Gas path system and laser processing equipment

Abstract

The utility model belongs to the technical field of laser processing, and relates to a gas path system and laser processing equipment. The gas path system provided by the embodiment of the utility model comprises a first gas path used for introducing first gas, a second gas path used for introducing second gas, a third gas path used for introducing third gas, a main gas path connected with an external processing device, and a proportion adjusting assembly. The third gas path comprises a main path connected with the external gas storage device, a first branch path and a second branch path, wherein the first branch path and the second branch path are connected with the main path, and the second branch path is connected with the external machining device so as to cool the external machining device through third gas. The proportion adjusting assembly communicates with the first gas path, the second gas path, the first branch path and the main gas path so as to input single or mixed gas of the first gas, the second gas and the third gas into an external machining device through the main gas path. The laser processing equipment provided by the embodiment of the utility model comprises the gas path system. According to the embodiment of the invention, three auxiliary gases can be input in a switching manner, and the application range is wide.

Description

Technical Field

[0001] This application belongs to the field of laser processing technology, and more specifically, relates to a gas path system and laser processing equipment. Background Technology

[0002] Laser cutting machines use laser beams instead of traditional mechanical blades, offering advantages such as high precision, fast cutting speed, no limitation on cutting patterns, automatic layout to save materials, smooth cuts, and low processing costs. They will gradually improve upon or replace traditional metal cutting equipment.

[0003] Laser cutting machines require different assist gases for cutting different materials. The required pressure and flow rate of the assist gas vary depending on the thickness of the material being cut. Common assist gases include air, nitrogen, and oxygen. Currently, laser cutting machine gas systems typically only have one type of assist gas, limiting their applicability. Utility Model Content

[0004] This application provides a gas path system and laser processing equipment that can switch between three auxiliary gases, making it adaptable to a wide range of applications.

[0005] The technical solution adopted in this application embodiment is: to provide a gas path system, including:

[0006] The first gas passage is used to introduce the first gas;

[0007] The second gas passage is used to introduce the second gas.

[0008] The third gas path is used to introduce a third gas, including a main path, a first branch path and a second branch path. The main path is connected to an external gas storage device. The main path is connected to the first branch path and the second branch path. The second branch path is connected to an external processing device to cool the external processing device through the third gas.

[0009] The main gas path is connected to an external processing device, which inputs a single gas or a mixture of the first gas, the second gas, and the third gas into the external processing device for processing.

[0010] The proportional adjustment component is connected to the first branch and the main gas path of the first gas path, the second gas path, and the third gas path, and is used to input a single gas or a mixture of gases from the first gas, the second gas, and the third gas into the main gas path.

[0011] Optionally, the second branch line is provided with a second pressure regulating component and a second on / off control component. The second pressure regulating component is used to adjust the air pressure in the second branch line, and the second on / off control component is used to control the air flow in the second branch line.

[0012] Optionally, the third air path further includes a third branch path connected to the main air path, and the third branch path is connected to an external processing device to assist the external processing device in performing processing steps.

[0013] Optionally, the third air circuit also includes a fourth branch circuit connected to the main circuit. The fourth branch circuit is connected to an external solenoid valve and cylinder to control the switching of the external solenoid valve and cylinder.

[0014] Optionally, the fourth branch line is provided with a fourth pressure regulating component, a fourth pressure detection component, and a lubrication transmission component. The fourth pressure regulating component is used to regulate the air pressure in the fourth branch line, the fourth pressure detection component is used to detect the pressure in the fourth branch line, and the lubrication transmission component is used to deliver lubricating fluid into the fourth branch line.

[0015] Optionally, the third air path further includes a fifth branch connected to the main air path, the fifth branch being connected to an external dust collector to remove fumes generated during processing by the external processing device.

[0016] Optionally, a first filter element and a second filter element are provided on the main line of the third gas path. The first filter element is used to filter particles in the third gas, and the second filter element is used to filter pipe impurities in the third gas path.

[0017] Optionally, a cold-drying adsorption component is provided on the main line of the third gas path to remove water vapor and oil molecules in the third gas.

[0018] Optionally, a main pressure detection device and a high-pressure solenoid valve are provided on the main trunk of the first, second, or third air passage. The main pressure detection device is used to detect the air pressure in the main trunk of the first, second, or third air passage, and the high-pressure solenoid valve is used to release the air pressure in the main trunk of the first, second, or third air passage in order to detect the internal pipes.

