Tank supporting leg rib plate assembly welding tool
By designing welding fixtures for the tank support leg stiffeners and utilizing a servo motor and a one-way threaded rod system, the problem of uneven assembly of the support leg stiffeners was solved, thus improving the stability and safety of the tank.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-07
AI Technical Summary
Without specialized tooling, it is difficult to precisely control the position and angle of the tank support ribs during assembly, resulting in uneven distribution and affecting the stability and safety of the tank.
A welding fixture for assembling the support leg stiffeners of a tank body was designed. A servo motor drives the gear to rotate, and the uniform distribution and positioning of the support leg stiffeners are achieved through the cooperation of a one-way threaded rod and a threaded block, ensuring welding accuracy.
This tooling achieves uniform distribution of the support leg stiffeners, prevents positional displacement, and improves the structural stability and safety of the tank.
Smart Images

Figure CN224088254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding tooling technology, specifically to welding tooling for tank support leg stiffener plate assembly. Background Technology
[0002] Welding fixtures are a general term for clamps, mechanical devices, or equipment that play a coordinating and auxiliary role in the assembly and welding process of welded structures. They are mainly used to fix, clamp, and position welded workpieces to ensure welding quality and improve production efficiency. Tank support leg stiffeners are an important component of the tank support leg structure. Tank support leg stiffener assembly welding fixtures are special equipment used in tank manufacturing to assemble and weld support leg stiffeners.
[0003] Without specialized tooling, it is difficult to accurately control the dimensional accuracy of the relative position, angle, and spacing between the support plates and the tank legs, as well as the dimensional accuracy of the support plates themselves, when assembling the support plates manually. Furthermore, uneven distribution of the support plates may lead to uneven pressure distribution on the foundation, which can easily cause excessive local pressure on the foundation, resulting in damage such as subsidence and cracking, and thus affecting the stability of the entire tank. Utility Model Content
[0004] The purpose of this utility model is to provide a welding fixture for the tank support leg stiffener plate assembly, so as to solve the problem of uneven distribution of tank support leg stiffener plates leading to a decrease in tank stability and safety as mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding fixture for the tank support leg rib plate assembly, including a base, with support frames installed on both sides of the top of the base, and a sliding rod vertically installed inside the support frame. A slider is slidably connected to the outer wall of the sliding rod, and an arc-shaped support plate is horizontally installed between the sliders. The tank body is placed on top of the arc-shaped support plate, and a cylinder is installed at the bottom of the base. A pneumatic telescopic rod for controlling the up and down movement of the arc-shaped support plate is installed at the top of the cylinder. It also includes a one-way threaded rod and a threaded block for controlling the synchronous movement of the support leg rib plate body.
[0006] A movable plate is slidably mounted on the rear end of the top of the base, and a servo motor is mounted on the rear end of the movable plate. A drive gear is mounted on the output end of the servo motor, and a transmission groove is opened inside the movable plate. Sliding grooves are opened inside the movable plate on both sides and at the top and bottom ends of the transmission groove. A one-way threaded rod is rotatably mounted on the end of the sliding groove away from the transmission groove. A driven gear is mounted on the end of the one-way threaded rod that is close to each other. A threaded block that moves with the rotation of the thread is fitted on the outer wall of the one-way threaded rod. A fixing block is mounted on the front end of the threaded block, and a support leg rib plate body is fixedly mounted on the outer wall of the fixing block.
[0007] Preferably, the top ends of the pneumatic telescopic rods all pass through the base, and the top ends of the pneumatic telescopic rods all extend above the base.
[0008] Preferably, the pneumatic telescopic rod is fixedly installed at the bottom end of the arc-shaped support plate, and the arc-shaped support plate forms a sliding structure through a slider and a sliding rod.
[0009] Preferably, the output end of the servo motor passes through the movable plate and extends into the interior of the transmission groove.
[0010] Preferably, the ends of the one-way threaded rods that are close to each other pass through the movable plate, and the ends of the one-way threaded rods that are close to each other extend into the interior of the transmission groove.
