A laser cutting device for engine component machining
By introducing a mixed airflow and a lateral suction structure into the laser cutting equipment, the problems of smoke diffusion and workpiece vibration were solved, enabling high-precision cutting of engine heat shields and improving cutting quality and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FENGCHENG GRT AUTO RES CO LTD
- Filing Date
- 2026-06-03
- Publication Date
- 2026-06-30
AI Technical Summary
When processing engine heat shields, existing laser cutting equipment produces a single-direction protective gas flow, which leads to the disordered diffusion of smoke and high-temperature particles, affecting cutting accuracy and finished product quality. Furthermore, thin-walled workpieces are prone to thermal deformation or vibration.
The system employs a mixed airflow guiding structure and a side suction hood. By setting a gap between the exhaust pipe and the connecting pipe at the laser cutting head, a mixed airflow is formed. The airflow direction is controlled by the airflow guide hood. Combined with the side suction hood and the support adsorption unit, a stable airflow channel is established to guide the exhaust of fumes and hot gases, while supporting the bottom of the workpiece to improve stability.
It effectively avoids smoke retention, improves cutting quality and precision, reduces workpiece vibration, improves the working environment, and ensures the stability of the cutting process and the quality of the finished product.
Smart Images
Figure CN122299159A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of laser cutting equipment technology, and in particular to a laser cutting equipment for processing engine parts. Background Technology
[0002] Engine heat shields are typically installed on the exhaust side of the engine, near the turbine, or around high-temperature sensitive parts to reduce the impact of heat radiated outward from high-temperature components on surrounding parts. These heat shields are mostly made of metal sheets such as stainless steel plates and heat-resistant alloy thin plates by stamping. The finished products usually have structural features such as embossing, flanging, local bulging, holes and grooves, and irregular edges. Overall, they are typical thin-walled metal forming parts.
[0003] During the manufacturing process, engine heat shields typically require laser cutting, hole drilling, or window opening. Since the heat shield itself is a thin sheet metal stamping part, the cutting process is affected not only by the laser heat input, but also by factors such as protective gas injection, flue gas diffusion, molten particle splashing, and local vibration of the workpiece. As a result, problems such as high temperature rise in the vicinity of the cut, flue gas backflow, molten slag adhesion, and insufficient cutting stability are likely to occur.
[0004] In existing equipment, conventional laser cutting heads mainly use a single protective gas to assist cutting. The airflow is mostly concentrated below the nozzle. Although this can help remove molten material to some extent, for thin-walled parts such as engine heat shields with embossing, flanging, and complex curved surfaces, the airflow direction after the protective gas is ejected is relatively unidirectional. The fumes and high-temperature particles generated during the cutting process tend to diffuse irregularly near the cut, or even linger on or below the workpiece surface. The workpiece is prone to thermal deformation or vibration due to airflow disturbance during laser cutting, which affects the cutting accuracy and finished product quality.
[0005] Therefore, there is an urgent need for a laser cutting device that can effectively organize the airflow and guide the exhaust of fumes during the laser cutting process. Summary of the Invention
[0006] The purpose of this invention is to provide a laser cutting device for processing engine parts, so as to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a laser cutting equipment for processing engine parts, comprising a frame, cutting stations and a laser cutting execution mechanism, wherein two cutting stations are provided, both of which can be slidably installed on the frame, and the laser cutting execution mechanism is disposed between the two cutting stations for laser cutting the engine heat shield on the corresponding station, and a heat shield clamping assembly is provided above each cutting station; The heat insulation cover clamping assembly includes a clamping seat fixedly installed above the cutting station, a support seat installed inside the clamping seat, and two lateral suction covers installed on both sides of the upper surface of the clamping seat. The laser cutting actuator includes a six-axis robotic arm, a laser cutting head mounted on the moving end of the six-axis robotic arm, and a nozzle airflow guiding structure. The nozzle airflow guiding structure includes a protective gas guiding shroud mounted on the bottom of the outer surface of the laser cutting head, multiple air outlet pipes mounted on the bottom of the protective gas guiding shroud, and an airflow guide shroud mounted on the bottom of the outer surface of the laser cutting head. Multiple connecting pipes are fixedly provided at the top of the airflow guide shroud. The multiple connecting pipes are respectively sleeved on the bottom of the multiple air outlet pipes, and there are gaps between the multiple connecting pipes and the multiple air outlet pipes to allow the protective gas to mix with the outside air to form a mixed airflow. The mixed airflow is ejected through the nozzle and, under the guidance of the airflow guide shroud, forms a directional flow field in the direction of the lateral suction shroud to guide the exhaust of the smoke in the cutting area and cool the area adjacent to the cut.
