A pressure vessel welding nozzle device

Abstract

The utility model discloses a pressure vessel welding pipe connecting device, including base, adjustable movable assembly is installed to the base bottom, the base top in line is provided with operation platform, the lift mechanism is installed between the base and operation platform, the operation platform top end surface sliding connection has the prop, operation platform and prop bottom end are provided with fixed structure, the prop top rotatory connection has the direction -adjusting column, the direction -adjusting column top is fixed with the cantilever, the bottom rotatory connection of cantilever tail end has the direction -adjusting beam, the prop and the direction -adjusting column between and cantilever and the direction -adjusting beam between all are provided with the steering mechanism, the direction -adjusting beam tail end is fixed with the pipeline fixer, realizes the accurate regulation of height through the lift mechanism, and the steering mechanism can be accurate control direction -adjusting column, cantilever and the direction -adjusting beam steering angle's coarse adjustment and fine adjustment, and the lateral sliding adjustment of combination prop, multidimensional collaborative action ensures pipe axis and design position height tallies.

Description

Technical Field

[0001] This utility model belongs to the technical field of welding auxiliary equipment, specifically relating to a pressure vessel welding pipe connection device. Background Technology

[0002] During the manufacturing process of pressure vessels, various sizes of nozzles (such as feed inlets, discharge outlets, instrument ports, etc.) need to be welded to the cylinder or head to realize the functions of medium transportation, measurement or control. The welding quality of these nozzles is directly related to the sealing performance, structural strength and operational safety of the pressure vessel.

[0003] Currently, the traditional welding methods commonly used in the industry mainly rely on manual operation: first, the position of the nozzle is determined by manual measurement and marking; then, the nozzle is initially placed in the predetermined position by manpower and fixed by temporary spot welding; finally, the formal welding is carried out. However, the manual measurement, marking, and placement process is prone to visual errors and operational deviations, which often lead to the misalignment of the nozzle axis and deviation of the center height from the design requirements, seriously affecting the quality of the final welded nozzle and the overall sealing performance of the pressure vessel. At the same time, the entire process involves repeated measurement, adjustment, temporary spot welding fixation, and re-measurement confirmation, which is cumbersome and time-consuming, with a high degree of reliance on manual labor, which seriously restricts the production cycle and makes it difficult to meet the efficiency requirements of modern mass production. Moreover, the fixing force provided by temporary spot welding is limited and uneven, and during the subsequent formal welding process, it is easily affected by its own weight or slight external forces, causing displacement or deformation. This instability not only increases the welding difficulty but also directly threatens the welding quality, which may lead to weld defects or rework.

[0004] Therefore, this utility model proposes a pressure vessel welding nozzle device, which can effectively solve the above-mentioned problems of poor positioning accuracy, low operating efficiency, and insufficient fixing stability, and improve the manufacturing process, product quality and production efficiency of pressure vessels. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure vessel welding and connecting device, comprising a base, an adjustable movable component installed at the bottom of the base, an operating platform coaxially arranged at the top of the base, a lifting mechanism installed between the base and the operating platform, a support column slidably connected to the top end face of the operating platform, a fixed structure provided at the bottom end of the operating platform and the support column, a steering column rotatably connected to the top of the support column, a cantilever fixed to the top of the steering column, a steering beam rotatably connected to the bottom of the tail end of the cantilever, a steering mechanism provided between the support column and the steering column and between the cantilever and the steering beam, and a pipe fixator fixed to the tail end of the steering beam.

[0006] As a preferred technical solution of this utility model, the adjustable moving component includes walking wheels and a fixed bracket. The walking wheels are symmetrically installed on both sides of the base, and the fixed bracket is symmetrically installed between the two walking wheels. The top of the fixed bracket is fixed to the base, and the bottom of the fixed bracket is threaded with a support foot.

[0007] As a preferred technical solution of this utility model, the top end face of the operating platform and the bottom end of the support column are slidably connected by guide rails and rollers.

[0008] As a preferred embodiment of the present invention, the lifting mechanism includes a scissor lift, one end of which is movably connected to the base and the operating platform respectively, and a connecting shaft is fixed between the other ends of the scissor lift, and is slidably connected to the base and the operating platform respectively through the connecting shaft.

