Welding height polishing device for aluminum alloy doors and windows

Abstract

The utility model relates to the technical field of polishing, in particular to a welding height polishing device for aluminum alloy doors and windows, which comprises a bottom plate, an H-shaped frame and a top plate are sequentially and fixedly arranged on the upper side of the bottom plate, a feeding component is arranged on the lower side of the top plate and used for conveying materials, and a polishing component is arranged between the bottom plate and the top plate and used for polishing two sides of the materials simultaneously. A plurality of supporting assemblies are arranged on the upper side of the bottom plate. Through the arrangement of the bottom plate, the H-shaped frame, the top plate, the feeding assembly, the push-pull assembly, the polishing assembly, the rotating assembly and the centering auxiliary assembly, the automatic polishing machine has the functions of efficient polishing, automatic polishing, uniform polishing and automatic adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding, in particular to a welding height grinding device for aluminum alloy doors and windows. Background Art

[0002] Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, stiles and leaf materials. Aluminum alloy doors and windows include doors and windows with aluminum alloy as the base material for load-bearing rods (rods that bear and transfer their own weight and loads) and doors and windows composited with wood and plastic, referred to as aluminum-wood composite doors and windows and aluminum-plastic composite doors and windows.

[0003] Weld height generally refers to the height of the weld, the gap between metal plates, and the overall height of the metal liquid filled in the weld after the welding rod cools and shrinks during welding. Currently, many aluminum alloy doors and windows need to be welded during production. After welding is completed, grinding equipment is required to grind the weld so that the weld height meets the requirements.

[0004] When using the existing grinding equipment, the aluminum alloy door and window components need to be placed flat on the workbench for grinding. After the upper surface is polished, it is necessary to manually change the surface and then polish the other side. This grinding method is slow and will result in low grinding efficiency. For this reason, we propose a welding height grinding device for aluminum alloy doors and windows to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that when the existing grinding equipment is used, the aluminum alloy door and window parts need to be placed flat on the workbench for grinding processing. After the upper surface is ground, it is necessary to manually change the surface and then grind the other side. This grinding method is slow and will cause the disadvantage of low grinding efficiency. A welding height grinding device for aluminum alloy doors and windows is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A welding and grinding device for aluminum alloy doors and windows comprises a bottom plate, an H-shaped frame and a top plate are fixedly arranged on the upper side of the bottom plate in sequence, a material feeding assembly is arranged on the lower side of the top plate, the material feeding assembly is used to convey materials, a grinding assembly is arranged between the bottom plate and the top plate, the grinding assembly is used to grind both sides of the material at the same time, and a plurality of supporting assemblies are arranged on the upper side of the bottom plate.

[0008] Preferably, the feeding assembly includes two movable frames, guide holes are provided on two sides of the H-shaped frame away from each other, the movable frame slides on the inner side of the guide holes, a push-pull assembly is provided on one side of one of the movable frames, a centering auxiliary assembly is provided between the two movable frames, four through holes are provided on the upper side of the movable frame, a feeding shaft is rotatably provided on the inner side of the through hole, a feeding wheel is fixedly provided on the outer periphery of the feeding shaft, two stabilizing frames are fixedly provided on the lower side of the movable frame, two through holes are provided on the lower side of the stabilizing frame, the feeding shaft rotates on the inner side of the through holes, a motor is fixedly provided on the upper side of the movable frame, the motor is connected to an external power supply and a switch through wires, the shaft end of the motor is connected to the outer periphery of a feeding shaft through a bevel gear transmission, and the two feeding shafts are connected through a belt and a pulley transmission.

[0009] Preferably, the push-pull assembly includes a clamping release cylinder, a mounting hole is provided on one side of the H-shaped frame, the clamping release cylinder is fixed inside the mounting hole, and the shaft end of the clamping release cylinder is fixed on the movable frame.

[0010] Preferably, the centering auxiliary component includes an auxiliary gear, which rotates on the lower side of the top plate. An auxiliary frame is fixed on one side of the two movable frames, and the auxiliary frame slides on the lower side of the top plate. An auxiliary rack is fixed on the side where the auxiliary frames are close to each other, and the auxiliary gear is connected to the auxiliary rack through meshing.

