Automatic welding device for doors and windows

Abstract

The invention discloses an automatic door and window welding device, and relates to the technical field of door and window welding, the automatic door and window welding device comprises a support frame, the top of the support frame is fixedly connected with a three-axis moving module, the top moving end of the three-axis moving module is fixedly connected with a vertical gun, and the vertical gun is provided with a rotating mechanism; the rotating mechanism comprises a supporting plate fixedly connected to the side wall of the vertical gun, the lower surface of the supporting plate is fixedly connected with a first stepping motor, the output shaft end of the first stepping motor is fixedly connected with a fixing plate, and the end, away from the first stepping motor, of the fixing plate is fixedly connected with an oxyacetylene spray gun. Through the arrangement of the overturning mechanism, welding and burning cleaning can be automatically conducted on the front face and the back face of the door and window, manual carrying and door and window overturning are not needed through automatic overturning, a large amount of time and labor cost are saved firstly, and the welding and burning cleaning process can be completed along with the high temperature. Therefore, the situation of scalding caused by manual overturning is avoided, and meanwhile, the time for waiting for temperature reduction and then overturning can be shortened.

Description

Technical Field

[0001] The invention relates to the technical field of door and window welding, and in particular to an automatic door and window welding device. Background Art

[0002] In the existing door and window welding technology, the gaps between doors and windows need to be welded by a high-temperature welding gun.

[0003] In the existing door and window welding devices, the doors and windows need to be welded on both sides during the welding process, so they need to be manually carried and turned over by humans, which requires a lot of time and manpower costs. At the same time, due to the high temperature environment during the welding process, burns may occur due to manual turning. Under the traditional method, after welding, the workpiece needs to be transferred to a special cleaning area for the burning and cleaning work steps, so the staff needs to manually replace the burning and cleaning device, which further prolongs the welding time of the doors and windows. At the same time, the doors and windows need to be transported after welding and burning and cleaning. After welding the doors and windows with the existing door and window welding devices, the doors and windows need to be manually carried or transferred using other auxiliary tools, and the transfer process will be not smooth, resulting in production stagnation. At the same time, manual handling may cause collisions, scratches, etc., which may cause damage and deformation of the door and window surfaces, thereby failing to guarantee the quality and appearance of the doors and windows, and the small processing site may lead to obstruction and inconvenience in transporting the doors and windows.

[0004] Therefore, a door and window automatic welding device is proposed. Summary of the invention

[0005] The object of the present invention is to provide an automatic door and window welding device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic welding device for doors and windows, comprising a support frame, a three-axis movable module is fixedly connected to the top of the support frame, a vertical gun is fixedly connected to the top moving end of the three-axis movable module, and a rotating mechanism is arranged on the vertical gun; the rotating mechanism comprises a support plate fixedly connected to the side wall of the vertical gun, a first stepper motor is fixedly connected to the lower surface of the support plate, a fixed plate is fixedly connected to the output shaft end of the first stepper motor, an oxyacetylene spray gun is fixedly connected to one end of the fixed plate away from the first stepper motor, and a tilting gun is fixedly connected to one end of the fixed plate away from the first stepper motor.

[0007] Furthermore, a flipping mechanism is provided on the support frame, and the flipping mechanism includes a notch opened on the upper surface of the support frame, the inner wall of the notch is fixedly connected to a second stepper motor, the output shaft end of the second stepper motor is fixedly connected to a rectangular frame, and the inner wall of the rectangular frame is symmetrically fixedly connected to two groups of electric telescopic rods 1, each group of the electric telescopic rods 1 is provided with no less than two, and each of the electric telescopic rods 1 is fixedly connected to a clamping block on a side away from the rectangular frame.

