Laser cutting device and method based on automobile brake pad steel backing production

Abstract

The invention belongs to the field of laser cutting devices, and particularly relates to a laser cutting device and method based on automobile brake pad steel backing production. An adjusting table is movably connected to the top end of the device lower body, a movable cutting table is movably connected to the top end of the adjusting table, and a filtering protection mechanism is arranged on the outer side of the movable cutting table. Through the design of the filtering protection mechanism, the functions of automatically collecting poisonous gas and harmful metal particles and filtering and discharging the poisonous gas and the harmful metal particles are achieved, and the problem that an existing device is not provided with an assembly capable of collecting and filtering smoke generated by cutting in the laser cutting process is solved; the problems that poisonous gas and harmful metal particles can be generated during laser cutting, if the poisonous gas and the harmful metal particles are not collected, filtered and discharged, and operators inhale smoke containing the metal particles for a long time, the respiratory system can be seriously damaged are solved, and protection on the workers is improved.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment, specifically a laser cutting device and method based on the production of automotive brake pad steel backing. Background Technology

[0002] The steel backing of automotive brake pads is a crucial metal structural component in the brake pad assembly. It acts as the steel skeleton of the brake pad, with two main functions: first, to provide support and a solid base for the internal friction material; and second, to transmit force, reliably transferring the enormous braking force generated during braking to the vehicle calipers and wheel hubs. It not only ensures structural stability and safety during braking, but its mounting holes and positioning holes also ensure that the entire brake pad can be precisely fixed in place.

[0003] A specific laser cutting device and method based on the production of automotive brake pad steel backing can be found in application number CN202422277537.4, which includes a frame, a first drive assembly, a mounting platform, a second drive assembly, and a laser module. In this embodiment, when cutting scrap metal wire, a bobbin with the scrap metal wire wound around it is mounted on the mounting platform to fix the bobbin. Then, the first drive assembly drives the mounting platform to move, aligning the laser module with the initial cutting position of the scrap metal wire. At the start of cutting, the first drive assembly drives the mounting platform and the bobbin to reciprocate along a first direction, allowing the laser module to quickly and thoroughly cut the scrap metal wire along the first direction. Simultaneously, as the thickness of the scrap metal wire gradually decreases during cutting, the second drive assembly drives the laser module to approach the scrap metal wire along a second direction, ensuring the laser module is focused on the scrap metal wire, thus guaranteeing the cutting effect and improving cutting efficiency.

[0004] The aforementioned device does not include a component for collecting and filtering the fumes generated during laser cutting. Since laser cutting produces toxic gases and harmful metal particles, if these are not collected, filtered, and discharged, operators will suffer serious damage to their respiratory system from long-term inhalation of fumes containing metal particles. Therefore, to address the above problems, a laser cutting device and method based on the production of automotive brake pad steel backing is proposed. Summary of the Invention

[0005] To address the problem that existing devices do not include components for collecting and filtering the fumes generated during laser cutting, which produces toxic gases and harmful metal particles, and the fact that operators can severely damage their respiratory systems by inhaling fumes containing metal particles over a long period of time, this invention proposes a laser cutting device and method based on the production of automotive brake pad steel backing.

[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a laser cutting device based on the production of automotive brake pad steel backing, comprising a lower body of the device; an adjustment table is movably connected to the top of the lower body of the device, a movable cutting table is movably connected to the top of the adjustment table, and a filter protection mechanism is provided on the outside of the movable cutting table.

[0007] The filter protection mechanism includes a fan body, which is set above the movable cutting table. The left end of the fan body is fixedly connected to one end of the support frame, and the other end of the support frame is fixedly connected to the movable cutting table. The right end of the fan body is fixedly connected to the motor. The left end of the motor passes through the fan body and reaches the inside of the fan body to be fixedly connected to the turbine. The upper and lower ends of the turbine are also fixedly connected to fixed platforms. The left and right sides inside the fixed platforms are also fitted with first moving rods, and the fixed platforms are slidably connected to the first moving rods. One end of the first moving rod is fixedly connected to one end of the scraper, and the other end of the scraper abuts against the inner wall of the fan body.

[0008] Preferably, the other end of the first moving rod is fixedly connected to the limiting block, and a first return spring is sleeved on the outside of the first moving rod. One end of the first return spring is fixedly connected to the fixed platform, and the other end of the first return spring is fixedly connected to the limiting block.

