Laser cutting machine and system with bed body split exchange platform

Abstract

A lathe bed comprises a front lathe bed body and a rear lathe bed body which are connected, a laser cutting head is connected with the lathe bed body and can move in the length direction and the width direction of the lathe bed body, a machining table top is connected with the lathe bed body in a sliding mode, the machining table top comprises an upper machining table top body and a lower machining table top body, and the upper machining table top body and the lower machining table top body are connected in a sliding mode. A driving motor is arranged on the lathe bed, an output shaft of the driving motor is connected with two first dragging chain wheels through a power transmission assembly, the two first dragging chain wheels are connected with a second dragging chain wheel through a table board dragging chain, and the first dragging chain wheels and the second dragging chain wheel are both rotationally connected with the lathe bed. The two ends of the upper machining table top and the two ends of the lower machining table top are correspondingly connected with the two table top dragging chains respectively. The split type lathe bed is adopted, the two sides of the machining table top can be synchronously driven through the same driving motor, the transportation cost is reduced, the operation stability of the machining table top is improved, and regional dust collection can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of laser cutting, in particular to a laser cutting machine and a system for a bed split exchange platform. Background Technique

[0002] The statements in this part only provide background technical information related to the utility model, and do not necessarily constitute prior art.

[0003] With the popularization of plate laser cutting machines, due to their fast, stable and efficient cutting effects, they have been gradually widely used in the processing of various plates. With the maturity of laser technology, more and more large-size, high-power and large-tonnage exchange platform laser cutting machines have emerged. The existing such cutting machines mainly adopt two types of beds: an integral welded bed for plates or pipes (hereinafter referred to as an integral welded bed) or a split bed for rails without a middle cross brace for fixation (hereinafter referred to as a split bed without a cross brace).

[0004] The integral welded bed is heavy, large in volume, difficult to hoist, inconvenient for packing and shipping and on-site installation, and there is a problem that the bed body deforms during hoisting, affecting the accuracy. Due to its large volume, such a bed has low space passability and high transportation costs.

[0005] Although the split bed without a cross brace can make up for the shortcomings of the integral welded bed, because there is no middle cross brace for fixation, the two side bed body components are relatively independent mechanisms. This also makes the equipment debugging more cumbersome, the accuracy of the equipment is relatively low and the accuracy retention is poor, and the operation stability of the equipment is relatively low. It is difficult to realize synchronous driving on both sides of the processing table by the same power source for the table drive of the equipment. Most of them use single-side drive or independent drive on both sides, which leads to unbalanced stress on the table and unstable operation. And it is difficult to realize simultaneous dust suction on both sides and regional dust suction for the dust suction device of the equipment, and the dust suction effect is relatively poor, which will cause great harm to the health of equipment operators and environmental protection. Summary of the Invention

[0006] In order to solve the above problems, the utility model provides a laser cutting machine and a system for a bed split exchange platform, which adopts a split bed body, and can synchronously drive both sides of the processing table by the same driving motor, reduce the transportation cost, improve the operation stability of the processing table, and can realize regional dust suction.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme:

[0008] In a first aspect, a laser cutting machine with a split bed exchange platform is proposed, which includes a bed, a laser cutting head, and a processing table. The bed includes a front bed and a rear bed connected to each other. The laser cutting head is connected to the bed and can move along the length and width directions of the bed. The processing table is slidably connected to the bed. The processing table includes an upper processing table and a lower processing table. A driving motor is provided on the bed. The output shaft of the driving motor is connected to two first dragging sprockets through a power transmission component. The two first dragging sprockets are respectively connected to a second dragging sprocket through table dragging chains. Both the first dragging sprocket and the second dragging sprocket are rotatably connected to the bed. The two ends of the upper processing table and the lower processing table are respectively connected to the two table dragging chains correspondingly.

[0009] Furthermore, both the front bed and the rear bed include a left beam and a right beam arranged relatively parallel to each other, and bed cross braces are connected between the left beam and the right beam.

