Aluminum frame rotary welding equipment

Abstract

The invention discloses aluminum frame rotary welding equipment, and relates to the technical field of automobile aluminum frame welding processing, the aluminum frame rotary welding equipment comprises a welding base, a welding robot and a positioner are arranged on the welding base, a positioning bracket is arranged on the positioner, and the positioner can drive the positioning bracket to rotate by 90 degrees; the first driving motor drives the driving shaft and the driven rod to rotate, the positioning wheels and the positioning plate can clamp and position the six edges of the two C-shaped aluminum frames at the same time, then the second driving motor drives the positioning plate to move, the welding ends of the two C-shaped aluminum frames are tightly attached, and the welding efficiency is improved. The C-shaped aluminum frame is arranged on the positioning bracket, then the frame pressing block is driven by the pressing driver to press the C-shaped aluminum frame on the positioning bracket, each edge of the C-shaped aluminum frame is subjected to multi-face clamping positioning, the positioning precision is high, meanwhile, the welding ends are tightly attached, the conditions of air holes, slag inclusion and incomplete welding can be avoided, and therefore the aluminum frame welding quality is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive aluminum frame welding and processing, and specifically to an aluminum frame rotary welding device. Background Art

[0002] The automotive window aluminum frame is an important component in the automotive structure, mainly used to support and fix the window glass, and at the same time, it also has certain aesthetics and functionality. Currently, during the production of the window aluminum frame, two C-shaped aluminum materials are welded together.

[0003] Among them, the welding of the window aluminum frame generally has the following two positioning methods:

[0004] 1. Manually spot-weld two C-shaped aluminum materials, then position the four sides of the semi-finished aluminum frame, and then use welding equipment to complete the welding.

[0005] 2. Manually fix and splice and position the six sides of two C-shaped aluminum materials respectively, and then directly weld the splicing ends.

[0006] However, through the above two methods, the positioning accuracy is poor, it is difficult to align the welding ends of the C-shaped aluminum materials, and pores are easily generated at the welding points. The existence of pores will reduce the effective bearing area of the weld seam, reduce the strength and density of the weld seam, and when the window aluminum frame bears pressure or vibration, cracks are easily initiated and propagated from the pores, affecting the production quality of the aluminum frame.

[0007] Therefore, an aluminum frame rotary welding device is proposed to solve the above problems. Summary of the Invention

[0008] (1) Technical Problems to be Solved

[0009] In view of the deficiencies of the prior art, the present invention provides an aluminum frame rotary welding device, which performs multi-faceted clamping and positioning on each side of the C-shaped aluminum frame. At the same time, the welding ends are closely attached, which can avoid the situations of pores, slag inclusions, and incomplete welding, thereby improving the welding quality of the aluminum frame to solve the problems raised in the above background art.

[0010] (2) Technical Solutions

[0011] To achieve the above object, the present invention provides the following technical solution: An aluminum frame rotary welding device, including a welding base, a welding robot and a positioner are arranged on the welding base, a positioning bracket is arranged on the positioner, and the positioner can drive the positioning bracket to rotate by 90°; two first positioning components and four second positioning components are arranged on the positioning bracket, the first positioning component is used for horizontally and transversely clamping and positioning the middle part of the C-shaped aluminum frame, the second positioning component is used for horizontally and longitudinally clamping and positioning both sides of the C-shaped aluminum frame, pressing frame components are arranged on both the first positioning component and the second positioning component, the pressing frame component and the positioning bracket can clamp and position the C-shaped aluminum frame in the vertical direction, and a driving component is also arranged on the positioning bracket, and the driving component can drive the first positioning component and the second positioning component to clamp and position the middle part and both sides of the C-shaped aluminum frame simultaneously.

[0012] Preferably, the first positioning component includes symmetrically arranged first positioning frames, positioning wheels are evenly rotatably connected along the length direction inside the first positioning frames, the second positioning component includes symmetrically arranged second positioning frames, a positioning plate is arranged on one side of the second positioning frame facing the C-shaped aluminum frame, and a pushing mechanism is arranged inside the second positioning frame, which can clamp both sides of the C-shaped aluminum frame and make the welding end faces closely adhere to each other.

