A laser cutting apparatus

Abstract

The application discloses a kind of laser cutting equipment, it is related to laser cutting technical field, including base and fixed installation in the workbench of base side wall, support plate, the support plate is respectively fixed installation in the top of base, the top of support plate is installed front and back drive component, the front and back drive component includes first guide rail, first slider, sliding plate, fixed plate and first servo motor, wherein: the fixed plate is fixedly installed in the top of support plate, the fixed plate is slidably installed sliding plate above, the top of sliding plate is connected the output end of first servo motor, the top of sliding plate is fixedly installed with crossbeam, the first guide rail is fixedly installed in the top of support plate, the first guide rail is slidably installed first slider, by being provided with moisture measuring unit and wood moisture meter in the area of feeding, dry wood board can be selected before cutting, to avoid waste wood board.

Description

Technical Field

[0001] This invention relates to the field of laser cutting technology, specifically to a laser cutting device. Background Technology

[0002] Laser cutting refers to the process of using a high-power-density laser beam to irradiate the material being cut, causing the material to be quickly heated to its vaporization temperature and evaporate to form a hole. As the beam moves across the material, the hole continuously forms a very narrow kerf (such as about 0.1 mm), thus completing the cutting of the material.

[0003] Laser cutting uses an invisible laser beam instead of a traditional mechanical blade, offering advantages such as high precision, fast cutting speed, no limitation on cutting patterns, automatic layout to save materials, smooth cuts, and low processing costs. It will gradually improve or replace traditional metal cutting equipment. The mechanical parts of the laser head do not contact the workpiece, so it will not scratch the workpiece surface during operation. Laser cutting is fast, produces smooth and flat cuts, generally requires no subsequent processing, has high processing precision, good repeatability, and does not damage the material surface.

[0004] With the continuous upgrading of laser cutting equipment and the increasing sophistication of cutting technology, laser cutting is being used more and more widely in the cutting of display panels. Existing laser cutting equipment generally includes a work platform and a laser cutting device mounted on top of the work platform. The laser cutting device is controlled by a controller, and includes a moving mechanism and a laser source (laser head). However, for corroded or damaged wood panels, the laser cutting device cannot determine which corroded surfaces cannot be cut, affecting cutting efficiency. This phenomenon has become a problem that urgently needs to be solved by those in the field. Summary of the Invention

[0005] The purpose of this invention is to provide a laser cutting device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a laser cutting device, including a base and a worktable fixedly installed on the side wall of the base;

[0007] Support plates, which are respectively fixedly installed on the top of the base;

[0008] A front-to-back drive assembly is mounted on the top of the support plate. The front-to-back drive assembly includes a first guide rail, a first slider, a sliding plate, a fixed plate, and a first servo motor, wherein:

[0009] The fixing plate is fixedly installed on the top of the support plate, and a sliding plate is slidably installed above the fixing plate. The top of the sliding plate is connected to the output end of the first servo motor.

[0010] A crossbeam is fixedly installed on the top of the sliding plate, the first guide rail is fixedly installed on the top of the support plate, and the first slider is slidably installed on the first guide rail.

[0011] The present invention further illustrates that a towing frame is fixedly installed on the side wall of the crossbeam, and a first cable chain is detachably connected to the towing frame. A left and right drive assembly is installed on the top of the crossbeam. The left and right drive assembly includes a second guide rail, a sliding frame, an electrical box, and a second servo motor, wherein:

[0012] The second guide rail is fixedly installed on the top of the crossbeam, the sliding frame is slidably installed above the second guide rail, the electrical box is fixedly installed on the top of the sliding frame, and the second servo motor is installed inside the electrical box;

[0013] A guide rail protective cover is installed above the crossbeam;

[0014] The present invention further illustrates that an optical cable box is fixedly installed on the back of the electrical box, a second cable chain is connected to the top of the optical cable box, a cutting head is fixedly connected to the other end of the second cable chain, and an ultrasonic wood detector is fixedly installed on the bottom right side of the cutting head.

[0015] A connecting plate is fixedly installed on the side wall of the cutting head, a second slider is fixedly connected to the back of the connecting plate, the second slider is slidably connected to a fourth guide rail, and a main board is fixedly installed on the side wall of the fourth guide rail.

