Aluminum alloy door and window metal aluminum plate welding equipment and method

Abstract

The invention relates to the technical field of welding, in particular to aluminum alloy door and window metal aluminum plate welding equipment and method. Comprising a base, a supporting frame, a welding mover, a welding device, a first clamping table, a first rotating plate, a lifter, a second clamping table, a second rotating plate and a second mover, and the welding mover, the welding device, the first clamping table, the first rotating plate, the lifter, the second clamping table, the second rotating plate and the second mover are fixedly connected with the base and located at the top of the base; the second mover is arranged on the supporting frame in a sliding mode, the second clamping table is arranged on the second mover, the second rotating plate is rotationally arranged on the second clamping table, the lifter is arranged on one side of the supporting frame in a sliding mode, the first rotating plate is rotationally arranged on the lifter, the first clamping table is arranged on the first rotating plate, and the welding mover is arranged on one side of the supporting frame. And the welding device is connected with the welding mover. Therefore, the door and window frame can be automatically turned over to be welded after one side is welded, and the working efficiency is improved.

Description

Technical Field

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

[0002] Welding aluminum alloy doors, windows, and metal sheets is a common manufacturing process, primarily used to connect aluminum alloy profiles and plates to ensure structural stability and aesthetics. Common welding methods include gas shielded inert gas welding (TIG welding) and metal inert gas welding (MIG welding). TIG welding uses a non-consumable tungsten electrode and inert gas shielding, making it suitable for welding thin plates and delicate components, achieving high weld quality. MIG welding, on the other hand, uses a continuously fed wire as both electrode and filler material, resulting in high welding speeds and suitable for welding thick plates and long weld seams.

[0003] After the existing aluminum plate welding equipment completes welding the two corners on one side of the door and window, it is necessary to manually flip the door and window and weld the two corners on the other side. This requires manual positioning and loading, and the work efficiency is low. Summary of the Invention

[0004] The purpose of the present invention is to provide an aluminum alloy door and window metal aluminum plate welding device and method, which aims to automatically flip the door and window frame and then weld it again after one side is welded, thereby improving work efficiency.

[0005] To achieve the above-mentioned objectives, in the first aspect, the present invention provides a metal aluminum plate welding device for aluminum alloy doors and windows, comprising a base and a support frame, wherein the support frame is fixedly connected to the base and is located on the top of the base, and further comprising a welding mover, a welder, a first clamping platform, a first rotating plate, a lifter, a second clamping platform, a second rotating plate and a second mover, wherein the second mover is slidably arranged on the support frame, the second clamping platform is arranged on the second mover, the second rotating plate is rotatably arranged on the second clamping platform, the lifter is slidably arranged on one side of the support frame, the first rotating plate is rotatably arranged on the lifter, the first clamping platform is arranged on the first rotating plate, the welding mover is arranged on one side of the support frame, and the welder is connected to the welding mover.

[0006] The welding moving module includes a transverse mover and a longitudinal mover, the transverse mover is arranged on the support frame, the longitudinal mover is slidably arranged on the transverse mover, and the welder is arranged on the longitudinal mover.

[0007] The first clamping platform includes a clamping platform body, a sliding block and a pressing cylinder. The sliding block is slidably arranged on the clamping platform body, and the output end of the pressing cylinder is connected to the sliding block.

[0008] Among them, the lifter includes a lifting cylinder, a mounting plate and a support spring. The lifting cylinder is fixed on one side of the support frame. The mounting plate is connected to the output end of the lifting cylinder. The support spring is arranged between the lifting cylinder and the mounting plate. The first rotating plate is rotatably arranged on the mounting plate.

[0009] Among them, the aluminum alloy door and window metal aluminum plate welding equipment also includes an alignment plate, which includes two alignment plate bodies and an adjusting screw. The two alignment plate bodies are slidably arranged on both sides of the support frame. The adjusting screw has two opposite sections of threads, and the adjusting screw is threadedly connected to the two alignment plate bodies.

[0010] Wherein, the alignment plate further includes a grinding structure, which is arranged on the alignment plate body and is used to grind the weld after welding.

[0011] The grinding structure includes a grinding wheel, a grinding motor and a grinding cylinder. The grinding cylinder is fixed on the alignment plate body. The grinding motor is arranged on the output end of the grinding cylinder. The grinding wheel is connected to the output end of the grinding motor.

