Aluminum alloy door and window welding device

Abstract

The invention discloses an aluminum alloy door and window welding device, and belongs to the technical field of door and window production. Comprising a workbench fixed to the ground, a profile fixing mechanism used for positioning and fixing four door and window aluminum alloy profiles, a welding mechanism used for welding four joints of gaps among the aluminum alloy profiles, and a rotating mechanism used for rotating and replacing corners of the door and window aluminum alloy profiles. Four unwelded aluminum alloy profiles are placed on the profile fixing mechanism to be positioned and fixed, the welding mechanism welds the joints of the aluminum alloy profiles, and after one position is welded, the rotating mechanism controls the whole profile fixing mechanism to rotate to weld the next gap of the aluminum alloy profiles. The four faces of one corner of the door and window aluminum alloy profile can be welded at a time, disassembly and positioning are not needed during welding of the four corners, and the production efficiency and the welding quality are improved.

Description

Technical Field

[0001] This invention belongs to the field of door and window manufacturing technology, specifically relating to an aluminum alloy door and window welding device. Background Technology

[0002] Aluminum alloy doors and windows are widely used in residential and commercial buildings due to their lightweight, corrosion resistance, high strength, and good thermal insulation performance. Aluminum alloy doors and windows are mainly assembled from frames, glass, and metal fittings. Most aluminum alloy profiles are assembled and fixed together using screws, rivets, or corner brackets. However, when it is necessary to enhance the strength and sealing of aluminum alloy doors and windows, welding is further performed at the joints of the aluminum alloy profiles in addition to the general assembly and fixing, in order to enhance the connection between the aluminum alloy profiles.

[0003] A search revealed Chinese invention patent CN120533578A, which discloses a seamless welding system for aluminum alloy doors and windows. The system includes a machine base, aluminum alloy profiles for doors and windows, and a welding torch. An mounting plate is fixedly installed on the machine base, and a positioning base plate matching the aluminum alloy profiles for doors and windows is mounted on the mounting plate. The positioning base plate is composed of a symmetrical "Y-shaped" structure. The aluminum alloy profiles for doors and windows are symmetrically placed on the positioning base plate. In use, the aluminum alloy profiles for doors and windows are placed on the positioning base plate manually or by a robotic arm. After the aluminum alloy profiles are symmetrically aligned by the "Y-shaped" positioning base plate, welding is performed.

[0004] The aluminum alloy profiles for doors and windows require welding at all four corners. However, the existing technology described above can only weld one corner of the aluminum alloy profile at a time, and only the upper surface of one corner can be welded at a time. After welding one corner, the aluminum alloy profile needs to be disassembled and reinstalled, resulting in low processing and production efficiency. Furthermore, it cannot fix aluminum alloy profiles of different sizes, and the joints of the aluminum alloy profiles are not accurately aligned, which may lead to poor welding quality. Summary of the Invention

[0005] To overcome the problems mentioned in the background art, the present invention adopts the following technical solution: An aluminum alloy door and window welding device, comprising: The workbench is constructed to provide support; A profile fixing mechanism is rotatably mounted on the upper part of a fixing platform. The profile fixing mechanism includes four fixing platforms, which are movably supported in the profile fixing mechanism. The four corners of the aluminum alloy door and window are placed on the four fixing platforms. Each fixing platform is provided with a limit component. The profile fixing mechanism is configured to position and fix the four corners of the aluminum alloy door and window. A welding mechanism is provided on one side of a workbench and is configured to weld aluminum alloy doors and windows that have been positioned and fixed. A rotating mechanism, mounted on a workbench, is configured to drive a profile fixing mechanism to rotate on the workbench, thereby enabling the welding mechanism to weld all four corners of the aluminum alloy doors and windows.

[0006] By adopting the above technical solution, four unwelded aluminum alloy profiles are placed on a fixed platform, and then the positions of the four fixed platforms are adjusted so that the joints of the aluminum alloy profiles are aligned with each other. Then, the limiting component is operated to limit and fix each aluminum alloy profile. After the operation is completed, the welding mechanism welds around each joint. After the welding is completed, the rotating mechanism drives the profile fixing mechanism to rotate, and the welding mechanism welds the next corner of the joint until all four corners are welded. It can weld all four sides of one corner of the door and window aluminum alloy profile in one go, and the welding of the four corners does not require disassembly and positioning, thus improving production efficiency and welding quality.

[0007] Optionally, the rotating mechanism includes a first motor and a turntable. The first motor is fixedly mounted on the bottom of the worktable, and the turntable is rotatably mounted on the upper part of the worktable. The output shaft of the first motor is connected to the turntable in a transmission manner.

[0008] Optionally, the profile fixing mechanism includes a first adjusting component and a second adjusting component. The first adjusting component is fixedly mounted on the turntable, and the second adjusting component is movably mounted on the first adjusting component. The fixing platform is movably mounted on the second adjusting component. The first adjusting component is configured to drive the fixing platform to move along the X-axis, and the second adjusting component is configured to drive the fixing platform to move along the Y-axis. The first adjusting component and the second adjusting component cooperate to control the four fixing platforms to move closer to or further away from each other.

