Laser cutting machine feeding device

Abstract

The present invention belongs to the technical field of laser cutting machines, and specifically is a feeding device for a laser cutting machine, comprising a base, a workbench is arranged at the top of the base, and a plurality of top teeth are evenly arranged at the top of the workbench; a cutting assembly is arranged above the base; the cutting assembly is used to cut the plate placed on the workbench; a pair of support frames are symmetrically arranged on both sides of the workbench, a clamping plate is arranged at the top of the support frame, and the bottom end of the clamping plate is at the same height as the top of the top teeth on the workbench; the feeding device for a laser cutting machine described in the present invention adjusts the position of the plate when it is lifted by setting the clamping plate and cooperating with the hanging plate, and the hoist places the plate on the top of the top teeth on the workbench when reaching the specified position; during the entire process of adjusting the position of the plate, the surface of the plate will not slide with the top teeth, thereby avoiding the situation where the surface of the plate is scratched and scratched, effectively protecting the plate and ensuring the quality of the plate.

Description

Technical Field

[0001] The invention belongs to the technical field of laser cutting machines, in particular to a feeding device for a laser cutting machine. Background Art

[0002] Laser cutting uses a focused high-power density laser beam to irradiate the workpiece, causing the irradiated material to quickly melt, vaporize or reach the ignition point, and at the same time uses a high-speed airflow coaxial with the beam to blow away the molten material, thereby achieving the cutting of the workpiece. It is one of the thermal cutting methods for cutting workpieces. Currently, when laser cutting is performed on plates, the plate needs to be loaded into the area to be cut first, supported by the top teeth, and then cut by a moving laser beam.

[0003] The existing Chinese patent with publication number CN117359128A discloses a plate feeding device for a laser cutting machine, including a material taking mechanism, a positioning mechanism and a gripping mechanism. The positioning mechanism includes a placement component, a first pillar, a second pillar and a third pillar. A plurality of first positioning blocks and a plurality of second positioning blocks are installed on the placement component. The axis of the first positioning block intersects with the axis of the second positioning block. A cylinder is arranged next to the second pillar. The material taking mechanism places the plate on the placement component. The placement component is tilted toward the intersection of the axis of the first positioning block and the axis of the second positioning block under the action of the cylinder's top push. The plate slides toward the intersection of the axis of the first positioning block and the axis of the second positioning block under the action of gravity. When the plate slides to the point where its edge abuts against the first positioning block and the second positioning block, the positioning of the plate is completed, which facilitates the directional gripping of the gripping mechanism, thereby reducing manual intervention and improving production efficiency.

[0004] The above patent sets up a material picking mechanism, a positioning mechanism and a grasping mechanism to complete the positioning of the plate, which facilitates the grasping mechanism to perform directional grasping, thereby reducing manual intervention and improving production efficiency; however, in the process of adjusting the position of the plate, scratches may be generated when the plate slides relative to the placement component, resulting in a decrease in the quality of the plate, so the plate loading device needs to be further optimized.

[0005] To this end, the present invention provides a feeding device for a laser cutting machine. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a feeding device for a laser cutting machine described in the present invention comprises a base, a workbench is arranged at the top of the base, and a plurality of top teeth are evenly arranged at the top of the workbench; a cutting assembly is arranged above the base; the cutting assembly is used to cut the plate placed on the workbench;

[0008] A pair of support frames are symmetrically arranged on both sides of the workbench, a clamping plate is arranged on the top of the support frame, and the bottom end of the clamping plate is at the same height as the top end of the top tooth on the workbench; a first hydraulic cylinder is arranged on the top of the support frame, and the output end of the first hydraulic cylinder is connected to the clamping plate; a hanging plate is arranged above the workbench, a plurality of mounting plates are arranged on the bottom end of the hanging plate, a pair of adsorption components are symmetrically arranged at both ends of the mounting plate, and the adsorption components are used for adsorbing the surface of the plate to be cut; a fixed frame is arranged on the top of the mounting plate; a hook is arranged in the fixed frame, and a hanging rope is arranged on the top of the hook.

[0009] Preferably, a magnetic plate is provided at the end of the hanging plate, a receiving tube is provided at the end of the base, a positioning rod is inserted at the top of the receiving tube, a supporting spring is provided at one end of the positioning rod located at the receiving tube, and an electromagnet is provided at the top of the positioning rod.

