Laser cutting machine tool

Abstract

The utility model belongs to the technical field of laser processing, and relates to a laser cutting machine tool. The laser cutting machine tool comprises a tool body and a dust extraction system, the tool body comprises an inner supporting plate, an outer supporting plate and a bottom plate, the outer supporting plate is fixed to the bottom plate, reinforcing ribs are arranged between the inner supporting plate and the outer supporting plate, the inner supporting plate and the outer supporting plate are fixedly connected with the reinforcing ribs respectively, and the dust extraction system is installed on the tool body and comprises a dust extraction pipeline. A part of the dust suction pipeline is embedded into the bed body, the top face of the dust suction pipeline is fixedly connected with the inner supporting plate, one side face of the dust suction pipeline is fixedly connected with the reinforcing ribs, and the side face, away from the reinforcing ribs, of the dust suction pipeline is provided with a suction opening and protrudes out of the inner supporting plate. According to the technical scheme provided by the invention, the laser cutting machine tool can have higher dust extraction efficiency.

Description

Technical Field

[0001] This application relates to the field of laser processing technology, and more specifically, to a laser cutting machine tool. Background Technology

[0002] Laser cutting, as a new type of thermal cutting technology, has many advantages such as fast cutting speed, high production efficiency and small heat-affected zone. It has become one of the main processing methods for sheet metal and has been widely used.

[0003] Laser cutting equipment typically includes a dust extraction system to maintain a clean cutting environment. Existing dust extraction systems generally place the exhaust ducts on both sides of the cutting area inside the machine tool body. However, the cross-sectional size of the exhaust ducts is limited by the machine tool body, resulting in low dust extraction efficiency. Utility Model Content

[0004] The technical problem to be solved by the embodiments of this application is the low dust removal efficiency of existing laser cutting machine tools.

[0005] To address the aforementioned technical problems, this application provides a laser cutting machine tool, which employs the following technical solution:

[0006] The laser cutting machine tool includes:

[0007] The bed frame includes an inner support plate, an outer support plate, and a bottom plate. The outer support plate is fixed to the bottom plate. A reinforcing rib is provided between the inner support plate and the outer support plate. The inner support plate and the outer support plate are respectively fixedly connected to the reinforcing rib.

[0008] A dust extraction system is installed on the bed frame. The dust extraction system includes a dust extraction pipe. A portion of the dust extraction pipe is embedded inside the bed frame, and the top surface of the dust extraction pipe is fixedly connected to the inner support plate. One side of the dust extraction pipe is fixedly connected to the reinforcing rib. The side of the dust extraction pipe away from the reinforcing rib has an exhaust port that protrudes from the inner support plate.

[0009] Furthermore, the dust extraction system also includes a damper switch mechanism, which is disposed on the side of the dust extraction pipe away from the reinforcing rib.

[0010] The damper opening and closing mechanism includes at least one driving cylinder and a sliding damper plate connected to the driving cylinder. The driving cylinder is fixedly installed on the dust extraction pipe. The sliding damper plate is provided with a damper door. When the damper door is in communication with the exhaust port, the exhaust port is in an open state. When the damper door is offset from the exhaust port, the exhaust port is in a closed state.

[0011] Furthermore, the damper switch mechanism also includes a guide connection assembly, the sliding damper plate is provided with a guide hole, and the guide connection assembly passes through the guide hole and is fixedly connected to the dust extraction pipe.

[0012] Furthermore, the guide connection assembly includes a stepped screw, an elastic element, and a screw washer. The stepped screw passes through the guide hole and is fixedly connected to the dust extraction pipe. The screw washer abuts against the side of the sliding damper plate away from the dust extraction pipe. The two ends of the elastic element abut against the stepped surface of the stepped screw and the side of the screw washer away from the sliding damper plate, respectively.

[0013] Furthermore, a limiting block is provided on the side of the dust extraction pipe near the sliding damper plate. The limiting block is located at the end of the movement path of the sliding damper plate and protrudes from the plane where the sliding damper plate is located.

[0014] Furthermore, the dust extraction system also includes an air duct, with both ends of the air duct installed on the bed. The air duct is connected to two dust extraction pipes respectively located on both sides of the bed. One end of the air duct is connected to an extraction transition piece, and the other end is provided with a sealing plate. The extraction transition piece is located on one side of the bed.

