Slag cleaning device and method for laser blanking machine

Abstract

The invention provides a slag cleaning device and method for a laser blanking machine, relates to the technology of laser processing equipment, and particularly discloses a mounting shell, an inlet and outlet is formed in the bottom of the mounting shell, a main shaft is arranged in the shell, two mounting bases are arranged on the main shaft in a sliding mode, a tool base is arranged on the outer side of each mounting base through a connecting frame, and a cutter head with a cutter is arranged on each tool base. The spindle is driven by the driving structure to rotate, a guide cylinder is mounted on the outer side of the mounting seat, guide seats are slidably arranged in the guide cylinder through buffer springs, correction blocks capable of penetrating through the connecting frame are arranged on the guide seats, and the pushing structure can synchronously drive the two guide seats to move face to face or back to back. The device further comprises a grinding strip arranged in the middle of the main shaft, a guide frame and a position adjusting structure, the guide frame and the position adjusting structure are used for adjusting the overall height, tooth groove fluctuation of the sword grid is self-adapted, and the cleaning quality and efficiency are improved.

Description

A slag cleaning device and method for a laser cutting machine Technical Field

[0001] This invention relates to the field of laser processing equipment technology, and more specifically, to a slag cleaning device and cleaning method for a laser feeder. Background Technology

[0002] Laser cutting machines typically consist of a cutting section and a material support section. The material support section is often composed of equally spaced slats (also known as slats). When a laser cutting machine cuts the sheet material placed on the slats, it generates a large amount of high-temperature molten slag. This molten slag splashes and adheres to the slats on the worktable. Over time, this accumulation not only affects the working stability and cutting quality of the laser cutting machine but also requires frequent shutdowns for cleaning.

[0003] Furthermore, when high-temperature molten slag adheres to the tips of the blade guard, it can easily cause thermal deformation or bending of the tips. If not corrected promptly after cleaning, the deformed tips cannot provide effective support for the subsequently cut sheet metal, affecting processing accuracy. The blade guard has a large number of tips, making manual correction inefficient. Existing cleaning devices mostly use clamping arms or friction disc structures, which are ineffective at removing molten slag from bent tips, and forced cleaning can easily damage the tips, necessitating the replacement of the entire blade guard, resulting in high costs. Summary of the Invention

[0004] The purpose of this invention is to provide a slag cleaning device for a laser feeder, which addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0005] The technical solution of this invention is implemented as follows:

[0006] This invention provides a slag cleaning device for a laser cutting machine, comprising a mounting shell with an inlet and outlet at the bottom, and a main shaft rotatably mounted inside the mounting shell; two mounting seats slidably mounted in the middle of the main shaft, each mounting seat having a tool holder fitted on its outer side; a portion of the tool holder protrudes from the inlet and outlet and extends outward; a connecting frame for connecting the tool holder is provided on the outer wall of the mounting seat; a cutter disc is provided on the opposite sidewall of each of the two tool seats, and a plurality of cutters are arranged around the sidewall of the cutter disc; a drive structure is provided inside the mounting shell for driving the main shaft to rotate; a guide cylinder is installed on the opposite sidewall of each of the two mounting seats, and the guide cylinders are connected to... The main shaft is coaxial; guide seats coaxial with the main shaft are slidably installed inside the guide cylinder, with a portion of the guide seat embedded in the guide cylinder. A buffer spring connected to the guide seat is installed inside the guide cylinder. Several straightening blocks are arranged around the opposite sidewalls of the two guide seats, extending outwards after passing through their corresponding connecting frames. A pushing structure is provided inside the mounting housing to drive the two guide seats to move synchronously, either towards or away from each other along the main shaft axis. Two sets of guide structures are provided inside the mounting housing, each slidably connected to one of the two guide seats to restrict the guide seats to move only along the main shaft axis. The pushing structure is connected to the drive structure via a transmission.

[0007] In some technical solutions of the present invention, the pushing structure includes two coaxial transmission shafts installed in the mounting housing. A deflection wheel is installed on the outer wall of each transmission shaft. A limit seat is installed on the outer wall of each guide cylinder. A limit channel matching the deflection wheel is opened in the limit seat. A drive motor that is connected to one of the transmission shafts is provided in the mounting housing. A transmission structure that meshes with the two transmission shafts is provided in the mounting housing.

