A welding device and method for aluminum profile machining

Abstract

This invention discloses a welding device and method for aluminum profile processing, relating to the technical field of welding devices. It includes a support, a welding head, and a clamping platform. The welding head is vertically and flexibly mounted on the upper side of the support. A hollow rotating platform is provided on the upper side of the clamping platform. The hollow rotating platform has a fixed part fixed to the clamping platform and a rotating part rotatably mounted on one side of the fixed part. The hollow rotating platform is equipped with a clamping and positioning mechanism. The advantages are: through the clamping and positioning mechanism, new pipe segments can be sequentially stacked and end-to-end joints completed without disassembling the already clamped aluminum pipes. With the help of a steering component, the aluminum pipes can rotate circumferentially, allowing the welding head to continuously complete local spot welding operations at multiple connection points. This solves the problem in existing technologies where welding multiple aluminum pipe segments requires repeated disassembly and assembly, making continuous operation impossible. It has the advantages of simple operation, reliable joint accuracy, improved welding efficiency, and low risk of pipe surface damage.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a welding device and method for processing aluminum profiles. Background Technology

[0002] Aluminum profiles refer to profiles made of aluminum alloys, which are widely used in construction, transportation, machinery and other fields. In order to obtain profiles with different structures, they usually need to be combined and welded. The welding methods usually include tungsten inert gas welding, metal inert gas welding, local spot welding and laser welding.

[0003] Typically, handheld laser welding machines or integrated robotic laser welding machines can be used for welding aluminum profiles. Currently, when welding pipes, it is usually necessary to butt and clamp multiple profiles, and then use a clamp to drive the welding head to rotate around the circumference of the pipe.

[0004] However, because the pipe fittings need to be fixed with clamps before welding can be carried out, and when there are more than two pipe welding sections, the welded aluminum pipe needs to be loosened and a new aluminum pipe section needs to be connected for welding. This means that each time aluminum pipe sections are stacked, the aluminum pipes need to be removed and their positions adjusted, and then the aluminum pipes need to be clamped and connected again, which makes it impossible for the device to carry out welding work continuously and affects work efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a welding device for aluminum profile processing, which solves the problem mentioned in the background art that existing devices are difficult to use for continuous welding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A welding device for aluminum profile processing includes a support, a welding head, and a clamping platform. The welding head is movably mounted on the upper side of the support. A hollow rotating platform is provided on the upper side of the clamping platform. The hollow rotating platform has a fixed part fixed to the clamping platform and a rotating part rotatably mounted on one side of the fixed part. The hollow rotating platform is provided with a clamping and positioning mechanism. The clamping platform, the hollow rotating platform, and the clamping and positioning mechanism appear as a group and are symmetrically arranged along the length of the support. The clamping and positioning mechanism includes a support part, a gripper part, a telescopic part, a steering component, and a positioning component. The support part is annular and fixedly installed with the rotating part of the hollow rotating platform. The inner circumferential surface of the support part forms a channel through which the aluminum tube passes. The gripper part is rotatably installed on the side of the support part away from the rotating part. Multiple sets of gripper parts have a circumferential array of support rods that contact the outer circumferential surface of the aluminum tube on the side close to each other. The telescopic part is fixedly installed with the rotating part and passes through the support part and is hinged to the gripper part. The steering component is fixed on the outer circumferential surface of the fixed part. The outer circumferential surface of the rotating part has a meshing groove. The steering component meshes with the meshing groove. The positioning component is installed on the side of the fixed part away from the gripper part. The gripper part has rollers that contact the outer circumferential surface of the aluminum tube.

[0007] Furthermore, the gripper portion includes a clamping plate, rollers, and a support claw in the shape of a bent rod. The clamping plate, when viewed from above, is a rectangle extending along the length of the aluminum tube. The grippers appear in groups and are arranged in an array along the circumference of the support portion. One end of the support claw away from the connection point with the support portion has a connector that connects to the connecting portion. An arc-shaped cut is provided on the inner side of the clamping plate, penetrating the axial direction of the support portion. The cut is spaced from the two sides of the clamping plate in the width direction, forming a rectangular plane symmetrical along its width direction on the inner side of the clamping plate. The clamping plate is provided with connecting portions arranged in an array along the length direction of the rectangular plane at the rectangular plane. The rollers are rotatably connected to the connecting portions, and their axes are perpendicular to the axis of the aluminum tube. A rubber layer is provided on the outer circumferential surface of the rollers.

