Welding device for aluminum alloy door and window processing

Abstract

The application discloses a welding device for aluminum alloy door and window machining and relates to the technical field of welding equipment.The welding device comprises a base, support frames are arranged on the two sides of the base, chucks are rotationally arranged on the opposite sides of the two support frames, a turnover frame is fixedly arranged between the two chucks, an extension table is arranged on one side of the bottom end of the base, and a welding assembly is arranged on the top end of the extension table.The side clamping assembly can slide along the longitudinal beam, and the fastening assembly can store energy, so that the warping deformation of the longitudinal beam caused by heat can be dynamically sensed and compensated during the welding process, the pushing force can be continuously provided to the welding seam, the welding gap and the welding separation problem are fundamentally solved, the welding quality and the yield are remarkably improved, meanwhile, through the adjustable clamping structure, the multi-angle automatic turnover and positioning system, the quick clamping and the full-range automatic welding of the door and window frames with different specifications are realized, the production efficiency is greatly improved, and the labor intensity of the operators is reduced.

Description

Technical Field

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

[0002] During the welding process of aluminum alloy door and window frames, due to the concentrated and uneven heat input, the frame components, especially long longitudinal beams, will generate thermal stress in the weld area, causing the end away from the weld to warp upwards or sag downwards.

[0003] Existing welding fixtures are unable to dynamically compensate and correct such real-time warping deformation during the welding process, which can lead to gaps at the weld joint, affecting the welding quality and strength, and even causing weld failure. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing welding devices for aluminum alloy door and window processing, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to solve the problem that existing welding fixtures are unable to dynamically compensate and correct the warping deformation that occurs in real time during the welding process, which leads to gaps at the weld joint, affects the welding quality and strength, and even causes weld failure.

[0007] To solve the above technical problems, the present invention provides the following technical solution: a welding device for processing aluminum alloy doors and windows, comprising: a base with support frames on both sides, chucks rotatably mounted on opposite sides of the two support frames, a flipping frame fixedly mounted between the two chucks, an extension platform on one side of the bottom of the base, and a welding assembly on the top of the extension platform; a side clamping assembly slidably mounted at the longitudinal rod of the flipping frame, including a sliding block slidably mounted on the outer peripheral wall of the longitudinal rod of the flipping frame, a control screw mounted inside the sliding block, clamping plates threaded to both ends of the control screw, inclined rods on both sides of the clamping plates, and ejector rods slidably mounted inside the inclined rods; The fastening assembly, located at the end of the ejector rod away from the clamping plate, includes a linkage shaft rotatably mounted at the bottom of the ejector rod, with a rubber wheel fixedly connected to the bottom of the linkage shaft, and an arc-shaped sleeve fixedly mounted at one end of the ejector rod. The arc-shaped sleeve is coaxially mounted with the rubber wheel, and the arc-shaped sleeve has several rotating cavities inside. A guide wheel is located at the bottom of the rotating cavity, and the guide wheel is in contact with the rubber wheel. A compression assembly is located at the top of the guide wheel. The top clamp is located at both ends inside the tilting frame, including a fixed frame sleeved on the crossbar of the tilting frame for fixing the tilting frame to the chuck, and a rotating frame rotatably connected to the fixed frame. A fastening clamp is located at the end of the rotating frame facing the inside of the tilting frame.

[0008] In a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, the compression assembly includes a connecting shaft fixedly mounted on the top of the guide wheel, a torsion spring sleeved on the outer periphery of the connecting shaft, a fixing collar at the bottom of the torsion spring, the fixing collar being fixedly connected to the guide wheel by screws, and a threaded assembly at the top of the torsion spring.

[0009] As a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, the threaded assembly includes a top ring fixedly connected to the top of a torsion spring. The top ring is coaxially arranged with the connecting shaft and rotatably connected by a bearing. An outer threaded sleeve is fixedly provided on the outer periphery of the top ring, and an internal thread that engages with the threaded sleeve is provided at the top of the inner end of the rotating cavity.

