Welding device for aluminum alloy door and window machining

Abstract

The invention 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, supporting frames are arranged on the two sides of the base, chucks are rotationally arranged on the opposite sides of the two supporting frames, a turnover frame is jointly and fixedly arranged between the two chucks, and an extension table is arranged on one side of the bottom end of the base; welding assemblies are arranged at the top ends of the extending tables. By arranging the side clamping assembly capable of sliding along the longitudinal rod and the fastening assembly capable of storing energy, buckling deformation generated by heating of the longitudinal beam can be dynamically sensed and compensated in the welding process, thrust is continuously provided for a weld joint, the problems of welding gaps and desoldering are fundamentally solved, the welding quality and the yield are remarkably improved, and meanwhile the welding quality is improved. Through an adjustable clamping structure and a multi-angle automatic overturning and positioning system, quick clamping and all-dimensional automatic welding of door and window frames of different specifications are achieved, the production efficiency is greatly improved, and the labor intensity of operators is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a welding device for aluminum alloy door and window processing. BACKGROUND

[0002] In the welding process of the frame of the aluminum alloy door and window, due to the concentrated and uneven welding heat input, the frame member, especially the long size longitudinal beam, will produce thermal stress in the welding seam area, resulting in the deformation of the end far away from the welding seam to be upwardly warped or downwardly sagged.

[0003] The existing welding tooling is difficult to dynamically compensate and correct the real-time occurring warping deformation in the welding process, which will cause the gap at the welded joint, affect the welding quality and strength, and even cause the disengagement. SUMMARY

[0004] This section aims to summarize some aspects of the embodiments of the present application and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the specification to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions cannot be used to limit the scope of the present application.

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

[0006] Therefore, the problem to be solved by the present application is how to solve the problem that the existing welding tooling is difficult to dynamically compensate and correct the real-time occurring warping deformation in the welding process, thereby causing the gap at the welded joint, affecting the welding quality and strength, and even causing the disengagement.

[0007] To solve the above technical problems, the present application provides the following technical solutions: A welding device for aluminum alloy door and window processing, comprising a base provided with support frames on both sides, a chuck rotatably arranged on the opposite side of each support frame, a turnover frame fixedly arranged between the two chucks, an extension table provided on one side of the bottom end of the base, and a welding assembly provided on the top end of the extension table; a side clamping assembly slidably arranged at the longitudinal rod of the turnover frame, comprising a sliding block slidably arranged on the outer peripheral wall of the longitudinal rod of the turnover frame, a control screw arranged in the sliding block, a clamping plate threadedly connected to the two ends of the control screw, an inclined rod arranged on both sides of the clamping plate, and an ejection rod slidably arranged in the inclined rod; and a fastening assembly provided at the end of the ejection rod away from the clamping plate, comprising a linkage shaft rotatably arranged at the bottom end of the ejection rod, a rubber wheel fixedly connected to the bottom end of the linkage shaft, an arc-shaped sleeve fixedly arranged at one end of the ejection rod, the arc-shaped sleeve being coaxially arranged with the rubber wheel, a plurality of rotating cavities being formed in the arc-shaped sleeve, a guide wheel arranged at the bottom end of each rotating cavity, the guide wheel being in contact with the rubber wheel, and a compression assembly arranged at the top end of the guide wheel; a top clamp arranged at both ends of the inside of the turnover frame, comprising a fixed frame arranged on the cross rod of the turnover frame, a rotating frame rotatably connected to the fixed frame, and a fastening clamp arranged at one end of the rotating frame towards the inside of the turnover frame.

[0008] As a preferred scheme of the welding device for aluminum alloy door and window processing, the compression assembly comprises a connecting shaft fixedly arranged at the top end of the guide wheel, a torsional spring arranged on the outer peripheral side of the connecting shaft, a fixed sleeve ring arranged at the bottom end of the torsional spring, the fixed sleeve ring being fixedly connected to the guide wheel through a screw, and a threaded assembly arranged at the top end of the torsional spring.

[0009] As a preferred scheme of the welding device for aluminum alloy door and window processing, the threaded assembly comprises a top ring fixedly connected to the top end of the torsional spring, the top ring being coaxially arranged with the connecting shaft and rotatably connected through a bearing, an outer screw sleeve fixedly arranged on the outer peripheral side of the top ring, and an inner thread formed at the top end of the rotating cavity and threadedly matched with the outer screw sleeve.

