Automatic collecting and guiding structure for automobile laser cutting waste

Abstract

The invention discloses an automatic collecting and guiding structure for automobile laser cutting waste, and relates to the technical field of laser processing assistance, the automatic collecting and guiding structure comprises a box body, and a dynamic angle adjusting negative pressure auxiliary mechanism is arranged on the inner side of the box body. According to the automatic collecting and guiding structure for the automobile laser cutting waste, by arranging the dynamic angle adjusting negative pressure auxiliary mechanism, the waste slides down along the guiding plate in a stable state to be prevented from being accumulated, micropores in the surface of the guiding plate communicate with a negative pressure channel formed by the sealing shell, the telescopic hose and the connecting pipe, and the situation that the waste drifts around to pollute the environment is avoided; the problems that in the prior art, the guide angle of a fixed funnel type collecting structure is fixed, the guide angle cannot be dynamically adjusted according to the waste generation amount, light and thin waste drifts around, and the waste is wasted are solved. Workshop air is polluted, the air is attached to the surface of equipment to influence operation and maintenance cleaning, and continuous and efficient collection cannot be achieved.

Description

Technical Field

[0001] This invention relates to the field of laser processing auxiliary technology, specifically to an automatic collection and guiding structure for automotive laser cutting waste. Background Technology

[0002] In the automotive manufacturing process, laser cutting technology is widely used for cutting and processing metal or non-metal materials such as automotive body frames, chassis parts, and interior parts due to its advantages such as high cutting precision, high efficiency, and small heat-affected zone. The laser cutting process generates a large amount of waste, such as metal chips and non-metal residues, which need to be collected to avoid accumulation on the surface of the cutting worktable and affecting the precision of subsequent cutting processes. In the automotive laser cutting process, the workpiece is usually placed on a hollow metal worktable, and the waste generated by cutting falls into the waste collection device below.

[0003] However, the existing devices have the following shortcomings during use: In existing technologies, the collection structure for laser cutting waste mostly adopts a fixed funnel-type collection structure. The guide angle of the fixed funnel-type collection structure is fixed and cannot be dynamically adjusted according to the amount of waste generated. When cutting thick automotive steel plates, the waste is large in volume and falls at a fast speed, which easily forms new accumulations at the bottom of the inclined plate of the funnel. In addition, the thin waste generated during the laser cutting process is lightweight and easily affected by airflow. It cannot slide down the guide plate naturally and instead will scatter everywhere, polluting the workshop air and adhering to the equipment surface, affecting operation and maintenance cleaning, and failing to achieve continuous and efficient collection.

[0004] Therefore, we propose an automatic collection and guiding structure for automotive laser cutting waste to address the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic collection and guiding structure for automotive laser cutting waste. By connecting the end of the connecting pipe furthest from the telescopic hose to an external negative pressure extraction device, when cutting thick automotive steel sheets, a pressure sensor on the top of the guide plate continuously monitors the waste accumulation pressure. If the pressure value exceeds a preset threshold of the PLC controller, it indicates that waste is accumulating on the guide plate. At this time, the drive mechanism drives the rotating shaft to rotate synchronously in the opposite direction, increasing the tilt angle of the guide plate and using gravity to increase the downward speed of the waste. If the pressure value is below the threshold, the current angle is maintained or the angle is appropriately reduced to ensure that the waste slides smoothly along the guide plate, preventing waste from splashing due to excessive angle. Furthermore, the micropores on the surface of the guide plate are connected to the negative pressure channel formed by the sealing shell, telescopic hose, and connecting pipe. The negative pressure generates appropriate adsorption force to adsorb the thin, easily flyable waste generated during the cutting process onto the surface of the guide plate. This not only prevents such waste from scattering and polluting the environment but also assists the waste in sliding along the guide plate, reducing the sliding resistance between the waste and the guide plate surface, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic collection and guiding structure for automotive laser cutting waste, comprising a box, a dynamic angle-adjusting negative pressure auxiliary mechanism provided on the inner side of the box, a sorting and collection mechanism provided on the inner bottom of the box, a drive mechanism provided on the inner bottom of the box, and a PLC controller installed on one side of the box; The dynamic angle-adjusting negative pressure auxiliary mechanism includes two rotating shafts rotatably connected to the inside of the housing. A drive mechanism for driving the two rotating shafts to rotate synchronously in opposite directions is provided on one side of the housing. Two guide plates are fixedly sleeved on the outer surfaces of the two rotating shafts. Multiple pressure sensors are embedded in the top of each of the two guide plates. Multiple micro-holes are opened in the top of each of the two guide plates. Two sealing shells are fixedly connected to the bottom of the two guide plates. Two telescopic hoses are fixedly connected to the bottom of the two sealing shells. Two connecting pipes are fixedly connected to the ends of the two telescopic hoses away from the two sealing shells. The ends of the two connecting pipes away from the two telescopic hoses penetrate the housing.