[0015] Furthermore, the cross-section of the dust extraction pipe is rectangular, and the side of the dust extraction pipe with the exhaust port is the long side of the cross-section of the dust extraction pipe.

[0016] Furthermore, the reinforcing rib includes at least two longitudinal stiffeners, a first transverse stiffener, and a second transverse stiffener. The longitudinal stiffeners are fixedly connected to the first transverse stiffener and the second transverse stiffener, and the longitudinal stiffeners, the first transverse stiffener, and the second transverse stiffener are arranged in a grid pattern.

[0017] The longitudinal stiffener, the first transverse stiffener, and the second transverse stiffener are all perpendicular to and fixed to the outer support plate and the inner support plate. The bottom end of at least one of the longitudinal stiffeners is fixedly connected to the bottom plate, and the longitudinal stiffener is fixedly connected to the portion of the dust extraction pipe embedded in the bed body.

[0018] Furthermore, the laser cutting machine tool also includes two worktable drive mechanisms, which are symmetrically arranged on both sides of the bed. Each worktable drive mechanism includes a drive motor, a transmission component, and a mounting bracket. The drive motor and the transmission component are mounted on the bed through the mounting bracket, and the transmission component is connected to the drive motor in a transmission manner.

[0019] Furthermore, the transmission assembly includes a first sprocket, a second sprocket, a transmission chain, and chain guides. The first sprocket and the second sprocket are respectively located at both ends of the bed. The first sprocket is mounted on the bed via the mounting bracket and is connected to the drive motor. The second sprocket is connected to the first sprocket via the transmission chain. At least two chain guides are fixed on the bed and spaced apart. A portion of the transmission chain is located in the guide groove of the chain guide.

[0020] Compared with the prior art, the embodiments of this application have the following main advantages:

[0021] This application embeds a portion of the dust extraction pipe inside the machine bed, with the top surface of the pipe fixedly connected to the inner support plate and one side of the pipe fixedly connected to a reinforcing rib. This allows the force on the inner support plate to be transferred to the dust extraction pipe and the reinforcing rib, preventing deformation of the inner support plate and improving the machine bed's resistance to deformation. Furthermore, this application designs the side of the dust extraction pipe away from the reinforcing rib to protrude from the inner support plate, allowing the portion of the pipe not embedded in the machine bed to protrude beyond its surface. The cross-section of the dust extraction pipe is not limited by the machine bed, increasing its cross-section and thus improving the dust extraction efficiency of the laser cutting machine. Additionally, this application sets the side of the dust extraction pipe with the exhaust port to protrude from the machine bed, allowing the exhaust port to be closer to the laser cutting area, further enhancing the dust extraction effect. Attached Figure Description

[0022] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the laser cutting machine tool provided in Embodiment 1 of this application;

[0024] Figure 2 yes Figure 1 A magnified view of a section at point B in the middle;

[0025] Figure 3 yes Figure 1 The top view of the laser cutting machine shown;

[0026] Figure 4 yes Figure 3 Sectional view at C-C';

[0027] Figure 5 yes Figure 4 A magnified view of a section at point E in the middle;

[0028] Figure 6 yes Figure 3 Sectional view at point D-D';

[0029] Figure 7 yes Figure 6 A magnified view of a section at point F in the middle;

[0030] Figure 8 yes Figure 6 A magnified view of a section at point G in the middle;

[0031] Figure 9 yes Figure 1 The diagram shows the assembly of the bed, dust extraction pipe, and air duct in the laser cutting machine tool.

[0032] Figure 10 yes Figure 9 Internal diagram of the middle bed;

[0033] Figure 11 yes Figure 10 A magnified view of a section at point H in the middle;

[0034] Figure 12 yes Figure 9 A top view of the bed, dust extraction duct, and air duct shown;

[0035] Figure 13 yes Figure 12 Sectional view of I-I';

[0036] Figure 14 yes Figure 13 A magnified view of a section at point J;

[0037] Figure 15 yes Figure 1 The diagram shows the assembly of the dust extraction pipe and air duct in the laser cutting machine tool.

