A laser cutting machine bed

Abstract

This invention discloses a laser cutting machine bed, including a support platform horizontally mounted on a cutting base. The top surface of the support platform is recessed downwards to form a water storage groove. Multiple horizontally distributed toothed plates are arranged within the groove. The support platform is equipped with a drive mechanism, which is connected to each toothed plate for independent lifting and lowering. The laser cutter moves directly above the support platform to cut the sheet metal. As the laser cutter moves, the corresponding toothed plate descends and is submerged in the water inside the groove, causing blown-off slag to fall directly into the water and prevent accumulation on the toothed plate. When the laser cutter moves away, the toothed plate rises again to support the sheet metal. This ensures stable support of the sheet metal while reducing slag accumulation on the toothed plate, allowing the sheet metal to be placed flat and stable, ultimately improving the cutting accuracy.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting machine technology, and particularly relates to a laser cutting machine bed. Background Technology

[0002] Laser cutting machines use a high-power-density laser beam to scan the surface of a material, heating it to several thousand to tens of thousands of degrees Celsius in a very short time, causing the material to melt or vaporize. High-pressure gas is then used to blow the molten or vaporized material away from the cut, thus achieving the purpose of cutting the material.

[0003] Existing laser cutting machines have a toothed plate installed on the bed to support the sheet metal. During the cutting process, the molten metal is blown onto the toothed plate and solidifies on it after cooling. As the usage time increases, a large amount of slag solidified on the toothed plate accumulates, which can cause uneven contact between the workpiece and the toothed plate. During cutting, the workpiece may shake or shift, resulting in offset of the cutting line and increased dimensional error.

[0004] Therefore, it is necessary to improve the existing laser cutting machine bed technology. Summary of the Invention

[0005] The purpose of this invention is to overcome the defects in the prior art and provide a laser cutting machine bed to improve the accuracy of laser cutting workpieces.

[0006] To achieve the above objectives, the specific technical solution for the laser cutting machine bed of the present invention is as follows:

[0007] A laser cutting machine bed includes a support platform horizontally disposed on a cutting seat. The top surface of the support platform is recessed downward to form a groove for storing water. Multiple horizontally distributed toothed plates are arranged in the groove. The support platform is provided with a drive mechanism, which is transversely connected to each of the toothed plates and is used to drive each of the toothed plates to lift and lower independently.

[0008] Preferably, the drive mechanism includes a piston fixedly connected to the toothed plate via a fixed rod and a cylinder fixedly connected to the support platform. The piston is slidably disposed inside the cylinder and is sealed to the cylinder. The support platform has a through hole communicating with the groove and the cylinder. The fixed rod is vertically disposed through the through hole. The cylinder is connected to an inflation / deflation assembly.

[0009] Preferably, the inflation / deflation assembly includes an air pump fixedly connected to the support platform, an air pump outlet connected to an inflation pipe, the inflation pipe being connected to the bottom end of the cylinder via a branch pipe, a check valve being provided between the inflation pipe and the branch pipe, a pressure relief pipe being connected to the bottom end of the cylinder, and a switch assembly for controlling its on / off state being provided at the outlet end of the pressure relief pipe.

[0010] Preferably, the top of the cutting base is fixedly connected to a third slide rail for mounting a laser cutter. The extension direction of the third slide rail is a first direction. Multiple linkage mechanisms are arranged at equal intervals on the cutting base along the first direction. The number of linkage mechanisms is equal to the number of switch components and corresponds one-to-one. The laser cutter controls the opening and closing of the switch components through the linkage mechanisms.

[0011] Preferably, the cutting seat is also connected to a feeding seat, and a first slide rail and a second slide rail are fixedly connected between the cutting seat and the feeding seat. The first slide rail and the second slide rail both extend parallel to the first direction and are slidably provided with a support platform. Limit switches are provided at the ends of the first slide rail and the second slide rail.

[0012] Preferably, the outlet end of the pressure relief pipe extends horizontally, and an exhaust hole is provided on the side of the outlet end. The switch assembly includes a sealing sleeve that is coaxially slidably disposed on the outer periphery of the pressure relief pipe. The length of the sealing sleeve is greater than the length of the exhaust hole. A third spring is provided between the sealing sleeve and the pressure relief pipe. A top plate is fixedly connected to the sealing sleeve through a transmission rod. A positioning block is also fixedly connected to the pressure relief pipe.