[0007] Preferably, the sorting and collection mechanism includes two guide rails installed at the bottom of the box, with movable seats slidably connected to the two guide rails, and two collection frames provided on the top of the two movable seats, one collection frame for collecting metal waste and the other collection frame for collecting non-metallic waste.

[0008] Preferably, a second multi-stage electric telescopic rod is fixedly installed on one side of the box body. The telescopic end of the second multi-stage electric telescopic rod movably passes through the box body and is fixedly connected to the movable seat. Two T-shaped grooves are opened on the top of the movable seat. Two T-shaped blocks are slidably connected in the two T-shaped grooves. Two collection frames are fixedly connected to the top of the two T-shaped blocks. Two buckle grooves are opened on one side of the two collection frames.

[0009] Preferably, the drive mechanism includes a dual-axis motor fixedly installed on one side of the housing, and the two output ends of the dual-axis motor are fixedly connected to two drive shafts.

[0010] Preferably, one end of each of the two drive shafts is fixedly connected to two first bevel gears, one end of each of the two rotating shafts movably passes through the housing and is fixedly connected to two second bevel gears, the two first bevel gears mesh with the two second bevel gears, two support seats are fixedly connected to one side of the housing, and the two drive shafts are rotatably connected to the inner surfaces of the two support seats, and a second protective shell is installed on one side of the housing.

[0011] Preferably, the dynamic angle-adjusting negative pressure auxiliary mechanism further includes an angle sensor. The ends of the two rotating shafts away from the two second bevel gears are movably inserted through the housing and fixedly connected to two fixed disks. Each of the two fixed disks has multiple limiting holes at one end. The angle sensor is disposed on the outer surface of one of the rotating shafts.

[0012] Preferably, a first protective shell is installed on one side of the box, and a first multi-stage electric telescopic rod is fixedly installed on the inner side of the first protective shell. A connecting plate is fixedly connected to the telescopic end of the first multi-stage electric telescopic rod.

[0013] Preferably, a limiting rod is fixedly connected to one side of the connecting plate, and one end of the two limiting rods extends into two of the limiting holes.

[0014] Preferably, two limiting grooves are provided on the inner side of the first protective shell, and two limiting plates are slidably connected in the two limiting grooves. One side of the two limiting plates is fixedly connected to the connecting plate.

[0015] Preferably, a mounting plate is fixedly connected to the outer surface of the box, and four mounting holes are provided on the top of the mounting plate. A box door is hinged to one side of the box.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes a dynamic angle-adjusting negative pressure auxiliary mechanism. The end of the connecting pipe furthest from the telescopic hose is connected to an external negative pressure extraction device. When cutting thick automotive steel sheets, a pressure sensor on the top of the guide plate continuously monitors the pressure of accumulated waste. If the pressure exceeds a preset threshold by the PLC controller, it indicates that waste is accumulating on the guide plate. At this point, the drive mechanism rotates the shaft in the opposite direction, increasing the tilt angle of the guide plate and using gravity to accelerate the downward movement of the waste. If the pressure is below the threshold, the current angle is maintained or appropriately reduced to ensure the waste slides smoothly along the guide plate, preventing splashing due to excessive angle. Furthermore, the micropores on the surface of the guide plate... The negative pressure channel formed by the sealing shell, telescopic hose, and connecting pipe generates appropriate adsorption force, which can adsorb the thin, easily flyable waste generated during the cutting process onto the surface of the guide plate. This not only prevents such waste from scattering and polluting the environment, but also helps the waste slide down the guide plate, reducing the sliding resistance between the waste and the guide plate surface, further improving collection efficiency and enhancing the adaptability and stability of waste collection. It solves the problems in existing technologies where the guide angle of the fixed funnel-type collection structure is fixed, and the guide angle cannot be dynamically adjusted according to the amount of waste generated. Furthermore, thin waste will scatter everywhere, polluting the workshop air and adhering to the equipment surface, affecting operation and maintenance and cleaning, and failing to achieve continuous and efficient collection.