[0038] Figure label:

[0039] 100. Bed frame; 110. Inner support plate; 120. Outer support plate; 130. Base plate; 140. Reinforcing rib; 141. Longitudinal stiffener; 142. First transverse stiffener; 143. Second transverse stiffener; 150. Top plate; 160. Guide rail seat; 170. Angle steel for worktable;

[0040] 200. Dust extraction system; 210. Dust extraction duct; 211. Exhaust vent; 220. Damper opening / closing mechanism; 221. Drive cylinder; 222. Sliding damper plate; 2221. Air door; 2222. Guide hole; 223. Guide connection assembly; 2231. Step screw; 2232. Elastic element; 2233. Screw washer; 224. Cylinder cover plate; 230. Cable guide; 240. Limiting block; 250. Duct duct; 260. Exhaust transition component; 270. Sealing plate; 280. Baffle;

[0041] 300. Workbench drive mechanism; 310. Drive motor; 320. Transmission assembly; 321. First sprocket; 322. Second sprocket; 323. Transmission chain; 324. Chain guide; 330. Mounting bracket; 340. Sprocket mounting component; 350. Sprocket adjusting plate; 360. First adjusting screw;

[0042] A. Laser-cut area. Detailed Implementation

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0044] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0045] See Figures 1 to 15 This application provides a laser cutting machine tool. The laser cutting machine tool includes a bed 100 and a dust extraction system 200. The bed 100 includes an inner support plate 110, an outer support plate 120, and a base plate 130. The outer support plate 120 is fixed to the base plate 130. A reinforcing rib 140 is provided between the inner support plate 110 and the outer support plate 120, and the inner support plate 110 and the outer support plate 120 are respectively fixedly connected to the reinforcing rib 140.

[0046] The dust extraction system 200 is installed on the bed frame 100. The dust extraction system 200 includes a dust extraction pipe 210. A part of the dust extraction pipe 210 is embedded inside the bed frame 100, and the top surface of the dust extraction pipe 210 is fixedly connected to the inner support plate 110. One side of the dust extraction pipe 210 is fixedly connected to the reinforcing rib 140. The side of the dust extraction pipe 210 away from the reinforcing rib 140 is provided with an exhaust port 211 and protrudes from the inner support plate 110.

[0047] This application embeds a portion of the dust extraction pipe 210 inside the bed body 100, with the top surface of the dust extraction pipe 210 fixedly connected to the inner support plate 110 and one side of the dust extraction pipe 210 fixedly connected to the reinforcing rib 140. This allows the force on the inner support plate 110 to be transmitted to the dust extraction pipe 210 and the reinforcing rib 140, preventing the inner support plate 110 from deforming under stress and improving the deformation resistance of the bed body 100. Furthermore, this application sets the side of the dust extraction pipe 210 away from the reinforcing rib 140 to protrude from the inner support plate 110, allowing the portion of the dust extraction pipe 210 not embedded in the bed body 100 to protrude beyond the bed body 100. The cross-section of the dust extraction pipe 210 is not limited by the bed body 100, increasing the cross-section of the dust extraction pipe 210 to improve dust extraction efficiency. Additionally, this application sets the side of the dust extraction pipe 210 with the exhaust port 211 to protrude from the side of the bed body 100, allowing the exhaust port 211 to be closer to the laser cutting area A, thus improving the dust extraction effect.

[0048] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0049] Embodiment 1 of the laser cutting machine tool of this application

[0050] See Figure 1 , Figure 3 , Figure 10 , Figures 11 to 15 As shown, the laser cutting machine tool provided in this embodiment includes: a bed 100 and a dust extraction system 200.

[0051] The bed body 100 includes an inner support plate 110, an outer support plate 120, and a base plate 130. The outer support plate 120 is fixed on the base plate 130. A reinforcing rib 140 is provided between the inner support plate 110 and the outer support plate 120. The inner support plate 110 and the outer support plate 120 are respectively fixedly connected to the reinforcing rib 140.

[0052] The dust extraction system 200 is installed on the bed frame 100. The dust extraction system 200 includes a dust extraction pipe 210. A part of the dust extraction pipe 210 is embedded inside the bed frame 100, and the top surface of the dust extraction pipe 210 is fixedly connected to the inner support plate 110. One side of the dust extraction pipe 210 is fixedly connected to the reinforcing rib 140. The side of the dust extraction pipe 210 away from the reinforcing rib 140 is provided with an exhaust port 211 and protrudes from the inner support plate 110.

