Later-stage plasma welding machine tool for high-end aluminum alloy tools

Abstract

The invention relates to the technical field of plasma arc welding, in particular to a high-end aluminum alloy tool later-stage plasma welding machine tool which comprises a frame body, a concentric-square-shaped limiting sliding rail is fixedly connected with the frame body, a plurality of sets of positioning mechanisms are arranged on the outer wall of a conveying belt, and two symmetrically-distributed height positioning plates are fixedly connected to the interior of the frame body; two side limiting plates are arranged on the upper left portion of the height positioning plate, and plasma welding guns are installed on the two universal mechanical arms. Through the synergistic effect of a second bevel push block and a discharging push rod, a stop rod slides along a first limiting sliding rail, a lowermost supporting column body is released, meanwhile, a separation plate bears stacked workpieces on the upper portion, a first sliding rod slides along the concentric-square-shaped limiting sliding rail, an inner push rod drives an inner clamping plate to clamp the workpieces through a rack and a gear, and the workpieces are clamped through a second clamping plate; the supporting column body automatically pushes the cross rod body to slide out, so that the two ends of the cross rod body are bent inwards, precise assembly is completed, the consistency of welding positions is ensured, and the production efficiency and the welding precision are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of plasma arc welding technology, and in particular to a high-end aluminum alloy tool post-processing plasma welding machine. Background Technology

[0002] In modern architecture and spatial design, as we turn our attention to the forefront of materials science, aluminum alloy, as an advanced non-ferrous metal, is redefining the benchmark for high-end fencing with its superior comprehensive performance. Choosing aluminum alloy for fencing is not only about selecting a lightweight, highly durable, and maintenance-free practical solution, but also about choosing a future-oriented, technologically advanced material language that blends science and art, adding a modern and elegant touch to building facades and spaces. Fences are widely used in residential balconies, highway medians, commercial area fencing, and public space protection. Their core function is to provide safety protection and structural support. A typical hardware fence consists of support posts and crossbars, fixed together by welding. The support posts are usually hollow round tubes, installed vertically on the ground, bearing the overall load and stability requirements of the fence. The crossbars are generally flat steel or square tubes, with round or semi-circular grooves in the middle to surround the support posts, enhancing the overall structural bending rigidity and impact resistance.

[0003] In the existing welding production process of metal crossbars and support columns, manual or semi-automatic methods are usually used for material loading, assembly, and welding. In the traditional method, workers need to manually wrap the crossbar around the outside of the support column while ensuring that the two are in close contact, and finally fix it with welding equipment. This method is not only inefficient, but also prone to inaccurate welding position due to human error, affecting product consistency. Some automated welding equipment has a complex structure, and most can only complete a single welding action, and cannot realize automatic material loading, precise positioning, and synchronous assembly and welding of support columns and crossbars. In addition, existing technologies mostly use external clamps to hold support columns, which can easily damage the workpiece surface. Therefore, a high-end aluminum alloy fixture post-processing plasma welding machine tool is proposed to solve the above-mentioned problems. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art by proposing a high-end aluminum alloy tool post-processing plasma welding machine tool.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-end aluminum alloy tool post-processing plasma welding machine tool includes a frame, with two drive wheels rotatably connected inside the frame. A conveyor belt is fitted on the outer wall of the two drive wheels, and a loop-shaped limit slide rail is provided on the outer side of the conveyor belt. The loop-shaped limit slide rail is fixedly connected to the frame. Several sets of positioning mechanisms are provided on the outer wall of the conveyor belt. Two symmetrically distributed height positioning plates are fixedly connected inside the frame. Two side limit plates are provided on the upper left of the height positioning plates. Universal robotic arms are symmetrically distributed with the two side limit plates as the axis of symmetry. Plasma welding guns are installed on both universal robotic arms. Two height positioning plates are equipped with crossbar storage compartments, and several crossbar bodies are placed inside the crossbar storage compartments. Two fixed frames are fixed to the side of the frame away from the two side limit plates. The ends of the two fixed frames are fixed to the same support column storage compartment, and several support column bodies are placed inside the support column storage compartment. The positioning mechanism includes a circular base, an inner cylinder fixed to the top of the circular base, a slide rod slidably connected inside the circular base, a rack fixed to the end of the slide rod, a gear meshing on the outer wall of the rack, the gear being rotatably connected to the circular base, a threaded rod fixed to the top of the gear, an inner push rod threadedly connected to the outer wall of the threaded rod, the outer wall of the inner push rod being slidably connected to the inner cylinder through two slide rods 3, and the end of the slide rod away from the rack being slidably connected to the loop-shaped limiting slide rail.