[0017] 2. This invention achieves precise separation and convenient transfer of metal and non-metal waste by setting up a classification and collection mechanism. The PLC controller can control the second multi-stage electric telescopic rod to drive the moving seat to slide along the guide rail according to the material of the workpiece being cut, and accurately move the collection box of the corresponding material to the bottom of the guide plate, ensuring that different types of waste fall into the corresponding collection box, avoiding the tedious process of subsequent sorting. In addition, the collection box is slidably connected to the T-shaped groove of the moving seat through the T-shaped block. With the slot design, the operator can easily pull the collection box out of the box for cleaning, reducing the labor and time costs of waste disposal.

[0018] 3. This invention, through the design of an angle sensor, a limiting structure, and a protective structure, balances the stability and safety of equipment operation. The angle sensor monitors the rotation angle of the shaft in real time, ensuring that the tilt angle of the guide plate is always within the optimal range, avoiding collection failure caused by angle deviation. When the guide plate is adjusted to the target angle, the first multi-stage electric telescopic rod pushes the limiting rod into the limiting hole of the fixed plate to lock the shaft and prevent the guide plate from accidentally shifting during operation. At the same time, the first and second protective shells respectively shield and protect the limiting structure and the dual-axis motor and other drive components, preventing waste splashing from damaging the components and extending the service life of the equipment. The mounting plate and mounting holes facilitate the quick and easy fixing of the entire device to the bottom of the hollow metal workbench, improving installation convenience. Attached Figure Description

[0019] Figure 1 This is a perspective view of the main structure of an automatic collection and guiding structure for automotive laser cutting waste according to the present invention; Figure 2 This is a left-side perspective view of an automatic collection and guiding structure for automotive laser cutting waste according to the present invention. Figure 3 This is a perspective view of the rear structure of an automatic collection and guiding structure for automotive laser cutting waste according to the present invention. Figure 4 This is a perspective view of the unfolded structure of the second protective shell and the box in an automatic collection and guiding structure for automotive laser cutting waste according to the present invention; Figure 5 This is a three-dimensional view of the fixed disk in an automatic collection and guiding structure for automotive laser cutting waste according to the present invention. Figure 6 This is a partial sectional perspective view of the first protective shell in an automatic collection and guiding structure for automotive laser cutting waste according to the present invention. Figure 7 This is a three-dimensional cross-sectional view of the box body in an automatic collection and guiding structure for automotive laser cutting waste according to the present invention. Figure 8 This is a three-dimensional view of the sealing shell in an automatic collection and guiding structure for automotive laser cutting waste according to the present invention. Figure 9 This is a perspective view of the collection frame and movable seat in an automatic collection and guiding structure for automotive laser cutting waste according to the present invention. Figure 10 This invention relates to an automatic collection and guiding structure for automotive laser cutting waste. Figure 5 Enlarged 3D view of the structure at point A in the middle.

[0020] In the diagram: 1. Housing; 2. Dynamic angle-adjusting negative pressure auxiliary mechanism; 201. Rotating shaft; 202. Guide plate; 203. Pressure sensor; 204. Micro-hole; 205. Sealing shell; 206. Telescopic hose; 207. Connecting pipe; 208. Angle sensor; 209. Fixing plate; 210. Limiting hole; 211. First protective shell; 212. First multi-stage electric telescopic rod; 213. Connecting plate; 214. Limiting rod; 215. Limiting groove; 216. Limiting... 3. Sorting and collecting mechanism; 301. Guide rail; 302. Movable seat; 303. Collection frame; 304. Second multi-stage electric telescopic rod; 305. T-slot; 306. T-block; 307. Buckle slot; 4. Drive mechanism; 401. Dual-axis motor; 402. Drive shaft; 403. First bevel gear; 404. Second bevel gear; 405. Support seat; 406. Second protective shell; 5. PLC controller; 6. Mounting plate; 7. Mounting hole; 8. Box door. Detailed Implementation

[0021] 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.

