A slag cleaning device for a laser cutting machine

Abstract

This utility model relates to the field of metal processing technology, specifically to a slag cleaning device for laser cutting machines, designed to solve the problems of low efficiency, poor safety, and insufficient adaptability of manual slag cleaning. The device includes two mounting plates connected by a sliding structure. A grooved scraper is installed below each mounting plate, the groove engaging with a serrated support strip. The drive assembly includes a drive wheel with a positioning column, fixed to both ends of a telescopic rod I. The telescopic rod I is connected to a synchronous wheel I via a driven wheel. The synchronous wheel I drives a smaller diameter synchronous wheel II via a synchronous belt, causing the turntables at both ends of the telescopic rod II to rotate. Driven by the eccentric fixed column I and the L-shaped connecting plate, the scraper periodically oscillates to remove the slag. The mounting plate spacing is adjusted via a screw-adjustable guide rod and an internally threaded tube, adapting to different serrated strip spacings. This device achieves simultaneous movement and slag scraping, improving cleaning efficiency and versatility.

Description

Technical Field

[0001] This utility model relates to the field of metal processing technology, and in particular to a slag cleaning device for a laser cutting machine. Background Technology

[0002] When laser cutting machines process metal sheets, the high-temperature molten metal forms weld slag below the cut. This weld slag easily splatters and adheres to the serrated support strips that support the sheet. Over time, the weld slag alters the surface shape and height of the serrated support strips, resulting in uneven sheet support during subsequent cuts, affecting cutting accuracy and workpiece quality, and potentially damaging the sheet or the cutting head.

[0003] Currently, cleaning welding slag on serrated support bars mostly relies on manual cleaning. This method is not only inefficient, but also difficult to guarantee the cleaning effect, making it difficult to completely remove the welding slag from the serrated support bars. In addition, manual cleaning also poses certain safety hazards, as operators are prone to injury during the cleaning process.

[0004] Meanwhile, some cleaning devices have complex structures, high costs, and insufficient flexibility, making it difficult to adapt to serrated support bars with different spacings and failing to meet diverse usage needs.

[0005] To address the aforementioned problems, this utility model document proposes a slag cleaning device for laser cutting machines. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as low efficiency, poor effect, and safety hazards in manually cleaning weld slag from serrated support bars, as well as the complex structure, high cost, and lack of flexibility of some cleaning devices. Therefore, this invention proposes a weld slag cleaning device for laser cutting machines.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A slag cleaning device for a laser cutting machine, disposed on multiple serrated support bars within the laser cutting machine support frame, comprising:

[0009] At least two mounting plates, and multiple mounting plates are slidably engaged by a sliding connection structure;

[0010] At least two sets of cleaning components, each set of cleaning components includes a scraper, the scraper is rotatably connected to the mounting bracket, and one end of the scraper is provided with a groove that cooperates with a corresponding serrated support strip;

[0011] The drive assembly includes two drive wheels, each drive wheel having multiple positioning pins that mesh with the toothed support strip;

[0012] When the drive wheel rotates, it drives the scraper to swing, and the groove periodically rises and falls to scrape off the welding slag.

[0013] In one possible design, the drive assembly includes a telescopic rod I and a telescopic rod II. The telescopic rod I is rotatably mounted on a fixed bracket, and two drive wheels are fixedly sleeved on the outer wall of the telescopic rod I. The telescopic rod II is located above the telescopic rod I, and turntables are fixedly mounted at both ends of the telescopic rod II. The driven wheel is fixedly sleeved on the outer wall of the movable sleeve of the telescopic rod I, the synchronous wheel I is fixedly mounted on one side of the driven wheel, and the synchronous wheel II is fixedly sleeved on the outer wall of the movable sleeve of the telescopic rod II. The synchronous wheel II and the synchronous wheel I are connected by a synchronous belt drive.

[0014] In one possible design, the outer diameter of the synchronous pulley II is smaller than that of the synchronous pulley I, so that the rotational speed of the telescopic rod II is greater than that of the telescopic rod I.

