens; 120. First rotary drive member; 130. Second rotary drive member; 140. First slide; 150. Second slide. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Combine the following Figures 1 to 4 The utility model describes a counter-beam laser cutting device.

[0042] In one embodiment of the present invention, Figure 1 As shown, the opposed laser cutting device comprises: a first laser 10, a second laser 20, a first galvanometer assembly 30 and a second galvanometer assembly 40. The first laser 10 and the second laser 20 are arranged vertically and spaced apart; the receiving end of the first galvanometer assembly 30 is connected to the transmitting end of the first laser 10; the receiving end of the second galvanometer assembly 40 is connected to the transmitting end of the second laser 20, and the output end of the second galvanometer assembly 40 is staggered with the output end of the first galvanometer assembly 30 in a vertically opposite manner.

[0043] In this embodiment, in addition to the simple upper and lower spacing arrangement, the power and wavelength of the first laser 10 and the second laser 20 are adjustable. By accurately controlling the power output and wavelength selection of the first laser 10 and the second laser 20, cutting of workpieces of different materials and thicknesses can be achieved.

[0044] The design of the first galvanometer assembly 30 and the second galvanometer assembly 40 has also been further improved. In this embodiment, the first galvanometer assembly 30 and the second galvanometer assembly 40 use a high-precision motor drive and control system to achieve rapid and accurate adjustment of the laser beam. At the same time, the first galvanometer assembly 30 and the second galvanometer assembly 40 also have an automatic calibration function, which can detect and compensate for the cumulative error of the mechanical position in real time to ensure the accuracy and stability of the cutting trajectory.

[0045] In the process of cutting using the opposed laser cutting device, the laser beam emitted by the first laser 10 is transmitted to the first galvanometer assembly 30, and similarly, the laser beam emitted by the second laser 20 is transmitted to the second galvanometer assembly 40. Since the output end of the second galvanometer assembly 40 is offset from the output end of the first galvanometer assembly 30, the laser beam converged by the first galvanometer assembly 30 is cut at one position on the workpiece 50, and the laser beam converged by the second galvanometer assembly 40 is cut at another position on the workpiece 50. The heat accumulation of the two is small, which effectively avoids the interference of the two laser beams on the workpiece, and ensures the accuracy and stability of the cutting.

[0046] The utility model provides a facing laser cutting device, in which the first laser 10 and the second laser 20 are arranged at intervals up and down, and the corresponding galvanometer components are matched to perform cutting operations at the same time, thereby significantly improving the cutting efficiency. Compared with the traditional single laser cutting method, this parallel working mode can complete more cutting tasks in the same time. Moreover, the output end of the second galvanometer component 40 in the utility model is offset from the output end of the first galvanometer component 30 up and down, which effectively avoids the interference of the laser beam during the focusing process. This design not only ensures that the laser beam can act on the workpiece accurately and stably, but also avoids the risk of burning of the laser window protective lens due to interference, thereby extending the service life of the equipment.

[0047] In addition, in order to further improve the cutting quality and efficiency, this embodiment can also be equipped with an intelligent control system. The system can realize real-time monitoring and intelligent adjustment of the cutting process by integrating advanced algorithms and sensor technologies. For example, the system can automatically adjust the power and cutting speed of the first laser 10 and the second laser 20 according to the material and thickness of the workpiece to obtain the best cutting effect. At the same time, the system can also detect and process abnormal situations in the cutting process in real time to ensure the safe and stable operation of the equipment.

[0048] When the laser beam irradiates the workpiece 50, the intelligent control system in the device automatically adjusts the power and cutting speed of the first laser 10 and the second laser 20 according to the material, thickness and preset cutting parameters of the workpiece. In this way, the device can perform intelligent cutting according to the actual situation of the workpiece to ensure the quality and efficiency of cutting.

