Protective device of laser cutting machine

Abstract

The utility model discloses a protective device of a laser cutting machine in the technical field of laser cutting machines, which comprises a workbench, a laser cutting machine cabin arranged above the workbench, a laser cutting head arranged on the laser cutting machine cabin, a shielding mechanism arranged on the outer side of the laser cutting head, and a fireproof mechanism arranged on the outer side of the laser cutting machine cabin. The protection device of the laser cutting machine is additionally provided with the shielding mechanism and the fireproof mechanism, the shielding mechanism is of an adjustable four-side shielding structure, the plate body is used for shielding the outer side of the laser cutting head, the basic cutting effect of the laser cutting head cannot be affected, laser beams of the laser cutting head and sparks caused by cutting can be blocked, and the safety of the laser cutting machine is improved. The safety and the reliability of the laser cutting machine are effectively improved; the fire prevention mechanism adopts a carbon dioxide guidance mode, when a fire accident occurs, a fire extinguishing agent can be rapidly guided to directly reach the laser cutting head, the oxygen concentration is rapidly reduced so as to restrain fire extension, and then the fire safety control effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine technology, specifically a protective device for a laser cutting machine. Background Technology

[0002] A laser cutting machine is a high-precision device that uses a high-energy laser beam to cut materials. Its working principle involves generating a high-intensity focused laser beam, which is then directed onto the surface of the material to be cut. The laser energy rapidly heats the material, raising its temperature to a melting or vaporizing state, thus achieving cutting. Laser cutting offers advantages such as high cutting speed, smooth kerf, and a small heat-affected zone. It is suitable for various materials, including metals, plastics, wood, glass, and textiles. Modern laser cutting machines are often equipped with CNC systems, enabling automated cutting of complex shapes. They are widely used in industries such as machinery manufacturing, automotive, aerospace, and electronics. Laser cutting technology not only improves production efficiency but also reduces production costs, making it one of the important processing methods in modern manufacturing. With the continuous development of laser technology, the precision and efficiency of laser cutting machines are constantly improving, driving technological progress and innovation across various industries.

[0003] Based on existing laser cutting machines, it has been found that existing protective devices may not be able to completely block the leakage of laser beams during the laser cutting process, resulting in radiation damage to people in the vicinity. The laser cutting process generates high temperatures and sparks, posing a risk of fire.

[0004] Based on this, the present invention designs a protective device for a laser cutting machine to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a protective device for a laser cutting machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a protective device for a laser cutting machine, comprising a worktable, a laser cutting machine compartment mounted above the worktable, a laser cutting head mounted on the laser cutting head compartment, a shielding mechanism disposed on the outer side of the laser cutting head, and a fireproof mechanism disposed on the outer side of the laser cutting machine compartment. The shielding mechanism includes a mounting plate and a barrier plate. The mounting plate is fixedly mounted on the outer wall of the laser cutting head, and a barrier plate is disposed below the mounting plate. Four barrier plates are located below the mounting plate. The fireproof mechanism includes a storage box and a piston pump. The storage box is fixedly mounted at the rear end of the laser cutting machine compartment, and a piston pump is fixedly mounted on the outer wall of the storage box.

[0007] Optionally, the shielding mechanism further includes a bearing housing and a rotating rod body, wherein the bearing housing is fixedly installed at the lower end of the mounting plate, and the rotating rod body is installed inside the bearing housing.

[0008] Optionally, a second bearing bracket is fixedly installed on the outer wall of the barrier plate, and a gas rod body is installed on the second bearing bracket.

[0009] Optionally, a first bearing bracket is installed at the upper end of the gas rod body, and the first bearing bracket is fixedly installed at the lower end of the mounting plate.

[0010] Optionally, the baffle plate is mounted on the rotating rod body, and a second bearing bracket and a gas rod body are mounted on the outer wall of each baffle plate.

[0011] Optionally, the fire prevention mechanism further includes a first air pipe head and an air extraction pipe. The first air pipe head is fixedly installed at the rear end of the piston pump, and the air extraction pipe is fixedly installed at the rear end of the first air pipe head. The air extraction pipe is inserted into the interior of the storage box.

[0012] Optionally, a second air pipe head is fixedly installed at the upper end of the piston pump, and an air outlet pipe is fixedly connected to the upper end of the second air pipe head, the air outlet pipe extending to the front of the laser cutting head.

[0013] Optionally, a jet nozzle is fixedly connected to the end of the air outlet pipe away from the piston pump, and the jet nozzle is fixedly installed in the middle of the mounting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, a shielding mechanism is provided. The shielding mechanism adopts an adjustable four-sided shielding structure. The plate body is used to shield the outside of the laser cutting head, which will not affect the basic cutting effect of the laser cutting head. It can also block the laser beam of the laser cutting head and the sparks generated by cutting, effectively improving the safety and reliability of this laser cutting machine.

[0016] 2. In this utility model, a fire prevention mechanism is provided. The fire prevention mechanism adopts the method of guiding the fire extinguishing agent (liquid carbon dioxide). In the event of an accidental fire, the fire extinguishing agent can be quickly guided to the laser cutting head. At the point of fire, the oxygen concentration is quickly reduced to suppress the spread of the fire, thereby achieving the effect of fire safety control. Attached Figure Description

[0017] Figure 1 This is a three-dimensional front view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model from a frontal view.

