A laser punching device for sheet metal

Abstract

The invention discloses a sheet metal laser drilling device, relates to the field of sheet metal processing, solves the problem that it is difficult for existing laser drilling devices to clean up the residues generated by laser drilling in time, comprises: a device base and a processing table fixedly installed on the top of the device base, a processing plate fixedly installed on the top of the processing table, a plurality of supporting tooth plates equidistantly distributed are fixedly installed on the inner side of the processing plate, driving slide rails are fixedly installed on both sides of the processing table, a U-shaped frame is fixedly installed between the two driving slide rails, and a laser transmitter is arranged at the bottom of the U-shaped frame; further comprises: a slag collecting mechanism, which is used to collect the sheet metal residues generated by the laser transmitter, and the slag collecting mechanism is installed inside the processing table; the invention can receive sparks and residues generated by the punching point at the bottom of the sheet metal when the laser transmitter punches the sheet metal through the slag collecting mechanism, prevent the sparks and residues from splashing, solve the problem of residue accumulation, and thus achieve the effect of residue collection.

Description

Technical Field

[0001] The invention relates to the field of sheet metal processing, in particular to a sheet metal laser drilling device. Background Art

[0002] ‌Sheet metal laser drilling‌ is a method of drilling holes on sheet metal using laser technology. It uses high-density laser energy to irradiate the sheet metal with a focused laser beam, causing the local temperature to rise rapidly, causing the material to undergo a phase change from solid to liquid or even gas, thereby forming holes. Laser drilling technology has been widely used in sheet metal processing due to its precision, high efficiency and non-contact characteristics. It is suitable for the processing of metal plates such as steel plates, aluminum plates, and copper plates, especially in the fields of electronics, communications, automotive industry, medical equipment, etc.

[0003] In order to ensure the accuracy and efficiency of laser drilling of sheet metal, it is necessary to fix the sheet metal by an appropriate tooling fixture to avoid movement or deformation during the laser drilling process. The existing Chinese public patent document: CN110202278B discloses a method for laser drilling of sheet metal, which uses gas to blow off the hole chips for centralized cleaning, and the gas can accelerate the cooling of the hole chips with higher temperatures, reducing the possibility of agglomeration of sheet metal and the inner wall of the inclined hole. The setting of the alignment upper cylinder reduces the splashing rate of sparks during drilling. However, when the laser head cuts and drills the sheet metal, residues will fall. The cooling of the gas will cause the residues to cool down quickly, causing the residues to stick to the processing table of the machine tool. With the continuous drilling of the sheet metal, the residues will accumulate on the processing table and are difficult to clean, increasing the difficulty of later cleaning. Summary of the invention

[0004] The purpose of the present invention is to provide a sheet metal laser drilling device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A sheet metal laser drilling device comprises: a device base and a processing table fixedly mounted on the top of the device base, a processing plate fixedly mounted on the top of the processing table, a plurality of equidistantly distributed supporting tooth plates fixedly mounted on the inner side of the processing plate for placing sheet metal parts, driving slide rails fixedly mounted on both sides of the processing table, a U-shaped frame fixedly mounted between the two driving slide rails, a laser emitter is arranged at the bottom of the U-shaped frame for drilling holes in the sheet metal parts on the supporting tooth plates, and the driving slide rail can adjust the longitudinal position of the laser emitter on the U-shaped frame; further comprising: a slag collecting mechanism for collecting sheet metal residues generated by the laser emitter, the slag collecting mechanism being mounted inside the processing table; a disassembly and assembly mechanism for cleaning the residues inside the processing table, the disassembly and assembly mechanism being mounted inside the processing table; a smoke removal mechanism for absorbing smoke generated when the laser emitter is drilling holes, the smoke removal mechanism being mounted inside the processing table.

