Aluminum material laser welding machine

Abstract

This invention belongs to the field of welding technology, specifically an aluminum laser welding machine, including a welding box. Guide rails are symmetrically fixedly installed on both sides of the welding box. Electric sliders are slidably installed inside each of the two guide rails. A pipe-fixing box is fixedly installed on the top of each of the two electric sliders. A pipe-fixing assembly is installed inside each of the two pipe-fixing boxes to fix two aluminum pipes. When the electric sliders drive the aluminum pipes into the welding box through the pipe-fixing boxes, four grinding blocks are pushed to fit against the weld joint between the two aluminum pipes. Then, a drive motor operates, causing the aluminum pipes to rotate through a clamping shaft. The four grinding blocks then grind the weld joint between the two aluminum pipes due to their rotation, thereby removing the oxide film on the surface of the aluminum pipes, effectively removing the oxide film from the weld joint.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, specifically an aluminum laser welding machine. Background Technology

[0002] Aluminum materials refer to materials with certain shapes and properties made from aluminum as the base material, through pure aluminum processing or the addition of other metals and non-metals to form alloys, and then through processes such as casting, rolling, extrusion, and forging. It is a general term for aluminum and aluminum alloys that have been processed and can be directly applied to industrial, construction, transportation and other fields. It includes both pure aluminum products and various aluminum alloy products.

[0003] Aluminum pipes are profiles with a hollow tubular structure made from aluminum or aluminum alloy as the base raw material through processing techniques such as extrusion, rolling, welding, and perforation. They are mainly used for liquid or gas transportation, structural support, and heat dissipation.

[0004] Laser welding of aluminum is an advanced welding technology that uses a high-energy-density laser beam to join aluminum and aluminum alloys. With its advantages of fast welding speed, small heat-affected zone and high weld quality, it is widely used in aerospace, automobile manufacturing, electronics and other fields.

[0005] In existing technologies, the surface of pipes usually has a certain oxide film layer. When welding two aluminum pipes, the oxide film easily adsorbs moisture and gas in the air. These gases will be released at high temperatures. In addition, aluminum conducts heat quickly and the molten pool solidifies relatively quickly during welding. The gases adsorbed in the oxide film may not have time to escape and will be trapped in the weld, thus forming pores. This is not only detrimental to the welding operation of the pipes, but also affects the aesthetics of the weld.

[0006] Therefore, the present invention provides an aluminum laser welding machine. Summary of the Invention

[0007] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0008] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides an aluminum laser welding machine, which includes a welding box. Guide rails are symmetrically fixedly installed on both sides of the welding box. Electric sliders are slidably arranged inside the two guide rails. A pipe fixing box is fixedly installed on the top of the two electric sliders. A pipe fixing assembly is arranged inside the two pipe fixing boxes. The pipe fixing assembly is used to fix two aluminum pipes. Laser welding heads are symmetrically arranged inside the welding box. A grinding assembly is symmetrically arranged inside the welding box. The grinding assembly includes a grinding block. The grinding assembly is used to grind the welding position between the two pipes through the grinding block.

[0009] When welding two aluminum pipes, the two pipes are placed on one side of two pipe-fixing boxes, and then the pipe-fixing components inside the two boxes are driven to fix the two aluminum pipes. Once the two pipes are fixed, two electric sliders are driven to slide relative to each other within the guide rails. The two electric sliders then move the two pipes into the welding box through the two pipe-fixing boxes. When one end of the two pipes contacts each other, the electric sliders stop moving, and one end of the two pipes is aligned and connected. Then, the grinding component is driven to move the grinding block to the welding position between the two pipes. Once the grinding block is in operation, it grinds the welding position, removing the oxide film from the aluminum pipe. After the oxide film is removed, two laser welding heads are driven to perform the welding operation on the aluminum pipe, thus realizing the laser welding of the aluminum pipe. By setting up the grinding component, the oxide film on the aluminum pipe is ground and removed before welding, which can avoid the generation of pores during welding, improve welding efficiency and yield, and make it easier to weld aluminum pipes.

[0010] Preferably, the pipe fixing assembly includes a motor, which is fixedly installed inside the pipe fixing box. Multiple connecting blocks are fixedly installed at the motor's output end. Each connecting block has a clamping shaft hinged to one end. The outer walls of the clamping shafts can contact the outer wall of the aluminum pipe. When fixing the aluminum pipe, one end of the aluminum pipe is placed on one side of the pipe fixing box, and then the motor drives the connecting blocks to rotate. The connecting blocks then pull the clamping shafts to rotate, causing the clamping shafts to move towards the center of the pipe fixing box. When the outer walls of the clamping shafts contact the outer wall of the aluminum pipe, the clamping shafts clamp and fix the aluminum pipe through rotation, thus fixing the pipe. The symmetrical arrangement of the two pipe fixing boxes ensures that the center positions of the two aluminum pipes are always at the same horizontal level when fixing them, facilitating subsequent laser welding operations between them.

[0011] Preferably, the inner wall of the fixed pipe box is rotatably connected to a rotating plate. The inner wall of the rotating plate has multiple sliding grooves, and the outer walls of multiple clamping shafts are slidably connected to the inner walls of these grooves. The outer wall of the rotating plate can contact one end of the aluminum pipe. When the motor drives the clamping shafts to rotate via the connecting block, the clamping shafts will rotate and slide on the sliding grooves within the rotating plate, thus moving towards the outer wall of the aluminum pipe through the opening of the grooves, thereby clamping and holding it. When welding of the aluminum pipe is required, the laser welding head can be driven to weld the two aluminum pipe sections together. Laser welding is performed between the aluminum pipes. The operation continues by driving two motors. Since the clamping shaft and the pipe are in a clamping state, when the motor rotates, it will drive the rotating plate to rotate within the fixed pipe box through the limiting position of the clamping shaft and the aluminum pipe. The motor will then drive the aluminum pipe to rotate, so that when the laser welding head welds the aluminum pipe, the motor drives the aluminum pipe to rotate, allowing the laser welding head to perform circular welding on the aluminum pipe, which plays a role in cooperating with the laser welding head to perform circular welding on the aluminum pipe.

