Aluminum alloy door and window automatic welding device and method thereof

Abstract

This invention relates to the field of automatic welding technology for aluminum alloy doors and windows, specifically to an automatic welding device and method for aluminum alloy doors and windows. The device includes a workbench and aluminum alloy rods mounted on the top of the workbench. A control panel is located on one side of the workbench, and a positioning and clamping mechanism for positioning and clamping the aluminum alloy rods is located on the top of the workbench. A connecting rod, fixedly connected to the middle of a welding stationary table, is connected to the inner wall of the bottom of a lifting platform via bearings. A steering mechanism for rotation control is located inside the lifting platform, and an auxiliary clamping mechanism for welding is located on the top of the lifting platform. A welding mechanism for adjustment and welding is located at one end of the workbench. This device requires no multiple operators; only one person is needed to complete welding and chamfering work. It not only improves product quality and production efficiency, ensuring a high yield rate, but also avoids sharp corners from injuring users, improving user safety.

Description

Technical Field

[0001] This invention relates to the field of automatic welding technology for aluminum alloy doors and windows, specifically to an automatic welding device and method for aluminum alloy doors and windows. Background Technology

[0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, mullions, and sashes. They are also called aluminum doors and windows. Aluminum alloy doors and windows include those with aluminum alloy as the load-bearing members (members that bear and transmit their own weight and loads) as the base material, and those made of wood or plastic composites, also known as aluminum-wood composite doors and windows or aluminum-plastic composite doors and windows. Aluminum alloy doors and windows are usually made by welding multiple sets of members together, or by connecting multiple members into a whole by using corner brackets and bolts.

[0003] Currently, most existing aluminum alloy door and window welding equipment requires at least two workers to hold the aluminum alloy door and window rods for positioning and welding. Moreover, it cannot be formed in one go and requires more than two welding operations. This welding method not only leads to low welding efficiency but also results in inconsistent welding quality, making it impossible to guarantee the yield of finished aluminum alloy doors and windows. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic welding device and method for aluminum alloy doors and windows, addressing the problem mentioned in the background art that most existing aluminum alloy door and window welding devices require at least two workers to manually position and weld the aluminum alloy door and window components. Furthermore, this method cannot achieve a single-pass welding, requiring multiple welding passes. This not only results in low welding efficiency but also leads to inconsistent welding quality, compromising the yield of finished aluminum alloy doors and windows. This solution eliminates the need for multiple operators; only one person is required to complete the welding and chamfering work, reducing the user's workload and intensity. It also ensures consistent positioning for each weld and enables one-pass welding and chamfering. Additionally, it can be adjusted for different sizes of aluminum alloy doors and windows, expanding its applicability and reducing limitations. This not only improves product quality and production efficiency and guarantees a high yield but also prevents sharp corners from injuring users, enhancing user safety.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an automatic welding device and method for aluminum alloy doors and windows, the device comprising a workbench and an aluminum alloy rod disposed at the top of the workbench, a control panel disposed on one side of the workbench, a positioning and clamping mechanism disposed at the top of the workbench for positioning and clamping the aluminum alloy rod, a lifting platform slidably connected to the middle of the workbench, a welding fixing platform rotatably connected to the top of the lifting platform and located on the surface of the workbench, a connecting rod fixedly connected to the middle of the welding fixing platform via a bearing on the inner wall of the bottom end of the lifting platform, a steering mechanism for rotation control disposed inside the lifting platform, an auxiliary clamping mechanism for auxiliary welding disposed at the top of the lifting platform, and a welding mechanism for adjustment and welding disposed at one end of the workbench.

[0006] Preferably, the control terminal of the control panel is electrically connected to an external power source to facilitate automatic operation of the device.

[0007] Preferably, the positioning and clamping mechanism includes an adjusting crossbar. The adjusting crossbar is slidably connected to both ends of the worktable. A rotating groove is formed on one side of the worktable, and a guide hole is formed on the other side. Guide rods, fixedly connected to the adjusting crossbar, are slidably connected to both ends of the guide hole. Threaded sleeves are connected to both ends of the rotating groove via bearings. A first threaded rod, connected to the adjusting crossbar via a bearing, is threaded to one end of each rotating groove. A first dual-axis motor is fixedly connected to the middle of the rotating groove, and the output ends of the first dual-axis motor are fixedly connected to one end of each threaded sleeve. The adjusting crossbars are positioned close to each other. Each side is fixedly connected to a first distance sensor. Both ends of the adjusting crossbar are slidably connected to right-angle slides. A second dual-axis motor is installed in the middle of each adjusting crossbar. The output end of each second dual-axis motor is fixedly connected to a second threaded rod, and one end of each second threaded rod is connected to the adjusting crossbar through a bearing. Each right-angle slide is connected to the second threaded rod through a thread. A second distance sensor is fixedly connected to the side of each right-angle slide that is close to each other. The first threaded rod and the second threaded rod are perpendicular to each other. The top of the welding fixing table and the inner wall of the bottom of the right-angle slide are on the same horizontal plane, which facilitates automatic positioning and clamping.

[0008] Preferably, the control terminals of the first dual-axis motor, the first distance sensor, the second dual-axis motor, and the second distance sensor are all electrically connected to the control panel to facilitate automatic operation of the device.

[0009] Preferably, the steering mechanism includes a worm gear, the lower middle part of the connecting rod is fixedly connected to the worm gear, the top of the connecting rod is fixedly connected to an angle sensor, the inside of the lifting platform is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a worm, and one end of the worm is connected to the inner wall of the lifting platform through a bearing. The angle sensor and the control end of the first motor are both electrically connected to the control panel, which facilitates welding and precise steering of the device.

[0010] Preferably, the auxiliary clamping mechanism includes a sliding groove. The surface of the lifting platform is uniformly provided with sliding grooves. The interior of each sliding groove is slidably connected to a slider fixedly connected to the worktable. The middle of the worktable is provided with a first electric push rod fixedly connected to the lifting platform. The top of the welding fixing platform is provided with symmetrical moving grooves. The interior of each moving groove is slidably connected to an armor plate that fits against the outer wall of the middle part of the aluminum alloy rod. The middle of the welding fixing platform is fixedly connected with two sets of third dual-axis motors. The output ends of each third dual-axis motor are fixedly connected to a third threaded rod, and one end of each third threaded rod is connected to the inner wall of the moving groove through a bearing. The lower middle part of each armor plate is connected to the third threaded rod through a thread. The axial directions of the two sets of third dual-axis motors are perpendicular to each other. The control ends of each third dual-axis motor are electrically connected to the control panel, which facilitates the auxiliary clamping of the device and facilitates subsequent welding work.

