Welding structure of interior trim part and tool of welding structure

Abstract

The utility model relates to the technical field of automobile parts, in particular to a welding structure of an interior trim part and a tool thereof, which comprises a light-transmitting material and a non-light-transmitting material, the light-transmitting material is positioned on the inner side of the non-light-transmitting material, a coating structure is arranged at the end part of the non-light-transmitting material, and the surface of the coating structure comprises a light-transmitting gap. The wrapping structure wraps the edge of the end of the light-transmitting material, and the light-transmitting gap covers the middle area of the end of the light-transmitting material. Compared with the prior art, the welding structure of the interior trim part and the tool of the welding structure are designed, the end portion of the light-transmitting material is wrapped in the non-light-transmitting material, the arrangement of the light-transmitting gap is combined, light-transmitting paths are gathered, light leakage is avoided, and the decoration effect of the interior trim part is improved; through the improvement of the welding tool, craters are prevented from being formed on the surface of the light-transmitting material, and the problem that the craters integrally emit light is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile accessories, in particular to a welding structure of an interior decoration part and a tooling thereof. Background Art

[0002] In some automotive interior parts, it is necessary to realize the light transmission function. Figure 1 As shown, this type of interior product is composed of an outer layer of non-light-transmitting material 2 and an inner layer of light-transmitting material 1. The inner layer of light-transmitting material 1 facilitates light penetration, and the outer layer of non-light-transmitting material 2 prevents light leakage.

[0003] In the actual production process, the end surface of the light-transmitting material 1 is heat-riveted to deform it, thereby completing the fixation between the non-light-transmitting material 2 and the light-transmitting material 1. Figure 2 As shown, the bottom of the rivet head 3 is a planar structure. During hot riveting, the bottom of the rivet head 3 directly acts on the end face of the light-transmitting material 1 and forms a light-transmitting weld scar, and the end face size of the weld scar is usually larger than the original cross-sectional size. When light penetrates the light-transmitting material 1, the weld scar emits light as a whole, and the light transmission path 4 is scattered. After assembly is completed, light leakage occurs at the assembly gap, affecting the decorative effect of the interior decoration.

[0004] Therefore, it is necessary to design a welding structure and tooling for interior decoration parts to solve the problem of overall luminescence of welding scars, while concentrating the light transmission path and preventing light leakage, thereby improving the decorative effect of interior decoration parts. Summary of the invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a welding structure and tooling for interior decoration parts, which solves the problem of overall luminescence of welding scars and at the same time enables the light transmission path to be concentrated and light is not leaked, thereby improving the decorative effect of the interior decoration parts.

[0006] In order to achieve the above-mentioned purpose, the utility model designs a welding structure of an interior decoration part, including a light-transmitting material and a non-light-transmitting material. The light-transmitting material is located on the inner side of the non-light-transmitting material. A covering structure is provided at the end of the non-light-transmitting material. The surface of the covering structure includes a light-transmitting gap. The covering structure is wrapped around the end edge of the light-transmitting material. The light-transmitting gap covers the middle area of ​​the end of the light-transmitting material.

[0007] The height of the non-light-transmitting material is higher than that of the light-transmitting material.

[0008] The contact area between the non-light-transmitting material and the light-transmitting material in the molten state is more than 10% of the total area.

[0009] The non-light-transmitting material and the covering structure are an integrated structure or a split structure.

[0010] The light-transmitting gap is arranged in the extension direction of the light-transmitting path of the light-transmitting material.

[0011] The utility model designs a tooling for the welding structure of an interior decoration part. A boss is provided at the bottom of a rivet head, and a cavity for accommodating the covering structure is provided between the boss and the edge of the rivet head. During hot riveting, the boss abuts against the end of the light-transmitting material, and the inner surface of the cavity abuts against the outer surface of the non-light-transmitting material.

[0012] The shape of the boss matches the shape of the light-transmitting gap.

[0013] The shape of the cavity matches the shape of the coating structure.

[0014] The inner surface of the cavity is provided with an inner fillet.

[0015] The number of the rivet heads is one or more.

[0016] Compared with the prior art, the utility model designs a welding structure and tooling of interior decoration parts, wraps the end of the light-transmitting material in the non-light-transmitting material, and combines the setting of the light-transmitting gap to gather the light-transmitting path without light leakage, thereby improving the decorative effect of the interior decoration parts; the improvement of the welding tooling avoids the formation of welding scars on the surface of the light-transmitting material and solves the problem of the overall luminescence of the welding scars. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the welding structure of the interior decoration parts in the prior art.

[0018] Figure 2 This is an axonometric diagram of a welding tool in the prior art.

[0019] Figure 3 This is a cross-sectional view of the welding structure of the interior decoration part in the first embodiment of the present utility model.

[0020] Figure 4 This is an axonometric view of the welding tool in the first embodiment of the utility model.

[0021] Figure 5 This is a bottom view of the welding tool in the first embodiment of the utility model.

[0022] Figure 6 This is a schematic diagram of a light-transmitting material and a non-light-transmitting material before hot riveting welding in Embodiment 1 of the present invention.

