Laser cutting machine with semi-hollow sleeve doll type lathe bed

Abstract

The invention discloses a laser cutting machine with a semi-hollow doll type lathe bed, which comprises side plates and a semi-hollow lathe bed integrally formed by connecting the two side plates through a cross beam arranged between the two side plates, guide rail seats are mounted at the tops of the side plates, a moving mechanism for driving a laser cutting head to move is mounted on the guide rail seats, and a workbench is sleeved in the lathe bed. The plane of the working table is parallel to the lathe bed, the working table comprises a mounting frame, a plurality of transverse frames arranged in parallel are connected to the mounting frame, each transverse frame is provided with a smoke removal assembly used for extracting smoke dust in a short distance, and the smoke removal assemblies are covered with protection assemblies used for protecting and assisting the smoke removal assemblies in smoke dust extraction; the semi-hollow lathe bed is adopted, on the premise that the strength is reliable, the weight of the lathe bed is reduced, and the material cost and the transportation cost are saved; the bed body can be effectively protected through the sleeve doll type structure, the smoke removing assembly is arranged on each transverse frame, smoke generated in the cutting process can be effectively extracted in a short distance, and environmental pollution is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting machines, in particular to a laser cutting machine with a semi-hollow nesting doll-type bed. Background Art

[0002] With the advancement of laser technology and the reduction of costs, the power of lasers used in the laser cutting industry has rapidly increased from the previously common 1000-6000W to the 10,000W level, 12,000W, 15,000W, and even 20,000W, 30,000W, and 40,000W power range. Taking the common Q235 steel plate as an example, the thickness of the cuttable plate has rapidly increased from the earlier 5mm to 50-100mm, and the cutting accuracy, speed, and incision 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 laser to cut the plate, the bed is easily damaged by the high temperature generated by the laser cutting, affecting the processing accuracy, stability and safety. At the same time, a large amount of smoke will be generated during laser cutting. In existing laser cutting equipment, smoke is generally removed by installing a smoke extraction device at the laser or inside the bed, and a part of it, that is, a dust extraction and fume removal device is provided on the crossbeam of the bed. However, on the one hand, high-power laser cutting will cause damage to the dust extraction and fume removal device. On the other hand, when the dust extraction and fume removal device is disassembled, maintained or replaced, the presence of the rack and rack plug makes it difficult to disassemble and install, which is time-consuming and labor-intensive.

[0004] Chinese patent CN107855671A discloses a high-power laser cutting machine bed protection structure, including a bed; a dust removal duct distributed front and back is provided in the middle of the bed; reinforcement structures distributed left and right are provided on both sides of the dust removal duct; the dust removal duct includes an air duct, an air duct airlock provided on the upper side of the air duct, and a V-shaped air duct protective cover buckled above the air duct; the reinforcement structure includes reinforcing ribs, a bracket, and a reinforcing rib V-shaped protective cover buckled above the reinforcing ribs; 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 of the V-shaped high-aluminum refractory brick is in close contact with the outer side of the V-shaped protective cover. The invention discloses a high-power laser cutting machine bed protection structure, which adopts a V-shaped high-aluminum refractory brick, and is fixed on the bed by its own structure, without the need for additional fixing, so as to protect the dust removal air duct. However, the invention does not solve the following problems: how to install the V-shaped protective cover and the dust removal air duct, how to position the rack and the rack plate, whether the dust removal air duct can also be flexibly and conveniently maintained or replaced, etc. In addition, the Chinese patent CN221337179U also discloses a high-temperature dust extraction and smoking laser cutting machine bed, which has a bed, and the cutting work area on the bed is provided with a plurality of parallel bed crossbeams; each bed crossbeam is provided with a high-temperature resistant component for protecting the bed crossbeam, and the inside of the bed crossbeam is divided into a smoke extraction chamber and a dust extraction chamber by a partition; the smoke extraction chamber is located above the dust extraction chamber; the bed crossbeam is provided with a smoke extraction port and a dust extraction port; the smoke extraction port is connected to the smoke extraction chamber, and the dust extraction port is connected to the dust extraction chamber. This invention has heat-resistant protection, smoke extraction and dust extraction functions, and has high functional integration. However, its disassembly and assembly are not flexible enough, and the coordination between the high-temperature resistant components and the crossbeam is not stable enough. Summary of the invention

