Anti-splashing laser welding machine for sheet metal production

Abstract

The invention relates to the technical field of laser welding, and discloses an anti-splashing laser welding machine for sheet metal production, which comprises a rack, a positioning plate is fixedly mounted on the side of the top of the rack, a motor is fixedly mounted on one side, far away from the positioning plate, of the rack, and a conveying plate is mounted between the opposite surfaces of the rack through motor transmission; the conveying plate is used for guiding and conveying a platinum plate after welding is completed, and a collecting tank is installed below the conveying plate. A displacement assembly is installed on the outer surface of the positioning plate in a transmission mode and erected above the conveying plate. According to the anti-splashing laser welding machine for metal plate production, the anti-splashing blocking frame integrally moves along with a welding piece and surrounds the periphery of the welding head all the time, splashing objects are blocked and collected in the whole welding displacement process, the splashing objects fall into the chip collecting groove and finally fall into the collecting groove below the rack, welding and splashing prevention are synchronously carried out, splashing is prevented from being diffused outwards, and the welding quality is improved. Operators are scalded, equipment is polluted or a metal plate is damaged.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, specifically to an anti-spatter laser welding machine for sheet metal production. Background Technology

[0002] In the modern sheet metal processing industry, laser welding has been widely used in the mass production of various metal sheet metal parts due to its advantages such as small heat-affected zone, high welding precision, and aesthetically pleasing welds. With the popularization of automated production lines, the use of continuous conveyor laser welding machines for sheet metal welding can significantly improve production efficiency and reduce labor costs, and has become the mainstream development trend in the industry. However, existing conveyor laser welding machines generate a large amount of spatter during the welding process, resulting in significant environmental pollution and safety hazards. Laser welding produces a large amount of high-temperature metal spatter and welding slag, which easily scatters everywhere. This spatter not only adheres to the sheet metal surface, affecting the appearance quality of the finished product, but also contaminates the internal structure of the equipment, increasing the difficulty of subsequent cleaning. At the same time, the high-temperature spatter poses a risk of burns to operators, resulting in poor safety protection.

[0003] Chinese Patent Publication No. CN114799511A discloses a laser welding device for anti-splash aluminum alloy expansion joint covers. This device uses a two-stage, half-side laser welding method to simultaneously and stably fix two sliding blocks with shafts onto the aluminum alloy cover, effectively preventing spatter from falling onto the cover during laser welding. It also allows for continuous laser welding of the aluminum alloy cover, significantly improving work efficiency. However, the welding head and anti-splash structure are often separate components, failing to provide dynamic protection and offering limited anti-splash effectiveness, thus failing to meet the demands of high-precision sheet metal welding. Furthermore, the limiting mechanism is prone to damaging the workpiece surface during welding, exhibiting poor versatility. Existing clamping structures often employ rigid blocks or fixed edges, which can easily cause scratches and indentations on the sheet metal surface during the limiting process, affecting the product's appearance. Summary of the Invention

[0004] The purpose of this invention is to provide an anti-spatter laser welding machine for sheet metal production, in order to solve the problems mentioned in the background art, such as the limiting mechanism easily damaging the workpiece surface during welding, poor versatility, and the existing clamping structure mostly adopting rigid pressure blocks or fixed baffles, which easily cause scratches and indentations on the sheet metal surface during the limiting process, affecting the product appearance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an anti-spatter laser welding machine for sheet metal production, comprising: a frame, a positioning plate fixedly installed on the side of the top of the frame, a motor fixedly installed on the side of the frame away from the positioning plate, a conveying plate installed between opposite surfaces of the frame via motor drive, the conveying plate being used to guide the platinum plate after welding, and a collection trough installed below the conveying plate; A displacement assembly is mounted on the outer surface of the positioning plate, and the displacement assembly is mounted above the conveyor plate. A limit assembly is slidably mounted on the top of the positioning plate. Two sets of limit assemblies are provided, one on each side of the displacement assembly. The worker places the two platinum plates to be welded above the conveyor plate. The displacement component includes a slide rail, with symmetrically mounted brackets on both sides of its outer surface. A carriage is fixedly mounted on the outer surface of each bracket. A movable seat is driven onto the surface of the slide rail, and a synchronous belt is installed inside the movable seat. The movable seat is slidably mounted on the surface of the slide rail via the synchronous belt. Welded components are fixedly mounted on the outer surface of the movable seat. The movable seat is driven onto the surface of the slide rail, and its internal synchronous belt operates in a closed loop under the drive of an external drive mechanism. This drives the movable seat to perform stable, high-precision linear reciprocating motion along the slide rail. The slide rail provides linear guidance for the movable seat, limiting its lateral offset and sway, ensuring a straight and precise movement trajectory, and maintaining a high degree of overlap between the welding path and the sheet metal weld.