[0013] Preferably, the pushing mechanism includes a second driving motor, the second driving motor is fixedly installed on the second positioning frame, the output end of the second driving motor is fixedly connected with a spur gear, a spur rack is fixedly installed on one side of the positioning plate facing the spur gear, and the spur gear meshes with the spur rack, and the positioning plate is horizontally and transversely slidably connected to the second positioning frame.

[0014] Preferably, the driving component includes a driving shaft, the driving shaft is horizontally and transversely rotatably connected inside the positioning bracket, a first driving motor is also fixedly installed inside the positioning bracket, the first driving motor is used to drive the driving shaft to rotate, symmetrically arranged first bidirectional threaded pipes are fixedly installed on the driving shaft, first threaded sliders are symmetrically threadedly connected to the first bidirectional threaded pipes, and the first threaded sliders can slide horizontally and transversely along the positioning bracket, and at the same time the top of the first threaded slider is fixedly connected to the corresponding first positioning frame, bevel gears one are also fixedly installed on the left and right sides of the driving shaft, bevel gears two are meshed and installed on the front and back sides of each bevel gear one, a driven rod is fixedly installed at the center of each bevel gear two, and the four driven rods are all horizontally and longitudinally rotatably connected inside the positioning bracket, and a second bidirectional threaded pipe is fixedly installed on each driven rod, second threaded sliders are symmetrically threadedly connected to the second bidirectional threaded pipes, and the second threaded sliders can slide horizontally and longitudinally along the positioning bracket, and the top of the second threaded slider is fixedly connected to the corresponding second positioning frame.

[0015] Preferably, the pressing frame assembly includes a pressing driver and a pressing frame block. The pressing drivers are respectively and fixedly installed on the corresponding first positioning frame and the second positioning frame, and the pressing drivers are used to drive the pressing frame block to press the C-shaped aluminum frame vertically downward.

[0016] Preferably, processing grooves are symmetrically arranged on the positioning bracket, and the positions of the processing grooves correspond to the welding ends of the C-shaped aluminum frame.

[0017] Preferably, it further includes a protection component capable of sucking slag and removing odor. The protection component includes a connecting piece. The connecting piece is fixedly installed on one side of the positioning plate facing the welding end of the C-shaped aluminum frame and is fixedly connected with a connecting piece. One end of the connecting piece away from the positioning plate is fixedly connected with a semi-circular tube. A negative pressure suction nozzle is arranged on the semi-circular tube. A conveying pipe is fixedly communicated with the side of the negative pressure suction nozzle. An air pump and a collection box are arranged on the bottom surface of the positioning bracket. The output end of the air pump is fixedly communicated with the collection box. An interception net and an activated carbon layer are arranged on the side of the collection box away from the air pump in sequence from inside to outside.

[0018] Preferably, both the semi-circular tube and the negative pressure suction nozzle are semi-circular structures. The two semi-circular tubes corresponding to each first positioning component can be inserted into each other to form a circular structure and can be sleeved on the C-shaped aluminum frame.

[0019] (III) Beneficial effects

[0020] Compared with the prior art, the present invention provides an aluminum frame rotary welding device, which has the following beneficial effects:

[0021] 1. In the present invention, the driving motor 1 drives the driving shaft and the driven rod to rotate, so that the positioning wheels and the positioning plates can simultaneously clamp and position the six sides of the two C-shaped aluminum frames. Then, the driving motor 2 drives the positioning plate to move, so that the welding ends of the two C-shaped aluminum frames are closely attached to each other. Then, the pressing driver drives the pressing frame block to press the C-shaped aluminum frame on the positioning bracket, and multi-faceted clamping and positioning are carried out on each side of the C-shaped aluminum frame. The positioning accuracy is relatively high. At the same time, the welding ends are closely attached, which can avoid the situations of air holes, slag inclusion and incomplete welding, thereby improving the welding quality of the aluminum frame.

