Sheet metal processing laser cutting device

Abstract

This invention discloses a sheet metal processing laser cutting device, belonging to the technical field of laser cutting equipment. It achieves initial slag removal and cleaning by horizontally moving a slag-removing wheel and carrying out molten slag from the gaps between adjacent support bars. When the support shaft rotates, it drives the bevel gear to rotate the bevel gear disk and the reciprocating drive assembly. When the sliding column moves to its lowest point, it disengages from the spiral guide plate. Combined with the elastic support of the second spring inside the support cylinder, it drives the sliding sleeve, extension rod, and striking roller to accelerate upwards and reset. This causes the striking roller at the end of the extension rod to reciprocate up and down, performing high-frequency striking on the bottom of the support bars. This causes slight vibrations in the support bars, loosening and dislodging the stubborn molten slag adhering to the surface and gaps of the support bars. Through the coordinated work of the slag removal assembly and the striking assembly, comprehensive cleaning of molten slag from the surface and gaps of all support bars on the processing table is achieved, preventing residual slag from affecting the subsequent workpiece support accuracy and cutting quality.

Description

Technical Field

[0001] This invention relates to the field of laser cutting equipment technology, specifically to a sheet metal processing laser cutting device. Background Technology

[0002] In sheet metal laser cutting, the cutting platform is the core component that supports the sheet metal material and ensures cutting accuracy. Its structural design not only directly affects the cutting stability of the workpiece but is also closely related to slag discharge and cleaning efficiency. Currently, most mainstream laser cutting platforms on the market adopt grid-type or slotted structures, whose core function is only to support the workpiece. Although simple slag discharge gaps are reserved, no special design is made for slag cleaning, resulting in a large accumulation of slag generated by laser cutting in the platform's gaps, support surfaces, and edges.

[0003] Currently, slag removal on cutting platforms still relies on traditional methods. During breaks in cutting operations, manual removal of accumulated slag from the platform gaps and support surfaces is required using tools such as hand scrapers and wire brushes. This method is not only labor-intensive but also extremely inefficient. Using high-pressure air blowing or high-pressure water jets to clean slag from the platform can only blow away or wash away loose slag on the surface. It is not effective for cleaning firmly attached slag. Furthermore, the narrow gaps and complex structure of the platform make it easy for slag to adhere to the depths of the gaps, making it difficult to clean thoroughly. The residual slag can cause uneven stress when supporting workpieces, which in turn affects the accuracy of sheet metal cutting and may even cause scratches on the workpiece surface. Summary of the Invention

[0004] The purpose of this invention is to provide a sheet metal laser cutting device to solve the problem mentioned in the background art that the cleaning of molten slag on the cutting platform still relies on traditional methods, which require manual scraping tools such as scrapers and wire brushes during the cutting operation interval. This method is not effective for cleaning firmly attached molten slag. In addition, the platform has narrow gaps and complex structure, and molten slag is easy to adhere to the deep gaps, making it difficult to clean thoroughly. The residual molten slag will cause uneven force when supporting the workpiece later, thus affecting the sheet metal cutting accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A sheet metal processing laser cutting device includes a laser cutting machine body, a housing mounted on the laser cutting machine body, a laser cutting head installed inside the housing, a work frame fixed on the laser cutting machine body corresponding to the lower position of the laser cutting head, a processing table fixed inside the work frame, several support bars installed inside the processing table, a support assembly fixedly connected to the bottom of the processing table, sliding seats sliding on both sides inside the support assembly, electric hydraulic rods fixed on both sides behind the sliding seats, the other end of the electric hydraulic rods passing through and fixed to the rear position of the support assembly, the sliding seats having a U-shaped design and a transmission assembly rotatably connected to both sides of the inner wall via bushings, several sets of slag removal components slidingly mounted outside the transmission assembly, the several sets of slag removal components passing through between two adjacent support bars, and striking points respectively at the front and rear of the slag removal components. The components include a striking component that overlaps the bottom of a support bar, a reciprocating drive component that is fixed to both sides of the bottom of a transmission component, a support cylinder that runs through the bottom of the reciprocating drive component, support rods that are fixed to both sides of the support cylinder, a slag-cleaning scraper that is fixed between the tops of the two support rods corresponding to the outside of the two support cylinders, the support rods being L-shaped and extending through to the top of the support bar, the slag-cleaning scraper overlapping the support bar, the bottom ends of the two support cylinders being fixed to both sides inside a sliding seat, the front and rear sides of the reciprocating drive component being fixedly connected to the opposite ends of the two striking components, the striking component sliding through a sliding hole opened on the outside of the support cylinder, a placement groove opened on the back of the housing, a protective component installed in the placement groove, the front side of the protective component extending into the inside of the housing, and a rear cover plate that is hinged to the protective cover.