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

[0006] The present invention achieves the above-mentioned purpose through the following technical scheme: a laser cutting machine with a semi-hollow nesting doll type bed, comprising two side panels arranged opposite to each other, the two side panels are connected by a cross beam arranged between the two side panels to form an integrated semi-hollow bed, the tops of the two side panels are installed with guide rail seats, and the guide rail seats are equipped with a moving mechanism for driving the laser cutting head to move, and a workbench for placing workpieces is provided inside the bed, and the plane of the workbench is parallel to the bed, and the workbench includes a mounting frame, and a plurality of parallel cross frames are connected to the mounting frame, and each of the cross frames is provided with a smoke removal component for extracting smoke at a close distance, and the upper cover of the smoke removal component is provided with a protective component for protecting and assisting the smoke removal component in extracting smoke.

[0007] Furthermore, a stabilizing beam for stabilizing the bed is connected between the two side panels, and a suction duct is provided along the inner side of the side panel. The suction ducts intersect at the front of the bed, and a suction interface connected to an external exhaust device is provided at the intersection.

[0008] Furthermore, the smoke removal assembly includes a positioning piece connected and installed on the top of the cross frame, the positioning piece is in the shape of an open-top box, and a plurality of mounting plates are fixedly connected to the two outer side walls of the positioning piece, and a rack plug plate is connected and installed between two adjacent positioning pieces through the mounting plates, a smoking box is placed in a limited position within the positioning piece, and a plurality of smoking holes are connected to the smoking box and the two side walls of the positioning piece, smoke outlet holes are opened at both ends of the smoking box, and smoke exhaust interfaces connected to the smoke outlet holes are opened at both ends of the positioning piece, a connecting pipe is connected and installed at the smoke exhaust interface, and the other end of the connecting pipe is connected to the suction duct; two corners are provided on the top of the smoking box, and a clamping portion is formed between the two corners.

[0009] Furthermore, the protective assembly includes a square rod placed at the clamping portion, the top of the square rod is fixedly connected with a protective cover plate, the protective cover plate includes two downwardly inclined and symmetrically arranged air-permeable plates, the air-permeable plates are provided with a plurality of downwardly inclined strip-shaped air-permeable holes, and the air-permeable plates are provided with a partition positioning portion for facilitating the connection and installation of the rack plug plate and the mounting plate.

[0010] Furthermore, mounting plates are fixedly connected and installed on the tops of both ends of the mounting frame, the rack plug-in plates near both ends of the mounting frame are connected and installed on the mounting plates, and a plurality of racks are plugged on the rack plug-in plates at equal distances.

[0011] Furthermore, the workbench also includes a support assembly connected and installed at the bottom of the installation frame, the support assembly includes a plurality of groups of support legs equidistantly connected and installed at the bottom of the installation frame, each group of the support legs includes four leg supports, and long leg beams and short leg beams are respectively connected between the four leg supports.

[0012] Furthermore, the tops of the two long leg beams are connected with a supporting material baffle plate which is inclined outward, the other end of the supporting material baffle plate is connected to the cross frame, and a connecting plate is connected and installed between the two supporting material baffle plates; a triangular material baffle plate is provided at the angle gap between the inclined supporting material baffle plate and the upper part of the leg support, and the triangular material baffle plate is connected and installed on the leg support.

[0013] Furthermore, the moving mechanism includes a moving plate that drives the laser cutting head to move longitudinally, and a groove swing axis mechanism for swinging the laser cutting head is installed on the moving plate. The groove swing axis mechanism includes a concave fixed frame fixedly installed on the moving plate, and 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, and a second swing motor reducer that passes through the rotating plate and is connected to the laser cutting head is installed on the side wall of the rotating plate.