[0012] Preferably, the grinding assembly also includes four arc rods and four grinding blocks. The four grinding blocks are fixedly installed at one end of each of the four arc rods. The outer walls of the four grinding blocks can fit in contact with the outer wall of the pipe. The four grinding blocks are placed in pairs on one side of the two laser welding heads. When the electric slider drives the aluminum pipe into the welding box through the fixed pipe box, it pushes the four grinding blocks to fit against the weld between the two aluminum pipes. Then, the drive motor operates, and the motor drives the aluminum pipe to rotate through the clamping shaft. The four grinding blocks then grind the weld between the two aluminum pipes through the rotation of the two aluminum pipes themselves, thereby removing the oxide film on the surface of the aluminum pipe and achieving the effect of removing the oxide film at the weld of the aluminum pipe.

[0013] Preferably, the inner wall of the welding box is symmetrically fixed with limited sliding rods. The outer walls of both limited sliding rods are slidably connected to pipe-holding arc blocks. One side of each pipe-holding arc block is fixedly fitted with a retaining frame. The outer walls of the two retaining frames are respectively fixedly connected to the outer walls of the two laser welding heads. A pressure spring is provided between the outer walls of the two pipe-holding arc blocks and the inner wall of the welding box. The two pressure springs are respectively placed outside the two limited sliding rods. One end of each pipe-holding arc block is cut into an inclined surface, allowing the outer wall of the pipe to slide against the outer walls of the two pipe-holding arc blocks. One end of each of the four arc rods is placed inside the two pipe-holding arc blocks in pairs. When aligning two aluminum pipes, one of the electric sliders is driven first to move one aluminum pipe into the welding box. When one end of the aluminum pipe is against one side of multiple grinding blocks, the electric slider is stopped, providing a connection base for the two aluminum pipes. Then, the other electric slider is driven to move the other aluminum pipe into the welding box. When the aluminum pipe enters the welding box, the aluminum pipe... The outer wall of the device will push the two holding arc blocks to move. The two holding arc blocks will then press against the pressure spring on the sliding rod to move, and the two holding arc blocks will open to both sides of the welding box. The two holding arc blocks will drive the two laser welding heads and arc rods to move outward. When one end of the two aluminum pipes is in contact with each other, the two aluminum pipes will complete the welding operation. The purpose of this setting is that, due to the different sizes of the multiple aluminum pipes, on the one hand, it can ensure that the welding distance between the laser welding head and the aluminum pipe welding point remains consistent when welding aluminum pipes of different sizes, so that the laser welding head can better weld the aluminum pipes. On the other hand, it can allow the holding arc blocks to drive multiple grinding blocks to adjust to each other through the arc rod, so that multiple grinding blocks can grind the welding position of the aluminum pipes regardless of their size and geometry, increasing the flexibility and adaptability of the device during use, and playing a role in grinding aluminum pipes of different sizes.

[0014] Preferably, the welding box has symmetrically arranged ring frames inside, and each of the two ring frames has symmetrically arranged ring blocks inside. One end of each of the four ring blocks can be slidably connected to the outer wall of the four arc rods. Each of the four ring blocks has a slidably connected welding slurry block inside. The outer wall of each of the four welding slurry blocks can be in close contact with the outer wall of the weld joint of the pipe. Multiple push-position springs are arranged between the top of each of the four welding slurry blocks and the inner wall of each of the four ring blocks. When the grinding block finishes grinding the aluminum pipe, it is pushed out of the weld joint of the aluminum pipe, and simultaneously the ring frames are pushed to the weld joint position of the aluminum pipe. The welding slurry blocks inside the ring blocks are then pushed out of the weld joint. The spring's elasticity ensures the weld joint remains firmly against the outer wall of the aluminum pipe. The laser welding head then drives the aluminum pipe to weld, while a motor rotates the pipe. The welding block continuously smooths the weld joint, preventing air bubbles from forming due to incomplete oxidation during welding. It also helps control the shape of the weld mark, flattening excess molten metal or filling in depressions, resulting in a smoother weld surface. This reduces subsequent grinding work and improves the aesthetics of the weld.

[0015] Preferably, hydraulic rods are fixedly installed inside both holding arc blocks, and shift plates are fixedly installed at the output ends of both hydraulic rods. The outer walls of the two shift plates are fixedly connected to the outer walls of the four arc rods respectively. Transmission components are provided between the two shift plates and the two ring frames. When it is necessary to move the grinding block out of the aluminum pipe weld joint, the hydraulic rods are driven to move the shift plates inside the holding arc blocks. When the shift plates move, they will move the arc rods, thereby moving the grinding block out of the aluminum pipe weld joint. At the same time, through the transmission components, when the hydraulic rods move the grinding block out of the aluminum pipe weld joint, the hydraulic rods will drive the ring frames to move towards the aluminum pipe weld joint through the transmission components, thereby moving the welding block towards the aluminum pipe weld joint, thus achieving the function of synchronously adjusting the grinding block and the welding block.

