A laser cutting machine with a semi-hollow nested doll type bed body

Abstract

The present invention discloses a laser cutting machine with a semi-hollow nested doll type bed body, which includes side plates. Two side plates are connected by a cross beam arranged therebetween to form an integral semi-hollow bed body. Guide rail seats are installed on the tops of the side plates, and a moving mechanism for driving a laser cutting head to move is installed on the guide rail seats. A workbench is sleeved inside the bed body, and the plane of the workbench is parallel to the bed body. The workbench includes an installation frame, and a plurality of parallel cross frames are connected to the installation frame. A smoke removal component for closely extracting smoke and dust is arranged on each cross frame, and a protection component for protecting and assisting the smoke removal component to extract smoke and dust is covered on the smoke removal component; The present invention adopts a semi-hollow bed body, which reduces the weight of the bed body on the premise of reliable strength, saving material cost and transportation cost; The nested doll type structure can effectively protect the bed body. By arranging a smoke removal component on each cross frame, the smoke and dust generated during the cutting process can be effectively extracted at close range, reducing environmental pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of laser cutting machines, and particularly to a laser cutting machine with a semi-hollow nested doll type bed body. Background Technique

[0002] With the progress of laser technology and the reduction of costs, the power of lasers carried by the laser cutting machine industry has rapidly climbed from the previously common 1000 - 6000W to the ten-thousand-watt level, with power ranges of 12000W, 15000W, and even 20000W, 30000W, 40000W. Taking the common Q235 steel plate as an example, the thickness of the plate that can be cut has rapidly increased from the earlier 5mm to 50 - 100mm, and the cutting accuracy, speed, and cut quality have all been significantly improved. It can be foreseen that the development of high-power laser cutting machines will be the general trend of the entire industry.

[0003] However, when using high-power lasers to cut plates, the bed body is prone to damage due to the high temperature generated during laser cutting, affecting the machining accuracy, stability, and safety. At the same time, a large amount of smoke and dust is generated during laser cutting. In existing laser cutting equipment, the smoke and dust are generally removed by setting a smoking device at the laser or inside the bed body. Among them, a dust extraction and smoke removal device is provided on the crossbeam of the bed body. However, on the one hand, the dust extraction and smoke removal device will be damaged during high-power laser cutting. On the other hand, when disassembling, maintaining, or replacing the dust extraction and smoke removal device, the presence of the rack and the rack insert makes it difficult to disassemble and install, time-consuming and laborious.

[0004] In Chinese Patent CN107855671A, a body protection structure for a high-power laser cutting machine is disclosed, which includes a machine body; a dust removal air duct is provided at the middle position of the machine body and is distributed front and back; strengthening structures are provided on both sides of the dust removal air duct and are distributed left and right; the dust removal air duct includes an air duct, an air duct air lock provided on the upper side of the air duct, and an air duct V-shaped protective cover buckled above the air duct; the strengthening structure includes a reinforcing rib, a bracket, and a reinforcing rib V-shaped protective cover buckled above the reinforcing rib; V-shaped high-aluminum refractory bricks are respectively provided on the air duct V-shaped protective cover and the reinforcing rib V-shaped protective cover; the V-shaped inner side surface of the V-shaped high-aluminum refractory brick is in close contact with the outer side surface of the V-shaped protective cover. For the body protection structure of a high-power laser cutting machine of this invention, V-shaped high-aluminum refractory bricks are used and are fixed on the machine body by relying on their own structures without additional fixation, so as to protect the dust removal air duct. However, problems such as how the V-shaped protective cover and the dust removal air duct are installed, what the positional relationship is with the rack and the rack insertion plate, and whether the dust removal air duct can also be maintained or replaced flexibly and conveniently are not solved in this invention. Additionally, in Chinese Patent CN221337179U, a high-temperature resistant dust extraction and smoke suction type laser cutting machine body is also disclosed, which has a machine body. Multiple parallel machine body cross beams are provided in the cutting working area on the machine body; a high-temperature resistant component for protecting the machine body cross beam is provided on each machine body cross beam. The inside of the machine body cross beam is partitioned into a smoking chamber and a dust extraction chamber by a partition part; the smoking chamber is located above the dust extraction chamber; a smoking port and a dust extraction port are provided on the machine body cross beam; the smoking port is communicated with the smoking chamber, and the dust extraction port is communicated with the dust extraction chamber. This invention has heat resistance protection and also has the functions of smoking and dust extraction, with high functional integration, but its disassembly and assembly are not flexible enough, and the cooperation between the high-temperature resistant component and the cross beam is not stable enough. Summary of the Invention

[0005] The object of the present invention is to solve the problems existing in the laser cutting machine body and dust extraction and smoke removal in the above-mentioned background technology. The present invention provides a laser cutting machine with a semi-hollow nested doll type machine body.