[0010] As a preferred scheme of the welding device for aluminum alloy door and window processing, the outer peripheral wall of the guide wheel is provided with a plurality of uniformly distributed inclined grooves for improving the contact friction force between the guide wheel and the rubber wheel.

[0011] As a preferred scheme of the welding device for aluminum alloy door and window processing, the control screw comprises a rotating shaft rotatably arranged in the sliding block, an adjusting screw fixedly connected to each end of the rotating shaft, a guide sleeve threadedly matched with the outer peripheral side of each adjusting screw, and the guide sleeve being fixedly arranged in the inside of the clamping plate.

[0012] As a preferred scheme of the welding device for aluminum alloy door and window processing, one end of the sliding block towards the inside of the turnover frame is provided with a sliding hole, a piston rod is arranged in the sliding hole, one end of the piston rod is connected with a push plate, and a pushing piece is arranged in the sliding hole for pushing the piston rod to move in the sliding hole.

[0013] As a preferred scheme of the welding device for aluminum alloy door and window processing, one end of the sliding block away from the sliding hole is fixedly connected with a locking plate through a bolt, a guide groove which is in sliding fit with the longitudinal rod of the turnover frame is formed between the locking plate and the sliding block, and guide frames are arranged at both ends of the locking plate, one end of the clamping plate is inserted into the guide frames and is in sliding fit with the guide frames.

[0014] As a preferred scheme of the welding device for aluminum alloy door and window processing, the top end side wall of one of the support frames is fixedly provided with a pneumatic push rod, the telescopic end of the pneumatic push rod is fixedly provided with a conical lock pin, and a positioning lock hole is arranged at the position corresponding to the conical lock pin of the chuck.

[0015] As a preferred scheme of the welding device for aluminum alloy door and window processing, the inside of the other support frame is provided with a driving assembly, which comprises a driving motor fixedly arranged at the bottom end of the support frame, a driving gear is arranged at the driving shaft of the driving motor, a driven gear is fixedly arranged at one end of the chuck, and a transmission chain is arranged at the outer circumferential sides of the driving gear and the driven gear.

[0016] As a preferred scheme of the welding device for aluminum alloy door and window processing, the fastening clamp comprises an electric push rod which is fixedly connected with the side wall of the rotating frame, the telescopic end of the electric push rod is provided with a spreadable clamping jaw, and a secondary push rod is arranged on both sides of the telescopic end of the electric push rod, for controlling the opening angle of the spreadable clamping jaw.

[0017] The present application has the beneficial effects that: by arranging the side clamping assembly which can slide along the longitudinal rod and the fastening assembly which can store energy, the warping deformation of the longitudinal beam caused by heating can be dynamically perceived and compensated during the welding process, the pushing force is continuously provided to the welding seam, the welding gap and the disengaging problem are fundamentally solved, the welding quality and the yield are significantly improved, meanwhile, by the adjustable clamping structure, the multi-angle automatic overturning and positioning system, the rapid clamping and the full-automatic welding of the door and window frames of different specifications are realized, the production efficiency is greatly improved, and the labor intensity of the operators is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0019] Figure 1 It is an overall structural view of the welding device for aluminum alloy door and window processing.

[0020] Figure 2 It is another view of the overall structural view of the welding device for aluminum alloy door and window processing.

[0021] Figure 3 It is a structural schematic view of the welding device for aluminum alloy door and window processing after the rotating frame is turned over.

[0022] Figure 4 It is a structural schematic view of the top clamp and support frame of the welding device for aluminum alloy door and window processing.

[0023] Figure 5 It is a structural schematic view of the side clamp assembly of the welding device for aluminum alloy door and window processing.

[0024] Figure 6 It is a structural schematic view of the side clamp assembly of the welding device for aluminum alloy door and window processing from another view.

[0025] Figure 7 It is a structural schematic view of the side clamp assembly of the welding device for aluminum alloy door and window processing when the side clamp assembly is opened.

[0026] Figure 8 It is a structural schematic view of the fastening assembly and compression assembly of the welding device for aluminum alloy door and window processing.

[0027] Figure 9 It is a structural schematic view of the fastening clamp of the welding device for aluminum alloy door and window processing.

[0028] In the figure: 1, base; 2, support frame; 3, chuck; 4, turnover frame; 5, extension table; 6, welding assembly; 7, side clamping 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, inclined rod; 75, ejection 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, torsional spring; 93, fixed sleeve ring; 94, top ring; 95, outer threaded sleeve; 96, internal thread; 10, top clamp; 101, fixed frame; 102, rotating frame; 11, fastening clamp; 111, electric push rod; 112, opening clamping jaw; 113, auxiliary push rod; 12, inclined slot; 13, pneumatic push rod; 14, conical lock pin; 15, positioning lock hole; 16, drive motor; 17, drive cogwheel; 18, driven cogwheel; 19, transmission chain. DETAILED DESCRIPTION

[0029] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0030] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0031] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments.