[0008] In some technical solutions of the present invention, the drive structure includes two driving gears arranged in pairs, which are respectively mounted on two transmission shafts. Both ends of the main shaft are equipped with long gears, which mesh with the driving gears located on the same side.

[0009] In some technical solutions of the present invention, the long gears are slidably disposed on the outer side wall of the main shaft, and the long gears are connected to the guide seats located on the same side. A guide groove is provided on the outer side wall of the main shaft along its axial direction, and a guide block is slidably disposed in the guide groove. An installation groove matching the guide block is provided on the inner side wall of the long gears, and a portion of the guide block is embedded in the installation groove. A reset spring connected to the guide block is provided in the installation groove, and a wedge-shaped surface is provided on the guide block away from the bottom of the installation groove.

[0010] In some technical solutions of the present invention, the guide structure includes two guide sleeves installed on the outer wall of the guide cylinder, and a guide rod slidably disposed inside the guide sleeve and connected to the inner wall of the mounting shell.

[0011] In some technical solutions of the present invention, a plurality of grinding strips are also included, which are arranged around the middle part of the main shaft.

[0012] In some technical solutions of the present invention, the grinding strips are all slidably disposed on the outer side wall of the main shaft along the axial direction of the main shaft. A limiting groove is opened on the outer side wall of the main shaft, and a limiting block connected to the grinding strip is slidably disposed in the limiting groove. Several grinding strips are rotatably connected to two guide seats respectively.

[0013] In some technical solutions of the present invention, a guide frame is further included. A corrugated groove is formed on the side wall of the guide frame opposite to the tooth groove in the horizontal direction. A displacement seat connected to the mounting shell is slidably arranged in the groove. The guide frame is provided with an adjustment structure for driving the displacement seat to move in the vertical direction. The adjustment structure includes two electric push rods arranged in pairs. The body of the electric push rod is connected to the displacement seat, and the telescopic end of the electric push rod is connected to the mounting shell.

[0014] In some technical solutions of the present invention, a retainer is provided between the telescopic end of the electric push rod and the mounting shell, and a plurality of optical shafts are provided between the retainer and the displacement seat. One side of the optical shaft is connected to the mounting shell, and the other side of the optical shaft extends outward after passing through the retainer. Each optical shaft is fitted with a limiting spring, and a limiting ring is installed on the side of the optical shaft away from the mounting shell.

[0015] Compared with the prior art, the present invention has at least the following advantages or beneficial effects: In this structure, the high-speed rotating cutting tool and the axially extendable straightening block are mounted on the same spindle within the mounting housing. The cutting tool and the straightening block are driven and controlled by a coaxial drive structure and a push structure, enabling the device to automatically switch and perform rotary cutting cleaning and linear hammering straightening cleaning operations in a single operation. Furthermore, the two close-to-each-other straightening blocks hammer the tips of the blade guard, which can remove the slag located in the bent area of ​​the blade guard tip. Subsequently, the next hammering of the blade guard tip corrects the deformed or bent parts. In this way, in conjunction with the cutting tool, the efficiency of this structure in removing slag is improved. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the slag cleaning device of the present invention cleaning the sword grid.

[0017] Figure 2 is a side view of the slag cleaning device and the sword grid combination in this invention.

[0018] Figure 3 is a three-dimensional structural diagram of the slag cleaning device in this invention.

[0019] Figure 4 is a three-dimensional structural diagram of the combination of the pushing structure and the driving structure in this invention.

[0020] Figure 5 is a front view schematic diagram of the combination of the melting push structure and the driving structure of the present invention.

[0021] Figure 6 is a partial cross-sectional side view of the combined push structure and drive structure of the present invention.

[0022] Figure 7 is a schematic cross-sectional view of section AA in Figure 6.