[0006] Preferably, the top of the inner cylinder is equipped with four sets of clamping mechanisms arranged in a circumferential array. Each clamping mechanism includes an inner clamping plate, the bottom of which is fixedly connected to a first shaft. The first shaft is rotatably connected to the inner cylinder, and a torsion spring is arranged around the outer wall of the first shaft. The two ends of the torsion spring are fixedly connected to the inner clamping plate and the inner cylinder, respectively.

[0007] Preferably, the internal part storage compartment of the support column is fixedly connected to two guide plates, and a feeding mechanism is symmetrically distributed above the two guide plates. Each feeding mechanism includes a separation plate, which is slidably connected to the part storage compartment of the support column. A slider is fixedly connected to the side of the separation plate away from the part storage compartment of the support column.

[0008] Preferably, a push block 1 is slidably connected to the outer wall of the slider 1, a connecting rod 1 is fixedly connected to the bottom of the push block 1, and the ends of the two connecting rods 1 away from the push block 1 are fixedly connected to the same inclined push block 2.

[0009] Preferably, the inclined push block 2 has a sliding rail frame inside, and an abutment plate is fixedly connected to the end of the sliding rail frame. The sliding rail frame is fixedly connected to the storage compartment of the support column, and two first springs are fixedly connected between the inclined push block 2 and the abutment plate.

[0010] Preferably, the inclined push block 2 has two symmetrically distributed limiting slide rails 1, and each limiting slide rail 1 is slidably connected to a slide rod 2. The ends of the slide rod 2 are fixedly connected to a stop rod, and the two stop rods are slidably connected to the same limiting slide rail 2. The limiting slide rail 2 is fixedly connected to the support column storage compartment.

[0011] Preferably, a feeding push rod is fixedly connected to the outer wall of each circular base.

[0012] Preferably, a motor is fixedly connected to the outer wall of the frame, and the output shaft of the motor is fixedly connected to one of the transmission wheels.

[0013] Compared with existing technologies, the advantages of this invention are as follows: This invention utilizes the coordinated action of the inclined push block two and the unloading push rod to slide the stop bar along the limiting slide rail one, releasing the lowermost support column body. Simultaneously, the separating plate supports the stacked workpieces above, preventing squeezing interference and ensuring stable sliding of individual pieces onto the inner cylinder, achieving precise feeding. The slide rod one slides along the loop-shaped limiting slide rail, and through rack and gear, the inner push rod drives the inner clamping plate to clamp the workpiece from the inside, avoiding surface damage caused by traditional external clamping and improving clamping stability. When the support column body moves to below the crossbar storage compartment, it automatically pushes the crossbar body out and bends its ends inward through the two limiting plates, completing precise assembly, ensuring consistent welding positions, and improving product quality. After welding, the circular base continues to move to the reset inclined surface of the loop-shaped limiting slide rail, causing the inner clamping plate to automatically release, allowing the workpiece to be smoothly unloaded without manual operation, achieving full-process automation. This solution achieves full-process automation from automatic feeding, precise assembly, stable clamping, efficient welding to automatic unloading, significantly improving production efficiency, welding accuracy, and product consistency, while reducing labor costs and the risk of workpiece damage. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the present invention. Figure 1 Schematic diagram of the structure at point A in the middle; Figure 3 This is a schematic diagram of the internal structure of the frame of the present invention; Figure 4 This is the present invention. Figure 3 Schematic diagram of the structure at point B; Figure 5 This is a schematic diagram of the bottom structure of the support column storage compartment of the present invention; Figure 6 This is a schematic diagram of the structure of the inclined push block of the present invention; Figure 7 This is a schematic diagram of the internal structure of the inner cylinder of the present invention; Figure 8 This is the present invention. Figure 7 Schematic diagram of the structure at point C; Figure 9 This is a schematic diagram of the structure of the spiral-shaped limiting slide rail of the present invention; Figure 10 This is the present invention. Figure 2Schematic diagram of the structure at point D.

