Automatic welding device for special-shaped parts

Abstract

The present application relates to the technical field of welding, and specifically discloses an automatic welding device for special-shaped parts, which comprises an operation table, an operation hole formed in the middle of the operation table, a first conveying device arranged at one end of the operation table, a second conveying device arranged at the other end of the operation table, a lower supporting device arranged directly below the operation table, an upper supporting device arranged directly above the operation table, a material guiding device arranged between the upper supporting device and the operation table, and a laser fusion welding device arranged at the side of the operation table; the conveying directions of the first conveying device and the second conveying device are the same; the first conveying device and the second conveying device are used for conveying plate parts with through-hole structures, and the material guiding device is used for conveying pipe parts. The automatic welding device for special-shaped parts can efficiently perform automatic welding operation of the plate parts and the pipe parts.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and more specifically, to an automated welding device for irregularly shaped parts. Background Technology

[0002] In industrial production, welding is an extremely common method of assembling parts. By heating, pressurizing, or both, with or without filler material, atomic bonding is achieved between workpieces, thus achieving a permanent connection. Currently, welding mainly employs two methods: manual welding and automated welding.

[0003] For regular structures, automated welding is the preferred choice due to its advantages of high efficiency, precision, and stable quality. It can precisely control parameters such as welding speed, voltage, and current, and can operate continuously, greatly improving production efficiency. However, the situation is more complex when dealing with irregular and complex structures. Taking the welding of pipes and plates as an example, some tank equipment often requires multiple inlet and outlet pipes, necessitating the direct welding of pipes to plates. These plates are usually curved, while the pipes themselves are cylindrical, requiring the welding machine to rotate around the pipe during welding. If manual operation is used, the pipe position must first be precisely fixed, a process that is extremely time-consuming and labor-intensive. Moreover, manual operation makes it difficult to guarantee high precision in pipe positioning and welding, easily leading to inconsistent welding quality and increased scrap rates. For example, in the manufacture of some chemical containers, manual welding of pipes and curved plates may lead to leakage risks due to positioning and welding accuracy issues. Therefore, to improve the efficiency and quality of welding irregularly shaped parts, there is an urgent need to design a more efficient welding device for irregularly shaped parts. Summary of the Invention

[0004] The purpose of this invention is to provide an automated welding device for irregularly shaped parts, which can efficiently perform automated welding operations on plates and pipes.

[0005] This invention is achieved through the following technical solution: The automated welding device for irregularly shaped parts of this invention includes an operating table, an operating hole in the middle of the operating table, a first conveying device at one end of the operating table, a second conveying device at the other end of the operating table, a lower support device directly below the operating table, an upper support device directly above the operating table, a material guiding device between the upper support device and the operating table, and a laser welding device on the side of the operating table; the first conveying device and the second conveying device have the same conveying direction; the first conveying device and the second conveying device are used to transport plates with through-hole structures, and the material guiding device is used to transport pipes.

[0006] Furthermore, conveyor belts are provided on both sides of the upper surface of the operating table, and the conveying direction of the conveyor belts is the same as that of the first conveying device; the conveyor belts do not coincide with the operating holes.

[0007] Furthermore, the lower support device includes a support plate disposed directly below the operating hole, a limiting rod vertically disposed and connected to the support plate, and a first driving device for driving the support plate to rise and fall; the upper surface of the support plate is shaped to fit against the lower side of the plate, and the limiting rod can be inserted into the through hole of the plate.

[0008] Furthermore, the first driving device includes a first telescopic cylinder vertically disposed below the limiting rod; the movable end of the first telescopic cylinder is rotatably connected to the lower end of the limiting rod.

[0009] Furthermore, it also includes a third driving device for driving the limit rod to rotate; the third driving device includes a fixed plate that is horizontally arranged and fixedly connected to the movable end side wall of the first telescopic cylinder, a motor fixedly arranged on the fixed plate, a driving wheel arranged on the output shaft of the motor, a driven wheel arranged on the lower end side wall of the limit rod, and a transmission belt for connecting the driving wheel and the driven wheel.

[0010] Furthermore, the upper support device includes a vertically arranged pressure rod, a pressure block rotatably disposed at the lower end of the pressure rod, and a second drive device for driving the pressure rod to rise and fall; the second drive device includes a second telescopic cylinder vertically disposed above the pressure rod, and a bracket for supporting the second telescopic cylinder; the movable end of the second telescopic cylinder is fixedly connected to the upper end of the pressure rod; the pressure block can be inserted into the pipe fitting.

