A seamless welding system for aluminum alloy doors and windows

Abstract

The present invention relates to the technical field of profile welding, and specifically proposes a seamless welding system for aluminum alloy doors and windows; comprising a welding platform, on which a positioning mechanism for horizontally positioning and placing the aluminum alloy doors and windows is installed, and a welding mechanism for performing welding is installed. The welding system provided by the present invention can synchronously complete the one-time covering welding of all joints on the upper and lower surfaces of the aluminum alloy doors and windows, avoiding the trouble of welding on the changed surfaces, and does not require frequent movement and switching of welding positions and automatic alignment, which greatly improves the efficiency of welding and improves the uniformity of welding; in addition, it can meet the welding requirements for aluminum alloy doors and windows of different sizes, and improves the applicability of the system.

Description

Technical Field

[0001] The invention relates to the technical field of profile welding, and specifically proposes a seamless welding system for aluminum alloy doors and windows. Background Art

[0002] Aluminum alloy doors and windows are widely used in residential and commercial buildings because of their light weight, corrosion resistance, high strength and good thermal insulation performance. Aluminum alloy doors and windows are mainly assembled from frames, glass, metal accessories, etc. Fig. 9 The figure shows an aluminum alloy door and window structure, whose frame consists of a rectangular main frame and a baffle installed longitudinally in the rectangular main frame, wherein the rectangular main frame is composed of four frame panels assembled; in the existing assembly and production process of aluminum alloy doors and windows, aluminum alloy profiles are mostly assembled and fixedly connected by screws, rivets or angle brackets, but when it is necessary to enhance the strength and sealing of the aluminum alloy doors and windows, the joints of the aluminum alloy profiles are further welded on the basis of general assembly and fixation to enhance the connectivity between the profiles.

[0003] Under the existing welding conditions, automatic welding equipment is basically used to weld the assembly seams on both sides of aluminum alloy doors and windows. Although the existing automatic welding equipment can realize automatic welding through programming, the following problems still exist: 1) The assembly seams on both sides of the aluminum alloy doors and windows need to be welded, but in actual welding, only single-sided welding can be performed for each aluminum alloy door and window, so the sides need to be changed during the welding process, which affects the welding efficiency and increases the trouble of welding.

[0004] 2) For aluminum alloy doors and windows, there are multiple joints that need to be welded on one side. The existing automatic welding equipment is basically equipped with only a single welding head. During actual welding, the welding position needs to be constantly adjusted, and automatic alignment needs to be performed again at each welding position. The overall welding efficiency is low, and the probability of deviation in welding alignment is increased. Summary of the invention

[0005] In order to solve the above problems, the present invention provides an aluminum alloy door and window seamless welding system, which is used to solve the problems mentioned in the above background technology.

[0006] In order to achieve the above objectives, the present invention adopts the following technical solutions: a seamless welding system for aluminum alloy doors and windows, including a welding table, on which is equipped a positioning mechanism for horizontally positioning the aluminum alloy doors and windows, and a welding mechanism for performing welding.

[0007] The welding mechanism includes two adjustable guide rails installed on the welding table and arranged horizontally opposite to each other. The two adjustable guide rails are movable and adjustable in the relative arrangement direction. The adjustable guide rails include a reference guide rail and two execution guide rails. The reference guide rail is extended in a direction perpendicular to the distribution direction of the two adjustable guide rails. The two execution guide rails are symmetrically slidably arranged on the reference guide rail. The execution guide rail includes a straight line segment and a broken line segment. The straight line segment is slidably adjusted and installed on the reference guide rail. The straight line segment is docked with the reference guide rail; the side end of the straight line segment is open, and the side end of the broken line segment is closed. The guide grooves of the straight line segment and the broken line segment are vertically through.

[0008] A transverse frame is driven and installed on the welding table along the direction of the reference guide rail, and two passive frames are horizontally installed on the transverse frame. The two passive frames are symmetrically slidably arranged in a direction perpendicular to the moving direction of the transverse frame; track blocks are vertically rotatably installed on the two passive frames, and the two track blocks are moved and arranged one by one along the two adjustable guide rails.