[0012] Wherein, the grinding structure further includes a return spring, and the return spring is arranged between the grinding cylinder and the grinding motor.

[0013] In a second aspect, the present invention further provides a method for welding aluminum plates for aluminum alloy doors and windows, comprising: placing two sides of an aluminum alloy door and window frame on a first clamping platform and a second clamping platform for fixing;

[0014] Start the welding mover to drive the welder to the location of the weld for welding;

[0015] After welding is completed, the first clamping platform is lifted by the lifter, and at the same time, the second mover drives the second clamping platform to move, so that the aluminum alloy door and window frames are tilted and flipped;

[0016] After the second clamping platform moves to the other end of the support frame, the lifter moves downward to turn the aluminum alloy door and window frame 180 degrees;

[0017] Start the welding mover again to drive the welder to the position of the weld for welding.

[0018] The present invention provides a metal aluminum plate welding device and method for aluminum alloy doors and windows. The base serves as the basic supporting structure of the entire device. The base not only provides a stable installation platform, but also plays the role of dispersing and bearing the weight of the equipment, ensuring the stability of the equipment during the welding process.

[0019] The support frame is fixedly connected to the base and is located on the top of the base. The support frame is the main frame structure of the equipment, used to support and fix other components, such as welding movers, lifters, etc., to ensure that all components can operate in a coordinated manner.

[0020] The welding mover is mounted on one side of the support frame. It moves along a predetermined path on the track, driving the welder to the designated welding position. By precisely controlling the movement trajectory of the welding mover, it is possible to achieve precise welding of complex structural parts.

[0021] The welding machine is connected to the welding mover and is the key component for performing the actual welding operation. It can be configured with corresponding welding heads according to different welding requirements, such as TIG or MIG welding guns, to adapt to different types of aluminum alloy materials and welding processes.

[0022] When in use, the doors and windows are placed on the support frame, and the two sides are fixed by the first clamp and the second clamp, and then welded by moving the welder. After the welding is completed, the lifter is started to drive the first clamp to move up, and at the same time the second mover drives the second clamp to slide, thereby driving the door frame to tilt until the second clamp moves past the position of the lifter, and the lifter descends to complete the flipping of the door and window frame. The first rotating plate and the second rotating plate allow the door and window frame to rotate.

[0023] Through the synergistic effect of the above components, this welding equipment can effectively complete the task of welding aluminum alloy doors and windows. It can not only achieve precise positioning and fixation of the workpiece, but also flexibly adjust the position of the welder according to the welding requirements to ensure welding quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural diagram of a metal aluminum plate welding device for aluminum alloy doors and windows of the present invention.

[0026] Figure 2 This is the right side structural diagram of the aluminum alloy door and window metal aluminum plate welding equipment of the present invention.

[0027] Figure 3 This is a left side structural diagram of a metal aluminum plate welding device for aluminum alloy doors and windows of the present invention.

[0028] Figure 4 yes Figure 3A partial enlargement of detail A.

[0029] Figure 5 The present invention is a flow chart of a method for welding aluminum plates for aluminum alloy doors and windows.

[0030] Base 101, support frame 102, welding mover 103, welder 104, first clamping platform 105, first rotating plate 106, lifter 107, second clamping platform 108, second rotating plate 109, second mover 110, transverse mover 111, longitudinal mover 112, clamping platform body 113, sliding block 114, clamping cylinder 115, lifting cylinder 116, mounting plate 117, support spring 118, alignment plate 119, alignment plate body 120, adjusting screw 121, grinding structure 122, grinding wheel 123, grinding motor 124, grinding cylinder 125, return spring 126, lead screw 127, slider 128, drive motor 129. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0033] First embodiment

[0034] See also Figures 1 to 4The present invention provides a metal aluminum plate welding equipment for aluminum alloy doors and windows, including a base 101 and a support frame 102, wherein the support frame 102 is fixedly connected to the base 101 and is located on the top of the base 101, and also includes a welding mover 103, a welder 104, a first clamping platform 105, a first rotating plate 106, a lifter 107, a second clamping platform 108, a second rotating plate 109 and a second mover 110, the second mover 110 is slidably arranged on the support frame 102, the second clamping platform 108 is arranged on the second mover 110, the second rotating plate 109 is rotatably arranged on the second clamping platform 108, the lifter 107 is slidably arranged on one side of the support frame 102, the first rotating plate 106 is rotatably arranged on the lifter 107, the first clamping platform 105 is arranged on the first rotating plate 106, the welding mover 103 is arranged on one side of the support frame 102, and the welder 104 is connected to the welding mover 103.