[0019] This application also provides a laser processing device, including the gas path system described above.

[0020] The beneficial effects of the gas path system and laser processing equipment provided in this application embodiment are as follows: The gas path system of this application embodiment sets up three independent gas paths, which are used to introduce different auxiliary gases (such as air, nitrogen and oxygen), and can flexibly switch or mix single or multiple gases through the proportion adjustment component, which significantly broadens the range of processing materials and the adaptability of cutting processes of the laser cutting machine, enabling it to meet the processing needs of different materials (such as metals and non-metals) and different cutting thicknesses.

[0021] In addition, the second branch of the third gas path is directly connected to the external processing device, which is used to cool the processing device with a third gas (such as air). This effectively solves the problem of heat generated during processing, extends the service life of the processing device, and improves cutting accuracy and processing quality.

[0022] The laser processing equipment of this application embodiment includes the above-described gas path system, and therefore has the beneficial effects brought about by the gas path system, which will not be repeated here. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the gas path system provided in the embodiments of this application.

[0025] The following are the labeling elements in the figure:

[0026] 1. First airway;

[0027] 2. Second air passage;

[0028] 3. Third air path; 31. Main path; 311. First filter element; 312. Second filter element; 313. Cold drying adsorption assembly; 32. First branch path; 33. Second branch path; 331. Second pressure regulating element; 332. Second on / off control element; 34. Third branch path; 35. Fourth branch path; 351. Fourth pressure regulating element; 352. Fourth pressure detection element; 353. Lubrication transmission element; 36. Fifth branch path;

[0029] 4. Main air passage;

[0030] 5. Proportional adjustment component;

[0031] 6. Main pressure detection component;

[0032] 7. High-pressure solenoid valve. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0037] Please see Figure 1 The gas path system provided in the embodiments of this application will now be described. The gas path system provided in the embodiments of this application includes a first gas path 1, a second gas path 2, a third gas path 3, a main gas path 4, and a proportional adjustment component 5. The first gas path 1 is used to introduce a first gas. The second gas path 2 is used to introduce a second gas. The third gas path 3 is used to introduce a third gas, and the third gas path 3 includes a main path 31, a first branch path 32, and a second branch path 33. The main path 31 is connected to an external gas storage device, and the main path 31 connects to the first branch path 32 and the second branch path 33. The second branch path 33 is connected to an external processing device to cool the external processing device through the third gas. The main gas path 4 is connected to the external processing device, and the main gas path 4 inputs a single gas or a mixture of the first gas, the second gas, and the third gas into the external processing device for processing. The proportional adjustment component 5 is connected to the first branch 32 of the first gas path 1, the second gas path 2, the third gas path 3, and the main gas path 4. The proportional adjustment component 5 is used to input a single gas or a mixture of the first gas, the second gas, and the third gas into the main gas path 4.

[0038] The external processing device in this application embodiment can specifically be a laser cutting device.

[0039] The first gas passage 11 is used to introduce a first gas, such as oxygen. The inlet end of the first gas passage 11 is connected to an external oxygen storage device, and the outlet end is connected to a proportional adjustment component 55. In this embodiment, a first gas flow meter 11 and a first gas pressure gauge 12 may be installed on the first gas passage 11 to monitor the oxygen flow rate and pressure in real time, so as to accurately control the amount of oxygen input.

[0040] The second gas passage 22 is used to introduce a second gas, such as nitrogen. The inlet of the second gas passage 22 is connected to an external nitrogen storage device, and the outlet is connected to a proportional control component 55. Similarly, a second gas flow meter 21 and a second gas pressure gauge 22 can be installed on the second gas passage 22 to monitor the flow rate and pressure of the nitrogen. Specifically, since the initial pressure of liquid nitrogen is 20-30 kg, the components downstream of the gas passage cannot withstand excessive pressure. Therefore, a pressure reducing valve is added at the very beginning of the second gas passage 2 to reduce the pressure to the adjustable range of the downstream components.

[0041] The third gas path 33 is used to introduce a third gas, such as air. The third gas path 33 includes a main path 31, a first branch path 32, and a second branch path 33. The inlet end of the main path 31 is connected to an external air compressor, and the outlet end of the main path 31 is divided into the first branch path 32 and the second branch path 33. The outlet end of the first branch path 32 is connected to a proportional adjustment component 55, and the outlet end of the second branch path 33 is connected to an external processing device (such as a laser cutting device) for cooling the external processing device (such as the ceramic ring of the laser cutting device) with the third gas (air). A third gas flow meter 33 and a third gas pressure gauge 34 can be installed on the main path 31 to monitor the air flow and pressure.