[0049] In one embodiment, if Figure 2 and Figure 3 As shown, the first galvanometer assembly 30 includes: a first X-axis mirror 310, a first Y-axis mirror 320, a first X-axis motor 330 and a first Y-axis motor 340. The first X-axis mirror 310 and the first Y-axis mirror 320 are arranged in sequence along the laser irradiation direction; the first X-axis motor 330 is connected to the first X-axis mirror 310, and the first X-axis motor 330 is used to drive the first X-axis mirror 310 to rotate along the X-axis; the first Y-axis motor 340 is connected to the first Y-axis mirror 320, and the first Y-axis motor 340 is used to drive the first Y-axis mirror 320 to rotate along the Y-axis.

[0050] During operation, the laser beam emitted by the first laser 10 passes through a series of optical elements and is transmitted to the first galvanometer assembly 30. Here, the laser beam first encounters the first X-axis mirror 310. The first X-axis mirror 310 is a specially designed reflective mirror that can rotate along the X-axis direction under the drive of the first X-axis motor 330. By controlling the rotation angle and speed of the first X-axis motor 330, the reflection angle of the laser beam in the X-axis direction can be accurately adjusted, thereby changing the position of the laser beam in the horizontal direction.

[0051] Then, the laser beam reflected by the first X-axis mirror 310 continues to propagate and reaches the first Y-axis mirror 320. Similar to the first X-axis mirror, the first Y-axis mirror 320 is also a rotatable reflective mirror, but it rotates along the Y-axis direction under the drive of the first Y-axis motor 340. By controlling the first Y-axis motor 340, the reflection angle of the laser beam in the Y-axis direction can be adjusted, thereby changing the position of the laser beam in the vertical direction.

[0052] The first galvanometer assembly 30 can achieve precise control of the laser beam in a two-dimensional plane through the cooperation of the first X-axis lens 310 and the first Y-axis lens 320. This control method enables the laser beam to be quickly and accurately irradiated to the designated position on the workpiece 50, providing precise positioning and guidance for the cutting operation.

[0053] During the cutting process, the intelligent control system will adjust the rotation angle and speed of the first X-axis motor 330 and the first Y-axis motor 340 in real time according to the preset cutting trajectory and the actual situation of the workpiece. In this way, the first galvanometer assembly 30 can track and adjust the position of the laser beam in real time to ensure the accuracy and stability of the cutting operation.

[0054] In one example, if Figure 1As shown, the beam laser cutting device further includes a first visual device 60. The first visual device 60 is electrically connected to the first X-axis motor 330 and the first Y-axis motor 340 to control the rotation of the first X-axis lens 310 and the first Y-axis lens 320 according to the cutting image.

[0055] The first visual device 60 generally includes a high-resolution camera, an image processing unit, and an interface with a control system. It is electrically connected to the first X-axis motor 330 and the first Y-axis motor 340, and can acquire images of the cutting area in real time, and analyze and process the images quickly and accurately through the image processing unit.

[0056] During the cutting process, the first visual device 60 first captures the cutting image of the workpiece, and then extracts the contour, position, cutting path and other information of the workpiece through the image processing unit. This information is then transmitted to the control system, which calculates the target position that the laser beam needs to reach based on this information.

[0057] Next, the control system calculates the angles that the first X-axis lens 310 and the first Y-axis lens 320 need to rotate according to the target position. Then, it sends instructions to the first X-axis motor 330 and the first Y-axis motor 340 to drive the two motors to rotate, thereby driving the lenses to rotate to the specified angle. In this way, the laser beam can accurately irradiate the target position to achieve precise cutting.

[0058] By introducing the first vision device 60, the through-beam laser cutting device can obtain the actual position and cutting path of the workpiece in real time, thereby realizing accurate adjustment of the laser beam. This not only improves the cutting accuracy and stability, but also reduces the requirements for the initial position of the workpiece, making the device more flexible and easy to use.

