Laser hot precision cutting equipment for chain plate forming steel plate and precision cutting method of laser hot precision cutting equipment

Abstract

The invention belongs to the technical field of steel plate cutting, and particularly relates to chain plate forming steel plate laser hot precision cutting equipment and a precision cutting method.The chain plate forming steel plate laser hot precision cutting equipment comprises a workbench, a movable moving frame is arranged at the top of the workbench, a movable laser cutting head is arranged at the bottom of the moving frame, and a cutting plate is arranged at the bottom of the laser cutting head; the cutting plate makes contact with the back of the material and is used for being inserted into the material cutting position after the material is cut by the laser cutting head. By designing a closed-loop material pumping system and a double-layer waste material collecting mechanism for pumping and leaking materials, chippings and smoke dust generated in the cutting process are pumped in real time, and cleanliness of a machining area is ensured. Meanwhile, the protective cover at the top of the workbench is made of transparent high-temperature-resistant PC materials, splashing objects are blocked, a negative pressure area is formed in the cover, smoke dust and chippings are efficiently extracted, the PM concentration of the working environment is remarkably reduced, the occupational health standard is met, and the health and safety of operators are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of steel plate cutting, and particularly relates to a laser thermal precision cutting device for chain plate formed steel plates and a precision cutting method thereof. Background Art

[0002] With the continuous progress of industrial manufacturing technology, the cutting processing requirements for chain plate formed steel plates are increasing day by day, especially in terms of precision, efficiency, environmental friendliness, and material adaptability. Traditional cutting methods, such as mechanical cutting or flame cutting, often have problems such as low cutting precision, low processing efficiency, serious environmental pollution, and poor material adaptability, making it difficult to meet the needs of modern industrial manufacturing. In the cutting process of chain plate formed steel plates by traditional cutting methods, it is difficult to achieve high-precision cutting, resulting in rough cutting edges and inaccurate dimensions, which affect subsequent processing and product quality. Traditional cutting methods have a long processing cycle. Especially when processing steel plates with complex contours, it is often necessary to adjust the cutting path and tools multiple times, resulting in low overall processing efficiency. Traditional cutting methods will generate a large amount of smoke and debris during the cutting process, which not only pollutes the working environment but also may pose a hazard to the health of operators, while increasing the difficulty and cost of subsequent cleaning work. Traditional cutting methods often have high requirements for the thickness, hardness, and other characteristics of materials, making it difficult to adapt to chain plate formed steel plates of different specifications and materials, restricting the versatility and flexibility of the equipment. Summary of the Invention

[0003] In order to solve the above problems, the present invention proposes a laser thermal precision cutting device for chain plate formed steel plates and a precision cutting method thereof, which more precisely solves the problems raised in the above background art.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention proposes a laser thermal precision cutting device for chain plate formed steel plates, including a workbench. A movable moving frame is arranged on the top of the workbench. A movable laser cutting head is arranged at the bottom of the moving frame. A cutting plate is arranged at the bottom of the laser cutting head. The cutting plate contacts the back of the material and is used to insert into the cutting part of the material after the material is cut by the laser cutting head for removing the burrs at the cutting part. A reset member is installed on the back of the moving frame, and the reset member is used to reset the cutting plate. Extraction parts are arranged on both sides of the cutting plate at the moving frame, and the extraction parts are used to extract the debris after cutting. An installation groove is opened on the inner wall of the cutting plate. A cutting blade is rotatably connected to the installation groove through a rotating shaft. A return spring is installed between the cutting blade and the inner wall of the installation groove. The extraction part includes extraction pipes installed at the moving frame and movable together with the moving frame. The extraction pipes are symmetrically arranged at the cutting plate. A plurality of extraction heads are installed at the bottom of the extraction pipes, and the extraction heads are used to extract the waste materials.

[0006] Preferably, the material extraction part further includes a material extraction pump installed at the bottom of the workbench. A storage box is arranged at the bottom of the workbench. A discharge pipe is installed between the material extraction pump and the storage box. A connecting hose is installed at the top of the material extraction pump. The end of the connecting hose is installed with a U-shaped pipe, which is communicated with the material extraction pipe. An installation block is installed at the moving frame, and the installation block is used for installing the material extraction pipe.

