Rapid tool clamp capable of reducing welding stress

By combining the rotating fixture body with the center pin, the problem of traditional welding fixtures being unable to adapt to the thermal expansion and contraction of workpieces is solved, thereby reducing welding stress, improving ease of operation, and enhancing welding quality and production efficiency.

CN223932967UActive Publication Date: 2026-02-24ASEAL (WUXI) SEMICON TECH CO LTD
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Patent Information

Application Number
CN202520571007.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-02-24
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Traditional welding fixtures cannot accommodate the thermal expansion and contraction of workpieces when clamping them for welding, resulting in high welding stress, which affects welding quality and workpiece deformation. They are also complex to operate, time-consuming, and increase labor intensity.

Method used

The design incorporates rotating fixture bodies A and B, which, combined with a center pin and spring, uniformly press the workpiece using the long and short pressure plates of the rotating fixture. This adapts to thermal expansion and contraction. Handles and pull studs are provided for easy movement and positioning, reducing labor intensity.

Benefits of technology

Reduce welding stress, improve welding quality and efficiency, reduce operational complexity and labor intensity, and increase production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of welding tool clamps, and discloses a quick tool clamp capable of reducing welding stress, which comprises a bottom plate, a base arranged at the bottom of the bottom plate, a workpiece plate arranged on the surface of the bottom plate and used for placing a workpiece, and a plurality of groups of rotary tool main bodies A and rotary tool main bodies B respectively mounted on the bottom plate around the workpiece. The multiple sets of rotating tool bodies A and the rotating tool bodies B are provided with rotating tool long pressing plates and rotating tool short pressing plates correspondingly, center pins are connected between the rotating tool long pressing plates and the rotating tool bodies A and between the rotating tool short pressing plates and the rotating tool bodies B in a penetrating mode, the center pins are sleeved with springs, and screws A are arranged at the tops of the center pins. And through the structural design of the rotating tool main bodies A and B, the workpiece can adapt to thermal expansion and contraction in the welding process, and the welding stress is effectively reduced. And through the combination of the center pin and the spring, the workpiece on the workpiece plate can be uniformly and stably pressed, so that the welding quality is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, specifically a fast welding fixture for reducing welding stress. Background Technology

[0002] Welding is a common joining process in modern industrial production, widely used in the manufacture and repair of metal structures. Welding quality directly affects product performance and safety. To ensure welding quality, tooling fixtures are needed to fix and position the workpieces. However, existing welding tooling fixture technology has some problems and shortcomings.

[0003] Traditional welding fixtures often fail to adequately accommodate the thermal expansion and contraction of workpieces during welding, leading to significant welding stress. This stress not only affects the quality of the weld joint but can also cause workpiece deformation, thereby reducing the overall structural stability and reliability.

[0004] Existing welding fixtures require significant auxiliary time during operation, such as adjusting fixture positions and securing workpieces, which reduces production efficiency. Furthermore, the frequent adjustments and changes to the fixtures during welding increase operational complexity.

[0005] Operating traditional welding fixtures often involves high labor intensity, requiring workers to maintain specific postures for extended periods, which can easily lead to fatigue and, in the long run, harm their health. This high-intensity labor not only affects worker efficiency but may also increase production costs.

[0006] Therefore, based on the above-mentioned technical problems, it is necessary for those skilled in the art to develop a quick-setting tooling fixture to reduce welding stress. Utility Model Content

[0007] The purpose of this invention is to provide a quick-setting tooling fixture to reduce welding stress, thereby solving the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A quick-fixture solution for reducing welding stress includes a base plate with a base at its bottom and a workpiece plate on its surface for placing a workpiece. Multiple sets of rotating fixture bodies A and B are mounted on the base plate around the workpiece. Each set of rotating fixture bodies A and B has a long rotating fixture pressure plate and a short rotating fixture pressure plate mounted on it. A central pin connects the long and short rotating fixture pressure plates to the rotating fixture bodies A and B, and a spring is fitted onto the central pin. A screw A is located on the top of the central pin.

[0010] As a preferred technical solution, a washer is connected to the screw A.

[0011] As a preferred technical solution, handles are provided on both sides of the base plate, and the handles are installed on the base plate by screws C.

[0012] As a preferred technical solution, the workpiece plate is mounted on the base plate by screw B.

[0013] As a preferred technical solution, the multiple sets of rotating tooling bodies A and B are connected to the base plate by screws D.

[0014] As a preferred technical solution, multiple sets of rivets are provided at the corners of the bottom surface of the base plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model relates to a rapid welding stress reduction fixture. The rotating fixture body A and B are designed to accommodate thermal expansion and contraction of the workpiece during welding, effectively reducing welding stress. Through a combination of a center pin and a spring, the workpiece on the workpiece plate is uniformly and stably clamped, ensuring welding quality. The fixture can quickly adapt to workpieces of different sizes and shapes, significantly improving operational convenience and production efficiency. The handles on both sides of the base plate facilitate movement and positioning of the fixture, reducing worker fatigue. This utility model improves the efficiency and quality of welding operations, possessing significant practical value and promising market application prospects. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a rapid tooling fixture for reducing welding stress;

[0018] Figure 2 A side view of a quick-fix tooling fixture for reducing welding stress;

[0019] Figure 3 for Figure 1A schematic diagram of the cross-sectional structure at point A of a quick-fix tooling fixture for reducing welding stress;

[0020] Figure 4 for Figure 2 A schematic diagram of the cross-sectional structure at point B of a quick-fix tooling fixture for reducing welding stress.