[0008] Furthermore, a connecting mechanism is provided on the support frame, and the connecting mechanism includes a gear fixedly connected to the outer side of the output end of the second stepper motor, a clamping plate is fixedly connected to the inner wall of the support frame, and a gear rod is slidably connected to the inner side of the clamping plate, a connecting block 1 is fixedly connected to the upper surface of the support frame, and a touch button 1 is installed on the side of the connecting block 1 close to the gear rod, and a connecting block 2 is fixedly connected to the lower surface of the support frame, and a touch button 2 is installed on the side of the connecting block 2 close to the bottom of the gear rod.

[0009] Furthermore, a tilting assembly is provided inside the support frame, and the tilting assembly includes two electric telescopic rods fixedly connected to the inner wall of the support frame, the inner wall of the support frame is symmetrically provided with a groove one, and the inner wall of the support frame is symmetrically provided with a groove two, each of the grooves two is slidably connected with a connecting column, each of the grooves one is slidably connected with a sliding block, a vertical plate is fixedly connected between the two connecting columns, a horizontal plate is fixedly connected between the two sliding blocks, and the side walls of the vertical plates are symmetrically provided with grooves three.

[0010] Furthermore, conveyor belts are sleeved on both sides of the support frame, and the conveyor belts are located directly below the notch.

[0011] Furthermore, a side of the rectangular frame away from the second stepping motor is rotatably connected to the support frame, and the four clamping blocks are arranged symmetrically with each other.

[0012] Furthermore, the gear and the gear rod are meshed with each other, the touch button 1 controls the opening and closing of the first stepper motor through the controller, and the touch button 2 controls the opening and closing of the electric telescopic rod 2 through the controller.

[0013] Further, the first touch button is located on the movement path of the gear rod, and the second touch button is located on the movement path of the gear rod.

[0014] Furthermore, the transverse plate is movably connected to the two grooves, and the notch is located on the movement path of the transverse plate.

[0015] Furthermore, the telescopic shaft end of the second electric telescopic rod is fixedly connected to the vertical plate, and the conveyor belt is located on the movement path of the horizontal plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The setting of the flipping mechanism can realize automatic welding and burning cleaning of both sides of doors and windows. Automatic flipping does not require manual handling and flipping of doors and windows, which firstly saves a lot of time and labor costs. Secondly, the welding and burning cleaning process can be accompanied by high temperature, thus avoiding burns caused by manual flipping. At the same time, it can also reduce the time required to wait for the temperature to drop before flipping, thereby improving the efficiency of door and window welding.

[0018] The setting of the rotating mechanism avoids the traditional step of transferring the workpiece to a special cleaning area for burn-off cleaning after welding. The rotating mechanism allows welding and burn-off cleaning to be quickly switched at the same position through rotation, greatly reducing the time for transportation and positioning during process conversion, further improving the welding efficiency of doors and windows. At the same time, the rotating mechanism allows the welding device and the burn-off cleaning device to work alternately. When one device is working, the other device can perform preparatory work. For example, when the inclined gun and the vertical gun are welding, the oxyacetylene spray gun can be preheated in advance, etc., making the entire production process more coherent and reducing equipment idle time.

[0019] By setting up the tilting mechanism, with the help of the tilting angle of the tilting plate, the doors and windows can automatically slide onto the conveyor belt under the action of gravity, without the need for manual handling or the use of other auxiliary tools for transfer. The connection between the tilting plate and the conveyor belt is relatively fixed and smooth, which can achieve the rapid transition of doors and windows from the welding and cleaning position to the conveyor belt, making the entire production process more coherent and reducing production stagnation caused by an unsmooth transfer process. Compared with collisions, scratches, etc. caused by manual handling, the method of slowly sliding down to the conveyor belt through the tilting plate is more stable, which can effectively reduce the probability of collision between doors and windows and other objects and reduce the risk of damage and deformation of the surface of doors and windows, thereby ensuring the quality and appearance of doors and windows.