[0010] Furthermore, a dragging chain guide rail is provided on the bed. The table dragging chain is located within the dragging chain guide rail and can move along the dragging chain guide rail.

[0011] Furthermore, the power transmission component includes a driving shaft and two chain drive components. Each chain drive component includes a driving sprocket, a driving chain, and a driven sprocket. The driven sprocket is fixed on a rotating shaft. The driving sprocket is connected to the driven sprocket through the driving chain. The two rotating shafts are rotatably connected to the bed. The two driving sprockets are respectively fixed at both ends of the driving shaft. The two first dragging sprockets are correspondingly connected to the two rotating shafts. The driving shaft is connected to the output shaft of the driving motor.

[0012] Furthermore, an upper processing table track and a lower processing table track are provided on the bed; the upper processing table is slidably connected to the upper processing table track, and the lower processing table is slidably connected to the lower processing table track.

[0013] Furthermore, the laser cutting head is connected to a cross beam and can move along the length direction of the cross beam. The cross beam spans across the bed and can move along the length direction of the bed.

[0014] Furthermore, a first gear is rotatably connected to the cross beam. A first motor is connected to the first gear. The first gear is meshed with a first rack fixed on the bed. A second rack is also provided on the cross beam. The second rack is meshed with a second gear. The second gear is rotatably connected to the laser cutting head. A second motor is connected to the second gear.

[0015] Further, air ducts are respectively arranged on both sides of the bed body. A plurality of dust suction ports are arranged on one side of each air duct facing the inside of the bed body. A dust suction mechanism is arranged at each dust suction port. The dust suction mechanism includes a cylinder, an opening and closing plate, and an outer fixing plate. A ventilation port is arranged on the opening and closing plate. The opening and closing plate is fixed at the dust suction port. The cylinder shaft is connected to the outer fixing plate. The opening and closing plate is connected to a guide rod. The outer fixing plate is slidably connected to the guide rod. The telescopic movement of the cylinder can drive the outer fixing plate to move along the guide rod in a direction close to or away from the opening and closing plate, so as to close or open the ventilation port.

[0016] Further, a protective cover is arranged outside the front bed body.

[0017] In a second aspect, a laser cutting system for a bed body split exchange platform is proposed, including a laser cutting machine for a bed body split exchange platform proposed in the first aspect.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0019] 1. In the present utility model, the output shaft of the driving motor is connected to two first driving sprockets through a power transmission component. The two first driving sprockets are respectively connected to a second driving sprocket through a table driving chain. The two ends of the upper processing table and the lower processing table are respectively connected to the two table driving chains correspondingly, so as to realize the synchronous driving of both sides of the table by the same driving motor, ensure the balanced force at both ends of the table, and ensure the smooth operation of the table.

[0020] 2. In the present utility model, a driving chain guide rail is further arranged on the bed body. The table driving chain is located in the driving chain guide rail and can move along the driving chain guide rail, thus ensuring the stable operation of the table driving chain and further ensuring the stable movement of the processing table.

[0021] 3. In the present utility model, a bed body cross brace is also connected between the left beam and the right beam. The left beam and the right beam are connected together through the bed body cross brace, so that the bed body becomes an integral bed body. The mechanical stability of the equipment is relatively high, the installation and commissioning are relatively simple, and the accuracy of the equipment is well maintained.

[0022] 4. In the present utility model, an outer fixing plate that can move with the telescopic movement of the cylinder is arranged at the dust suction port, so that the dust suction port can be opened or closed, realizing zoned dust suction while improving the dust suction effect.

[0023] The advantages of the additional aspects of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0024] The specification drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application.