[0007] As a further embodiment of the present invention, a protective cover is installed in the opening on the front side of the housing by means of a hinge. The protective cover is L-shaped and its two sides are respectively connected to hydraulic push rods by means of pins. The bottom end of the hydraulic push rod is connected to the position below the opening on the front side of the protective cover by means of a pin. Side cover plates are respectively hinged to the two sides of the housing by means of hinges.

[0008] As a further embodiment of the present invention, the support assembly includes a support frame, the rear of which is fixed to two electro-hydraulic rods. Slide tracks are respectively provided on both sides of the support frame. The two ends of the sliding seat are slidably connected in the two slide tracks. Guide rods are respectively fixed on the front and rear sides of the inner wall of the slide track. The guide rods slide through the sliding seat. Toothed rods are installed on both sides of the inner wall of the support frame corresponding to the upper positions of the two slide tracks.

[0009] As a further embodiment of the present invention, the transmission assembly includes a support shaft, the two ends of which are rotatably connected to the two sides of the inner wall of the sliding seat via bushings. Two limiting strips are fixed to the outside of the support shaft corresponding to the positions of several sets of slag removal components. A bevel gear and a transmission gear are fixed to the two sides of the outside of the support shaft, respectively. A bevel gear is meshed with a bevel gear disc at the bottom of the bevel gear, and the transmission gear is meshed with the bottom of the gear rack.

[0010] As a further embodiment of the present invention, the slag removal assembly includes two slag removal wheels sleeved on the outside of the support shaft. The two corresponding slag removal wheels overlap with the two sides of the support bar. The outer side of the slag removal wheel is provided with several slag discharge grooves. The inner groove in the middle of the slag removal wheel slides outside the two corresponding limit bars. A slip ring is fixed on the side of the two slag removal wheels that are far apart from each other. A support sleeve is provided on one side of the slip ring. The support sleeve is fixed outside the support shaft. A sliding groove is provided inside the support sleeve. The slip ring is slidably connected in the sliding groove. A first spring is fixed between the slag removal wheel and the inside of the support sleeve.

[0011] As a further embodiment of the present invention, the striking assembly includes two striking rollers, the tops of the two striking rollers overlap with the bottoms of several support bars, and extension rods are installed at both ends of the striking rollers. The extension rods are L-shaped and located on the front and rear sides of the slag removal assembly. Two extension rods on the same side slide through a sliding hole opened on the outside of the support cylinder, and the opposite ends of the two extension rods are fixed to the outside of the same reciprocating drive assembly.

[0012] As a further embodiment of the present invention, the reciprocating drive assembly includes a sliding sleeve, a central shaft rotatably passing through the middle of the sliding sleeve, the bottom end of the central shaft being rotatably connected to the bottom of the inner wall of the support cylinder via a bushing, the top end of the central shaft passing through the support cylinder and fixed to the bottom of the bevel gear disc, a rotating roller fixed to the outside of the central shaft, two helical guide plates fixed to the outside of the rotating roller, the two helical guide plates being symmetrically arranged about the center of the rotating roller, sliding columns being fixed to both sides of the inner wall of the sliding sleeve, the two sliding columns sliding at the end positions of the two helical guide plates respectively, and the two helical guide plates inside the two support cylinders being symmetrically arranged about the middle of the sliding seat, and a second spring being fixed between the bottom of the sliding sleeve and the bottom of the inner wall of the support cylinder.