[0008] Furthermore, the connecting part is fixedly connected to the middle of the outer side of the clamping plate and extends axially along the width direction of the clamping plate. A torsion spring is coaxially fixedly connected to the connecting part, and the torsion spring is fixedly set with the joint.

[0009] Furthermore, the support rods are symmetrically arranged along the width direction of the clamping plate and extend along the length direction of the clamping plate, and the outer peripheral surface of the support rods is tangent to the outer peripheral surface of the rollers.

[0010] Furthermore, the telescopic part includes a cylinder, which is arranged circumferentially along the rotating part and the cylinder body is fixed to the rotating part. The cylinder output shaft extends through the support part along the thickness direction and has connection points at its end and the inner arc surface of the bent rod. A connecting rod is hinged to the connection point.

[0011] Furthermore, the support part is provided with a circumferential array of connection points on the side near the rotating part, which are rotatably connected to the end of the claw away from the joint. The support part is also provided with a circumferential array of support rods on the side near the rotating part. The support rods are alternately arranged with the cylinder and are fixedly connected to the rotating part.

[0012] Furthermore, the steering assembly includes a mounting base, which is fixedly connected to the outer peripheral surface of the fixed part. A motor is fixedly connected inside the mounting base, and a worm extending toward the meshing groove is coaxially fixedly connected to the output shaft of the motor. The meshing groove is formed on the outer peripheral surface of the rotating part and is a worm wheel that meshes with the worm.

[0013] Furthermore, the positioning component includes multiple support pillars, each of which is fixedly connected to the side of the fixing part away from the gripper. A support plate is fixedly connected to one end of each of the multiple support pillars away from the gripper. An electric push rod is fixedly connected to the side of the support plate facing the gripper. A push plate is coaxially fixedly connected to the output shaft of the electric push rod. The push plate is coplanar with the inner circumferential surface of the support part.

[0014] Furthermore, a support is fixedly connected to the bottom of the bracket, and a bidirectional screw is rotatably connected inside the support. The bidirectional screw passes through the clamping platform and is threadedly connected to the clamping platform. Through the above arrangement, the clamping length of the aluminum tube can be increased.

[0015] A welding method for processing aluminum profiles, using the aforementioned welding apparatus for processing aluminum profiles, includes the following steps: S1. Place the aluminum tube inside the gripper portion, then start the cylinder. The cylinder contracts synchronously and pulls the claw through the output shaft. The claw rotates along the support portion and the claw connecting shaft, thereby driving multiple clamping plates to approach each other radially along the aluminum tube.

[0016] S2. Place the aluminum tubes of the desired length between the clamped aluminum tubes and place them on multiple sets of support rods. Clamp the multiple aluminum tubes by retracting the cylinder. Then, start the electric push rod. The output of the electric push rod drives the push plate to move along the axial direction of the aluminum tubes, fixing the multiple aluminum tubes along their axial direction.

[0017] S3. According to the preset aluminum tube segment length, the electric actuator pushes the aluminum tube to make the adjacent end faces of multiple aluminum tubes contact. At the same time, the position of the aluminum tube connection gap relative to the welding head is calculated according to the extension length of the electric actuator and the segment length of the aluminum tube. The aluminum tube connection gap is positioned by the output or retraction of multiple electric actuators and is positioned above the welding head. Then, the motor is started, and the output of the motor drives the worm gear drive. The rotation of the worm gear drives the rotating part to rotate, making the aluminum tube rotate circumferentially. At the same time, the height of the welding head is adjusted so that its welding end contacts one of the aluminum tube connection gaps. The welding head performs local spot welding on the connection gap in sequence to complete the initial connection of the aluminum tubes.

[0018] S4. Repeat the above preliminary connection operation according to the number of aluminum tubes, and finally connect all aluminum tubes into one aluminum tube. Then, position the multiple welds of the aluminum tubes and the welding head in sequence, and use the steering component to drive the aluminum tube to rotate around the axis and complete the welding with the help of the welding head.

