Laser welding device for machining automobile air filter shell

Abstract

The invention discloses a laser welding device for machining an automobile air filter shell, which comprises a workbench, a welding frame is fixedly mounted at the top of the workbench, a telescopic laser welding head is fixedly mounted on one side, close to the workbench, of the welding frame, a mounting groove is formed in the workbench, a filter assembly is arranged in the workbench, and a laser welding head is fixedly mounted on the mounting groove. The filtering assembly comprises a collecting groove formed in the inner bottom wall of the mounting groove, and a cooling assembly is arranged on the welding frame. The cooling assembly comprises a vertical plate installed on the top of the welding frame, a second connecting rod is rotationally connected to the vertical plate, a third connecting rod is rotationally installed at the end, away from the laser welding head, of the second connecting rod, and a protruding block with a connecting plate is rotationally installed at the other end of the third connecting rod. And double-sided cooling is facilitated, and the working efficiency of heat dissipation and cooling of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of laser welding equipment technology, specifically to a laser welding device for processing automotive air filter housings. Background Technology

[0002] The core function of an automotive air filter is to intercept particulate impurities in the air inside the vehicle. An automotive cabin air filter, on the other hand, prevents pollutants from entering the vehicle through the heating, ventilation, and air conditioning systems, thus avoiding the inhalation of harmful pollutants by passengers. Together, they ensure clean air inside the vehicle and protect the health of passengers. In the manufacturing process of the automotive air filter housing, the plastic laser welding device is a key piece of equipment. This device relies on a laser beam to melt the plastic contact surfaces, achieving reliable bonding of the thermoplastic material, and is the core process step in housing molding.

[0003] Existing technological defects Existing plastic laser welding equipment generally adopts a single-sided cooling design and lacks a structure configuration for double-sided synchronous spray cooling. In the single-sided cooling mode, the heat dissipation path of the equipment is singular, and heat is easily accumulated in the welding area and inside the equipment, which greatly weakens the overall heat dissipation and cooling capacity. Insufficient heat dissipation efficiency directly leads to the equipment needing to be shut down frequently for cooling, prolonging the cycle of a single welding operation. This not only reduces the efficiency of heat dissipation and cooling work, but also seriously restricts the continuous welding production efficiency of the equipment, making it difficult to meet the mass production needs of shell processing.

[0004] Technical improvement directions To address the core issues of existing equipment, such as single-sided cooling, low heat dissipation efficiency, and limited production efficiency, a laser welding device for processing automotive air filter housings is proposed. This device optimizes the cooling system structure by adding a symmetrical double-sided spray cooling component, achieving bidirectional synchronous heat dissipation in the welding area and key equipment components. This improves the uniformity and efficiency of heat dissipation, reduces downtime for cooling, ensures continuous and stable operation of the device, and ultimately enhances the welding efficiency and product quality of automotive air filter housings. Summary of the Invention

[0005] The purpose of this invention is to provide a laser welding apparatus for processing automotive air filter housings, so as to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions: A laser welding device for processing automotive air filter housings includes a worktable, a welding frame fixedly mounted on the top of the worktable, a retractable laser welding head fixedly mounted on the side of the welding frame near the worktable, an installation groove provided in the worktable, a filter assembly provided in the worktable, the filter assembly including a collection groove provided in the bottom wall of the installation groove, and a cooling assembly provided on the welding frame. The cooling assembly includes a vertical plate mounted on top of the welding frame. A second connecting rod is rotatably connected to the vertical plate. A third connecting rod is rotatably mounted at the end of the second connecting rod away from the laser welding head. A protrusion with a connecting plate is rotatably mounted at the other end of the third connecting rod. An extension plate with a groove is fixedly mounted on the side of the welding frame away from the laser welding head and close to the worktable. Sliding rods are fixedly mounted at both ends of the connecting plate. The end of the sliding rod away from the connecting plate slides through the mounting groove and is fixedly mounted with a pressing plate. A water bladder with a one-way water outlet pipe is fixedly mounted in the mounting groove. A spray head is provided on the side of the worktable close to the welding frame. A retractable spray plate is fixedly mounted on the side of the welding frame close to the spray head.

[0007] By adopting the above technical solution, the effect of double-sided cooling of the welded shell was achieved.

[0008] As a further embodiment of the present invention: the ends of the two unidirectional water outlet pipes away from the water bladder are respectively connected and installed in the spray plate and the spray head; a unidirectional water inlet pipe is connected and installed on the side of the water bladder away from the laser welding head; the other end of the unidirectional water inlet pipe is connected and installed in the collection tank; and the extrusion plate is fixedly installed on the top of the water bladder.

[0009] By adopting the above technical solution, the effect of water supply and cooling by squeezing the water bag was achieved.

[0010] As a further aspect of the present invention: a rectangular through hole is provided on the welding frame near the laser welding head, a rotating disk is rotatably installed in the rectangular through hole, a first connecting rod is rotatably installed at one end of the second connecting rod near the rotating disk, a fixing plate is rotatably installed at the other end of the first connecting rod, a sliding column is fixedly installed on the side of the second connecting rod near the rotating disk, and a dual-axis motor is fixedly installed on the top of the welding frame near the rotating disk, one of the output ends of the dual-axis motor is fixedly installed on the rotating disk at a position away from the center.