[0011] Preferably, the grinding assembly comprises an upper double-threaded rod, a lower double-threaded rod, and two grinding shafts. A cross hole is provided on one side of the H-shaped frame, and two round holes are provided on two sides of the H-shaped frame that are far away from each other. The upper double-threaded rod and the lower double-threaded rod rotate inside the round holes, and the cross hole is connected to the two round holes. Two sliders are provided on the outer circumference of the upper double-threaded rod through a threaded transmission connection, and two cross blocks are provided on the outer circumference of the lower double-threaded rod through a threaded transmission connection. The upper end of the grinding shaft rotates on the lower side of the slider, and the lower end of the grinding shaft rotates on the upper side of the cross block. The cross block slides on the cross block. On the inner side of the letter hole, a grinding wheel is fixed on the outer circumference of the grinding shaft, a stepper motor is fixed on one side of the H-shaped frame, the stepper motor is connected to an external power supply and a drive controller through a wire, an adjusting shaft is fixed on the shaft end of the stepper motor, the adjusting shaft is rotatably connected to one side of the H-shaped frame, the adjusting shaft is connected to the upper double-threaded rod through a bevel gear transmission, the adjusting shaft is connected to the lower double-threaded rod through a bevel gear transmission, a receiving hole is provided on the upper side of the movable frame, the adjusting shaft is located in the receiving hole, and the grinding assembly also includes a rotating assembly, and the rotating assembly is used to drive the grinding shaft to rotate.

[0012] Preferably, the rotating assembly comprises a rotating shaft and a grinding motor, the grinding motor is fixed on one side of the H-shaped frame, the H-shaped frame has axial holes on two sides away from each other, the rotating shaft rotates on the inner side of the axial hole, the shaft end of the grinding motor is connected to the outer periphery of the rotating shaft through a bevel gear transmission, a connecting shaft is provided at the lower sides of the two sliding blocks, a connecting seat is rotatably provided on the outer periphery of the connecting shaft, the connecting seat is fixed to the lower side of the sliding block, the connecting shaft and the grinding shaft are connected through a bevel gear transmission, a worm gear is fixed on the outer periphery of the connecting shaft, a worm gear is provided below the worm gear through a meshing transmission connection, a connecting ring is fixed on the inner side of the worm gear, a follower seat is rotatably provided on the outer periphery of the connecting ring, the follower seat is fixed on one side of the sliding block, the connecting ring is slidably sleeved on the outer periphery of the rotating shaft, a driving groove is provided on the outer periphery of the rotating shaft, a driving block is fixed on the inner side of the connecting ring, and the driving block slides on the inner side of the driving groove.

[0013] Preferably, the support assembly comprises a support wheel, and the support wheel is rotatably connected to the upper side of the base plate.

[0014] The utility model provides a welding and grinding device for aluminum alloy doors and windows, which has the following beneficial effects:

[0015] (1) The utility model has the functions of efficient grinding and automatic grinding by arranging a bottom plate, an H-shaped frame, a top plate, a material feeding assembly, a push-pull assembly, a grinding assembly, and a rotating assembly. It can grind two surfaces of door and window components at the same time and can grind automatically, and has a high grinding efficiency.

[0016] (2) The utility model has the function of uniform grinding by providing a material feeding assembly, a push-pull assembly, and a centering auxiliary assembly, so that the door and window components can be located at the center position between the two grinding wheels, thereby ensuring that the welding heights on both sides of the door and window components are consistent and have a high degree of uniformity.

[0017] (3) The utility model has an automatic adjustment function by providing a grinding component and a rotating component. The utility model can automatically adjust the distance between the two grinding wheels according to the thickness of the door and window components or the welding height requirements, can meet various usage requirements, and has high versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front three-dimensional structure of a welding and grinding device for aluminum alloy doors and windows proposed by the utility model;

[0019] Figure 2 This is a front cutaway three-dimensional structural schematic diagram of a welding and grinding device for aluminum alloy doors and windows proposed by the utility model;

[0020] Figure 3 The utility model is proposed Figure 2 A schematic diagram of the partial enlarged structure of the middle A area;

[0021] Figure 4 This is a schematic diagram of the bottom partial three-dimensional structure of a welding and grinding device for aluminum alloy doors and windows proposed by the utility model;

[0022] Figure 5 This is a schematic diagram of the partial three-dimensional structure of the back side of a welding and grinding device for aluminum alloy doors and windows proposed by the utility model;

