Large-breadth plane cutting machine with multi-section spliced hollow lathe bed structure

Abstract

The invention relates to a large-breadth plane cutting machine with a multi-section spliced hollow lathe bed structure, which comprises two hollow lathe beds, the two hollow lathe beds are spliced and connected through a fixing device, the tops of the two hollow lathe beds are both provided with movable laser cutting devices, the two hollow lathe beds are both provided with cutting workbenches, and the cutting workbenches are provided with laser cutting devices. A plurality of supporting cutter strip seats are installed on the cutting workbench, a plurality of supporting cutter strips are installed on the supporting cutter strip seats, a plurality of fireproof brick carts are arranged at the bottom of the cutting workbench, and a plurality of floating type drag chain supporting devices are installed on one side of the hollow lathe bed. Telescopic hard limiting devices are arranged on the two sides of the two hollow bed bodies and located on one side of the splicing position of the two hollow bed bodies. An intelligent safety optical grating is arranged on the movable laser cutting device. The problems that a traditional ground rail type laser cutting machine is heavy in lathe bed structure, low in dust removal selectivity and poor in safety, and a drag chain cannot be supported are solved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting machines, and in particular to a large-format plane cutting machine with a multi-section spliced ​​hollow bed structure. Background Art

[0002] Laser cutting is an advanced processing technology that uses a high-power density laser beam to irradiate the surface of the material to achieve the purpose of cutting. This technology has the advantages of high precision, high speed, small cutting seam, small heat-affected zone, and high degree of automation. Therefore, it is widely used in modern manufacturing, especially in the metal processing industry. However, since large-format cutting of workpieces puts higher requirements on the accuracy, stability, mobility and safety of equipment, there are still some problems that need to be solved in the prior art, especially in terms of bed structure, cutting accuracy and dust removal safety. At present, traditional large-format laser cutting machines mostly adopt a ground rail structure. Although it can meet the cutting needs of large workpieces to a certain extent, the stability and accuracy of its bed structure are often difficult to meet higher requirements. In addition, since the bed of the ground rail cutting machine mostly adopts a single and relatively bulky structure, its installation and debugging process is complicated and has high requirements for the site. During the laser cutting process, the generation of smoke and splashes not only affects the cutting effect, but may also damage the equipment and even endanger the safety of the operator. Traditional cutting machines usually only have one fixed point for external dust collection system to remove dust, which is less flexible and practical. In addition, splashes may interfere with the safety grating signal of the laser cutting machine, leading to misoperation or safety hazards, and increasing the operating risks of workers. In large-format cutting machines, the drag chain needs to support the cables and pipes of important components such as the laser cutting head. As the movement of the cutting machine changes continuously, the stability and support performance of the drag chain are crucial. Most of the existing drag chain support devices lack flexibility, especially in spliced ​​bed. Long-stroke drag chains require additional support devices to avoid swinging and friction problems of the drag chain to ensure the smooth operation of the drag chain and the efficient operation of the equipment. Summary of the invention

[0003] In view of the defects existing in the above-mentioned prior art, the present invention provides a large-format plane cutting machine with a multi-section spliced ​​hollow bed structure, which solves the problems of bulky bed structure, low dust removal selectivity, poor safety and inability to be supported by drag chains of traditional ground-rail laser cutting machines.

[0004] The objective of the present invention is achieved through the following technical scheme: a large-format plane cutting machine with a multi-section spliced ​​hollow bed structure, comprising two hollow beds, the two hollow beds are spliced ​​and connected by a fixing device, a mobile laser cutting device is arranged on the top of the two hollow beds, a cutting workbench is arranged on the two hollow beds, a plurality of supporting blade seats are installed on the cutting workbench, a plurality of supporting blade seats are installed on the supporting blade seats, a plurality of fireproof brick trolleys are arranged at the bottom of the cutting workbench, a plurality of floating drag chain supporting devices are installed on one side of the hollow bed, a telescopic hard limit device is arranged on both sides of the two hollow beds at one side of the splicing of the two hollow beds, and an intelligent safety grating is arranged on the mobile laser cutting device.