[0020] By coordinating the connection mechanism with the flipping mechanism, the rotating mechanism and the tilting mechanism, different mechanisms can be driven to work during the flipping of the doors and windows, thereby achieving automatic welding of the doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a three-dimensional schematic diagram of the three-axis moving module and the vertical gun structure of the present invention;

[0023] Figure 3 For the present invention Figure 2 A schematic diagram of the structure enlargement in the middle;

[0024] Figure 4It is a three-dimensional schematic diagram of the support frame and conveyor belt structure of the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the support frame and the notch structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0027] Figure 7 It is a three-dimensional schematic diagram of the connecting mechanism structure of the present invention;

[0028] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at C in the middle;

[0029] Fig. 9 It is a three-dimensional schematic diagram of the supporting frame and the electric telescopic rod of the present invention;

[0030] Fig.10 It is a three-dimensional schematic diagram of the tilting mechanism structure of the present invention;

[0031] Fig.11 It is a three-dimensional schematic diagram of the support frame, groove 1 and groove 2 structures of the present invention;

[0032] Fig.12 For the present invention Fig.11 Enlarged schematic diagram of the structure at point D in the middle.

[0033] In the figure:

[0034] 1. Support frame; 2. Three-axis moving module; 3. Vertical gun;

[0035] The rotating mechanism includes: 4. a supporting plate; 5. a first stepper motor; 6. a fixing plate; 7. an oxyacetylene spray gun; 8. a tilting gun;

[0036] The flip mechanism includes: 9, a notch; 10, a second stepping motor; 11, a rectangular frame; 12, an electric telescopic rod; 13, a clamping block;

[0037] The connecting mechanism includes: 14, gear; 15, clamping plate; 16, gear rod; 17, connecting block 1; 18, touch button 1; 19, connecting block 2; 20, touch button 2;

[0038] The tilting mechanism includes: 21, electric telescopic rod 2; 22, groove 1; 23, groove 2; 24, connecting column; 25, sliding block; 26, vertical plate; 27, horizontal plate; 28, groove 3;

[0039] 29. Conveyor belt. DETAILED DESCRIPTION

[0040] 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.

[0041] See also Figures 1 to 12 , is an embodiment provided by the present invention: an automatic door and window welding device, comprising a support frame 1, a three-axis moving module 2 is fixedly connected to the top of the support frame 1, a vertical gun 3 is fixedly connected to the top moving end of the three-axis moving module 2, the vertical gun 3 can realize the welding of straight or regular shape welds of components such as door and window frames, and a rotating mechanism is arranged on the vertical gun 3;

[0042] The rotating mechanism includes a support plate 4 fixedly connected to the side wall of the vertical gun 3, a first stepper motor 5 is fixedly connected to the lower surface of the support plate 4, a fixed plate 6 is fixedly connected to the output shaft end of the first stepper motor 5, an oxyacetylene spray gun 7 is fixedly connected to the end of the fixed plate 6 away from the first stepper motor 5, a tilting gun 8 is fixedly connected to the end of the fixed plate 6 away from the first stepper motor 5, the tilting gun 8 can meet the requirements of different door and window shapes, sizes and welding positions, and the first stepper motor 5 is tilted toward the lower end of the vertical gun 3, which allows the nozzles of the oxyacetylene spray gun 7 and the tilting gun 8 to be oriented toward the nozzle of the vertical gun 3.

[0043] A flipping mechanism is provided on the support frame 1, and the flipping mechanism includes a notch 9 opened on the upper surface of the support frame 1, and the inner wall of the notch 9 is fixedly connected to the second stepper motor 10, and the output shaft end of the second stepper motor 10 is fixedly connected to a rectangular frame 11, and the rectangular frame 11 is placed in the notch 9, and the side of the rectangular frame 11 away from the second stepper motor 10 is rotatably connected to the support frame 1, and two groups of electric telescopic rods 12 are symmetrically fixedly connected to the inner wall of the rectangular frame 11, and each group of electric telescopic rods 12 is provided with no less than two, and each electric telescopic rod 12 is fixedly connected to a clamping block 13 on the side away from the rectangular frame 11, and the four clamping blocks 13 are arranged symmetrically with each other.