[0019] Compared with existing technologies, the advantages of this invention are: 1. By setting up a clamping and positioning mechanism symmetrically arranged along the length of the support, and setting a support rod on the inner side of the clamping claw, with the outer circumferential surface of the support rod coplanar with the outer circumferential surface of the roller, the operator can directly place the new aluminum tube segment on the support rod and keep it coaxial with the clamped aluminum tube without removing the already clamped aluminum tube. This avoids repeated clamping and position adjustment when welding multiple segments, and improves the continuity of welding.

[0020] 2: By setting up a clamping plate with rollers arrayed along the length direction in the clamping part and torsion spring elastic support, and in conjunction with the positioning component on the fixing part, it not only achieves stable radial clamping of the aluminum tube, but also allows the aluminum tube to be pushed and adjusted axially by the electric push rod in the clamping state. The end face connection of multiple aluminum tubes and the adjustment of the weld position can be completed without loosening the clamp, reducing the burden of manual operation.

[0021] 3: By setting up a worm gear in the steering assembly to mesh with the worm wheel on the outer circumference of the rotating part, and in conjunction with the air passage or line hole reserved inside the hollow rotating platform, the aluminum tube can be driven to rotate circumferentially under the continuous air supply of the cylinder, so that the welding head can perform local spot welding on different positions of the circumferential weld in sequence, and the welding of all connection points can be completed without disassembling the aluminum tube.

[0022] In summary, this invention, through the use of a clamping and positioning mechanism, allows for the sequential stacking of new pipe segments and the completion of end-to-end connections without the need to disassemble already clamped aluminum pipes. Combined with a steering component that drives the aluminum pipes to rotate circumferentially, the welding head can continuously complete local spot welding operations at multiple connection points. This solves the problem in existing technologies where welding multiple aluminum pipe segments requires repeated disassembly and assembly, preventing continuous operation. It offers advantages such as simple operation, reliable connection accuracy, improved welding efficiency, and low risk of surface damage to the pipes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of a welding device for aluminum profile processing proposed in this invention; Figure 2 This is a schematic diagram of the welding device for aluminum profile processing proposed in this invention from another perspective. Figure 3 This is a cross-sectional view proposed in this invention; Figure 4 This is a schematic diagram of the gripper portion proposed in this invention; Figure 5 This is a schematic diagram of the support structure proposed in this invention. Figure 6 This is a schematic diagram of the structure of the cylinder proposed in this invention; Figure 7 This is a schematic diagram of the structure of the support rod proposed in this invention; Figure 8 This is a schematic diagram of the structure of the steering component proposed in this invention; Figure 9 This is a schematic diagram of the structure of the positioning component proposed in this invention; Figure 10 This is a schematic diagram of the structure of the bidirectional screw proposed in this invention.

[0024] In the diagram: 1. Bracket; 2. Welding head; 3. Clamping platform; 4. Hollow rotating platform; 5. Clamping and positioning mechanism; 51. Support part; 52. Gripper part; 521. Support claw; 522. Clamping plate; 523. Roller; 53. Telescopic part; 531. Cylinder; 532. Connecting rod; 54. Steering assembly; 541. Mounting base; 542. Motor; 543. Worm gear; 55. Positioning assembly; 551. Support column; 552. Support plate; 553. Electric actuator; 554. Push plate; 6. Connecting part; 7. Support rod; 8. Support; 9. Bidirectional screw. Detailed Implementation