[0009] A carry-in assembly is correspondingly installed on the two passive frames, and a vertical guide frame is correspondingly fixed to the carry-in end of the carry-in assembly, and the carry-in assembly drives the vertical guide frame to move horizontally in a direction perpendicular to the reference guide rail; two vertically oppositely arranged welding guns are slidably installed on the vertical guide frame, and the vertical guide frame is also equipped with a driving assembly for driving the two welding guns to slide vertically relative to each other.

[0010] Preferably, the positioning mechanism includes two side baffles and two side baffles, and the two side baffles and the two side baffles are respectively installed on the welding table for horizontal relative sliding, and the sliding directions of the side baffles and the side baffles are relatively perpendicular; the bottom end of the welding table is also equipped with a side clamp driving assembly for synchronously driving the two side baffles to slide relative to each other, and two connecting rod assemblies are connected between the two side baffles and the two side baffles; under the drive of the side clamp driving assembly, when the two side baffles slide synchronously close to each other, the two side baffles slide synchronously close to each other under the drive of the connecting rod assembly.

[0011] Preferably, the side baffle frame includes two sliding bars horizontally slidably installed at the bottom end of the welding table and a side baffle connected between the two sliding bars, and a connecting rod assembly is connected between the two sliding bars and the two side baffles; a sliding block is provided on the side baffle for sliding installation on the welding table; the connecting rod assembly includes a connecting rod hinged on the sliding block, and the other end of the connecting rod is hinged to a sliding plate hinge seat, and the sliding plate hinge seat is slidably adjusted and installed on the corresponding matching sliding bar, and the sliding plate hinge seat slides along the sliding direction of the sliding bar.

[0012] Preferably, the track block is composed of a sliding part 1 and a sliding part 2 respectively, the sliding part 1 is spherical and cooperates with the guide groove of the execution guide rail, and the sliding part 2 is cylindrical and cooperates with the guide groove of the reference guide rail.

[0013] Preferably, the welding gun is provided with a welding gun seat which slides with the vertical guide frame, and a horizontally extending waist-shaped hole is provided on the welding gun seat; the driving assembly includes a driving motor horizontally fixed to the vertical guide frame through a fixing frame, a driving disk is fixed on the output shaft of the driving motor, and two driving pins are vertically fixed on the driving disk relative to the disk surface, and the two driving pins are inserted into the two waist-shaped holes one by one.

[0014] Preferably, the passive frame comprises an L-shaped plate, and the track block is vertically rotatably mounted on the bottom end of the horizontal plate of the L-shaped plate; a guide rod that slidably cooperates with the transverse frame is horizontally fixed on the vertical plate of the L-shaped plate.

[0015] Preferably, when the welding gun performs welding, the welding center point of the welding gun coincides with the center guide line of the adjustable guide rail.

[0016] Preferably, the side clamp drive assembly includes two seat bearings fixed to the bottom end of the welding table surface, and a bidirectional lead screw is horizontally rotatably installed between the two seat bearings; the two side baffles are connected to the two threaded sections of the bidirectional lead screw through a one-to-one corresponding threaded fit of the slider.

[0017] Preferably, the straight section is provided with a sliding foot that slidably cooperates with the reference guide rail; and the sliding foot and the skateboard hinge seat are both provided with an extended hole.

[0018] Preferably, the angle between the straight line segment and the broken line segment is 45°.

