Intelligent welding device for aluminum alloy

Abstract

The invention discloses an intelligent aluminum alloy welding device, and relates to the technical field of welding equipment, the intelligent aluminum alloy welding device comprises a base, a transverse moving mechanism is arranged on the base, three sets of clamping mechanisms are arranged on the transverse moving mechanism, and a welding mechanism is further arranged on the base; the welding mechanism comprises a fixing frame and a welding assembly, the welding assembly is arranged on the transverse moving mechanism, a reciprocating assembly and a linkage assembly are arranged on the fixing frame, an adjusting assembly is arranged on the reciprocating assembly, a grinding assembly is arranged on the adjusting assembly, the linkage assembly is connected with the reciprocating assembly, and the linkage assembly can drive the clamping mechanism to rotate intermittently; by arranging the clamping mechanism, automatic coaxial positioning of the tank body, the tank top and the tank bottom is ensured, and manual alignment errors are eliminated; by arranging the grinding assembly, the welding seam can be ground, the grinding range can be adjusted, and different welding seams can be flexibly adapted; and through cooperation of the reciprocating assembly and the linkage assembly, the tank body can rotate intermittently during grinding, and grinding can be more uniform in cooperation with reciprocating motion of the grinding piece.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, and in particular to an intelligent welding device for aluminum alloys. Background Art

[0002] In the manufacturing process of aluminum alloy storage tanks, traditional assembly and welding processes have the following pain points: the tank body, tank bottom and tank top need to be manually aligned, and coaxiality is difficult to ensure, which can easily lead to welding misalignment or deformation; manual spot welding positioning relies on the operator's experience, the tank body is difficult to rotate, and the weld quality is poor; weld grinding requires manual repeated adjustment of position and force, and the dust hazard is great; existing equipment mostly adopts step-by-step operation, and clamping, welding, and grinding require switching tooling, which is time-consuming and labor-intensive, affecting mass production efficiency; therefore, it is necessary to design an aluminum alloy intelligent welding device. Summary of the Invention

[0003] In response to the above technical problems, the technical solution adopted by the present invention is: an intelligent aluminum alloy welding device, comprising a base, a transverse movement mechanism is provided on the base, three sets of clamping mechanisms are provided on the transverse movement mechanism, and a welding mechanism is also provided on the base; The welding mechanism includes a fixed frame and a welding assembly, the welding assembly is arranged on the transverse movement mechanism, the fixed frame is provided with a reciprocating assembly and a linkage assembly, the reciprocating assembly is provided with an adjustment assembly, the adjustment assembly is provided with a grinding assembly, the linkage assembly is connected to the reciprocating assembly, and the linkage assembly can drive the clamping mechanism to rotate intermittently; The adjustment component includes an adjustment double-ended screw, two ends of which are provided with two sections of threads in opposite directions, and both sections of the threads of the adjustment double-ended screw are provided with adjustment sliders, and the adjustment sliders are provided with a grinding component.

[0004] Furthermore, the reciprocating assembly includes a driving rod, which is rotatably mounted on a fixed frame, and a driving slider is slidably mounted on the driving rod, and the driving slider is threadedly mounted on a reciprocating adjustment screw, and the reciprocating adjustment screw is rotatably mounted on the driving rod, and a reciprocating slide is provided on the driving slider, and the reciprocating slide is slidably mounted on a reciprocating plate, and the reciprocating plate is a cross-shaped plate, and the reciprocating plate is slidably mounted on a reciprocating slide rail, and an adjustment slider is slidably mounted on the reciprocating plate.

[0005] Furthermore, the linkage assembly includes a transmission unit, the transmission unit is connected to the driving rod, the transmission unit is also connected to the intermittent unit, and the intermittent unit is connected to the clamping mechanism.

[0006] Furthermore, the transmission unit includes a bevel gear 1, which is coaxially fixedly installed with the driving rod, the bevel gear 1 is meshed with the bevel gear 2, the bevel gear 2 is coaxially fixedly installed with the pulley, the pulley 1 is connected to the pulley 2 through a synchronous belt 1, the pulley 2 is connected to the pulley 3 through a synchronous belt 2, and the pulley 3 is connected to the intermittent unit.

[0007] Furthermore, the intermittent unit includes an active dial, the active dial and the pulley are coaxially fixedly installed, a toggle rod is fixedly installed on the active dial, the toggle rod cooperates with the groove wheel, the groove wheel and the gear are coaxially fixedly installed, the gear and the rotating ring gear are meshed and installed, and the rotating ring gear is fixedly installed on the clamping mechanism.