[0011] Furthermore, the limiting rod has a hollow structure, and a light emitting device is provided inside the limiting rod; the light emitting device includes a first optical fiber disposed in the limiting rod and a light source disposed on the outer wall of the limiting rod; the lower end of the first optical fiber passes through the side wall of the limiting rod and is connected to the light source, and the light source is fixedly connected to the outer wall of the limiting rod; the pressure rod has a hollow structure, and a light receiving device is provided inside the pressure rod; the light receiving device includes a second optical fiber disposed in the pressure rod and an optical signal processing device; the pressure block has a clearance hole for light to pass through; the upper end of the second optical fiber passes through the side wall of the pressure rod and is connected to the optical signal processing device; the first optical fiber is disposed directly below the second optical fiber.

[0012] Furthermore, the material guiding device includes an inclined material guiding trough and a discharge port located on the lower side of the lower end of the material guiding trough; the pipe is placed vertically in the material guiding trough, and multiple pipes are arranged horizontally; the material guiding trough is a long strip structure and is fixedly mounted on the support; the discharge port is located directly below the second telescopic cylinder; both the pipe and the pressure block can pass through the discharge port; the outer diameter of the pipe is equal to the inner diameter of the discharge port.

[0013] Furthermore, the upper surface of the support plate is provided with an anti-slip layer.

[0014] Furthermore, the laser welding device is positioned towards the connection point between the plate and the pipe.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: In use, the automated welding device for irregularly shaped parts of the present invention places the plate on the first conveying device and transports it to the operating table. The pipe is placed in the guiding device and transported to the top of the operating table. When the plate and pipe are at the center of the operating table, the lower support device extends from the operating hole to support the plate, while the upper support device presses the pipe down onto the plate, aligning the pipe with the through hole on the plate. Then, the laser welding device is activated to weld the connection between the pipe and the plate. This allows for efficient automated welding and positioning of plates of a certain shape (including planar or curved surfaces) and pipes of a certain length, effectively improving the welding efficiency and accuracy of such irregularly shaped parts. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an automated welding device for irregularly shaped parts provided in an embodiment of the present invention. Figure 2 for Figure 1 A partial sectional view along the vertical direction; Figure 3 This is a schematic diagram of the two states of the automated welding device for irregularly shaped parts provided in an embodiment of the present invention; Figure 4 for Figure 3 Another structural diagram from a different perspective; Figure 5 for Figure 3 A partial sectional view along the vertical direction; Figure 6 This is a schematic diagram of the structure of the control panel provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the lower support device provided in an embodiment of the present invention; Figure 8 for Figure 7A partial sectional view along the vertical direction; Figure 9 This is a schematic diagram of the upper support device provided in an embodiment of the present invention; Figure 10 for Figure 9 A partial sectional view along the vertical direction.

[0017] Icons: 10-Operating table, 11-Operating hole, 12-First conveying device, 13-Second conveying device, 14-Laser welding device, 15-Conveyor belt, 16-Plate, 17-Through hole, 20-Lower support device, 21-Support plate, 22-Limit rod, 23-First drive device, 231-First telescopic cylinder, 24-Third drive device, 241-Fixed plate, 242-Motor, 243-Drive wheel, 244-Driven wheel, 245-Transmission belt, 25-Light emitting device, 25-First optical fiber, 252-Light source, 30-Upper support device, 31-Pressure rod, 32-Pressure block, 33-Second drive device, 331-Second telescopic cylinder, 34-Light receiving device, 341-Second optical fiber, 40-Guiding device, 41-Guiding trough, 42-Pipe, 43-Bracket. Detailed Implementation