[0005] Furthermore, the hollow bed includes two hollow beams, connecting hollow beams are connected on both sides of the two hollow beams, and a number of supporting hollow beams and reinforcing beams are evenly cross-connected between the two hollow beams. A front exhaust port is provided on one side of one of the connecting hollow beams, and a side exhaust port is provided on one side of the hollow beam. The supporting hollow beams are through-connected with the hollow beams, a linear guide rail mounting gasket and a rack mounting gasket are installed on the top of the hollow beam, and a number of follow-up damper assemblies are provided on one side of the hollow beam.

[0006] Furthermore, the fixing device includes an extension plate, and one end of the hollow beam is connected to two of the extension plates through reinforcing ribs, and the extension plates of the two hollow beams corresponding to the two hollow bed bodies are fixedly connected by bolts, and one end of the hollow beam is located between the two extension plates and a fixing plate is installed, and the fixing plates of the two hollow beams corresponding to the two hollow bed bodies are fixedly connected to a connecting plate by bolts.

[0007] Furthermore, the mobile laser cutting device includes two first linear guides and two first racks, the first linear guides and the first racks are respectively mounted on the linear guide mounting gasket and the rack mounting gasket, the top of the first linear guide is connected to a mobile mounting frame, a first servo motor is mounted on the mobile mounting frame, the output end of the first servo motor is connected to a first gear, the first gear is meshed with the first rack, the tops of the two mobile mounting frames are commonly connected to a crossbeam, the top and one side of the crossbeam are both equipped with a second linear guide, the top of the beam is equipped with a second rack, the two second linear guides are commonly connected to a T-shaped mobile mounting frame, the T-shaped mobile mounting frame A second servo motor is installed on the frame, and a second gear is connected to the output end of the second servo motor. The second gear is meshed with the second rack. A ball screw linear slide module is installed on one side of the T-shaped mobile mounting frame, and a laser cutting head is installed on the slide of the ball screw linear slide module. Anti-splash protective covers are installed on both sides of the T-shaped mobile mounting frame at the outside of the laser cutting head. Third linear guides are installed on both sides of the anti-splash protective covers, and a fire curtain is connected to one side of the third linear guide. A first lifting cylinder is installed on the front side of the anti-splash protective cover, and the output end of the first lifting cylinder is connected to the fire curtain. Two symmetrical intelligent safety gratings are installed on both ends of the beam.

[0008] Furthermore, a first drag chain placement groove is installed on one side of the hollow beam through a plurality of triangular support frames, and a second drag chain placement groove is installed on one side of the cross beam through a plurality of triangular support frames.

[0009] Furthermore, the floating drag chain support device includes an L-shaped mounting plate, which is mounted on one side of the hollow beam, and two shells are connected to the top of the transverse section of the L-shaped mounting plate, a fixed plate is connected between the two inner side walls of the shell, a support rod is connected between the fixed plate and the inner side wall of the shell, a rotating plate is slidably connected to the surface of the support rod, and the bottom of the rotating plate is hingedly connected to the top of the transverse section of the L-shaped mounting plate by a hinge, the surface of the support rod is located between the rotating plate and the side wall of the shell and a spring is provided, the top of the rotating plate is rotatably connected to the pulley, and the side wall of the shell is provided with a groove for the rotation of the pulley, and the bottom of the first drag chain placement groove is connected to the transverse section of the L-shaped mounting plate and is located between the two shells.

[0010] Furthermore, the telescopic hard limit device includes a guide plate with a groove, the guide plate is installed on one side of the hollow beam, a second telescopic cylinder is installed at the bottom of the guide plate, a limit plate is slidably connected in the groove of the guide plate, and a limit shock-absorbing pad is connected to the top of the limit plate.

[0011] Furthermore, both the front air intake vent and the side air intake vent may be installed with external air exhaust and dust removal equipment for exhausting and removing dust.

[0012] Furthermore, the follower damper assembly includes a cylinder mounting plate, an air outlet is opened on the inner side of the hollow beam, the cylinder mounting plate is connected to the inner wall of the hollow beam, a third telescopic cylinder is installed on the cylinder mounting plate, a sealing plate matching the air outlet is connected to the output end of the third telescopic cylinder, and a protective cover is installed on the outer side of the hollow beam outside the third telescopic cylinder.

[0013] Furthermore, a drag chain is disposed in each of the first drag chain placement groove and the second drag chain placement groove, and one end of the drag chain is connected to the laser cutting head.