[0008] Furthermore, the transverse mechanism includes a transverse slider 1 and a transverse slider 2, three transverse sliders are sequentially provided, each transverse slider 1 is provided with a clamping mechanism, the middle transverse slider 1 is fixedly mounted on the transverse slide rod, both ends of the transverse slide rod are fixedly mounted on a fixed plate, a transverse double-ended lead screw 1 is rotatably mounted on the fixed plate, the transverse sliders 1 on both sides are slidably mounted on the transverse slide rod, and the transverse sliders 1 on both sides are threadedly mounted on the transverse double-ended lead screw 1; There are two transverse sliding blocks 2, and each transverse sliding block 2 is provided with a welding assembly. The transverse sliding blocks 2 are slidably installed on the transverse sliding rod, and the transverse sliding blocks 2 are threadedly installed on the transverse double-headed screw 2.

[0009] Furthermore, the clamping mechanism includes a clamping ring, a plurality of sliding grooves are evenly arranged on the circumference of the clamping ring, a clamping rack is slidably installed in each sliding groove, a clamping seat is provided at the end of the clamping rack, a clamping roller is rotatably installed on the clamping seat, the clamping rack and the clamping gear are meshed and installed, and the clamping gear and the clamping gear ring are meshed and installed.

[0010] Furthermore, the polishing assembly includes a polishing electric cylinder, and a polishing sheet is provided on the telescopic rod of the polishing electric cylinder.

[0011] Furthermore, the welding assembly includes a welding electric cylinder, a welding gun fixing plate is fixedly mounted on the telescopic rod of the welding electric cylinder, and a welding gun is fixedly mounted on the welding gun fixing plate.

[0012] Compared with the prior art, the present invention has the following advantages: (1) by setting a clamping mechanism, the tank body, tank top and tank bottom are automatically coaxially positioned, eliminating manual alignment errors; (2) by cooperating with the transverse movement mechanism and the welding mechanism, the moving position of the welding gun can be accurately controlled to ensure the accuracy of the welding position; (3) by setting a grinding assembly, the weld can be ground, and the grinding range can be adjusted to flexibly adapt to different welds; (4) by automatically controlling the contact force of the grinding sheet and combining the uniform motion of the reciprocating plate, the grinding surface is ensured to be flat and consistent; (5) by cooperating with the reciprocating assembly and the linkage assembly, the tank body can be rotated intermittently during grinding, and the reciprocating motion of the grinding sheet can make the grinding more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the transverse movement mechanism and the clamping mechanism of the present invention.

[0015] Figure 3 It is a structural schematic diagram of the clamping mechanism and welding mechanism of the present invention.

[0016] Figure 4 It is a structural schematic diagram of the welding mechanism of the present invention.

[0017] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0018] Figure 6 It is a schematic diagram of the local structure of the welding mechanism of the present invention.

[0019] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0020] Figure 1: 1-base; 201-transverse motor 1; 202-fixed plate; 203-transverse double-ended screw 1; 204-transverse slide; 205-transverse slide 1; 206-transverse double-ended screw 2; 207-transverse motor 2; 208-transverse slide 2; 301-limiting ring; 302-clamping ring; 303-motor fixing plate; 304-clamping motor; 305-clamping gear; 306-clamping gear ring; 307-clamping rack; 308-clamping seat; 309-clamping roller; 401-fixed frame; 402-motor bracket; 403-reciprocating motor; 404-bevel gear 1; 405-bevel gear 2; 406-driving rod; 407-driving slide Block; 408-reciprocating adjustment motor; 409-reciprocating adjustment screw; 410-reciprocating slide; 411-reciprocating plate; 412-reciprocating slide; 413-adjusting motor; 414-adjusting double-ended screw; 415-adjusting slider; 416-fixing rod; 417-welding cylinder; 418-welding gun fixing plate; 419-welding gun; 420-grinding cylinder; 421-grinding disc; 422-linkage bracket; 423-pulley 1; 424-synchronous belt 1; 425-pulley 2; 426-synchronous belt 2; 427-pulley 3; 428-active dial; 429-toggle lever; 430-gear; 431-groove pulley; 432-rotating gear ring; 433-side plate. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0022] Example: Figure 1-Figure 7 The aluminum alloy intelligent welding device shown includes a base 1, a transverse movement mechanism, a clamping mechanism and a welding mechanism. The base 1 is provided with a transverse movement mechanism, the transverse movement mechanism is provided with three groups of clamping mechanisms, and the base 1 is also provided with a welding mechanism.

