CN105752161B - The production method of vehicle exterior cladding element and automobile and vehicle exterior cladding element - Google Patents

Abstract

The invention discloses a method of making an automotive exterior cover, comprising: forming a composite laminated exterior panel having a covering body and a flange at a boundary of the covering body, and, The flanging is warped toward one side of the covering main body; the flanging is trimmed to a predetermined warping height; the outer side of the flanging facing away from the covering main body is polished to form a rounded corner; a composite material layer is formed pressing the inner panel; bonding the composite material laminated inner panel to the covering body of the composite material laminated outer panel at the side where the flange is raised. The invention also discloses an automobile outer cover formed by the above manufacturing method, and an automobile including the automobile outer cover. Adoption of the present invention improves the quality stability of the outer cover.

Description

Automobile exterior panel, automobile and method for manufacturing the automobile exterior panel

technical field

The invention relates to automobile manufacturing technology, in particular to an automobile outer covering and a manufacturing method of the automobile and the automobile outer covering.

Background technique

Automobile panels often use laminates made of continuous fiber reinforced composite materials (such as carbon fiber). Due to the characteristics of the material and the characteristics of the molding process, they cannot be assembled by folding the inner and outer panels like the traditional sheet metal panels. The general method is to glue the inner and outer panels. Then, the edge forms a straight edge, which cannot meet the requirements of the shape. In order to achieve edge rounding, the general method is to achieve it by grinding after bonding the inner and outer plates, but the efficiency is low and the quality stability is poor. And for the covering parts that require the outer panel to be exposed, the continuity of the rounded corners in the visible area cannot be guaranteed.

Contents of the invention

One embodiment of the present invention provides a manufacturing method of an automobile outer cover, which improves the quality stability of the outer cover. And, the preparation method includes:

forming a composite laminate outer panel having a cover body and a cuff at a boundary of the cover body, wherein the cuff is turned up to one side of the cover body;

trimming the flanging to a predetermined raised height;

Grinding the outer side of the flange facing away from the covering body to form rounded corners;

forming a composite laminate inner panel;

bonding the composite material laminated inner panel to the covering main body of the composite material laminated outer panel on the raised side of the flange, and making the composite material laminated inner panel close to the flange One side edge of the edge and the flange form an edge-wrapping fillet of the automobile outer cover.

Optionally, in the above embodiment, the inclination angle of the flange relative to the covering body is not less than 90 degrees.

Optionally, in the above embodiment, the manufacturing method further fills material between the edge of the composite material laminate inner panel close to the flange and the flange.

Optionally, in the above embodiment, the manufacturing method further chamfers the edge of the side edge of the composite material laminated inner panel close to the flange into a shape suitable for the flange, and bonds it to the flange. Said flanging.

Optionally, in the above embodiment, the manufacturing method utilizes a rounding tool to grind the corners to form the rounded corners.

Another embodiment of the present invention provides an automobile outer cover, which is formed by the method in the above-mentioned embodiment.

Yet another embodiment of the present invention provides an automobile comprising the automobile outer covering in the above-mentioned embodiment.

According to the above-mentioned embodiments, the composite material laminated outer panel is provided with flanging, and the edge of the composite material laminated inner panel is wrapped inside by the composite material laminated outer panel's flanging, so that the rounded corners of the automobile panel are realized. . Thereby, the quality stability of the automobile outer covering is improved, and for the automobile covering which requires exposure of the composite material laminated outer panel, the continuity of the fillet in the visible area can be ensured.

Description of drawings

The following drawings only illustrate and explain the present invention schematically, and do not limit the scope of the present invention.

Fig. 1 is a schematic flowchart of a method for manufacturing an automobile outer cover provided by an embodiment of the present invention.

Fig. 2a to Fig. 2e are specific partial structural diagrams for forming an automobile outer cover according to Embodiment 1 of the present invention.

Fig. 3 is a side view of an automobile outer cover according to an embodiment of the present invention.

Fig. 4 is a sectional view of an automobile outer cover according to Embodiment 2 of the present invention.

Label description

21 composite laminate exterior panels

210 Overlay body

211, 211’, 211” Flange

22, 22’ Composite Laminated Inner Panels

23 materials

24, 24' Adhesive

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

In this article, "schematic" means "serving as an example, example or illustration", and any illustration or implementation described as "schematic" should not be interpreted as a more preferred or more advantageous Technical solutions.

In order to make the drawings concise, the figures in each figure only schematically show the relevant parts of the present invention, and do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components having the same structure or function is schematically shown, or only one of them is marked.

In this article, "upper", "lower", "front", "rear", "left", "right", etc. are only used to indicate the relative positional relationship between related parts, rather than to limit the absolute position of these related parts .