[0006] Furthermore, the slide is slidably mounted on the surface of the positioning plate, and the welded component is supported above the conveyor plate via the slide. The welded component is fixedly mounted on the outer surface of the movable seat and moves synchronously along the slide rail with the movable seat. The laser emitter and the welding head achieve continuous and uniform welding feed under the drive of the synchronous belt, and continuously laser weld the sheet metal parts on the conveyor plate below during the movement.

[0007] Furthermore, the welded component includes a laser emitter, a welding head is fixedly mounted on the bottom of the laser emitter, a connecting plate is fixedly mounted on the outer surface of the laser emitter, a splash guard is fixedly mounted on the bottom of the connecting plate, a chip collection groove is provided on the inner side of the splash guard, and a protective pad is fixedly mounted on the bottom of the chip collection groove. The splash guard moves with the welded component as a whole, always surrounding the welding head, blocking and collecting spatter throughout the welding displacement. The spatter falls into the chip collection groove and eventually drops into the collection trough under the frame, achieving simultaneous welding and splash prevention, avoiding the outward spread of spatter, preventing burns to operators, contamination of equipment, or damage to sheet metal. Furthermore, the laser emitter is fixedly mounted on the outer surface of the movable base, and the laser emitter and the welding head are mounted on the surface of the slide rail via a synchronous belt drive. The splash guard is arranged around the welding head.

[0008] Furthermore, the splash guard is made of a high-temperature resistant material, and the protective pad is made of a flexible material. The protective pad is positioned between the chip collection groove and the platinum plate. The protective pad at the bottom of the chip collection groove is placed between the chip collection groove and the sheet metal plate to prevent the splash guard from making hard contact with the sheet metal plate, thus preventing scratches on the sheet metal plate. At the same time, it buffers welding vibrations and improves welding stability.

[0009] Furthermore, the limiting component includes a mounting plate, with a rotating rod rotatably mounted inside the mounting plate, adjusting rods movably mounted at both ends of the mounting plate, and rollers rotatably mounted at the bottom of the adjusting rods. A fitting component is fixedly mounted on the outer surface of the mounting plate. The operator adjusts the distance between the two sets of limiting components on the positioning plate according to the width of the sheet metal to be welded, so that the two sets of mounting plates respectively fit the two side edges of the sheet metal, completing the width adjustment to accommodate sheet metal of different specifications. Then, the height of the mounting plate is finely adjusted using the adjusting rods, ensuring that the rotating rod inside the mounting plate and the fitting component on the surface precisely fit the upper surface of the sheet metal, avoiding limiting failure or sheet metal jamming due to height deviation. The rollers are rotatably mounted at the bottom of the adjusting rods and roll along the surface of the positioning plate, significantly reducing sliding resistance when adjusting the position of the limiting components. Simultaneously, they maintain the stability of the mounting plate position during welding operations, preventing displacement of the limiting components due to conveying vibrations and ensuring the continuity of limiting accuracy.