[0015] In one possible design, the cleaning assembly further includes a connecting bracket and an L-shaped connecting plate. The connecting bracket is fixedly installed at the end of the scraper away from the groove. Slide grooves II are formed on both sides of the connecting bracket. The bottom end of the L-shaped connecting plate is fixedly connected to a fixing post II, and the fixing post II is slidably engaged with the slide groove II. A through groove is formed on the top of the mounting plate, and the L-shaped connecting plate is slidably connected to the through groove. The L-shaped connecting plate has a slide groove I. A fixing post I is fixedly installed on one side of the turntable. The fixing post I is located at a position off-center from the center of the turntable. The fixing post I is slidably engaged with the slide groove I to drive the scraper to swing.

[0016] In one possible design, the sliding connection structure includes a fixed sleeve and an internally threaded tube fixedly mounted on the top of one of the mounting plates, a guide rod and a screw mounted on the top of the other mounting plate, the guide rod sliding through the fixed sleeve, and the screw threadedly connected to the internally threaded tube.

[0017] In one possible design, the system also includes lifting rods and support rods, with two lifting rods slidingly passing through the mounting plate. The support rod is fixedly installed at the bottom end of the lifting rod and slides in cooperation with the top of the serrated support strip. A fixing ring is fixedly sleeved on the outer wall of the lifting rod, and a spring is sleeved on the outer wall of the lifting rod. One end of the spring is fixedly connected to the top of the fixing ring through a spring seat, and the other end is fixedly connected to the bottom of the mounting plate through a spring seat.

[0018] In one possible design, a push-pull bracket is also included, with two of the push-pull brackets fixedly mounted on the side of the mounting plate away from the support rod.

[0019] In one possible design, the sliding fit between the fixed column II and the slide groove II converts the reciprocating movement of the L-shaped connecting plate into the oscillation of the scraper.

[0020] In one possible design, the oscillation of the scraper is driven by the rotation of the drive wheel through the linkage of telescopic rod I, synchronous pulley I, synchronous belt, synchronous pulley II, telescopic rod II and turntable.

[0021] In this application, during use, the device is placed on the serrated support strip within the support frame of the laser cutting machine. The operator pushes the device using a push-pull bracket. The drive wheel rolls on the serrated support strip, and its side positioning pins engage with the recesses of the serrated support strip, providing driving force and preventing slippage. The rotation of the drive wheel is transmitted to the telescopic rod I, causing the telescopic rod I to rotate and drive the driven wheel. The driven wheel drives the synchronous wheel I to rotate, and the synchronous wheel I drives the synchronous wheel II via a synchronous belt. Because the outer diameter of the synchronous wheel II is smaller than that of the synchronous wheel I, the synchronous wheel II rotates at a higher speed. The synchronous wheel II drives the telescopic rod II to rotate, and the turntables at both ends of the telescopic rod II rotate accordingly.

[0022] When the turntable rotates, the fixed column I at its eccentric position slides within the groove I of the L-shaped connecting plate. The L-shaped connecting plate is constrained by the through groove of the mounting plate; the movement of the fixed column I forces the L-shaped connecting plate to reciprocate within the through groove, thus achieving continuous lifting and lowering of the L-shaped connecting plate. Meanwhile, the fixed column II at the bottom of the L-shaped connecting plate slides within the grooves II on both sides of the scraper's connecting bracket. Through the cooperation of the fixed column II and the grooves II, the lifting and lowering motion of the L-shaped connecting plate can be converted into the continuous oscillation of the scraper around the hinge point of the mounting bracket. The grooved end of the scraper periodically rises and falls, and when the device moves, it cooperates with the serrated support strip to scrape away welding slag.

[0023] If the device is obstructed when moving forward or scraping away stubborn welding slag, the operator can ensure that one end of the scraper is against the bottom of the welding slag. At this time, following the traditional method of using the equipment, press and pull the bracket to lower one end of the device. Then, the end of the device with the scraper can be manually lifted, and the scraper can be used to lift the welding slag.

[0024] During use, the support rod remains in sliding contact with the weld slag at the top of the serrated support bar to provide support. The lifting rod slides within the mounting plate, and a spring acts between the fixing ring and the mounting plate, allowing the support rod to adapt to changes in the height of the serrated support bar and maintain pressure, ensuring smooth movement.