[0016] Preferably, the outer walls of the two holding arc blocks are symmetrically provided with grooves, and the inner walls of the four grooves are fixedly installed with guide rods. The inner walls of the four arc rods are slidably connected to the outer walls of the four guide rods respectively. When the shift plate moves the arc rod, the arc rod will move the grinding block on the guide rod, and the arc rod will move in the groove in the holding arc block, so that the arc rod moves the grinding block out from the welding point of the aluminum pipe. The guide rod plays a guiding role, making the arc rod more stable when moving into the holding arc block.

[0017] Preferably, the transmission component includes gears, with four gears symmetrically arranged. Each of the four gears is positioned in pairs inside two holding arc blocks, and both ends of the four gears are rotatably connected to the inner walls of the two holding arc blocks. A rack is symmetrically fixedly installed on one side of each of the two shifting plates. A rack is symmetrically slidably connected to the inner walls of each of the two holding arc blocks. The teeth on the four racks and racks mesh with the teeth on the four gears. A push rod is fixedly installed at one end of each of the four racks, and one end of each push rod is fixedly connected to the outer wall of each of the four ring blocks. When the hydraulic rod drives the shifting plate to move back, the shifting plate will drive the rack to move. When the rack moves, it will push the gear to rotate, and the gear will drive the rack to move in the direction opposite to the rack through the tooth meshing. The rack will then drive the push rod to move, thereby pushing the ring frame towards the welding position of the aluminum pipe through the ring blocks, thus synchronizing the welding block and the cylinder shaft.

[0018] Preferably, push shafts are fixedly installed on the top of both ring frames, and cylindrical shafts are symmetrically slidably connected to the inner wall of the welding box. The outer walls of the two push shafts are slidably connected to the inner walls of the two cylindrical shafts, and return springs are provided between the outer walls of the two push shafts and the inner walls of the two cylindrical shafts. The outer walls of the four ring blocks are slidably connected to the inner walls of the two ring frames in pairs. When the holding arc block is pushed by the aluminum pipe, the holding arc block will drive the push rod to move. The push rod will pull the ring block outward in the ring frame, and the ring frame will be pushed by the ring block and squeeze the return springs upward in the cylindrical shaft through the push shaft. Thus, when aluminum pipes of different sizes are entered into the welding box for welding, a complete semi-ring can always be formed between the ring frame and the ring block. The smearing block in the ring block can always be attached to the outer wall of the aluminum pipe, providing a contact basis for its smearing motion during welding, and playing the role of driving the smearing block to smear aluminum pipes of different sizes during welding.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The aluminum laser welding machine of the present invention, when the electric slider drives the aluminum pipe into the welding box through the fixed pipe box, pushes four grinding blocks to fit against the welding joint between two aluminum pipes, and then drives the motor to operate. The motor drives the aluminum pipe to rotate through the clamping shaft. The four grinding blocks grind the welding joint between the two aluminum pipes by the rotation of the two aluminum pipes themselves, thereby removing the oxide film on the surface of the aluminum pipe and achieving the function of removing the oxide film at the welding joint of the aluminum pipe.

[0021] 2. The aluminum laser welding machine of the present invention pushes two holding arc blocks to move by the outer wall of the aluminum pipe. The two holding arc blocks move by squeezing the pressure spring on the limiting rod. The two holding arc blocks open to both sides of the welding box. The two holding arc blocks drive the two laser welding heads and arc rods to move outward. This ensures that when the laser welding head is welding aluminum pipes of different sizes, the welding distance between the laser welding head and the welding point of the aluminum pipe can always be kept consistent, which facilitates better welding of the aluminum pipe by the laser welding head.

[0022] 3. The aluminum laser welding machine of the present invention moves the ring frame to the welding position of the aluminum pipe. Under the elastic push of the push spring, the welding block will always adhere to the outer wall of the welding position of the aluminum pipe. Then, the laser welding head is driven to perform welding operations on the aluminum pipe. With the help of the motor to drive the aluminum pipe to rotate, the welding block can continuously perform circumferential smearing operations on the welding position of the aluminum pipe. This can limit the shape of the weld mark during welding, flatten the excess molten metal or fill the recessed area, making the weld surface smoother. This not only reduces the amount of subsequent grinding work, but also improves the aesthetics of the weld after welding.

[0023] 4. The aluminum laser welding machine of the present invention, because the clamping shaft and the tube are in a clamping state, when the motor rotates, the motor will drive the rotating plate to rotate in the fixed tube box through the limiting position of the clamping shaft and the aluminum tube. The motor will drive the aluminum tube to rotate, so that when the laser welding head welds the aluminum tube, the motor drives the aluminum tube to rotate, allowing the laser welding head to perform circular welding on the aluminum tube, thus playing the role of cooperating with the laser welding head to perform circular welding on the aluminum tube.

[0024] 5. The aluminum laser welding machine of the present invention uses a drive motor to rotate a connecting block, which in turn pulls a clamping shaft to rotate. The clamping shaft then moves towards the center of the fixing box through rotation. Multiple clamping shafts clamp and fix the aluminum pipes through rotation, thus fixing the pipes. By symmetrically arranging two fixing boxes, this method ensures that the center positions of the two aluminum pipes are always at the same horizontal level when fixing them, which facilitates the subsequent alignment and welding operation between the two by the laser welding head. Attached Figure Description

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] Figure 1 This is an overall diagram of the invention;

[0027] Figure 2 This is the front view of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure at the clamping shaft in this invention;

[0029] Figure 4 This is a schematic diagram of the structure of the sliding limit rod in this invention;

[0030] Figure 5 This is a schematic diagram of the structure at the ring frame in this invention;

[0031] Figure 6 This is a schematic diagram of the gear structure in this invention;

[0032] Figure 7 This is a schematic diagram of the structure of the guide rod in this invention;

[0033] Figure 8 This is a schematic diagram of the structure of the solder block in this invention;

[0034] Figure 9 This is a schematic diagram of the structure at the arc rod in this invention.