[0018] Example The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 10 As shown, the automated welding device for irregularly shaped parts in this embodiment includes an operating table 10, an operating hole 11 in the middle of the operating table 10, a first conveying device 12 at one end of the operating table 10, a second conveying device 13 at the other end of the operating table 10, a lower support device 20 directly below the operating table 10, an upper support device 30 directly above the operating table 10, a material guiding device 40 between the upper support device 30 and the operating table 10, and a laser welding device 14 on the side of the operating table 10; the first conveying device 12 and the second conveying device 13 have the same conveying direction; the first conveying device 12 and the second conveying device 13 are used to transport plate parts 16 with through holes 17, and the material guiding device 40 is used to transport pipe parts 42. Specifically, during use, the plate 16 is placed on the first conveying device 12 and transported to the operating table 10 via the first conveying device 12. The pipe 42 is placed in the guiding device 40 and transported to the top of the operating table 10 via the guiding device 40. When the plate 16 and the pipe 42 are at the exact center of the operating table 10 (as shown in the attached diagram), Figure 3-5 As shown in the attached diagram, the lower support device 20 extends out of the operating hole 11 and supports the plate 16, while the upper support device 30 presses the pipe 42 downward so that the pipe 42 presses onto the plate 16, and the pipe 42 coincides with the through hole 17 on the plate 16 (as shown in the attached diagram). Figure 1-2(As shown), then the laser welding device 14 is activated to weld the connection between the pipe 42 and the plate 16. In this way, efficient automated welding and automated positioning can be achieved for plate 16 of a certain shape (including flat or curved surfaces) and pipe 42 of a certain length, which can effectively improve the welding efficiency and welding accuracy of such irregular parts.

[0019] In this embodiment, conveyor belts 15 are provided on both sides of the upper surface of the operating table 10. The conveying direction of the conveyor belts 15 is the same as that of the first conveying device 12; the conveyor belts 15 do not coincide with the operating holes 11. Specifically, when the plate 16 is moved onto the operating table 10, the plate 16 can continue to be moved by the conveyor belts 15 on the operating table 10, so that the plate 16 is in the center of the operating table 10, and the through hole 17 on the plate 16 is aligned with the pipe 42.

[0020] The lower support device 20 in this embodiment includes a support plate 21 located directly below the operating hole 11, a vertically arranged limiting rod 22 connected to the support plate 21, and a first driving device 23 for driving the support plate 21 to rise and fall. The upper surface of the support plate 21 is shaped to fit against the lower side of the plate 16, and the limiting rod 22 can be inserted into the through hole 17 of the plate 16. The first driving device 23 includes a first telescopic cylinder 231 vertically arranged below the limiting rod 22; the movable end of the first telescopic cylinder 231 is rotatably connected to the lower end of the limiting rod 22. Specifically, when the plate 16 moves directly above the operating hole 11, the first telescopic cylinder 231 pushes the support plate 21 upward. After the support plate 21 moves upward, it abuts against the lower surface of the plate 16 and pushes the plate 16 upward, causing the plate 16 to leave the operating table 10. The limiting rod 22 will also be inserted into the through hole 17 of the plate 16, thereby positioning the plate 16.

[0021] In this embodiment, a third driving device 24 for driving the limiting rod 22 to rotate is also included. The third driving device 24 includes a fixed plate 241 horizontally arranged and fixedly connected to the movable end sidewall of the first telescopic cylinder 231, a motor 242 fixedly mounted on the fixed plate 241, a driving wheel 243 mounted on the output shaft of the motor 242, a driven wheel 244 mounted on the lower end sidewall of the limiting rod 22, and a transmission belt 245 for connecting the driving wheel 243 and the driven wheel 244. Specifically, during the welding process, the connection between the plate 16 and the pipe 42 needs to be welded around one circle. Therefore, after the pipe 42 and the plate 16 are connected, the plate 16 and the pipe 42 need to be slowly rotated during the welding process to ensure full welding. During welding, the motor 242 drives the limiting rod 22 to rotate through the transmission belt 245, thereby driving the plate 16 to rotate through the support plate 21. The motor 242 and the limiting rod 22 can also be connected by gear transmission, sprocket and chain transmission, etc.

[0022] The upper support device 30 in this embodiment includes a vertically arranged pressure rod 31, a pressure block 32 rotatably disposed at the lower end of the pressure rod 31, and a second drive device 33 for driving the pressure rod 31 to rise and fall. The second drive device 33 includes a second telescopic cylinder 331 vertically disposed above the pressure rod 31, and a bracket 43 for supporting the second telescopic cylinder 331. The movable end of the second telescopic cylinder 331 is fixedly connected to the upper end of the pressure rod 31. The pressure block 32 can be inserted into the pipe fitting 42. Specifically, the second drive device 33 drives the pressure rod 31 to push the pipe fitting 42 from the guide device 40 onto the plate 16 and engage with the through hole 17. The plate 16 rotates under the drive of the third drive device 24, and the pipe fitting 42 rotates synchronously with the plate 16 and the pressure block 32 rotates synchronously with the pipe fitting 42.