[0013] Preferably, the linkage mechanism includes a slider that is raised and lowered and two push rods that are slidably arranged horizontally. The sliding direction of the push rods is parallel to the axis of the sealing sleeve, and the horizontal height of the two push rods is consistent with the horizontal height of the sealing sleeves located on the two support platforms. The slider is raised and lowered by the laser cutter, and the slider pushes the two push rods to move horizontally synchronously.

[0014] Preferably, the cutting seat has a stepped hole, the push rod slides in the stepped hole, and a second spring is provided between the push rod and the stepped hole;

[0015] The cutting seat is also provided with vertically distributed lifting grooves. The slider slides in cooperation with the lifting grooves. A first spring is provided between the slider and the lifting groove. A limiting block that abuts against the slider is provided in the lifting groove. A flexible connecting line is fixedly connected between the slider and the push rod. The top of the slider extends upward to the outside of the lifting groove. An arc-shaped guide is fixedly connected to the top of the slider.

[0016] Preferably, the through hole is sealed to the fixing rod by a sealing ring, and a pressure stabilizing hole is provided at the top of the cylinder.

[0017] Preferably, a plurality of water-absorbing blocks are fixedly connected inside the groove, the water-absorbing blocks are staggered with the toothed plate, the height of the water-absorbing blocks is greater than or equal to the height of the toothed plate, and the liquid level inside the groove is greater than the height of the water-absorbing blocks.

[0018] The laser cutting machine bed of the present invention has the following advantages: the laser cutter moves directly above the support platform to cut the plate. As the laser cutter moves, the toothed plate at the corresponding position descends and is immersed in the water inside the groove, so that the blown-off slag falls directly into the water and cannot accumulate on the toothed plate. When the laser cutter moves away, the toothed plate rises again to support the plate, thereby ensuring stable support for the plate while reducing the accumulation of slag on the toothed plate, so that the plate can be placed flat and stable, and ultimately improving the cutting accuracy of the plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the laser cutting machine bed of the present invention;

[0020] Figure 2 This is a schematic diagram of the connection structure between the cutting seat and the loading seat of the present invention;

[0021] Figure 3 This is a schematic diagram of the cutting seat of the present invention;

[0022] Figure 4 This is a schematic diagram of the lifting trough of the present invention;

[0023] Figure 5 This is a schematic diagram of the linkage mechanism of the present invention;

[0024] Figure 6 This is a schematic diagram of the installation structure of the linkage mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of the connection structure between the support platform and the toothed plate of the present invention;

[0026] Figure 8 This is a schematic diagram of the support platform of the present invention;

[0027] Figure 9 This is a schematic diagram of the drive mechanism of the present invention;

[0028] Figure 10 This is a cross-sectional view of the support platform of the present invention;

[0029] Figure 11 This is a schematic diagram of the structure of the switching assembly of the present invention;

[0030] Figure 12 This is a schematic diagram of the toothed plate of the present invention;

[0031] Explanation of markings in the diagram: 1. Cutting seat; 2. Loading seat; 3. Support platform; 4. Linkage mechanism; 101. First slide rail; 102. Second slide rail; 103. Third slide rail; 104. Limit switch; 105. Lifting groove; 106. Limit block; 107. Stepped hole; 108. Insertion groove; 301. Switch assembly; 302. Water absorption block; 303. Toothed plate; 304. Power component; 305. Moving wheel; 306. Groove; 307. Guide groove; 308. Through hole 309. Cylinder block; 310. Branch pipe; 311. Check valve; 312. Inflation pipe; 313. Air pump; 314. Pressure relief pipe; 315. Exhaust port; 316. Positioning block; 401. Slider; 402. Guide; 403. Connecting wire; 404. First spring; 405. Push rod; 406. Second spring; 3031. Fixing rod; 3032. Piston; 3011. Third spring; 3012. Sealing sleeve; 3013. Transmission rod; 3014. Top plate. Detailed Implementation

[0032] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0033] The terms "top surface," "bottom surface," and "full surface" refer to the normal operating state of the laser cutting machine bed and are used only for the purpose of describing the present invention and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0034] like Figure 1 and 7 As shown in Figure 10, a laser cutting machine bed includes a support platform 3 horizontally arranged on a cutting base 1. The top surface of the support platform 3 is recessed downward to form a groove 306 for storing water. Multiple horizontally distributed toothed plates 303 are arranged in the groove 306. The support platform 3 is provided with a drive mechanism, which is connected to each toothed plate 303 for driving each toothed plate 303 to rise and fall independently.