[0022] like Figure 1 - Figure 10 As shown, the present invention provides a technical solution: an automatic collection and guiding structure for automotive laser cutting waste, including a box 1, a dynamic angle adjustment negative pressure auxiliary mechanism 2 is provided on the inner side of the box 1, a classification collection mechanism 3 is provided on the inner bottom of the box 1, a drive mechanism 4 is provided on the inner bottom of the box 1, and a PLC controller 5 is installed on one side of the box 1. The dynamic angle-adjusting negative pressure auxiliary mechanism 2 includes two rotating shafts 201 rotatably connected to the inside of the housing 1. A drive mechanism 4 is provided on one side of the housing 1 to drive the two rotating shafts 201 to rotate synchronously in opposite directions. Two guide plates 202 are fixedly sleeved on the outer surfaces of the two rotating shafts 201. Multiple pressure sensors 203 are embedded in the top of each guide plate 202. Multiple micro-holes 204 are opened in the top of each guide plate 202. Two sealing shells 205 are fixedly connected to the bottom of the two guide plates 202. Two telescopic hoses 206 are fixedly connected to the bottom of the two sealing shells 205. Two connecting pipes 207 are fixedly connected to the ends of the two telescopic hoses 206 away from the two sealing shells 205. The ends of the two connecting pipes 207 away from the two telescopic hoses 206 penetrate the housing 1. The dynamic angle adjustment and negative pressure control mechanism 2... The pressure adsorption function forms a synergistic closed loop. The two rotating shafts 201 provide stable rotational support for the guide plate 202, ensuring structural rigidity during angle adjustment. The setting of multiple pressure sensors 203 enables monitoring of multiple areas of waste accumulation pressure, avoiding missed detection of local accumulation. The combination of micropores 204 and sealing shell 205 ensures that the negative pressure uniformly covers the surface of the guide plate 202. With the help of the telescopic hose 206 that can deform with the rotation of the guide plate 202, the airtightness of the negative pressure channel is maintained, while the freedom of angle adjustment is not restricted. This allows the negative pressure adsorption and dynamic angle adjustment functions to cooperate efficiently without interference. At the same time, a filter screen is set in the connecting pipe 207, which can intercept fine waste particles in the negative pressure airflow and prevent them from entering the external negative pressure extraction device with the airflow. This avoids the extraction device from malfunctioning due to particle blockage and ensures the long-term stable operation of the negative pressure system.

[0023] like Figure 1 and Figure 7As shown, the sorting and collection mechanism 3 includes two guide rails 301 installed at the bottom of the housing 1. A movable seat 302 is slidably connected to the two guide rails 301. Two collection frames 303 are set on the top of the two movable seats 302. One collection frame 303 is used to collect metal waste, and the other collection frame 303 is used to collect non-metallic waste. The sliding cooperation between the guide rails 301 and the movable seats 302 provides precise guidance for switching the collection frames 303, ensuring that the metal and non-metal collection frames 303 can accurately align with the discharge port of the guide plate 202, avoiding mixing of waste materials. The independent setting of the two collection frames 303 enables synchronous sorting and storage of waste materials without stopping the machine to change collection containers. This is suitable for scenarios involving alternating cutting of multiple materials in automobile manufacturing. Compared to a single collection frame 303 structure, it significantly improves continuous operation efficiency and provides a clean raw material basis for subsequent waste recycling.