[0010] In a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, the outer peripheral wall of the guide wheel is provided with a plurality of evenly distributed oblique grooves to improve the contact friction between the guide wheel and the rubber wheel.

[0011] As a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, the control screw includes a rotating shaft rotatably disposed inside the sliding block, both ends of the rotating shaft are fixedly connected to adjusting screws, and the outer periphery of the two adjusting screws is threaded with guide sleeves, and the guide sleeves are fixedly disposed inside the clamping plate.

[0012] As a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, the sliding block has a sliding hole at one end facing the inner side of the flipping frame, a piston rod is provided inside the sliding hole, one end of the piston rod is connected to a push plate, and a pusher is provided inside the sliding hole for pushing the piston rod to move inside the sliding hole.

[0013] As a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, the end of the sliding block away from the sliding hole is fixedly connected to a locking plate by bolts. The locking plate and the sliding block together form a guide groove that slides with the longitudinal rod of the flipping frame. Guide frames are provided at both ends of the locking plate. One end of the clamping plate is inserted into the inside of the guide frame and slides with the guide frame.

[0014] As a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, wherein: a pneumatic push rod is fixedly provided on the top side wall of one of the support frames, a conical locking pin is fixedly provided on the telescopic end of the pneumatic push rod, and a positioning lock hole is opened at the position corresponding to the conical locking pin on the chuck.

[0015] As a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, in which: another support frame is provided with a drive assembly inside, including a drive motor fixedly installed at the bottom end of the support frame, a drive chuck installed at the drive shaft of the drive motor, and a driven chuck fixedly installed at one end of the chuck, and a transmission chain is provided on the outer periphery of the drive chuck and the driven chuck.

[0016] As a preferred embodiment of the welding device for aluminum alloy door and window processing described in this invention, the fastening clamp includes an electric push rod, which is fixedly connected to the side wall of the rotating frame. The telescopic end of the electric push rod is provided with an opening gripper. It also includes auxiliary push rods provided on both sides of the telescopic end of the electric push rod for controlling the opening angle of the opening gripper.

[0017] The beneficial effects of this invention are as follows: by setting a side clamping assembly that can slide along the longitudinal bar and an energy-storing fastening assembly, the warping deformation of the longitudinal beam caused by heat can be dynamically sensed and compensated during the welding process, and a continuous thrust is provided to the weld, which fundamentally solves the problems of weld gaps and weld failure, significantly improving welding quality and yield. At the same time, through the adjustable clamping structure, multi-angle automatic flipping and positioning system, the rapid clamping and all-round automated welding of door and window frames of different specifications are realized, which greatly improves production efficiency and reduces the labor intensity of operators. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. 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.

[0019] Figure 1 This is an overall structural diagram of a welding device used for processing aluminum alloy doors and windows.

[0020] Figure 2 Another perspective on the overall structure of the welding device used for aluminum alloy door and window processing.

[0021] Figure 3 A schematic diagram of the rotating frame of the welding device used for processing aluminum alloy doors and windows after it has been flipped.

[0022] Figure 4 A schematic diagram of the top clamp and support frame of the welding device used for processing aluminum alloy doors and windows.

[0023] Figure 5 A schematic diagram of the side clamp assembly of a welding device for processing aluminum alloy doors and windows.

[0024] Figure 6 A schematic diagram of the side clamping assembly of a welding device for processing aluminum alloy doors and windows from another perspective.

[0025] Figure 7 A schematic diagram of the side clamp assembly of a welding device for aluminum alloy door and window processing when it is open.

[0026] Figure 8 A schematic diagram of the fastening and compression components of a welding device used for processing aluminum alloy doors and windows.

[0027] Figure 9 A schematic diagram of the fastening clamp of a welding device used in the processing of aluminum alloy doors and windows.

