Aluminum alloy welding device

Abstract

The invention discloses an aluminum alloy welding device in the field of aluminum alloy welding, the aluminum alloy welding device comprises a welding part and four conveying parts, the welding part comprises a limiting mechanism and a plurality of welding mechanisms, the limiting mechanism comprises four extension rods, the two ends of each extension rod are sleeved with telescopic sleeves, the telescopic sleeves are slidably connected with the extension rods, and the conveying parts are connected with the extension rods. A square is defined by the four extension rods, every two adjacent fixing sleeves are perpendicular to each other and are fixedly connected, the multiple welding mechanisms are fixedly connected to the four top corners of the limiting mechanism, the four conveying parts are arranged on the four edges of the limiting mechanism in a surrounding mode, and the conveying parts are used for conveying aluminum alloy profiles to a lifting plate on the outer side of the limiting mechanism. And polishing mechanisms for polishing the surfaces of the aluminum alloy profiles are arranged on the two sides of the conveying part. According to the device, the telescopic sleeve can slide according to the size of the aluminum alloy profile needing to be welded, the telescopic sleeve can be lengthened or shrunk to the size of the aluminum alloy profile needing to be welded, and the assembling and welding requirements under most conditions are met to a great extent.

Description

Technical Field

[0001] The invention belongs to the field of aluminum alloy welding, and in particular relates to an aluminum alloy welding device. Background Art

[0002] Aluminum and its alloys are one of the most widely used metals among non-ferrous metals. Aluminum alloy materials have the advantages of high specific strength, corrosion resistance, good electrical and thermal conductivity, and weldability. Aluminum alloy profiles are components or materials made of aluminum alloys. Aluminum alloy profile doors and windows refer to door and window products made of aluminum alloys. This type of door and window is usually favored for its excellent performance, such as light weight, durability, low rust, and high design flexibility. In the construction industry, aluminum alloy profile doors and windows are widely used in residential and commercial buildings; aluminum alloy profile doors and windows are welded from aluminum alloy profiles, and workers are required to align the ends of the aluminum alloy profiles and then weld them together to make aluminum alloy profile doors and windows; during the welding process, it is necessary to ensure that the aluminum alloy profiles are aligned with each other. Therefore, after clamping the aluminum alloy profiles on the fixture, workers need to adjust to ensure that the aluminum alloy profiles are aligned with each other before welding, which causes limitations.

[0003] The existing patent with the announcement number "CN 118650338 A" discloses "a welding device for the production and processing of aluminum alloy profiles and a welding method thereof". The device includes a base, a clamping seat and a welding mechanism; the welding mechanism is arranged at the four corners of the base; a clamping block is slidably connected to the clamping seat, and a clamping motor is fixedly connected to the clamping seat; a screw rod that is threadedly matched with the clamping block is fixedly connected to the output end of the clamping motor; a detection mechanism and an adjustment mechanism are arranged on the base; the clamping seat is installed on the base through the adjustment mechanism; the present invention detects the position difference of the aluminum alloy profile on the clamping seat in the horizontal, longitudinal and vertical directions by arranging a detection mechanism, and then the adjustment mechanism adjusts the position of one of the aluminum alloy profiles so that the two aluminum alloy profiles are aligned, thereby completing the position adjustment of the aluminum alloy profile, and no manual adjustment is required. However, although the device can align the aluminum alloy profiles before welding and then adjust the position of the aluminum alloy profiles before welding, the position of the clamping device of the device is relatively fixed in the device and cannot be adapted to the clamping and alignment of aluminum alloy profiles of more different sizes, and has limitations in use. Summary of the invention

[0004] The present invention is intended to provide an aluminum alloy welding device to solve the problem that the existing welding devices are limited in use in welding aluminum alloy profiles of different sizes.

[0005] An aluminum alloy welding device in the present scheme includes a welding part and four conveying parts, the welding part includes a limiting mechanism and multiple welding mechanisms, the limiting mechanism includes four extension rods, both ends of the four extension rods are provided with telescopic sleeves, the telescopic sleeves are slidably connected to the extension rods, the four extension rods are surrounded by a square, two adjacent fixed sleeves are perpendicular to each other and fixedly connected, multiple welding mechanisms are fixedly connected to the four vertex corners of the limiting mechanism, the outer sides of the fixed sleeves are slidably connected to lifting plates, the lifting plates are fixedly connected to a driver for driving them to rise and fall, the lifting plates are parallel to the ground, the four conveying parts are arranged around the four sides of the limiting mechanism, the conveying part is used to convey the aluminum alloy profile to the lifting plate on the outer side of the limiting mechanism, and both sides of the conveying part are provided with a grinding mechanism for grinding the surface of the aluminum alloy profile.