[0023] Reference numerals: 1. Mounting housing; 101. Inlet / outlet; 2. Spindle; 3. Mounting base; 301. Connecting frame; 4. Grinding structure; 401. Tool holder; 402. Tool head; 403. Tool; 5. Guide cylinder; 501. Guide seat; 502. Straightening block; 503. Buffer spring; 504. Limiting seat; 505. Limiting channel; 506. Guide sleeve; 507. Guide rod; 6. Pushing structure; 601. Drive shaft; 602. Deflecting wheel; 603. Drive motor; 604. Transmission 7. Drive structure; 701. Drive gear; 702. Long gear; 703. Guide groove; 704. Guide block; 705. Mounting groove; 706. Return spring; 707. Wedge surface; 708. Inclined surface; 8. Guide frame; 801. Slide groove; 802. Displacement seat; 9. Adjustment structure; 901. Electric push rod; 902. Cage; 903. Optical shaft; 904. Limit spring; 905. Limit ring; 10. Grinding strip; 1001. Limit groove; 1002. Limit block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0026] This invention provides a slag cleaning device for a laser cutting machine. To address the problem in the prior art where, during laser cutting of a material plate, molten metal slag melted by the laser adheres to the cutting table, forming slag on the slats, requires cleaning after long-term accumulation. Furthermore, the high temperature of the laser-melted slag, when adhering to the tips of the slats, easily causes deformation or bending of the slats. If not corrected promptly after cleaning, it cannot effectively support the cut material plate. Moreover, the bent slats, affected by the slag, are difficult to clean. To solve these problems, as shown in Figures 1-7, this device has a rectangular mounting shell 1, hollow inside, with an inlet / outlet 101 at the bottom. A main shaft 2 is rotatably mounted inside the mounting shell 1 via bearings. Two mounting seats 3 are fitted in the middle of the shell, both sliding on the outer wall of the main shaft 2 via keyways and key blocks. Grinding structures 4 are mounted on the outer side of each mounting seat 3 via connecting brackets 301. The drive structure 7 is housed inside the mounting housing 1 and is used to drive the spindle 2 to rotate.

[0027] Two guide cylinders 5 are respectively fixedly installed on the opposite sidewalls of two mounting seats 3 and are coaxially arranged with the main shaft 2; two guide seats 501 are respectively coaxially arranged with the two guide cylinders 5, and a portion of each guide seat 501 is slidably fitted inside the corresponding guide cylinder 5; a buffer spring 503 is provided inside the guide cylinder 5, and the two ends of the buffer spring 503 abut against the bottom of the guide cylinder 5 and the guide seat 501 respectively; multiple straightening blocks 502 are arranged around the opposite sidewalls of the two guide seats 501 and extend outward after passing through the corresponding connecting frame 301; a pushing structure 6 is arranged in the mounting shell 1 to synchronously push the two guide seats 501 to move towards or away from each other along the axial direction of the main shaft 2. Two sets of guide structures are respectively arranged in the mounting shell 1, and each set of guide structures is slidably connected to one guide seat 501 to limit its movement only along the axial direction of the main shaft 2. Among them, the pushing structure 6 is connected to the driving structure 7.

[0028] The grinding structure 4 includes two tool holders 401 mounted on corresponding mounting seats 3 via connecting brackets 301, with the tool holders 401 threadedly connected to their respective mounting seats 3. A cutter disc 402 located on the tool holder 401 partially passes through the inlet / outlet 101 and extends outward. The two cutter discs 402 are respectively fixed to the opposite sidewalls of the two tool holders 401, and at least six arc-shaped cutters 403 are arranged around the sidewall of each cutter disc 402; the cutters 403 are made of cemented carbide. When the drive structure 7 drives the spindle 2 to rotate, the cutter discs 402 and cutters 403, driven by the spindle 2 to rotate at high speed, mechanically cut and impact the molten slag, causing it to separate from both sides of the slag.