[0019] Figure 3This is a top view of the structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional rear view structure of this utility model;

[0021] Figure 5 This is a three-dimensional sectional view of the structure of this utility model. Figure 1 ;

[0022] Figure 6 This is a three-dimensional sectional view of the structure of this utility model. Figure 2 ;

[0023] Figure 7 This is a three-dimensional sectional view of the structure of this utility model. Figure 3 ;

[0024] Figure 8 This utility model Figure 5 A magnified three-dimensional structural diagram of point A in the middle;

[0025] Figure 9 This utility model Figure 6 A magnified three-dimensional structural diagram of point B in the middle.

[0026] In the diagram: 1. Workbench; 2. Laser cutting machine compartment; 3. Laser cutting head; 4. Shielding mechanism; 401. Mounting plate; 402. Bearing seat; 403. Rotating rod body; 404. Barrier plate; 405. First bearing frame; 406. Air rod body; 407. Second bearing frame; 5. Fireproof mechanism; 501. Storage box; 502. Piston pump; 503. First air pipe head; 504. Air extraction pipe; 505. Second air pipe head; 506. Air outlet pipe; 507. Air jet nozzle. Detailed Implementation

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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 this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-9 In this embodiment of the present invention, a protective device for a laser cutting machine includes a worktable 1, a laser cutting machine compartment 2 mounted on top of the worktable 1, a laser cutting head 3 mounted on the laser cutting head 3, a shielding mechanism 4 disposed on the outside of the laser cutting head 3, and a fireproof mechanism 5 disposed on the outside of the laser cutting machine compartment 2. The shielding mechanism 4 includes a mounting plate 401 and barrier plates 404. The mounting plate 401 is fixedly mounted on the outer wall of the laser cutting head 3, and the barrier plates 404 are disposed below the mounting plate 401. The four barrier plates 404 are located below the mounting plate 401. 4 also includes a bearing housing 402 and a rotating rod body 403. The bearing housing 402 is fixedly installed at the lower end of the mounting plate 401. The rotating rod body 403 is installed inside the bearing housing 402. A second bearing bracket 407 is fixedly installed on the outer wall of the baffle plate 404. A gas rod body 406 is installed on the second bearing bracket 407. A first bearing bracket 405 is installed at the upper end of the gas rod body 406. The first bearing bracket 405 is fixedly installed at the lower end of the mounting plate 401. The baffle plate 404 is installed on the rotating rod body 403. A second bearing bracket 407 and a gas rod body 406 are installed on the outer wall of each baffle plate 404.

[0031] See Figure 5 , Figure 8 and Figure 9Initially, before activation, the pneumatic rod 406 needs to be connected to the control terminal. When activated, four baffles 404 shield the outside of the laser cutting head 3, forming a basic baffle structure that can effectively block the laser beam from the laser cutting head 3 and prevent sparks from flying. At the same time, the pneumatic rod 406 can be extended and retracted to adjust the flipping state of the baffles 404, thereby adjusting the shielding range of the baffles 404. Especially when cutting irregularly shaped workpieces, in order to avoid the baffles 404 blocking the workpiece, the position of the baffles 404 can be adjusted to adapt, thereby avoiding obstruction of the cutting operation.

[0032] Among them, the shielding mechanism 4 adopts an adjustable four-sided shielding structure, which uses a plate to shield the outside of the laser cutting head 3. It will not affect the basic cutting effect of the laser cutting head 3, and can also block the laser beam of the laser cutting head 3 and the sparks brought by cutting, effectively improving the safety and reliability of this laser cutting machine.

[0033] The fireproof mechanism 5 includes a storage tank 501 and a piston pump 502. The storage tank 501 is fixedly installed at the rear end of the laser cutting machine compartment 2. The piston pump 502 is fixedly installed on the outer wall of the storage tank 501. The fireproof mechanism 5 also includes a first air pipe head 503 and an exhaust pipe 504. The first air pipe head 503 is fixedly installed at the rear end of the piston pump 502. The exhaust pipe 504 is fixedly installed at the rear end of the first air pipe head 503. The exhaust pipe 504 is inserted into the interior of the storage tank 501. A second air pipe head 505 is fixedly installed at the upper end of the piston pump 502. An exhaust pipe 506 is fixedly connected to the upper end of the second air pipe head 505. The exhaust pipe 506 extends to the front of the laser cutting head 3. An air jet nozzle 507 is fixedly connected to the end of the exhaust pipe 506 away from the piston pump 502. The air jet nozzle 507 is fixedly installed in the middle of the mounting plate 401.

[0034] See Figure 6 , Figure 7 and Figure 9 Before activation, it is necessary to ensure that high-pressure carbon dioxide is injected into the storage tank 501 and the piston pump 502 is connected to the control terminal. When activated, the piston pump 502 is started to quickly extract the high-pressure carbon dioxide in the storage tank 501 and quickly guide it to the laser cutting head 3 through the gas outlet pipe 506 to reduce the oxygen concentration in the vicinity and thus suppress the spread of the fire.