[0016] The present invention further illustrates that a lead screw support is fixedly installed at the front of the main board, a lead screw is rotatably connected to the top of the lead screw support, and a lead screw nut is slidably installed on the lead screw;

[0017] A motor mount is fixedly installed at the front of the motherboard, and a first motor is fixedly connected to the top of the motor mount. The output end of the first motor is connected to a lead screw.

[0018] The present invention further illustrates that a second connecting rod is fixedly installed at the bottom of the crossbeam, a second motor is fixedly installed at one end of the second connecting rod, and the output end of the second motor is connected through the second connecting rod and simultaneously fixedly connected to a fan;

[0019] The present invention further illustrates that a support frame is fixedly installed on the side wall of the workbench, an electric telescopic rod is fixedly connected to the top of the support frame, a third connecting rod is fixedly connected to the push rod of the electric telescopic rod, and a wood moisture meter is fixedly installed at the top of the third connecting rod.

[0020] The present invention further describes that three sets of mounting plates are fixedly installed on the back of the workbench. The side walls of the mounting plates are fixedly connected to bearing seats. A connecting shaft is rotatably connected inside the bearing seats. An active swing arm is connected to the outside of the connecting shaft with a retaining sleeve. A fourth connecting rod is hinged to the other end of the active swing arm. A cylinder piston rod is fixedly connected to the right end of the fourth connecting rod. A cylinder is slidably connected to the other end of the cylinder piston rod and is located inside the cylinder. A cylinder support is fixedly installed at the other end of the cylinder. The side wall of the cylinder support is fixedly installed on the back of the workbench. A connecting rod is also hinged to the active swing arm. The middle part and the right end of the connecting rod are respectively hinged to the middle active swing arm and the right active swing arm.

[0021] The present invention further describes that a support base is fixedly installed on the side wall of the base, a support column is fixedly installed on the top of the support base, a first connecting rod is fixedly installed on the top of the support column, a control box is fixedly installed on the top of the first connecting rod, and a control system is provided inside the control box. The control system includes a drive module, an adjustment module, a marking module, and a positioning module. The drive module includes a front-to-back drive unit, a left-to-right drive unit, and a top-to-bottom drive unit. The adjustment module includes a moisture measurement unit and a cooling unit. The marking module is signal-connected to an ultrasonic wood detector, and the positioning module is signal-connected to a cutting head.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention adopts:

[0023] By installing a moisture measurement unit and a wood moisture meter in the material loading area, dry boards can be selected before cutting, thus avoiding waste of boards;

[0024] By installing a fan on the crossbeam that can move with the crossbeam, the wood board can be cooled by air during laser cutting. This prevents the wood board from curling when the heating temperature is too high, thus avoiding affecting the cutting efficiency.

[0025] By installing an ultrasonic wood detector, the degree of corrosion of the wood board can be judged, avoiding laser cutting onto the corroded surface and improving the efficiency of laser cutting operations. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0028] Figure 2 This is an enlarged schematic diagram of region A of the present invention;

[0029] Figure 3 This is a schematic diagram of the overall rear structure of the present invention;

[0030] Figure 4 This is an enlarged schematic diagram of region B of the present invention;

[0031] Figure 5 This is a schematic diagram of the base structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the internal structure of the upper and lower drive mechanism of the present invention;

[0033] Figure 7 This is a schematic diagram of the upper and lower drive structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the front and rear drive structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the workbench structure of the present invention;

[0036] In the diagram: 1. Base; 2. Support seat; 3. Support column; 4. First connecting rod; 5. Control box; 6. Support plate; 7. First guide rail; 8. First slider; 9. Sliding plate; 10. First servo motor; 11. Towing frame; 12. First cable chain; 13. Crossbeam; 14. Second guide rail; 15. Sliding frame; 16. Electrical box; 17. Guide rail protective cover; 18. Third guide rail; 19. Wooden board; 20. Second servo motor; 21. First motor; 22. Motor base; 23. Lead screw; 24. Lead screw nut; 25. Lead screw support seat; 26. Main board; 27. Fourth guide rail; 28. Second slider; 29. 30. Connecting plate; 31. Cutting head; 32. Second drag chain; 33. Optical cable box; 34. Workbench; 35. Second connecting rod; 36. Fan; 37. Support frame; 38. Electric telescopic rod; 39. Third connecting rod; 40. Wood moisture meter; 41. Laying plate; 42. Bearing seat; 43. Connecting shaft; 44. Active swing arm; 45. Fourth connecting rod; 46. Cylinder piston rod; 47. Cylinder; 48. Cylinder support; 49. Connecting rod; 50. Rotating shaft; 51. Roller seat; 52. Material support ball; 53. Insert plate; 54. Slat; 55. Fixing plate; 56. Ultrasonic wood detector. Detailed Implementation