[0059] In addition, the first visual device 60 can also be used to monitor the cutting process in real time. If a cutting deviation or abnormal situation is found, it can promptly feed back the information to the control system, and the control system will take corresponding measures to make adjustments to ensure smooth cutting.

[0060] In one embodiment, if Figure 2 and Figure 4 As shown, the second galvanometer assembly 40 includes: a second X-axis mirror 410, a second Y-axis mirror 420, a second X-axis motor 430 and a second Y-axis motor 440. The second X-axis mirror 410 and the second Y-axis mirror 420 are arranged in sequence along the laser irradiation direction; the second X-axis motor 430 is connected to the second X-axis mirror 410, and the second X-axis motor 430 is used to drive the second X-axis mirror 410 to rotate along the X-axis; the second Y-axis motor 440 is connected to the second Y-axis mirror 420, and the second Y-axis motor 440 is used to drive the second Y-axis mirror 420 to rotate along the Y-axis.

[0061] During operation, the laser beam emitted by the second laser 20 passes through a series of optical elements and is transmitted to the second galvanometer assembly 40. Here, the laser beam first encounters the second X-axis lens 410. The second X-axis lens 410 is a specially designed reflective lens that can rotate along the X-axis direction under the drive of the second X-axis motor 430. By controlling the rotation angle and speed of the second X-axis motor 430, the reflection angle of the laser beam in the X-axis direction can be accurately adjusted, thereby changing the position of the laser beam in the horizontal direction.

[0062] Then, the laser beam reflected by the second X-axis mirror 410 continues to propagate and reaches the second Y-axis mirror 420. Similar to the second X-axis mirror, the second Y-axis mirror 420 is also a rotatable reflective mirror, but it rotates along the Y-axis direction under the drive of the second Y-axis motor 440. By controlling the second Y-axis motor 440, the reflection angle of the laser beam in the Y-axis direction can be adjusted, thereby changing the position of the laser beam in the vertical direction.

[0063] The second galvanometer assembly 40 can achieve precise control of the laser beam in a two-dimensional plane through the cooperation of the second X-axis lens 410 and the second Y-axis lens 420. This control method enables the laser beam to be quickly and accurately irradiated to the specified position on the workpiece 50, providing precise positioning and guidance for the cutting operation.

[0064] During the cutting process, the intelligent control system will adjust the rotation angle and speed of the second X-axis motor 430 and the second Y-axis motor 440 in real time according to the preset cutting trajectory and the actual situation of the workpiece. In this way, the second galvanometer assembly 40 can track and adjust the position of the laser beam in real time to ensure the accuracy and stability of the cutting operation.

[0065] In one example, if Figure 1 As shown, the beam laser cutting device further includes a second visual device 70. The second visual device 70 is electrically connected to the second X-axis motor 430 and the second Y-axis motor 440 to control the rotation of the second X-axis lens 410 and the second Y-axis lens 420 according to the cutting image.

[0066] The second visual device 70 generally includes a high-resolution camera, an image processing unit, and an interface with a control system. It is electrically connected to the second X-axis motor 430 and the second Y-axis motor 440, and can acquire images of the cutting area in real time, and analyze and process the images quickly and accurately through the image processing unit.

[0067] During the cutting process, the second vision device 70 first captures the cutting image of the workpiece, and then extracts the workpiece contour, position, cutting path and other information through the image processing unit. This information is then transmitted to the control system, which calculates the target position that the laser beam needs to reach based on this information.

[0068] Next, the control system calculates the angles that the second X-axis lens 410 and the second Y-axis lens 420 need to rotate according to the target position. Then, it sends instructions to the second X-axis motor 430 and the second Y-axis motor 440 to drive the two motors to rotate, thereby driving the lenses to rotate to the specified angle. In this way, the laser beam can accurately irradiate the target position and achieve precise cutting.