[0006] The present invention realizes the above object through the following technical solutions: A laser cutting machine with a semi-hollow nested doll type machine body includes two relatively arranged side plates. The two side plates are connected by a cross beam provided therebetween to form an integrated semi-hollow machine body. Guide rail seats are installed on the tops of the two side plates. A moving mechanism for driving a laser cutting head to move is installed on the guide rail seats. A workbench for placing workpieces is sleeved inside the machine body. The plane of the workbench is parallel to the machine body. The workbench includes an installation frame. Multiple parallel cross frames are connected to the installation frame. A smoke removal component for extracting smoke at a short distance is provided on each cross frame. A protective component for protecting and assisting the smoke removal component in extracting smoke is covered on the smoke removal component.

[0007] Furthermore, a stabilizing beam for stabilizing the bed body is connected between the two side plates. An air suction duct is provided along the inner side surface of the side plates. The air suction ducts converge at the front part of the bed body, and an air suction interface connected to an external air extraction device is provided at the convergence point.

[0008] Furthermore, the smoke removal component includes a positioning member connected and installed on the top of the cross frame. The positioning member is in the shape of an open-top box. A plurality of mounting plates are fixedly connected to the two outer side walls of the positioning member. An installation rack insert plate is connected and installed between adjacent two positioning members through the mounting plates. A smoking box is placed in the positioning member in a limited way. A plurality of smoking holes are communicated and opened on the two side walls of the smoking box and the positioning member. Smoke outlet holes are opened at both ends of the smoking box. Smoke exhaust interfaces communicated with the smoke outlet holes are opened at both ends of the positioning member. A connecting pipe is connected and installed at the smoke exhaust interface, and the other end of the connecting pipe is connected to the air suction duct; Two horns are provided on the top of the smoking box, and a clamping part is formed between the two horns.

[0009] Furthermore, the protection component includes a square rod placed at the clamping part. A protection cover plate is fixedly connected to the top of the square rod. The protection cover plate includes two downwardly inclined and symmetrically arranged air-permeable plates. A plurality of downwardly inclined strip-shaped air-permeable holes are opened on the air-permeable plates. A partition positioning part for facilitating the connection and installation of the rack insert plate and the mounting plate is opened on the air-permeable plates.

[0010] Furthermore, mounting plates are fixedly connected and installed at the top ends of both ends of the mounting frame. The rack insert plates close to both ends of the mounting frame are connected and installed on the mounting plates. A plurality of racks are equidistantly inserted on the rack insert plates.

[0011] Furthermore, the workbench further includes a support component connected and installed at the bottom of the mounting frame. The support component includes multiple groups of support legs connected and installed at equal intervals at the bottom of the mounting frame. Each group of support legs includes four leg braces. A long leg beam and a short leg beam are respectively connected between the four leg braces.

[0012] Furthermore, support baffle plates inclined outward are connected and provided at the top of both of the long leg beams. The other ends of the support baffle plates are connected to the cross frame. A connecting plate is connected and installed between the two support baffle plates; A triangular baffle plate is provided at the included angle gap between the inclined support baffle plate and the upper part of the leg brace. The triangular baffle plate is connected and installed on the leg brace.

[0013] Further, the moving mechanism includes a moving plate that drives the laser cutting head to move longitudinally. A bevel swing shaft mechanism for the laser cutting head to swing is installed on the moving plate. The bevel swing shaft mechanism includes a concave fixed frame fixedly installed on the moving plate. A rotating plate is rotatably installed on the fixed frame. A first swing motor reducer connected to the rotating plate is installed on the side wall of the fixed frame. A second swing motor reducer that penetrates the rotating plate and is connected to the laser cutting head is installed on the side wall of the rotating plate.