[0025] When it is necessary to clean the serrated support bars with different spacing, simply rotate the screw. The screw engages with the internal threaded pipe, and the guide rod slides within the fixed sleeve, allowing the two mounting plates to be adjusted together. This aligns the drive wheel, support rod, and scraper with the new spacing, thus better removing the weld slag from the top of the corresponding serrated support bar.

[0026] Beneficial effects: In this utility model, the welding slag cleaning device for a laser cutting machine is provided with two sets of cleaning components. Each mounting plate has a scraper underneath, which is rotatably connected to the mounting bracket. One end of the scraper has a groove that cooperates with the serrated support strip. During the movement of the device, the scraper can periodically lift and fall to scrape off the welding slag adhering to the serrated support strip, which can effectively remove the welding slag and ensure the normal operation and cutting accuracy of the laser cutting machine.

[0027] In this utility model, the welding slag cleaning device for a laser cutting machine utilizes a drive assembly. A drive wheel, rotatably positioned below the mounting plate, has a side positioning post that meshes with the recessed part of a serrated support strip. This provides driving force to move the device along the serrated support strip and also provides anti-slip functionality. The drive wheel's rotation drives the telescopic rod I to rotate, which in turn, through the driven wheel, synchronous wheel I, synchronous belt, and synchronous wheel II, causes the telescopic rod II to rotate. The outer diameter of synchronous wheel II is smaller than that of synchronous wheel I, ensuring that the speed of telescopic rod II is greater than that of telescopic rod I, providing suitable power for the subsequent oscillation of the scraper. When the turntables at both ends of the telescopic rod II rotate, the L-shaped connecting plate reciprocates due to the engagement of the eccentrically positioned fixed post I with the sliding groove I of the L-shaped connecting plate, and the sliding restriction between the L-shaped connecting plate and the through groove of the mounting plate. The fixed post II at the bottom of the L-shaped connecting plate slides within the sliding groove II of the scraper connecting bracket, converting the reciprocating movement into the oscillation of the scraper around the hinge point of the mounting bracket. This achieves the linkage between the drive wheel's rotation and the scraper's oscillation, improving the device's automation level and work efficiency.

[0028] In this utility model, the slag cleaning device for a laser cutting machine features a sliding connection structure that allows for adjustable distance between the two mounting plates. By rotating the screw, the threaded engagement between the screw and the internal threaded tube, along with the sliding of the guide rod within the fixed sleeve, allows for easy adjustment of the distance between the two mounting plates. This enables the drive wheel, support rod, and scraper to correspond to serrated support bars with different spacings, thus better removing the slag from the top of the corresponding serrated support bars and enhancing the device's versatility and adaptability.

[0029] In this utility model, a welding slag cleaning device for a laser cutting machine has two mounting plates with lifting rods on the side away from the drive wheel. A support rod is installed at the bottom of the lifting rod and slides with the top of the serrated support bar to provide support for one end of the device. A spring is sleeved on the outer wall of the lifting rod. The spring acts between the fixed ring and the mounting plate, which allows the support rod to adapt to the height change of the serrated support bar and maintain pressure, ensuring that the device remains stable during movement and improving the stability of the device operation.

[0030] In this invention, the device effectively removes welding slag from the sawtooth support strip through the periodic oscillation of the scraper, resulting in high cleaning efficiency and ensuring the accuracy of the cutting machine. The drive wheel and transmission mechanism work together to achieve automatic scraping, improving efficiency. The sliding connection structure allows for adjustment of the mounting plate spacing, facilitating adaptation to sawtooth strip layouts with different spacings. The elastic support mechanism maintains stable operation. Overall, the device enhances its efficiency and versatility, reducing maintenance costs. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the working state structure of a slag cleaning device for a laser cutting machine proposed in this utility model.

[0032] Figure 2 This is a three-dimensional structural schematic diagram of a slag cleaning device for a laser cutting machine proposed in this utility model;

[0033] Figure 3 This is a cross-sectional structural schematic diagram of a slag cleaning device for a laser cutting machine proposed in this utility model;

[0034] Figure 4 This is a schematic diagram showing the disassembled structure of a slag cleaning device for a laser cutting machine according to the present invention.