[0069] By introducing the second vision device 70, the through-beam laser cutting device can obtain the actual position and cutting path of the workpiece in real time, thereby realizing accurate adjustment of the laser beam. This not only improves the cutting accuracy and stability, but also reduces the requirements for the initial position of the workpiece, making the device more flexible and easy to use.

[0070] In addition, the second visual device 70 can also be used to monitor the cutting process in real time. If a cutting deviation or abnormal situation is found, it can promptly feed back the information to the control system, and the control system will take corresponding measures to make adjustments to ensure smooth cutting.

[0071] In some embodiments, Figure 1 As shown, the opposed-type laser cutting device also includes: a first beam expander 80. The first beam expander 80 is connected between the receiving end of the first galvanometer assembly 30 and the transmitting end of the first laser 10. The function of the first beam expander 80 is to change the diameter and divergence angle of the laser beam, thereby achieving beam expansion of the laser beam. Specifically, the first beam expander 80 increases the diameter of the laser beam through the internal lens group, and reduces its divergence angle, so that the laser beam has a more uniform energy distribution and a smaller spot size after beam expansion.

[0072] Such a design has significant advantages for laser cutting. First, the expanded laser beam can irradiate the workpiece 50 more evenly, avoiding cutting quality problems caused by uneven energy distribution. Second, a smaller spot size means a higher energy density, which is essential for achieving precise and fast cutting. In addition, the beam expander also helps to reduce the loss of the laser beam during transmission and improve the efficiency of the laser.

[0073] In the beam-type laser cutting device, the introduction of the first beam expander 80 not only improves the quality of the laser beam, but also makes the entire cutting system more stable and reliable. By working in coordination with the first galvanometer assembly 30 and the first laser 10, the device can achieve high-precision and high-efficiency cutting operations to meet the processing requirements of various complex workpieces.

[0074] In addition, a first field lens 100 may be added, and the first field lens 100 is connected to the exit end of the first galvanometer assembly 30. The first field lens 100 can adjust or change certain characteristics of the light beam emitted from the first galvanometer assembly 30, such as focal length, spot size, divergence angle, etc. This helps to ensure that the light beam can be more effectively transmitted and processed in subsequent optical elements.

[0075] Secondly, the first field lens 100 may be used to correct aberrations or distortions introduced by the first galvanometer assembly 30 or other optical elements. Aberrations in an optical system may cause image quality degradation, and appropriate lens design can compensate for these aberrations, thereby improving the imaging quality of the system.

[0076] In addition, the first field lens 100 may also be used to change the propagation direction of the light beam or to achieve a specific light path layout, which helps to optimize the spatial layout of the system, making the entire system more compact and efficient.

[0077] It should be noted that when adding the first field lens 100, it is necessary to consider its matching with the first galvanometer assembly 30. It is necessary to ensure that the optical parameters (such as focal length, numerical aperture, etc.) of the two are matched to achieve the best optical performance. At the same time, factors such as the selection of lens materials, processing accuracy, and assembly and debugging need to be considered to ensure the stability and reliability of the entire system.

[0078] In some embodiments, Figure 1 As shown, the beam-type laser cutting device further includes: a second beam expander 90. The second beam expander 90 is connected between the receiving end of the second galvanometer assembly 40 and the transmitting end of the second laser 20. The second beam expander 90 can expand the diameter of the laser beam emitted from the second laser 20. This helps to reduce the divergence angle of the beam, so that the beam maintains better directionality and stability during propagation. For laser cutting applications, a stable beam can ensure higher cutting accuracy and better cutting quality.

[0079] Secondly, the use of the second beam expander 90 can also adjust the power density distribution of the laser beam. By optimizing the power density distribution of the beam, the laser energy can be more evenly applied to the material being cut, reducing the heat-affected zone and thermal deformation, thereby improving the cutting effect.

[0080] In addition, the introduction of the second beam expander 90 may also take into account the requirements of system integration and optical path layout. It can help adjust the optical path, making the structure of the entire laser cutting device more compact and reasonable. This has positive significance for reducing the size of the device, reducing manufacturing costs and improving the maintainability of the equipment.