[0032] Embodiment 1, refer to Figures 1-9 For the first embodiment of the present application, the embodiment provides a welding device for aluminum alloy door and window processing, the welding device for aluminum alloy door and window processing includes a base 1 for integrating various components, a welding assembly 6, a side clamping assembly 7, a fastening assembly 8 and a top clamp 10, the top clamp 10 is used to fix the cross beam of the aluminum alloy door and window aluminum frame, and the fastening assembly 8 is used to fix the longitudinal beam of the aluminum alloy door and window. When the longitudinal beam is downward or upward warped during the welding process of the aluminum alloy door and window, the fastening assembly 8 is moved to reset the warped part of the longitudinal beam, and the longitudinal beam is always provided with a pushing force towards the welding end during the movement, so as to ensure the integrity of the welding and avoid the problem of welding separation caused by too large gap.

[0033] Specifically, as shown in Figure 1 , the base 1 is a basic support structure, which is fixed to the working ground by anchor bolts, and two support frames 2 are arranged on the two sides of the base 1, and the two support frames 2 are respectively welded vertically on the two sides of the base 1. The opposite sides of the two support frames 2 are rotatably provided with chucks 3, and the chucks 3 are rotatably connected with the support frames 2 through two bearing seats and a clamping shaft connected with the chucks 3.

[0034] A turnover frame 4 is fixedly arranged between the two chucks 3, and the turnover frame 4 is a rectangular frame structure composed of longitudinal rods and cross rods, which is used for fixing the aluminum alloy door and window aluminum frame. Through the rotation of the chuck 3, the turnover frame 4 can drive the workpiece to overturn at multiple angles, which is convenient for the welding assembly 6 to carry out all-around welding. The bottom end of the base 1 is provided with an extension table 5, and the top end of the extension table 5 is provided with a welding assembly 6, which is used for welding operation of the aluminum alloy door and window aluminum frame.

[0035] Specifically, the side clamping assembly 7 is slidably arranged at the longitudinal rods of the turnover frame 4, and the side clamping assembly 7 is slidably arranged at the longitudinal rods of the turnover frame 4, which is used for clamping and adjusting the longitudinal beams of the door and window aluminum frame. During the welding process, if the door frame longitudinal rod is warped, the side clamping assembly 7 can be moved to reset the door frame longitudinal rod, so that the longitudinal rod of the door frame is flush with the longitudinal rod of the turnover frame 4, and the flatness of the door and window aluminum frame welding is improved.

[0036] Further, as shown in Figure 5 , Figure 6 and Figure 7 , the side clamping assembly 7 includes a sliding block 71 slidably arranged on the outer peripheral wall of the longitudinal rod of the turnover frame 4, and the inside of the sliding block 71 is provided with a control screw 72, and the two ends of the control screw 72 are threadedly connected with clamping plates 73, as shown in Figure 7 , the inside of the sliding block 71 is provided with a control motor, and the control motor can drive the control screw 72 to rotate through two intermeshing 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 the door and window aluminum frame with different thicknesses.

[0037] The side wall of the turnover frame 4 can be provided with an adjusting motor and an adjusting screw, and the adjusting screw is inserted into the inside of the sliding block 71, and the sliding block 71 is in transmission cooperation with the adjusting screw. The purpose of controlling the movement of the sliding block 71 can be achieved by rotating the adjusting screw driven by the adjusting motor. This transmission mode is not shown in the figure, which is a commonly used technical means in the prior art, and those skilled in the art can fully understand it.

[0038] The two sides of the clamping plate 73 are provided with inclined rods 74, the inside of the inclined rod 74 is slidably provided with an ejection rod 75, the inclined rod 74 is integrally formed with the clamping plate 73, and the inside of the inclined rod 74 is provided with a hydraulic assembly for pushing the ejection rod 75 to move, the distance between the fastening assembly 8 provided at one end of the ejection rod 75 and the sliding block 71 is controlled, so that the side clamping assembly 7 is suitable for different width of door and window aluminum frame.