[0025] Figure 1 Figure 1 shows the overall structural diagram of the laser cutting machine disclosed in Embodiment 1;

[0026] Figure 2 Figure 2 shows the overall exploded view of the laser cutting machine disclosed in Embodiment 1;

[0027] Figure 3 Figure 3 shows the structural diagram of the laser cutting machine without the protective cover disclosed in Embodiment 1;

[0028] Figure 4 Figure 4 shows the structural diagram of the bed component disclosed in Embodiment 1;

[0029] Figure 5 Figure 5 shows the structural diagram of the exchange platform drive component disclosed in Embodiment 1;

[0030] Figure 6 Figure 6 shows the structural diagram of the dust collection mechanism disclosed in Embodiment 1;

[0031] Figure 7 Figure 7 shows the layout diagram of the dust collection mechanism disclosed in Embodiment 1.

[0032] Wherein: 1. Left protective cover; 2. Front protective cover; 3. Right protective cover; 4. Rear protective cover; 5. Upper protective cover; 6. Front bed; 7. Rear bed; 8. Crossbeam component; 9. Laser cutting head; 10. Upper processing table; 11. Lower processing table; 12. Exchange platform drive component; 13. Dust collection mechanism; 14. Rear top of the table; 15. Front positioning of the table; 6.1. Front left beam; 6.2. Front right beam; 6.3. Front bed cross brace A; 6.4. Front bed cross brace B; 6.5. Front bed cross brace C; 6.6. Front bed cross brace D; 6.7. First rack; 6.8. Guide rail slider; 6.9. Drag chain guide rail; 6.10. Upper processing table track; 6.11. Lower processing table track; 7.1. Rear bed cross brace; 7.2. Rear left beam; 7.3. Rear right beam; 7.4. Upper processing table track; 7.5. Lower processing table track; 12.1. Drive motor; 12.2. Drive shaft; 12.3. Drive sprocket; 12.4. Tensioning sprocket; 12.5. Driven sprocket; 12.6. First drag sprocket; 12.7. Table drag chain; 12.8. Second drag sprocket; 13.1. Cylinder; 13.2. Cylinder rod protection; 13.3. Guide rod; 13.4. Outer fixing plate; 13.5. Opening and closing plate. Detailed implementation manners

[0033] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application pertains.

[0035] In the present utility model, terms such as "fixed connection", "connected", "connection" etc. should be understood in a broad sense, which may mean a fixed connection, an integral connection or a detachable connection; it may be directly connected or indirectly connected through an intermediate medium. For those relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present utility model can be determined according to specific circumstances, and it should not be construed as a limitation to the present utility model.

[0036] Without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0037] Embodiment 1

[0038] In this embodiment, a laser cutting machine with a split exchange platform for the bed body is disclosed. As Figures 1-7 shown, it includes a bed body, a laser cutting head and a processing table. The bed body includes a front bed body 6 and a rear bed body 7 which are connected. The laser cutting head is connected to the bed body and can move along the length and width directions of the bed body. The processing table is slidably connected to the bed body. The processing table includes an upper processing table 10 and a lower processing table 11. A driving motor 12.1 is arranged on the bed body. The output shaft of the driving motor 12.1 is connected to two first dragging sprockets 12.6 through a power transmission component. The two first dragging sprockets 12.6 are respectively connected to a second dragging sprocket 12.8 through a table dragging chain 12.7. Both the first dragging sprocket 12.6 and the second dragging sprocket 12.8 are rotatably connected to the bed body. The two ends of the upper processing table 10 and the lower processing table 11 are respectively correspondingly connected to the two table dragging chains 12.7.

[0039] A detailed description is given to a laser cutting machine with a split exchange platform for the bed body disclosed in this embodiment. A laser cutting machine with a split exchange platform for the bed body disclosed in this embodiment includes a bed body, a protective cover, a processing table, a crossbeam component 8, a laser cutting head 9, an exchange platform driving component 12, a dust suction mechanism 13, a rear table top tightener 14 and a front table top positioner 15. Among them, the bed body adopts a split bed body, including a front bed body 6 and a rear bed body 7. The front bed body 6 and the rear bed body 7 are fixedly connected by bolts, and a track is lapped at the connection of the front bed body 6 and the rear bed body 7 to form a split bed body.