[0035] In the diagram: 1. Welding box; 2. Pipe holder; 201. Motor; 202. Clamping shaft; 203. Connecting block; 204. Rotating plate; 205. Slide groove; 3. Guide rail; 301. Electric slider; 4. Laser welding head; 401. Positioning frame; 5. Pipe holding arc block; 6. Limited sliding rod; 601. Pressure bearing spring; 7. Ring frame; 701. Cylindrical shaft; 702. Return spring; 703. Push shaft; 8. Arc rod; 801. Grinding block; 802. Guide rod; 9. Hydraulic rod; 901. Gear; 902. Rack; 903. Toothed rod; 904. Shifting plate; 10. Push rod; 11. Welding block; 1101. Push spring; 1102. Ring block. Detailed Implementation

[0036] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0037] like Figures 1 to 9 As shown in the embodiment of the present invention, an aluminum laser welding machine includes a welding box 1. Guide rails 3 are symmetrically fixedly installed on both sides of the welding box 1. Electric sliders 301 are slidably arranged inside the two guide rails 3. A pipe fixing box 2 is fixedly installed on the top of the two electric sliders 301. A pipe fixing assembly is arranged inside the two pipe fixing boxes 2. The pipe fixing assembly is used to fix two aluminum pipes. A laser welding head 4 is symmetrically arranged inside the welding box 1. A grinding assembly is symmetrically arranged inside the welding box 1. The grinding assembly includes a grinding block 801. The grinding assembly is used to grind the welding position between the two pipes through the grinding block 801.

[0038] Because the gas inside the oxide film will be released at high temperature, and aluminum conducts heat quickly and the molten pool solidifies relatively quickly during welding, the gas adsorbed in the oxide film may not have time to escape and will be trapped in the weld, thus forming pores. This is not only unfavorable for welding pipes, but also affects the aesthetics of the weld.

[0039] When welding two aluminum pipes is required, the two pipes are placed on one side of two pipe-fixing boxes 2 respectively. Then, the pipe-fixing components inside the two pipe-fixing boxes 2 are driven to fix the two aluminum pipes. After the two pipes are fixed, the two electric sliders 301 are driven to slide relative to each other in the guide rail 3. The two electric sliders 301 will then move the two pipes into the welding box 1 through the two pipe-fixing boxes 2. When one end of the two pipes contacts each other, the movement of the electric sliders 301 is stopped, and one end of the two pipes is aligned and connected. Then, the grinding block 801 is driven by the grinding film assembly to grind the two pipes. The work is carried out at the welding position between the channels. The grinding block 801 grinds the welding position, thereby removing the oxide film at the welding position of the aluminum pipe. When the oxide film is removed, the two laser welding heads 4 are driven to perform the welding operation on the aluminum pipe, thereby realizing the laser welding operation of the aluminum pipe. By setting the grinding film component, the oxide film on the aluminum pipe is ground and removed before welding, which can avoid the generation of pores during welding, improve the efficiency and yield of welding, and make it easier to weld aluminum pipes.

[0040] like Figures 2 to 3 As shown, the pipe assembly includes a motor 201, which is fixedly installed inside the pipe box 2. Multiple connecting blocks 203 are fixedly installed at the output end of the motor 201. One end of each of the multiple connecting blocks 203 is hinged to a clamping shaft 202, and the outer wall of each of the multiple clamping shafts 202 can fit and contact the outer wall of the aluminum pipe.

[0041] When it is necessary to fix the aluminum pipe, one end of the aluminum pipe is placed on one side of the fixing box 2, and then the drive motor 201 drives the connecting block 203 to rotate. The connecting block 203 will then pull the clamping shaft 202 to rotate. The clamping shaft 202 will then move towards the center of the fixing box 2 through rotation. When the outer walls of multiple clamping shafts 202 are in contact with the outer wall of the aluminum pipe, the multiple clamping shafts 202 will clamp and fix the aluminum pipe through rotation, thus playing the role of clamping and fixing the pipe. Through the symmetrical arrangement of the two fixing boxes 2, when fixing two aluminum pipes, it can be ensured that the center position of the two aluminum pipes is always at the same horizontal position, which makes it easier for the subsequent laser welding head 4 to perform the alignment welding operation between the two.

[0042] like Figures 2 to 3As shown, a rotating plate 204 is rotatably connected to the inner wall of the fixed pipe box 2. Multiple sliding grooves 205 are provided on the inner wall of the rotating plate 204. The outer walls of multiple clamping shafts 202 are slidably connected to the inner walls of the multiple sliding grooves 205 respectively. The outer wall of the rotating plate 204 can fit and contact one end of the aluminum pipe.

[0043] When motor 201 drives clamping shaft 202 to rotate via connecting block 203, clamping shaft 202 will rotate and slide on slide groove 205 in rotating plate 204, thereby moving towards the outer wall of aluminum pipe through the opening of slide groove 205, thus clamping it. When welding is required on the aluminum pipe, laser welding head 4 can be driven to perform laser welding between two aluminum pipes. By driving two motors 201 to continue working, since clamping shaft 202 and pipe are in a clamping state at this time, when motor 201 rotates, motor 201 will drive rotating plate 204 to rotate in fixed pipe box 2 through the limit of clamping shaft 202 and aluminum pipe. Motor 201 will drive aluminum pipe to rotate, so that when laser welding head 4 welds aluminum pipe, motor 201 drives aluminum pipe to rotate, so that laser welding head 4 can perform circular welding on aluminum pipe, playing the role of cooperating with laser welding head 4 to perform circular welding on aluminum pipe.