[0009] In a preferred embodiment of this utility model, a screw is threadedly connected to the center of one of the connecting shafts, and a geared motor is installed at one end of the screw. The geared motor body is fixed on the operating platform.

[0010] As a preferred technical solution of this utility model, the fixing structure includes locking bolts, which are disposed on both sides of the bottom end of the support column and are connected to the support column base through threads.

[0011] As a preferred embodiment of the present invention, the steering mechanism includes a support and a gear ring. The support is fixed to the column and the steering beam respectively. A servo motor is fixed inside the support. A gear is fixed to the output end of the servo motor. The gear ring is fixed to the steering column and the cantilever. The gear and the gear ring are meshed together.

[0012] As a preferred embodiment of this utility model, the pipe fastener includes a connecting beam, and bolt tightening clamps are fixed at both ends of the connecting beam.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model achieves precise height adjustment through the lifting mechanism. Combined with the steering mechanism, it can accurately control the coarse and fine adjustment of the steering angle of the steering column, cantilever and steering beam. Combined with the lateral sliding adjustment of the support column, the multi-dimensional synergistic effect ensures that the pipe axis is highly consistent with the design position, effectively avoids the visual error and operation deviation of traditional manual operation, greatly improves the positioning accuracy of pipe welding, and ensures the sealing performance and structural strength of the pressure vessel.

[0015] (2) The device integrates functions such as moving, lifting, turning and fixing, eliminating the tedious steps of repeated measurement, temporary spot welding and confirmation in traditional methods. It achieves rapid positioning and fixing of the pipe through mechanical structure, reduces manual dependence, significantly shortens the operation cycle and meets the efficiency requirements of modern mass production. At the same time, it can effectively prevent the pipe from shifting or deforming due to its own weight or external force during the welding process, reduce welding defects, reduce rework rate and improve welding quality. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0019] Figure 3 This is a schematic diagram of the pipe fixation device in this utility model;

[0020] Figure 4 This is a schematic diagram of the steering mechanism in this utility model;

[0021] In the diagram: 1. Base; 2. Operating platform; 3. Support column; 4. Directional column; 5. Cantilever; 6. Directional beam; 7. Pipe clamp; 8. Traveling wheel; 9. Fixed bracket; 10. Support leg; 11. Scissor lift; 12. Connecting shaft; 13. Screw; 14. Gear motor; 15. Locking bolt; 16. Support; 17. Gear ring; 18. Servo motor; 19. Gear; 20. Connecting beam; 21. Bolt tightening clamp. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-4This utility model provides the following technical solution: a pressure vessel welding pipe connection device, including a base 1, an adjustable movable component installed at the bottom of the base 1, an operating platform 2 arranged collinearly at the top of the base 1, a lifting mechanism installed between the base 1 and the operating platform 2, a support column 3 slidably connected to the top end face of the operating platform 2, a fixed structure provided at the bottom end of the operating platform 2 and the support column 3, a directional column 4 rotatably connected to the top of the support column 3, a cantilever 5 fixed to the top of the directional column 4, a directional beam 6 rotatably connected to the bottom of the tail end of the cantilever 5, a steering mechanism provided between the support column 3 and the directional column 4 and between the cantilever 5 and the directional beam 6, and a pipe fixer 7 fixed to the tail end of the directional beam 6.

[0025] In order to achieve flexible movement and stable positioning of the device, facilitate switching between different welding stations on the pressure vessel and ensure overall stability during operation, in this embodiment, as a preferred technical solution of the present invention, the adjustable moving component includes a traveling wheel 8 and a fixed bracket 9. The traveling wheel 8 is symmetrically installed on both sides of the base 1, and the fixed bracket 9 is symmetrically installed between the two traveling wheels 8. The top of the fixed bracket 9 is fixed to the base 1, and the bottom of the fixed bracket 9 is threadedly connected to a support leg 10.