[0024] like Figure 7 and Figure 9 As shown, a second multi-stage electric telescopic rod 304 is fixedly installed on one side of the housing 1. The telescopic end of the second multi-stage electric telescopic rod 304 extends through the housing 1 and is fixedly connected to the movable seat 302. Two T-slots 305 are opened on the top of the movable seat 302. Two T-blocks 306 are slidably connected in the two T-slots 305. Two collection frames 303 are fixedly connected to the top of the two T-blocks 306. Two latching slots 307 are opened on one side of the two collection frames 303. The second multi-stage electric telescopic rod 304 provides a stable driving force for the movable seat 302. With the help of the guide rail 301, the collection frames 303 are automatically and accurately positioned, reducing manual operation errors. The sliding connection between the T-slots 305 and the T-blocks 306 forms a detachable limiting structure, which not only ensures the stability of the collection frames 303 during transportation, but also simplifies the disassembly process. The latching slots 307 provide a convenient force application point for pulling out the collection frames 303. Operators can complete the cleaning without the aid of tools, reducing the labor intensity of waste disposal and improving equipment maintenance efficiency.

[0025] like Figure 4 As shown, the drive mechanism 4 includes a dual-axis motor 401 fixedly installed on one side of the housing 1. The two output ends of the dual-axis motor 401 are fixedly connected to two drive shafts 402. The dual-axis motor 401 can drive the two drive shafts 402 to rotate simultaneously. With the meshing transmission of the first bevel gear 403 and the second bevel gear 404, the two rotating shafts 201 are rotated synchronously in opposite directions, ensuring the consistency of the angle adjustment of the guide plates 202 on both sides and avoiding the waste material guide deviation caused by unilateral adjustment. The bevel gear transmission structure has high transmission efficiency and large torque, and can stably drive the guide plate 202 to cope with the impact of a large amount of waste material generated by cutting high-thickness steel plates.

[0026] like Figure 4As shown, one end of each of the two drive shafts 402 is fixedly connected to two first bevel gears 403, and one end of each of the two rotating shafts 201 movably passes through the housing 1 and is fixedly connected to two second bevel gears 404. The two first bevel gears 403 and the two second bevel gears 404 mesh with each other. Two support seats 405 are fixedly connected to one side of the housing 1, and the two drive shafts 402 are rotatably connected to the inner surfaces of the two support seats 405. A second protective shell 406 is installed on one side of the housing 1. The support seats 405 support the drive shafts 402, effectively counteracting the radial force generated by gear meshing, preventing the drive shafts 402 from bending and deforming during long-term operation, and ensuring transmission accuracy. The second protective shell 406 isolates the dual-axis motor 401, gears, and other core drive components from the outside, preventing waste and oil from splashing during the cutting process from adhering to the surface of the components, reducing component wear and failure risk, and extending the maintenance cycle and service life of the drive mechanism 4.

[0027] like Figure 1 , Figure 4 , Figure 6 and Figure 10 As shown, the dynamic angle adjustment negative pressure auxiliary mechanism 2 also includes an angle sensor 208. The ends of the two rotating shafts 201 away from the two second bevel gears 404 are movably inserted through the housing 1 and fixedly connected to two fixed disks 209. Each of the two fixed disks 209 has multiple limiting holes 210 at one end. The angle sensor 208 is set on the outer surface of one of the rotating shafts 201. The angle sensor 208 converts the rotation angle of the rotating shaft 201 into an electrical signal in real time and feeds it back to the PLC controller 5 to form a closed-loop control of angle adjustment, ensuring that the guide plate 202 accurately stops at the optimal angle and avoids errors from manual adjustment. The fixed disks 209 and the limiting holes 210 provide a mechanical positioning reference for the guide plate 202. With the subsequent limiting rod 214, the angle is locked, which solves the angle drift problem that is easy to occur when relying solely on motor self-locking and improves the stability of equipment operation.

[0028] like Figure 1 and Figure 6 As shown, a first protective shell 211 is installed on one side of the housing 1. A first multi-stage electric telescopic rod 212 is fixedly installed on the inner side of the first protective shell 211. A connecting plate 213 is fixedly connected to the telescopic end of the first multi-stage electric telescopic rod 212. The first protective shell 211 provides dustproof and impact protection for the limiting structure, preventing waste materials from damaging the first multi-stage electric telescopic rod 212 and the limiting rod 214.

