A precision laser welding device for small parts

Abstract

The present application relates to the technical field of laser welding, and particularly relates to a precise component laser welding device, which comprises a processing box, a coaming and a laser welding gun are arranged on the top of the processing box, the laser welding gun is arranged in the coaming, a screening box and a dust suction pump are arranged in the processing box, a dust suction pipe is communicated with the input end of the dust suction pump, the strong magnetic adsorption column and the weak magnetic adsorption column are driven to rotate through the second transmission member, when the strong magnetic adsorption column rotates, the metal dust and the iron filings dust in the dust can be adsorbed, so that the metal dust and the iron filings dust adhere to the outside of the strong magnetic adsorption column, then the metal dust and the iron filings dust adhering to the surface of the strong magnetic adsorption column can be scraped off by the first scraper, and fall downward under the action of gravity, but the iron filings dust is adsorbed by the weak magnetic adsorption column while falling, and the metal dust directly falls into the metal dust collecting frame due to insufficient magnetic force.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and more specifically to a laser welding device for precision parts. Background Technology

[0002] Laser welding is a welding method that uses a focused laser beam to bombard the workpiece, generating heat to weld components. Due to the optical properties of lasers, such as refraction and focusing, laser welding is ideal for welding miniature parts and areas with poor accessibility. Laser welding also features low heat input, minimal weld deformation, and is unaffected by electromagnetic fields. However, laser welding machines generate a large amount of dust during operation, which requires dust control.

[0003] Publication document CN210731354U discloses a laser welding machine for precision parts production, including a mounting base, a connecting device, a welding head, and an exhaust device. The connecting device is located on one side of the mounting base. A drive device is installed inside the mounting base. An air pump is installed inside the mounting base, and an air duct passes through the connecting device and extends downwards out of the welding head. A laser generator is installed inside the welding head. A welding head is installed at the bottom of the welding head, and a laser galvanometer is installed inside the welding head. An optical fiber is installed between the laser generator, the laser galvanometer, and the welding head. The exhaust device is located on one side of the welding head, and a first fan is installed at the top of the exhaust device. An exhaust pipe is installed inside the exhaust device. A filter device is installed inside the exhaust device. This invention can absorb the fumes generated during operation and discharge them in compliance with standards through the filter device. It also cools the laser generator while absorbing the fumes, making it more convenient to use.

[0004] While the aforementioned device can collect and process the dust generated during welding, this dust includes ash, ferromagnetic dust, and metallic dust, and the ferromagnetic and metallic dust are recyclable. Directly processing this dust with the device not only wastes resources but also increases production costs. Summary of the Invention

[0005] To address the aforementioned problems, a precision component laser welding device is provided. A second transmission component drives a strong magnetic adsorption column and a weak magnetic adsorption column to rotate. When the strong magnetic adsorption column rotates, it adsorbs metal dust and iron filings from the dust, causing them to adhere to the outside of the column. A first scraper then removes the adsorbed metal dust and iron filings, which fall downwards under gravity. Simultaneously, the iron filings are attracted by the weak magnetic adsorption column, while the metal dust, due to insufficient magnetic force, falls directly into the metal dust collection frame. A second scraper then removes the iron filings adsorbed on the weak magnetic adsorption column, causing them to fall into the iron filings collection frame. The metal dust collection frame and iron filings collection frame allow for the collection and utilization of the screened metal dust and iron filings, saving resources.

[0006] To address the problems of existing technologies, this invention provides a precision component laser welding device, comprising a processing box. A surrounding plate and a laser welding gun are mounted on the top of the processing box. The laser welding gun is disposed inside the surrounding plate. A screening box and a dust pump are disposed inside the processing box. The input end of the dust pump is connected to a dust suction pipe, one end of which extends into the interior of the surrounding plate and is connected to a dust suction hood for adsorbing dust. A crushing frame for crushing dust particles is disposed inside the screening box. The output end of the dust pump is connected to the interior of the crushing frame via a pipe. A screening component for screening metal dust and iron filings is also disposed inside the screening box.

[0007] Preferably, the screening assembly includes a first partition and a second partition disposed inside the screening box. The first partition is rotatably equipped with a strong magnetic adsorption column for adsorbing metal dust and iron filings. The side wall of the first partition is equipped with a first scraper for scraping off metal dust and iron filings. The second partition is rotatably equipped with a weak magnetic adsorption column for adsorbing metal dust. The side wall of the second partition is equipped with a second scraper for scraping off metal dust.

[0008] Preferably, the screening box is equipped with a metal dust collection frame for collecting metal dust and an iron filings dust collection frame for collecting iron filings dust.