[0022] 2. In the present invention, the air pump sucks the welding slag and harmful gases into the collection box. After being intercepted and adsorbed by the interception net and the activated carbon layer, the large-particle welding slag is collected, and the harmful welding odor is eliminated, ensuring the health and environmental protection of the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional view of the main structure of the present invention;

[0024] Figure 2 It is a top view of the structure on the positioning bracket of the present invention;

[0025] Figure 3 It is the bottom view of the internal structure of the positioning bracket of the present invention;

[0026] Figure 4 It is the structural cooperation diagram of the first positioning component and the driving component of the present invention;

[0027] Figure 5 It is the structural cooperation diagram of the second positioning component and the driving component of the present invention;

[0028] Figure 6 It is the schematic diagram of the relevant structure of the second positioning component of the present invention;

[0029] Figure 7 It is the schematic diagram of the relevant structure of the protection component of the present invention;

[0030] Figure 8 It is the cross-sectional view of the internal structure of the collection box of the present invention.

[0031] Reference numerals:

[0032] 1. Welding base; 2. Welding robot; 3. Positioner; 4. Positioning bracket; 5. C-shaped aluminum frame; 11. Machining groove;

[0033] 6. First positioning component; 61. First positioning frame; 62. Positioning wheel;

[0034] 7. Second positioning component; 71. Second positioning frame; 72. Positioning plate; 73. Pushing mechanism; 731. Second driving motor; 732. Straight gear; 733. Straight rack;

[0035] 8. Pressing frame component; 81. Pressing driver; 82. Pressing frame block;

[0036] 9. Driving component; 91. Driving shaft; 92. First driving motor; 93. First double-threaded pipe; 94. First threaded slider; 95. First bevel gear; 96. Second bevel gear; 97. Driven rod; 98. Second double-threaded pipe; 99. Second threaded slider;

[0037] 10. Protection component; 101. Connecting piece; 102. Semi-circular pipe; 103. Negative pressure suction nozzle; 104. Delivery pipe; 105. Air pump; 106. Collection box; 107. Intercepting net; 108. Activated carbon layer. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work shall fall within the protection scope of the present invention.

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] Example 1. Please refer to Figures 1 to 6 as shown in

[0041] To solve the problems mentioned in the technical solution, an aluminum frame rotary welding device is provided in an embodiment of the present application, including a welding base 1, a welding robot 2 and a positioner 3 are arranged on the welding base 1, a positioning bracket 4 is arranged on the positioner 3, and the positioner 3 can drive the positioning bracket 4 to rotate by 90°; two first positioning components 6 and four second positioning components 7 are arranged on the positioning bracket 4. The first positioning component 6 is used for horizontally and transversely clamping and positioning the middle part of the C-shaped aluminum frame 5, and the second positioning component 7 is used for horizontally and longitudinally clamping and positioning both sides of the C-shaped aluminum frame 5. Pressing frame components 8 are arranged on both the first positioning component 6 and the second positioning component 7. The pressing frame component 8 and the positioning bracket 4 can clamp and position the C-shaped aluminum frame 5 in the vertical direction. A driving component 9 is also arranged on the positioning bracket 4, and the driving component 9 can drive the first positioning component 6 and the second positioning component 7 to simultaneously clamp and position the middle part and both sides of the C-shaped aluminum frame 5.

[0042] The welding robot 2 is composed of a robotic arm and a laser welding gun, which is an existing device and can automatically weld the C-shaped aluminum frame 5. The positioner 3 is an existing device and can make the positioning bracket 4 rotate circumferentially in a cycle of 90°.

[0043] When the first positioning frame 61 and the second positioning frame 71 simultaneously clamp and position the C-shaped aluminum frame 5, the wear on the C-shaped aluminum frame 5 can be reduced through the positioning wheel 62. Through the setting of the first positioning component 6 and the second positioning component 7, all three sides of each C-shaped aluminum frame 5 are fixed, and the stability and positioning accuracy are relatively high.

[0044] Preferably, the first positioning component 6 includes symmetrically arranged first positioning frames 61. Positioning wheels 62 are evenly rotatably connected along the length direction inside the first positioning frames 61. The second positioning component 7 includes symmetrically arranged second positioning frames 71. A positioning plate 72 is arranged on the side of the second positioning frame 71 facing the C-shaped aluminum frame 5, and a pushing mechanism 73 is arranged inside the second positioning frame 71, which can clamp both sides of the C-shaped aluminum frame 5 with the positioning plate 72 and make the welding end faces closely adhere to each other.