[0008] Preferably, the upper surface of the clamping seat is provided with a plurality of clamping arms, which are distributed at intervals along the edge of the engine heat shield, and each clamping arm is provided with a pressure foot at its end. The pressure feet are used to press the non-cut edge area of the engine heat shield. The outer side of the clamping seat is provided with a plurality of clamping cylinders for driving the clamping arms to flip.
[0009] Preferably, the upper surface of the support base is fixed with a plurality of support adsorption units that are spaced apart along the bottom of the engine heat shield. Each support adsorption unit includes a support rod and an adsorption head disposed on the top of the support rod. The adsorption head is used to adhere to the bottom surface of the engine heat shield and form local adsorption to improve stability during the cutting process.
[0010] Preferably, a finished product ejection cylinder is provided below the support base, and the finished product ejection cylinder is fixedly located below the clamping base. The finished product ejection cylinder is used to lift the cut engine heat shield after laser cutting, so as to separate the finished product from the waste.
[0011] Preferably, the lateral suction shroud is located on the side edge of the engine heat shield, and a lateral suction port is fixedly installed on the outer side of the lateral suction shroud. The lateral suction shroud and the lateral suction port are used to extract the flue gas, hot gas and molten particles carried by the mixed airflow away from the cutting area.
[0012] Preferably, the side of the lateral suction shroud near the engine heat shield is provided with an airflow shaping structure. The airflow shaping structure includes a guide groove and a rib. The guide groove is located on the upper surface of the clamping seat, and the rib is located at the opening of the guide groove. The rib is used to raise the edge area of the engine heat shield relative to the upper surface of the clamping seat, so that an airflow channel is formed between the bottom surface of the engine heat shield and the clamping seat. The guide groove is connected to the airflow channel so that the airflow on the upper and lower surfaces of the engine heat shield can enter the lateral suction shroud respectively.
[0013] Preferably, the airflow guide shroud is arranged around the periphery of the laser cutting head nozzle, and the plurality of connecting pipes and air outlet pipes are distributed along the circumference of the laser cutting head, so that the mixed airflow output from the plurality of connecting pipes forms a guide air curtain biased towards the lateral suction shroud below the laser cutting head.
[0014] Preferably, the two cutting stations are slidably mounted on the frame via slide rail assemblies, and the two cutting stations can reciprocate along the length of the frame, so that when one cutting station is located below the laser cutting actuator for cutting, the other cutting station is located on the outside for loading or unloading.
[0015] Preferably, the adsorption head is a omnidirectional floating structure to adapt to the curved shape of the bottom of the engine heat shield.
[0016] Preferably, the bottom end of the airflow guide hood is provided as an inclined structure, which is used to guide the mixed airflow in direction, causing it to deflect towards the lateral suction hood.
[0017] The technical effects and advantages of this invention are as follows: 1. This invention sets up a gas mixing structure at the laser cutting head, consisting of the gap between the gas outlet pipe and the connecting pipe, and sets up lateral suction hoods on both sides of the clamping seat. This allows the protective gas to introduce outside air during the ejection process to form a mixed airflow. The direction of the airflow is controlled by the airflow guide hood, so that the mixed airflow is no longer in a disordered diffusion state, but forms a directional flow path towards the lateral suction hood. This establishes a stable airflow guiding channel in the cutting area, so that the smoke, hot gas and molten particles generated during the cutting process can be quickly extracted along the predetermined path, effectively avoiding the smoke from lingering or backflowing near the cut, thereby improving the cutting quality and improving the working environment. 2. This invention provides multi-point support to the bottom of the heat shield through a support adsorption unit, enabling the thin-walled structure to remain stable during laser cutting. The support adsorption unit can support the engine heat shield from bottom to top, while the airflow guiding structure on the outside of the laser cutting head can apply air pressure to the engine heat shield from top to bottom, so as to effectively position the engine heat shield, thereby reducing vibration caused by airflow impact and thermal deformation and improving cutting accuracy. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0019] Figure 2 This is a schematic diagram of the internal structure of the frame of the present invention.