[0014] Further, refractory bricks are laid on the inclined support baffle plate. A material cart is provided at each group of support legs. The material cart is located between the leg supports, and the height of the material cart is lower than that of the short leg beam. Refractory bricks are laid in the material cart.

[0015] Further, a plurality of support beams are provided at the bottom of the bed body. Adjustable-height foot supports are installed at both ends of the support beams.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention adopts a semi-hollow bed body, which reduces the weight of the bed body on the premise of reliable strength, saving material costs and transportation costs. And by using a nested doll structure, a workbench for placing workpieces is nested inside the bed body, which can effectively protect the bed body, prevent the main bed body from being cut, and minimize the impact of high temperature during cutting on the main bed body. The weight of the workpiece processed by laser does not act on the main bed body, which does not affect the accuracy of the bed body. The components in the workbench can also be replaced at any time according to the actual situation.

[0018] 2. The installation frame structure of the workbench adopts two-section butt joint, and the gaps between the cross frames are the same, including the butt joint, to ensure the unified cooperation of the rack and the rack insertion plate inside the installation frame. By setting a smoke extraction component on each cross frame, the smoke generated during cutting can be effectively extracted at a close distance, reducing environmental pollution. The square rod and the protective cover plate in the protection component are made of anti-cut square steel or anti-cut graphite strips, which can effectively protect the smoke extraction component. At the same time, through the design of the ventilation plate and the strip-shaped ventilation holes, it assists the smoke extraction component to extract smoke, improving the smoke extraction efficiency.

[0019] 3. In the smoke extraction component, the smoking box for extracting soot is directly placed in the positioning member in the shape of an open-top box without additional positioning. In addition, two horns are provided on the top of the smoking box in the smoke extraction component. On the one hand, a clamping portion is provided between the two horns, so that the protective cover plate can be stably placed through the square rod. On the other hand, a partition positioning portion for facilitating the connection and installation of the rack insertion plate and the mounting piece is provided on the ventilation plate of the protective cover plate. Thus, the rack insertion plate can also position the protective component during installation and processing through the partition positioning portion. The designed smoking box and the protective component can be directly and flexibly manually disassembled, so that they can be cleaned, maintained or replaced.

[0020] 4. The design of multiple groups of support legs and support baffle plates in the support component not only provides stable support, but also enhances the overall structural stability and anti-impact ability through the settings of the triangular baffle plate and the connecting plate. Laying refractory bricks on the support baffle plate and the material cart can effectively prevent the damage of the equipment caused by the high-temperature sparks generated during the cutting process, extend the service life of the equipment, and improve safety at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 is a schematic diagram of the bed body and the workbench in the present invention;

[0023] Figure 3 is a structural schematic diagram of the workbench of the present invention;

[0024] Figure 4 is Figure 3 an enlarged view of part B in;

[0025] Figure 5 is a schematic diagram of the mounting frame, the cross frame and the support component in the present invention;

[0026] Figure 6 is a schematic diagram of the protective component and the smoke extraction component in the present invention;

[0027] Figure 7 is an exploded view of the protective component and the smoke extraction component in the present invention;

[0028] Figure 8 is a schematic diagram of the installation and connection of the rack insertion plate and the positioning member in the present invention;

[0029] Figure 9 is a top view of the protective component and the smoke extraction component in the present invention;

[0030] Figure 10 is Figure 9 a cross-sectional view taken along A-A in;

[0031] Figure 11Connection diagram of the air suction duct and the smoke removal component in the present invention;

[0032] Figure 12 Schematic diagram of the bevel swing shaft mechanism and the laser cutting head in the present invention.

[0033] In the figure: 1 - side plate, 2 - cross beam, 3 - bed body, 4 - guide rail seat, 5 - laser cutting head, 6 - moving mechanism, 7 - workbench, 8 - smoke removal component, 9 - protection component, 10 - air suction duct, 11 - air suction interface, 12 - rack insert plate, 13 - connecting pipe, 14 - rack, 15 - bevel swing shaft mechanism, 16 - material cart, 17 - support beam, 18 - foot support, 21 - stabilizing beam, 61 - moving plate;

[0034] 71 - mounting frame, 72 - cross frame, 73 - support component, 711 - mounting plate, 731 - support leg, 732 - support baffle, 733 - connecting plate, 734 - triangular baffle, 7311 - leg support, 7312 - long leg beam, 7313 - short leg beam;