[0028] In the diagram: 1. Base; 2. Support frame; 3. Chuck; 4. Tilting frame; 5. Extension table; 6. Welding assembly; 7. Side clamp assembly; 71. Sliding block; 711. Sliding hole; 712. Piston rod; 713. Push plate; 714. Locking plate; 715. Guide groove; 716. Guide frame; 72. Control screw; 721. Rotating shaft; 722. Adjusting screw; 723. Guide sleeve; 73. Clamping plate; 74. Angled rod; 75. Ejector rod; 8. Fastening assembly; 81. Linkage shaft; 82. Rubber wheel; 83. Arc sleeve; 84. Rotating cavity; 85. Guide wheel; 9. Compression assembly; 91. Connecting shaft; 92. Torsion spring; 93. Fixing collar; 94. Top ring; 95. External threaded sleeve; 96. Internal thread; 10. Top clamp; 101. Fixing frame; 102. Rotating frame; 11. Fastening clamp; 111. Electric push rod; 112. Opening gripper; 113. Secondary push rod; 12. Angled groove; 13. Pneumatic push rod; 14. Conical locking pin; 15. Positioning lock hole; 16. Drive motor; 17. Drive sprocket; 18. Driven sprocket; 19. Transmission chain. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1, referring to Figures 1-9 This is the first embodiment of the present invention, which provides a welding device for processing aluminum alloy doors and windows. The welding device for processing aluminum alloy doors and windows includes a base 1 for integrating various components, a welding component 6, a side clamping component 7, a fastening component 8, and a top clamp 10. The top clamp 10 is used to fix the horizontal beam of the aluminum frame of the aluminum alloy door and window, and the fastening component 8 is used to fix the vertical beam of the aluminum alloy door and window. When warping occurs during the welding process of the aluminum alloy door and window, causing the vertical beam to sag or warp upward, the warped part of the vertical beam is reset by moving the fastening component 8. During the movement, a pushing force is always provided to the vertical beam towards the welding end to ensure the integrity of the welding and avoid the problem of excessive gaps in the welding leading to weld failure.

[0033] Specifically, such as Figure 1 As shown, the base 1 is a basic support structure, which is fixed to the working ground by anchor bolts. Support frames 2 are provided on both sides of the base 1. The two support frames 2 are vertically welded to the two sides of the base 1 respectively. A chuck 3 is rotatably provided on the opposite side of the two support frames 2. The chuck 3 is rotatably connected to the support frame 2 through two bearing seats and a chuck shaft connected to the chuck 3.

[0034] A flipping frame 4 is fixedly installed between the two chucks 3. The flipping frame 4 is a rectangular frame structure composed of longitudinal and transverse bars, used to fix the aluminum alloy door and window frame. By rotating the chucks 3, the flipping frame 4 can drive the workpiece to flip at multiple angles, which facilitates the welding assembly 6 to perform all-round welding. An extension table 5 is provided on one side of the bottom of the base 1, and the welding assembly 6 is provided on the top of the extension table 5 for welding the aluminum alloy door and window frame.

[0035] Specifically, the side clamping assembly 7 is slidably disposed at the longitudinal bar of the flipping frame 4. The side clamping assembly 7 is slidably disposed at the longitudinal bar of the flipping frame 4 and is used to clamp and adjust the longitudinal beam of the aluminum frame of the door and window. During the welding process, if the longitudinal bar of the door frame warps, the longitudinal bar of the door frame can be reset by moving the side clamping assembly 7, so that the longitudinal bar of the door frame is flush with the longitudinal bar of the flipping frame 4, thereby improving the flatness of the welding of the aluminum frame of the door and window.

[0036] Furthermore, such as Figure 5 , Figure 6 and Figure 7 As shown, the side clamping assembly 7 includes a sliding block 71 slidably disposed on the outer peripheral wall of the longitudinal rod of the tilting frame 4. A control screw 72 is disposed inside the sliding block 71, and clamping plates 73 are threadedly connected to both ends of the control screw 72. Figure 7 As shown, the sliding block 71 is equipped with a control motor, which drives the control screw 72 to rotate through two meshing gears. The rotation of the control screw 72 is used to control the distance between the two clamping plates 73, so that the side clamping assembly 7 can fix aluminum frames of doors and windows of different thicknesses.