[0009] Preferably, the crushing frame is provided with symmetrical crushing rollers that rotate inside. One end of each of the two crushing rollers extends to the outside of the crushing frame and is provided with a gear. The two gears mesh with each other, and a drive rod is provided on the outer wall of one of the gears.

[0010] Preferably, the inner walls on both sides of the pulverizing frame are provided with inclined plates for guiding the movement of dust.

[0011] Preferably, the side wall of the first partition and the inner wall of the screening box are provided with mounting blocks. The top of the mounting block is provided with symmetrical spring telescopic rods. The telescopic end of the spring telescopic rod is provided with a connecting block. The side wall of the connecting block is provided with a flow guide frame. The flow guide frame is located directly below the crushing frame. The side wall of the flow guide frame is also provided with an abutment block.

[0012] Preferably, the side wall of the first partition is rotatably provided with a rotating rod, and the outside of the rotating rod is provided with a plurality of protrusions for pressing the abutment block.

[0013] Preferably, the screening box is further equipped with an electrostatic separator for screening non-magnetic metal dust and ash.

[0014] Preferably, a second transmission component is provided between the strong magnetic adsorption column and the weak magnetic adsorption column, and a first transmission component is provided between the drive rod and the rotating rod.

[0015] Preferably, the screening box is further provided with an activated carbon adsorption plate for purifying the gas.

[0016] The advantages of this invention compared to the prior art are: The second transmission component drives the strong magnetic adsorption column and the weak magnetic adsorption column to rotate. When the strong magnetic adsorption column rotates, it can adsorb metal dust and iron filings in the dust, causing them to adhere to the outside of the strong magnetic adsorption column. Then, the first scraper can scrape off the metal dust and iron filings adhering to the surface of the strong magnetic adsorption column, causing them to fall downwards under the action of gravity. However, as they fall, the iron filings will be adsorbed by the weak magnetic adsorption column, while the metal dust, due to insufficient magnetic force, will fall directly into the metal dust collection frame. Then, the second scraper can scrape off the iron filings adsorbed on the surface of the weak magnetic adsorption column, causing them to fall into the iron filings collection frame. The metal dust collection frame and the iron filings collection frame can collect and utilize the screened metal dust and iron filings, saving resources.

[0017] Activating the first transmission component drives the drive rod and rotating rod to rotate. When the drive rod rotates, it drives two gears to mesh, which in turn drives two crushing rollers to work, thereby crushing the dust particles entering the crushing frame. By crushing the dust into fine particles, it is easier to screen later. At the same time, the inclined plate inside the crushing frame can guide the crushed dust into the interior of the guide frame. While the rotating rod rotates, it also drives multiple protrusions on its exterior to rotate. The protrusions squeeze the contact block, causing the guide frame to vibrate back and forth under the action of the spring telescopic rod, allowing the dust inside the guide frame to flow out quickly.

[0018] Activated carbon adsorption plates can deeply purify the gas after screening, effectively preventing various harmful gases generated during welding from polluting the environment. This not only helps protect the environment but also ensures air quality in the workplace, providing workers with a healthy and safe working environment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a laser welding device for precision parts.

[0020] Figure 2 This is a schematic diagram of the structure of some components in a precision parts laser welding device.

[0021] Figure 3 This is a schematic diagram of the dust collection hood in a precision component laser welding device.

[0022] Figure 4 This is a schematic diagram of the internal structure of the processing box in a laser welding device for precision parts.

[0023] Figure 5 This is a schematic diagram of the internal structure of a screening box in a laser welding device for precision parts.

[0024] Figure 6 This is a schematic diagram of the first and second transmission components in a laser welding device for precision parts.

[0025] Figure 7 A schematic diagram of the dust frame and flow guide frame in a precision component laser welding device. Figure 8 This is a schematic diagram of the internal structure of the crushing frame in a laser welding device for precision parts.

[0026] Figure 9 This is a schematic diagram of the structure of a protrusion in a laser welding device for precision parts.

[0027] Figure 10 This is a structural schematic diagram of a screening component in a laser welding device for precision parts.