[0081] It should be noted that the design and selection of the second beam expander 90 should be determined according to the output characteristics of the second laser 20, the receiving requirements of the second galvanometer assembly 40, and the specific cutting application requirements.

[0082] Similarly, a second field mirror 110 may be further provided, and the second field mirror 110 is connected to the emission end of the second galvanometer assembly 40 ; the first field mirror 100 and the second field mirror 110 are arranged in an offset manner facing each other vertically.

[0083] The introduction of the second field mirror 110 has a similar function to the first field mirror 100, both of which are used to adjust or change certain characteristics of the light beam. Specifically, the second field mirror 110 can adjust the focal length, spot size, divergence angle, etc. of the light beam emitted from the second galvanometer assembly 40 to ensure that the light beam can achieve the best effect in the subsequent transmission or processing process.

[0084] Secondly, by setting the first field mirror 100 and the second field mirror 110 to be offset up and down, the system can achieve more advanced beam control. This offset design helps to avoid mutual interference between the two laser beams during transmission, ensuring that they can reach the target position independently and accurately. At the same time, this design may also bring more flexibility to the system, making it easier to adjust the path and characteristics of the beam in specific application scenarios.

[0085] Furthermore, from the perspective of system integration, adding a second field mirror 110 and adopting a vertically staggered design may help optimize the spatial layout of the entire device and improve the compactness and maintainability of the equipment.

[0086] In some embodiments, the first laser 10 and the second laser 20 can be one of a picosecond laser, a femtosecond laser or a nanosecond laser as required. These three lasers have their own characteristics and are suitable for different scenarios and needs.

[0087] Among them, picosecond lasers show the characteristics of ultra-short pulse width and high peak power in cutting applications. Its extremely high energy density can be focused on the material in a very short time, achieving fast and precise cutting. This makes picosecond lasers excellent in cutting thin materials, fine patterns or applications requiring high edge quality. Whether in microelectronics manufacturing, optoelectronic device processing or precision medical device manufacturing, picosecond lasers can provide high-quality cutting results. Femtosecond lasers are known for their ultra-fast pulse speed and high-precision cutting capabilities. Its pulse width reaches the femtosecond level, which can produce a high degree of nonlinear effects inside the material and achieve a very fine cutting process. This gives femtosecond lasers unique advantages in cutting transparent materials, thin films or applications requiring extremely high precision cutting. Nanosecond lasers are favored in cutting applications for their stable output and efficient processing capabilities. Nanosecond lasers have high peak power and short pulse width, and can complete cutting tasks in a short time. It is suitable for cutting and processing of various materials, including metals, non-metals and composite materials. In industrial production lines, nanosecond lasers are often used in automated cutting systems to improve production efficiency and cutting quality.

[0088] In summary, picosecond lasers, femtosecond lasers, and nanosecond lasers have their own characteristics in cutting applications. According to the specific application requirements and material properties, choosing the right laser type is the key to achieving high-quality cutting. Whether it requires high-precision, high-edge quality cutting, or requires efficient and stable cutting processing, these lasers can provide ideal solutions.

[0089] In some embodiments, Figure 1 As shown, the opposed laser cutting device further includes: a first rotary drive member 120 and a second rotary drive member 130. The first laser 10 is connected to the first rotary drive member 120, and the first rotary drive member 120 is slidably disposed on the first slide 140, so as to adjust the position and angle of the first laser 10 and the first galvanometer assembly 30 by rotating and moving on the first slide 140; this design allows the operator to not only move the first laser horizontally or vertically on the first slide 140 to reach a predetermined cutting position, but also adjust the angle of the laser through the first rotary drive member 120 to ensure that the laser beam can be irradiated onto the target object in the correct direction.