[0011] Preferably, the driven gears are all located in front of the threaded block, and the driven gears are all meshed with the threaded block.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: the servo motor drives the drive gear to rotate, which in turn drives the driven gear to rotate the one-way threaded rod, thereby controlling the threaded blocks to move synchronously on the outer wall of the one-way threaded rod. The moving directions of the threaded blocks are towards and away from each other. The threaded blocks drive the fixed block and the main body of the support leg rib plate to move, and then push the movable plate towards the tank body, so that the main body of the support leg rib plate can be welded to the tank body. Under the action of multiple one-way threaded rods and threaded blocks, this structure makes the main body of the support leg rib plate evenly distributed at the bottom of the tank body, preventing the position of the main body of the support leg rib plate from shifting, which would cause uneven pressure distribution in the tank body and affect its structural stability and safety. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram of the present invention from a second perspective;
[0015] Figure 3 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 4 This is a side view of the structure of this utility model;
[0017] Figure 5 This is a schematic diagram of the main structure of the movable plate of this utility model.
[0018] In the diagram: 1. Base; 2. Support frame; 3. Slider; 4. Movable plate; 5. Slide groove; 6. One-way threaded rod; 7. Driven gear; 8. Fixed block; 9. Main body of support leg rib plate; 10. Arc-shaped support plate; 11. Tank body; 12. Slide rod; 13. Pneumatic telescopic rod; 14. Cylinder; 15. Servo motor; 16. Threaded block; 17. Drive gear; 18. Transmission groove. Detailed Implementation
[0019] 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.
[0020] Example 1: Please refer to Figure 1-5 The welding fixture for the support leg stiffener plate assembly includes a base 1, with support frames 2 installed on both sides of the top of the base 1, and a slide rod 12 vertically installed inside the support frame 2. The outer wall of the slide rod 12 is slidably connected to a slider 3, and an arc-shaped support plate 10 is installed horizontally between the sliders 3. The tank body 11 is placed on top of the arc-shaped support plate 10, and a cylinder 14 is installed at the bottom of the base 1. A pneumatic telescopic rod 13 for controlling the up and down movement of the arc-shaped support plate 10 is installed at the top of the cylinder 14. It also includes a one-way threaded rod 6 and a threaded block 16 for controlling the synchronous movement of the support leg stiffener plate body 9.
[0021] A movable plate 4 is slidably installed at the rear end of the top of the base 1, and a servo motor 15 is installed at the rear end of the movable plate 4. A drive gear 17 is installed at the output end of the servo motor 15, and a transmission groove 18 is opened inside the movable plate 4. Slide grooves 5 are opened inside the movable plate 4 on both sides and at the top and bottom ends of the transmission groove 18. A one-way threaded rod 6 is rotatably installed at the end of the slide groove 5 away from the transmission groove 18. A driven gear 7 is installed at the end of the one-way threaded rod 6 that is close to each other. A threaded block 16 that moves with the rotation of the thread is fitted on the outer wall of the one-way threaded rod 6. A fixing block 8 is installed at the front end of the threaded block 16, and a support leg rib plate body 9 is fixedly installed on the outer wall of the fixing block 8.
[0022] The top of each pneumatic telescopic rod 13 passes through the base 1, and the top of each pneumatic telescopic rod 13 extends above the base 1.
[0023] The pneumatic telescopic rod 13 is fixedly installed at the bottom end of the arc-shaped support plate 10, and the arc-shaped support plate 10 forms a sliding structure with the sliding rod 12 through the slider 3;
[0024] The output end of the servo motor 15 passes through the movable plate 4, and the output end of the servo motor 15 extends into the interior of the transmission groove 18;
[0025] The ends of the one-way threaded rods 6 that are close to each other pass through the movable plate 4, and the ends of the one-way threaded rods 6 that are close to each other extend into the interior of the transmission groove 18.
[0026] The driven gears 7 are all located in front of the threaded block 16, and the driven gears 7 are all meshed with the threaded block 16;
[0027] Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, when using this mechanism, the tank body 11 is placed above the arc-shaped support plate 10. Then, the pneumatic telescopic rod 13 is extended and retracted by the cylinder 14 to control the height of the tank body 11, so that the horizontal position of the center point of the tank body 11 is aligned with the horizontal position of the center point of the threaded block 16. The movable plate 4 is pushed closer to the tank body 11, so that the support leg stiffener plate body 9 can be welded to the tank body 11.