[0028] The following are the labels in the diagram: 1. Processing box; 2. Enclosure; 3. Laser welding gun; 4. Dust hood; 5. Dust suction pipe; 6. Dust pump; 7. Screening box; 8. Crushing frame; 9. Guide frame; 10. Electrostatic separator; 11. First partition; 12. Second partition; 13. First transmission component; 14. Second transmission component; 15. Activated carbon adsorption plate; 16. Drive rod; 17. Inclined plate; 18. Crushing roller; 19. Gear; 20. Connecting block; 21. Spring telescopic rod; 22. Mounting block; 23. Abutment block; 24. Rotating rod; 25. Protrusion; 26. Strong magnetic adsorption column; 27. First scraper; 28. Metal dust collection frame; 29. ​​Weak magnetic adsorption column; 30. Second scraper; 31. Iron filings dust collection frame. Detailed Implementation

[0029] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 10 As shown, the present invention provides: A precision component laser welding device includes a processing box 1, a top enclosure 2 and a laser welding gun 3, the laser welding gun 3 being disposed inside the enclosure 2, a screening box 7 and a dust pump 6 being disposed inside the processing box 1, the input end of the dust pump 6 being connected to a dust suction pipe 5, one end of the dust suction pipe 5 extending into the interior of the enclosure 2 and connected to a dust suction hood 4 for adsorbing dust, the screening box 7 being disposed inside a crushing frame 8 for crushing dust particles, the output end of the dust pump 6 being connected to the interior of the crushing frame 8 via a pipe, and the screening box 7 also being disposed inside a screening component for screening metal dust and iron filings dust.

[0031] When welding precision parts is required, the parts to be welded must first be placed inside the enclosure 2, ensuring their stable position and compliance with welding requirements. Next, the operator must precisely control the laser welding gun 3, aiming it at the designated area of ​​the precision parts for meticulous welding. Simultaneously, to ensure a clean working environment and the health of the operators, the dust pump 6 must be activated, and through the coordinated action of the suction pipe 5 and the dust hood 4, the dust generated during the welding process is effectively absorbed and guided to the inside of the pulverizing frame 8 for centralized treatment.

[0032] After the dust is adsorbed into the crushing frame 8, it can be further processed and recycled using the screening components in the screening box 7 to perform fine screening. This step effectively separates metal dust and iron filings from the dust, facilitating subsequent classification, processing, and recycling, thereby maximizing resource utilization and protecting the environment.

[0033] like Figure 10 As shown, the screening assembly includes a first partition 11 and a second partition 12 disposed inside the screening box 7. The first partition 11 has a strong magnetic adsorption column 26 rotatably disposed inside for adsorbing metal dust and iron filings. The side wall of the first partition 11 is provided with a first scraper 27 for scraping off metal dust and iron filings. The second partition 12 has a weak magnetic adsorption column 29 rotatably disposed inside for adsorbing metal dust. The side wall of the second partition 12 is provided with a second scraper 30 for scraping off metal dust.

[0034] The strong magnetic adsorption column 26 and the weak magnetic adsorption column 29 rotate. When the strong magnetic adsorption column 26 rotates, it can adsorb metal dust and iron filings in the dust, causing the metal dust and iron filings to adhere to the outside of the strong magnetic adsorption column 26. Then, the first scraper 27 can scrape off the metal dust and iron filings adhering to the surface of the strong magnetic adsorption column 26, and they fall downwards under the action of gravity. However, as they fall, the iron filings will be adsorbed by the weak magnetic adsorption column 29, while the metal dust, due to insufficient magnetic force, will fall directly into the inside of the metal dust collection frame 28. Then, the second scraper 30 can scrape off the iron filings adsorbed on the surface of the weak magnetic adsorption column 29, causing the iron filings to fall into the inside of the iron filings collection frame 31.

[0035] like Figure 10 As shown, the screening box 7 is equipped with a metal dust collection frame 28 for collecting metal dust and an iron filings dust collection frame 31 for collecting iron filings dust.

[0036] The metal dust collection frame 28 and the iron filings dust collection frame 31 effectively and comprehensively collect the metal dust and iron filings after screening. This not only improves the resource reuse rate but also effectively reduces waste generation, thus achieving resource conservation and environmental protection at the source.

[0037] like Figure 5 As shown, the crushing frame 8 is equipped with symmetrical crushing rollers 18 that rotate inside. One end of each crushing roller 18 extends to the outside of the crushing frame 8 and is equipped with a gear 19. The two gears 19 mesh with each other, and a drive rod 16 is provided on the outer wall of one of the gears 19.

[0038] When the drive rod 16 starts to rotate, it drives the two gears 19 to mesh with each other. This meshing not only ensures the stability of power transmission but also further promotes the synchronous operation of the two crushing rollers 18, initiating their crushing work. As the crushing rollers 18 rotate, the dust particles that have entered the crushing frame 8 are gradually introduced into the crushing area. Here, the dust particles are subjected to strong crushing and shearing by the crushing rollers 18, effectively crushing them into finer granular materials. Through this fine crushing process, the size of the dust particles is significantly reduced, which not only improves crushing efficiency but also facilitates subsequent screening.

