A blowing device for a laser cutting machine

Abstract

The utility model provides a kind of for laser cutting machine's blowing device, including processing platform, laser module and blowing mechanism, blowing mechanism is installed above processing platform, laser module is set up above blowing mechanism, the processing platform includes table body and cover body covered on table body, table body top surface is formed with suction chamber, the top wall of suction chamber is equipped with adsorption hole, the side of suction chamber is equipped with suction hole and is communicated with outside, the blowing mechanism includes blowing member and space sliding device, blowing member is movably installed in cover body, blowing member is moved in cover body space by space sliding device drive, so that the airflow that it blows is blown to laser cutting position.The blowing device of laser cutting machine provided by the utility model improves cutting quality, and special gas recycling can be used, reducing resource waste.

Description

Technical Field

[0001] This utility model relates to the field of laser cutting machine tool technology, and in particular to an air blowing device for laser cutting machine tools. Background Technology

[0002] Laser cutting machines are devices that use a focused, high-power-density laser beam to cut and drill holes in materials. They are characterized by high precision, high efficiency, and quiet operation.

[0003] Currently, different types of auxiliary gases are typically blown into the machining area when processing workpieces made of different materials to meet the varying processing requirements. For example, when machining carbon steel, high-tensile plates, or thicker stainless steel, oxygen is usually blown in to improve the material's combustion efficiency, accelerate the cutting speed, and reduce processing time. When machining materials such as iron and aluminum, nitrogen is usually blown in to prevent oxidation and discoloration of the cut surface, which would reduce cutting quality.

[0004] In existing laser cutting machine tools, the air blowing operation generally places the air nozzle on one side of the laser head. The air nozzle moves synchronously with the movement of the laser head to blow air onto the laser-cut workpiece. In this air blowing method, the auxiliary gas will directly drift into the air, causing an odor, and there is a lot of waste of auxiliary gas, which increases the processing cost. Utility Model Content

[0005] In view of the above, it is necessary for this utility model to provide an air blowing device for laser cutting machine tools that controls the dispersion of auxiliary gas and reduces the waste of auxiliary gas.

[0006] The technical solution of this utility model is as follows:

[0007] An air blowing device for a laser cutting machine tool includes a processing platform, a laser module, and an air blowing mechanism. The air blowing mechanism is installed above the processing platform, and the laser module is mounted above the air blowing mechanism. The processing platform includes a platform body and a cover body covering the platform body. An air extraction chamber is formed on the top surface of the platform body. An adsorption hole is opened on the top wall of the air extraction chamber, and an air extraction hole is opened on one side of the air extraction chamber to communicate with the outside. The air blowing mechanism includes an air blowing component and a spatial sliding device. The air blowing component is movably installed in the cover body. The air blowing component is driven to move within the space of the cover body by the spatial sliding device, so that the airflow blown out is directed towards the laser cutting position.

[0008] Furthermore, the air blowing component includes a double-layered cylindrical wall and a bottom wall formed between the double-layered cylindrical wall, forming an air cavity between the double-layered cylindrical wall, and a plurality of air guide holes are equally spaced on the bottom wall.

[0009] Furthermore, the air guide hole has an inclined air guide surface, so that the blown airflow is directed towards the laser cutting position on the workpiece.

[0010] Furthermore, the outer wall of the double-layered cylinder is provided with an air inlet for connection to an external air supply pipe.

[0011] Furthermore, the cover includes a peripheral wall and a top wall, both of which are made of transparent glass.

[0012] Furthermore, the laser module includes a laser and a beam control system. The laser is positioned above the processing platform, and the beam control system is connected below the laser. The laser emits a laser beam that irradiates the beam control system, and the beam control system controls the laser beam to cut the workpiece.

[0013] Compared with existing technologies, this utility model provides an air blowing device for laser cutting machine tools. By setting up a cover, it can prevent the auxiliary gas from leaking out and polluting the environment. By setting up a movable air blowing component inside the cover, the air blowing component can move according to the laser cutting path, which is conducive to the airflow direction of the air guide hole facing the cutting point on the workpiece. By setting up an adsorption structure, the auxiliary gas can be collected and reused, which greatly reduces the waste of auxiliary gas. Attached Figure Description

[0014] Figure 1 This is a perspective view of a preferred embodiment of the present invention: an air blowing device for a laser cutting machine tool.

[0015] Figure 2 A three-dimensional cross-sectional view of the air blowing device of a laser cutting machine tool;

[0016] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 This is a bottom-view perspective view of the air blowing device.

