Automatic welding device and method for aluminum alloy doors and windows

Abstract

The invention relates to the technical field of aluminum alloy door and window automatic welding, in particular to an aluminum alloy door and window automatic welding device and a method thereof.The device comprises a workbench and an aluminum alloy rod piece arranged at the top end of the workbench, and a control panel is arranged on one side of the workbench; a positioning and clamping mechanism used for positioning and clamping an aluminum alloy rod piece is arranged at the top end of the workbench, the inner wall of the bottom end of the lifting table is connected with a connecting rod fixedly connected with the middle of the welding fixing table through a bearing, and a steering mechanism used for rotation control is arranged in the lifting table. An auxiliary clamping mechanism for assisting welding is arranged at the top end of the lifting table, and a welding mechanism used for adjusting and welding is arranged at one end of the workbench. The device does not need to be operated by multiple persons, welding and chamfering work can be completed by only one person, the product quality and the production efficiency can be improved, the product yield is guaranteed, meanwhile, sharp corners can be prevented from scratching a user, and the use safety of the user is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic welding of aluminum alloy doors and windows, and in particular to an automatic welding device and method for aluminum alloy doors and windows. Background Art

[0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, stiles and sashes. They are called aluminum alloy doors and windows, or simply aluminum doors and windows. Aluminum alloy doors and windows include doors and windows with aluminum alloy as the base material for load-bearing rods (rods that bear and transmit deadweight and loads) and doors and windows composited with wood or plastic, or aluminum-wood composite doors and windows, or aluminum-plastic composite doors and windows. Aluminum alloy doors and windows are usually made by welding multiple groups of rods together, or connecting multiple rods into a whole through angle pieces and bolts. At present, most of the existing aluminum alloy door and window welding devices require at least two workers to hold the rods of the aluminum alloy doors and windows for positioning and welding. Moreover, they cannot be formed in one go and require more than two welding times. Welding in this way not only leads to low welding efficiency, but also leads to uneven welding quality, and the yield of aluminum alloy doors and windows cannot be guaranteed. Summary of the Invention

[0003] The object of the present invention is to provide an automatic welding device and method for aluminum alloy doors and windows, so as to solve the problem that most of the currently existing aluminum alloy door and window welding devices proposed in the above background technology are to position and weld by at least two workers holding the rods of the aluminum alloy doors and windows, and cannot be formed in one go, and more than two weldings are required. Welding in this way not only leads to low welding efficiency, but also leads to uneven welding quality, and the problem that the yield of aluminum alloy doors and windows cannot be guaranteed. Through this solution, there is no need for multiple people to operate, and only one person is needed to complete the welding and chamfering work, which reduces the user's work intensity and workload, and can also ensure that the positioning of each welding is the same, and can weld and chamfer in one go. At the same time, it can also be adjusted according to aluminum alloy doors and windows of different sizes, thereby increasing its scope of use and reducing its limitations. It can not only improve product quality and production efficiency, and ensure product yield, but also avoid sharp corners from scratching users, thereby improving user safety.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an automatic welding device for aluminum alloy doors and windows and a method thereof, the device comprising a workbench and an aluminum alloy rod arranged at the top of the workbench, a control panel being provided on one side of the workbench, a positioning and clamping mechanism being provided at the top of the workbench for positioning and clamping the aluminum alloy rod, a lifting platform being slidably connected to the middle part of the workbench, a welding fixing platform being rotatably connected to the top of the lifting platform on the surface of the workbench, a connecting rod being fixedly connected to the middle part 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 being provided inside the lifting platform, an auxiliary clamping mechanism for auxiliary welding being provided at the top of the lifting platform, and a welding mechanism for adjustment and welding being provided at one end of the workbench.

[0005] Preferably, the control end of the control panel is electrically connected to an external power supply to facilitate automatic operation of the device.

[0006] Preferably, the positioning clamping mechanism includes an adjusting cross bar, both ends of the workbench are slidably connected to the adjusting cross bar, a rotation groove is provided on one side of the workbench, and a guide hole is provided on the other side of the workbench, both ends of the guide hole are slidably connected to a guide rod fixedly connected to the adjusting cross bar, both ends of the rotation groove are connected to a threaded sleeve through a bearing, one end of the rotation groove is respectively connected to a first threaded rod connected to the adjusting cross bar through a bearing through a thread, the middle of the rotation groove is fixedly connected to a first dual-axis motor, and the output ends of the first dual-axis motor are respectively fixedly connected to one end of the threaded sleeve, and the adjusting cross bars are close to each other. The sides are fixedly connected with a first distance sensor, both ends of the adjusting cross bar are slidably connected with a right-angle slide, the middle part of the adjusting cross bar is provided with a second dual-axis motor, the output ends of the second dual-axis motor are fixedly connected with a second threaded rod, and one end of the second threaded rod is connected to the adjusting cross bar through a bearing, the right-angle slides are connected to the second threaded rod through threads, and the sides of the right-angle slides that are close to each other are fixedly connected with a second distance sensor, the first threaded rod and the second threaded rod are perpendicular to each other, and the top of the welding fixing table and the inner wall of the bottom end of the right-angle slide are in the same horizontal plane, which is convenient for automatic positioning and clamping.

[0007] Preferably, the control ends 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, so as to facilitate the automatic operation of the device.

[0008] Preferably, the steering mechanism includes a worm gear, a worm gear is fixedly connected to the middle and lower part of the connecting rod, an angle sensor is fixedly connected to the top of the connecting rod, a first motor is fixedly connected to the inside of the lifting platform, a worm is fixedly connected to the output end of the first motor, 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, so as to facilitate the welding and precise steering work of the device.

[0009] Preferably, the auxiliary clamping mechanism includes a slide groove, the surface of the lifting platform is evenly provided with slide grooves, the interior of the slide grooves are all slidably connected to a slider fixedly connected to the workbench, the middle of the workbench is provided with a first electric push rod fixedly connected to the lifting platform, the top of the welding fixing platform is provided with a symmetrical moving groove, the interior of the moving grooves are all slidably connected to an armor plate that fits the outer wall of the middle of the aluminum alloy rod, the middle of the welding fixing platform is fixedly connected to two groups of third dual-axis motors, the output ends of the third dual-axis motors are all fixedly connected to a third threaded rod, and one end of the third threaded rod is connected to the inner wall of the moving groove through a bearing, the middle and lower parts of the armor plate are connected to the third threaded rod through threads, the axial directions of the two groups of the third dual-axis motors are perpendicular to each other, and the control ends of the third dual-axis motors are all electrically connected to the control panel, which is convenient for the device to perform auxiliary clamping and subsequent welding work.

