Laser welding device for processing assembly type decorative plates

Abstract

The invention relates to the technical field of laser welding, and discloses a laser welding device for processing assembly type decorative plates, which comprises a portal frame, the portal frame is used for clamping an aluminum alloy plate, walking equipment is slidably arranged on one side of a cross beam of the portal frame, and a laser welding head is fixedly arranged at the bottom of the walking equipment; the auxiliary mechanism is arranged at the bottom of the walking equipment. According to the aluminum alloy plate polishing device, the polishing piece and the elastic shifting piece are arranged, polishing abrasive paper on the side face is used for polishing the splicing position of an aluminum alloy plate, an oxide layer on the surface of the splicing position is polished away, the elastic shifting piece has elasticity, and after the elastic shifting piece makes contact with the aluminum alloy plate and is bent, the elasticity of the polishing abrasive paper is larger, and therefore the polishing strength of the aluminum alloy plate is increased; and the gear I and the gear II are small gears driven by a large gear, and the gear II can rotate for more distances when the gear I rotates, so that the grinding efficiency is improved, and the grinding quality is improved.

Description

Technical Field

[0001] This invention relates to the field of laser welding technology, and in particular to a laser welding device for processing prefabricated decorative panels. Background Technology

[0002] Decorative panels are commonly used materials in home decoration, mainly including plywood, metal panels, etc. Among them, aluminum alloy has become the main metal decorative panel due to its high plasticity and good environmental adaptability. In the installation of decorative panels on some large walls, due to the large size of the panels required, decoration companies usually choose to transport several panels to the site for welding before installing them on the wall. For thin materials like aluminum alloy, laser welding is generally the preferred welding method. Its welding speed is fast and the weld seam is neat, which is very suitable for the application requirements of on-site welding of prefabricated decorative panels.

[0003] However, during actual welding, the oxide film on the surface of aluminum alloy has a melting point as high as 2050℃, which is much higher than the melting point of the aluminum alloy substrate. During welding, it will hinder the formation of the molten pool, resulting in defects such as incomplete penetration, slag inclusions, and porosity. Therefore, the oxide film must be completely removed by mechanical grinding before welding. However, during welding, due to the slow movement speed of the welding head and the large area and long length of the decorative aluminum alloy sheet, the unwelded part will oxidize again before it is welded, ultimately affecting the welding effect. Summary of the Invention

[0004] Given the problems of existing technology, such as the slow movement speed of the welding head and the large area and long length of decorative aluminum alloy plates, the unwelded parts are oxidized again before being welded, which ultimately affects the welding effect, a laser welding device for prefabricated decorative panel processing is proposed.

[0005] The purpose is to simultaneously grind the unwelded parts during laser welding, thereby reducing the time difference between welding and grinding, and ensuring that the unwelded parts are welded in a timely manner.

[0006] The technical solution of the present invention is a laser welding device for processing prefabricated decorative panels, including a gantry frame for clamping aluminum alloy panels, a traveling device slidably arranged on one side of the crossbeam of the gantry frame, a laser welding head fixedly arranged at the bottom of the traveling device, and an auxiliary mechanism arranged at the bottom of the traveling device.

[0007] The auxiliary mechanism includes a first sleeve fixedly mounted at the bottom of the walking device, a second sleeve slidably mounted on the inner wall of the first sleeve, a sliding column fixedly mounted on the side of the second sleeve via an ear plate, an air-absorbing component mounted on the inner wall of the second sleeve for absorbing harmful gases inside the second sleeve, a grinding component mounted on the inner wall of the second sleeve for grinding unwelded parts of the aluminum alloy, and a cleaning component mounted on the inner wall of the second sleeve for cleaning the surface of the aluminum alloy sheet. A pair of sliding columns are symmetrically arranged on both sides of the second sleeve. Each sleeve is slidably mounted on the side of the first sleeve via an ear plate. The top of each sliding column is fixedly connected to the side of the first sleeve via a spring. A cylindrical tube penetrating vertically is fixedly mounted at the center of the inner top wall of the second sleeve, and the second sleeve is slidably mounted on the side of the laser welding head via the cylindrical tube.