[0023] Figure 6 This is a side cutaway three-dimensional structural schematic diagram of a welding and grinding device for aluminum alloy doors and windows proposed by the utility model;

[0024] Figure 7 The utility model is proposed Figure 6 A schematic diagram of the partial enlarged structure of the middle B area;

[0025] Figure 8 The utility model is proposed Figure 6 A schematic diagram of the partial enlarged structure of the middle C area;

[0026] Fig. 9 This is a side cutaway axonometric structural diagram of a welding and grinding device for aluminum alloy doors and windows proposed by the utility model;

[0027] Fig.10 The utility model is proposed Fig. 9 A schematic diagram of the partial enlarged structure of the middle D area;

[0028] Fig.11 The utility model is a partial back three-dimensional structural schematic diagram of a welding and grinding device for aluminum alloy doors and windows.

[0029] In the figure: 1. bottom plate; 2. H-shaped frame; 3. top plate; 4. movable frame; 5. feeding shaft; 6. feeding wheel; 7. stabilizing frame; 8. electric motor; 9. clamping cylinder; 10. auxiliary gear; 11. auxiliary frame; 12. auxiliary rack; 13. upper double threaded rod; 14. lower double threaded rod; 15. grinding shaft; 16. cross hole; 17. slider; 18. cross block; 19. grinding wheel; 20. stepping motor; 21. adjusting shaft; 22. rotating shaft; 23. grinding motor; 24. connecting shaft; 25. connecting seat; 26. worm gear; 27. worm; 28. connecting ring; 29. ​​following seat; 30. driving block; 31. supporting wheel. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Reference Figures 1 to 11 A welding and grinding device for aluminum alloy doors and windows, comprising a bottom plate 1, an H-shaped frame 2 and a top plate 3 are fixedly arranged on the upper side of the bottom plate 1 in sequence, a plurality of support components are arranged on the upper side of the bottom plate 1, the support components include a support wheel 31, the support wheel 31 is rotatably connected to the upper side of the bottom plate 1, a material conveying component is arranged on the lower side of the top plate 3, the material conveying component is used to convey materials, the material conveying component includes two movable frames 4, guide holes are arranged on the two sides away from each other of the H-shaped frame 2, the movable frame 4 slides on the inner side of the guide hole, a push-pull component is arranged on one side of one movable frame 4, and the push-pull component includes The clamping cylinder 9 is enclosed, and a mounting hole is provided on one side of the H-shaped frame 2. The clamping cylinder 9 is fixed on the inner side of the mounting hole. The clamping cylinder 9 is externally connected to the electromagnetic valve through the air pipe. The shaft end of the clamping cylinder 9 is fixed on the movable frame 4. The upper side of the movable frame 4 is provided with four through holes. The inner side of the through hole is rotatably provided with a feeding shaft 5. A feeding wheel 6 is fixed on the outer periphery of the feeding shaft 5. The feeding wheel 6 is made of a slightly elastic material. Two stabilizing frames 7 are fixed on the lower side of the movable frame 4. Two through holes are provided on the lower side of the stabilizing frame 7. The feeding shaft 5 rotates on the inner side of the through hole. The upper side of the movable frame 4 A motor 8 is fixed on the side, and the motor 8 is connected to an external power supply and a switch through a wire. The shaft end of the motor 8 is connected to the outer periphery of a feeding shaft 5 through a bevel gear transmission, and the two feeding shafts 5 are connected through a belt and a pulley transmission. Specifically, the feeding shaft 5 connected to the motor 8 is a driving wheel, and the feeding shaft 5 of the driving wheel is connected to the adjacent feeding shaft 5 through a belt and a pulley transmission. When it is necessary to grind the door and window parts, it is necessary to first place the door and window parts vertically on the support wheel 31, and then control the clamping cylinder 9 to retract. The two movable frames 4 are returned to enlarge the space between the two movable frames 4, and then the door and window components are pushed forward so that one end of the door and window components is between the feeding wheels 6 on both sides, and then the clamping cylinder 9 is controlled to extend so that the door and window components are clamped between the feeding wheels 6 on both sides, and then the motor 8 is controlled to rotate. The rotation of a single motor 8 will cause the two feeding shafts 5 and the feeding wheel 6 to rotate. When the feeding shaft 5 and the feeding wheel 6 rotate, the door and window components can be automatically moved forward, so that manual feeding is not required during grinding, it is easy to use, and has high safety.

