Welding jig capable of preventing dislocation welding loss

By designing a welding fixture that prevents misalignment welding losses, using limit grooves and avoidance port structures, the problems of misalignment and welding liquid splashing in the welding process of small electronic module welding parts are solved, and the welding quality and function of efficiently protecting the surrounding parts is achieved.

CN223160336UActive Publication Date: 2025-07-29BENCHMARK ELECTRONICS SUZHOU
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Patent Information

Application Number
CN202421646257.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-07-29
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

Small electronic module welding parts are prone to misalignment during welding, resulting in damage to surrounding parts, and high temperatures of welding and splashing of welding liquid may damage surrounding parts, affecting welding quality and function.

Method used

Design a welding fixture that prevents misalignment welding losses, adopts a die and a gland structure, a limit groove and a barrier port are used to protect the surrounding parts with a flexible barrier ring to prevent misalignment and welding liquid from splashing.

Benefits of technology

Effectively prevent welding misalignment and welding liquid splashing, protect surrounding parts, ensure welding quality and function, and improve welding efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223160336U_ABST
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Abstract

The utility model discloses a welding jig for preventing dislocation welding loss, which comprises a female die and a gland, the female die is provided with a limit groove matched with a to-be-welded component, the gland compresses the to-be-welded component in the limit groove, the gland is hinged with one side edge of the female die, and the other side edge of the female die is hinged with the gland. An avoiding opening is formed in the position, corresponding to a welding area on the to-be-welded assembly, of the gland; and a flexible baffle ring is arranged along the outline of the avoiding opening. The welding fixture is used for clamping and fixing a to-be-welded assembly, protecting parts which do not need to be welded, and avoiding damage caused by dislocation welding.
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Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, in particular to a welding jig for preventing misalignment and welding damage. Background Art

[0002] For some small electronic module weldments, such as Op panel modules, local part welding processes need to be carried out. Due to their small structure, it is difficult to ensure fixation during the welding process. If movement occurs, it may cause welding misalignment and damage to surrounding parts. Moreover, during the welding process, the high temperature generated and the splash of welding fluid may also damage the surrounding parts, affecting the quality and function of the welded finished product. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the utility model provides a welding jig for preventing misalignment and welding damage, which clamps and fixes the component to be welded and protects the parts that do not need to be welded to avoid damage caused by misaligned welding.

[0004] Technical Solution: To achieve the above object, a welding jig for preventing misalignment and welding damage of the utility model includes a female die and a pressing cover. The female die is provided with a limiting groove adapted to the component to be welded. The pressing cover presses the component to be welded in the limiting groove. The pressing cover is hinged to one side edge of the female die. The pressing cover is provided with an avoidance opening corresponding to the welding area on the component to be welded; a flexible retaining ring is arranged along the contour of the avoidance opening.

[0005] Further, a plurality of the limiting grooves are arranged in a row on the female die, and a plurality of the avoidance openings are provided on the pressing cover corresponding to the plurality of the limiting grooves.

[0006] Further, positioning screws are arranged in the limiting groove, and the two positioning screws are respectively in limit fit with the two side bayonets of the component to be welded.

[0007] Further, elastic cushion strips are arranged in the limiting groove, and the elastic cushion strips are padded on the bottom sides of the two opposite edges of the component to be welded.

[0008] Further, avoidance grooves are respectively arranged on the two opposite sides of the bottom of the limiting groove.

[0009] Further, positioning columns are arranged on the upper end surface of the female die, waist-shaped holes corresponding to the positioning columns are arranged on the pressing cover, the waist-shaped holes extend along the flipping direction of the pressing cover, and positioning holes adapted to the positioning screws are arranged on the pressing cover.

[0010] Beneficial effects: A welding jig for preventing misalignment and welding damage according to the present utility model limits the component to be welded through the female die, and clamps the component to be welded by cooperating the pressing cover with the female die, avoiding misalignment and welding damage caused by the displacement of the component to be welded. A relief opening is provided on the pressing cover for welding in the area to be welded, and the surrounding parts are shielded and protected by the pressing cover, avoiding welding damage to the surrounding parts due to operation errors. A flexible retaining ring is used to shield the gap between the pressing cover and the component to be welded, playing a role in heat insulation and blocking the splashing of welding fluid, further protecting the surrounding parts and ensuring the welding quality and function. Brief Description of the Drawings

[0011] Appendix Figure 1 It is a schematic structural diagram after the pressing cover is pressed in an embodiment of the present utility model;

[0012] Appendix Figure 2 It is a schematic structural diagram of the female die in an embodiment of the present utility model;

[0013] Appendix Figure 3 It is an enlarged schematic cross-sectional structure diagram at the relief opening in an embodiment of the present utility model. Specific Embodiment

[0014] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0015] As described in the appendix Figures 1-3 A welding jig for preventing misalignment and welding damage includes a female die 1 and a pressing cover 2. The female die 1 is provided with a limiting groove 11 adapted to the component 3 to be welded. The pressing cover 2 presses the component 3 to be welded in the limiting groove 11. One side edge of the pressing cover 2 is hinged to the female die 1. A relief opening 21 is provided on the pressing cover 2 corresponding to the welding area on the component 3 to be welded. A flexible retaining ring 4 is arranged along the contour of the relief opening 21.

