Universal front flexible wire harness support welding tool

By designing a universal front-end flexible wire harness bracket welding fixture, and adopting a symmetrical structure and suction cup fixation, the injection molding defects and positioning risks caused by wire harness installation were solved, achieving efficient production and cost reduction.

CN119681540BActive Publication Date: 2025-12-19DONGFENG PLASTIC OMNIUM AUTOMOTIVE EXTERIOR SYST CO LTD
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Patent Information

Application Number
CN202411907511.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-12-19
Estimated Expiration
2044-12-24

AI Technical Summary

Technical Problem

Existing technologies are prone to injection molding defects and shrinkage during front harness installation, and adding harness brackets increases costs and poses positioning risks, making it impossible to arrange ribs in the sloping roof structure area.

Method used

A general-purpose welding fixture for front-side flexible wire harness brackets is designed. The welding fixture fixes the wire harness brackets and adopts a symmetrical structure and flexible design. The connection part is fixed by a suction cup and the welding head assembly is used to achieve precise positioning, avoiding the need to add positioning ribs to the surface.

Benefits of technology

It solved the problems of shrinkage and molding of the skin appearance, reduced mold costs and tooling equipment costs, improved production efficiency, avoided the risk of incorrect assembly, and realized platform-based management.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of welding tooling, especially to a universal front protection flexible wire harness support welding tooling, the wire harness support is fixed on the skin through the welding tooling, the wire harness support includes a connecting part connected with the skin and a wire harness clamping rib integrally and vertically arranged on the connecting part, and the welding tooling comprises a tooling frame and a welding head assembly, the tooling frame comprises a horizontal plate, positioning plates are fixed at both ends of the horizontal plate, and a wire harness clamping rib mounting groove is arranged on one side of the positioning plate, the universal front protection flexible wire harness support welding tooling, the wire harness support and the skin do not need any positioning and mistake-proofing design, and the production efficiency is greatly improved and the tooling equipment cost is reduced through the ingenious and simple welding tooling design to install the wire harness support, in addition, the universal flexible support design greatly reduces the mold cost, realizes platformization, avoids the risk of misloading, and improves the factory management efficiency.
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Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding tooling, in particular to a universal front bumper flexible wire harness support welding tooling. BACKGROUND

[0002] Generally, the front bumper wire harness assembly is installed on the front bumper assembly by the wire harness clip, and the clip structure is generally designed on the back of the non-outer surface of the front bumper assembly, but sometimes the clip structure has to be designed on the back of the outer surface due to the structure of the front bumper. The prior art generally directly designs the clip structure on the back of the outer surface or increases a plurality of wire harness supports for wire harness clamping. The disadvantage of this installation method is that directly designing the long clip on the outer surface will cause injection molding defects, and the outer surface will be concave and cause shrinkage. In addition, increasing wire harness supports at different positions will increase the cost, and since the supports need to be positioned with the skin, the positioning clip on the skin will also cause shrinkage risk and product molding problems.

[0003] Therefore, we propose a universal front bumper flexible wire harness support welding tooling to solve the above problems. SUMMARY

[0004] To solve the above technical problems, the present application provides a universal front bumper flexible wire harness support welding tooling.

[0005] The universal front bumper flexible wire harness support welding tooling provided by the present application is fixed on the skin by the welding tooling, the wire harness support includes a connecting part connected with the skin and a wire harness clamping clip integrally and vertically arranged on the connecting part, and includes a tooling frame and a welding head assembly. The tooling frame includes a horizontal plate, both ends of the horizontal plate are fixed with positioning plates, one side of the positioning plate is provided with a wire harness clamping clip mounting groove, and the positioning plates on the same side of the wire harness clamping clip mounting groove are all provided with suction cups for adsorbing the connecting part. The welding head assembly includes a T-shaped connecting rod, both ends of the T-shaped connecting rod are integrally provided with U-shaped welding parts, both ends of the U-shaped welding part are provided with welding surfaces, and the positioning plate is provided with a positioning groove matched with the U-shaped welding part.

[0006] Preferably, the welding surfaces are uniformly provided with cylindrical protrusions.

[0007] Preferably, the tooling frame and the welding head assembly are symmetrical structures up and down and left and right.

[0008] Preferably, the thickness of the connecting part is 1.5 mm.

[0009] Preferably, the wire harness clamping clip mounting groove is provided with a rounded corner at the entrance.

[0010] Preferably, the jig frame further comprises a vertical plate integrally arranged on one side of the middle part of the horizontal plate, and the horizontal plate and the vertical plate form a T-shaped structure.