[0014] Furthermore, the inclined supporting material baffle plate is paved with refractory bricks, each group of the supporting legs is provided with a material trolley, the material trolley is located between the leg supports, and the height of the material trolley is lower than the short leg beam, and refractory bricks are paved in the material trolley.

[0015] Furthermore, a plurality of support beams are provided at the bottom of the bed, and height-adjustable foot supports are installed at both ends of the support beams.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts a semi-hollow bed, which reduces the weight of the bed while ensuring reliable strength, saving material costs and transportation costs; and utilizes a nesting doll structure, in which a workbench for placing workpieces is provided inside the bed, thereby effectively protecting the bed from being cut, thereby minimizing the impact of high temperature on the main bed during the cutting process, and the weight of the workpiece processed by the laser does not act on the main bed, which does not affect the accuracy of the bed, and the components in the workbench can be replaced at any time according to actual conditions.

[0017] 2. The installation frame structure of the workbench adopts two sections connected together, and the gaps between each cross frame are the same, including the joints, to ensure the uniform coordination of the rack and rack plug in the installation frame; by arranging a smoke removal component on each cross frame, the smoke and dust generated during the cutting process can be effectively extracted at a close distance to reduce environmental pollution; the square rods and protective cover plates in the protective component are made of cut-resistant square steel or cut-resistant graphite strips, which can effectively protect the smoke removal component. At the same time, the design of the ventilation plate and strip ventilation holes can assist the smoke removal component in extracting smoke and improve the smoke removal efficiency.

[0018] 3. The smoking box used for extracting smoke in the smoke removal assembly is directly placed in the positioning piece in the shape of an open top box, without the need for additional positioning; in addition, two corners are arranged on the top of the smoking box in the smoke removal assembly, on the one hand, a clamping portion is provided between the two corners, so that the protective cover plate can be stably placed through the square rod, and on the other hand, a partition positioning portion is provided on the air vent plate of the protective cover plate for convenient connection and installation of the rack plug plate and the mounting plate, so that the rack plug plate can also be used to position the protective assembly during installation and processing through the partition positioning portion, so that the smoking box and the protective assembly presented in this design can be directly and flexibly disassembled manually for cleaning, maintenance or replacement.

[0019] 4. The design of multiple groups of supporting legs and supporting baffle plates in the supporting assembly not only provides stable support, but also enhances the stability and impact resistance of the overall structure through the setting of triangular baffle plates and connecting plates; laying refractory bricks on the supporting baffle plates and material carts can effectively prevent the high-temperature sparks generated during the cutting process from damaging the equipment, extend the service life of the equipment, and improve safety at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the bed and the workbench in the present invention; Figure 3 It is a structural schematic diagram of the workbench of the present invention; Figure 4 for Figure 3 Enlarged view of middle part B; Figure 5 A schematic diagram of the installation frame, cross frame and support assembly in the present invention; Figure 6 It is a schematic diagram of the protection component and the smoke removal component in the present invention; Figure 7 An exploded view of the protection component and the smoke removal component of the present invention; Figure 8 It is a schematic diagram of the installation and connection of the rack insert plate and the positioning member in the present invention; Fig. 9 A top view of the protection component and the smoke removal component of the present invention; Fig.10 for Fig. 9 Sectional view of AA in the middle; Fig.11 A diagram showing the connection between the air suction duct and the smoke removal assembly through the connecting pipe in the present invention; Fig.12 It is a schematic diagram of the groove swing axis mechanism and the laser cutting head in the present invention.