[0026] In order to limit the movement trajectory and stability of the column 3, in this embodiment, as a preferred technical solution of the present invention, the top end face of the operating platform 2 and the bottom end of the column 3 are slidably engaged by guide rails and rollers.

[0027] In order to achieve precise height adjustment of the operating platform 2 to adapt to the center height design requirements of different specifications of pipes and ensure that the pipe axis matches the height of the preset welding position, in this embodiment, as a preferred technical solution of the present invention, the lifting mechanism includes a scissor lift 11. One end of the scissor lift 11 is movably connected to the base 1 and the operating platform 2 respectively. A connecting shaft 12 is fixed between the other ends of the scissor lift 11 and is slidably connected to the base 1 and the operating platform 2 respectively through the connecting shaft 12. A screw 13 is threadedly connected to the center of one connecting shaft 12. A reduction motor 14 is installed at one end of the screw 13. The body of the reduction motor 14 is fixed on the operating platform 2.

[0028] In order to securely lock the support column 3 in the designated lateral position of the operating platform 2 and prevent it from slipping during steering adjustment or welding operations, and to ensure the stability of positioning accuracy, in this embodiment, as a preferred technical solution of the present invention, the fixing structure includes locking bolts 15, which are disposed on both sides of the bottom end of the support column 3 and are connected to the chassis of the support column 3 by threads.

[0029] In order to accurately adjust the angle and ensure the steering accuracy, thereby driving the pipe fixer 7 to flexibly adjust its direction in three-dimensional space to adapt to welding requirements in different directions, in this embodiment, as a preferred technical solution of the present invention, the steering mechanism includes a support 16 and a gear ring 17. The support 16 is fixed on the support column 3 and the steering beam 6 respectively. A servo motor 18 is fixed inside the support 16. A gear 19 is fixed at the output end of the servo motor 18. The gear ring 17 is fixed on the steering column 4 and the cantilever 5. The gear 19 and the gear ring 17 are meshed and connected.

[0030] In order to achieve a stable clamping of pipes of different diameters and ensure that the axis of the pipes does not deviate during the welding process, in this embodiment, as a preferred technical solution of the present invention, the pipe fixer 7 includes a connecting beam 20, and both ends of the connecting beam 20 are fixed with bolt tightening and loosening pipe clamps 21.

[0031] In summary, with the aid of the above-described technical solution of this utility model, the components operate collaboratively according to the following process:

[0032] Equipment positioning and fixing: The device is pushed to the pressure vessel welding area using the symmetrically installed traveling wheels 8 at the bottom of the base 1. During the pushing process, the travel path can be flexibly adjusted according to the placement of the pressure vessel and the head. After reaching the designated position, the support legs 10 at the bottom of the fixed bracket 9 are rotated to make the bottom of the support legs 10 in close contact with the ground and bear a certain weight of the equipment. The cooperation between the traveling wheels 8 and the support legs 10 realizes the horizontal fine adjustment and stable support of the device, avoiding positioning deviation caused by equipment shaking during welding.

[0033] Pipe clamping and fixing: Insert the pipe to be welded into the bolts at both ends of the connecting beam 20 of the pipe fixer 7 and tighten the pipe clamp 21. Rotate the pipe clamp bolt according to the outer diameter of the pipe to make the inner wall of the pipe clamp fit tightly with the outer surface of the pipe. The clamping force can be controlled by a torque wrench.

[0034] Height Adjustment: The geared motor 14 of the lifting mechanism is activated, and its output torque is converted into linear driving force via the screw 13. Since the screw 13 is threadedly connected to the connecting shaft 12 at one end of the scissor lift 11, and the other end of the scissor lift 11 is hinged to the base 1 and the operating platform 2 respectively, when the connecting shaft 12 slides along the preset grooves on the base 1 and the operating platform 2, the scissor lift 11 unfolds or folds accordingly, driving the operating platform 2 to smoothly rise and fall vertically. Through the forward and reverse control of the geared motor 14, the height of the operating platform 2 can be steplessly adjusted to meet the center height design requirements of different connecting pipes.

