An automatic welding apparatus for aluminum pipes

Abstract

The utility model relates to aluminium pipe welding technical field, especially a kind of aluminium pipe automatic welding equipment, including rack, U-shaped plate, support B and drive assembly D, support A is set on rack, movable plate is set on support A, and welding torch is set on movable plate, drive assembly A that drives movable plate to lift is set on rack;U-shaped plate is rotationally arranged on support A, two baffles and a set of counterweight wheel are set on U-shaped plate;Support B includes two groups and is located at the both sides of support A respectively, centering clamping mechanism is set on support B, centering clamping mechanism is clamped to workpiece and drives workpiece rotation in working condition;Drive assembly D includes two groups and is all set on rack, and drive assembly D drives corresponding side support B to move away or approach support A in working condition.The utility model can quickly make the near end of two aluminium round pipes coaxial abutting, convenient welding, and simplify equipment training and welding operation steps.

Description

Technical Field

[0001] This utility model relates to the field of aluminum tube welding technology, and in particular to an automatic aluminum tube welding device. Background Technology

[0002] When aluminum round tubes are butted or connected to rotary joints, welding is usually performed by manual or mechanical equipment for automatic centering and fixing.

[0003] Manual alignment is difficult and prone to significant deviations. While mechanical alignment is relatively simpler, the relative positions of the two workpieces at the welding point and the welding torch head require complex equipment adjustments, making the operation very cumbersome. To improve welding efficiency and simplify the equipment adjustment process, it is necessary to invent a welding device capable of automatically coaxially aligning aluminum tubes and connectors, ensuring that the welding point is directly below the welding torch. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing an automatic aluminum tube welding device.

[0005] The technical solution of this utility model is: an automatic aluminum tube welding equipment, including a frame, a support A centrally located on the frame, a movable plate on the support A, a welding gun on the movable plate, and a drive assembly A on the frame to drive the movable plate to rise or fall. The U-shaped plate is rotatably mounted on the support A. A baffle is vertically mounted on each of the two horizontal arms of the U-shaped plate, and a counterweight wheel is mounted on the side of the U-shaped plate away from the baffle. When the movable plate moves upward, it pushes the U-shaped plate. When the U-shaped plate is in a horizontal state, the two baffles are symmetrical about the welding head of the welding gun. When the movable plate moves downward, the two baffles pass through the support A. Support B includes two sets located on both sides of support A. A centering clamping mechanism is provided on support B. In the working state, the centering clamping mechanism centers and clamps the workpiece and drives the workpiece to rotate. And drive assembly D, which includes two sets and is mounted on the frame. When in operation, drive assembly D drives the corresponding side bracket B away from or closer to bracket A.

[0006] Preferably, when the U-shaped plate is in a horizontal state, the movable plate abuts against the arc surface of the counterweight wheel, and when the U-shaped plate is in a vertical state, the movable plate abuts against the side of the horizontal arm of the U-shaped plate away from the baffle.

[0007] Preferably, the centering clamping mechanism includes a lower clamping plate, a support roller, an upper clamping plate, a pressure roller, a drive assembly B, a transmission assembly, and a drive assembly C. The lower clamping plate is slidably mounted on the support B. The support roller includes two rollers that are parallel to each other and rotatably mounted on the lower clamping plate. The upper clamping plate is slidably mounted on the support B. The pressure roller includes two rollers that are parallel to each other and rotatably mounted at the lower end of the upper clamping plate. The two pressure rollers are located directly above the support rollers on their respective sides. The drive assembly B is mounted on the upper clamping plate and drives the pressure rollers to rotate. The transmission assembly is mounted on the support B and drives the lower clamping plate and the upper clamping plate to move closer or further apart synchronously.

[0008] Preferably, a pressure detector B is provided on the bottom surface of the upper clamping plate, and an ear plate is provided at the detection end of the pressure detector B, with the pressure roller rotatably connected to the ear plate.

[0009] Preferably, the transmission assembly includes a rack and a gear, with two racks. A limiting groove is provided on the bracket B, and both the rack and the gear are located in the limiting groove. The rack is slidably connected to the inner wall of the limiting groove, and the gear is rotatably connected to the bracket B. The gear is located between the two racks and meshes with the racks on both sides. The lower clamping plate and the upper clamping plate are respectively connected to one of the racks, and the rack and the gear always remain in a meshed state during the sliding process of the lower clamping plate and the upper clamping plate.

[0010] Preferably, a guide groove is provided on the frame, a guide rail is provided in the guide groove, the upper end surface of the guide rail is an arc surface, a slide block is provided on the guide rail and slide block is connected to the support B.

