A welding device for butt welding of aluminum alloy pipes

Abstract

This utility model discloses a welding device for butt welding of aluminum alloy pipes, including a bracket. A vertically movable welding head is mounted on the bracket via a lifting mechanism. The bracket also has two central clamping mechanisms, which are symmetrically arranged on both sides below the welding head. The two central clamping mechanisms horizontally clamp the workpiece and are opposite each other. The central clamping mechanisms are rotatably mounted on the bracket. The two central clamping mechanisms are driven by a rotating mechanism to rotate synchronously and in the same direction. The clamping center and the rotation center of the central clamping mechanism are located on the same horizontal line. The bracket also has a receiving funnel located below the welding head. The lower end of the receiving funnel is connected to a scrap box via a feeding pipe. One side of the scrap box has a scrap trough that can slide inside the scrap box via a drawer-type structure to collect welding slag during welding, preventing it from spilling on the ground and facilitating cleaning and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a welding device for butt welding of aluminum alloy pipes. Background Technology

[0002] In the production of hardware products, it is often necessary to join two sections of aluminum alloy tubes together and fix them by welding. Usually, when welding two sections of aluminum alloy tubes, the welding head is driven by a robotic arm to circle around the aluminum alloy tube. However, this structure produces welding slag that spills onto the ground, causing inconvenience for subsequent cleaning and maintenance. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model proposes a welding device for butt welding of aluminum alloy pipes.

[0004] To achieve the above-mentioned technical effects, the present invention adopts the following solution:

[0005] A welding device for butt welding of aluminum alloy tubes includes a support, on which a vertically movable welding head is mounted via a lifting mechanism. The support also has two central clamping mechanisms symmetrically arranged on both sides below the welding head. The two central clamping mechanisms horizontally clamp the workpiece and are opposite to each other. The central clamping mechanisms are rotatably mounted on the support. The two central clamping mechanisms are driven by a rotating mechanism to rotate synchronously and in the same direction. The clamping center and the rotation center of the central clamping mechanism are located on the same horizontal line.

[0006] The support is also equipped with a receiving funnel located below the welding head. The lower end of the receiving funnel is connected to a waste bin through a discharge pipe. One side of the waste bin is equipped with a waste trough that can slide inside the waste bin through a drawer-type structure.

[0007] In a preferred embodiment, the central clamping mechanism includes a rotating plate rotatably connected to the bracket. A mounting bracket is fixedly mounted on the rotating plate. A through hole for the aluminum alloy tube to pass through is horizontally provided on the mounting bracket. The center of the through hole, the rotation center, and the clamping center are located on the same horizontal line. Two clamping blocks are provided on one end face of the mounting bracket facing another central clamping mechanism. The two clamping blocks are symmetrically arranged on both sides of the through hole. The two clamping blocks are slidably mounted on the mounting bracket. The sliding direction of the two clamping blocks is parallel to the line connecting the two clamping blocks. The two clamping blocks are driven to slide towards or away from each other by a synchronization mechanism. An arc groove is provided on each of the two opposite surfaces of the two clamping blocks. The center between the two arc grooves is the clamping center.

[0008] In a preferred embodiment, the synchronization mechanism includes a first motor mounted on a mounting frame, a worm gear mounted on the output end of the first motor, a rotating double-threaded screw mounted on the mounting frame, two threads on the double-threaded screw respectively passing through two clamping blocks, the length direction of the double-threaded screw being parallel to the sliding direction of the clamping blocks, and a worm wheel fixedly mounted on the double-threaded screw, the worm wheel being meshed with the worm gear.

[0009] In a preferred embodiment, the end face of the mounting bracket facing the other centrally located clamping mechanism is provided with slide rails on both sides of the through hole. The length direction of the slide rails is parallel to the sliding direction of the clamping blocks. The clamping blocks are provided with slide grooves that match the slide rails. The two clamping blocks are respectively locked on the two slide rails and slide.