[0013] As a further embodiment of the present invention, the protective component includes a dust suction hood that penetrates the placement groove and extends into the housing. The front of the dust suction hood is provided with an adsorption port, and the back of the dust suction hood is connected to a filter box. The filter box is installed in the placement groove, and a suction pump is connected to the top of the filter box.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention uses two electro-hydraulic rods to push a sliding seat to reciprocate linearly along the slide rail of the support assembly. Simultaneously, the sliding seat moves, causing the support shaft to drive the slag-cleaning wheel horizontally, carrying out the molten slag in the gap between adjacent support bars, achieving initial slag removal and cleaning. When the support shaft rotates, it drives a bevel gear to rotate a bevel gear disc and the central shaft to rotate synchronously. The rotating roller outside the central shaft rotates with the central shaft, and two symmetrically arranged spiral guide plates outside the roller rotate synchronously. When the spiral guide plates rotate, their ends slide against the sliding columns on both sides of the inner wall of the sleeve, pushing the sleeve downwards along the central shaft. This causes the sleeve to drive the striking roller downwards via an extension rod, disengaging it from the bottom of the support bar. When the sliding column reaches its lowest point, it disengages from the spiral guide plate, engaging with the second spring inside the support cylinder. The elastic support drives the sliding sleeve to move upward and reset. During this process, the sliding column returns to the top position of the spiral guide plate. The sliding sleeve then drives the striking roller to accelerate upward and strike the bottom of the support bar through the extension rod. Therefore, when the sliding sleeve moves up and down, the extension rods fixed on its front and rear sides slide up and down along the sliding holes on the outside of the support cylinder, driving the striking roller at the end of the extension rod to move up and down and strike the bottom of the support bar at a high frequency, causing the support bar to vibrate slightly. This loosens and shakes off the stubborn slag attached to the surface and gaps of the support bar, making it easier for the slag removal component's cleaning wheel to scrape it off completely. Through the coordinated work of the slag removal component and the striking component, the slag on the surface and gaps of all support bars on the processing table is thoroughly cleaned, avoiding residual slag from affecting the subsequent workpiece support accuracy and cutting quality. 2. This invention drives the sliding seat to move horizontally, causing the transmission gear to rotate under the action of the rack, which in turn drives the support shaft to rotate synchronously. At the same time, the limiting strip outside the support shaft rotates with the support shaft, providing guidance for the rotation of the slag removal assembly. The slag removal wheel of the slag removal assembly is sleeved on the outside of the support shaft, and its inner groove slides with the limiting strip of the support shaft to ensure that the slag removal wheel rotates synchronously with the support shaft and does not have circumferential deviation. Since there are two slag removal wheels in each set, they overlap with the two sides of the support bar respectively. The first spring inside the support sleeve always applies an elastic force to the slag removal wheel, so that the slag removal wheel can drive the slip ring to slide in the sliding groove inside the support sleeve, so that the slag removal wheel fits tightly against the surface of the support bar and adapts to the size fluctuation of the support bar. When the slag removal wheel rotates, the slag discharge groove opened on its outside can scrape off the molten slag attached to the surface of the support bar, and at the same time carry out the molten slag in the gap between adjacent support bars, so that the slag removal wheel can rotate and scrape slag while pushing slag horizontally, improving the cleaning effect of molten slag. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments 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.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a rear view structural schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the working frame of the present invention viewed from below;

[0019] Figure 4 This is a schematic diagram of the cross-section of the processing table of the present invention;

[0020] Figure 5 This is a schematic diagram of a partial cross-section of the support component of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the sliding seat and transmission assembly of the present invention;

[0022] Figure 7 This is a schematic diagram of a partial cross-section of the slag removal component of the present invention;

[0023] Figure 8 This is a schematic diagram of the unfolded structure of the slag removal component of the present invention;

[0024] Figure 9 This is a side view of the cross-sectional structure of the sliding seat of the present invention;

[0025] Figure 10 This is a schematic diagram of a partial cross-section of the transmission component of the present invention;

[0026] Figure 11 This is a schematic diagram of the cross-section of the support cylinder of the present invention;

[0027] Figure 12 This is a schematic diagram of the structure of the rotating roller and the spiral guide plate of the present invention.

[0028] The attached diagram lists the components represented by each number as follows: 1. Laser cutting machine body; 2. Machine housing; 3. Laser cutting head; 4. Work frame; 5. Processing table; 6. Support bar; 7. Support assembly; 701. Support frame; 702. Slide rail; 703. Guide rod; 704. Gear rack; 8. Electro-hydraulic rod; 9. Sliding seat; 10. Transmission assembly; 101. Support shaft; 102. Limiting bar; 103. Transmission gear; 104. Bevel gear; 105. Bevel gear disc; 11. Slag removal assembly; 111. Slag cleaning wheel; 112. Slip ring; 113. Support sleeve; 114. Sliding groove; 115. First spring; 12. Striking assembly; 121. Extension rod; 122. Striking roller; 13. Support cylinder; 14. Reciprocating drive assembly; 141. Sliding sleeve; 142. Central shaft; 143. Rotating roller; 144. Spiral guide plate; 145. Sliding column; 146. Second spring; 15. Protective cover; 16. Hydraulic push rod; 17. Protective assembly; 171. Dust suction hood; 172. Filter box; 173. Suction pump; 18. Placement slot; 19. Rear cover plate; 20. Side cover plate; 21. Support top rod; 22. Slag cleaning scraper. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-12 The present invention provides a technical solution:

[0031] A sheet metal processing laser cutting device includes a laser cutting machine body 1, a housing 2 mounted on the laser cutting machine body 1, a laser cutting head 3 installed inside the housing 2, and a work frame 4 fixed on the laser cutting machine body 1 below the laser cutting head 3. A protective cover 15 is hinged to the opening on the front side of the housing 2. The protective cover 15 has an L-shaped design, and its two sides are respectively connected to hydraulic push rods 16 by pins. The bottom end of the hydraulic push rod 16 is connected to the lower part of the front opening of the protective cover 15 by pins. When the hydraulic push rod 16 retracts, it drives the protective cover 15 to close, sealing the front opening of the housing 2 and preventing sparks and dust from leaking out during the cutting process. Side cover plates 20 are respectively hinged to the two sides of the housing 2. When the side cover plates 20 are opened, the two sides of the housing 2 are exposed to facilitate routine maintenance of its internal structure.