[0053] In this embodiment, a laser cutting area A is provided in the middle of the laser cutting machine tool. After the cutting table carries the material to be processed, it enters the laser cutting area A and performs laser cutting processing. The laser cutting area A is provided in the middle of the machine tool, and the bed 100 is used to carry and support the cutting table entering the laser cutting area A. Specifically, the inner support plate 110, outer support plate 120, base plate 130, and reinforcing ribs 140 are used to disperse the external forces on the bed 100, improve the rigidity of the bed 100, and prevent the bed 100 from deforming under stress.

[0054] In this embodiment, the inner support plate 110 refers to the support plate on the side of the bed 100 closest to the laser cutting area A, and the outer support plate 120 refers to the support plate on the side of the bed 100 furthest from the laser cutting area A.

[0055] The existing dust extraction system 200 completely embeds the dust extraction pipe 210 into the bed 100. Therefore, the cross-sectional size of the dust extraction pipe 210 is limited by the cross-sectional size of the bed 100. If the cross-section of the dust extraction pipe 210 is too large, it will increase the hollow part inside the bed 100, thereby affecting the rigidity of the bed 100 and making it prone to deformation under stress. Therefore, in order to ensure that the bed 100 has a high resistance to deformation, the existing laser cutting machine tool can only reduce the cross-section of the dust extraction pipe 210. However, the cross-section of the dust extraction pipe 210 is directly related to the dust extraction efficiency of the dust extraction system 200. The design of the dust extraction pipe 210 in the existing dust extraction system 200 makes it difficult to improve the dust extraction efficiency of the existing laser cutting machine tool's dust extraction system 200.

[0056] This application embeds a portion of the dust extraction pipe 210 inside the bed body 100, with the top surface of the dust extraction pipe 210 fixedly connected to the inner support plate 110 and one side of the dust extraction pipe 210 fixedly connected to the reinforcing rib 140. This allows the force on the inner support plate 110 to be transmitted to the dust extraction pipe 210 and the reinforcing rib 140, preventing the inner support plate 110 from deforming under stress and improving the deformation resistance of the bed body 100. Furthermore, this application sets the side of the dust extraction pipe 210 away from the reinforcing rib 140 to protrude from the inner support plate 110, allowing the portion of the dust extraction pipe 210 not embedded in the bed body 100 to protrude from the bed body 100. The cross-section of the dust extraction pipe 210 is less restricted by the bed body 100, and the dust extraction efficiency can be improved by increasing the cross-section of the dust extraction pipe 210. Furthermore, this application designs the side of the dust extraction duct 210 with the exhaust port 211 to protrude from the side of the bed 100, which allows the exhaust port 211 to be closer to the laser cutting area A, thereby improving the dust extraction effect. Both sides of the dust extraction duct 210 in this application are offset from the inner support surface, which increases the exhaust cross-section while also forming a stable structure, preventing deformation of the bed 100 and reducing the weight of the bed 100.

[0057] In this embodiment, the inner support plate 110 is welded to the top surface of the dust extraction pipe 210, which facilitates the welding process inside the machine tool.

[0058] In this embodiment, the bed body 100 also includes a top plate 150 and a guide rail seat 160 disposed on the top plate 150 (see 12 to 160). Figure 14 The top plate 150 is welded to the top of the inner support plate 110 and the outer support plate 120. The inner support plate 110, the outer support plate 120, and the top plate 150 together form a hollow inner cavity, in which the reinforcing rib 140 is disposed. The guide rail seat 160 is fixed to the side of the top plate 150 away from the inner support plate 110, for allowing the cutting worktable to enter the laser cutting area A. The weight of the cutting worktable on the guide rail seat 160 is applied to the top plate 150 and distributed to the inner support plate 110, the outer support plate 120, and the reinforcing rib 140, with a portion distributed to the exhaust duct, and finally transferred to the bottom plate 130.

[0059] See Figure 4 , Figure 5 and Figure 14 In this embodiment, the dust extraction system 200 also includes a damper switch mechanism 220, which is disposed on the side of the dust extraction pipe 210 away from the reinforcing rib 140.

[0060] See Figure 1 , Figure 2 , Figure 5 and Figure 15The damper switch mechanism 220 includes at least one drive cylinder 221 and a sliding damper plate 222 connected to the drive cylinder 221. The drive cylinder 221 is fixedly installed on the dust extraction pipe 210. The sliding damper plate 222 is provided with a damper door 2221. When the damper door 2221 is connected to the exhaust port 211, the exhaust port 211 is in the open state. When the damper door 2221 is offset from the exhaust port 211, the exhaust port 211 is in the closed state.