[0037] The side wall of the tilting frame 4 may be equipped with an adjusting motor and an adjusting screw. The adjusting screw is inserted into the sliding block 71, and the sliding block 71 is driven by the adjusting screw. The purpose of controlling the movement of the sliding block 71 can be achieved by driving the adjusting screw to rotate through the adjusting motor. This transmission method is a commonly used technical means in the prior art, and those skilled in the art can fully understand it.

[0038] The clamping plate 73 is provided with inclined rods 74 on both sides, and an ejector rod 75 is slidably provided inside the inclined rods 74. The inclined rods 74 and the clamping plate 73 are integrally formed, and the inclined rods 74 are provided with a hydraulic component for pushing the ejector rod 75 to move. The hydraulic component is used to control the distance between the fastening component 8 and the sliding block 71 at one end of the ejector rod 75, so that the side clamping component 7 can be adapted to aluminum frames of different widths of doors and windows.

[0039] Specifically, the fastening assembly 8 is located at the end of the ejector rod 75 away from the clamping plate 73, and includes a linkage shaft 81 rotatably mounted at the bottom of the ejector rod 75. One end of the ejector rod 75 is provided with a mounting ring, the linkage shaft 81 is inserted into the mounting ring and is rotatably connected to the mounting ring through a bearing, and a rubber wheel 82 is fixedly connected to the bottom end of the linkage shaft 81. A hexagonal rod is provided at the top end of the rubber wheel 82, the hexagonal rod is inserted into the linkage shaft 81 and is detachably fixed by bolts, so as to facilitate the replacement and maintenance of the rubber wheel 82 after long-term use.

[0040] It also includes an arc-shaped sleeve 83 fixedly installed at one end of the ejector rod 75. The arc-shaped sleeve 83 is coaxially arranged with the rubber wheel 82. The arc-shaped sleeve 83 and the ejector rod 75 are integrally formed and fixedly connected. The arc-shaped sleeve 83 has several rotating cavities 84 inside. The lower end of the rotating cavity 84 is an open cavity. The guide wheel 85 is rotatably installed inside it. The guide wheel 85 is installed at the bottom of the rotating cavity 84. The outer periphery of the guide wheel 85 protrudes from the outer surface of the arc-shaped sleeve 83, so that the guide wheel 85 can contact the rubber wheel 82. Therefore, after the rubber wheel 82 rotates, it can drive the guide wheel 85 to rotate. The top of the guide wheel 85 is provided with a compression component 9. The rotation of the guide wheel 85 twists the compression component 9, so that the compression component 9 accumulates potential energy.

[0041] Specifically, when welding the longitudinal and transverse bars of the aluminum frame for doors and windows, only one side of the frame can be welded at a time. At this time, the heat generated by welding tends to accumulate on one side of the frame connection, which can easily cause the other end of the longer longitudinal bar to warp or deflect downward.

[0042] During welding, the side clamps gradually move away from the weld seam to prevent the longitudinal rod from warping. As the side clamps move toward the warped end, the rubber wheel 82 contacts the side wall of the frame. Therefore, the rubber wheel 82 can rotate under the influence of friction with the frame, and simultaneously drive the guide wheel 85 to rotate. At the same time, the rotation of the guide wheel 85 torsionally compresses the component 9 to accumulate potential energy, so that the guide wheel 85 always has potential energy in the opposite direction. Then, the rubber wheel 82 applies a thrust that pushes the frame toward the side clamp in the opposite direction, thereby improving the stability of the welding process.