[0010] Preferably, the welding mechanism includes an adjusting table, one side of the workbench is fixedly connected with an adjusting table, both ends of the adjusting table are slidably connected with inclined moving seats, the middle part of the adjusting table is fixedly connected with a fourth double shaft motor, the output end of the fourth double shaft motor is fixedly connected with a fourth threaded rod connected with the bottom end of the inclined moving seat through threads, the horizontal included angle between the inclined moving seat and the aluminum alloy rod is forty-five degrees, one end of the inclined moving seat is provided with a second motor, the output end of the second motor is fixedly connected with a fifth threaded rod, and one end of the fifth threaded rod is connected with the inner wall of the inclined moving seat through a bearing, the top end of the inclined moving seat is slidably connected with a connecting frame connected with the fifth threaded rod through threads, the top end of the connecting frame is fixedly connected with a U-shaped U-shaped piece, one side of the U-shaped piece is provided with a fixed block, one end of the fixed block is fixedly connected with a laser welder, the other side of the fixed block is provided with a chamfering mechanism for chamfering, one side of the U-shaped piece is provided with a first U-shaped groove, the other side of the U-shaped piece is provided with a second U-shaped groove, one side of the U-shaped piece is provided with a second connecting groove connected with the first U-shaped groove, the inner wall of one side of the first U-shaped groove is provided with a first connecting groove connected with the second U-shaped groove, the inside of the first U-shaped groove is slidably connected with a moving block, one end of the moving block is fixedly connected with a fixed rod slidably connected with the second connecting groove, one end of the fixed rod is fixedly connected with the fixed block, the inner wall of the second U-shaped groove is fixedly connected with a U-shaped toothed plate, one end of the moving block is provided with a fourth motor, and the output end of the fourth motor extends to the inside of the second U-shaped groove through the first connecting groove, the output end of the fourth motor is fixedly connected with a gear meshing with the U-shaped toothed plate, two groups of the fixed blocks are perpendicular to each other relative to the center of the workbench, the laser welder and the chamfering head are in the same straight line, and the horizontal included angle between the laser welder and the chamfering head and the aluminum alloy rod is forty-five degrees, so that the device can automatically and accurately perform double-sided welding work.

[0011] Preferably, the chamfering mechanism includes a second electric push rod, the movement of the fixed block is fixedly connected with a second electric push rod, the output end of the second electric push rod is fixedly connected with a third motor, the output end of the third motor is fixedly connected with a chamfering head, and the control ends of the fourth double shaft motor, the second motor, the laser welder, the second electric push rod, the third motor and the fourth motor are electrically connected with the control panel, so that the device can automatically chamfer.