[0044] like Figures 5 to 9 As shown, the grinding assembly also includes an arc rod 8. The number of arc rods 8 and grinding blocks 801 is the same, and there are four of them. The four grinding blocks 801 are fixedly installed on one end of the four arc rods 8 respectively. The outer walls of the four grinding blocks 801 can fit and contact the outer wall of the pipe. The four grinding blocks 801 are placed in pairs on one side of the two laser welding heads 4.

[0045] When the electric slider 301 drives the aluminum pipe into the welding box 1 through the fixed pipe box 2, it pushes the four grinding blocks 801 to fit against the weld between the two aluminum pipes. Then, the drive motor 201 performs the operation. The motor 201 drives the aluminum pipe to rotate through the clamping shaft 202. The four grinding blocks 801 then grind the weld between the two aluminum pipes by rotating the two aluminum pipes themselves, thereby removing the oxide film on the surface of the aluminum pipe. It should be noted that when fixing the two aluminum pipes, the larger aluminum pipe should be placed on the fixed pipe box 2 opposite to the grinding block 801.

[0046] like Figures 4 to 5As shown, the inner wall of the welding box 1 is symmetrically fixedly installed with limited sliding rods 6. The outer walls of the two limited sliding rods 6 are slidably connected with pipe holding arc blocks 5. The side of the two pipe holding arc blocks 5 is fixedly installed with a retaining frame 401. The outer walls of the two retaining frames 401 are respectively fixedly connected to the outer walls of the two laser welding heads 4. The outer walls of the two pipe holding arc blocks 5 are respectively provided with pressure springs 601 between the outer walls of the two pipe holding arc blocks 5 and the inner wall of the welding box 1. The two pressure springs 601 are respectively placed outside the two limited sliding rods 6. One end of the two pipe holding arc blocks 5 is opened as a slope, and the outer wall of the pipe can be slidably connected with the outer walls of the two pipe holding arc blocks 5. One end of the four arc rods 8 is placed inside the two pipe holding arc blocks 5 in pairs.

[0047] When aligning and connecting two aluminum pipes, one of the electric sliders 301 is first driven to move one aluminum pipe into the welding box 1. When one end of the aluminum pipe is in contact with one side of the multiple grinding blocks 801, the electric slider 301 is stopped to prepare for the connection between the two aluminum pipes. Then, the other electric slider 301 is driven to move the other aluminum pipe into the welding box 1. When the aluminum pipe enters the welding box 1, the outer wall of the aluminum pipe pushes the two pipe-holding arc blocks 5 to move. The two pipe-holding arc blocks 5 then press against the pressure spring 601 on the limiting rod 6 to move, and the two pipe-holding arc blocks 5 open to both sides of the welding box 1. The two pipe-holding arc blocks 5 then drive the two laser welding heads 4 and the arc rod 8 to move outward. When one end of two aluminum pipes is brought together, the two aluminum pipes will be joined. This design is intended to address the different sizes of the aluminum pipes. On one hand, it ensures that the welding distance between the laser welding head 4 and the aluminum pipe at the welding point remains consistent when welding aluminum pipes of different sizes, allowing the laser welding head 4 to perform welding operations more effectively. On the other hand, it allows the pipe-holding arc block 5 to drive multiple grinding blocks 801 to adjust together via the arc rod 8. This ensures that multiple grinding blocks 801 can grind the welding position of the aluminum pipe regardless of its size or geometry, increasing the flexibility and adaptability of the device during use and enabling it to grind aluminum pipes of different sizes.

[0048] like Figures 5 to 8 As shown, the welding box 1 is symmetrically equipped with ring frames 7 inside, and each of the two ring frames 7 is symmetrically equipped with ring blocks 1102 inside. One end of each of the four ring blocks 1102 can be slidably connected to the outer wall of the four arc rods 8. Each of the four ring blocks 1102 is slidably connected with a welding block 11 inside. The outer wall of each of the four welding blocks 11 can be in close contact with the outer wall of the weld joint of the pipe. Multiple push springs 1101 are provided between the top of each of the four welding blocks 11 and the inner wall of each of the four ring blocks 1102.

[0049] When the grinding block 801 finishes grinding the aluminum pipe, it is pushed out of the weld joint of the aluminum pipe. At the same time, the ring frame 7 is pushed to the weld joint position of the aluminum pipe. The smearing block 11 in the ring block 1102 will always be in contact with the outer wall of the weld joint of the aluminum pipe under the elastic push of the push spring 1101. Then, the laser welding head 4 is driven to perform welding operations on the aluminum pipe. With the help of the motor 201 to drive the aluminum pipe to rotate, the smearing block 11 can continuously perform smearing operations on the weld joint of the aluminum pipe. On the one hand, it can prevent the generation of bubbles due to incomplete oxidation treatment during welding. On the other hand, it can limit the shape of the weld mark during welding, flatten the excess molten metal or fill the depression area, making the weld surface smoother. This not only reduces the amount of subsequent grinding work, but also improves the aesthetics of the weld joint after welding.

[0050] like Figures 5 to 6 As shown, hydraulic rods 9 are fixedly installed inside the two holding arc blocks 5, and displacement plates 904 are fixedly installed at the output ends of the two hydraulic rods 9. The outer walls of the two displacement plates 904 are fixedly connected to the outer walls of the four arc rods 8 respectively, and transmission components are provided between the two displacement plates 904 and the two ring frames 7.