[0061] Specifically, in this embodiment, the sliding damper plate 222 is pushed and pulled by the driving cylinder 221 to open and close the exhaust port 211 of the dust extraction duct 210, which is beneficial for controlling the exhaust position and exhaust effect of the dust extraction system 200. When it is necessary to open the exhaust port 211, the sliding damper plate 222 moves to a position where the damper door 2221 is aligned with the exhaust port 211 under the drive of the driving cylinder 221, so that the damper door 2221 on the sliding damper plate 222 is aligned with the exhaust port 211 on the dust extraction duct 210, thereby allowing the interior of the dust extraction duct 210 to communicate with the external environment through the exhaust port 211; when it is necessary to close the exhaust port 211, the sliding damper plate 222 moves to a position where the damper door 2221 is offset from the exhaust port 211 under the drive of the driving cylinder 221, blocking the exhaust port 211 on the dust extraction duct 210, thus isolating the interior of the dust extraction duct 210 from the external environment.

[0062] In this embodiment, the air pipe of the driving cylinder 221 and the solenoid valve are both installed in the bed 100 through the cable conduit 230 in the dust extraction pipe 210, making the structure of the laser cutting machine tool simpler and combining practicality and aesthetics.

[0063] See Figure 1 , Figure 2 , Figure 4 and Figure 5 In this embodiment, the damper switch mechanism 220 further includes a guide connection component 223. The sliding damper plate 222 is provided with a guide hole 2222. The guide connection component 223 passes through the guide hole 2222 and is fixedly connected to the dust extraction pipe 210.

[0064] Specifically, the guide connection assembly 223 is used to movably connect the sliding damper plate 222 to the dust extraction duct 210, and cooperates with the guide hole 2222 to enable the sliding damper plate 222 to slide along the extension direction of the guide hole 2222, thereby improving the accuracy and efficiency of opening and closing the exhaust port 211.

[0065] In this embodiment, the guide connection component 223 and the guide hole 2222 of the sliding damper plate 222 can be matched to guide the sliding trajectory of the sliding damper plate 222. The structure is simple, easy to install, and convenient to maintain and replace.

[0066] In this embodiment, the guide connection assembly 223 includes a stepped screw 2231, an elastic element 2232, and a screw washer 2233. The stepped screw 2231 passes through the guide hole 2222 and is fixedly connected to the dust extraction pipe 210. The screw washer 2233 abuts against the side of the sliding damper plate 222 away from the dust extraction pipe 210. The two ends of the elastic element 2232 abut against the stepped surface of the stepped screw 2231 and the side of the screw washer 2233 away from the sliding damper plate 222, respectively.

[0067] Specifically, the engagement of the stepped screw 2231, the elastic element 2232, and the screw washer 2233 allows the sliding damper plate 222 to be pressed tightly against it, ensuring a close fit between the sliding damper plate 222 and the dust extraction duct 210 while simultaneously allowing it to slide relative to the duct, thus improving the sealing effect when the exhaust port 211 is closed. The stepped screw 2231 can move relative to the sliding damper plate 222 within the guide hole 2222, thereby controlling the movement trajectory of the sliding damper plate 222. When the drive cylinder 221 pushes or pulls the sliding damper plate 222, the sliding damper plate 222 can slide along the extension direction of the guide hole 2222.

[0068] In this embodiment, the elastic element 2232 is a spring. One end of the spring abuts against the stepped surface of the stepped screw 2231, and the other end abuts against the washer. The spring applies elastic force to the side of the sliding damper plate 222 away from the dust extraction pipe 210, thereby enabling the sliding damper plate 222 to fit tightly against the dust extraction pipe 210 and improving the airtightness of the dust extraction system 200.

[0069] In this embodiment, a limiting block 240 is provided on the side of the dust extraction pipe 210 near the sliding damper plate 222. The limiting block 240 is located at the end of the movement path of the sliding damper plate 222 and protrudes out of the plane where the sliding damper plate 222 is located.

[0070] Specifically, the limiting block 240 is used to restrict the movement of the sliding damper plate 222 to prevent excessive interference between the guide hole 2222 of the sliding damper plate 222 and the stepped screw 2231, which could cause the stepped screw 2231 to be damaged.