[0035] Figure 5 This is a schematic diagram of the drive assembly structure of a slag cleaning device for a laser cutting machine proposed in this utility model;

[0036] Figure 6 This is a schematic diagram of the cleaning component structure of a slag cleaning device for a laser cutting machine proposed in this utility model;

[0037] Figure 7 This is a schematic diagram of the mounting plate connection structure of a slag cleaning device for a laser cutting machine proposed in this utility model.

[0038] In the diagram: 1. Laser cutting machine support frame; 2. Serrated support strip; 3. Mounting plate; 4. Fixed bracket; 5. Drive wheel; 6. Driven wheel; 7. Synchronous wheel I; 8. Synchronous wheel II; 9. Scraper; 10. Support rod; 11. Positioning column; 12. Telescopic rod I; 13. Telescopic rod II; 14. Turntable; 15. Fixed column I; 16. L-shaped connecting plate; 17. Slide groove I; 18. Fixed column II; 19. Mounting bracket; 20. Groove; 21. Connecting bracket; 22. Slide groove II; 23. Through groove; 24. Fixed sleeve; 25. Guide rod; 26. Internally threaded tube; 27. Screw; 28. Lifting rod; 29. ​​Fixed ring; 30. Spring; 31. Push-pull bracket. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0040] In one embodiment: Refer to Figure 1-7 A welding slag cleaning device is installed on multiple parallel serrated support bars 2 inside the support frame 1 of a laser cutting machine, and includes: two mounting plates 3, a cleaning component, a drive component, and a sliding adjustment mechanism.

[0041] In this embodiment, the spacing between the two mounting plates 3 is adjusted through a sliding connection structure.

[0042] Specifically, the sliding connection structure includes a guide assembly and a distance adjustment assembly mounted on the mounting plate 3. The guide assembly is used to guide one of the mounting plates 3 to move horizontally along the width direction of the mounting plate 3 to the other mounting plate 3 in parallel. The distance adjustment assembly is used to adjust the interval distance between the two mounting plates 3 and to lock them.

[0043] The guiding component includes a fixed sleeve 24 mounted on one of the mounting plates 3 and a guide rod 25 mounted on the other mounting plate 3. The guide rod 25 is configured to cooperate with the fixed sleeve 24, and the guide rod 25 slides through the fixed sleeve 24 to form a guiding engagement. The guide rod 25 is always located inside the fixed sleeve 24, and the axes of the guide rod 25 and the fixed sleeve 24 extend along the width direction of the mounting plate 3. In some specific embodiments, the fixed sleeve 24 is long enough, and the guide rod 25 is always located inside the fixed sleeve 24 by adjusting the length of the distance adjustment component, so as to avoid the guiding function of the guiding component from failing.

[0044] The distance adjustment assembly includes an internally threaded tube 26 mounted on one of the mounting plates 3 and a screw 27 rotatably mounted on the other mounting plate 3. The screw 27 is configured to cooperate with the internally threaded tube 26 and is threadedly connected to it. In actual use, by rotating the screw 27, the rotational motion is converted into linear motion through the threaded engagement with the internally threaded tube 26, so that the mounting plate 3 connected to the internally threaded tube 26 moves closer to or further away from the mounting plate connected to the screw 27. During the movement, the guide rod 25 is always located within the fixed sleeve 24. By rotating the screw 27, the two mounting plates 3 can be driven to move relative to each other along the axial direction of the guide rod 25. By adjusting the interval between the two mounting plates 3, the relative distance between the cleaning components below the mounting plates 3 can be changed, thereby allowing the device to adapt to serrated support bars 2 with different spacing.

[0045] In some specific embodiments, the screw 27 is rotatably connected to the mounting plate 3 via a rotating mounting base.

[0046] In some specific embodiments, a handwheel is installed at one end of the screw 27, which allows the operator to easily rotate it. In some specific embodiments, a rotary drive component can also be installed as a power source to drive the screw 27 to rotate, which will not be elaborated here.

[0047] In this embodiment, the cleaning components are symmetrically arranged below the two mounting plates 3.

[0048] Each cleaning assembly includes a scraper 9, which is rotatably connected to the bottom of the mounting plate 3 via a mounting bracket 19. Specifically, two mounting brackets 19 are welded to the bottom of the mounting plate 3, and the middle of the scraper 9 is hinged to the mounting bracket 19 via a pin, allowing the scraper 9 to swing around the hinge point.