[0009] Optionally, the first adjustment assembly includes a first adjustment frame, a second motor, a first lead screw, and two parallel first movable plates. The first adjustment frame is fixedly mounted on a turntable, the first lead screw is rotatably mounted on the inner side of the first adjustment frame, the second motor is fixedly mounted on the outer side of the first adjustment frame, and the output shaft of the second motor is drivenly connected to the first lead screw. The first lead screw is a bidirectional lead screw. The two first movable plates are slidably mounted on the upper part of the first adjustment frame, and a sliding block is fixedly connected to the bottom of the two first movable plates. The first lead screw passes through the sliding block, and the rotation of the first lead screw can drive the two first movable plates to move closer or further apart.

[0010] Optionally, the second adjustment assembly includes a second adjustment frame, a third motor, a second lead screw, and two parallel second moving plates. The second adjustment frame is fixedly installed on the upper part of the first adjustment frame. The second lead screw is rotatably installed on the inner side of the second adjustment frame. The axial direction of the second lead screw is perpendicular to the axial direction of the first lead screw. The second lead screw is a bidirectional lead screw. Two bending plates are movably installed on the second lead screw. Rotation of the second lead screw can drive the two bending plates to move closer or further apart. The end of the bending plate away from the second lead screw is fixedly connected to the second moving plate. The bottom of the fixed platform is slidably installed on the first moving plate, and the side of the fixed platform is slidably installed on the second moving plate. Each fixed platform can slide along the X-axis and Y-axis.

[0011] Optionally, the limiting assembly includes an outer limiting member and a clamping member. Each fixed platform is provided with two outer limiting members and two clamping members. The two outer limiting members are fixedly installed on two adjacent outer surfaces of a fixed platform. The inner side of the outer limiting member has a limiting plane. The clamping member includes a base plate. The base plate is L-shaped. The base plate is provided with mutually perpendicular support platforms for supporting aluminum alloy profiles. The upper part of the support platform is provided with a movable clamping head. The clamping head is provided with a clamping groove. The clamping groove of the clamping head and the two support platforms can form a rectangular clamping space. The base plate is also provided with an operating part. The operating part is movably connected to the clamping head. The operating part is configured to control the size of the clamping space.

[0012] Optionally, a notch is provided at the outer corner of the fixed platform, and a four-corner positioning assembly is provided on the outer side of the fixed platform. The four-corner positioning assembly includes four positioning members, one of which is provided at the outer corner of each fixed platform. The positioning member has a first positioning surface and a second positioning surface. The first positioning surface is in the same plane as the limiting plane of its adjacent outer limiting member, and the second positioning surface is in the same plane as the limiting plane of its adjacent outer limiting member. Both ends of the positioning member can be slidably installed in their adjacent outer limiting members, and the positioning member can move along a direction perpendicular to the upper surface of the fixed platform.

[0013] Optionally, each of the two outer limiting members has a mounting groove on the side near the positioning member. A movable block adapted to the mounting groove is fixedly connected to the positioning member. The movable block is positioned within the mounting groove and can move up and down along it. A tension spring is fixedly installed on the outer limiting member at the bottom of the mounting groove. The end of the tension spring near the movable block is fixedly connected to the movable block. When the upper surface of the positioning member is higher than the upper surface of the fixed platform, the tension spring is in a stretched state and tends to pull the movable block downwards. A locking member is provided on one of the outer limiting members on each fixed platform. One end of the locking member enters the mounting groove of the outer limiting member. A cylindrical housing is fixedly installed on the outer side of the external limiting member. A baffle is provided on the locking member. The baffle is disposed inside the cylindrical housing and can move axially. A spring is provided inside the cylindrical housing. The spring is disposed between the baffle and the side away from the external limiting member. The spring is always in a compressed state. The locking mechanism has a tendency to move into the mounting groove by means of the spring. A locking hole adapted to the locking member is provided on the moving block. When the moving block is at the uppermost part of the mounting groove, the locking member and the locking hole are coaxial. The locking member can enter the locking hole to lock the positioning member. At this time, the upper surface of the moving block is higher than the upper surface of the fixed platform.

[0014] Optionally, the welding mechanism includes a robotic arm and a welding head. The robotic arm includes a base, multiple rotatable connecting sections, and a welding end. The welding end is located at the head of the robotic arm, and the welding head is fixedly installed on the welding end.

[0015] Optionally, a fixed frame is provided at the lower part of the base, the fixed frame is fixedly installed on the ground, the base is slidably installed on the fixed frame, a rack is fixedly installed inside the fixed frame, a gear adapted to the rack is provided at the lower part of the base, a fourth motor is fixedly installed on the base, the output shaft of the fourth motor is connected to the gear transmission, and the welding device can move along the axial direction of the fixed frame by means of the gear and rack cooperation, so as to move closer to or away from the worktable.

[0016] In summary, the present invention has at least one of the following beneficial technical effects: 1. Through the profile fixing mechanism, four unwelded aluminum alloy profiles are placed on the fixing platform, and then the positions of the four fixing platforms are adjusted so that the joints of the aluminum alloy profiles are aligned with each other. Then, the limiting component is operated to limit and fix each aluminum alloy profile. The outer limiting component can fit against the side wall of the aluminum alloy profile, and the clamping component applies a force to the aluminum alloy profile, which can fix the aluminum alloy profile and reduce the probability of displacement during welding. It can fix aluminum alloy profiles of different models. The first adjustment component and the second adjustment component can control the four fixing platforms to move closer or further apart, which can adapt to and fix aluminum alloy doors and windows of different lengths, and has a wider range of applicable scenarios.