[0011] Preferably, the welding mechanism includes an adjusting table. An adjusting table is fixedly connected to one side of the worktable. Inclined moving seats are slidably connected to both ends of the adjusting table. A fourth dual-axis motor is fixedly connected to the middle of the adjusting table. The output end of the fourth dual-axis motor is fixedly connected to a fourth threaded rod that is threadedly connected to the bottom end of the inclined moving seat. The horizontal angle between the inclined moving seat and the aluminum alloy rod is 45 degrees. A second motor is provided at one end of each inclined moving seat. A fifth threaded rod is fixedly connected to the output end of each second motor, and one end of each fifth threaded rod is connected to the inner wall of the inclined moving seat via a bearing. A connecting frame is slidably connected to the top of each inclined moving seat and threadedly connected to the fifth threaded rod. A U-shaped component is fixedly connected to the top of each connecting frame. A fixing block is provided on one side of each U-shaped component. A laser welder is fixedly connected to one end of each fixing block. A chamfering mechanism for chamfering is provided on the other side of each fixing block. A first U-shaped section is formed on one side of each U-shaped component. The U-shaped component has a second U-shaped groove on one side and a second connecting groove on one side that connects to the first U-shaped groove. The inner wall of one side of the first U-shaped groove has a first connecting groove that connects to the second U-shaped groove. A moving block is slidably connected inside the first U-shaped groove. One end of each moving block is fixedly connected to a fixed rod that is slidably connected to the second connecting groove. One end of each fixed rod is fixedly connected to a fixed block. A U-shaped toothed plate is fixedly connected to the inner wall of the second U-shaped groove. A fourth motor is installed at one end of each moving block, and the output end of each fourth motor extends through the first connecting groove into the interior of the second U-shaped groove. The output end of each fourth motor is fixedly connected to a gear that meshes with the U-shaped toothed plate. The two sets of fixed blocks are perpendicular to the center of the worktable. The laser welder and the chamfering head are on the same straight line. The horizontal angle between the laser welder, the chamfering head, and the aluminum alloy rod is 45 degrees, facilitating the automatic and precise double-sided welding operation of this device.

[0012] Preferably, the chamfering mechanism includes a second electric actuator, and the movement of the fixed block is fixedly connected to the second electric actuator. The output end of the second electric actuator is fixedly connected to a third motor, and the output end of the third motor is fixedly connected to a chamfering head. The control ends of the fourth dual-axis motor, the second motor, the laser welder, the second electric actuator, the third motor, and the fourth motor are all electrically connected to the control panel, which facilitates the automatic chamfering operation of the device.

[0013] The operating method of this device is as follows:

[0014] Step 1: First adjustment. First, adjust the distance between the right-angle slides. The first dual-axis motor and the threaded sleeve bring the adjusting crossbar and the right-angle slides closer together through the first threaded rod, thereby controlling the length of the aluminum alloy door and window. At the same time, the second dual-axis motor brings the two sets of right-angle slides closer together through the second threaded rod, thereby controlling the width of the aluminum alloy door and window. The distance between each set of right-angle slides is controlled by the first distance sensor and the second distance sensor.

[0015] Step 2: Second adjustment, then adjust the distance between the armor plates. The third dual-axis motor controls the movement of the armor plates through the third threaded rod to facilitate the placement of aluminum alloy rods and subsequent clamping of aluminum alloy rods, while also ensuring that the aluminum alloy doors and windows are always in the center of the workbench.

[0016] Step 3: Third adjustment. Finally, adjust the distance between the two sets of laser welders. At this time, the output end of the fourth dual-axis motor can make the tilting moving seat, connecting frame, U-shaped part and fixing block move closer to each other through the fourth threaded rod. At this time, the U-shaped part and fixing block move along the axial direction of the fourth threaded rod. At the same time, the second motor can make the U-shaped part and fixing block move along the axial direction of the fifth threaded rod through the fifth threaded rod. Through the horizontal and 45-degree movement, the two sets of laser welders can be positioned on both sides of the width of the aluminum alloy door and window. At this time, the two sets of laser welders are located at the innermost part of the aluminum alloy rod connection.

[0017] Step 4: Positioning and clamping. The user places the aluminum alloy rod on the top of the right-angle slide. The bottom of the aluminum alloy rod is in contact with the top of the first distance sensor and the inner wall of the bottom of the right-angle slide. At this time, the first dual-axis motor and the second dual-axis motor make the four sets of right-angle slides center and move closer to each other, so that the ends of the aluminum alloy rod can be in contact with each other.

[0018] Step 5: Assisted clamping. Two sets of third dual-axis motors and third threaded rods are used to clamp and fix the four sets of aluminum alloy rods with four mounting plates, which facilitates subsequent movement and welding. After the mounting plates clamp and fix the aluminum alloy rods, the four sets of right-angle slides are reset in time by the first and second dual-axis motors, which facilitates the positioning and clamping of the next set of aluminum alloy rods.

[0019] Step Six: Position Adjustment. The output end of the first electric actuator drives the lifting platform, welding fixing platform and aluminum alloy rod to move upward, so that the aluminum alloy rod is in the center position of the two sets of U-shaped parts. Then, the first motor, worm gear and worm wheel make the connecting rod, welding fixing platform and aluminum alloy rod rotate. The rotation angle is controlled by the angle sensor.

[0020] Step 7: Welding. The laser welder can weld the joints of the aluminum alloy rods. The fourth motor, gears, and U-shaped toothed plate enable the moving block to drive the fixed rod, the fixed block, and the laser welder to move. At this time, the laser welder moves along the joint of the aluminum alloy rod, thereby welding the joint. After the top of the aluminum alloy rod is welded, the fourth motor, gears, and U-shaped toothed plate enable the moving block, the fixed block, and the laser welder to rotate 180 degrees, so that the laser welder is at the bottom of the aluminum alloy rod. The fourth motor enables the laser welder at one end of the fixed block to weld the bottom surface of the joint of the aluminum alloy rod, thus completing the welding of both sides of the joint of the aluminum alloy rod in one go.

[0021] Step 8: Chamfering. After welding is completed, the chamfering head is positioned on one side of the corner of the aluminum alloy rod connection by the fourth dual-axis motor. The chamfering head is positioned at the corner of the aluminum alloy rod by the second electric actuator. The chamfering head is driven to rotate at high speed by the third motor and moved by the fourth dual-axis motor, thereby completing the chamfering work on the corner of the aluminum alloy rod.