[0044] A connecting mechanism is provided on the support frame 1, and the connecting mechanism includes a gear 14 fixedly connected to the outer side of the output end of the second stepper motor 10, a card plate 15 is fixedly connected to the inner wall of the support frame 1, and the gear 14 and the card plate 15 are placed between the notch 9 and the rectangular frame 11, and a gear rod 16 is slidably connected to the inner side of the card plate 15, and the gear 14 and the gear rod 16 are meshed with each other, and a connecting block 17 is fixedly connected to the upper surface of the support frame 1, and a touch button 18 is installed on the side of the connecting block 17 close to the gear rod 16, and the touch button 18 controls the opening and closing of the first stepper motor 5 through the controller, and the touch button 18 is located on the movement path of the gear rod 16, and a connecting block 2 19 is fixedly connected to the lower surface of the support frame 1, and a touch button 2 20 is installed on the side of the connecting block 2 19 close to the bottom of the gear rod 16, and the touch button 2 20 controls the opening and closing of the electric telescopic rod 21 through the controller, and the touch button 2 20 is located on the movement path of the gear rod 16.

[0045] A tilting assembly is provided inside the support frame 1, and the tilting assembly includes an electric telescopic rod 21 fixedly connected to the inner wall of the support frame 1, a groove 22 is symmetrically provided on the inner wall of the support frame 1, a groove 23 is symmetrically provided on the inner wall of the support frame 1, and the groove 23 is located below the groove 1 22, a connecting column 24 is slidably connected inside each groove 23, a sliding block 25 is slidably connected inside each groove 1 22, a vertical plate 26 is fixedly connected between the two connecting columns 24, a horizontal plate 27 is fixedly connected between the two sliding blocks 25, and the sliding block 25 and the connecting column 24 are staggered, the notch 9 is located on the movement path of the horizontal plate 27, the side wall of the vertical plate is symmetrically provided with grooves 3 28, the horizontal plate 27 is movably connected to the two grooves 3 28, and the telescopic shaft end of the electric telescopic rod 21 is fixedly connected to the vertical plate 26.

[0046] Conveyor belts 29 are sleeved on both sides of the support frame 1 , and the conveyor belts 29 are located directly below the notch 9 , and the conveyor belts 29 are located on the movement path of the transverse plate 27 .

[0047] The above implementation works as follows:

[0048] The initialization steps are as follows:

[0049] The staff first tilts the doors and windows to be welded and presses them against the inside of the block 13 on the same side. At the same time, the staff uses the side of the pressing block 13 as the horizontal plane to horizontally press the doors and windows to be welded into the four blocks 13. At the same time, the staff starts the electric telescopic rod 12, which drives the block 13 to approach the side wall of the doors and windows to be welded, thereby fixing the doors and windows to be welded.

[0050] The working steps are as follows:

[0051] The working steps for the first welding are as follows:

[0052] As described in the initialization step, when the side walls of the doors and windows that need to be welded are fixedly clamped by four clamping blocks 13, the three-axis mobile module 2 drives the vertical gun 3 to weld the four corners of the doors and windows according to the set movement path through the parameters set in the controller in advance. At the same time, the vertical gun 3 drives the tilting gun 8 to move synchronously, so that the vertical gun 3 and the tilting gun 8 both weld the four corners of the doors and windows.