[0021] In the figure: 1-side plate, 2-crossbeam, 3-bed, 4-guide rail seat, 5-laser cutting head, 6-moving mechanism, 7-workbench, 8-smoke removal component, 9-protection component, 10-suction duct, 11-suction interface, 12-rack plug plate, 13-connecting pipe, 14-rack, 15-groove swing shaft mechanism, 16-cart, 17-support beam, 18-foot support, 21-stabilizing beam, 61-moving plate; 71-installation frame, 72-cross frame, 73-support assembly, 711-installation plate, 731-support leg, 732-support baffle plate, 733-connecting plate, 734-triangular baffle plate, 7311-leg support, 7312-long leg beam, 7313-short leg beam; 81- positioning piece, 82- mounting plate, 83- smoking box, 84- smoking hole, 811- smoke exhaust interface, 831- smoke outlet, 832- horn, 833- clamping part; 91-square rod, 92-protective cover plate, 921-ventilation plate, 922-ventilation hole, 923-partition positioning part; 151 -fixed frame, 152 -rotating plate, 153 -first swing motor reducer, 154 -second swing motor reducer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0024] Combination Figures 1 to 12A laser cutting machine with a semi-hollow nesting doll bed shown in the figure comprises two side panels 1 arranged opposite to each other, the two side panels 1 are connected by a cross beam 2 arranged therebetween to form an integrated semi-hollow bed 3, the tops of the two side panels 1 are both installed with guide rail seats 4, the guide rail seats 4 are equipped with a moving mechanism 6 for driving a laser cutting head 5 to move, a workbench 7 for placing workpieces is provided inside the bed 3, the plane of the workbench 7 is parallel to the bed 3, the workbench 7 comprises a mounting frame 71, a plurality of parallel cross frames 72 are connected to the mounting frame 71, each cross frame 72 is provided with a smoke removal component 8 for extracting smoke at close range, and the upper cover of the smoke removal component 8 is provided with a protective component 9 for protecting and assisting the smoke removal component 8 in extracting smoke; like Figure 1-2 As shown, the present invention adopts a semi-hollow bed 3, and a stabilizing beam 21 for stabilizing the bed 3 is connected between the two side panels 1. Under the premise of reliable strength, the weight of the bed is reduced, and the material cost and transportation cost are saved; using the nesting doll structure, a workbench 7 for placing the workpiece is set inside the bed 3, which greatly reduces the influence of high temperature on the bed 3 during laser cutting processing, and avoids the situation that the conventional workbench bed is integrated due to the heavy workpiece and the deformation of the bed, resulting in poor processing accuracy. The guide rail seat 4 on the bed 3 ensures the Z-axis movement accuracy of the crossbeam, and the bed does not need to bear the gravity of the workpiece, which can greatly reduce the material of the bed; Combination Figure 1 , Fig.10 As shown, a suction duct 10 is provided along the inner side surface of the side panel 1, and the suction duct 10 intersects at the front of the bed 3, and a suction interface 11 connected to the external exhaust device is provided at the intersection; the suction duct 10 intersects at the front of the bed 3, and can effectively and centrally exhaust the entire bed, and the suction interface 11 is provided at the front, which is convenient for connection and disconnection with the external exhaust device and maintenance. This exhaust method is a common method of existing laser cutting machines.