[0010] Preferably, a pair of linkage plates are provided on the side of the electromagnet, a buffer spring is provided at the top end of the linkage plate, and the top end of the buffer spring is higher than the top end of the electromagnet.

[0011] Preferably, a plurality of sliding notches are provided on the surface of the clamping plate, and an annular belt is sleeved inside the sliding notches.

[0012] Preferably, a plurality of first grooves are provided on one side of the splint facing the middle position of the workbench, a drag plate is inserted into the inside of the first groove, and a connecting frame is provided at the top of the drag plate; the connecting frame includes a vertical part and a horizontal part, a second hydraulic cylinder is provided below the horizontal part of the connecting frame, the housing of the second hydraulic cylinder is installed on the side of the splint, and the top end of the output end of the second hydraulic cylinder is connected to the bottom end of the horizontal part of the connecting frame.

[0013] Preferably, the thickness of the drag plate is smaller than the length of the top teeth.

[0014] Preferably, a plurality of second grooves are provided on the side of the clamping plate facing the center of the workbench, a pressing block is provided inside the second groove, a plurality of air cylinders are provided on the side of the clamping plate facing away from the center of the workbench, and an air rod is inserted inside the air cylinder;

[0015] One end of the gas rod located outside the gas cylinder passes through the inside of the second groove and is connected to the pressure block; a hose is provided at the end of the gas cylinder, and an air pump is externally connected to the end of the hose away from the gas cylinder.

[0016] Preferably, a pressure relief valve is provided on the surface of the gas cylinder.

[0017] Preferably, the pressing block is made of stainless steel.

[0018] Preferably, the sizes of the hanging plate and the mounting plate are adjustable.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The laser cutting machine feeding device described in the present invention adjusts the position of the plate when it is lifted by setting a clamping plate and cooperating with the hanging plate. When the designated position is reached, the hoist places the plate on the top of the top tooth on the workbench. During the entire process of adjusting the position of the plate, the surface of the plate will not slide with the top tooth, thereby avoiding scratches on the surface of the plate, effectively protecting the plate and ensuring the quality of the plate.

[0021] 2. The present invention describes a feeding device for a laser cutting machine, which, by setting an electromagnet, causes the plate to shake due to inertia when the plate is lifted to a position above the workbench by a crane; when the electromagnet is energized, the electromagnet adsorbs the magnetic plate at the end of the hanging plate, and then limits the position of the magnetic plate by magnetic force, so that the shaking hanging plate quickly stabilizes, making it easier to adjust the position of the plate later; and when the plate continues to move downward, the electromagnet drives the bottom positioning rod to move toward the inside of the receiving tube, compressing the supporting spring without causing any jamming interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 is a stereogram of the present invention;

[0024] Figure 2 is a schematic diagram of the support frame connection structure of the present invention;

[0025] Figure 3 It is a schematic diagram of an electromagnet of the present invention;

[0026] Figure 4 It is a schematic diagram of the electromagnet connection structure of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the splint of the present invention;

[0028] Figure 6 is a schematic diagram of a splint of the present invention;

[0029] Figure 7 is a schematic diagram of an annular belt of the present invention;

[0030] Figure 8 is a schematic diagram of the position of the first groove on the splint of the present invention;

[0031] Fig. 9 It is a schematic diagram of the connection structure of the carriage of the present invention;

[0032] Fig.10 It is a schematic diagram of the pressing block of the present invention.

[0033] In the figure: 1. base; 11. workbench; 12. cutting assembly; 2. support frame; 21. first hydraulic cylinder; 22. clamp; 3. hanging plate; 31. hook; 32. hanging rope; 33. mounting plate; 34. adsorption assembly; 4. magnetic plate; 41. receiving tube; 42. positioning rod; 43. electromagnet; 44. supporting spring; 45. linkage plate; 46. buffer spring; 5. sliding notch; 51. annular belt; 6. first groove; 61. drag plate; 62. connecting frame; 63. second hydraulic cylinder; 7. second groove; 71. pressure block; 72. gas rod; 73. gas cylinder; 74. hose; 75. pressure relief valve. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] like Figure 1 to Figure 2 As shown, a feeding device for a laser cutting machine according to an embodiment of the present invention comprises a base 1, a workbench 11 is arranged at the top of the base 1, and a plurality of top teeth are evenly arranged at the top of the workbench 11; a cutting assembly 12 is arranged above the base 1; the cutting assembly 12 is used to cut a plate placed on the workbench 11;