[0051] When it is necessary to move the grinding block 801 out of the weld joint of the aluminum pipe, the hydraulic rod 9 drives the shift plate 904 to move within the pipe holding arc block 5. When the shift plate 904 moves, it will drive the arc rod 8 to move, thereby causing the arc rod 8 to move the grinding block 801 out of the weld joint of the aluminum pipe. At the same time, through the setting of the transmission component, when the hydraulic rod 9 moves the grinding block 801 out of the weld joint of the aluminum pipe, the hydraulic rod 9 will drive the ring frame 7 to move towards the weld joint of the aluminum pipe through the transmission component, thereby causing the welding block 11 to move towards the weld joint of the aluminum pipe, which plays the role of synchronously adjusting the grinding block 801 and the welding block 11.

[0052] like Figures 6 to 7 As shown, the outer walls of the two holding arc blocks 5 are symmetrically provided with grooves, and the inner walls of the four grooves are fixedly installed with guide rods 802. The inner walls of the four arc rods 8 are slidably connected to the outer walls of the four guide rods 802 respectively.

[0053] When the shifting plate 904 moves the arc rod 8, the arc rod 8 will move the grinding block 801 on the guide rod 802. The arc rod 8 will then move in the groove inside the holding arc block 5, thereby moving the arc rod 8 and the grinding block 801 out of the weld of the aluminum pipe. The guide rod 802 plays a guiding role, making the arc rod 8 more stable when moving into the holding arc block 5. It should be noted that in the initial state, the arc rod 8 should be placed outside the holding arc block 5.

[0054] like Figures 5 to 6As shown, the transmission assembly includes gears 901, and four gears 901 are symmetrically arranged. The four gears 901 are placed in pairs inside the two holding tube arc blocks 5. The two ends of the four gears 901 are rotatably connected to the inner walls of the two holding tube arc blocks 5. A rack 903 is symmetrically fixedly installed on one side of each of the two shift plates 904. A rack 902 is symmetrically slidably connected to the inner walls of the two holding tube arc blocks 5. The teeth on the racks 902 and racks 903 mesh with the teeth on the four gears 901. A push rod 10 is fixedly installed on one end of each of the four racks 902. One end of each push rod 10 is fixedly connected to the outer wall of the four ring blocks 1102.

[0055] When the hydraulic rod 9 moves the shift plate 904 back, the shift plate 904 will move the rack 903. When the rack 903 moves, it will push the gear 901 to rotate. The gear 901 will then drive the rack 902 to move in the opposite direction to the rack 903 through the tooth meshing. The rack 902 will then drive the push rod 10 to move, thereby pushing the ring frame 7 to the welding position of the aluminum pipe through the ring block 1102, so as to make the welding block 11 and the cylinder shaft 701 adjust synchronously.

[0056] like Figures 5 to 6 As shown, push shafts 703 are fixedly installed on the top of both ring frames 7, and cylindrical shafts 701 are symmetrically slidably connected to the inner wall of the welding box 1. The outer walls of the two push shafts 703 are slidably connected to the inner walls of the two cylindrical shafts 701 respectively. A return spring 702 is provided between the outer walls of the two push shafts 703 and the inner walls of the two cylindrical shafts 701. The outer walls of the four ring blocks 1102 are slidably connected to the inner walls of the two ring frames 7 in pairs respectively.

[0057] When the holding arc block 5 is pushed by the aluminum pipe, the holding arc block 5 will drive the push rod 10 to move. The push rod 10 will pull the ring block 1102 outward within the ring frame 7. The ring frame 7 will then be pushed by the ring block 1102 and pushed by the push shaft 703 within the cylinder shaft 701 to push the return spring 702 upward. This ensures that when aluminum pipes of different sizes are welded into the welding box 1, a complete semi-ring can always be formed between the ring frame 7 and the ring block 1102. The trowelding block 11 inside the ring block 1102 can always be attached to the outer wall of the aluminum pipe, providing a contact basis for its troweling motion during welding, and playing the role of driving the trowelding block 11 to trowel aluminum pipes of different sizes during welding.

[0058] Working principle: When welding two aluminum pipes, the two pipes are placed on one side of two pipe-fixing boxes 2 respectively. Then, the pipe-fixing components inside the two pipe-fixing boxes 2 are driven to fix the two aluminum pipes. Once the two pipes are fixed, two electric sliders 301 are driven to slide relative to each other within the guide rail 3. The two electric sliders 301 then move the two pipes into the welding box 1 through the two pipe-fixing boxes 2. When one end of the two pipes contacts each other, the electric sliders 301 stop moving, and one end of the two pipes is aligned and connected. Then, the grinding block 801 is driven by the grinding film assembly to grind the pipes. The welding operation is carried out at the welding position between the two pipes. The grinding block 801 grinds the welding position, thereby removing the oxide film at the welding position of the aluminum pipe. When the oxide film is removed, the two laser welding heads 4 are driven to perform the welding operation on the aluminum pipe, thereby realizing the laser welding operation on the aluminum pipe. By setting the grinding film component, the oxide film on the aluminum pipe is ground and removed before welding, which can avoid the generation of pores during welding, improve the efficiency and yield of welding, and make it easier to weld aluminum pipes.

[0059] When it is necessary to fix the aluminum pipe, one end of the aluminum pipe is placed on one side of the fixing box 2, and then the drive motor 201 drives the connecting block 203 to rotate. The connecting block 203 will pull the clamping shaft 202 to rotate. The clamping shaft 202 will then move towards the center of the fixing box 2 by rotation. When the outer walls of multiple clamping shafts 202 are in contact with the outer wall of the aluminum pipe, the multiple clamping shafts 202 will clamp and fix the aluminum pipe by rotation, thus fixing the pipe. Through the symmetrical arrangement of the two fixing boxes 2, when fixing two aluminum pipes, it can be ensured that the center position of the two aluminum pipes is always at the same horizontal position, which makes it easier for the laser welding head 4 to perform the alignment welding operation between the two.