[0022] Step Nine: After all welding and chamfering are completed, the welding fixing table and aluminum alloy rods are rotated 90 degrees. The welding fixing table and aluminum alloy rods are reset by controlling the first electric actuator. The third dual-axis motor makes the armor plate no longer clamp the aluminum alloy rods. At this time, the user can remove the aluminum alloy rods that have been welded and chamfered, replace them with the next set of aluminum alloy rods, and continue the welding and chamfering work.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The user first sets the parameters of this device according to the product parameters of this batch. First, adjust the distance between the right-angle slides. The first dual-axis motor and the threaded sleeve, through the first threaded rod, bring the two sets of adjusting crossbars closer together, thus bringing the right-angle slides closer together and controlling the length of the aluminum alloy door / window. Simultaneously, the second dual-axis motor, through the second threaded rod, brings the two sets of right-angle slides closer together, thus controlling the width of the aluminum alloy door / window. The distance between each set of right-angle slides is controlled by the first and second distance sensors, ensuring that the distance between each pair of right-angle slides is slightly larger than the required size of the aluminum alloy door / window, facilitating the placement of aluminum alloy rods. Then, adjust the distance between the armor plates. The third dual-axis motor, through the third threaded rod, controls the movement of the armor plates, making the relative... The distance between the armor plates is slightly larger than the required size of the aluminum alloy doors and windows to facilitate the placement and subsequent clamping of the aluminum alloy rods. This also ensures that the aluminum alloy doors and windows remain centered on the workbench, guaranteeing the subsequent welding work. Finally, the distance between the two sets of laser welders is adjusted. At this point, the output of the fourth dual-axis motor, via the fourth threaded rod, allows the tilting moving seat, connecting frame, U-shaped component, and fixing block to move closer together. The U-shaped component and fixing block then move along the axial direction of the fourth threaded rod. Simultaneously, the second motor, via the fifth threaded rod, moves the U-shaped component and fixing block along the axial direction of the fifth threaded rod. Through horizontal and 45-degree movements, the two sets of laser welders are positioned precisely on the aluminum alloy doors and windows. On both sides of the width, the distance between the two sets of laser welders is the width of the aluminum alloy door / window minus twice the thickness of the aluminum alloy rod. The distance between the two sets of laser welders and the center of the workbench is half the length of the aluminum alloy door / window minus the thickness of the aluminum alloy rod. At this point, the two sets of laser welders are located at the innermost part of the aluminum alloy rod connection. After all dimensions are adjusted, the user places the aluminum alloy rod on the top of the right-angle slide. At this point, the bottom end of the aluminum alloy rod is in contact with the top of the first distance sensor and the inner wall of the bottom of the right-angle slide. Then, the first and second dual-axis motors make the four sets of right-angle slides center and move closer to each other, so that the ends of the aluminum alloy rods can be in contact with each other. At this point, the connection seams at the ends of the aluminum alloy rods are all 45 degrees. Then, the two sets of... The three dual-axis motors and the third threaded rod enable the four-plate assembly to clamp and fix the four sets of aluminum alloy rods, facilitating subsequent movement and welding. After the armor plates clamp and fix the aluminum alloy rods, the four sets of right-angle slides are promptly reset via the first and second dual-axis motors, facilitating the positioning and clamping of the next set of aluminum alloy rods. The output end of the first electric actuator drives the lifting platform, welding fixing platform, and aluminum alloy rods to move upward, positioning the aluminum alloy rods at the center position of the two sets of U-shaped parts. Then, the first motor, worm gear, and worm wheel cause the connecting rod, welding fixing platform, and aluminum alloy rods to rotate. The rotation angle is controlled by an angle sensor. When the welding fixing platform and aluminum alloy rods have rotated 90 degrees, they stop rotating.A laser welder can be used to weld the joints of aluminum alloy rods. A fourth motor, gears, and a U-shaped toothed plate enable a moving block to drive a fixed rod, a fixed block, and the laser welder to move. The laser welder moves along the joint of the aluminum alloy rod, thus welding it. After the top of the aluminum alloy rod is welded, the fourth motor, gears, and U-shaped toothed plate cause the moving block, fixed block, and laser welder to rotate 180 degrees, positioning the laser welder at the bottom of the aluminum alloy rod. The fourth motor then drives the laser welder at one end of the fixed block to weld the aluminum alloy rod. Welding is performed on the bottom surface of the rod connection, completing the welding of both sides of the aluminum alloy rod connection in one go. After welding, the fourth dual-axis motor positions the chamfering head on one side of the corner of the aluminum alloy rod connection. The second electric actuator controls the chamfering head to be at the corner of the aluminum alloy rod. The third motor drives the chamfering head to rotate at high speed, and the fourth dual-axis motor controls the movement of the chamfering head, thus completing the chamfering work on the corner of the aluminum alloy rod. This prevents the corner of the aluminum alloy rod from being too sharp and scratching the user, improving user safety. The fully automatic welding and chamfering are performed through a set program, not only... This system ensures the quality of welding and chamfering while reducing user workload and simplifying the welding process, thereby improving production efficiency. After chamfering, the fixing block and chamfering head are reset. The first motor and angle sensor control the welding fixing table and aluminum alloy rod to rotate 180 degrees, and welding and chamfering are then performed on the other side of the aluminum alloy door and window. After welding and chamfering, the welding fixing table and aluminum alloy rod rotate 90 degrees, and the first electric actuator controls the welding fixing table and aluminum alloy rod to reset. The third dual-axis motor causes the armor plate to loosen its clamping of the aluminum alloy rod, at which point the user can complete the welding and chamfering process. The aluminum alloy rods can be removed and replaced with the next set, allowing welding and chamfering to continue. This device requires only one person to operate, reducing the user's workload and intensity. It also ensures consistent positioning for each weld and allows for one-time welding and chamfering. Furthermore, it can be adjusted to accommodate different sizes of aluminum alloy doors and windows, expanding its applicability and reducing limitations. This not only improves product quality and production efficiency and ensures a high yield rate, but also prevents sharp corners from injuring users, enhancing user safety. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0026] Figure 2 This is a three-dimensional cross-sectional view of the positioning and clamping mechanism in this invention;

[0027] Figure 3 This is a three-dimensional cross-sectional view of the auxiliary clamping mechanism in this invention;

[0028] Figure 4 This is a three-dimensional cross-sectional view of the steering mechanism in this invention;

[0029] Figure 5 This is a three-dimensional schematic diagram of the fourth and fifth threaded rods in this invention;

[0030] Figure 6 This is a three-dimensional schematic diagram of the connecting frame and the third motor in this invention;

[0031] Figure 7 This is a three-dimensional cross-sectional view of the first U-shaped groove and the moving block in this invention.