[0014] In summary, compared with the prior art, the present invention has the following advantages:

[0015] 1. The present invention adopts a spliced ​​bed design, which significantly expands the stroke in the Y-axis direction, making the machine tool more flexible when cutting large-sized workpieces. The hollow bed is spliced ​​together to make the bed have higher stability and stronger load-bearing capacity, while reducing the overall weight of the bed. Cross-connected support beams and reinforcing beams are used to form a stable support structure in the spliced ​​bed, ensuring that the machine can still maintain accuracy and stability when working under high load. The cutting head can move flexibly in the three axes of X, Y, and Z to ensure that large-format workpieces can be processed efficiently with high cutting accuracy. Driven by a servo motor and a rack, the movement accuracy of the laser cutting head can achieve more refined cutting operations.

[0016] 2. The two spliced ​​bed frames use a unified exhaust duct, and the position of the exhaust port can be flexibly selected as needed. The smoke and dust generated during the cutting process can be efficiently removed through the front exhaust port and the side exhaust port combined with external dust removal equipment. This design ensures a clean working environment and effectively protects the health of operators. The follow-up damper can open and close automatically to ensure that the smoke and dust generated during the cutting process can be sucked into the system and discharged in time, improving the cutting effect and working environment.

[0017] 3. This design uses a floating drag chain support device to ensure that the movement of the drag chain in the Y-axis direction is not restricted, especially in the long stroke after the bed is spliced. The support and pulley cooperate to avoid the drooping and dragging of the drag chain, and can effectively support the drag chain. Even at the front end of the cutting equipment, the stability and effective support of the drag chain can be maintained. This design avoids the problem of loose or unstable drag chains that may be caused by traditional drag chain supports, thereby improving the working efficiency and operating stability of the equipment.

[0018] 4. The present invention adopts intelligent safety grating detection technology. By installing intelligent safety gratings before and after the beam, it can detect whether there are obstacles in the working area in real time. During the operation of the equipment, when the grating detects the existence of obstacles on the working surface, the system will immediately trigger the emergency brake of the first servo motor and stop the operation, effectively ensuring the safety of the operator.

[0019] 5. In order to reduce the interference of splashes on the safety grating during laser cutting, which may lead to misjudgment and endanger the safety of personnel and equipment, a specially designed anti-splash protective cover can effectively prevent splashes from entering the grating area, avoid misjudgment, and improve operational safety. The equipped fire curtain can automatically drop during laser cutting to further prevent splashes from interfering with the safety grating and ensure the accuracy of the grating signal.

[0020] 6. The telescopic hard limit device designed in the present invention can provide direct mechanical blocking effect when other protective measures fail to work, thereby ensuring the safe limit of the beam. The limit shock-absorbing pad can effectively buffer the impact and reduce the degree of damage to the equipment. Normally, the second telescopic cylinder is in a retracted state and does not affect the normal operation of the equipment.

[0021] 7. This design uses modular bed splicing and an adjustable exhaust system to make the equipment not only more flexible in installation and commissioning, but also more adaptable and scalable. Whether it is the layout adjustment of the equipment or the personalized needs of the exhaust device, reasonable configuration and flexible design can meet the actual production needs, improving the versatility of the equipment and the stability of long-term operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the hollow bed structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the hollow bed structure of the present invention;

[0025] Figure 4 This is an enlarged structural diagram of part A of the present invention;

[0026] Figure 5 This is an enlarged structural diagram of part B of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the mobile laser cutting device of the present invention;

[0029] Figure 8 This is a schematic diagram of the structure of the mobile laser cutting device of the present invention;

[0030] Fig. 9 This is a schematic diagram of the structure of the mobile laser cutting device of the present invention;

[0031] Fig.10 This is a schematic diagram of the structure of the mobile laser cutting device of the present invention;

[0032] Fig.11 This is a schematic diagram of the structure of the floating drag chain support device of the present invention;

[0033] Fig.12 It is a schematic structural diagram of the telescopic hard limit device of the present invention.