[0008] Furthermore, the suction component includes a squeezing plate slidably disposed on the inner wall of the second sleeve, a transmission frame fixedly disposed on the bottom of the squeezing plate, a traveling wheel rotatably disposed on the side of the inner wall of the second sleeve, a fixing rod fixedly disposed on the side of the traveling wheel, a one-way valve one disposed on the bottom of the squeezing plate, an air outlet pipe disposed on the top of the second sleeve, a one-way valve two fixedly disposed on the inner wall of the air outlet pipe, and a return spring fixedly disposed on the top of the squeezing plate.

[0009] Furthermore, the inner wall of the extrusion plate is sleeved and slidably disposed on the circumference of the cylindrical tube of the second sleeve. A pair of transmission frames and traveling wheels are provided and symmetrically disposed on both sides of the center of the second sleeve. The side of the fixing rod is slidably disposed on the bottom top wall of the transmission frame. The end of the return spring away from the extrusion plate is fixedly disposed on the inner top wall of the second sleeve.

[0010] Furthermore, the one-way valve allows airflow from the bottom to the top of the extrusion plate, and the one-way valve allows airflow from the inside to the outside of the sleeve. The side of the sleeve is provided with a sliding hole, and the end of the air outlet pipe away from the sleeve passes through the sliding hole and is provided with a filter device.

[0011] Furthermore, the grinding component includes teeth fixedly disposed on one side of each transmission frame, gear one and gear two rotatably disposed on the inner wall of sleeve two, a rotating cylinder fixedly disposed on the side of the rotating shaft of gear two, a spring pawl fixedly disposed on the side of the rotating cylinder, and sandpaper fixedly disposed on the side of the spring pawl.

[0012] Furthermore, the first gear meshes with the teeth, the first gear meshes with the second gear and their transmission ratio is greater than one, multiple spring paddles are arranged in a circular array on the side of the rotating cylinder, and several sandpapers are arranged symmetrically in pairs on both sides of each spring paddle. When the spring paddles come into contact with the aluminum alloy plate through the sandpapers, the spring paddles will bend elastically.

[0013] Furthermore, the cleaning component includes a fixed frame fixedly installed on the inner wall of the second sleeve away from the rotating cylinder, the fixed frame being located on the side with the weld seam, a rotating plate rotatably installed at the bottom of the fixed frame, a reset lever fixedly installed at the top of the rotating plate, an extension rod rotatably installed at the bottom of the rotating plate, and a plastic scraper fixedly installed at the bottom of the rotating plate. The reset lever and the extension rod are each provided in pairs and symmetrically arranged on both sides of the rotating plate, with the side of the reset lever away from the rotating plate abutting against the bottom of the fixed frame.

[0014] Furthermore, the cleaning component also includes a sponge tube rotatably mounted on both sides of the sleeve via a bracket, a ratchet sleeved and fixedly mounted on the side of the sponge tube's rotating shaft, a fixed ratchet fixedly mounted on the side of each extension rod, a rotating ratchet rotatably mounted on the side of the sponge tube bracket, and a baffle rotatably mounted on the opposite side of the two extension rods.

[0015] Furthermore, the fixed ratchet is provided in multiple parts and meshes with the ratchet, the baffle is located between the sponge cylinder and the rotating cylinder, and the bottom of the baffle abuts against the surface of the aluminum alloy plate.