[0032] The work frame 4 has a fixed processing table 5. The processing table 5 has several support bars 6 installed inside. The sheet metal workpiece to be processed is placed on the support bars 6 of the processing table 5. The support bars 6 provide stable support for the workpiece, ensuring that the surface of the workpiece is flat and free from shaking.

[0033] A support assembly 7 is fixedly connected to the bottom of the processing table 5. Sliding seats 9 are slidably mounted on both sides inside the support assembly 7. Electric hydraulic rods 8 are fixed on both sides behind the sliding seats 9. The other end of the electric hydraulic rods 8 is fixed through and fixed to the rear position of the support assembly 7. The support assembly 7 includes a support frame 701. The rear of the support frame 701 is fixed to two electric hydraulic rods 8. Slide tracks 702 are opened on both sides of the support frame 701. The two ends of the sliding seats 9 are slidably connected in the two slide tracks 702. Guide rods 703 are fixed on the front and rear sides of the inner wall of the slide track 702. The guide rods 703 slide through and slide in the sliding seats 9. Toothed rods 704 are installed on both sides of the inner wall of the support frame 701 corresponding to the upper positions of the two slide tracks 702.

[0034] During operation, the electric hydraulic rods 8 on both sides of the support component 7 are activated, pushing the sliding seat 9 to reciprocate linearly along the slide rail 702 of the support component 7. The slide rail 702 limits the two ends of the sliding seat 9, and the guide rod 703 in the slide rail 702 guides and limits the sliding seat 9, ensuring smooth sliding without deviation.

[0035] The sliding seat 9 has a U-shaped design and the two sides of the inner wall are rotatably connected to the transmission assembly 10 through bushings. The transmission assembly 10 includes a support shaft 101. The two ends of the support shaft 101 are rotatably connected to the two sides of the inner wall of the sliding seat 9 through bushings. Two limit strips 102 are fixed to the outside of the support shaft 101 corresponding to the positions of several sets of slag removal assemblies 11. A bevel gear 104 and a transmission gear 103 are fixed to the two sides of the outside of the support shaft 101 respectively. A bevel gear 104 is meshed with a bevel gear disk 105 at the bottom. The transmission gear 103 is meshed with the bottom of the rack 704.

[0036] During operation, the transmission gears 103 fixed on both sides of the outside of the support shaft 101 mesh with the bottom of the racks 704 on both sides of the inner wall of the support frame 701 of the support assembly 7. When the sliding seat 9 moves along the slide 702, the transmission gears 103 rotate under the action of the racks 704, thereby driving the support shaft 101 to rotate synchronously. At the same time, the limiting strips 102 on the outside of the support shaft 101 rotate with the support shaft 101, providing guidance for the rotation of the slag removal assembly 11, so that the slag removal assembly 11 rotates synchronously with the support shaft 101 and does not have circumferential displacement.

[0037] Several sets of slag removal components 11 are slidably installed on the outside of the transmission assembly 10. The several sets of slag removal components 11 are arranged through between two adjacent support bars 6. The slag removal component 11 includes a slag cleaning wheel 111. The slag cleaning wheel 111 is sleeved on the outside of the support shaft 101, and there are two slag cleaning wheels 111. The two corresponding slag cleaning wheels 111 overlap with the two sides of the support bar 6. The two sides of the support cylinder 13 are respectively fixedly connected to the support top rods 21. The top of the two corresponding support top rods 21 on the outside of the two support cylinders 13 is fixedly connected to the slag cleaning scraper 22. The support top rod 21 is L-shaped and extends through to the top of the support bar 6. The slag cleaning scraper 22 overlaps on the support bar 6.

[0038] During operation, the sliding seat 9 moves through the support cylinder 13, which drives multiple support rods 21 to move in the gap between two adjacent support bars 6. This causes the two opposing support rods 21 to drive the slag removal scraper 22 to move above the multiple support bars 6, and scrape off the residual slag above the support bars 6. The slag removal scraper 22 has a beveled design on both sides, which can effectively remove the attached slag from the support bars 6 and facilitate the guidance and discharge of the slag, allowing it to fall through the gap between the multiple support bars 6.