[0007] Preferably, a plurality of material leakage grooves are penetrated through the top of the workbench, and the material leakage grooves are used for the falling of waste materials. A bottom frame is installed at the bottom of the workbench, and the bottom frame is used for installing the storage box and the material extraction pump.

[0008] Preferably, a rodless cylinder one is installed on the back of the workbench, and the rodless cylinder one is used to drive the movement of the moving frame. A rodless cylinder two is installed on the inner wall of the moving frame, and the rodless cylinder two is used to drive the movement of the laser cutting head.

[0009] Preferably, clamping parts are arranged at the four corners on the top of the workbench, and the clamping parts are used for positioning the workpiece. The clamping part includes a threaded plate installed on the top of the workbench. One side of the threaded plate is rotatably connected with a first threaded rod through a bearing. The end of the first threaded rod is rotatably connected with a moving plate through a bearing. The moving plate is used for limiting the workpiece. A threaded ring is installed on the top of the moving plate. A second threaded rod is threadedly connected to the inner wall of the threaded ring. The bottom of the second threaded rod is rotatably connected with a clamping plate through a bearing, and the clamping plate is used for clamping.

[0010] Preferably, a first guide rod is installed on one side of the moving plate, and the first guide rod penetrates through the threaded plate. A second guide rod is installed on the top of the clamping plate, and the second guide rod penetrates through the moving plate.

[0011] Preferably, the reset part includes a reset spring installed on the back of the moving frame. A connecting disk is installed at the end of the reset spring. A push rod is installed on the side of the connecting disk. The push rod penetrates through the moving frame and is connected to the cutting plate.

[0012] Preferably, a protective cover is installed on the top of the workbench at the position of the material extraction pipe. The laser cutting head is used to be inserted between the protective covers. The protective cover is used to block the flying objects during the cutting of the laser cutting head. A connecting piece is installed at the bottom of the protective cover, and the connecting piece is connected to the material extraction pipe.

[0013] A laser thermal fine cutting method for chain plate forming steel plates includes the following steps: Start the equipment, and the rodless cylinder 1 and the rodless cylinder 2 reset to the starting position. Place the steel plate to be processed on the workbench, and drive the moving plate to move along the guide rod 1 by rotating the threaded rod 1 to preliminarily position the workpiece. Then rotate the threaded rod 2 to push the clamping plate to press down along the guide rod 2 to achieve secondary locking of the workpiece. The anti-slip lines on the surface of the clamping plate ensure that the workpiece will not displace during the cutting process. Drive the moving frame to move along the X-axis to the starting cutting position by the rodless cylinder 1. Start the rodless cylinder 2 to drive the laser cutting head to move along the Y-axis and start laser cutting. The laser beam penetrates the steel plate to form a precise cut. After the laser cutting is completed, the cutting plate at the bottom of the laser cutting head immediately inserts into the cut, and the burrs are removed by the cutting blades. The cutting blades are kept in a fitting state by the return spring to ensure automatic reset after the burrs are removed. While the laser cutting and burr removal are in progress, the material extraction part starts to work. Start the material extraction pump, and extract the air in the storage box through the discharge pipe to form a negative pressure. The material extraction head at the bottom of the material extraction pipe is designed as a porous suction nozzle, which is directly aligned with the cutting area to extract debris in real time. The material extraction head is connected to the material extraction pump through a U-shaped pipe and a connecting hose to form a closed-loop material extraction system. The debris not captured by the material extraction system directly falls into the storage box through the leakage groove at the top of the workbench. The bottom frame is provided for placing the storage box. After the cutting is completed, the rodless cylinder 1 and the rodless cylinder 2 respectively drive the moving frame and the laser cutting head to reset to the starting position. At the same time, the reset spring in the reset part applies a reverse thrust through the push rod to separate the cutting plate from the cut and reset to the initial position. The polytetrafluoroethylene coating on the connecting disc reduces the friction with the moving frame to ensure that the reset response speed ≤. seconds. Rotate the threaded rod 1 and the threaded rod 2 to release the clamping force, and remove the processed steel plate from the workbench. During the whole cutting process, the protective cover at the top of the workbench always covers the cutting area, which is made of transparent high-temperature resistant PC material to block the flying objects. The bottom of the protective cover is fixed to the material extraction pipe through a connecting piece to form a closed space. The material extraction head forms a negative pressure area in the cover to efficiently extract the smoke and debris, reducing the PM. concentration in the working environment by %, meeting the occupational health standards. After the cutting is completed, turn off the material extraction pump, clean the waste in the storage box, and prepare for the next round of processing.