[0010] Furthermore, the mounting plate is slidably mounted on top of the positioning plate via rollers, and the rotating rod is slidably mounted on the surface of the platinum plate. The rotating rod is used for auxiliary conveying of the platinum plate before welding. When the motor drives the conveyor plate to move the sheet metal plate towards the welding station, the rotating rod inside the mounting plate rotates synchronously with the conveying of the sheet metal plate. During the forward conveying of the sheet metal plate, multiple sets of evenly arranged bonding parts sequentially perform segmented flexible pressing on the sheet metal plate, which plays an auxiliary feeding role, reduces the frictional resistance between the sheet metal plate and the mounting plate, ensures smooth conveying, and guides and limits the two sides of the sheet metal plate to prevent lateral deviation or deviation during conveying, ensuring that the sheet metal plate accurately enters the welding station along the preset trajectory.

[0011] Furthermore, the bonding component includes a mounting frame, inside which a clamping plate is fixedly mounted. An inclined plate is fixedly mounted at the bottom of the clamping plate, and friction teeth are provided on the surface of the inclined plate. A sliding shell is rotatably mounted at the bottom of the inclined plate. Multiple sets of mounting frames are evenly arranged along the length of the mounting plate and erected above the sheet metal. The clamping plate inside the mounting frame fixes the inclined plate at a preset tilt angle, causing the bottom of the inclined plate to be elastically pressed against the upper surface of the sheet metal, forming a longitudinal pressing and limiting effect on the sheet metal. This fundamentally prevents problems such as warping, bulging, and vertical movement of the sheet metal during transportation and welding.

[0012] Furthermore, the mounting bracket is provided in several groups, which are evenly arranged on the surface of the mounting plate and mounted above the platinum plate. Friction teeth are integrally formed on the surface of the inclined plate, directly contacting the upper surface of the sheet metal plate. By increasing the contact friction, the longitudinal and lateral sliding of the sheet metal plate is further restricted. Even under conditions of high-speed conveying or vibration generated during welding, the position of the sheet metal plate can be kept stable, eliminating the risk of welding position deviation.

[0013] Furthermore, the inclined plate and friction teeth are made of flexible material, and the sliding shell is rotatably mounted on the end of the inclined plate, and the sliding shell is slidably adapted to the platinum plate. The sliding shell is rotatably mounted on the bottom end of the inclined plate, forming a sliding fit with the upper surface of the sheet metal plate. When the conveyor plate drives the sheet metal plate forward, the sliding shell adaptively rotates or slides with the movement of the sheet metal plate, transforming the sliding friction between the inclined plate and the sheet metal plate into a low-resistance sliding contact, which maintains the pressing and limiting effect, and avoids the inclined plate or friction teeth directly scratching or abrading the sheet metal surface.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: (i) The anti-spatter laser welding machine for sheet metal production has a moving seat transmission assembly mounted on the slide rail surface. It is equipped with a synchronous belt inside. Under the drive of the external drive mechanism, the synchronous belt operates in a closed loop, thereby driving the moving seat to make a stable and high-precision linear reciprocating motion along the slide rail. The slide rail provides linear guidance for the moving seat, restricts its lateral offset and sway, and ensures that the moving trajectory is straight and accurate, so that the welding path and the sheet metal weld are highly coincident.

[0015] (ii) The anti-spatter laser welding machine for sheet metal production has an anti-spatter baffle that moves with the welded parts as a whole and always surrounds the welding head. It blocks and collects the spatter throughout the welding displacement. The spatter falls into the chip collection trough and eventually falls into the collection trough under the machine frame, so that welding and anti-spatter are carried out simultaneously, avoiding the spatter from spreading outward, burning operators, contaminating equipment, or damaging the sheet metal.

[0016] (iii) The anti-spatter laser welding machine for sheet metal production has a protective pad at the bottom of the chip collection groove between the chip collection groove and the sheet metal plate to prevent the anti-spatter baffle from making hard contact with the sheet metal plate, prevent scratching the sheet metal plate, and at the same time buffer welding vibration and improve welding stability.