[0020] Figure 3 This is a schematic diagram of the cutting station structure of the present invention.
[0021] Figure 4 This is a schematic diagram of the heat insulation cover clamping assembly of the present invention.
[0022] Figure 5 This is a schematic diagram of the support structure of the present invention. Figure 1 .
[0023] Figure 6 This is a schematic diagram of the support structure of the present invention. Figure 2 .
[0024] Figure 7 This is a schematic diagram of the laser cutting actuator of the present invention.
[0025] Figure 8 This is a schematic diagram of the laser cutting head structure of the present invention.
[0026] Figure 9 This is a schematic diagram of the airflow guide hood structure of the present invention.
[0027] In the diagram: 1. Frame; 2. Cutting station; 3. Laser cutting actuator; 30. Six-axis robotic arm; 31. Laser cutting head; 32. Protective gas guide hood; 321. Gas outlet pipe; 322. Airflow guide hood; 323. Connecting pipe; 4. Heat insulation cover clamping assembly; 41. Clamping seat; 411. Pressing arm; 412. Pressing foot; 413. Pressing cylinder; 42. Support seat; 4211. Support rod; 4212. Adsorption head; 423. Finished product ejection cylinder; 43. Side suction hood; 432. Side suction port; 433. Guide groove; 4331. Rib. Detailed Implementation
[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0029] like Figures 1 to 9As shown, the laser cutting equipment for processing engine parts provided by the present invention is essentially a laser cutting equipment that can effectively organize the airflow during the laser cutting process, guide the exhaust of flue gas, and take into account the stability of the workpiece.
[0030] In terms of specific structural installation, the structural body can be constructed according to the inventive concept of this embodiment. In this embodiment, no special limitations are imposed.
[0031] In this embodiment, a laser cutting device for processing engine parts includes a frame 1, which serves as the load-bearing foundation for the entire machine. Preferably, a welded frame structure or a box-type load-bearing structure is adopted to ensure sufficient strength and rigidity. Two cutting stations 2 are provided above the frame 1. The two cutting stations 2 are slidably mounted above the frame 1 via a slide rail assembly. The two cutting stations 2 are arranged along the length of the frame 1 and can reciprocate above the frame 1.
[0032] The laser cutting actuator 3 is positioned between two cutting stations 2, forming a central cutting structure. When one of the cutting stations 2 moves to the bottom of the laser cutting actuator 3, laser cutting can be performed. The other cutting station 2 can be located on the outside for manual or mechanical loading, unloading, and auxiliary sorting. After the current station has finished cutting, the two cutting stations 2 exchange positions to form an alternating working mode, thereby improving the equipment's processing cycle time.
[0033] The laser cutting actuator 3 includes a six-axis robotic arm 30, a laser cutting head 31 mounted on the moving end of the six-axis robotic arm 30, and a nozzle airflow guiding structure. The six-axis robotic arm 30 is mounted in the middle of the frame 1 and can drive the laser cutting head 31 to perform multi-degree-of-freedom movements in space to adapt to the complex shape of the engine heat shield and the cutting paths of different areas.
[0034] The laser cutting head 31 is a fiber laser cutting head, which has a laser output channel and a protective gas channel inside. When working, the laser beam acts downward from the nozzle on the area to be cut of the engine heat shield. In order to improve the flow field control capability of the cutting area, an airflow guiding structure is provided at the bottom of the laser cutting head 31.
[0035] The airflow guiding structure includes a protective gas guiding cover 32, multiple air outlet pipes 321, an airflow guide cover 322, and multiple connecting pipes 323. The protective gas guiding cover 32 is installed on the bottom of the outer surface of the laser cutting head 31 and is used to receive the protective gas from the internal gas path of the laser cutting head 31. The multiple air outlet pipes 321 are installed on the bottom of the protective gas guiding cover 32 and are preferably evenly distributed along the circumference of the nozzle.