[0017] 2. By setting up the four corner positioning components, the first adjustment component and the second adjustment component can adjust the position of the fixing platform so that both ends of the aluminum alloy profile are pressed against the positioning component, which can align the gaps of adjacent aluminum alloy profiles. After alignment and fixing, the positioning component can move to the lower part of the fixing platform. The welding mechanism welds the inner, upper, outer and lower sides of the gap between the two aluminum alloy profiles. The positioning component will not obstruct the welding mechanism, and the gaps on all four sides are welded to ensure the stability of the welding.

[0018] 3. With the rotating mechanism, after welding one corner, the rotating mechanism drives the profile fixing mechanism to rotate, moving the next corner to the lower part of the welding mechanism. The welding mechanism then welds the next corner without repositioning until all four corners are welded. This allows for welding of all four sides of one corner of the aluminum alloy profile for doors and windows in a single operation, without the need for disassembly and repositioning, thus improving production efficiency and welding quality. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 For this application Figure 1 Enlarged structural diagram at point A; Figure 3 For this application Figure 1 Enlarged structural diagram at point B; Figure 4 This is a schematic diagram of the profile fixing mechanism and the rotating mechanism of this application; Figure 5 This is a schematic diagram of the profile fixing mechanism of this application; Figure 6 This is a schematic diagram of the clamping component of this application; Figure 7 This is a schematic diagram of the structure of the four-corner positioning component and the external limiting component in this application; Figure 8 This is a cross-sectional view of the four-corner positioning components and the external limiting component of this application. Figure 9 For this application Figure 8 Enlarged structural diagram at point C; Figure 10 This is a schematic diagram of the welding mechanism of this application; Figure 11 For this application Figure 10 Enlarged structural diagram at point D; Reference numerals: 100, workbench; 200, profile fixing mechanism; 210, fixing platform; 211, notch; 220, limiting component; 221, outer limiting component; 223, clamping component; 2231, base plate; 2232, support platform; 2233, clamping head; 2235, connecting ear; 2236, connecting piece; 2237, operating frame; 2238, connecting plate; 2239, movable plate; 2240, mounting head; 230, first adjusting component; 231, first adjusting frame; 232, second motor; 233, first lead screw; 234, first moving plate; 235, sliding block; 240, second adjusting component; 241, first... 242. Adjusting frame; 243. Third motor; 244. Second lead screw; 245. Second moving plate; 250. Bending plate; 251. Four-corner positioning assembly; 252. Positioning component; 253. Mounting slot; 254. Moving block; 255. Tension spring; 256. Locking component; 257. Cylindrical housing; 258. Baffle; 259. Spring; 250. Locking hole; 300. Welding mechanism; 310. Base; 320. Connecting section; 330. Welding end; 340. Welding head; 350. Gear; 360. Rack; 370. Fourth motor; 400. Rotating mechanism; 410. First motor; 420. Turntable; 500. Aluminum alloy profile. Detailed Implementation

[0020] It should be understood that all descriptions are given for illustrative purposes only and should not be construed as limiting the invention in any way. In this document, the technical terms "first" and "second" are used for distinguishing purposes only and are not intended to indicate their order or relative importance. The technical term "connection (or linking, etc.)" covers a specific component being directly connected to another component and / or indirectly connected to another component. Furthermore, unless otherwise expressly specified and limited, the dimensions, directions, or positional relationships indicated by technical terms such as "length," "width," "height," "upper," "top," and "bottom" are based on the dimensions, orientations, or positional relationships shown in the accompanying drawings and are used only for the convenience and simplicity of describing the invention, and should not be construed as limiting the invention.

[0021] The following combination Figures 1-11 The present invention will be described in further detail below.

[0022] This embodiment discloses an aluminum alloy door and window welding device, such as Figures 1-11As shown, the system includes a workbench 100 fixed to the ground, a profile fixing mechanism 200 for positioning and fixing four aluminum alloy profiles 500 for doors and windows, a welding mechanism 300 for welding the four joints of the gaps between the aluminum alloy profiles 500, and a rotating mechanism 400 for rotating and replacing the corners of the aluminum alloy profiles 500 for doors and windows. The four unwelded aluminum alloy profiles 500 are placed on the profile fixing mechanism 200 for positioning and fixing. The welding mechanism 300 welds the joints of the aluminum alloy profiles 500. After one joint is welded, the rotating mechanism 400 controls the entire profile fixing mechanism 200 to rotate and weld the next joint of the aluminum alloy profile 500. This system can weld all four sides of one corner of the aluminum alloy profile 500 for doors and windows in one go, and the welding of the four corners does not require disassembly and positioning, thus improving production efficiency and welding quality.

[0023] Reference Figure 4 In this embodiment, the rotating mechanism 400 is mounted on the workbench 100. The rotating mechanism 400 is configured to drive the profile fixing mechanism 200 to rotate on the workbench 100, so that the welding mechanism 300 can perform welding operations on all four corners of the aluminum alloy door and window in sequence. The rotating mechanism 400 includes a first motor 410 and a turntable 420. The first motor 410 is fixedly mounted on the bottom of the workbench 100, and the turntable 420 is rotatably mounted on the upper part of the workbench 100. The output shaft of the first motor 410 is connected to the turntable 420 in a transmission connection.