[0035] 81 - positioning part, 82 - mounting piece, 83 - smoking box, 84 - smoking hole, 811 - exhaust interface, 831 - smoke outlet hole, 832 - corner, 833 - clamping part;

[0036] 91 - square rod, 92 - protection cover plate, 921 - ventilation plate, 922 - ventilation hole, 923 - partition positioning part;

[0037] 151 - fixing frame, 152 - rotating plate, 153 - first swing motor reducer, 154 - second swing motor reducer. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0040] Combined with Figures 1 to 12 A laser cutting machine with a semi-hollow matryoshka-style bed body as shown, including two side plates 1 arranged oppositely. The two side plates 1 are connected by a cross beam 2 arranged between them to form an integrated semi-hollow bed body 3. Guide rail seats 4 are installed on the tops of the two side plates 1, and a moving mechanism 6 for driving a laser cutting head 5 to move is installed on the guide rail seats 4. A workbench 7 for placing workpieces is sleeved inside the bed body 3. The plane of the workbench 7 is parallel to the bed body 3. The workbench 7 includes an installation frame 71, and a plurality of parallel cross frames 72 are connected to the installation frame 71. A smoke removal component 8 for extracting smoke at a short distance is arranged on each cross frame 72, and a protection component 9 for protecting and assisting the smoke removal component 8 to extract smoke is covered on the smoke removal component 8;

[0041] As Figures 1-2 shown, the present invention adopts a semi-hollow bed body 3. A stabilizing beam 21 for stabilizing the bed body 3 is connected between the two side plates 1. On the premise of reliable strength, the weight of the bed body is reduced, and the material cost and transportation cost are saved; by using the matryoshka-style structure, a workbench 7 for placing workpieces is sleeved inside the bed body 3, which can greatly reduce the influence of high temperature during laser cutting processing on the bed body 3, and avoid the situation that the processing accuracy becomes poor due to the deformation of the bed body caused by the heavy workpiece in the conventional integrated workbench and bed body. The guide rail seats 4 on the bed body 3 ensure the movement accuracy of the cross beam in the Z-axis direction, and the bed body does not need to bear the gravity of the workpiece, so the material of the bed body can be greatly reduced;

[0042] Combined with Figure 1 、 Figure 10 shown, an air suction pipeline 10 is arranged along the inner side surface of the side plate 1. The air suction pipeline 10 converges at the front part of the bed body 3, and an air suction interface 11 connected to an external air extraction device is arranged at the convergence point; the air suction pipeline 10 converges at the front part of the bed body 3, which can effectively and centrally extract air from the whole bed body. The air suction interface 11 is arranged at the front part, which is convenient for connecting and disconnecting with the external air extraction device and is convenient for maintenance. This air extraction method is a common means of existing laser cutting machines.

[0043] As Figures 3-10As shown, the smoke extraction assembly 8 includes a positioning member 81 connected and installed at the top of the horizontal frame 72. The positioning member 81 is in the shape of an open-top box. A plurality of mounting pieces 82 are fixedly connected to the two outer side walls of the positioning member 81. The mounting rack insert plate 12 is connected and installed between two adjacent positioning members 81 through the mounting pieces 82. A smoking box 83 is placed in the positioning member 81 in a limited manner. A plurality of smoking holes 84 are communicated and opened on the two side walls of the smoking box 83 and the positioning member 81. Smoke outlet holes 831 are opened at both ends of the smoking box 83. Smoke exhaust interfaces 811 communicated with the smoke outlet holes 831 are opened at both ends of the positioning member 81. A connecting pipe 13 is connected and installed at the smoke exhaust interface 811. The other end of the connecting pipe 13 is connected to the air suction pipe 10; two horns 832 are provided at the top of the smoking box 83, and a clamping portion 833 is formed between the two horns 832;