[0037] The following detailed, non-limiting description of the technical solution of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] Please see Figure 1-9 The present invention provides a technical solution: a laser cutting device, including a base 1, and a worktable 33 is fixedly installed on the side wall of the base 1;

[0039] A set of support plates 6 are fixedly installed on both sides of the top of the base 1. A front and rear drive assembly is installed on the top of the support plate 6. The front and rear drive assembly includes a first guide rail 7, a first slider 8, a sliding plate 9, a fixed plate 55 and a first servo motor 10. The fixed plate 55 is fixedly installed on the top of the support plate 6. The sliding plate 9 is slidably installed on the top of the fixed plate 55. The top of the sliding plate 9 is connected to the output end of the first servo motor 10. The first servo motor 10 is externally connected to a power supply. The power supply is connected to a controller to control the first servo motor 10. When the first servo motor 10 starts, it drives the sliding plate 9 to move back and forth on the fixed plate 55. A crossbeam 13 is fixedly installed on the top of the sliding plate 9. The sliding plate 9 drives the crossbeam 13 to move back and forth together. The first guide rail 7 is fixedly installed on the top of the support plate 6. The first slider 8 is slidably installed on the first guide rail 7. The top of the first slider 8 is fixedly connected to the crossbeam 13.

[0040] A towing frame 11 is fixedly installed on the side wall of the crossbeam 13. A first cable chain 12 is detachably connected to the towing frame 11. The first cable chain 12 plays a role in traction and protection for the front and rear drive components. A left and right drive component is installed on the top of the crossbeam 13. The left and right drive component includes a second guide rail 14, a sliding frame 15, an electrical box 16, and a second servo motor 20. The second guide rail 14 is fixedly installed on the top of the crossbeam 13. The sliding frame 15 is slidably installed above the second guide rail 14. The electrical box 16 is fixedly installed on the top of the sliding frame 15. The second servo motor 20 is installed inside the electrical box 16. The output end of the second servo motor 20 is connected to the sliding frame 15. The second servo motor 20 is externally connected to a power supply. The power supply is connected to a controller. The controller controls the start of the second servo motor 20. The second servo motor 20 drives the sliding frame 15 to slide left and right on the second guide rail 14. A guide rail protective cover 17 is installed on the top of the crossbeam 13. The guide rail protective cover 17 plays a role in preventing chips from entering the second guide rail 14.

[0041] An optical cable box 32 is fixedly installed on the back of the electrical box 16. A second drag chain 31 is connected to the top of the optical cable box 32. A cutting head 30 is fixedly connected to the other end of the second drag chain 31. An ultrasonic wood detector 56 is fixedly installed on the bottom right side of the cutting head 30. The ultrasonic wood detector 56 is used to detect the degree of internal corrosion of the wood. A connecting plate 29 is fixedly installed on the side wall of the cutting head 30. A second slider 28 is fixedly connected to the back of the connecting plate 29. The second slider 28 is slidably connected to the fourth guide rail 27. The second slider 28 can move up or down on the fourth guide rail 27. A main board 26 is fixedly installed on the side wall of the fourth guide rail 27. A third guide rail 18 is fixedly installed on the side wall of the crossbeam 13. A groove is provided on the back of the main board 26. The groove cooperates with the third guide rail 18, so that the main board 26 can move on the third guide rail 18.