[0025] Reference Figures 1-10 A welding device for aluminum profile processing includes a support 1, a welding head 2, and a clamping platform 3. The welding head 2 is vertically mounted on the upper side of the support 1. A hollow rotating platform 4 is mounted on the upper side of the clamping platform 3. The hollow rotating platform 4 can be a precision hollow rotating platform (including cross roller bearing type), which has holes for installing air passages or lines. The specific model depends on the size of the aluminum tube to which this device is applicable. The hollow rotating platform 4 has a fixed part that is fixed to the clamping platform 3 and a rotating part that is rotatably mounted on one side of the fixed part. The hollow rotating platform 4 is equipped with a clamping and positioning mechanism 5. The clamping platform 3, the hollow rotating platform 4, and the clamping and positioning mechanism 5 appear as a group and are symmetrically arranged along the length of the support 1. The clamping and positioning mechanism 5 includes a support part 51, a gripper part 52, a telescopic part 53, a steering assembly 54, and a positioning assembly 55. The support part 51 is annular and fixedly mounted to the rotating part of the hollow rotating platform 4. The inner circumferential surface of the support part 51 forms a channel through which the aluminum tube passes. The gripper part 52 is rotatably mounted on the side of the support part 51 away from the rotating part. On the side where multiple sets of gripper parts 52 are close to each other, there is a circumferentially arrayed support rod 7 that contacts the outer circumferential surface of the aluminum tube. The telescopic part 53 is fixedly mounted to the rotating part and passes through the support part 51 and is hinged to the gripper part 52. The steering assembly 54 is fixed to the outer circumferential surface of the fixed part. The outer circumferential surface of the rotating part has an engagement groove, and the steering assembly 54 engages with the engagement groove. The positioning assembly 55 is located on the side of the fixed part away from the gripper part 52. The gripper part 52 has a contact with the outer circumferential surface of the aluminum tube. With the roller 523 arranged as described above, when the telescopic part 53 retracts, it drives the gripper part 52 to clamp the aluminum tube. The operator can place the third section of the tube between the clamped aluminum tubes and place it on the support rod 7. Then, the positioning component 55 pushes the clamped aluminum tube so that the end faces of the three aluminum tubes contact each other, thus completing the positioning of the aluminum tube. Then, the third section of the aluminum tube is partially spot welded to one of the clamped aluminum tubes. Then, the position of the clamped aluminum tube is released and adjusted. Then, the new aluminum tube segments are connected repeatedly. Finally, the two extended aluminum tube segments are fixed again to complete the initial connection of multiple aluminum tubes. Then, the positions of the two ends of the aluminum tubes are adjusted by the output of multiple sets of positioning components 55 so that the connecting part 6 of the adjacent aluminum tubes is located on the upper side of the welding head 2. Then, the welding of multiple aluminum tubes can be completed continuously without disassembling the aluminum tubes.

[0026] The gripper portion 52 includes a clamping plate 522, a roller 523, and a support claw 521 in the shape of a bent rod. The clamping plate 522, in its top view, is a rectangle extending along the length of the aluminum tube. The gripper portions 52 appear in groups and are arranged in a circumferential array along the support portion 51. One end of the support claw 521, away from its connection point with the support portion 51, has a connector that connects to the connecting portion 6. An arc-shaped cut is provided on the inner side of the clamping plate 522, penetrating axially along the support portion 51. The cut is spaced apart from the two sides of the clamping plate 522 in the width direction. 2. The inner side forms a rectangular plane symmetrical along its width direction. The clamping plate 522 is provided with a connecting part 6 arranged in an array along the length direction of the rectangular plane. The roller 523 is rotatably connected to the connecting part 6 and its axis is set perpendicular to the axis of the aluminum tube. The outer peripheral surface of the roller 523 is provided with a rubber layer. Through the above arrangement, multiple rollers 523 clamp the outer peripheral surface of the aluminum tube and allow the aluminum tube to slide along the array direction of the rollers 523. At the same time, the aluminum tube is axially clamped by multiple sets of positioning components 55 to ensure the stability of the aluminum tube.

[0027] The connecting part 6 is fixedly connected to the middle of the outer side of the clamping plate 522 and extends axially along the width direction of the clamping plate 522. A torsion spring is fixedly connected to the connecting part 6 on the same axis. The torsion spring is fixedly set with the connector. Through the above arrangement, the torsion spring provides elastic support to the clamping plate 522 and maintains the relative angle between the clamping plate 522 and the support claw 521. When the connector of the support claw 521 moves radially toward the aluminum tube, the clamping plate 522 drives the roller 523 to clamp the aluminum tube and increase the contact area with the aluminum tube.

[0028] The support rods 7 are symmetrically arranged along the width of the clamping plate 522 and extend along the length of the clamping plate 522. The outer circumferential surface of the support rods 7 is tangent to the outer circumferential surface of the rollers 523. With the above arrangement, the third section of aluminum tube can be placed on the support rods 7 and supported by the support rods 7, so that the outer circumferential surfaces of multiple aluminum tubes are coplanar. The clamping claws 52 clamp the aluminum tubes independently through the support claws 521. At the same time, multiple sets of support rods 7 directly clamp the third section of aluminum tube, realizing the rapid clamping of multiple aluminum tubes.