[0035] The aforementioned bed is a component of the laser cutting machine. A horizontally movable and height-adjustable laser cutter is mounted directly above the cutting base 1. The support platform 3 is used to place the sheet metal. The laser cutter moves and completes the cutting of the sheet metal. The groove 306 is filled with clean water. During the laser cutter's movement and cutting process, when the laser cutter moves directly above the corresponding toothed plate 303, the drive mechanism lowers that toothed plate 303 and immerses it in the clean water inside the groove 306, while the other toothed plates 303 remain raised to support the sheet metal. When the laser cutter moves away... The lowered toothed plates 303 rise, allowing each toothed plate 303 to follow the movement of the laser cutter. The lowering and resetting of different toothed plates 303 are controlled in real time. At this time, since the laser cutter is not supported by toothed plates 303 when it is lowered, the molten slag produced by cutting will fall directly into the clean water. Under the action of the clean water, it will be quickly cooled and solidified, and finally settle at the bottom of the groove 306. In this way, the molten slag is difficult to adhere to the toothed plates 303, thus keeping each toothed plate 303 clean. When the toothed plates 303 are supported under the plate, they keep the plate flat and stable, ultimately improving the cutting accuracy of the laser cutting machine.

[0036] In this laser cutting machine bed, the X-axis is along the length of the cutting base 1, the Y-axis is along the width of the cutting base 1, and the Z-axis is along the height of the cutting base 1. The laser cutter is mounted on the cutting base 1 via a three-axis moving table, enabling translation and lifting. Figure 1 and 7 As shown, the toothed plate 303 extends horizontally along the Y-axis, and each toothed plate 303 is arranged at equal intervals inside the groove 306 along the X-axis. In this way, when the laser cutting head moves along the X-axis, it is only necessary to switch different toothed plates 303 for lifting and lowering. When the laser cutting head moves along the Y-axis and Z-axis, it is not necessary to switch the toothed plates 303. This can also reduce the frequency of toothed plate 303 movement and improve the energy-saving performance of the equipment.

[0037] Further improvements include, for example Figure 8-10As shown, the drive mechanism includes a piston 3032 fixedly connected to a toothed plate 303 via a fixed rod 3031 and a cylinder 309 fixedly connected to a support platform 3. The piston 3032 is slidably disposed inside the cylinder 309 and is sealed to the cylinder 309. The support platform 3 has a through hole 308 that connects the groove 306 and the cylinder 309. The fixed rod 3031 is vertically disposed through the through hole 308. The cylinder 309 is connected to an inflation / deflation assembly. Specifically, the toothed plates 303 are horizontally distributed, and each toothed plate has a fixed rod 3031 fixedly connected to both ends along the vertical direction. The piston 3032 is fixedly connected to the bottom end of the fixed rod 3031. The bottom of the groove 306 has through holes 308 corresponding to the positions of each fixed rod 3031. The cylinders 309 are vertically distributed at the bottom of the support platform 3, and their number is consistent with the number of through holes 308 and they correspond one-to-one. In this way, the piston 3032 can be driven to rise and fall inside the cylinder 309 by the inflation and deflation assembly, thereby controlling the rise and fall of the toothed plates 303.

[0038] The specific structure of the inflation / deflation assembly is as follows: Figure 9 and 10 As shown, the inflation / deflation assembly includes an air pump 313 fixedly connected to the support platform 3. The air outlet of the air pump 313 is connected to an inflation pipe 312. The inflation pipe 312 is connected to the bottom end of the cylinder 309 through a branch pipe 310. A check valve 311 is provided between the inflation pipe 312 and the branch pipe 310. The bottom end of the cylinder 309 is also connected to a pressure relief pipe 314. A switch assembly 301 for controlling its on / off state is provided at the outlet end of the pressure relief pipe 314.