[0009] Preferably, the front end of the fan body is fixedly connected to the rear end of the first connecting pipe, the bottom end of the first connecting pipe is fixedly connected to the top end of the connector, the bottom end of the connector is provided with a filter element, the top end of the filter element is fixedly connected to the bottom end of the sealing block, the top end of the sealing block is inserted into the bottom end of the connector, and the sealing block is slidably connected to the connector.

[0010] Preferably, a fan blade head is provided inside the connector near the upper position, the bottom end of the fan blade head is fixedly connected to the top end of the transmission rod, the bottom end of the transmission rod is fixedly connected to the top end of the cleaning brush, and the bottom end of the cleaning brush abuts against the top end of the filter element.

[0011] Preferably, the outer side of the transmission rod near the middle position is fixedly connected to the inner wall of the rotating block, a sleeve block is sleeved on the outer side of the rotating block, and the sleeve block is rotatably connected to the rotating block. The outer side of the sleeve block is fixedly connected to the inner wall of the connector.

[0012] Preferably, the rear end of the fan body is fixedly connected to the front end of the second connecting pipe, the bottom end of the second connecting pipe passes through the movable cutting table to reach the movable cutting table, and an anti-blocking plate is provided at the bottom end of the second connecting pipe. The front and rear ends of the anti-blocking plate are also fixedly connected to the first fixing block. The top end of the first fixing block is fixedly connected to the bottom end of the magnetic insertion rod. The top end of the magnetic insertion rod is inserted into the second fixing block, and the magnetic insertion rod is magnetically connected to the second fixing block. The second fixing block is fixedly connected to the outer side of the second connecting pipe near the bottom end. The side end of the second connecting pipe is fixedly connected to the side end of the fixing frame. The top end of the fixing frame is fixedly connected to the bottom end of the movable cutting table.

[0013] Preferably, the left and right ends of the connector near the lower position are also fixedly connected to a third fixing block. The third fixing block has an insertion block on its side. A second moving rod is inserted inside the insertion block and is slidably connected to the insertion block. One end of the second moving rod is fixedly connected to the pressing plate, and the other end of the second moving rod is fixedly connected to one end of the second return spring. The other end of the second return spring is fixedly connected to the inner wall of the insertion block.

[0014] Preferably, the third fixing block also has guide grooves at both ends, and the guide grooves are interconnected with the interior of the insert block. The second moving rod is also fixedly connected to one end of a positioning rod at both ends. A sleeve is fitted on the outer side of the bottom end of the third fixing block, and the third fixing block is slidably connected to the sleeve. The other end of the positioning rod is also inserted into the guide groove and the sleeve, and the positioning rod is also slidably connected to the guide groove and the sleeve. The sleeve is fixedly connected to the outer side of the filter element.

[0015] Preferably, the top of the sleeve is fixedly connected to the bottom of the positioning rod, the top of the positioning rod is inserted into the bottom of the third fixing block, and the positioning rod is slidably connected to the third fixing block.

[0016] Preferably, a laser cutting method for producing automotive brake pad steel backing includes the following steps:

[0017] S1: Start the motor. When the motor starts, it drives the turbine inside the fan body to rotate. When the turbine rotates, it will generate suction force to draw the smoke and dust generated during cutting into the fan body through the second connecting pipe. The anti-clogging plate will block larger impurities to prevent them from being accidentally sucked in and causing blockage. The smoke and dust that are sucked in will be transported to the connector through the first connecting pipe and discharged after being filtered by the filter. The sealing block at the top of the filter is inserted into the connector to activate the sealing effect and prevent smoke and dust from being discharged in the gaps.

[0018] S2: When the smoke and dust are transported to the inside of the connector through the first connecting pipe, the generated wind energy will drive the fan blade head and the transmission rod to rotate synchronously. The rotation of the transmission rod will drive the bottom end of the cleaning brush to rotate and scrape along the top of the filter element, thereby preventing the filter element from clogging during filtration. At the same time, when the transmission rod rotates, it will drive the rotating block to rotate along the inside of the sleeve block.

[0019] S3: When the turbine rotates, it also drives the scraper to rotate and scrape against the inner wall of the blower body to prevent dust particles from sticking to the inner wall of the blower body. When the scraper wears out, under the rebound force of the first return spring, it automatically pushes the first moving rod and the scraper to move, and drives the scraper to always press against the inner wall of the blower body.