[0011] Preferably, the U-shaped welding part is a member made of titanium alloy material.

[0012] Compared with the related art, the present application has the following advantages:

[0013] The universal flexible wire harness support and the welding jig are designed to solve the problems of skin appearance shrinkage and molding, the positioning of the wire harness support and the skin is achieved through the welding jig positioning to avoid adding positioning fins on the skin, the wire harness support is designed to be universal and flexible, and the same support can be used in different areas of the skin, the wire harness support is designed to be self-symmetrical structure and error-proofing is achieved through pre-installation positioning of the welding jig, the wire harness support and the skin do not need any positioning and error-proofing design, and the wire harness support is installed through the ingenious and simple welding jig design, which greatly improves the production efficiency and reduces the cost of jig equipment; in addition, the universal flexible support design greatly reduces the mold cost and realizes platformization, and also avoids the risk of misassembly and improves the factory management efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an overall structural explosion schematic diagram of the present application;

[0015] Figure 2 It is a schematic diagram when the skin and the wire harness support are fixed through the jig equipment and then welded;

[0016] Figure 3 It is a cross-sectional structure schematic diagram of the wire harness support of the present application;

[0017] Figure 4 It is a jig frame structure schematic diagram of the present application;

[0018] Figure 5 It is a T-shaped connecting rod structure schematic diagram of the present application;

[0019] Figure 6 It is a cross-sectional schematic diagram of the U-shaped welding part, the positioning plate and the wire harness support after assembly;

[0020] Figure 7 It is an initial state of the welding jig of the present application;

[0021] Figure 8 It is a schematic diagram of the welding jig after the support welding is completed, and the jig is removed.

[0022] The figure mark: 1, wire harness support; 2, connecting part; 3, wire harness clamping rib; 4, tool holder; 5, welding head assembly; 6, cross plate; 7, positioning plate; 8, wire harness clamping rib installation groove; 9, suction cup; 10, T-shaped connecting rod; 11, U-shaped welding part; 12, welding surface; 13, positioning groove; 14, cylindrical protrusion; 15, rounded corner; 16, vertical plate. DETAILED DESCRIPTION

[0023] The application will be further described below in conjunction with the drawings and embodiments.

[0024] Please refer to Figures 1 to 3 A universal front protection flexible wire harness support welding tool design aims to realize the stable installation of the wire harness support 1 on the automobile skin through precise structure arrangement and efficient welding technology. The wire harness support 1 is composed of a connecting part 2 connected with the skin and a wire harness clamping rib 3 vertically fixed on the connecting part 2. This welding tool includes a delicately designed tool holder 4 and a matching welding head assembly 5.

[0025] The core component of the tool holder 4 is a cross plate 6, both ends of which are firmly installed with two positioning plates 7. One side of each positioning plate 7 is provided with a wire harness clamping rib installation groove 8 specially used for accommodating the wire harness clamping rib 3, and suction cups 9 are equipped on the four corners of the same side of the positioning plate 7 where the wire harness clamping rib installation groove 8 is located, to adsorb and fix the connecting part 2. This design of integrating the two positioning plates 7 through the cross plate 6 not only simplifies the equipment structure, but also significantly improves the assembly efficiency.

[0026] The welding head assembly 5 includes a T-shaped connecting rod 10, both ends of which are integrally formed with U-shaped welding parts 11, and each end of the U-shaped welding part 11 is provided with a welding surface 12. The positioning plate 7 is specially designed with a positioning groove 13 matched with the U-shaped welding part 11, which ensures the accurate positioning during welding. By integrating the two U-shaped welding parts 11 into the T-shaped connecting rod 10, a more compact and efficient welding solution is realized, which further simplifies the welding equipment and improves the speed and quality of welding operation.

[0027] In order to enhance the welding effect, the welding surface 12 is uniformly distributed with cylindrical protrusions 14, which can provide better contact area and fusion strength. In addition, the entire tool holder 4 and welding head assembly 5 adopt a symmetrical design concept from top to bottom and left to right, which helps to reduce production cost while ensuring the stability and consistency of operation.

[0028] The connecting part 2 has a standard wall thickness of 1.5 mm, which takes into account the flexibility and sufficient structural strength, and is suitable for the assembly requirements of large curvature surface and meets the specific requirements of wall thickness for welding process. The wire harness clamping rib 3 follows the industry standard design, which ensures good wire harness management function.

[0029] In consideration of the installation convenience, a rounded corner 15 is arranged at the entrance of the wire harness clamping rib mounting slot 8, so that the installation of the wire harness support 1 is more smooth. In addition, the tool holder 4 further comprises a vertical plate 16 vertically arranged at one side of the middle part of the horizontal plate 6, and the two together form a firm T-shaped structure, which enhances the stability of the whole.