[0039] The slag-cleaning wheel 111 has several slag discharge grooves on its outer side. The inner groove in the middle of the slag-cleaning wheel 111 slides outside the corresponding two limit bars 102. A slip ring 112 is fixed on the side of the two slag-cleaning wheels 111 that is far apart from each other. A support sleeve 113 is provided on one side of the slip ring 112. The support sleeve 113 is fixedly sleeved on the outside of the support shaft 101. A sliding groove 114 is provided inside the support sleeve 113. The slip ring 112 is slidably connected in the sliding groove 114. A first spring 115 is fixed between the slag-cleaning wheel 111 and the inside of the support sleeve 113.

[0040] During operation, since there are two slag-cleaning wheels 111 in each set, which overlap with the two sides of the support bar 6 respectively, the first spring 115 inside the support sleeve 113 always applies an elastic force to the slag-cleaning wheel 111, so that the slag-cleaning wheel 111 can drive the slip ring 112 to slide in the sliding groove 114 inside the support sleeve 113, so that the slag-cleaning wheel 111 fits tightly against the surface of the support bar 6 and adapts to the size fluctuation of the support bar 6. When the slag-cleaning wheel 111 rotates, the slag discharge groove opened on its outside can scrape off the molten slag attached to the surface of the support bar 6, and at the same time carry out the molten slag in the gap between adjacent support bars 6, thereby improving the slag-cleaning effect.

[0041] The slag removal assembly 11 is provided with a striking assembly 12 at the front and rear. The striking assembly 12 overlaps the bottom of the support bar 6. The two sides of the bottom of the transmission assembly 10 are respectively fixed with a reciprocating drive assembly 14. The bottom of the reciprocating drive assembly 14 is provided with a support cylinder 13. The bottom ends of the two support cylinders 13 are fixed to the two sides inside the sliding seat 9. The front and rear sides of the reciprocating drive assembly 14 are respectively fixedly connected to the opposite ends of the two striking assemblies 12. The striking assembly 12 slides through the sliding hole opened on the outside of the support cylinder 13.

[0042] The striking assembly 12 includes two striking rollers 122. The tops of the two striking rollers 122 overlap with the bottoms of several support bars 6. Extension rods 121 are installed at both ends of the striking rollers 122. The extension rods 121 are L-shaped and located on the front and rear sides of the slag removal assembly 11. The two extension rods 121 on the same side slide through the sliding holes opened on the outside of the support cylinder 13, and the opposite ends of the two extension rods 121 are fixed to the outside of the same reciprocating drive assembly 14.

[0043] During operation, the bevel gear 104 is linked with the bevel gear disk 105 meshing at the bottom, driving the bevel gear disk 105 to rotate and providing power to the reciprocating drive assembly 14. When the bevel gear disk 105 rotates, it drives the reciprocating drive assembly 14 at its bottom to rotate synchronously. The extension rods 121 fixed on the front and rear sides of the reciprocating drive assembly 14 slide up and down synchronously along the sliding holes on the outside of the support cylinder 13, driving the striking rollers 122 at the ends of the extension rods 121 to move up and down reciprocally, striking the bottom of the support bar 6 at high frequency, causing the support bar 6 to vibrate slightly, loosening and shaking off the stubborn slag attached to the surface and gaps of the support bar 6.

[0044] As a further embodiment of the present invention, the reciprocating drive assembly 14 includes a sliding sleeve 141, a central shaft 142 rotatably passing through the middle of the sliding sleeve 141, the bottom end of the central shaft 142 being rotatably connected to the bottom of the inner wall of the support cylinder 13 via a bushing, the top end of the central shaft 142 passing through the support cylinder 13 and fixed to the bottom of the bevel gear disk 105, a rotating roller 143 being fixed to the outside of the central shaft 142, two spiral guide plates 144 being fixed to the outside of the rotating roller 143, the two spiral guide plates 144 being symmetrically arranged about the center of the rotating roller 143, sliding columns 145 being fixed to both sides of the inner wall of the sliding sleeve 141, the two sliding columns 145 sliding at the end positions of the two spiral guide plates 144 respectively, and the two spiral guide plates 144 inside the two support cylinders 13 being symmetrically arranged about the middle of the sliding seat 9, a second spring 146 being fixed between the bottom of the sliding sleeve 141 and the bottom of the inner wall of the support cylinder 13;

[0045] During operation, the rotating roller 143 outside the central shaft 142 rotates with the central shaft 142. Two spiral guide plates 144 symmetrically arranged outside the rotating roller 143 rotate synchronously. When the spiral guide plates 144 rotate, their ends slide into contact with the sliding columns 145 on both sides of the inner wall of the sliding sleeve 141, pushing the sliding sleeve 141 to move downward along the central shaft 142. This causes the sliding sleeve 141 to drive the striking roller 122 downward through the extension rod 121, causing it to disengage from the bottom of the support bar 6. When the sliding column 145 moves to the bottommost position, it will disengage from the spiral guide plate 144. With the support of the elastic force of the second spring 146 inside the support cylinder 13, the sliding sleeve 141 moves upward and resets. During this process, the sliding column 145 returns to the top position of the spiral guide plate 144. The sliding sleeve 141 then drives the striking roller 122 to accelerate upward through the extension rod 121 to strike the bottom of the support bar 6, improving the striking effect of the striking roller 122 on the support bar 6.