[0035] Lateral and steering positioning: Loosen the locking bolts 15 on both sides of the bottom end of the support column 3, and push the support column 3 to slide laterally along the guide rail at the top of the operating platform 2 until the pipe connector inside the pipe holder 7 reaches the welding position. Tighten the locking bolts 15 so that their ends are in close contact with the surface of the operating platform 2, and use the combined effect of friction and bolt preload to lock the position of the support column 3.

[0036] Then, the steering mechanism is activated. The servo motor 18 in the top support 16 of the support column 3 drives the gear 19 to rotate. Through the meshing transmission with the gear ring 17 at the bottom of the steering column 4, the steering column 4 is driven to rotate 360° around the axis of the support column 3, and the horizontal orientation of the cantilever 5 is adjusted for coarse adjustment of the pipe. At the same time, the servo motor 19 in the top support 16 of the steering beam 6 moves synchronously. The meshing of the gear 19 with the gear ring 17 at the tail end of the cantilever 5 causes the steering beam 6 to rotate relative to the cantilever 5 for fine adjustment, ensuring that the pipe axis coincides with the preset welding axis and there is no radial offset. The inner wall of the bolt tightening clamp 21 is designed with a rubber anti-slip pad, which not only avoids damage to the pipe surface, but also absorbs the vibration energy during the welding process.

[0037] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A pressure vessel welding nozzle apparatus comprising a base (1) characterised in that: An adjustable movable component is installed at the bottom of the base (1). An operating platform (2) is arranged colinearly at the top of the base (1). A lifting mechanism is installed between the base (1) and the operating platform (2). A support column (3) is slidably connected to the top end face of the operating platform (2). A fixed structure is provided at the bottom ends of the operating platform (2) and the support column (3). A steering column (4) is rotatably connected to the top end of the support column (3). A cantilever (5) is fixed to the top end of the steering column (4). A steering beam (6) is rotatably connected to the bottom end of the tail end of the cantilever (5). A steering mechanism is provided between the support column (3) and the steering column (4) and between the cantilever (5) and the steering beam (6). A pipe fixer (7) is fixed to the tail end of the steering beam (6).

2. A pressure vessel welding nozzle apparatus according to claim 1, wherein: The adjustable moving component includes a walking wheel (8) and a fixed bracket (9). The walking wheel (8) is symmetrically installed on both sides of the base (1). The fixed bracket (9) is symmetrically installed between the two walking wheels (8). The top of the fixed bracket (9) is fixed to the base (1). The bottom of the fixed bracket (9) is threaded with a support foot (10).

3. A pressure vessel welding nozzle apparatus as defined in claim 1, wherein: The top end face of the operating platform (2) and the bottom end of the support column (3) are slidably connected by guide rails and rollers.

4. A pressure vessel welding nozzle apparatus as defined in claim 1, wherein: The lifting mechanism includes a scissor lift (11), one end of which is movably connected to the base (1) and the operating platform (2), and a connecting shaft (12) is fixed between the other end of the scissor lift (11), and is slidably connected to the base (1) and the operating platform (2) through the connecting shaft (12).

5. A pressure vessel welding nozzle apparatus as defined in claim 4, wherein: One of the connecting shafts (12) is threaded with a screw (13) at its center. A geared motor (14) is installed at one end of the screw (13), and the geared motor (14) is fixed on the operating platform (2).

6. A pressure vessel welding nozzle apparatus as defined in claim 1, wherein: The fixing structure includes locking bolts (15), which are located on both sides of the bottom end of the support column (3) and are connected to the base of the support column (3) by threads.

7. A pressure vessel welding nozzle apparatus as defined in claim 1 wherein: The steering mechanism includes a support (16) and a gear ring (17). The support (16) is fixed on the column (3) and the steering beam (6) respectively. A servo motor (18) is fixed inside the support (16). A gear (19) is fixed at the output end of the servo motor (18). The gear ring (17) is fixed on the steering column (4) and the cantilever (5). The gear (19) and the gear ring (17) are meshed together.

8. A pressure vessel welding nozzle apparatus as defined in claim 1, wherein: The pipe fastener includes a connecting beam (20), and bolt tightening clamps (21) are fixed at both ends of the connecting beam (20).

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