[0023] In this embodiment, the limiting rod 22 has a hollow structure, and a light emitting device 25 is provided inside the limiting rod 22. The light emitting device 25 includes a first optical fiber 25 disposed in the limiting rod 22 and a light source 252 disposed on the outer wall of the limiting rod 22. The lower end of the first optical fiber 25 passes through the side wall of the limiting rod 22 and is connected to the light source 252. The light source 252 is fixedly connected to the outer wall of the limiting rod 22. The pressure rod 31 has a hollow structure, and a light receiving device 34 is provided inside the pressure rod 31. The light receiving device 34 includes a second optical fiber 341 disposed in the pressure rod 31 and an optical signal processing device. The pressure block 32 has a clearance hole for light to pass through. The upper end of the second optical fiber 341 passes through the side wall of the pressure rod 31 and is connected to the optical signal processing device. The first optical fiber 25 is disposed directly below the second optical fiber 341. Specifically, the first optical fiber 25 is mainly used to transmit the light signal generated by the light source 252 into the second optical fiber 341, and it is received by the optical signal processing device connected to the second optical fiber 341. Its function is that when the through hole 17 on the plate 16 moves directly above the first optical fiber 25, the optical signal emitted by the first optical fiber 25 can pass through the through hole 17 on the plate 16 and enter the second optical fiber 341. At this time, it can be determined that the position of the plate 16 is correct, and the first driving device 23 can be used to drive the support plate 21 to rise. That is, the first optical fiber 25 and the second optical fiber 341 play the role of determining the position of the plate 16. Since the limiting rod 22 will rotate, using optical fibers to transmit optical signals is more stable and reliable.

[0024] The material guiding device 40 in this embodiment includes an inclined material guiding trough 41 and a discharge port located on the lower side of the lower end of the material guiding trough 41. A pipe 42 is vertically placed in the material guiding trough 41, and multiple pipes 42 are arranged horizontally. The material guiding trough 41 is a long strip structure and is fixedly mounted on a support 43. The discharge port is located directly below the second telescopic cylinder 331. Both the pipe 42 and the pressure block 32 can pass through the discharge port. The outer diameter of the pipe 42 is equal to the inner diameter of the discharge port. Specifically, the pipe 42 moves slowly downwards in the material guiding trough 41 under its own weight, and the size of the discharge port is approximately equal to the outer wall of the pipe 42. That is, when the pipe 42 moves to the discharge port, there is a certain friction between the pipe 42 and the discharge port, preventing the pipe 42 from passing through the discharge port on its own. Therefore, the second telescopic cylinder 331 can be used to push the pressure rod 31 and the pressure block 32 to expel the pipe 42 from the discharge port.

[0025] In this embodiment, the upper surface of the support plate 21 is provided with an anti-slip layer. Specifically, this can increase the friction between the support plate 21 and the plate 16, and prevent slippage during rotation.

[0026] In this embodiment, the laser welding device 14 is positioned at the connection point between the plate 16 and the pipe 42.

[0027] In summary, the automated welding device for irregularly shaped parts in this embodiment involves placing the plate 16 on the first conveying device 12 and transporting it to the operating table 10. The pipe 42 is placed in the guiding device 40 and transported to the top of the operating table 10. When the plate 16 and pipe 42 are at the center of the operating table 10, the lower support device 20 extends from the operating hole 11 to support the plate 16, while the upper support device 30 presses the pipe 42 down onto the plate 16, aligning the pipe 42 with the through hole 17 on the plate 16. Then, the laser welding device 14 is activated to weld the connection between the pipe 42 and the plate 16. This allows for efficient automated welding and positioning of plates 16 of a certain shape (including planar or curved surfaces) and pipes 42 of a certain length, effectively improving the welding efficiency and precision of such irregularly shaped parts.