[0042] From the perspective of gas circuit safety and convenient maintenance, a two-way ball valve can be installed at the gas source end, which can be closed to replace the maintenance pipe at the gas source.

[0043] The main gas path 44 is connected to an external processing device and is used to input a single gas or a mixture of the first, second, and third gases into the external processing device for processing. The inlet end of the main gas path 44 is connected to the proportional control component 55, and the outlet end is connected to the external processing device. A main gas flow meter 41 and a main gas pressure gauge 42 can be installed on the main gas path 44 to monitor the gas flow rate and pressure input to the external processing device.

[0044] The proportional control component 55 is connected to the first branch 32 of the first gas path 11, the second gas path 22, the third gas path 33, and the main gas path 44, and is used to input a single gas or a mixture of the first gas, the second gas, and the third gas into the main gas path 44. The proportional control component 55 may include multiple gas proportional control valves. By adjusting the opening degree of these proportional control valves, the input ratio of each gas can be precisely controlled, thereby realizing flexible switching and input of a single gas or a mixture of gases.

[0045] Specifically, the proportional control assembly 5 may include a high-pressure electrically controlled proportional valve, a gas path block, and three check valves. The first gas path 1, the second gas path 2, and the third gas path 3 are connected to the gas path block to form a single gas path. The gas path block is connected to the main gas path 4. The high-pressure electrically controlled proportional valve is located on the main gas path 4, and the check valves are located at the connection points of the first gas path 1 and the gas path block, the second gas path 2 and the gas path block, or the third gas path 3 and the gas path block.

[0046] Traditional manual pressure regulation is difficult to achieve precise control. High-pressure electronically controlled proportional valves can achieve automatic adjustment and control of the gas circuit system. They can automatically adjust the valve size and regulate the gas flow and speed according to requirements. At the same time, it is a closed-loop control system, and the feedback signal is compared with the set value in real time to ensure a constant pressure value.

[0047] Before the main gas path 4 merges into a single gas path, each of the first gas path 1, the second gas path 2, and the third gas path 3 can be equipped with a one-way valve to prevent the different gases from crossing each other and affecting the gas purity and cutting quality.

[0048] This application embodiment sets up three independent gas paths for introducing different auxiliary gases (such as air, nitrogen, and oxygen), and can flexibly switch or mix single or multiple gases through the proportional adjustment component 5, which significantly broadens the range of processed materials and the adaptability of cutting processes of the laser cutting machine, enabling it to meet the processing needs of different materials (such as metals and non-metals) and different cutting thicknesses.

[0049] In addition, the second branch 33 of the third gas path 3 is directly connected to the external processing device and is used to cool the processing device with a third gas (such as nitrogen or air), which effectively solves the problem of heat generated during processing, extends the service life of the processing device, and improves cutting accuracy and processing quality.

[0050] Compared to traditional single-gas-path systems, the embodiments of this application allow for flexible selection or mixing of different gases according to actual processing needs, avoiding unnecessary gas waste and reducing processing costs. Furthermore, by rationally switching gases, dependence on high-cost gases (such as nitrogen) can be reduced, further saving costs.

[0051] By precisely controlling the gas input ratio through the proportional adjustment component 5, the cutting parameters can be optimized according to different materials and process requirements, achieving a more efficient and precise cutting effect, while reducing burrs and heat-affected zones and improving processing quality.

[0052] The gas path system has a reasonable structural design, with each gas path working independently and collaboratively. It is easy to integrate with existing laser cutting equipment, and is also easy to install, debug and maintain, reducing the cost of using and maintaining the equipment.

[0053] The second branch circuit 33 is provided with a second pressure regulating component 331 and a second on / off control component 332. The second pressure regulating component 331 is used to regulate the air pressure in the second branch circuit 33, and the second on / off control component 332 is used to control the air flow in the second branch circuit 33.

[0054] The second pressure regulating component 331 can be a pressure reducing valve, and the second on / off control component 332 can be a fluid control valve.

[0055] The second branch 33 is a branch line that branches off from the main line 31 of the third gas line 3. Since the required pressure is different, it is necessary to adjust the appropriate gas pressure through different pressure reducing valves and control the on and off of the gas by fluid control valves respectively.