[0011] By adopting the above technical solution, the deflection motion of the rotating disk is used to drive the second connecting rod to perform lever motion.

[0012] As a further aspect of the present invention: an annular groove is provided on the rotating disk, the sliding column is slidably installed in the annular groove, the second connecting rod is installed between the first connecting rod and the rotating disk, the fixing plate is fixedly installed on the top of the welding frame, the protrusion is slidably installed in the groove, the connecting plate is fixedly installed on the side of the protrusion away from the groove, and the groove is opened on the side of the extension plate away from the laser welding head.

[0013] By adopting the above technical solution, the sliding column can slide in the annular groove and drive the second connecting rod to perform lever motion.

[0014] As a further embodiment of the present invention: a fixing block is fixedly installed at one end of the welding frame, and pulleys are rotatably installed on both the fixing block and one side of the worktable. A belt is sleeved between the two pulleys. The other output end of the dual-axis motor, away from the rotating disk, rotates through the fixing block and is fixedly installed on one of the pulleys. A fan is rotatably installed on the inner wall of the mounting groove near the pulley. The rotating shaft of the other pulley rotates through the mounting groove and is fixedly installed on the fan. Multiple heat dissipation aluminum fins are fixedly installed on the inner top wall of the mounting groove.

[0015] By adopting the above technical solution, the function of using a fan to blow air onto the heat sink aluminum fins for further heat dissipation is achieved.

[0016] As a further aspect of the present invention: the filter assembly includes a flow guide groove formed on the side of the welding frame near the spray head, a sliding roller is rotatably installed between the inner walls of the flow guide groove, a plurality of filter holes are formed on the side of the flow guide groove near the heat dissipation aluminum fin, a filter plate is slidably installed in the collection groove, a condenser rod is fixedly installed in the collection groove, and a temperature controller is fixedly installed on the side of the workbench near the filter plate.

[0017] By adopting the above technical solution, the condenser rod is used to cool the collected filtered water.

[0018] As a further embodiment of the present invention: a sliding groove is provided in the collection tank, the filter plate is slidably installed in the sliding groove, a rotating plate is rotatably installed on the side of the workbench near the temperature controller, the temperature controller and the condensing rod are electrically connected, the condensing rod is installed below the filter plate, and the spray head is fixedly installed on the inner bottom wall of the guide channel.

[0019] By adopting the above technical solution, the rotating plate is used to limit the position of the filter plate, which facilitates the installation and disassembly of the filter plate.

[0020] As a further aspect of the present invention: the laser welding head is provided with a clamping assembly, the clamping assembly including a mounting plate fixedly installed on the telescopic end of the laser welding head, a protective frame fixedly installed on the side of the mounting plate near the worktable, a squeezing roller rotatably installed on the end of the protective frame away from the laser welding head, a scraper fixedly installed on the side of the protective frame away from the mounting plate, a storage groove is provided on the side of the scraper near the worktable, and a retractable oiling brush is fixedly installed in the storage groove.

[0021] By adopting the above technical solution, the function of the scraper blade to scrape dust off the extrusion roller is realized.

[0022] As a further embodiment of the present invention: the scraper is fixedly installed between the laser welding head and the extrusion roller; a guide rod is fixedly installed on the inner wall of the protective frame; a toggle plate is slidably installed through the guide rod; a spring and a connecting rope are fixedly installed on the side of the toggle plate away from the belt; ash guide hoppers are rotatably connected to both sides of the protective frame; and a collection box is slidably installed in the mounting groove.

[0023] By adopting the above technical solution, the function of the actuating plate in cleaning the dust scraped by the extrusion roller is achieved. As a further embodiment of the present invention: the end of the ash guide hopper away from the protective frame is inserted into the collection box; the end of the spring away from the actuating plate is fixedly installed on the inner wall of the protective frame; the spring is nested on the outer surface of the guide rod; and the end of the connecting rope away from the actuating plate slides through the protective frame and the welding frame and is fixedly installed on the end of the first connecting rod away from the fixed plate.

[0024] By adopting the above technical solution, the guide rod and spring are able to achieve the effect of elastically resetting the actuating plate.

[0025] Compared with the prior art, the beneficial effects of the present invention are: the laser welding device for processing automotive air filter housings, (1) Double-sided spray cooling improves heat dissipation and production efficiency. The cooling assembly generates power through the up-and-down swing of the second connecting rod, continuously squeezing the water bladder. Under pressure, the cooling water inside the bladder is precisely delivered through a one-way outlet pipe to symmetrically arranged spray heads and spray plates, forming a bidirectional synchronous spray structure that provides comprehensive cooling of the air filter housing during the welding process. This double-sided spray design avoids the heat dissipation blind spots of traditional single-sided cooling, allowing the welding area of ​​the housing and surrounding components to cool down evenly, significantly improving the heat dissipation and cooling capacity and efficiency of the device. Efficient heat dissipation reduces downtime caused by overheating, ensuring continuous and stable welding operations, significantly improving the welding production efficiency of the device, and reducing the adverse effects of high temperatures on the plastic material of the housing, indirectly improving the welding quality of the product.