[0024] Thus, after the welding mechanism 300 completes the welding of one corner, the first motor 410 starts, and the first motor 410 drives the turntable 420 to drive the profile fixing mechanism 200 and the fixed aluminum alloy profile 500 to rotate synchronously. The rotation angle can be preset to 90° as required. After the rotation is in place, the first motor 410 stops, ensuring that the position of the aluminum alloy profile 500 is stable when the welding mechanism 300 is working. There is no need to manually rotate the aluminum alloy profile 500, which reduces the intensity of manual operation and improves the safety of operation.

[0025] Reference Figure 1 , Figures 10-11 In this embodiment, the welding mechanism 300 is disposed on one side of the workbench 100. The welding mechanism 300 is configured to perform precise welding on the positioned and fixed aluminum alloy doors and windows. The welding mechanism 300 includes a robotic arm and a welding head 340. The robotic arm includes a base 310, multiple rotatable connecting segments 320 and a welding end 330. The connecting segments 320 are rotatably connected by a rotating shaft. Each connecting segment 320 is provided with an independent drive motor to drive its rotation. The welding end 330 is located at the head of the robotic arm. The welding head 340 is fixedly installed on the welding end 330 by a clamp. The position and welding angle of the welding head 340 can be adjusted according to the posture of the robotic arm.

[0026] A fixed frame is provided at the lower part of the base 310, which is fixedly installed on the ground. The base 310 is slidably installed on the fixed frame. Two guide rails are fixedly installed at the top of the fixed frame. A slider adapted to the guide rail is provided at the bottom of the base 310 and is slidably installed on the guide rail. A rack 360 is fixedly installed inside the fixed frame. A gear 350 adapted to the rack 360 is provided at the lower part of the base 310. A fourth motor 370 is fixedly installed on the base 310. The output shaft of the fourth motor 370 is connected to the gear 350 for transmission. The welding device can move along the axial direction of the fixed frame by means of the gear 350 and the rack 360, so as to move closer to or away from the worktable 100.

[0027] Thus, the robotic arm possesses multi-degree-of-freedom motion capabilities, adapting to the welding needs of aluminum alloy profiles 500 with different specifications and angles, exhibiting strong versatility. Furthermore, the robotic arm's motion trajectory is precise and controllable, avoiding the jitter errors of manual welding and improving the flatness and consistency of the weld. When welding the bottom gap of the aluminum alloy profile 500, the fourth motor is activated, driving the gear 350 to rotate. The gear 350 meshes with the rack 360 on the fixed frame, causing the base 310 to move along the guide rail towards or away from the worktable 100 until the welding head 340 reaches the appropriate working range and then the machine stops, facilitating the welding of the bottom gap of the aluminum alloy profile 500.

[0028] Reference Figure 1 , Figures 4-5In this embodiment, the profile fixing mechanism 200 is rotatably mounted on the upper part of the fixing platform 210. The profile fixing mechanism 200 includes four fixing platforms 210, which are movably supported in the profile fixing mechanism 200. The four corners of the aluminum alloy door and window are placed on the four fixing platforms 210. Each fixing platform 210 is provided with a limit component 220. The profile fixing mechanism 200 is configured to position and fix the four corners of the aluminum alloy door and window. The profile fixing mechanism 200 includes a first adjusting component 230 and a second adjusting component 240. The first adjusting component 230 is fixedly mounted on the turntable 420, and the second adjusting component 240 is movably mounted on the first adjusting component 230. On the turntable 420, the fixed platform 210 is movably mounted on the second adjustment assembly 240. The first adjustment assembly 230 is configured to move the fixed platform 210 along the X-axis, and the second adjustment assembly 240 is configured to move the fixed platform 210 along the Y-axis. The first adjustment assembly 230 and the second adjustment assembly 240 cooperate to control the four fixed platforms 210 to move closer to or further apart from each other. The first adjustment assembly 230 includes a first adjustment frame 231, a second motor 232, a first lead screw 233, and two parallel first moving plates 234. The first adjustment frame 231 is fixedly mounted on the turntable 420, and the first lead screw 233 is rotatably mounted on the inner side of the first adjustment frame 231. The second motor 232 is fixedly installed on the outside of the first adjusting frame 231, and the output shaft of the second motor 232 is connected to the first lead screw 233. The first lead screw 233 is a bidirectional lead screw. Two first moving plates 234 are slidably installed on the upper part of the first adjusting frame 231. Sliding blocks 235 are fixedly connected to the bottom of the two first moving plates 234. The first lead screw 233 passes through the sliding blocks 235. The rotation of the first lead screw 233 can drive the two first moving plates 234 to move closer or further apart. The second adjusting assembly 240 includes a second adjusting frame 241, a third motor 242, a second lead screw 243, and two parallel second moving plates 244. The second adjusting frame 241 is fixedly installed on the first adjusting frame 231. At the upper part of 1, the second lead screw 243 is rotatably mounted on the inner side of the second adjusting frame 241. The axial direction of the second lead screw 243 is perpendicular to the axial direction of the first lead screw 233. The second lead screw 243 is a bidirectional lead screw. Two bending plates 245 are movably mounted on the second lead screw 243. The rotation of the second lead screw 243 can drive the two bending plates 245 to move closer or further away from each other. The end of the bending plate 245 away from the second lead screw 243 is fixedly connected to the second moving plate 244. The bottom of the fixed platform 210 is slidably mounted on the first moving plate 234, and the side of the fixed platform 210 is slidably mounted on the second moving plate 244. Each fixed platform 210 can slide along the X-axis and Y-axis.

