A laser cutting machine

Abstract

This invention belongs to the field of metal sheet laser cutting technology, and particularly relates to a laser cutting machine, including a bed, a longitudinal moving component, a transverse moving component, a first cylinder, a laser welding head, and a grating. The longitudinal moving component is disposed on both sides of the bed, and the transverse moving component is disposed on the top of the moving seat of the longitudinal moving component on both sides. The first cylinder is fixedly installed on the bottom of the moving seat of the transverse moving component, and the laser welding head is fixedly installed on the moving end of the first cylinder. The grating is disposed on the top of the bed. The machine also includes a positioning and guiding mechanism disposed on both sides of the upper surface of the grating. The two positioning and guiding mechanisms precisely guide the sheet metal suspended by the vacuum suction cup and place it onto the surface of the grating. This invention achieves precise placement of the aluminum sheet through the positioning and guiding mechanism, and the shock absorption mechanism avoids impact damage between the sheet metal surface and the grating. Simultaneously, the dust blowing mechanism automatically cleans dust and impurities, effectively solving the problems of skewed installation, scratches, and poor cutting accuracy of exterior wall aluminum sheets.

Description

Technical Field

[0001] This invention belongs to the field of laser cutting technology for metal sheets, and in particular relates to a laser cutting machine. Background Technology

[0002] Before laser cutting, aluminum alloy exterior wall decorative panels and aluminum exterior wall panels need to be suspended and placed on the surface of the laser cutting machine's scimitar using a vacuum suction cup. As a dedicated load-bearing structure for the laser cutting machine, the scimitar has significant advantages: the spiked structure can stably suspend the aluminum plate, reducing the contact area between the plate and the table surface, avoiding scratches and deformation caused by large-area contact; the hollowed-out gaps can promptly dissipate the high-temperature molten slag and heat generated during cutting, preventing molten slag from sticking to the plate and burning the plate surface, thus ensuring cutting quality; at the same time, it can reduce laser reflection and reduce damage to the equipment from highly reflective materials.

[0003] In actual processing, during vacuum suction cup hoisting, it is difficult to ensure that the aluminum plate lands precisely on the surface of the grating, and the plate is prone to skewing. During subsequent laser cutting, it is very easy to cut diagonal lines on the surface of the aluminum plate, affecting the appearance quality of the plate and the accuracy of subsequent exterior wall assembly. When the aluminum plate is misplaced, when adjusting the position of the aluminum plate on the grating surface, the grating spikes directly contact the lower surface of the aluminum plate, which can easily scratch the surface of the aluminum plate and damage its integrity during the adjustment process.

[0004] Therefore, a laser cutting machine is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a laser cutting machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a laser cutting machine, comprising a bed, a longitudinal moving assembly, a transverse moving assembly, a first cylinder, a laser welding head, and a laser grating. The longitudinal moving assembly is disposed on both sides of the bed, the transverse moving assembly is disposed on the top of the moving seats of the two longitudinal moving assemblies, the first cylinder is fixedly installed on the bottom of the moving seat of the transverse moving assembly, the laser welding head is fixedly installed on the moving end of the first cylinder, and the laser grating is disposed on the top of the bed. The machine further comprises:

[0007] The positioning and guiding mechanism is set on both sides of the upper surface of the sword grid. The two positioning and guiding mechanisms accurately guide the plate suspended by the vacuum suction cup and place it on the surface of the sword grid, avoiding the phenomenon of tilted cutting in the future.

[0008] The shock absorption mechanism is located between the lower surface of the blade guard on both sides and the top surface of the bed. When the board falls onto the surface of the blade guard, the shock absorption mechanism provides a buffering effect to the blade guard, reducing the impact damage between the board and the blade guard.

[0009] A dust blowing mechanism is installed on the side wall of the bed. The pressing end of the dust blowing mechanism is connected to the side wall of the sword grid, and the air outlet end of the dust blowing mechanism is connected to the positioning guide mechanism. The surface dropping action of the sword grid will press out the gas inside the dust blowing mechanism through the positioning guide mechanism and blow dust onto the surface of the board.

[0010] Preferably, the positioning and guiding mechanism includes a fixed seat fixedly disposed on one side of the upper surface of the sword grid, a second cylinder fixedly disposed on the side wall of the fixed seat, and a positioning guide plate fixedly disposed on the moving end of the second cylinder.

