Flexible adjustable container door hinge welding tool
The design of flexible and adjustable container door hinge welding fixtures solves the problem of insufficient flexibility of traditional fixtures, enabling stable welding of different types of hinges and improving welding quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional container door hinge welding fixtures lack flexibility, requiring redesign and remanufacturing when changing models, which affects production efficiency and cost, and cannot meet the diverse needs of container door hinges.
A flexible and adjustable container door hinge welding fixture is designed. Through the combination of threaded holes, threaded rods and fasteners, it can achieve all-round and three-dimensional constraint on different types of hinges to ensure the stability of the welding.
This improved welding quality, reduced defects such as incomplete welds and missed welds, enhanced the strength and reliability of welded joints, and ensured high-quality welding of container door hinges.
Smart Images

Figure CN224088292U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding fixture technology, specifically a flexible adjustable container door hinge welding fixture. Background Technology
[0002] Against the backdrop of continued growth in global trade, container shipping, as an efficient and convenient logistics method, is constantly expanding its application scope. With the increasing variety of container usage scenarios, more diverse requirements are being placed on the performance, specifications, and installation methods of container door hinges. Different sizes of containers and different opening methods of containers (such as side-opening doors and double-opening doors) all require different models of door hinges, which has led to a sharp increase in the types of container door hinges, from conventional standard-sized hinges to customized hinges designed for special-purpose containers, covering a wide range of product series.
[0003] Traditional container door hinge welding fixtures are typically designed and manufactured for a specific hinge model. The positioning and clamping structures of these fixtures are entirely customized according to the size and shape of the specific hinge, lacking flexibility. Once welding other hinge models is required, the fixture often needs to be redesigned and manufactured. This not only consumes a lot of time and costs but also seriously affects production efficiency. For example, when a container manufacturing company receives a new batch of orders requiring the use of new hinge models, the company has to suspend production and wait for the new fixtures to be made because the existing fixtures are not applicable. This will undoubtedly delay the delivery time and increase production costs. Therefore, we propose a new type of flexible and adjustable container door hinge welding fixture. Utility Model Content
[0004] This utility model provides the following technical solution: a flexible adjustable container door hinge welding fixture, including a welding table, the upper end of which is provided with multiple threaded holes, the surfaces of which are threaded, wherein each of the multiple threaded holes is threadedly connected to a threaded rod, the upper end of each of the multiple threaded rods is fixedly installed with a fixed cylinder, the interior of each fixed cylinder is connected to a rotating rod through a bearing, the outer surface of the fixed cylinder is provided with a fixing member, the upper end of the rotating rod is fixedly installed with a fixing plate, the fixing plate is connected to a clamping screw through a moving member, and the bottom end of the clamping screw is fixedly installed with a clamping plate.
[0005] Preferably, the movable component includes an adjustment slot, which is disposed through the upper end of the fixed plate. A threaded plate is connected to the adjustment slot by a limiting component. A threaded rod is rotatably connected to the side end of the threaded plate by a bearing. The threaded rod is threadedly connected to the fixed plate and passes through the side wall of the fixed plate. The clamping screw is threadedly connected to the threaded plate and passes through the side wall of the threaded plate.
[0006] Preferably, the limiting component includes two limiting grooves and two limiting sliders. The two limiting grooves are respectively opened on both sides of the adjusting through groove, and the two limiting sliders are slidably connected in the two limiting grooves. The two limiting sliders are respectively fixedly installed on both sides of the threaded plate.
[0007] Preferably, the fixing component includes a fixing gear, a limiting toothed plate, a T-shaped rod, and a fixing spring. The fixing gear is fixedly installed on the outer surface of the rotating rod, the T-shaped rod is slidably connected to the outer surface of the fixing cylinder, the limiting toothed plate is fixedly installed on one end of the fixing gear, and a fixing spring is sleeved on the outer surface of the T-shaped rod. The two ends of the fixing spring are respectively fixedly installed on the outer surface of the fixing cylinder and the side end of the T-shaped rod.
[0008] Preferably, a pressure pad is fixedly installed at the bottom end of the pressure plate, and the pressure pad is a rubber pad.
[0009] Preferably, a handle is fixedly installed at the upper end of the clamping screw and at one end of the threaded rod, and both ends of the handle are provided with protrusions.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This invention employs a dual fixing method of side abutment and top pressing to provide comprehensive, three-dimensional constraint for hinge components of different models. For hinges with complex shapes and structures, the side abutment conforms to their irregular side contours, providing support and positioning for the hinge. The top pressing applies pressure evenly to the upper surface of the hinge, ensuring that the entire hinge remains stable during welding. This combined fixing method effectively secures all parts of complex hinges, reducing welding defects caused by unstable fixing, such as incomplete welds or missed welds. This, in turn, improves the strength and reliability of the weld joint, ensuring high-quality welding of container door hinges. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the component structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the fastener structure of this utility model.