[0029] The telescopic part 53 includes a cylinder 531. The cylinder 531 is a welding-specific clamping cylinder. The specific model depends on the size of the aluminum tube applicable to this device. Each set of cylinders 531 outputs synchronously. The control method is technically mature and will not be described in detail. The cylinders 531 are arranged in a circumferential array along the rotating part, and the cylinder body is fixed to the rotating part. The output shaft of the cylinder 531 extends through the thickness direction of the support part 51, and the end and the inner arc surface of the bent rod have connection points. The connection points are hinged to the connecting rod 532.

[0030] The support part 51 is arranged in a circumferential array on one side near the rotating part, with connection points that are rotatably connected to the end of the claw 521 away from the connector. With the above arrangement, when the cylinder 531 outputs, its output shaft drives the claw 521 to rotate circumferentially along the connection point through the connecting rod 532, thereby driving the clamping plate 522 to approach the outer circumferential surface of the aluminum tube.

[0031] The support part 51 has a circumferential array of support rods on one side near the rotating part. The support rods are alternately arranged with the cylinder 531 and fixedly connected to the rotating part. Through the above arrangement, the support part 51 and the rotating part are fixed together, so that the gripper part 52 and the telescopic part 53 can rotate circumferentially relative to the fixed part.

[0032] The steering assembly 54 includes a mounting base 541, which is fixedly connected to the outer peripheral surface of the fixed part. A motor 542 is fixedly connected inside the mounting base 541. The motor 542 is a general-purpose motor, and the specific model depends on the size of the aluminum tube applicable to this device. The output shaft of the motor 542 is coaxially fixedly connected to a worm 543 extending toward the meshing groove. The meshing groove is opened on the outer peripheral surface of the rotating part and is a worm wheel that meshes with the worm 543. Through the above arrangement, the rotation of the worm 543 drives the worm wheel to rotate circumferentially along the rotating part, thereby driving the aluminum tube to rotate in the same direction.

[0033] The positioning component 55 includes multiple support columns 551, each fixedly connected to the side of the fixing part away from the claw 521. A support plate 552 is fixedly connected to the end of each support column 551 away from the claw 52. An electric actuator 553 is fixedly connected to the side of the support plate 552 facing the claw 521. The electric actuator 553 is a linear electric actuator, the specific model of which depends on the size of the aluminum tube applicable to this device. A push plate 554 is coaxially fixedly connected to the output shaft of the electric actuator 553. The push plate 554 is coplanar with the inner circumferential surface of the support part 51. With this arrangement, when the multiple electric actuators 553 output, the support plate 552 pushes the aluminum tube to slide along the array direction of the rollers 523, causing adjacent ends of the multiple aluminum tubes to fit together. Since the extension length of the electric actuator 553 can be determined after selection, and the length of the aluminum tube section can be known through measurement, and the installation position of the welding head 2 relative to the electric actuator 553 is fixed, the axial position of the aluminum tube relative to the welding head 2 can be adjusted according to the extension length of each electric actuator 553.

[0034] The bottom of the bracket 1 is fixedly connected to a support 8, and a double-ended screw 9 is rotatably connected inside the support 8. The double-ended screw 9 passes through the clamping platform 3 and is threadedly connected to the clamping platform 3 respectively. Through the above arrangement, the clamping length of the aluminum tube can be increased.

[0035] A welding method for processing aluminum profiles includes the following steps: S1. Place the aluminum tube inside the jaw part 52 on one side, and then start the cylinder 531. The cylinder 531 retracts synchronously and pulls the support jaw 521 through the output shaft. The support jaw 521 rotates along the connecting shaft between the support part 51 and the support jaw 521, thereby driving multiple clamping plates 522 to approach each other radially along the aluminum tube.

[0036] S2. Place the aluminum tubes of the desired length between the clamped aluminum tubes and set them on multiple sets of support rods 7. The cylinder 531 retracts to clamp the multiple aluminum tubes. Then, start the electric push rod 553. The output of the electric push rod 553 drives the push plate 554 to move along the axial direction of the aluminum tubes, fixing the multiple aluminum tubes along their axial direction.