[0042] A lead screw support seat 25 is fixedly installed at the front of the main board 26. A lead screw 23 is rotatably connected to the top of the lead screw support seat 25. A lead screw nut 24 is slidably installed on the lead screw 23. A connecting plate 29 is fixedly connected to the lead screw nut 24. A motor seat 22 is also fixedly installed at the front of the main board 26. A first motor 21 is fixedly connected to the top of the motor seat 22. The output end of the first motor 21 is connected to the lead screw 23. When the first motor 21 is energized, it drives the lead screw 23 to rotate together. The rotation of the lead screw 23 drives the lead screw nut 24 to make linear motion on the lead screw 23. The lead screw nut 24 drives the connecting plate 29 and the second slider 28 to make linear motion on the fourth guide rail 27.

[0043] A second connecting rod 34 is fixedly installed at the bottom of the crossbeam 13. A second motor 35 is fixedly installed at one end of the second connecting rod 34. The output end of the second motor 35 is connected through the second connecting rod 34 and is also fixedly connected to the fan 36. When the second motor 35 is powered on, it drives the fan 36 to rotate together. The fan 36 plays a role in cooling.

[0044] A support frame 37 is fixedly installed on the side wall of the workbench 33. An electric telescopic rod 38 is fixedly connected to the top of the support frame 37. The electric telescopic rod 38 is externally connected to a power source. The power source is connected to a controller. The controller controls the extension and retraction of the electric telescopic rod 38. A third connecting rod 39 is fixedly connected to the push rod of the electric telescopic rod 38. A wood moisture meter 40 is fixedly installed at the top of the third connecting rod 39. The wood moisture meter 40 is used to measure the moisture content of the wood.

[0045] Three sets of mounting plates 41 are fixedly installed on the back of the workbench 33. The side wall of the mounting plate 41 is fixedly connected to the bearing seat 42. The bearing seat 42 is rotatably connected to the connecting shaft 43. The external sleeve of the connecting shaft 43 is connected to the active swing arm 44. The other end of the active swing arm 44 is hinged to the fourth connecting rod 45. The right end of the fourth connecting rod 45 is fixedly connected to the cylinder piston rod 46. The other end of the cylinder piston rod 46 is slidably connected to the cylinder 47 and is located inside the cylinder 47. The other end of the cylinder 47 is fixedly installed with the cylinder support 48. The side wall of the cylinder support 48 is fixedly installed on the back of the workbench 33. The active swing arm 44 is also hinged to the connecting rod 49. The middle part and the right end of the connecting rod 49 are respectively hinged to the middle active swing arm 44 and the right active swing arm 44.

[0046] A rotating shaft 50 is fixedly connected to the end of the connecting shaft 43. Several roller seats 51 are fixedly installed on the rotating shaft 50. A material support ball 52 is installed on the top of the roller seat 51. The material support ball 52 serves to prevent the wood from shifting. Several insert plates 53 are fixedly installed inside the workbench 33. Several slots are provided on the insert plates 53. Several strips 54 are fixedly installed on the slots. A wooden board 19 is placed on top of the strips 54. The strips 54 serve to prevent the wooden board 19 from being scratched.

[0047] A support base 2 is fixedly installed on the side wall of the base 1. A support column 3 is fixedly installed on the top of the support base 2. A first connecting rod 4 is fixedly installed on the top of the support column 3. A control box 5 is fixedly installed on the top of the first connecting rod 4. The control box 5 is equipped with a control system, which includes a drive module, an adjustment module, a marking module, and a positioning module. The drive module includes a front-to-back drive unit, a left-to-right drive unit, and a top-to-bottom drive unit. The front-to-back drive unit is connected to a first servo motor 10. The left-to-right drive unit is connected to a second servo motor 20. The top-to-bottom drive unit is connected to a first motor 21. The adjustment module includes a moisture measurement unit and a cooling unit. The moisture measurement unit is connected to an electric telescopic rod 38. The cooling unit is connected to a second motor 35. The marking module is connected to an ultrasonic wood detector 56. The positioning module is connected to a cutting head 30.

[0048] The first embodiment describes how to select dry wood boards:

[0049] Step S1: The worker places the wooden board 19 on the workbench 33, with the wooden board 19 positioned below the wood moisture meter 40. The control system activates the moisture measurement unit, which controls the retraction of the electric telescopic rod 38. The retraction of the electric telescopic rod 38 causes the third connecting rod 39 to move downwards, which in turn moves the wood moisture meter 40 downwards. The wood moisture meter 40 uses electronic resistance technology to measure the moisture content of the wood. When the wood moisture meter 40 contacts the wooden board 19, the moisture measurement unit pauses the retraction of the electric telescopic rod 38, fixing the position of the wood moisture meter 40. The worker then activates the wood moisture meter 40, inserting its probe into the wooden board 19 and pressing the test button. The value displayed by the instrument is the average moisture content of the wooden board.