[0044] Among them, the positioning member 81 in the shape of an open-top box can be fixedly installed at the top of the horizontal frame 72 by means of fastening screws or welding. The rack insert plate 12 can be connected to the mounting piece 82 by bolts, so as to stably install the rack 14 on the rack insert plate 12. The smoking box 83 is directly placed in the open-top box-shaped positioning member 81, and the side walls of the positioning member 81 limit the smoking box 83; the smoking holes 84 commonly opened on the positioning member 81 and the smoking box 83 are aligned and communicated with each other, so as to ensure that the soot can smoothly enter the smoking box 83 through the positioning member 81; during use, an external air extraction device is started, and the soot generated during the cutting of the workpiece by the laser cutting machine will enter the smoking box 83 through a plurality of smoking holes 84 along with the air extraction. Subsequently, the soot enters the connecting pipe 13 through the smoke outlet holes 831 and the smoke exhaust interfaces 811, and finally is sucked into the external air extraction device through the air suction pipe 10 along with the air extraction airflow, so as to reduce the pollution of laser cutting; among them, smoke exhaust interfaces 811 communicated with the smoke outlet holes 831 are opened at both ends of the positioning member 81, and both ends of the positioning member 81 are connected to the air suction pipe 10 by means of the smoke exhaust interfaces 811 and the connecting pipe 13, so as to effectively send the soot in the smoking box 83 to the air suction pipe 10. On the one hand, it is convenient for centralized dust extraction and avoids additionally connecting a dust extraction device to the smoking box 83. On the other hand, the connecting pipe 13 is not directly connected to the smoking box 83, so as to improve the flexibility of the smoking box 83, so as to facilitate the disassembly, cleaning, maintenance or replacement of the smoking box 83.

[0045] As Figures 4-10 shown, the protection assembly 9 includes a square rod 91 placed at the clamping portion 833. A protection cover plate 92 is fixedly connected to the top of the square rod 91. The protection cover plate 92 includes two downwardly inclined and symmetrically arranged ventilation plates 921. A plurality of downwardly inclined strip-shaped ventilation holes 922 are opened on the ventilation plates 921. A partition positioning portion 923 facilitating the connection and installation of the rack insert plate 12 and the mounting piece 82 is opened on the ventilation plates 921;

[0046] Among them, as Figure 7 andFigure 10 As shown, the square rod 91 is placed on the top of the cigarette smoking box 83, and two faces of the square rod 91 are attached to two faces of the clamping part 833 formed by the two horns 832. The square rod 91 is fixedly connected to the protective cover plate 92. The inclined top faces of the two horns 832 are attached to the inner sides of the ventilation plates 921 of the protective cover plate 92. Thus, the protective cover plate 92 can be stably placed through the cooperation between the square rod 91 and the clamping part 833, and the attachment between the protective cover plate 92 and the horns 832. Additionally, as Figure 4 and Figure 9 shown, partition positioning parts 923 facilitating the connection and installation of the rack insertion plate 12 and the mounting piece 82 are formed on the ventilation plates 921 of the protective cover plate 92. Thus, the rack insertion plate 12 can also be positioned during the installation and processing of the protection component 9 through the partition positioning parts 923. With such a design, both the cigarette smoking box 83 and the protection component 9 can be directly and flexibly manually disassembled, so as to be cleaned, maintained or replaced. During use, when an external air extraction device is started, the dust generated during the cutting of the workpiece by the laser cutting machine is sucked into the cigarette smoking box 83 through the ventilation holes 922 formed in the ventilation plates 921, thereby protecting the smoke removal component 8 while assisting in ventilating and sucking the dust. The inclination angle of the ventilation plates 921 is 30° - 60°, and preferably 45°. As Figure 10 shown, the strip-shaped ventilation holes 922 formed in the ventilation plates 921 all incline downward, with an inclination angle of 5° - 25°, and preferably 10°. Additionally, the shape of the ventilation holes 922 is not limited to the rectangular shape shown in the figure, and can also be an arc shape.

[0047] As Figures 2-3 shown, mounting plates 711 are fixedly connected and installed at the top ends of both ends of the mounting frame 71. The rack insertion plates 12 near both ends of the mounting frame 71 are connected and installed on the mounting plates 711, and a plurality of racks 14 are equidistantly inserted into the rack insertion plates 12. The fixed connection between the mounting plates and the rack insertion plates, and the equidistant insertion of the racks make the whole structure easy to install and maintain.