[0011] Preferably, the positioning guide plate is a wear-resistant bent plate, and the curved part of the positioning guide plate extends away from the center of the sword grid.

[0012] Preferably, the shock absorption mechanism includes a plurality of telescopic rods symmetrically arranged on one side of the lower surface of the sword grid, the lower ends of the plurality of telescopic rods being fixedly connected to the top side of the bed, and the rod walls of the plurality of telescopic rods being fitted with springs.

[0013] Preferably, the dust blowing mechanism includes a support plate fixedly mounted on the side wall of the bed, an airbag fixedly mounted on the surface of the support plate, a lower pressure plate fixedly mounted on the bottom inner wall of the airbag and fixedly connected to the upper surface of the support plate, an upper pressure plate fixedly mounted on the top inner wall of the airbag, a connecting rod fixedly mounted on the upper surface of the upper pressure plate and fixedly connected to one side of the sword grid, a downwardly extending air inlet pipe fixedly mounted on one side of the lower pressure plate, and an air outlet pipe fixedly mounted on one side of the upper pressure plate. One of the positioning guide plates is a hollow structure, and multiple evenly distributed air blowing holes are opened on the side of the positioning guide plate. The end of the air outlet pipe away from the airbag is fixedly connected to the side wall of the positioning guide plate.

[0014] Preferably, the wall of the air inlet pipe is fixedly provided with an air inlet one-way valve, the wall of the air outlet pipe is fixedly provided with an air outlet one-way valve, and the air outlet pipe is a rubber hose.

[0015] Preferably, a filter is fixedly installed at the lower end of the air intake pipe, and the filter is a detachable structure.

[0016] Preferably, a controller is fixedly provided on the side wall of the lateral moving component, and the longitudinal moving component, the lateral moving component, the first cylinder, the laser welding head and the positioning guide mechanism are all electrically connected to the controller.

[0017] Compared with existing technologies, the advantages of this invention are as follows:

[0018] 1. Through the positioning and guiding mechanism, the second cylinders on both sides drive the positioning guide plate, which can flexibly adjust the spacing according to the width of the plate to form a precise limit reference. When the vacuum suction cup lowers the plate, the positioning guide plate fits the side to correct the posture and guides the plate to fall smoothly and vertically onto the surface of the sword grid, effectively avoiding deviation and tilting, eliminating the problem of cutting oblique lines from the source, and ensuring processing accuracy.

[0019] 2. Through the shock absorption mechanism, when the plate falls onto the sword grid, the buffer structure composed of the telescopic rod and spring absorbs the impact force of the fall, allowing the sword grid to generate flexible buffer, avoiding rigid hard contact between the plate and the sword grid spikes. This not only protects the bottom surface of the aluminum plate from being bumped and scratched, but also prevents the sword grid spikes from being deformed and worn by impact, thus extending the service life of the sword grid.

[0020] 3. Through the dust blowing mechanism, the airbag is squeezed out by the downward movement of the sword grid under pressure. The airflow is blown out in a direction through the air blowing holes of the hollow guide plate. The airflow sweeps the surface of the plate and the sword grid at the moment the plate is placed, and removes aluminum chips, dust and other impurities in time, thus improving the quality of laser cutting. Attached Figure Description

[0021] Figure 1 This is a first-view perspective perspective view of a laser cutting machine provided by the present invention;

[0022] Figure 2 This is a second-view perspective perspective view of a laser cutting machine provided by the present invention;

[0023] Figure 3 This is a perspective view of a positioning and guiding mechanism on the top of the bed in a laser cutting machine provided by the present invention;

[0024] Figure 4 This is a perspective view of a shock-absorbing mechanism at the bottom of the blade grid in a laser cutting machine provided by the present invention;

[0025] Figure 5 This is a perspective view of a dust blowing mechanism in a laser cutting machine provided by the present invention.