[0017] (iv) In the anti-spatter laser welding machine for sheet metal production, the rotating rod inside the mounting plate rotates synchronously with the conveying of the sheet metal plate. During the conveying process of the sheet metal plate, multiple sets of evenly arranged bonding parts sequentially perform segmented flexible pressing on the sheet metal plate, which plays an auxiliary feeding role, reduces the frictional resistance between the sheet metal plate and the mounting plate, ensures smooth conveying, and guides and limits the two sides of the sheet metal plate to prevent the sheet metal plate from shifting laterally or running off course during the conveying process, ensuring that the sheet metal plate accurately enters the welding station along the preset trajectory.

[0018] (v) The anti-spatter laser welding machine for sheet metal production has multiple sets of mounting frames evenly arranged along the length of the mounting plate and mounted on top of the sheet metal plate. The clamping plate inside the mounting frame fixes the tilting piece at a preset tilt angle, so that the bottom of the tilting piece is elastically pressed against the upper surface of the sheet metal plate, forming a longitudinal pressing limit on the sheet metal plate, thus avoiding problems such as warping, bulging, and vertical jumping of the sheet metal plate during transportation and welding. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is another schematic diagram of the overall structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the frame structure of the present invention; Figure 4 This is a schematic diagram of the limiting component structure of the present invention; Figure 5 This is an enlarged schematic diagram of the limiting component structure of the present invention; Figure 6 This is a schematic diagram of the bonding component structure of the present invention; Figure 7 This is a schematic diagram of the displacement component structure of the present invention; Figure 8 This is a schematic diagram of the welded component structure of the present invention; Figure 9 This is a disassembly diagram of the welded component structure of the present invention.

[0020] In the diagram: 1. Frame; 2. Motor; 3. Conveyor plate; 4. Limiting assembly; 41. Adjusting rod; 42. Rotating rod; 43. Roller; 44. Fitting component; 441. Mounting bracket; 442. Inclined plate; 443. Friction tooth; 444. Sliding housing; 445. Clamping plate; 45. Mounting plate; 5. Displacement assembly; 51. Synchronous belt; 52. Moving seat; 53. Slide carriage; 54. Frame plate; 55. Slide rail; 56. Welded component; 561. Laser emitter; 562. Splash guard; 563. Welding head; 564. Connecting plate; 565. Chip collection trough; 566. Protective pad; 6. Collection trough; 7. Positioning plate. Detailed Implementation

[0021] Example 1, as Figures 1 to 9 As shown, the present invention provides a technical solution: an anti-spatter laser welding machine for sheet metal production, comprising: a frame 1, a positioning plate 7 fixedly installed on the top side of the frame 1, a motor 2 fixedly installed on the side of the frame 1 away from the positioning plate 7, a conveying plate 3 being installed between the opposite surfaces of the frame 1 via the motor 2, the conveying plate 3 being used to guide the platinum plate after welding, and a collection trough 6 being installed below the conveying plate 3; A displacement assembly 5 is mounted on the outer surface of the positioning plate 7, and the displacement assembly 5 is mounted above the conveyor plate 3. A limit assembly 4 is slidably mounted on the top of the positioning plate 7. Two sets of limit assemblies 4 are provided, and the two sets of limit assemblies 4 are respectively located on both sides of the displacement assembly 5. The operator places the two platinum plates to be welded on top of the conveyor plate 3. The displacement component 5 includes a slide rail 55. Frame plates 54 are symmetrically mounted on both sides of the outer surface of the slide rail 55. A carriage 53 is fixedly mounted on the outer surface of the frame plates 54. A movable seat 52 is driven onto the surface of the slide rail 55. A synchronous belt 51 is installed inside the movable seat 52. The movable seat 52 is slidably mounted on the surface of the slide rail 55 via the synchronous belt 51. A welded component 56 is fixedly mounted on the outer surface of the movable seat 52. The movable seat 52 is driven onto the surface of the slide rail 55, and the synchronous belt 51 is installed inside it. Under the drive of an external drive mechanism, the synchronous belt 51 operates in a closed loop, thereby driving the movable seat 52 to perform stable and high-precision linear reciprocating motion along the slide rail 55. The slide rail 55 provides linear guidance for the movable seat 52, limiting its lateral offset and sway, ensuring a straight and precise movement trajectory, and maintaining a high degree of overlap between the welding path and the sheet metal weld.