[0019] The above technical scheme has the following advantages or beneficial effects: the present invention provides a seamless welding system for aluminum alloy doors and windows, which is provided with a positioning mechanism for welding positioning of aluminum alloy doors and windows, and a welding mechanism is matched with the positioning mechanism. In the welding mechanism, two groups of welding guns are provided, and each group of welding guns is distributed up and down, and an adjustable guide rail is provided with a positioning mechanism as a reference, so that in the process of unidirectional movement, the one-time covering welding of all joints on the upper and lower surfaces of the aluminum alloy doors and windows can be synchronously completed through the two groups of welding guns and the automatic guidance of the adjustable guide rail, avoiding the trouble of changing the surface welding, and there is no need to frequently move and switch the welding position and automatically align, which greatly improves the welding efficiency and improves the uniformity of welding; in addition, the positioning mechanism adopts an adjustable design, and the adjustable guide rail is also provided with an adjustment structure therewith, which can meet the welding requirements for aluminum alloy doors and windows of different sizes and improve the applicability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention and its features, configurations and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts throughout the drawings, which are not drawn to scale, with emphasis on illustrating the subject matter of the present invention.

[0021] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a seamless welding system for aluminum alloy doors and windows.

[0022] Figure 2 It is a front view of a seamless welding system for aluminum alloy doors and windows provided by the present invention.

[0023] Figure 3 It is a side view of a seamless welding system for aluminum alloy doors and windows provided by the present invention.

[0024] Figure 4 The present invention provides a top view of a seamless welding system for aluminum alloy doors and windows.

[0025] Figure 5 yes Figure 4 Sectional view of AA.

[0026] Figure 6 It is a three-dimensional assembly drawing of the positioning mechanism and the welding table installation.

[0027] Figure 7 It is a three-dimensional structural diagram of the welding mechanism.

[0028] Figure 8 It is a three-dimensional structural diagram of the adjustable guide rail.

[0029] Fig. 9 It is a three-dimensional structural diagram of aluminum alloy doors and windows.

[0030] In the figure: 1, welding table; 11, No. 1 slide rail; 12, No. 2 slide rail; 13, suspension frame; 131, No. 3 slide rail; 2, positioning mechanism; 21, side stop frame; 211, sliding bar; 212, side stop bar; 22, side stop plate; 221, slider; 23, side clamp drive assembly; 231, seat bearing; 232, two-way lead screw; 24, connecting rod assembly; 241, connecting rod; 242, slide plate hinge seat; 3, welding mechanism; 31, adjustable guide rail; 311, reference guide rail; 312, execution guide rail; 3121, straight line segment; 3 122. Broken line segment; 3123. Sliding foot; 32. Transverse frame; 33. Passive frame; 331. L-shaped plate; 332. Guide rod; 34. Track block; 341. Sliding part one; 342. Sliding part two; 35. Carrying assembly; 351. Carrying cylinder; 352. Sliding base; 36. Vertical guide frame; 37. Welding gun; 371. Welding gun seat; 372. Waist-shaped hole; 38. Driving assembly; 381. Driving motor; 382. Driving disk; 383. Driving pin; 4. Aluminum alloy doors and windows; 41. Frame plate; 42. Baffle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] like Figure 1 and Figure 4 As shown, a seamless welding system for aluminum alloy doors and windows includes a welding platform 1, on which a positioning mechanism 2 for horizontally positioning the aluminum alloy doors and windows 4 is installed, and a welding mechanism 3 for performing welding is installed. Fig. 9 As shown, the present invention is not limited to the specific structure shown in the figure, but has the common feature that the four frame plates 41 constituting the main frame are all spliced ​​and assembled with 45° beveled edges, and the baffle plate 42 and two of the frame plates 41 are spliced ​​and assembled with straight edges. The welding system provided by the present invention is mainly used for welding the splicing seams between the frame plates 41 and the frame plates 41 and between the frame plates 41 and the baffle plates 42 after the initial assembly of the aluminum alloy doors and windows 4 with the above characteristics.

[0034] like Figure 1 and Figure 6As shown, the welding table 1 is in the form of a rectangular table top, and two horizontally opposed No. 1 slide rails 11 are welded to the bottom of the table top of the welding table 1. The two No. 1 slide rails 11 are distributed one by one and centrally at two opposite rectangular sides of the welding table 1. A group of No. 2 slide rails 12 are welded to both sides of the two No. 1 slide rails 11 at the bottom of the table top of the welding table 1. The number of each group of No. 2 slide rails 12 is two, and the No. 2 slide rails 12 are vertically arranged relative to the No. 1 slide rails 11.