[0029] Thus, based on the length and width dimensions of the doors and windows to be welded, the second motor 232 and the third motor 242 are activated by the control system respectively; the first adjustment component 230 drives the fixed platform 210 to move along the X-axis direction, adjusting the spacing of the fixed platform 210 in the X-axis direction; the second adjustment component 240 drives the fixed platform 210 to move along the Y-axis direction, adjusting the spacing of the fixed platform 210 in the Y-axis direction; until the positions of the four fixed platforms 210 are precisely matched with the positions of the four corners of the doors and windows.

[0030] Specifically, the second motor 232 is started, driving the first lead screw 233 to rotate. Since the first lead screw 233 is a bidirectional lead screw, the threads at both ends drive the two sliding blocks 235 and the first moving plate 234 above to move closer or further apart, thereby driving the second adjusting component 240 and the fixed platform 210 mounted on the first moving plate 234 to move along the X-axis until they are adjusted to the preset position, after which the second motor 232 is turned off. The third motor 242 is started, driving the second lead screw 243 to rotate. With the help of the thread transmission of the bidirectional lead screw, the two bending plates 245 and the connected second moving plate 244 move closer or further apart, thereby driving the fixed platform 210 to move along the Y-axis. Combined with the X-axis movement driven by the first adjusting component 230, the fixed platform 210 can be adjusted to any position on the horizontal plane until it is adapted to the corner position of the aluminum alloy profile 500, after which the third motor 242 is turned off. The fixed platform 210 is simultaneously slidably connected to the first moving plate 234 and the second moving plate 244, making the movement process smoother and the load-bearing capacity stronger.

[0031] Reference Figure 3 , Figures 5-6In this embodiment, the limiting component 220 includes an outer limiting member 221 and a clamping member 223. Each fixed platform 210 is provided with two outer limiting members 221 and two clamping members 223. The two outer limiting members 221 are fixedly installed on two adjacent outer surfaces of a fixed platform 210. The inner side of the outer limiting member 221 has a limiting plane. The clamping member 223 includes a base plate 2231, which is L-shaped. The base plate 2231 is provided with mutually perpendicular support platforms 2232 for supporting the aluminum alloy profile 500. The upper part of the support platform 2232 is provided with a clamping head 2233, which is provided with a clamping groove. The clamping groove of the clamping head 2233 and the two support platforms 2232 can form a rectangular clamping space. The base plate 2231 is also provided with an operating part, which is movably connected to the clamping head 2233. Next, the operating part is configured to control the size of the clamping space. Specifically, the operating part is configured as follows: a connecting ear 2235 is fixedly connected to the upper part of the base plate 2231. Two connecting pieces 2236 are provided on both sides of the connecting ear 2235. An operating frame 2237 is rotatably connected to both sides of the connecting pieces 2236. A handle is provided on the top of the operating frame 2237. An opening is provided at the bottom of the operating frame 2237. Two connecting plates 2238 are rotatably provided on the upper part of the opening of the operating frame 2237. A movable plate 2239 is rotatably connected to the rear end of the connecting piece 2236. The movable plate 2239 passes through the opening of the operating frame 2237 and is rotatably connected to the connecting plate 2238. An installation head 2240 is provided at the end of the movable plate 2239 away from the connecting piece 2236. A clamping head 2233 is rotatably mounted on the installation head 2240.

[0032] Thus, the corners of the aluminum alloy profile 500 are placed on the support platform 2232 of the fixed platform 210, so that the two side walls of the aluminum alloy profile 500 are respectively in contact with the limiting planes of the two outer limiting members 221, achieving horizontal positioning; then, the operating part is operated to drive the clamping head 2233 to move downward, so that the clamping groove is in contact with the top of the aluminum alloy profile 500, until the aluminum alloy profile 500 is locked in the clamping space, ensuring that the aluminum alloy profile 500 will not move up and down or left and right during the welding process. The external limiting component 221 fits against the side wall of the aluminum alloy profile 500, enabling precise horizontal positioning of the aluminum alloy profile 500 and preventing it from shifting. The design of the L-shaped base plate 2231 and the support platform 2232 provides stable support for the bottom of the aluminum alloy profile 500, ensuring that it is placed stably. The clamping groove of the clamping head 2233 and the support platform 2232 form a rectangular clamping space, which is suitable for aluminum alloy profiles with rectangular cross-sections, making the clamping more stable.

[0033] Reference Figure 2 , Figure 4 , Figures 7-9In this embodiment, a notch 211 is provided at the outer corner of the fixed platform 210, and a four-corner positioning assembly 250 is provided on the outer side of the fixed platform 210. The four-corner positioning assembly 250 includes four positioning members 251. One positioning member 251 is provided at the outer corner of each fixed platform 210. The positioning member 251 has a first positioning surface and a second positioning surface. The first positioning surface is in the same plane as the limiting plane of its adjacent outer limiting member 221, and the second positioning surface is in the same plane as the limiting plane of its adjacent outer limiting member 221. Both ends of the positioning member 251 can be slidably installed in its adjacent outer limiting member 221. The positioning member 251 can move along a direction perpendicular to the upper surface of the fixed platform 210.