[0018] The annotations in the attached figures are explained as follows:

[0019] 1. Processing platform; 11. Platform body; 111. Air extraction chamber; 112. Adsorption hole; 12. Cover body; 121. Support column; 122. Top wall of the cover; 2. Laser module; 21. Laser; 22. Beam control system; 3. Air blowing mechanism; 31. Air blowing component; 311. Air chamber; 312. Air inlet; 313. Air guide hole; 32. Spatial sliding device; 321. Moving seat; 322. Lead screw; 323. Guide rod; 324. Slider. Detailed Implementation

[0020] 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. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] Please see Figures 1-2 A blowing device for a laser cutting machine tool includes a processing platform 1, a laser module 2, and a blowing mechanism 3. The processing platform 1 is set on a horizontal surface and is used to place the workpiece to be processed. The blowing mechanism 3 is installed above the processing platform 1, and the laser module 2 is mounted above the blowing mechanism 3. The laser module 2 is vertically facing the blowing mechanism of the processing platform 1, and emits a laser beam that passes through the blowing mechanism 3 to irradiate the workpiece on the processing platform 1, cutting the workpiece. The blowing mechanism 3 blows out auxiliary gas to assist the laser beam in completing the cutting operation.

[0022] The processing platform 1 includes a platform body 11 and a cover 12 covering the platform body 11. An air extraction chamber 111 is formed on the top surface of the platform body 11, and suction holes 112 are evenly spaced on the top surface of the air extraction chamber 111. An air extraction hole 113 is provided on one side of the air extraction chamber 111 to communicate with the outside and to connect an air extraction device. The cover 12 covers the top surface of the platform body 11, sealing the space above the platform body 11. An air blowing mechanism 3 is movably mounted on the bottom surface of the top wall of the cover 12.

[0023] The extraction device draws out the gas in the extraction chamber 111, creating a negative pressure. The workpiece is then adsorbed and fixed through the adsorption hole 112. At the same time, the gas in the cover 12 can also flow through the top surface of the extraction chamber 111 and into the extraction chamber 111 through other unblocked adsorption holes 12. The flowing gas can carry the debris generated during cutting into the extraction chamber 111, making it easier to collect the debris. The gas drawn by the extraction device can be further extracted by the gas separation device. The extracted auxiliary gas used for laser cutting can be re-entered into the blowing mechanism 3 for recycling.

[0024] like Figure 2 and Figure 3 As shown, the enclosure 12 is used to contain the gas, allowing the auxiliary gas blown out by the blowing mechanism 3 to be collected and utilized. It also prevents the dispersion of smoke or odors during laser cutting. The enclosure 12 includes support columns 121, peripheral walls, and a top wall 122. The support columns 121 are installed at the four corners of the top surface of the platform 11 to support the top wall 122. The peripheral walls and top wall 122 are made of transparent material, such as transparent glass. Understandably, the front side of the peripheral walls may have an openable door for easy loading and unloading.

[0025] The laser module 2 includes a laser 21 and a beam control system 22. The laser 21 is positioned above the processing platform 1, and the laser beam generated by the laser 21 is emitted vertically downwards. The beam control system 22 is installed below the laser 21. The top of the beam control system 22 receives the laser emitted by the laser 21. After being processed within the beam control system 22, the laser beam is emitted from the bottom to cut the workpiece.

[0026] The air blowing mechanism 3 includes an air blowing component 31, which includes a double-layered cylindrical wall and a bottom wall formed between the double-layered cylindrical walls. An air cavity 311 is formed between the double-layered cylindrical walls. An air inlet 312 is provided on the outer cylindrical wall for connection to an external air supply pipe. Several air guide holes 313 are provided at equal intervals on the bottom wall between the double-layered cylindrical walls. The air guide holes 313 have an inclined air guiding surface, which facilitates the airflow to be blown towards the laser cutting position of the workpiece, so that the debris generated by cutting will be blown up by the gas, avoiding the debris from being deposited in the cutting groove.

[0027] Please refer to the following: Figure 4 The air blowing component 31 is mounted on a cross-shaped spatial sliding device 32, which facilitates the movement of the air blowing component 31 within the cover 12 below the top wall 122. The spatial sliding device 32 is common in the industry and includes a horizontal moving module and a vertical moving module mounted on the horizontal moving module. Both the horizontal moving module and the vertical moving module can adopt a drive structure of screw and motor. For example, if the horizontal moving module is mounted on the bottom surface of the top wall 122 and the air blowing component 31 is mounted on the vertical moving module, the movement of the air blowing component 31 in the spatial plane can be realized.