[0012] The operation method of the device is as follows: Step 1: First adjustment: First, adjust the distance between the right-angle slides. The first dual-axis motor and the threaded sleeve use the first threaded rod to move the adjustment crossbar and the right-angle slide closer to each other, thereby controlling the length of the aluminum alloy door and window. At the same time, the second dual-axis motor uses the second threaded rod to move the two sets of right-angle slides closer to each other, 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. Step 2: Adjust the distance between the armor plates for the second time. The third dual-axis motor controls the movement of the armor plates through the third threaded rod to facilitate the placement and subsequent clamping of the aluminum alloy rods. This also ensures that the aluminum alloy doors and windows are always in the center of the workbench. Step 3: Adjust for the third time, and 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 movable seat, the connecting frame, the U-shaped piece and the fixed block approach each other through the fourth threaded rod. At this time, the U-shaped piece and the fixed block move along the axial direction of the fourth threaded rod. At the same time, the second motor makes the U-shaped piece and the fixed block move along the axial direction of the fifth threaded rod through the fifth threaded rod. Through the movement in the horizontal direction and the forty-five-degree direction, the two sets of laser welders can be respectively located on both sides of the width of the aluminum alloy doors and windows. At this time, the two sets of laser welders are respectively located on the innermost side of the connection of the aluminum alloy rods; Step 4: Positioning and clamping: The user places the aluminum alloy rod on the top of the right-angle slide. The bottom end of the aluminum alloy rod is aligned with the top of the first distance sensor and the inner wall of the bottom end of the right-angle slide. At this time, the first dual-axis motor and the second dual-axis motor make the four groups of right-angle slides close to each other, so that the ends of the aluminum alloy rod can be aligned with each other. Step 5: Auxiliary clamping: The four sets of armor plates are clamped and fixed by two sets of third dual-axis motors and third threaded rods to facilitate subsequent movement and welding. After the armor plates clamp and fix the aluminum alloy rods, the four sets of right-angle slides are promptly controlled by the first dual-axis motor and the second dual-axis motor to reset, so as to facilitate the positioning and clamping of the next set of aluminum alloy rods. Step 6: Position adjustment: the output end of the first electric push rod drives the lifting platform, the welding fixing platform and the aluminum alloy rod to move upward, so that the aluminum alloy rod is at the center position of the two sets of U-shaped parts. Then, the first motor, the worm and the worm gear are used to rotate the connecting rod, the welding fixing platform and the aluminum alloy rod, and the angle of rotation is controlled by the angle sensor. Step seven: welding. The laser welder can be used to weld the connection of the aluminum alloy rod. The fourth motor, gear and U-shaped tooth plate can be used to 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 according to the connection of the aluminum alloy rod, so that the connection of the aluminum alloy rod can be welded. When the top of the aluminum alloy rod is welded, the fourth motor, gear and U-shaped tooth plate are used to rotate the moving block, the fixed block and the laser welder 180 degrees, so that the laser welder is at the bottom end of the aluminum alloy rod. The fourth motor is used to enable the laser welder at one end of the fixed block to weld the bottom surface of the connection of the aluminum alloy rod, thereby completing the welding of both sides of the connection of the aluminum alloy rod at one time. Step 8: Chamfering. After welding is completed, the chamfering head is placed on one side of the corner of the aluminum alloy rod connection through the fourth dual-axis motor. The chamfering head is controlled by the second electric push rod to be at the corner of the aluminum alloy rod. The chamfering head is driven by the third motor to rotate at high speed. The chamfering head is controlled by the fourth dual-axis motor to move, thereby completing the chamfering of the corner of the aluminum alloy rod. Step 9: After the welding and chamfering are completed, the welding fixture and the aluminum alloy rod are rotated 90 degrees, and the welding fixture and the aluminum alloy rod are reset by the first electric push rod. The armor plate is no longer clamped on the aluminum alloy rod by the third dual-axis motor. At this time, the user can remove the aluminum alloy rod that has been welded and chamfered, replace it with the next set of aluminum alloy rods, and then continue welding and chamfering.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The user first sets the parameters of this device according to the product parameters of this batch, and first adjusts the distance between the right-angle slides. The first double-axis motor and the threaded sleeve make the two sets of adjustment cross bars close to each other through the first threaded rod, so that the right-angle slides are close to each other, thereby controlling the length of the aluminum alloy doors and windows. At the same time, the second double-axis motor makes the two sets of right-angle slides close to each other through the second threaded rod, thereby controlling the width of the aluminum alloy doors and windows. The distance between each set of right-angle slides is controlled by the first distance sensor and the second distance sensor, so that the distance between each two sets of right-angle slides is slightly larger than the required size of the aluminum alloy doors and windows, which is convenient for users to place aluminum alloy rods. Then, the distance between the armor plates is adjusted. The third double-axis motor controls the movement of the armor plates through the third threaded rod, and makes the relative The distance between the armor plates is also slightly larger than the required size of the aluminum alloy doors and windows, so that users can place the aluminum alloy rods and subsequently clamp the aluminum alloy rods conveniently. At the same time, it can also ensure that the aluminum alloy doors and windows are always in the middle of the workbench to ensure subsequent welding work. 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 piece and fixed block approach each other through the fourth threaded rod. At this time, the U-shaped piece and the fixed block move along the axial direction of the fourth threaded rod. At the same time, the second motor moves the U-shaped piece and the fixed block along the axial direction of the fifth threaded rod through the fifth threaded rod. Through movement in the horizontal direction and the forty-five degree direction, the two sets of laser welders can be respectively located at 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 doors and windows minus twice the thickness of the aluminum alloy rods. The distance between the two sets of laser welders and the center of the workbench is half the length of the aluminum alloy doors and windows minus the thickness of the aluminum alloy rods. At this time, the two sets of laser welders are respectively located on the innermost side of the connection of the aluminum alloy rods. All dimensions are adjusted. The user puts the aluminum alloy rod into the top of the right-angle slide. At this time, the bottom end of the aluminum alloy rod is aligned with the top of the first distance sensor and the inner wall of the bottom end of the right-angle slide. At this time, the four sets of right-angle slides are centered and close to each other through the first dual-axis motor and the second dual-axis motor, so that the ends of the aluminum alloy rods can be fitted together. At this time, the connection seams of the ends of the aluminum alloy rods are all forty-five degrees, and then through the two sets of The three double-axis motors and the third threaded rod enable the four-assembly armor plate to clamp and fix the four groups of aluminum alloy rods, which is convenient for subsequent movement and welding. After the armor plate clamps and fixes the aluminum alloy rods, the first double-axis motor and the second double-axis motor are used to promptly control the four groups of right-angle slides to reset, which is convenient for positioning and clamping the next group of aluminum alloy rods. The output end of the first electric push rod drives the lifting platform, the welding fixing platform and the aluminum alloy rod to move upward, so that the aluminum alloy rod is in the center position of the two groups of U-shaped parts. Then, the first motor, worm and worm gear are used to rotate the connecting rod, the welding fixing platform and the aluminum alloy rod. The rotation angle is controlled by the angle sensor. When the welding fixing platform and the aluminum alloy rod rotate ninety degrees, the welding fixing platform and the aluminum alloy rod stop rotating.The laser welder can be used to weld the joints of the aluminum alloy rods. The fourth motor, gear and U-shaped tooth plate can be used to 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 according to the joints of the aluminum alloy rods, so that the joints of the aluminum alloy rods can be welded. When the top of the aluminum alloy rod is welded, the fourth motor, gear and U-shaped tooth plate are used to rotate the moving block, the fixed block and the laser welder 180 degrees, so that the laser welder is at the bottom end of the aluminum alloy rod. The fourth motor is used to enable the laser welder at one end of the fixed block to weld the aluminum alloy. The bottom surface of the rod connection is welded, thereby completing the welding of both sides of the aluminum alloy rod connection at one time. After welding is completed, the chamfering washing head is placed on one side of the corner of the aluminum alloy rod connection through the fourth double-axis motor, and the chamfering washing head is controlled to be at the corner of the aluminum alloy rod by the second electric push rod. The chamfering washing head is driven to rotate at high speed by the third motor, and the chamfering washing head is controlled to move by the fourth double-axis motor, thereby completing the chamfering of the corner of the aluminum alloy rod, avoiding the corner of the aluminum alloy rod being too sharp and scratching the user, thereby improving the safety of the user, and performing fully automatic welding and chamfering through the set program, not only It can ensure the quality of welding and chamfering, and can also reduce the user's work intensity and shorten the welding process, thereby improving production efficiency. After chamfering is completed, the fixing block and the chamfering head are reset, and the welding fixing table and the aluminum alloy rod are controlled by the first motor and the angle sensor to rotate 180 degrees, and the other side of the aluminum alloy door and window is welded and chamfered again. After welding and chamfering are completed, the welding fixing table and the aluminum alloy rod are rotated 90 degrees, and the welding fixing table and the aluminum alloy rod are controlled to reset by the first electric push rod, and the armor plate is no longer clamped on the aluminum alloy rod by the third dual-axis motor. At this time, the user can complete welding and chamfering. The aluminum alloy rods are removed and replaced with the next set of aluminum alloy rods, and then welding and chamfering can be continued. This device does not require multiple people to operate, and only one person can complete the welding and chamfering work, which reduces the user's work intensity and workload. It can also ensure that the positioning of each welding is the same, and can weld and chamfer in one go. At the same time, it can also be adjusted according to aluminum alloy doors and windows of different sizes, expanding its scope of use and reducing its limitations. It can not only improve product quality and production efficiency, and ensure product yield, but also avoid sharp corners from scratching users, improving user safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a cross-sectional perspective schematic diagram of the positioning and clamping mechanism of the present invention; Figure 3 is a cross-sectional perspective schematic diagram of the auxiliary clamping mechanism of the present invention; Figure 4It is a cross-sectional perspective view of the steering mechanism in the application; Figure 5 It is a perspective view of the fourth threaded rod and the fifth threaded rod in the application; Figure 6 It is a perspective view of the connecting frame and the third motor in the application; Figure 7 It is a cross-sectional perspective view of the first U-shaped groove and the moving block in the application.