[0006] The working principle of this scheme is as follows: the limiting mechanism of the device forms a square. When welding is required, the telescopic sleeve is slid so that the telescopic sleeve slides along the periphery of the extension rod to a size consistent with the inner diameter of the square formed by the aluminum alloy profile to be welded, and then a plurality of aluminum alloy profiles to be welded are placed on the surface of the conveying part, and the grinding mechanism is started to grind the welding part on the surface of the aluminum alloy profile to be welded located on the conveying part. After the grinding is completed, the conveying part conveys the aluminum alloy profile to be welded to the lifting plate on the outer wall of the limiting mechanism. Because the extension rod on the same side contains two telescopic sleeves, the side wall of each telescopic sleeve is slidably connected with a lifting plate, so the two lifting plates can stably place the aluminum alloy profile on the lifting plate. After the aluminum alloy profiles on all sides are placed stably, the welding mechanism can be started to weld the joints of the adjacent aluminum alloy profiles. After welding is completed, the driver of the lifting plate is started to drive the welded aluminum alloy profiles to rise together, so that the aluminum alloy profiles are separated from the telescopic sleeve of the limiting mechanism, which is convenient for taking out the welded aluminum alloy profiles.

[0007] Beneficial effects: 1. The device can slide the telescopic sleeve according to the size of the aluminum alloy profile to be welded, extend or reduce the size of the limit mechanism, and adjust it to the size of the aluminum alloy profile to be welded, which greatly meets the assembly welding requirements in most cases;

[0008] 2. The conveyor unit is used to convey the aluminum alloy profiles to be welded to the top of the lifting plate for welding, which avoids the inconvenience and time waste of manually taking the aluminum alloy profiles.

[0009] 3. The device can weld at the four corners of the square surrounded by aluminum alloy profiles at the same time, avoiding the problem of skewness during alignment after single-side welding, which leads to deformity during subsequent assembly into a square, and reduces material waste;

[0010] 4. After welding, use the lifting plate to push the welded aluminum alloy profile out from the side wall of the limit mechanism to facilitate the removal of the welded aluminum alloy profile;

[0011] 5. The conveying part can grind the surface of the aluminum alloy profile to be welded, remove the oxides and impurities on the surface, make it rough, improve the connectivity of the joint at the welding point, and make the welding more stable.

[0012] Furthermore, the plurality of welding mechanisms are respectively arranged on the surface and bottom of the limiting mechanism, and are symmetrically arranged relative to the limiting mechanism. The welding mechanism includes a base and a lifting rod. The base is fixedly connected to the telescopic sleeve and is perpendicular to the surface of the telescopic sleeve. The lifting rod is sleeved in the base, and the lifting rod is fixedly connected to a driver for driving it to rise and fall. The end of the lifting rod away from the base is rotatably connected to an electric telescopic rod, and the electric telescopic rod is fixedly connected to a motor that drives it to rotate. The telescopic end of the electric telescopic rod is fixedly connected to a welding machine, and the welding end of the welding machine faces downward.

[0013] When in use, after the aluminum alloy profile to be welded slides above the lifting plate, the welding points of the two adjacent aluminum alloy profiles are located at the joints at both ends, that is, the four vertex corners, and then the motor of the electric telescopic rod can be started to drive the electric telescopic rod to rotate to the top of the required welding point, so that the welding point of the welding machine is aligned with the joint, and then the driver of the lifting rod can be started to drive the electric telescopic rod down until the welding point of the welding machine contacts the joint for welding. During welding, the electric telescopic rod can be started to drive the welding machine to move until the welding of the joint on the same side is completed. The device can weld the joints at the four vertex corners at the same time and weld the joints on both sides together, saving manufacturing time and avoiding the problem of docking errors during single welding.