[0015] In the diagram: 1. Frame; 2. Motor; 3. Universal robotic arm; 4. Plasma welding gun; 5. Side limit plates; 6. Height positioning plate; 7. Horizontal bar storage compartment; 8. Support column storage compartment; 9. Drive wheel; 10. Conveyor belt; 11. Push block one; 12. Connecting rod one; 13. Separation plate; 14. Circular base; 15. Recurved limit slide rail; 16. Fixing frame; 17. Slider one; 18. Guide plate; 19. First shaft; 20. 1. First spring; 21. Inclined push block two; 22. Slide rail frame; 23. Contact plate; 24. Slide rod two; 25. Stop bar; 26. Limit slide rail one; 27. Limit slide rail two; 28. Slide rod one; 29. ​​Gear; 30. Rack; 31. Threaded rod; 32. Inner cylinder; 33. Slide rod three; 34. Inner clamping plate; 35. Inner push rod; 36. Torsion spring; 37. Material discharge push rod; 100. Crossbar body; 200. Support column body. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element 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 invention.

[0018] Reference Figure 1 - Figure 10 A high-end aluminum alloy tool post-processing plasma welding machine tool includes a frame 1. Two transmission wheels 9 are rotatably connected inside the frame 1. A conveyor belt 10 is sleeved on the outer wall of the two transmission wheels 9. A loop-shaped limiting slide rail 15 is set on the outer side of the conveyor belt 10. The loop-shaped limiting slide rail 15 is fixedly connected to the frame 1. Several sets of positioning mechanisms are set on the outer wall of the conveyor belt 10. Two symmetrically distributed height positioning plates 6 are fixedly connected inside the frame 1. Two side limiting plates 5 are set on the upper left of the height positioning plates 6. Universal robotic arms 3 are symmetrically distributed with the two side limiting plates 5 as the axis of symmetry. Plasma welding guns 4 are installed on both universal robotic arms 3. A motor 2 is fixedly connected to the outer wall of the frame 1, and the output shaft of the motor 2 is fixedly connected to one of the transmission wheels 9. Two height positioning plates 6 are equipped with crossbar storage compartments 7, and several crossbar bodies 100 are placed inside the crossbar storage compartments 7. Two fixed frames 16 are fixed to the side of the frame 1 away from the two side limit plates 5. The ends of the two fixed frames 16 are fixed to the same support column storage compartment 8, and several support column bodies 200 are placed inside the support column storage compartment 8.

[0019] In this embodiment, the motor 2 first rotates intermittently, driving the two transmission wheels 9 and the conveyor belt 10 to move toward the direction of the universal robotic arm 3. Whenever the circular base 14 is at the designated position of the plasma welding gun 4, the motor 2 stops, so that the universal robotic arm 3 drives the plasma welding gun 4 to weld the crossbar body 100 and the support column body 200.

[0020] The support column storage compartment 8 has two guide plates 18 fixedly connected inside. Above the two guide plates 18, there are symmetrically distributed feeding mechanisms. Each feeding mechanism includes a separation plate 13. The separation plate 13 is slidably connected to the support column storage compartment 8. A slider 17 is fixedly connected to the side of the separation plate 13 away from the support column storage compartment 8.