[0035] like Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the positioning mechanism 2 includes two side baffles 21 and two side baffles 22. The side baffles 22 are located on the surface of the welding table 1. A slider 221 is welded to the lower end of the side baffles 22. The two side baffles 22 pass through the surface of the welding table 1 through the slider 221 and are slidably installed on the two No. 1 slide rails 11 in a one-to-one manner; the two side baffles 21 are mounted on two groups of No. 2 slide rails 12 in a one-to-one manner, and the side baffles 21 include two sliding bars 211 slidably installed on the two No. 2 slide rails 12 in a one-to-one manner and a side baffle 212 welded between the two sliding bars 211; in each side baffle 21, a sliding bar 2 A connecting rod assembly 24 is connected between 11 and a slider 221, and a connecting rod assembly 24 is also connected between another slider 211 and another slider 221; the connecting rod assembly 24 includes a connecting rod 241 hinged on the slider 221, and the other end of the connecting rod 241 is hinged to a slide plate hinge seat 242, and the slide plate hinge seat 242 is slidably adjusted and installed on the corresponding matching slide bar 211, and the slide plate hinge seat 242 slides along the sliding direction of the slide bar 211, and an extension hole is provided on the slide plate hinge seat 242 to facilitate the relative adjustment between the slide plate hinge seat 242 and the slide bar 211, and is locked by a nut after adjustment.

[0036] like Figure 3 and Figure 6 As shown, the bottom end of the welding table 1 is also equipped with a side clamp driving assembly 23 for synchronously driving the two side baffles 22 to slide relative to each other. The side clamp driving assembly 23 includes two seat bearings 231 fixed to the bottom end of the welding table 1 by bolts. A bidirectional lead screw 232 is installed horizontally and rotatably between the two seat bearings 231, and the bidirectional lead screw 232 can be driven by a motor; the two side baffles 22 are connected to the two threaded sections of the bidirectional lead screw 232 through the slider 221 in a one-to-one threaded matching. Under the drive of the side clamp driving assembly 23, when the two side baffles 22 are synchronously close to each other and slide, the two side baffles 21 are synchronously close to each other and slide under the drive of the connecting rod assembly 24.