[0039] like Figure 8 As shown, inclined plates 17 for guiding the movement of dust are provided on both inner walls of the shredding frame 8.

[0040] Meanwhile, the inclined plate 17 inside the crushing frame 8 effectively guides the dust generated during the crushing process, allowing it to smoothly enter the internal space of the guide frame 9. This not only ensures the orderly flow of dust but also greatly improves the efficiency and effectiveness of dust collection, preventing dust from flying everywhere.

[0041] like Figure 5 and Figure 7 As shown, the side wall of the first partition 11 and the inner wall of the screening box 7 are both provided with mounting blocks 22. The top of the mounting block 22 is provided with symmetrical spring telescopic rods 21. The telescopic end of the spring telescopic rod 21 is provided with a connecting block 20. The side wall of the connecting block 20 is provided with a guide frame 9. The guide frame 9 is located directly below the crushing frame 8. The side wall of the guide frame 9 is also provided with an abutment block 23.

[0042] The protrusion 25 effectively compresses the contact block 23, providing the necessary power and ensuring that the guide frame 9 can achieve stable and continuous reciprocating vibration under the elastic support and extension of the spring telescopic rod 21. This effectively disturbs the dust particles inside the guide frame 9, preventing them from accumulating and instead driving them away. As the vibration continues, the dust particles, under the combined action of inertia and vibration, quickly move to the bottom of the guide frame 9 and eventually flow out from the bottom opening. This not only accelerates the dust discharge but also ensures the cleanliness of the guide frame 9, preventing dust from being pushed inside.

[0043] like Figure 9 As shown, a rotating rod 24 is rotatably provided on the side wall of the first partition 11, and a plurality of protrusions 25 for pressing the contact block 23 are provided on the outside of the rotating rod 24.

[0044] The guide frame 9 can be kept in a state of vibration by driving the bump 25.

[0045] like Figure 5As shown, the screening box 7 is also equipped with an electrostatic separator 10 for screening non-magnetic metal dust and ash.

[0046] The electrostatic separator 10 can efficiently and precisely separate non-metallic dust and particulate matter mixed in the air. This technology not only effectively removes various impurities from the dust but also meticulously separates reusable resources. This significantly improves dust treatment efficiency and greatly facilitates subsequent recycling, enabling these resources to be reused more scientifically and efficiently, further promoting resource recycling and environmental protection.

[0047] like Figure 10 As shown, a second transmission component 14 is provided between the strong magnetic adsorption column 26 and the weak magnetic adsorption column 29, and a first transmission component 13 is provided between the drive rod 16 and the rotating rod 24.

[0048] Through the synergistic effect of the second transmission component 14 and the first transmission component 13, the ineffective consumption of energy can be significantly reduced, thereby improving the overall energy utilization efficiency and reducing unnecessary energy waste.

[0049] like Figure 5 As shown, the screening box 7 is also equipped with an activated carbon adsorption plate 15 for purifying the gas.

[0050] The activated carbon adsorption plate 15 can deeply purify the screened gas, effectively preventing various harmful gases generated during welding from polluting the environment. This process not only helps protect the environment but also ensures air quality in the workplace, providing workers with a healthy and safe working environment. The activated carbon adsorption plate 15, with its unique porous structure and powerful adsorption capacity, can capture and lock harmful substances in the gas, thus achieving highly efficient gas purification.

[0051] Working Principle: When welding precision parts is required, the precision parts are first placed inside the enclosure 2. Then, the laser welding gun 3 is controlled to weld the precision parts. At the same time, the dust pump 6 is started to work with the dust suction pipe 5 and the dust suction hood 4 to absorb the dust generated during welding into the crushing frame 8. Then, the first transmission component 13 is started to drive the drive rod 16 and the rotating rod 24 to rotate. When the drive rod 16 rotates, it drives the two gears 19 to mesh with each other, which in turn drives the two crushing rollers 18 to work, thereby crushing the dust particles that enter the crushing frame 8. By crushing the dust into fine particles, it is easier to screen later. At the same time, the inclined plate 17 inside the crushing frame 8 can guide the crushed dust into the guide frame 9. When the rotating rod 24 rotates, it also drives the multiple protrusions 25 on its outside to rotate. The protrusions 25 squeeze the contact block 23, so that the guide frame 9 can reciprocate under the action of the spring telescopic rod 21, so that the dust inside the guide frame 9 can flow out quickly. After the dust flows out from the bottom of the guide frame 9, the machine starts. The second transmission component 14 drives the strong magnetic adsorption column 26 and the weak magnetic adsorption column 29 to rotate. When the strong magnetic adsorption column 26 rotates, it can adsorb metal dust and iron filings in the dust, causing the metal dust and iron filings to adhere to the outside of the strong magnetic adsorption column 26. Then, the first scraper 27 can scrape off the metal dust and iron filings adhering to the surface of the strong magnetic adsorption column 26, causing them to fall downwards under the action of gravity. However, as they fall, the iron filings will be adsorbed by the weak magnetic adsorption column 29, while the metal dust will fall directly due to insufficient magnetic force. Inside the metal dust collection frame 28, the second scraper 30 can then scrape off the iron filings adsorbed on the surface of the weak magnetic adsorption column 29, causing the iron filings to fall into the iron filings collection frame 31. The metal dust collection frame 28 and the iron filings collection frame 31 can collect and utilize the screened metal dust and iron filings, saving resources. At the same time, the electrostatic separator 10 can separate non-metallic dust and ash, thereby separating the usable resources in the dust and facilitating subsequent recycling.