[0030] It is worth noting that the U-shaped welding part 11 is made of titanium alloy material, which is known for its excellent heat resistance and mechanical properties, ensuring high quality and long-term reliability of the welding point.

[0031] The specific assembly process is as follows: first, place the skin on the welding tool tire membrane, the welding tool is designed to be rotatable, and the initial state is as shown in Figure 7 , then place the wire harness support 1 on the profiling tool and suck it with the suction cup 9, then rotate the tool, and then weld.

[0032] The profiling tool has a positioning gap of 0.2mm designed by the wire harness clamping rib, because the shape of the wire harness clamping rib 3 determines that the wire harness support 1 can only be assembled in one direction, and because the connecting part 2 is a self-symmetrical structure, there is no need for error prevention, and because the skin is fixed on the tool tire membrane, the relative position of the wire harness support 1 and the skin is uniquely determined, which plays the role of tool positioning and error prevention; The four suction cups 9 suck the wire harness support 1 to prevent the support from falling during tool rotation. In order to make the support size reach the limit while meeting the pulling force requirement after welding, the welding head (U-shaped welding part 11) is designed in the tool hollow avoidance place, the welding head (U-shaped welding part 11) size 20mm*10mm just meets the pulling force requirement after welding, the diameter 10mm suction cup 9 is also the smallest size that can suck the connecting part 2, the minimum gap between the welding head (U-shaped welding part 11) and the tool holder 4 is 1mm, which prevents the suction cup 9 from leaking and leaves a 1mm gap between the suction cup 9 and the edge of the connecting part 2, so the minimum size of the support is 1+10+1+20+1+10+1=44mm, so 44*44mm is the limit size of the connecting part 2.

[0033] In addition, as shown in Figure 8 , after the welding of the wire harness support 1 is completed, two actions are needed to exit, the first step is to translate along the wire harness support 1 assembly direction, that is, the normal direction of the large face of the wire harness support 1, and then the second step is to rotate out when the tool is completely separated from the wire harness clamping rib 3, then the product is taken out, if there is no translation action and directly rotates, the tool will interfere with the wire harness clamping rib and cannot be taken out.

[0034] The above merely illustrates the embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process conversion, or direct or indirect application in other related technical fields, which is made according to the content of the present application, shall be included in the patent protection scope of the present application.

Claims

1. A universal front flexible wire harness support welding tool, the wire harness support (1) is fixed on the skin through the welding tool, the wire harness support (1) comprises a connecting part (2) connected with the skin and a wire harness clamping rib (3) integrally and vertically arranged on the connecting part (2), characterized in that, The utility model relates to a welding head assembly (5) and tooling jig (4), the tooling jig (4) includes cross plate (6), both ends of cross plate (6) are fixed with positioning plate (7), one side of positioning plate (7) is equipped with wire harness clamping rib mounting groove (8), positioning plate (7) is installed with the suction disc (9) for adsorbing connecting portion (2) in wire harness clamping rib mounting groove (8) the same side four corners, the welding head assembly (5) includes T type connecting rod (10), both ends of T type connecting rod (10) are integrally provided with U type welding portion (11), both ends of U type welding portion (11) are equipped with welding surface (12), and the positioning groove (13) that is equipped with with U type welding portion (11) cooperation is located on positioning plate (7).

2. The universal front flexible wire harness support welding fixture of claim 1, wherein, The welding surface (12) is uniformly provided with a cylindrical protrusion (14).

3. The universal front flexible wire harness support welding fixture of claim 1, wherein, The tooling jig (4) and the welding head assembly (5) are symmetrical structures up and down and left and right.

4. The universal front flexible wire harness support welding fixture of claim 1, wherein, The thickness of the connecting portion (2) is 1.5mm.

5. The universal front flexible wire harness support welding fixture of claim 1, wherein, The wire harness clamping rib mounting groove (8) is provided with a rounded corner (15) at the entrance.

6. The universal front flexible wire harness support welding fixture of claim 1, wherein, The tooling jig (4) further comprises a vertical plate (16) integrally arranged on one side of the middle part of the cross plate (6), and the cross plate (6) and the vertical plate (16) form a T-shaped structure.

7. The universal front flexible wire harness support welding fixture of claim 1, wherein, The U type welding portion (11) is a titanium alloy material member.

Citation Information

Patent Citations

  • Wire harness support welds frock

    CN205096780U

  • Wire harness welding tool

    CN211759328U