[0026] In the diagram: 1. Bed; 2. Longitudinal movement assembly; 3. Lateral movement assembly; 4. First cylinder; 5. Laser welding head; 6. Sword grid; 7. Positioning guide mechanism; 71. Fixed seat; 72. Second cylinder; 73. Positioning guide plate; 8. Shock absorption mechanism; 81. Telescopic rod; 82. Spring; 9. Dust blowing mechanism; 91. Support plate; 92. Airbag; 93. Lower pressure plate; 94. Upper pressure plate; 95. Connecting rod; 96. Air inlet pipe; 97. Air outlet pipe; 98. Air blowing hole; 99. Air inlet check valve; 910. Air outlet check valve; 911. Filter; 10. Controller. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] like Figures 1-5 As shown, a laser cutting machine includes a bed 1, a longitudinal moving assembly 2, a transverse moving assembly 3, a first cylinder 4, a laser welding head 5, and a laser grating 6. The longitudinal moving assembly 2 is disposed on both sides of the bed 1, the transverse moving assembly 3 is disposed on the top of the moving seats of the two longitudinal moving assemblies 2, the first cylinder 4 is fixedly installed on the bottom of the moving seat of the transverse moving assembly 3, the laser welding head 5 is fixedly installed on the moving end of the first cylinder 4, and the laser grating 6 is disposed on the top of the bed 1. The machine also includes:

[0029] Positioning and guiding mechanisms 7 are set on both sides of the upper surface of the sword grid 6. The two positioning and guiding mechanisms 7 accurately guide the plate suspended by the vacuum suction cup and place it on the surface of the sword grid 6, avoiding the phenomenon of tilted cutting in the future. The positioning and guiding mechanism 7 includes a fixed base 71 fixedly set on one side of the upper surface of the sword grid 6. A second cylinder 72 is fixedly installed on the side wall of the fixed base 71. The moving end of the second cylinder 72 is fixedly installed with a positioning guide plate 73. The moving end of the second cylinder 72 pushes the positioning guide plate 73, so that the two positioning guide plates 73 simultaneously retract towards the middle or open outward until the inner spacing of the positioning guide plate 73 is completely matched with the width of the plate, which can guide and position the plate. The positioning guide plate 73 is a wear-resistant bent plate, and the bent part of the positioning guide plate 73 extends away from the middle of the sword grid 6. This structural design of the positioning guide plate 73 makes it easy to put the plate between the two positioning guide plates 73.

[0030] The shock absorption mechanism 8 is located between the lower surface of the sword grating 6 on both sides and the top of the bed 1 on both sides. When the plate falls on the surface of the sword grating 6, the shock absorption mechanism 8 provides a buffering effect to the sword grating 6, reducing the impact damage between the plate and the sword grating 6. The shock absorption mechanism 8 includes multiple telescopic rods 81 symmetrically arranged on one side of the lower surface of the sword grating 6. The lower ends of the multiple telescopic rods 81 are fixedly connected to the top of the bed 1, and the rod walls of the multiple telescopic rods 81 are all fitted with springs 82. When the sword grating 6 moves down, it simultaneously compresses the multiple symmetrically arranged telescopic rods 81 and buffer springs 82 on both sides. The elastic deformation of the springs 82 absorbs the impact kinetic energy generated by the falling plate, forming a flexible buffering effect.

[0031] A dust blowing mechanism 9 is installed on the side wall of the bed 1. The pressing end of the dust blowing mechanism 9 is connected to the side wall of the sword grid 6, and the air outlet end of the dust blowing mechanism 9 is connected to the positioning guide mechanism 7. The surface dropping action of the sword grid 6 forces the gas inside the dust blowing mechanism 9 to be pushed out through the positioning guide mechanism 7 and blow dust onto the surface of the board. The dust blowing mechanism 9 includes a support plate 91 fixedly installed on the side wall of the bed 1. An air bag 92 is fixedly installed on the surface of the support plate 91. A lower pressure plate 93 fixedly connected to the upper surface of the support plate 91 is fixedly installed on the bottom inner wall of the air bag 92. An upper pressure plate 94 is fixedly installed on the top inner wall of the air bag 92. A connecting rod 95 fixedly connected to one side of the sword grid 6 is fixedly installed on the upper surface of the upper pressure plate 94. A downwardly extending air inlet pipe 96 is fixedly installed on one side of the lower pressure plate 93. An air outlet pipe 97 is fixedly installed on one side of the upper pressure plate 94. One of the positioning guide plates 73 is a hollow structure, and multiple evenly distributed openings are made on the side of the positioning guide plate 73. The air inlet 98 and the outlet pipe 97 are fixedly connected at the end away from the airbag 92 to the side wall of the positioning guide plate 73. The wall of the inlet pipe 96 is fixedly equipped with an inlet one-way valve 99, which can prevent the gas inside the airbag 92 from flowing back. The wall of the outlet pipe 97 is fixedly equipped with an outlet one-way valve 910, which can prevent the gas inside the outlet pipe 97 from flowing back. The outlet pipe 97 is a rubber hose, which can ensure that the outlet pipe 97 moves with the positioning guide plate 73. The lower end of the inlet pipe 96 is fixedly equipped with a filter 911, which is a detachable structure. When the sword grid 6 is reset and moved upward under the action of the elastic force, it will pull the upper pressure plate 94 upward through the connecting rod 95. At this time, the compressed airbag 92 is restored and external gas is drawn in through the inlet pipe 96. When the external gas enters the airbag 92 through the inlet pipe 96, the filter 911 can filter the gas to ensure the cleanliness of the gas.