[0060] When motor 201 drives clamping shaft 202 to rotate via connecting block 203, clamping shaft 202 will rotate and slide on slide groove 205 in rotating plate 204, thereby moving towards the outer wall of aluminum pipe through the opening of slide groove 205, thus clamping it. When welding of aluminum pipe is required, laser welding head 4 can be driven to perform laser welding between two aluminum pipes. By driving two motors 201 to continue working, since clamping shaft 202 and pipe are in a clamping state at this time, when motor 201 rotates, motor 201 will drive rotating plate 204 to rotate in fixed pipe box 2 through the limit of clamping shaft 202 and aluminum pipe. Motor 201 will drive aluminum pipe to rotate, so that when laser welding head 4 welds aluminum pipe, motor 201 drives aluminum pipe to rotate, so that laser welding head 4 can perform circular welding on aluminum pipe, playing the role of cooperating with laser welding head 4 to perform circular welding on aluminum pipe;

[0061] When the electric slider 301 drives the aluminum pipe into the welding box 1 through the fixed pipe box 2, it pushes the four grinding blocks 801 to fit against the welding joint between the two aluminum pipes. Then, the drive motor 201 performs the operation. The motor 201 drives the aluminum pipe to rotate through the clamping shaft 202. The four grinding blocks 801 grind the welding joint between the two aluminum pipes by rotating the two aluminum pipes themselves, thereby removing the oxide film on the surface of the aluminum pipe and playing the role of removing the oxide film at the welding joint of the aluminum pipe.

[0062] When aligning and connecting two aluminum pipes, one of the electric sliders 301 is first driven to move one aluminum pipe into the welding box 1. When one end of the aluminum pipe is in contact with one side of the multiple grinding blocks 801, the electric slider 301 is stopped to prepare for the connection between the two aluminum pipes. Then, the other electric slider 301 is driven to move the other aluminum pipe into the welding box 1. When the aluminum pipe enters the welding box 1, the outer wall of the aluminum pipe pushes the two pipe-holding arc blocks 5 to move. The two pipe-holding arc blocks 5 then press against the pressure spring 601 on the limiting rod 6 to move, and the two pipe-holding arc blocks 5 open to both sides of the welding box 1. The two pipe-holding arc blocks 5 then drive the two laser welding heads 4 and the arc rod 8 to move outward. When one end of two aluminum pipes is attached to each other, the two aluminum pipes will be connected. The purpose of this setting is that, due to the different sizes of the multiple aluminum pipes, on the one hand, it can ensure that the welding distance between the laser welding head 4 and the aluminum pipe welding point can always be kept consistent when the laser welding head 4 is welding aluminum pipes of different sizes, so that the laser welding head 4 can better weld the aluminum pipes. On the other hand, it can make the pipe holding arc block 5 drive multiple grinding blocks 801 to adjust to each other through the arc rod 8, so that multiple grinding blocks 801 can grind the welding position of the aluminum pipes regardless of the size and geometry of the aluminum pipes being welded, increasing the flexibility and adaptability of the device in use, and playing the role of grinding aluminum pipes of different sizes.

[0063] When the grinding block 801 finishes grinding the aluminum pipe, it is pushed out of the weld joint of the aluminum pipe. At the same time, the ring frame 7 is pushed to the weld joint position of the aluminum pipe. The smearing block 11 in the ring block 1102 will always be in contact with the outer wall of the weld joint of the aluminum pipe under the elastic push of the push spring 1101. Then, the laser welding head 4 is driven to perform welding operation on the aluminum pipe. With the help of the motor 201 to drive the aluminum pipe to rotate, the smearing block 11 can perform continuous smearing operation on the weld joint of the aluminum pipe. On the one hand, it can prevent the generation of bubbles due to incomplete oxidation treatment during welding. On the other hand, it can limit the shape of the weld mark during welding, flatten the excess molten metal or fill the depression area, making the weld surface smoother. This not only reduces the amount of subsequent grinding work, but also improves the aesthetics of the weld after welding.

[0064] When it is necessary to move the grinding block 801 out of the welded joint of the aluminum pipe, the hydraulic rod 9 drives the shift plate 904 to move within the pipe holding arc block 5. When the shift plate 904 moves, it will drive the arc rod 8 to move, thereby causing the arc rod 8 to move the grinding block 801 out of the welded joint of the aluminum pipe. At the same time, through the setting of the transmission component, when the hydraulic rod 9 moves the grinding block 801 out of the welded joint of the aluminum pipe, the hydraulic rod 9 will drive the ring frame 7 to move towards the welded joint of the aluminum pipe through the transmission component, thereby causing the welding block 11 to move towards the welded joint of the aluminum pipe, which plays the role of driving the grinding block 801 and the welding block 11 to be adjusted synchronously.

[0065] When the shifting plate 904 moves the arc rod 8, the arc rod 8 will move the grinding block 801 on the guide rod 802. The arc rod 8 will then move in the groove inside the holding arc block 5, thereby moving the arc rod 8 and the grinding block 801 out of the weld of the aluminum pipe. The guide rod 802 plays a guiding role, making the arc rod 8 more stable when it moves into the holding arc block 5.

[0066] When the hydraulic rod 9 moves the shift plate 904 back, the shift plate 904 will move the rack 903. When the rack 903 moves, it will push the gear 901 to rotate. The gear 901 will then drive the rack 902 to move in the opposite direction to the rack 903 through the tooth meshing. The rack 902 will then drive the push rod 10 to move, thereby pushing the ring frame 7 to the welding position of the aluminum pipe through the ring block 1102, so as to make the welding block 11 and the cylinder shaft 701 synchronized.