[0034] In the figure: 1-hollow bed, 2-fixed device, 3-mobile laser cutting device, 4-cutting workbench, 5-support blade seat, 6-support blade, 7-fire brick cart, 8-floating drag chain support device, 9-telescopic hard limit device, 10-intelligent safety grating, 101-hollow beam, 102-connecting hollow beam, 103-supporting hollow beam, 104-reinforcement beam, 105-front exhaust port, 106-side exhaust port, 107-linear guide rail mounting gasket, 108-rack mounting gasket, 109-follow-up damper assembly, 201-extension plate, 202-mounting plate, 203-connecting plate, 301-first linear guide, 302-first rack, 303-mobile mounting frame, 304-first servo motor, 305-first gear, 306-crossbeam, 307-second linear guide, 308-second rack, 309-T-type mobile mounting frame, 310-second servo motor, 311-second gear, 312-ball screw linear slide module, 313-laser cutting head, 314-anti-splash protective cover, 315-third linear guide, 316-fire curtain, 317-first lifting cylinder, 11-first drag chain placement slot, 111-second drag chain placement slot, 12-drag chain, 801-L-type mounting plate, 802-shell, 803-fixed plate, 804-support rod, 805-rotating plate, 806-spring, 807-pulley, 901-guide plate, 902-second telescopic cylinder, 903-limiting plate, 904-limiting shock-absorbing pad, 1091-cylinder mounting plate, 1092-air outlet, 1093-third telescopic cylinder, 1094-sealing plate, 1095-protective cover. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further specifically described below through specific embodiments, but the present invention is not limited to these embodiments.

[0036] Combination Figures 1 to 12A large-format plane cutting machine with a multi-section spliced ​​hollow bed structure comprises two hollow beds 1, the two hollow beds 1 are spliced ​​and connected by a fixing device 2, a mobile laser cutting device 3 is arranged on the top of the two hollow beds 1, a cutting workbench 4 is arranged on the two hollow beds 1, a plurality of supporting blade seats 5 are installed on the cutting workbench 4, a plurality of supporting blade seats 6 are installed on the supporting blade seats 5, a plurality of fireproof brick carts 7 are arranged at the bottom of the cutting workbench 4, a plurality of floating drag chain supporting devices 8 are installed on one side of the hollow bed 1, a telescopic hard limit device 9 is arranged on both sides of the two hollow beds 1 at one side of the splicing of the two hollow beds 1, and an intelligent safety grating 10 is arranged on the mobile laser cutting device 3.

[0037] Combination Figures 1 to 3 The hollow bed 1 includes two hollow beams 101, and a connecting hollow beam 102 is connected on both sides of the two hollow beams 101. A plurality of supporting hollow beams 103 and reinforcing beams 104 are evenly cross-connected between the two hollow beams 101. A front exhaust port 105 is opened on one side of the connecting hollow beam 102, and a side exhaust port 106 is opened on one side of the hollow beam 101. The supporting hollow beam 103 is connected to the hollow beam 101, and the top of the hollow beam 101 is installed There are linear guide rail mounting gaskets 107 and rack mounting gaskets 108, and a plurality of follower damper assemblies 109 are arranged on one side of the hollow beam 101; the supporting hollow beam 103 is through-connected with the hollow beam 101, and the hollow beam 101 and the supporting hollow beam 103 are both hollow, and the cavities of the hollow bed 1 after splicing are all through-connected, and external exhaust and dust removal equipment can be selected at the front exhaust port 105 and the two side exhaust ports 106, which effectively reduces the accumulation of dust and smoke.

[0038] Combination Figure 4 The fixing device 2 includes an extension plate 201, and one end of the hollow beam 101 is connected to two extension plates 201 through reinforcing ribs. The extension plates 201 of the two hollow beams 101 corresponding to the two hollow bed bodies 1 are fixedly connected by bolts. One end of the hollow beam 101 is located between the two extension plates 201 and a mounting plate 202 is installed. The mounting plates 202 of the two hollow beams 101 corresponding to the two hollow bed bodies 1 are fixedly connected with a connecting plate 203 through bolts. The four hollow beams 101 of the two hollow bed bodies 1 are spliced ​​together accordingly, and then the corresponding extension plates 201 are fixedly connected by bolts, and then the connecting plate 203 is fixedly connected to the mounting plate 202 by bolts, ensuring the firm splicing of the two hollow bed bodies, being able to withstand a large cutting load, increasing the durability of the equipment, avoiding loosening at the splicing joints, and improving the stability of the equipment.