[0011] Preferably, a slide groove is provided on the slide block, a slider is provided in the slide groove and slidably connected thereto, and a pressure detector A is provided in the slide groove, with the detection end of the pressure detector A connected to the side of the slider away from the support A.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects: By setting a sliding movable plate on support A, the welding torch is placed on the movable plate. Support A is also equipped with a U-shaped plate, baffle, and counterweight wheel controlled by the movable plate to rotate. When the welding torch is in a high position, the baffle positions the welding part of the aluminum tube (or rotary joint, etc.) on the corresponding side. When the movable plate moves downward, the baffle releases the obstruction limit of the workpieces on both sides. The sliding of the slide causes support B to move, so that the workpieces on both sides move closer synchronously, ensuring that the welding part of the workpiece is directly below the welding head of the welding torch. No complicated adjustment is required, and the welding accuracy is high. By setting two sets of support rollers and pressure rollers that move closer synchronously, it is easy to perform coaxial centering operation on both sides of the workpieces, ensuring that the two workpieces always remain coaxial during welding. At the same time, by setting a drive component B that drives one of the pressure rollers to rotate, it is easy to drive the two workpieces to rotate synchronously, so as to complete high-precision welding on the circumference of the two workpieces. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the connection structure of the various components on bracket A; Figure 3 A schematic diagram of the connection structure of each component on the U-shaped plate; Figure 4 This is a schematic diagram of the connection structure between the slide block and the slider; Figure 5 This is a schematic diagram of the connection structure of the various components on bracket B.

[0014] Reference numerals: 1. Frame; 101. Guide rail; 2. Support A; 201. Rotating shaft; 3. Movable plate; 4. Welding torch; 5. Drive assembly A; 6. U-shaped plate; 7. Baffle; 8. Counterweight wheel; 9. Slide; 91. Slide groove; 10. Slider; 11. Pressure detector A; 12. Support B; 13. Lower clamping plate; 14. Support roller; 15. Upper clamping plate; 16. Pressure detector B; 17. Ear plate; 18. Pressure roller; 19. Drive assembly B; 20. Transmission assembly; 21. Drive assembly C; 22. Drive assembly D. Detailed Implementation

[0015] Example 1, as Figures 1-5As shown, this utility model proposes an automatic aluminum tube welding device, including a frame 1, a U-shaped plate 6, a support B12, and a drive assembly D22. A support A2 is centrally located on the frame 1, a movable plate 3 is mounted on the support A2, and a welding torch 4 is mounted on the movable plate 3. A drive assembly A5 is mounted on the frame 1 to drive the movable plate 3 to rise or fall. The drive assembly A5 includes, but is not limited to, a servo electric cylinder A, the body of which is mounted on the support A2, and its output end is connected to the movable plate 3. The U-shaped plate 6 is rotatably mounted on the support A2. A baffle 7 is vertically mounted on each of the two horizontal arms of the U-shaped plate 6, and a counterweight wheel 8 is mounted on the side of the U-shaped plate 6 away from the baffle 7. When the movable plate 3 moves upward, it pushes against the U-shaped plate 6. When the U-shaped plate 6 is horizontal, the two baffles 7 are symmetrical about the welding head of the welding torch 4. When the movable plate 3 moves downward, the two baffles pass through the support A2. In a horizontal state, the movable plate 3 abuts against the arc surface of the counterweight wheel 8. In a vertical state, the movable plate 3 abuts against the side of the horizontal arm of the U-shaped plate 6 away from the baffle 7. The support B12 includes two sets located on both sides of the support A2. A centering clamping mechanism is provided on the support B12. In operation, the centering clamping mechanism centers and clamps the workpiece and drives its rotation. The centering clamping mechanism includes a lower clamping plate 13, a support roller 14, an upper clamping plate 15, a pressure roller 18, a drive assembly B19, a transmission assembly 20, and a drive assembly C21. The lower clamping plate 13 is slidably mounted on the support B12. The support roller 14 includes two rollers that are parallel and rotatably mounted on the lower clamping plate 13. The upper clamping plate 15 is slidably mounted on the support B12. The pressure roller 18 includes two rollers that are parallel and rotatably mounted at the lower end of the upper clamping plate 15. The two pressure rollers 18 are located directly above the corresponding support rollers 14. The drive assembly B19 includes, but is not limited to, a servo motor. The servo motor body is mounted on the upper clamping plate 15, and the output end of the servo motor is connected to the central shaft of one of the pressure rollers 18. The servo motor drives the pressure roller 18 to rotate during operation. The transmission assembly 20 is mounted on the bracket B12 and drives the lower clamping plate 13 and the upper clamping plate 15. The transmission assembly 20 includes two racks 2001 and two gears 2002. The bracket B12 is provided with a limiting groove, and both the racks 2001 and the gears 2002 are located in the limiting groove. The racks 2001 are slidably connected to the inner wall of the limiting groove, and the gears 2002 are rotatably connected to the bracket B12. The gears 2002 are located between the two racks 2001 and mesh with the racks 2001 on both sides. The lower clamping plate 13 and the upper clamping plate 15 are respectively connected to one of the racks 2001, and the racks 2001 and the gears 2002 remain meshed during the sliding process of the lower clamping plate 13 and the upper clamping plate 15. The drive component C21 includes, but is not limited to, the servo electric cylinder B. The body of the servo electric cylinder B is mounted on the bracket B12. The output end of the servo electric cylinder B is connected to the upper clamping plate 15. When the servo electric cylinder B is in operation, it drives the upper clamping plate 15 to rise or fall and drives the lower clamping plate 13 to rise or fall synchronously through the transmission component 20.The drive assembly D22 includes two linear modules, the bodies of which are mounted on the frame 1, and the output ends of the two linear modules are connected to the brackets B12 on the corresponding sides.