[0043] Specifically, the top clamp 10 is disposed at both ends inside the tilting frame 4, including a fixing frame 101 sleeved on the crossbar of the tilting frame 4, such as... Figure 4 As shown, the fixing frame 101 is U-shaped and fixedly connected to the flipping frame 4. One end of the fixing frame 101 is provided with a positioning plate, which can be closely attached to the end face of the chuck 3. The fixing frame 101 and the chuck 3 are fixedly connected through the bolt holes provided on the surface of the positioning plate, thereby achieving the purpose of fixing the flipping frame 4 and the chuck 3.

[0044] A rotating frame 102 is rotatably connected to the fixed frame 101. The rotating frame 102 and the fixed frame 101 are rotatably connected via a shaft, and the shaft is coaxially arranged with the chuck 3. Figure 4 and Figure 9 As shown, locking pins are provided on both sides of the rotating frame 102, and pin slots are provided on the fixed frame 101 at positions corresponding to the locking pins. When removing the workpiece, the locking pins can be manually pulled out, and the rotating part can be rotated to a direction that is intersecting with the flipping frame 4, as shown. Figure 3 As shown, the aluminum frame of the door and window can be pulled out after welding. A fastening clamp 11 is provided at one end of the rotating frame 102 facing the inside of the flipping frame 4. The fastening clamp 11 is used to hold the crossbar of the aluminum frame of the door and window.

[0045] Example 2, refer to Figures 1-9 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0046] Specifically, it also includes a compression assembly 9, which includes a connecting shaft 91 fixedly mounted on the top of the guide wheel 85. A torsion spring 92 is sleeved on the outer periphery of the connecting shaft 91. A fixing collar 93 is provided at the bottom end of the torsion spring 92. The fixing collar 93 is fixedly connected to the guide wheel 85 by screws. A threaded assembly is provided at the top end of the torsion spring 92 for adjusting the preload of the torsion spring 92.

[0047] The threaded assembly includes a top ring 94 fixedly connected to the top of the torsion spring 92. The top ring 94 is coaxially arranged with the connecting shaft 91 and rotates relative to it via a bearing. An external threaded sleeve 95 is fixedly provided on the outer circumference of the top ring 94. The top of the inner wall of the rotating cavity 84 is provided with an internal thread 96 that matches the external threaded sleeve 95. By rotating the top ring 94, the initial torque of the torsion spring 92 can be adjusted, thereby controlling the magnitude of the reverse thrust applied by the guide wheel 85 to the rubber wheel 82 to adapt to the precise requirements of the reset force under different welding conditions.

[0048] The outer peripheral wall of the guide wheel 85 is provided with several evenly distributed oblique grooves 12, which are used to improve the contact friction between the guide wheel 85 and the rubber wheel 82. By setting the oblique grooves 12, the friction between the guide wheel 85 and the rubber wheel 82 can be greatly improved when they come into contact, thus improving the transmission effect. After contact, the grooves can press indentations into the surface of the rubber wheel 82, improving the surface roughness of the rubber wheel 82, and further improving the contact friction with the aluminum frame of the door and window, thereby improving the transmission effect between the aluminum frame of the door and window and the rubber wheel 82 when the side clamp assembly 7 moves.

[0049] Specifically, the control screw 72 includes a rotating shaft 721 rotatably disposed inside the sliding block 71. A control motor is disposed inside the sliding block 71. A drive gear is keyed to the top of the control motor. A driven gear is sleeved on the outer periphery of the rotating shaft 721. The drive gear and the driven gear mesh with each other. Therefore, the rotating shaft 721 can be driven to rotate by controlling the rotation of the motor.

[0050] Both ends of the rotating shaft 721 are fixedly connected to adjusting screws 722. The threads of the two adjusting screws 722 are set in opposite directions. The outer periphery of the two adjusting screws 722 is threaded with guide sleeves 723, and the guide sleeves 723 are fixedly set inside the clamping plate 73. Since the threads of the two adjusting screws 722 are in opposite directions, the guide sleeves 723 on both sides and the clamping plate 73 will move relative to each other when rotating, thereby adjusting the distance between the two clamping plates 73, so that the side clamping assembly 7 can fix door and window aluminum frames of different thicknesses.