[0039] Combination Figures 7 to 10The mobile laser cutting device 3 includes two first linear guides 301 and two first racks 302. The first linear guides 301 and the first racks 302 are respectively mounted on the linear guide mounting pads 107 and the rack mounting pads 108. The top of the first linear guide 301 is connected to a mobile mounting frame 303. The mobile mounting frame 303 is mounted with a first servo motor 304. The output end of the first servo motor 304 is connected to a first gear 305. The first gear 305 is meshed with the first rack 302. The tops of the two mobile mounting frames 303 are commonly connected to a crossbeam 306. The crossbeam 30 A second linear guide 307 is installed on the top and one side of the crossbeam 306, a second rack 308 is installed on the top of the crossbeam 306, the two second linear guides 307 are connected to a T-shaped mobile mounting frame 309, a second servo motor 310 is installed on the T-shaped mobile mounting frame 309, the output end of the second servo motor 310 is connected to a second gear 311, the second gear 311 is meshed with the second rack 308, a ball screw linear slide module 312 is installed on one side of the T-shaped mobile mounting frame 309, a laser cutting head 313 is installed on the slide of the ball screw linear slide module 312, and the T-shaped mobile mounting frame 309 is provided with a plurality of second linear guides 307, and a plurality of second linear guides 307 are provided with a plurality of second racks 308 ... Anti-splash shields 314 are installed on both sides of the mounting frame 309 outside the laser cutting head 313, and third linear guides 315 are installed on both sides of the anti-splash shield 314. A fire curtain 316 is connected to one side of the third linear guide 315. A first lifting cylinder 317 is installed on the front side of the anti-splash shield 314. The output end of the first lifting cylinder 317 is connected to the fire curtain 316. Two symmetrical intelligent safety gratings 10 are installed at both ends of the beam 306. The first and second servo motors cooperate with the rack and guide rail system to provide precise motion control, ensuring that the laser cutting head 313 can move freely in X, Y, Precise positioning on the Z axis improves cutting accuracy. The intelligent safety grating 10 can detect in real time whether there are obstacles in the working area. During equipment operation, when the grating detects the existence of an obstacle on the working surface, the system will immediately trigger the first servo motor 304 for emergency braking and stop operation, effectively ensuring the safety of the operator. The anti-splash protective cover 314 can effectively prevent splashes from entering the grating area, avoid misjudgment, and improve operational safety. The fire curtain 316 can automatically descend during the laser cutting process to further prevent splashes from interfering with the safety grating and ensure the accuracy of the grating signal.

[0040] Combination Figure 1 , Figure 7 A first drag chain placement groove 11 is installed on one side of the hollow beam 101 through a plurality of triangular support frames, and a second drag chain placement groove 111 is installed on one side of the cross beam 306 through a plurality of triangular support frames, providing a convenient space for storing the drag chain 12.

[0041] Combination Fig.11The floating drag chain support device 8 includes an L-shaped mounting plate 801, which is mounted on one side of the hollow beam 101. Two shells 802 are connected to the top of the transverse section of the L-shaped mounting plate 801. A fixed plate 803 is connected between the inner side walls of the shell 802. A support rod 804 is connected between the fixed plate 803 and the inner side wall of the shell 802. A rotating plate 805 is slidably connected to the surface of the support rod 804. The bottom of the rotating plate 805 is hingedly connected to the top of the transverse section of the L-shaped mounting plate 801 through a hinge. The surface of the support rod 804 is located between the rotating plate 805 and the side wall of the shell 802, and a spring 806 is sleeved on the rotating plate 805 and the side wall of the shell 802. A pulley 807 is rotatably connected to the top of the rotating plate 805. The side wall of the shell 802 is provided with a groove for the rotation of the pulley 807. The bottom of the first drag chain placement slot 11 is connected to the transverse section of the L-shaped mounting plate 801, and the position Between the two shells 802, in actual production, the laser cutting head and various servo motors all need the drag chain 12 to organize the wiring harness. Since the Y-axis stroke of the spliced ​​bed is too large, the drag chain 12 cannot be supported when moving, so a floating drag chain support device 8 is designed to support the drag chain 12. The drag chain 12 will be U-shaped, and the bottom of the drag chain 12 will be placed in the first drag chain placement groove 11, and the top of the drag chain 12 will slide on the two pulleys 807 for support. When the U-shaped part of the drag chain 12 passes between the two shells 802, the drag chain 12 will squeeze the two pulleys 807, forcing the rotating plate 805 to tilt along the hinge. At this time, the two pulleys 807 will have enough distance to allow the U-shaped part of the drag chain 12 to pass, and then the rotating plate 805 and the pulley 807 are restored by the spring 806.