[0048] As Figure 5 shown, the workbench 7 further includes a support component 73 connected and installed at the bottom of the mounting frame 71. The support component 73 includes multiple groups of support legs 731 connected and installed equidistantly at the bottom of the mounting frame 71. Each group of support legs 731 includes four leg braces 7311, and long leg beams 7312 and short leg beams 7313 are respectively connected between the four leg braces 7311. Support baffle plates 732 inclined outward are connected and installed at the tops of the two long leg beams 7312. The other ends of the support baffle plates 732 are connected to the cross frame 72, and a connecting plate 733 is connected and installed between the two support baffle plates 732. A triangular baffle plate 734 is arranged at the angular gap between the inclined support baffle plates 732 and the upper parts of the leg braces 7311, and the triangular baffle plate 734 is connected and installed on the leg braces 7311;

[0049] During use, the support baffle plates 732 connected and installed on two adjacent sets of support legs 731 are jointly connected to the same cross beam 72 to form a triangular support, enhancing the overall structural stability and the impact resistance during laser cutting. The setting of the connecting plate 733 improves the stability of the support baffle plate 732. In addition, a triangular baffle plate 734 is provided at the angular gap between the support baffle plate 732 and the upper part of the leg support 7311 to block the waste residues splashing outwards during laser cutting of workpieces, reducing the situation where waste splashes outside the machine tool.

[0050] Refractory bricks are laid on the inclined support baffle plate 732. A material cart 16 is provided at each set of support legs 731. The material cart 16 is located between the leg supports 7311, and the height of the material cart 16 is lower than that of the short leg beam 7313. Refractory bricks are laid in the material cart 16. During use, the waste and residues generated by laser cutting of workpieces will fall onto the support baffle plate 732 and finally slide onto the material cart 16. Laying refractory bricks on the support baffle plate 732 and the material cart 16 can effectively prevent damage to the equipment caused by high-temperature sparks generated during cutting, extend the service life of the equipment, and improve safety at the same time. After cutting, the material cart 16 can be pulled out through the handle for waste and residue collection.

[0051] Combined Figure 1 and Figure 12 As shown, the moving mechanism 6 includes a moving plate 61 that drives the laser cutting head 5 to move longitudinally. A bevel swing shaft mechanism 15 for the swing of the laser cutting head 5 is installed on the moving plate 61. The bevel swing shaft mechanism 15 includes a concave fixed frame 151 fixedly installed on the moving plate 61. A rotating plate 152 is rotatably installed on the fixed frame 151. A first swing motor reducer 153 connected to the rotating plate 152 is installed on the side wall of the fixed frame 151. A second swing motor reducer 154 that penetrates the rotating plate 152 and is connected to the laser cutting head 5 is installed on the side wall of the rotating plate 152. During use, the first swing motor reducer 153 can drive the laser cutting head 5 to rotate for cutting by driving the rotation of the rotating plate 152, and the second swing motor reducer 154 can drive the laser cutting head 5 to rotate itself for laser cutting. Thus, the bevel swing shaft mechanism 15 can realize multi-angle swing of the laser cutting head 5 to adapt to different cutting requirements, and the bevel swing shaft mechanism 15 increases the overall stability of the bevel mechanism and makes the dynamic performance of the whole machine better, solving the problem of jitter caused by poor rigidity of the traditional bevel cutting head during high-speed movement.

[0052] As Figure 1As shown, a plurality of support beams 17 are provided at the bottom of the bed body 3, and adjustable-height feet 18 are installed at both ends of the support beams 17. Among them, the support beams 17 are arranged between two adjacent sets of support legs 731 for supporting the bed body 3. The feet 18 provided on the support beams 17 can adjust the height and level of the device according to actual needs.

