Laser marking machine

Abstract

The utility model belongs to the technical field of laser marking processing, and provides a laser marking machine which comprises a galvanometer light path, a lifting mechanism, a carrier, an X linear motor module and a Y linear motor module. The X linear motor module is mounted on the fixed table; the Y linear motor module is installed at the moving end of the X linear motor module, and the carrier is installed at the moving end of the Y linear motor module. According to the laser marking machine, the two micro motors and the X-axis linear motor and the Y-axis linear motor in the galvanometer are controlled at the same time, so that the path of a marking pattern is completed through combined movement of the galvanometer and the X-axis linear motor and the Y-axis linear motor, and therefore the large-sheet marking range and the high-precision marking quality are obtained. When a pattern exceeding the view field range of the field lens is marked, the marked pattern does not need to be segmented, and all the patterns are marked in one-time processing. Not only can marking time be saved, but also splicing seams generated during splicing of actual marking patterns after pattern segmentation do not exist, and precision errors of the splicing seams do not exist.

Description

Technical Field

[0001] The utility model belongs to the technical field of laser marking processing, and specifically relates to a laser marking machine. Background Art

[0002] In the field of laser marking processing technology, after a large-diameter laser beam is focused by a field lens, a laser light spot with high energy density and small diameter will be formed on the working plane of the field lens. After the laser light spot is projected onto the surface of a metal or non-metal material, a spot will be burned at the location where it is located. The material at this spot is melted at high temperature by the high-energy laser beam. Since the laser is focused by the field lens after being reflected by the reflectors installed on the two micro motors in the galvanometer, the path of the laser beam can be changed by controlling the rotation angle of the two micro motors. When the beam path changes, the position of the laser light spot on the surface of the processed material also changes. By reasonably controlling the rotation angle of the two micro motors in the galvanometer, a variety of marking patterns that meet the actual processing needs of users can be obtained.

[0003] The common laser marking machines on the market are mostly not closed in structure, that is, the marking space and the atmosphere are not isolated, and dust and oil stains can easily contaminate the marking materials.

[0004] In addition, the existing laser marking machines mostly use fixed marking, that is, they can only control the two micro motors in the galvanometer. Due to the structural limitations of the field lens, the marking range of the laser beam is limited to a certain size after it is focused by the field lens. When the user's actual marking processing pattern is larger than the marking range of the field lens, it is necessary to use a method of splitting the marking pattern to split the marking processing pattern into the range that the field lens can process. After processing one area, the material is moved manually or automatically to continue processing another area, and the material is moved multiple times until all the split processing patterns are marked. This method of splicing the marking pattern using split patterns reduces the accuracy of the marking, and there will be large dimensional errors at the splicing points, resulting in poor marking quality and low processing efficiency, and it is impossible to process high-precision marking patterns. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a laser marking machine with a large image processing range. When marking a pattern that exceeds the field of view of the field mirror, there is no need to split the marking pattern, and all patterns can be marked in one processing.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a laser marking machine, including a galvanometer optical path, a lifting mechanism, a carrier, an X linear motor module, and a Y linear motor module;

[0007] The lifting mechanism comprises an optical path installation platform, a support shaft, a fixed platform, a lifting motor, a screw rod, a screw rod nut, and a motor base. The fixed platform is provided with a through hole adapted to the support shaft, the support shaft is inserted into the through hole, the two ends of the support shaft are respectively fixed to the optical path installation platform and the motor base, the galvanometer optical path is installed on the optical path installation platform, the lifting motor is installed on the motor base, the screw rod nut is fixed to the fixed platform, the screw rod nut is threadedly connected to the screw rod, the screw rod is parallel to the support shaft, and the power output end of the lifting motor is coaxially fixed to the screw rod;

[0008] The X linear motor module is mounted on the fixed platform;

[0009] The Y linear motor module is mounted on the moving end of the X linear motor module, and the carrier is mounted on the moving end of the Y linear motor module.

[0010] Preferably, the laser marking machine further comprises a shell, the galvanometer optical path, the lifting mechanism, the carrier, the X linear motor module, and the Y linear motor module are all arranged inside the shell, and the fixed platform is fixed inside the shell.

[0011] Preferably, the housing comprises a lower hood and an upper hood, and the upper hood is installed above the lower hood.