[0051] Specifically, the sliding block 71 has a sliding hole 711 at one end facing the inside of the tilting frame 4. A piston rod 712 is installed inside the sliding hole 711. The sliding hole 711 has a rectangular cross-section, and the piston rod 712 is inserted into the sliding hole 711 and contacts the inner wall of the sliding hole 711. One end of the piston rod 712 is connected to a push plate 713. A pusher is installed inside the sliding hole 711 to push the piston rod 712 to move inside the sliding hole 711. The pusher can be an electric push rod, a hydraulic push rod, or other telescopic structure. It is used to push the piston rod 712 to move inside the sliding hole 711, thereby applying a pushing force to the longitudinal beam of the door and window aluminum frame through the push plate 713. The distance between the longitudinal beam and the center of the tilting frame 4 is controlled by the inclined rod 74 and the ejector rod 75, so that the equipment can be used for door and window aluminum frames with different crossbar lengths.

[0052] A locking plate 714 is detachably fixed to the end of the sliding block 71 away from the sliding hole 711 by bolts. The locking plate 714 and the sliding block 71 together form a guide groove 715 that slides with the longitudinal rod of the flipping frame 4. The cross section of the guide groove 715 matches the shape of the longitudinal rod of the flipping frame 4 to ensure that the sliding block 71 moves smoothly along the longitudinal rod. Guide frames 716 are provided at both ends of the locking plate 714. One end of the clamping plate 73 is inserted into the inside of the guide frame 716 and slides with the guide frame 716 to ensure that the clamping plate 73 does not deflect during movement and improves clamping stability.

[0053] Specifically, a pneumatic push rod 13 is fixedly installed on the top side wall of one of the support frames 2. A conical locking pin 14 is fixedly installed at the telescopic end of the pneumatic push rod 13. A positioning locking hole 15 is opened at the position corresponding to the conical locking pin 14 on the chuck 3. When the chuck 3 rotates to a predetermined angle, the pneumatic push rod 13 pushes the conical locking pin 14 to insert into the positioning locking hole 15, so as to realize the precise positioning and locking of the flip frame 4, which facilitates welding operations at a specific angle and improves welding accuracy and repeatability consistency.

[0054] like Figure 2 As shown, a control component is also provided at the bottom of the support frame 2 to control the various electrical components inside the equipment and realize the overall electrical control of the equipment.

[0055] Another support frame 2 has a drive assembly inside, including a drive motor 16 fixedly mounted at the bottom of the support frame 2. The output shaft of the drive motor 16 is connected to a drive sprocket 17. A driven sprocket 18 is fixedly mounted at one end of the chuck 3. A transmission chain 19 is sleeved on the outer periphery of the drive sprocket 17 and the driven sprocket 18. The drive motor 16 drives the drive sprocket 17 to rotate, and the power is transmitted to the driven sprocket 18 through the transmission chain 19, thereby driving the chuck 3 and the flipping frame 4 to rotate as a whole, realizing the automated multi-angle flipping of the workpiece, reducing the intensity of manual operation, and improving welding efficiency.

[0056] The fastening clamp 11 includes an electric push rod 111, which is fixedly connected to the side wall of the rotating frame 102. The telescopic end of the electric push rod 111 is provided with an opening gripper 112. By telescoping the electric push rod 111, the distance between the opening gripper 112 and the center of the flipping frame 4 can be controlled to accommodate aluminum frames of doors and windows with different longitudinal bar lengths. It also includes auxiliary push rods 113 on both sides of the telescopic end of the electric push rod 111. The auxiliary push rods 113 are used to control the opening angle of the opening gripper 112 so that it can adapt to door and window beams with different cross-sectional dimensions and provide uniform clamping force during clamping to avoid excessive local stress that could cause workpiece deformation.