[0037] When positioning the aluminum alloy door and window 4, the aluminum alloy door and window 4 is placed on the surface of the welding table 1. Subsequently, under the drive of the side clamp driving assembly 23, two frame plates 41 at relative positions will be clamped between the two side baffles 22, and the other two frame plates 41 at relative positions will be clamped between the two side baffles 212. After positioning and clamping, the aluminum alloy door and window 4 is in the processing position to be welded, so as to facilitate the subsequent welding mechanism 3 to align and weld. It should be noted that, in the clamped state, the side baffles 22 and the side baffles 212 both avoid the joint position to be welded. In the positioning mechanism 2, since the side clamp driving assembly 23 is used to directly drive the two side baffles 22 relative to the slider 221, and the two side baffle frames 21 are indirectly driven by the connecting rod assembly 24, the positioning mechanism 2 can be adjusted in advance when welding aluminum alloy doors and windows 4 of the same size and the same batch. Specifically, first, the slide plate hinge seat 242 is loosened from the sliding bar 211, and then the aluminum alloy door and window 4 is clamped and debugged through the positioning mechanism 2, and the aluminum alloy door and window 4 is placed in the center position of the welding table 1 table top, and based on the two side baffles 22 completing the clamping of the aluminum alloy door and window 4, the two side baffle frames 21 are moved so that the two side baffles 212 are in contact with the aluminum alloy door and window 4, and finally, the slide plate hinge seat 242 and the sliding bar 211 are locked again, thereby completing the entire clamping and debugging; the positionable clamping and debugging design meets the welding positioning requirements for aluminum alloy doors and windows 4 of various sizes.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8As shown, a suspension frame 13 is welded to the bottom of the welding table 1, and the suspension frame 13 is composed of two vertical plates welded to the bottom of the welding table 1 and a horizontal plate welded to the bottom of the two vertical plates; two No. 3 slide rails 131 are horizontally welded on both sides of the two vertical plates on the horizontal plate, and the No. 3 slide rail 131 is arranged parallel to the No. 2 slide rail 12; the welding mechanism 3 includes two horizontally symmetrically arranged adjustable guide rails 31, and the two adjustable guide rails 31 are distributed on both sides of the two vertical plates. The adjustable guide rails 31 include a reference guide rail 311 and two execution guide rails 312. The reference guide rail 311 is slidably installed on the two No. 3 slide rails 131 through a slide plate. The quasi-guide rail 311 is extended and arranged perpendicular to the distribution direction of the two adjustable guide rails 31. The two execution guide rails 312 are symmetrically slidably arranged on the reference guide rail 311. The execution guide rail 312 includes a straight segment 3121 and a broken line segment 3122. The angle between the straight segment 3121 and the broken line segment 3122 is 45°. The straight segment 3121 is slidably installed on the reference guide rail 311 through a sliding foot 3123. In order to facilitate the sliding adjustment of the straight segment 3121 along the reference guide rail 311, an extended hole is arranged on the sliding foot 3123. The bolt passing through the extended hole realizes the locking between the straight segment 3121 and the reference guide rail 311. The straight segment 3121 is arranged to be docked with the reference guide rail 311. The side end of the straight segment 3121 is opened, and the side end of the broken line segment 3122 is closed. The guide grooves of the straight segment 3121 and the broken line segment 3122 are arranged to be vertically connected.

[0039] like Fig. 9 As shown, in the aluminum alloy door and window 4, the assembly and splicing of the baffle plate 42 and two frame plates 41 parallel to the baffle plate and the other two frame plates 41 constitute two sets of seams to be welded. In the present invention, the two sets of seams are guided and welded by two adjustable guide rails 31, and when welding aluminum alloy doors and windows 4 of various sizes, the two adjustable guide rails 31 can be adjusted accordingly on the basis of the positioning and clamping completed by the positioning mechanism 2. First, the two reference guide rails 311 are adjusted by sliding so that the two reference guide rails 31 1 is aligned one by one with the horizontal seams in the two sets of seams, a bidirectional screw can be assembled between the slides of the two reference guide rails 311 for quick adjustment, and then the execution guide rail 312 is loosened from the reference guide rail 311, and the four execution guide rails 312 are moved respectively, so that the guide center lines of the broken line segments 3122 in the four execution guide rails 312 are contacted and aligned one by one with the four 45° bevel edges in the two sets of seams, and finally, the execution guide rail 312 is re-locked on the reference guide rail 311.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7As shown in the figure, a cross - moving frame 32 is driven and installed along the direction of the reference guide rail 311 on the welding table 1. The cross - moving frame 32 is in the shape of a C - shaped frame structure. The cross - moving frame 32 can achieve linear displacement drive in a variety of existing ways. For example, it can adopt motor - lead screw drive. Two passive frames 33 are horizontally assembled on the cross - moving frame 32. The two passive frames 33 are symmetrically slidably arranged in a direction perpendicular to the moving direction of the cross - moving frame 32. The passive frame 33 includes an L - shaped plate 331. A guide rod 332 that is slidably matched with the cross - moving frame 32 is horizontally welded on the vertical plate of the L - shaped plate 331. The guide rod 332 is a square rod. Two track blocks 34 are vertically rotatably installed at the bottom ends of the horizontal plates of the two passive frames 33. The two track blocks 34 are movably arranged in correspondence along the two adjustable guide rails 31. The track block 34 has a sliding part one 341 and a sliding part two 342 in sequence from top to bottom. The sliding part one 341 is spherical and is matched with the guide groove of the execution guide rail 312. The sliding part two 342 is cylindrical, and the sliding part two 342 is matched with the guide groove of the reference guide rail 311. When the track block 34 moves along both the reference guide rail 311 and the straight - line segment 3121 of the execution guide rail 312 at the same time, the sliding part one 341 slides along the straight - line segment 3121, while the sliding part two 342 passes through the straight - line segment 3121 and slides along the reference guide rail 311.