In this article, "first", "second", etc. are only used to distinguish each other, not to indicate the degree of importance and order, or the prerequisite for mutual existence.

Herein, "equal", "identical" and the like are not strictly restricted in the sense of mathematics and/or geometry, but also include errors understandable by those skilled in the art and allowed in manufacture or use. Unless otherwise stated, a numerical range herein includes not only the entire range within its two endpoints, but also several subranges subsumed therein.

In the prior art, in order to achieve edge fillets, the inner and outer panels are bonded and then polished. After grinding, the inner and outer panels are exposed to the outside, which is very unsightly. The methods in the prior art have low efficiency and poor quality stability. And for the covering parts that require the outer panel to be exposed, the continuity of the rounded corners in the visible area cannot be guaranteed. Through the manufacturing method of the automobile outer cover of the present invention, the outer panel is provided with flanging, and the edge of the inner panel is wrapped inside by the outer panel flanging, so that the rounded corners of the automobile cover are realized.

Fig. 1 is a schematic flow chart of a manufacturing method of an automobile outer cover provided by an embodiment of the present invention, which includes the following steps, the method including:

Step 11, forming a composite material laminated outer panel, the composite material laminated outer panel has a covering body and a flange located at the boundary of the covering body, and the flange is warped toward one side of the covering body.

Among them, it can be understood that the boundary forming the flanging is the boundary that is predetermined to form rounded corners, and the flanging angle should meet the requirements of the drawing direction. If the flanging angle is too small, the outer panel cannot be pulled out from the outer panel mold . Therefore, it is required that the inclination angle of the flange relative to the covering body is not less than 90 degrees.

Step 12, trimming the flanging to a predetermined lift height;

Among them, the function of the flanging is to form the rounded edge of the automobile outer cover through the subsequent process. Therefore, the predetermined lifting height mentioned here can be understood as the height satisfying the thickness dimension of the edge. Also, the trimming of the flanging can be realized by machining.

Step 13, grinding the outer side of the flange facing away from the covering body to form rounded corners;

In this step, preferably, the manufacturing method can use a specific tool (such as a rounding tool) to grind and form the rounded corners.

Step 14, forming a composite material laminated inner panel;

Step 15, bonding the composite material laminated inner panel to the covering body of the composite material laminated outer panel on the side where the flange is raised, and making the edge of the composite material laminated inner panel close to the flange and the flange The edge forms the hemming fillet of the automotive exterior panel.

In one embodiment, the manufacturing method can be filled with materials between the edge of the composite material laminated inner panel close to the flange and the flange, so as to avoid the A broken seam appears between the side edge and the flange, so that the edge of the side edge of the composite material laminated inner panel close to the flange and the flange formed by the flange are smooth and continuous.

In another embodiment, also in order to fillet the edge formed by the flange and the composite material laminated inner panel, the manufacturing method may be by beveling the edge of the composite material laminated inner panel close to the flange Cutting into a shape suitable for the flange and bonding to the flange, so that the side edge of the composite material laminated inner panel close to the flange and the flange form the edge wrapping fillet of the automobile outer cover.

The two embodiments are respectively described in detail below.

Embodiment one

Please see Figures 2a to 2e.

A composite laminated outer panel 21 is formed, as shown in Figure 2a. The composite material laminated outer panel 21 has a cover main body 210 and a cuff 211 at a boundary of the cover main body 210 , and the cuff 211 is turned toward one side of the cover main body 210 .

The flanging 211 is trimmed to a predetermined lift height, and the trimmed flanging 211' is shown in Figure 2b.

The outer side of the flange 211' facing away from the covering body 210 is ground to form rounded corners, and the flange 211" after grinding is shown in Figure 2c.

A composite laminate inner panel 22 is formed.

The composite material laminated inner panel 22 is bonded to the covering body 210 of the composite material laminated outer panel 21 at the turned side of the flange 211 ″, as shown in FIG. 2 d .

By filling the material 23 between the side edge of the composite material laminated inner panel 22 close to the flange 211 ″ and the flange 211 ″, the side edge of the composite material laminated inner panel 22 close to the flange 211 ″ and the flange 211 "Form the rounded corners of the outer covering of the automobile, and the formed rounded corners are smooth and continuous, as shown in Figure 2e. It can be understood that the filled material 23 may be a filler such as putty.

It should be noted that, as can be seen from Fig. 2d and Fig. 2e, when bonding between the composite material laminated inner panel 22 and the composite material laminated outer panel 21, an adhesive layer 24 can be used, and, from Fig. 2d and 2e, it can be seen that the adhesive layer 24 has a thickness. Correspondingly, the raised height of the trimmed flange 211' can be considered to be substantially the same as the sum of the thicknesses of the composite material laminated inner panel 22 and the adhesive layer 24. Of course, the thickness of the adhesive layer 24 may also be small enough to be ignored. In this case, the raised height of the trimmed flange 211' can also be considered to be substantially the same as the thickness of the composite material laminated inner panel 22.