[0053] The working steps of the flip component are as follows:

[0054] When the first welding is completed, the staff controls the second stepper motor 10 to be energized through the controller. After the second stepper motor 10 is energized, its output shaft end drives the gear 14 to rotate 180 degrees clockwise. At the same time, the output shaft end of the second stepper motor 10 drives the rectangular frame 11 to rotate 180 degrees clockwise. Therefore, the rectangular frame 11 drives the electric telescopic rod 12 and the clamping block 13 to move synchronously, so that the doors and windows are also flipped 180 degrees due to the clamping of the clamping block 13, so that the welded side of the four corners of the doors and windows is away from the side of the vertical gun 3, and the welded side is flipped toward the vertical gun 3. The vertical gun 3 and the tilting gun 8 both weld the four corners of the two sides of the doors and windows, thereby repeating the welding work steps.

[0055] The working steps of the first connection mechanism are as follows:

[0056] As described above, when the second stepper motor 10 rotates one hundred and eighty degrees clockwise, the second stepper motor 10 drives the gear 14 to rotate one hundred and eighty degrees clockwise synchronously, so the gear 14 drives the gear rod 16 meshing therewith to slide vertically upward on the card plate 15, but the gear rod 16 does not contact the touch button 18 when it is vertically upward, thereby realizing the welding of the front and back sides of the doors and windows in the working steps of the above-mentioned flip assembly. At this time, when the second stepper motor 10 rotates one hundred and eighty degrees clockwise again, it is equivalent to the second stepper motor 10 rotating three hundred and sixty degrees clockwise. At this time, the gear rod 16 is vertically upward and contacts the touch button 18, and the touch button 18 controls the first stepper motor 5 to start through the controller.

[0057] The working steps of the rotating mechanism are as follows:

[0058] As described above, when the first stepper motor 5 is started, the output shaft end of the first stepper motor 5 drives the fixed plate 6 to rotate one hundred and eighty degrees clockwise, so that the oxyacetylene spray gun 7 and the tilting gun 8 are interchanged, so that the oxyacetylene spray gun 7 is closer to the position of the doors and windows, and the front and back sides of the door frame have been welded at this time, so the oxyacetylene spray gun 7 starts to work after starting, and repeats the above-mentioned first welding work steps, so that the oxyacetylene spray gun 7 can realize the burning and cleaning of the door frame after welding, so that the oxyacetylene spray gun 7 can use high-temperature flames and other methods to burn impurities or unnecessary materials, thereby realizing the cleaning of slag around the welds of doors and windows after welding.

[0059] The setting of the rotating mechanism avoids the need to transfer the workpiece to a special cleaning area for burn-off cleaning after welding in the traditional way. The rotating mechanism can quickly switch welding and burn-off cleaning at the same position through rotation, which greatly reduces the time of transportation and positioning during process conversion, and further improves the welding efficiency of doors and windows. At the same time, the rotating mechanism can allow the welding device and the burn-off cleaning device to work alternately. When one device is working, the other device can perform preparatory work. For example, when the inclined gun 8 is welding with the vertical gun 3, the oxyacetylene spray gun 7 can be preheated in advance, etc., so that the whole production process is more coherent and the idle time of equipment is reduced.

[0060] The setting of the flipping mechanism can realize automatic welding and burning cleaning of both sides of doors and windows. Automatic flipping does not require manual handling and flipping of doors and windows, which firstly saves a lot of time and labor costs. Secondly, the welding and burning cleaning process can be accompanied by high temperature, thus avoiding burns caused by manual flipping. At the same time, it can also reduce the time required to wait for the temperature to drop before flipping, thereby improving the efficiency of door and window welding.

[0061] The working steps of the second connection mechanism are as follows:

[0062] As described above, when the second stepper motor 10 rotates 180 degrees counterclockwise, the second stepper motor 10 drives the gear 14 to rotate 180 degrees counterclockwise synchronously, so the gear 14 drives the gear rod 16 meshing therewith to slide vertically downward on the card plate 15. When the gear rod 16 moves vertically downward and away from the touch button 18, the touch button 18 no longer controls the start of the first stepper motor 5 and turns it off. Therefore, the oxyacetylene spray gun 7 always remains at a position closer to the door and window. At the same time, when the second stepper motor 10 rotates 180 degrees counterclockwise and drives the rectangular frame 11 to move synchronously, As described above, the doors and windows are turned over again, thereby achieving the burning and cleaning of both sides of the doors and windows by the oxyacetylene spray gun 7. When the two sides of the doors and windows are completely burned and cleaned by the oxyacetylene spray gun 7, the second stepper motor 10 continues to rotate 180 degrees counterclockwise, that is, the second stepper motor 10 rotates 360 degrees counterclockwise in total, thereby returning the doors and windows to the initial position. The second stepper motor 10 rotates 180 degrees counterclockwise again. At this time, the gear 14 drives the gear rod 16 meshing therewith to slide vertically downward on the card plate 15, and the gear rod 16 vertically approaches and contacts the touch button 2 20 downward.

[0063] The working steps of the tilt mechanism are as follows:

[0064] As described above, when the gear rod 16 contacts the touch button 20, the touch button 20 controls the electric telescopic rod 21 to start through the controller, and the telescopic shaft end of the electric telescopic rod 21 pushes the vertical plate 26 in the horizontal direction to move away from the electric telescopic rod 21, so that the vertical plate 26 drives the connecting column 24 to slide horizontally on the groove 23 in the direction away from the electric telescopic rod 21, so the vertical plate 26 drives the horizontal plate 27 to move synchronously, and the horizontal plate 27 drives the sliding block 25 to slide horizontally on the groove 1 22 at the beginning. When the sliding block 25 slides to the corner of the groove 1 22, the sliding block 25 continues to slide along the inner cavity of the groove 1 22. Because the sliding block 25 slides to the corner of the groove 1 22 and continues to slide, the sliding block 25 moves downward in the vertical direction, so that the sliding block 25 drives the horizontal plate 27 to slide vertically downward on the groove 3 28, and at the same time, the sliding block 25 drives the horizontal plate 27 to rotate vertically downward with the connection between the horizontal plate 27 and the vertical plate 26 as the axis. When the electric telescopic rod 12 is retracted to the maximum limit, the four clamping blocks 13 will no longer clamp the doors and windows, so that the four sides of the doors and windows are no longer clamped. The doors and windows fall vertically downward under the influence of their own gravity. At this time, the doors and windows preferentially contact the inclined cross plate 27, and then slide along the inclined cross plate 27 to the conveyor belt 29. The conveyor belt 29 continues to transmit after being energized. Therefore, the doors and windows that have been welded and burned and cleaned are transported out by the conveyor belt 29, so that the staff can properly preserve the doors and windows.

[0065] By setting up the tilting mechanism, with the help of the tilting angle of the tilting plate, the doors and windows can automatically slide onto the conveyor belt 29 under the action of gravity, without the need for manual handling or the use of other auxiliary tools for transfer. The connection between the tilting plate and the conveyor belt 29 is relatively fixed and smooth, and the doors and windows can be quickly transitioned from the welding and cleaning position to the conveyor belt 29, making the entire production process more coherent and reducing production stagnation caused by an unsmooth transfer process. Compared with collisions, scratches, etc. caused by manual handling, the method of slowly sliding from the tilting plate to the conveyor belt 29 is more stable, which can effectively reduce the probability of collision between doors and windows and other objects and reduce the risk of damage and deformation of the surface of doors and windows, thereby ensuring the quality and appearance of doors and windows.

[0066] By coordinating the connection mechanism with the flipping mechanism, the rotating mechanism and the tilting mechanism, different mechanisms can be driven to work during the flipping of the doors and windows, thereby achieving automatic welding of the doors and windows.