[0052] The above embodiments merely illustrate one or several implementations of a precision component laser welding device of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A laser welding device for precision parts, characterized in that, The equipment includes a processing box (1), with a surrounding plate (2) and a laser welding gun (3) on the top of the processing box (1). The laser welding gun (3) is located inside the surrounding plate (2). The processing box (1) is equipped with a screening box (7) and a dust pump (6). The input end of the dust pump (6) is connected to a dust suction pipe (5). One end of the dust suction pipe (5) extends into the interior of the surrounding plate (2) and is connected to a dust suction hood (4) for adsorbing dust. The screening box (7) is equipped with a crushing frame (8) for crushing dust particles. The output end of the dust pump (6) is connected to the interior of the crushing frame (8) through a pipe. The screening box (7) is also equipped with a screening component for screening metal dust and iron filings dust.

2. The precision component laser welding device according to claim 1, characterized in that, The screening assembly includes a first partition (11) and a second partition (12) disposed inside the screening box (7). The first partition (11) is rotatably equipped with a strong magnetic adsorption column (26) for adsorbing metal dust and iron filings. The side wall of the first partition (11) is equipped with a first scraper (27) for scraping off metal dust and iron filings. The second partition (12) is rotatably equipped with a weak magnetic adsorption column (29) for adsorbing metal dust. The side wall of the second partition (12) is equipped with a second scraper (30) for scraping off metal dust.

3. The precision component laser welding device according to claim 2, characterized in that, The screening box (7) is equipped with a metal dust collection frame (28) for collecting metal dust and an iron filings dust collection frame (31) for collecting iron filings dust.

4. The precision component laser welding device according to claim 1, characterized in that, The crushing frame (8) is rotatably equipped with symmetrical crushing rollers (18). One end of each of the two crushing rollers (18) extends to the outside of the crushing frame (8) and is equipped with a gear (19). The two gears (19) mesh with each other, and a drive rod (16) is provided on the outer wall of one of the gears (19).

5. The precision component laser welding apparatus according to claim 4, characterized in that, The inner walls on both sides of the pulverizing frame (8) are provided with inclined plates (17) for guiding the movement of dust.

6. The precision component laser welding apparatus according to claim 2, characterized in that, The side wall of the first partition (11) and the inner wall of the screening box (7) are provided with mounting blocks (22). The top of the mounting block (22) is provided with symmetrical spring telescopic rods (21). The telescopic end of the spring telescopic rod (21) is provided with a connecting block (20). The side wall of the connecting block (20) is provided with a guide frame (9). The guide frame (9) is located directly below the crushing frame (8). The side wall of the guide frame (9) is also provided with an abutment block (23).

7. The precision component laser welding apparatus according to claim 6, characterized in that, The side wall of the first partition (11) is rotatably provided with a rotating rod (24), and the outside of the rotating rod (24) is provided with a plurality of protrusions (25) for pressing the contact block (23).

8. The precision component laser welding apparatus according to claim 1, characterized in that, The screening box (7) is also equipped with an electrostatic separator (10) for screening non-magnetic metal dust and ash.

9. A precision component laser welding apparatus according to claim 2, characterized in that, A second transmission component (14) is provided between the strong magnetic adsorption column (26) and the weak magnetic adsorption column (29), and a first transmission component (13) is provided between the drive rod (16) and the rotating rod (24).

10. A precision component laser welding apparatus according to claim 1, characterized in that, The screening box (7) is also equipped with an activated carbon adsorption plate (15) for purifying the gas.

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