[0032] A controller 10 is fixedly installed on the side wall of the lateral moving component 3. The longitudinal moving component 2, the lateral moving component 3, the first cylinder 4, the laser welding head 5, and the positioning guide mechanism 7 are all electrically connected to the controller 10.

[0033] The operating principle of the present invention is described as follows: The operator first controls the transverse moving component 3 through the controller 10 to move the first cylinder 4 and the laser welding head 5 to one side of the bed 1 as a whole, so as to reserve sufficient and open loading space for the plate hoisting and avoid collision interference during the hoisting process;

[0034] Subsequently, based on the actual width of the aluminum alloy exterior wall panel to be cut, the extension and retraction of the second cylinders 72 on both sides are adjusted so that the moving end of the second cylinder 72 pushes the positioning guide plate 73 on the corresponding side. The positioning guide plates 73 on both sides simultaneously retract towards the middle or open outward until the inner spacing of the positioning guide plates 73 is fully adapted to the width of the panel, forming a limiting guide reference that fits against the side of the panel.

[0035] After the guide reference is set, the vacuum suction cup device is activated. The vacuum suction force is used to steadily lift the plate to be cut and slowly move it to the predetermined dropping position directly above the sword grid 6. As the vacuum suction cup is lowered at a uniform speed, the plate gradually approaches the upper surface of the sword grid 6. The inner guide surface of the positioning guide plates 73 on both sides will first contact the side of the plate to perform lateral limiting and guiding correction of the plate, effectively correcting the slight deviation during the lifting process, guiding the plate to fall steadily in the vertical direction, and finally accurately landing on the upper surface of the sword grid 6, ensuring the dimensional accuracy and straightness of subsequent laser cutting from the source.

[0036] When the plate falls smoothly onto the surface of the sword grid 6 under its own weight, it will exert a uniform downward pressure on the sword grid 6, causing the sword grid 6 to move downward as a whole. Simultaneously, it will compress the multiple symmetrically arranged telescopic rods 81 and buffer springs 82 on both sides. The elastic deformation of the springs 82 will absorb the impact kinetic energy generated by the falling plate, forming a flexible buffering effect. This will prevent the plate from making rigid hard contact with the spikes of the sword grid 6, prevent scratches and bumps on the bottom surface of the plate, and protect the spikes of the sword grid 6 from bending, deforming or wearing due to excessive impact, thus extending the service life of the sword grid 6.

[0037] As the sword grid 6 is pressed down, the upper pressure plate 94 moves downward synchronously through the connecting rod 95 on one side. The upper pressure plate 94 moves the top of the elastic airbag 92 downward, so that the air stored inside the airbag 92 is quickly forced into the connected air outlet pipe 97, and then transported to the internal air cavity of the positioning guide plate 73 on one side through the air outlet pipe 97. Finally, it is blown upward evenly by multiple air outlets evenly arranged on the positioning guide plate 73. At the moment when the plate is about to contact the sword grid 6, the airflow sweeps the lower surface of the plate and the upper surface of the sword grid 6 in all directions, effectively removing attached aluminum chips, dust, debris and tiny impurities, ensuring that the contact surface between the plate and the sword grid 6 is clean and free of foreign objects, creating clean and stable working conditions for subsequent high-precision and high-quality laser cutting.