[0036] A pair of support frames 2 are symmetrically arranged on both sides of the workbench 11, and a clamping plate 22 is arranged at the top of the support frame 2, and the bottom end of the clamping plate 22 is at the same height as the top end of the top tooth on the workbench 11; a first hydraulic cylinder 21 is arranged at the top of the support frame 2, and the output end of the first hydraulic cylinder 21 is connected to the clamping plate 22; a hanging plate 3 is arranged above the workbench 11, and a plurality of mounting plates 33 are arranged at the bottom end of the hanging plate 3, and a pair of adsorption components 34 are symmetrically arranged at both ends of the mounting plate 33, and the adsorption components 34 are used for adsorbing the surface of the plate to be cut; a fixed frame is arranged at the top of the mounting plate 33; a hook 31 is arranged in the fixed frame, and a hanging rope 32 is arranged at the top of the hook 31;

[0037] In the process of adjusting the position of the plate, scratches may be generated when the plate slides relative to the placement component, resulting in a decrease in the quality of the plate. Therefore, the loading device of the plate needs to be further optimized. To solve the above problems, the embodiment of the present invention provides a clamping plate 22. When loading, the crane lifts the hanging plate 3 upwards through the hanging rope 32, the hook 31 and the fixing frame. The hanging plate 3 drives the adsorption component 34 to the position of the plate to be cut through the mounting plate 33, and the plate is adsorbed and fixed by the adsorption component 34. Then, the plate is lifted to the top of the workbench 11 by the crane, and gradually moved downward. When it moves to between the clamps 22, it stops. At this time, the plate is not placed on the top teeth on the workbench 11. Then, the first hydraulic cylinder 21 is started, and the first hydraulic cylinder 21 drives the clamps 22 to move. When the clamps 22 press against the end of the plate, it stops. At this time, the clamps 22 cooperate with the crane to adjust the position of the plate. When the specified position is reached, the crane places the plate on the top of the top teeth on the workbench 11. During the entire process of adjusting the position of the plate, the surface of the plate will not slide against the top teeth, thereby avoiding scratches on the surface of the plate, effectively protecting the plate and ensuring the quality of the plate.

[0038] like Figures 1 to 4 As shown, a magnetic plate 4 is provided at the end of the hanging plate 3, a receiving tube 41 is provided at the end of the base 1, a positioning rod 42 is inserted at the top of the receiving tube 41, and a supporting spring 44 is provided at one end of the positioning rod 42 located at the receiving tube 41, and an electromagnet 43 is provided at the top of the positioning rod 42; when the plate is lifted to the upper position of the workbench 11 by the crane, the plate shakes due to inertia; the electromagnet 43 is energized, and the electromagnet 43 adsorbs the magnetic plate 4 at the end of the hanging plate 3, and then limits the position of the magnetic plate 4 by magnetic force, so that the shaking hanging plate 3 quickly stabilizes, which is convenient for the subsequent position adjustment of the plate; and when the plate continues to move downward, the electromagnet 43 drives the bottom positioning rod 42 to move toward the inside of the receiving tube 41, compresses the supporting spring 44, and does not cause clamping interference; it should be pointed out that when adjusting the position of the plate, it is necessary to release the power of the electromagnet 43, thereby releasing the restriction on the hanging plate 3, and the restriction on the plate is also released.

[0039] A pair of linkage plates 45 are provided on the side of the electromagnet 43, and a buffer spring 46 is provided at the top of the linkage plate 45, and the top of the buffer spring 46 is higher than the top of the electromagnet 43; when the electromagnet 43 and the magnetic plate 4 are adsorbed, the buffer spring 46 on the linkage plate 45 will first contact the magnetic plate 4, and then the buffer spring 46 will be compressed, and the contact process of the electromagnet 43 and the magnetic plate 4 will be buffered, thereby avoiding the collision between the electromagnet 43 and the magnetic plate 4 and improving safety.