[0015] In the figure: 1, workbench; 2, control panel; 3, adjusting crossbar; 4, rotating groove; 5, threaded sleeve; 6, first double-shaft motor; 7, first threaded rod; 8, guide hole; 9, guide rod; 10, first distance sensor; 11, right-angle sliding seat; 12, second double-shaft motor; 13, second threaded rod; 14, second distance sensor; 15, aluminum alloy rod; 16, lifting platform; 17, sliding groove; 18, sliding block; 19, first electric push rod; 20, welding fixing platform; 21, moving groove; 22, third double-shaft motor; 23, third threaded rod; 24, armor plate; 25, connecting rod; 26, worm wheel; 27, first motor; 28, worm; 29, angle sensor; 30, adjusting platform; 31, inclined moving seat; 32, fourth double-shaft motor; 33, fourth threaded rod; 34, second motor; 35, fifth threaded rod; 36, connecting frame; 37, U-shaped piece; 38, fixed block; 39, laser welder; 40, second electric push rod; 41, third motor; 42, chamfered hair washing; 43, first U-shaped groove; 44, second U-shaped groove; 45, first connecting groove; 46, second connecting groove; 47, moving block; 48, fixed rod; 49, U-shaped toothed plate; 50, fourth motor; 51, gear. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0017] Please refer to Figure 1-Figure 7 An embodiment provided by the application: A device and method for automatically welding aluminum alloy doors and windows, comprising 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. The top of the lifting platform 16 is rotatably connected to a welding fixing platform 20 located on the surface of the workbench 1. The inner wall of the bottom end of the lifting platform 16 is connected to a connecting rod 25 fixedly connected to the middle of the welding fixing platform 20 via 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. See also Figure 1 and Figure 2 In this embodiment, the positioning and clamping mechanism includes an adjusting cross bar 3, both ends of the workbench 1 are slidably connected with the adjusting cross bar 3, a rotation groove 4 is opened on one side of the workbench 1, and a guide hole 8 is opened on the other side of the workbench 1, and both ends of the guide hole 8 are slidably connected with a guide rod 9 fixedly connected to the adjusting cross bar 3, both ends of the rotation groove 4 are connected to a threaded sleeve 5 through a bearing, and one end of the rotation groove 4 is respectively connected to a first threaded rod 7 connected to the adjusting cross bar 3 through a bearing through a thread, the middle part of the rotation groove 4 is fixedly connected to a first dual-axis motor 6, and the output ends of the first dual-axis motor 6 are respectively fixedly connected to one end of the threaded sleeve 5, and the sides of the adjusting cross bars 3 close to each other are fixedly connected There is a first distance sensor 10, both ends of the adjusting crossbar 3 are slidably connected to a right-angle slide 11, the middle part 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, and one end of the second threaded rod 13 is connected to the adjusting crossbar 3 through a bearing, the right-angle slide 11 is connected to the second threaded rod 13 through a thread, and the side of the right-angle slide 11 close to each other is fixedly connected with a second distance sensor 14, 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 end of the right-angle slide 11 are in the same horizontal plane, which is convenient for automatic positioning and clamping; See also Figure 3 and Figure 4 In this embodiment, the steering mechanism includes a worm gear 26. The middle and lower 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 interior of the lifting platform 16 is fixedly connected to a first motor 27. The output end of the first motor 27 is fixedly connected to a worm 28, and one end of the worm 28 is connected to the inner wall of the lifting platform 16 through a bearing. The angle sensor 29 and the control end of the first motor 27 are both electrically connected to the control panel 2, which facilitates the device to perform welding and precise steering operations. See also Figure 2 and Figure 3, In this embodiment, the auxiliary clamping mechanism includes a slide groove 17, and the surface of the lifting platform 16 is evenly provided with a slide groove 17. The interior of the slide groove 17 is slidably connected to a slider 18 fixedly connected to the workbench 1. The middle part of the workbench 1 is provided with a first electric push rod 19 fixedly connected to the lifting platform 16. The top of the welding fixed platform 20 is provided with a symmetrical moving groove 21. The interior of the moving groove 21 is slidably connected to an armor plate 24 that fits the outer wall of the middle part of the aluminum alloy rod 15. Two groups of third dual-axis motors 22 are fixedly connected to the middle part of the welding fixed platform 20. The output ends of the third dual-axis motors 22 are all fixedly connected to the third threaded rod 23, and one end of the third threaded rod 23 is connected to the inner wall of the moving groove 21 through a bearing. The middle and lower parts of the armor plates 24 are connected to the third threaded rod 23 through threads. The axial directions of the two groups of third dual-axis motors 22 are perpendicular to each other. The control ends of the third dual-axis motors 22 are all electrically connected to the control panel 2, which is convenient for the auxiliary clamping of the device and convenient for subsequent welding work. See also Figure 1 、 Figure 5-Figure 7In this embodiment, the welding mechanism includes an adjustment platform 30, one side of the workbench 1 is fixedly connected to the adjustment platform 30, both ends of the adjustment platform 30 are slidably connected to the tilting movable seat 31, the middle of the adjustment platform 30 is fixedly connected to the fourth dual-axis motor 32, the output end of the fourth dual-axis motor 32 is fixedly connected to the fourth threaded rod 33 connected to the bottom end of the tilting movable seat 31 by a thread, the horizontal angle between the tilting movable seat 31 and the aluminum alloy rod 15 is forty-five degrees, one end of the tilting movable seat 31 is provided with a second motor 34, the output end of the second motor 34 is fixedly connected to the fifth threaded rod 35, and one end of the fifth threaded rod 35 is connected to the inner wall of the tilting movable seat 31 through a bearing. The top of the tilting movable seat 31 is slidably connected to a connecting frame 36 that is threadedly connected to the fifth threaded rod 35. The top of the connecting frame 36 is fixedly connected to a U-shaped U-shaped piece 37. A fixing block 38 is provided on one side of the U-shaped piece 37. One end of the fixing block 38 is fixedly connected to a laser welder 39. The other side of the fixing block 38 is provided with a chamfering mechanism for chamfering. A first U-shaped groove 43 is provided on one side of the U-shaped piece 37. A second U-shaped groove 44 is provided on the other side of the U-shaped piece 