[0046] As a further embodiment of the present invention, a placement groove 18 is provided on the back of the housing 2, and a protective component 17 is installed in the placement groove 18. The front side of the protective component 17 extends into the interior of the housing 2, and a rear cover plate 19 is hinged to the protective cover 15. The protective component 17 includes a dust suction hood 171, which penetrates the placement groove 18 and extends into the interior of the housing. A suction port is provided at the front of the dust suction hood 171, and a filter box 172 is connected to the back of the dust suction hood 171. The filter box 172 is installed in the placement groove 18, and a suction pump 173 is connected to the top of the filter box 172.

[0047] During operation, the suction pump 173 works continuously, sucking the smoke and fine dust generated during cutting into the suction hood 171 through the suction port in front of the suction hood 171, and then transporting it to the filter box 172 for filtration. The filtered clean gas is then discharged to prevent smoke and dust from polluting the workshop environment.

[0048] Working principle of this invention:

[0049] By placing the sheet metal workpiece to be processed on the support bar 6 of the processing table 5, the support bar 6 provides stable support for the workpiece, ensuring that the workpiece surface is flat and free from shaking. The hydraulic push rod 16 retracts, causing the protective cover 15 to close, sealing the front opening of the machine housing 2 and preventing sparks and dust from leaking out during cutting. After processing preparation is complete, the control system issues a cutting command, the laser cutting machine body 1 starts, and the laser cutting head 3 inside the machine housing 2 begins to work. According to the preset cutting parameters, it precisely cuts the sheet metal workpiece on the processing table 5. During the cutting process, the high temperature generated by the laser cutting head 3 causes the sheet metal workpiece to... During the localized melting process, molten metal slag is generated as the cutting is completed. Some of the slag falls below the support bars 6 of the processing table 5 and into the gaps between adjacent support bars 6. During the cutting process, the protective cover 15 remains closed to isolate and protect against sparks and high-temperature molten slag splashing and causing injury. At the same time, the suction pump 173 of the protective component 17 continues to work, sucking the smoke and fine dust generated during cutting into the suction cover 171 through the suction port in front of the suction cover 171. The dust is then transported to the filter box 172 for filtration. The filtered clean gas is then discharged to prevent smoke and dust from polluting the workshop environment.

[0050] After the cutting work is completed, the extension and retraction of the hydraulic push rod 16 drives the L-shaped protective cover 15 to rotate around the hinge, opening the front opening of the machine housing 2 and taking the processed sheet metal workpiece out from the support bar 6 of the processing table 5. When cleaning the slag attached between multiple support bars 6, the electric hydraulic rods 8 on both sides of the support component 7 are activated, pushing the sliding seat 9 to reciprocate linearly along the slide 702 of the support component 7. The guide rod 703 in the slide 702 guides and limits the sliding seat 9 to ensure smooth sliding without deviation. The sliding seat 9 has a U-shaped design. The transmission component 10, which is rotatably connected to the two sides of its inner wall through the bushing, and the slag removal component 11 and the striking component 12 outside the transmission component 10 move synchronously with the sliding seat 9, so that several sets of slag removal components 11 accurately penetrate between two adjacent support bars 6. The striking roller 122 of the striking component 12 accurately overlaps the bottom of the support bar 6, completing the alignment of the slag removal and striking components, ensuring that the entire support area of ​​the processing table 5 is covered without any cleaning dead corners.

