Laser engraving device with double lasers

Abstract

The utility model relates to the technical field of laser processing equipment, in particular to a laser engraving device with double lasers, which comprises a horizontal guide rail groove and a vertical guide rail groove, the horizontal guide rail groove is embedded on the side wall of a building corridor, and a horizontal driving motor is fixed at one end of the horizontal guide rail groove through a screw. The vertical guide rail groove embedded in the wall is formed below the end, provided with the horizontal driving motor, of the horizontal guide rail groove, and a vertical driving motor is fixed to the upper end of the vertical guide rail groove through screws. The beneficial effects are that a plurality of laser light sources are arranged in the light shield, a plurality of laser beams are combined together by using the reflector and the beam combiner to form a group of laser beams, and the laser beams are emitted from the laser, so that the energy of the laser beams is increased; after the laser beams of the two lasers are combined, the focus lens can be driven to adjust the height from the focus lens to the beam combiner by controlling the work of the vertical moving stepping motor so as to realize the automatic adjustment of the focal length, and materials with different thicknesses can be conveniently processed.

Description

Technical Field

[0001] This utility model relates to the field of laser processing equipment technology, and in particular to a laser engraving device with dual lasers. Background Technology

[0002] Laser engraving machines are high-tech products that combine laser technology and computer technology. They are laser processing equipment that integrates optics, mechanics, and electronics. Laser engraving machines can engrave various images, texts, and graphics inside crystal glass, giving people a crystal-clear and pristine visual image.

[0003] In existing laser engraving machines, because the laser head moves back and forth driven by a motor, we have found in practical applications that the distance from the laser output port to the laser head is inversely proportional to the laser energy. That is, the closer to the output port, the stronger the laser energy, and vice versa. Due to changes in light intensity, the laser beam reaching the focusing lens will change in size, although very slightly, it still has an impact.

[0004] Chinese patent application number 202321502920.4 discloses a novel high-speed engraving device using dual semiconductor lasers, comprising an integrated laser engraving groove, with a light-shielding plate at the upper end of the groove. In the aforementioned patent, the laser emitted from a single laser source has weak light energy. Utility Model Content

[0005] The present invention provides a laser engraving device with dual lasers to solve the above-mentioned problems.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A dual-laser laser engraving device includes a fixed bracket with a fixed plate. A horizontal drive mechanism is fixed to one side of the fixed plate, and a guide rail is fixed to the other side. A laser cutter, which is slidably mounted on the guide rail and is connected to the horizontal drive mechanism, is driven by the laser cutter. Each end of the fixed bracket has a laser whose light emission direction is towards the laser cutter. Each laser includes a base with a light shield fixed on it. Two staggered laser light sources are fixed inside the light shield. A first beam combiner and a second reflector are arranged along the light emission path of each laser light source. The second reflector is fixed in the optical path of a single laser beam, and the first beam combiner is fixed in the optical path of multiple laser beams. Two first reflectors arranged at a 90-degree angle are fixed at one end inside the light shield. A laser emitter is arranged on one side of the base, and the laser emitter is fixed in the reflected light path of one of the first reflectors. The other first reflector is fixed in the reflected light path of the second reflector.

[0008] Furthermore, heat dissipation grooves are formed at both the upper and lower ends of the base, and a cooling fan is fixed on one side of the base.

[0009] Furthermore, the horizontal drive mechanism includes a closed transmission belt fixed to the side wall of the fixed upright plate, a horizontal moving stepper motor that is connected to the closed transmission belt is fixed to one end of the fixed upright plate, and a drag chain connected to the laser cutter is fixed on the fixed bracket.

[0010] Furthermore, the laser cutter includes a housing, a third reflector fixed at a 45-degree angle to the upper end of the housing, a second beam combiner disposed below the third reflector, the third reflector and the second beam combiner forming a 90-degree angle, a vertically fixed screw fixed to one side of the housing, a vertically moving stepper motor drivenly connected to the upper end of the vertical screw, a sliding seat slidably mounted on the vertical screw, a laser cutting head located below the second beam combiner fixed to one side of the sliding seat, and a focusing lens fixed inside the upper end of the laser cutting head.