[0032] A grinding assembly is provided between the bottom plate 1 and the top plate 3. The grinding assembly is used to grind both sides of the material at the same time. The grinding assembly includes an upper double-threaded rod 13, a lower double-threaded rod 14, and two grinding shafts 15. A cross hole 16 is provided on one side of the H-shaped frame 2. Two round holes are provided on the two sides of the H-shaped frame 2 that are far away from each other. The upper double-threaded rod 13 and the lower double-threaded rod 14 rotate inside the round holes. The cross hole 16 is connected to the two round holes. Two sliders 17 are provided on the outer periphery of the upper double-threaded rod 13 through a threaded transmission connection. Two cross blocks 18 are provided on the outer periphery of the lower double-threaded rod 14 through a threaded transmission connection. The upper The end of the grinding shaft 15 rotates on the lower side of the slider 17, the lower end of the grinding shaft 15 rotates on the upper side of the cross block 18, the cross block 18 slides inside the cross hole 16, a grinding wheel 19 is fixedly provided on the outer periphery of the grinding shaft 15, a stepper motor 20 is fixedly provided on one side of the H-shaped frame 2, the stepper motor 20 is connected to an external power supply and a drive controller through a wire, an adjusting shaft 21 is fixedly provided on the shaft end of the stepper motor 20, and the adjusting shaft 21 is rotatably connected to one side of the H-shaped frame 2, specifically: a plurality of bearing seats are connected between the adjusting shaft 21 and the H-shaped frame 2, the bearing seats are rotatably connected to the adjusting shaft 21, and the bearing seats are fixedly provided to the H-shaped frame 2 The adjusting shaft 21 is connected to the upper double-threaded rod 13 through a bevel gear transmission, and the adjusting shaft 21 is connected to the lower double-threaded rod 14 through a bevel gear transmission. A receiving hole is provided on the upper side of the movable frame 4, and the adjusting shaft 21 is located in the receiving hole. Before grinding the door and window components, it is necessary to adjust the distance between the two grinding wheels 19 according to the thickness or welding height requirements of the door and window components. When the distance between the two grinding wheels 19 needs to be adjusted, it is necessary to control the stepper motor 20 to rotate a certain number of times in a certain reverse direction. When the stepper motor 20 rotates, it will drive the adjusting shaft 21 to rotate, and when the adjusting shaft 21 rotates, it will drive the upper double-threaded rod 14 to rotate. The threaded rod 13 and the lower double-threaded rod 14 rotate, and when the upper double-threaded rod 13 rotates, the two sliders 17 can be moved closer to or farther away from each other, and when the lower double-threaded rod 14 rotates, the two cross blocks 18 can be moved closer to or farther away from each other, and when the adjusting shaft 21 rotates, the movement speeds of the slider 17 and the cross block 18 are the same, and the movement directions of the slider 17 and the cross block 18 directly below it are also the same, so that the grinding wheel 19 can always be in a vertical state, and the grinding wheel 19 will move with the slider 17 and the cross block 18, so that automatic adjustment can be achieved, which can meet a variety of usage requirements.