[0057] During use, the aluminum alloy door and window frame to be welded is placed inside the flipping frame 4. The crossbeam of the door and window frame is clamped and fixed by the fastening clamps 11 in the top clamps 10 at both ends. The side clamping assembly 7 is activated, and the motor drives the control screw 72 to rotate, so that the clamping plates 73 on both sides move to clamp the longitudinal beam of the door and window frame in the thickness direction. At the same time, the hydraulic assembly in the diagonal rod 74 pushes the ejector rod 75 to extend, so that the rubber wheel 82 of the fastening assembly 8 is in close contact with the side of the longitudinal beam to adapt to different widths of door and window frames.

[0058] Adjustment and pre-tightening: According to the welding process requirements, the pre-tightening force of the torsion spring 92 is adjusted by rotating the top ring 94 of the compression assembly 9, and the initial thrust of the rubber wheel 82 on the longitudinal beam is set.

[0059] Welding and Deformation Compensation: When welding assembly 6 is started, during welding, the sliding block 71 of the control assembly on the side clamp 7 moves along the longitudinal rod of the tilting frame 4 in the opposite direction of warping. During this process, the rubber wheel 82 rotates under the action of friction and drives the guide wheel 85 to rotate. The guide wheel 85 torsion spring 92 to accumulate potential energy. The reverse potential energy of the torsion spring 92 is continuously converted into a thrust in the direction of the weld through the guide wheel 85 and the rubber wheel 82, thereby dynamically restoring the warped longitudinal beam and ensuring that the welded joint is tight and gapless.

[0060] Flipping and positioning: After the welding points on one side are completed, the drive motor 16 is started, and the chuck 3 and the flipping frame 4 are rotated by a specific angle through the transmission chain 19. When the rotation reaches the predetermined position, the pneumatic push rod 13 is activated, inserting the conical locking pin 14 into the positioning locking hole 15 of the chuck 3 to achieve precise positioning and locking.

[0061] Unloading the workpiece: After welding is completed, the clamp is released, the locking of the rotating frame 102 is released, and the aluminum frame of the door and window is rotated to intersect with the flipping frame 4. At this time, the aluminum frame of the door and window after welding can be pulled out, which can quickly remove the aluminum frame of the door and window after welding.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A welding device for processing aluminum alloy doors and windows, characterized in that: include, The base (1) has support frames (2) on both sides. Each of the two support frames (2) has a chuck (3) rotatably mounted on one side opposite to the other. A flip frame (4) is fixedly mounted between the two chucks (3). An extension platform (5) is mounted on one side of the bottom of the base (1). A welding assembly (6) is mounted on the top of the extension platform (5). The side clamping assembly (7) is slidably disposed at the longitudinal rod of the tilting frame (4), including a sliding block (71) slidably disposed on the outer peripheral wall of the longitudinal rod of the tilting frame (4), a control screw (72) disposed inside the sliding block (71), a clamping plate (73) being threadedly connected to both ends of the control screw (72), and inclined rods (74) disposed on both sides of the clamping plate (73), and an ejector rod (75) slidably disposed inside the inclined rods (74); and, The fastening assembly (8) is located at the end of the ejector rod (75) away from the clamping plate (73). It includes a linkage shaft (81) rotatably mounted at the bottom end of the ejector rod (75). A rubber wheel (82) is fixedly connected to the bottom end of the linkage shaft (81). It also includes an arc-shaped sleeve (83) fixedly mounted at one end of the ejector rod (75). The arc-shaped sleeve (83) is coaxially mounted with the rubber wheel (82). Several rotating cavities (84) are opened inside the arc-shaped sleeve (83). A guide wheel (85) is provided at the bottom end of the rotating cavity (84). The guide wheel (85) is in contact with the rubber wheel (82). A compression assembly (9) is provided at the top end of the guide wheel (85). The compression assembly (9) includes a connecting shaft (91) fixedly installed at the top of the guide wheel (85), a torsion spring (92) sleeved on the outer periphery of the connecting shaft (91), a fixing collar (93) provided at the bottom end of the torsion spring (92), the fixing collar (93) and the guide wheel (85) being fixedly connected by screws, and a threaded assembly provided at the top end of the torsion spring (92). The top clamp (10) is located at both ends inside the flipping frame (4), including a fixed frame (101) sleeved on the crossbar of the flipping frame (4) for fixing the flipping frame (4) to the chuck (3), and a rotating frame (102) rotatably connected to the fixed frame (101). A fastening clamp (11) is provided at one end of the rotating frame (102) facing the inside of the flipping frame (4).