[0021] The outer wall of slider 17 is slidably connected to push block 11. The bottom of push block 11 is fixedly connected to connecting rod 12. The ends of the two connecting rods 12 away from push block 11 are fixedly connected to the same inclined push block 21.

[0022] The inclined push block 21 has a sliding rail frame 22 inside, and a contact plate 23 is fixedly connected to the end of the sliding rail frame 22. The sliding rail frame 22 is fixedly connected to the support column storage compartment 8. Two first springs 20 are fixedly connected between the inclined push block 21 and the contact plate 23.

[0023] Two symmetrically distributed limiting slide rails 26 are provided on the inclined push block 21. Slide rods 24 are slidably connected in both limiting slide rails 26. Stop rods 25 are fixedly connected to the ends of slide rods 24. Both stop rods 25 are slidably connected to the same limiting slide rail 27. The limiting slide rail 27 is fixedly connected to the support column storage compartment 8.

[0024] Each circular base 14 has a feeding push rod 37 fixedly connected to its outer wall.

[0025] In this embodiment, the rightmost circular base 14 is aligned with the bottom of the support column storage compartment 8. The inclined push block 21 is pushed by the feeding push rod 37, and the two stop rods 25 slide along the limiting slide rail 26. The two stop rods 25 no longer block the bottom support column body 200. At the same time, in order to prevent the stacked support column bodies 200 above from squeezing the bottom support column body 200, the inclined push block 21 drives the connecting rod 12 and the push block 11 to move. The push block 11 drives the separation plate 13 to move closer through the slider 17. The two separation plates 13 support the upper support column body 200, so that the bottom support column body 200 can slide smoothly down the inclined surface of the support column storage compartment 8 and fit onto the inner cylinder 32 to complete the automatic feeding of the support column body 200. The diameter of the inner cylinder 32 is set to be smaller than that of the support column body 200.

[0026] The positioning mechanism includes a circular base 14, an inner cylinder 32 fixedly connected to the top of the circular base 14, a slide rod 28 slidably connected inside the circular base 14, a rack 30 fixedly connected to the end of the slide rod 28, a gear 29 meshing with the outer wall of the rack 30, the gear 29 being rotatably connected to the circular base 14, a threaded rod 31 fixedly connected to the top of the gear 29, an inner push rod 35 threadedly connected to the outer wall of the threaded rod 31, the outer wall of the inner push rod 35 being slidably connected to the inner cylinder 32 via two slide rods 33, and the end of the slide rod 28 away from the rack 30 being slidably connected to the loop-shaped limiting slide rail 15.

[0027] Four sets of clamping mechanisms arranged in a circular array are installed at the top of the inner cylinder 32. Each clamping mechanism includes an inner clamping plate 34. A first shaft 19 is fixedly connected to the bottom of the inner clamping plate 34. The first shaft 19 is rotatably connected to the inner cylinder 32. A torsion spring 36 is arranged around the outer wall of the first shaft 19. The two ends of the torsion spring 36 are fixedly connected to the inner clamping plate 34 and the inner cylinder 32, respectively. In this embodiment, when the circular base 14 rotates to the top with the conveyor belt 10, the bottom end of the support column body 200 automatically adheres to the circular base 14 due to gravity. At the same time, the slide rod 28 slides along the inclined surface of the loop-shaped limiting slide rail 15, and drives the gear 29 to rotate through the rack 30, so that the threaded rod 31 moves upward with the inner push rod 35 and the slide rod 33. The end of the inner push rod 35 abuts against the inner clamping plate 34, so that the inner clamping plate 34 is clamped inside the support column body 200.