[0040] As Figure 4 shown, both the front bed body 6 and the rear bed body 7 include a left beam and a right beam which are arranged relatively parallel, and a bed body cross brace is connected between the left beam and the right beam.

[0041] Specifically, the front bed 6 includes a front left beam 6.1, a front right beam 6.2, a front bed cross brace A 6.3, a front bed cross brace B 6.4, a front bed cross brace C 6.5, and a front bed cross brace D 6.6. The front left beam 6.1 and the front right beam 6.2 are opposite and parallel to each other. Both ends of the front bed cross brace A 6.3, the front bed cross brace B 6.4, the front bed cross brace C 6.5, and the front bed cross brace D 6.6 are connected to the front left beam 6.1 and the front right beam 6.2 respectively.

[0042] The rear bed 7 includes a rear bed cross brace 7.1, a rear left beam 7.2, and a rear right beam 7.3. The rear left beam 7.2 and the rear right beam 7.3 are opposite and parallel to each other. Both ends of the rear bed cross brace 7.1 are connected to the rear left beam 7.2 and the rear right beam 7.3 respectively.

[0043] Preferably, between the front bed cross brace A 6.3, the front bed cross brace B 6.4, the front bed cross brace C 6.5, the front bed cross brace D 6.6 and the front left beam 6.1 and the front right beam 6.2, and between the rear bed cross brace 7.1 and the rear left beam 7.2 and the rear right beam 7.3, a bolt connection method is used for connection.

[0044] In this embodiment, through the setting of the bed cross braces, the bed forms an integral bed structure.

[0045] The processing table is slidably connected to the bed, and the processing table can move along the length direction of the bed. The processing table includes an upper processing table 10 and a lower processing table 11. The bed in this embodiment adopts upper and lower double tracks, and an upper processing table track and a lower processing table track are provided on the bed; the upper processing table 10 is slidably connected to the upper processing table track, and the lower processing table 11 is slidably connected to the lower processing table track.

[0046] Specifically, an upper processing table track 6.10 and a lower processing table track 6.11 are provided on the front bed 6, and an upper processing table track 7.4 and a lower processing table track 7.5 are provided on the rear bed components. The upper processing table track 6.10 and the upper processing table track 7.4 are connected to form the upper processing table track of the bed, and the lower processing table track 6.11 and the lower processing table track 7.5 are connected to form the lower processing table track of the bed. When the upper processing table 10 slides onto the upper processing table track 6.10, the lower processing table 11 is located on the lower processing table track 7.5.

[0047] The exchange platform drive component 12 includes a drive motor 12.1, which is fixed to the bed body. The output shaft of the drive motor 12.1 is connected to two first driving sprockets 12.6 through a power transmission component. The two first driving sprockets 12.6 are respectively connected to a second driving sprocket 12.8 through a table driving chain 12.7. Both the first driving sprocket 12.6 and the second driving sprocket 12.8 are rotatably connected to the bed body. The two ends of the upper processing table 10 and the lower processing table 11 are respectively connected to the two table driving chains 12.7 correspondingly. When the drive motor 12.1 is started, the two first driving sprockets 12.6 are driven to rotate through the power transmission component, and then the two table driving chains 12.7 are driven to rotate, and finally the upper processing table 10 and the lower processing table 11 are driven to move along the bed body respectively.

[0048] In this embodiment, in order to ensure the smooth running of the two table driving chains 12.7, a driving chain guide rail is provided on the bed body. The table driving chain is located within the driving chain guide rail and can move along the driving chain guide rail. The driving chain guide rail provides guidance for the movement of the table driving chain to ensure the smooth running of the table driving chain.