[0022] The slide 53 is slidably mounted on the surface of the positioning plate 7, and the welding component 56 is supported above the conveyor plate 3 via the slide 53. The welding component 56 is fixedly mounted on the outer surface of the movable seat 52 and moves synchronously along the slide rail 55 with the movable seat 52. The laser emitter 561 and the welding head 563 are driven by the synchronous belt 51 to achieve continuous and uniform welding feed, and continuously laser welding is performed on the sheet metal parts on the lower conveyor plate 3 during the movement.

[0023] The weldment 56 includes a laser emitter 561. A welding head 563 is fixedly mounted on the bottom of the laser emitter 561. A connecting plate 564 is fixedly mounted on the outer surface of the laser emitter 561. A splash guard 562 is fixedly mounted on the bottom of the connecting plate 564. A chip collection groove 565 is provided on the inner side of the splash guard 562. A protective pad 566 is fixedly mounted on the bottom of the chip collection groove 565. The splash guard 562 moves with the weldment as a whole, always surrounding the welding head 563. It blocks and collects the splashes throughout the welding displacement. The splashes fall into the chip collection groove 565 and eventually fall into the collection trough 6 under the frame. This achieves simultaneous welding and splash prevention, avoiding the outward spread of splashes and preventing burns to operators, equipment contamination, or damage to sheet metal. The laser emitter 561 is fixedly mounted on the outer surface of the movable base 52. The laser emitter 561 and the welding head 563 are driven by the synchronous belt 51 and mounted on the surface of the slide rail 55. The splash guard 562 is arranged around the welding head 563.

[0024] The splash guard 562 is made of high-temperature resistant material, and the protective pad 566 is made of flexible material. The protective pad 566 is disposed between the chip collection groove 565 and the platinum plate. The protective pad 566 at the bottom of the chip collection groove 565 is placed between the chip collection groove 565 and the sheet metal plate to prevent the splash guard 562 from making hard contact with the sheet metal plate, thus preventing scratches on the sheet metal plate. At the same time, it buffers welding vibration and improves welding stability.

[0025] Example 2, based on Example 1, such as Figures 4 to 6 As shown, the limiting component 4 includes a mounting plate 45, a rotating rod 42 is rotatably mounted inside the mounting plate 45, an adjusting rod 41 is movably mounted at both ends of the mounting plate 45, a roller 43 is rotatably mounted at the bottom of the adjusting rod 41, and a fitting piece 44 is fixedly mounted on the outer surface of the mounting plate 45. According to the width of the sheet metal to be welded, the staff adjusts the distance between the two sets of limiting components 4 on the positioning plate 7 so that the two sets of mounting plates 45 respectively fit the two sides of the sheet metal, thus completing the width adjustment to adapt to different specifications of sheet metal. Then, the height of the mounting plate 45 is finely adjusted by adjusting rod 41 so that the rotating rod 42 inside the mounting plate 45 and the surface fitting part 44 are precisely fitted to the upper surface of the sheet metal, avoiding limit failure or sheet metal jamming due to height deviation. The roller 43 is rotated and installed at the bottom of adjusting rod 41 and rolls along the surface of positioning plate 7, greatly reducing sliding resistance when adjusting the position of the limiting components. At the same time, it keeps the position of the mounting plate 45 stable during the welding operation, avoiding displacement of the limiting components due to conveying vibration and ensuring the continuity of the limiting accuracy.