[0012] Preferably, a lower hood door and a lower hood window are provided on the side wall of the lower hood, and a supporting foot is fixed to the bottom of the lower hood.

[0013] Preferably, a marble platform is fixed in the lower hood, and the fixing platform is fixedly installed on the marble platform.

[0014] Preferably, an upper hood door and an upper hood window are provided on the upper hood side wall, and a display assembly is installed on the upper hood side wall.

[0015] Preferably, the carrier is a vacuum suction cup assembly.

[0016] Preferably, the carrier includes a suction cup platform, a suction cup cover, a suction cup mounting plate, a pneumatic joint, and a sealing strip. The suction cup cover is installed on the suction cup mounting plate, and the suction cup mounting plate is installed on the moving end of the Y linear motor module. The suction cup cover presses the sealing strip into the suction cup platform, and the pneumatic joint is arranged on the side wall of the suction cup platform.

[0017] Preferably, the carrier further includes a sealing ring, the suction cup cover and the suction cup platform are fixed by screws, and the sealing ring is arranged at the screw hole of the suction cup cover.

[0018] Preferably, the laser marking machine further comprises a laser, a host, a control card, and an electrical board, wherein the control card is mounted on the electrical board.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model provides a laser marking machine, which simultaneously controls the two micro motors in the galvanometer and the XY linear motor, so that the path of the marking pattern is completed by the joint movement of the galvanometer and the XY axis linear motor module, thereby obtaining a large-scale marking range and high-precision marking quality. When marking a pattern that exceeds the field of view of the field mirror, there is no need to split the marking pattern, and all patterns are marked in one processing. Not only can it save marking time, but there is no seam generated when the actual marking pattern is spliced ​​after the pattern is split, and there is no precision error of the seam, so that the precision of the entire marking pattern is guaranteed.

[0021] 2. The utility model provides a laser marking machine, the lifting mechanism realizes the automatic adjustment function of the field lens marking height. Compared with the hand wheel adjustment method in the traditional marking machine, this adjustment method is simpler, more convenient and faster, and the working distance adjustment of the field lens is more precise, which can ensure more accurate focusing. Reflected on the marking material, the smaller the diameter of the laser spot, the higher the energy density of the laser spot.

[0022] 3. The utility model provides a laser marking machine, which can absorb metal and non-metal sheet marking materials with uneven surfaces after cutting by setting a vacuum suction cup assembly, so that the marking materials are closely attached to the working surface of the suction cup platform, eliminating the problem of reduced marking pattern accuracy due to the uneven surface of the marking material. This method of fixing the marking material is more suitable for high-precision marking applications.

[0023] 4. The laser marking machine provided by the utility model can provide a closed marking environment by setting a shell, effectively blocking the harmful gas generated by marking from spreading to the surroundings, preventing humid air from entering the marking area, and avoiding oil splashing onto the marking material, thereby providing good processing conditions for laser marking of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a laser marking machine provided in an embodiment of the utility model;

[0025] Figure 2 A schematic diagram of the three-dimensional structure of an upper machine cover and related parts of a laser marking machine provided in an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the three-dimensional structure of a lower hood of a laser marking machine and its related parts provided in an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of a marble platform and related parts of a laser marking machine provided in an embodiment of the utility model;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of a galvanometer optical path of a laser marking machine provided in an embodiment of the utility model;

[0029] Figure 6 A schematic diagram of the three-dimensional structure of a lifting mechanism of a laser marking machine provided in an embodiment of the utility model;

[0030] Figure 7 A schematic diagram of the three-dimensional structure of an XY linear motor module and a carrier of a laser marking machine provided in an embodiment of the utility model;

[0031] Figure 8 A schematic diagram of the exploded structure of an XY linear motor module and a carrier of a laser marking machine provided by an embodiment of the utility model;

[0032] Fig. 9 A schematic diagram of the exploded structure of a carrier of a laser marking machine provided in an embodiment of the utility model;

[0033] Fig.10 A schematic diagram of the three-dimensional structure of the interior of a lower hood of a laser marking machine provided in an embodiment of the utility model;

[0034] Fig.11 A schematic diagram of the back structure of a control card of a laser marking machine provided in an embodiment of the utility model.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. Galvanometer optical path;

