A frame welding tool structure

By introducing a cooling system with built-in and external pipes into the frame welding fixture, the problem of low heat dissipation efficiency was solved, achieving efficient heat dissipation and improving the assembly accuracy and stability of the product.

CN224463987UActive Publication Date: 2026-07-07JIANGSU TIANJUN PRECISION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU TIANJUN PRECISION TECH CO LTD
Filing Date
2025-07-10
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

The existing frame welding fixture has low heat dissipation efficiency during continuous welding, which leads to a sharp increase in local temperature. This causes the fixture and frame to expand thermally and then contract after cooling, resulting in large stress and affecting the product assembly accuracy.

Method used

The cooling component, consisting of an internal tube and an external tube in the positioning block, removes welding heat through coolant circulation, improving heat dissipation efficiency, reducing temperature peaks, and minimizing shrinkage stress caused by temperature differences.

Benefits of technology

It significantly improves the assembly accuracy and stability of the product, and avoids dimensional deviations caused by thermal expansion and shrinkage stress after cooling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of frame welding tool structure, the structure includes positioning assembly, the positioning assembly, the positioning assembly includes locating block, the locating block acts on the both sides of workpiece to be welded;The structure further includes cooling element, and the cooling element is set in the locating block.The new model directly solves the core problem of the low heat dissipation efficiency of traditional tool by introducing the cooling element composed of built-in tube and external tube in locating block.The circulation of cooling liquid in the built-in tube inside the locating block efficiently takes away the heat conducted to the tool body during welding, significantly reduces the temperature peak of the locating block-its contact area frame section bar, significantly reduces the shrinkage stress caused by excessive temperature difference after workpiece cooling, and improves the assembly accuracy of the product.
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Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and in particular to a frame welding fixture structure. Background Technology

[0002] In the welding of frame profiles, fixed tooling fixtures are typically used to position and clamp the frame profiles. However, existing tooling structures have significant drawbacks in the welding process:

[0003] During continuous welding, the tooling body is in direct contact with the frame, and heat from the weld area is rapidly conducted to the tooling and adjacent frame areas, causing a sharp rise in local temperature. This high temperature causes thermal expansion of the tooling and frame, resulting in shrinkage stress upon cooling. This leads to dimensional deviations and flatness errors in the frame, severely affecting product assembly accuracy. Furthermore, traditional tooling is often a solid metal block or a simple support structure, relying solely on natural cooling, which is inefficient and cannot achieve balanced temperature control. The working conditions deteriorate further, especially during mass production. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a frame welding fixture structure to solve one or more problems in the prior art.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A frame welding fixture structure includes a positioning component, which includes positioning blocks that act on both sides of the workpiece to be welded; the structure also includes a cooling component disposed on the positioning blocks.

[0007] Furthermore, the structure includes a support block and a worktable, with the support block disposed at the bottom of the worktable.

[0008] Furthermore, the structure also includes a positioning pin, one end of which is connected to the support block and passes through the worktable along a first direction.

[0009] Furthermore, the positioning component also includes a cylinder, one end of which is connected to a portion of the positioning block, and the portion of the positioning block is also disposed on the surface of the worktable.

[0010] Furthermore, the cooling component includes an internal tube disposed within the positioning block.

[0011] Furthermore, the cooling component also includes an external connecting pipe, which is disposed on both sides of the positioning block and communicates with the internal pipe.

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

[0013] This novel design directly addresses the core problem of low heat dissipation efficiency in traditional tooling by introducing a cooling component consisting of an internal tube and an external tube within the positioning block. By circulating coolant within the internal tube of the positioning block, heat conducted to the tooling body during welding is efficiently removed, significantly reducing the temperature peak of the positioning block itself and its contact area frame profile. This greatly reduces shrinkage stress caused by excessive temperature differences after workpiece cooling, thus improving the assembly accuracy of the product. Attached Figure Description

[0014] Figure 1 A schematic diagram of a frame welding fixture structure according to an embodiment of the present invention is shown.