[0038] After the positioning, buffering, and purging are completed, the controller 10 automatically triggers the retraction action of the second cylinder 72, driving the positioning guide plates 73 on both sides to move outward and retreat to the safe avoidance position on both sides of the sword grid 6, so as to make enough unobstructed working space for the movement of the laser cutting head and ensure that subsequent laser cutting operations can be carried out smoothly and safely.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A laser cutting machine, comprising a bed (1), a longitudinal moving assembly (2), a transverse moving assembly (3), a first cylinder (4), a laser welding head (5), and a scimitar (6), wherein the longitudinal moving assembly (2) is disposed on both sides of the bed (1), the transverse moving assembly (3) is disposed on the top of the moving seat of the two longitudinal moving assemblies (2), the first cylinder (4) is fixedly installed on the bottom of the moving seat of the transverse moving assembly (3), the laser welding head (5) is fixedly installed on the moving end of the first cylinder (4), and the scimitar (6) is disposed on the top of the bed (1), characterized in that, Also includes: The positioning and guiding mechanism (7) is set on both sides of the upper surface of the sword grid (6). The two positioning and guiding mechanisms (7) accurately guide the plate suspended by the vacuum suction cup and place it on the surface of the sword grid (6) to avoid the phenomenon of tilted cutting in the future. The shock absorption mechanism (8) is located between the lower surface of the sword rail (6) and the top two sides of the bed (1). When the plate falls on the surface of the sword rail (6), the shock absorption mechanism (8) provides a buffer effect to the sword rail (6) to reduce the impact damage between the plate and the sword rail (6). The dust blowing mechanism (9) is set on the side wall of the bed (1). The pressing end of the dust blowing mechanism (9) is connected to the side wall of the sword grid (6), and the air outlet end of the dust blowing mechanism (9) is connected to the positioning guide mechanism (7). The surface dropping action of the sword grid (6) will press out the gas inside the dust blowing mechanism (9) through the positioning guide mechanism (7) and blow dust onto the surface of the board.

2. The laser cutting machine according to claim 1, characterized in that, The positioning and guiding mechanism (7) includes a fixed seat (71) fixedly disposed on one side of the upper surface of the sword grid (6), a second cylinder (72) is fixedly disposed on the side wall of the fixed seat (71), and a positioning guide plate (73) is fixedly disposed on the moving end of the second cylinder (72).

3. A laser cutting machine according to claim 2, characterized in that, The positioning guide plate (73) is a wear-resistant bent plate, and the curved part of the positioning guide plate (73) extends away from the middle of the sword grid (6).

4. A laser cutting machine according to claim 1, characterized in that, The shock absorption mechanism (8) includes multiple telescopic rods (81) symmetrically arranged on one side of the lower surface of the sword grid (6). The lower ends of the multiple telescopic rods (81) are fixedly connected to the top side of the bed (1), and the rod walls of the multiple telescopic rods (81) are all fitted with springs (82).

5. A laser cutting machine according to claim 2, characterized in that, The dust blowing mechanism (9) includes a tray (91) fixedly installed on the side wall of the bed (1). An air bag (92) is fixedly installed on the surface of the tray (91). A lower pressure plate (93) is fixedly installed on the bottom inner wall of the air bag (92) and fixedly connected to the upper surface of the tray (91). An upper pressure plate (94) is fixedly installed on the top inner wall of the air bag (92). A connecting rod (95) is fixedly installed on the upper surface of the upper pressure plate (94) and fixedly connected to one side of the sword grid (6). An air inlet pipe (96) extending downward is fixedly installed on one side of the lower pressure plate (93). An air outlet pipe (97) is fixedly installed on one side of the upper pressure plate (94). One of the positioning guide plates (73) is a hollow structure, and multiple evenly distributed air blowing holes (98) are opened on the side of the positioning guide plate (73). The end of the air outlet pipe (97) away from the air bag (92) is fixedly connected to the side wall of the positioning guide plate (73).

6. A laser cutting machine according to claim 5, characterized in that, The intake pipe (96) is fixedly provided with an intake one-way valve (99), and the exhaust pipe (97) is fixedly provided with an exhaust one-way valve (910), and the exhaust pipe (97) is a rubber hose.

7. A laser cutting machine according to claim 5, characterized in that, The lower end of the air intake pipe (96) is fixedly equipped with a filter (911), and the filter (911) is a detachable structure.

8. A laser cutting machine according to claim 1, characterized in that, The side wall of the lateral moving component (3) is fixedly provided with a controller (10), and the longitudinal moving component (2), the lateral moving component (3), the first cylinder (4), the laser welding head (5) and the positioning guide mechanism (7) are all electrically connected to the controller (10).

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