[0071] See Figure 1 , Figures 9 to 15 In this embodiment, the dust extraction system 200 also includes an air duct 250. Both ends of the air duct 250 are installed on the bed 100. The air duct 250 is connected to two dust extraction pipes 210 respectively arranged on both sides of the bed 100. One end of the air duct 250 is connected to an exhaust transition piece 260, and the other end is provided with a sealing plate 270. The exhaust transition piece 260 is located on one side of the bed 100.

[0072] Specifically, the dust extraction pipes 210 located on both sides of the bed 100 are connected to the air duct 250. When the dust extraction system 200 is working, air enters the dust extraction pipe 210 from the exhaust port 211 and then enters the air duct 250, and is discharged to the external dust removal equipment through the exhaust transition piece 260. In this application, the exhaust transition piece is set at the end of the air duct 250 and located on one side of the bed 100. That is, the exhaust direction of the exhaust transition piece is the same as the airflow direction in the air duct 250, so that the air passes through only one corner (the corner when entering the air duct 250 from the dust extraction pipe 210) during its journey from entering the dust extraction pipes 210 on both sides to being discharged to the dust removal equipment. This reduces the adverse effects of the corner on the airflow and velocity, thereby improving the dust extraction effect. Specifically, the positions of the sealing plate 270 and the exhaust transition piece 260 can be interchanged according to the user's needs.

[0073] In this embodiment, the cross-section of the dust extraction pipe 210 is rectangular, and the side of the dust extraction pipe 210 with the exhaust port 211 is the long side of the cross-section of the dust extraction pipe 210.

[0074] Specifically, by setting the long side of the cross-section of the dust extraction pipe 210 as the side on which the exhaust port 211 is opened, the area of ​​the dust extraction pipe 210 facing the laser cutting area A can be increased, thereby increasing the area of ​​the exhaust port 211 and effectively improving the dust extraction efficiency.

[0075] In this embodiment, the cross-section of the dust extraction pipe 210 is 250mm long and 200mm wide.

[0076] See Figure 1 , Figure 2 , Figure 4 and Figure 5 In this embodiment, the damper switch mechanism 220 further includes a cylinder cover plate 224, which is mounted on the bed 100 and covers the outside of the drive cylinder 221 to protect it. The drive cylinder 221 in this embodiment is a thin cylinder, which reduces the space occupied by the drive cylinder 221.

[0077] In this embodiment, the dust extraction system 200 further includes a baffle 280, which is fixed to the bed 100 and located above the damper switch mechanism 220. At least two damper switch mechanisms 220 are provided on one dust extraction duct 210 in this embodiment, wherein each drive cylinder 221 independently controls a sliding damper plate 222. Zoned dust extraction control is achieved through the arrangement of the baffle 280 and the cylinder cover plate 224.

[0078] In this embodiment, the sliding damper plate 222 is made of sheet metal material bent at 90 degrees, and the bent part of the sliding damper plate 222 is connected to the drive cylinder 221.

[0079] See Figures 10 to 15 In this embodiment, the reinforcing rib 140 includes at least two longitudinal stiffeners 141, a first transverse stiffener 142, and a second transverse stiffener 143. The longitudinal stiffeners 141 are fixedly connected to the first transverse stiffeners 142 and the second transverse stiffeners 143, and the longitudinal stiffeners 141, the first transverse stiffeners 142, and the second transverse stiffeners 143 are arranged in a grid pattern.

[0080] The longitudinal stiffener 141, the first transverse stiffener 142, and the second transverse stiffener 143 are all perpendicular to and fixed to the outer support plate 120 and the inner support plate 110. The bottom end of at least one longitudinal stiffener 141 is fixedly connected to the bottom plate 130, and the longitudinal stiffener 141 is fixedly connected to the portion of the dust extraction pipe 210 embedded in the bed body 100.

[0081] Specifically, the first transverse stiffener 142 and the second transverse stiffener 143 are arranged parallel vertically, and the longitudinal stiffener 141 is perpendicular to the first and second transverse stiffeners and fixed by welding, thus forming a grid-arranged reinforcing rib 140. The use of crisscrossing welded reinforcing ribs 140 increases the deformation resistance of the bed 100, preventing deformation of the bed 100 under stress after the cutting table enters it, achieving an anti-torsional effect, and thus forming a stable and reliable bed 100 structure. The longitudinal stiffener 141 is welded to the dust extraction pipe 210, preventing deformation of the dust extraction pipe 210 under stress.