[0040] like Figures 5 to 10As shown, a plurality of sliding notches 5 are provided on the surface of the clamping plate 22, and an annular belt 51 is sleeved inside the sliding notch 5; when the position adjustment of the plate is completed, it needs to move downward and fall onto the top teeth on the workbench 11, and as the plate is driven to move downward, the end of the plate is slidably connected to the side of the clamping plate 22, so an annular belt 51 is provided, and the annular belt 51 will contact the end of the plate instead of the clamping plate 22, so that when the plate moves downward, the annular belt 51 is driven to rotate in the sliding notch 5, thereby improving the smoothness of the movement of the plate and reducing the friction force on the end of the plate.

[0041] A plurality of first grooves 6 are provided on one side of the clamping plate 22 facing the middle position of the workbench 11, and a drag plate 61 is inserted into the inside of the first groove 6, and a connecting frame 62 is arranged at the top end of the drag plate 61; the connecting frame 62 includes a vertical part and a horizontal part, and a second hydraulic cylinder 63 is arranged below the horizontal part of the connecting frame 62, and the housing of the second hydraulic cylinder 63 is installed on the side of the clamping plate 22, and the top end of the output end of the second hydraulic cylinder 63 is connected to the bottom end of the horizontal part of the connecting frame 62; when the end of the plate contacts the clamping plate 22, the output of the second hydraulic cylinder 63 is controlled to cooperate with the connecting frame 62 to control the top surface of the drag plate 61 to contact the bottom surface of the plate, and when the end of the plate is deformed downward due to its soft texture, the plate is supported so that the plate remains horizontal, thereby ensuring the adjustment effect of the clamping plate 22 on the position of the plate; when the plate moves downward, the drag plate 61 can be controlled to move downward without causing any obstruction; it should be pointed out that when the vertical part of the connecting frame 62 moves, it passes through the first groove 6 without interfering with the end of the plate.

[0042] The thickness of the drag plate 61 is smaller than the length of the top teeth; after the plate is placed on the top teeth, the first hydraulic cylinder 21 drives the clamping plate 22 to move downward away from the plate, thereby driving the drag plate 61 to move synchronously. At this time, the drag plate 61 is controlled to move further downward so that the drag plate 61 is separated from the plate and no friction is generated between the plate and the bottom surface of the placed plate. Scratches appear.

[0043] A plurality of second grooves 7 are provided on one side of the clamping plate 22 facing the center of the workbench 11, and a pressing block 71 is provided inside the second groove 7. A plurality of gas cylinders 73 are provided on one side of the clamping plate 22 facing away from the center of the workbench 11, and a gas rod 72 is inserted inside the gas cylinder 73.

[0044] One end of the gas rod 72 located outside the gas cylinder 73 passes through the interior of the second groove 7 and is connected to the pressing block 71; the end of the gas cylinder 73 is connected to a hose 74, and the end of the hose 74 away from the gas cylinder 73 is connected to an air pump; for a plate with a non-linear end, when the position of the end of the pressing plate is adjusted, the air pump connected to the end of the hose 74 is started, and the air pump inflates the gas cylinder 73 through the hose 74, and the gas rod 72 is pushed out by the air pressure in the gas cylinder 73, so that the gas rod 72 drives the pressing block 71 to disengage from the second groove 7, and stops when the pressing block 71 presses to the end position of the plate, and then the first hydraulic cylinder 21 controls the movement of the clamping plate 22 to adjust the position of the plate; the plate with a non-linear end is pressed by multiple pressing blocks 71, which ensures that the end is subjected to stable force during adjustment, thereby facilitating the adjustment process.

[0045] The surface of the gas cylinder 73 is connected to a pressure relief valve 75; when the pressing block 71 presses against the end of the plate, the pressing force of the pressing block 71 on the end of the plate is the same as the gas pressure in the gas cylinder 73, so the pressure relief valve 75 is provided. When the gas pressure in the gas cylinder 73 is too high, the pressure relief valve 75 automatically relieves the pressure of the gas cylinder 73 to stabilize the gas pressure in the gas cylinder 73, and then stabilizes the squeezing force of the pressing block 71 on the end of the plate, thereby avoiding deformation and damage of the end of the plate due to excessive pressing force of the pressing block 71 on the end of the plate.

[0046] The pressing block 71 is made of stainless steel to avoid deformation and damage of the pressing block 71 when pressing the end of the plate, thereby ensuring the use effect of the pressing block 71.