[0049] A straight groove 20 is provided at one end of the scraper 9. The groove 20 matches the serrated support strip 2, which makes it easy for the scraper 9 to be locked on the outside of the serrated support strip 2.

[0050] When the scraper 9 swings, the edge of the groove 20 can scrape off the welding slag attached to the top of the serrated support strip 2.

[0051] The other end of the scraper 9 is linked to the drive assembly through the connecting bracket 21. The connecting bracket 21 has sliding grooves II 22 on both sides. An L-shaped connecting plate 16 is slidably arranged inside the connecting bracket 21. The bottom of the L-shaped connecting plate 16 is slidably engaged with the sliding groove II 22 through a fixed through-hole fixed post II 18. The top of the L-shaped connecting plate 16 extends upward through the through groove 23 at the top of the mounting plate 3.

[0052] In this embodiment, the drive assembly includes a telescopic rod transmission system and a drive wheel 5 system.

[0053] The telescopic rod transmission system consists of telescopic rod I12 and telescopic rod II13, both with identical structures, including a fixed rod and a movable sleeve. The outer wall of the fixed rod is equipped with a guide strip, which cooperates with a guide groove on the inner wall of the movable sleeve to guide the sliding between the fixed rod and the movable sleeve. Both ends of telescopic rod I12 are rotatably connected to the bottom of mounting plate 3 via fixed brackets 4. A driven wheel 6 is fixedly fitted onto the outer wall of its movable sleeve, and a synchronous wheel I7 is welded to one side of the driven wheel 6. Telescopic rod II13 is located directly above telescopic rod I12 and is rotatably connected to mounting plate 3 via a bracket. A synchronous wheel II8 is fixedly fitted onto the outer wall of its movable sleeve, and synchronous wheel II8 is connected to synchronous wheel I7 via a synchronous belt drive. To ensure the speed difference, the outer diameter of synchronous pulley II8 is smaller than that of synchronous pulley I7, which can ensure that it can drive scraper 9 to swing more frequently. The equipment moves along the sawtooth support bar 2 from the direction without welding slag to the direction with welding slag. When it moves forward, the drive wheel 5 is always in contact with the tooth surface of the sawtooth support bar 2 with no welding slag or with the welding slag cleaned.

[0054] In this embodiment, the drive wheel 5 system includes two drive wheels 5, which are respectively fixedly sleeved on the fixed rod and the end of the movable sleeve of the telescopic rod I 12. Six positioning posts 11 are evenly welded around the circumference of the drive wheel 5. The positioning posts 11 form an intermittent fit with the tooth grooves of the serrated support strip 2, allowing the device to move along the serrated support strip 2. Turntables 14 are welded to both ends of the telescopic rod II 13. Fixed posts I 15 are welded to the turntables 14 off-center. These fixed posts are inserted into the sliding groove I 17 opened at one end of the L-shaped connecting plate 16. When the telescopic rod II 13 rotates, the turntables 14 drive the L-shaped connecting plate 16 to move back and forth through the fixed posts I 15. The L-shaped connecting plate 16 can drive the scraper 9 to swing through the connecting bracket 21, thereby realizing the scraping action of welding slag. The distance between the fixed column I15 and the center of the turntable 14 is related to the distance of the L-shaped connecting plate 16 rising and falling, which also affects the swing angle of the scraper 9. By changing the position of the fixed column I15 on the corresponding turntable 14 within a suitable range (specifically by replacing different turntables 14), different scrapers 9 can have different swing angles.

[0055] This application can be used in the field of metal processing technology, or in other fields applicable to this application.

[0056] In another embodiment: Reference Figure 3 , 4 7. A slag cleaning device for a laser cutting machine, which is applied to the field of metal processing technology;

[0057] In this embodiment, to enhance the stability of the device, a support mechanism is provided on the side of the mounting plate 3 away from the drive wheel 5. The support mechanism includes a lifting rod 28 that slides through the mounting plate 3, with a support rod 10 welded to the bottom of the lifting rod 28. The support rod 10 engages with the surface of the slag not yet cleaned at the top of the serrated support bar 2. A spring 30 is fitted onto the outer wall of the lifting rod 28, and a fixing ring 29 is fixedly fitted onto the outer wall of the lifting rod 28. Both ends of the spring 30 are fixedly connected to the top of the fixing ring 29 and the bottom of the mounting plate 3 respectively through spring seats, so that the support rod 10 always remains in contact with the slag at the top of the serrated support bar 2, thereby providing support for one end of the device.