[0016] Furthermore, the rotating ratchet is connected to the side of the sponge tube support via a torsion spring and abuts against the inside of the ratchet teeth. The bottom of the rotating ratchet is divided into two parts: an arc surface and a flat surface. The flat surface of the bottom of the rotating ratchet abuts against a stop plate fixedly installed on the side of the sponge tube support. The top of the stop plate is tangent to the arc surface of the bottom of the rotating ratchet.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By incorporating an air suction device, harmful gases generated during laser welding are absorbed to the top of sleeve two and then purified through a pipeline before being discharged. The small distance between the bottom of sleeve two and the surface of the aluminum alloy sheet prevents gas escape, allowing the air suction device to absorb and purify most of the harmful gases. This not only protects the health of workers on site but also prevents a reduction in air quality at the processing area. Furthermore, the negative pressure environment created by the air suction device guides the protective gas during laser welding upwards, reducing the amount of protective gas entering the molten pool and accelerating the rise of bubbles in the molten pool. This prevents the formation of porosity at the weld joint, thereby improving welding quality.

[0019] 2. By setting up a grinding component, the elastic paddle uses the side-mounted sandpaper to grind the joints of the aluminum alloy sheet, thereby removing the oxide layer on its surface. The elastic paddle is also elastic, and after contacting the aluminum alloy sheet and bending, its elasticity against the sandpaper is even greater, thus increasing the grinding force of the aluminum alloy sheet. Furthermore, gear one and gear two are driven by a large gear driving a small gear. Gear two can rotate a greater distance when gear one rotates, thereby increasing grinding efficiency and improving grinding quality.

[0020] 3. By incorporating cleaning components, the sponge cylinder can remove metal powder generated from the grinding process and impurities present on the surface of the aluminum alloy sheet, preventing any impact on subsequent laser welding. During the cleaning process, the rotating plate can oscillate using the interaction between the plastic paddle and the weld seam, which in turn drives the sponge cylinder to rotate via the extension rod, enhancing its cleaning effect. Simultaneously, the baffle, under the oscillation action of the extension rod, taps the aluminum alloy sheet, reducing the adhesion of powder and impurities to the aluminum alloy surface, thereby improving the cleaning efficiency of the sponge cylinder. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the walking device of the present invention;

[0023] Figure 3 This is a half-sectional schematic diagram of sleeve one and sleeve two of the present invention;

[0024] Figure 4 This is a schematic diagram of the internal structure of sleeve one and sleeve two of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure at the bottom of the extrusion plate of the present invention;

[0026] Figure 6 This is a schematic diagram of the structure of the suction component of the present invention;

[0027] Figure 7 This is a schematic diagram of the rotating cylinder of the present invention;

[0028] Figure 8 This is a schematic diagram of the cleaning component of the present invention;

[0029] Figure 9 For the present invention Figure 8 A magnified structural diagram of A in the middle;

[0030] Figure 10 This is a schematic diagram of the structure of the fixing frame of the present invention.

[0031] In the diagram: 1. Gantry frame; 2. Traveling equipment; 3. Laser welding head; 4. Auxiliary mechanism; 41. Sleeve 1; 42. Sleeve 2; 43. Sliding column; 44. Suction component; 441. Extrusion plate; 442. Transmission frame; 443. Traveling wheel; 444. One-way valve 1; 445. Exhaust pipe; 446. One-way valve 2; 447. Return spring; 45. Grinding component; 451. Gear 1; 452. Gear 2; 453. Rotating cylinder; 454. Spring lever; 455. Sandpaper; 46. Cleaning component; 461. Fixing frame; 462. Rotating plate; 463. Return lever; 464. Extension rod; 465. Plastic scraper; 466. Sponge tube; 467. Fixed ratchet; 468. Rotating ratchet; 469. Baffle. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Example 1, referring to Figures 1-3 The first embodiment of the present invention provides a laser welding device for processing prefabricated decorative panels, including a gantry frame 1 for clamping aluminum alloy plates. A traveling device 2 is slidably arranged on one side of the crossbeam of the gantry frame 1. A laser welding head 3 is fixedly arranged at the bottom of the traveling device 2. An auxiliary mechanism 4 is also provided at the bottom of the traveling device 2. The traveling device 2 is started by a motor, thereby driving the laser welding head 3 to slide back and forth on the top of the gantry frame 1.