[0016] This solution restricts the horizontal movement of the component to be welded through the limiting groove 11, and then uses the gland to cooperate and press tightly to fix the component to be welded, avoiding the displacement of the component to be welded during the welding process, resulting in misaligned welding and damage to surrounding parts. By providing an avoidance opening on the gland, only the area to be welded is exposed in the avoidance opening, and the surrounding parts are covered and protected by the gland, avoiding damage to surrounding parts during the welding process. By providing a flexible retaining ring on the contour of the avoidance opening, it fits on the surface of the component to be welded, which can isolate the heat generated by welding from spreading to the surrounding area and reduce the damage of high temperature to surrounding parts. Protected by the gland and the flexible retaining ring, the splashed welding liquid is also difficult to contact with surrounding parts and cause damage, effectively protecting the quality and function of the product. Among them, the flexible retaining ring is made of heat-insulating and flame-retardant material, and high-silica self-adhesive tape can be used. It is directly pasted around the edge of the avoidance opening for one week, and after the gland is pressed, half of its width direction adheres to the surface of the component to be welded, used to block the gap between the gland and the surface of the component to be welded, forming a sloping shielding barrier. Utilizing the fireproof and flame-retardant characteristics of the high-silica self-adhesive tape, it plays a role in isolating heat and damage caused by splashing of welding liquid, and further protects surrounding parts.

[0017] Adopting a hinged connection relationship is convenient for maintaining the relative position relationship between the female die and the gland, and the pressing and clamping operation is simple, which is beneficial to improving the welding efficiency and ensuring that the avoidance opening can always accurately correspond to the area to be welded to achieve the expected protection effect.

[0018] Preferably, a plurality of the limiting grooves 11 are arranged in the female die 1, and a plurality of the avoidance openings 21 corresponding to the plurality of the limiting grooves 11 are provided on the gland 2. Each time, multiple products of the component to be welded can be placed into the female die at the same time, and then the gland is used to press multiple products tightly at the same time, and then welded sequentially or simultaneously, effectively improving the welding efficiency and ensuring the quality of the products.

[0019] Positioning screws 12 are arranged in the limiting groove 11, and the two positioning screws 12 are respectively in limit fit with the clamping openings on both sides of the component to be welded 3. When the component to be welded is placed into the limiting groove, the relative position relationship between the component to be welded and the limiting groove is initially restricted by the positioning screws, avoiding the placed component being separated from the embedded groove under the influence of external force before the gland is pressed tightly.

[0020] Elastic cushion strips 13 are arranged in the limiting groove 11, and the elastic cushion strips 13 are padded on the bottom sides of two opposite edges of the component to be welded 3. By providing the elastic cushion strips, the component to be welded is elastically clamped. On the premise of achieving the fixing effect, the component to be welded is avoided from being damaged by clamping, and through the support of the elastic cushion strips, the component to be welded is lifted up to fit the bottom side of the gland, avoiding loosening and generating a gap between the gland and the component to be welded, and improving the protection effect of the gland.

[0021] Avoidance grooves 14 are respectively arranged on two opposite sides of the bottom of the limiting groove 11. By providing the avoidance grooves, it is beneficial to pick and place the components to be welded, and avoid damage caused by inconvenient operation during the installation and picking process.

[0022] A positioning post 15 is arranged on the upper end surface of the female die 1, a waist-shaped hole 22 corresponding to the positioning post 15 is arranged on the pressing cover 2, the waist-shaped hole 22 extends along the flipping direction of the pressing cover 2, and a positioning hole 23 adapted to the positioning screw 12 is arranged on the pressing cover 2. When the pressing cover is flipped and covered with the female die, by making the positioning post cooperate with the waist-shaped hole, it is ensured that the pressing cover is axially constrained and limited in its hinge axis, preventing the loosening of the hinge joint from causing the misalignment of the avoidance opening after pressing. After pressing, the positioning hole and the positioning screw are aligned and matched to ensure that the avoidance opening and the welding area are completely corresponding.

[0023] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A welding jig for preventing misalignment and welding damage, characterized in that: It includes a female die (1) and a gland (2). The female die (1) is provided with a limiting groove (11) adapted to the component to be welded (3). The gland (2) presses the component to be welded (3) in the limiting groove (11). The gland (2) is hinged to one side edge of the female die (1). The gland (2) is provided with an avoidance opening (21) corresponding to the welding area on the component to be welded (3); a flexible retaining ring (4) is arranged along the contour of the avoidance opening (21).

2. The welding jig for preventing misalignment and welding damage according to claim 1, characterized in that: A plurality of the limiting grooves (11) are arranged in a row on the female die (1), and a plurality of the avoidance openings (21) are provided on the gland (2) corresponding to the plurality of the limiting grooves (11).

3. The welding jig for preventing misalignment and welding damage according to claim 2, characterized in that: Positioning screws (12) are arranged in the limiting groove (11), and the two positioning screws (12) are respectively in limit fit with the two side bayonets of the component to be welded (3).

4. The welding jig for preventing misalignment and welding damage according to claim 3, characterized in that: An elastic gasket strip (13) is arranged in the limiting groove (11), and the elastic gasket strip (13) is padded on the bottom sides of the two opposite edges of the component to be welded (3).

5. The welding jig for preventing misalignment and welding damage according to claim 4, characterized in that: Avoidance grooves (14) are respectively arranged on the two opposite sides of the bottom of the limiting groove (11).

6. The welding jig for preventing misalignment and welding damage according to claim 5, characterized in that: A positioning post (15) is arranged on the upper end surface of the female die (1), and a kidney-shaped hole (22) corresponding to the positioning post (15) is arranged on the gland (2). The kidney-shaped hole (22) extends along the flipping direction of the gland (2), and a positioning hole (23) adapted to the positioning screw (12) is arranged on the gland (2).