[0036] An airflow guide shroud 322 is mounted on the bottom of the outer surface of the laser cutting head 31, and its entire structure surrounds the nozzle. Multiple connecting pipes 323 are fixedly mounted on the top of the airflow guide shroud 322. Each connecting pipe 323 is sleeved onto the bottom end of a corresponding air outlet pipe 321, with a gap between the connecting pipe 323 and the air outlet pipe 321. When the protective gas flows out of the air outlet pipe 321, a Venturi effect is formed at the sleeve gap between the air outlet pipe 321 and the connecting pipe 323, thereby introducing outside air and mixing it with the protective gas to form a mixed airflow. The mixed airflow is ejected downward through the connecting pipe 323 and the nozzle area, and under the constraint and guidance of the airflow guide hood 322, it forms a directional flow field in the direction of the lateral suction hood 43. The bottom end of the airflow guide hood 322 is preferably set as an inclined structure. This inclined structure is equivalent to an airflow guide surface, which can guide and deflect the mixed airflow that was originally ejected downward to the direction of the lateral suction hood 43, thereby forming a stable flue gas discharge path in the cut area. While protecting and assisting in cooling the cut area, the mixed airflow also pushes the flue gas and high-temperature particles in the direction of the lateral suction hood 43, reducing the accumulation of flue gas near the cut.
[0037] Each cutting station 2 is equipped with a heat shield clamping assembly 4. The heat shield clamping assembly 4 includes a clamping seat 41, a support seat 42 and two side suction covers 43. The clamping seat 41 is fixedly installed above the corresponding cutting station 2 and serves as the main placement and clamping platform for the engine heat shield. The upper surface of the clamping seat 41 is provided with multiple clamping arms 411, which are distributed at intervals along the edge of the engine heat shield. Each clamping arm 411 is provided with a pressure foot 412 at its end. The pressure foot 412 is used to press the non-cut edge area of the engine heat shield. The outer side of the clamping seat 41 is provided with multiple clamping cylinders 413, which are used to drive the corresponding clamping arm 411 to flip, thereby pressing or releasing the edge of the workpiece.
[0038] The presser foot 412 can be made of heat-resistant material, or a heat-resistant cap can be added to its bottom to reduce the adverse effects caused by heat conduction to the clamping area during the cutting process.
[0039] The support base 42 is installed inside the clamping base 41 to provide support for the bottom of the engine heat shield. Multiple support and adsorption units are fixedly arranged on the upper surface of the support base 42, spaced apart along the bottom of the engine heat shield. Each support and adsorption unit includes a support rod 4211 and an adsorption head 4212 located at the top of the support rod 4211. The support rod 4211 is used to position the adsorption head 4212 at a corresponding position on the bottom surface of the engine heat shield. The adsorption head 4212 is used to adhere to the bottom surface of the engine heat shield and form local adsorption to improve stability during the cutting process. Since the bottom of the engine heat shield usually has embossed, bulging, or flanged transition structures, the adsorption head 4212 adopts a universal floating structure to adapt to the curved shape of the workpiece bottom, ensuring that multiple adsorption heads 4212 can still effectively adhere in different curvature areas. During the cutting process, multiple adsorption heads 4212 provide multi-point support and local adsorption for the bottom of the engine heat shield, making the thin-walled heat shield less prone to significant vibration when subjected to laser heat input and airflow disturbances, thus helping to improve the quality of the cut.
[0040] Below the support base 42 is a finished product ejection cylinder 423, which is fixedly located below the clamping base 41. After cutting, the finished product ejection cylinder 423 moves upward to lift the cut engine heat shield, separating the finished product from the waste material for easy removal later.
[0041] Two lateral suction hoods 43 are respectively disposed on the side edges of the engine heat shield. Lateral suction ports 432 are fixedly installed on the outer side of each lateral suction hood 43. The lateral suction ports 432 are connected to a negative pressure suction system to extract the flue gas, hot gas, and molten particles carried by the mixed airflow from the cutting area. An airflow shaping structure is provided on the side of the lateral suction hood 43 closest to the engine heat shield. The airflow shaping structure includes a guide groove 433 and a rib 4331. The guide groove 433 is disposed on the upper surface of the clamping seat 41, and the rib 4331 is disposed on... At the opening of the guide groove 433, the rib 4331 raises the edge area of the engine heat shield relative to the upper surface of the clamping seat 41, thereby forming an airflow channel between the bottom surface of the engine heat shield and the clamping seat 41. The guide groove 433 is connected to the airflow channel. Therefore, under the synergistic effect of the nozzle airflow guiding structure and the side suction hood 43, the flue gas on the upper surface of the engine heat shield can be directly introduced into the side suction hood 43, and the airflow near the bottom surface of the engine heat shield can enter the side suction hood 43 through the guide groove 433 and the airflow channel.