[0049] The power transmission component includes a drive shaft and two chain drive components. The chain drive component includes a driving sprocket 12.3, a driving chain, and a driven sprocket 12.5. The driven sprocket 12.5 is fixed to a rotating shaft. The driving sprocket 12.5 is connected to the driven sprocket 12.3 through the driving chain. The two rotating shafts are rotatably connected to the bed body. The two driving sprockets 12.3 are respectively fixed to both ends of the drive shaft. The two first driving sprockets 12.6 are correspondingly connected to the two rotating shafts. The drive shaft is connected to the output shaft of the drive motor. The drive shaft can rotate following the drive motor. The rotation of the drive shaft drives the rotation of the driving sprocket 12.3, and then drives the rotation of the driven sprocket 12.5 through the driving chain. The driven sprocket 12.5 drives the rotating shaft and the first driving sprocket 12.6 to rotate synchronously.

[0050] Preferably, the power transmission component is connected to the front bed body 6, and a driving chain guide rail 6.9 is provided on the front bed body 6. Both the first driving sprocket 12.6 and the second driving sprocket 12.8 are rotatably connected to the front bed body 6.

[0051] In order to ensure the tension of the driving chain, this embodiment also provides a tensioning sprocket 12.4 to tension the driving chain.

[0052] The crossbeam component 8 includes a crossbeam. The laser cutting head 9 is connected to the crossbeam and can move along the length direction of the crossbeam. The crossbeam spans across the bed body and can move along the length direction of the bed body, so as to realize that the laser cutting head 9 can move along the length and width directions of the bed body.

[0053] In this embodiment, a first gear is rotatably connected to the crossbeam, and a first motor is connected to the first gear. The first gear is meshed and connected with a first rack 6.7. The first rack 6.7 is fixed to the bed body. When the first motor rotates, it drives the first gear to rotate, causing the first gear to move along the first rack 6.7, thereby driving the crossbeam 6.7 to move along the length direction of the bed body through the first gear. A second rack is further provided on the crossbeam. The second rack is meshed and connected with a second gear. The second gear is rotatably connected to the laser cutting head 9, and a second motor is connected to the second gear. When the second motor rotates, it drives the second gear to rotate, causing the second gear to move along the second rack, thereby driving the laser cutting head 9 to move along the length direction of the crossbeam. The length direction of the crossbeam is consistent with the width direction of the bed body.

[0054] Preferably, the first rack 6.7 is provided on the front bed body 6. The first rack 6.7 is respectively provided on the front left beam 6.1 and the front right beam 6.2. The two ends of the crossbeam are respectively connected to the first gears. The two first gears are meshed and connected with the two first racks 6.7 one by one to ensure the stability of the crossbeam movement. Guide rail sliders 6.8 are also respectively provided on the front left beam 6.1 and the front right beam 6.2. Both of the two guide rail sliders 6.8 can move along the length direction of the front bed body 6. The two ends of the crossbeam are respectively connected to the two guide rail sliders 6.8 correspondingly.

[0055] This embodiment also provides a table rear tightening 14 and a table front positioning 15 on the bed body. After the processing table moves in place, the processing table is clamped and positioned by the table rear tightening 14 and the table front positioning 15 to prevent the processing table from moving.

[0056] In order to achieve zoned dust suction in this embodiment, air ducts are respectively provided on both sides of the bed body. A plurality of dust suction ports are provided on the side of each air duct facing the inside of the bed body. A dust suction mechanism 13 is provided at each dust suction port. The dust suction mechanism 13 includes a cylinder 13.1, an opening and closing plate 13.5, and an outer fixing plate 13.4. A ventilation port is provided on the opening and closing plate 13.5. The opening and closing plate 13.5 is fixed at the dust suction port. The cylinder shaft is connected to the outer fixing plate 13.4. The opening and closing plate 13.5 is connected to a guide rod 13.3. The outer fixing plate 13.4 is slidably connected to the guide rod 13.3. When the cylinder 13.1 expands and contracts, it can drive the outer fixing plate 13.4 to move along the guide rod 13.3 in a direction close to or away from the opening and closing plate 13.5, thereby closing or opening the ventilation port.