[0034] Two outer limiting members 221 are provided with mounting grooves 252 on the side near the positioning member 251. A movable block 253 adapted to the mounting groove 252 is fixedly connected to the positioning member 251. The movable block 253 is disposed within the mounting groove 252 and can move up and down along the mounting groove 252. A tension spring 254 is fixedly installed on the outer limiting member 221 at the bottom of the mounting groove 252. One end of the tension spring 254 near the movable block 253 is fixedly connected to the movable block 253. When the upper surface of the positioning member 251 is higher than the upper surface of the fixed platform 210, the tension spring 254 is in a stretched state and has a tendency to pull the movable block 253 downwards. One of the outer limiting members 221 on each fixed platform 210 is provided with a locking member 255. One end of the locking member 255 enters the mounting groove 252 of the outer limiting member 221. A cylindrical housing 256 is fixedly installed on the outside of the 1. A baffle 257 is provided on the locking member 255. The baffle 257 is disposed inside the cylindrical housing 256 and can move along the axial direction. A spring 258 is provided inside the cylindrical housing 256. The spring 258 is disposed between the baffle 257 and the side away from the outer limit member 221. The spring 258 is always in a compressed state. The locking mechanism has a tendency to move into the mounting groove 252 by means of the spring 258. A locking hole 259 adapted to the locking member 255 is provided on the moving block 253. When the moving block 253 is at the uppermost part of the mounting groove 252, the locking member 255 and the locking hole 259 are coaxial. The locking member 255 can enter the locking hole 259 to lock the positioning member 251. At this time, the upper surface of the moving block 253 is higher than the upper surface of the fixed platform 210.

[0035] Thus, before the aluminum alloy profile 500 is loaded, the positioning component 251 is pulled upwards so that its upper surface is higher than the upper surface of the fixed platform 210. At this time, the first positioning surface and the second positioning surface of the positioning component 251 form a complete limiting structure with the limiting plane of the outer limiting component 221. The aluminum alloy profile 500 is placed on the support platform 2232 so that the two side walls of the aluminum alloy profile 500 simultaneously conform to the limiting plane of the outer limiting component 221 and the positioning surface of the positioning component 251, achieving precise positioning of the corners. After the aluminum alloy profile 500 is fixed, the positioning component 251 can be unlocked and moved downwards to a position lower than the surface of the fixed platform 210, so that the positioning component 251 separates from the outer surface of the aluminum alloy profile 500. The welding head 340 can then weld the outer surface of the aluminum alloy profile 500 to prevent... When interference is required, if the positioning component 251 is in a high position, pull the positioning component 251 upward to move the moving block 253 along the mounting groove 252. When the moving block 253 reaches the top, the locking component 255 automatically springs into the locking hole 259 of the moving block 253 under the elastic force of the spring 258, locking the positioning component 251 in a high position. When it is necessary to lower the positioning component 251, pull the locking component 255 outward to disengage the locking component 255 from the locking hole 259. Under the tension of the tension spring 254, the moving block 253 moves the positioning component 251 downward along the mounting groove 252 until the upper surface of the positioning component 251 is lower than the surface of the fixed table 210. At this time, the welding head 340 can move from the notch 211 of the worktable 100 to the bottom of the corner of the aluminum alloy profile 500 to weld the gap.

[0036] It should be understood that this solution also includes a controller. The location of the controller is set by the operator according to the actual situation during operation. The controller is a common existing technology in electrical engineering and is not shown in the figure here. The controller is used to control the electrical components used in this solution, including but not limited to the first motor 410, the second motor 232, the third motor 242, the fourth motor 370, the entire robotic arm, and the drive motor. The controller is an Intel processor, AMD processor, PLC controller, ARM processor, or microcontroller. It is also used in conjunction with a motherboard, memory module, storage medium, and power supply. The power supply is AC mains power.

[0037] The implementation principle of this embodiment is as follows: Before placing the aluminum alloy profile 500, the rotating mechanism 400 and the robotic arm of the welding mechanism 300 are reset to their origins. The drive motors of each joint are run under no-load to confirm that the multi-degree-of-freedom movement is smooth. Based on the length and width of the aluminum alloy door and window to be welded, parameters are input through the controller. The controller calculates the target spacing of the four aluminum alloy profile 500 support platforms. The operator can confirm the distribution of the support platforms through the preview interface. If adjustments are needed, the fixed platform 210 can be manually adjusted on the X and Y axes until it matches the actual size requirements of the door and window corners.

[0038] Four aluminum alloy profiles 500 are placed between four fixed platforms 210. The operator manually pulls the positioning component 251 upwards until the locking component 255 automatically enters the locking hole 259, locking the positioning component 251 in the high position. The first positioning surface and the second positioning surface of the positioning component 251 are on the same plane as the limiting plane of the outer limiting component 221, forming a complete rectangular limiting structure.