[0007] Preferably, the slag collecting mechanism includes a screw rod rotatably mounted on the inner side of the U-shaped frame, a moving block 1 cooperating with the screw rod 1 is fixedly mounted on the outer side of the laser emitter, a guide rod 1 slidingly penetrating the moving block 1 is fixedly mounted on the inner side of the U-shaped frame, and when the screw rod 1 rotates, it can drive the moving block 1 to move along the outer side of the guide rod 1, so as to achieve lateral position adjustment of the laser emitter, a driving motor is fixedly mounted on the outer side of the U-shaped frame, and the output end of the driving motor is fixedly connected to one end of the screw rod 1, a screw rod 2 located inside the processing table is rotatably mounted on the inner side of the U-shaped frame, and a screw rod located inside the processing table is rotatably mounted between the screw rod 1 and the screw rod 2. The synchronous belt inside the U-shaped frame, the screw rod 1 can drive the screw rod 2 to rotate synchronously through the synchronous belt, the outer side of the processing table is provided with a long groove for the limited sliding of the screw rod 2, the interior of the processing table is provided with a moving block 2 that cooperates with the screw rod 2, and the outer side of the moving block 2 is provided with a material receiving hopper, the material receiving hopper is located directly below the output end of the laser emitter, and is used to shield the sparks and residues generated when the laser emitter is drilling. Two guide rods 2 that symmetrically slide through the moving block 2 are fixedly installed on the inner side of the U-shaped frame, so that the screw rod 2 can drive the moving block 2 to move along the outer side of the guide rod 2, and keep the material receiving hopper directly below the laser emitter.

[0008] Preferably, the disassembly and assembly mechanism includes a material receiving barrel fixedly mounted on the bottom of the material receiving hopper for storing residues, two symmetrically distributed arc clamps are provided on the outside of the material receiving barrel for clamping and fixing the material receiving barrel, a slider is fixedly mounted on one end of the arc clamp, a U-shaped frame is provided on the outside of the slider, a bidirectional screw is rotatably mounted on the inside of the U-shaped frame, threads at both ends of the bidirectional screw respectively cooperate with the two sliders, two limit rods are fixedly mounted on the inside of the U-shaped frame and slide symmetrically through the slider, rotating the bidirectional screw can drive the two sliders to approach or separate, a support rod is fixedly mounted between the U-shaped frame and the moving block 2, and turntables are fixedly mounted on both ends of the bidirectional screw to facilitate adjustment of the bidirectional screw.

[0009] Preferably, the smoke removal mechanism includes an air suction head arranged at the bottom of the material receiving barrel, an air suction machine is fixedly installed on the outside of the processing table, and the air suction machine is connected to the air suction head through a rubber hose, and an air permeable plate is fixedly installed on the inner side of the bottom of the material receiving barrel, so that the air suction head can absorb the smoke generated by the laser transmitter through the material receiving barrel and the material receiving hopper, and a positioning frame is fixedly installed on the inner side of the top of the material receiving barrel, and a driven rod is rotatably installed between the positioning frame and the air permeable plate, and a plurality of scraping strips symmetrically distributed in the center are rotatably installed on the top of the driven rod, and the scraping strips are rotatably installed with the material receiving hopper. The inner sides of the hoppers are in contact with each other, and are used to scrape the residues on the inside of the receiving hopper into the receiving barrel. A threaded barrel is fixedly installed on the top of the suction head, and an external thread matching the threaded barrel is provided on the outer side of the receiving barrel. Two vertically distributed positioning strips are fixedly installed on the inner side of the suction head, and a fan is rotatably installed between the two positioning strips. The airflow in the suction head can drive the fan to rotate. A prismatic insert is fixedly installed on the bottom of the driven rod, and a slot for limiting the insertion of the prismatic insert is provided on the top of the central axis of the fan, so that the fan can drive the driven rod to rotate through the prismatic insert.

[0010] Preferably, a magnet ring is fixedly mounted on the top of the receiving hopper, the top of the magnet ring is in contact with the bottom of the supporting tooth plate, and the supporting tooth plate is made of metal to keep the receiving hopper close to the supporting tooth plate.

[0011] Preferably, pulleys are rotatably mounted on both ends of the second screw, and a slide groove for limiting the sliding of the pulley is provided on the inner side of the long groove of the processing table, thereby improving the stability of the movement of the second screw.

[0012] Preferably, a limit block located between the two sliders is fixedly installed on the inner side of the U-shaped frame, and a through hole is provided on the outer side of the limit block for the bidirectional screw and the limit rod to pass through, so as to prevent the two sliders from being too close.

[0013] Preferably, a plurality of positioning ribs symmetrically distributed in the center are fixedly mounted on the outer side of the receiving barrel, and a positioning groove cooperating with the positioning ribs is provided on the outer side of the arc clamp to facilitate the arc clamp to clamp the receiving barrel stably.

[0014] Preferably, a material taking port with a height greater than the sum of the heights of the material receiving barrel and the material receiving hopper is provided on the outer side of the processing table, for taking out the material receiving hopper and the material receiving barrel.