[0050] Step S2: Set the standard moisture content of the wood board to 15%. When the wood moisture meter 40 measures that the moisture content of the wood board 19 is higher than 15%, the operator removes the wood board 19 from the workbench 33 and places it aside. When the moisture content of the wood board 19 is not higher than 15%, the wood board 19 is selected for cutting.

[0051] The second embodiment describes how to cut on a smooth surface of a wooden board:

[0052] Step S21: After the moisture content of the wooden board 19 is found to be qualified, the staff starts the front and rear drive unit. The front and rear drive unit controls the first servo motor 10 to start. The first servo motor 10 starts and controls the sliding plate 9 to move backward on the fixed plate 55. The sliding plate 9 drives the crossbeam 13 to move backward together. The crossbeam 13 drives the first slider 8 to move backward on the first guide rail 7. When the crossbeam 13 is directly above the wooden board 19, the front and rear drive unit is paused and the position of the crossbeam 13 is fixed.

[0053] In step S22, when the crossbeam 13 is above the wooden board 19, the operator starts the left and right drive unit. The left and right drive unit signals to the second servo motor 20, controlling the second servo motor 20 to start. The output end of the second servo motor 20 is connected to the sliding frame 15. The second servo motor 20 controls the sliding frame 15 to move to the left on the second guide rail 14. The electrical box 16 on the sliding frame 15 moves to the left accordingly. The electrical box 16 drives the main board 26 to move to the left on the third guide rail 18. The electrical box 16 drives the optical cable box 32 and the second drag chain 31 to move to the left together. The second drag chain 31 drives the cutting head 30 to move to the left.

[0054] In step S23, during the leftward movement of the cutting head 30, the operator activates the marking module. The marking module is connected to the ultrasonic wood detector 56. The ultrasonic wood detector 56 includes a transmitter and a receiver. The detector uses ultrasonic waves to pass through the wood board 19 being inspected via the transmitter and receiver, measuring the propagation time. Based on the speed and propagation time of the ultrasonic waves, the distance to the wood board 19 is calculated. The ultrasonic wood detector 56 inspects the wood board 19 below. The degree of corrosion of the wood board 19 is expressed as a corrosion percentage. Specifically, it is the ratio of the distance L from the ultrasonic wood detector 56 to the surface of the wood board 19 to the preset initial distance to the wood board 19, multiplied by 100%. When the detection result is less than 150%, the degree of corrosion is set to be small; otherwise, the degree of corrosion of the detected wood board 19 is considered to be large. When the degree of corrosion of the wood board 19 is large, the signal is transmitted to the control system, and the control system controls the cutting head 30 to continue moving to the left.

[0055] In step S24, when the corrosion level of the wood board 19 is low, the control system pauses the left and right drive units, fixes the position of the cutting head 30, and starts the up and down drive units. The up and down drive units start the first motor 21, which in turn controls the lead screw 23 to rotate. The rotation of the lead screw 23 causes the lead screw nut 24 to move downward on the lead screw 23. The lead screw nut 24 causes the connecting plate 29 to move downward, and the connecting plate 29 causes the cutting head 30 to move downward. When the cutting head 30 is located on the surface of the wood board 19 with low corrosion, the operator starts the positioning module. The positioning module starts the cutting head 30 to perform laser cutting on the wood board 19. When the cutting head 30 cuts the wood board 19, it heats the wood board 19. When the temperature of the wood board 19 is too high, the operator starts the cooling module. The cooling module starts the second motor 35, which in turn controls the fan 36 to rotate, cooling the wood board 19 to prevent it from curling due to excessive temperature, which would affect the cutting.