[0037] 101, galvanometer; 102, field lens; 103, optical path mounting plate; 104, laser head; 105, fixing clamp; 106, red point light source;

[0038] 2. Lifting mechanism;

[0039] 201, optical path installation platform; 202, support shaft; 203, fixed platform; 204, lifting motor; 205, lead screw; 206, lead screw nut; 207, motor base;

[0040] 3. Vehicle;

[0041] 301, suction cup platform; 302, suction cup cover; 303, suction cup mounting plate; 304, pneumatic joint; 305, sealing strip; 306, sealing ring;

[0042] 4. X linear motor module;

[0043] 401, X coil; 402, X guide rail; 403, X magnetic rail; 404, X hard limit; 405, X guide rail pad; 406, X coil plate; 407, X slider; 408, X grating ruler; 409, X reader; 410, X reader board; 411, X limit; 412, X limit baffle; 413, X slide table;

[0044] 5. Y linear motor module;

[0045] 514, Y guide rail pad; 515, Y magnetic rail; 516, Y hard limit; 517, Y slide; 518, Y coil; 519, Y coil plate; 520, Y limit baffle; 521, Y reader board; 522, Y reader; 523, Y slider; 524, Y grating ruler; 525, Y guide rail; 526, Y limit;

[0046] 6. Lower hood;

[0047] 601, lower hood door; 602, lower hood window; 603, support foot; 604, marble platform;

[0048] 7. Upper hood;

[0049] 701, upper hood door; 702, upper hood window;

[0050] 8. Laser; 9. Host; 10. Control card; 11. Electrical board; 12. Display assembly; 13. Warning light; 14. Electrical button. DETAILED DESCRIPTION

[0051] The present invention will be further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0052] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrally formed structure. For ordinary technicians in this field, the specific meanings of such terms in this patent can be understood according to specific circumstances.

[0053] like Figure 3-4 As shown, this embodiment provides a laser marking machine, including a galvanometer optical path 1, a lifting mechanism 2, a carrier 3, an X linear motor module 4, and a Y linear motor module 5.

[0054] like Figure 6As shown, the lifting mechanism 2 includes an optical path installation platform 201, a support shaft 202, a fixed platform 203, a lifting motor 204, a screw rod 205, a screw rod nut 206, and a motor base 207. The fixed platform 203 is provided with a through hole adapted to the support shaft 202, the support shaft 202 is inserted in the through hole, the two ends of the support shaft 202 are respectively fixed to the optical path installation platform 201 and the motor base 207, the galvanometer optical path 1 is installed on the optical path installation platform 201, the lifting motor 204 is installed on the motor base 207, the screw rod nut 206 is fixed to the fixed platform 203, the screw rod nut 206 is threadedly connected to the screw rod 205, the screw rod 205 is parallel to the support shaft 202, the power output end of the lifting motor 204 is coaxially fixed with the bottom end of the screw rod 205, and the top end of the screw rod 205 is rotatably connected to the optical path installation platform 201.

[0055] The principle is the same as that of the screw transmission mechanism. When the screw 205 rotates, the screw nut 206 and the screw 205 are relatively displaced. Since the screw nut 206 is fixed to the fixed platform 203, the screw 205 can be moved up and down. Therefore, the screw 205 can be driven to rotate by the lifting motor 204, that is, the screw 205 can be driven to move up and down, thereby driving the motor base 207, the optical path mounting platform 201, and the galvanometer optical path 1 to move up and down.

[0056] The X linear motor module 4 is mounted on the fixed platform 203. The Y linear motor module 5 is mounted on the moving end of the X linear motor module 4, and the carrier 3 is mounted on the moving end of the Y linear motor module 5.

[0057] The X linear motor module 4 is used to drive the Y linear motor module 5 to move along the X direction, and the Y linear motor module 5 is used to drive the carrier 3 to move along the Y direction, thereby controlling the displacement of the carrier 3 in the XY directions. The carrier 3 is used to place the marking material.