[0014] Compared with the prior art, the present invention provides a laser thermal fine cutting equipment for chain plate forming steel plates, which has the following beneficial effects:

[0015] This laser thermal fine cutting equipment for chain plate forming steel plates, through the design of a closed-loop material extraction system and a double-layer waste collection mechanism (suction + leakage), extracts the debris and smoke generated during the cutting process in real time, ensuring the cleanliness of the processing area. At the same time, the protective cover at the top of the workbench is made of transparent high-temperature resistant PC material, which not only blocks the flying objects, but also forms a negative pressure area in the cover to efficiently extract the smoke and debris, significantly reducing the PM. concentration in the working environment and meeting the occupational health standards, ensuring the health and safety of the operators.

[0016] The laser hot precision cutting equipment for chain plate forming steel plate realizes the precise positioning of the laser cutting head in a two-dimensional plane through the dual cylinder control system rodless cylinder 1 and rodless cylinder 2 combined with PLC programming, with a positioning accuracy of up to ±.mm. This makes the equipment suitable for cutting complex contours, significantly improving processing efficiency and accuracy. At the same time, the integrated design of laser cutting and burr removal reduces processing steps and further shortens the processing cycle.

[0017] The chain plate forming steel plate laser thermal precision cutting equipment, by installing the clamp, ensures the workpiece does not move during the cutting process through the double locking mechanism for initial positioning and secondary locking, and is suitable for steel plates with a thickness range of -mm. The anti-slip texture on the surface of the clamping plate and the chrome plating of the guide structure further enhance the stability of the clamping and the service life of the equipment. This design enables the equipment to handle workpieces of various specifications, improving the versatility and flexibility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a chain plate forming steel plate laser thermal precision cutting equipment proposed by the present invention;

[0019] Figure 2 This is a structural side view of a chain plate forming steel plate laser thermal precision cutting device proposed by the present invention;

[0020] Figure 3 A top view of the structure of a chain plate forming steel plate laser thermal precision cutting device proposed by the present invention;

[0021] Figure 4 This is a structural front view of a chain plate forming steel plate laser thermal precision cutting device proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a clamping part of a chain plate forming steel plate laser thermal precision cutting equipment proposed by the present invention;

[0023] Figure 6 A schematic diagram of the structure of a chain plate forming steel plate laser thermal precision cutting equipment cutting plate proposed by the present invention;

[0024] Figure 7 A chain plate forming steel plate laser thermal precision cutting device proposed by the present invention Figure 2 A magnified schematic diagram of the middle A area;

[0025] Figure 8 A chain plate forming steel plate laser thermal precision cutting device proposed by the present invention Figure 4 Enlarged schematic diagram of area B in the middle.

[0026] In the figure: 1. Workbench; 11. Material leakage trough; 12. Underframe; 2. Moving frame; 21. Linear actuator one; 22. Linear actuator two; 3. Laser cutting head; 4. Cutting plate; 41. Installation groove; 42. Return spring; 43. Cutting blade; 5. Reset component; 51. Reset spring; 52. Connection plate; 53. Push rod; 6. Material extraction part; 61. Material extraction pump; 62. Discharge pipe; 63. Connection hose; 64. U-shaped pipe; 65. Material extraction pipe; 66. Material extraction head; 67. Installation block; 7. Clamping component; 71. Moving plate; 72. Threaded plate; 73. First threaded rod; 74. Threaded ring; 75. Second threaded rod; 76. Clamping plate; 77. First guide rod; 78. Second guide rod; 8. Protective cover; 81. Connection piece; 9. Storage box. Detailed implementation mode