[0026] (2) Water circulation filtration and reuse optimizes cooling effect and resource utilization. The filtration system is specifically designed for the cooling water after spraying. It quickly collects the used cooling water through a water collection structure, and then removes impurities such as welding dust and plastic debris from the water through the built-in filtration unit, ensuring water cleanliness. The filtered cooling water enters the condensation and cooling module, where it is quickly cooled to the optimal temperature for welding cooling. It is then replenished to the water tank through a one-way inlet pipe, forming a closed-loop water circulation system. This design not only enables the reuse of water resources and reduces production water costs, but also ensures that the spray cooling water is always at a stable low temperature, avoiding the reduction of cooling effect due to water temperature rise, further improving the cooling efficiency of the device, and reducing wastewater discharge, which meets the requirements of green production.

[0027] (3) Automatically remove impurities to ensure the stability of compression and fusion. While clamping and positioning the housing for welding, the clamping assembly, powered by the up-and-down movement of the first connecting rod, drives the actuating plate to perform a reciprocating motion. The actuating plate precisely acts on the cleaning and squeezing rollers, thoroughly cleaning and removing welding dust and impurities scraped from the rollers. The removed impurities are then guided by the dust guide hopper and collected into the collection box, achieving automated cleaning and collection of impurities. This structure effectively prevents impurities from accumulating on the squeezing rollers or welding area, ensuring the uniformity of the clamping force and the flexibility of the movement of the clamping assembly, thereby improving the clamping and fusion quality of the housing. At the same time, it reduces the frequency of manual cleaning, improves the efficiency of the cleaning and collection work, and indirectly ensures the continuity of welding operations.

[0028] (4) Flexibly adjust water supply to adapt to production needs in multiple scenarios The adjustment component can flexibly adjust the fulcrum position of the vertical plate on the second connecting rod via threaded adjustment. The change in the fulcrum position will directly adjust the squeezing force and squeezing stroke of the second connecting rod when it swings, thereby precisely controlling the amount of cooling water delivered by the water bag to the spray head and spray plate through the one-way water outlet pipe. This adjustable design allows the device to flexibly switch the water supply according to the welding requirements of air filter housings of different specifications and thicknesses, as well as the heat dissipation requirements under different welding conditions. This avoids insufficient cooling due to insufficient water supply, and also prevents resource waste or impact on welding effect due to excessive water supply. It significantly improves the device's flexibility and applicability, while ensuring a precise match between spray cooling effect and work efficiency, adapting to the diverse processing needs in mass production. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of a laser welding device for processing automotive air filter housings according to the present invention; Figure 2 yes Figure 1 Enlarged structural diagram at point A; Figure 3 yes Figure 1Enlarged structural diagram at point B; Figure 4 yes Figure 1 Enlarged structural diagram at point C; Figure 5 This is a schematic diagram of the internal structure of a laser welding device for processing automotive air filter housings according to the present invention; Figure 6 yes Figure 5 Enlarged structural diagram at point D; Figure 7 This is a bottom view structural schematic diagram of a laser welding device for processing automotive air filter housings according to the present invention; Figure 8 yes Figure 7 Enlarged structural diagram at point E; Figure 9 This is a top view of the cooling component in a laser welding device for processing automotive air filter housings according to the present invention. Figure 10 This is a side view of the cooling component in a laser welding device for processing automotive air filter housings according to the present invention. Figure 11 This is a schematic diagram of the overall structure of the clamping component in a laser welding device for processing automotive air filter housings according to the present invention; Figure 12 This is a bottom view of the clamping component in a laser welding device for processing automotive air filter housings according to the present invention. Figure 13 yes Figure 12 Enlarged structural diagram at point F; Figure 14 This is a side view of the water bladder in a laser welding device for processing automotive air filter housings according to the present invention. Figure 15 This is a bottom view of the water bladder in a laser welding device for processing automotive air filter housings according to the present invention.

[0030] In the diagram: 1. Workbench; 2. Welding frame; 3. Laser welding head; 4. Cooling assembly; 41. Rectangular through hole; 42. Spray head; 43. Fixing plate; 44. First connecting rod; 45. Second connecting rod; 46. Rotating disk; 47. Sliding column; 48. Dual-axis motor; 49. Third connecting rod; 410. Extension plate; 411. Groove; 412. Protrusion; 413. Connecting plate; 414. Sliding rod; 415. Extrusion plate; 416. Pulley; 417. Belt; 418. Fan; 419. Fixing block; 420. Water bladder; 421. Spray plate; 422. One-way water inlet pipe; 423. One-way water outlet pipe; 424. Vertical plate; 425. Heat sink aluminum fin; 5. Clamping assembly Components; 51. Mounting plate; 52. Protective frame; 53. Extrusion roller; 54. Ash guide hopper; 55. Ash scraper; 56. Actuating plate; 57. Guide rod; 58. Spring; 59. Connecting rope; 510. Collection box; 511. Storage trough; 512. Oiling brush; 6. Filter assembly; 61. Collection trough; 62. Guide trough; 63. Sliding roller; 64. Filter hole; 65. Condensing rod; 66. Temperature controller; 67. Rotating plate; 68. Filter plate; 69. Slide chute; 7. Adjustment assembly; 71. Adjustment trough; 72. Adjustment screw; 73. Moving block; 74. Limiting plate; 75. Drive motor; 76. Waist-shaped through hole; 77. Sliding block; 78. Limiting block; 8. Mounting groove. Detailed Implementation

[0031] 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.