[0026] The mounting plate 45 is slidably mounted on top of the positioning plate 7 via rollers 43, and the rotating rod 42 is slidably mounted on the surface of the platinum plate. The rotating rod 42 is used for auxiliary conveying of the platinum plate before welding. When the motor 2 drives the conveying plate 3 to move the sheet metal plate towards the welding station, the rotating rod 42, which is rotatably mounted inside the mounting plate 45, rotates synchronously with the conveying of the sheet metal plate. During the forward conveying of the sheet metal plate, multiple sets of evenly arranged bonding parts 44 sequentially perform segmented flexible pressing on the sheet metal plate, which plays an auxiliary feeding role, reduces the frictional resistance between the sheet metal plate and the mounting plate 45, ensures smooth conveying, and guides and limits the two sides of the sheet metal plate to prevent lateral deviation or deviation during conveying, ensuring that the sheet metal plate accurately enters the welding station along the preset trajectory.

[0027] The bonding component 44 includes a mounting frame 441, inside which a clamping plate 445 is fixedly mounted. An inclined plate 442 is fixedly mounted on the bottom of the clamping plate 445. Friction teeth 443 are provided on the surface of the inclined plate 442, and a sliding shell 444 is rotatably mounted on the bottom of the inclined plate 442. Multiple sets of mounting frames 441 are evenly arranged along the length of the mounting plate 45, mounted above the sheet metal plate. The clamping plate 445 inside the mounting frame 441 fixes the inclined plate 442 at a preset tilt angle, causing the bottom of the inclined plate 442 to be elastically pressed against the upper surface of the sheet metal plate, forming a longitudinal pressing and limiting effect on the sheet metal plate. This fundamentally prevents problems such as warping, bulging, and vertical jumping of the sheet metal plate during transportation and welding.

[0028] The mounting bracket 441 is provided in several groups, which are evenly arranged on the surface of the mounting plate 45 and are mounted above the platinum plate. The inclined plate 442 is integrally provided with friction teeth 443 on its surface. The friction teeth 443 are in direct contact with the upper surface of the sheet metal plate. By increasing the contact friction, the longitudinal and lateral sliding of the sheet metal plate is further restricted. Even under the conditions of high-speed conveying of the conveyor plate 3 or vibration generated by welding, the position of the sheet metal plate can be kept stable, and the risk of welding position deviation can be eliminated.

[0029] The inclined plate 442 and friction teeth 443 are made of flexible material. The sliding shell 444 is rotatably mounted on the end of the inclined plate 442 and is slidably adapted to the platinum plate. The sliding shell 444 is rotatably mounted on the bottom end of the inclined plate 442 and forms a sliding fit with the upper surface of the sheet metal plate. When the conveyor plate moves the sheet metal plate forward, the sliding shell 444 adaptively rotates or slides with the movement of the sheet metal plate, transforming the sliding friction between the inclined plate and the sheet metal plate into a low-resistance sliding contact. This maintains the pressing and limiting effect while preventing the inclined plate or friction teeth from directly scratching or damaging the sheet metal surface.

[0030] During use, the staff adjusts the distance between the two sets of limiting components 4 on the positioning plate 7 according to the width of the sheet metal to be welded, so that the two sets of mounting plates 45 respectively fit the two sides of the sheet metal, thus completing the width adjustment to adapt to different specifications of sheet metal. Then, the height of the mounting plate 45 is finely adjusted by adjusting rod 41, so that the rotating rod 42 inside the mounting plate 45 and the surface fitting part 44 are precisely fitted to the upper surface of the sheet metal, avoiding limit failure or sheet metal jamming due to height deviation.

[0031] When motor 2 drives conveyor plate 3 to move sheet metal plate towards welding station, rotating rod 42 inside mounting plate 45 rotates synchronously with sheet metal plate conveying. During sheet metal plate conveying, multiple sets of evenly arranged bonding parts 44 sequentially perform segmented flexible pressing on sheet metal plate, which plays an auxiliary feeding role, reduces frictional resistance between sheet metal plate and mounting plate 45, ensures smooth conveying, and guides and limits the two sides of sheet metal plate to prevent lateral deviation or deviation during conveying, ensuring that sheet metal plate accurately enters welding station along preset trajectory.