[0029] When the structure 6 is working, it pushes the guide seats 501 located in the two guide cylinders 5 to move synchronously, so that the two mounting seats 3, which are slidably connected to the guide seats 501 through the guide cylinders 5 and the buffer springs 503, move closer or further apart, and control the relative distance between them. It can quickly adapt to slag of different thicknesses without frequent tool changes or adjustments, thus improving the versatility and continuity of the equipment. The buffer spring 503 installed inside the guide cylinder 5 ensures that the pressure of the tool 403 on the molten slag is flexible when it initially contacts the molten slag. This means that the tool 403 has room to retract while still being in contact with the molten slag and scraping it, thus avoiding the possibility of the tool 403 and the sword grid breaking due to hard contact. When the pushing structure 6 causes the guide seat 501 to compress the buffer spring 503 in the guide cylinder 5 until it can no longer be compressed, the straightening block 502 installed on the guide cylinder 5 protrudes from the connecting frame 301 and contacts the tip of the sword grid. The two straightening blocks 502, which are close to each other, hammer the tip of the sword grid, correcting any deformation or bending. They can also knock away the molten slag located in the bending area of ​​the sword grid tip, thus improving the efficiency of this structure in handling molten slag in conjunction with the tool 403. The periodic reciprocating motion of the drive structure 6 can control the straightening block 502 connected to the guide seat 501 to quickly reach the tip of the sword grid through the connecting frame 301, and then quickly return to the guide cylinder 5 without obstructing the spindle 2 from driving the cutter head 402 and the cutter 403 on the tool holder 401 to rotate at high speed to cut the molten slag through the mounting seat 3 and the connecting frame 301.

[0030] The guide structure is set to constrain the guide seat 501, so that it is strictly translated along the axis of the main shaft 2, avoiding radial runout or wobble, and ensuring the accuracy and stability of the operation.

[0031] In some technical solutions of the present invention, the specific structure of the driving structure 6 is two coaxial transmission shafts 601 installed inside the mounting housing 1. Each transmission shaft 601 has a deflector wheel 602 mounted on its outer side wall. Each guide cylinder 5 has a limiting seat 504 mounted on its outer side wall. The limiting seat 504 has a limiting channel 505 that matches the deflector wheel 602. The mounting housing 1 contains a drive motor 603 that is connected to one of the transmission shafts 601. The mounting housing 1 also contains a transmission structure 604 that meshes with both transmission shafts 601. When the operator starts the drive motor 603, it drives the transmission shaft 601 connected to it to rotate. This transmission shaft 601 drives the other transmission shaft 601 to rotate synchronously through the transmission structure 604 (such as a gear set or synchronous belt), thereby causing the deflector wheels 602 mounted on the two transmission shafts 601 to rotate accordingly. Because the deflector wheel 602 is embedded in the limiting channel 505 of the limiting seat 504, when the deflector wheel 602 rotates, its eccentric part will generate periodic displacement within the limiting channel 505. This will push the limiting seat 504 and the guide seat 501 fixed thereto to make linear movements along the main shaft 2 towards or away from the blade grid under the guidance of the guide cylinder 5. This will change the relative distance between the cutter discs 402 located on both sides of the blade grid, thereby dynamically grinding the slag attached to both sides of the rack. The minimum distance between the two cutter discs 402 is equal to the thickness of the blade grid.

[0032] In some technical solutions of the present invention, the specific structure of the drive structure 7 includes two paired drive gears 701, which are respectively mounted on two transmission shafts 601. Both ends of the main shaft 2 are equipped with long gears 702, which mesh with the drive gears 701 located on the same side. When the transmission shaft 601 is driven to rotate by the drive motor 603, the drive gears 701 mounted on it rotate synchronously. The drive gears 701 mesh with the long gears 702 mounted at the tail end of the main shaft 2, thereby transmitting torque from the transmission shaft 601 to the long gears 702. The long gears 702 then drive the main shaft 2 and all its rotating components (mounting base 3, connecting frame 301, tool holder 401, and cutter head 402) to rotate at high speed, mechanically cutting and impacting the molten slag, causing the slag to detach from the blade grid.