[0032] Please see Figure 1 - Figure 15 As shown, the present invention is a laser welding device for processing automotive air filter housings, including a worktable 1, a welding frame 2 fixedly installed on the top of the worktable 1, a retractable laser welding head 3 fixedly installed on the side of the welding frame 2 near the worktable 1, an electric telescopic rod installed on the welding frame 2 to facilitate the extension and retraction adjustment of the laser welding head 3, an installation groove 8 is provided in the worktable 1 for installing a fan 418 to facilitate rapid heat dissipation and cooling of the bottom of the welded air filter housing, a filter assembly 6 is provided in the worktable 1, the filter assembly 6 includes a collection groove 61 opened in the bottom wall of the installation groove 8 for collecting cooling water, and a cooling assembly 4 is provided on the welding frame 2; Cooling assembly 4 includes a vertical plate 424 fixedly mounted on the top of welding frame 2. A second connecting rod 45 is rotatably connected to the vertical plate 424. A third connecting rod 49 is rotatably mounted on the end of the second connecting rod 45 away from the laser welding head 3. A protrusion 412 with a connecting plate 413 is rotatably mounted on the other end of the third connecting rod 49. An extension plate 410 with a groove 411 is fixedly mounted on the side of the welding frame 2 away from the laser welding head 3 and close to the worktable 1. The protrusion 412 is slidably mounted in the groove 411. The connecting plate 413 is fixedly mounted on the side of the protrusion 412 away from the laser welding head 3 and close to the worktable 1. On the side away from the groove 411, the groove 411 is formed on the side of the extension plate 410 away from the laser welding head 3. Slide rods 414 are fixedly installed at both ends of the connecting plate 413. The end of the slide rod 414 away from the connecting plate 413 slides through the mounting groove 8 and is fixedly installed with a pressing plate 415. The slide rod 414 slides downwards on the worktable 1, driving the pressing plate 415 to press the water bladder 420, causing the water in the water bladder 420 to flow through the one-way water outlet pipe 423 to the spray head 42 and the spray plate 421 respectively, facilitating the pressing of the air filter housing after welding. The system provides simultaneous cooling from both the top and bottom surfaces via spraying. A water bladder 420 with a one-way water outlet pipe 423 is fixedly installed inside the mounting groove 8. A compression plate 415 is fixedly installed on the top of the water bladder 420 to facilitate compression and stretching. A spray head 42 is located on the side of the workbench 1 near the welding frame 2, allowing for cooling of the bottom surface of the air filter housing. A retractable spray plate 421 is fixedly installed on the side of the welding frame 2 near the spray head 42, allowing for cooling of the top surface of the air filter housing. Spray cooling is achieved by connecting two one-way water outlet pipes 423 at the ends away from the water bladder 420 to the spray plate 421 and the spray head 42, respectively. A one-way water inlet pipe 422 is connected to the side of the water bladder 420 away from the laser welding head 3. The other end of the one-way water inlet pipe 422 is connected to the collection tank 61. When the water bladder 420 is squeezed, water is supplied to the one-way water outlet pipe 423. When the water bladder 420 is stretched and reset, it is easy to draw water from the collection tank 61 into the water bladder 420 through the one-way water inlet pipe 422, which is convenient for subsequent squeezing to supply water to the one-way water outlet pipe 423. A rectangular through hole 41 is provided on the welding frame 2 near the laser welding head 3. A rotating disk 46 is rotatably installed in the rectangular through hole 41. A first connecting rod 44 is rotatably installed on one end of the second connecting rod 45 near the rotating disk 46. The first connecting rod 44 supports the second connecting rod 45. A fixing plate 43 is rotatably installed on the other end of the first connecting rod 44. The fixing plate 43 is fixedly installed on the top of the welding frame 2 and supports the first connecting rod 44. A sliding column 47 is fixedly installed on the side of the second connecting rod 45 near the rotating disk 46. An annular groove is provided on the rotating disk 46, and the sliding column 47 is slidably installed in the annular groove. A dual-axis motor 48 is fixedly installed on the top of the welding frame 2 near the rotating disk 46. One output end of the dual-axis motor 48 is fixedly installed on the rotating disk 46 away from the center. The dual-axis motor 48 is fixedly connected to the rotating disk 46. At the edge position away from the center, the rotating disk 46 is driven to perform eccentric circular motion. The second connecting rod 45 is installed between the first connecting rod 44 and the rotating disk 46. A fixing block 419 is fixedly installed at one end of the welding frame 2. Pulleys 416 are rotatably installed on both the fixing block 419 and one side of the worktable 1. A belt 417 is sleeved between the two pulleys 416. The other output end of the dual-axis motor 48, away from the rotating disk 46, rotates through the fixing block 419 and is fixedly installed on one of the pulleys 416. A fan 418 is rotatably installed on the inner wall of the mounting groove 8 near the pulley 416. The rotating shaft of the other pulley 416 rotates through the mounting groove 8 and is fixedly installed on the fan 418. The other output end of the dual-axis motor 48 drives the fan 418 in the mounting groove 8 through the pulley 416 and the belt 417. The internal rotation causes the fan 418 to blow air onto the heat dissipation fins 425, improving the heat dissipation capacity of the heat dissipation fins 425. Multiple heat dissipation fins 425 are fixedly installed on the inner top wall of the mounting slot 8. The heat dissipation fins 425 facilitate the rapid dissipation of heat from the workbench 1, facilitate auxiliary spray cooling for heat dissipation of the workbench 1, facilitate double-sided heat dissipation of the welded air filter housing, and facilitate the use of the up-and-down swinging power of the second connecting rod 45 to squeeze the water bladder 420, so that the water in the water bladder 420 is sprayed onto the air filter housing through the one-way water outlet pipe 423 from the spray head 42 and the spray plate 421 for cooling and heat dissipation. This facilitates spray cooling and heat dissipation, which is beneficial to improving the heat dissipation and cooling capacity of the device, improving the heat dissipation and cooling efficiency of the device, and improving the welding production efficiency of the device.