[0058] In this embodiment, push-pull brackets 31 are welded to the side of both mounting plates 3 away from the support rod 10, which facilitates the operator to move the device.

[0059] The working principle and usage process of this technical solution are as follows: During use, the device is placed on the serrated support bar 2 within the laser cutting machine support frame 1. The operator pushes the device using the push-pull bracket 31. The drive wheel 5 rolls on the serrated support bar 2, and its side positioning post 11 engages with the recess of the serrated support bar 2, providing driving force and preventing slippage. The rotation of the drive wheel 5 is transmitted to the telescopic rod I 12, causing it to rotate and drive the driven wheel 6. The driven wheel 6 drives the synchronous wheel I 7 to rotate, and the synchronous wheel I 7 drives the synchronous wheel II 8 via a synchronous belt. Because the outer diameter of the synchronous wheel II 8 is smaller than that of the synchronous wheel I 7, the synchronous wheel II 8 rotates at a higher speed. The synchronous wheel II 8 drives the telescopic rod II 13 to rotate, and the turntables 14 at both ends of the telescopic rod II 13 rotate accordingly.

[0060] When the turntable 14 rotates, its eccentrically positioned fixed post I 15 slides within the groove I 17 of the L-shaped connecting plate 16. The L-shaped connecting plate 16 is constrained by the through groove 23 of the mounting plate 3. The movement of the fixed post I 15 forces the L-shaped connecting plate 16 to reciprocate within the through groove 23, thus achieving continuous lifting and lowering of the L-shaped connecting plate 16. At this time, the fixed post II 18 at the bottom of the L-shaped connecting plate 16 slides within the grooves II 22 on both sides of the connecting bracket 21 of the scraper 9. Through the cooperation of the fixed post II 18 and the grooves II 22, the lifting and lowering motion of the L-shaped connecting plate 16 can be converted into the continuous oscillation of the scraper 9 around the hinge point of the mounting bracket 19. The groove 20 end of the scraper 9 periodically rises and falls, and when the device moves, it cooperates with the serrated support strip 2 to scrape away welding slag.

[0061] If the device is obstructed when moving forward or scraping off stubborn welding slag, the operator can ensure that one end of the scraper 9 is against the bottom of the welding slag end. At this time, according to the conventional equipment usage method, press and pull the bracket 31 to lower one end of the device. Then, the end of the device with the scraper 9 can be manually lifted. The scraper 9 can be used to lift the welding slag.

[0062] During use, the support rod 10 always slides in contact with the weld slag at the top of the serrated support bar 2 to provide support. The lifting rod 28 slides within the mounting plate 3, and the spring 30 acts between the fixing ring 29 and the mounting plate 3, allowing the support rod 10 to adapt to changes in the height of the serrated support bar 2 and maintain pressure, ensuring smooth movement.

[0063] When it is necessary to clean the serrated support strips 2 with different spacing, simply rotate the screw 27. The screw 27 is threaded into the internal threaded tube 26, and the guide rod 25 slides in the fixed sleeve 24, which can jointly adjust the spacing between the two mounting plates 3. This allows the drive wheel 5, support rod 10, and scraper 9 to correspond to the new spacing position, thereby better completing the removal of welding slag from the top of the corresponding serrated support strip 2.

[0064] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0065] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A slag cleaning device of a laser cutting machine, provided on a plurality of sawtooth support bars (2) in a laser cutting machine support frame (1) of a laser cutting machine, characterized in that, include: At least two mounting plates (3), and multiple mounting plates (3) are slidably connected by a sliding connection structure; At least two sets of cleaning components, each set of cleaning components includes a scraper (9), the scraper (9) is rotatably connected to the mounting bracket (19), and one end of the scraper (9) is provided with a groove (20) to cooperate with a corresponding serrated support strip (2); The drive assembly includes two drive wheels (5), each drive wheel (5) having multiple positioning pins (11) that mesh with the serrated support bar (2); When the drive wheel (5) rotates, it drives the scraper (9) to swing, and the groove (20) periodically rises and falls to scrape off the welding slag.