[0037] S3. According to the preset aluminum tube segment length, the electric actuator 553 pushes the aluminum tube to make the adjacent end faces of multiple aluminum tubes contact. At the same time, the position of the aluminum tube connection gap relative to the welding head 2 is calculated based on the extension length of the electric actuator 553 and the segment length of the aluminum tube. The aluminum tube connection gap is positioned by the output or retraction of multiple electric actuators 553, and the aluminum tube connection gap is positioned on the upper side of the welding head 2. Then, the motor 542 is started. The output of the motor 542 drives the worm gear 543 to drive the rotation. The rotation of the worm gear 543 drives the rotating part to rotate, making the aluminum tube rotate circumferentially. At the same time, the height of the welding head 2 is adjusted so that its welding end contacts one of the aluminum tube connection gaps. The welding head 2 performs local spot welding on the connection gap in sequence to complete the initial connection of the aluminum tubes.

[0038] S4. Repeat the above preliminary connection operation according to the number of aluminum tubes, and finally connect all aluminum tubes into one aluminum tube. Then, position the multiple welds and welding heads 2 of the aluminum tubes in sequence, and use the steering component 54 to drive the aluminum tubes to rotate around the axis and complete the welding with the help of the welding head 2.

[0039] 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 claimed invention.

Claims

1. A welding device for aluminum profile processing, comprising a support (1), a welding head (2), and a clamping platform (3), characterized in that, The welding head (2) is vertically mounted on the upper side of the bracket (1). A hollow rotating platform (4) is provided on the upper side of the clamping platform (3). The hollow rotating platform (4) has a fixed part that is fixed to the clamping platform (3) and a rotating part that is rotatably mounted on one side of the fixed part. The hollow rotating platform (4) is provided with a clamping and positioning mechanism (5). The clamping platform (3), the hollow rotating platform (4) and the clamping and positioning mechanism (5) appear as a group and are symmetrically arranged along the length direction of the bracket (1). The clamping and positioning mechanism (5) includes a support part (51), a gripper part (52), a telescopic part (53), a steering assembly (54), and a positioning assembly (55). The support part (51) is annular and fixedly installed with the rotating part of the hollow rotating platform (4). The inner circumferential surface of the support part (51) forms a channel through which an aluminum tube passes. The gripper part (52) is rotatably installed on the side of the support part (51) away from the rotating part. The side of multiple sets of gripper parts (52) that are close to each other has a circumferential array with aluminum. The support rod (7) is in contact with the outer circumferential surface of the tube. The telescopic part (53) is fixedly installed with the rotating part and passes through the support part (51) and is hinged with the gripper part (52). The steering assembly (54) is fixed on the outer circumferential surface of the fixed part. The outer circumferential surface of the rotating part is provided with a meshing groove. The steering assembly (54) is meshed with the meshing groove. The positioning assembly (55) is located on the side of the fixed part away from the gripper part (52). The gripper part (52) has a roller (523) in contact with the outer circumferential surface of the aluminum tube.

2. The welding device for aluminum profile processing according to claim 1, characterized in that, The clamping part (52) includes a clamping plate (522), a roller (523), and a support claw (521) in the shape of a bent rod. The clamping plate (522) is a rectangle extending along the length of the aluminum tube when viewed from above. The clamping parts (52) appear in groups and are arranged in a circumferential array along the support part (51). The end of the support claw (521) away from the connection point with the support part (51) has a joint that connects to the connecting part (6). The inner side of the clamping plate (522) is provided with an arc-shaped cut that penetrates along the axial direction of the support part (51). The cut is spaced from the two sides of the clamping plate (522) in the width direction. The spaced space forms a rectangular plane symmetrical along its width direction on the inner side of the clamping plate (522). The clamping plate (522) is provided with a connecting part (6) arranged in an array along the length direction of the rectangular plane at the rectangular plane. The roller (523) is rotatably connected to the connecting part (6) and its axis is set perpendicular to the axis of the aluminum tube. The outer circumferential surface of the roller (523) is provided with a rubber layer.

3. The welding device for aluminum profile processing according to claim 2, characterized in that, The connecting part (6) is fixedly connected to the middle of the outer side of the clamp (522) and extends axially along the width direction of the clamp (522). A torsion spring is coaxially fixedly connected to the connecting part (6), and the torsion spring is fixedly set with the connector.