[0032] In the diagram: 1. Workbench; 2. Control panel; 3. Adjusting crossbar; 4. Rotary groove; 5. Threaded sleeve; 6. First dual-axis motor; 7. First threaded rod; 8. Guide hole; 9. Guide rod; 10. First distance sensor; 11. Right-angle slide; 12. Second dual-axis motor; 13. Second threaded rod; 14. Second distance sensor; 15. Aluminum alloy rod; 16. Lifting platform; 17. Slide groove; 18. Slider; 19. First electric actuator; 20. Welding fixing table; 21. Moving groove; 22. Third dual-axis motor; 23. Third threaded rod; 24. Armor plate; 25. Connecting rod; 26. Worm gear 27. First motor; 28. Worm gear; 29. ​​Angle sensor; 30. Adjustment platform; 31. Tilting moving seat; 32. Fourth dual-axis motor; 33. Fourth threaded rod; 34. Second motor; 35. Fifth threaded rod; 36. Connecting frame; 37. U-shaped part; 38. Fixing block; 39. Laser welder; 40. Second electric actuator; 41. Third motor; 42. Beveled head; 43. First U-shaped groove; 44. Second U-shaped groove; 45. First connecting groove; 46. Second connecting groove; 47. Moving block; 48. Fixing rod; 49. U-shaped toothed plate; 50. Fourth motor; 51. Gear. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figures 1-7 One embodiment provided by the present invention:

[0035] An automatic welding device and method for aluminum alloy doors and windows are disclosed. The device includes a workbench 1 and an aluminum alloy rod 15 disposed at the top of the workbench 1. A control panel 2 is disposed on one side of the workbench 1. A positioning and clamping mechanism for positioning and clamping the aluminum alloy rod 15 is disposed at the top of the workbench 1. A lifting platform 16 is slidably connected to the middle of the workbench 1. A welding fixing platform 20 located on the surface of the workbench 1 is rotatably connected to the top of the lifting platform 16. A connecting rod 25 fixedly connected to the middle of the welding fixing platform 20 is connected to the inner wall of the bottom end of the lifting platform 16 through a bearing. A steering mechanism for rotation control is disposed inside the lifting platform 16. An auxiliary clamping mechanism for auxiliary welding is disposed at the top of the lifting platform 16. A welding mechanism for adjustment and welding is disposed at one end of the workbench 1.

[0036] Please see Figure 1 and Figure 2 In this embodiment, the positioning and clamping mechanism includes an adjusting crossbar 3. The adjusting crossbar 3 is slidably connected to both ends of the worktable 1. A rotating groove 4 is provided on one side of the worktable 1, and a guide hole 8 is provided on the other side. Guide rods 9, which are fixedly connected to the adjusting crossbar 3, are slidably connected to both ends of the guide hole 8. Threaded sleeves 5 are connected to both ends of the rotating groove 4 via bearings. A first threaded rod 7, which is connected to the adjusting crossbar 3 via a bearing, is threaded to one end of each rotating groove 4. A first dual-axis motor 6 is fixedly connected to the middle of the rotating groove 4, and the output ends of the first dual-axis motor 6 are fixedly connected to one end of each threaded sleeve 5. The sides of the adjusting crossbar 3 that are close to each other are fixedly connected to... The system includes a first distance sensor 10, right-angle slide blocks 11 slidably connected to both ends of the adjusting crossbar 3, a second dual-axis motor 12 in the middle of the adjusting crossbar 3, a second threaded rod 13 fixedly connected to the output end of the second dual-axis motor 12, and one end of the second threaded rod 13 connected to the adjusting crossbar 3 via a bearing. The right-angle slide blocks 11 are connected to the second threaded rod 13 via threads. A second distance sensor 14 is fixedly connected to the side of the right-angle slide blocks 11 that is close to each other. The first threaded rod 7 and the second threaded rod 13 are perpendicular to each other. The top of the welding fixing table 20 and the inner wall of the bottom of the right-angle slide block 11 are on the same horizontal plane, which facilitates automatic positioning and clamping.

[0037] Please see Figure 3 and Figure 4 In this embodiment, the steering mechanism includes a worm gear 26, the lower middle part of the connecting rod 25 is fixedly connected to the worm gear 26, the top of the connecting rod 25 is fixedly connected to the angle sensor 29, the inside of the lifting platform 16 is fixedly connected to the first motor 27, the output end of the first motor 27 is fixedly connected to the worm 28, and one end of the worm 28 is connected to the inner wall of the lifting platform 16 through a bearing. The control ends of the angle sensor 29 and the first motor 27 are both electrically connected to the control panel 2, which facilitates welding and precise steering of this device.

[0038] Please see Figure 2 and Figure 3 In this embodiment, the auxiliary clamping mechanism includes a slide groove 17. The surface of the lifting platform 16 is uniformly provided with slide grooves 17. The interior of each slide groove 17 is slidably connected to a slider 18 that is fixedly connected to the worktable 1. The middle of the worktable 1 is provided with a first electric push rod 19 that is fixedly connected to the lifting platform 16. The top of the welding fixing platform 20 is provided with symmetrical moving grooves 21. The interior of each moving groove 21 is slidably connected to an armor plate 24 that fits against the outer wall of the middle of the aluminum alloy rod 15. The middle of the welding fixing platform 20 is fixedly connected with two sets of third dual-axis motors 22. The output ends of each third dual-axis motor 22 are fixedly connected to a third threaded rod 23. One end of each third threaded rod 23 is connected to the inner wall of the moving groove 21 through a bearing. The lower middle part of each armor plate 24 is connected to the third threaded rod 23 through threads. The axial directions of the two sets of third dual-axis motors 22 are perpendicular to each other. The control ends of each third dual-axis motor 22 are electrically connected to the control panel 2, which facilitates the auxiliary clamping of this device and facilitates subsequent welding work.

[0039] Please see Figure 1 , Figures 5-7In this embodiment, the welding mechanism includes an adjustment table 30. The adjustment table 30 is fixedly connected to one side of the worktable 1. Inclined moving seats 31 are slidably connected to both ends of the adjustment table 30. A fourth dual-axis motor 32 is fixedly connected to the middle of the adjustment table 30. A fourth threaded rod 33, threaded to the bottom end of the inclined moving seat 31, is fixedly connected to the output end of the fourth dual-axis motor 32 via a thread. The horizontal angle between the inclined moving seat 31 and the aluminum alloy rod 15 is 45 degrees. A second motor 34 is provided at one end of each inclined moving seat 31. A fifth threaded rod 35 is fixedly connected to the output end of each second motor 34, and one end of each fifth threaded rod 35 is connected to the inner wall of the inclined moving seat 31 via a bearing. The top of each inclined moving seat 31 is slidably connected to a connecting frame 36 that is threadedly connected to the fifth threaded rod 35. Each connecting frame 36 has a U-shaped component 37 fixedly connected to its top. A fixing block 38 is provided on one side of each U-shaped component 37, and a laser welder 39 is fixedly connected to one end of each fixing block 38. A chamfering mechanism for chamfering is provided on the other side of each fixing block 38. A first U-shaped groove 43 is formed on one side of each U-shaped component 37, and a second U-shaped groove 44 is formed on the other side. A second connecting groove 46 is formed on one side of each U-shaped component 37 that connects to the first U-shaped groove 43. The inner wall of one side of the first U-shaped groove 43 is formed to connect with the second U-shaped groove 44. The first connecting groove 45 and the first U-shaped groove 43 are both slidably connected to moving blocks 47. One end of each moving block 47 is fixedly connected to a fixing rod 48 that is slidably connected to the second connecting groove 46. One end of each fixing rod 48 is fixedly connected to a fixing block 38. The inner wall of the second U-shaped groove 44 is fixedly connected to a U-shaped toothed plate 49. One end of each moving block 47 is provided with a fourth motor 50, and the output end of each fourth motor 50 extends through the first connecting groove 45 into the interior of the second U-shaped groove 44. The output end of each fourth motor 50 is fixedly connected to a gear 51 that meshes with the U-shaped toothed plate 49. The two sets of fixing blocks 38 are perpendicular to each other with respect to the center of the worktable 1. The laser welder 39 and The chamfering head 42 is on the same straight line. The horizontal angle between the laser welder 39, the chamfering head 42, and the aluminum alloy rod 15 is 45 degrees, which facilitates the automatic and precise double-sided welding work of this device. The chamfering mechanism includes a second electric push rod 40. The movement of the fixed block 38 is fixedly connected to the second electric push rod 40. The output end of the second electric push rod 40 is fixedly connected to the third motor 41. The output end of the third motor 41 is fixedly connected to the chamfering head 42. The control ends of the fourth dual-axis motor 32, the second motor 34, the laser welder 39, the second electric push rod 40, the third motor 41, and the fourth motor 50 are all electrically connected to the control panel 2, which facilitates the automatic chamfering work of this device.