[0023] The transverse mechanism includes a transverse motor 201, a fixed plate 202, a transverse double-ended screw 203, a transverse slide 204, a transverse slider 205, a transverse double-ended screw 206, a transverse motor 207 and a transverse slider 208. Three transverse sliders 205 are provided in sequence, and each transverse slider 205 is provided with a clamping mechanism. The transverse sliders 205 on both sides are fixedly installed with clamping rings 302, and a slide groove is provided on the middle transverse slider 205. A limiting ring 301 is rotatably installed on the middle transverse slider 205. The middle transverse slider 205 is fixedly installed on the transverse slide 204. Both ends of the transverse slide 204 are fixedly installed on the fixed plate 202. The fixed plate 202 is fixedly installed on the base 1. The fixed plate 202 is rotatably installed with a transverse double-ended screw 203 , two ends of the transverse double-ended lead screw 203 are provided with two sections of threads in opposite directions, and the two sections of the threads of the transverse double-ended lead screw 203 are respectively threadedly installed with the transverse sliders 205 on both sides, and the transverse sliders 205 on both sides are slidably installed on the transverse slide 204, the transverse double-ended lead screw 203 and the output shaft of the transverse motor 201 are fixedly installed, and the transverse motor 201 is fixedly installed on the fixed plate 202, and two ends of the transverse double-ended lead screw 206 are provided with two sections of threads in opposite directions, and the two ends of the transverse double-ended lead screw 206 are respectively threadedly installed with the transverse slider 208, and the transverse slider 208 is also slidably installed on the transverse slide 204, one end of the transverse double-ended lead screw 206 is fixedly installed with the output shaft of the transverse motor 207, and the transverse motor 207 is fixedly installed on the fixed plate 202.

[0024] The clamping mechanism includes a limit ring 301, a clamping ring 302, a motor fixing plate 303, a clamping motor 304, a clamping gear 305, a clamping gear ring 306, a clamping rack 307, a clamping seat 308 and a clamping roller 309. A limit ring 301 is provided on the clamping ring 302. Three slide grooves are evenly provided on the circumference of the clamping ring 302. A clamping rack 307 is slidably installed in each slide groove. A clamping seat 308 is fixedly installed at the end of the clamping rack 307. A clamping roller 309 is rotatably installed on the clamping seat 308. The holding roller 309, each clamping rack 307 is meshed with a clamping gear 305, one of the clamping gears 305 is fixedly installed on the output shaft of the clamping motor 304, the clamping motor 304 is fixedly installed on the motor fixing plate 303, the clamping gear 305 is meshed with the clamping gear ring 306, the clamping gear ring 306 is rotatably installed on the inner wall of the clamping ring 302, the clamping gear 305 is rotatably installed on the motor fixing plate 303, and the motor fixing plate 303 is fixedly installed on the clamping ring 302.

[0025] The welding mechanism includes a fixed frame 401, a reciprocating component, a linkage component, an adjustment component, a grinding component and a welding component. The fixed frame 401 is fixedly installed on the base 1. The fixed frame 401 is provided with a reciprocating component and a linkage component. The reciprocating component is provided with an adjustment component. The adjustment component is provided with a grinding component. The linkage component and the reciprocating component are connected, and the linkage component can drive the clamping mechanism to rotate intermittently.