[0041] As Figure 2 , Figure 5 and Figure 7 As shown in the figures, carry - in components 35 are correspondingly installed at the top ends of the horizontal plates of the two L - shaped plates 331. The carry - in component 35 includes a carry - in cylinder 351 horizontally fixed to the end of the horizontal plate of the L - shaped plate 331 through a fixing plate. The carry - in cylinder 351 expands and contracts in a direction perpendicular to the reference guide rail 311. A sliding base 352 is fixed to the output end of the carry - in cylinder 351. The sliding base 352 is slidably installed on the horizontal plate of the L - shaped plate 331. A vertical guide frame 36 is correspondingly welded on the sliding base 352. Two welding torches 37 that are vertically opposite to each other are slidably installed on the vertical guide rail. In the present invention, the welding torch 37 is an existing laser welder. A driving component 38 for driving the two welding torches 37 to slide vertically relative to each other is also assembled on the vertical guide rail. A welding torch seat 371 that is slidably matched with the vertical guide frame 36 is welded on the welding torch 37. A horizontally extending waist - shaped hole 372 is opened on the welding torch seat 371. The driving component 38 includes a driving motor 381 horizontally welded to the vertical guide frame 36 through a fixing frame. A driving disk 382 is fixed to the output shaft of the driving motor 381. Two driving pins 383 are perpendicularly fixed to the relative disk surfaces of the driving disk 382. The two driving pins 383 are distributed on the same diameter line of the driving disk 382 and are equidistant from the disk center. The two driving pins 383 are correspondingly inserted into the two waist - shaped holes 372.

[0042] In the present invention, two groups of welding guns 37 are provided, and the two groups of welding guns 37 are used to weld two groups of seams on the same surface of the aluminum alloy door and window 4, and the two welding guns 37 distributed up and down in each group are used to weld two seams on the same side of the upper and lower surfaces of the aluminum alloy door and window 4. Before the aluminum alloy door and window 4 is placed and positioned, it is necessary to synchronously start the two advancing cylinders 351 so that the two sliding bases 352 slide away from each other, thereby pulling the distance between the two groups of welding guns 37 apart, mainly so that the welding gun 37 located at the top of each group avoids the aluminum alloy door and window 4. After moving away, the aluminum alloy door and window 4 can be placed on the table of the welding table 1, and positioned and clamped by the positioning mechanism 2, and then the advancing cylinder 351 is started again, so that the two groups of welding guns 37 are moved and reset, and the aluminum alloy door and window 4 is located between the upper and lower welding guns 37. It should be added that, in the present invention, when the welding gun 37 is in the reset state, the welding center point of the welding gun 37 coincides with the center guide line of the adjustable guide rail 31. In addition, when adjusting the two adjustable guide rails 31, the welding gun 37 can be in the reset state, and the welding gun 37 can be aligned with the seam as a standard, thereby facilitating the guidance to complete the rapid adjustment.