[0029] like Figure 6 , Figure 7 and Figure 10As shown, a limiting rod 214 is fixedly connected to one side of the connecting plate 213. One end of the two limiting rods 214 extends into two of the limiting holes 210. The first multi-stage electric telescopic rod 212 drives the two limiting rods 214 to move synchronously through the connecting plate 213, ensuring that the two fixed plates 209 are locked at the same time and ensuring that the force on both sides of the guide plate 202 is balanced. The locking method of the limiting rods 214 being inserted into the limiting holes 210 is simple in structure and responds quickly. It can achieve mechanical fixation immediately after the guide plate 202 is adjusted into place, ensuring angular stability.

[0030] like Figure 6 and Figure 10 As shown, two limiting grooves 215 are provided on the inner side of the first protective shell 211. Two limiting plates 216 are slidably connected in the two limiting grooves 215. One side of the two limiting plates 216 is fixedly connected to the connecting plate 213. The sliding cooperation between the limiting grooves 215 and the limiting plates 216 limits the movement trajectory of the connecting plate 213, preventing the first multi-stage electric telescopic rod 212 from deviating during extension and retraction, ensuring that the limiting rod 214 can be accurately aligned with the limiting hole 210, and avoiding locking failure due to alignment deviation. At the same time, this structure disperses the radial force on the first multi-stage electric telescopic rod 212 when the limiting rod 214 is under force, reducing the risk of bending damage to the first multi-stage electric telescopic rod 212 and improving the structural reliability of the limiting mechanism.

[0031] like Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, a mounting plate 6 is fixedly connected to the outer surface of the housing 1. Four mounting holes 7 are provided on the top of the mounting plate 6. A door 8 is hinged to one side of the housing 1. The pressure sensor 203, angle sensor 208, first multi-stage electric telescopic rod 212, second multi-stage electric telescopic rod 304, and dual-axis motor 401 are all electrically connected to the PLC controller 5. The combination of the mounting plate 6 and the four mounting holes 7 allows for various fixing methods. The housing 1 can be quickly fixed to the bottom of the hollow workbench using bolts. The hinged door 8 provides a convenient passage for the loading and unloading of the collection frame 303 and for the maintenance of internal components of the housing 1, without requiring the operator to disassemble the housing 1. Maintenance can be completed in one go. The PLC controller 5 realizes centralized linkage control of the pressure sensor 203, angle sensor 208, dual-axis motor 401, first multi-stage electric telescopic rod 212, and second multi-stage electric telescopic rod 304. This enables the equipment to automatically complete a series of actions such as adjusting the angle of the guide plate 202, switching the collection frame 303, and locking the angle of the guide plate 202 according to the amount of waste generated. This achieves fully automated operation of waste collection and reduces manual intervention. At the same time, centralized control facilitates fault diagnosis and parameter debugging. Parameters such as pressure threshold and angle range can be flexibly adjusted according to different cutting conditions, improving the adaptability and intelligence level of the equipment.