[0026] The reciprocating assembly includes a motor bracket 402, a reciprocating motor 403, a drive rod 406, a drive slider 407, a reciprocating adjustment motor 408, a reciprocating adjustment screw 409, a reciprocating slide 410, a reciprocating plate 411 and a reciprocating slide rail 412. The motor bracket 402 is fixedly mounted on the fixed frame 401. The reciprocating motor 403 is fixedly mounted on the motor bracket 402. The output shaft of the reciprocating motor 403 and the drive rod 406 are fixedly mounted. The drive rod 406 is rotatably mounted on the fixed frame 401. The drive slider 407 is slidably mounted on the drive rod 406. The drive slider 407 is threadedly mounted on the reciprocating adjustment screw 409. The reciprocating adjustment screw 409 is rotatably mounted on the drive rod 406. The reciprocating adjustment screw 409 and the output of the reciprocating adjustment motor 408 are fixedly mounted on the fixed frame 401. The shaft is fixedly installed, the reciprocating adjustment motor 408 is fixedly installed on the driving rod 406, and a reciprocating slide 410 is fixedly installed on the driving slider 407. The reciprocating plate 411 is a cross-shaped plate. A vertical slide groove is provided in the middle part of the reciprocating plate 411, and two horizontal slide grooves are provided at both ends of the reciprocating plate 411. The two ends of the reciprocating plate 411 are slidably installed on the reciprocating slide rail 412, and the reciprocating slide rail 412 is fixedly installed on the fixed frame 401. The distance between the rotation center of the reciprocating slide rail 412 and the driving rod 406 is greater than the distance between the rotation center of the reciprocating adjustment motor 408 and the driving rod 406. The reciprocating slide 410 is slidably installed in the vertical slide groove of the reciprocating plate 411, and the adjustment slider 415 is slidably installed in the horizontal slide grooves at both ends of the reciprocating plate 411.

[0027] The adjusting assembly includes an adjusting motor 413, an adjusting double-ended screw 414, an adjusting slider 415, and a side plate 433. The two ends of the adjusting double-ended screw 414 are rotatably mounted on the side plate 433, and the side plate 433 is fixedly mounted on the reciprocating plate 411. The adjusting motor 413 is fixedly mounted on the side plate 433. The output shaft of the adjusting motor 413 and the adjusting double-ended screw 414 are fixedly mounted. Two sections of threads in opposite directions are provided at both ends of the adjusting double-ended screw 414. The adjusting slider 415 is threadedly mounted on the two sections of threads of the adjusting double-ended screw 414, and a grinding assembly is provided on the adjusting slider 415.

[0028] The polishing assembly includes a polishing electric cylinder 420 and a polishing sheet 421 . The polishing electric cylinder 420 is fixedly mounted on the adjusting slider 415 , and the polishing sheet 421 is provided on the telescopic rod of the polishing electric cylinder 420 .

[0029] The welding assembly includes a fixed rod 416, a welding electric cylinder 417, a welding gun fixing plate 418 and a welding gun 419. The fixed rod 416 is fixedly mounted on the transverse slider 208, the welding electric cylinder 417 is fixedly mounted on the fixed rod 416, the welding gun fixing plate 418 is fixedly mounted on the telescopic rod of the welding electric cylinder 417, and the welding gun 419 is fixedly mounted on the welding gun fixing plate 418.

[0030] The linkage assembly includes a transmission unit and an intermittent unit. The transmission unit is connected to the driving rod 406 . The transmission unit is also connected to the intermittent unit. The intermittent unit is connected to the clamping mechanism.

[0031] The transmission unit includes a bevel gear 1 404, a bevel gear 2 405, a linkage bracket 422, a pulley 1 423, a synchronous belt 1 424, a pulley 2 425, a synchronous belt 2 426 and a pulley 3 427. The bevel gear 1 404 and the driving rod 406 are coaxially fixedly installed, the bevel gear 1 404 and the bevel gear 2 405 are meshed and installed, the bevel gear 2 405 and the pulley 1 423 are coaxially fixedly installed, and the bevel gear 2 405 and the pulley 1 423 are rotatably installed on the linkage bracket 422, the linkage bracket 422 is fixedly installed on the fixed frame 401, the pulley 1 423 is connected to the pulley 2 425 through the synchronous belt 1 424, the pulley 2 425 is rotatably installed on the linkage bracket 422, the pulley 2 425 is connected to the pulley 3 427 through the synchronous belt 2 426, the pulley 3 427 is rotatably installed on the linkage bracket 422, and the pulley 3 427 is connected to the intermittent unit.

[0032] The intermittent unit includes an active dial 428, a toggle rod 429, a gear 430, a groove wheel 431 and a rotating ring gear 432. The active dial 428 and the pulley three 427 are coaxially fixedly installed. The active dial 428 is fixedly installed with a toggle rod 429, the toggle rod 429 is provided with a toggle rod, and the groove wheel 431 is provided with an open groove. The toggle rod on the toggle rod 429 cooperates with the open groove on the groove wheel 431, the groove wheel 431 and the gear 430 are coaxially fixedly installed, the gear 430 and the rotating ring gear 432 are meshed and installed, and the rotating ring gear 432 is fixedly installed on the clamping ring 302 on the clamping mechanism in the middle.