[0034] Specifically, during welding, two aluminum alloy plates are pre-installed on both sides of the gantry frame 1, and the splicing is placed at the center of the gantry frame 1. Then, the traveling device 2 drives the laser welding head 3 to slide on the top of the gantry frame 1, and the laser welding head 3 welds the splicing of the two aluminum alloy plates. The auxiliary mechanism 4 plays an auxiliary role in the laser welding head 3, mainly including the absorption of harmful gases, grinding and cleaning of the surface of the aluminum alloy plates.

[0035] Reference Figures 2-3The auxiliary mechanism 4 includes a first sleeve 41 fixedly installed at the bottom of the walking device 2, a second sleeve 42 slidably installed on the inner wall of the first sleeve 41, a sliding column 43 fixedly installed on the side of the second sleeve 42 via an ear plate, an air-absorbing component 44 installed on the inner wall of the second sleeve 42 for absorbing harmful gases inside the second sleeve 42, a grinding component 45 installed on the inner wall of the second sleeve 42 for grinding the unwelded parts of the aluminum alloy, and a cleaning component 46 installed on the inner wall of the second sleeve 42 for cleaning the surface of the aluminum alloy sheet. A pair of sliding columns 43 are provided and symmetrically arranged on both sides of the second sleeve 42. Each sleeve is slidably installed on the side of the first sleeve 41 via an ear plate. The top of each sliding column 43 is fixedly connected to the side of the first sleeve 41 via a spring. A cylindrical tube penetrating vertically is fixedly installed at the center of the inner top wall of the second sleeve 42. The second sleeve 42 is slidably installed on the side of the laser welding head 3 via the cylindrical tube.

[0036] Specifically, a spring generates a compressive force between sleeve 1 41 and sleeve 2 42. During the sliding process of the traveling device 2, sleeve 2 42 exerts a downward pressure on the aluminum alloy plate under the action of the spring, providing sufficient friction for the rotation of the subsequent traveling wheel 443. During the sliding process of the traveling device 2, the suction component 44 is used to absorb the harmful gases generated inside the sleeve 2 42 due to welding, the grinding component 45 grinds the oxide layer on the surface of the aluminum alloy plate, and the cleaning component 46 is used to clean the dust and impurities on the surface of the aluminum alloy plate, ultimately improving the actual welding effect.

[0037] Example 2, refer to Figures 4-6 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the suction component 44 includes a squeezing plate 441 slidably disposed on the inner wall of the sleeve 42, a transmission frame 442 fixedly disposed on the bottom of the squeezing plate 441, a traveling wheel 443 rotatably disposed on the side of the inner wall of the sleeve 42, a fixing rod fixedly disposed on the side of the traveling wheel 443, a one-way valve 444 connected to the bottom of the squeezing plate 441, an air outlet pipe 445 connected to the top of the sleeve 42, a one-way valve 446 fixedly disposed on the inner wall of the air outlet pipe 445, and a return spring 447 fixedly disposed on the top of the squeezing plate 441.

[0038] The inner wall of the extrusion plate 441 is fitted and slidably disposed around the cylindrical side of the sleeve 42. A pair of transmission frames 442 and traveling wheels 443 are symmetrically arranged on both sides of the center of the sleeve 42. The side of the fixing rod is slidably disposed on the bottom top wall of the transmission frame 442. The end of the return spring 447 away from the extrusion plate 441 is fixedly disposed on the inner top wall of the sleeve 42. The one-way valve 444 allows airflow from the bottom to the top of the extrusion plate 441, and the one-way valve 446 allows airflow from the inside to the outside of the sleeve 42. A sliding hole is provided on the side of the sleeve 41. The end of the air outlet pipe 445 away from the sleeve 42 passes through the sliding hole and is equipped with a filter.