2. The slag cleaning device of a laser cutting machine according to claim 1, characterized in that, The drive assembly includes a telescopic rod I (12) and a telescopic rod II (13). The telescopic rod I (12) is rotatably mounted on a fixed bracket (4), and two drive wheels (5) are fixedly sleeved on the outer wall of the telescopic rod I (12). The telescopic rod II (13) is located above the telescopic rod I (12), and turntables (14) are fixedly mounted at both ends of the telescopic rod II (13). The driven wheel (6) is fixedly sleeved on the outer wall of the movable sleeve of the telescopic rod I (12), the synchronous wheel I (7) is fixedly mounted on one side of the driven wheel (6), and the synchronous wheel II (8) is fixedly sleeved on the outer wall of the movable sleeve of the telescopic rod II (13). The synchronous wheel II (8) and the synchronous wheel I (7) are connected by a synchronous belt drive.

3. The slag cleaning device for a laser cutting machine according to claim 2, characterized in that, The outer diameter of the synchronous wheel II (8) is smaller than that of the synchronous wheel I (7), so that the rotational speed of the telescopic rod II (13) is greater than that of the telescopic rod I (12).

4. The slag cleaning device for a laser cutting machine according to claim 2, characterized in that, The cleaning assembly also includes a connecting bracket (21) and an L-shaped connecting plate (16). The connecting bracket (21) is fixedly installed at the end of the scraper (9) away from the groove (20). The connecting bracket (21) has sliding grooves II (22) on both sides. The bottom end of the L-shaped connecting plate (16) is fixedly connected to a fixing post II (18). The fixing post II (18) and the sliding groove II (22) are slidably engaged. The top of the mounting plate (3) has a through groove (23). The L-shaped connecting plate (16) is slidably connected to the through groove (23). The L-shaped connecting plate (16) has a sliding groove I (17). The rotating disk (14) has a fixing post I (15) fixedly installed on one side. The fixing post I (15) is located at a position off-center from the rotating disk (14). The fixing post I (15) and the sliding groove I (17) are slidably engaged to drive the scraper (9) to swing.

5. The slag cleaning device for a laser cutting machine according to claim 1, characterized in that, The sliding connection structure includes a fixed sleeve (24) and an internally threaded tube (26) fixedly installed on the top of one of the mounting plates (3), a guide rod (25) and a screw (27) installed on the top of the other mounting plate (3), the guide rod (25) slidingly passing through the fixed sleeve (24), and the screw (27) being threadedly connected to the internally threaded tube (26).

6. The slag cleaning device for a laser cutting machine according to claim 1, characterized in that, It also includes a lifting rod (28) and a support rod (10). The two lifting rods (28) slide through the mounting plate (3). The support rod (10) is fixedly installed at the bottom end of the lifting rod (28). The support rod (10) slides with the top of the serrated support strip (2). The fixing ring (29) is fixedly sleeved on the outer wall of the lifting rod (28). The spring (30) is sleeved on the outer wall of the lifting rod (28). One end of the spring (30) is fixedly connected to the top of the fixing ring (29) through the spring seat, and the other end is fixedly connected to the bottom of the mounting plate (3) through the spring seat.

7. The slag cleaning device for a laser cutting machine according to claim 1, characterized in that, It also includes push-pull brackets (31), two of which are fixedly installed on the side of the mounting plate (3) away from the support rod (10).

8. The slag cleaning device for a laser cutting machine according to claim 4, characterized in that, The sliding fit between the fixed column II (18) and the slide groove II (22) converts the reciprocating movement of the L-shaped connecting plate (16) into the swing of the scraper (9).

9. The slag cleaning device for a laser cutting machine according to any one of claims 1 to 8, characterized in that, The oscillation of the scraper (9) is driven by the rotation of the drive wheel (5) through the linkage of the telescopic rod I (12), the synchronous wheel I (7), the synchronous belt, the synchronous wheel II (8), the telescopic rod II (13), and the turntable (14).

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