[0016] It should be noted that the outer diameters of the support roller 14 and the pressure roller 18 are the same. This technical solution also includes a control panel, which uses a combination of HMI (Human Machine Interface) and PLC (Programmable Logic Controller). The HMI provides users with an intuitive and user-friendly interface, allowing them to easily issue various commands by touching the screen.

[0017] In this embodiment, initially, the movable plate 3 is in a high position, the U-shaped plate 6 is horizontal, and the baffle 7 is symmetrical about the center of the welding head. The aluminum tube is placed on the two support rollers 14, and its welding part is kept at an appropriate distance from the baffle 7. The welding program is started, and the servo electric cylinder B drives the upper clamping plate 15 downward. Under the meshing transmission of the gear 2002 and the rack 2001, the lower clamping plate 13 moves upward synchronously and cooperates with the pressure roller 18 to clamp the workpiece. The two ends of the workpiece are coaxial in the clamped state. Then, the linear module drives the workpiece to move and the welding part of the workpiece is clamped. After the workpieces on both sides come into contact with the baffle 7 on the corresponding side, the movable plate 3 moves down to the first preparatory station and pushes the U-shaped plate 6 to flip, so that the baffle 7 is separated from the workpiece. Then, the two linear modules drive the two workpieces to approach each other synchronously until they come into contact. The movable plate 3 continues to move down until the welding head contacts the welding part of the workpiece and begins welding. During the welding process, the workpiece is driven to rotate around its axis by the servo motor, so as to achieve 360-degree welding of the aluminum round tube without dead angles. The entire operation only requires placing the workpiece on the two support rollers 14, which is time-saving and efficient.

[0018] Example 2, as Figure 1 , Figure 4 and Figure 5 As shown, the automatic aluminum tube welding equipment proposed in this utility model, compared with Embodiment 1, has a guide groove on the frame 1, a guide rail 101 inside the guide groove, the upper end surface of the guide rail 101 being an arc surface, a slide block 9 sliding along its axial direction on the guide rail 101, a bracket B12 connected to the slide block 9, a slide groove 91 on the slide block 9, a slider 10 slidably connected to the slide block 10 inside the slide groove 91, and a pressure detector A11 inside the slide groove 91, the detection end of the pressure detector A11 being connected to the side of the slider 10 away from the bracket A2. A pressure detector B16 is installed on the bottom surface of the upper clamping plate 15, the detection end of the pressure detector B16 is provided with an ear plate 17, and a pressure roller 18 is rotatably connected to the ear plate 17. A controller is also installed on the frame 1, the controller being a PLC controller, both pressure detectors A11 and B16 being pressure sensors, and the pressure sensors, servo electric cylinder A, welding torch 4, servo motor, and servo electric cylinder B are all electrically connected to the PLC controller.

[0019] In this embodiment, after the support roller 14 lifts the workpiece, the pressure roller 18 clamps the workpiece. The clamping state is determined by the pressure signal obtained by the pressure detector B16. After the workpiece is clamped by the support roller 14 and the pressure roller 18, the workpiece is moved by the transverse support B12. When the workpiece continues to be pressed, when the workpiece touches the nearby baffle 7, the slider 10 will generate a pressure signal to the pressure detector A11. At this time, the system determines that the workpiece has moved into position for the first time. After both sets of workpieces have moved into position, the movable plate 3 moves down to push the U-shaped plate 6 to flip and make the baffle 7 disengage from the workpiece. At this time, the two sets of linear modules approach synchronously to ensure that the welding part of the two workpieces is directly below the welding head after docking.