[0056] The third air passage 3 also includes a third branch passage 34 connected to the main passage 31. The third branch passage 34 is connected to an external processing device to assist the external processing device in performing processing steps.

[0057] The third branch 34 is connected to an external processing device (such as the side blow hole of a laser cutting device) to provide side blow gas to the laser cutting device to remove fine chips generated during processing by the external processing device and improve processing quality.

[0058] The third air passage 3 can adopt the same structure as the second air passage 2. The third air passage 3 is equipped with a third pressure regulating component and a third on / off control component.

[0059] The third air passage 3 also includes a fourth branch passage 35 connected to the main passage 31. The fourth branch passage 35 is connected to external solenoid valves and cylinders to control the switching of external solenoid valves and cylinders.

[0060] External solenoid valves and cylinders can control the air dampers on the laser cutting machine tool. Multiple cylinders can be controlled by solenoid valves to open the air dampers when ventilation is needed and close them when ventilation is not needed. At the same time, the machine tool can be divided into multiple zones, with one air damper in each zone, which improves the efficiency of dust removal from the machine tool.

[0061] External solenoid valves and cylinders can also control the clamping cylinders on the worktable. The sheet metal is placed on the worktable for cutting. Ensuring the stability of the worktable is also to ensure the cutting quality of the sheet metal. If the worktable shakes, it will affect the cutting accuracy of the sheet metal. The clamping cylinders clamp the worktable on both sides to prevent the worktable from shaking during cutting.

[0062] The fourth branch line 35 is equipped with a fourth pressure regulating component 351, a fourth pressure detection component 352, and a lubrication transmission component 353. The fourth pressure regulating component 351 is used to regulate the air pressure in the fourth branch line 35, the fourth pressure detection component 352 is used to detect the pressure in the fourth branch line 35, and the lubrication transmission component 353 is used to deliver lubricating fluid into the fourth branch line 35.

[0063] The air pressure in the fourth branch 35 must not exceed the range of components such as the cylinder, otherwise it will cause damage to the components. Therefore, a fourth pressure regulating component 351 and a fourth pressure detection component 352 for real-time monitoring of the pressure range are required. Transmitting lubricating fluid to the fourth branch 35 through the lubrication transmission component 353 can extend the service life of the cylinder. Specifically, the lubrication transmission component 353 can be a delivery pipe connected to the fourth branch 35 and an external oil supply device.

[0064] The third air passage 3 also includes a fifth branch passage 36 connected to the main passage 31. The fifth branch passage 36 is connected to an external dust collector to remove the smoke and dust generated during processing by the external processing device.

[0065] The external dust collector is connected to the damper on the laser cutting machine to remove the fumes generated during processing when the damper is open. Because the dust drawn in by the external dust collector will clog the filter after continuous operation, the filter needs to be cleaned periodically. The fifth branch 36 is connected to the external dust collector to provide backflushing air in the opposite direction of suction. This backflushing air provides a sudden and powerful air pressure impact, blowing away the dust from the filter and quickly restoring its filtering capacity.

[0066] The main passage 31 of the third gas passage 3 is equipped with a first filter element 311 and a second filter element 312. The first filter element 311 is used to filter particles in the third gas, and the second filter element 312 is used to filter pipeline impurities in the third gas passage 3.

[0067] When the third gas in the third air passage 3 is high-pressure air, which is generated by an air compressor, the air will contain fine particles. These impurities will affect the processing effect of the external processing device, so the high-pressure air needs to be filtered. To improve the filtration effect, two first filter elements 311 can be installed.

[0068] In addition, there may be particulate impurities in the pipeline, and the second filter element 312 can filter the pipeline impurities in the third air passage 3.

[0069] The first air passage 1 and the second air passage 2 can also be equipped with a second filter element 312.

[0070] A cold-drying adsorption component 313 is installed on the main road 31 of the third gas path 3 to remove water vapor and oil molecules in the third gas.

[0071] The high-pressure air generated by the air compressor also contains a large amount of water vapor and a small amount of oil particles, which can affect the processing effect. The refrigerated dry adsorption component 313 includes a refrigerated dryer and an adsorption dryer, which can remove water vapor and oil molecules from the gas, thereby improving the processing effect.