[0027] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0028] Embodiment

[0029] As Figures 1-8 shown, the device proposed in an embodiment of the present invention is based on the workbench 1, and a moving frame 2 that can move along the X-axis is installed on its top through a guide rail. A laser cutting head 3 is provided at the bottom of the moving frame 2, and the laser cutting head 3 is driven by the linear actuator two 22 to move along the Y-axis to achieve precise positioning in the two-dimensional plane. The bottom of the laser cutting head 3 is connected to the cutting plate 4, and the cutting plate 4 contacts the back of the material and is inserted into the cut after laser cutting. An installation groove 41 is opened on the inner wall of the cutting plate 4, and the cutting blade 43 is installed through a rotating shaft. The return spring 42 keeps the cutting blade 43 in a fitting state to ensure automatic reset after deburring. A reset component 5 is installed on the back of the moving frame 2 and is connected to the cutting plate 4 through the push rod 53. After cutting is completed, the spring 51 drives the cutting plate 4 to reset. Material extraction parts 6 are arranged on both sides of the moving frame 2. The material extraction pipes 65 are symmetrically distributed on both sides of the cutting plate 4, and the bottom material extraction heads 66 are directly aligned with the cutting area to extract debris in real time. The integration of laser cutting and deburring is realized, and the material extraction system synchronously cleans up waste chips to improve processing efficiency.

[0030] In the present invention, the material extraction part 6 includes a material extraction pump 61 and a storage box 9 installed at the bottom of the workbench 1. The material extraction pump 61 is communicated with the storage box 9 through the discharge pipe 62, and a connection hose 63 extends to the U-shaped pipe 64 at the top. The U-shaped pipe 64 is communicated with the material extraction pipes 65 on the moving frame 2. The material extraction pipes 65 are fixed on the moving frame 2 through the installation blocks 67 and move synchronously with the moving frame. The material extraction head 66 is designed as a multi-hole suction nozzle, covering both sides of the cutting area to ensure efficient extraction of debris. A closed-loop material extraction system is formed, and the waste chips are directly stored in the storage box 9 to avoid contaminating the workbench and reduce manual cleaning.

[0031] In the present invention, a plurality of leakage grooves 11 are provided on the top of the workbench 1, allowing the debris not captured by the extraction system to fall directly. A base frame 12 is installed at the bottom, integrating the extraction pump 61 and the material storage box 9, and the top opening of the material storage box 9 is aligned with the leakage groove 11. The double-layer waste collection mechanism suction + leakage ensures the cleanliness of the processing area and reduces the frequency of equipment maintenance.

[0032] In the present invention, a rodless cylinder 1 21 is installed on the back of the workbench 1, and the movable frame 2 is driven to reciprocate along the X-axis through the slider. A rodless cylinder 2 22 is installed inside the movable frame 2 to drive the laser cutting head 3 to move along the Y-axis. The dual cylinder control system realizes path planning through PLC programming, and the positioning accuracy reaches ±0.05mm. The laser cutting head 3 can be accurately positioned at any position in the plane, which is suitable for complex contour cutting.

[0033] In the present invention, the four corners of the workbench 1 are equipped with clamping parts 7, each of which includes a threaded plate 72, a movable plate 71 and a clamping plate 76. The rotating threaded rod 1 73 drives the movable plate 71 to move along the guide rod 1 77 to preliminarily position the workpiece. Then, the rotating threaded rod 2 75 pushes the clamping plate 76 down along the guide rod 2 78 to achieve secondary locking. The surface of the clamping plate 76 is provided with anti-slip patterns to adapt to steel plates of different thicknesses. The double locking mechanism ensures that the workpiece does not move during the cutting process and is suitable for steel plates with a thickness range of 8-50mm.

[0034] In the present invention, a guide rod 1 77 is installed on the side of the moving plate 71, which cooperates with the linear bearing on the threaded plate 72 to ensure the straightness of horizontal movement. A guide rod 2 78 is installed on the top of the clamping plate 76, which passes through the guide hole on the moving plate 71 to ensure the stability of vertical downward pressure. The guide rods are all chrome-plated to reduce the friction coefficient. The guide structure makes the clamping force evenly distributed and prolongs the service life of the equipment.