[0014] Furthermore, the conveying part includes a conveyor belt and two support plates. The surface of the conveyor belt is flush with the lifting plate when it is lowered to the bottom. The two support plates are respectively located on both sides of the conveyor belt. The inner side walls of the two support plates are fixedly connected with a placement platform. The placement platform and the support plates are perpendicular to each other. A pushing mechanism is provided on the surface of the placement platform. The pushing mechanism is fixedly connected with a driver for driving it to rise and fall. The top of the pushing mechanism is slightly lower than the surface of the conveyor belt and tilts downward from one side of the conveyor belt to one side of the lifting plate. One side of the pushing mechanism is connected to the conveyor belt, and the other side is connected to the lifting plate.

[0015] When in use, the conveyor belt conveys the aluminum alloy profile to be welded to the top of the pushing mechanism. At this time, the aluminum alloy profile is stuck between the pushing mechanism and the lifting plate. The driver of the pushing mechanism is started to drive the pushing mechanism to rise, so that the top of the pushing mechanism is higher than the lifting plate. Then, because the top of the pushing mechanism is inclined toward the lifting plate, the aluminum alloy profile will fall onto the lifting plate due to gravity as the pushing mechanism rises. Then the pushing mechanism continues to rise until the pushing end of the pushing mechanism rises to the side wall of the aluminum alloy profile. The pushing end of the pushing mechanism can be started to push the aluminum alloy profile to the side wall of the telescopic sleeve to make it close to it, which plays a positioning role for the aluminum alloy profile, avoids the occurrence of uneven butt joints at the welding point, and can stabilize the aluminum alloy profile, so that it is not easy to move or deviate during welding, thereby increasing the welding quality.

[0016] Furthermore, the pushing mechanism includes a push rod and a cylinder, wherein the push rod is fixedly connected to the surface of the placement platform and is perpendicular to the placement platform, and the cylinder is fixedly connected to the pushing end of the push rod, and the pushing end of the cylinder faces one side of the lifting plate, and the pushing end of the cylinder is fixedly connected to a rubber pad, and the top of the cylinder is fixedly connected to a connecting plate, and the top of the connecting plate is inclined downward from the conveyor belt to one side of the lifting plate. When in use, after the aluminum alloy profile reaches the top of the connecting plate, the push rod is started, and the push rod drives the cylinder to rise, so that the aluminum alloy profile on the connecting plate slides down to the lifting plate, and then until the rubber pad moves to the side wall of the aluminum alloy profile, and then the cylinder is started to drive the rubber pad to move toward the aluminum alloy profile, so that it is compressed to the side wall of the aluminum alloy profile, and it is fitted with the side wall of the telescopic sleeve to position the aluminum alloy profile.

[0017] Furthermore, two limit rods are provided on the conveyor belt, and the limit rods are in an inverted "concave" shape. The two ends of the limit rods are respectively slidably connected to the side walls of the two support plates, and are fixedly connected to a driver for driving the limit rods to rise and fall. The two limit rods are provided with a plurality of pressure plates on the side close to the conveyor belt, and the pressure plates are respectively fixedly connected to the two limit rods. When an aluminum alloy profile is provided on the conveyor belt, the driver of the limit rod can be driven to drive the two limit rods to rise and fall, so that the surface of the pressure plate fixedly connected below contacts the top of the aluminum alloy profile, and the limit can be performed according to the required size to prevent aluminum alloy profiles of different sizes from being mixed in.

[0018] Furthermore, the grinding mechanism includes a bracket, a telescopic rod and a grinding sheet, wherein the bracket is fixedly connected to the side wall of the support plate, the bracket is vertically upward, and the side of the bracket close to the conveyor belt is fixedly connected to an electric extension rod, the telescopic rod is fixedly connected to the extension end of the electric extension rod, and the telescopic end of the telescopic rod faces downward, and the grinding sheet is rotatably connected to the telescopic end of the telescopic rod. When in use, when the aluminum alloy profile is located below the grinding sheet, the telescopic rod can be started to drive the grinding sheet to descend to the surface of the aluminum alloy profile to grind the aluminum alloy profile, and the electric extension rod can match aluminum alloy profiles of different sizes for grinding.