[0015] Figure 2 This diagram illustrates the mating structure of the cooling component and the positioning block in a frame welding fixture structure according to an embodiment of the present invention.

[0016] Figure 3 This image shows a partial enlarged view of the positioning component of a frame welding fixture structure according to an embodiment of the present invention.

[0017] The following are labels in the attached diagram: 1. Positioning component; 11. Positioning block; 12. Cylinder; 2. Cooling component; 21. Internal pipe; 22. External pipe; 3. Support block; 4. Worktable; 5. Positioning pin. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description of a frame welding fixture structure proposed by this utility model, in conjunction with the accompanying drawings and specific embodiments, will provide further clarity. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, used only to facilitate and clearly illustrate the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives achieved by this utility model, should still fall within the scope of the technical content disclosed in this utility model.

[0019] Please see Figures 1 to 3The frame welding fixture structure of this embodiment includes a positioning component 1, which includes positioning blocks 11. The positioning blocks 11 act on both sides of the workpiece to be welded to effectively clamp and secure it, facilitating the welding operation. The structure also includes a cooling component 2, which is disposed on the positioning blocks 11 and exchanges heat with the positioning blocks 11. Since the positioning blocks 11 are in direct contact with the workpiece to be welded, the cooling component 2 cools and lowers the temperature of the workpiece through the intermediate action of the positioning blocks 11.

[0020] Furthermore, the structure includes a support block 3 and a worktable 4. The support block 3 is disposed at the bottom of the worktable 4 to support the worktable 4, and the workpiece to be welded is placed on the upper part of the worktable 4 for positioning and welding. The structure also includes a positioning pin 5, one end of which is connected to the support block 3 and passes through the worktable 4 along a first direction. In this embodiment, the first direction is perpendicular to the surface of the worktable 4. The positioning pin 5 is designed to facilitate engagement with the positioning holes of the workpiece to be welded, thereby enhancing the accuracy of positioning.

[0021] Furthermore, the positioning component 1 also includes a cylinder 12, one end of which is connected to a portion of the positioning blocks 11. The portion of the positioning blocks 11 is also disposed on the surface of the worktable 4. In this embodiment, a portion of the positioning blocks 11 is placed inside the welded frame for inner positioning, while a portion of the positioning blocks 11 is positioned outside the welded frame by the action of the cylinder 12. When the positioning blocks 11 inside and outside the frame act on the frame simultaneously, positioning is ensured while also providing a clamping effect.

[0022] Furthermore, the cooling component 2 includes an internal pipe 21 disposed within the positioning block 11. The cooling component 2 also includes an external pipe 22 disposed on both sides of the positioning block 11 and communicating with the internal pipe 21. Coolant is introduced through the external pipe 22 at one end, flows through the internal pipe 21, and then flows out through the external pipe 22 at the other end, thus completing the heat dissipation function for the positioning block 11, preventing the positioning block 11 from deforming or being damaged due to high temperature, and reducing the heat of the frame during the welding process, effectively improving the stability and durability of the welded frame structure.

[0023] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0024] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A frame welding fixture structure, characterized in that: The structure includes a positioning component, which includes a positioning block that acts on both sides of the workpiece to be welded; the structure also includes a cooling component disposed on the positioning block.

2. The frame welding fixture structure as described in claim 1, characterized in that: The structure includes a support block and a worktable, with the support block located at the bottom of the worktable.

3. The frame welding fixture structure as described in claim 2, characterized in that: The structure also includes a positioning pin, one end of which is connected to the support block and passes through the worktable along a first direction.

4. The frame welding fixture structure as described in claim 2, characterized in that: The positioning component also includes a cylinder, one end of which is connected to a portion of the positioning block, and the portion of the positioning block is also disposed on the surface of the worktable.

5. The frame welding fixture structure as described in claim 1, characterized in that: The cooling component includes an internal tube, which is disposed within the positioning block.

6. The frame welding fixture structure as described in claim 5, characterized in that: The cooling component also includes an external pipe, which is disposed on both sides of the positioning block and communicates with the internal pipe.