[0032] The roller 43 is rotatably mounted on the bottom of the adjusting rod 41 and rolls along the surface of the positioning plate 7. This significantly reduces sliding resistance when adjusting the position of the limiting component 4, while keeping the position of the mounting plate 45 stable during the welding operation. This prevents the limiting component from shifting due to conveying vibration and ensures the continuity of the limiting accuracy.

[0033] Multiple mounting brackets 441 are evenly arranged along the length of the mounting plate 45 and mounted on top of the sheet metal plate. The clamping plate 445 inside the mounting bracket 441 fixes the tilting piece 442 at a preset tilt angle, so that the bottom of the tilting piece 442 is elastically pressed against the upper surface of the sheet metal plate, forming a longitudinal pressing limit on the sheet metal plate, thus avoiding problems such as warping, bulging, and vertical jumping of the sheet metal plate during transportation and welding.

[0034] The surface of the inclined plate 442 is integrally provided with friction teeth 443, which directly contact the upper surface of the sheet metal plate. By increasing the contact friction, the longitudinal and lateral sliding of the sheet metal plate is further restricted. Even under the condition of high-speed conveying of the conveyor plate 3 or vibration generated by welding, the position of the sheet metal plate can be kept stable, and the risk of welding position deviation can be eliminated.

[0035] The sliding housing 444 is rotatably installed at the bottom end of the inclined plate 442, forming a sliding fit with the upper surface of the sheet metal plate. When the conveyor plate drives the sheet metal plate to move forward, the sliding housing 444 adapts to the movement of the sheet metal plate, rotating or sliding accordingly, transforming the sliding friction between the inclined plate and the sheet metal plate into a low-resistance sliding contact, which maintains the pressing and limiting effect while preventing the inclined plate or friction teeth from directly scraping or scratching the sheet metal surface.

[0036] The movable seat 52 is mounted on the surface of the slide rail 55. A synchronous belt 51 is installed inside the movable seat 52. Under the drive of the external drive mechanism, the synchronous belt 51 operates in a closed loop, thereby driving the movable seat 52 to make a stable and high-precision linear reciprocating motion along the slide rail 55. The slide rail 55 provides linear guidance for the movable seat 52, restricts its lateral offset and sway, and ensures that the movement trajectory is straight and accurate, so that the welding path and the sheet metal weld are highly coincident.

[0037] The welding part 56 is fixedly installed on the outer surface of the movable seat 52 and moves synchronously along the slide rail 55 with the movable seat 52. The laser emitter 561 and the welding head 563 are driven by the synchronous belt 51 to achieve continuous and uniform welding feed, and perform continuous laser welding on the sheet metal parts on the lower conveyor plate 3 during the movement.

[0038] The splash guard 562 moves with the entire welded part, always surrounding the welding head 563. It blocks and collects splashes throughout the welding process, which fall into the chip collection trough 565 and eventually into the collection tank 6 below the frame. This allows welding and splash prevention to proceed simultaneously, preventing splashes from spreading outwards and burning operators, contaminating equipment, or damaging sheet metal. The protective pad 566 at the bottom of the chip collection groove 565 is placed between the chip collection groove 565 and the sheet metal plate to prevent the splash guard 562 from making hard contact with the sheet metal plate, prevent scratching the sheet metal plate, and at the same time buffer welding vibration and improve welding stability.