[0019] Furthermore, a telescopic lever is provided on one side of the top of the two support plates near the lifting plate, and the telescopic end of the telescopic lever faces the conveyor belt. When the previous aluminum alloy profile has not been welded, the telescopic lever can block the subsequent aluminum alloy profile behind the telescopic lever to prevent the aluminum alloy profile from moving to the front and affecting the welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of an aluminum alloy welding device of the present invention;

[0021] Figure 2 for Figure 1 A top view of

[0022] Figure 3 for Figure 1 Structural schematic diagram of the middle welding part;

[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the transmission part. DETAILED DESCRIPTION

[0024] The following is further described in detail through specific implementation methods:

[0025] The figure marks in the drawings of the specification include: support plate 1, conveyor belt 2, limit rod 3, grinding mechanism 4, bracket 41, electric extension rod 42, telescopic rod 43, grinding sheet 44, pressing plate 5, welding mechanism 6, base 61, lifting rod 62, electric telescopic rod 63, welding machine 64, telescopic gear rod 7, limit mechanism 8, telescopic sleeve 81, extension rod 82, support leg 83, lifting plate 9, pushing mechanism 10, connecting plate 101, rubber pad 102, cylinder 103, push rod 104, placement platform 11.

[0026] The embodiment is basically as shown in the attached Figure 1 to Figure 4As shown: an aluminum alloy welding device, including a welding part and four conveying parts, the welding part includes a limiting mechanism 8 and eight welding mechanisms 6, the limiting mechanism 8 is provided with four extension rods 82, both ends of the four extension rods 82 are sleeved with telescopic sleeves 81, the telescopic sleeves 81 are slidably connected relative to the extension rods 82, the cross-section of the telescopic sleeve 81 is square, the four extension rods 82 form a square, and the telescopic sleeves 81 sleeved at the ends of two adjacent extension rods 82 are perpendicular to each other and fixedly connected, the bottoms of the longer two sides of the telescopic sleeves 81 are fixedly connected with support legs 83, and the side of the telescopic sleeve 81 facing outward is provided with a lifting plate 9, the lifting plate 9 is slidably connected to the outer wall of the telescopic sleeve 81, and the lifting plate 9 is fixedly connected There is a linear motor driving the lifting and lowering thereof. The eight welding mechanisms 6 are divided into two groups, wherein four welding mechanisms 6 are respectively located on the surface of the four corners of the square formed by the extension rod 82 and the telescopic sleeve 81, and the other four welding mechanisms 6 are symmetrical with the four welding mechanisms 6 on the surface and are located on the side of the telescopic sleeve 81 close to the ground. The welding mechanism 6 includes a base 61 and a lifting rod 62. The base 61 is fixedly connected to the telescopic sleeve 81, and the lifting rod 62 is sleeved inside the base 61 and slidably connected thereto. The end of the lifting rod 62 away from the base 61 is rotatably connected to an electric telescopic rod 63, and the telescopic end of the electric telescopic rod 63 is fixedly connected to a welding machine 64, and the welding end of the welding machine 64 faces one side of the telescopic sleeve 81;

[0027] Four conveying parts are arranged around the four sides of the limiting mechanism 8, and the conveying part includes a conveyor belt 2 and two support plates 1. The two support plates 1 are respectively located on both sides of the conveyor belt 2. The conveying direction of the conveyor belt 2 is toward one side of the limiting mechanism 8. The surface of the conveyor belt 2 is flush with the lifting plate 9 when it descends to the lowest end. Two limit rods 3 are arranged above the conveyor belt 2. The limit rods 3 are inverted "concave" shape. Both ends of the limit rods 3 are slidably connected to the outer side walls of the support plates 1, and the limit rods 3 are fixedly connected to the linear motor. Two pressure plates 5 are arranged on the side of the two limit rods 3 close to the conveyor belt 2. The pressure plates 5 are fixedly connected to the two limit rods 3. The two support plates 1 are fixedly connected to the side of the limiting mechanism 8 with a telescopic gear rod 7, and the telescopic end of the telescopic gear rod 7 faces one side of the conveyor belt 2.