[0035] In this embodiment, the base 101 serves as the basic supporting structure of the entire device. The base 101 not only provides a stable installation platform, but also plays the role of dispersing and bearing the weight of the device, thereby ensuring the stability of the device during the welding process.

[0036] The support frame 102 is fixedly connected to the base 101 and is located on the top of the base 101. The support frame 102 is the main frame structure of the equipment, used to support and fix other components, such as the welding mover 103, the lifter 107, etc., to ensure that all components can operate in a coordinated manner.

[0037] The welding mover 103 is mounted on one side of the support frame 102. The welding mover 103 can move along a predetermined path on the track, driving the welder 104 to the designated welding position. By precisely controlling the movement trajectory of the welding mover 103, precise welding of complex structural parts can be achieved.

[0038] The welder 104 is connected to the welding mover 103 and is a key component for performing the actual welding operation. It can be configured with corresponding welding heads, such as TIG or MIG welding guns, according to different welding requirements to adapt to different types of aluminum alloy materials and welding processes.

[0039] When in use, the doors and windows are placed on the support frame 102, and the two sides are fixed by the first clamping platform 105 and the second clamping platform 108, and then the welding is carried out by moving the welder 104. After the welding is completed, the lifter 107 is started to drive the first clamping platform 105 to move upward, and at the same time the second mover 110 drives the second clamping platform 108 to slide, thereby driving the door frame to tilt until the second clamping platform 108 moves past the position of the lifter 107, and the lifter 107 descends to complete the flipping of the door and window frame. The first rotating plate 106 and the second rotating plate 109 allow the door and window frame to rotate.

[0040] Through the synergistic effect of the above components, the welding equipment can effectively complete the task of welding aluminum plates for aluminum alloy doors and windows. It can not only accurately position and fix the workpiece, but also flexibly adjust the position of the welder 104 according to welding requirements to ensure welding quality and efficiency.

[0041] The welding moving module includes a transverse mover 111 and a longitudinal mover 112 . The transverse mover 111 is disposed on the support frame 102 . The longitudinal mover 112 is slidably disposed on the transverse mover 111 . The welder 104 is disposed on the longitudinal mover 112 .

[0042] The transverse mover 111 is fixedly mounted on the support frame 102. As the basis of the welding mobile module, it provides the welder 104 with the ability to move in the horizontal direction. Driven by a motor or manually adjusted, the transverse mover 111 can slide smoothly along the track on the support frame 102 to ensure that the welder 104 can accurately reach the horizontal coordinates of the required welding position. The longitudinal mover 112 is slidably set on the transverse mover 111 to provide the welder 104 with the ability to move in the vertical direction. In this way, through the combined use of the transverse mover 111 and the longitudinal mover 112, the welder 104 can move freely in three-dimensional space and accurately align with the part that needs to be welded. The longitudinal mover 112 can also be adjusted electrically or manually to adapt to welding requirements at different heights.

[0043] The welder 104 is mounted on a longitudinal mover 112 , and changes height as the longitudinal mover 112 moves up and down, and also changes position as the transverse mover 111 moves left and right.

[0044] The first clamping platform 105 includes a clamping platform body 113 , a sliding block 114 and a pressing cylinder 115 . The sliding block 114 is slidably disposed on the clamping platform body 113 , and an output end of the pressing cylinder 115 is connected to the sliding block 114 .

[0045] The clamping platform 113 serves as the foundation for the first clamping platform 105. It provides a platform for securing and supporting the sliding block 114. It is typically constructed from high-strength materials to ensure stability even under significant pressure. The sliding block 114 slides on the clamping platform 113 and can move back and forth along the track of the clamping platform 113 to adjust the clamping position. The design of the sliding block 114 typically includes anti-slip grooves or patterns to enhance its grip on the aluminum alloy sheet.

[0046] The output end of the clamping cylinder 115 is connected to the sliding block 114. Driven by air pressure, the sliding block 114 is pushed against the aluminum alloy sheet, achieving a secure clamp. The stroke and force of the clamping cylinder 115 can be adjusted as needed to ensure sufficient clamping force for sheets of varying thicknesses and shapes.