[0056] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser cutting device, characterized in that, include: The base (1) and the workbench (33) fixedly installed on the side wall of the base (1); Support plates (6) are fixedly installed on the top of the base (1); The top of the support plate (6) is equipped with a front and rear drive assembly, which includes a first guide rail (7), a first slider (8), a sliding plate (9), a fixed plate (55), and a first servo motor (10), wherein: The fixing plate (55) is fixedly installed on the top of the support plate (6), and the sliding plate (9) is slidably installed above the fixing plate (55). The top of the sliding plate (9) is connected to the output end of the first servo motor (10). A crossbeam (13) is fixedly installed on the top of the sliding plate (9), and the first guide rail (7) is fixedly installed on the top of the support plate (6). The first slider (8) is slidably installed on the first guide rail (7). A towing frame (11) is fixedly installed on the side wall of the crossbeam (13), and a first cable chain (12) is detachably connected to the towing frame (11). A left and right drive assembly is installed on the top of the crossbeam (13). The left and right drive assembly includes a second guide rail (14), a sliding frame (15), an electrical box (16), and a second servo motor (20), wherein: The second guide rail (14) is fixedly installed on the top of the crossbeam (13), the sliding frame (15) is slidably installed above the second guide rail (14), the electrical box (16) is fixedly installed on the top of the sliding frame (15), and the second servo motor (20) is installed inside the electrical box (16). An optical cable box (32) is fixedly installed on the back of the electrical box (16). A second drag chain (31) is connected above the optical cable box (32). A cutting head (30) is fixedly connected to the other end of the second drag chain (31). An ultrasonic wood detector (56) is fixedly installed on the bottom right side of the cutting head (30). A connecting plate (29) is fixedly installed on the side wall of the cutting head (30), and a second slider (28) is fixedly connected to the back of the connecting plate (29). The second slider (28) is slidably connected to the fourth guide rail (27), and a main board (26) is fixedly installed on the side wall of the fourth guide rail (27). A support frame (37) is fixedly installed on the side wall of the workbench (33). An electric telescopic rod (38) is fixedly connected to the top of the support frame (37). A third connecting rod (39) is fixedly connected to the push rod of the electric telescopic rod (38). A wood moisture meter (40) is fixedly installed at the top of the third connecting rod (39). A support seat (2) is fixedly installed on the side wall of the base (1), a support column (3) is fixedly installed on the top of the support seat (2), and a first connecting rod (4) is fixedly installed on the top of the support column (3). A control box (5) is fixedly installed on the top of the first connecting rod (4). The control box (5) is equipped with a control system. The control system includes a drive module, a control module, a marking module and a positioning module. The drive module includes a front and rear drive unit, a left and right drive unit and an up and down drive unit. The control module includes a moisture measurement unit and a cooling unit. The marking module is connected to an ultrasonic wood detector (56) and the positioning module is connected to a cutting head (30).

2. The laser cutting equipment according to claim 1, characterized in that: A guide rail protective cover (17) is installed above the crossbeam (13).

3. The laser cutting equipment according to claim 2, characterized in that: A lead screw support seat (25) is fixedly installed in front of the main board (26), and a lead screw (23) is rotatably connected to the top of the lead screw (25). A lead screw nut (24) is slidably installed on the lead screw (23). A motor mount (22) is fixedly installed in front of the main board (26), and a first motor (21) is fixedly connected to the top of the motor mount (22). The output end of the first motor (21) is connected to a lead screw (23).

4. The laser cutting equipment according to claim 3, characterized in that: A second connecting rod (34) is fixedly installed at the bottom of the crossbeam (13). A second motor (35) is fixedly installed at one end of the second connecting rod (34). The output end of the second motor (35) is connected through the second connecting rod (34) and simultaneously fixedly connected to the fan (36).

5. A laser cutting device according to claim 1, characterized in that: Three sets of mounting plates (41) are fixedly installed on the back of the workbench (33). The side wall of the mounting plate (41) is fixedly connected to the bearing seat (42). The bearing seat (42) is rotatably connected to the connecting shaft (43). The external sleeve of the connecting shaft (43) is connected to the active swing arm (44). The other end of the active swing arm (44) is hinged to the fourth connecting rod (45). The right end of the fourth connecting rod (45) is fixedly connected to the cylinder piston rod (46). The other end of the cylinder piston rod (46) is slidably connected to the cylinder (47) and located inside the cylinder (47). The other end of the cylinder (47) is fixedly installed with the cylinder support (48). The side wall of the cylinder support (48) is fixedly installed on the back of the workbench (33). A connecting rod (49) is also hinged on the active swing arm (44). The middle part and the right end of the connecting rod (49) are respectively hinged to the middle active swing arm (44) and the right active swing arm (44).