[0047] The sizes of the hanging plate 3 and the mounting plate 33 are adjustable, so that the adsorption assembly 34 can adsorb plates of different sizes, thereby increasing the size range of the loaded plates.

[0048] During operation, when loading, the crane lifts the hanging plate 3 upwards through the hanging rope 32, the hanging hook 31 and the fixing frame, and the hanging plate 3 drives the adsorption component 34 to the position of the plate to be cut through the mounting plate 33, and the plate is adsorbed and fixed by the adsorption component 34; then the plate is lifted to the top of the workbench 11 by the crane, and gradually moves downward, and stops when the plate moves between the clamping plates 22, at which time the plate is not placed on the top teeth on the workbench 11; then the first hydraulic cylinder 21 is started, and the first hydraulic cylinder 21 drives the clamping plate 22 to move, and stops when the clamping plate 22 presses against the end of the plate At this time, the clamping plate 22 cooperates with the crane to adjust the position of the plate. When the designated position is reached, the crane places the plate on the top of the top teeth on the workbench 11. During the entire process of adjusting the position of the plate, the surface of the plate will not slide with the top teeth, thereby avoiding scratches on the surface of the plate, effectively protecting the plate and ensuring the quality of the plate. When the plate is lifted to the upper position of the workbench 11 by the crane, the plate shakes due to inertia. The electromagnet 43 is energized, and the electromagnet 43 adsorbs the magnetic plate 4 at the end of the hanging plate 3, and then the magnetic plate is pulled by the magnetic force. 4, so that the shaking hanging plate 3 is quickly stabilized, which is convenient for the subsequent adjustment of the position of the plate; and when the plate continues to move downward, the electromagnet 43 drives the bottom positioning rod 42 to move inside the receiving tube 41, compressing the supporting spring 44, and no card connection interference occurs; it should be pointed out that when adjusting the position of the plate, it is necessary to release the power of the electromagnet 43, thereby releasing the restriction on the hanging plate 3, and the restriction on the plate is also released; when the electromagnet 43 is adsorbed with the magnetic plate 4, the buffer spring 46 on the linkage plate 45 will first contact with the magnetic plate 4, and then the buffer spring 46 will be compressed The contact process between the electromagnet 43 and the magnetic plate 4 is buffered, thereby avoiding the collision between the electromagnet 43 and the magnetic plate 4 and improving safety; when the position adjustment of the plate is completed, it is necessary to move downward and fall onto the top teeth on the workbench 11. As the plate is driven to move downward, the end of the plate is slidably connected to the side of the clamping plate 22, so an annular belt 51 is provided. The annular belt 51 will contact the end of the plate instead of the clamping plate 22, so that when the plate moves downward, the annular belt 51 is driven to rotate in the sliding notch 5, thereby improving the smoothness of the movement of the plate and reducing the friction force on the end of the plate.