[0039] Specifically, the fastening assembly 8 is arranged at one end of the ejection rod 75 away from the clamping plate 73, and includes a linkage shaft 81 rotatably arranged at the bottom end of the ejection rod 75. One end of the ejection rod 75 is provided with a mounting ring, the linkage shaft 81 is inserted into the inside of the mounting ring and is rotatably connected with the mounting ring through a bearing. The bottom end of the linkage shaft 81 is fixedly connected with a rubber wheel 82, and the top end of the rubber wheel 82 is provided with a hexagonal rod which is inserted into the inside of the linkage shaft 81 and is detachably fixedly connected through bolts, so as to replace and maintain the rubber wheel 82 after a long time of use.

[0040] It also includes an arc-shaped sleeve 83 fixedly arranged at one end of the ejection rod 75, which is coaxially arranged with the rubber wheel 82. The arc-shaped sleeve 83 is integrally formed and fixedly connected with the ejection rod 75. A plurality of rotating cavities 84 are formed in the inside of the arc-shaped sleeve 83. The lower end of the rotating cavity 84 is an open cavity, and a guide wheel 85 is rotatably arranged in the inside of the rotating cavity 84. The inside bottom end of the rotating cavity 84 is provided with the guide wheel 85. The outer periphery of the guide wheel 85 protrudes from the outer facade of the arc-shaped sleeve 83, so that the guide wheel 85 can be in contact with the rubber wheel 82. Therefore, after the rubber wheel 82 rotates, the guide wheel 85 can be driven to rotate. The top end of the guide wheel 85 is provided with a compression assembly 9. The compression assembly 9 is twisted by the rotation of the guide wheel 85, so as to accumulate potential energy.

[0041] Specifically, when welding the longitudinal rods and the cross rods of the door and window aluminum frame, only one side of the frame can be welded at a time. At this time, the heat generated by welding is easily accumulated on one side of the frame connection, so it is easy to cause the other end of the longer longitudinal rod to warp or deflect downward.

[0042] During welding, the side clamps gradually move away from the weld, avoiding the longitudinal rod from warping. During the movement of the side clamps towards the warped end, the rubber wheel 82 is in contact with the side wall of the frame, so that the rubber wheel 82 can rotate under the influence of the friction with the frame, and simultaneously drive the guide wheel 85 to rotate. At the same time, the guide wheel 85 twists the compression assembly 9 to accumulate potential energy, so that the guide wheel 85 always has a potential energy in the opposite direction. Then, through the rubber wheel 82, a pushing force opposite to the moving direction of the frame towards the side clamps is applied, so as to improve the stability during welding.

[0043] Specifically, the top clamp 10 is arranged at both ends of the inside of the turnover frame 4, and includes a fixed frame 101 sleeved at the cross rod of the turnover frame 4.Figure 4 As shown in the drawings, the fixed frame 101 is arranged in a U shape and fixedly connected with the turnover frame 4. One end of the fixed frame 101 is provided with a positioning plate capable of being tightly attached to the end face of the chuck 3, and the fixed frame 101 is fixedly connected with the chuck 3 through the bolt hole provided on the surface of the positioning plate, thereby achieving the purpose of fixedly connecting the turnover frame 4 with the chuck 3.

[0044] The rotating frame 102 is rotatably connected with the fixed frame 101 through a shaft, and the shaft is coaxially arranged with the chuck 3, as shown in the drawings. Figure 4 and Figure 9 As shown in the drawings, the rotating frame 102 is provided with a locking pin on each side, and the fixed frame 101 is provided with a pin groove corresponding to the locking pin. When the workpiece is taken out, the locking pin can be manually pulled out, and the rotating frame 102 is rotated to the direction intersecting with the turnover frame 4, as shown in the drawings. At this time, the purpose of extracting the door and window aluminum frame after welding can be achieved. The end of the rotating frame 102 facing the inner side of the turnover frame 4 is provided with a fastening clamp 11 for clamping the cross bar of the door and window aluminum frame. Figure 3

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

[0046] Specifically, it further comprises a compression assembly 9, which comprises a connecting shaft 91 fixedly arranged at the top end of the guide wheel 85. A torsional spring 92 is sleeved on the outer periphery of the connecting shaft 91. A fixed sleeve ring 93 is arranged at the bottom end of the torsional spring 92 and fixedly connected with the guide wheel 85 through a screw. A threaded assembly is arranged at the top end of the torsional spring 92 for adjusting the pre-tightening force of the torsional spring 92.