[0047] The lifter 107 includes a lifting cylinder 116, a mounting plate 117 and a support spring 118. The lifting cylinder 116 is fixed on one side of the support frame 102. The mounting plate 117 is connected to the output end of the lifting cylinder 116. The support spring 118 is arranged between the lifting cylinder 116 and the mounting plate 117. The first rotating plate 106 is rotatably arranged on the mounting plate 117.

[0048] The lifting cylinder 116 is fixedly mounted on one side of the support frame 102 and is the core component for realizing the lifting function. Driven by air pressure, the lifting cylinder 116 can drive the mounting plate 117 to move up and down, thereby adjusting the height of the first rotating plate 106.

[0049] The mounting plate 117 is connected to the output end of the lifting cylinder 116 and moves up and down with the extension and contraction of the lifting cylinder 116. The first rotating plate 106 is mounted on the mounting plate 117, and the first rotating plate 106 can be positioned at different heights by the driving of the lifting cylinder 116.

[0050] The support spring 118 is provided between the lifting cylinder 116 and the mounting plate 117 to play a role of buffering and shock absorption. When the lifting cylinder 116 drives the mounting plate 117 to move up and down, the support spring 118 can absorb part of the impact force, reduce vibration, and ensure the smooth movement of the first rotating plate 106.

[0051] The first rotating plate 106 is rotatably mounted on the mounting plate 117 and can rotate about a central axis to adjust the angle of the aluminum alloy plate. By rotating the first rotating plate 106, the plate can be adjusted to the most suitable angle for welding, thereby improving welding quality and efficiency.

[0052] The aluminum alloy door and window metal aluminum plate welding equipment also includes an alignment plate 119, which includes two alignment plate bodies 120 and an adjusting screw 121. The two alignment plate bodies 120 are slidably arranged on both sides of the support frame 102, and the adjusting screw 121 has two opposite sections of threads. The adjusting screw 121 is threadedly connected to the two alignment plate bodies 120.

[0053] The alignment plate 119 is composed of two alignment plate bodies 120, which are slidably disposed on both sides of the support frame 102. The alignment plate bodies 120 are usually made of high-strength materials to ensure that they can remain stable even when subjected to large pressure.

[0054] The adjustment screw 121 is a key component connecting the two alignment plate bodies 120. It features two opposing threads, meaning that rotating the screw 121 causes the two alignment plate bodies 120 to move in opposite directions. This allows for fine adjustment of the distance between the two alignment plate bodies 120, ensuring precise alignment of the aluminum alloy sheets before welding.

[0055] The alignment plate 119 further includes a grinding structure 122 . The grinding structure 122 is disposed on the alignment plate body 120 and is used to grind the weld after welding.

[0056] In order to grind the weld after welding, the alignment plate 119 is further equipped with a set of grinding structures 122 to improve the surface quality and aesthetics of the weld.

[0057] The grinding structure 122 includes a grinding wheel 123, a grinding motor 124 and a grinding cylinder 125. The grinding cylinder 125 is fixed on the alignment plate body 120. The grinding motor 124 is arranged on the output end of the grinding cylinder 125. The grinding wheel 123 is connected to the output end of the grinding motor 124.

[0058] The grinding wheel 123 is a component that directly contacts the weld and is used to remove uneven parts and oxide layers on the weld surface. The grinding wheel 123 is usually made of wear-resistant material to ensure stable performance after long-term use.

[0059] The grinding motor 124 is the power source that drives the grinding wheel 123. Mounted on the output end of the grinding cylinder 125, the grinding motor 124 rotates at high speed to drive the grinding wheel 123. The power and speed of the grinding motor 124 can be adjusted to accommodate welds of varying thicknesses and materials.

[0060] The grinding cylinder 125 is fixed to the alignment plate body 120 and is used to control the up and down movement of the grinding motor 124. Driven by air pressure, the grinding cylinder 125 can accurately position the grinding motor 124 and the grinding wheel 123 on the weld to ensure the stability and consistency of the grinding process.

[0061] The grinding structure 122 further includes a return spring 126 , which is disposed between the grinding cylinder 125 and the grinding motor 124 .