[0058] Based on the above structure, the laser marking machine provided in this embodiment controls the two micro motors in the galvanometer and the XY axis linear motor at the same time, so that the path of the marking pattern is completed by the joint movement of the galvanometer and the XY axis linear motor module, thereby obtaining a large-scale marking range and high-precision marking quality. When marking a pattern that exceeds the field of view of the field mirror, it is not necessary to split the marking pattern, and all patterns are marked in one processing. The specific process is as follows: when the micro motor in the galvanometer moves, the XY linear motor module with the marking material placed under the field mirror also moves with the galvanometer. For the same marking pattern, the time spent using the fixed marking method is more than the time spent using the joint movement of the galvanometer and the XY linear motor module. The path points in the marking pattern are sent to the galvanometer and the XY axis linear motor at the same time according to specific rules, and the "unlimited field of view" marking method can be realized. Not only can it save marking time, but there is no seam generated when the actual marking pattern is spliced ​​after the pattern is segmented, and there is no precision error of the seam, so that the precision of the entire marking pattern is guaranteed.

[0059] Secondly, the lifting mechanism 2 can realize the automatic adjustment function of the field lens marking height. Compared with the hand wheel adjustment method in the traditional marking machine, this adjustment method is simpler, more convenient and faster, and the working distance adjustment of the field lens is more precise, which can ensure more accurate focusing. Reflected on the marking material, the smaller the diameter of the laser spot, the higher the energy density of the laser spot.

[0060] The laser marking machine provided in this embodiment further includes a shell, the galvanometer optical path 1, the lifting mechanism 2, the carrier 3, the X linear motor module 4, and the Y linear motor module 5 are all arranged inside the shell, and the fixed platform 203 is fixed inside the shell.

[0061] By providing the shell, a closed marking environment can be provided, which can effectively block the harmful gases generated by marking from spreading to the surroundings, prevent humid air from entering the marking area, and avoid oil stains from splashing onto the marking material, thereby providing good processing conditions for material laser marking.

[0062] Specifically, Figure 1-3 As shown, the shell may include a lower hood 6 and an upper hood 7 , and the upper hood 7 is installed above the lower hood 6 .

[0063] A lower hood door 601 and a lower hood window 602 are provided on the side wall of the lower hood 6 , and a supporting foot 603 is fixed to the bottom of the lower hood 6 .

[0064] A marble platform 604 is fixed in the lower hood 6, and the fixing platform 203 is fixedly mounted on the marble platform 604. Specifically, the marble platform 604 is placed flat in the square groove of the lower hood 6 and fixed to the frame by four screws. That is, the working platform adopts a marble platform with high flatness and high damping, which effectively ensures the installation accuracy of each component.

[0065] The upper hood door 701 and the upper hood window 702 are provided on the side wall of the upper hood 7, and a display assembly 12 is installed on the side wall of the upper hood 7. A warning light 13 and an electrical button 14 may be provided on the upper hood 7. The display assembly 12 may include a display stand, a display, a mouse, a keyboard, etc. The keyboard and the mouse are placed at the bottom of the display stand, and the display is embedded in the display stand, and the display stand is installed on the side of the upper hood 7 by screws.

[0066] In this embodiment, the carrier 3 is a vacuum suction cup assembly. The vacuum suction cup can absorb the metal and non-metal sheet marking materials with uneven surfaces after cutting, so that the marking materials are closely attached to the working surface of the suction cup platform, eliminating the problem of reduced marking pattern accuracy due to the uneven surface of the marking material. This method of fixing the marking material is more suitable for high-precision marking applications.

[0067] Specifically, Fig. 9 As shown, the carrier 3 may include a suction cup platform 301, a suction cup cover 302, a suction cup mounting plate 303, a pneumatic joint 304, and a sealing strip 305. The suction cup cover 302 is installed on the suction cup mounting plate 303, and the suction cup mounting plate 303 is installed on the moving end of the Y linear motor module 5. The suction cup cover 302 presses the sealing strip 305 into the suction cup platform 301, and the pneumatic joint 304 is arranged on the side wall of the suction cup platform 301.

[0068] The carrier 3 also includes a sealing ring 306. The suction cup cover 302 is fixed to the suction cup platform 301 by screws, and the sealing ring 306 is arranged at the screw hole of the suction cup cover 302. The suction cup cover 302 presses the sealing strip 305 and the sealing ring 306 to the bottom surface of the suction cup platform 301 by screws to prevent air from leaking from the screw holes. The marking material is placed on the surface of the suction cup platform 301, and the pneumatic joint 304 is connected to the vacuum device. The marking material is firmly sucked on the surface of the suction cup platform 301. By controlling the on and off of the vacuum, the adsorption and blowing of the marking material can be achieved.

