A flange plate welding device for flange pipe production

Abstract

The application relates to the field of flange plate welding equipment, in particular to a flange plate welding device for flange pipe production, which comprises a mounting frame, a rotating shaft and a welding assembly are arranged on the mounting frame, a driving source is arranged between one end of the rotating shaft and the mounting frame, a sleeve one and a sleeve two are arranged at the other end of the rotating shaft, and a fixing piece is arranged between the sleeve one and the rotating shaft. The utility model can accurately adjust the distance between the sleeve two and the sleeve one through a pushing assembly, thereby conveniently adjusting the relative position of the flange plate and the pipe fitting, and solves the problem that the traditional manual prying or knocking adjustment mode is prone to causing workpiece deformation. Meanwhile, the fixing assembly can stably clamp the flange plate and the pipe fitting, the rotating shaft is driven to rotate by cooperating with the driving source, the stable rotation of the workpiece during the welding process can be realized, the welding track is ensured to be uniform, the welding precision and stability are improved, and the welding defects caused by position deviation or shaking are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of flange welding equipment, specifically a flange welding device for flange pipe fitting production. Background Technology

[0002] In the fields of pipeline engineering and machinery manufacturing, flanges and pipe fittings are important connecting components, and their quality directly affects the sealing performance and structural stability of the entire pipeline system. Welding between flanges and pipe fittings is a critical process in flange and pipe fitting production; welding precision, stability, and efficiency have a significant impact on product quality and production costs.

[0003] Adjusting the distance between the flange and the pipe fitting relies on manual prying or hammering, which is not only time-consuming and labor-intensive, but may also cause workpiece deformation due to uneven force, making position adjustment inconvenient. When welding long pipe fittings, the part of the pipe fitting far from the fixed end is prone to sag due to its own weight, causing deflection deformation during the welding process, affecting the flatness and strength of the weld. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, such as inconvenience in position adjustment and insufficient support for long pipes, the present technology is proposed to address these issues.

[0005] This utility model discloses a flange welding device for flange pipe fitting production, including a mounting frame. The mounting frame is equipped with a rotating shaft and a welding assembly. A drive source is provided between one end of the rotating shaft and the mounting frame. The other end of the rotating shaft is equipped with a first sleeve and a second sleeve. A fixing component is provided between the first sleeve and the rotating shaft. The second sleeve is slidably disposed with the rotating shaft, and a pushing component is provided between the second sleeve and the rotating shaft. Both the first sleeve and the second sleeve are equipped with fixing components. A PLC controller is provided on the front side of the mounting frame.

[0006] Furthermore, the fixing component is configured as a fixing bolt, which passes through the sleeve and is threadedly connected to the rotating shaft. Multiple fixing bolts are provided and are evenly distributed.

[0007] Furthermore, the pushing component includes a threaded cylinder, which is fixedly mounted on the sleeve two. The threaded cylinder is inserted into the rotating shaft, and a screw is rotatably mounted on the rotating shaft. The screw is threadedly connected to the threaded cylinder.

[0008] Furthermore, the fixing component includes a mounting plate, and multiple mounting plates are provided. The multiple mounting plates are fixedly installed on the corresponding sleeve one and sleeve two. A fixing plate is provided on one side of the mounting plate, and a telescopic cylinder is provided between the fixing plate and the mounting plate.

[0009] Furthermore, a telescopic plate is provided below the rotating shaft, and limit plates are provided on both sides of the telescopic plate. The limit plates are installed on the mounting frame and are slidably disposed with the telescopic plate. A cover plate is provided above the two limit plates, and a support frame is provided at one end of the telescopic plate.

[0010] Furthermore, a lead screw is provided between the cover plate and the telescopic plate, the lead screw is rotatably mounted on the mounting frame, the lead screw is threadedly connected to the telescopic plate, and a directional wheel is provided at one end of the telescopic plate near the support frame.

[0011] Furthermore, the welding assembly includes a robotic arm, which is fixedly mounted on the mounting frame, and a welding torch is mounted on the robotic arm.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model can precisely adjust the distance between sleeve two and sleeve one by pushing the component, thereby facilitating the adjustment of the relative position of the flange and the pipe fitting, solving the problem that the traditional manual prying or knocking adjustment method is prone to workpiece deformation; at the same time, the fixing component can firmly clamp the flange and the pipe fitting, and with the drive source to drive the rotating shaft to rotate, the workpiece can be stably rotated during the welding process, ensuring uniform welding trajectory, improving welding accuracy and stability, and reducing welding defects caused by position deviation or shaking.

[0014] 2. When welding long pipe fittings, the support frame on the telescopic plate can effectively support the part of the pipe fitting away from the fixed end, preventing the pipe fitting from drooping and deforming due to its own weight; and the telescopic plate can slide along the limiting plate, and can flexibly adjust the support position according to the length of the pipe fitting, further ensuring the stability of the welding process and the welding quality. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the left side of this utility model;

[0018] Figure 3 This is a sectional view of the rotating shaft of this utility model;

[0019] Figure 4 This is a schematic diagram of the telescopic plate connection of this utility model.