[0042] Combination Fig.12 The telescopic hard limit device 9 includes a guide plate 901 with a groove. The guide plate 901 is installed on one side of the hollow beam 101. A second telescopic cylinder 902 is installed at the bottom of the guide plate 901. A limit plate 903 is slidably connected in the groove of the guide plate 901. The top of the limit plate 903 is connected to a limit shock-absorbing pad 904. When other protection measures fail, the second telescopic cylinder 902 will drive the limit plate 903 upward, and the limit shock-absorbing pad 904 will block the mobile laser cutting device 3 from continuing to operate, providing a direct mechanical blocking effect. Normally, the second telescopic cylinder 902 is in a retracted state and does not affect the normal operation of the equipment.

[0043] Combination Figure 1 and Figure 3 Both the front exhaust port 105 and the side exhaust port 106 can be installed with external exhaust and dust removal equipment for exhaust and dust removal, which can effectively remove the smoke and dust generated during the cutting process, improve the working environment, and improve the cutting accuracy. It can be flexibly installed and adjusted according to specific needs, and more efficiently clean the pollutants in the working area.

[0044] Combination Figure 1 , Figure 3The follow-up damper assembly 109 includes a cylinder mounting plate 1091, and an air port 1092 is opened on the inner side of the hollow beam 101. The cylinder mounting plate 1091 is connected to the inner wall of the hollow beam 101, and a third telescopic cylinder 1093 is installed on the cylinder mounting plate 1091. The output end of the third telescopic cylinder 1093 is connected to a sealing plate 1094 adapted to the air port 1092. A protective cover 1095 is installed outside the third telescopic cylinder 1093 on the outer side of the hollow beam 101. When the laser cutting head 313 is located at a certain place for cutting, the third telescopic cylinder 1093 under the laser cutting head 313 drives the sealing plate 1094 to be pushed out. At this time, the air port 1092 will be opened, and the smoke will be sucked into the exhaust dust removal equipment through the inner cavity of the hollow beam 101 to achieve the effect of follow-up dust removal, while the air ports at other positions are not opened, thereby improving the dust extraction effect.

[0045] Combination Figure 1 , Figure 7 A drag chain 12 is provided in both the first drag chain placement groove 11 and the second drag chain placement groove 111. One end of the drag chain 12 is connected to the laser cutting head 313, ensuring that the cables, wiring harnesses, etc. of the laser cutting head 313 can be transmitted safely and efficiently without being disturbed or damaged by the outside world.

[0046] Working principle: First, connect the two hollow bed frames 1 through the fixing device 2 to ensure that the bed frames are firmly and stably spliced, and then splice the four hollow beams 101 of the two hollow bed frames 1 together accordingly, and then fix the corresponding extension plates 201 with bolts, and then fix the connecting plate 203 and the mounting plate 202 with bolts. At this time, the two hollow bed frames 1 are fixed together. Since the supporting hollow beam 103 is connected with the hollow beam 101, the hollow beam 101 and the supporting hollow beam 103 are both hollow, so the cavity of the spliced ​​hollow bed 1 is all through. You can choose to connect an external exhaust dust removal device at the front exhaust port 105 and the two side exhaust ports 106, and when the laser cutting head 313 is cutting During cutting, when the laser cutting head 313 is located at a certain place for cutting, the third telescopic cylinder 1093 below the laser cutting head 313 drives the sealing plate 1094 to be pushed out, and the air outlet 1092 will be opened at this time, and the smoke will be sucked into the exhaust dust removal equipment through the inner cavity of the hollow beam 101 to achieve the effect of follow-up dust removal, and the first servo motor 304 drives the first gear 305 to engage with the first rack 302, so that the mobile mounting frame 303 can move on the first linear guide rail 301, that is, the Y-axis movement, and the second servo motor 310 drives the second gear 311 to engage with the second rack 308, so that the T-shaped mobile mounting frame 309 can move on the second linear guide rail 307, that is, the X-axis movement, and the ball bearing The screw linear slide module 312 enables the laser cutting head 313 to move up and down on the slide, that is, the Z-axis movement. At this time, the laser cutting head 313 can move freely on the X, Y, and Z axes. During the cutting process, splashes may affect the grating signal, resulting in misjudgment, thereby endangering the safety of personnel and equipment. The anti-splash protective cover 314 effectively reduces the interference of splashes on the signal of the intelligent safety grating 10. The fire curtain 316 is driven by the first lifting cylinder 317 to move along the third linear guide rail 315 to further prevent splashes from affecting the grating signal. In actual production, the laser cutting head and various servo motors need to drag the chain 12 to organize the wiring harness. Since the Y-axis stroke of the spliced ​​bed is too large, the drag chain 1 2 cannot be supported when moving, so a floating drag chain support device 8 is designed to support the drag chain 12. The drag chain 12 will be U-shaped, with the bottom of the drag chain 12 placed in the first drag chain placement groove 11, and the top of the drag chain 12 will slide on the two pulleys 807 for support. When the U-shaped part of the drag chain 12 passes between the two shells 802, the drag chain 12 will squeeze the two pulleys 807, forcing the rotating plate 805 to tilt along the hinge. At this time, the two pulleys 807 will have enough distance to allow the U-shaped part of the drag chain 12 to pass, and then the rotating plate 805 and the pulley 807 are restored by the spring 806. The intelligent safety grating 10 is installed before and after the crossbeam 306 to realize real-time detection of whether there are obstacles in the working area.During the operation of the equipment, when the grating detects the existence of an obstacle on the working surface, the system will immediately trigger the first servo motor 304 to perform emergency braking and stop the operation, effectively ensuring the safety of the operator. When other protective measures fail, the second telescopic cylinder 902 will drive the limit plate 903 upward, and the limit shock-absorbing pad 904 will block the mobile laser cutting device 3 from continuing to operate, providing a direct mechanical blocking effect. Normally, the second telescopic cylinder 902 is in a retracted state and does not affect the normal operation of the equipment.