[0090] At the same time, the second laser 20 is connected to the second rotary drive member 130, and the second rotary drive member 130 is slidably disposed on the second slide 150, so as to adjust the position and angle of the second laser 20 and the second galvanometer assembly 40 by rotating and moving on the second slide 150. In this way, the second laser 20 can also achieve the movement and angle adjustment functions similar to the first laser 10, thereby ensuring that the opposite laser beams can be accurately aligned to achieve efficient cutting operations.

[0091] It should be noted that, by providing the first rotary drive member 120, the second rotary drive member 130 and the slide, the operator can quickly adapt to objects of different sizes and shapes and achieve diversified cutting requirements. At the same time, this structure is also conducive to the maintenance and care of the equipment, because each component can be adjusted and replaced relatively independently.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A beam laser cutting device, characterized in that: include: A first laser and a second laser, wherein the first laser and the second laser are arranged vertically and spaced apart from each other; A first galvanometer assembly, wherein a receiving end of the first galvanometer assembly is connected to a transmitting end of the first laser; A second galvanometer assembly, wherein the receiving end of the second galvanometer assembly is connected to the emitting end of the second laser, and the emitting end of the second galvanometer assembly is staggered with the emitting end of the first galvanometer assembly in an up-down manner.

2. The opposed-beam laser cutting device according to claim 1, characterized in that: The first galvanometer assembly comprises: A first X-axis lens and a first Y-axis lens are sequentially arranged along the laser irradiation direction; and A first X-axis motor, connected to the first X-axis mirror, and used to drive the first X-axis mirror to rotate along the X-axis; A first Y-axis motor is connected to the first Y-axis mirror and is used to drive the first Y-axis mirror to rotate along the Y-axis.

3. The opposed-beam laser cutting device according to claim 2, characterized in that: Also includes: The first visual device is electrically connected to the first X-axis motor and the first Y-axis motor to control the rotation of the first X-axis lens and the first Y-axis lens according to the cutting image.

4. The through-beam laser cutting device according to claim 1, characterized in that: The second galvanometer assembly comprises: A second X-axis lens and a second Y-axis lens are sequentially arranged along the laser irradiation direction; and A second X-axis motor, connected to the second X-axis mirror, and used to drive the second X-axis mirror to rotate along the X-axis; The second Y-axis motor is connected to the second Y-axis mirror and is used to drive the second Y-axis mirror to rotate along the Y-axis.

5. The opposed-beam laser cutting device according to claim 4, characterized in that: Also includes: The second visual device is electrically connected to the second X-axis motor and the second Y-axis motor to control the rotation of the second X-axis lens and the second Y-axis lens according to the cutting image.

6. The through-beam laser cutting device according to claim 1, characterized in that: Also includes: The first beam expander is connected between the receiving end of the first galvanometer assembly and the transmitting end of the first laser.

7. The opposed-beam laser cutting device according to claim 6, characterized in that: Also includes: The first field mirror is connected to the output end of the first galvanometer assembly.

8. The opposed-beam laser cutting device according to claim 7, characterized in that: Also includes: The second beam expander is connected between the receiving end of the second galvanometer assembly and the emitting end of the second laser.

9. The opposed-beam laser cutting device according to claim 8, characterized in that: Also includes: A second field mirror, connected to the output end of the second galvanometer assembly; The first field mirror and the second field mirror are arranged in an offset manner facing each other vertically.

10. The opposed-beam laser cutting device according to any one of claims 1 to 9, characterized in that: Also includes: A first rotary drive member, the first laser is connected to the first rotary drive member, and the first rotary drive member is slidably disposed on a first slide to adjust the position and angle of the first laser and the first galvanometer assembly by rotating and moving on the first slide; A second rotating driving member, the second laser is connected to the second rotating driving member, and the second rotating driving member is slidably disposed on a second slide to adjust the position and angle of the second laser and the second galvanometer assembly by rotating and moving on the second slide.

Images