[0020] S4: Press the left and right pressure plates of the connector inward, which will cause the second moving rod and the second return spring to move along the insert block at the same time. When the second moving rod moves, it will cause the positioning rod to move along the guide groove and the inside of the sleeve box until the positioning rod is completely inside the desulfurization sleeve box. Then pull the filter element down. When the filter element moves down, it will cause the sleeve box to move down along the outside of the third fixing block until it is completely disengaged. At the same time, it will cause the positioning insert rod to move outward along the bottom of the third fixing block until it is completely disengaged.

[0021] The advantages of this invention are:

[0022] 1. This invention, through the structural design of the filter protection mechanism, realizes the function of automatically collecting and filtering out toxic gases and harmful metal particles. It solves the problem that existing devices do not have components for collecting and filtering the fumes generated during laser cutting. Since toxic gases and harmful metal particles are generated during laser cutting, if they are not collected, filtered and discharged, operators will suffer serious damage to their respiratory system if they inhale fumes containing metal particles for a long time. This invention improves the protection of workers.

[0023] 2. Through the structural design of the filter protection mechanism, this invention enables the surface of the filter element to be cleaned. This solves the problem that if no component is provided for cleaning the surface of the filter element, the filter element is prone to clogging during long-term filtration, and the filtration effect will be reduced if the filter element is not cleaned in time. This invention improves the filtration effect.

[0024] 3. Through the structural design of the filter protection mechanism, this invention enables easy removal and replacement of the filter element, solving the problem that if there is no component for quick disassembly, the filter element cannot be easily replaced individually after long-term use when it ages or is damaged, thus reducing work efficiency and improving convenience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the first structure of the filter protection mechanism of the present invention;

[0029] Figure 4 This is a schematic diagram of the second structure of the filter protection mechanism of the present invention;

[0030] Figure 5 This is a schematic diagram of the third structure of the filter protection mechanism of the present invention;

[0031] Figure 6 This is a schematic diagram of the fourth structure of the filter protection mechanism of the present invention;

[0032] Figure 7 This is a schematic diagram of the fifth structure of the filter protection mechanism of the present invention;

[0033] Figure 8 This is a schematic diagram of the sixth structure of the filter protection mechanism of the present invention;

[0034] Figure 9 This is a schematic diagram of the seventh structure of the filter protection mechanism of the present invention;

[0035] Figure 10 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0036] Figure 11 For the present invention Figure 4 Enlarged structural diagram at point B;

[0037] Figure 12 For the present invention Figure 5 Enlarged structural diagram at point C;

[0038] Figure 13 For the present invention Figure 6 Enlarged structural diagram at point D.

[0039] In the diagram: 1. Lower main body of the device; 2. Adjustment platform; 3. Moving cutting table; 10. Fan body; 11. Support frame; 12. Motor; 13. Turbine; 14. Fixed platform; 15. First moving rod; 16. Scraper; 17. Limiting block; 18. First return spring; 19. First connecting pipe; 20. Connector; 21. Filter element; 22. Sealing block; 23. Fan blade head; 24. Transmission rod; 25. Cleaning brush; 26. Rotating block; 27. Sleeve block; 28. Second connecting pipe; 29. ​​Anti-blocking plate; 30. Fixed frame; 31. First fixed block; 32. Second fixed block; 33. Magnetic insertion rod; 34. Third fixed block; 35. Insertion block; 36. Second moving rod; 37. Pressing plate; 38. Second return spring; 39. Guide groove; 40. Positioning rod; 41. Sleeve box; 42. Positioning insertion rod. Detailed Implementation

[0040] 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.

[0041] Example 1

[0042] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 10 , Figure 11 , Figure 12 and Figure 13 As shown, a laser cutting device based on the production of automotive brake pad steel backing includes a lower body 1; an adjustment table 2 is movably connected to the top of the lower body 1, a movable cutting table 3 is movably connected to the top of the adjustment table 2, and a filter protection mechanism is provided on the outside of the movable cutting table 3.