[0053] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0054] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A laser cutting machine with a semi-hollow nesting doll bed, comprising two side panels (1) arranged opposite to each other, the two side panels (1) being connected by a crossbeam (2) arranged therebetween to form an integrated semi-hollow bed (3), the tops of the two side panels (1) being both provided with guide rail seats (4), the guide rail seats (4) being provided with a moving mechanism (6) for driving a laser cutting head (5) to move, characterized in that: A workbench (7) for placing workpieces is provided inside the bed (3), the plane of the workbench (7) being parallel to the bed (3), the workbench (7) comprising a mounting frame (71), a plurality of parallel horizontal frames (72) being connected to the mounting frame (71), each of the horizontal frames (72) being provided with a smoke removal component (8) for extracting smoke at a close distance, and a protective component (9) for protecting and assisting the smoke removal component (8) in extracting smoke; A stabilizing beam (21) for stabilizing the bed (3) is connected between the two side panels (1), and an air suction duct (10) is provided along the inner side surface of the side panel (1). The air suction duct (10) intersects at the front of the bed (3), and an air suction interface (11) connected to an external air exhaust device is provided at the intersection; The smoke removal assembly (8) comprises a positioning member (81) connected and mounted on the top of the cross frame (72); the positioning member (81) is in the shape of an open-top box; a plurality of mounting plates (82) are fixedly connected on two outer side walls of the positioning member (81); a rack insert plate (12) is connected and mounted between two adjacent positioning members (81) via the mounting plates (82); a smoking box (83) is placed in a limited position in the positioning member (81); and a connecting opening is provided on the two side walls of the smoking box (83) and the positioning member (81). There are a plurality of smoking holes (84), smoke outlet holes (831) are provided at both ends of the smoking box (83), smoke exhaust interfaces (811) connected to the smoke outlet holes (831) are provided at both ends of the positioning member (81), a connecting pipe (13) is connected and installed at the smoke exhaust interface (811), and the other end of the connecting pipe (13) is connected to the air suction duct (10); two horns (832) are provided at the top of the smoking box (83), and a clamping portion (833) is formed between the two horns (832); The protective assembly (9) comprises a square rod (91) placed at the clamping portion (833); a protective cover plate (92) is fixedly connected to the top of the square rod (91); the protective cover plate (92) comprises two downwardly inclined and symmetrically arranged air vent plates (921); a plurality of downwardly inclined strip-shaped air vent holes (922) are provided on the air vent plates (921); and a partition positioning portion (923) is provided on the air vent plates (921) for facilitating the connection and installation of the rack plug plate (12) and the mounting plate (82).

2. The laser cutting machine with a semi-hollow nesting doll bed according to claim 1, characterized in that: Mounting plates (711) are fixedly connected and installed at the tops of both ends of the mounting frame (71), the rack inserting plates (12) near both ends of the mounting frame (71) are connected and installed on the mounting plates (711), and a plurality of racks (14) are inserted on the rack inserting plates (12) at equal distances.

3. The laser cutting machine with a semi-hollow nesting doll bed according to claim 2, characterized in that: The workbench (7) further comprises a support assembly (73) connected and mounted on the bottom of the installation frame (71), the support assembly (73) comprising a plurality of groups of support legs (731) connected and mounted at equal distances on the bottom of the installation frame (71), each group of the support legs (731) comprising four leg supports (7311), and long leg beams (7312) and short leg beams (7313) are respectively connected between the four leg supports (7311).

4. The laser cutting machine with a semi-hollow nesting doll bed according to claim 3, characterized in that: The tops of the two long leg beams (7312) are both connected with a support baffle plate (732) that is tilted outward, the other end of the support baffle plate (732) is connected to the cross frame (72), and a connecting plate (733) is connected and installed between the two support baffle plates (732); a triangular baffle plate (734) is provided at the angle gap between the tilted support baffle plate (732) and the upper part of the leg support (7311), and the triangular baffle plate (734) is connected and installed on the leg support (7311).

5. The laser cutting machine with a semi-hollow nesting doll bed according to claim 4, characterized in that: The moving mechanism (6) comprises a moving plate (61) for driving the laser cutting head (5) to move longitudinally, the moving plate (61) being provided with a groove swing axis mechanism (15) for swinging the laser cutting head (5), the groove swing axis mechanism (15) comprising a concave fixing frame (151) fixedly mounted on the moving plate (61), a rotating plate (152) being rotatably mounted on the fixing frame (151), a first swing motor reducer (153) connected to the rotating plate (152) being mounted on a side wall of the fixing frame (151), and a second swing motor reducer (154) penetrating the rotating plate (152) and connected to the laser cutting head (5) being mounted on a side wall of the rotating plate (152).

6. The laser cutting machine with a semi-hollow nesting doll bed according to claim 5, characterized in that: Refractory bricks are laid on the inclined support baffle plate (732), and a trolley (16) is provided at each set of the support legs (731). The trolley (16) is located between the leg supports (7311), and the height of the trolley (16) is lower than the short leg beam (7313). Refractory bricks are laid inside the trolley (16).

7. The laser cutting machine with a semi-hollow nesting doll bed according to claim 6, characterized in that: A plurality of support beams (17) are provided at the bottom of the bed (3), and height-adjustable foot supports (18) are installed at both ends of the support beams (17).

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