[0010] In a preferred embodiment, the rotating plate is rotatably mounted on the bracket via a rotating shaft. The rotating shaft is fixedly connected to the rotating plate and rotatably connected to the bracket. A through hole passes through the rotating plate and the rotating shaft. A first synchronous pulley is fixedly sleeved on the rotating shaft. A rotating rod is mounted on the bracket. The two ends of the rotating rod are respectively provided with second synchronous pulleys corresponding to the two first synchronous pulleys. The first synchronous pulleys and their corresponding second synchronous pulleys are connected by a first synchronous belt. A second motor is mounted on the bracket. A third synchronous pulley is mounted on the output end of the second motor. A fourth synchronous pulley is fixedly mounted on the rotating rod. The third synchronous pulley and the fourth synchronous pulley are connected by a second synchronous belt.

[0011] In a preferred embodiment, the lifting mechanism includes a cylinder vertically mounted on a bracket, the telescopic rod of the cylinder extending downwards and fixedly connected to a mounting plate, and the welding head mounted on the mounting plate.

[0012] Compared with existing technologies, the beneficial effects are:

[0013] This invention features a simple structure and convenient operation. A receiving funnel is installed below the welding head, allowing welding slag to fall into it. The slag then flows along a discharge pipe into a waste bin. A drawer-type waste bin is located inside the waste bin and connected to the discharge pipe. Welding slag falling from the discharge pipe into the waste bin is collected. Once full, the waste bin is pulled out for cleaning. This design effectively collects welding slag, preventing spillage and simplifying cleaning and maintenance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a partial cross-sectional schematic diagram of the structure in this utility model;

[0016] Figure 3 This is a partial structural side view of the central clamping mechanism in this utility model.

[0017] Reference numerals: 1. Bracket; 2. Welding head; 3. Cylinder; 4. Mounting plate; 5. Rotating plate; 6. Mounting bracket; 7. Slide rail; 8. Clamping block; 9. First motor; 10. Worm gear; 11. Worm wheel; 12. First synchronous pulley; 13. Second synchronous pulley; 14. First synchronous belt; 15. Rotating rod; 16. Second motor; 17. Third synchronous pulley; 18. Fourth synchronous pulley; 19. Second synchronous belt; 20. Rotating shaft; 21. Through hole; 22. Circular groove; 23. Double threaded rod; 24. Aluminum alloy tube. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] A welding device for butt welding of aluminum alloy tubes includes a support 1. A vertically movable welding head 2 is mounted on the support 1 via a lifting mechanism. The welding head 2 is of the prior art and is connected to a welding host. The support 1 is also provided with two central clamping mechanisms, which are symmetrically arranged on both sides below the welding head 2. The two central clamping mechanisms horizontally clamp the workpiece and are opposite to each other. The central clamping mechanisms are rotatably mounted on the support 1. The two central clamping mechanisms are driven by a rotating mechanism to rotate synchronously and in the same direction. The clamping center and the rotation center of the central clamping mechanism are located on the same horizontal line.

[0020] The support 1 is also provided with a receiving funnel 25 located below the welding head 2. The lower end of the receiving funnel 25 is connected to a waste bin 27 through a discharge pipe 26. One side of the waste bin 27 is provided with a waste trough 28 that can slide inside the waste bin 27 through a drawer-type structure.

[0021] The aluminum alloy tubes 24 to be welded at both ends are clamped by two central clamping mechanisms, and the two end faces to be welded are brought together. The lifting mechanism drives the welding head 2 to descend and weld the two aluminum alloy tubes 24 at the joint position. During the welding process, the two aluminum alloy tubes at both ends rotate together under the drive of the clamping and central mechanisms, so as to achieve splicing in a way that the aluminum alloy tubes rotate while the welding head 2 does not rotate. The structure of this utility model is simple, thereby reducing the cost of the equipment and making it suitable for the production needs of small enterprises.