[0015] Preferably, a plurality of arc-shaped strips which are equidistantly distributed and in contact with the top of the air-permeable plate are fixedly mounted on the outer side of the driven rod and are used to scrape off the residue on the surface of the air-permeable plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention uses a slag collecting mechanism to catch sparks and residues generated at the punching point at the bottom of the sheet metal part when the laser transmitter is punching the sheet metal part, thereby preventing the sparks and residues from splashing, facilitating the collection of the residues, and solving the problem of residue accumulation, thereby achieving the effect of residue collection.

[0018] The present invention can clamp and fix the receiving cylinder for storing residues through the disassembly and assembly mechanism, and facilitates the taking out of the receiving cylinder and the receiving hopper, and takes out the stored residues, thereby improving the convenience of installing the receiving cylinder and the receiving hopper, thereby achieving the effect of facilitating cleaning and recycling.

[0019] The present invention can absorb the smoke generated by the laser transmitter when drilling through the smoke removal mechanism, so that the user can observe the drilling status of the sheet metal parts and make corresponding adjustments in time, and scrape the residue in the receiving barrel to prevent the residue from accumulating in the receiving barrel, thereby achieving the effect of suction and smoke prevention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the supporting tooth plate and the processing plate in the present invention;

[0022] Figure 3 It is a structural schematic diagram of the moving block 2 and the receiving hopper in the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the arc clamp and the receiving barrel in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the air permeable plate and the scraper strip in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the slider and the U-shaped frame in the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of the threaded cylinder and the suction head in the present invention;

[0027] Figure 8 It is a schematic diagram of the fan and prismatic insert structure in the present invention.

[0028] In the figure: 1. Device base; 2. Processing table; 3. Processing plate; 4. Support tooth plate; 5. Drive slide rail; 6. U-shaped frame; 7. Laser transmitter; 8. Screw rod 1; 9. Moving block 1; 10. Guide rod 1; 11. Drive motor; 12. Screw rod 2; 13. Synchronous belt; 14. Moving block 2; 15. Material receiving hopper; 16. Guide rod 2; 17. Material collecting barrel; 18. Arc clamp; 19. Slider; 2 0. U-shaped frame; 21. Bidirectional screw; 22. Limit rod; 23. Support rod; 24. Turntable; 25. Suction head; 26. Suction machine; 27. Magnet ring; 28. Breathable plate; 29. ​​Positioning frame; 30. Follower rod; 31. Scraper strip; 32. Prismatic insert strip; 33. Threaded barrel; 34. Positioning strip; 35. Fan; 36. Pulley; 37. Limit block; 38. Positioning rib strip; 39. Arc strip. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative inspiration are within the scope of protection of the present invention.

[0030] Example 1: Please refer to Figure 1-Figure 8 The sheet metal laser drilling device shown in the figure includes a device base 1 and a processing table 2 fixedly installed on the top of the device base 1, a processing plate 3 is fixedly installed on the top of the processing table 2, and a plurality of equidistantly distributed supporting tooth plates 4 are fixedly installed on the inner side of the processing plate 3 for placing sheet metal parts, driving slide rails 5 are fixedly installed on both sides of the processing table 2, a U-shaped frame 6 is fixedly installed between the two driving slide rails 5, a laser emitter 7 is arranged at the bottom of the U-shaped frame 6 for drilling the sheet metal parts on the supporting tooth plates 4, and the driving slide rail 5 can adjust the longitudinal position of the laser emitter 7 on the U-shaped frame 6; it also includes: a slag collecting mechanism for collecting the sheet metal residue generated by the laser emitter 7, and the slag collecting mechanism is installed inside the processing table 2; a disassembly and assembly mechanism for cleaning the residue inside the processing table 2, and the disassembly and assembly mechanism is installed inside the processing table 2; a smoke removal mechanism for absorbing the smoke generated when the laser emitter 7 is drilling, and the smoke removal mechanism is installed inside the processing table 2.