[0047] The threaded assembly comprises a top ring 94 fixedly connected with the top end of the torsional spring 92. The top ring 94 is coaxially arranged with the connecting shaft 91 and relatively rotates through a bearing. An outer screw sleeve 95 is fixedly arranged on the outer periphery of the top ring 94. An inner thread 96 matched with the outer screw sleeve 95 is arranged on the inner wall of the rotating cavity 84. The initial torque of the torsional spring 92 can be adjusted by rotating the top ring 94, so as to control the size of the reverse thrust applied by the guide wheel 85 to the rubber wheel 82, so as to adapt to the accurate requirement of the reset force under different welding conditions.

[0048] ​The outer peripheral wall of the guide wheel 85 is provided with a plurality of oblique grooves 12 uniformly distributed, for improving the contact friction between the guide wheel 85 and the rubber wheel 82. Through the arrangement of the oblique grooves 12, the friction between the guide wheel 85 and the rubber wheel 82 can be greatly improved when they are in contact, the transmission effect is improved, and after contact, a dent can be pressed on the surface of the rubber wheel 82, the roughness of the surface of the rubber wheel 82 is improved, the contact friction with the aluminum frame of the door and window is further improved, so as to improve the transmission effect between the aluminum frame of the door and window and the rubber wheel 82 when the side clamping assembly 7 moves.

[0049] Specifically, the control screw 72 includes a rotating shaft 721 rotatably arranged in the sliding block 71. The inside of the sliding block 71 is provided with a control motor. The top end of the control motor is key-connected with a drive gear. The outer periphery of the rotating shaft 721 is sleeved with a driven gear. The drive gear and the driven gear are mutually engaged. Therefore, the rotating shaft 721 can be driven to rotate through the rotation of the control motor.

[0050] The two ends of the rotating shaft 721 are fixedly connected with adjusting screws 722. The screw threads of the two adjusting screws 722 are oppositely arranged. The outer peripheries of the two adjusting screws 722 are threadedly fitted with guide sleeves 723. The guide sleeves 723 are fixedly arranged in the inside of the clamping plate 73. Since the screw threads of the two adjusting screws 722 are oppositely arranged, the guide sleeves 723 on the two sides will relatively move with the clamping plate 73 when rotating. Thus, the distance between the two clamping plates 73 can be adjusted. The side clamping assembly 7 can fix the aluminum frame of the door and window with different thicknesses.

[0051] Specifically, the end of the sliding block 71 towards the inside of the turnover frame 4 is provided with a sliding hole 711. The inside of the sliding hole 711 is provided with a piston rod 712. The cross section of the sliding hole 711 is rectangularly arranged. The piston rod 712 is inserted into the inside of the sliding hole 711 and in contact with the inner wall of the sliding hole 711. One end of the piston rod 712 is connected with a push plate 713. The inside of the sliding hole 711 is provided with a pushing piece for pushing the piston rod 712 to move in the inside of the sliding hole 711. The pushing piece can be an electric push rod, a hydraulic push rod or other telescopic structure for pushing the piston rod 712 to move in the inside of the sliding hole 711. Then, the push plate 713 applies a pushing force to the stringer of the aluminum frame of the door and window. The distance between the stringer and the center of the turnover frame 4 is controlled in cooperation with the oblique rod 74 and the ejecting rod 75. Thus, the equipment can be suitable for the aluminum frame of the door and window with different lengths of cross bars.

[0052] The sliding block 71 is detachably fixed and connected with the locking plate 714 through a bolt away from one end of the sliding hole 711, the locking plate 714 and the sliding block 71 jointly form the guide groove 715 which is in sliding cooperation with the longitudinal rod of the turnover frame 4, the cross section of the guide groove 715 matches the shape of the longitudinal rod of the turnover frame 4, which ensures the stable movement of the sliding block 71 along the longitudinal rod, and the two ends of the locking plate 714 are provided with the guide frame 716, one end of the clamping plate 73 is inserted into the inside of the guide frame 716 and is in sliding cooperation with the guide frame 716, which ensures that the clamping plate 73 does not deflect during movement and improves the clamping stability.

[0053] Specifically, the top end side wall of one of the support frames 2 is fixedly provided with the pneumatic push rod 13, the telescopic end of the pneumatic push rod 13 is fixedly provided with the conical lock pin 14, the chuck 3 is provided with the positioning lock hole 15 at the position corresponding to the conical lock pin 14, when the chuck 3 is rotated to a predetermined angle, the pneumatic push rod 13 pushes the conical lock pin 14 to insert into the positioning lock hole 15, which realizes the accurate positioning and locking of the turnover frame 4, facilitates the welding operation at a specific angle, and improves the welding precision and the consistency of repeated positioning.