[0069] The laser marking machine provided in this embodiment also includes a laser 8, a host 9, a control card 10, and an electrical board 11. Figure 10-11As shown, the electrical board 11 is installed in the lower cover 6 , the laser 8 and the host 9 are respectively placed on the mounting platforms in the lower cover 6 , and the control card 10 is fixed on the electrical board 11 .

[0070] The control principle of the control card 10 is as follows: the XY linear motor module and the galvanometer are both controlled by the control card, and the lifting motor is also controlled by the control card. In addition, interfaces for limit and user input and output are provided. The user establishes communication with the control through the control card network port to read and edit the parameters of each motor. The control card receives the control command sent by the marking software of the host computer, and then sends the control command to the XY linear motor and the galvanometer at the same time according to specific rules. When the two micro motors in the galvanometer execute the running trajectory movement of the marking pattern, the XY linear motor module also participates in this trajectory movement, so that a large range of marking patterns do not require a pattern segmentation function, and the pattern seam elimination function of manually moving the marking material in fixed marking is also realized, thereby realizing a marking method with unlimited field of view.

[0071] In this embodiment, the galvanometer optical path 1 is a prior art. For example, the galvanometer optical path 1 may include a galvanometer 101, a field lens 102, an optical path mounting plate 103, a laser head 104, a fixing clip 105, and a red point light source 106. Figure 5 As shown, the field lens 102 is mounted on the galvanometer 101 through a threaded interface, the galvanometer 101 is fixed together with the optical path mounting plate 103 through a machined part, the laser head 104 is mounted in the round hole of the fixing clamp 105, the fixing clamp 105 is mounted on the optical path mounting plate 103, the red point light source 106 is mounted on the light source bracket, and the light source bracket is fixed on the optical path mounting plate 103. The laser emitted by the laser head 104 is reflected by the two reflectors in the field lens 102, and the reflected light beam passes through the focusing lens in the field lens 102 and finally reaches the surface of the marking material, and the surface of the marking material is burned with marks. By reasonably controlling the rotation angle of the micro motor equipped with the reflector in the field lens 102, a marking pattern that meets actual needs can be obtained.

[0072] The X linear motor module 4 is a prior art, for example, Figure 7-8As shown, in the X linear motor module 4, the X guide rail pad 405, the X hard limit 404, the X magnetic rail 403 and the X limit 411 are all installed on the surface of the marble platform 604, the two groups of X guide rails 402 are installed on the X guide rail pad 405, the X grating ruler 408 is attached to the side of the X guide rail pad 405, the X coil 401 and the X coil plate 406 are fixed together, the X coil plate 406 is installed on the bottom surface of the X slide 413, the X slide 413 is horizontally installed on the X slider 407 of the two groups of X guide rails 402, the X limit baffle 412 is fixed on the side of the X slide 413, the X head reader board 410 is installed on the side of the X slide 413, and the X head reader 409 is connected to the X head reader board 410.

[0073] The Y linear motor module 5 is a prior art, for example, Figure 7-8 As shown, in the Y linear motor module 5, the Y guide rail pad 514, the Y hard limit 516, the Y magnetic rail 515 and the Y limit 526 are all installed on the X slide 413, the two groups of Y guide rails 525 are installed on the Y guide rail pad 514, the Y grating scale 524 is attached to the side of the Y guide rail pad 514, the Y coil 518 and the Y coil plate 519 are fixed together, the Y coil plate 519 is installed on the bottom surface of the Y slide 517, the Y slide 517 is horizontally installed on the Y slider 523 of the two groups of Y guide rails 525, the Y limit baffle 520 is fixed on the side of the Y slide 517, the Y head reader plate 521 is installed on the side of the Y slide 517, and the Y head reader 522 is connected to the Y head reader plate 521.