[0025] like Figure 3-10 As shown, the smoke removal assembly 8 includes a positioning member 81 connected and installed on the top of the cross frame 72, the positioning member 81 is in the shape of an open top box, and a plurality of mounting plates 82 are fixedly connected on the two outer side walls of the positioning member 81, and the rack plug plate 12 is connected and installed between two adjacent positioning members 81 through the mounting plates 82, and a smoking box 83 is placed in the positioning member 81. The smoking box 83 and the two side walls of the positioning member 81 are connected and a plurality of smoking holes 84 are opened, and smoke outlet holes 831 are opened at both ends of the smoking box 83, and smoke exhaust interfaces 811 connected to the smoke outlet holes 831 are opened at both ends of the positioning member 81, and 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 on the top of the smoking box 83, and a clamping portion 833 is formed between the two horns 832; Among them, the positioning member 81 in the shape of an open top box can be fixedly installed on the top of the cross frame 72 by tightening screws or welding, and the rack plug plate 12 can be connected to the mounting plate 82 by bolts, so that the rack 14 can be stably installed on the rack plug plate 12, and the smoking box 83 is directly placed in the open top box-shaped positioning member 81, wherein the side wall of the positioning member 81 limits the smoking box 83; and the smoking holes 84 jointly opened on the positioning member 81 and the smoking box 83 are aligned and connected with each other, so as to ensure that the smoke can smoothly enter the smoking box 83 through the positioning member 81; when in use, the external exhaust device is started, and the smoke generated when the laser cutting machine cuts the workpiece will enter the smoking box 83 through the multiple smoking holes 84 with the exhaust, and then the smoke passes through The smoke outlet 831 and the smoke exhaust interface 811 enter the connecting pipe 13, and are finally sucked into the external exhaust device through the suction duct 10 along with the exhaust air flow, thereby reducing the pollution caused by laser cutting; wherein, the two ends of the positioning member 81 are provided with a smoke exhaust interface 811 connected to the smoke outlet 831, and the two ends of the positioning member 81 are connected to the suction duct 10 by means of the smoke exhaust interface 811 and the connecting pipe 13, thereby effectively sending the smoke and dust in the smoking box 83 to the suction duct 10, on the one hand, it is convenient for centralized dust extraction and avoids the need to connect the smoking box 83 to additional exhaust equipment, and on the other hand, the connecting pipe 13 is not directly connected to the smoking box 83, thereby improving the flexibility of the smoking box 83, thereby facilitating the disassembly, cleaning, maintenance or replacement of the smoking box 83.

[0026] like Figure 4-10 As shown, the protection assembly 9 includes a square rod 91 placed at the clamping portion 833, and 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, and a plurality of downwardly inclined strip ventilation holes 922 are provided on the ventilation plates 921. The ventilation plates 921 are provided with a partition positioning portion 923 for facilitating the connection and installation of the rack plug plate 12 and the mounting piece 82; Among them, Figure 7 and Fig.10 As shown, the square rod 91 is placed on the top of the smoking box 83, and the two faces of the square rod 91 are fitted with the two faces of the clamping portion 833 formed by the two corners 832, and the square rod 91 is fixedly connected to the protective cover 92, and the inclined top surfaces of the two corners 832 are fitted with the inner side surfaces of the ventilation plate 921 of the protective cover 92, so that the protective cover 92 can be stably placed through the cooperation of the square rod 91 and the clamping portion 833, and the fitting of the protective cover 92 and the corners 832; in addition, as shown in FIG. Figure 4 and Fig. 9As shown, a partition positioning portion 923 is provided on the ventilation plate 921 of the protective cover plate 92 for connecting and installing the rack plug plate 12 and the mounting plate 82. The rack plug plate 12 can also be used to position the protective component 9 during installation and processing through the partition positioning portion 923. The smoking box 83 and the protective component 9 presented in this design can be directly and flexibly disassembled manually for cleaning, maintenance or replacement. When in use, the external exhaust device is started, and the smoke generated by the laser cutting machine when cutting the workpiece is sucked into the smoking box 83 through the ventilation holes 922 provided on the ventilation plate 921, so as to protect the smoke removal component 8 while assisting it in ventilating and absorbing smoke. The inclination angle of the ventilation plate 921 is 30°-60°, and preferably 45°. Fig.10 As shown, the strip-shaped ventilation holes 922 provided on the ventilation plate 921 are all inclined downward, and the inclination angle is 5°-25°, and preferably 10°. In addition, 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.

[0027] like Figure 2-3 As shown, mounting plates 711 are fixedly connected to the tops of both ends of the mounting frame 71, rack plug plates 12 near both ends of the mounting frame 71 are connected and installed on the mounting plates 711, and multiple racks 14 are equidistantly inserted on the rack plug plates 12; the fixed connection between the mounting plate and the rack plug plates, and the equidistant insertion of the racks make the entire structure easy to install and maintain.