[0054] As shown in Figure 2 The inside bottom end of the support frame 2 is also provided with a control assembly for controlling various electrical components in the device, realizing the overall electrical control of the device.

[0055] The inside of the other support frame 2 is provided with a driving assembly, including the driving motor 16 fixedly arranged at the bottom end of the support frame 2, the output shaft of the driving motor 16 is connected with the driving cog 17, the chuck 3 is fixedly provided with the driven cog 18 at one end, the driving cog 17 and the driven cog 18 are jointly sleeved with the transmission chain 19 at the outer circumferential side, the driving cog 17 is driven to rotate by the driving motor 16, the power is transmitted to the driven cog 18 through the transmission chain 19, so as to drive the chuck 3 and the turnover frame 4 to rotate as a whole, realizing the automatic multi-angle turnover of the workpiece, reducing the manual operation strength, and improving the welding efficiency.

[0056] The fastening clamp 11 includes the electric push rod 111 which is fixedly connected with the side wall of the rotating frame 102, the telescopic end of the electric push rod 111 is provided with the opening jaw 112, the distance between the opening jaw 112 and the center of the turnover frame 4 can be controlled through the telescopic extension of the electric push rod 111, so as to be suitable for the door and window aluminum frames with different longitudinal rod lengths, the fastening clamp 11 also includes the auxiliary push rod 113 arranged at both sides of the telescopic end of the electric push rod 111, the auxiliary push rod 113 is used to control the opening angle of the opening jaw 112, so that it can adapt to the door and window beams with different cross section sizes, and provide uniform clamping force during clamping, avoiding the deformation of the workpiece caused by excessive local stress.

[0057] In use, clamping and fixing: the aluminum alloy door and window frame to be welded is placed on the inner side of the turnover frame 4, the cross beam of the aluminum alloy door and window frame is clamped and fixed by the fastening clamp 11 in the top end clamp 10 at both ends, the side clamping assembly 7 is started, the control motor drives the control screw 72 to rotate, the two side clamping plates 73 are moved to clamp the thickness direction of the longitudinal beam of the aluminum alloy door and window frame, at the same time, the hydraulic assembly in the inclined rod 74 pushes the ejector rod 75 to extend, so that the rubber wheel 82 of the fastening assembly 8 tightly abuts against the side surface of the longitudinal beam to adapt to the width of different aluminum alloy door and window frames.

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

[0059] Welding and deformation compensation: the welding assembly 6 is started, when welding, the sliding block 71 of the side clamping assembly 7 is controlled to move in the opposite direction of the longitudinal beam of the turnover frame 4, in this process, the rubber wheel 82 rotates under the action of friction and drives the guide wheel 85 to rotate, the guide wheel 85 twists the torsional spring 92 to accumulate potential energy, and the reverse potential energy of the torsional spring 92 is continuously converted into a pushing force in the direction of the weld through the guide wheel 85 and the rubber wheel 82, so as to dynamically reset the warped longitudinal beam and ensure that the welding joint is tight and gap-free.

[0060] Turnover and positioning: when the welding points on one side are completed, the driving motor 16 is started, the chuck 3 and the turnover frame 4 are rotated by a certain angle through the transmission chain 19, when the rotation reaches the predetermined position, the pneumatic push rod 13 acts to insert the conical lock pin 14 into the positioning lock hole 15 of the chuck 3, so as to realize accurate positioning and locking.

[0061] Unloading workpiece: after welding is completed, the clamp is loosened, the locking of the rotating frame 102 is released, and the aluminum alloy door and window frame is rotated with the turnover frame 4 staggered, at this time, the aluminum alloy door and window frame after welding can be extracted to realize the purpose of quickly disassembling the aluminum alloy door and window frame after welding.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

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 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 compression assembly (9) 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).

3. The welding device for processing aluminum alloy doors and windows as described in claim 2, 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).

4. The welding device for processing aluminum alloy doors and windows as described in claim 3, 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).

5. The welding device for processing aluminum alloy doors and windows as described in claim 4, 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).

6. The welding device for processing aluminum alloy doors and windows as described in claim 5, 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).

7. The welding device for processing aluminum alloy doors and windows as described in claim 6, 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).

8. The welding apparatus for processing aluminum alloy doors and windows as described in claim 7, 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).

9. The welding device for processing aluminum alloy doors and windows as described in claim 8, 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).

10. The welding device for processing aluminum alloy doors and windows as described in claim 9, 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) provided 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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