[0040] It should be noted that the control terminal of the control panel 2 is electrically connected to an external power source to facilitate the automatic operation of this device. The control terminals of the first dual-axis motor 6, the first distance sensor 10, the second dual-axis motor 12, and the second distance sensor 14 are all electrically connected to the control panel 2 to facilitate the automatic operation of this device.

[0041] The device operates as follows:

[0042] Step 1: First adjustment. First, adjust the distance between the right-angle slide blocks 11. The first dual-axis motor 6 and the threaded sleeve 5 bring the adjusting crossbar 3 and the right-angle slide blocks 11 closer together through the first threaded rod 7, thereby controlling the length of the aluminum alloy door and window. At the same time, the second dual-axis motor 12 brings the two sets of right-angle slide blocks 11 closer together through the second threaded rod 13, thereby controlling the width of the aluminum alloy door and window. The distance between each set of right-angle slide blocks 11 is controlled by the first distance sensor 10 and the second distance sensor 14.

[0043] Step 2: Second adjustment, then adjust the distance between the armor plates 24. The third dual-axis motor 22 controls the movement of the armor plates 24 through the third threaded rod 23 to facilitate the placement of aluminum alloy rods 15 and subsequent clamping of aluminum alloy rods 15, while also ensuring that the aluminum alloy doors and windows are always in the center of the workbench 1.

[0044] Step 3: Third adjustment. Finally, adjust the distance between the two sets of laser welders 39. At this time, the output end of the fourth dual-axis motor 32 can make the tilting moving seat 31, connecting frame 36, U-shaped part 37 and fixing block 38 move closer to each other through the fourth threaded rod 33. At this time, the U-shaped part 37 and fixing block 38 move along the axial direction of the fourth threaded rod 33. At the same time, the second motor 34 can make the U-shaped part 37 and fixing block 38 move along the axial direction of the fifth threaded rod 35 through the fifth threaded rod 35. Through the horizontal and 45-degree movement, the two sets of laser welders 39 can be positioned on both sides of the width of the aluminum alloy door and window. At this time, the two sets of laser welders 39 are located at the innermost part of the connection of the aluminum alloy rod 15.

[0045] Step 4: Positioning and clamping. The user places the aluminum alloy rod 15 into the top of the right-angle slide 11. The bottom end of the aluminum alloy rod 15 is in contact with the top end of the first distance sensor 10 and the inner wall of the bottom end of the right-angle slide 11. At this time, the first dual-axis motor 6 and the second dual-axis motor 12 make the four sets of right-angle slides 11 centered and close to each other, so that the ends of the aluminum alloy rod 15 can be in contact with each other.

[0046] Step 5: Assisted clamping. The four sets of mounting plates 24 clamp and fix the four sets of aluminum alloy rods 15 through two sets of third dual-axis motors 22 and third threaded rods 23, which facilitates subsequent movement and welding. After the mounting plates 24 clamp and fix the aluminum alloy rods 15, the four sets of right-angle slides 11 are promptly reset by the first dual-axis motor 6 and the second dual-axis motor 12, which facilitates the positioning and clamping of the next set of aluminum alloy rods 15.

[0047] Step Six: Position Adjustment. The output end of the first electric actuator 19 drives the lifting platform 16, welding fixing platform 20 and aluminum alloy rod 15 to move upward, so that the aluminum alloy rod 15 is in the center position of the two sets of U-shaped parts 37. Then, the first motor 27, worm gear 28 and worm wheel 26 cause the connecting rod 25, welding fixing platform 20 and aluminum alloy rod 15 to rotate. The rotation angle is controlled by the angle sensor 29.

[0048] Step 7: Welding. The laser welder 39 can weld the connection of the aluminum alloy rod 15. The fourth motor 50, gear 51 and U-shaped toothed plate 49 can make the moving block 47 drive the fixed rod 48, fixed block 38 and laser welder 39 to move. At this time, the laser welder 39 moves along the connection of the aluminum alloy rod 15, so as to weld the connection of the aluminum alloy rod 15. After the top of the aluminum alloy rod 15 is welded, the fourth motor 50, gear 51 and U-shaped toothed plate 49 make the moving block 47, fixed block 38 and laser welder 39 rotate 180 degrees, so that the laser welder 39 is at the bottom of the aluminum alloy rod 15. The fourth motor 50 makes the laser welder 39 at one end of the fixed block 38 weld the bottom surface of the connection of the aluminum alloy rod 15, thus completing the welding of both sides of the connection of the aluminum alloy rod 15 in one go.

[0049] Step 8: Chamfering. After welding, the chamfering head 42 is positioned on one side of the corner of the aluminum alloy rod 15 by the fourth dual-axis motor 32. The chamfering head 42 is positioned at the corner of the aluminum alloy rod 15 by the second electric actuator 40. The chamfering head 42 is driven to rotate at high speed by the third motor 41. The chamfering head 42 is moved by the fourth dual-axis motor 32, thereby completing the chamfering work on the corner of the aluminum alloy rod 15.

[0050] Step Nine: After all welding and chamfering are completed, the welding fixing table 20 and aluminum alloy rod 15 are rotated 90 degrees. The welding fixing table 20 and aluminum alloy rod 15 are reset by the first electric push rod 19. The third dual-axis motor 22 causes the armor plate 24 to stop clamping the aluminum alloy rod 15. At this time, the user can remove the aluminum alloy rod 15 after welding and chamfering, replace it with the next set of aluminum alloy rods 15, and continue to perform welding and chamfering work.