[0067] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic door and window welding device, comprising a support frame (1), characterized in that: The top of the support frame (1) is fixedly connected to a three-axis moving module (2), the top moving end of the three-axis moving module (2) is fixedly connected to a vertical gun (3), and a rotating mechanism is arranged on the vertical gun (3); the rotating mechanism comprises a support plate (4) fixedly connected to the side wall of the vertical gun (3), the lower surface of the support plate (4) is fixedly connected to a first stepper motor (5), the output shaft end of the first stepper motor (5) is fixedly connected to a fixing plate (6), the end of the fixing plate (6) away from the first stepper motor (5) is fixedly connected to an oxyacetylene spray gun (7), and the end of the fixing plate (6) away from the first stepper motor (5) is fixedly connected to a tilting gun (8).

2. The automatic door and window welding device according to claim 1, characterized in that: The support frame (1) is provided with a flip mechanism, the flip mechanism comprising a notch (9) formed on the upper surface of the support frame (1), a second stepper motor (10) being fixedly connected to the inner wall of the notch (9), an output shaft end of the second stepper motor (10) being fixedly connected to a rectangular frame (11), two groups of electric telescopic rods (12) being symmetrically fixedly connected to the inner wall of the rectangular frame (11), each group of the electric telescopic rods (12) being provided with no less than two, and a clamping block (13) being fixedly connected to a side of each electric telescopic rod (12) away from the rectangular frame (11).

3. The automatic door and window welding device according to claim 2, characterized in that: The support frame (1) is provided with a connecting mechanism, the connecting mechanism comprising a gear (14) fixedly connected to the outer side of the output end of the second stepper motor (10), a clamping plate (15) fixedly connected to the inner wall of the support frame (1), a gear rod (16) slidably connected to the inner side of the clamping plate (15), a connecting block 1 (17) fixedly connected to the upper surface of the support frame (1), a touch button 1 (18) installed on the side of the connecting block 1 (17) close to the gear rod (16), and a connecting block 2 (19) fixedly connected to the lower surface of the support frame (1), a touch button 2 (20) installed on the side of the connecting block 2 (19) close to the bottom of the gear rod (16).

4. The automatic door and window welding device according to claim 2, characterized in that: The support frame (1) is provided with a tilting assembly inside, and the tilting assembly comprises an electric telescopic rod 2 (21) fixedly connected to the inner wall of the support frame (1), the inner wall of the support frame (1) is symmetrically provided with a groove 1 (22), the inner wall of the support frame (1) is symmetrically provided with a groove 2 (23), each groove 2 (23) is slidably connected with a connecting column (24), each groove 1 (22) is slidably connected with a sliding block (25), a vertical plate (26) is fixedly connected between the two connecting columns (24), a horizontal plate (27) is fixedly connected between the two sliding blocks (25), and a side wall of the vertical plate (26) is symmetrically provided with a groove 3 (28).

5. The automatic door and window welding device according to claim 4, characterized in that: Conveyor belts (29) are sleeved on both sides of the support frame (1), and the conveyor belts (29) are located directly below the notch (9).

6. The automatic door and window welding device according to claim 2, characterized in that: The side of the rectangular frame (11) away from the second stepping motor (10) is rotatably connected to the support frame (1), and the four clamping blocks (13) are arranged symmetrically with each other.

7. The automatic door and window welding device according to claim 3, characterized in that: The gear (14) and the gear rod (16) are meshed with each other, the touch button one (18) controls the opening and closing of the first stepper motor (5) through the controller, and the touch button two (20) controls the opening and closing of the electric telescopic rod two (21) through the controller.

8. The automatic door and window welding device according to claim 3, characterized in that: The touch button 1 (18) is located on the movement path of the gear rod (16), and the touch button 2 (20) is located on the movement path of the gear rod (16).

9. The automatic door and window welding device according to claim 4, characterized in that: The transverse plate (27) is movably connected to the two grooves (28), and the notch (9) is located on the movement path of the transverse plate (27).

10. The automatic door and window welding device according to claim 5, characterized in that: The telescopic shaft end of the second electric telescopic rod (21) is fixedly connected to the vertical plate (26), and the conveyor belt (29) is located on the movement path of the horizontal plate (27).

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