Claims

1. A laser welding machine for sheet metal production that prevents spattering, characterized in that, include: A frame (1) is provided with a positioning plate (7) fixedly installed on the top side of the frame (1). A motor (2) is fixedly installed on the side of the frame (1) away from the positioning plate (7). A conveying plate (3) is installed between the opposite surfaces of the frame (1) through the motor (2). The conveying plate (3) is used to guide the platinum plate after welding. A collection trough (6) is installed below the conveying plate (3). The outer surface of the positioning plate (7) is equipped with a displacement component (5), which is mounted above the conveying plate (3). A limit component (4) is slidably installed on the top of the positioning plate (7). Two sets of limit components (4) are provided, and the two sets of limit components (4) are respectively located on both sides of the displacement component (5). The displacement component (5) includes a slide rail (55), on which two sides of the outer surface of the slide rail (55) are symmetrically mounted with a frame plate (54), and a slide bracket (53) is fixedly mounted on the outer surface of the frame plate (54). A movable seat (52) is installed on the surface of the slide rail (55), and a synchronous belt (51) is provided inside the movable seat (52). The movable seat (52) is slidably mounted on the surface of the slide rail (55) through the synchronous belt (51), and a welded part (56) is fixedly mounted on the outer surface of the movable seat (52).

2. The anti-spatter laser welding machine for sheet metal production according to claim 1, characterized in that: The carriage (53) is slidably mounted on the surface of the positioning plate (7), and the welded part (56) is mounted above the conveyor plate (3) via the carriage (53).

3. The anti-spatter laser welding machine for sheet metal production according to claim 2, characterized in that: The welded component (56) includes a laser emitter (561), a welding head (563) is fixedly installed at the bottom of the laser emitter (561), a connecting plate (564) is fixedly installed on the outer surface of the laser emitter (561), a splash guard (562) is fixedly installed at the bottom of the connecting plate (564), a chip collection groove (565) is provided on the inner side of the splash guard (562), and a protective pad (566) is fixedly installed at the bottom of the chip collection groove (565).

4. The anti-spatter laser welding machine for sheet metal production according to claim 3, characterized in that: The laser emitter (561) is fixedly installed on the outer surface of the movable seat (52). The laser emitter (561) and the welding head (563) are driven by a synchronous belt (51) and installed on the surface of the slide rail (55). The splash guard (562) is set around the welding head (563).

5. The anti-spatter laser welding machine for sheet metal production according to claim 4, characterized in that: The splash guard (562) is made of high temperature resistant material, the protective pad (566) is made of flexible material, and the protective pad (566) is disposed between the chip collection groove (565) and the platinum plate.

6. The anti-spatter laser welding machine for sheet metal production according to claim 1, characterized in that: The limiting component (4) includes a mounting plate (45), a rotating rod (42) is rotatably mounted inside the mounting plate (45), an adjusting rod (41) is movably mounted at both ends of the mounting plate (45), a roller (43) is rotatably mounted at the bottom of the adjusting rod (41), and a fitting piece (44) is fixedly mounted on the outer surface of the mounting plate (45).

7. The anti-spatter laser welding machine for sheet metal production according to claim 6, characterized in that: The mounting plate (45) is slidably mounted on the top of the positioning plate (7) via rollers (43), and the rotating rod (42) is slidably mounted on the surface of the platinum plate. The rotating rod (42) is used for auxiliary conveying before platinum plate welding.

8. The anti-spatter laser welding machine for sheet metal production according to claim 7, characterized in that: The bonding component (44) includes a mounting bracket (441), a card plate (445) is fixedly installed inside the mounting bracket (441), an inclined plate (442) is fixedly installed at the bottom of the card plate (445), friction teeth (443) are provided on the surface of the inclined plate (442), and a sliding shell (444) is rotatably installed at the bottom of the inclined plate (442).

9. The anti-spatter laser welding machine for sheet metal production according to claim 8, characterized in that: The mounting bracket (441) is provided in several groups, and the several groups of mounting brackets (441) are evenly arranged on the surface of the mounting plate (45). The mounting bracket (441) is mounted above the platinum plate.

10. The anti-spatter laser welding machine for sheet metal production according to claim 9, characterized in that: The inclined plate (442) and friction teeth (443) are made of flexible material, and the sliding shell (444) is rotatably installed at the end of the inclined plate (442), and the sliding shell (444) is slidably adapted to the platinum plate.

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