[0023] Figure 7 This is a schematic diagram of a light-transmitting material and a non-light-transmitting material after heat riveting welding in Embodiment 1 of the present invention.

[0024] Figure 8 This is a cross-sectional view of the welding tool, the light-transmitting material, and the non-light-transmitting material before hot riveting welding in the first embodiment of the present utility model.

[0025] Fig. 9 This is a cross-sectional view of the welding tool, the light-transmitting material and the non-light-transmitting material during the hot riveting welding process in the first embodiment of the present utility model.

[0026] Fig.10 This is a cross-sectional view of the welding tool, the light-transmitting material and the non-light-transmitting material after hot riveting welding in the first embodiment of the present utility model.

[0027] Fig.11 This is a schematic diagram of a double-layer welded structure of an interior decoration part installed on a door panel in Embodiment 1 of the present invention.

[0028] Fig.12 This is an axonometric view of the welding tool in the second embodiment of the present utility model.

[0029] Fig.13 This is a bottom view of the welding tool in the second embodiment of the utility model.

[0030] Fig.14 This is a schematic diagram of a light-transmitting material and a non-light-transmitting material before hot riveting welding in the second embodiment of the present invention.

[0031] Fig.15 This is a schematic diagram of a light-transmitting material and a non-light-transmitting material after heat riveting welding in the second embodiment of the present utility model.

[0032] Fig.16 This is a schematic diagram of an “S”-shaped light-transmitting gap in Embodiment 3 of the present utility model.

[0033] Fig.17 This is a schematic diagram of a “T”-shaped light-transmitting gap in Embodiment 3 of the present utility model.

[0034] Fig.18 This is a schematic diagram of a “U”-shaped light-transmitting gap in Embodiment 3 of the present utility model. DETAILED DESCRIPTION

[0035] The utility model is now further described with reference to the accompanying drawings. Example

[0036] See also Figure 3 The utility model designs a welding structure of an interior decoration part including a light-transmitting material and a non-light-transmitting material. The light-transmitting material 1 is located on the inner side of the non-light-transmitting material 2. A covering structure 21 is provided at the end of the non-light-transmitting material 2. The covering structure 21 is provided with an inward fold. The surface of the covering structure 21 includes a light-transmitting gap 22. The covering structure 21 is wrapped around the end edge of the light-transmitting material 1, and the light-transmitting gap 22 covers the middle area of ​​the end of the light-transmitting material 1.

[0037] The height of the non-light-transmitting material 2 is higher than that of the light-transmitting material 1 , so that the covering structure 21 at the end of the non-light-transmitting material 2 can better wrap the light-transmitting material 1 .

[0038] The contact area between the non-light-transmitting material 2 and the light-transmitting material 1 in the molten state is more than 10% of the total area to ensure the connection strength between the non-light-transmitting material 2 and the light-transmitting material 1 after hot riveting. The contact area refers to the contact area between the lower surface of the non-light-transmitting material 2 and the upper surface of the light-transmitting material 1, and the contact refers to the close fit or fusion after welding.

[0039] The non-light-transmitting material 2 and the covering structure 21 are an integrated structure or a split structure to meet different application scenarios and adapt to different processing conditions.

[0040] The light-transmitting gap 22 is arranged in the extension direction of the light-transmitting path 4 of the light-transmitting material 1 , and the position of the light-transmitting gap 22 can be set according to the light-transmitting path 4 of the light, so that the light-transmitting path 4 is gathered without light leakage, thereby achieving the designed light-transmitting effect.

[0041] See also Figure 4 , Figure 5 The utility model designs a tooling for the welding structure of an interior decoration part. A boss 31 is provided at the bottom of the rivet head 3, and a cavity 33 for accommodating the covering structure 21 is provided between the boss 31 and the edge 32 of the rivet head. During hot riveting, the boss 31 abuts against the end of the light-transmitting material 1, and the inner surface of the cavity 33 abuts against the outer surface of the non-light-transmitting material 2.

[0042] The volume of the cavity 33 of the rivet head 3 needs to be designed according to the total volume of the light-transmitting material 1 and the non-light-transmitting material 2 in a 100% ratio.

[0043] The inner surface of the cavity 33 is provided with an inner fillet, and the inner fillet guides the non-light-transmitting material 2 to form a coating on the light-transmitting material 1 after melting, so as to realize the material flow guiding function.

[0044] The shape of the boss 31 matches the shape of the light-transmitting gap 22. The shape of the cavity 33 matches the shape of the coating structure 21. Figure 6 The cross-sections of the light-transmitting material 1 and the non-light-transmitting material 2 are circular, the boss 31 is circular, and the cavity 33 is a circular ring structure. Figure 7 After hot riveting, the boss 31 forms a circular light-transmitting gap 22 on the surface of the non-light-transmitting material 2, and the cavity 33 shapes the covering structure 21 at the end of the non-light-transmitting material 2 into a circular ring structure.