[0028] When the circular base 14 moves with the support column body 200 to below the crossbar storage compartment 7, the lowest crossbar body 100 abuts against the support column body 200. The support column body 200 automatically slides out with the crossbar body 100 until both ends of the crossbar body 100 are limited and bent inward by the limit plates 5 on both sides, completing the assembly of the crossbar body 100 and the support column body 200. After welding by the plasma welding gun 4, the circular base 14 rotates to the bottom with the conveyor belt 10. The inclined surface of the loop limit slide rail 15 and the slide bar 28 reset, causing the rack 30 to drive the gear 29 to reverse. The threaded rod 31 retracts with the inner push rod 35, and the inner clamping plate 34 is no longer clamping the support column body 200, completing the automatic unloading.

[0029] The working principle and usage of this invention are explained in detail below: First, the motor 2 rotates intermittently, driving the two transmission wheels 9 and the conveyor belt 10 to move toward the direction of the universal robotic arm 3. Whenever the circular base 14 is located at the designated position of the plasma welding gun 4, the motor 2 stops, so that the universal robotic arm 3 drives the plasma welding gun 4 to weld the crossbar body 100 and the support column body 200.

[0030] At this time, the rightmost circular base 14 is aligned with the bottom of the support column storage compartment 8. The inclined push block 21 is pushed by the feeding push rod 37. The two stop rods 25 slide along the limit slide rail 26. The two stop rods 25 no longer block the bottom support column body 200. At the same time, in order to prevent the stacked support column bodies 200 above from squeezing the bottom support column body 200, the inclined push block 21 drives the connecting rod 12 and the push block 11 to move. The push block 11 drives the separation plate 13 to move closer through the slider 17. The two separation plates 13 support the upper support column body 200, so that the bottom support column body 200 can slide smoothly down the inclined surface of the support column storage compartment 8 and fit on the inner cylinder 32 to complete the automatic feeding of the support column body 200. The diameter of the inner cylinder 32 is set to be smaller than that of the support column body 200.

[0031] When the circular base 14 rotates to the top along with the conveyor belt 10, the bottom end of the support column body 200 automatically comes into close contact with the circular base 14 due to gravity. At the same time, the slide bar 28 slides along the inclined surface of the loop-shaped limit slide rail 15, and drives the gear 29 to rotate through the rack 30, so that the threaded rod 31 moves upward with the inner push rod 35 and the slide bar 33. The end of the inner push rod 35 abuts against the inner clamping plate 34, so that the inner clamping plate 34 is clamped inside the support column body 200.

[0032] When the circular base 14 moves with the support column body 200 to below the crossbar storage compartment 7, the lowest crossbar body 100 abuts against the support column body 200. The support column body 200 automatically slides out with the crossbar body 100 until both ends of the crossbar body 100 are limited and bent inward by the limit plates 5 on both sides, completing the assembly of the crossbar body 100 and the support column body 200. After welding by the plasma welding gun 4, the circular base 14 rotates to the bottom with the conveyor belt 10. The inclined surface of the loop limit slide rail 15 and the slide bar 28 reset, causing the rack 30 to drive the gear 29 to reverse. The threaded rod 31 retracts with the inner push rod 35, and the inner clamping plate 34 is no longer clamping the support column body 200, completing the automatic unloading.