[0039] Specifically, the bottom ends of the two cylinders 309 connected to the toothed plate 303 are interconnected via a branch pipe 310. Each branch pipe 310 is connected to an air pump 313 via an air filling pipe 312, allowing the air pump 313 to fill the interior of each cylinder 309 with air. The air pressure pushes the piston 3032 upward, thus keeping the toothed plate 303 in an elevated state. A check valve 311 is installed at the connection between the branch pipe 310 and the air filling pipe 312 to prevent air entering the branch pipe 310 from flowing back into the air filling pipe 312, thereby maintaining stable air pressure inside the cylinders 309 and ensuring the stability of the support for the toothed plate 303. Furthermore, with the check valve 311 installed, the air pump 313 can stop operating after filling each cylinder 309 with air, thus reducing the load on the air pump 313 and improving the energy efficiency of the equipment. A pressure sensor needs to be installed to detect the air pressure inside the cylinder 309. When the air pressure is too low, the air pump 313 can be started to inflate the cylinder to maintain the stability of the air pressure inside the cylinder 309. The principle of the lifting and lowering of the toothed plate 303 is as follows: When the switch assembly 301 is closed, air is injected into the cylinder 309, which pushes the piston 3032 to rise, thereby raising the toothed plate 303. The piston stroke is limited by the cylinder 309. By aligning the height of the top and bottom of the cylinder 309, the top surface of each toothed plate 303 can be controlled to be at the same level after it is raised, so that the plate can be placed flat and stable. When the switch assembly 301 is triggered, the pressure relief pipe 314 is opened, and the air inside the cylinder 309 is quickly discharged through the pressure relief pipe 314. At this time, the toothed plate 303 loses its support and falls into the groove 306 under its own weight and is submerged in water.

[0040] In the above drive mechanism, the lifting and lowering of the toothed plate 303 is ultimately controlled by the switch assembly 301. Therefore, the toothed plate 303 can be controlled simply by turning on the corresponding switch assembly 301 according to the position of the laser cutter in the X-axis direction. This drive mechanism is equipped with only one air pump 313. After the air pump 313 has finished inflating each cylinder 309 for the first time, it only needs to inflate a few cylinders 309 at a time during subsequent inflation. Therefore, rapid inflation can be completed by a single air pump 313, and the air pump 313 does not need to be continuously turned on to maintain stable air pressure, which can greatly reduce the production cost and energy consumption of the laser cutting machine bed. The lifting and lowering of the toothed plate 303 is not controlled by inflating and deflating the cylinders 309, resulting in higher stability and faster response speed. When the plate is placed on the support platform 3, the air is compressible, and the compression of the air can also absorb the impact force generated by the plate, thereby reducing the impact force on the toothed plate 303 during loading and unloading and reducing the probability of damage to the toothed plate 303.

[0041] Further improvements include, for example Figure 1-3As shown, a third slide rail 103 for mounting a laser cutter is fixedly connected to the top of the cutting base 1. The extension direction of the third slide rail 103 is the first direction. Multiple linkage mechanisms 4 are arranged at equal intervals on the cutting base 1 along the first direction. The number of linkage mechanisms 4 is equal to the number of switch components 301 and corresponds one-to-one. The laser cutter controls the opening and closing of the switch components 301 through the linkage mechanisms 4. In the bed of the aforementioned laser cutting machine, the first direction is the X-axis direction. The laser cutter moves along the third slide rail 103, thus achieving movement along the X-axis direction. The various linkage mechanisms 4 set on the cutting seat 1 are evenly distributed along the X-axis direction, and the distribution position of the linkage mechanisms 4 along the X-axis direction corresponds to the distribution position of each toothed plate 303 along the X-axis direction. The number of linkage mechanisms 4 and toothed plates 303 is the same and they correspond one-to-one. When the laser cutter moves to the position of the corresponding linkage mechanism 4 along the X-axis direction, the laser cutter triggers the corresponding linkage mechanism 4, which in turn triggers the corresponding switch assembly 301 of the toothed plate 303. As a result, the toothed plate 303 at the position corresponding to the laser cutter along the X-axis direction descends. In this way, the pure mechanical linkage action between the toothed plate 303 and the laser cutter is realized, improving the reliability of the equipment operation.