[0043] Subsequently, the welding mechanism 3 is used to synchronously weld the joints of the upper and lower surfaces of the aluminum alloy door and window 4. Specifically, the two groups of welding guns 37 are driven to make the main displacement by the transverse frame. While moving, the track block 34 is passively moved along the adjustable track. When the track block 34 moves along the broken line segment 3122 of one of the execution guide rails 312, the driving motor 381 drives the driving disk 382 to rotate a certain angle, and pulls the two welding gun seats 371 through the driving pin 383, so that the two welding guns 37 are used to weld the upper and lower two 45° beveled seams of one group of the aluminum alloy door and window 4. When the track block 34 moves along the reference guide rail 311, the upper and lower welding guns 37 weld the two upper and lower straight seams; when the track block 34 moves along the broken line segment 3122 of another execution guide rail 312, the upper and lower welding guns 37 weld another group of two upper and lower 45° bevel seams; thus, under the unidirectional lateral movement drive of the lateral moving frame 32, the two groups of seams on the upper and lower surfaces of the aluminum alloy door and window 4 can be synchronously welded by two groups of welding guns 37, and when welding the next aluminum alloy door and window 4, the lateral moving frame 32 only needs to move in the opposite direction.

[0044] The present invention provides a seamless welding system for aluminum alloy doors and windows, which is provided with a positioning mechanism 2 for welding positioning of the aluminum alloy doors and windows 4, and a welding mechanism 3 is matched with the positioning mechanism 2. In the welding mechanism 3, two groups of welding guns 37 are provided, and each group of welding guns 37 is distributed up and down, and an adjustable guide rail 31 with the positioning mechanism 2 as a reference is provided, so that in the process of unidirectional movement, through the two groups of welding guns 37 and the automatic guidance of the adjustable guide rail 31, the one-time covering welding of all joints on the upper and lower surfaces of the aluminum alloy doors and windows 4 can be synchronously completed, avoiding the trouble of welding on the changed surfaces, and there is no need to frequently move and switch the welding position and automatically align, which greatly improves the welding efficiency and improves the uniformity of welding; in addition, the positioning mechanism 2 adopts an adjustable design, and the adjustable guide rail 31 is also provided with an adjustment structure therewith, which can meet the welding requirements for aluminum alloy doors and windows 4 of different sizes, and improves the applicability of the system.

[0045] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0047] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A seamless welding system for aluminum alloy doors and windows, comprising a welding table (1), characterized in that: The welding table (1) is equipped with a positioning mechanism (2) for horizontally positioning the aluminum alloy door and window (4), and a welding mechanism (3) for performing welding; wherein: The welding mechanism (3) comprises two adjustable guide rails (31) mounted on the welding table (1) and arranged horizontally opposite to each other. The two adjustable guide rails (31) are movable and adjustable in a relative arrangement direction. The adjustable guide rails (31) comprise a reference guide rail (311) and two execution guide rails (312). The reference guide rail (311) extends in a direction perpendicular to the distribution direction of the two adjustable guide rails (31). The two execution guide rails (312) are symmetrically slidably arranged on the reference guide rail (311). ), the execution guide rail (312) comprises a straight section (3121) and a broken line section (3122), the straight section (3121) is slidably mounted on the reference guide rail (311), the straight section (3121) and the reference guide rail (311) are butt-jointed; the side end of the straight section (3121) is open, the side end of the broken line section (3122) is closed, and the guide grooves of the straight section (3121) and the broken line section (3122) are vertically connected; A transverse frame (32) is installed on the welding table (1) for driving along the direction of the reference guide rail (311); two passive frames (33) are installed horizontally on the transverse frame (32); the two passive frames (33) are symmetrically slidably arranged in a direction perpendicular to the moving direction of the transverse frame (32); track blocks (34) are installed vertically and rotatably on the two passive frames (33); the two track blocks (34) are arranged to move in a one-to-one correspondence along the two adjustable guide rails (31); A carrying assembly (35) is correspondingly mounted on each of the two passive frames (33); a vertical guide frame (36) is correspondingly fixed to the carrying end of the carrying assembly (35); the carrying assembly (35) drives the vertical guide frame (36) to move horizontally in a direction perpendicular to the reference guide rail (311); two welding guns (37) arranged vertically opposite to each other are slidably mounted on the vertical guide frame (36); a driving assembly (38) for driving the two welding guns (37) to slide vertically relative to each other is also mounted on the vertical guide frame (36); The track block (34) is composed of a sliding part 1 (341) and a sliding part 2 (342) in upper and lower parts, the sliding part 1 (341) is spherical, and the sliding part 1 (341) cooperates with the guide groove of the execution guide rail (312), and the sliding part 2 (342) is cylindrical, and the sliding part 2 (342) cooperates with the guide groove of the reference guide rail (311); The welding gun (37) is provided with a welding gun seat (371) that is slidably matched with the vertical guide frame (36), and the welding gun seat (371) is provided with a horizontally extending waist-shaped hole (372); the driving assembly (38) comprises a driving motor (381) that is horizontally fixed to the vertical guide frame (36) through a fixing frame, and a driving disk (382) is fixed on the output shaft of the driving motor (381), and two driving pins (383) are fixed on the driving disk (382) vertically relative to the disk surface, and the two driving pins (383) are plugged into the two waist-shaped holes (372) in a one-to-one corresponding manner; The passive frame (33) comprises an L-shaped plate (331), and the track block (34) is mounted vertically and rotatably on the bottom end of the horizontal plate of the L-shaped plate (331); a guide rod (332) that is slidably matched with the transverse frame (32) is horizontally fixed on the vertical plate of the L-shaped plate (331).