37. A second connecting groove 46 connected to the first U-shaped groove 43 is provided on one side of the U-shaped piece 37. The inner wall of one side of the first U-shaped groove 43 is provided with a second U-shaped groove 44. The first connecting groove 45 and the first U-shaped groove 43 are all slidably connected to the moving block 47, one end of the moving block 47 is fixedly connected to the fixing rod 48 slidably connected to the second connecting groove 46, one end of the fixing rod 48 is fixedly connected to the fixing block 38, the inner wall of the second U-shaped groove 44 is fixedly connected to the U-shaped tooth plate 49, one end of the moving block 47 is provided with a fourth motor 50, and the output end of the fourth motor 50 passes through the first connecting groove 45 and extends to the inside of the second U-shaped groove 44, the output end of the fourth motor 50 is fixedly connected to a gear 51 meshing with the U-shaped tooth plate 49, the two sets of fixed blocks 38 are perpendicular to each other relative to the center of the workbench 1, the laser welder 39 and The chamfering washing head 42 is on the same straight line, and the horizontal angles between the laser welder 39 and the chamfering washing head 42 and the aluminum alloy rod 15 are all forty-five degrees, which facilitates the automatic and precise double-sided welding of the device. The chamfering mechanism includes a second electric push rod 40, and the movement of the fixed block 38 is fixedly connected to the second electric push rod 40. The output ends of the second electric push rod 40 are fixedly connected to the third motor 41, and the output ends of the third motor 41 are fixedly connected to the chamfering washing 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 of the device. It should be noted that the control end of the control panel 2 is electrically connected to the external power supply to facilitate the automatic operation of the device. The control ends 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 the device. The device operates as follows: 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 use the first threaded rod 7 to make the adjustment cross bar 3 and the right-angle slide 11 approach each other, thereby controlling the length of the aluminum alloy door and window. At the same time, the second dual-axis motor 12 uses the second threaded rod 13 to make the two groups of right-angle slides 11 approach each other, thereby controlling the width of the aluminum alloy door and window. The distance between each group of right-angle slides 11 is controlled by the first distance sensor 10 and the second distance sensor 14; Step 2: Second adjustment, and then adjust the distance between the armor plates 24. The third dual-axis motor 22 controls the armor plates 24 to move through the third threaded rod 23, so as to facilitate the placement and subsequent clamping of the aluminum alloy rod 15, while also ensuring that the aluminum alloy doors and windows are always in the center of the workbench 1. Step 3: Adjust for the third time, and 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 movable seat 31, the connecting frame 36, the U-shaped piece 37 and the fixed block 38 approach each other through the fourth threaded rod 33. At this time, the U-shaped piece 37 and the fixed 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 piece 37 and the fixed block 38 move along the axial direction of the fifth threaded rod 35 through the fifth threaded rod 35. Through the movement in the horizontal direction and the forty-five-degree direction, the two sets of laser welders 39 can be respectively located on both sides of the width of the aluminum alloy door and window. At this time, the two sets of laser welders 39 are respectively located on the innermost side of the connection of the aluminum alloy rod 15; Step 4: Positioning and clamping. The user places the aluminum alloy rod 15 on the top of the right-angle slide 11. The bottom end of the aluminum alloy rod 15 is aligned with the top 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 groups of right-angle slides 11 close to each other, so that the ends of the aluminum alloy rod 15 can be aligned with each other. Step 5: Auxiliary clamping: The four sets of armor plates 24 are used to clamp and fix the four sets of aluminum alloy rods 15 through the two sets of third dual-axis motors 22 and the third threaded rods 23, so as to facilitate 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 controlled to reset through the first dual-axis motor 6 and the second dual-axis motor 12, so as to facilitate the positioning and clamping of the next set of aluminum alloy rods 15. Step 6: Position adjustment: the output end of the first electric push rod 19 drives the lifting platform 16, the welding fixing platform 20 and the aluminum alloy rod 15 to move upward, so that the aluminum alloy rod 15 is located at the center position of the two sets of U-shaped parts 37. Then, the first motor 27, the worm 28 and the worm gear 26 are used to rotate the connecting rod 25, the welding fixing platform 20 and the aluminum alloy rod 15. The angle of rotation is controlled by the angle sensor 29. Step seven: welding. The laser welder 39 can be used to weld the connection of the aluminum alloy rod 15. The fourth motor 50, the gear 51 and the U-shaped tooth plate 49 can enable the movable 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 according to the connection of the aluminum alloy rod 15, so that the connection of the aluminum alloy rod 15 can be welded. When the top of the aluminum alloy rod 15 is welded, the fourth motor 50, the gear 51 and the U-shaped tooth plate 49 are used to rotate the movable block 47, the fixed block 38 and the laser welder 39 180 degrees, so that the laser welder 39 is at the bottom end of the aluminum alloy rod 15. The fourth motor 50 enables 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 at one time. Step 8: Chamfering. After welding is completed, the chamfering head 42 is positioned on one side of the corner of the connection of the aluminum alloy rod 15 by the fourth dual-axis motor 32. The chamfering head 42 is controlled by the second electric push rod 40 to be positioned at the corner of the aluminum alloy rod 15. The chamfering head 42 is driven by the third motor 41 to rotate at high speed. The chamfering head 42 is controlled by the fourth dual-axis motor 32 to move, thereby completing the chamfering of the corner of the aluminum alloy rod 15. Step 9: After the welding and chamfering are completed, the welding fixing table 20 and the aluminum alloy rod 15 are rotated ninety degrees, and the welding fixing table 20 and the aluminum alloy rod 15 are reset by controlling the first electric push rod 19. The armor plate 24 is no longer clamped on the aluminum alloy rod 15 by the third dual-axis motor 22. At this time, the user can remove the aluminum alloy rod 15 that has been welded and chamfered, replace it with the next set of aluminum alloy rods 15, and then continue welding and chamfering.