[0043] The filter protection mechanism includes a fan body 10, which is positioned above the movable cutting table 3. The left end of the fan body 10 is fixedly connected to one end of a support frame 11, and the other end of the support frame 11 is fixedly connected to the movable cutting table 3. The right end of the fan body 10 is fixedly connected to a motor 12. The left end of the motor 12 passes through the fan body 10 and reaches the interior of the fan body 10, where it is fixedly connected to a turbine 13. Fixed platforms 14 are also fixedly connected to the upper and lower ends of the turbine 13. First moving rods 15 are also fitted onto the left and right sides inside the fixed platforms 14, and these first moving rods 15 are slidably connected to the fixed platforms 14. The first moving rods 15 are circular rods, with one end connected to one end of a scraper 16. The scraper 16 is fixedly connected, with the other end abutting against the inner wall of the fan body 10; the other end of the first moving rod 15 is fixedly connected to the limiting block 17, and a first return spring 18 is sleeved on the outside of the first moving rod 15. One end of the first return spring 18 is fixedly connected to the fixed platform 14, and the other end of the first return spring 18 is fixedly connected to the limiting block 17, which is circular; the front end of the fan body 10 is fixedly connected to the rear end of the first connecting pipe 19, and the bottom end of the first connecting pipe 19 is fixedly connected to the top end of the connector 20. A filter element 21 is provided at the bottom end of the connector 20, and the top end of the filter element 21 is fixedly connected to the bottom end of the sealing block 22. The top end of the sealing block 22 is inserted into the bottom end of the connector 20, and the sealing block... The 22-sliding connection includes a connector 20, and the sealing block 22 is made of rubber. A fan blade 23 is located near the top inside the connector 20. The bottom end of the fan blade 23 is fixedly connected to the top end of the transmission rod 24, and the bottom end of the transmission rod 24 is fixedly connected to the top end of the cleaning brush 25. The transmission rod 24 is a circular rod design. The bottom end of the cleaning brush 25 abuts against the top end of the filter element 21. The outer side of the transmission rod 24 near the middle is fixedly connected to the inner wall of the rotating block 26. A sleeve block 27 is fitted onto the outer side of the rotating block 26, and the rotating block 26 is rotatably connected to the sleeve block 27. The inner wall of the sleeve block 27 is circular, and the outer side of the sleeve block 27 is fixedly connected to the inner wall of the connector 20. The rear end of the fan body 10 is connected to the second connecting pipe 28. The front end is fixedly connected, and the bottom end of the second connecting pipe 28 passes through the movable cutting table 3 to reach the movable cutting table 3. The bottom end of the second connecting pipe 28 is provided with an anti-blocking plate 29. The front and rear ends of the anti-blocking plate 29 are also fixedly connected with the first fixing block 31. The top end of the first fixing block 31 is fixedly connected to the bottom end of the magnetic rod 33. The top end of the magnetic rod 33 is inserted into the second fixing block 32, and the magnetic rod 33 is magnetically connected to the second fixing block 32. The magnetic rod 33 is a round rod design. The second fixing block 32 is fixedly connected to the outer side of the second connecting pipe 28 near the bottom end. The side end of the second connecting pipe 28 is fixedly connected to the side end of the fixing frame 30. The top end of the fixing frame 30 is fixedly connected to the bottom end of the movable cutting table 3.

[0044] During operation, the motor 12 on the side of the fan body 10 is started, and the support frame 11 is used to fix the position of the fan body 10. When the motor 12 starts, it drives the turbine 13 to rotate. The rotation of the turbine 13 simultaneously drives the scraper 16 to rotate and scrape against the inner wall of the fan body 10, preventing the accumulation of too many dust particles on the inner wall of the fan body 10. When the scraper 16 wears, the first return spring 18 will automatically rebound, driving the first moving rod 15 and the limit block 17 to move outward. The first moving rod 15 moves along the... The fixed platform 14 moves internally, and the first moving rod 15 moves, pushing the scraper 16 to always press against the inner wall of the blower body 10. The turbine 13 rotates, generating suction, which draws in the fumes generated during cutting through the second connecting pipe 28. The anti-blocking plate 29 prevents excessively large impurities from being accidentally sucked into the second connecting pipe 28, preventing blockage. The fixing bracket 30 is used to fix the position of the second connecting pipe 28. When the anti-blocking plate 29 needs cleaning, it only needs to be pulled downwards. When the pulling force exceeds the magnetic force between the magnetic rod 33 and the second fixed block 32, the first fixed block 31 and the magnetic rod 33 will move downwards simultaneously, and the magnetic rod 33 will move downwards along the inside of the second fixed block 32 until it is completely detached. The smoke and dust drawn in will then be transported by the fan body 10 to the first connecting pipe 19 and the connector 20, and discharged after being filtered by the filter element 21. At the same time, the smoke and dust transported by the first connecting pipe 19 to the connector 20, combined with the airflow, will drive the fan blade head 23 to rotate. When the fan blade head 23 rotates, it will drive the rotating block 26 and the transmission rod 24 to rotate simultaneously. The rotating block 26 rotates along the inside of the sleeve block 27. At the same time, when the transmission rod 24 rotates, it drives the bottom end of the cleaning brush 25 to rotate and clean along the surface of the filter element 21, preventing the filter element 21 from becoming clogged. The sealing block 22 at the top of the filter element 21 is inserted into the bottom end of the connector 20, thereby effectively achieving a sealing effect and preventing gaps from forming between the connector 20 and the filter element 21, which would cause smoke and dust to be discharged without filtration.