[0031] The slag collecting mechanism includes a screw 8 rotatably mounted on the inner side of the U-shaped frame 6, a moving block 9 matched with the screw 8 is fixedly mounted on the outer side of the laser emitter 7, a guide rod 10 slidingly penetrating the moving block 9 is fixedly mounted on the inner side of the U-shaped frame 6, and when the screw 8 rotates, it can drive the moving block 9 to move along the outer side of the guide rod 10 to achieve lateral position adjustment of the laser emitter 7, a driving motor 11 is fixedly mounted on the outer side of the U-shaped frame 6, and the output end of the driving motor 11 is fixedly connected to one end of the screw 8, a screw 2 12 located inside the processing table 2 is rotatably mounted on the inner side of the U-shaped frame 6, and a synchronous belt 1 located inside the U-shaped frame 6 is rotatably mounted between the screw 8 and the screw 2 12 3. The screw rod 18 can drive the screw rod 2 12 to rotate synchronously through the synchronous belt 13. A long strip groove for the limited sliding of the screw rod 2 12 is provided on the outer side of the processing table 2. A moving block 2 14 matched with the screw rod 2 12 is provided inside the processing table 2. A receiving hopper 15 is provided on the outer side of the moving block 2 14. The receiving hopper 15 is located directly below the output end of the laser emitter 7 and is used to shield the sparks and residues generated when the laser emitter 7 is punching. Two guide rods 2 16 that slide symmetrically through the moving block 2 14 are fixedly installed on the inner side of the U-shaped frame 6, so that the screw rod 2 12 can drive the moving block 2 14 to move along the outer side of the guide rod 2 16, and keep the receiving hopper 15 directly below the laser emitter 7;

[0032] When the driving motor 11 is running, it can drive the moving block 19 to move horizontally along the outer side of the guide rod 10 through the screw 18, and the moving block 9 drives the laser emitter 7 to move synchronously. At the same time, the screw 18 can drive the screw 2 12 to rotate synchronously through the synchronous belt 13, so that the screw 2 12 drives the moving block 2 14 to move horizontally along the outer sides of the two guide rods 2 16, and the moving block 2 14 drives the receiving hopper 15 to move synchronously, so that the movement of the receiving hopper 15 and the laser emitter 7 are kept consistent, so that the receiving hopper 15 can block the sparks and residues generated when the laser emitter 7 punches holes in the sheet metal, and prevent the sparks and residues from splashing, thereby achieving the effect of safety protection and residue collection.

[0033] The disassembly and assembly mechanism includes a material receiving barrel 17 fixedly installed at the bottom of the receiving hopper 15 for collecting residues. Two symmetrically distributed arc-shaped clamps 18 are arranged on the outer side of the material receiving barrel 17 for clamping and fixing the material receiving barrel 17. A slider 19 is fixedly installed at one end of the arc-shaped clamp 18. A U-shaped frame 20 is arranged on the outer side of the slider 19. A bidirectional screw 21 is rotatably installed on the inner side of the U-shaped frame 20. The threads at both ends of the bidirectional screw 21 are respectively matched with the two sliders 19. Two limit rods 22 that symmetrically slide through the slider 19 are fixedly installed on the inner side of the U-shaped frame 20. Rotating the bidirectional screw 21 can drive the two sliders 19 to move closer or away from each other. A support rod 23 is fixedly installed between the U-shaped frame 20 and the moving block 2 14. Turntables 24 are fixedly installed on both ends of the bidirectional screw 21 to facilitate the adjustment of the bidirectional screw 21.

[0034] The user can place the material receiving barrel 17 between the two arc-shaped clamps 18, rotate the turntable 24 to drive the bidirectional screw 21 to rotate, so that the bidirectional screw 21 drives the two sliders 19 to approach each other, and the slider 19 drives the arc-shaped clamp 18 to contact the outer side of the material receiving barrel 17, thereby clamping and fixing the material receiving barrel 17. Therefore, when the movable block 2 14 moves, it can drive the material receiving barrel 17 to move through the support rod 23 and the arc-shaped clamp 18, so that the material receiving barrel 17 drives the receiving hopper 15 to move synchronously, thereby improving the convenience of installing the material receiving barrel 17 and the receiving hopper 15. The collected residue can be cleaned by removing the material receiving barrel 17, thereby achieving the effect of facilitating cleaning and recycling.