[0039] Specifically, during the sliding process of the walking device 2, the walking wheel 443 rolls under the action of friction between it and the aluminum alloy plate, and the fixed rod rotates accordingly. The extrusion plate 441 is usually at a higher position of the sleeve 2 42 under the action of the return spring 447. However, after the fixed rod rotates, it extrudes the transmission frame 442, and the transmission frame 442 drives the extrusion plate 441 to slide downward. After the walking wheel 443 rotates half a revolution, the fixed rod lifts the extrusion plate 441 upward again. Within one revolution of the walking wheel 443, the extrusion plate 441 completes a full round trip, and the air in the cavity between its top and the sleeve 2 42 also flows. Under the action of the one-way valve 1 444 and the one-way valve 2 446, the harmful gas generated by welding flows from the one-way valve 1 444 to the top of the sleeve 2 42, and then flows through the one-way valve 2 446 to the exhaust pipe 445. After being filtered by the exhaust pipe 445, it is discharged.

[0040] By incorporating the suction component 44, harmful gases generated during laser welding are absorbed to the top of the sleeve 42 and then purified before being discharged through a pipeline. Since the bottom of the sleeve 42 is close to the surface of the aluminum alloy sheet, the gases are less likely to escape. The suction component 44 thus absorbs and purifies most of the harmful gases, protecting the health of workers on site and preventing a reduction in air quality. Furthermore, the negative pressure environment created by the suction component 44 guides the protective gas to flow upwards, reducing the amount of protective gas entering the molten pool and accelerating the rise of bubbles in the molten pool, thereby preventing porosity at the weld and improving welding quality.

[0041] Reference Figures 4-7 The grinding component 45 includes teeth fixedly disposed on one side of each transmission frame 442, gear 1 451 and gear 2 452 rotatably disposed on the inner wall of sleeve 2 42, rotating cylinder 453 fixedly disposed on the side of the rotating shaft of gear 2 452, spring paddle 454 fixedly disposed on the side of rotating cylinder 453, and sandpaper 455 fixedly disposed on the side of spring paddle 454. Gear 1 451 meshes with the teeth, gear 1 451 meshes with gear 2 452 and the transmission ratio between the two is greater than one. Multiple spring paddles 454 are provided and arranged in a circular array on the side of rotating cylinder 453. Several sandpapers 455 are provided and arranged symmetrically on both sides of each spring paddle 454 in pairs. When the spring paddle 454 comes into contact with the aluminum alloy plate through the sandpaper 455, the spring paddle 454 will bend elastically.

[0042] Specifically, during the process of the transmission frame 442 driving the extrusion plate 441 to slide up and down, the teeth on the side wall of the transmission frame 442 drive the gear 1 451 to roll alternately in both directions. The gear 1 451 then drives the gear 2 452 to rotate alternately. When the gear 2 452 rotates, the rotating cylinder 453 is driven to rotate synchronously, which in turn drives the elastic lever to rotate. During the rotation, the elastic lever abuts against the splice of the aluminum alloy plate and uses the sandpaper 455 on the side to polish the splice of the aluminum alloy plate to remove the oxide layer on its surface, so as to facilitate subsequent welding.

[0043] By setting the grinding component 45, the elastic paddle uses the side-mounted sandpaper 455 to grind the joint of the aluminum alloy sheet, thereby removing the oxide layer on its surface. The elastic paddle is elastic, and after contacting the aluminum alloy sheet and bending, its elasticity against the sandpaper 455 is greater, thus increasing the grinding force of the aluminum alloy sheet. Furthermore, gear one 451 and gear two 452 are driven by a large gear and a small gear. Gear two 452 can rotate a greater distance when gear one 451 rotates, thereby increasing grinding efficiency and improving grinding quality.