[0045] Example 2

[0046] Please see Figures 1-10As shown in the comparative embodiment 1, as another implementation of the present invention, the connector 20 is also fixedly connected to the left and right ends near the lower position with a third fixing block 34. The third fixing block 34 has an insertion block 35 on its side, and a second moving rod 36 is inserted inside the insertion block 35. The insertion block 35 is slidably connected to the second moving rod 36. The second moving rod 36 is a circular rod design. One end of the second moving rod 36 is fixedly connected to the pressing plate 37, and the other end of the second moving rod 36 is fixedly connected to one end of the second return spring 38. The other end of the second return spring 38 is fixedly connected to the inner wall of the insertion block 35. The third fixing block 34 also has guide grooves 39 at both its front and rear ends. The guide grooves 39 and the insertion block 35 communicate with each other. The second moving rod 36... Both ends are fixedly connected to one end of the positioning rod 40. A sleeve 41 is fitted on the outer side of the bottom end of the third fixing block 34, and the sleeve 41 is slidably connected to the third fixing block 34. The other end of the positioning rod 40 is also inserted into the guide groove 39 and the sleeve 41, and the positioning rod 40 is also slidably connected to the guide groove 39 and the sleeve 41. The positioning rod 40 is a circular rod design. The sleeve 41 is fixedly connected to the outer side of the filter element 21. The top end of the sleeve 41 is fixedly connected to the bottom end of the positioning rod 42. The top end of the positioning rod 42 is inserted into the bottom end of the third fixing block 34, and the positioning rod 42 is slidably connected to the third fixing block 34. The positioning rod 42 is a circular rod design. A laser cutting method for producing automotive brake pad steel backing, the method includes the following steps:

[0047] S1: Start the motor 12. When the motor 12 starts, it drives the turbine 13 inside the fan body 10 to rotate. When the turbine 13 rotates, it will generate suction force to suck the smoke and dust generated during cutting into the fan body 10 through the second connecting pipe 28. The anti-blocking plate 29 will block larger impurities to prevent them from being sucked in and forming a blockage. The smoke and dust sucked in will be transported to the connector 20 through the first connecting pipe 19 and discharged after being filtered by the filter element 21. The sealing block 22 at the top of the filter element 21 is inserted into the connector 20 to activate the sealing effect and prevent the smoke and dust from being discharged in the gap.

[0048] S2: When the smoke and dust are transported to the inside of the connector 20 through the first connecting pipe 19, the generated wind energy will drive the fan blade head 23 and the transmission rod 24 to rotate synchronously. The rotation of the transmission rod 24 will drive the bottom end of the cleaning brush 25 to rotate and scrape along the top end of the filter element 21, thereby preventing the filter element 21 from becoming clogged during filtration. At the same time, when the transmission rod 24 rotates, it will drive the rotating block 26 to rotate along the inside of the sleeve block 27.

[0049] S3: When the turbine 13 rotates, it simultaneously drives the scraper 16 to rotate and scrape against the inner wall of the blower body 10, preventing dust particles from sticking to the inner wall of the blower body 10. When the scraper 16 wears, under the rebound force of the first return spring 18, it automatically pushes the first moving rod 15 and the scraper 16 to move, and drives the scraper 16 to always press against the inner wall of the blower body 10.

[0050] S4: Press the pressing plates 37 on both sides of the connector 20 inward, causing the second moving rod 36 and the second return spring 38 to move along the insert block 35 at the same time. When the second moving rod 36 moves, it will cause the positioning rod 40 to move along the guide groove 39 and the inside of the sleeve 41 until the positioning rod 40 is completely disengaged from the inside of the sleeve 41. Then pull the filter element 21 down. When the filter element 21 moves down, it will cause the sleeve 41 to move down along the outside of the third fixing block 34 until it is completely disengaged. At the same time, it will cause the positioning insert rod 42 to move outward along the bottom of the third fixing block 34 until it is completely disengaged.