4. The welding device for aluminum profile processing according to claim 2, characterized in that, The support rod (7) is symmetrically arranged along the width direction of the clamping plate (522) and extends along the length direction of the clamping plate (522). The outer peripheral surface of the support rod (7) is tangent to the outer peripheral surface of the roller (523).

5. The welding device for aluminum profile processing according to claim 1, characterized in that, The telescopic part (53) includes a cylinder (531), which is arranged circumferentially along the rotating part and the cylinder body is fixed to the rotating part. The output shaft of the cylinder (531) extends through the support part (51) in the thickness direction and has connection points at the end and the inner arc surface of the bent rod. The connection points are hinged to the connecting rod (532).

6. The welding device for aluminum profile processing according to claim 2, characterized in that, The support part (51) has a circumferential array of connection points arranged on the side near the rotating part, which are rotatably connected to the end of the claw (521) away from the connector. The support part (51) has a circumferential array of support rods on the side near the rotating part. The support rods and the cylinder (531) are alternately arranged and fixedly connected to the rotating part.

7. The welding device for aluminum profile processing according to claim 1, characterized in that, The steering assembly (54) includes a mounting base (541), which is fixedly connected to the outer peripheral surface of the fixed part. A motor (542) is fixedly connected inside the mounting base (541). The output shaft of the motor (542) is coaxially fixedly connected to a worm (543) extending toward the meshing groove. The meshing groove is opened on the outer peripheral surface of the rotating part and is a worm wheel that meshes with the worm (543).

8. The welding device for aluminum profile processing according to claim 1, characterized in that, The positioning component (55) includes multiple support columns (551), each of which is fixedly connected to the side of the fixing part away from the claw (521). The end of each of the multiple support columns (551) away from the claw part (52) is fixedly connected to a support plate (552). The side of the support plate (552) facing the claw (521) is fixedly connected to an electric push rod (553). The output shaft of the electric push rod (553) is coaxially fixedly connected to a push plate (554). The push plate (554) is coplanar with the inner circumferential surface of the support part (51).

9. The welding device for aluminum profile processing according to claim 1, characterized in that, The bottom of the bracket (1) is fixedly connected to a support (8), and a bidirectional screw (9) is rotatably connected inside the support (8). The bidirectional screw (9) passes through the clamp (3) and is threadedly connected to the clamp (3).

10. A welding method for processing aluminum profiles, using the welding apparatus for processing aluminum profiles as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. Place the aluminum tube inside the gripper (52), and then start the cylinder (531). The cylinder (531) contracts synchronously and pulls the support claw (521) through the output shaft. The support claw (521) rotates along the connecting shaft between the support part (51) and the support claw (521), thereby driving multiple clamping plates (522) to approach each other radially along the aluminum tube. S2. Place the aluminum tubes of the desired length between the clamped aluminum tubes and place them on multiple sets of the support rods (7). Clamp the multiple aluminum tubes by retracting the cylinder (531). Then start the electric push rod. The electric push rod (553) outputs and drives the push plate (554) to move along the axial direction of the aluminum tubes, fixing the multiple aluminum tubes along their axial direction. S3. According to the preset aluminum tube segment length, the electric push rod (553) pushes the aluminum tube to make the adjacent end faces of multiple aluminum tubes contact. At the same time, the position of the aluminum tube connection gap relative to the welding head (2) is calculated according to the extension length of the electric push rod (553) and the segment length of the aluminum tube. The aluminum tube connection gap is positioned by the output or retraction of multiple electric push rods (553) and positioned on the upper side of the welding head (2). Then, the motor (542) is started. The output of the motor (542) drives the worm gear (543) to drive. The rotation of the worm gear (543) drives the rotating part to rotate, so that the aluminum tube rotates in the circumferential direction. At the same time, the height of the welding head (2) is adjusted so that its welding end contacts one of the aluminum tube connection gaps. The welding head (2) performs local spot welding on the connection gap in sequence to complete the initial connection of the aluminum tube. S4. Repeat the above preliminary connection operation according to the number of aluminum tubes, and finally connect all aluminum tubes into one aluminum tube. Then, position the multiple welds of the aluminum tubes and the welding head (2) in sequence, and use the steering component (54) to drive the aluminum tube to rotate around the axis and complete the welding with the help of the welding head (2).

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