[0033] Preferably, the long gears 702 are slidably disposed on the outer side wall of the main shaft 2. The long gears 702 are connected to the guide seats 501 located on the same side. A guide groove 703 is provided on the outer side wall of the main shaft 2 along its axial direction. A guide block 704 is slidably disposed in the guide groove 703. An installation groove 705 matching the guide block 704 is provided on the inner side wall of the long gears 702. A portion of the guide block 704 is embedded in the installation groove 705. A return spring 706 connected to the guide block 704 is provided in the installation groove 705. A wedge-shaped surface 707 is provided on the bottom of the guide block 704 away from the installation groove 705. During routine cleaning operations, the long gear 702 engages with the guide groove 703 on the main shaft 2 via the guide block 704 on its inner side, driving the main shaft 2 to rotate synchronously. During the first cycle when the push structure 6 drives the guide seat 501 to move axially, the long gear 702 connected to the guide seat 501 can slide axially along the main shaft 2 together with the guide cylinder 5 through the sliding engagement of the guide block 704 and the guide groove 703, without interrupting the power transmission. When the guide block 704 on the long gear 702 moves to the end of the guide groove 703 near the middle of the main shaft, the guide groove 703 disengages from the guide groove 703, and the long gear 702 disengages from the drive gear 701. At this time, the main shaft 2 stops rotating. Meanwhile, the pushing structure 6 continues to push the guide seat 501 towards the sword grid, compressing the buffer spring 503 in the guide cylinder 5 until it cannot be compressed further. Then, the straightening block 502 mounted on the guide seat 501 protrudes from the connecting frame 301 and contacts the tooth tip of the sword grid. The two straightening blocks 502, moving in opposite directions, hammer and straighten the deformed or bent areas of the sword grid's tooth tips, restoring them to their original position. During this process, while the two straightening blocks 502 hammer and straighten the sword grid's tooth tips, they can also remove slag adhering to the bent areas of the sword grid's tooth tips, improving the structure's efficiency in removing slag. Similarly, during another cycle of the periodic reciprocating motion of the pushing structure 6 (pulling the guide...), (When the guide seat 501 moves away from the sword grid), after the guide seat 501 is reset, the straightening block 502 connected to it quickly passes through the connecting frame 301 and returns to the guide cylinder 5. At the same time, the long gear 702 connected to it is once again inserted into the guide groove 703 on the main shaft 2 through the guide block 704, so that the main shaft 2 meshes with the driving gear 701 through the long gear 702, and the main shaft 2 gets power again. Then the main shaft 2 once again drives the cutter head 402 and the cutter 403 on the tool holder 401 to rotate at high speed through the mounting seat 3 and the connecting frame 301 to perform rotary cutting of the slag attached to the sword grid. In this way, the slag attached to the outside of the sword grid is cleaned up in the extension direction of the sword grid.

[0034] Preferably, the guide block 704 also has an inclined surface on its side wall. The inclined surface and the wedge-shaped surface 707 are located on two adjacent and mutually perpendicular surfaces of the guide block 704. When the cutter head 402 encounters abnormally hard or stuck slag, causing a sharp increase in the load on the spindle 2, the torque acting on the long gear 702 will cause the guide block 704 to overcome the elastic force of the return spring 706, and the guide block 704 will rotate circumferentially along the spindle 2. At this time, the guide block 704 will slide out of the guide groove 703 along the inclined surface. The long gear 702 slides relative to the spindle 2, and the spindle 2 stops rotating, thereby protecting the cutter 403 and the transmission system from damage. When the overload is released, under the action of the return spring 706, the guide block 704 slides back into the guide groove 703, restoring normal meshing transmission.

[0035] In some technical solutions of the present invention, the guide structure specifically includes two guide sleeves 506 mounted on the outer wall of the guide cylinder 5, and a guide rod 507 slidably disposed within the guide sleeve 506 and connected to the inner wall of the mounting shell 1. When the pushing structure 6 drives the guide cylinder 5 to move axially, the guide sleeves 506 mounted on the outer side of the guide cylinder 5 slide along the guide rod 507 fixed to the inner wall of the mounting shell 1. This process occurs throughout the entire reciprocating motion, providing linear constraint for the movement of the guide seat 501 and preventing the guide seat 501 from twisting.

[0036] In some technical solutions of this invention, in order to remove the slag adhering to the tooth gaps and reduce protrusions on the blade grid, a plurality of grinding strips 10 are arranged around the middle of the main shaft 2. When the main shaft 2 rotates, the middle of the main shaft 2 spans between any two adjacent teeth of the blade grid. Driven by the main shaft 2, the plurality of grinding strips 10 arranged around it rotate at high speed. These grinding strips 10 are located between the two cutter heads 402 and rotate with the main shaft 2, which can grind the slag adhering to the tooth gaps of the blade grid, thereby improving the slag removal effect.