[0039] Start the second motor 232 and the third motor 242: The second motor 232 drives the first bidirectional lead screw to rotate, which drives the two first moving plates 234 to move synchronously along the X-axis, adjusting the distance between the aluminum alloy profile 500 fixed platform 210 on the X-axis; the third motor 242 drives the second bidirectional lead screw to rotate, which drives the two second moving plates 244 to move synchronously along the Y-axis, adjusting the distance between the aluminum alloy profile 500 fixed platform 210 on the Y-axis. After adjustment, the motor automatically stops, the fixed platform 210 is precisely positioned in the preset position, and each end of the aluminum alloy profile 500 abuts against the positioning part 251. At this time, operate the clamping part 223 until the clamping groove of the clamping head 2233 fits against the top surface of the aluminum alloy profile 500. At this time, the support platform 2232 and the clamping head 2233 form a rectangular clamping space, which firmly fixes the aluminum alloy profile 500 on the support platform to prevent displacement during welding. Repeat the operation of the clamping parts 223 of the four support platforms to complete the clamping and fixing of all the corners of the aluminum alloy profile 500.

[0040] After fixing, pull out the locking part, and the positioning part 251 returns to its original position under the tension of the tension spring 254. At this time, the highest point of the positioning part 251 is lower than the lowest point of the aluminum alloy profile 500, and the welding head 340 can extend into the lower part of the notch 211 on the outside of the fixing platform 210 to realize the welding of the lower part of the weld of the aluminum alloy profile 500. The positioning part 251 leaves the corner of the aluminum alloy profile 500, giving space for the welding of the outer side of the gap.

[0041] According to preset parameters, the control system controls the robotic arm of the welding mechanism 300 to start: the drive motors of each joint of the robotic arm work together to adjust the spatial position and angle of the welding head 340 so that the welding head 340 is aligned with the first seam on the inner side of the corner of the aluminum alloy profile 500, and then welds the upper seam of the aluminum alloy profile 500. After that, the outer side seam of the aluminum alloy profile 500 is welded, and the robotic arm directly adjusts the welding head 340 to a horizontal welding posture; finally, the bottom seam is welded, and the fourth motor 370 is started, which drives the robotic arm base 310 through the gear 350 and rack 360. Move along the guide rail toward the worktable 100. The welding head 340 extends into the bottom of the aluminum alloy profile 500 through the notch 211 on the outside of the worktable 100. Adjust to a vertical welding posture for welding. After all welding is completed, the controller starts the first motor 410 to drive the turntable 420 to rotate the profile fixing mechanism 200 and the aluminum alloy profile 500 by 90°. After it reaches the position, the first motor 410 stops. Weld the second corner in one revolution. Repeat the above operation until all aluminum alloy doors and windows are welded. Release the clamping part 223 and remove the welded aluminum alloy doors and windows to complete the entire welding operation.

[0042] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An aluminum alloy door and window welding device, comprising a workbench (100) configured as a support; characterized in that, Also includes: A profile fixing mechanism (200) is rotatably mounted on the upper part of a fixing platform (210). The profile fixing mechanism (200) includes four fixing platforms (210), which are movably supported in the profile fixing mechanism (200). The four corners of the aluminum alloy door and window are placed on the four fixing platforms (210). Each fixing platform (210) is provided with a limit component (220). The profile fixing mechanism (200) is configured to position and fix the four corners of the aluminum alloy door and window. A welding mechanism (300) is disposed on one side of a workbench (100) and is configured to weld aluminum alloy doors and windows that have been positioned and fixed. A rotating mechanism (400) is mounted on a workbench (100) and is configured to drive a profile fixing mechanism (200) to rotate on the workbench (100), thereby enabling the welding mechanism (300) to weld all four corners of the aluminum alloy doors and windows.

2. The aluminum alloy door and window welding device according to claim 1, characterized in that, The rotating mechanism (400) includes a first motor (410) and a turntable (420). The first motor (410) is fixedly installed at the bottom of the workbench (100), and the turntable (420) is rotatably installed on the upper part of the workbench (100). The output shaft of the first motor (410) is connected to the turntable (420) in a transmission connection.

3. The aluminum alloy door and window welding device according to claim 2, characterized in that, The profile fixing mechanism (200) includes a first adjusting component (230) and a second adjusting component (240). The first adjusting component (230) is fixedly mounted on the turntable (420), and the second adjusting component (240) is movably mounted on the first adjusting component (230). The fixed platform (210) is movably mounted on the second adjusting component (240). The first adjusting component (230) is configured to drive the fixed platform (210) to move along the X-axis, and the second adjusting component (240) is configured to drive the fixed platform (210) to move along the Y-axis. The first adjusting component (230) and the second adjusting component (240) cooperate to control the four fixed platforms (210) to move closer to or further away from each other.

4. The aluminum alloy door and window welding device according to claim 3, characterized in that, The first adjustment assembly (230) includes a first adjustment frame (231), a second motor (232), a first lead screw (233), and two parallel first moving plates (234). The first adjustment frame (231) is fixedly mounted on the turntable (420). The first lead screw (233) is rotatably mounted on the inner side of the first adjustment frame (231). The second motor (232) is fixedly mounted on the outer side of the first adjustment frame (231), and the output shaft of the second motor (232) is connected to the first lead screw (233) for transmission. The first lead screw (233) is a bidirectional lead screw. The two first moving plates (234) are slidably mounted on the upper part of the first adjustment frame (231). The bottom of the two first moving plates (234) is fixedly connected to a sliding block (235). The first lead screw (233) passes through the sliding block (235). The rotation of the first lead screw (233) can drive the two first moving plates (234) to move closer or further away from each other.