[0045] Preferably, the pushing mechanism 73 includes a second driving motor 731, the second driving motor 731 is fixedly installed on the second positioning frame 71, the output end of the second driving motor 731 is fixedly connected with a spur gear 732, a spur rack 733 is fixedly installed on the side of the positioning plate 72 facing the spur gear 732, and the spur gear 732 meshes with the spur rack 733. The positioning plate 72 is horizontally and transversely slidably connected to the second positioning frame 71.

[0046] Specifically, the second driving motors 731 are synchronously controlled through a control system. After the C-shaped aluminum frame 5 is fixed by the first positioning assembly 6 and the second positioning assembly 7, the second driving motors 731 drive the spur gears 732 to rotate and engage with the spur gears 732 to move, so that the opposing positioning plates 72 can align and closely adhere to each other at the welding ends while clamping the C-shaped aluminum frame 5, avoiding the situations of pores, slag inclusions, and insufficient welding in the weld seams. Preferably, the driving assembly 9 includes a driving shaft 91, the driving shaft 91 is horizontally and laterally rotatably connected in the positioning bracket 4, and a first driving motor 92 is fixedly installed in the positioning bracket 4. The first driving motor 92 is used to drive the driving shaft 91 to rotate. Bidirectional threaded pipes 93 are symmetrically and fixedly installed on the driving shaft 91. Threaded sliders 94 are symmetrically and threadedly connected to the bidirectional threaded pipes 93, and the threaded sliders 94 can slide horizontally and linearly along the positioning bracket 4. At the same time, the tops of the threaded sliders 94 are fixedly connected to the corresponding first positioning frames 61. Bevel gears 95 are also fixedly installed on the left and right sides of the driving shaft 91. Bevel gears 96 are meshed and installed on the front and rear sides of the bevel gears 95. Driven rods 97 are fixedly installed at the centers of the bevel gears 96, and the four driven rods 97 are all horizontally and longitudinally rotatably connected in the positioning bracket 4. Bidirectional threaded pipes 98 are fixedly installed on each of the driven rods 97. Threaded sliders 99 are symmetrically and threadedly connected to the bidirectional threaded pipes 98, and the threaded sliders 99 can slide horizontally and linearly along the positioning bracket 4. The tops of the threaded sliders 99 are fixedly connected to the corresponding second positioning frames 71.

[0047] Through the meshing transmission of the bevel gear 95 and the bevel gear 96, the driving shaft 91 and the driven rod 97 rotate synchronously. Furthermore, through the rotation of the symmetrically positioned bidirectional threaded pipe 93 and the symmetrically positioned bidirectional threaded pipe 98, the corresponding threaded slider 94 and the corresponding threaded slider 99 move towards or away from each other simultaneously.

[0048] Preferably, the pressing frame assembly 8 includes a pressing driver 81 and a pressing frame block 82. The pressing drivers 81 are respectively fixedly installed on the corresponding first positioning frames 61 and second positioning frames 71. The pressing drivers 81 are used to drive the pressing frame blocks 82 to press the C-shaped aluminum frame 5 vertically downward.

[0049] Through the arrangement of the pressing driver 81 and the pressing frame block 82, they can move synchronously with the first positioning frame 61 and the second positioning frame 71, facilitating the installation and removal of the C-shaped aluminum frame 5.

[0050] Preferably, processing grooves 11 are symmetrically arranged on the positioning bracket 4. The processing grooves 11 correspond to the welding ends of the C-shaped aluminum frame 5, exposing a larger space, facilitating the welding robot 2 to perform welding.

[0051] For a further second embodiment, please refer to Figures 7 to 8 as shown:

[0052] It further includes a protection component 10 capable of sucking slag and removing odor. The protection component 10 includes a connecting piece 101. The connecting piece 101 is fixedly installed on one side of the positioning plate 72 facing the welding end of the C-shaped aluminum frame 5, and a connecting piece 101 is fixedly connected. One end of the connecting piece 101 away from the positioning plate 72 is fixedly connected with a semi-circular tube 102. A negative pressure suction nozzle 103 is arranged on the semi-circular tube 102. A conveying pipe 104 is fixedly communicated with the side of the negative pressure suction nozzle 103. An air pump 105 and a collection box 106 are arranged on the bottom surface of the positioning bracket 4. The output end of the air pump 105 is fixedly communicated with the collection box 106. An interception net 107 and an activated carbon layer 108 are arranged on the side of the collection box 106 away from the air pump 105 in sequence from inside to outside.