[0044] Reference Figures 5-10 The cleaning component 46 includes a fixed frame 461 fixedly installed on the inner wall of the sleeve 42 away from the rotating cylinder 453. The fixed frame 461 is located on the side with the weld. A rotating plate 462 is rotatably installed at the bottom of the fixed frame 461. A reset lever 463 is fixedly installed at the top of the rotating plate 462. An extension rod 464 is rotatably installed at the bottom of the rotating plate 462. A plastic scraper 465 is fixedly installed at the bottom of the rotating plate 462. The reset lever 463 and the extension rod 464 are each provided in pairs and symmetrically arranged on both sides of the rotating plate 462. The side of the reset lever 463 away from the rotating plate 462 abuts against the bottom of the fixed frame 461.

[0045] The cleaning component 46 also includes a sponge tube 466 rotatably mounted on the side of the sleeve 42 via a bracket, a ratchet fitted and fixedly mounted on the side of the rotating shaft of the sponge tube 466, a fixed ratchet 467 fixedly mounted on the side of each extension rod 464, a rotating ratchet 468 rotatably mounted on the side of the sponge tube 466 bracket, and a baffle 469 rotatably mounted on opposite sides of the two extension rods 464. Multiple fixed ratchet 467s are provided and mesh with the ratchet. The baffle 469 is located between the sponge tube 466 and the rotating tube 453, with its bottom abutting against the surface of the aluminum alloy plate. The rotating ratchet 468 is connected to the side of the sponge tube 466 bracket via a torsion spring and abuts against the inside of the ratchet teeth. The bottom of the rotating ratchet 468 is divided into an arc surface and a flat surface. The flat surface of the bottom of the rotating ratchet 468 abuts against a baffle fixedly mounted on the side of the sponge tube 466 bracket, and the top of the baffle is tangent to the arc surface of the bottom of the rotating ratchet 468.

[0046] Specifically, the sliding of the walking device 2 drives the movement of the fixed frame 461, which in turn drives the rotating plate 462 to move. During the movement, the plastic scraper at the bottom of the rotating plate 462 continuously collides with the tiny folds in the weld, which causes the rotating plate 462 to swing. The reset lever 463 is an elastic metal sheet that helps the rotating plate 462 to reset, allowing the rotating plate 462 to swing left and right continuously. When the rotating plate 462 swings, the extension rod 464 begins to move back and forth in a planar motion and can hook the ratchet to rotate through the fixed ratchet 467, thereby driving the sponge cylinder 466 to rotate. The direction of rotation is to push the metal powder away from the laser welding head 3, thereby increasing the cleaning effect of the sponge cylinder 466. Furthermore, during the swing of the extension rod 464, the baffle 469 continuously jumps, blocking the powder bounced by the spring lever 454 while its bottom continuously taps the aluminum alloy surface, thereby reducing the adhesion of impurities to the aluminum alloy surface and improving the cleaning effect of the sponge cylinder 466.

[0047] Furthermore, during the brief period when the fixed ratchet 467 is separated from the ratchet, the sponge tube 466 loses its binding force and rotates, causing the ratchet to reverse. The rotating ratchet 468 is subjected to force and rotates, but it is blocked by the abutment and cannot rotate, thus preventing the ratchet and sponge tube 466 from reversing. When the fixed ratchet 467 drives the ratchet to rotate, the ratchet also applies torque to the rotating ratchet 468. However, since the bottom arc-shaped part of the rotating ratchet 468 is tangent to the abutment in the direction of rotation, it can rotate normally, thereby enabling the ratchet to rotate normally.

[0048] By incorporating the cleaning component 46, the sponge cylinder 466 can clean the metal powder generated by the grinding component 45 and some impurities present on the surface of the aluminum alloy sheet, avoiding any impact on subsequent laser welding. During the cleaning process, the rotating plate 462 can oscillate using the interaction between the plastic paddle and the weld seam, thereby using the extension rod 464 to drive the sponge cylinder 466 to rotate, enhancing its cleaning effect. Simultaneously, the baffle 469, under the oscillation action of the extension rod 464, strikes the aluminum alloy sheet, reducing the adhesion of powder and impurities to the aluminum alloy surface, thus improving the cleaning efficiency of the sponge cylinder 466. The remaining structure is the same as in Embodiment 1.