[0045] In the utility model, before the rivet head 3 is used to perform heat riveting welding on the light-transmitting material 1 and the non-light-transmitting material 2, Figure 8 As shown, the light-transmitting material 1 is located inside the non-light-transmitting material 2, and the non-light-transmitting material 2 is higher than the light-transmitting material 1. Fig. 9As shown, the rivet head 3 is pressed down, and the boss 31 contacts the end of the light-transmitting material 1. Then, the non-light-transmitting material 2 in the cavity 33 begins to melt and gradually forms a coating structure 21 that wraps the light-transmitting material 1. Fig.10 As shown, as the rivet head 3 continues to press downward, the rivet head 3 further fuses the light-transmitting material 1 and the non-light-transmitting material 2, and finally forms a double-layer welded structure of the interior decoration component in which the light-transmitting material 1 is wrapped by the non-light-transmitting material 2.

[0046] There are one or more rivet heads 3, and the hot riveting welding process is one-step welding or multi-step welding. For example, in one-step welding, there is only one rivet head 3, and the process is completed in one step. Figures 8 to 10 The hot riveting welding process; in two-step welding, the rivet head 3 is two, and one rivet head 3 is used to complete the Figure 8 to Figure 9 The first step of welding is completed with another rivet head 3 Figure 9 to Figure 10 The second step of welding.

[0047] See also Fig.11 The double-layer welded structure 5 of the interior decoration after hot riveting is installed on the door panel 6 of the car. Similarly, it can also be installed in places such as seams, dashboards, center consoles, etc. where the light transmission effect of the light needs to be achieved according to the interior design of the car.

[0048] Embodiment 2: This embodiment only describes the differences from the previous embodiment, and the same parts will not be repeated.

[0049] In this embodiment, see Fig.14 The cross-sections of the light-transmitting material 1 and the non-light-transmitting material 2 are long strips, see Fig.12 , Fig.13 , the boss 31 is a long strip, and the cavity 33 is a long strip annular structure. Fig.15 After hot riveting, the boss 31 forms a long strip of light-transmitting gap 22 on the surface of the non-light-transmitting material 2, and the cavity 33 shapes the covering structure 21 at the end of the non-light-transmitting material 2 into a long strip of ring structure.

[0050] Embodiment 3: This embodiment only describes the differences from the previous embodiments, and the same parts will not be repeated.

[0051] See also Fig.16 , Fig.17 and Fig.18 In order to meet different decorative effects, the light-transmitting gap 22 can be designed into different shapes such as "S" shape, "T" shape, "U" shape, etc. to meet the interior requirements of the car.

[0052] The utility model designs a welding structure and tooling for interior decoration parts, wraps the end of the light-transmitting material in the non-light-transmitting material, and combines the setting of the light-transmitting gap to gather the light-transmitting path without light leakage, thereby improving the decorative effect of the interior decoration parts; the improvement of the welding tooling avoids the formation of welding scars on the surface of the light-transmitting material and solves the problem of the overall luminescence of the welding scars.

Claims

1. A welding structure of an interior decoration part, comprising a light-transmitting material and a non-light-transmitting material, characterized in that: The light-transmitting material (1) is located inside the non-light-transmitting material (2); a covering structure (21) is provided at the end of the non-light-transmitting material (2); a surface of the covering structure (21) includes a light-transmitting gap (22); the covering structure (21) is wrapped around the edge of the end of the light-transmitting material (1); and the light-transmitting gap (22) covers the middle area of ​​the end of the light-transmitting material (1).

2. The welding structure of an interior decoration part according to claim 1, characterized in that: The height of the non-light-transmitting material (2) is higher than the height of the light-transmitting material (1).

3. The welding structure of an interior decoration part according to claim 1, characterized in that: The contact area between the non-light-transmitting material (2) and the light-transmitting material (1) in the molten state is more than 10% of the total area.

4. The welding structure of an interior decoration part according to claim 1, characterized in that: The non-light-transmissive material (2) and the covering structure (21) are an integrated structure or a split structure.

5. The welding structure of an interior decoration part according to claim 1, characterized in that: The light-transmitting gap (22) is arranged in the extension direction of the light-transmitting path (4) of the light-transmitting material (1).

6. A tooling for welding structure of interior decoration parts as claimed in claim 1, characterized in that: A boss (31) is provided at the bottom of the rivet head (3), and a cavity (33) for accommodating the covering structure (21) is provided between the boss (31) and the edge (32) of the rivet head. During hot riveting, the boss (31) abuts against the end of the light-transmitting material (1), and the inner surface of the cavity (33) abuts against the outer surface of the non-light-transmitting material (2).

7. The tooling for welding structure of interior decoration parts according to claim 6, characterized in that: The shape of the boss (31) matches the shape of the light-transmitting gap (22).

8. The tooling for welding structure of interior decoration parts according to claim 6, characterized in that: The shape of the mold cavity (33) matches the shape of the coating structure (21).

9. The tooling for welding structure of interior decoration parts according to claim 6, characterized in that: The inner surface of the cavity (33) is provided with an inner fillet.

10. The tooling for welding structure of interior decoration parts according to claim 6, characterized in that: The rivet head (3) is one or more.

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