[0020] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automatic aluminum tube welding device, characterized in that, include: A frame (1) is provided with a support A (2) in the center of the frame (1), a movable plate (3) is provided on the support A (2), a welding torch (4) is provided on the movable plate (3), and a drive assembly A (5) is provided on the frame (1) to drive the movable plate (3) to rise or fall. U-shaped plate (6), U-shaped plate (6) is rotatably mounted on support A (2), and a baffle (7) is vertically mounted on each of the two horizontal arms of U-shaped plate (6), and a counterweight wheel (8) is mounted on the side of U-shaped plate (6) away from the baffle (7). When the movable plate (3) moves upward, it pushes the U-shaped plate (6), and when U-shaped plate (6) is in a horizontal state, the two baffles (7) are symmetrical about the welding head of the welding gun (4). When the movable plate (3) moves downward, the two baffles pass through support A (2). Support B (12) includes two sets located on both sides of support A (2). A centering clamping mechanism is provided on support B (12). The centering clamping mechanism centers and clamps the workpiece and drives the workpiece to rotate in the working state. And drive assembly D (22), which includes two sets and is set on the frame (1). When in operation, drive assembly D (22) drives the corresponding side bracket B (12) away from or close to bracket A (2).

2. The automatic aluminum tube welding equipment according to claim 1, characterized in that, When the U-shaped plate (6) is in a horizontal state, the movable plate (3) abuts against the arc surface of the counterweight wheel (8), and when the U-shaped plate (6) is in a vertical state, the movable plate (3) abuts against the side of the horizontal arm of the U-shaped plate (6) away from the baffle (7).

3. The automatic aluminum tube welding equipment according to claim 1, characterized in that, The centering clamping mechanism includes a lower clamping plate (13), a support roller (14), an upper clamping plate (15), a pressure roller (18), a drive assembly B (19), a transmission assembly (20), and a drive assembly C (21). The lower clamping plate (13) is slidably mounted on the bracket B (12). The support roller (14) includes two rollers that are parallel and rotatably mounted on the lower clamping plate (13). The upper clamping plate (15) is slidably mounted on the bracket B (12). The pressure roller (18) includes two rollers that are parallel and rotatably mounted at the lower end of the upper clamping plate (15). The two pressure rollers (18) are located directly above the support rollers (14) on the corresponding sides. Drive assembly B (19) is set on the upper clamping plate (15) and drives the pressure roller (18) to rotate; transmission assembly (20) is set on the bracket B (12) and drives the lower clamping plate (13) and the upper clamping plate (15); drive assembly C (21) is set on the bracket B (12) and drives the lower clamping plate (13) and the upper clamping plate (15) to move closer or further away synchronously.

4. The automatic aluminum tube welding equipment according to claim 3, characterized in that, Pressure detector B (16) is provided on the bottom surface of the upper clamping plate (15). The detection end of pressure detector B (16) is provided with ear plate (17). Pressure roller (18) is rotatably connected to ear plate (17).

5. The automatic aluminum tube welding equipment according to claim 1, characterized in that, The transmission assembly (20) includes a rack (2001) and a gear (2002). There are two racks (2001). A limiting groove is provided on the bracket B (12). Both the rack (2001) and the gear (2002) are located in the limiting groove. The rack (2001) is slidably connected to the inner wall of the limiting groove. The gear (2002) is rotatably connected to the bracket B (12). The gear (2002) is located between the two racks (2001) and meshes with the racks (2001) on both sides. The lower clamping plate (13) and the upper clamping plate (15) are respectively connected to one of the racks (2001). During the sliding process of the lower clamping plate (13) and the upper clamping plate (15), the rack (2001) and the gear (2002) always remain in a meshing state.

6. The automatic aluminum tube welding equipment according to claim 1, characterized in that, A guide groove is provided on the frame (1), and a guide rail (101) is provided in the guide groove. The upper end surface of the guide rail (101) is an arc surface. A slide (9) that slides along its axis is provided on the guide rail (101). The bracket B (12) is connected to the slide (9).

7. The automatic aluminum tube welding equipment according to claim 6, characterized in that, A slide groove (91) is provided on the slide block (9), and a slider (10) is provided in the slide groove (91) and slidably connected thereto. A pressure detector A (11) is provided in the slide groove (91), and the detection end of the pressure detector A (11) is connected to the side of the slider (10) away from the bracket A (2).

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