[0021] In the attached diagram, the following are the reference numerals: 1. Base plate; 2. Tie nail; 3. Handle; 4. Workpiece; 5. Rotary fixture body A; 6. Rotary fixture body B; 7. Rotary fixture long pressure plate; 8. Rotary fixture short pressure plate; 9. Spring; 10. Center pin; 11. Washer; 12. Screw A; 13. Screw B; 14. Screw C; 15. Screw D; 16. Base; 17. Workpiece plate. Detailed Implementation

[0022] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of this utility model by illustrating examples.

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a quick-fixture solution for reducing welding stress: it includes a base plate 1, which is the foundation of the entire fixture and is typically made of high-strength steel to ensure sufficient rigidity and stability. A base 16 is provided at the bottom of the base plate 1 to support the entire fixture and ensure its stability during the welding process. A workpiece plate 17 is provided on the surface of the base plate 1 for placing the workpiece 4 to be welded. The workpiece plate 17 is fixed to the base plate 1 by screws B, allowing for easy replacement and adjustment according to different workpiece sizes.

[0024] Multiple sets of rotating fixture bodies A and B are installed around the base plate 1. These rotating fixture bodies 5 and 6 can rotate around the central pin 10 to accommodate the thermal expansion and contraction of the workpiece 4 during the welding process. Rotating fixture bodies A and B are respectively equipped with a long rotating fixture pressure plate 7 and a short rotating fixture pressure plate 8. These pressure plates are used to apply pressure to the workpiece 4 during the welding process to reduce welding stress.

[0025] A center pin 10 passes through the rotating fixture bodies A and B and the spring 9, with a screw A12 mounted on the top of the center pin. By adjusting screw A12, the compression degree of the spring 9 can be controlled, thereby adjusting the pressure of the pressure plates 7 and 8 on the workpiece 4. The function of the spring 9 is to provide a constant pressure, ensuring that the workpiece 4 is uniformly and stably pressed during the welding process.

[0026] Handles 3 are provided on both sides of the base plate 1, and the handles 3 are installed on the base plate 1 by screws C14. The design of the handles 3 makes it easier to move and position the tooling fixture, reducing the labor intensity of workers. Multiple sets of rivets 2 are provided at the bottom corners of the base plate 1. The rivets 2 are used to fix the position of the tooling fixture on the worktable and prevent it from moving during the welding process.

[0027] When using this fixture, first place the workpiece 4 on the workpiece plate 17. Then, adjust the positions of the rotating fixture bodies A and B according to the size and shape of the workpiece 4 to ensure that the pressure plates 7 and 8 can evenly press the workpiece 4. Set the appropriate clamping force by adjusting screw A12, and then perform the welding operation. After welding is completed, loosen screw A12, and rotating the fixture bodies A and B can easily release the workpiece 4, making it easy to remove and replace with a new workpiece.

[0028] This utility model of a rapid welding stress reduction fixture can effectively adapt to the thermal expansion and contraction of the workpiece, reduce welding stress, ensure welding quality, and at the same time improve the convenience of operation and production efficiency, and reduce the labor intensity of workers.

[0029] The working principle and usage process of this utility model: After assembling the various components of this solution in sequence, work according to the above implementation methods according to actual needs to complete all working steps.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] 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.

[0033] The embodiments described above are not exhaustive, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the invention, enabling those skilled in the art to effectively utilize the invention and its modifications. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A quick-setting tooling fixture for reducing welding stress, characterized in that, Includes a base plate (1), the bottom of which is provided with a base (16), and a workpiece plate (17) is provided on the surface of the base plate (1). The workpiece plate (17) is used to place the workpiece (4). Multiple sets of rotating fixture bodies A (5) and rotating fixture bodies B (6) are respectively installed on the base plate (1) around the workpiece (4). Rotating fixture long pressure plate (7) and rotating fixture short pressure plate (8) are respectively installed on the multiple sets of rotating fixture bodies A (5) and rotating fixture bodies B (6). A center pin (10) is connected between the rotating fixture long pressure plate (7) and rotating fixture short pressure plate (8) and the rotating fixture body A (5) and rotating fixture body B (6). A spring (9) is fitted on the center pin (10). A screw A (12) is provided on the top of the center pin (10).

2. The quick-fixture tooling for reducing welding stress according to claim 1, characterized in that: A washer (11) is threaded through the screw A (12).

3. The quick-fixture tooling fixture for reducing welding stress according to claim 1, characterized in that: Handles (3) are provided on both sides of the base plate (1), and the handles (3) are installed on the base plate (1) by screws C (14).

4. The quick-fixture tooling fixture for reducing welding stress according to claim 1, characterized in that: The workpiece plate (17) is mounted on the base plate (1) by screw B (13).

5. A quick-fixture tooling fixture for reducing welding stress according to claim 1, characterized in that: The multiple sets of rotating tooling bodies A (5) and B (6) are connected to the base plate (1) by screws D (15).

6. A quick-fixture tooling fixture for reducing welding stress according to claim 1, characterized in that: The bottom plate (1) has multiple sets of rivets (2) at the bottom corners.