[0033] Please see Figure 1 , Figure 3 , Figure 5 , Figure 7 and Figure 8As shown, the filter assembly 6 includes a guide channel 62 formed on the side of the welding frame 2 near the spray head 42. The guide channel 62 serves to guide and collect the water sprayed from the spray plate 421 and the spray head 42. A sliding roller 63 is rotatably mounted between the inner walls of the guide channel 62. The sliding roller 63 and the connecting plate 413 are installed in the same direction. The sliding roller 63 reduces the friction between the air filter housing and the workbench 1, and also supports the air filter housing, facilitating the spray head 42 to spray and cool the air filter housing. Multiple filter holes 64 are provided on the side of the flow channel 62 near the heat sink aluminum fin 425. The filter holes 64 facilitate the flow of water collected in the flow channel 62 into the installation groove 8. The water flowing into the installation groove 8 is filtered by the filter plate 68 and finally collects into the collection groove 61. The filter plate 68 is slidably installed in the collection groove 61, and the filter plate 68 filters the water collected in the collection groove 61. A condenser rod 65 is fixedly installed in the collection groove 61, and the condenser rod 65 cools the sprayed water collected in the collection groove 61. The water, cooled by the spray, absorbs heat from the air filter housing. A temperature controller 66 is fixedly installed on the side of the workbench 1 near the filter plate 68. The temperature controller 66 is electrically connected to the condenser rod 65. The temperature controller 66 controls the degree of cooling of the collection tank 61 by the condenser rod 65. A sliding groove 69 is provided in the collection tank 61, and the filter plate 68 is slidably installed in the sliding groove 69. A rotating plate 67 is rotatably installed on the side of the workbench 1 near the temperature controller 66. The rotating plate 67 limits the position of the filter plate 68. The condenser rod 65 is installed below the filter plate 68. The spray head 42 is fixedly installed on the inner bottom wall of the guide groove 62, which facilitates spray cooling of the bottom surface of the air filter housing and facilitates the collection and filtration of the cooled water. The water is then condensed and cooled. Water is supplied to the water bag 420 through the one-way water inlet pipe 422, which facilitates water circulation and achieves the cooling effect. This improves the collection and filtration capacity of the device, enhances the water circulation capacity, and improves the cooling efficiency of the device.

[0034] Please see Figure 1 , Figure 4 , Figure 11 , Figure 12 and Figure 13As shown, a clamping assembly 5 is provided on the laser welding head 3. The clamping assembly 5 includes a mounting plate 51 fixedly installed on the telescopic end of the laser welding head 3. When the laser welding head 3 telescopically moves, the mounting plate 51 drives the extrusion roller 53 to move synchronously through the protective frame 52. The protective frame 52 is fixedly installed on the side of the mounting plate 51 closest to the worktable 1, and the extrusion roller 53 is rotatably installed on the end of the protective frame 52 away from the laser welding head 3. The extrusion roller 53 plays the role of clamping and fusing the air filter housing after laser melting. A scraper 55 is fixedly installed on the side of the protective frame 52 away from the mounting plate 51. During the process of clamping the air filter housing, the extrusion roller 53 is prone to sticking to residual dust and impurities. The scraper 55 facilitates scraping away dust and impurities during the rotation of the extrusion roller 53. The scraper 55 is used for cleaning. The end of the scraper 55 furthest from the laser welding head 3 slides against the side of the extrusion roller 53, facilitating the removal of residual impurities from the extrusion roller 53. A storage groove 511 is provided on the side of the scraper 55 closest to the worktable 1. A retractable oiling brush 512 is fixedly installed in the storage groove 511. An electric telescopic rod is fixedly installed on the oiling brush 512, allowing for easy control of the distance between the oiling brush 512 and the extrusion roller 53. The scraper 55 is fixedly installed between the laser welding head 3 and the extrusion roller 53. A guide rod 57 is fixedly installed on the inner wall of the protective frame 52. A deflector plate 56 is slidably installed through the guide rod 57, guiding the deflector plate 56. The bottom surface of the deflector plate 56 slides against the top surface of the scraper 55, facilitating the removal of impurities. The impurities scraped by the scraper blade 55 are moved onto the guide hopper 54, which then transports the impurities to the collection box 510. A deflector plate 56 is installed between the laser welding head 3 and the extrusion roller 53. A spring 58 and a connecting rope 59 are fixedly installed on the side of the deflector plate 56 away from the belt 417. The end of the connecting rope 59 away from the deflector plate 56 slides through the protective frame 52 and the welding frame 2 and is fixedly installed on the end of the first connecting rod 44 away from the fixed plate 43. When the first connecting rod 44 moves upward, it pulls the connecting rope 59, causing it to slide on the welding frame 2 and the protective frame 52, and pulling the deflector plate 56 to slide on the guide rod 57, facilitating the removal and cleaning of impurities and dust on the scraper blade 55. Guide hoppers 54 are rotatably connected to both sides of the protective frame 52, and mounting grooves are also installed. A collection box 510 is slidably installed inside the 8-section. The collection box 510 collects the dust and impurities guided down by the dust guide hopper 54. The end of the dust guide hopper 54 away from the protective frame 52 is inserted into the collection box 510. The end of the spring 58 away from the actuating plate 56 is fixedly installed on the inner wall of the protective frame 52. The spring 58 is nested on the outer surface of the guide rod 57. The guide rod 57 supports and stabilizes the spring 58, facilitating the use of the force of the up-and-down movement of the first connecting rod 44 to drive the actuating plate 56 to reciprocate and clean the dust and impurities scraped off the extrusion roller 53. This facilitates the collection of dust and impurities through the dust guide hopper 54 into the collection box 510. It also facilitates the removal of paint oil from the extrusion roller 53, improving the scraping and cleaning ability of the device and increasing the efficiency of the cleaning and collection work.This helps improve the efficiency of the device's pressing and fusion operation.