[0015] In the diagram: 1. Welding table; 2. Threaded hole; 3. Threaded rod one; 4. Fixed cylinder; 5. Rotating rod; 6. Fixing component; 601. Fixed gear; 602. Restricting tooth plate; 603. T-shaped rod; 604. Fixed spring; 7. Fixed plate; 8. Clamping screw; 9. Clamping plate; 10. Threaded plate; 11. Clamping pad; 12. Adjusting through groove; 13. Threaded rod two; 14. Handle; 15. Limiting slide groove; 16. Limiting slider.
[0016] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation
[0017] 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.
[0018] like Figure 1-3 As shown, this utility model provides a technical solution: a flexible adjustable container door hinge welding fixture, including a welding table 1, the upper end of the welding table 1 is provided with multiple threaded holes 2, the surfaces of the multiple threaded holes 2 are arranged in a threaded shape, each of the multiple threaded holes 2 is threaded with a threaded rod 3, the upper end of each of the multiple threaded rods 3 is fixedly installed with a fixed cylinder 4, the interior of each fixed cylinder 4 is connected to a rotating rod 5 through a bearing, the outer surface of the fixed cylinder 4 is provided with a fixing member 6, the upper end of the rotating rod 5 is fixedly installed with a fixing plate 7, the fixing plate 7 is connected to a clamping screw 8 through a moving member, and the bottom end of the clamping screw 8 is fixedly installed with a clamping plate 9.
[0019] In an optional embodiment: the movable component includes an adjustment slot 12, which is disposed through the upper end of the fixed plate 7. A threaded plate 10 is connected to the adjustment slot 12 by a limiting component. A threaded rod 13 is rotatably connected to the side end of the threaded plate 10 by a bearing. The threaded rod 13 is threadedly connected to the fixed plate 7 and passes through the side wall of the fixed plate 7. A clamping screw 8 is threadedly connected to the threaded plate 10 and passes through the side wall of the threaded plate 10.
[0020] It should be noted that by rotating the threaded rod 13 in both directions, the threaded rod 13 is threadedly connected to the fixed plate 7. Thus, while rotating the threaded rod 13, it can move left and right. The left and right movement of the threaded rod 13 will push the threaded plate 10 to move left and right, thereby adjusting the distance between the pressing plate 9 and the fixed cylinder 4.
[0021] In an optional embodiment: the limiting member includes two limiting grooves 15 and two limiting sliders 16. The two limiting grooves 15 are respectively opened on the two sides of the adjusting through groove 12, and the two limiting sliders 16 are respectively slidably connected in the two limiting grooves 15. The two limiting sliders 16 are respectively fixedly installed on the two sides of the threaded plate 10.
[0022] It should be noted that it can provide a certain supporting force for the threaded plate 10, and can also move left and right under the drive of the threaded rod 13.
[0023] In an optional embodiment: the fixing member 6 includes a fixing gear 601, a limiting tooth plate 602, a T-shaped rod 603 and a fixing spring 604. The fixing gear 601 is fixedly installed on the outer surface of the rotating rod 5. The T-shaped rod 603 is slidably connected to the outer surface of the fixing cylinder 4. The limiting tooth plate 602 is fixedly installed on one end of the fixing gear 601. The fixing spring 604 is sleeved on the outer surface of the T-shaped rod 603. The two ends of the fixing spring 604 are respectively fixedly installed on the outer surface of the fixing cylinder 4 and the side end of the T-shaped rod 603.
[0024] It should be noted that when the rotating rod 5 needs to be rotated, the T-shaped rod 603 is pulled outward, the fixing spring 604 is stretched, and the T-shaped rod 603 moves to the left, which in turn moves the limiting tooth plate 602 to the left. The limiting tooth plate 602 separates from the fixing gear 601, and the rotating rod 5 can then be rotated. When it is necessary to constrain the rotation direction of the rotating rod 5, the outward pulling force on the T-shaped rod 603 is released, and under the elastic force of the fixing spring 604, the T-shaped rod 603 moves to the right, thereby causing the limiting tooth plate 602 to also move to the right. The limiting tooth plate 602 and the fixing gear 601 are locked together, thus completing the constraint on the rotation direction of the rotating rod 5.
[0025] In an optional embodiment, a pressure pad 11 is fixedly installed at the bottom end of the pressure plate 9. The pressure pad 11 is a rubber pad.