[0033] The grinding assembly also includes a rotating assembly, which is used to drive the grinding shaft 15 to rotate. The rotating assembly includes a rotating shaft 22 and a grinding motor 23. The grinding motor 23 is fixed on one side of the H-shaped frame 2. The two sides of the H-shaped frame 2 are separated from each other and are provided with shaft holes. The rotating shaft 22 rotates on the inner side of the shaft hole. The shaft end of the grinding motor 23 is connected to the outer periphery of the rotating shaft 22 through a bevel gear transmission. The grinding motor 23 is connected to an external power supply and a switch through a wire. A connecting shaft 24 is provided on the lower side of the two sliders 17 to connect A connecting seat 25 is rotatably provided on the outer periphery of the shaft 24, and the connecting seat 25 is fixed on the lower side of the slider 17. The connecting shaft 24 and the grinding shaft 15 are connected by a bevel gear transmission. A worm wheel 26 is fixed on the outer periphery of the connecting shaft 24, and a worm 27 is connected to the lower side of the worm wheel 26 by meshing transmission. A connecting ring 28 is fixed on the inner side of the worm 27. A follower seat 29 is rotatably provided on the outer periphery of the connecting ring 28, and the follower seat 29 is fixed on one side of the slider 17. The connecting ring 28 is slidably sleeved on the rotating shaft. On the outer circumference of the rotating shaft 22, a driving groove is provided on the outer circumference of the rotating shaft 22, and a driving block 30 is fixedly provided on the inner side of the connecting ring 28, and the driving block 30 slides on the inner side of the driving groove. After adjusting the position of the grinding wheel 19, it is necessary to turn on the grinding motor 23, and the grinding motor 23 will drive the rotating shaft 22 to rotate. When the rotating shaft 22 rotates, it will drive the connecting ring 28 and the worm 27 to rotate through the driving block 30. When the worm 27 rotates, it will drive the worm wheel 26 and the connecting shaft 24 to rotate. When the connecting shaft 24 rotates, it will drive the grinding shaft 15 and the grinding wheel 19 to rotate through the bevel gear, so that the two grinding shafts 15 can be driven to rotate by a single grinding motor 23, which can save production costs. When the grinding wheel 19 rotates, the motor 8 is controlled to rotate, so that the door and window components move forward, and automatic grinding can be performed, and two surfaces can be polished at the same time, which has high grinding efficiency. Moreover, when adjusting the distance between the two grinding wheels 19, the connecting ring 28 will slide on the rotating shaft 22, so it will not affect the position of the adjusting grinding wheel 19.

[0034] A centering auxiliary component is provided between the two movable frames 4, and the centering auxiliary component includes an auxiliary gear 10, which rotates on the lower side of the top plate 3. An auxiliary frame 11 is fixedly provided on one side of the two movable frames 4, and the auxiliary frame 11 slides on the lower side of the top plate 3. An auxiliary rack 12 is fixedly provided on the side where the auxiliary frames 11 are close to each other. The auxiliary gear 10 is transmission-connected with the auxiliary rack 12 through meshing. When clamping the door and window components, the clamping cylinder 9 will extend, and the clamping cylinder 9 will drive one movable frame 4 to move, and one movable frame 4 will drive the other movable frame 4 to move through the auxiliary frame 11, the auxiliary rack 12 and the auxiliary gear 10, so that the two movable frames 4 can approach or move away from each other at the same time, so that the door and window components can be clamped in the center position between the two grinding wheels 19, so that the grinding thickness on both sides of the door and window components can be consistent, and the welding height on both sides of the door and window components can be guaranteed to be consistent.

[0035] This device has two motors 8, which are distributed on different sides. In addition, in a top view, the grinding wheel 19 is located between the two motors 8, thereby ensuring that the door and window components can be ground without stopping.

Claims

1. A welding and grinding device for aluminum alloy doors and windows, comprising a bottom plate (1), characterized in that: An H-shaped frame (2) and a top plate (3) are fixedly arranged in sequence on the upper side of the bottom plate (1); a material conveying assembly is arranged on the lower side of the top plate (3); the material conveying assembly is used to convey materials; a grinding assembly is arranged between the bottom plate (1) and the top plate (3); the grinding assembly is used to grind both sides of the material at the same time; and a plurality of supporting assemblies are arranged on the upper side of the bottom plate (1).

2. The welding and grinding device for aluminum alloy doors and windows according to claim 1 is characterized in that: The feeding assembly comprises two movable frames (4), two sides of the H-shaped frame (2) are provided with guide holes away from each other, the movable frame (4) slides on the inner side of the guide holes, one side of the movable frame (4) is provided with a push-pull assembly, a centering auxiliary assembly is provided between the two movable frames (4), the upper side of the movable frame (4) is provided with four through holes, a feeding shaft (5) is rotatably provided inside the through holes, a feeding wheel (6) is fixedly provided on the outer periphery of the feeding shaft (5), two stabilizing frames (7) are fixedly provided on the lower side of the movable frame (4), two through holes are provided on the lower side of the stabilizing frame (7), the feeding shaft (5) rotates on the inner side of the through holes, a motor (8) is fixedly provided on the upper side of the movable frame (4), the motor (8) is connected to an external power supply and a switch through a wire, the shaft end of the motor (8) is connected to the outer periphery of a feeding shaft (5) through a bevel gear transmission, and the two feeding shafts (5) are connected through a belt and a pulley transmission.