[0035] The smoke removal mechanism includes an air suction head 25 arranged at the bottom of the material receiving barrel 17, an air suction machine 26 is fixedly installed on the outside of the processing table 2, and the air suction machine 26 is connected to the air suction head 25 through a rubber hose. A breathable plate 28 is fixedly installed on the inner side of the bottom of the material receiving barrel 17, so that the air suction head 25 can absorb the smoke generated by the laser emitter 7 through the material receiving barrel 17 and the receiving hopper 15. A positioning frame 29 is fixedly installed on the inner side of the top of the material receiving barrel 17, and a driven rod 30 is rotatably installed between the positioning frame 29 and the breathable plate 28. A plurality of scraping strips 31 symmetrically distributed at the top of the driven rod 30 are rotatably installed, and the scraping strips 31 are symmetrically distributed with respect to the inner side of the receiving hopper 15. The contact is used to scrape the residue inside the receiving hopper 15 into the receiving barrel 17. A threaded barrel 33 is fixedly installed on the top of the suction head 25. The outer side of the receiving barrel 17 is provided with an external thread that matches the threaded barrel 33. Two vertically distributed positioning strips 34 are fixedly installed on the inner side of the suction head 25. A fan 35 is rotatably installed between the two positioning strips 34. The airflow in the suction head 25 can drive the fan 35 to rotate. A prismatic insert 32 is fixedly installed on the bottom of the driven rod 30. A slot for the prismatic insert 32 to limit the insertion is provided on the top of the central axis of the fan 35, so that the fan 35 can drive the driven rod 30 to rotate through the prismatic insert 32.

[0036] The user aligns the external thread at the bottom of the receiving barrel 17 with the threaded barrel 33 on the suction head 25, rotates the receiving barrel 17 to achieve the docking of the suction head 25 and the receiving barrel 17, and the suction machine 26 causes the suction head 25 to suck air from the bottom of the receiving barrel 17 through the rubber hose, so that the smoke generated by the laser transmitter 7 can enter the suction head 25 through the receiving hopper 15, the receiving barrel 17 and the air permeable plate 28, so that the user can observe the punching of the sheet metal parts and make corresponding adjustments in time. At the same time, the generated airflow can drive the fan 35 to rotate, so that the fan 35 drives the driven rod 30 to rotate through the prismatic insert 32, and the driven rod 30 drives the scraper 31 to rotate along the inner side of the receiving hopper 15, and the residue received by the receiving hopper 15 is quickly collected into the receiving barrel 17 to prevent the residue from accumulating on the receiving hopper 15, thereby achieving the effect of suction smoke prevention and convenient material collection.

[0037] Working principle: First, the user places the sheet metal to be punched on the supporting tooth plate 4 of the processing plate 3, and starts the laser emitter 7 and the suction machine 26. The laser emitter 7 punches the sheet metal. The receiving hopper 15 on the inner side of the processing table 2 blocks the sparks and residues generated by the laser emitter 7 and the sheet metal, so that the residue can enter the receiving barrel 17. At the same time, the suction machine 26 uses the rubber hose to make the suction head 25 suck air from the bottom of the receiving barrel 17. The smoke generated by the laser emitter 7 punching holes in the sheet metal can pass through the receiving hopper 15, the receiving barrel 17 and the air permeable plate 28 to enter the suction head 25. At this time, the airflow generated by the suction head 25 drives the fan 35 to rotate, so that the fan 35 drives the driven rod 30 to rotate synchronously through the prismatic insert 32, and the driven rod 30 drives multiple scraping strips 31 to rotate along the inner side of the receiving hopper 15 to receive the sheet metal. The residue inside the hopper 15 is pushed into the material receiving barrel 17. Finally, the user starts the driving motor 11. The output end of the driving motor 11 drives the moving block 9 to move horizontally along the outer side of the guide rod 10 through the screw 18, so that the moving block 9 drives the laser emitter 7 to move synchronously, and the punching position of the laser emitter 7 is adjusted. At the same time, the screw 18 drives the screw 2 12 to rotate synchronously through the synchronous belt 13, so that the screw 2 12 drives the moving block 2 14 to move horizontally along the outer sides of the two guide rods 2 16. As a result, the moving block 2 14 drives the receiving hopper 15 to move synchronously through the support rod 23 and the arc clamp 18, so that the movement of the receiving hopper 15 and the laser emitter 7 are kept consistent, and the sparks and residues are blocked and collected, thereby achieving the effect of safety protection and residue collection, and improving the convenience of laser drilling.