6. The method of using a laser cutting device according to claim 5, characterized in that: Includes the following steps: Step S1: The staff places the wooden board (19) on the workbench (33). The wooden board (19) is located below the moisture meter (40). The control system starts the moisture measurement unit. The moisture measurement unit controls the electric telescopic rod (38) to retract. The retraction of the electric telescopic rod (38) drives the third connecting rod (39) to move downward. The third connecting rod (39) drives the wood moisture meter (40) to move downward together. When the wood moisture meter (40) touches the wooden board (19), the moisture measurement unit stops the retraction of the electric telescopic rod (38) and fixes the position of the wood moisture meter (40). The staff starts the wood moisture meter (40) to start measuring the moisture content of the wooden board (19). Step S2: Set the standard moisture content of the wood board to 15%. When the wood moisture meter (40) measures that the moisture content of the wood board (19) is higher than 15%, the operator takes the wood board (19) off the workbench (33) and places it aside. When the moisture content of the wood board (19) is not higher than 15%, the wood board (19) is selected for cutting.

7. The method of using a laser cutting device according to claim 6, characterized in that: Includes the following steps: Step S21: After the moisture content of the wooden board (19) is qualified, the staff starts the front and rear drive unit. The front and rear drive unit controls the first servo motor (10) to start. The first servo motor (10) starts and controls the sliding plate (9) to move backward on the fixed plate (55). The sliding plate (9) drives the crossbeam (13) to move backward together. The crossbeam (13) drives the first slider (8) to move backward on the first guide rail (7). When the crossbeam (13) is directly above the wooden board (19), the front and rear drive unit is paused and the position of the crossbeam (13) is fixed. Step S22: When the crossbeam (13) is above the wooden board (19), the worker starts the left and right drive unit. The left and right drive unit signal is connected to the second servo motor (20) to control the second servo motor (20) to start. The output end of the second servo motor (20) is connected to the sliding frame (15). The second servo motor (20) controls the sliding frame (15) to move to the left on the second guide rail (14). The electrical box (16) on the sliding frame (15) moves to the left accordingly. The electrical box (16) drives the main board (26) to move to the left on the third guide rail (18). The electrical box (16) drives the optical cable box (32) and the second drag chain (31) to move to the left together. The second drag chain (31) drives the cutting head (30) to move to the left. In step S23, during the leftward movement of the cutting head (30), the operator activates the marking module. The marking module signal is connected to the ultrasonic wood detector (56). The ultrasonic wood detector (56) detects the wood board (19) below. The degree of corrosion of the wood board (19) is expressed as a corrosion percentage. Specifically, it is the ratio of the distance L from the ultrasonic wood detector (56) to the surface of the wood board (19) to the preset initial distance from the wood board (19), multiplied by 100%. When the detection result is less than 150%, the degree of corrosion is set to be small. Otherwise, the degree of corrosion of the detected wood board (19) is considered to be large. When the degree of corrosion of the wood board (19) is large, the signal is transmitted to the control system. The control system controls the cutting head (30) to continue to move to the left. Step S24: When the corrosion level of the wooden board (19) is low, the control system controls the left and right drive units to pause, fixes the position of the cutting head (30), and starts the up and down drive units. The up and down drive units control the first motor (21) to start, and the first motor (21) controls the lead screw (23) to rotate. The rotation of the lead screw (23) drives the lead screw nut (24) to move downward on the lead screw (23). The lead screw nut (24) drives the connecting plate (29) to move downward, and the connecting plate (29) drives the cutting head (30) to move downward. When the cutting head (30) is at the corrosion level... When the surface of the small wooden board (19) is cut, the staff starts the positioning module, and the positioning module starts the cutting head (30) to laser cut the wooden board (19). When the cutting head (30) cuts the wooden board (19), it heats the wooden board (19). When the temperature of the wooden board (19) is too high, the staff starts the cooling module. The cooling module controls the second motor (35) to start, and the second motor (35) controls the fan (36) to rotate to cool the wooden board (19) so as to prevent the wooden board (19) from curling due to excessive temperature, which would affect the cutting.

Images