[0035] Please see Figure 1 - Figure 3 As shown, an adjustment component 7 is provided based on the above. The adjustment component 7 is located on the top of the welding frame 2. The adjustment component 7 includes an adjustment groove 71 opened on the top of the welding frame 2. An adjustment screw 72 is rotatably installed in the adjustment groove 71. A moving block 73 is threaded through the adjustment screw 72. A limit plate 74 is fixedly installed on the top of the moving block 73. The adjustment screw 72 drives the moving block 73 to move and adjust within the adjustment groove 71, causing the moving block 73 to drive the limit plate 74 to slide on the welding frame 2. The upright plate 424 is fixedly installed on the side of the limit plate 74 away from the moving block 73. A waist-shaped through hole 76 is opened on the second connecting rod 45. A slider 77 is slidably installed through the waist-shaped through hole 76. A limit block 78 is fixedly installed on the side of the slider 77 away from the upright plate 424. The end of the slider 77 away from the limit block 78 is rotatably installed on the upright plate 424, causing the limit plate 74 to drive the slider 77 to slide on the waist-shaped through hole 76 via the upright plate 424. The rectangular through hole 76 moves within the welded frame 2. A drive motor 75 is fixedly installed on the side of the welding frame 2 near the third connecting rod 49. The output end of the drive motor 75 rotates through the adjusting groove 71 and is fixedly installed on the adjusting screw 72. The first connecting rod 44 and the second connecting rod 45 are installed between the fixed plate 43 and the upright plate 424. The rectangular through hole 41 and the adjusting groove 71 are in the same straight line direction, which facilitates the adjustment of the position of the upright plate 424 on the second connecting rod 45. It is also convenient to control the amplitude of the up and down movement of the second connecting rod 45 driving the third connecting rod 49, and thus facilitates the adjustment of the degree of compression of the water bag 420. Therefore, it is convenient to adjust and control the amount of water supplied by the water bag 420 to the spray head 42 and the spray plate 421 through the one-way water outlet pipe 423, which facilitates the adjustment and control of the amount of spray water, facilitates flexible adjustment and operation, improves the flexibility and applicability of the device, and improves the working efficiency of the device's spray cooling.