[0011] The beneficial effects of this utility model by adopting the above technical solution are as follows: by setting multiple laser light sources inside the light shield, multiple laser beams are combined together using a reflector and a beam combiner to form a set of laser beams emitted from the laser, thereby increasing the energy of the laser beam; after the laser beams of two lasers are combined, the working of the vertical moving stepper motor can be controlled to drive the focusing lens to adjust its height from the beam combiner to achieve automatic adjustment of the focal length, which is convenient for processing materials of different thicknesses. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a perspective view of the present invention;

[0014] Figure 2 This is the front view of this utility model;

[0015] Figure 3 This is a top view of the present invention;

[0016] Figure 4 This is a three-dimensional view of the laser cutting head of this utility model;

[0017] Figure 5 This is a front view of the laser cutting head of this utility model;

[0018] Figure 6 This is a perspective view of the laser cutting head of this utility model;

[0019] Figure 7 This is a three-dimensional view of the laser of this utility model;

[0020] Figure 8 This is a cross-sectional view of the laser of this utility model.

[0021] The annotations in the attached figures are explained as follows:

[0022] 1. Fixed bracket; 2. Horizontal drive mechanism; 21. Horizontal stepper motor; 22. Closed transmission belt; 23. Cable chain; 3. Fixed upright plate; 4. Guide rail; 5. Laser cutter; 51. Housing; 52. Third reflector; 53. Second beam combiner; 54. Vertical screw; 55. Laser cutting head; 56. Sliding seat; 57. Vertical stepper motor; 58. Focusing lens; 6. Laser; 61. Base; 62. Cooling fan; 63. Light shield; 64. Laser source; 65. First beam combiner; 66. Second reflector; 67. First reflector; 68. Laser emitter; 69. Heat sink. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-8As shown, a dual-laser laser engraving device includes a fixed bracket 1, a fixed plate 3 fixed to the fixed bracket 1, a horizontal drive mechanism 2 fixed to one side of the fixed plate 3, and a guide rail 4 fixed to the other side of the fixed plate 3. A laser cutter 5, which is driven and connected to the horizontal drive mechanism 2, is slidably mounted on the guide rail 4. The horizontal drive mechanism 2 can drive the laser cutter 5 to move horizontally along the guide rail 4 to adjust the cutting position. A laser 6 with its light output direction facing the laser cutter 5 is fixed at each end of the fixed bracket 1. The laser 6 generates a laser beam. The two sets of lasers 6 can increase the laser power and compensate for the power change caused by the movement of the laser cutter 5. The laser 6 is separate from the laser cutter 5, reducing the size and facilitating installation. Furthermore, the horizontal drive mechanism 2 is less stressed when the laser cutter 5 moves, allowing for faster movement. The laser 6 includes a base 61, on which a light shield 63 is fixed. Two staggered rows of laser light sources 64 are fixed. A first beam combiner 65 and a second reflector 66 are arranged on the light output path of the laser light sources 64. The second reflector 66 is fixed on the optical path of a single laser beam, and the first beam combiner 65 is fixed on the optical path of multiple laser beams. Two first reflectors 67 arranged at a 90-degree angle are fixed at one end inside the light shield 63. A laser emitter 68 is arranged on one side of the base 61. The laser emitter 68 is fixed on the reflected optical path of one of the first reflectors 67, and the other first reflector 67 is fixed on the reflected optical path of the second reflector 66. The laser is reflected 180° by the second reflector 66 and the first reflector 67 and then emitted onto the laser cutter 5. By setting two rows of laser light sources 64, the first beam combiner 65 and the second reflector 66, multiple laser beams can be combined into one laser beam, increasing the power of the emitted laser. At the same time, the size of the laser 6 can be reduced through this structural design.

[0025] In this embodiment, heat dissipation grooves 69 are formed at both the upper and lower ends of the base 61, and a heat dissipation fan 62 is fixed on one side of the base 61. The heat dissipation fan 62 and the heat dissipation grooves 69 facilitate heat dissipation of the laser 6.

[0026] In this embodiment, the horizontal drive mechanism 2 includes a closed transmission belt 22 fixed on the side wall of the fixed upright plate 3. One end of the fixed upright plate 3 is fixed with a horizontal moving stepper motor 21 that is connected to the closed transmission belt 22. A drag chain 23 connected to the laser cutter 5 is fixed on the fixed bracket 1. The laser cutter 5 can be moved by driving the closed transmission belt 22 to rotate through the horizontal moving stepper motor 21. The stability of the laser cutter 5 when it moves can be improved by the drag chain 23.