[0082] In this embodiment, the inner support plate 110 is also provided with a workbench angle steel 170 on the side away from the reinforcing rib 140. The extension direction of the workbench angle steel 170 is parallel to the extension direction of the first transverse stiffener 142, and the distance between the workbench angle steel 170 and the bottom plate 130 is different from the distance between the first transverse stiffener 142 and the bottom plate 130, and also different from the distance between the workbench angle steel 170 and the bottom plate 130 of the second transverse stiffener 143.

[0083] Specifically, the workbench angle steel 170 is used to support the cutting workbench. The extension direction of the workbench angle steel 170 is parallel to the extension direction of the first transverse stiffener 142. The distance between the workbench angle steel 170 and the bottom plate 130 is different from the distance between the first transverse stiffener 142 and the bottom plate 130, and also different from the distance between the workbench angle steel 170 and the bottom plate 130 of the second transverse stiffener 143. This makes the workbench angle steel 170 parallel and staggered with the first transverse stiffener 142 and the second transverse stiffener 143, further improving the torsional resistance of the bed 100.

[0084] In this embodiment, adjacent longitudinal stiffeners 141 are evenly spaced, and the distance between two adjacent longitudinal stiffeners 141 ranges from 300mm to 400mm. In this embodiment, the distance between two adjacent longitudinal stiffeners 141 is 355mm.

[0085] In this embodiment, at least two base plates 130 are evenly spaced, and the distance between two adjacent base plates 130 is 200mm.

[0086] See Figure 1 , Figure 3 , Figure 4 , Figures 6 to 8 In this embodiment, the laser cutting machine tool also includes two worktable drive mechanisms 300. The two worktable drive mechanisms 300 are symmetrically arranged on both sides of the bed 100. Each worktable drive mechanism 300 includes a drive motor 310, a transmission component 320, and a mounting bracket 330. The drive motor 310 and the transmission component 320 are mounted on the bed 100 through the mounting bracket 330. The transmission component 320 is connected to the drive motor 310 in a transmission manner.

[0087] This embodiment, by setting two worktable drive mechanisms 300, enables the laser cutting machine tool to drive two cutting worktables to operate independently, allowing the two worktables to enter and exit the laser cutting area A simultaneously. This solves the problem that existing two cutting worktables can only move alternately and cannot enter and exit simultaneously, facilitating the user's cleaning of waste in the laser cutting area A and maintenance of the laser cutting machine tool. This application symmetrically arranges the two worktable drive mechanisms 300 on both sides of the bed 100, giving the laser cutting machine tool higher stability.

[0088] In this embodiment, the transmission assembly 320 includes a first sprocket 321, a second sprocket 322, a transmission chain 323, and a chain guide 324. The first sprocket 321 and the second sprocket 322 are located at opposite ends of the bed 100. The first sprocket 321 is mounted on the bed 100 via a mounting bracket 330 and is connected to a drive motor 310. The second sprocket 322 is connected to the first sprocket 321 via the transmission chain 323. At least two chain guides 324 are fixed on the bed 100 and spaced apart. A portion of the transmission chain 323 is located in the guide groove of the chain guide 324.

[0089] Specifically, the drive motor 310 and the reducer flange are both mounted on the end of the bed 100 via the mounting bracket 330. The drive motor 310 drives the first sprocket 321 to rotate, thereby driving the transmission chain 323 and the second sprocket 322 to rotate. The transmission chain 323 drives the cutting table to enter or exit the laser cutting area A.

[0090] The chain guide 324 is evenly distributed on the bed 100, which can prevent the transmission chain 323 from sagging or shaking, and improve the stability and reliability of the machine tool during operation.

[0091] The workbench drive mechanism 300 also includes a sprocket mounting part 340, a sprocket adjusting plate 350, and a first adjusting screw 360. The sprocket adjusting plate 350 is mounted on the bed 100. The second sprocket 322 is mounted on the sprocket adjusting plate 350 through the sprocket mounting part 340 and the first adjusting screw 360, so that the position of the second sprocket 322 is adjustable, which facilitates the adjustment of the tension of the transmission chain 323.

[0092] The worktable drive mechanism 300 also includes an adjusting block and a second adjusting screw, and the mounting bracket 330 is mounted on the bed 100 via the adjusting block and the second adjusting screw.