[0032] The usage and working principle of this device: During the fixed installation and equipment start-up phase, the entire device is precisely fixed to the bottom of the hollow metal worktable of the automotive laser cutting equipment using bolts through the mounting plate 6 on the outer surface of the housing 1 and the four mounting holes 7 on the top. Ensure that the upper opening of the guide plate 202 is aligned with the hollow area of ​​the worktable. Connect the end of the connecting pipe 207 in the dynamic angle adjustment negative pressure auxiliary mechanism 2 away from the telescopic hose 206 to the external negative pressure suction device. Connect the power supply of the PLC controller 5 to the external negative pressure suction device, start the negative pressure suction device, and set the pressure threshold through the PLC controller 5. During the automatic collection and operation phase, after the laser cutting equipment is started, the waste generated from cutting falls onto the surface of the guide plate 202 through the hollow area of ​​the worktable. The pressure sensor 203 monitors the pressure of the accumulated waste in real time, and the angle sensor 208 provides real-time feedback on the angle data of the rotating shaft 201 (i.e., the guide plate 202). All data are transmitted to the PLC controller 5 for analysis. When the pressure sensor 203 detects that the pressure value exceeds the preset threshold, the PLC controller 5 drives the dual-axis motor 401 to operate. Through the meshing transmission of the drive shaft 402, the first bevel gear 403, and the second bevel gear 404, the two rotating shafts 201 rotate synchronously in opposite directions, increasing the tilt angle of the guide plate 202 and accelerating the descent of the waste. At the same time, the first multi-stage electric telescopic rod 212 pushes the connecting plate 213, causing the limiting rod 214 to insert into the limiting hole 210 of the fixed plate 209, locking the guide plate. At angle 202, when the pressure sensor 203 detects that the pressure value is lower than the preset threshold, it indicates that there is little waste on the surface of the guide plate 202 and no risk of accumulation. The PLC controller 5 will drive the dual-axis motor 401 to rotate in the opposite direction. Through the transmission structure, it will drive the two rotating shafts 201 to rotate synchronously in the opposite direction, appropriately reducing the tilt angle of the guide plate 202 (which can be adjusted to the initial angle or a lower stable angle) to prevent a small amount of thin waste from sliding down too fast due to an excessively large angle and flying away after breaking free from the suction force constraint. At the same time, it controls the first multi-stage electric telescopic rod 212 to retract, driving the limit rod 214 to disengage from the limit hole 210 of the fixed plate 209, releasing the angle lock. After the guide plate 202 is adjusted to the target angle, the first multi-stage electric telescopic rod 212 extends again, causing the limit rod 214 to insert into the corresponding limit hole 210, re-locking the angle, and ensuring that the waste slides down smoothly. During the negative pressure adsorption stage, the external negative pressure suction device forms a negative pressure environment through the connecting pipe 207, the telescopic hose 206 and the sealing shell 205. The micropores 204 on the surface of the guide plate 202 transmit the negative pressure to the surface, generating a stable adsorption force on the thin and easily airborne waste, but without hindering its descent. The waste slides down close to the surface of the guide plate 202, which not only avoids the waste from scattering and polluting the environment, but also reduces the sliding friction resistance between the waste and the guide plate 202. When the thin waste slides down the guide plate 202 to the collection opening under the constraint of the adsorption force, on the one hand, the gravitational component force brought about by the tilt angle of the guide plate 202 will gradually be greater than the adsorption force, and on the other hand, the negative pressure airflow at the collection opening will form a downward pulling auxiliary force. Under the dual action, the thin waste will naturally detach from the surface of the guide plate 202 and fall into the corresponding collection frame 303 below with the airflow or gravity. During the sorting and collection switching stage, when the cutting material is switched (such as from metal to non-metal), the PLC controller 5 controls the extension and retraction of the second multi-stage electric telescopic rod 304, which drives the moving seat 302 to slide along the guide rail 301, moving the collection box 303 of the corresponding material to directly below the discharge port of the guide plate 202, thereby realizing the sorting and collection of waste materials. During the waste cleaning stage, when the waste in the collection frame 303 reaches a certain amount, turn off the laser cutting equipment and the negative pressure exhaust device, open the box door 8, fasten the buckle groove 307 on one side of the collection frame 303, pull out the collection frame 303 along the T-slot 305, pour out the waste, and then reinstall it.

[0033] The wiring diagrams for the pressure sensor 203, angle sensor 208, first multi-stage electric telescopic rod 212, second multi-stage electric telescopic rod 304, dual-axis motor 401, and PLC controller 5 in this invention are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring layouts of the pressure sensor 203, angle sensor 208, first multi-stage electric telescopic rod 212, second multi-stage electric telescopic rod 304, dual-axis motor 401, and PLC controller 5 will not be explained in detail.

[0034] 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. An automatic collection and guiding structure for automotive laser cutting waste, characterized in that, Includes a box (1), a dynamic angle adjustment negative pressure auxiliary mechanism (2) is provided on the inner side of the box (1), a classification collection mechanism (3) is provided on the inner bottom of the box (1), a drive mechanism (4) is provided on the inner bottom of the box (1), and a PLC controller (5) is installed on one side of the box (1). The dynamic angle-adjusting negative pressure auxiliary mechanism (2) includes two rotating shafts (201) rotatably connected to the inside of the box (1). A drive mechanism (4) for driving the two rotating shafts (201) to rotate synchronously in opposite directions is provided on one side of the box (1). Two guide plates (202) are fixedly sleeved on the outer surface of the two rotating shafts (201). Multiple pressure sensors (203) are embedded in the top of the two guide plates (202). Multiple micro holes (204) are opened in the top of the two guide plates (202). Two sealing shells (205) are fixedly connected to the bottom of the two guide plates (202). Two telescopic hoses (206) are fixedly connected to the bottom of the two sealing shells (205). Two connecting pipes (207) are fixedly connected to the end of the two telescopic hoses (206) away from the two sealing shells (205). The end of the two connecting pipes (207) away from the two telescopic hoses (206) penetrates the box (1).