[0035] Among them, the fire prevention mechanism 5 adopts the method of guiding fire extinguishing agent (liquid carbon dioxide). In the event of an accidental fire, it can quickly guide the fire extinguishing agent to the laser cutting head 3. At the point of fire, it can quickly reduce the oxygen concentration to suppress the spread of the fire and thus achieve the effect of fire safety control.

[0036] The working principle of this utility model is as follows: First, when the laser cutting machine is performing cutting operations, the laser cutting head 3 is placed above the worktable 1 for high-precision material cutting. To prevent the laser beam from leaking out and the sparks generated during the cutting process from harming the surrounding environment, the shielding mechanism 4 adopts an adjustable four-sided shielding structure. This structure consists of multiple adjustable baffles 404. These baffles 404 can be flexibly adjusted according to the shape of the workpiece and the cutting angle, thereby effectively blocking the laser beam and sparks while ensuring the cutting effect, protecting surrounding personnel and equipment from harm. At the same time, in order to effectively deal with potential fire risks, a fire prevention mechanism 5 is added. This mechanism includes a storage tank 501 and a piston pump 502. The storage tank 501 is used to store high-pressure carbon dioxide, and the piston pump 502 is responsible for quickly extracting the storage tank 501. When starting the laser cutting machine, the operator must ensure that sufficient high-pressure carbon dioxide is injected into the storage tank 501 and connect the piston pump 502 to the control terminal. After the laser cutting machine is started, the piston pump 502 begins to rapidly extract carbon dioxide from the storage tank 501 and quickly delivers it to the front of the laser cutting head 3 through the exhaust pipe 506. During this process, the injection of carbon dioxide effectively reduces the surrounding oxygen concentration, thereby suppressing the spread of fire and reducing the possibility of fire. In summary, the protective device of this laser cutting machine, through the cooperation of the shielding mechanism 4 and the fireproof mechanism 5, forms a highly efficient safety protection system. This system can not only prevent the hazards of laser radiation and sparks during the cutting process, but also take measures quickly in emergency situations to control fire risks, providing comprehensive safety protection for laser cutting operations.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective device of a laser cutting machine, comprising a workbench (1), a laser cutting machine cabin (2) is installed above the workbench (1), a laser cutting head (3) is installed on the laser cutting machine cabin (2), characterized in that: The outer side of the laser cutting head (3) is provided with a shielding mechanism (4), the outer side of the laser cutting machine warehouse (2) is provided with a fire prevention mechanism (5), the shielding mechanism (4) comprises a mounting plate (401) and a blocking plate (404), the outer wall of the laser cutting head (3) is fixedly installed with the mounting plate (401), the lower side of the mounting plate (401) is provided with the blocking plate (404), four blocking plates (404) are located below the mounting plate (401), the fire prevention mechanism (5) comprises a storage box (501) and a piston pump (502), the rear end of the laser cutting machine warehouse (2) is fixedly installed with the storage box (501), and the outer wall of the storage box (501) is fixedly installed with the piston pump (502).

2. A guard for a laser cutting machine according to claim 1, characterised in that: The shielding mechanism (4) further comprises a bearing seat (402) and a rotating rod body (403), the lower end of the mounting plate (401) is fixedly installed with the bearing seat (402), and the bearing seat (402) is internally installed with the rotating rod body (403).

3. A guard for a laser cutting machine according to claim 2, wherein: The outer wall of the blocking plate (404) is fixedly installed with a second bearing frame (407), and the second bearing frame (407) is installed with a gas rod body (406).

4. A guard for a laser cutting machine according to claim 3, wherein: The upper end of the gas rod body (406) is installed with a first bearing frame (405), and the first bearing frame (405) is fixedly installed at the lower end of the mounting plate (401).

5. A guard for a laser cutting machine as claimed in claim 1, wherein: The blocking plate (404) is installed on the rotating rod body (403), and the outer wall of each blocking plate (404) is installed with a second bearing frame (407) and a gas rod body (406).

6. A guard for a laser cutting machine as claimed in claim 1, wherein: The fire prevention mechanism (5) further comprises a first gas pipe head (503) and an air exhaust pipe (504), the rear end of the piston pump (502) is fixedly installed with the first gas pipe head (503), the rear end of the first gas pipe head (503) is fixedly installed with the air exhaust pipe (504), and the air exhaust pipe (504) is inserted into the inside of the storage box (501).

7. A guard for a laser cutting machine as claimed in claim 1, wherein: The upper end of the piston pump (502) is fixedly installed with a second gas pipe head (505), the upper end of the second gas pipe head (505) is fixedly connected with an air outlet pipe (506), and the air outlet pipe (506) extends to the front of the laser cutting head (3).

8. A guard for a laser cutting machine according to claim 7, characterised in that: The end of the air outlet pipe (506) away from the piston pump (502) is fixedly connected with a gas jet nozzle (507), and the gas jet nozzle (507) is fixedly installed in the middle of the mounting plate (401).

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