[0042] Further improvements include, for example Figure 1 and 2 As shown, the cutting seat 1 is also connected to the feeding seat 2. The cutting seat 1 and the feeding seat 2 are fixedly connected by a first slide rail 101 and a second slide rail 102 distributed vertically. The first slide rail 101 and the second slide rail 102 both extend parallel to the first direction and are slidably provided with a support platform 3. Limit switches 104 are provided at the ends of the first slide rail 101 and the second slide rail 102. The cutting base 1 is provided with two support platforms 3. The support platforms 3 can move back and forth between the loading base 2 and the cutting base 1 along the first slide rail 101 and the second slide rail 102. After the plate on one of the support platforms 3 is cut, it can be moved to the loading base 2 for loading and unloading operations. At the same time, the other support platform 3 can be moved to the cutting base 1 to cut the plate. This can save the waiting time for loading and improve the processing efficiency of the laser cutting machine. The support platform 3 is provided with a moving wheel 305 and a motor 304 for driving the moving wheel 305 to move. The ends of the first slide rail 101 and the second slide rail 102 are also provided with limit switches 104 for detecting whether the support platform 3 has moved into place. When the support platform 3 moves to the position of the limit switch 104, the switch components 301 and the linkage mechanisms 4 are aligned with each other to facilitate the subsequent control of the toothed plate 303.

[0043] Further improvements include, for example Figure 10 and 11As shown, the outlet end of the pressure relief pipe 314 extends horizontally, and an exhaust hole 315 is provided on the side of the outlet end. The switch assembly 301 includes a sealing sleeve 3012 that is coaxially slidably disposed on the outer periphery of the pressure relief pipe 314. The length of the sealing sleeve 3012 is greater than the length of the exhaust hole 315. A third spring 3011 is provided between the sealing sleeve 3012 and the pressure relief pipe 314. A top plate 3014 is fixedly connected to the sealing sleeve 3012 through a transmission rod 3013. A positioning block 316 is also fixedly connected to the pressure relief pipe 314.

[0044] In the aforementioned laser cutting machine bed, the linkage mechanism 4 moves axially along the sealing sleeve 3012 to push the top plate 3014 to move along the Y-axis. This, in turn, via the transmission rod 3013, pushes the sealing sleeve 3012 axially along the pressure relief pipe 314, causing the sealing sleeve 3012 and the exhaust port 315 to misalign. This opens the exhaust port 315, allowing air inside the cylinder 309 to escape, thus lowering the toothed plate 303. When the laser cutter continuously moves above the toothed plate 303, the corresponding linkage mechanism 4 is continuously triggered, keeping the pressure relief pipe 314 open and maintaining the lowered state of the toothed plate 303. When the laser cutter moves away from above the toothed plate 303, the linkage mechanism 4 resets. Under the action of the third spring 3011, the sealing sleeve 3012 resets. The bottom positioning block 316 restricts the position of the sealing sleeve 3012. This prevents the sealing sleeve 3012 from detaching from the pressure relief pipe 314 and ensures that the repositioned sealing sleeve 3012 can completely cover the exhaust port 315, thereby achieving a closed state for the exhaust port 315. Since the exhaust port 315 is located on the side of the pressure relief pipe 314, the force exerted by the internal air pressure on the sealing sleeve 3012 is radial along the pressure relief pipe 314. Thus, when the sealing sleeve 3012 moves axially along the pressure relief pipe 314, the resistance experienced by the sealing sleeve 3012 can be reduced, making the sealing sleeve 3012 easier to trigger while maintaining a seal. Of course, multiple exhaust ports 315 can be arranged circumferentially around the axis of the pressure relief pipe 314, which can increase the exhaust speed and keep the forces exerted on the sealing sleeve 3012 in various radial directions mutually canceling each other, so that the sealing sleeve 3012 is in a state of force balance, thereby further reducing the smoothness of the axial movement of the sealing sleeve 3012 along the pressure relief pipe 314.