[0057] Preferably, the dust suction port is communicated with the ventilation port. The opening and closing plate 13.5 is connected to the front bed 6 by bolts. The air duct and multiple dust suction ports are arranged on the front bed 6. The multiple dust suction ports are evenly distributed along the length direction of the front bed 6. The opening and closing plate 13.5 is threadedly connected to the guide rod 13.3. The outer fixing plate 13.4 is slidably connected to the guide rod 13.3 and can move along the guide rod 13.3. The cylinder shaft is threadedly connected to the outer fixing plate 13.4. The cylinder 13.1 is also connected to the cylinder rod protection 13.2. The cylinder shaft passes through the cylinder rod protection 13.2 and is connected to the outer fixing plate 13.4. The cylinder rod protection 13.2 provides guidance for the movement of the cylinder shaft and provides a certain protection for the cylinder shaft.

[0058] The laser cutting of this embodiment is carried out at the front bed 6, so a protective cover is arranged outside the front bed 6. The protective cover also adopts a split structure, including a left protective cover 1, a front protective cover 2, a right protective cover 3, a rear protective cover 4 and an upper protective cover 5. The left protective cover 1, the front protective cover 2, the right protective cover 3, the rear protective cover 4 and the upper protective cover 5 enclose to form a protective cover. The protective cover is connected to the front bed by screws, so as to cover the outside of the front bed, playing a role in preventing dust and radiation during processing and protecting the safety of operators.

[0059] When the laser cutting machine with a bed split exchange platform disclosed in this embodiment is used after being assembled, after the plate is placed on the upper processing table 10 or the lower processing table 11, it is driven by the exchange platform driving component 12 to move to the processing position in the front bed 6. The front positioning 15 of the table positions the upper processing table 10 or the lower processing table 11, and the rear pressing 14 of the table presses the upper processing table 10 or the lower processing table 11. So that the upper processing table 10 or the lower processing table 11 accurately and stably stays at the processing position. After the upper processing table 10 or the lower processing table 11 arrives, the cross beam and the laser cutting head 9 start to move reciprocally to perform laser cutting processing on the plate placed on the upper processing table 10 or the lower processing table 11. A large amount of harmful gases will be generated during the processing. When the cross beam moves to a certain area, the dust suction mechanism 13 in this area starts the function of sucking dust, and the dust suction mechanisms in other areas are closed, so as to ensure sufficient power for sucking dust. This kind of dust removal by area plays a role in both energy saving and improving the effect of sucking dust.

[0060] The laser cutting machine disclosed in this embodiment has a detachable bed body, with a low single-piece weight, a small volume, convenient hoisting and packing, high space passability and more convenient transportation. After the split bed body is disassembled, it can be directly transported by land for export, reducing transportation costs and saving transportation time, adding options for overseas trade transportation. Through the setting of the bed cross braces, the bed body can be made into an integral bed body, making the mechanical stability of the laser cutting machine relatively high, the installation and debugging relatively simple, the accuracy of the laser cutting machine well maintained, and the driving mode of the processing table is synchronous driving on both sides with the same power source, which can not only ensure the synchronous output of power, but also ensure the uniform force on the table. Therefore, the operation of the table is relatively stable, the service life of the equipment is extended, and the material processing effect is guaranteed; compared with the traditional non-zoned dust suction mechanism, the zoned operation mode of the dust suction mechanism disclosed in this embodiment can effectively ensure sufficient suction. And when the dust suction mechanism disclosed in this embodiment operates, the ventilation opening can be fully opened, the friction of the guide rod is low, and the frequency of jamming is low, greatly improving the service life of the mechanism, having a better effect of sucking smoke and dust, and effectively protecting the physical health of the operator and the green air environment.

[0061] Embodiment 2

[0062] In this embodiment, a laser cutting system with a split bed exchange platform is disclosed, including a laser cutting machine with a split bed exchange platform disclosed in Embodiment 1.

[0063] Although the specific implementation manners of the present invention are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative labor are still within the protection scope of the present invention.