[0018] The user first sets the parameters of this device according to the product parameters of this batch, and first adjusts the distance between the right-angle slides 11. The output end of the first double-axis motor 6 drives the threaded sleeve 5 to rotate. The rotating threaded sleeve 5 can shorten the first threaded rod 7, so that the two sets of adjustment cross bars 3 are close to each other. At the same time, the guide rod 9 is made to slide inside the guide hole 8 by adjusting the cross bars 3, so as to realize the guiding work. The right-angle slides 11 are made to approach each other by the adjustment cross bars 3 that are close to each other, so as to control the length of the aluminum alloy doors and windows. At the same time, the output end of the second double-axis motor 12 drives the second threaded rod 13 to rotate. The rotating second threaded rod 13 makes the two sets of right-angle slides 11 approach each other, so as to control the width of the aluminum alloy doors and windows. The distance sensor 10 and the second distance sensor 14 control the distance between each group of right-angle slides 11, so that the distance between each two groups of right-angle slides 11 is slightly larger than the size of the required aluminum alloy doors and windows, which is convenient for users to place the aluminum alloy rods 15, and then adjust the distance between the armor plates 24. The output end of the third dual-axis motor 22 drives the third threaded rod 23 to rotate, and the rotating third threaded rod 23 can control the armor plates 24 to move, and make the distance between the relative armor plates 24 slightly larger than the size of the required aluminum alloy doors and windows, so that users can place the aluminum alloy rods 15 and subsequently clamp the aluminum alloy rods 15. At the same time, it can also ensure that the aluminum alloy doors and windows are always in the middle position of the workbench 1, ensuring subsequent welding work, and finally adjust the two groups of lasers. The distance between the laser welders 39, at this time, the output end of the fourth dual-axis motor 32 drives the fourth threaded rod 33 to rotate, and the fourth threaded rod 33 can make the tilting movable seat 31, the connecting frame 36, the U-shaped piece 37 and the fixed block 38 approach each other, and at this time the U-shaped piece 37 and the fixed block 38 move along the axial direction of the fourth threaded rod 33, and at the same time the output end of the second motor 34 drives the fifth threaded rod 35 to rotate, and the rotating fifth threaded rod 35 makes the U-shaped piece 37 and the fixed block 38 move along the axial direction of the fifth threaded rod 35, through the movement in the horizontal direction and the forty-five degree direction, the two groups of laser welders 39 can be respectively located on both sides of the width of the aluminum alloy doors and windows, and the distance between the two groups of laser welders 39 is the distance between the aluminum alloy doors and windows. The width of the window is subtracted from twice the thickness of the aluminum alloy rod 15. The distance between the two groups of laser welders 39 and the center of the workbench 1 is half the length of the aluminum alloy door and window minus the thickness of the aluminum alloy rod 15. At this time, the two groups of laser welders 39 are respectively located at the innermost side of the connection of the aluminum alloy rod 15. All dimensions are adjusted. The user puts the aluminum alloy rod 15 into the top of the right-angle slide 11. At this time, the bottom end of the aluminum alloy rod 15 is aligned with the top of the first distance sensor 10 and the inner wall of the bottom end of the right-angle slide 11. At this time, the four groups of right-angle slides 11 are centered and close to each other through the first dual-axis motor 6 and the second dual-axis motor 12, so that the ends of the aluminum alloy rod 15 can be aligned with each other. At this time, the connection seams of the ends of the aluminum alloy rods 15 are all forty-five degrees.Then, two sets of third dual-axis motors 22 and third threaded rods 23 are used to enable the four-assembly deck 24 to clamp and fix the four sets of aluminum alloy rods 15, so as to facilitate subsequent movement and welding. After the armor plate 24 clamps and fixes the aluminum alloy rods 15, the first dual-axis motor 6 and the second dual-axis motor 12 are used to promptly control the four sets of right-angle slides 11 to reset, so as to facilitate 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 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 output end of the first motor 27 drives the worm 28 to rotate, and the rotating worm 28 drives the worm gear 26 to rotate, and the worm gear 26 drives the connecting rod 25 Rotate, the connecting rod 25 drives the welding fixing platform 20 and the aluminum alloy rod 15 to rotate, and the rotation angle is controlled by the angle sensor 29. When the welding fixing platform 20 and the aluminum alloy rod 15 rotate ninety degrees, the welding fixing platform 20 and the aluminum alloy rod 15 stop rotating, and the connection of the aluminum alloy rod 15 can be welded by the laser welder 39. The output end of the fourth motor 50 drives the gear 51 to rotate. At this time, the U-shaped tooth plate 49 can make the moving block 47 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. At this time, the laser welder 39 moves according to the connection of the aluminum alloy rod 15, so that the aluminum alloy rod 15 can be connected. After the top end of the aluminum alloy rod 15 is welded, the fourth motor 50, the gear 51 and the U-shaped tooth plate 49 are used to rotate the movable block 47, the fixed block 38 and the laser welder 39 180 degrees, so that the laser welder 39 is at the bottom end of the aluminum alloy rod 15. The fourth motor 50 is used to make 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, thereby completing the welding of both sides of the connection of the aluminum alloy rod 15 at one time. After the welding is completed, the fourth dual-axis motor 32 is used to make the chamfering washing head 42 be located on one side of the corner of the connection of the aluminum alloy rod 15. The second electric push rod 40 is used to control the chamfering washing head 42 to be at the corner of the aluminum alloy rod 15. The third motor 41 is used to move the chamfering washing head 42 to the side of the corner of the connection of the aluminum alloy rod 15. The chamfering head 42 is driven to rotate at a high speed, and the chamfering head 42 is controlled to move by the fourth dual-axis motor 32, thereby completing the chamfering of the corners of the aluminum alloy rod 15, avoiding the corners of the aluminum alloy rod 15 being too sharp and scratching the user, thereby improving the safety of the user, and performing fully automatic welding and chamfering through the set program, which can not only ensure the quality of welding and chamfering, but also reduce the user's work intensity and reduce the welding process, thereby improving production efficiency. After the chamfering is completed, the fixing block 38 and the chamfering head 42 are reset, and the welding fixing table 20 and the aluminum alloy rod 15 are controlled by the first motor 27 and the angle sensor 29 to rotate 180 degrees, and the other side of the aluminum alloy door and window is welded and chamfered again. After the welding and chamfering are completed,After the welding fixing platform 20 and the aluminum alloy rod 15 rotate ninety degrees, the welding fixing platform 20 and the aluminum alloy rod 15 are controlled to reset by the first electric push rod 19, and the armor plate 24 is no longer clamped on the aluminum alloy rod 15 by the third dual-axis motor 22. At this time, the user can remove the aluminum alloy rod 15 that has been welded and chamfered, replace it with the next set of aluminum alloy rods 15, and continue welding and chamfering. This device does not require multiple people to operate, and only one person is needed to complete the welding and chamfering work, which reduces the user's work intensity and workload. It can also ensure that the positioning of each welding is the same, and can weld and chamfer in one go. At the same time, it can also be adjusted according to aluminum alloy doors and windows of different sizes, thereby increasing its scope of use and reducing its limitations. It can not only improve product quality and production efficiency, ensure product yield, but also prevent sharp corners from scratching users, thereby improving user safety.