[0047] The implementation of the present invention is not limited to the above embodiments. Without departing from the spirit and scope of the present invention, ordinary technicians in this field can make various changes and improvements to the present invention in form and detail, and these are considered to fall within the protection scope of the present invention.

Claims

1. A large-format plane cutting machine with a multi-section spliced ​​hollow bed structure, comprising two hollow beds (1), characterized in that: The two hollow bed frames (1) are spliced ​​and connected by a fixing device (2), and a mobile laser cutting device (3) is arranged on the top of the two hollow bed frames (1). A cutting workbench (4) is arranged on the two hollow bed frames (1), and a plurality of supporting blade seats (5) are installed on the cutting workbench (4), and a plurality of supporting blade seats (6) are installed on the supporting blade seats (5). A plurality of fireproof brick trolleys (7) are arranged at the bottom of the cutting workbench (4). A plurality of floating drag chain supporting devices (8) are installed on one side of the hollow bed frame (1), and a telescopic hard limit device (9) is arranged on both sides of the two hollow bed frames (1) at one side of the splicing of the two hollow bed frames (1), and an intelligent safety grating (10) is arranged on the mobile laser cutting device (3).

2. According to claim 1, a large-format plane cutting machine with a multi-section spliced ​​hollow bed structure is characterized by: The hollow bed (1) comprises two hollow beams (101), both sides of the two hollow beams (101) are connected with connecting hollow beams (102), a plurality of supporting hollow beams (103) and reinforcing beams (104) are evenly cross-connected between the two hollow beams (101), one side of the connecting hollow beams (102) is provided with a front air exhaust port (105), one side of the hollow beam (101) is provided with a side air exhaust port (106), the supporting hollow beam (103) is connected through the hollow beam (101), a linear guide rail mounting gasket (107) and a rack mounting gasket (108) are installed on the top of the hollow beam (101), and a plurality of follower damper assemblies (109) are arranged on one side of the hollow beam (101).

3. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 2 is characterized by: The fixing device (2) comprises an extension plate (201), one end of the hollow beam (101) is connected to two of the extension plates (201) via reinforcing ribs, the extension plates (201) of the two hollow beams (101) corresponding to the two hollow bed frames (1) are fixedly connected via bolts, one end of the hollow beam (101) is located between the two extension plates (201) and is provided with a mounting plate (202), and the mounting plates (202) of the two hollow beams (101) corresponding to the two hollow bed frames (1) are fixedly connected to a connecting plate (203) via bolts.

4. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 3 is characterized by: The mobile laser cutting device (3) comprises two first linear guide rails (301) and two first racks (302), wherein the first linear guide rails (301) and the first racks (302) are respectively mounted on the linear guide rail mounting pad (107) and the rack mounting pad (108), a mobile mounting frame (303) is connected to the top of the first linear guide rail (301), a first servo motor (304) is mounted on the mobile mounting frame (303), and the first servo motor (304) ) output end is connected to a first gear (305), the first gear (305) is meshed with the first rack (302), the tops of the two mobile mounting frames (303) are commonly connected to a crossbeam (306), the top and one side of the crossbeam (306) are both installed with a second linear guide rail (307), the top of the crossbeam (306) is installed with a second rack (308), the two second linear guide rails (307) are commonly connected to a T-shaped mobile mounting frame (309), the T-shaped mobile mounting frame (3 09), a second servo motor (310) is installed on the output end of the second servo motor (310), the second gear (311) is connected to the second rack (308), the second gear (311) is meshed with the second rack (308), a ball screw linear slide module (312) is installed on one side of the T-shaped movable mounting frame (309), a laser cutting head (313) is installed on the slide of the ball screw linear slide module (312), and the laser cutting head (313) is located on both sides of the T-shaped movable mounting frame (309). A splash-proof shield (314) is installed on the outside of the splash-proof shield (313), third linear guide rails (315) are installed on both sides of the splash-proof shield (314), a fire curtain (316) is connected to one side of the third linear guide rail (315), a first lifting cylinder (317) is installed on the front side of the splash-proof shield (314), an output end of the first lifting cylinder (317) is connected to the fire curtain (316), and two symmetrical intelligent safety gratings (10) are installed at both ends of the crossbeam (306).

5. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 4, characterized in that: A first drag chain placement groove (11) is installed on one side of the hollow beam (101) via a plurality of triangular support frames, and a second drag chain placement groove (111) is installed on one side of the cross beam (306) via a plurality of triangular support frames.

6. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 5, characterized in that: The floating drag chain support device (8) comprises an L-shaped mounting plate (801), wherein the L-shaped mounting plate (801) is mounted on one side of the hollow beam (101), wherein the top of the transverse section of the L-shaped mounting plate (801) is connected to two shells (802), wherein a fixing plate (803) is connected between the inner side walls of the shells (802), wherein a support rod (804) is connected between the fixing plate (803) and the inner side wall of the shells (802), wherein a rotating plate (805) is slidably connected to the surface of the supporting rod (804), and wherein the rotating plate (805) is ) is hingedly connected to the top of the transverse section of the L-shaped mounting plate (801) through a hinge, the surface of the support rod (804) is located between the rotating plate (805) and the side wall of the shell (802) and is provided with a spring (806), the top of the rotating plate (805) is rotatably connected to a pulley (807), and the side wall of the shell (802) is provided with a groove for rotating the pulley (807), the bottom of the first drag chain placement groove (16) is connected to the transverse section of the L-shaped mounting plate (801), and is located between the two shells (802).

7. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 6, characterized in that: The telescopic hard limit device (9) comprises a guide plate (901) with a groove, the guide plate (901) being mounted on one side of the hollow beam (101), a second telescopic cylinder (902) being mounted at the bottom of the guide plate (901), a limit plate (903) being slidably connected in the groove of the guide plate (901), and a limit shock-absorbing pad (904) being connected to the top of the limit plate (903).

8. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 7, characterized in that: Both the front air intake port (105) and the side air intake port (106) may be equipped with external air exhaust and dust removal equipment for exhausting and removing dust.

9. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 8, characterized in that: The follower damper assembly (109) comprises a cylinder mounting plate (1091), an air port (1092) is provided on the inner side of the hollow beam (101), the cylinder mounting plate (1091) is connected to the inner side wall of the hollow beam (101), a third telescopic cylinder (1093) is mounted on the cylinder mounting plate (1091), an output end of the third telescopic cylinder (1093) is connected to a sealing plate (1094) adapted to the air port (1092), and a protective cover (1095) is mounted on the outer side of the hollow beam (101) and outside the third telescopic cylinder (1093).

10. The large-format plane cutting machine with a multi-section spliced ​​hollow bed structure according to claim 9, characterized in that: A drag chain (12) is disposed in both the first drag chain placement groove (11) and the second drag chain placement groove (111), and one end of the drag chain (12) is connected to the laser cutting head (313).

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