[0038] Example 2: Please refer to Figure 2-Figure 6The present embodiment further explains the first embodiment. A magnet ring 27 is fixedly installed on the top of the receiving hopper 15 in the figure. The top of the magnet ring 27 contacts the bottom of the supporting tooth plate 4. The supporting tooth plate 4 is made of metal to keep the receiving hopper 15 close to the supporting tooth plate 4. Pulleys 36 are rotatably installed on both ends of the screw rod 12. A sliding groove for the pulley 36 to limit the sliding of the pulley 36 is provided on the inner side of the long groove of the processing table 2 to improve the stability of the movement of the screw rod 12. A limit block 37 located between the two sliders 19 is fixedly installed on the inner side of the U-shaped frame 20. A through hole is provided on the outer side of the limit block 37 for the bidirectional screw 21 and the limit rod 22 to pass through to prevent the two sliders 19 from being too close.

[0039] In this embodiment: the receiving hopper 15 can be attracted to the bottom of the supporting tooth plate 4 through the magnet ring 27, thereby improving the stability of the movement of the receiving hopper 15; when the screw rod 12 moves, it can drive the pulley 36 to move along the slide groove on the processing table 2, thereby improving the stability of the movement of the screw rod 12 and providing replication support for both ends of the screw rod 12; when the two sliders 19 approach each other, the receiving barrel 17 is clamped and fixed; the limit block 37 can prevent the two sliders 19 from moving too close, thereby preventing the receiving barrel 17 from being clamped and deformed.

[0040] Example 3: Please refer to Figure 2-Figure 5 This embodiment further explains other embodiments. The outer side of the receiving barrel 17 in the figure is fixedly installed with a plurality of positioning ribs 38 that are symmetrically distributed in the center. The outer side of the arc clamp 18 is provided with a positioning groove that matches the positioning rib 38, so that the arc clamp 18 can clamp the receiving barrel 17 stably. The outer side of the processing table 2 is provided with a material taking port whose height is greater than the sum of the heights of the receiving barrel 17 and the receiving hopper 15, which is used to take out the receiving hopper 15 and the receiving barrel 17. The outer side of the driven rod 30 is fixedly installed with a plurality of arc strips 39 that are equidistantly distributed and in contact with the top of the air permeable plate 28, which are used to scrape off the residue on the surface of the air permeable plate 28.