[0051] During operation, press the pressing plates 37 on both sides of the connector 20 inward simultaneously. When the pressing plates 37 are pressed inward, the second moving rod 36 will move along the inside of the insert block 35, and at the same time, the second return spring 38 will be compressed and retracted. When the second moving rod 36 moves, the positioning rod 40 will move along the guide groove 39 and the inside of the sleeve 41 until the positioning rod 40 is completely disengaged from the inside of the sleeve 41. Then, pull the filter element 21 downward. When the filter element 21 is pulled downward, the sleeve 41 will move downward along the outside of the third fixing block 34 until it is completely disengaged. When the sleeve 41 moves downward, the positioning insert rod 42 will move downward along the inside of the third fixing block 34 until it is disengaged.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A laser cutting device based on the production of automotive brake pad steel backing, comprising a lower body (1); characterized in that: The lower body (1) of the device is movably connected to an adjustment platform (2) at its top, and a movable cutting platform (3) is movably connected to the top of the adjustment platform (2). A filter protection mechanism is provided on the outside of the movable cutting platform (3). The filter protection mechanism includes a fan body (10), which is set above the movable cutting table (3). The left end of the fan body (10) is fixedly connected to one end of the support frame (11), and the other end of the support frame (11) is fixedly connected to the movable cutting table (3). The right end of the fan body (10) is fixedly connected to the motor (12). The left end of the motor (12) passes through the fan body (10) and reaches the inside of the fan body (10) to be fixedly connected to the turbine (13). The upper and lower ends of the turbine (13) are also fixedly connected to the fixed platform (14). The left and right sides inside the fixed platform (14) are also fitted with the first moving rod (15), and the fixed platform (14) is slidably connected to the first moving rod (15). One end of the first moving rod (15) is fixedly connected to one end of the scraper (16), and the other end of the scraper (16) abuts against the inner wall of the fan body (10).

2. The laser cutting device for producing automotive brake pad steel backing according to claim 1, characterized in that: The other end of the first moving rod (15) is fixedly connected to the limiting block (17). A first reset spring (18) is sleeved on the outside of the first moving rod (15). One end of the first reset spring (18) is fixedly connected to the fixed platform (14), and the other end of the first reset spring (18) is fixedly connected to the limiting block (17).

3. The laser cutting device for producing automotive brake pad steel backing according to claim 2, characterized in that: The front end of the fan body (10) is fixedly connected to the rear end of the first connecting pipe (19), the bottom end of the first connecting pipe (19) is fixedly connected to the top end of the connector (20), the bottom end of the connector (20) is provided with a filter element (21), the top end of the filter element (21) is fixedly connected to the bottom end of the sealing block (22), the top end of the sealing block (22) is inserted into the bottom end of the connector (20), and the sealing block (22) is slidably connected to the connector (20).

4. The laser cutting device and method based on the production of automotive brake pad steel backing according to claim 3, characterized in that: The connector (20) has a fan blade head (23) located near the top inside. The bottom end of the fan blade head (23) is fixedly connected to the top end of the transmission rod (24). The bottom end of the transmission rod (24) is fixedly connected to the top end of the cleaning brush (25). The bottom end of the cleaning brush (25) abuts against the top end of the filter element (21).

5. The laser cutting device for producing automotive brake pad steel backing according to claim 4, characterized in that: The outer side of the transmission rod (24) near the middle position is fixedly connected to the inner wall of the rotating block (26). A sleeve block (27) is sleeved on the outer side of the rotating block (26), and the sleeve block (27) is rotatably connected to the rotating block (26). The outer side of the sleeve block (27) is fixedly connected to the inner wall of the connector (20).

6. The laser cutting device for producing automotive brake pad steel backing according to claim 5, characterized in that: The rear end of the fan body (10) is fixedly connected to the front end of the second connecting pipe (28). The bottom end of the second connecting pipe (28) passes through the movable cutting table (3) and reaches the movable cutting table (3). An anti-blocking plate (29) is provided at the bottom end of the second connecting pipe (28). The front and rear ends of the anti-blocking plate (29) are also fixedly connected to the first fixing block (31). The top end of the first fixing block (31) is fixedly connected to the bottom end of the magnetic rod (33). The top end of the magnetic rod (33) is inserted into the second fixing block (32). The magnetic rod (33) is magnetically connected to the second fixing block (32). The second fixing block (32) is fixedly connected to the outer side of the second connecting pipe (28) near the bottom end. The side end of the second connecting pipe (28) is fixedly connected to the side end of the fixing frame (30). The top end of the fixing frame (30) is fixedly connected to the bottom end of the movable cutting table (3).