[0051] As the sliding seat 9 moves, the transmission assembly 10 begins to operate. The two ends of the support shaft 101 of the transmission assembly 10 are rotatably connected to the sliding seat 9 via bushings. The transmission gears 103 fixed on both sides of the outer surface of the support shaft 101 mesh with the bottom of the toothed rods 704 on both sides of the inner wall of the support frame 701 of the support assembly 7. When the sliding seat 9 moves along the slide rail 702, the transmission gears 103 rotate under the action of the toothed rods 704, thereby driving the support shaft 101 to rotate synchronously. Simultaneously, the limiting strip 102 on the outer surface of the support shaft 101 rotates with the support shaft 101, providing guidance for the rotation of the slag removal assembly 11. The slag removal wheel 111 of the slag removal assembly 11 is sleeved on the outside of the support shaft 101, and its inner groove slides in cooperation with the limiting strip 102 of the support shaft 101, ensuring that the slag removal wheel 111 rotates synchronously with the support shaft 101 without circumferential displacement. This is because each set of slag removal wheels 111... There are two of them, which overlap with the two sides of the support bar 6 respectively. The first spring 115 inside the support sleeve 113 always applies an elastic force to the slag cleaning wheel 111, so that the slag cleaning wheel 111 can drive the slip ring 112 to slide in the sliding groove 114 inside the support sleeve 113, so that the slag cleaning wheel 111 fits tightly against the surface of the support bar 6 and adapts to the size fluctuation of the support bar 6. When the slag cleaning wheel 111 rotates, the slag discharge groove opened on its outside can scrape off the molten slag attached to the surface of the support bar 6, and at the same time carry out the molten slag in the gap between adjacent support bars 6. Secondly, during the movement, the sliding seat 9 can drive multiple support rods 21 to move in the gap between two adjacent support bars 6 through the support cylinder 13, so that the two opposing support rods 21 drive the slag cleaning scraper 22 to move above multiple support bars 6 and scrape off the molten slag remaining above the support bars 6, so as to achieve the initial scraping and cleaning of molten slag.

[0052] When the support shaft 101 rotates, the bevel gear 104 fixed outside it rotates synchronously. The bevel gear 104 is linked with the bevel gear disk 105 meshing at the bottom, driving the bevel gear disk 105 to rotate, providing power to the reciprocating drive assembly 14. When the bevel gear disk 105 rotates, it drives the central shaft 142 fixed at its bottom to rotate synchronously. The central shaft 142 passes through the support cylinder 13 and is rotatably connected to the bushing at the bottom of the support cylinder 13. The rotating roller 143 outside the central shaft 142 rotates with the central shaft 142. The two spiral guide plates 144 symmetrically arranged outside the rotating roller 143 rotate synchronously. When the spiral guide plates 144 rotate, their ends slide against the sliding columns 145 on both sides of the inner wall of the sliding sleeve 141, pushing the sliding sleeve 141 to move downward along the central shaft 142, so that the sliding sleeve 141 drives the striking roller 122 to move downward through the extension rod 121, causing it to disengage from the bottom of the support bar 6. When column 145 moves to the bottom, it will disengage from spiral guide plate 144. With the support of the second spring 146 inside support cylinder 13, it will drive sliding sleeve 141 to move upward and reset. During this process, sliding column 145 returns to the top position of spiral guide plate 144. Sliding sleeve 141 will drive striking roller 122 to accelerate upward through extension rod 121 to strike the bottom of support bar 6. Therefore, when sliding sleeve 141 moves up and down, the extension rod 121 fixed on its front and rear sides will slide up and down along the sliding hole outside support cylinder 13, driving the striking roller 122 at the end of extension rod 121 to move up and down, striking the bottom of support bar 6 at high frequency, causing support bar 6 to vibrate slightly, loosening and shaking off the stubborn slag attached to the surface and gaps of support bar 6, so that the slag removal wheel 111 of slag removal component 11 can completely scrape it off, avoiding slag residue.

Claims

1. A sheet metal processing laser cutting device, comprising a laser cutting machine body (1), characterized in that: A housing (2) is installed on the main body (1) of the laser cutting machine. A laser cutting head (3) is installed inside the housing (2). A work frame (4) is fixed on the main body (1) below the laser cutting head (3). A processing table (5) is fixed inside the work frame (4). Several support bars (6) are installed inside the processing table (5). A support assembly (7) is fixedly connected to the bottom of the processing table (5). Sliding seats (9) slide on both sides inside the support assembly (7). The two sides behind the sliding seats (9) are respectively An electric hydraulic rod (8) is fixed, with its other end fixed behind the support assembly (7). The sliding seat (9) is U-shaped, and its inner walls are rotatably connected to a transmission assembly (10) via bushings. Several sets of slag removal assemblies (11) are slidably installed on the outside of the transmission assembly (10). The slag removal assemblies (11) are arranged between two adjacent support bars (6). A striking assembly (12) is provided in front of and behind the slag removal assembly (11). The striking assembly (12) overlaps the support bar (6). At the bottom, reciprocating drive components (14) are fixed on both sides of the bottom of the transmission component (10). A support cylinder (13) is provided through the bottom of the reciprocating drive component (14). Support rods (21) are fixedly connected to both sides of the support cylinder (13). A slag scraper (22) is fixed between the top ends of the two support rods (21) corresponding to the outside of the two support cylinders (13). The support rods (21) are L-shaped and extend through to the top of the support bar (6). The slag scraper (22) overlaps the support bar (6). The two support cylinders The bottom end of (13) is fixed to both sides inside the sliding seat (9). The front and rear sides of the reciprocating drive assembly (14) are respectively fixedly connected to the opposite ends of the two striking assemblies (12). The striking assembly (12) slides through the sliding hole opened outside the support cylinder (13). The back of the housing (2) is provided with a placement groove (18). A protective assembly (17) is installed in the placement groove (18). The front side of the protective assembly (17) extends into the interior of the housing (2). A rear cover plate (19) is installed on the protective cover (15) by hinge.