[0027] In this embodiment, the laser cutter 5 includes a housing 51. A third reflector 52, installed at a 45-degree angle, is fixed to the upper end of the housing 51. A second beam combiner 53 is disposed below the third reflector 52, with the third reflector 52 and the second beam combiner 53 forming a 90-degree angle. An entrance hole is formed on the housing 51 corresponding to the positions of the third reflector 52 and the second beam combiner 53. The lasers emitted by the two lasers 6 are respectively reflected and refracted onto the third reflector 52 and the second beam combiner 53, causing the two laser beams to merge together. The energy of the two laser beams is complementary, thereby reducing the power of the laser cutter 5 when it moves horizontally. To ensure stable output laser power, a vertical screw 54 is fixed to one side of the outer casing 51. A vertical stepper motor 57 is connected to the upper end of the vertical screw 54. A sliding seat 56 is slidably mounted on the vertical screw 54. A laser cutting head 55 located below the second beam combiner 53 is fixed to one side of the sliding seat 56. A focusing lens 58 is fixed inside the upper end of the laser cutting head 55. The vertical screw 54 is rotated by the vertical stepper motor 57, which can move the laser cutting head 55 up and down to adjust the position of the focusing lens 58 and thus adjust the focal length, facilitating the processing of materials of different thicknesses.

[0028] The working principle of this utility model is as follows: When in use, after the laser source 64 emits laser light, the laser beams are gradually merged by the first beam combiner 65 and the second reflector 66, so that the power of the laser beam is enhanced by the merging of multiple laser beams. The merged laser beam is reflected by the first reflector 67 and then emitted from the laser emitter 68. The laser beams emitted from the two lasers 6 on the left and right sides of the fixed bracket 1 are respectively injected into the laser cutter 5 from both sides. The laser beam on the left enters from the B light inlet and is reflected by the second beam combiner 53 and then onto the focusing lens 58. The laser beam on the right enters from the A light inlet and is reflected by the third reflector 52 and then passes through the focusing lens 58. The two laser beams are combined into one. The height of the laser cutting head 55 is adjusted by controlling the vertical movement stepper motor 57, thereby adjusting the height of the focusing lens 58 to achieve the adjustment of the focal length, so as to meet the processing requirements of materials of different thicknesses.

[0029] Components not described in detail in this article are existing technologies.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-laser laser-engraving apparatus, characterized by: The utility model provides a laser cutting device, including fixed support (1), fixed support (1) is fixed with fixed vertical board (3), one side of fixed vertical board (3) is fixed with horizontal drive mechanism (2), the other side of fixed vertical board (3) is fixed with guide rail (4), the sliding installation of guide rail (4) is with the transmission connection of laser cutting device (5) of horizontal drive mechanism (2), the both ends of fixed support (1) are each fixed with the laser (6) of the light direction of one emission towards laser cutting device (5), the laser (6) includes pedestal (61), the fixed support (63) of shading cover (63) is fixed on pedestal (61), two columns staggered setting laser light source (64) are fixed in shading cover (63), the first beam combiner (65) and second reflector (66) are arranged on the light path of laser light source (64), the second reflector (66) is fixed on the light path of single laser beam, the first beam combiner (65) is fixed on the light path of multiple laser beams, one end of shading cover (63) is fixed with two first reflector (67) of ninety degrees angle setting, the laser light emitter (68) of one side is provided with laser (68) in pedestal (61), the reflection light path of one of first reflector (67) is fixed in laser light emitter (68), and the reflection light path of second reflector (66) is fixed in another first reflector (67).

2. A dual laser laser-engraving apparatus according to claim 1, characterized in that: The upper and lower ends of the pedestal (61) are formed with heat dissipation grooves (69), and the one side of the pedestal (61) is fixed with a heat dissipation fan (62).

3. A dual laser laser-engraving apparatus according to claim 1 or 2, characterized in that: The horizontal drive mechanism (2) includes a closed transmission belt (22) fixed on the side wall of the fixed vertical board (3), one end of the fixed vertical board (3) is fixed with a horizontal movement stepping motor (21) in transmission connection with the closed transmission belt (22), and the fixed support (1) is fixed with a drag chain (23) connected with the laser cutting device (5).

4. A dual laser laser-engraving apparatus according to claim 3, wherein: The laser cutting device (5) includes an outer shell (51), a third reflector (52) is installed at an angle of 45 degrees on the upper end of the outer shell (51), a second beam combiner (53) is arranged below the third reflector (52), the third reflector (52) and the second beam combiner (53) are at an angle of 90 degrees, a vertical screw (54) is fixed vertically on one side of the outer shell (51), a vertical movement stepping motor (57) is in transmission connection with the upper end of the vertical screw (54), a sliding seat (56) is slidingly installed on the vertical screw (54), a laser cutting head (55) is fixed on one side of the sliding seat (56) below the second beam combiner (53), and a focusing mirror (58) is fixed inside the upper end of the laser cutting head (55).

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