[0074] In summary, the method for using the laser marking machine provided in this embodiment may include the following steps:

[0075] S1. Turn on the equipment and adjust the equipment to the processing state;

[0076] S2. Place the marking material on the working surface of the vacuum chuck and connect the vacuum gas to the vacuum chuck;

[0077] S3. Draw the pattern to be marked in the marking software of the host computer or import the two-dimensional vector pattern drawn by other CAD software;

[0078] S4. Preprocessing the pattern to be marked in the marking software of the host computer, such as sorting, decomposing, and combining the patterns;

[0079] S5. Adjust the motion parameters of the galvanometer and the XY linear motor module in the marking software of the host computer, and adjust the light output parameters of the laser;

[0080] S6. Execute the marking command in the host computer;

[0081] S7. The marking material processing is completed.

[0082] The mechanisms, components and parts not specifically described in the present invention are all existing structures in the prior art and can be directly purchased from the market.

[0083] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0084] The above is only a preferred embodiment of the utility model, and is not intended to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A laser marking machine, characterized in that: It comprises a galvanometer optical path (1), a lifting mechanism (2), a carrier (3), an X linear motor module (4), and a Y linear motor module (5); The lifting mechanism (2) comprises an optical path installation platform (201), a support shaft (202), a fixed platform (203), a lifting motor (204), a screw rod (205), a screw rod nut (206), and a motor base (207); the fixed platform (203) is provided with a through hole adapted to the support shaft (202); the support shaft (202) is inserted into the through hole; two ends of the support shaft (202) are respectively connected to the optical path installation platform (201) and the motor base ( 207), the galvanometer optical path (1) is installed on the optical path installation platform (201), the lifting motor (204) is installed on the motor base (207), the screw nut (206) is fixed to the fixed platform (203), the screw nut (206) is threadedly connected to the screw (205), the screw (205) is parallel to the support shaft (202), and the power output end of the lifting motor (204) is coaxially fixed with the screw (205); The X linear motor module (4) is mounted on the fixed platform (203); The Y linear motor module (5) is mounted on the moving end of the X linear motor module (4), and the carrier (3) is mounted on the moving end of the Y linear motor module (5).

2. A laser marking machine according to claim 1, characterized in that: The laser marking machine also includes a shell, the galvanometer optical path (1), the lifting mechanism (2), the carrier (3), the X linear motor module (4), and the Y linear motor module (5) are all arranged inside the shell, and the fixed platform (203) is fixed inside the shell.

3. A laser marking machine according to claim 2, characterized in that: The housing comprises a lower hood (6) and an upper hood (7), wherein the upper hood (7) is mounted above the lower hood (6).

4. A laser marking machine according to claim 3, characterized in that: A lower hood door (601) and a lower hood window (602) are provided on the side wall of the lower hood (6), and a supporting footrest (603) is fixed on the bottom of the lower hood (6).

5. The laser marking machine according to claim 3, characterized in that: A marble platform (604) is fixed inside the lower hood (6), and the fixing platform (203) is fixedly mounted on the marble platform (604).

6. The laser marking machine according to claim 3, characterized in that: An upper hood door (701) and an upper hood window (702) are provided on the side wall of the upper hood (7), and a display assembly (12) is installed on the side wall of the upper hood (7).

7. The laser marking machine according to claim 1, characterized in that: The carrier (3) is a vacuum suction cup assembly.

8. A laser marking machine according to claim 7, characterized in that: The carrier (3) comprises a suction cup platform (301), a suction cup cover (302), a suction cup mounting plate (303), a pneumatic joint (304), and a sealing strip (305); the suction cup cover (302) is mounted on the suction cup mounting plate (303); the suction cup mounting plate (303) is mounted on the moving end of the Y linear motor module (5); the suction cup cover (302) presses the sealing strip (305) into the suction cup platform (301); and the pneumatic joint (304) is arranged on the side wall of the suction cup platform (301).

9. A laser marking machine according to claim 8, characterized in that: The carrier (3) further comprises a sealing ring (306), the suction cup cover (302) and the suction cup platform (301) are fixed by means of screws, and the sealing ring (306) is arranged at the screw hole of the suction cup cover (302).

10. The laser marking machine according to claim 1, characterized in that: The laser marking machine also includes a laser (8), a host (9), a control card (10), and an electrical board (11), wherein the control card (10) is mounted on the electrical board (11).

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