[0022] A receiving funnel 25 is installed below the welding head 2. Welding slag produced during welding falls into the receiving funnel 25 and then flows along the discharge pipe 26 into the waste bin 27. A waste trough 28, with a drawer-type structure, is located inside the waste bin 27 and connected to the discharge pipe 26. Welding slag in the discharge pipe 26 falls into the waste trough 28 for collection. Once full, the waste trough is pulled out for cleaning. This solution collects welding slag during welding, preventing spillage and facilitating cleaning and maintenance.

[0023] In a preferred embodiment, the central clamping mechanism includes a rotating plate 5 rotatably connected to the bracket 1. A mounting bracket 6 is fixedly mounted on the rotating plate 5. A through hole 21 for the aluminum alloy tube to pass through is horizontally provided on the mounting bracket 6. The center of the through hole 21 is on the same horizontal line as the rotation center and the clamping center. Two clamping blocks 8 are provided on one end face of the mounting bracket 6 facing another central clamping mechanism. The two clamping blocks 8 are symmetrically arranged on both sides of the through hole 21. The two clamping blocks 8 are slidably mounted on the mounting bracket 6. The sliding direction of the two clamping blocks 8 is parallel to the line connecting the two clamping blocks 8. The two clamping blocks 8 are driven to slide towards or away from each other by a synchronization mechanism. An arc groove 22 is provided on each of the two opposite surfaces of the two clamping blocks 8. The center between the two arc grooves 22 is the clamping center.

[0024] The aluminum alloy tube is inserted into the through hole 21 and passes between the two clamping blocks 8. Under the drive rod of the synchronization mechanism, the two clamping blocks 8 move towards each other and clamp the aluminum alloy tube through the two arc grooves 22.

[0025] In a preferred embodiment, the synchronization mechanism includes a first motor 9 mounted on a mounting frame 6, a worm gear 10 mounted on the output end of the first motor 9, a rotating double-threaded screw mounted on the mounting frame 6, two threads on the double-threaded screw respectively passing through two clamping blocks 8, the length direction of the double-threaded screw being parallel to the sliding direction of the clamping blocks 8, and a worm wheel 11 fixedly mounted on the double-threaded screw, the worm wheel 11 being meshed with the worm gear 10.

[0026] In a preferred embodiment, the end face of the mounting bracket 6 facing the other central clamping mechanism is provided with slide rails 7 on both sides of the through hole 21. The length direction of the slide rails 7 is parallel to the sliding direction of the clamping blocks 8. The clamping blocks 8 are provided with sliding grooves that match the slide rails 7. The two clamping blocks 8 are respectively locked on the two slide rails 7 and slide.

[0027] In a preferred embodiment, the rotating plate 5 is rotatably mounted on the bracket 1 via a rotating shaft 20. The rotating shaft 20 is fixedly connected to the rotating plate 5 and rotatably connected to the bracket 1. The through hole 21 penetrates the rotating plate 5 and the rotating shaft 20. A first synchronous pulley 12 is fixedly sleeved on the rotating shaft 20. A rotating rod 15 is mounted on the bracket 1. The two ends of the rotating rod 15 are respectively provided with second synchronous pulleys 13 corresponding to the two first synchronous pulleys 12. The first synchronous pulleys 12 and the corresponding second synchronous pulleys 13 are connected by a first synchronous belt 14. A second motor is provided on the bracket 1. A third synchronous pulley 17 is mounted on the output end of the second motor. A fourth synchronous pulley 18 is fixedly mounted on the rotating rod 15. The third synchronous pulley 17 and the fourth synchronous pulley 18 are connected by a second synchronous belt 19.