[0049] Based on embodiments 1-2, the working principle of this invention is as follows: The laser welding device uses a gantry frame 1 to clamp aluminum alloy plates. The traveling device 2 drives the laser welding head 3 and auxiliary mechanism 4 to move along the joint to achieve welding. The auxiliary mechanism 4 is tightly fitted to the plate by the spring pressure of sleeve 1 41 and sleeve 2 42. During operation, the traveling wheel 443 rubs against the plate, causing the fixed rod to press against the transmission frame 442, making the pressing plate 441 reciprocate. This, combined with the one-way valve, creates negative pressure, efficiently absorbing harmful welding gases and guiding the flow of protective gas, reducing porosity. Simultaneously, the transmission frame 442 drives gears 451 and 452 to rotate, which in turn drives the elastic paddle and sandpaper to polish the surface of the aluminum alloy sheet. The elastic pressure of the elastic paddle can enhance the polishing force, thereby thoroughly removing the oxide film. In addition, the fixed frame 461 moves with the movement, and the plastic scraper 465 collides with the weld seam, causing the rotating plate 462 to swing. The extension rod 464 and ratchet drive the sponge cylinder 466 to rotate in one direction to clean the powder. The baffle 469 simultaneously taps the sheet to reduce the adhesion of impurities, thereby improving the cleaning effect of the sponge cylinder 466.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A laser welding device for processing prefabricated decorative panels, comprising a gantry frame (1) for clamping aluminum alloy panels, a traveling device (2) slidably disposed on one side of the crossbeam of the gantry frame (1), and a laser welding head (3) fixedly disposed at the bottom of the traveling device (2), characterized in that, It also includes an auxiliary mechanism (4) located at the bottom of the walking device (2); The auxiliary mechanism (4) includes a first sleeve (41) fixedly installed at the bottom of the walking device (2), a second sleeve (42) slidably installed on the inner wall of the first sleeve (41), a sliding column (43) fixedly installed on the side of the second sleeve (42) by an ear plate, an air intake component (44) installed on the inner wall of the second sleeve (42) and used to absorb harmful gases inside the second sleeve (42), a grinding component (45) installed on the inner wall of the second sleeve (42) and used to grind the unwelded parts of the aluminum alloy, and a grinding component (45) installed on the inner wall of the second sleeve (42) and used for grinding. For cleaning components (46) used to clean the surface of aluminum alloy plates, a pair of sliding columns (43) are provided and symmetrically arranged on both sides of sleeve two (42). Each sleeve is slidably arranged on the side of sleeve one (41) through an ear plate. The top of each sliding column (43) is fixedly connected to the side of sleeve one (41) by a spring. A cylindrical tube that runs vertically through the center of the inner top wall of sleeve two (42) is fixedly arranged. Sleeve two (42) is slidably arranged on the side of laser welding head (3) through the cylindrical tube.

2. The laser welding device for processing prefabricated decorative panels according to claim 1, characterized in that: The suction component (44) includes a squeezing plate (441) slidably disposed on the inner wall of the sleeve two (42), a transmission frame (442) fixedly disposed on the bottom of the squeezing plate (441), a traveling wheel (443) rotatably disposed on the side of the inner wall of the sleeve two (42), a fixing rod fixedly disposed on the side of the traveling wheel (443), a one-way valve one (444) connected to the bottom of the squeezing plate (441), an air outlet pipe (445) connected to the top of the sleeve two (42), a one-way valve two (446) fixedly disposed on the inner wall of the air outlet pipe (445), and a return spring (447) fixedly disposed on the top of the squeezing plate (441).

3. The laser welding device for processing prefabricated decorative panels according to claim 2, characterized in that: The inner wall of the extrusion plate (441) is fitted and slidably disposed on the circumference of the cylindrical tube of the sleeve two (42). The transmission frame (442) and the traveling wheel (443) are each provided in a pair and symmetrically disposed on both sides of the center of the sleeve two (42). The side of the fixing rod is slidably disposed on the bottom top wall of the transmission frame (442). The end of the reset spring (447) away from the extrusion plate (441) is fixedly disposed on the inner top wall of the sleeve two (42).