[0045] Further improvements include, for example Figure 4-6As shown, the linkage mechanism 4 includes a slider 401 that is raised and lowered, and two push rods 405 that are horizontally slidable. The sliding direction of the push rods 405 is parallel to the axis of the sealing sleeve 3012, and the horizontal height of the two push rods 405 is the same as the horizontal height of the sealing sleeve 3012 located on the two support platforms 3. The slider 401 is raised and lowered by the laser cutter, and the slider 401 pushes the two push rods 405 to move horizontally synchronously. The cutting seat 1 has a stepped hole 107, and the push rods 405 slide in the stepped hole 107. A second spring 406 is provided between the stepped holes 107; the cutting seat 1 is also provided with vertically distributed lifting grooves 105, the slider 401 slides with the lifting groove 105, a first spring 404 is provided between the slider 401 and the lifting groove 105, a limiting block 106 is provided in the lifting groove 105 to abut against the slider 401, a flexible connecting line 403 is fixedly connected between the slider 401 and the push rod 405, the top of the slider 401 extends upward to the outside of the lifting groove 105, and an arc-shaped guide 402 is fixedly connected to the top of the slider 401.

[0046] Specifically, a roller can be fixedly connected to one side of the laser cutter, aligning it with the cutting end of the laser cutter in the Y-axis direction, and moving synchronously with the cutting end. When the roller moves along the X-axis above the corresponding slider 401, it pushes the slider 401 down along the lifting groove 105. At this time, the tension transmitted to the two push rods 405 through the connecting line 403 decreases. Under the action of the second spring 406, the push rods 405 are pushed to move closer to the top plate 3014, thereby triggering the sealing sleeve 3012. When the laser cutter moves away from above the toothed plate 303, the pressure of the roller on the slider 401 disappears, and the slider 401 is reset by the first spring 404, which in turn pulls the two push rods 405 back into the stepped hole 107. The force of the push rods 405 on the sealing sleeve 3012 disappears, and the sealing sleeve 3012 is also reset accordingly. In the above structure, the first spring 404... The elastic force of the first spring is greater than that of the second spring 406, and the elastic force of the second spring 406 is greater than that of the third spring 3011, thus enabling each mechanism to operate normally. Vertically distributed insertion slots 108 are provided on both sides of the lifting groove 105, allowing the slider 401 to slide into the insertion slots 108. This prevents the slider 401 from falling out of the lifting groove 105, improving the stability of the slider 401's sliding motion, and consequently enhancing the stability and reliability of the laser cutter machine's operation. When the push rod 405 is in the reset state, it is separated from the top plate 3014. At this time, the support platform 3 and the cutting seat 1 are also separated, facilitating the switching between the two support platforms 3. The arc-shaped guide 402 converts the movement of the roller along the X-axis into the vertical movement of the slider 401, acting as a guide between the roller and the slider 401 to reduce resistance during connection.

[0047] Further improvements include, for example Figure 9 As shown, the through hole 308 is sealed to the fixing rod 3031 via a sealing ring, and a pressure stabilizing hole is provided at the top of the cylinder body 309. The sealing ring reduces the loss of clean water from the through hole 308 to maintain a stable water level inside the groove 306. The pressure stabilizing hole maintains stable air pressure on both sides of the piston 3032, reduces the pressure difference, and thus improves the response speed of the piston 3032, thereby improving the response speed of the toothed plate 303 when it rises and falls.

[0048] Further improvements include, for example Figure 5 and 6 As shown, multiple absorbent blocks 302 are fixedly connected inside the groove 306. The absorbent blocks 302 are staggered with the toothed plate 303, and the height of the absorbent blocks 302 is greater than or equal to the height of the toothed plate 303. The liquid level inside the groove 306 is greater than the height of the absorbent blocks 302. The absorbent blocks 302 are sponges with a dense porous structure, which has a strong water absorption capacity. They can lock clean water inside the absorbent blocks 302. When switching between the two support platforms 3, they can reduce the shaking of clean water, thereby reducing water splashing. Furthermore, after the clean water is locked inside the absorbent blocks 302, it can reduce water splashing during laser cutting and slag falling, thereby reducing the impact of water on the equipment and the sheet metal. Moreover, after the fallen slag cools, it adheres to the absorbent blocks 302, which facilitates subsequent cleaning of the inside of the groove 306 and improves the convenience of equipment maintenance.