[0028] In a preferred embodiment, the lifting mechanism includes a cylinder 3 vertically mounted on a bracket 1, the telescopic rod of the cylinder 3 extending downward and fixedly connected to a mounting plate 4, and the welding head 2 mounted on the mounting plate 4.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A welding device for butt welding of aluminum alloy pipes, characterized in that, Includes a bracket (1), on which a vertically movable welding head (2) is mounted via a lifting mechanism. The bracket (1) is also provided with two central clamping mechanisms, which are symmetrically arranged on both sides below the welding head (2). The two central clamping mechanisms horizontally clamp the workpiece and are opposite to each other. The central clamping mechanisms are rotatably mounted on the bracket (1). The two central clamping mechanisms are driven by a rotating mechanism to rotate synchronously and in the same direction. The clamping center and the rotation center of the central clamping mechanism are located on the same horizontal line. The bracket (1) is also provided with a receiving funnel (25) located below the welding head (2). The lower end of the receiving funnel (25) is connected to a waste bin (27) through a feeding pipe (26). One side of the waste bin (27) is provided with a waste trough (28) that can slide inside the waste bin (27) through a drawer-type structure.

2. The welding device for butt welding of aluminum alloy pipes as described in claim 1, characterized in that, The central clamping mechanism includes a rotating plate (5) rotatably connected to the bracket (1). A mounting bracket (6) is fixedly provided on the rotating plate (5). A through hole (21) for aluminum alloy tubes to pass through is horizontally provided on the mounting bracket (6). The center of the through hole (21) is on the same horizontal line as the rotation center and the clamping center. Two clamping blocks (8) are provided on one end face of the mounting bracket (6) facing another central clamping mechanism. The two clamping blocks (8) are symmetrically arranged on both sides of the through hole (21). The two clamping blocks (8) are slidably installed on the mounting bracket (6). The sliding direction of the two clamping blocks (8) is parallel to the line connecting the two clamping blocks (8). The two clamping blocks (8) are driven to slide towards or away from each other by a synchronization mechanism. A circular arc groove (22) is provided on each of the two opposite surfaces of the two clamping blocks (8). The center between the two circular arc grooves (22) is the clamping center.

3. The welding device for butt welding of aluminum alloy pipes as described in claim 2, characterized in that, The synchronization mechanism includes a first motor (9) mounted on a mounting frame (6), a worm gear (10) mounted on the output end of the first motor (9), a rotating double-threaded screw mounted on the mounting frame (6), two threads on the double-threaded screw respectively matching and passing through two clamping blocks (8), the length direction of the double-threaded screw is parallel to the sliding direction of the clamping blocks (8), a worm wheel (11) is fixedly mounted on the double-threaded screw, and the worm wheel (11) meshes with the worm gear (10).

4. The welding device for butt welding of aluminum alloy pipes as described in claim 2, characterized in that, The mounting bracket (6) has slide rails (7) on both sides of the through hole (21) on one end of the end facing the other central clamping mechanism. The length direction of the slide rails (7) is parallel to the sliding direction of the clamping block (8). The clamping block (8) has a sliding groove that matches the slide rail (7). The two clamping blocks (8) slide on the two slide rails (7) respectively.

5. The welding device for butt welding of aluminum alloy pipes as described in claim 2, characterized in that, The rotating plate (5) is rotatably mounted on the bracket (1) via a rotating shaft (20). The rotating shaft (20) is fixedly connected to the rotating plate (5) and rotatably connected to the bracket (1). The through hole (21) passes through the rotating plate (5) and the rotating shaft (20). A first synchronous wheel (12) is fixedly sleeved on the rotating shaft (20). A rotating rod (15) is mounted on the bracket (1). The two ends of the rotating rod (15) are respectively provided with second synchronous wheels (13) corresponding to the two first synchronous wheels (12). The first synchronous wheel (12) and the corresponding second synchronous wheel (13) are connected by a first synchronous belt (14). A second motor is provided on the bracket (1). A third synchronous wheel (17) is installed at the output end of the second motor. A fourth synchronous wheel (18) is fixedly mounted on the rotating rod (15). The third synchronous wheel (17) and the fourth synchronous wheel (18) are connected by a second synchronous belt (19).

6. The welding device for butt welding of aluminum alloy pipes as described in claim 1, characterized in that, The lifting mechanism includes a cylinder (3) vertically mounted on a bracket (1), the telescopic rod of the cylinder (3) extends downward and is fixedly connected to a mounting plate (4), and the welding head (2) is mounted on the mounting plate (4).

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