[0042] When using a laser cutting device for processing engine parts according to the present invention, the engine heat shield to be processed is first placed on the clamping seat 41 corresponding to one of the cutting stations 2. Multiple pressing cylinders 413 drive the pressing arm 411 to rotate, so that the pressing foot 412 presses the edge of the workpiece to achieve edge positioning. At the same time, multiple adsorption heads 4212 are attached to the bottom of the engine heat shield to form local adsorption, thereby completing the stable clamping of the workpiece. Subsequently, the six-axis robotic arm 30 drives the laser cutting head 31 to move above the workpiece to be cut area. The laser cutting head 31 outputs a laser beam to perform edge cutting, hole opening or window opening processing. At the same time, the protective gas is distributed by the protective gas guide shroud 32 and enters multiple gas outlet pipes 321. The protective gas introduces outside air in the gap between the gas outlet pipe 321 and the connecting pipe 323 to form a mixed airflow. After being acted upon by the airflow guide shroud 322, the mixed airflow is deflected towards the lateral suction shroud 43. During the laser cutting process, the protective gas is first distributed by the protective gas guide shroud 32 and then enters multiple gas outlet pipes 321. When the protective gas flows in the gap area formed between the gas outlet pipes 321 and the connecting pipes 323, it introduces outside air, thereby forming a mixed airflow. The mixed airflow continues to be output downward through the connecting pipes 323 and is deflected in the direction of the lateral suction shroud 43 under the guidance of the airflow guide shroud 322, so as to form a directional flow field in the area near the cut, which forms a continuous purging and cooling effect on the cut area, and at the same time pushes the flue gas, hot gas and molten particles generated near the cut to flow towards the lateral suction shroud 43. As the mixed airflow deflects towards the lateral suction hood 43, the lateral suction port 432 located on the side of the engine heat shield edge continuously suctions, so that the flue gas, hot gas and molten particles are promptly removed from the cutting area. At the same time, since the clamping seat 41 is provided with the flow guide groove 433 and the rib 4331, the rib 4331 raises the edge area of the engine heat shield, so that the bottom surface of the engine heat shield and the clamping seat 41 form an airflow channel, and the airflow channel is connected to the flow guide groove 433. Therefore, the airflow near the upper surface and bottom surface of the engine heat shield can be introduced into the lateral suction hood 43, thereby forming a vertically connected flue gas exhaust path, improving the flue gas exhaust efficiency in the cutting area. Meanwhile, multiple adsorption heads 4212 continuously support and adsorb the bottom of the engine heat shield, so that the workpiece remains stable during the laser cutting process, reducing the vibration caused by airflow impact, heat input and local stress release. After one cutting station 2 finishes processing, the finished product ejection cylinder 423 lifts the finished product, separating the finished product from the waste. At the same time, the other cutting station 2 can perform workpiece clamping or removal operations. Then the two cutting stations 2 exchange positions and continue the next cycle of processing.
[0043] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 device for processing engine parts, comprising a frame (1), a cutting station (2), and a laser cutting actuator (3), characterized in that: There are two cutting stations (2), and both cutting stations (2) can be slidably installed on the frame (1). The laser cutting actuator (3) is set between the two cutting stations (2) and is used to laser cut the engine heat shield on the corresponding station. Each cutting station (2) is equipped with a heat shield clamping assembly (4). The heat insulation cover clamping assembly (4) includes a clamping seat (41) fixedly installed above the cutting station (2), a support seat (42) installed inside the clamping seat (41), and two lateral suction covers (43) installed on both sides of the upper surface of the clamping seat (41). The laser cutting actuator (3) includes a six-axis robotic arm (30), a laser cutting head (31) mounted on the moving end of the six-axis robotic arm (30), and a nozzle airflow guiding structure. The nozzle airflow guiding structure includes a protective gas guide shroud (32) mounted on the bottom of the outer surface of the laser cutting head (31), multiple air outlet pipes (321) mounted on the bottom of the protective gas guide shroud (32), and an airflow guide shroud (322) mounted on the bottom of the outer surface of the laser cutting head (31). The top of the airflow guide shroud (322) Multiple connecting pipes (323) are fixedly provided at the end. The multiple connecting pipes (323) are respectively sleeved on the bottom end of multiple air outlet pipes (321), and there is a gap between the multiple connecting pipes (323) and the multiple air outlet pipes (321) so that the protective gas mixes with the outside air to form a mixed airflow. The mixed airflow is sprayed out through the nozzle and forms a directional flow field in the direction of the lateral suction hood (43) under the guidance of the airflow guide hood (322) so as to guide the smoke in the cutting area to be discharged and cool the area adjacent to the cut.