[0028] The conveying part is also provided with two grinding mechanisms 4 and two pushing mechanisms 10. The grinding mechanism 4 includes a bracket 41 and a telescopic rod 43. The bracket 41 is located between the two limit rods 3, and the bracket 41 is fixedly connected to the side wall of the support plate 1. The end of the bracket 41 away from the support plate 1 is fixedly connected to an electric extension rod 42, and the extension end of the electric extension rod 42 faces one side of the conveyor belt 2, and the electric extension rod 42 and the bracket 41 are perpendicular to each other. The telescopic rod 43 is fixedly connected to the end of the electric extension rod 42 away from the bracket 41, and the lifting end of the electric telescopic rod 63 is vertically downward and rotatably connected to a grinding sheet 44, and the grinding sheet 44 is fixedly connected to a motor. The two grinding mechanisms 4 are symmetrically arranged;

[0029] The pushing mechanism 10 is located between the conveyor belt 2 and the lifting plate 9. A placing platform 11 is fixedly connected to one side of the support plate 1 close to the limiting mechanism 8. The placing platform 11 is parallel to the ground and is located between the two support plates 1. A push rod 104 is fixedly connected to the surface of the placing platform 11. The telescopic end of the push rod 104 is fixedly connected to a cylinder 103. The telescopic end of the cylinder 103 points to the limiting mechanism 8, and the telescopic end of the cylinder 103 is fixedly connected to a rubber pad 102. The top of the cylinder 103 is fixedly connected to a connecting plate 101. The surface of the connecting plate 101 is inclined downward from one side of the conveyor belt 2 to one side of the lifting plate 9. The two pushing mechanisms 10 are symmetrical to each other.

[0030] The specific implementation process is as follows: when in use, according to the size of the aluminum alloy profile to be welded, slide the telescopic sleeve 81 so that the telescopic sleeve 81 slides along the extension rod 82 to expand or shrink, so that the limiting mechanism 8 is adjusted to the inner diameter of the square aluminum alloy profile to be welded, and then the aluminum alloy profile to be welded is placed on the surface of the conveyor belt 2, and the linear motor of the limiting rod 3 is started to drive the limiting rod 3 and the pressure plate 5 to move to the top of the aluminum alloy profile to avoid the mixing of aluminum alloy profiles that do not meet the specifications and affect the welding efficiency. When the aluminum alloy profile is transported to the bottom of the grinding mechanism 4 by the conveyor belt 2, the telescopic rod 43 of the grinding mechanism 4 can be started to drive the grinding sheet 44 to move downward until it contacts the surface of the aluminum alloy profile, and then the grinding sheet 44 is rotated to grind the bottom, and the electric extension rod 42 of the grinding mechanism 4 can also drive the grinding sheet 44 to move toward the center of the conveyor belt 2 to match aluminum alloy profiles of more sizes;

[0031] When one of the aluminum alloy profiles passes through the telescopic lever 7, the telescopic lever 7 can be started to extend toward the center of the conveyor belt 2, blocking the subsequent aluminum alloy profiles at the rear to prevent the aluminum alloy profiles at the rear from interfering with the welding. After the conveyor belt 2 transfers the aluminum alloy profile to be welded to the connecting plate 101 above the pushing mechanism 10, the push rod 104 of the pushing mechanism 10 can be started to drive the cylinder 103 to rise. Because the connecting plate 101 above the cylinder 103 is inclined, the aluminum alloy profile will slide toward the lifting plate 9 with gravity. After it slides toward the lifting plate 9, the push rod 104 is continued to be started to drive the cylinder 103 to rise until the rubber pad 102 is exposed from the lifting plate 9. The cylinder 103 can then be started to drive the rubber pad 102 to move toward the side wall of the aluminum alloy profile and push it to the end of the telescopic sleeve 81. Side wall, because the end of the square aluminum alloy profile will be cut into an acute angle for splicing, the aluminum alloy profile to be welded can be pushed to the side wall of the telescopic sleeve 81 to position the aluminum alloy profile, and then the electric telescopic rod 63 of the welding mechanism 6 can be started to rotate it along the lifting rod 62 to the top of the joint to be welded, and then the lifting rod 62 is started to drive it to move to one side of the aluminum alloy profile until the welding machine 64 contacts the joint and welds it. With the help of the electric telescopic rod 63, the welding machine 64 can be driven to move to each part of the joint to be welded for welding. After welding is completed, the electric telescopic rod 63 is rotated to drive the welding machine 64 to rotate to the side away from the aluminum alloy profile, and then multiple lifting plates 9 can be started at the same time to drive the welded aluminum alloy profile to rise as a whole and disengage from the limiting mechanism 8, which is convenient for taking the aluminum alloy profile.