[0037] Preferably, the grinding strip 10 is slidably disposed in the limiting groove 1001 of the main shaft 2 via the limiting block 1002, thereby improving the connection strength between the grinding strip 10 and the main shaft 2. Several grinding strips 10 are respectively connected to two mounting seats 3. When the pushing structure 6 drives the two guide cylinders 5 to force the two mounting seats 3 to move towards or away from each other, the movement of the guide cylinders 5 will cause the grinding strips 10 to move linearly closer to or further away from each other along the axial direction of the main shaft 2, thereby further grinding the slag adhering to the gaps in the shavings.

[0038] In some technical solutions of the present invention, to adapt to the wavy undulations of the sword grating groove on the workbench, a guide frame 8 spanning the workbench is also provided. The guide frame 8 is installed on both sides of the workbench via a slide rail structure. A corrugated groove 801 is formed horizontally on the side wall of the guide frame 8 opposite to the tooth groove. A displacement seat 802 connected to the mounting shell 1 is slidably disposed in the groove 801. An adjustment structure 9 is provided on the guide frame 8 for driving the displacement seat 802 to move vertically. When the mounting shell 1 moves along the extension direction of the sword grating, the corrugated groove 801 converts the vertical undulating displacement into a horizontal buffer displacement, while allowing the mounting shell 1 to have a certain degree of vertical floating space. This adjusts the cutter head 402 and the straightening block 502 to a reference height that matches the current sword grating groove, so that the slag at the bend of the sword grating tooth tip is removed from low to high by the grinding structure. This prevents the cutter 403 from being unable to penetrate the bend of the sword grating tooth tip to clean the slag when the cutter head 402 rotates.

[0039] In some technical solutions of the present invention, the adjustment structure 9 includes two electric push rods 901 arranged in pairs. The body of the electric push rod 901 is connected to the displacement seat 802, and the telescopic end of the electric push rod 901 is connected to the mounting shell 1. When the electric push rod 901 extends or retracts, it pushes or pulls the retainer 902. The retainer 902 transmits the movement to the mounting shell 1 through the optical shaft 903 to achieve overall height adjustment. A retainer 902 is provided between the telescopic end of the electric push rod 901 and the mounting shell 1. Several optical shafts 903 are provided between the retainer 902 and the displacement seat 802. One side of the optical shaft 903 is connected to the mounting shell 1, and the other side of the optical shaft 903 extends outward after passing through the retainer 902. Each optical shaft 903 is fitted with a limiting spring 904, and a limiting ring 905 is installed on the side of the optical shaft 903 facing away from the mounting shell 1. When the mounting housing 1 is subjected to an upward impact force, it compresses the limiting spring 904 and moves along the optical axis 903 towards the cage 902, absorbing the impact energy. After the impact disappears, the mounting housing 1 returns to the preset position under the restoring force of the limiting spring 904.

[0040] The cleaning method implemented based on the aforementioned laser feeder waste cleaning device, corrugated chute 801, and adjusting structure 9 aims to achieve efficient, comprehensive, and protective slag cleaning and tooth tip straightening of the worktable sword grid with wavy, undulating grooves. The core of this method lies in the adaptive floating of the mechanical structure, ensuring that the cleaning tool maintains optimal contact and following with the sword grid surface at all times.

[0041] The steps are as follows: S1: System initialization and positioning. Install the cleaning device above or to the side of the laser cutting machine's worktable, ensuring that the device's entry and exit direction is consistent with the extension direction of the grating. Adjust the initial height using the electric push rod 901 in the adjustment structure 9, driving the mounting housing 1 to rise and fall as a whole until the cutter 403 on the cutter disc 402 in the grinding structure 4 and the straightening block 502 on the guide seat 501 precisely correspond to the two sides of the grating's tooth tips. At this time, the grinding strip 10 in the middle of the spindle 2 should be positioned above the tooth gap between adjacent grating teeth.

[0042] S2: Adaptive undulation following and dynamic cleaning start-up: The drive motor 603 starts moving the device along the extension direction of the sword grating. (This can be achieved by an external walking mechanism or by manually pushing the displacement seat 802 inside the guide frame 8). During this movement, the inherent wavy undulation of the sword grating's teeth grooves is automatically adapted through the following mechanism: undulation is converted into horizontal floating: when the height of the sword grating's teeth grooves changes, the displacement seat 802, rigidly connected to the mounting housing 1, will generate a corresponding horizontal sliding within the corrugated groove 801 of the guide frame 8. The specific curve profile of the corrugated groove 801 efficiently converts the vertical undulation displacement of the teeth grooves into the horizontal buffer displacement of the displacement seat 802.