[0035] In the present invention, the reset member 5 is composed of a reset spring 51, a connecting plate 52 and a push rod 53. After the cutting plate 4 has completed the burr removal, the reset spring 51 applies a reverse thrust through the push rod 53 to make it disengage from the incision. The connecting plate 52 is coated with polytetrafluoroethylene to reduce the friction with the moving frame 2. The reset response speed is ≤0.3 seconds, ensuring the synchronization between the cutting plate 4 and the laser cutting head 3.

[0036] In the present invention, a protective cover 8 is installed on the top of the workbench 1, which is made of transparent high-temperature resistant PC material and covers the cutting area. The bottom of the protective cover 8 is fixed to the extraction pipe 65 through a connecting piece 81 to form a closed space. When the laser cutting head 3 is cutting, the protective cover 8 blocks the splashing objects, and the extraction head 66 forms a negative pressure area in the cover to efficiently extract smoke and debris. The protective cover 8 reduces the PM2.5 concentration in the working environment by 90%, which meets the occupational health standards.

[0037] A laser thermal fine cutting method for forming steel plates of chain plates comprises the following steps: Start the equipment, and the rodless cylinder 1 (21) and the rodless cylinder 2 (22) are reset to the starting positions. Place the steel plate to be processed on the workbench 1, and drive the moving plate 71 to move along the guide rod 1 (77) by rotating the threaded rod 1 (73) to perform preliminary positioning of the workpiece. Then rotate the threaded rod 2 (75) to push the clamping plate 76 to press down along the guide rod 2 (78) to achieve secondary locking of the workpiece. The anti-slip lines on the surface of the clamping plate 76 ensure that the workpiece does not displace during the cutting process. Drive the moving frame 2 to move along the X-axis to the starting cutting position by the rodless cylinder 1 (21). Start the rodless cylinder 2 (22) to drive the laser cutting head 3 to move along the Y-axis and start laser cutting. The laser beam penetrates the steel plate to form a precise cut. After the laser cutting is completed, the cutting plate 4 at the bottom of the laser cutting head 3 is immediately inserted into the cut, and the burrs are removed by the cutting piece 43. The cutting piece 43 is kept in a fitting state by the return spring 42 to ensure automatic reset after the burrs are removed. While the laser cutting and burr removal are in progress, the material extraction part 6 starts to work. Start the material extraction pump 61 to extract the air in the storage box 9 through the discharge pipe 62 to form a negative pressure. The material extraction head 66 at the bottom of the material extraction pipe 65 is designed as a porous suction nozzle and is directly aimed at the cutting area to extract debris in real time. The material extraction head 66 is connected to the material extraction pump 61 through the U-shaped pipe 64 and the connecting hose 63 to form a closed-loop material extraction system. The debris not captured by the material extraction system directly falls into the storage box 9 through the leakage trough 11 at the top of the workbench 1. The bottom frame 12 is provided for placing the storage box. After the cutting is completed, the rodless cylinder 1 (21) and the rodless cylinder 2 (22) drive the moving frame 2 and the laser cutting head 3 to reset to the starting positions respectively. At the same time, the return spring 51 in the resetting member 5 applies a reverse thrust through the push rod 53 to separate the cutting plate 4 from the cut and reset it to the initial position. The polytetrafluoroethylene coating on the connecting disc 52 reduces the friction with the moving frame 2 to ensure that the reset response speed is ≤ 0.3 seconds. Rotate the threaded rod 1 (73) and the threaded rod 2 (75) to release the clamping force, and remove the processed steel plate from the workbench 1. During the whole cutting process, the protective cover 8 at the top of the workbench 1 always covers the cutting area, which is made of transparent high-temperature resistant PC material to block the flying objects. The bottom of the protective cover 8 is fixed to the material extraction pipe 65 through the connecting piece 81 to form a sealed space. The material extraction head 66 forms a negative pressure area inside the cover to efficiently extract the soot and debris, reducing the PM2.5 concentration in the working environment by 90%, meeting the occupational health standards. After the cutting is completed, turn off the material extraction pump 61, clean the waste in the storage box 9, and prepare for the next round of processing.