[0028] like Figure 5 As shown, the workbench 7 also includes a support assembly 73 connected and installed at the bottom of the installation frame 71, and the support assembly 73 includes a plurality of groups of support legs 731 that are equidistantly connected and installed at the bottom of the installation frame 71, each group of support legs 731 includes four leg supports 7311, and a long leg beam 7312 and a short leg beam 7313 are respectively connected between the four leg supports 7311; the tops of the two long leg beams 7312 are connected with support baffle plates 732 that are inclined outward, and 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 provided at the angle gap between the inclined support baffle plate 732 and the upper part of the leg supports 7311, and the triangular baffle plate 734 is connected and installed on the leg supports 7311; When in use, the support baffle plates 732 connected and installed on the two adjacent groups of support legs 731 are connected to the same cross frame 72 to form a triangular support, which enhances the stability of the overall structure and the impact resistance when facing 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 angle gap between the support baffle plate 732 and the upper part of the leg support 7311 to block the waste residues generated when the laser cutting workpiece is processed and splash out, thereby reducing the situation where the waste splashes to the outside of the machine tool; Refractory bricks are laid on the inclined support baffle plate 732, and 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 the short leg beam 7313, and refractory bricks are laid in the material cart 16; when in use, the waste and residue generated by the laser cutting workpiece will fall onto the support baffle plate 732, and finally slide onto the material cart 16, and refractory bricks are laid on the support baffle plate 732 and the material cart 16, which can effectively prevent the high-temperature sparks generated during the cutting process from damaging the equipment, extend the service life of the equipment, and improve safety. After cutting, the material cart 16 can be pulled out by the handle to collect the waste and residue.

[0029] Combination Figure 1 and Fig.12 As shown, the moving mechanism 6 includes a moving plate 61 for driving the laser cutting head 5 to move longitudinally, and a groove swing shaft mechanism 15 for swinging the laser cutting head 5 is installed on the moving plate 61. The groove swing shaft mechanism 15 includes a concave fixing frame 151 fixedly installed on the moving plate 61, and a rotating plate 152 is rotatably installed on the fixing frame 151. A first swing motor reducer 153 connected to the rotating plate 152 is installed on the side wall of the fixing frame 151, and a second swing motor reducer 153 penetrating the rotating plate 152 and connected to the laser cutting head 5 is installed on the side wall of the rotating plate 152. Machine reducer 154; when in use, the first swing motor reducer 153 can drive the laser cutting head 5 to rotate and cut by driving the rotating plate 152 to rotate, and the second swing motor reducer 154 can drive the laser cutting head 5 to rotate itself for laser cutting, thereby the bevel swing axis mechanism 15 can realize multi-angle swing of the laser cutting head 5 to adapt to different cutting requirements, and the bevel swing axis mechanism 15 increases the overall stability of the bevel mechanism, so that the dynamic performance of the whole machine is better, and solves the jitter problem caused by poor rigidity of the traditional bevel cutting head during high-speed movement.

[0030] like Figure 1 As shown, 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, wherein the support beams 17 are provided between two adjacent groups of support legs 731 for supporting the bed 3, and the foot supports 18 provided on the support beams 17 can adjust the height and level of the equipment according to actual needs.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes 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) is parallel to the bed (3); the workbench (7) comprises a mounting frame (71); a plurality of parallel horizontal frames (72) are connected to the mounting frame (71); each of the horizontal frames (72) is 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 is provided on an upper cover of the smoke removal component (8).

2. The laser cutting machine with a semi-hollow nesting doll bed according to claim 1, characterized in that: A stabilizing beam (21) for stabilizing the bed (3) is provided 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.

3. The laser cutting machine with a semi-hollow nesting doll bed according to claim 2, characterized in that: 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).

4. The laser cutting machine with a semi-hollow nesting doll bed according to claim 3 is characterized in that: 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).

5. The laser cutting machine with a semi-hollow nesting doll bed according to claim 4, 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.

6. The laser cutting machine with a semi-hollow nesting doll bed according to claim 5, 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).

7. The laser cutting machine with a semi-hollow nesting doll bed according to claim 6, 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).

8. The laser cutting machine with a semi-hollow nesting doll bed according to claim 7, 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).

9. The laser cutting machine with a semi-hollow nesting doll bed according to claim 8, 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).

10. The laser cutting machine with a semi-hollow nesting doll bed according to claim 9, 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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