[0043] Elastic buffering and height maintenance: At the same time, the limiting spring 904 sleeved on the optical axis 903 is compressed or released to absorb the instantaneous impact force caused by the sudden change in tooth groove, preventing the mounting shell 1 from vibrating violently. The spring force and the static support force of the electric push rod 901 work together to form a dynamic balance system, so that the mounting shell 1 and all its internal working parts can smoothly float up and down slightly with the tooth groove contour.

[0044] Continuous cleaning action: During this adaptive floating process, the drive structure 7 continuously drives the spindle 2 to rotate, causing the tool 403 to cut the slag on the side of the sword grid at high speed; at the same time, the push structure 6 works according to the preset cycle, periodically driving the straightening block 502 to extend and perform tooth tip hammering correction, and driving the grinding strip 10 to slide axially to clean the tooth gap.

[0045] S3: Dynamic Spacing Adjustment and Cooperative Operation. The periodic movement of the push structure 6 not only controls the correction action but also synchronously adjusts the spacing between the two cutter heads 402. When a thick slag accumulation area is detected or pre-set, the push structure 6 can finely adjust the position of the displacement seat 802. Through the flexibility of the buffer spring 503, the cutter 403 contacts the slag with appropriate pressure, achieving efficient scraping rather than hard impact. The cleaning and correction actions are carried out collaboratively during the floating stroke of the device without interfering with each other.

[0046] S4: Overload Protection and Reset. During the cleaning process, if the tool 403 or the straightening block 502 encounters an abnormally hard obstacle, the overload protection mechanism in the drive structure 7 will be activated, causing the long gear 702 to temporarily "slip" with the spindle 2, cutting off power transmission and protecting the tool 403 and the transmission system from damage. After the obstacle is cleared, engagement will automatically resume under the action of the reset spring 706.

[0047] S5: Repeat steps S2 to S4 for continuous operation and full coverage. The device moves continuously along the entire length of the sword grid in an adaptive undulation-following state. Because the device can fit the tooth groove contour in real time, it ensures that the tool 403, the straightening block 502 and the grinding strip 10 can play their best role in each tooth segment, without cleaning dead corners, and realizes slag cleaning and shape repair of the entire sword grid from low to high and with full coverage.

[0048] S6: After the work is completed and the reset cleaning is finished, the control drive motor 603 stops, the push structure 6 resets the displacement seat 802 to the initial width position, and the correction block 502 retracts. The entire device can be lifted off the workbench via the adjustment structure 9 for equipment maintenance or further operation.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A slag cleaning device for a laser cutting machine, characterized in that, The system includes a mounting housing with an inlet and outlet at its bottom. A main shaft is rotatably mounted inside the mounting housing. Two mounting seats are slidably mounted on the middle of the main shaft, and a grinding structure is fitted onto the outer side of each mounting seat. A connecting bracket connected to the grinding structure is provided on the outer wall of each mounting seat, with a portion of the grinding structure protruding beyond the inlet and outlet. A drive structure connected to the main shaft is located inside the mounting housing. The drive structure drives the main shaft to rotate. Guide cylinders are mounted on the opposite sidewalls of the two mounting seats, and each guide cylinder is coaxial with the main shaft. A guide seat coaxial with the main shaft is slidably mounted inside each guide cylinder. A portion of the guide seat is embedded within a guide cylinder, which contains a buffer spring connected to the guide seat. Several straightening blocks are arranged around the opposing sidewalls of the two guide seats, extending outwards after passing through their corresponding connecting frames. A pushing structure is provided within the mounting housing to synchronously drive the two guide seats to move towards or away from each other along the main shaft axis. Two sets of guiding structures are provided within the mounting housing, each slidably connected to one of the two guide seats to restrict the guide seats to move only along the main shaft axis. The pushing structure is drively connected to the driving structure.