[0062] A return spring 126 is positioned between the polishing cylinder 125 and the polishing motor 124, providing both a buffer and a reset function. When the polishing cylinder 125 drives the polishing motor 124 downward, the return spring 126 absorbs some of the impact, reducing vibration and ensuring a smooth polishing process. Furthermore, after polishing is complete, the return spring 126 helps the polishing motor 124 quickly return to its initial position, improving work efficiency.

[0063] The second mover 110 includes a screw 127, a slider 128 and a drive motor 129. The screw 127 is rotatably arranged on one side of the support frame 102. The slider 128 is threadedly connected to the screw 127 and slidingly connected to the support frame 102. The output end of the drive motor 129 is connected to the screw 127.

[0064] The lead screw 127 is rotatably arranged on one side of the support frame 102 and is a main transmission component of the second mover 110. By rotating the lead screw 127, the accurate movement of the slider 128 can be achieved.

[0065] The slider 128 is threadedly connected to the lead screw 127 and is slidably connected to the support frame 102. The movement range and accuracy of the slider 128 directly affect the position adjustment of the second clamping table 108, thereby affecting the welding quality.

[0066] The output end of the drive motor 129 is connected to the lead screw 127, and the rotation of the motor drives the lead screw 127 to rotate, thereby driving the slider 128 to move along the track of the support frame 102. The drive motor 129 generally has the characteristics of high precision and high torque, ensuring smooth movement and precise positioning of the slider 128.

[0067] Through this design, the aluminum alloy door and window metal sheet welding equipment not only achieves precise welding of aluminum alloy sheets, but also efficiently polishes the welds after welding, ensuring the high quality and aesthetics of the final product. Furthermore, the various components of the equipment work together to improve overall reliability and ease of operation.

[0068] Second embodiment

[0069] See also Figure 5The present invention also provides a method for welding aluminum plates for aluminum alloy doors and windows, comprising:

[0070] S201: Place both sides of the aluminum alloy door and window frame on the first clamping platform 105 and the second clamping platform 108 respectively for fixing;

[0071] Place the two sides of the aluminum alloy door and window frame onto the first clamping platform 105 and the second clamping platform 108, respectively. These platforms, located on either side of the support frame 102, ensure the aluminum alloy door and window frame is stably fixed to the equipment. Use the clamping devices (such as the clamping cylinder 115 and the sliding block 114) on the first and second clamping platforms 105 and 108 to securely hold the two sides of the aluminum alloy door and window frame in place. This ensures that the aluminum alloy door and window frame does not shift or loosen during the welding process, thereby ensuring weld quality.

[0072] S202 starts the welding mover 103 to drive the welder 104 to the position of the weld to perform welding;

[0073] The welding mover 103 is activated, causing the welder 104 to move along a predetermined path to the initial position of the weld seam. The welding mover 103 can precisely move in both the horizontal and vertical directions, ensuring that the welder 104 is accurately aligned with the weld seam. The welder 104 is activated and welding is performed according to preset welding parameters (such as current, voltage, and welding speed). During the welding process, the welder 104 moves along the weld seam to complete the initial weld.

[0074] After the welding is completed in step S203, the first clamping platform 105 is lifted by the lifter 107, and at the same time, the second mover 110 drives the second clamping platform 108 to move, so that the aluminum alloy door and window frame is tilted and flipped;

[0075] After welding is completed, the lifter 107 is started to lift the first clamping platform 105. The lifter 107 is driven by a cylinder and can smoothly lift the first clamping platform 105 to a certain height. At the same time, the second mover 110 is started to move the second clamping platform 108 along the track of the support frame 102. The second mover 110 can accurately control the moving distance and speed of the second clamping platform 108 through the cooperation of the lead screw 127 and the slider 128. As the first clamping platform 105 is lifted and the second clamping platform 108 moves, the aluminum alloy door and window frames will gradually tilt and flip. This process requires precise control to ensure that the aluminum alloy door and window frames will not be damaged during the flipping process.

[0076] S204 After the second clamping platform 108 moves to the other end of the support frame 102, the lifter 107 moves downward to turn the aluminum alloy door and window frame 180 degrees;

[0077] When the second clamping platform 108 moves to the other end of the support frame 102, the aluminum alloy door and window frame has tilted to a position close to 180 degrees. The lifter 107 is activated to move downward, turning the aluminum alloy door and window frame completely 180 degrees. At this point, the other side of the aluminum alloy door and window frame faces upward, ready for the second welding.