2. The aluminum alloy door and window seamless welding system according to claim 1, characterized in that: The positioning mechanism (2) comprises two side baffles (21) and two side baffles (22), the two side baffles (21) and the two side baffles (22) are respectively mounted on the welding table (1) in a horizontally relatively slidable manner, and the sliding directions of the side baffles (21) and the side baffles (22) are relatively perpendicular; the bottom end of the welding table (1) is also equipped with a side clamp driving assembly (23) for synchronously driving the two side baffles (22) to slide relative to each other, and two connecting rod assemblies (24) are connected between the two side baffles (22) and the two side baffles (21); under the drive of the side clamp driving assembly (23), when the two side baffles (22) slide synchronously towards each other, the two side baffles (21) slide synchronously towards each other under the drive of the connecting rod assembly (24).

3. The seamless welding system for aluminum alloy doors and windows according to claim 2 is characterized in that: The side baffle frame (21) comprises two sliding bars (211) horizontally slidably mounted on the bottom end of the welding table (1) and a side baffle (212) connected between the two sliding bars (211); a connecting rod assembly (24) is connected between the two sliding bars (211) and the two side baffles (22); a sliding block (221) is provided on the side baffle (22) and penetrates and slides on the welding table (1); the connecting rod assembly (24) comprises a connecting rod (241) hinged on the sliding block (221); the other end of the connecting rod (241) is hinged to a sliding plate hinge seat (242); the sliding plate hinge seat (242) is slidably mounted on the corresponding matching sliding bar (211), and the sliding plate hinge seat (242) slides along the sliding direction of the sliding bar (211).

4. The aluminum alloy door and window seamless welding system according to claim 1, characterized in that: When the welding gun (37) performs welding, the welding center point of the welding gun (37) coincides with the center guide line of the adjustable guide rail (31).

5. The seamless welding system for aluminum alloy doors and windows according to claim 3 is characterized by: The side clamp driving assembly (23) comprises two seat bearings (231) fixed to the bottom end of the welding table (1), a bidirectional lead screw (232) being mounted between the two seat bearings (231) for horizontal rotation; the two side baffles (22) are connected to two threaded sections of the bidirectional lead screw (232) in a one-to-one corresponding threaded manner via sliders (221).

6. The aluminum alloy door and window seamless welding system according to claim 3, characterized in that: The straight line segment (3121) is provided with a sliding foot (3123) that is slidably matched with the reference guide rail (311); and the sliding foot (3123) and the slide plate hinge seat (242) are both provided with an extended hole.

7. The aluminum alloy door and window seamless welding system according to claim 1, characterized in that: The included angle between the straight line segment (3121) and the broken line segment (3122) is 45°.

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