[0049] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A laser cutting machine bed, characterized in that... : The device includes a support platform horizontally mounted on a cutting seat. The top surface of the support platform is recessed downwards to form a groove for water storage. Multiple horizontally distributed toothed plates are arranged in the groove. The support platform is equipped with a drive mechanism, which is kinetically connected to each of the toothed plates to drive each toothed plate to rise and fall independently. The drive mechanism includes a piston fixedly connected to the toothed plates via a fixed rod and a cylinder fixedly connected to the support platform. The piston is slidably disposed inside the cylinder and is sealed to the cylinder. The support platform has a through hole connecting the groove and the cylinder. The fixed rod is vertically disposed through the through hole. The cylinder is connected to an inflation / deflation assembly. The inflation / deflation assembly includes an air pump fixedly connected to the support platform. The air pump's outlet is connected to an inflation pipe, which is connected to the bottom of the cylinder via a branch pipe. A check valve is installed between the inflation pipe and the branch pipe. A pressure relief pipe is also connected to the bottom of the cylinder, and a switch assembly for controlling its on / off state is installed at the outlet of the pressure relief pipe. A third slide rail for mounting a laser cutter is fixedly connected to the top of the cutting base. The extension direction of the third slide rail is a first direction. Multiple linkage mechanisms are evenly spaced along the first direction on the cutting base. The number of linkage mechanisms is equal to and corresponds one-to-one with the number of the switch assembly. The laser cutter is controlled by these linkage mechanisms. The mechanism controls the opening and closing of the switch assembly; the outlet end of the pressure relief pipe extends horizontally, and an exhaust hole is provided on the side of the outlet end; the switch assembly includes a sealing sleeve coaxially slidably disposed on the outer periphery of the pressure relief pipe, the length of the sealing sleeve being greater than the length of the exhaust hole; a third spring is disposed between the sealing sleeve and the pressure relief pipe; a top plate is fixedly connected to the sealing sleeve via a transmission rod; a positioning block is also fixedly connected to the pressure relief pipe; the linkage mechanism includes a slider that is raised and lowered and two push rods that are horizontally slidable, the sliding direction of the push rods being parallel to the axis of the sealing sleeve, and the horizontal height of the two push rods being respectively related to the sealing sleeves located on the two support platforms. The horizontal height is consistent; the slider is pushed up and down by the laser cutter, and the slider pushes the two push rods to move horizontally synchronously; the cutting seat has a stepped hole, the push rod slides in the stepped hole, and a second spring is provided between the push rod and the stepped hole; the cutting seat also has vertically distributed lifting grooves, the slider slides in the lifting grooves, a first spring is provided between the slider and the lifting grooves, a limiting block is provided in the lifting groove to abut against the slider, a flexible connecting line is fixedly connected between the slider and the push rod, the top of the slider extends upward to the outside of the lifting groove, and an arc-shaped guide is fixedly connected to the top of the slider.

2. The laser cutting machine bed according to claim 1, characterized in that, The cutting seat is also connected to a feeding seat. A first slide rail and a second slide rail are fixedly connected between the cutting seat and the feeding seat. The first slide rail and the second slide rail extend parallel to the first direction and are both slidably provided with a support platform. Limit switches are provided at the ends of the first slide rail and the second slide rail.

3. The laser cutting machine bed according to claim 1, characterized in that, The through hole is sealed to the fixing rod by a sealing ring, and a pressure stabilizing hole is provided at the top of the cylinder.

4. The laser cutting machine bed according to claim 1, characterized in that, Multiple water-absorbing blocks are fixedly connected inside the groove. The water-absorbing blocks are staggered with the toothed plate. The height of the water-absorbing blocks is greater than or equal to the height of the toothed plate. The liquid level inside the groove is greater than the height of the water-absorbing blocks.

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