2. The laser cutting equipment for processing engine parts according to claim 1, characterized in that: The upper surface of the clamping seat (41) is provided with a plurality of clamping arms (411), which are distributed at intervals along the edge of the engine heat shield, and each clamping arm (411) is provided with a pressure foot (412) at its end. The pressure foot (412) is used to press the non-cut edge area of the engine heat shield. The outer side of the clamping seat (41) is provided with a plurality of clamping cylinders (413) for driving the clamping arms (411) to flip.
3. The laser cutting equipment for processing engine parts according to claim 1, characterized in that: The upper surface of the support base (42) is fixed with a plurality of support adsorption units distributed at intervals along the bottom of the engine heat shield. Each support adsorption unit includes a support rod (4211) and an adsorption head (4212) set on the top of the support rod (4211). The adsorption head (4212) is used to adhere to the bottom surface of the engine heat shield and form local adsorption to improve stability during the cutting process.
4. The laser cutting equipment for processing engine parts according to claim 3, characterized in that: The support base (42) is provided with a finished product ejection cylinder (423) below it, and the finished product ejection cylinder (423) is fixedly located below the clamping base (41). The finished product ejection cylinder (423) is used to lift the cut engine heat shield after laser cutting, so that the finished product is separated from the waste.
5. The laser cutting equipment for processing engine parts according to claim 1, characterized in that: The side suction hood (43) is located on the side of the edge of the engine heat shield. A side suction port (432) is fixedly installed on the outside of the side suction hood (43). The side suction hood (43) and the side suction port (432) are used to extract the flue gas, hot gas and molten particles carried by the mixed airflow from the cutting area.
6. The laser cutting equipment for processing engine parts according to claim 5, characterized in that: The side suction shroud (43) has an airflow shaping structure on the side near the engine heat shield. The airflow shaping structure includes a guide groove (433) and a rib (4331). The guide groove (433) is located on the upper surface of the clamping seat (41), and the rib (4331) is located at the opening of the guide groove (433). The rib (4331) is used to raise the edge area of the engine heat shield relative to the upper surface of the clamping seat (41), so that an airflow channel is formed between the bottom surface of the engine heat shield and the clamping seat (41). The guide groove (433) is connected to the airflow channel so that the airflow on the upper and lower surfaces of the engine heat shield can enter the side suction shroud (43) respectively.
7. The laser cutting equipment for processing engine parts according to claim 1, characterized in that: The airflow guide hood (322) is arranged around the nozzle of the laser cutting head (31), and the multiple connecting pipes (323) and the air outlet pipe (321) are distributed around the laser cutting head (31) so that the mixed airflow output by the multiple connecting pipes (323) forms a guide air curtain biased towards the lateral suction hood (43) below the laser cutting head (31).
8. The laser cutting equipment for processing engine parts according to claim 1, characterized in that: The two cutting stations (2) are slidably mounted on the frame (1) via slide rail assemblies, and the two cutting stations (2) can reciprocate along the length of the frame (1) so that when one cutting station (2) is located below the laser cutting actuator (3) for cutting, the other cutting station (2) is located on the outside for loading or unloading.
9. The laser cutting equipment for processing engine parts according to claim 3, characterized in that: The adsorption head (4212) is a omnidirectional floating structure to adapt to the curved shape of the bottom of the engine heat shield.
10. A laser cutting device for processing engine parts according to claim 1, characterized in that: The bottom end of the airflow guide hood (322) is provided with an inclined structure, which is used to guide the mixed airflow in a direction so that it deflects toward the lateral suction hood (43).