[0026] It should be noted that the surface of the rubber pad usually has a certain degree of roughness, which can increase the friction between the rubber pad and the hinge components, preventing the hinge components from sliding or shifting under pressure. The flexibility of the clamping plate 9 allows it to avoid direct contact between metal or other hard materials, preventing damage caused by friction or impact.
[0027] In an optional embodiment: a handle 14 is fixedly installed on the upper end of the clamping screw 8 and one end of the threaded rod 13, and both ends of the handle 14 are provided with protrusions.
[0028] It should be noted that the design of handle 14 allows users to easily grip and rotate the corresponding threaded rod, thereby controlling the components connected to the threaded rod. The protrusions at both ends provide a better grip, prevent the hand from slipping during rotation, and ensure the stability of operation.
[0029] In practical use, the working principle of this utility model is as follows:
[0030] First, place the hinge component to be welded on the upper end of the welding table 1. Then, rotate the threaded rod 3 into the threaded hole 2 at the edge of the hinge component. The fixing cylinder 4 can form a certain constraint on the edge of the hinge component. Then, rotate the rotating rod 5 to rotate the clamping screw 8 to the upper end of the hinge component that needs to be fixed. After rotation, the rotating rod 5 is constrained by the operating fixing part 6. Then, by rotating the clamping screw 8, the clamping screw 8 rotates downward, moving the clamping plate 9 downward to press on the upper end of the hinge component. The upper clamping can evenly apply pressure to the upper surface of the hinge, ensuring that the entire hinge is in a stable state during welding. It can form a comprehensive and three-dimensional constraint on different types of hinge components, so that all parts of the complex hinge can be effectively fixed, reducing welding defects caused by unstable fixing, such as incomplete welding and missing welding, thereby improving the strength and reliability of the welded joint and ensuring high-quality welding of container door hinges.
[0031] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A flexible adjustable container door hinge welding fixture, comprising a welding table (1), characterized in that: The upper end of the welding table (1) is provided with multiple threaded holes (2), and the surfaces of the multiple threaded holes (2) are threaded. Each of the multiple threaded holes (2) is threaded with a threaded rod (3). The upper end of each of the multiple threaded rods (3) is fixedly installed with a fixed cylinder (4). The interior of each fixed cylinder (4) is connected to a rotating rod (5) through a bearing. The outer surface of the fixed cylinder (4) is provided with a fixing member (6). The upper end of the rotating rod (5) is fixedly installed with a fixing plate (7). The fixing plate (7) is connected to a clamping screw (8) through a moving member. The bottom end of the clamping screw (8) is fixedly installed with a clamping plate (9).
2. The flexible adjustable container door hinge welding fixture according to claim 1, characterized in that: The movable component includes an adjustment slot (12), which is disposed through the upper end of the fixed plate (7). A threaded plate (10) is connected to the adjustment slot (12) by a limiting component. A threaded rod (13) is rotatably connected to the side end of the threaded plate (10) by a bearing. The threaded rod (13) is threadedly connected to the fixed plate (7) and passes through the side wall of the fixed plate (7). The clamping screw (8) is threadedly connected to the threaded plate (10) and passes through the side wall of the threaded plate (10).
3. The flexible adjustable container door hinge welding fixture according to claim 2, characterized in that: The limiting component includes two limiting grooves (15) and two limiting sliders (16). The two limiting grooves (15) are respectively opened on both sides of the adjusting through groove (12). The two limiting sliders (16) are respectively slidably connected in the two limiting grooves (15). The two limiting sliders (16) are respectively fixedly installed on both sides of the threaded plate (10).
4. The flexible adjustable container door hinge welding fixture according to claim 1, characterized in that: The fixing component (6) includes a fixing gear (601), a limiting tooth plate (602), a T-shaped rod (603), and a fixing spring (604). The fixing gear (601) is fixedly installed on the outer surface of the rotating rod (5). The T-shaped rod (603) is slidably connected to the outer surface of the fixing cylinder (4). The limiting tooth plate (602) is fixedly installed on one end of the fixing gear (601). The fixing spring (604) is sleeved on the outer surface of the T-shaped rod (603). The two ends of the fixing spring (604) are respectively fixedly installed on the outer surface of the fixing cylinder (4) and the side end of the T-shaped rod (603).
5. The flexible adjustable container door hinge welding fixture according to claim 1, characterized in that: A pressure pad (11) is fixedly installed at the bottom end of the pressure plate (9), and the pressure pad (11) is a rubber pad.
6. The flexible adjustable container door hinge welding fixture according to claim 2, characterized in that: A handle (14) is fixedly installed at the upper end of the clamping screw (8) and at one end of the threaded rod (13), and both ends of the handle (14) are provided with protrusions.