2. The slag cleaning device for a laser cutting machine according to claim 1, characterized in that, The pushing structure includes two drive shafts installed in the mounting housing and coaxial with each other. Each drive shaft has a deflection wheel installed on its outer side wall. Each guide cylinder has a limit seat installed on its outer side wall. The limit seat has a limit channel that matches the deflection wheel. The mounting housing has a drive motor that is connected to one of the drive shafts. The mounting housing also has a transmission structure that meshes with both drive shafts.

3. The slag cleaning device for a laser cutting machine according to claim 2, characterized in that, The drive structure includes two paired drive gears, which are respectively mounted on two transmission shafts. Both ends of the main shaft are equipped with long gears, which mesh with the drive gears located on the same side.

4. The slag cleaning device for a laser cutting machine according to claim 3, characterized in that, The long gears are all slidably mounted on the outer side wall of the main shaft. The long gears are connected to the guide seats located on the same side. A guide groove is formed along the axial direction on the outer side wall of the main shaft. A guide block is slidably mounted in the guide groove. An installation groove matching the guide block is formed on the inner side wall of the long gear. A portion of the guide block is embedded in the installation groove. A return spring connected to the guide block is provided in the installation groove. A wedge-shaped surface is formed on the guide block away from the bottom of the installation groove.

5. The slag cleaning device for a laser cutting machine according to claim 2, characterized in that, The guide structure includes two guide sleeves installed on the outer wall of the guide cylinder, and a guide rod slidably disposed inside the guide sleeve and connected to the inner wall of the mounting shell.

6. The slag cleaning device for a laser cutting machine according to claim 1, characterized in that, It also includes a guide frame, on which a corrugated groove is formed in the horizontal direction on the side wall opposite to the tooth groove. A displacement seat connected to the mounting shell is slidably disposed in the groove. The guide frame is provided with an adjustment structure for driving the displacement seat to move in the vertical direction.

7. The slag cleaning device for a laser cutting machine according to claim 6, characterized in that, The adjustment structure includes two electric push rods arranged in pairs. The body of the electric push rod is connected to the displacement seat, and the telescopic end of the electric push rod is connected to the mounting shell. A retainer is provided between the telescopic end of the electric push rod and the mounting shell. A plurality of optical axes are provided between the retainer and the displacement seat. One side of the optical axis is connected to the mounting shell, and the other side of the optical axis extends outward after passing through the retainer. Each optical axis is fitted with a limiting spring, and a limiting ring is installed on the side of the optical axis away from the mounting shell.

8. A slag cleaning device for a laser feeder according to any one of claims 1-7, characterized in that, It also includes several grinding strips, which are arranged around the middle of the spindle.

9. The slag cleaning device for a laser cutting machine according to claim 8, characterized in that, The grinding strips are all slidably disposed on the outer side wall of the main shaft along the axial direction of the main shaft. A limiting groove is provided on the outer side wall of the main shaft, and a limiting block connected to the grinding strip is slidably disposed in the limiting groove. Several grinding strips are rotatably connected to two guide seats respectively.

10. A cleaning method for a slag cleaning device of a laser feeder according to any one of claims 1-9, characterized in that, The process includes the following steps: The cleaning device is installed on the upper side of the laser cutting machine's worktable via a guide frame, ensuring the device's travel direction aligns with the extension direction of the slag. The initial height of the drive mounting housing is adjusted using the electric push rod in the adjustment mechanism until the straightening blocks on the grinding structure and guide seat are positioned on both sides of the slag tooth tips. At this point, the grinding strip in the middle of the spindle is located between the tooth tips of adjacent slag sections. The slag cleaning device moves along the slag extension direction within the slide groove, and simultaneously, the drive motor is started. At the same time, the limit spring sleeved on the optical axis is compressed or released, causing the slag cleaning device to move with the slag. The corrugated tooth grooves of the grid adaptively float, while the slag cleaning device moves continuously along the entire length of the grid. The drive structure continuously drives the spindle to rotate, causing the tool to cut the slag on the side of the grid at high speed. At the same time, the push structure works according to a preset cycle, periodically driving the straightening block to extend and hammer the tips of the grid teeth to straighten them, and driving the grinding strip to slide axially to clean the tooth gaps. After the cleaning operation is completed, the drive motor is stopped, the push structure resets the guide seat to the initial width position, the straightening block is retracted, and the device is lifted as a whole by the adjustment structure to detach from the worktable for the next grid cleaning operation.

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