[0033] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-end aluminum alloy fixture post-processing plasma welding machine tool, comprising a frame (1), characterized in that, The frame (1) has two drive wheels (9) inside, and a conveyor belt (10) is fitted on the outer wall of the two drive wheels (9). A loop-shaped limit slide rail (15) is provided on the outer side of the conveyor belt (10). The loop-shaped limit slide rail (15) is fixedly connected to the frame (1). Several sets of positioning mechanisms are provided on the outer wall of the conveyor belt (10). Two height positioning plates (6) are fixedly connected inside the frame (1). Two side limit plates (5) are provided on the upper left of the height positioning plate (6). Universal robotic arms (3) are symmetrically distributed with the two side limit plates (5) as the axis of symmetry. Plasma welding guns (4) are installed on both universal robotic arms (3). Two height positioning plates (6) are equipped with crossbar storage compartments (7), and several crossbar bodies (100) are placed inside the crossbar storage compartments (7). Two fixed frames (16) are fixed to the side of the frame (1) away from the two side limit plates (5). The ends of the two fixed frames (16) are fixed to the same support column storage compartment (8), and several support column bodies (200) are placed inside the support column storage compartment (8). The positioning mechanism includes a circular base (14), an inner cylinder (32) is fixedly connected to the top of the circular base (14), a slide rod (28) is slidably connected inside the circular base (14), a rack (30) is fixedly connected to the end of the slide rod (28), a gear (29) meshes with the outer wall of the rack (30), the gear (29) is rotatably connected to the circular base (14), a threaded rod (31) is fixedly connected to the top of the gear (29), an inner push rod (35) is threadedly connected to the outer wall of the threaded rod (31), the outer wall of the inner push rod (35) is slidably connected to the inner cylinder (32) through two slide rods (33), and the end of the slide rod (28) away from the rack (30) is slidably connected to the loop-shaped limiting slide rail (15).

2. The high-end aluminum alloy tooling post-processing plasma welding machine tool according to claim 1, characterized in that: The top of the inner cylinder (32) is equipped with four sets of clamping mechanisms arranged in a circular array. Each clamping mechanism includes an inner clamping plate (34). The bottom of the inner clamping plate (34) is fixedly connected to a first shaft (19). The first shaft (19) is rotatably connected to the inner cylinder (32). A torsion spring (36) is arranged around the outer wall of the first shaft (19). The two ends of the torsion spring (36) are fixedly connected to the inner clamping plate (34) and the inner cylinder (32) respectively.

3. The high-end aluminum alloy tooling post-processing plasma welding machine tool according to claim 1, characterized in that: The support column storage compartment (8) has two guide plates (18) fixedly connected inside. Above the two guide plates (18) are symmetrically distributed feeding mechanisms. Each feeding mechanism includes a separation plate (13). The separation plate (13) is slidably connected to the support column storage compartment (8). A slider (17) is fixedly connected to the side of the separation plate (13) away from the support column storage compartment (8).

4. The high-end aluminum alloy tooling post-processing plasma welding machine tool according to claim 3, characterized in that: The outer wall of slider 1 (17) is slidably connected to push block 1 (11), and the bottom of push block 1 (11) is fixedly connected to connecting rod 1 (12). The ends of the two connecting rods 1 (12) away from push block 1 (11) are fixedly connected to the same inclined push block 2 (21).

5. The high-end aluminum alloy tool post-processing plasma welding machine tool according to claim 4, characterized in that: The inclined push block 2 (21) has a sliding rail frame (22) inside, and a contact plate (23) is fixedly connected to the end of the sliding rail frame (22). The sliding rail frame (22) is fixedly connected to the support column storage compartment (8). Two first springs (20) are fixedly connected between the inclined push block 2 (21) and the contact plate (23).

6. The high-end aluminum alloy tooling post-processing plasma welding machine tool according to claim 5, characterized in that: Two symmetrically distributed limiting slide rails (26) are provided on the inclined push block 2 (21). Slide rods (24) are slidably connected in both limiting slide rails (26). Stop rods (25) are fixedly connected to the ends of slide rods (24). Both stop rods (25) are slidably connected to the same limiting slide rail 2 (27). The limiting slide rail 2 (27) is fixedly connected to the support column storage compartment (8).

7. The high-end aluminum alloy tooling post-processing plasma welding machine tool according to claim 1, characterized in that: Each circular base (14) has a feeding push rod (37) fixedly connected to its outer wall.

8. The high-end aluminum alloy tooling post-processing plasma welding machine tool according to claim 1, characterized in that: A motor (2) is fixedly connected to the outer wall of the frame (1), and the output shaft of the motor (2) is fixedly connected to one of the transmission wheels (9).

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