[0078] S205 starts the welding mover 103 again to drive the welder 104 to the position of the weld to perform welding.

[0079] Restart the welding mover 103, moving the welder 104 along the predetermined path to the new weld seam location. Ensure that the welder 104 is accurately aligned with the area to be welded. Start the welder 104 again and perform a second weld according to the preset welding parameters. During the welding process, the welder 104 will move along the weld seam to complete the welding of the other side of the aluminum alloy door and window frame.

[0080] The above method can not only improve the welding efficiency of aluminum alloy doors and windows, but also ensure the welding quality and extend the service life of the product. The entire welding process is highly automated and easy to operate, making it suitable for large-scale production and high-precision applications.

[0081] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of the rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A metal aluminum plate welding device for aluminum alloy doors and windows, comprising a base and a support frame, wherein the support frame is fixedly connected to the base and is located on the top of the base, characterized in that: It also includes a welding mover, a welder, a first clamp, a first rotating plate, a lifter, a second clamp, a second rotating plate and a second mover, the second mover being slidably arranged on the support frame, the second clamp being arranged on the second mover, the second rotating plate being rotatably arranged on the second clamp, the lifter being slidably arranged on one side of the support frame, the first rotating plate being rotatably arranged on the lifter, the first clamp being arranged on the first rotating plate, the welding mover being arranged on one side of the support frame, and the welder being connected to the welding mover.

2. The aluminum alloy door and window metal aluminum plate welding equipment according to claim 1, characterized in that: The welding moving module comprises a transverse mover and a longitudinal mover, wherein the transverse mover is arranged on the supporting frame, the longitudinal mover is slidably arranged on the transverse mover, and the welder is arranged on the longitudinal mover.

3. The aluminum alloy door and window metal aluminum plate welding equipment as claimed in claim 2, characterized in that: The first clamping platform comprises a clamping platform body, a sliding block and a pressing cylinder. The sliding block is slidably arranged on the clamping platform body, and the output end of the pressing cylinder is connected to the sliding block.

4. The aluminum alloy door and window metal aluminum plate welding equipment as claimed in claim 3, characterized in that: The lifter includes a lifting cylinder, a mounting plate and a support spring. The lifting cylinder is fixed on one side of the support frame. The mounting plate is connected to the output end of the lifting cylinder. The support spring is arranged between the lifting cylinder and the mounting plate. The first rotating plate is rotatably arranged on the mounting plate.

5. The aluminum alloy door and window metal aluminum plate welding equipment as claimed in claim 4, characterized in that: The aluminum alloy door and window metal aluminum plate welding equipment also includes an alignment plate, which includes two alignment plate bodies and an adjusting screw. The two alignment plate bodies are slidably arranged on both sides of the support frame. The adjusting screw has two opposite threads, and the adjusting screw is threadedly connected to the two alignment plate bodies.

6. The aluminum alloy door and window metal aluminum plate welding equipment as claimed in claim 5, characterized in that: The alignment plate further comprises a grinding structure, which is arranged on the alignment plate body and is used for grinding the weld after welding.

7. The aluminum alloy door and window metal aluminum plate welding equipment as claimed in claim 6, characterized in that: The grinding structure comprises a grinding wheel, a grinding motor and a grinding cylinder, wherein the grinding cylinder is fixed on the alignment plate body, the grinding motor is arranged on the output end of the grinding cylinder, and the grinding wheel is connected to the output end of the grinding motor.

8. The aluminum alloy door and window metal aluminum plate welding equipment as claimed in claim 7, characterized in that: The grinding structure further includes a return spring, and the return spring is arranged between the grinding cylinder and the grinding motor.

9. A method for welding aluminum alloy door and window metal aluminum plates, using the aluminum alloy door and window metal aluminum plate welding equipment according to any one of claims 1 to 8, It is characterized in that The steps include: placing two sides of the aluminum alloy door and window frame on a first clamping platform and a second clamping platform respectively for fixing; Start the welding mover to drive the welder to the location of the weld for welding; After welding is completed, the first clamping platform is lifted by the lifter, and at the same time, the second mover drives the second clamping platform to move, so that the aluminum alloy door and window frame is tilted and flipped; After the second clamping platform moves to the other end of the support frame, the lifter moves downward to make the aluminum alloy door and window frame flip 180 degrees; Start the welding mover again to drive the welder to the location of the weld for welding.

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