The side view of the automobile outer cover produced according to the above embodiment is shown in FIG. 3 . It can be clearly seen from FIG. 3 that the flange 211 ″ of the outer panel wraps the edge of the composite material laminated inner panel 22 , realizing the rounded corner of the automobile panel.

The outer cover of the car in Figure 3 is only a schematic expression. When the cover is located in different parts of the car body, the shape can be changed as needed, but the edge of the inner panel is wrapped in the outer panel through the outer panel. Inside, the principle of rounding corners for car panels is the same.

Based on the same inventive concept, the present invention also provides an automobile, which includes the automobile outer cover made according to the above embodiments.

Embodiment two

In this embodiment, the composite material laminated outer panel 21 can be formed as shown in FIG. 2a of the first embodiment, and trimmed to form a slab with a predetermined lift height as shown in FIG. 2b of the first embodiment. The flange 211' is ground to form a flange 211" with rounded corners on the outside as shown in Figure 2c of the first embodiment, and a composite material laminated inner panel 22 is formed as in the first embodiment.

What is different from Embodiment 1 is that in this embodiment, before bonding the composite material laminated inner panel 22 to the covering body 210 of the composite material laminated outer panel 21, the composite material laminated inner panel 22 is placed close to the flange 211". The edge of one side is chamfered to fit the shape of the flange 211 ″, and, please refer to FIG. 4 , in this embodiment, the composite material laminated inner panel 22 ′ after the edge is chamfered is lifted from the flange 211 ″ After one side is bonded to the covering body 210 of the composite material laminated outer panel 21, the side edge of the composite material laminated inner panel 22' close to the flange 211" is also bonded to the flange 211". From FIG. 4 It can be seen that the adhesive glue layer 24' in this embodiment is not only located between the composite material laminated inner panel 22' and the covering body 210 of the outer panel 21, but also further extends to the composite material laminated inner panel 22' close to the flip. Between one edge of the edge 211" and the flange 211".

Therefore, the side edge of the composite material laminated inner panel 22' near the flange 211" and the flange 211" form the rounded corner of the outer cover of the automobile, and the formed rounded corner is smooth and continuous.

Thus, the automobile outer cover of the present embodiment is fabricated. In this embodiment, because the composite material laminated inner panel 22' is chamfered into a shape suitable for the flange 211" through the edge, the gap between the flange 211" and the flange 211" is greatly reduced when it is matched with the flange 211" , so there is no need to fill the material 23 between the side edge of the inner panel 22 close to the flange 211 ″ and the flange 211 ″ as in the first embodiment, but the above-mentioned gap can be eliminated by relying on the adhesive layer 24 ′.

Based on the same inventive concept, the present invention also provides a car, which includes the car outer cover made according to any one of the above-mentioned embodiments.

It should be understood that although this specification is described according to various implementations, not each implementation only includes an independent technical solution. This description of the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions of the feasible implementation modes of the present invention, and are not intended to limit the protection scope of the present invention. Any equivalent implementation or Changes, such as combination, division or repetition of features, should be included in the protection scope of the present invention.

Claims (7)

1. a kind of production method of vehicle exterior cladding element, which is characterized in that including：

Laminated composite outside plate is formed, the laminated composite outside plate has covering main body and positioned at the covering main body The flange of boundary, also, the one side of the flange to the covering main body tilts；

The flange is trimmed to predetermined tilting height；

It polishes to form fillet backwards to the outside of the covering main body in the flange；

Form laminated composite inner panel；

The laminated composite inner panel is adhered to the institute of the laminated composite outside plate in the one side that the flange tilts State covering main body.

2. production method as described in claim 1, which is characterized in that the flange is compared with the inclination angle for covering main body Degree is not less than 90 degree.

3. production method as described in claim 1, which is characterized in that the production method is further in the laminated composite Inner panel fill material between the one side edge of the flange and the flange.

4. the method as described in claim 1, which is characterized in that the production method is further by the laminated composite inner panel One side edge beveling close to the flange is the shape being adapted to the flange and is adhered to the flange.

5. the method as described in claim 1, which is characterized in that the production method polishes to form the circle using rounded corner cutter Angle.

6. a kind of vehicle exterior cladding element, the vehicle exterior cladding element makes shape by method described in any one of claim 1 to 5 Into.

7. a kind of automobile, including vehicle exterior cladding element as claimed in claim 6.