2. The automatic collection and guiding structure for automotive laser cutting waste according to claim 1, characterized in that: The sorting and collection mechanism (3) includes two guide rails (301) installed at the bottom of the box (1), and a movable seat (302) is slidably connected on the two guide rails (301). Two collection frames (303) are provided on the top of the two movable seats (302), one of which is used to collect metal waste and the other is used to collect non-metal waste.

3. The automatic collection and guiding structure for automotive laser cutting waste according to claim 2, characterized in that: A second multi-stage electric telescopic rod (304) is fixedly installed on one side of the box (1). The telescopic end of the second multi-stage electric telescopic rod (304) extends through the box (1) and is fixedly connected to the movable seat (302). Two T-shaped grooves (305) are opened on the top of the movable seat (302). Two T-shaped blocks (306) are slidably connected in the two T-shaped grooves (305). Two collection frames (303) are fixedly connected to the top of the two T-shaped blocks (306). Two buckle grooves (307) are opened on one side of the two collection frames (303).

4. The automatic collection and guiding structure for automotive laser cutting waste according to claim 1, characterized in that: The drive mechanism (4) includes a dual-axis motor (401) fixedly installed on one side of the housing (1), and the two output ends of the dual-axis motor (401) are fixedly connected to two drive shafts (402).

5. The automatic collection and guiding structure for automotive laser cutting waste according to claim 4, characterized in that: Two first bevel gears (403) are fixedly connected to one end of the two drive shafts (402), and two second bevel gears (404) are fixedly connected to one end of the two rotating shafts (201) through the housing (1). The two first bevel gears (403) and the two second bevel gears (404) are meshed together. Two support seats (405) are fixedly connected to one side of the housing (1), and the two drive shafts (402) are rotatably connected to the inner surface of the two support seats (405). A second protective shell (406) is installed on one side of the housing (1).

6. The automatic collection and guiding structure for automotive laser cutting waste according to claim 5, characterized in that: The dynamic angle adjustment negative pressure auxiliary mechanism (2) also includes an angle sensor (208). The ends of the two rotating shafts (201) away from the two second bevel gears (404) are movably inserted through the housing (1) and fixedly connected to two fixed disks (209). Each of the two fixed disks (209) has multiple limiting holes (210) at one end. The angle sensor (208) is set on the outer surface of one of the rotating shafts (201).

7. The automatic collection and guiding structure for automotive laser cutting waste according to claim 6, characterized in that: A first protective shell (211) is installed on one side of the box (1), and a first multi-stage electric telescopic rod (212) is fixedly installed on the inner side of the first protective shell (211). A connecting plate (213) is fixedly connected to the telescopic end of the first multi-stage electric telescopic rod (212).

8. The automatic collection and guiding structure for automotive laser cutting waste according to claim 7, characterized in that: One side of the connecting plate (213) is fixedly connected to a limiting rod (214), and one end of the two limiting rods (214) extends into two of the limiting holes (210).

9. The automatic collection and guiding structure for automotive laser cutting waste according to claim 7, characterized in that: The first protective shell (211) has two limiting grooves (215) on its inner side, and two limiting plates (216) are slidably connected in the two limiting grooves (215). One side of the two limiting plates (216) is fixedly connected to the connecting plate (213).

10. The automatic collection and guiding structure for automotive laser cutting waste according to claim 1, characterized in that: An installation plate (6) is fixedly connected to the outer surface of the box (1). The top of the installation plate (6) has four installation holes (7). A box door (8) is hinged to one side of the box (1).

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