[0041] In this embodiment: when the two arc clamps 18 clamp the outer side of the material receiving barrel 17, the positioning grooves on the arc clamps 18 can be aligned with the positioning ribs 38 on the outer side of the material receiving barrel 17, so as to prevent the arc clamps 18 from rotating and skewing when pulling the material receiving barrel 17 to move, thereby improving the stability of the movement of the material receiving barrel 17; when the material receiving barrel 17 and the material receiving hopper 15 are moved to the material taking port of the processing table 2, the user can disassemble the material receiving barrel 17 and the material receiving hopper 15 through the material taking port, which is convenient for disassembly, cleaning and installation; when the driven rod 30 rotates, it can drive the arc strip 39 to move along the top of the air permeable plate 28, so as to scrape off the residue on the top of the air permeable plate 28, prevent the residue from accumulating on the air permeable plate 28, and facilitate the later pouring out of the residue in the material receiving barrel 17.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal laser drilling device, characterized in that: include: A device base (1) and a processing table (2) fixedly mounted on the top of the device base (1); a processing plate (3) is fixedly mounted on the top of the processing table (2); a plurality of supporting tooth plates (4) are fixedly mounted on the inner side of the processing plate (3) and are distributed at equal distances; driving rails (5) are fixedly mounted on both sides of the processing table (2); a U-shaped frame (6) is fixedly mounted between the two driving rails (5); and a laser emitter (7) is arranged at the bottom of the U-shaped frame (6); Also includes: A slag collecting mechanism is used to collect sheet metal residues generated by the laser emitter (7), the slag collecting mechanism is installed inside the processing table (2), the slag collecting mechanism includes a screw rod (8) rotatably installed on the inner side of the U-shaped frame (6), a moving block (9) matched with the screw rod (8) is fixedly installed on the outer side of the laser emitter (7), a guide rod (10) slidingly penetrating the moving block (9) is fixedly installed on the inner side of the U-shaped frame (6), a driving motor (11) is fixedly installed on the outer side of the U-shaped frame (6), the output end of the driving motor (11) is fixedly connected to one end of the screw rod (8), and a drive motor (11) is rotatably installed on the inner side of the U-shaped frame (6) The second screw (12) is inside the processing table (2), a synchronous belt (13) located inside the U-shaped frame (6) is rotatably installed between the first screw (8) and the second screw (12), a long groove for limiting the sliding of the second screw (12) is provided on the outside of the processing table (2), a moving block (14) matched with the second screw (12) is provided inside the processing table (2), a receiving hopper (15) is provided on the outside of the moving block (14), and the receiving hopper (15) is located directly below the output end of the laser transmitter (7), and two guide rods (16) are fixedly installed on the inside of the U-shaped frame (6) and symmetrically slide through the second moving block (14); A disassembly and assembly mechanism, used for cleaning the residue inside the processing table (2), the disassembly and assembly mechanism is installed inside the processing table (2), the disassembly and assembly mechanism comprises a material receiving barrel (17) fixedly installed at the bottom of the receiving hopper (15), two symmetrically distributed arc-shaped clamps (18) are arranged on the outside of the material receiving barrel (17), a slider (19) is fixedly installed at one end of the arc-shaped clamp (18), a U-shaped frame (20) is arranged on the outside of the slider (19), a bidirectional screw (21) is rotatably installed on the inside of the U-shaped frame (20), the threads at both ends of the bidirectional screw (21) are respectively matched with the two sliders (19), two limit rods (22) that symmetrically slide through the slider (19) are fixedly installed on the inside of the U-shaped frame (20), a support rod (23) is fixedly installed between the U-shaped frame (20) and the second moving block (14), and a turntable (24) is fixedly installed at both ends of the bidirectional screw (21); A smoke removal mechanism is used to absorb smoke generated when the laser emitter (7) is drilling a hole. The smoke removal mechanism is installed inside the processing table (2). The smoke removal mechanism includes an air suction head (25) arranged at the bottom of the material receiving barrel (17). An air suction machine (26) is fixedly installed on the outside of the processing table (2). The air suction machine (26) is connected to the air suction head (25) through a rubber hose. A breathable plate (28) is fixedly installed on the inner side of the bottom of the material receiving barrel (17). A positioning frame (29) is fixedly installed on the inner side of the top of the material receiving barrel (17). A driven rod (30) is rotatably installed between the positioning frame (29) and the breathable plate (28). The driven rod (30) ) is rotatably mounted on the top of a plurality of scraping strips (31) distributed symmetrically in the center, the scraping strips (31) are in contact with the inner side of the receiving hopper (15), a threaded barrel (33) is fixedly mounted on the top of the suction head (25), an outer side of the receiving barrel (17) is provided with an external thread matching the threaded barrel (33), two vertically distributed positioning strips (34) are fixedly mounted on the inner side of the suction head (25), a fan (35) is rotatably mounted between the two positioning strips (34), a prismatic insert (32) is fixedly mounted on the bottom of the driven rod (30), and a slot for limiting insertion of the prismatic insert (32) is provided on the top of the central axis of the fan (35).

2. A sheet metal laser drilling device according to claim 1, characterized in that: A magnet ring (27) is fixedly mounted on the top of the receiving hopper (15); the top of the magnet ring (27) is in contact with the bottom of the supporting tooth plate (4); and the supporting tooth plate (4) is made of metal.

3. The sheet metal laser drilling device according to claim 1, characterized in that: Pulleys (36) are rotatably mounted on both ends of the second screw rod (12), and a slide groove for limiting the sliding of the pulley (36) is provided on the inner side of the long groove of the processing table (2).

4. The sheet metal laser drilling device according to claim 1, characterized in that: A limit block (37) located between the two sliding blocks (19) is fixedly mounted on the inner side of the U-shaped frame (20), and a through hole is provided on the outer side of the limit block (37) for the bidirectional screw rod (21) and the limit rod (22) to pass through.

5. The sheet metal laser drilling device according to claim 1, characterized in that: A plurality of positioning ribs (38) distributed symmetrically with respect to the center are fixedly mounted on the outer side of the receiving barrel (17), and a positioning groove matching with the positioning ribs (38) is provided on the outer side of the arc-shaped clamp (18).

6. The sheet metal laser drilling device according to claim 1, characterized in that: The outer side of the processing table (2) is provided with a material taking port, the height of which is greater than the sum of the heights of the material receiving cylinder (17) and the material receiving hopper (15).

7. The sheet metal laser drilling device according to claim 1, characterized in that: A plurality of arc-shaped strips (39) which are equidistantly distributed and in contact with the top of the air-permeable plate (28) are fixedly mounted on the outer side of the driven rod (30).

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