[0051] The user first sets the parameters of this device according to the product parameters of this batch. First, adjust the distance between the right-angle slide blocks 11. The output end of the first dual-axis motor 6 drives the threaded sleeve 5 to rotate. The rotation of the threaded sleeve 5 shortens the first threaded rod 7, causing the two sets of adjusting crossbars 3 to move closer together. Simultaneously, adjusting the crossbars 3 causes the guide rod 9 to slide inside the guide hole 8, thus achieving guiding operation. The moving crossbars 3 bring the right-angle slide blocks 11 closer together, thereby controlling the length of the aluminum alloy doors and windows. At the same time, the output end of the second dual-axis motor 12 drives the second threaded rod 13 to rotate. The rotation of the second threaded rod 13 brings the two sets of right-angle slide blocks 11 closer together, thereby controlling the width of the aluminum alloy doors and windows. The distance between the first and second sets of right-angle slide blocks 11 is adjusted. The distance sensor 10 and the second distance sensor 14 control the distance between each set of right-angle slide blocks 11, ensuring that the distance between any two sets of right-angle slide blocks 11 is slightly larger than the required size of the aluminum alloy door / window, facilitating the placement of the aluminum alloy rods 15. Then, the distance between the armor plates 24 is adjusted. The output of the third dual-axis motor 22 drives the third threaded rod 23 to rotate. The rotating third threaded rod 23 controls the movement of the armor plates 24, ensuring that the distance between them is also slightly larger than the required size of the aluminum alloy door / window, facilitating the placement and subsequent clamping of the aluminum alloy rods 15. This also ensures that the aluminum alloy door / window remains centered on the workbench 1, guaranteeing subsequent welding work. Finally, the distance between the two sets of... The distance between the laser welders 39 is such that the output of the fourth dual-axis motor 32 drives the fourth threaded rod 33 to rotate. The fourth threaded rod 33 allows the tilting moving seat 31, connecting frame 36, U-shaped part 37, and fixing block 38 to move closer together. At this time, the U-shaped part 37 and fixing block 38 move along the axial direction of the fourth threaded rod 33. Simultaneously, the output of the second motor 34 drives the fifth threaded rod 35 to rotate. The rotating fifth threaded rod 35 causes the U-shaped part 37 and fixing block 38 to move along the axial direction of the fifth threaded rod 35. Through horizontal and 45-degree movements, the two sets of laser welders 39 are positioned on either side of the width of the aluminum alloy door / window. The distance between the two sets of laser welders 39 is the distance between the aluminum alloy door / window. The window width is reduced by twice the thickness of the aluminum alloy rod 15. The distance between the two sets of laser welders 39 and the center of the worktable 1 is half the length of the aluminum alloy door / window minus the thickness of the aluminum alloy rod 15. At this point, the two sets of laser welders 39 are located at the innermost part of the connection of the aluminum alloy rod 15. After all dimensions are adjusted, the user places the aluminum alloy rod 15 on the top of the right-angle slide 11. At this point, the bottom end of the aluminum alloy rod 15 is in contact with the top of the first distance sensor 10 and the inner wall of the bottom end of the right-angle slide 11. Then, the first dual-axis motor 6 and the second dual-axis motor 12 make the four sets of right-angle slides 11 centered and close to each other, so that the ends of the aluminum alloy rod 15 can be in contact with each other. At this point, the connection seams at the ends of the aluminum alloy rod 15 are all 45 degrees.Then, the four sets of aluminum alloy rods 15 are clamped and fixed by the four sets of armor plates 24 through the two sets of third dual-axis motors 22 and the third threaded rods 23, facilitating subsequent movement and welding. After the armor plates 24 clamp and fix the aluminum alloy rods 15, the four sets of right-angle slides 11 are promptly reset by the first dual-axis motor 6 and the second dual-axis motor 12, facilitating the positioning and clamping of the next set of aluminum alloy rods 15. The output end of the first electric push rod 19 drives the lifting platform 16, the welding fixing platform 20, and the aluminum alloy rods 15 to move upward, so that the aluminum alloy rods 15 are in the center position of the two sets of U-shaped parts 37. Then, the output end of the first motor 27 drives the worm gear 28 to rotate, and the rotating worm gear 28 drives the worm wheel 26 to rotate, and the worm wheel 26 drives the connecting rod 25. The connecting rod 25 rotates, causing the welding fixing table 20 and the aluminum alloy rod 15 to rotate. The rotation angle is controlled by the angle sensor 29. When the welding fixing table 20 and the aluminum alloy rod 15 rotate 90 degrees, they stop rotating. The laser welder 39 can then weld the joint of the aluminum alloy rod 15. The output end of the fourth motor 50 drives the gear 51 to rotate. At this time, the U-shaped toothed plate 49 allows the moving block 47 to slide inside the first U-shaped groove 43. The moving block 47 drives the fixing rod 48, the fixing block 38, and the laser welder 39 to move. The laser welder 39 moves along the joint of the aluminum alloy rod 15, thereby connecting the aluminum alloy rod 15. Welding is performed at the top of the aluminum alloy rod 15. After the top of the aluminum alloy rod 15 is welded, the fourth motor 50, gear 51, and U-shaped toothed plate 49 rotate the moving block 47, fixed block 38, and laser welder 39 180 degrees, positioning the laser welder 39 at the bottom of the aluminum alloy rod 15. The fourth motor 50 then uses the laser welder 39 at one end of the fixed block 38 to weld the bottom surface of the connection point of the aluminum alloy rod 15, thus completing the welding of both sides of the connection point of the aluminum alloy rod 15 in one go. After welding, the fourth dual-axis motor 32 positions the chamfered head 42 at one corner of the connection point of the aluminum alloy rod 15. The second electric actuator 40 controls the chamfered head 42 to be positioned at the corner of the aluminum alloy rod 15. The third motor 41... The high-speed rotation of the chamfering head 42, controlled by the fourth dual-axis motor 32, moves the chamfering head 42 to complete the chamfering of the corners of the aluminum alloy rod 15. This prevents the corners of the aluminum alloy rod 15 from being too sharp and scratching the user, improving user safety. The fully automatic welding and chamfering process, programmed according to a set sequence, not only ensures the quality of welding and chamfering but also reduces the user's workload and shortens the welding process, thereby improving production efficiency. After chamfering is complete, the fixing block 38 and the chamfering head 42 reset. The first motor 27 and the angle sensor 29 control the welding fixing table 20 and the aluminum alloy rod 15 to rotate 180 degrees, and then weld and chamfer the other side of the aluminum alloy door / window again. After welding and chamfering are complete...After the welding fixing table 20 and the aluminum alloy rod 15 rotate 90 degrees, the first electric actuator 19 controls the welding fixing table 20 and the aluminum alloy rod 15 to reset. The third dual-axis motor 22 then causes the armor plate 24 to stop clamping the aluminum alloy rod 15. At this point, the user can remove the welded and chamfered aluminum alloy rod 15, replace it with the next set of aluminum alloy rods 15, and continue welding and chamfering. This device requires no multiple operators; only one person is needed to complete the welding and chamfering work, reducing the user's workload and intensity. It also ensures consistent positioning for each weld and allows for one-time welding and chamfering. Furthermore, it can be adjusted for different sizes of aluminum alloy doors and windows, expanding its application range and reducing its limitations. This not only improves product quality and production efficiency and ensures a high yield rate but also prevents sharp corners from scratching users, improving user safety.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automatic welding device for aluminum alloy doors and windows, comprising a workbench (1) and an aluminum alloy rod (15) disposed on the top of the workbench (1), characterized in that, A control panel (2) is provided on one side of the workbench (1). A positioning and clamping mechanism for positioning and clamping aluminum alloy rods (15) is provided at the top of the workbench (1). A lifting platform (16) is slidably connected to the middle of the workbench (1). A welding fixing platform (20) located on the surface of the workbench (1) is rotatably connected to the top of the lifting platform (16). A connecting rod (25) fixedly connected to the middle of the welding fixing platform (20) is connected to the inner wall of the bottom end of the lifting platform (16) through a bearing. A steering mechanism for rotation control is provided inside the lifting platform (16). An auxiliary clamping mechanism for auxiliary welding is provided at the top of the lifting platform (16). A welding mechanism for adjustment and welding is provided at one end of the workbench (1). The positioning and clamping mechanism includes an adjusting crossbar (3), both ends of the worktable (1) are slidably connected to the adjusting crossbar (3), both ends of the adjusting crossbar (3) are slidably connected to right-angle slide blocks (11), the middle of the adjusting crossbar (3) is provided with a second dual-axis motor (12), the output end of the second dual-axis motor (12) is fixedly connected to a second threaded rod (13), the right-angle slide blocks (11) are all connected to the second threaded rod (13) by threads, and the sides of the right-angle slide blocks (11) that are close to each other are fixedly connected to a second distance sensor (14). The steering mechanism includes a worm gear (26), the lower middle part of the connecting rod (25) is fixedly connected to the worm gear (26), the top of the connecting rod (25) is fixedly connected to an angle sensor (29), the inside of the lifting platform (16) is fixedly connected to a first motor (27), and the output end of the first motor (27) is fixedly connected to a worm (28). The auxiliary clamping mechanism includes a slide groove (17), the surface of the lifting platform (16) is uniformly provided with slide grooves (17), the middle part of the worktable (1) is provided with a first electric push rod (19) fixedly connected to the lifting platform (16), the top of the welding fixing platform (20) is provided with a symmetrical moving groove (21), and the interior of the moving groove (21) is slidably connected with an armor plate (24) that fits against the outer wall of the middle part of the aluminum alloy rod (15). The welding mechanism includes an adjustment table (30). The adjustment table (30) is fixedly connected to one side of the workbench (1). Inclined moving seats (31) are slidably connected to both ends of the adjustment table (30). A second motor (34) is installed at one end of each inclined moving seat (31). A fifth threaded rod (35) is fixedly connected to the output end of each second motor (34). A connecting frame (36) is slidably connected to the top of each inclined moving seat (31) and threadedly connected to the fifth threaded rod (35). A U-shaped U-shaped piece (37) is fixedly connected to the top of each connecting frame (36). A fixing block (38) is provided on one side of each U-shaped part (37). A laser welder (39) is fixedly connected to one end of each fixing block (38). A chamfering mechanism for chamfering is provided on the other side of each fixing block (38). A first U-shaped groove (43) is opened on one side of each U-shaped part (37). A moving block (47) is slidably connected inside the first U-shaped groove (43). A fixing rod (48) that is slidably connected to a second connecting groove (46) is fixedly connected to one end of each moving block (47). One end of each fixing rod (48) is fixedly connected to the fixing block (38). The chamfering mechanism includes a second electric push rod (40), one end of each fixed block (38) is fixedly connected to the second electric push rod (40), the output end of each second electric push rod (40) is fixedly connected to a third motor (41), and the output end of each third motor (41) is fixedly connected to a chamfering milling head (42).