[0053] Preferably, both the semi-circular tube 102 and the negative pressure suction nozzle 103 are semi-circular structures. The two semi-circular tubes 102 corresponding to each first positioning component 6 can be inserted into each other to form a circular structure and can be sleeved on the C-shaped aluminum frame 5.

[0054] Specifically, the semi-circular tubes 102 can be spliced together with the clamping of the first positioning frame 61. By using the air pump 105, negative pressure is generated in the semi-circular tubes 102, and the welding slag and harmful gases generated during welding are sucked into the collection box 106 for collection. They are intercepted and adsorbed by the interception net 107 and the activated carbon layer 108, reducing the welding slag falling on the surface of the C-shaped aluminum frame 5. At the same time, for some odoriferous organic volatiles and some acidic gases such as hydrogen chloride generated by laser welding, the activated carbon can effectively adsorb them, thereby reducing the harmful odor. It can also accelerate the cooling of the welding position of the C-shaped aluminum frame 5. Moreover, the semi-circular tubes 102 are sleeved on the surface of the C-shaped aluminum frame 5 and face the welding position. No matter which side of the C-shaped aluminum frame 5 the welding robot 2 welds, the above functions can be achieved.

[0055] The working principle of all the contents in the above embodiments is as follows:

[0056] During the welding process, two C-shaped aluminum frames 5 are placed on the positioning bracket 4. By driving the driving motor 92 to drive the driving shaft 91 and the driven rod 97 to rotate, the positioning wheels 62 and the positioning plate 72 can simultaneously clamp and position the six sides of the two C-shaped aluminum frames 5. Then, by driving the driving motor 731 to drive the positioning plate 72 to move, the welding ends of the two C-shaped aluminum frames 5 are closely attached to each other. Then, by driving the pressing frame block 82 through the pressing driver 81, the C-shaped aluminum frame 5 is pressed on the positioning bracket 4. Then, the welding robot 2 and the positioner 3 perform the operations of welding and flipping the C-shaped aluminum frame 5.

[0057] During the welding process of the welding robot 2, the welding slag and harmful gases are sucked into the collection box 106 through the air pump 105. After being intercepted and adsorbed by the interception net 107 and the activated carbon layer 108, the large-particle welding slag is collected, and the harmful welding odor is eliminated, ensuring the health and environmental protection of the working environment.

[0058] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0059] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aluminum frame rotary welding device, characterized in that: The welding base (1) comprises a welding robot (2) and a positioner (3) arranged on the welding base (1); a positioning bracket (4) is arranged on the positioner (3); and the positioner (3) can drive the positioning bracket (4) to rotate 90 degrees; The positioning bracket (4) is provided with two first positioning components (6) and four second positioning components (7); the first positioning component (6) is used for horizontally clamping and positioning the middle part of the C-shaped aluminum frame (5); the second positioning component (7) is used for horizontally clamping and positioning the two sides of the C-shaped aluminum frame (5); the first positioning component (6) and the second positioning component (7) are both provided with a pressing frame component (8); the pressing frame component (8) can be used with the positioning bracket (4) to clamp and position the C-shaped aluminum frame (5) in the vertical direction; the positioning bracket (4) is also provided with a driving component (9); the driving component (9) can drive the first positioning component (6) and the second positioning component (7) to clamp and position the middle part and the two sides of the C-shaped aluminum frame (5) at the same time.

2. The aluminum frame rotary welding equipment according to claim 1 is characterized in that: The first positioning assembly (6) comprises a symmetrically arranged first positioning frame (61), wherein a positioning wheel (62) is connected to the first positioning frame (61) so as to rotate evenly along the length direction; the second positioning assembly (7) comprises a symmetrically arranged second positioning frame (71), wherein a positioning plate (72) is arranged on one side of the second positioning frame (71) facing the C-shaped aluminum frame (5), and a pushing mechanism (73) is arranged in the second positioning frame (71), so that the positioning plate (72) can clamp the two sides of the C-shaped aluminum frame (5) and make the welding end faces close to each other.