[0032] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An aluminum alloy welding device, characterized in that: It includes a welding part and four conveying parts, the welding part includes a limiting mechanism and multiple welding mechanisms, the limiting mechanism includes four extension rods, both ends of the four extension rods are provided with telescopic sleeves, the telescopic sleeves are slidably connected to the extension rods, the four extension rods form a square, two adjacent fixed sleeves are perpendicular to each other and fixedly connected, multiple welding mechanisms are fixedly connected to the four vertex corners of the limiting mechanism, the outer sides of the fixed sleeves are slidably connected with lifting plates, the lifting plates are fixedly connected with a driver for driving them to rise and fall, the lifting plates are parallel to the ground, the four conveying parts are arranged around the four sides of the limiting mechanism, the conveying part is used to convey the aluminum alloy profile to the lifting plate outside the limiting mechanism, and both sides of the conveying part are provided with grinding mechanisms for grinding the surface of the aluminum alloy profile.

2. The aluminum alloy welding device according to claim 1, characterized in that: The multiple welding mechanisms are respectively arranged on the surface and bottom of the limiting mechanism, and are symmetrically arranged relative to the limiting mechanism. The welding mechanism includes a base and a lifting rod. The base is fixedly connected to the telescopic sleeve and is perpendicular to the surface of the telescopic sleeve. The lifting rod is sleeved in the base, and the lifting rod is fixedly connected to a driver for driving it to rise and fall. The end of the lifting rod away from the base is rotatably connected to an electric telescopic rod, and the electric telescopic rod is fixedly connected to a motor that drives it to rotate. The telescopic end of the electric telescopic rod is fixedly connected to a welding machine, and the welding end of the welding machine faces downward.

3. The aluminum alloy welding device according to claim 2, characterized in that: The conveying part includes a conveyor belt and two support plates. The surface of the conveyor belt is flush with the lifting plate when it is lowered to the bottom. The two support plates are respectively located on both sides of the conveyor belt. The inner side walls of the two support plates are fixedly connected with a placement platform. The placement platform and the support plates are perpendicular to each other. A pushing mechanism is provided on the surface of the placement platform. The pushing mechanism is fixedly connected with a driver for driving it to rise and fall. The top of the pushing mechanism is slightly lower than the surface of the conveyor belt and tilts downward from one side of the conveyor belt to one side of the lifting plate. One side of the pushing mechanism is connected to the conveyor belt, and the other side is connected to the lifting plate.

4. The aluminum alloy welding device according to claim 3, characterized in that: The pushing mechanism includes a push rod and a cylinder. The push rod is fixedly connected to the surface of the placement platform and is perpendicular to the placement platform. The cylinder is fixedly connected to the pushing end of the push rod. The pushing end of the cylinder faces one side of the lifting plate. The pushing end of the cylinder is fixedly connected to a rubber pad. The top of the cylinder is fixedly connected to a connecting plate. The top of the connecting plate is inclined downward from the conveyor belt to one side of the lifting plate.

5. The aluminum alloy welding device according to claim 4, characterized in that: Two limit rods are placed on the conveyor belt, and the limit rods are in an inverted "concave" shape. The two ends of the limit rods are respectively slidably connected to the side walls of the two support plates, and are fixedly connected to a driver for driving them to rise and fall. A plurality of pressure plates are provided on one side of the two limit rods close to the conveyor belts, and the pressure plates are respectively fixedly connected to the two limit rods.

6. The aluminum alloy welding device according to claim 5, characterized in that: The grinding mechanism includes a bracket, a telescopic rod and a grinding plate. The bracket is fixedly connected to the side wall of the support plate, the bracket is vertically upward, and the side of the bracket close to the conveyor belt is fixedly connected to an electric extension rod, the telescopic rod is fixedly connected to the extension end of the electric extension rod, and the telescopic end of the telescopic rod faces downward, and the grinding plate is rotatably connected to the telescopic end of the telescopic rod.

7. The aluminum alloy welding device according to claim 6, characterized in that: A telescopic lever is provided on one side of the top of the two support plates close to the lifting plate, and the telescopic end of the telescopic lever faces the conveyor belt.

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