[0019] 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 embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An automatic welding device for aluminum alloy doors and windows, comprising a workbench (1) and an aluminum alloy rod (15) arranged 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 the aluminum alloy rod (15) is provided on the top of the workbench (1), a lifting platform (16) is slidably connected to the middle of the workbench (1), the top of the lifting platform (16) is rotatably connected to a welding fixing platform (20) located on the surface of the workbench (1), the inner wall of the bottom end of the lifting platform (16) is connected to a connecting rod (25) fixedly connected to the middle of the welding fixing platform (20) 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 on the top of the lifting platform (16), and a welding mechanism for adjustment and welding is provided at one end of the workbench (1).

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

3. The automatic welding device for aluminum alloy doors and windows according to claim 1, characterized in that: The positioning and clamping mechanism includes an adjusting cross bar (3), both ends of the workbench (1) are slidably connected to the adjusting cross bar (3), a rotating groove (4) is provided on one side of the workbench (1), and a guide hole (8) is provided on the other side of the workbench (1), both ends of the guide hole (8) are slidably connected to a guide rod (9) fixedly connected to the adjusting cross bar (3), both ends of the rotating groove (4) are connected to a threaded sleeve (5) through a bearing, one end of the rotating groove (4) is respectively connected to a first threaded rod (7) connected to the adjusting cross bar (3) through a bearing, the middle of the rotating groove (4) is fixedly connected to a first dual-axis motor (6), and the output end of the first dual-axis motor (6) is respectively fixedly connected to one end of the threaded sleeve (5), and the adjusting cross bars (3) are close to each other. One side of the adjusting cross bar (3) is fixedly connected to a first distance sensor (10), both ends of the adjusting cross bar (3) are slidably connected to a right-angle slide (11), the middle part of the adjusting cross bar (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), and one end of the second threaded rod (13) is connected to the adjusting cross bar (3) through a bearing, the right-angle slide (11) is connected to the second threaded rod (13) through a thread, and the side of the right-angle slide (11) close to each other is fixedly connected to a second distance sensor (14), the first threaded rod (7) and the second threaded rod (13) are perpendicular to each other, and the top of the welding fixing platform (20) and the inner wall of the bottom end of the right-angle slide (11) are in the same horizontal plane.

4. The automatic welding device for aluminum alloy doors and windows according to claim 3, characterized in that: The control ends 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 1, characterized in that: The steering mechanism includes a worm gear (26), a worm gear (26) is fixedly connected to the middle and lower part of the connecting rod (25), an angle sensor (29) is fixedly connected to the top of the connecting rod (25), a first motor (27) is fixedly connected to the interior of the lifting platform (16), an output end of the first motor (27) is fixedly connected to a worm (28), and one end of the worm (28) is connected to the inner wall of the lifting platform (16) through 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 1, characterized in that: The auxiliary clamping mechanism includes a slide groove (17), the surface of the lifting platform (16) is evenly provided with the slide groove (17), the interior of the slide groove (17) is slidably connected to a slider (18) fixedly connected to the workbench (1), the middle of the workbench (1) is provided with a first electric push rod (19) fixedly connected to the lifting platform (16), the top of the welding fixed platform (20) is provided with a symmetrical moving groove (21), the interior of the moving groove (21) is slidably connected to an armor plate (24) that fits the outer wall of the middle of the aluminum alloy rod (15) ), two groups of third dual-axis motors (22) are fixedly connected to the middle of the welding fixing table (20), the output ends of the third dual-axis motors (22) are fixedly connected to the third threaded rods (23), and one end of the third threaded rods (23) is connected to the inner wall of the movable groove (21) through a bearing, the middle and lower parts of the armor plate (24) are connected to the third threaded rods (23) through threads, the axial directions of the two groups of the third dual-axis motors (22) are perpendicular to each other, and the control ends of the third dual-axis motors (22) are electrically connected to the control panel (2).

7. The automatic welding device for aluminum alloy doors and windows according to claim 1, characterized in that: The welding mechanism includes an adjustment table (30), one side of the workbench (1) is fixedly connected to the adjustment table (30), both ends of the adjustment table (30) are slidably connected to the tilting movable seat (31), the middle of the adjustment table (30) is fixedly connected to a fourth dual-axis motor (32), the output end of the fourth dual-axis motor (32) is fixedly connected to a fourth threaded rod (33) connected to the bottom end of the tilting movable seat (31) through a thread, the horizontal angle between the tilting movable seat (31) and the aluminum alloy rod (15) is 45 degrees, one end of the tilting movable seat (31) is provided with a second motor (34), the output end of the second motor (34) is fixedly connected to the bottom end of the tilting movable seat (31). A fifth threaded rod (35) is fixedly connected, and one end of the fifth threaded rod (35) is connected to the inner wall of the tilting movable seat (31) through a bearing, and the top of the tilting movable seat (31) is slidably connected to a connecting frame (36) connected to the fifth threaded rod (35) through a thread, and the top of the connecting frame (36) is fixedly connected to a U-shaped U-shaped member (37), and one side of the U-shaped member (37) is provided with a fixed block (38), one end of the fixed block (38) is fixedly connected to a laser welder (39), and the other side of the fixed block (38) is provided with a chamfering mechanism for chamfering, and one side of the U-shaped member (37) is provided with a first U-shaped The U-shaped member (37) is provided with a second U-shaped groove (44) on the other side, and a second connecting groove (46) connected to the first U-shaped groove (43) is provided on one side of the U-shaped member (37). The inner wall of one side of the first U-shaped groove (43) is provided with a first connecting groove (45) connected to the second U-shaped groove (44). The interior of the first U-shaped groove (43) is slidably connected to a moving block (47). One end of the moving block (47) is fixedly connected to a fixing rod (48) slidably connected to the second connecting groove (46). One end of the fixing rod (48) is fixedly connected to the fixing block (38). The second U-shaped groove (44) is provided with a second connecting groove (46) on the inner wall of the first U-shaped groove (43). ) are fixedly connected with a U-shaped tooth plate (49) on the inner wall, one end of the moving block (47) is provided with a fourth motor (50), and the output end of the fourth motor (50) extends through the first connecting groove (45) to the inside of the second U-shaped groove (44), and the output end of the fourth motor (50) is fixedly connected with a gear (51) meshing with the U-shaped tooth plate (49), the two groups of the fixed blocks (38) are perpendicular to each other relative to the center of the workbench (1), the laser welder (39) and the chamfering head (42) are on the same straight line, and the horizontal angles between the laser welder (39) and the chamfering head (42) and the aluminum alloy rod (15) are all forty-five degrees.