[0036] The working principle of this invention is as follows: When using the device, first, place the car air filter housing to be welded below the laser welding head 3. Then, insert the filter plate 68 into the slide groove 69. Next, rotate the rotating plate 67 to limit the filter plate 68. Then, start the temperature controller 66 to electrically control the condenser rod 65 to cool the water in the collection tank 61. Then, start the laser welding head 3 to move downwards. The laser welding head 3 drives the extrusion roller 53 downwards through the mounting plate 51 and the protective frame 52, so that the distance between the extrusion roller 53 and the worktable 1 is equal to the thickness of the car air filter housing. Then, start the laser welding head 3 to perform laser melting welding on the joint of the two car air filter housings. Simultaneously, the extrusion roller 53 moves continuously, causing it to rotate on the protective frame 52 and press the two molten car air filter housings together. As the extrusion roller 53 rotates downwards, the scraper 55 scrapes away any remaining impurities on it, and the scraped impurities accumulate on the scraper 55. At the same time, the extrusion roller 53 is coated with anti-sticking oil by the oiling brush 512. Simultaneously, the spray plate 421 moves downwards above the air filter housings. After being pressed by the extrusion roller 53, the two car air filter housings move onto the sliding roller 63. Simultaneously, the dual-axis motor 48 is activated, causing one output end of the motor to drive the rotating disk 46 to perform eccentric circular motion within the rectangular through-hole 41. (The rotating disk 46 rotates...) One rotation causes the second connecting rod 45 to move up and down once, causing the rotating disk 46 to slide in the annular groove through the sliding column 47 and drive the second connecting rod 45 to move upward. The second connecting rod 45 causes the first connecting rod 44 to swing on the fixed plate 43, causing the first connecting rod 44 to pull the connecting rope 59 upward. The connecting rope 59 slides on the welding frame 2 and the protective frame 52 and pulls the actuating plate 56, causing the actuating plate 56 to slide on the guide rod 57 and compress the spring 58, putting the spring 58 in a compressed state. At the same time, the actuating plate 56 sweeps the dust accumulated on the scraper plate 55 into the dust guide hopper 54, allowing the dust to flow into the collection box 510 under the inclined state of the dust guide hopper 54. The second connecting rod 45 uses the lever principle with the vertical plate 424 as the fulcrum, causing... The other end of the second connecting rod 45 drives the third connecting rod 49 to move downward, causing the third connecting rod 49 to drive the protrusion 412 to slide downward in the groove 411. The protrusion 412 drives the slide rod 414 to slide downward on the worktable 1 through the connecting plate 413. At the same time, the slide rod 414 drives the extrusion plate 415 to extrude the water bag 420 downward. The water in the water bag 420 is sprayed onto the welded and pressed air filter housing through the one-way water outlet pipe 423, sprayed through the spray head 42 and the spray plate 421 respectively, for cooling. At the same time, the water on the air filter housing flows into the guide groove 62 through the sliding roller 63. The water is filtered through the filter hole 64 and the filter plate 68 and collected into the collection tank 61. The condensing rod 65 cools the collected water.When the rotating disk 46 drives the second connecting rod 45 downward, the second connecting rod 45 drives the first connecting rod 44 downward. At the same time, the elastic restoring force of the spring 58 drives the actuating plate 56 to slide and return to its original position on the guide rod 57. The actuating plate 56 also pulls the connecting rope 59 to slide on the protective frame 52 and the welding frame 2. Due to the lever principle, the other end of the second connecting rod 45 drives the third connecting rod 49 upward. The third connecting rod 49 drives the protrusion 412 upward within the groove 411. The protrusion 412 then drives the sliding rod 414 upward through the connecting plate 413. The slide bar 414 drives the extrusion plate 415 to pull the water bag 420 upward, and the suction force of the water bag 420 draws the cooled water in the collection tank 61 into the water bag 420 through the one-way water inlet pipe 422; the other output end of the dual-axis motor 48 drives one of the pulleys 416 to rotate on the fixed block 419, and one of the pulleys 416 drives the other pulley 416 to rotate on the worktable 1 through the belt 417, and the rotating shaft of the other pulley 416 drives the fan 418 to rotate, so that the fan 418 blows air to cool the heat sink 425; When it is necessary to adjust the water output of the spray head 42 and the protrusion 412, first start the drive motor 75, so that the output end of the drive motor 75 drives the adjusting screw 72 to rotate in the adjusting groove 71, so that the adjusting screw 72 drives the moving block 73 to slide in the adjusting groove 71, so that the moving block 73 drives the limiting plate 74 to slide on the welding frame 2, so that the limiting plate 74 drives the upright plate 424 away from the rotating disk 46, so that the upright plate 424 drives the slider 77 to slide in the oblong through hole 76, so that the slider 77 drives the limiting block 78 to slide on the second connecting rod 45, so that the upright plate 424 drives the slider 77 away from the rotating disk 46, and so on. With the lever further away, the distance between the rotating disk 46 and the upright plate 424 is increased, and the distance between the upright plate 424 and the third link 49 is shortened. Therefore, the amplitude of the up-and-down movement of the third link 49 is reduced, which in turn reduces the amplitude of the up-and-down movement of the slide rod 414 driven by the third link 49 through the protrusion 412 and the connecting plate 413. This reduces the degree to which the slide rod 414 drives the squeezing plate 415 to squeeze the water bag 420, and reduces the amount of water pumped by the water bag 420 to the spray head 42 and the spray plate 421 through the one-way water outlet pipe 423. When the adjusting screw 72 drives the moving block 73 to move to the appropriate position, the drive motor 75 is then turned off.

Claims

1. A laser welding apparatus for processing automotive air filter housings, comprising a worktable (1), characterized in that: A welding frame (2) is fixedly installed on the top of the workbench (1). A retractable laser welding head (3) is fixedly installed on the side of the welding frame (2) near the workbench (1). An installation groove (8) is opened in the workbench (1). A filter assembly (6) is provided in the workbench (1). The filter assembly (6) includes a collection groove (61) opened in the bottom wall of the installation groove (8). A cooling assembly (4) is provided on the welding frame (2). The cooling assembly (4) includes a vertical plate (424) mounted on top of the welding frame (2), a second connecting rod (45) rotatably connected to the vertical plate (424), a third connecting rod (49) rotatably mounted at one end of the second connecting rod (45) away from the laser welding head (3), and a protrusion (412) with a connecting plate (413) rotatably mounted at the other end of the third connecting rod (49). An extension plate with a groove (411) is fixedly mounted on the side of the welding frame (2) away from the laser welding head (3) and close to the worktable (1). 410), the two ends of the connecting plate (413) are fixedly installed with sliding rods (414), the end of the sliding rod (414) away from the connecting plate (413) slides through the mounting groove (8) and is fixedly installed with a pressing plate (415), a water bag (420) with a one-way water outlet pipe (423) is fixedly installed in the mounting groove (8), a spray head (42) is provided on the side of the workbench (1) near the welding frame (2), and a retractable spray plate (421) is fixedly installed on the side of the welding frame (2) near the spray head (42).