[0038] Finally, it should be noted that: The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only an example and does not constitute a limitation to this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification, so such modifications, improvements, and corrections still fall within the spirit and scope of the exemplary embodiments of this specification. At the same time, this specification uses specific terms to describe the embodiments of this specification. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined. In addition, unless explicitly stated in the claims, the order of the processing elements and sequences described in this specification, the use of numerical letters, or the use of other names are not used to limit the order of the processes and methods in this specification.

[0039] Finally, it should be noted that: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A chain plate forming steel plate laser thermal precision cutting device, comprising a workbench (1), characterized in that: A movable frame (2) is arranged on the top of the workbench (1), a movable laser cutting head (3) is arranged on the bottom of the movable frame (2), a cutting plate (4) is arranged on the bottom of the laser cutting head (3), the cutting plate (4) is in contact with the back of the material, and is used to be inserted into the cutting position of the material after the material is cut by the laser cutting head (3), and is used to remove the rough pieces at the cutting position, a reset member (5) is installed on the back of the movable frame (2), and the reset member (5) is used to reset the cutting plate (4), and a material extraction part (6) is arranged on both sides of the cutting plate (4) of the movable frame (2), and the material extraction part (6) For extracting the debris after cutting, the inner wall of the cutting plate (4) is provided with a mounting groove (41), the mounting groove (41) is rotatably connected with a cutting blade (43) via a rotating shaft, a return spring (42) is installed between the cutting blade (43) and the inner wall of the mounting groove (41), the extraction part (6) comprises an extraction pipe (65) installed on the moving frame (2) and movable with the moving frame (2), the extraction pipe (65) is symmetrically arranged at the cutting plate (4), a plurality of extraction heads (66) are installed at the bottom of the extraction pipe (65), and the extraction heads (66) are used for extracting waste materials.

2. The chain plate forming steel plate laser thermal precision cutting equipment according to claim 1 is characterized in that: The material extraction part (6) also includes a material extraction pump (61) installed at the bottom of the workbench (1); a material storage box (9) is provided at the bottom of the workbench (1); a discharge pipe (62) is installed between the material extraction pump (61) and the material storage box (9); a connecting hose (63) is installed at the top of the material extraction pump (61); a U-shaped tube (64) is installed at the end of the connecting hose (63); the U-shaped tube (64) is connected to the material extraction tube (65); a mounting block (67) is installed at the movable frame (2); the mounting block (67) is used for installing the material extraction tube (65).

3. The chain plate forming steel plate laser thermal precision cutting equipment according to claim 2 is characterized in that: The top of the workbench (1) is provided with a plurality of material leakage grooves (11) for dropping waste materials. The bottom of the workbench (1) is provided with a base frame (12) for installing a material storage box (9) and a material extraction pump (61).

4. The chain plate forming steel plate laser thermal precision cutting equipment according to claim 1, characterized in that: A rodless cylinder (21) is installed on the back of the workbench (1), and the rodless cylinder (21) is used to drive the movement of the movable frame (2). A rodless cylinder (22) is installed on the inner wall of the movable frame (2), and the rodless cylinder (22) is used to drive the movement of the laser cutting head (3).

5. The chain plate forming steel plate laser thermal precision cutting equipment according to claim 1 is characterized in that The top of the workbench (1) is provided with clamping members (7) at four corners, and the clamping members (7) are used for positioning the workpiece. The clamping members (7) include a threaded plate (72) mounted on the top of the workbench (1), and the side of the threaded plate (72) is rotatably connected to a threaded rod (73) via a bearing, and the end of the threaded rod (73) is rotatably connected to a movable plate (71) via a bearing, and the movable plate (71) is used for limiting the position of the workpiece. A threaded ring (74) is mounted on the top of the movable plate (71), and the inner wall of the threaded ring (74) is threadedly connected to a threaded rod (75), and the bottom of the threaded rod (75) is rotatably connected to a clamping plate (76) via a bearing, and the clamping plate (76) is used for clamping.

6. The chain plate forming steel plate laser thermal precision cutting equipment according to claim 5, characterized in that: A guide rod 1 (77) is installed on the side of the movable plate (71), and the guide rod 1 (77) is connected to the threaded plate (72). A guide rod 2 (78) is installed on the top of the clamping plate (76), and the guide rod 2 (78) is connected to the movable plate (71).