5. The aluminum alloy door and window welding device according to claim 4, characterized in that, The second adjustment assembly (240) includes a second adjustment frame (241), a third motor (242), a second lead screw (243), and two parallel second moving plates (244). The second adjustment frame (241) is fixedly installed on the upper part of the first adjustment frame (231). The second lead screw (243) is rotatably installed on the inner side of the second adjustment frame (241). The axial direction of the second lead screw (243) is perpendicular to the axial direction of the first lead screw (233). The second lead screw (243) is a bidirectional lead screw. 43) Two bending plates (245) are movably mounted on the upper part. The rotation of the second lead screw (243) can drive the two bending plates (245) to move closer or further away from each other. The end of the bending plate (245) away from the second lead screw (243) is fixedly connected to the second moving plate (244). The bottom of the fixed platform (210) is slidably mounted on the first moving plate (234), and the side of the fixed platform (210) is slidably mounted on the second moving plate (244). Each fixed platform (210) can slide along the X-axis and Y-axis.

6. The aluminum alloy door and window welding device according to claim 1, characterized in that, The limiting assembly (220) includes an outer limiting member (221) and a clamping member (223). Each fixed platform (210) is provided with two outer limiting members (221) and two clamping members (223). The two outer limiting members (221) are fixedly installed on two adjacent outer surfaces of a fixed platform (210). The inner side of the outer limiting member (221) has a limiting plane. The clamping member (223) includes a base plate (2231). The base plate (2231) is L-shaped and is provided with corresponding... The support platform (2232) is perpendicular to each other for supporting the aluminum alloy profile (500). The upper part of the support platform (2232) is provided with a movable clamping head (2233). The clamping head (2233) is provided with a clamping groove. The clamping groove of the clamping head (2233) and the two support platforms (2232) can form a rectangular clamping space. The base plate (2231) is also provided with an operating part. The operating part is movably connected to the clamping head (2233). The operating part is configured to control the size of the clamping space.

7. The aluminum alloy door and window welding device according to claim 6, characterized in that, A notch (211) is provided at the outer corner of the fixed platform (210). A four-corner positioning assembly (250) is provided on the outer side of the fixed platform (210). The four-corner positioning assembly (250) includes four positioning members (251). One positioning member (251) is provided at the outer corner of each fixed platform (210). The positioning member (251) has a first positioning surface and a second positioning surface. The first positioning surface is in the same plane as the limiting plane of its adjacent outer limiting member (221). The second positioning surface is in the same plane as the limiting plane of its adjacent outer limiting member (221). Both ends of the positioning member (251) can be slidably installed in its adjacent outer limiting member (221). The positioning member (251) can move along a direction perpendicular to the upper surface of the fixed platform (210).

8. The aluminum alloy door and window welding device according to claim 7, characterized in that, Two of the outer limiting members (221) are provided with mounting grooves (252) on the side near the positioning member (251). A movable block (253) adapted to the mounting groove (252) is fixedly connected to the positioning member (251). The movable block (253) is disposed in the mounting groove (252) and can move up and down along the mounting groove (252). A tension spring (254) is fixedly installed on the outer limiting member (221) at the bottom of the mounting groove (252). The tension spring (254) is close to the movable block (251). One end of the positioning member (253) is fixedly connected to the moving block (253). When the upper surface of the positioning member (251) is higher than the upper surface of the fixed platform (210), the tension spring (254) is in a stretched state and has a tendency to pull the moving block (253) downward. A locking member (255) is provided on one of the outer limiting members (221) on each fixed platform (210). One end of the locking member (255) enters the mounting groove (252) of the outer limiting member (221). A cylindrical housing (256) is fixedly mounted on the outside of the locking component (221). A baffle (257) is provided on the locking component (255). The baffle (257) is disposed inside the cylindrical housing (256) and can move axially. A spring (258) is provided inside the cylindrical housing (256). The spring (258) is disposed between the baffle (257) and the side away from the outer limiting component (221). The spring (258) is always in a compressed state. The locking mechanism is secured by the spring (257). 58) It has a tendency to always move into the mounting groove (252). The moving block (253) is provided with a locking hole (259) that is adapted to the locking member (255). When the moving block (253) is at the uppermost part of the mounting groove (252), the locking member (255) and the locking hole (259) are coaxial. The locking member (255) can enter the locking hole (259) to lock the positioning member (251). At this time, the upper surface of the moving block (253) is higher than the upper surface of the fixed platform (210).

9. The aluminum alloy door and window welding device according to any one of claims 1-8, characterized in that, The welding mechanism (300) includes a robotic arm and a welding head (340). The robotic arm includes a base (310), multiple rotatable connecting sections (320), and a welding end (330). The welding end (330) is located at the head of the robotic arm, and the welding head (340) is fixedly installed on the welding end (330).

10. The aluminum alloy door and window welding device according to claim 9, characterized in that, The base (310) is provided with a fixed frame at its lower part. The fixed frame is fixedly installed on the ground. The base (310) is slidably installed on the fixed frame. A rack (360) is fixedly installed inside the fixed frame. A gear (350) adapted to the rack (360) is provided at the lower part of the base (310). A fourth motor (370) is fixedly installed on the base (310). The output shaft of the fourth motor (370) is connected to the gear (350) for transmission. The welding device can move along the axial direction of the fixed frame by means of the gear (350) and rack (360) cooperation, so as to move closer to or away from the worktable (100).

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