2. The automatic welding device for aluminum alloy doors and windows according to claim 1, characterized in that: The control terminal of the control panel (2) is electrically connected to an external power source.

3. The automatic welding device for aluminum alloy doors and windows according to claim 2, characterized in that: The positioning and clamping mechanism also includes a rotating groove (4). A rotating groove (4) is provided on one side of the worktable (1), and a guide hole (8) is provided on the other side of the worktable (1). Both ends of the guide hole (8) are slidably connected to guide rods (9) that are fixedly connected to the adjusting crossbar (3). Both ends of the rotating groove (4) are connected to threaded sleeves (5) through bearings. One end of the rotating groove (4) is connected to a first threaded rod (7) that is connected to the adjusting crossbar (3) through a bearing through a threaded connection. A first dual-axis motor (6) is fixedly connected to the middle of the rotating groove (4), and the output end of the first dual-axis motor (6) is fixedly connected to one end of the threaded sleeve (5). A first distance sensor (10) is fixedly connected to the side of the adjusting crossbar (3) that is close to each other. One end of the second threaded rod (13) is connected to the adjusting crossbar (3) through a bearing. The first threaded rod (7) and the second threaded rod (13) are perpendicular to each other. The top of the welding fixing table (20) and the inner wall of the bottom of the right-angle slide (11) are on the same horizontal plane.

4. The automatic welding device for aluminum alloy doors and windows according to claim 3, characterized in that: The control terminals of the first dual-axis motor (6), the first distance sensor (10), the second dual-axis motor (12), and the second distance sensor (14) are all electrically connected to the control panel (2).

5. The automatic welding device for aluminum alloy doors and windows according to claim 4, characterized in that: One end of the worm gear (28) is connected to the inner wall of the lifting platform (16) via a bearing, and the control ends of the angle sensor (29) and the first motor (27) are both electrically connected to the control panel (2).

6. The automatic welding device for aluminum alloy doors and windows according to claim 5, characterized in that: The auxiliary clamping mechanism also includes a slider (18). The inside of the slide groove (17) is slidably connected to the slider (18) which is fixedly connected to the worktable (1). The middle part of the welding fixed table (20) is fixedly connected to two sets of third dual-axis motors (22). The output end of each of the third dual-axis motors (22) is fixedly connected to a third threaded rod (23). One end of each third threaded rod (23) is connected to the inner wall of the moving groove (21) through a bearing. The lower middle part of the armor plate (24) is connected to the third threaded rod (23) through a thread. The axial directions of the two sets of third dual-axis motors (22) are perpendicular to each other. The control end of each third dual-axis motor (22) is electrically connected to the control panel (2).