[0020] In the diagram: 1. Mounting bracket; 2. Rotating shaft; 3. Sleeve 1; 4. Sleeve 2; 5. Fixing bolt; 6. Threaded cylinder; 7. Screw; 8. Mounting plate; 9. Telescopic cylinder; 10. Fixing plate; 11. Robotic arm; 12. Welding torch; 13. Telescopic plate; 14. Support frame; 15. Lead screw; 16. Limiting plate; 17. Cover plate; 18. PLC controller; 19. Directional wheel. Detailed Implementation

[0021] The following illustrations will reveal several embodiments of the present invention. For clarity, many physical details will be described in the following description. However, it should be understood that these physical details should not be used to limit the present invention. That is, in some embodiments of the present invention, these physical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the illustrations.

[0022] Please see Figure 1 , Figure 2 The flange welding device for flange pipe fitting production of this utility model includes a mounting frame 1, on which a rotating shaft 2 and a welding assembly are provided. The welding assembly includes a robotic arm 11, which is fixedly mounted on the mounting frame 1. A welding torch 12 is provided on the robotic arm 11. The robotic arm 11 adopts a six-axis linkage structure. A laser positioning sensor is integrated next to the welding torch 12 at its end. This sensor communicates with a PLC controller 18. Before welding starts, the laser positioning sensor scans the mating edge of the flange and pipe fitting, automatically identifies the weld position, and feeds the data back to the PLC controller 18, which controls the robotic arm 11 to fine-tune the angle and height of the welding torch 12 to ensure that the welding torch 12 is always aligned with the center of the weld.

[0023] See Figure 2 , Figure 4 As shown, a drive source is provided between one end of the rotating shaft 2 and the mounting frame 1. The drive source is a servo motor. A reducer is provided between the servo motor and the rotating shaft 2. A telescopic plate 13 is provided below the rotating shaft 2. Limiting plates 16 are provided on both sides of the telescopic plate 13. The limiting plates 16 are mounted on the mounting frame 1 and are slidably disposed with the telescopic plate 13. A cover plate 17 is provided above the two limiting plates 16. A support frame 14 is provided at one end of the telescopic plate 13. A lead screw 15 is provided between the cover plate 17 and the telescopic plate 13.

[0024] In this embodiment, the lead screw 15 is rotatably mounted on the mounting bracket 1. A geared motor is connected to the end of the lead screw 15. The motor is electrically connected to the PLC controller 18. The telescopic distance of the telescopic plate 13 can be directly controlled by the PLC, replacing the manual rotation of the lead screw 15 and improving the operating efficiency. The lead screw 15 is threadedly connected to the telescopic plate 13. A directional wheel 19 is provided at the end of the telescopic plate 13 near the support frame 14.

[0025] Combination Figure 1 , Figure 2 As shown, the other end of the rotating shaft 2 is provided with sleeve 3 and sleeve 4. The connecting surface of sleeve 3 and rotating shaft 2 and the sliding surface of sleeve 4 and rotating shaft 2 are coated with wear-resistant grease. The easily worn parts such as fixing bolts 5 and screws 7 are made of high-strength alloy material and the surface is treated with anti-corrosion to extend the service life. A fixing component is provided between sleeve 3 and rotating shaft 2. The fixing component is a fixing bolt 5. The fixing bolt 5 passes through sleeve 3 and is threadedly connected to rotating shaft 2.

[0026] Combination Figure 1 , Figure 2 , Figure 3 As shown, multiple fixing bolts 5 are provided and evenly distributed. Sleeve 2 4 is slidably disposed with shaft 2, and a pushing assembly is provided between sleeve 2 4 and shaft 2. The pushing assembly includes a threaded cylinder 6, which is fixedly installed on sleeve 2 4 and inserted into shaft 2. A screw 7 is rotatably installed on shaft 2 and threadedly connected to threaded cylinder 6. Fixing assemblies are provided on sleeve 1 3 and sleeve 2 4. The fixing assemblies include mounting plates 8, and multiple mounting plates 8 are provided.

[0027] In this embodiment, the connection between the mounting plate 8 and the sleeve 3 and sleeve 4 is made of detachable bolts, which makes it easy to adjust the number or position of the mounting plates 8 according to the workpiece size, and improves the compatibility of the device with multiple specifications of products. Multiple mounting plates 8 are fixedly installed on the corresponding sleeve 3 and sleeve 4. A fixing plate 10 is provided on one side of the mounting plate 8. The clamping surface of the fixing plate 10 is provided with an arc-shaped rubber pad. Its curvature can be preset according to the outer diameter of common flanges and pipes, which not only enhances the clamping friction to prevent the workpiece from sliding, but also avoids hard contact that could cause scratches on the surface of the flange or pipe.

[0028] In this embodiment, a telescopic cylinder 9 is provided between the fixed plate 10 and the mounting plate 8, and a PLC controller 18 is provided on the front side of the mounting frame 1. The PLC controller 18 is equipped with a touch screen display, which can display the operating status of the equipment in real time.