2. The laser welding apparatus for processing automotive air filter housings according to claim 1, characterized in that: The two one-way water outlet pipes (423) are respectively connected to the spray plate (421) and the spray head (42) at one end away from the water bag (420). The one-way water inlet pipe (422) is connected to the side of the water bag (420) away from the laser welding head (3). The other end of the one-way water inlet pipe (422) is connected to the collection tank (61). The extrusion plate (415) is fixedly installed on the top of the water bag (420).

3. The laser welding apparatus for processing automotive air filter housings according to claim 1, characterized in that: The welding frame (2) has a rectangular through hole (41) near the laser welding head (3). A rotating disk (46) is rotatably installed in the rectangular through hole (41). A first connecting rod (44) is rotatably installed at one end of the second connecting rod (45) near the rotating disk (46). A fixing plate (43) is rotatably installed at the other end of the first connecting rod (44). A sliding column (47) is fixedly installed on one side of the second connecting rod (45) near the rotating disk (46). A dual-axis motor (48) is fixedly installed at the top of the welding frame (2) near the rotating disk (46). One of the output ends of the dual-axis motor (48) is fixedly installed at a position away from the center of the rotating disk (46).

4. The laser welding apparatus for processing automotive air filter housings according to claim 3, characterized in that: The rotating disk (46) has an annular groove, the sliding column (47) is slidably installed in the annular groove, the second connecting rod (45) is installed between the first connecting rod (44) and the rotating disk (46), the fixing plate (43) is fixedly installed on the top of the welding frame (2), the protrusion (412) is slidably installed in the groove (411), the connecting plate (413) is fixedly installed on the side of the protrusion (412) away from the groove (411), and the groove (411) is opened on the side of the extension plate (410) away from the laser welding head (3).

5. The laser welding apparatus for processing automotive air filter housings according to claim 3, characterized in that: A fixing block (419) is fixedly installed at one end of the welding frame (2). Pulleys (416) are rotatably installed on both the fixing block (419) and one side of the workbench (1). A belt (417) is sleeved between the two pulleys (416). The other output end of the dual-axis motor (48) away from the rotating disk (46) rotates through the fixing block (419) and is fixedly installed on one of the pulleys (416). A fan (418) is rotatably installed on the inner wall of the mounting groove (8) near the pulley (416). The rotating shaft of the other pulley (416) rotates through the mounting groove (8) and is fixedly installed on the fan (418). Multiple heat dissipation aluminum fins (425) are fixedly installed on the inner top wall of the mounting groove (8).

6. The laser welding apparatus for processing automotive air filter housings according to claim 1, characterized in that: The filter assembly (6) includes a guide channel (62) opened on the side of the welding frame (2) near the spray head (42), a sliding roller (63) is rotatably installed between the inner walls of the guide channel (62), a plurality of filter holes (64) are opened on the side of the guide channel (62) near the heat dissipation aluminum fin (425), a filter plate (68) is slidably installed in the collection tank (61), a condenser rod (65) is fixedly installed in the collection tank (61), and a temperature controller (66) is fixedly installed on the side of the workbench (1) near the filter plate (68).

7. The laser welding apparatus for processing automotive air filter housings according to claim 6, characterized in that: The collection tank (61) has a sliding groove (69) inside, and the filter plate (68) is slidably installed in the sliding groove (69). The workbench (1) has a rotating plate (67) rotatably installed on the side near the temperature controller (66). The temperature controller (66) and the condenser rod (65) are electrically connected. The condenser rod (65) is installed below the filter plate (68). The spray head (42) is fixedly installed on the inner bottom wall of the guide channel (62).

8. The laser welding apparatus for processing automotive air filter housings according to claim 1, characterized in that: The laser welding head (3) is provided with a clamping assembly (5). The clamping assembly (5) includes a mounting plate (51) fixedly installed on the telescopic end of the laser welding head (3). A protective frame (52) is fixedly installed on the side of the mounting plate (51) near the worktable (1). A squeezing roller (53) is rotatably installed on the end of the protective frame (52) away from the laser welding head (3). A scraper (55) is fixedly installed on the side of the protective frame (52) away from the mounting plate (51). A storage groove (511) is opened on the side of the scraper (55) near the worktable (1). A retractable oiling brush (512) is fixedly installed in the storage groove (511).

9. The laser welding apparatus for processing automotive air filter housings according to claim 8, characterized in that: The scraper blade (55) is fixedly installed between the laser welding head (3) and the extrusion roller (53). A guide rod (57) is fixedly installed on the inner wall of the protective frame (52). A toggle plate (56) is slidably installed on the guide rod (57). A spring (58) and a connecting rope (59) are fixedly installed on the side of the toggle plate (56) away from the belt (417). A dust guide hopper (54) is rotatably connected to both sides of the protective frame (52). A collection box (510) is slidably installed in the mounting groove (8).

10. A laser welding apparatus for processing automotive air filter housings according to claim 9, characterized in that: The end of the ash guide hopper (54) away from the protective frame (52) is inserted into the collection box (510). The end of the spring (58) away from the actuating plate (56) is fixedly installed on the inner wall of the protective frame (52). The spring (58) is nested on the outer surface of the guide rod (57). The end of the connecting rope (59) away from the actuating plate (56) slides through the protective frame (52) and the welding frame (2) and is fixedly installed on the end of the first connecting rod (44) away from the fixed plate (43).

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