[0028] Working principle: The operator places the tank body 11 above the arc-shaped support plate 10, and then controls the extension and retraction of the pneumatic telescopic rod 13 through the cylinder 14, thereby controlling the height of the tank body 11 so that the horizontal position of the center point of the tank body 11 is aligned with the horizontal position of the center point of the threaded block 16. Then, the operator fixes the support leg stiffener plate body 9 to the outer wall of the fixing block 8 through the screw rod, and starts the servo motor 15. The servo motor 15 drives the drive gear 17 to rotate. Since the drive gear 17 and the driven gear 7 mesh with each other, the threaded block 16 can drive the driven gear 7 to rotate, so that the driven gear 7 drives the one-way threaded rod 6 to rotate, thereby controlling the threaded block 16 to move synchronously on the outer wall of the one-way threaded rod 6. The moving direction of the threaded block 16 is towards and away from each other. The threaded block 16 drives the fixing block 8 and the support leg stiffener plate body 9 to move. Then, the operator pushes the movable plate 4 towards the tank body 11, so that the support leg stiffener plate body 9 can be welded to the tank body 11.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A welding fixture for the support leg plates of a tank body, comprising a base (1), wherein support frames (2) are installed on both sides of the top of the base (1), and a sliding rod (12) is vertically installed inside the support frame (2), and a slider (3) is slidably connected to the outer wall of the sliding rod (12), and an arc-shaped support plate (10) is horizontally installed between the sliders (3), and a tank body (11) is placed above the arc-shaped support plate (10), and a cylinder (14) is installed at the bottom of the base (1), and a pneumatic telescopic rod (13) for controlling the up and down movement of the arc-shaped support plate (10) is installed at the top of the cylinder (14), characterized in that: It also includes a one-way threaded rod (6) and a threaded block (16) for controlling the synchronous movement of the main body (9) of the support leg stiffener plate; A movable plate (4) is slidably installed at the rear end of the top of the base (1), and a servo motor (15) is installed at the rear end of the movable plate (4). A drive gear (17) is installed at the output end of the servo motor (15), and a transmission groove (18) is opened inside the movable plate (4). Slide grooves (5) are opened inside the movable plate (4) on both sides and at the top and bottom ends of the transmission groove (18). A one-way threaded rod (6) is rotatably installed at the end of the slide groove (5) away from the transmission groove (18). A driven gear (7) is installed at the end of the one-way threaded rod (6) that is close to each other. A threaded block (16) that moves with the rotation of the thread is sleeved on the outer wall of the one-way threaded rod (6). A fixing block (8) is installed at the front end of the threaded block (16), and a support leg rib plate body (9) is fixedly installed on the outer wall of the fixing block (8).
2. The welding fixture for the tank support leg stiffener plate assembly according to claim 1, characterized in that: The top ends of the pneumatic telescopic rods (13) all pass through the base (1), and the top ends of the pneumatic telescopic rods (13) all extend above the base (1).
3. The welding fixture for the tank support leg stiffener plate assembly according to claim 1, characterized in that: The pneumatic telescopic rod (13) is fixedly installed at the bottom end of the arc-shaped support plate (10), and the arc-shaped support plate (10) forms a sliding structure with the slider (3) and the slide rod (12).
4. The welding fixture for the tank support leg stiffener plate assembly according to claim 1, characterized in that: The output end of the servo motor (15) passes through the movable plate (4) and extends into the interior of the transmission groove (18).
5. The welding fixture for the tank support leg stiffener plate assembly according to claim 1, characterized in that: The ends of the one-way threaded rods (6) that are close to each other all pass through the movable plate (4), and the ends of the one-way threaded rods (6) that are close to each other all extend into the interior of the transmission groove (18).
6. The welding fixture for the tank support leg stiffener plate assembly according to claim 1, characterized in that: The driven gears (7) are all located in front of the threaded block (16), and the driven gears (7) are all meshed with the threaded block (16).