[0029] The implementation principle is as follows: Before the work starts, the equipment is initialized by the PLC controller 18 on the front side of the mounting frame 1 to ensure that each component is in the initial position. At this time, the sleeve 2 4 is in a position away from the sleeve 1 3 under the action of the pushing component, the telescopic cylinder 9 in the fixed component is in the retracted state, and the telescopic plate 13 is in the retracted state.

[0030] The flange to be welded is placed on sleeve 3 and fixed by the fixing components on sleeve 3: PLC controller 18 controls the telescopic cylinder 9 on mounting plate 8 to extend, driving fixing plate 10 to approach the flange and clamp it.

[0031] Align one end of the pipe fitting with the flange fixed on sleeve 3, and place the other end on sleeve 4. Fix it by the fixing component on sleeve 4. Similarly, PLC controller 18 controls the telescopic cylinder 9 of mounting plate 8 on sleeve 4 to extend, so that fixing plate 10 clamps the pipe fitting.

[0032] If the pipe is long, it needs to be supported: by rotating the screw 15, the telescopic plate 13 is moved and slid along the limiting plate 16. After adjusting to a suitable position, the support frame 14 at one end of the telescopic plate 13 is used to support the part of the pipe that is away from the fixed end. The cover plate 17 can cover and protect the screw 15.

[0033] Adjust the relative position of the flange and the pipe fitting by pushing the component: rotate the screw 7 on the rotating shaft 2, the screw 7 is threadedly engaged with the threaded sleeve 6 on the sleeve 2 4, and drive the sleeve 2 4 to slide along the rotating shaft 2 towards the sleeve 3 until the end of the pipe fitting is tightly fitted with the flange;

[0034] Start the welding program: PLC controller 18 controls the drive source to work, driving the rotating shaft 2 to rotate, and at the same time controls the robotic arm 11 in the welding assembly to adjust the position of the welding gun 12 to perform welding operations at the connection between the flange and the pipe fitting. The rotating shaft 2 continues to rotate to ensure uniform welding.

[0035] After welding is completed: the drive source stops working, the rotating shaft 2 stops rotating, the welding torch 12 resets, the telescopic cylinder 9 retracts, the fixing plate 10 releases its clamp on the flange fitting, the screw 7 is rotated in the opposite direction to make the sleeve 4 retract, and the welded flange fitting is removed. If the support frame 14 is used, the telescopic plate 13 is retracted.

[0036] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A flange welding device for flange pipe fitting production, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is provided with a rotating shaft (2) and a welding assembly. One end of the rotating shaft (2) is provided with a drive source between it and the mounting bracket (1). The other end of the rotating shaft (2) is provided with a sleeve (3) and a sleeve (4). A fixing component is provided between the sleeve (3) and the rotating shaft (2). The sleeve (4) is slidably disposed with respect to the rotating shaft (2). A pushing assembly is provided between the sleeve (4) and the rotating shaft (2). Fixing components are provided on both the sleeve (3) and the sleeve (4). A PLC controller (18) is provided on the front side of the mounting bracket (1).

2. The flange welding device for flange pipe fitting production according to claim 1, characterized in that: The fixing component is a fixing bolt (5), which passes through the sleeve (3) and is threaded to the rotating shaft (2). There are multiple fixing bolts (5), which are evenly distributed.

3. The flange welding device for flange pipe fitting production according to claim 1, characterized in that: The pushing assembly includes a threaded cylinder (6), which is fixedly installed on the sleeve (4). The threaded cylinder (6) is inserted into the rotating shaft (2). A screw (7) is rotatably installed on the rotating shaft (2), and the screw (7) is threadedly connected to the threaded cylinder (6).

4. The flange welding device for flange pipe fitting production according to claim 1, characterized in that: The fixing component includes a mounting plate (8), and multiple mounting plates (8) are provided. Multiple mounting plates (8) are fixedly installed on the corresponding sleeve one (3) and sleeve two (4). A fixing plate (10) is provided on one side of the mounting plate (8), and a telescopic cylinder (9) is provided between the fixing plate (10) and the mounting plate (8).

5. The flange welding device for flange pipe fitting production according to claim 1, characterized in that: A telescopic plate (13) is provided below the rotating shaft (2). Limiting plates (16) are provided on both sides of the telescopic plate (13). The limiting plates (16) are installed on the mounting frame (1). The limiting plates (16) and the telescopic plate (13) are slidably arranged. A cover plate (17) is provided above the two limiting plates (16). A support frame (14) is provided at one end of the telescopic plate (13).

6. The flange welding device for flange pipe fitting production according to claim 5, characterized in that: A lead screw (15) is provided between the cover plate (17) and the telescopic plate (13). The lead screw (15) is rotatably mounted on the mounting frame (1). The lead screw (15) is threadedly connected to the telescopic plate (13). A directional wheel (19) is provided at one end of the telescopic plate (13) near the support frame (14).

7. The flange welding device for flange pipe fitting production according to claim 1, characterized in that: The welding assembly includes a robotic arm (11), which is fixedly mounted on the mounting frame (1), and a welding torch (12) is provided on the robotic arm (11).

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