8. The automatic welding device for aluminum alloy doors and windows according to claim 7, characterized in that: 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 washing head (42), and 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).

9. A method for operating the automatic welding device for aluminum alloy doors and windows according to any one of claims 1 to 8, characterized in that: Step 1: First adjustment, first adjust the distance between the right-angle slides (11), the first double-axis motor (6) and the threaded sleeve (5) make the adjustment cross bar (3) and the right-angle slide (11) close to each other through the first threaded rod (7), thereby controlling the length of the aluminum alloy door and window, while the second double-axis motor (12) makes the two groups of right-angle slides (11) close to each other through the second threaded rod (13), thereby controlling the width of the aluminum alloy door and window, and the distance between each group of right-angle slides (11) is controlled by the first distance sensor (10) and the second distance sensor (14); Step 2: Adjust the distance between the armor plates (24) for the second time, and then adjust the distance between the armor plates (24). The third dual-axis motor (22) controls the armor plates (24) to move via the third threaded rod (23), so as to facilitate the placement of the aluminum alloy rod (15) and the subsequent clamping of the aluminum alloy rod (15), while also ensuring that the aluminum alloy doors and windows are always in the center of the workbench (1); Step 3: Adjust for the third time, and finally adjust the distance between the two groups of laser welders (39). At this time, the output end of the fourth dual-axis motor (32) can make the tilting movable seat (31), the connecting frame (36), the U-shaped piece (37) and the fixed block (38) approach each other through the fourth threaded rod (33). At this time, the U-shaped piece (37) and the fixed 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 piece (37) and the fixed block (38) move along the axial direction of the fifth threaded rod (35) through the fifth threaded rod (35). Through the movement in the horizontal direction and the forty-five degree direction, the two groups of laser welders (39) can be respectively located on both sides of the width of the aluminum alloy door and window. At this time, the two groups of laser welders (39) are respectively located at the innermost side of the connection of the aluminum alloy rod (15); Step 4: Positioning and clamping. The user places the aluminum alloy rod (15) on the top of the right-angle slide (11). The bottom of the aluminum alloy rod (15) is aligned with the top of the first distance sensor (10) and the inner wall of the bottom of the right-angle slide (11). At this time, the first double-axis motor (6) and the second double-axis motor (12) are used to make the four groups of right-angle slides (11) close to each other, so that the ends of the aluminum alloy rod (15) can be aligned with each other. Step 5: Auxiliary clamping, through two sets of third dual-axis motors (22) and third threaded rods (23), the four-assembly deck (24) clamps and fixes the four sets of aluminum alloy rods (15), which is convenient for subsequent movement and welding. After the armor plate (24) clamps and fixes the aluminum alloy rods (15), the four sets of right-angle slides (11) are promptly controlled to reset through the first dual-axis motor (6) and the second dual-axis motor (12), which is convenient for positioning and clamping the next set of aluminum alloy rods (15); Step 6: Position adjustment: the output end of the first electric push rod (19) drives the lifting platform (16), the welding fixing platform (20) and the aluminum alloy rod (15) to move upward, so that the aluminum alloy rod (15) is located at the center position of the two sets of U-shaped parts (37). Then, the first motor (27), the worm (28) and the worm gear (26) are used to rotate the connecting rod (25), the welding fixing platform (20) and the aluminum alloy rod (15), and the angle of rotation is controlled by the angle sensor (29); Step 7: Welding. The connection of the aluminum alloy rod (15) can be welded by the laser welder (39). The fourth motor (50), the gear (51) and the U-shaped tooth plate (49) can make the moving block (47) drive the fixed rod (48), the fixed block (38) and the laser welder (39) to move. At this time, the laser welder (39) moves according to the connection of the aluminum alloy rod (15), so that the connection of the aluminum alloy rod (15) can be welded. When the top weld of the aluminum alloy rod (15) is After the connection is completed, the movable block (47), the fixed block (38) and the laser welder (39) are rotated 180 degrees by the fourth motor (50), the gear (51) and the U-shaped tooth plate (49), so that the laser welder (39) is located at the bottom end of the aluminum alloy rod (15). The laser welder (39) at one end of the fixed block (38) is welded to the bottom surface of the connection of the aluminum alloy rod (15) by the fourth motor (50), thereby completing the welding of both sides of the connection of the aluminum alloy rod (15) at one time. Step 8: Chamfering. After welding is completed, the chamfering head (42) is positioned at one side of the corner of the connection of the aluminum alloy rod (15) by the fourth dual-axis motor (32). The chamfering head (42) is controlled by the second electric push rod (40) to be positioned at the corner of the aluminum alloy rod (15). The chamfering head (42) is driven to rotate at high speed by the third motor (41). The chamfering head (42) is controlled to move by the fourth dual-axis motor (32), thereby completing the chamfering of the corner of the aluminum alloy rod (15). Step 9: After the welding and chamfering are completed, the welding fixture (20) and the aluminum alloy rod (15) are rotated ninety degrees, and the welding fixture (20) and the aluminum alloy rod (15) are reset by controlling the first electric push rod (19). The armor plate (24) no longer clamps the aluminum alloy rod (15) by the third dual-axis motor (22). At this time, the user can remove the aluminum alloy rod (15) that has been welded and chamfered, replace it with the next set of aluminum alloy rods (15), and then continue welding and chamfering.

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