4. The laser welding device for processing prefabricated decorative panels according to claim 2, characterized in that: The one-way valve (444) allows airflow from the bottom to the top of the extrusion plate (441), and the one-way valve (446) allows airflow from the inside to the outside of the sleeve (42). The sleeve (41) has a sliding hole on its side, and the end of the air outlet pipe (445) away from the sleeve (42) passes through the sliding hole and is equipped with a filter device.

5. The laser welding device for processing prefabricated decorative panels according to claim 1, characterized in that: The grinding component (45) includes teeth fixedly disposed on one side of each transmission frame (442), gear one (451) and gear two (452) rotatably disposed on the inner wall of sleeve two (42), a rotating cylinder (453) fixedly disposed on the side of the rotating shaft of gear two (452), a spring paddle (454) fixedly disposed on the side of the rotating cylinder (453), and a sandpaper (455) fixedly disposed on the side of the spring paddle (454).

6. The laser welding device for processing prefabricated decorative panels according to claim 5, characterized in that: The first gear (451) meshes with teeth, and the first gear (451) meshes with the second gear (452) with a transmission ratio greater than one. Multiple spring paddles (454) are arranged in a circular array on the side of the rotating cylinder (453). Several sandpapers (455) are arranged symmetrically in pairs on both sides of each spring paddle (454). When the spring paddle (454) comes into contact with the aluminum alloy plate through the sandpaper (455), the spring paddle (454) will bend elastically.

7. The laser welding device for processing prefabricated decorative panels according to claim 1, characterized in that: The cleaning component (46) includes a fixed frame (461) fixedly installed on the inner wall of the sleeve (42) away from the rotating cylinder (453). The fixed frame (461) is located on the side with the weld. A rotating plate (462) is rotatably installed at the bottom of the fixed frame (461). A reset lever (463) is fixedly installed at the top of the rotating plate (462). An extension rod (464) is rotatably installed at the bottom of the rotating plate (462). A plastic scraper (465) is fixedly installed at the bottom of the rotating plate (462). The reset lever (463) and the extension rod (464) are each provided in pairs and symmetrically arranged on both sides of the rotating plate (462). The side of the reset lever (463) away from the rotating plate (462) abuts against the bottom of the fixed frame (461).

8. The laser welding device for processing prefabricated decorative panels according to claim 7, characterized in that: The cleaning component (46) also includes a sponge tube (466) rotatably mounted on the side of the sleeve two (42) via a bracket, a ratchet sleeved and fixedly mounted on the side of the rotating shaft of the sponge tube (466), a fixed ratchet (467) fixedly mounted on the side of each extension rod (464), a rotating ratchet (468) rotatably mounted on the side of the sponge tube (466) bracket, and a baffle (469) rotatably mounted on the opposite side of the two extension rods (464).

9. The laser welding device for processing prefabricated decorative panels according to claim 8, characterized in that: The fixed ratchet (467) is provided in multiple parts and meshes with the ratchet. The baffle (469) is located between the sponge tube (466) and the rotating tube (453). The bottom of the baffle (469) abuts against the surface of the aluminum alloy plate.

10. A laser welding device for processing prefabricated decorative panels according to claim 8, characterized in that: The rotating ratchet (468) is connected to the side of the sponge tube (466) bracket by a torsion spring and abuts against the inside of the ratchet teeth. The bottom of the rotating ratchet (468) is divided into two parts: an arc surface and a flat surface. The flat surface part of the bottom of the rotating ratchet (468) abuts against a stop plate fixedly set on the side of the sponge tube (466) bracket. The top of the stop plate is tangent to the arc surface part of the bottom of the rotating ratchet (468).

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