[0033] The working principle of the present invention is as follows: the tank bottom, tank body and tank top of the aluminum alloy storage tank are respectively installed on three clamping mechanisms; specifically, the clamping motor 304 is started, the clamping motor 304 drives the clamping gear 305 to rotate, the clamping gear 305 drives the clamping ring gear 306 to rotate, the clamping ring gear 306 drives the other two clamping gears 305 to rotate, the clamping gear 305 drives the clamping rack 307 to slide on the clamping ring 302, the clamping roller 309 on the clamping seat 308 at the end of the clamping rack 307 clamps the tank body, and then the tank bottom and tank top are clamped by the clamping mechanism, so that the tank body, tank top and tank bottom are coaxial.

[0034] Start the transverse motor 201, which drives the transverse double-ended lead screw 203 to rotate, and the transverse double-ended lead screw 203 drives the two transverse sliders 205 to move toward each other, so that the tank bottom, tank body and tank top are spliced ​​together, and spot welding is performed to ensure that the positions of each component are correct. Then start the transverse motor 207, which drives the transverse double-ended lead screw 206 to rotate, and the transverse double-ended lead screw 206 drives the two transverse sliders 208 to move, and the transverse slider 208 drives the two welding components to move to the joint. Then start the welding electric cylinder 417, which drives the welding gun fixing plate 418 and the welding gun 419 to move toward the welding position, and the storage tank is welded by the welding gun 419. When welding, start the reciprocating motion. Motor 403, the reciprocating motor 403 drives bevel gear 1 404 to rotate, bevel gear 1 404 drives bevel gear 2 405 and pulley 1 423 to rotate, pulley 1 423 drives pulley 2 425 to rotate through synchronous belt 1 424, pulley 2 425 drives pulley 3 427 to rotate through synchronous belt 2 426, pulley 3 427 drives active dial 428 and toggle lever 429 to rotate, toggle lever 429 drives sheave 431 to rotate, sheave 431 drives gear 430 to rotate, gear 430 drives rotating ring gear 432 to rotate, rotating ring gear 432 drives the middle clamping ring 302 to rotate, the clamping roller 309 on the clamping ring 302 presses the tank body, so the clamping roller 309 can drive the tank body to rotate, and the tank body drives the tank bottom and tank top to rotate, thereby welding the storage tank.

[0035] When the weld needs to be polished, the adjusting motor 413 is started, and the adjusting motor 413 drives the adjusting double-ended screw 414 to rotate, and the adjusting double-ended screw 414 drives the adjusting slider 415 to slide on the reciprocating plate 411, and the adjusting slider 415 drives the polishing assembly to move, and moves the two polishing discs 421 to the middle position where polishing is required, and the polishing electric cylinder 420 is started, and the polishing electric cylinder 420 drives the polishing disc 421 to be close to the weld, and the reciprocating motor 403 is started, and the reciprocating motor 403 drives the driving rod 406 to rotate The driving rod 406 drives the driving slider 407 to move in a circular motion, and the driving slider 407 drives the reciprocating plate 411 to reciprocate through the reciprocating slide rod 410, and grinds the weld through the grinding sheet 421; when it is necessary to adjust the grinding range, the reciprocating adjustment motor 408 is started, and the reciprocating adjustment motor 408 drives the reciprocating adjustment screw 409 to rotate, and the reciprocating adjustment screw 409 drives the driving slider 407 to move on the driving rod 406, and the driving slider 407 is adjusted to different positions to adjust the grinding range.

Claims

1. An intelligent aluminum alloy welding device, characterized in that: It comprises a base (1), the base (1) is provided with a transverse movement mechanism, the transverse movement mechanism is provided with three groups of clamping mechanisms, and the base (1) is also provided with a welding mechanism; The welding mechanism comprises a fixed frame (401) and a welding assembly, the welding assembly being arranged on the transverse movement mechanism, the fixed frame (401) being provided with a reciprocating assembly and a linkage assembly, the reciprocating assembly being provided with an adjustment assembly, the adjustment assembly being provided with a grinding assembly, the linkage assembly being connected to the reciprocating assembly, and the linkage assembly being capable of driving the clamping mechanism to intermittently rotate; The adjustment assembly comprises an adjustment double-ended lead screw (414), two ends of the adjustment double-ended lead screw (414) are provided with two sections of threads in opposite directions, both sections of the threads of the adjustment double-ended lead screw (414) are provided with adjustment sliders (415), and the adjustment sliders (415) are provided with a grinding assembly.