7. The laser cutting device for producing automotive brake pad steel backing according to claim 6, characterized in that: The connector (20) is also fixedly connected to the left and right ends near the lower position with a third fixing block (34). The third fixing block (34) has an insertion block (35) on its side. The insertion block (35) has a second moving rod (36) inserted inside it. The insertion block (35) is slidably connected to the second moving rod (36). One end of the second moving rod (36) is fixedly connected to the pressing plate (37), and the other end of the second moving rod (36) is fixedly connected to one end of the second return spring (38). The other end of the second return spring (38) is fixedly connected to the inner wall of the insertion block (35).

8. The laser cutting device for producing automotive brake pad steel backing according to claim 7, characterized in that: The third fixing block (34) also has guide grooves (39) at both ends. The guide grooves (39) and the insert block (35) are interconnected. The second moving rod (36) is also fixedly connected to one end of the positioning rod (40) at both ends. The bottom of the third fixing block (34) is fitted with a sleeve (41), and the third fixing block (34) is slidably connected to the sleeve (41). The other end of the positioning rod (40) is also inserted into the guide groove (39) and the sleeve (41), and the positioning rod (40) is also slidably connected to the guide groove (39) and the sleeve (41). The sleeve (41) is fixedly connected to the outside of the filter element (21).

9. A laser cutting device for producing automotive brake pad steel backing according to claim 8, characterized in that: The top of the sleeve (41) is fixedly connected to the bottom of the positioning rod (42), the top of the positioning rod (42) is inserted into the bottom of the third fixing block (34), and the positioning rod (42) is slidably connected to the third fixing block (34).

10. A laser cutting method for producing automotive brake pad steel backing, applicable to the laser cutting apparatus for producing automotive brake pad steel backing as described in claim 9, characterized in that, The method includes the following steps: S1: Start the motor (12). When the motor (12) starts, it drives the turbine (13) inside the fan body (10) to rotate. When the turbine (13) rotates, it will generate suction force to suck the smoke generated during cutting into the fan body (10) through the second connecting pipe (28). The anti-blocking plate (29) will block larger impurities to prevent them from being accidentally sucked in and forming a blockage. The smoke that is sucked in will be transported to the connector (20) through the first connecting pipe (19) and discharged after being filtered by the filter (21). The sealing block (22) at the top of the filter (21) is inserted into the connector (20) to activate the sealing effect and prevent the smoke from being discharged in the gap. S2: When the smoke and dust are transported to the inside of the connector (20) through the first connecting pipe (19), the generated wind energy will drive the fan blade head (23) and the transmission rod (24) to rotate synchronously. The rotation of the transmission rod (24) will drive the bottom of the cleaning brush (25) to rotate and scrape along the top of the filter element (21), thereby preventing the filter element (21) from clogging during filtration. At the same time, when the transmission rod (24) rotates, it will drive the rotating block (26) to rotate along the inside of the sleeve block (27). S3: When the turbine (13) rotates, it simultaneously drives the scraper (16) to rotate and scrape against the inner wall of the blower body (10) to prevent dust particles from sticking to the inner wall of the blower body (10). When the scraper (16) wears out, under the rebound force of the first reset spring (18), it automatically pushes the first moving rod (15) and the scraper (16) to move, and drives the scraper (16) to always press against the inner wall of the blower body (10). S4: Press the left and right sides of the connector (20) pressing plates (37) inward, causing the second moving rod (36) and the second return spring (38) to move along the insert block (35) at the same time. When the second moving rod (36) moves, it will cause the positioning rod (40) to move along the guide groove (39) and the inside of the sleeve (41) until the positioning rod (40) is completely disengaged from the inside of the sleeve (41). Then pull the filter element (21) down. When the filter element (21) moves down, it will cause the sleeve (41) to move down along the outside of the third fixing block (34) until it is completely disengaged. At the same time, it will cause the positioning insert rod (42) to move outward along the bottom of the third fixing block (34) until it is completely disengaged.

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