3. The aluminum frame rotary welding equipment according to claim 2 is characterized in that: The pushing mechanism (73) comprises a second driving motor (731), the second driving motor (731) is fixedly mounted on the second positioning frame (71), the output end of the second driving motor (731) is fixedly connected with a spur gear (732), a spur rack (733) is fixedly mounted on the side of the positioning plate (72) facing the spur gear (732), and the spur gear (732) is meshed with the spur rack (733), and the positioning plate (72) can be horizontally slidably connected to the second positioning frame (71).

4. The aluminum frame rotary welding equipment according to claim 3 is characterized in that: The driving assembly (9) comprises a driving shaft (91), the driving shaft (91) is horizontally and laterally rotatably connected in a positioning bracket (4), a driving motor (92) is also fixedly installed in the positioning bracket (4), the driving motor (92) is used to drive the driving shaft (91) to rotate, a bidirectional threaded tube (93) is symmetrically fixedly installed on the driving shaft (91), a threaded slider (94) is symmetrically threadedly connected on the bidirectional threaded tube (93), and the threaded slider (94) can slide horizontally and laterally on the positioning bracket (4), and the top of the threaded slider (94) is fixedly connected to a first positioning bracket (61) corresponding to the first positioning bracket (61), and the driving shaft (91) is fixedly connected to the first positioning bracket (61) corresponding to the first positioning bracket (61). Bevel gears 1 (95) are fixedly installed on the left and right sides, and bevel gears 2 (96) are meshedly installed on the front and rear sides of the bevel gears 1 (95). A driven rod (97) is fixedly installed at the center of the bevel gears 2 (96), and the four driven rods (97) are horizontally and longitudinally rotatably connected in the positioning bracket (4), and each of the driven rods (97) is fixedly installed with a bidirectional threaded tube 2 (98), and a threaded slider 2 (99) is symmetrically threadedly connected on the bidirectional threaded tube 2 (98), and the threaded slider 2 (99) can slide horizontally and longitudinally on the positioning bracket (4), and the top of the threaded slider 2 (99) is fixedly connected to a second positioning frame (71) corresponding to each other.

5. The aluminum frame rotary welding equipment according to claim 1, characterized in that: The pressing frame assembly (8) comprises a pressing driver (81) and a pressing frame block (82), wherein the pressing driver (81) is fixedly mounted on the first positioning frame (61) and the second positioning frame (71) in one-to-one correspondence, and the pressing driver (81) is used to drive the pressing frame block (82) to vertically press the C-shaped aluminum frame (5) downward.

6. The aluminum frame rotary welding equipment according to claim 4, characterized in that: The positioning bracket (4) is symmetrically provided with processing grooves (11), and the processing grooves (11) correspond to the positions of the welding ends of the C-shaped aluminum frame (5).

7. The aluminum frame rotary welding equipment according to claim 6, characterized in that: The invention also comprises a protection component (10) capable of absorbing residue and removing odor, wherein the protection component (10) comprises a connecting piece (101), the connecting piece (101) is fixedly mounted on a side of the positioning plate (72) facing the welding end of the C-shaped aluminum frame (5), the connecting piece (101) is fixedly connected to the connecting piece (101), the end of the connecting piece (101) away from the positioning plate (72) is fixedly connected to a semi-circular tube (102), a negative pressure suction nozzle (103) is arranged on the semi-circular tube (102), the side of the negative pressure suction nozzle (103) is fixedly connected to a conveying pipe (104), the bottom surface of the positioning bracket (4) is provided with an air pump (105) and a collection box (106), the output end of the air pump (105) is fixedly connected to the collection box (106), and the side of the collection box (106) away from the air pump (105) is sequentially provided with an interception net (107) and an activated carbon layer (108) from the inside to the outside.

8. The aluminum frame rotary welding equipment according to claim 7, characterized in that: The semi-circular tube (102) and the negative pressure suction nozzle (103) are both semi-circular structures, and the two semi-circular tubes (102) corresponding to each of the first positioning components (6) can be plugged into each other to form a circular structure, and can be sleeved on the C-shaped aluminum frame (5).

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