[0049] When the end of the plate contacts the clamping plate 22, the output of the second hydraulic cylinder 63 is controlled to cooperate with the connecting frame 62 to control the top surface of the drag plate 61 to contact the bottom surface of the plate, and the plate is supported when the end of the plate is deformed downward due to its soft texture, so that the plate remains horizontal, ensuring the adjustment effect of the clamping plate 22 on the position of the plate; when the plate moves downward, the drag plate 61 can be controlled to move downward without any obstruction; after the plate is placed on the top tooth, the clamping plate 22 is driven by the first hydraulic cylinder 21 to move downward away from the position of the plate, and then the drag plate 61 is driven to move synchronously, and at this time, the drag plate 61 is controlled to move further downward, so that the drag plate 61 will not generate friction with the plate when it is separated from the plate; scratches appear on the bottom surface of the placed plate; for the plate with a non-linear end, when the end of the plate is pressed to adjust the position, the air pump connected to the end of the hose 74 is started, and the air pump inflates the air cylinder 73 through the hose 74, and the air pressure in the air cylinder 73 pushes the gas rod 72 out, so that the gas rod 72 drives the pressing block 71 to separate from the second groove 7 When the pressing block 71 presses to the end of the plate, it stops, and then the clamping plate 22 is controlled to move by the first hydraulic cylinder 21 to adjust the position of the plate; the plate with a non-linear end is pressed by multiple pressing blocks 71 to ensure that the end is stable during adjustment, which facilitates the adjustment process; when the pressing block 71 presses to the end of the plate, the pressing force of the pressing block 71 on the end of the plate is the same as the gas pressure in the cylinder 73, so a pressure relief valve 75 is provided, and when the gas pressure in the cylinder 73 is too high, the pressure relief valve 75 automatically The air cylinder 73 releases pressure to stabilize the gas pressure in the air cylinder 73, thereby stabilizing the squeezing force of the pressing block 71 on the end of the plate, avoiding excessive pressing force of the pressing block 71 on the end of the plate, causing deformation and damage to the end of the plate; the pressing block 71 is made of stainless steel metal; avoiding deformation and damage of the pressing block 71 itself when pressing the end of the plate; ensuring the use effect of the pressing block 71; the sizes of the hanging plate 3 and the mounting plate 33 are adjustable; so that the adsorption component 34 can adsorb plates of different sizes, thereby increasing the size range of the loaded plates.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A feeding device for a laser cutting machine, characterized in that: It comprises a base (1), a workbench (11) is arranged at the top of the base (1), and a plurality of top teeth are evenly arranged at the top of the workbench (11); a cutting assembly (12) is arranged above the base (1); the cutting assembly (12) is used to cut a plate placed on the workbench (11); A pair of support frames (2) are symmetrically arranged on both sides of the workbench (11), a clamping plate (22) is arranged at the top of the support frame (2), and the bottom end of the clamping plate (22) is at the same height as the top end of the top tooth on the workbench (11); a first hydraulic cylinder (21) is arranged at the top of the support frame (2), and the output end of the first hydraulic cylinder (21) is connected to the clamping plate (22); a hanging plate (3) is arranged above the workbench (11), a plurality of mounting plates (33) are arranged at the bottom end of the hanging plate (3), and a pair of adsorption components (34) are symmetrically arranged at both ends of the mounting plate (33), and the adsorption components (34) are used for adsorbing the surface of the plate to be cut; a fixing frame is arranged at the top of the mounting plate (33); a hook (31) is arranged in the fixing frame, and a hanging rope (32) is arranged at the top of the hook (31); A plurality of first grooves (6) are provided on one side of the clamping plate (22) facing the middle of the workbench (11); a carriage (61) is inserted into the interior of the first groove (6); a connecting frame (62) is provided at the top of the carriage (61); the connecting frame (62) comprises a vertical portion and a horizontal portion; a second hydraulic cylinder (63) is provided below the horizontal portion of the connecting frame (62); a housing of the second hydraulic cylinder (63) is mounted on a side of the clamping plate (22); a top end of an output end of the second hydraulic cylinder (63) is connected to a bottom end of the horizontal portion of the connecting frame (62); a thickness of the carriage (61) is less than a length of a top tooth; A magnetic plate (4) is provided at the end of the hanging plate (3), a receiving tube (41) is provided at the end of the base (1), a positioning rod (42) is inserted at the top end of the receiving tube (41), a supporting spring (44) is provided at one end of the positioning rod (42) located at the receiving tube (41), and an electromagnet (43) is provided at the top end of the positioning rod (42); A pair of linkage plates (45) are provided on the side of the electromagnet (43), a buffer spring (46) is provided at the top end of the linkage plate (45), and the top end of the buffer spring (46) is higher than the top end of the electromagnet (43); A plurality of sliding notches (5) are formed on the surface of the clamping plate (22), and an annular belt (51) is sleeved inside the sliding notches (5); A plurality of second grooves (7) are provided on a side of the clamping plate (22) facing the center of the workbench (11), a pressing block (71) is provided inside the second groove (7), and a plurality of gas cylinders (73) are provided on a side of the clamping plate (22) facing away from the center of the workbench (11), a gas rod (72) is inserted inside the gas cylinder (73); One end of the gas rod (72) located outside the gas cylinder (73) passes through the interior of the second groove (7) and is connected to the pressure block (71); a hose (74) is provided at the end of the gas cylinder (73), and an air pump is externally connected to the end of the hose (74) away from the gas cylinder (73); and a pressure relief valve (75) is provided on the surface of the gas cylinder (73).

2. A feeding device for a laser cutting machine according to claim 1, characterized in that: The pressing block (71) is made of stainless steel.

3. The laser cutting machine feeding device according to claim 1, characterized in that: The sizes of the hanging plate (3) and the mounting plate (33) are adjustable.

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