[0093] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A laser cutting machine tool, characterized in that, include: The bed frame includes an inner support plate, an outer support plate, and a bottom plate. The outer support plate is fixed to the bottom plate. A reinforcing rib is provided between the inner support plate and the outer support plate. The inner support plate and the outer support plate are respectively fixedly connected to the reinforcing rib. A dust extraction system is installed on the bed frame. The dust extraction system includes a dust extraction pipe. A portion of the dust extraction pipe is embedded inside the bed frame, and the top surface of the dust extraction pipe is fixedly connected to the inner support plate. One side of the dust extraction pipe is fixedly connected to the reinforcing rib. The side of the dust extraction pipe away from the reinforcing rib has an exhaust port that protrudes from the inner support plate.

2. The laser cutting machine of claim 1, wherein, The dust extraction system also includes a damper switch mechanism, which is disposed on the side of the dust extraction pipe away from the reinforcing rib. The damper opening and closing mechanism includes at least one driving cylinder and a sliding damper plate connected to the driving cylinder. The driving cylinder is fixedly installed on the dust extraction pipe. The sliding damper plate is provided with a damper door. When the damper door is in communication with the exhaust port, the exhaust port is in an open state. When the damper door is offset from the exhaust port, the exhaust port is in a closed state.

3. The laser cutting machine of claim 2, wherein, The damper opening and closing mechanism also includes a guide connection assembly. The sliding damper plate is provided with a guide hole, and the guide connection assembly passes through the guide hole and is fixedly connected to the dust extraction pipe.

4. The laser cutting machine of claim 3, wherein, The guide connection assembly includes a stepped screw, an elastic element, and a screw washer. The stepped screw passes through the guide hole and is fixedly connected to the dust extraction pipe. The screw washer abuts against the side of the sliding damper plate away from the dust extraction pipe. The two ends of the elastic element abut against the stepped surface of the stepped screw and the side of the screw washer away from the sliding damper plate, respectively.

5. The laser cutting machine of claim 2, wherein, The dust extraction pipe is also provided with a limiting block on the side near the sliding damper plate. The limiting block is located at the end of the movement path of the sliding damper plate and protrudes out of the plane where the sliding damper plate is located.

6. The laser cutting machine of claim 1, wherein, The dust extraction system also includes an air duct, with both ends of the air duct installed on the bed. The air duct is connected to two dust extraction pipes respectively located on both sides of the bed. One end of the air duct is connected to an extraction transition piece, and the other end is provided with a sealing plate. The extraction transition piece is located on one side of the bed.

7. The laser cutting machine of claim 1, wherein, The dust extraction pipe has a rectangular cross-section, and the side of the dust extraction pipe with the exhaust port is the long side of the cross-section of the dust extraction pipe.

8. The laser cutting machine of claim 1, wherein, The reinforcing rib includes at least two longitudinal stiffeners, a first transverse stiffener, and a second transverse stiffener. The longitudinal stiffeners are fixedly connected to the first transverse stiffener and the second transverse stiffener. The longitudinal stiffeners, the first transverse stiffener, and the second transverse stiffener are arranged in a grid pattern. The longitudinal stiffener, the first transverse stiffener, and the second transverse stiffener are all perpendicular to and fixed to the outer support plate and the inner support plate. The bottom end of at least one of the longitudinal stiffeners is fixedly connected to the bottom plate, and the longitudinal stiffener is fixedly connected to the portion of the dust extraction pipe embedded in the bed body.

9. The laser cutting machine of claim 1, wherein, The laser cutting machine tool also includes two worktable drive mechanisms, which are symmetrically arranged on both sides of the bed. Each worktable drive mechanism includes a drive motor, a transmission component, and a mounting bracket. The drive motor and the transmission component are mounted on the bed through the mounting bracket, and the transmission component is connected to the drive motor in a transmission manner.

10. The laser cutting machine of claim 9, wherein, The transmission assembly includes a first sprocket, a second sprocket, a transmission chain, and chain guides. The first sprocket and the second sprocket are located at opposite ends of the bed. The first sprocket is mounted on the bed via the mounting bracket and is connected to the drive motor. The second sprocket is connected to the first sprocket via the transmission chain. At least two chain guides are fixed to the bed and spaced apart. A portion of the transmission chain is located within the guide groove of the chain guide.

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