[0067] When the holding arc block 5 is pushed by the aluminum pipe, the holding arc block 5 will drive the push rod 10 to move. The push rod 10 will pull the ring block 1102 outward within the ring frame 7. The ring frame 7 will then be pushed by the ring block 1102 and pushed by the push shaft 703 within the cylinder shaft 701 to push the return spring 702 upward. This ensures that when aluminum pipes of different sizes are welded into the welding box 1, a complete semi-ring can always be formed between the ring frame 7 and the ring block 1102. The trowelding block 11 inside the ring block 1102 can always be attached to the outer wall of the aluminum pipe, providing a contact basis for its troweling motion during welding, and playing the role of driving the trowelding block 11 to trowel aluminum pipes of different sizes during welding.

[0068] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum material laser welding machine characterized by comprising: The utility model provides a welding box, the both sides symmetry fixed mounting of welding box have guide rail, two guide rails's inside all slide to set up electric sliding block, two electric sliding blocks's top all fixed mounting have fixed pipe box, two fixed pipe box's inside all set up fixed pipe subassembly, fixed pipe subassembly is used for to two aluminium material pipeline fixed, the inside symmetry of welding box is provided with laser welding head, the inside symmetry of welding box is provided with film grinding subassembly, film grinding subassembly includes polishing block, film grinding subassembly is used for through polishing block and is polished the welding position between two aluminium material pipeline, The film grinding subassembly further includes arc rods, the number of the arc rods and the polishing blocks is the same and is four, the four polishing blocks are respectively fixedly installed on one end of the four arc rods, the outer walls of the four polishing blocks can be in contact with the outer walls of the aluminum material pipes, and the four polishing blocks are respectively placed on one side of the two laser welding heads. The inner wall of the welding box is fixedly installed with limit sliding rods, the outer walls of the two limit sliding rods are slidably connected with pipe holding arc blocks, the one sides of the two pipe holding arc blocks are fixedly installed with retaining frames, the outer walls of the two retaining frames are fixedly connected with the outer walls of the two laser welding heads, the outer walls of the two pipe holding arc blocks and the inner wall of the welding box are provided with pressure springs, the two pressure springs are respectively arranged outside the two limit sliding rods, one end of the two pipe holding arc blocks is provided with an inclined surface, the outer walls of the two pipe holding arc blocks are slidably connected with the outer walls of the two pipe holding arc blocks, and one end of the four arc rods is respectively placed inside the two pipe holding arc blocks. The inside of the welding box is symmetrically provided with ring frames, the inside of the two ring frames is symmetrically provided with ring blocks, one end of the four ring blocks is slidably connected with the outer walls of the four arc rods, the inside of the four ring blocks is slidably connected with wiping blocks, the outer walls of the four wiping blocks can be in contact with the outer walls of the welding positions of the aluminum material pipes, and a plurality of push springs are arranged between the top of the four wiping blocks and the inner wall of the four ring blocks. The inside of the two pipe holding arc blocks is fixedly installed with hydraulic rods, the output ends of the two hydraulic rods are fixedly installed with displacement plates, the outer walls of the two displacement plates are fixedly connected with the outer walls of the four arc rods, and the two displacement plates and the two ring frames are provided with transmission assemblies.

2. The aluminum material laser welding machine according to claim 1, characterized in that: The inside of the fixed pipe box is fixedly installed with a motor, the output end of the motor is fixedly installed with a plurality of connecting blocks, one end of the plurality of connecting blocks is hingedly connected with clamping shaft rods, and the outer walls of the plurality of clamping shaft rods can be in contact with the outer walls of the aluminum material pipes.

3. The aluminum material laser welding machine according to claim 2, characterized in that: The inner wall of the fixed pipe box is rotatably connected with a rotating plate, the inner wall of the rotating plate is provided with a plurality of sliding grooves, the outer walls of the plurality of clamping shaft rods are slidably connected with the inner walls of the plurality of sliding grooves, and the outer wall of the rotating plate can be in contact with one end of the aluminum material pipe.

4. The aluminum material laser welding machine according to claim 3, characterized in that: The outer walls of the two pipe holding arc blocks are symmetrically provided with recesses, the inner walls of the four recesses are fixedly installed with guide rods, and the inner walls of the four arc rods are slidably connected with the outer walls of the four guide rods.

5. The aluminum material laser welding machine according to claim 4, characterized in that: The transmission assembly comprises gears, the number of gears is four, the four gears are arranged symmetrically, two gears are arranged in the two holding-tube arc blocks respectively, the two ends of the four gears are rotationally connected with the inner walls of the two holding-tube arc blocks respectively, one side of each of the two displacement plates is fixedly installed with a toothed rod, the inner walls of the two holding-tube arc blocks are symmetrically and slidably connected with racks, the teeth on the four racks and the toothed rod are engaged with the teeth on the four gears respectively, one end of each of the four racks is fixedly installed with a push rod, and one end of each of the four push rods is fixedly connected with the outer wall of the four ring blocks.

6. The aluminum material laser welding machine according to claim 5, characterized in that: The top of each of the two ring frames is fixedly installed with a push shaft, the inner wall of the welded box is symmetrically and slidably connected with a cylinder shaft, the outer wall of each of the two push shafts is slidably connected with the inner wall of each of the two cylinder shafts, a return spring is arranged between the outer wall of each of the two push shafts and the inner wall of each of the two cylinder shafts, and the outer wall of each of the four ring blocks is slidably connected with the inner wall of each of the two ring frames.

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