3. The welding and grinding device for aluminum alloy doors and windows according to claim 2 is characterized in that: The push-pull assembly comprises a clamping release cylinder (9), one side of the H-shaped frame (2) is provided with a mounting hole, the clamping release cylinder (9) is fixed inside the mounting hole, and the shaft end of the clamping release cylinder (9) is fixed on the movable frame (4).

4. The welding and grinding device for aluminum alloy doors and windows according to claim 2 is characterized in that: The centering auxiliary component comprises an auxiliary gear (10), the auxiliary gear (10) rotates on the lower side of the top plate (3), an auxiliary frame (11) is fixedly provided on one side of the two movable frames (4), the auxiliary frame (11) slides on the lower side of the top plate (3), an auxiliary rack (12) is fixedly provided on the side of the auxiliary frames (11) close to each other, and the auxiliary gear (10) is transmission-connected with the auxiliary rack (12) through meshing.

5. The welding and grinding device for aluminum alloy doors and windows according to claim 2 is characterized in that: The grinding assembly comprises an upper double-threaded rod (13), a lower double-threaded rod (14), and two grinding shafts (15); a cross hole (16) is provided on one side of the H-shaped frame (2); two circular holes are provided on two sides of the H-shaped frame (2) that are separated from each other; the upper double-threaded rod (13) and the lower double-threaded rod (14) rotate inside the circular holes; the cross hole (16) is connected to the two circular holes; two sliders (17) are provided on the outer circumference of the upper double-threaded rod (13) through a threaded transmission connection; two cross blocks (18) are provided on the outer circumference of the lower double-threaded rod (14) through a threaded transmission connection; the upper end of the grinding shaft (15) rotates on the lower side of the slider (17); the lower end of the grinding shaft (15) rotates on the upper side of the cross block (18); the cross block (18) slides on the cross block (18) A grinding wheel (19) is fixedly provided on the outer circumference of the grinding shaft (15) on the inner side of the letter hole (16); a stepping motor (20) is fixedly provided on one side of the H-shaped frame (2); the stepping motor (20) is externally connected to a power source and a driving controller via a wire; an adjusting shaft (21) is fixedly provided on the shaft end of the stepping motor (20); the adjusting shaft (21) is rotatably connected to one side of the H-shaped frame (2); the adjusting shaft (21) is connected to the upper double-threaded rod (13) via a bevel gear transmission; the adjusting shaft (21) is connected to the lower double-threaded rod (14) via a bevel gear transmission; a receiving hole is provided on the upper side of the movable frame (4); the adjusting shaft (21) is located in the receiving hole; and the grinding assembly further comprises a rotating assembly, which is used to drive the grinding shaft (15) to rotate.

6. The welding and grinding device for aluminum alloy doors and windows according to claim 5, characterized in that: The rotating assembly comprises a rotating shaft (22) and a grinding motor (23); the grinding motor (23) is fixed on one side of the H-shaped frame (2); two sides of the H-shaped frame (2) are provided with shaft holes which are far from each other; the rotating shaft (22) rotates on the inner side of the shaft hole; the shaft end of the grinding motor (23) is connected to the outer periphery of the rotating shaft (22) via a bevel gear transmission; a connecting shaft (24) is provided on the lower side of the two sliders (17); a connecting seat (25) is rotatably provided on the outer periphery of the connecting shaft (24); the connecting seat (25) is fixed on the lower side of the slider (17); the connecting shaft (24) and the grinding shaft (15) are connected via a bevel gear. A transmission connection is provided, wherein a worm wheel (26) is fixedly provided on the outer periphery of the connecting shaft (24), a worm (27) is provided below the worm wheel (26) through meshing transmission connection, a connecting ring (28) is fixedly provided on the inner side of the worm (27), a follower seat (29) is rotatably provided on the outer periphery of the connecting ring (28), the follower seat (29) is fixed on one side of the slider (17), the connecting ring (28) is slidably sleeved on the outer periphery of the rotating shaft (22), a driving groove is provided on the outer periphery of the rotating shaft (22), a driving block (30) is fixedly provided on the inner side of the connecting ring (28), and the driving block (30) slides on the inner side of the driving groove.

7. The welding and grinding device for aluminum alloy doors and windows according to claim 1, characterized in that: The support assembly comprises a support wheel (31), and the support wheel (31) is rotatably connected to the upper side of the base plate (1).

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