2. The intelligent aluminum alloy welding device according to claim 1, characterized in that: The reciprocating assembly includes a driving rod (406), the driving rod (406) is rotatably mounted on a fixed frame (401), a driving slider (407) is slidably mounted on the driving rod (406), the driving slider (407) is threadedly mounted on a reciprocating adjustment screw (409), the reciprocating adjustment screw (409) is rotatably mounted on the driving rod (406), a reciprocating slider (410) is provided on the driving slider (407), the reciprocating slider (410) is slidably mounted on a reciprocating plate (411), the reciprocating plate (411) is a cross-shaped plate, the reciprocating plate (411) is slidably mounted on a reciprocating slide rail (412), and an adjustment slider (415) is slidably mounted on the reciprocating plate (411).

3. The intelligent aluminum alloy welding device according to claim 2, characterized in that: The linkage assembly comprises a transmission unit, the transmission unit is connected to a driving rod (406), the transmission unit is further connected to an intermittent unit, and the intermittent unit is connected to a clamping mechanism.

4. The intelligent aluminum alloy welding device according to claim 3, characterized in that: The transmission unit includes a bevel gear 1 (404), the bevel gear 1 (404) and the driving rod (406) are fixedly mounted coaxially, the bevel gear 1 (404) and the bevel gear 2 (405) are meshedly mounted, the bevel gear 2 (405) and the pulley 1 (423) are fixedly mounted coaxially, the pulley 1 (423) is connected to the pulley 2 (425) via a synchronous belt 1 (424), the pulley 2 (425) is connected to the pulley 3 (427) via a synchronous belt 2 (426), and the pulley 3 (427) is connected to the intermittent unit.

5. The intelligent aluminum alloy welding device according to claim 4, characterized in that: The intermittent unit includes an active dial (428), the active dial (428) and the pulley (427) are coaxially fixedly installed, a toggle rod (429) is fixedly installed on the active dial (428), the toggle rod (429) and the groove wheel (431) cooperate with each other, the groove wheel (431) and the gear (430) are coaxially fixedly installed, the gear (430) and the rotating ring gear (432) are meshed and installed, and the rotating ring gear (432) is installed on the clamping mechanism.

6. The intelligent aluminum alloy welding device according to claim 1, characterized in that: The transverse movement mechanism includes a transverse movement slider (205) and a transverse movement slider (208), three transverse movement sliders (205) are sequentially provided, and each transverse movement slider (205) is provided with a clamping mechanism, the middle transverse movement slider (205) is fixedly mounted on the transverse movement slide (204), both ends of the transverse movement slide (204) are fixedly mounted on the fixed plate (202), a transverse movement double-headed screw (203) is rotatably mounted on the fixed plate (202), the transverse movement sliders (205) on both sides are slidably mounted on the transverse movement slide (204), and the transverse movement sliders (205) on both sides are threadedly mounted on the transverse movement double-headed screw (203); There are two transverse sliders (208), each of which is provided with a welding assembly. The transverse sliders (208) are slidably mounted on the transverse slide rod (204), and the transverse sliders (208) are threadedly mounted on the transverse double-headed screw (206).

7. The intelligent aluminum alloy welding device according to claim 6, characterized in that: The clamping mechanism comprises a clamping ring (302), a plurality of slide grooves are evenly arranged on the circumference of the clamping ring (302), a clamping rack (307) is slidably installed in each slide groove, a clamping seat (308) is provided at the end of the clamping rack (307), a clamping roller (309) is rotatably installed on the clamping seat (308), the clamping rack (307) and the clamping gear (305) are meshed and installed, and the clamping gear (305) and the clamping gear ring (306) are meshed and installed.

8. The intelligent aluminum alloy welding device according to claim 1, characterized in that: The polishing assembly comprises a polishing electric cylinder (420), and a polishing sheet (421) is provided on the telescopic rod of the polishing electric cylinder (420).

9. The intelligent aluminum alloy welding device according to claim 1, characterized in that: The welding assembly comprises a welding electric cylinder (417), a welding gun fixing plate (418) is fixedly mounted on the telescopic rod of the welding electric cylinder (417), and a welding gun (419) is fixedly mounted on the welding gun fixing plate (418).

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