[0028] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An automated welding device for irregularly shaped parts, characterized in that: The device includes an operating table (10), an operating hole (11) in the middle of the operating table (10), a first conveying device (12) at one end of the operating table (10), a second conveying device (13) at the other end of the operating table (10), a lower support device (20) directly below the operating table (10), an upper support device (30) directly above the operating table (10), a material guiding device (40) between the upper support device (30) and the operating table (10), and a laser welding device (14) on the side of the operating table (10). The first conveying device (12) and the second conveying device (13) have the same conveying direction; the first conveying device (12) and the second conveying device (13) are used to transport plate parts (16) with through holes (17) structure, and the material guiding device (40) is used to transport pipe parts (42); The lower support device (20) includes a support plate (21) located directly below the operation hole (11), a limiting rod (22) vertically arranged and connected to the support plate (21), a first driving device (23) for driving the support plate (21) to rise and fall, and a third driving device (24) for driving the limiting rod (22) to rotate. The upper surface of the support plate (21) is shaped to fit against the lower side of the plate (16), and the limiting rod (22) can be inserted into the through hole (17) of the plate (16); The first driving device (23) includes a first telescopic cylinder (231) vertically disposed below the limiting rod (22); the movable end of the first telescopic cylinder (231) is rotatably connected to the lower end of the limiting rod (22); The third drive device (24) includes a fixed plate (241) that is horizontally arranged and fixedly connected to the movable end side wall of the first telescopic cylinder (231), a motor (242) fixedly mounted on the fixed plate (241), a drive wheel (243) mounted on the output shaft of the motor (242), a driven wheel (244) mounted on the lower end side wall of the limiting rod (22), and a transmission belt (245) for connecting the drive wheel (243) and the driven wheel (244); The upper support device (30) includes a vertically arranged pressure rod (31), a pressure block (32) rotatably disposed at the lower end of the pressure rod (31), and a second drive device (33) for driving the pressure rod (31) to rise and fall; The second driving device (33) includes a second telescopic cylinder (331) vertically disposed above the pressure rod (31), and a bracket (43) for supporting the second telescopic cylinder (331); the movable end of the second telescopic cylinder (331) is fixedly connected to the upper end of the pressure rod (31); the pressure block (32) can be inserted into the pipe fitting (42); The limiting rod (22) has a hollow structure, and a light emitting device (25) is provided inside the limiting rod (22); the light emitting device (25) includes a first optical fiber (251) disposed in the limiting rod (22) and a light source (252) disposed on the outer wall of the limiting rod (22); The lower end of the first optical fiber (251) passes through the side wall of the limiting rod (22) and is connected to the light source (252). The light source (252) is fixedly connected to the outer wall of the limiting rod (22). The pressure rod (31) has a hollow structure, and a light receiving device (34) is provided inside the pressure rod (31); the light receiving device (34) includes a second optical fiber (341) disposed in the pressure rod (31) and an optical signal processing device; the pressure block (32) has a clearance hole for light to pass through; The upper end of the second optical fiber (341) passes through the side wall of the pressure rod (31) and is connected to the optical signal processing device; The first optical fiber (251) is located directly below the second optical fiber (341).

2. The automated welding device for irregularly shaped parts according to claim 1, characterized in that: The upper surface of the operating table (10) is provided with conveyor belts (15) on both sides, and the conveying direction of the conveyor belts (15) is the same as the conveying direction of the first conveying device (12). The conveyor belt (15) does not coincide with the operating hole (11).

3. The automated welding device for irregularly shaped parts according to claim 1, characterized in that: The material guiding device (40) includes an inclined material guiding trough (41) and a discharge port located on the lower side of the lower end of the material guiding trough (41); The pipe fitting (42) is placed vertically in the guide trough (41), and multiple pipe fittings (42) are arranged in a horizontal direction. The guide trough (41) is a long strip structure and is fixedly mounted on the bracket (43). The discharge port is located directly below the second telescopic cylinder (331). Both the pipe fitting (42) and the pressure block (32) are configured to pass through the discharge port. The outer diameter of the pipe fitting (42) is equal to the inner diameter of the discharge port.

4. The automated welding device for irregularly shaped parts according to claim 1, characterized in that: The upper surface of the support plate (21) is provided with an anti-slip layer.

5. The automated welding device for irregularly shaped parts according to claim 1, characterized in that: The laser welding device (14) is positioned at the connection point between the plate (16) and the pipe (42).

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