7. The automatic welding device for aluminum alloy doors and windows according to claim 6, characterized in that: The welding mechanism also includes a fourth dual-axis motor (32). The fourth dual-axis motor (32) is fixedly connected to the middle of the adjustment table (30). The output end of the fourth dual-axis motor (32) is fixedly connected to a fourth threaded rod (33) that is threaded to the bottom end of the tilting moving seat (31). The horizontal angle between the tilting moving seat (31) and the aluminum alloy rod (15) is 45 degrees. One end of the fifth threaded rod (35) is connected to the inner wall of the tilting moving seat (31) through a bearing. A second U-shaped groove (44) is opened on the other side of the U-shaped part (37). A second connecting groove (46) connected to the first U-shaped groove (43) is opened on one side of the U-shaped part (37). The inner wall of one side of the first U-shaped groove (43) is opened with a connecting groove (46) connected to the first U-shaped groove (43). The first connecting groove (45) is connected to the second U-shaped groove (44). The inner wall of the second U-shaped groove (44) is fixedly connected with a U-shaped toothed plate (49). One end of each of the moving blocks (47) is provided with a fourth motor (50). The output end of the fourth motor (50) extends through the first connecting groove (45) into the interior of the second U-shaped groove (44). The output end of the fourth motor (50) is fixedly connected with a gear (51) that meshes with the U-shaped toothed plate (49). The two sets of fixed blocks (38) are perpendicular to each other with respect to the center of the worktable (1). The laser welder (39) and the chamfering milling head (42) are on the same straight line. The horizontal angle between the laser welder (39) and the chamfering milling head (42) and the aluminum alloy rod (15) is 45 degrees.

8. The automatic welding device for aluminum alloy doors and windows according to claim 7, characterized in that: The control terminals of the fourth dual-axis motor (32), the second motor (34), the laser welder (39), the second electric push rod (40), the third motor (41), and the fourth motor (50) are all electrically connected to the control panel (2).

9. A method for operating the automatic welding device for aluminum alloy doors and windows as described in claim 8, characterized in that: Step 1: First adjustment. First, adjust the distance between the right-angle slides (11). The first dual-axis motor (6) and the threaded sleeve (5) make the adjusting crossbar (3) and the right-angle slides (11) move closer to each other through the first threaded rod (7), thereby controlling the length of the aluminum alloy door and window. At the same time, the second dual-axis motor (12) makes the two sets of right-angle slides (11) move closer to each other through the second threaded rod (13), thereby controlling the width of the aluminum alloy door and window. The distance between each set of right-angle slides (11) is controlled by the first distance sensor (10) and the second distance sensor (14). Step 2: Second adjustment, then adjust the distance between the armor plates (24). The third dual-axis motor (22) controls the movement of the armor plates (24) through the third threaded rod (23) to facilitate the placement of aluminum alloy rods (15) and subsequent clamping of aluminum alloy rods (15), while also ensuring that the aluminum alloy doors and windows are always in the center of the workbench (1). Step 3: Third adjustment. Finally, adjust the distance between the two sets of laser welders (39). At this time, the output end of the fourth dual-axis motor (32) can make the tilting moving seat (31), connecting frame (36), U-shaped part (37) and fixing block (38) move closer to each other through the fourth threaded rod (33). At this time, the U-shaped part (37) and fixing block (38) move along the axial direction of the fourth threaded rod (33). At the same time, the second motor (34) makes the U-shaped part (37) and fixing block (38) move along the axial direction of the fifth threaded rod (35) through the fifth threaded rod (35). Through the horizontal and 45-degree movement, the two sets of laser welders (39) can be positioned on both sides of the width of the aluminum alloy door and window. At this time, the two sets of laser welders (39) are positioned at the innermost part of the connection of the aluminum alloy rod (15). Step 4: Positioning and clamping. The user places the aluminum alloy rod (15) into the top of the right-angle slide (11). The bottom end of the aluminum alloy rod (15) is in contact with the top end of the first distance sensor (10) and the inner wall of the bottom end of the right-angle slide (11). At this time, the first dual-axis motor (6) and the second dual-axis motor (12) make the four sets of right-angle slides (11) close to each other in the center, so that the ends of the aluminum alloy rod (15) can be in contact with each other. Step 5: Assisted clamping. The four mounting plates (24) clamp and fix the four aluminum alloy rods (15) through two sets of third dual-axis motors (22) and third threaded rods (23), which facilitates subsequent movement and welding. After the mounting plates (24) clamp and fix the aluminum alloy rods (15), the four right-angle slides (11) are promptly reset by the first dual-axis motor (6) and the second dual-axis motor (12), which facilitates the positioning and clamping of the next set of aluminum alloy rods (15). Step 6: Position adjustment. The output end of the first electric actuator (19) drives the lifting platform (16), welding fixing platform (20) and aluminum alloy rod (15) to move upward, so that the aluminum alloy rod (15) is in the center position of the two sets of U-shaped parts (37). Then, the connecting rod (25), welding fixing platform (20) and aluminum alloy rod (15) are rotated by the first motor (27), worm (28) and worm wheel (26). The rotation angle is controlled by the angle sensor (29). Step 7: Welding. The connection of the aluminum alloy rod (15) can be welded using a laser welder (39). The fourth motor (50), gear (51), and U-shaped toothed plate (49) enable the moving block (47) to drive the fixed rod (48), the fixed block (38), and the laser welder (39) to move. At this time, the laser welder (39) moves along the connection of the aluminum alloy rod (15), thereby welding the connection of the aluminum alloy rod (15). When the top of the aluminum alloy rod (15) is welded... After the connection is completed, the fourth motor (50), gear (51) and U-shaped toothed plate (49) cause the moving block (47), fixed block (38) and laser welder (39) to rotate 180 degrees, so that the laser welder (39) is at the bottom of the aluminum alloy rod (15). The fourth motor (50) causes the laser welder (39) at one end of the fixed block (38) to weld the bottom surface of the connection of the aluminum alloy rod (15), thereby completing the welding of both sides of the connection of the aluminum alloy rod (15) in one go. Step 8: Chamfering. After welding, the chamfering milling head (42) is positioned on one side of the corner of the aluminum alloy rod (15) by the fourth dual-axis motor (32). The chamfering milling head (42) is positioned at the corner of the aluminum alloy rod (15) by the second electric push rod (40). The chamfering milling head (42) is driven to rotate at high speed by the third motor (41). The chamfering milling head (42) is moved by the fourth dual-axis motor (32) to complete the chamfering work on the corner of the aluminum alloy rod (15). Step 9: After all welding and chamfering are completed, the welding fixing table (20) and aluminum alloy rod (15) are rotated 90 degrees. The welding fixing table (20) and aluminum alloy rod (15) are reset by the first electric push rod (19). The third dual-axis motor (22) makes the armor plate (24) no longer clamp the aluminum alloy rod (15). At this time, the user can remove the aluminum alloy rod (15) after welding and chamfering, replace the next set of aluminum alloy rods (15), and continue to carry out welding and chamfering work.

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