2. The welding device for processing aluminum alloy doors and windows as described in claim 1, characterized in that: The threaded assembly includes a top ring (94) fixedly connected to the top of the torsion spring (92). The top ring (94) is coaxially arranged with the connecting shaft (91) and is rotatably connected by a bearing. An outer threaded sleeve (95) is fixedly arranged on the outer periphery of the top ring (94), and an inner thread (96) that is threadedly engaged with the outer threaded sleeve (95) is opened at the top of the inner cavity (84).

3. The welding device for processing aluminum alloy doors and windows as described in claim 2, characterized in that: The outer peripheral wall of the guide wheel (85) is provided with several evenly distributed oblique grooves (12) to improve the contact friction between the guide wheel (85) and the rubber wheel (82).

4. The welding device for processing aluminum alloy doors and windows as described in claim 3, characterized in that: The control screw (72) includes a rotating shaft (721) rotatably disposed inside the sliding block (71). Both ends of the rotating shaft (721) are fixedly connected to adjusting screws (722). The outer periphery of the two adjusting screws (722) is threaded with guide sleeves (723), and the guide sleeves (723) are fixedly disposed inside the clamping plate (73).

5. The welding device for processing aluminum alloy doors and windows as described in claim 4, characterized in that: The sliding block (71) has a sliding hole (711) at one end facing the inside of the flipping frame (4). A piston rod (712) is provided inside the sliding hole (711). One end of the piston rod (712) is connected to a push plate (713). A pusher is provided inside the sliding hole (711) for pushing the piston rod (712) to move inside the sliding hole (711).

6. The welding device for processing aluminum alloy doors and windows as described in claim 5, characterized in that: The sliding block (71) is fixedly connected to a locking plate (714) by bolts at one end away from the sliding hole (711). The locking plate (714) and the sliding block (71) together form a guide groove (715) that slides with the longitudinal rod of the flipping frame (4). Guide frames (716) are provided at both ends of the locking plate (714). One end of the clamping plate (73) is inserted into the inside of the guide frame (716) and slides with the guide frame (716).

7. The welding device for processing aluminum alloy doors and windows as described in claim 6, characterized in that: One of the support frames (2) has a pneumatic push rod (13) fixedly installed on the top side wall. The telescopic end of the pneumatic push rod (13) is fixedly installed with a conical locking pin (14), and the chuck (3) has a positioning locking hole (15) at the position corresponding to the conical locking pin (14).

8. The welding apparatus for processing aluminum alloy doors and windows as described in claim 7, characterized in that: Another support frame (2) is provided with a drive assembly inside, including a drive motor (16) fixedly installed at the bottom of the support frame (2), a drive sprocket (17) is provided at the drive shaft of the drive motor (16), and a driven sprocket (18) fixedly installed at one end of the chuck (3). A transmission chain (19) is provided on the outer periphery of the drive sprocket (17) and the driven sprocket (18).

9. The welding device for processing aluminum alloy doors and windows as described in claim 8, characterized in that: The fastening clamp (11) includes an electric push rod (111), which is fixedly connected to the side wall of the rotating frame (102). The telescopic end of the electric push rod (111) is provided with an opening gripper (112). It also includes auxiliary push rods (113) on both sides of the telescopic end of the electric push rod (111) for controlling the opening angle of the opening gripper (112).

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