[0028] In this embodiment, the spatial sliding device 32 includes a movable seat 321, two lead screws 322, two guide rods 323, and four sliders 324. The movable seat 321 is sleeved on the air blowing component 31. The two lead screws 322 are arranged in a cross shape on the movable seat 321, with each end of the lead screw 322 extending to opposite ends of the top wall 122. Each guide rod 323 passes through the movable seat 321 parallel to each lead screw 322, and the length of the guide rod 323 is the same as the length of the lead screw 322. The four sliders 324 are respectively disposed at the ends of the two lead screws 322 and are slidably connected to the bottom surface of the top wall 122. A motor (not shown) is connected to one end of each of the two lead screws 322. The motor is fixed on the slider 324, and the motor drives the lead screws 322 to rotate. The lead screws 322 drive the movable seat 321 to move along the length direction of the guide rods 323. Specifically, the lead screw 322 and the guide rod 323 pass through the two sides of the movable seat 321 respectively, so that the air blowing component 31 is located between the lead screw 322 and the guide rod 323, so as to stabilize the air blowing component 31 when the movable seat 322 drives it to move.

[0029] The working principle of the air blowing device for laser cutting machine tools of this utility model is as follows:

[0030] The laser beam emitted by laser 21 is processed by beam control system 22 and then emitted through the top wall 122 to irradiate the workpiece surface for cutting. Simultaneously, the air guide hole of the air blowing component 31 blows auxiliary gas to the laser cutting position on the workpiece. This blows the cutting debris onto the upper surface of the platform 11 and draws it into the suction chamber 111 through the adsorption hole 112. The auxiliary gas escaping into the cover 12 does not overflow and is extracted by the suction device. As the laser moves along the cutting path on the workpiece surface, the spatial sliding device moves the air blowing component 31, ensuring that the airflow of auxiliary gas always blows towards the laser and the cutting position on the workpiece surface.

[0031] In summary, the air blowing device for laser cutting machine tools provided by this utility model, by setting up a cover, can prevent the auxiliary gas from leaking and dissipating. By setting a movable air blowing component inside the cover, the air blowing component can move according to the laser cutting path. Furthermore, by opening air guide holes on the bottom surface of the air blowing component, the airflow direction from the air guide holes is directed towards the cutting point on the workpiece, which is beneficial for blowing out debris at the cutting point. It can be understood that by adjusting the height of the air blowing head to blow air at close range, the situation of debris getting stuck and unable to be blown out of the cutting groove can be effectively avoided, thus effectively improving the processing quality of laser cutting. In addition, by setting up an adsorption structure, the auxiliary gas can be collected, and it can also be separated and reused by a gas separation device, greatly reducing the waste of auxiliary gas.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An air blowing device for a laser cutting machine tool, comprising a processing platform (1), a laser module (2), and an air blowing mechanism (3), wherein the air blowing mechanism (3) is mounted above the processing platform (1), and the laser module (2) is mounted above the air blowing mechanism (3), characterized in that: The processing platform (1) includes a platform (11) and a cover (12) covering the platform (11). The top surface of the platform (11) forms an air extraction chamber (111). The top wall of the air extraction chamber (111) is provided with an adsorption hole (112). One side of the air extraction chamber (111) is provided with an air extraction hole (113) communicating with the outside. The blowing mechanism (3) includes a blowing component (31) and a space sliding device (32). The blowing component (31) is movably installed in the cover (12). The space sliding device (32) drives the blowing component (31) to move in the space inside the cover (12), so that the airflow blown out is directed towards the laser cutting position. The space sliding device (32) includes a movable seat (321), two lead screws (322), two guide rods (323), and four sliders (324). The movable seat (321) is sleeved on the outside of the air blowing component (31). The two lead screws (322) are arranged in a cross shape on the movable seat (321). The guide rods (323) pass through the movable seat (321) parallel to the lead screws (322). The four sliders (324) are respectively set at both ends of the two lead screws (322) and are slidably connected to the bottom surface of the top wall (122). One end of the lead screw (322) is connected to a motor. The motor is fixed on the slider (324). The motor drives the lead screw (322) to rotate, and the lead screw (322) drives the movable seat (321) to move.

2. The air blowing device according to claim 1, characterized in that: The air blowing component (31) includes a double-layered cylindrical wall and a bottom wall formed between the double-layered cylindrical wall. An air cavity (311) is formed between the double-layered cylindrical wall, and a plurality of air guide holes (313) are opened at equal intervals on the bottom wall.

3. The air blowing device according to claim 2, characterized in that: The air guide hole (313) has an inclined air guide surface, so that the blown airflow is directed towards the laser cutting position of the workpiece.

4. The air blowing device according to claim 2, characterized in that: The outer wall of the double-layered cylinder is provided with an air inlet (312) for connection to an external air supply pipe.

5. The air blowing device according to claim 1, characterized in that: The cover (12) includes a peripheral wall and a top wall (122), and the peripheral wall and the top wall (122) are transparent glass.

6. The air blowing device according to claim 1, characterized in that: The laser module (2) includes a laser (21) and a beam control system (22). The laser (21) is located above the processing platform (1), and the beam control system (22) is connected below the laser (21). The laser (21) emits a laser beam that irradiates the beam control system (22), and the beam control system (22) controls the laser beam to cut the workpiece.

Images