Claims

1. A laser cutting machine with split bed and exchange platform, characterized in that: It includes a bed, a laser cutting head and a processing table. The bed includes a front bed and a rear bed connected to each other. The front bed and the rear bed are fixedly connected by bolts, and a track is overlapped at the connection between the front bed and the rear bed to form a split bed. The laser cutting head is connected to the bed and can move along the length and width of the bed. The processing table is slidably connected to the bed. The processing table includes an upper processing table and a lower processing table. A driving motor is arranged on the bed. The output shaft of the driving motor is connected to two first drag sprockets through a power transmission component. The two first drag sprockets are respectively connected to the second drag sprocket through a table drag chain. The first drag sprocket and the second drag sprocket are both rotatably connected to the bed. The two ends of the upper processing table and the lower processing table are respectively connected to the two table drag chains. The front bed and the rear bed both include a left beam and a right beam which are arranged in parallel with each other. The left beam and the right beam are connected with a bed cross brace, which is arranged between the left beam and the right beam and is connected by bolts.

2. A laser cutting machine with a split bed and exchange platform as claimed in claim 1, characterized in that: The front bed frame and the rear bed frame both include a left beam and a right beam which are arranged relatively parallel to each other, and a bed frame cross brace is connected between the left beam and the right beam.

3. The laser cutting machine with split bed and exchange platform as claimed in claim 1, characterized in that: A drag chain guide rail is arranged on the bed body, and the table top drag chain is located in the drag chain guide rail and can move along the drag chain guide rail.

4. The laser cutting machine with split bed and exchange platform as claimed in claim 1, characterized in that: The power transmission assembly includes a driving shaft and two chain drive assemblies. The chain drive assembly includes a driving sprocket, a driving chain and a driven sprocket. The driven sprocket is fixed on a rotating shaft. The driving sprocket is connected to the driven sprocket through a driving chain. The two rotating shafts are rotatably connected to the bed. The two driving sprockets are respectively fixed to two ends of the driving shaft. The two first dragging sprockets are correspondingly connected to the two rotating shafts. The driving shaft is connected to the output shaft of the driving motor.

5. The laser cutting machine with split bed and exchange platform as claimed in claim 1, characterized in that: An upper processing table rail and a lower processing table rail are arranged on the bed; The upper processing table is slidably connected to the upper processing table track, and the lower processing table is slidably connected to the lower processing table track.

6. The laser cutting machine with split bed and exchange platform as claimed in claim 1, characterized in that: The laser cutting head is connected to the crossbeam and can move along the length direction of the crossbeam. The crossbeam spans the bed and can move along the length direction of the bed.

7. A laser cutting machine with a split bed and exchange platform as claimed in claim 6, characterized in that: The first gear is rotatably connected to the crossbeam, the first motor is connected to the first gear, the first gear is meshed with the first rack, the first rack is fixed to the bed, a second rack is also arranged on the crossbeam, the second rack is meshed with the second gear, the second gear is rotatably connected to the laser cutting head, and the second motor is connected to the second gear.

8. The laser cutting machine with split bed and exchange platform as claimed in claim 1, characterized in that: Air ducts are respectively arranged on both sides of the bed body, and multiple dust suction ports are arranged on the side of the two air ducts facing the inside of the bed body. A dust suction mechanism is arranged at each dust suction port, and the dust suction mechanism includes a cylinder, an opening and closing plate and an outer fixing plate. Ventilation ports are arranged on the opening and closing plate, and the opening and closing plate is fixed at the dust suction port. The cylinder shaft is connected to the outer fixing plate, the opening and closing plate is connected to the guide rod, and the outer fixing plate is slidably connected to the guide rod. The extension and retraction of the cylinder can drive the outer fixing plate to move along the guide rod toward or away from the closing plate, thereby closing or opening the vent.

9. The laser cutting machine with split bed and exchange platform as claimed in claim 1, characterized in that: A protective cover is arranged outside the front bed.

10. A laser cutting system with a split bed exchange platform, characterized in that: A laser cutting machine with a split bed and exchange platform comprising the one described in any one of claims 1-9.

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