[0072] Main pressure detection devices 6 and high-pressure solenoid valves 7 are installed on the main trunk lines 31 of the first air passage 1, the second air passage 2, and the third air passage 3. The main pressure detection devices 6 are used to detect the air pressure in the main trunk lines 31 of the first air passage 1, the second air passage 2, or the third air passage 3. The high-pressure solenoid valves 7 are used to release the air pressure in the main trunk lines 31 of the first air passage 1, the second air passage 2, or the third air passage 3 in order to detect the internal pipes.

[0073] To ensure precise transport and delivery of high-pressure gas, high-pressure main pressure detection devices 6 are installed at the beginning of each of the three main gas paths 4. These devices can monitor the pressure range in the gas path in a timely manner. If the pressure exceeds the preset range during the cutting process, the system can quickly take corresponding measures, such as closing valves and issuing alarms to remind operators to perform maintenance. Specifically, the pressure detection devices can be main pressure transmitters.

[0074] For each of the three gas lines, a high-pressure solenoid valve 7 can be installed at both ends of the section that frequently requires maintenance. During maintenance, one high-pressure solenoid valve 7 can be closed while the other high-pressure solenoid valve 7 is opened to release the pressure in the pipeline. Maintenance can then be carried out without pressure in the pipeline, thus improving the safety of maintenance work.

[0075] This application also provides a laser processing device, including the gas path system in any of the above embodiments.

[0076] The laser processing equipment of this application embodiment includes the gas path system in any of the above embodiments, and therefore has the beneficial effects brought by the gas path system in any of the above embodiments, which will not be repeated here.

[0077] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An airpath system, characterized by, The system comprises: a first gas path for inputting a first gas; a second gas path for inputting a second gas; a third gas path for inputting a third gas, comprising a main path, a first branch path and a second branch path, the main path being connected with an external gas storage device, the main path connecting the first branch path and the second branch path, the second branch path being connected with an external processing device to cool the external processing device by the third gas; a main gas path connected with the external processing device to input a single gas or mixed gas among the first gas, the second gas and the third gas into the external processing device to perform processing; a proportional adjustment assembly in communication with the first gas path, the second gas path, the first branch path of the third gas path and the main gas path, for inputting a single gas or mixed gas among the first gas, the second gas and the third gas into the main gas path.

2. The airpath system of claim 1, wherein, The second branch path is provided with a second pressure regulating member and a second on-off control member, the second pressure regulating member being used to regulate the gas pressure in the second branch path, and the second on-off control member being used to control the on-off of the gas flow in the second branch path.

3. The airpath system of claim 1, wherein, The third gas path further comprises a third branch path connected with the main path, the third branch path being connected with the external processing device to assist the external processing device in performing a processing procedure.

4. The air path system according to claim 1, characterized by, The third gas path further comprises a fourth branch path connected with the main path, the fourth branch path being connected with an external electromagnetic valve and a gas cylinder to control the opening and closing of the external electromagnetic valve and the gas cylinder.

5. The air path system according to claim 4, characterized by, The fourth branch path is provided with a fourth pressure regulating member, a fourth pressure detecting member and a lubricating delivery member, the fourth pressure regulating member being used to regulate the gas pressure in the fourth branch path, the fourth pressure detecting member being used to detect the pressure in the fourth branch path, and the lubricating delivery member being used to deliver lubricating liquid into the fourth branch path.

6. The air path system according to claim 1, characterized by, The third gas path further comprises a fifth branch path connected with the main path, the fifth branch path being connected with an external dust remover to eliminate smoke dust generated by the external processing device.

7. The air path system according to claim 1, characterized by, The main path of the third gas path is provided with a first filter member and a second filter member, the first filter member being used to filter particles in the third gas, and the second filter member being used to filter pipeline impurities in the third gas path.

8. The air path system according to claim 1, characterized by, The main path of the third gas path is provided with a cold-dry adsorption assembly to remove water vapor and oil molecules in the third gas.

9. The air path system according to claim 1, characterized by, The main path of the third gas path is provided with a main pressure detecting member and a high-voltage electromagnetic valve, the main pressure detecting member being used to detect the gas pressure in the main path of the first gas path, the second gas path or the third gas path, and the high-voltage electromagnetic valve being used to release the gas pressure in the main path of the first gas path, the second gas path or the third gas path to detect the internal pipeline.

10. A laser processing apparatus characterized by comprising: The system comprises the gas path system according to any one of claims 1-9. The system comprises the gas path system according to any one of claims 1-9.

Images