7. The chain plate forming steel plate laser thermal precision cutting equipment according to claim 1, characterized in that: The reset member (5) comprises a reset spring (51) mounted on the back of the movable frame (2); a connecting plate (52) is mounted on the end of the reset spring (51); a push rod (53) is mounted on the side of the connecting plate (52); and the push rod (53) passes through the movable frame (2) and is connected to the cutting plate (4).

8. The chain plate forming steel plate laser thermal precision cutting equipment according to claim 1, characterized in that: A protective cover (8) is installed on the top of the workbench (1) at the extraction pipe (65), and the laser cutting head (3) is used to be inserted between the protective covers (8). The protective cover (8) is used to block splashes when the laser cutting head (3) is cutting. A connecting piece (81) is installed on the bottom of the protective cover (8), and the connecting piece (81) is connected to the extraction pipe (65).

9. A chain plate forming steel plate laser thermal precision cutting method, comprising a chain plate forming steel plate laser thermal precision cutting device according to claims 1-8, characterized in that: The method comprises the following steps: starting the equipment, and resetting the rodless cylinder 1 (21) and the rodless cylinder 2 (22) to the starting position. Placing the steel plate to be processed on the workbench (1), and driving the movable plate (71) to move along the guide rod 1 (77) by rotating the threaded rod 1 (73) to perform preliminary positioning of the workpiece. Then, rotating the threaded rod 2 (75), pushing the clamping plate (76) to press down along the guide rod 2 (78), and realizing secondary locking of the workpiece. The anti-slip texture on the surface of the clamping plate (76) ensures that the workpiece will not be displaced during the cutting process, and driving the movable frame (2) to move along the X-axis to the starting cutting position by driving the rodless cylinder 1 (21). The rodless cylinder 2 (22) is started, and drives the laser cutting head (3) to move along the Y-axis, and laser cutting begins. The laser beam penetrates the steel plate and forms a precise incision. After the laser cutting is completed, the cutting plate (4) at the bottom of the laser cutting head (3) is immediately inserted into the incision, and the burrs are removed by using the cutting blade (43). The cutting blade (43) is kept in a fitted state by the return spring (42) to ensure automatic reset after the burr is removed. While laser cutting and burr removal are taking place, the extraction unit (6) starts to work. The extraction pump (61) is started to extract the air in the storage box (9) through the discharge pipe (62) to form a negative pressure. The extraction head (66) at the bottom of the extraction pipe (65) is designed as a multi-porous suction nozzle, which is directly aimed at the cutting area to extract debris in real time. The extraction head (66) is connected to the extraction pump (61) through a U-shaped tube (64) and a connecting hose (63) to form a closed-loop extraction system. The debris not captured by the extraction system falls directly into the storage box (9) through the leakage trough (11) on the top of the workbench (1). The base frame (12) is provided for placing the storage box. After the cutting is completed, the rodless cylinder 1 (21) and the rodless cylinder 2 (22) respectively drive the mobile frame (2) and the laser cutting head (3) to reset to the starting position. At the same time, the reset spring (51) in the reset member (5) applies a reverse thrust through the push rod (53) to disengage the cutting plate (4) from the incision and reset to the initial position. The polytetrafluoroethylene coating of the connecting plate (52) reduces the friction with the mobile frame (2) to ensure that the reset response speed is ≤0.3 seconds. Rotate the threaded rod 1 (73) and the threaded rod 2 (75) to release the clamping force and remove the processed steel plate from the workbench (1). During the entire cutting process, the protective cover (8) on the top of the workbench (1) always covers the cutting area and is made of transparent high-temperature resistant PC material to block splashes. The bottom of the protective cover (8) is fixed to the extraction pipe (65) through a connecting piece (81) to form a closed space. The extraction head (66) forms a negative pressure zone in the cover, which efficiently extracts smoke and debris, reducing the PM2.5 concentration in the working environment by 90%, meeting the occupational health standards. After the cutting is completed, the extraction pump (61) is turned off, the waste in the storage box (9) is cleaned, and preparation is made for the next round of processing.

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