2. The sheet metal processing laser cutting device according to claim 1, characterized in that: A protective cover (15) is installed in the opening on the front side of the housing (2) by hinge. The protective cover (15) is L-shaped and the two sides inside are respectively connected to hydraulic push rods (16) by pins. The bottom end of the hydraulic push rod (16) is connected to the lower position of the opening on the front side of the protective cover (15) by pins. Side cover plates (20) are respectively hinged on both sides of the housing (2).

3. The sheet metal processing laser cutting device according to claim 1, characterized in that: The support assembly (7) includes a support frame (701), the rear of which is fixed to two electric hydraulic rods (8). Slides (702) are provided on both sides of the support frame (701). The two ends of the sliding seat (9) are slidably connected in the two slides (702). Guide rods (703) are fixed on the front and rear sides of the inner wall of the slide (702). The guide rods (703) slide through the sliding seat (9). Toothed rods (704) are installed on both sides of the inner wall of the support frame (701) corresponding to the upper positions of the two slides (702).

4. The sheet metal processing laser cutting device according to claim 3, characterized in that: The transmission assembly (10) includes a support shaft (101). The two ends of the support shaft (101) are rotatably connected to the two sides of the inner wall of the sliding seat (9) through bushings. Two limiting strips (102) are fixed on the outside of the support shaft (101) corresponding to the positions of several sets of slag removal assemblies (11). A bevel gear (104) and a transmission gear (103) are fixed on the two sides of the outside of the support shaft (101). A bevel gear disk (105) is meshed with the bottom of the bevel gear (104). The transmission gear (103) is meshed with the bottom of the rack (704).

5. The sheet metal processing laser cutting device according to claim 4, characterized in that: The slag removal assembly (11) includes a slag removal wheel (111), which is sleeved on the outside of the support shaft (101). There are two slag removal wheels (111), and the two corresponding slag removal wheels (111) overlap with the two sides of the support bar (6). Several slag discharge grooves are opened on the outside of the slag removal wheel (111). The inner groove opened in the middle of the slag removal wheel (111) slides outside the two corresponding limit bars (102). A slip ring (112) is fixed on the side of the two slag removal wheels (111) that is far away from each other. A support sleeve (113) is provided on one side of the slip ring (112). The support sleeve (113) is fixed on the outside of the support shaft (101). A sliding groove (114) is opened inside the support sleeve (113). The slip ring (112) is slidably connected in the sliding groove (114). A first spring (115) is fixed between the slag removal wheel (111) and the support sleeve (113).

6. The sheet metal processing laser cutting device according to claim 5, characterized in that: The striking assembly (12) includes two striking rollers (122), the tops of which overlap with the bottoms of several support bars (6). The two ends of the striking rollers (122) are equipped with extension rods (121). The extension rods (121) are L-shaped and located on the front and rear sides of the slag removal assembly (11). The two extension rods (121) on the same side slide through the sliding holes opened on the outside of the support cylinder (13), and the opposite ends of the two extension rods (121) are fixed to the outside of the same reciprocating drive assembly (14).

7. The sheet metal processing laser cutting device according to claim 6, characterized in that: The reciprocating drive assembly (14) includes a sliding sleeve (141), through which a central shaft (142) rotatably passes. The bottom end of the central shaft (142) is rotatably connected to the bottom of the inner wall of the support cylinder (13) via a bushing. The top end of the central shaft (142) passes through the support cylinder (13) and is fixed to the bottom of the bevel gear disc (105). A rotating roller (143) is fixed to the outside of the central shaft (142), and two spiral guide plates (143) are fixed to the outside of the rotating roller (143). 4) Two spiral guide plates (144) are symmetrically arranged about the center of the rotating roller (143). Sliding columns (145) are fixed on both sides of the inner wall of the sliding sleeve (141). The two sliding columns (145) slide at the end positions of the two spiral guide plates (144). The two spiral guide plates (144) inside the two support cylinders (13) are symmetrically arranged about the middle of the sliding seat (9). A second spring (146) is fixed between the bottom of the sliding sleeve (141) and the bottom of the inner wall of the support cylinder (13).

8. The sheet metal processing laser cutting device according to claim 1, characterized in that: The protective component (17) includes a dust hood (171) that extends through the placement slot (18) and into the housing. The dust hood (171) has an adsorption port at the front and a filter box (172) connected to the back of the dust hood (171). The filter box (172) is installed in the placement slot (18) and a suction pump (173) is connected to the top of the filter box (172).

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