Welding rib structure suitable for handrail upper cover hot plate welding

Abstract

The utility model aims to provide the welding rib structure suitable for welding the handrail upper cover hot plate, and the problems that the welding is not firm after being welded, the welding structure is poor in rigidity and the welding structure is easy to break in the welding process due to insufficient welding area are solved. Meanwhile, equipment automation can be achieved in the welding process, production efficiency is improved, labor intensity of workers is reduced, the qualified rate of finished products is high, and product performance is stable. The handrail wrapping skin wraps the handrail wrapping framework with the handrail foaming layer, and the handrail foaming layer is nailed on the surface B of the handrail wrapping framework through staples; a handrail upper cover welding rib D on the G face in the handrail upper cover is connected with a handrail wrapping framework welding rib C on the B face in the handrail wrapping framework in a welding mode through hot plate welding. The handrail upper cover has the advantages that other connecting pieces are not introduced, the weight of the handrail upper cover is reduced, the handrail upper cover is a moving piece, the gravity center change caused by falling of parts cannot be caused, and the stability of the opening function of the handrail is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile interior decoration, and in particular relates to a welding rib structure suitable for welding a hot plate on an armrest cover. Background Art

[0002] At present, in the connection process of automobile interior, the connection methods of injection molded parts mainly include the following: snap connection, welding, threaded connection, plug-in, bonding and hot melt connection. Welding is one of the common connection methods. Injection molded parts can be connected by hot plate welding, vibration friction welding, ultrasonic welding and laser welding. The durability of snap connection is poor. Frequent insertion and extraction will cause snap fatigue, thereby reducing its connection strength. The strength of snap connection is low, and it is easy to loosen or break when subjected to large force or impact. Although threaded connection is widely used, it also has some disadvantages, such as restrictions on materials. Some brittle materials cannot withstand the strength of threads. In addition, threaded connection is difficult to achieve sealing effects such as waterproof, dustproof or air leakage prevention, and additional sealing measures need to be added.

[0003] Compared with other connection methods, injection molding welding has many advantages. Its strength is high, and some can even be close to the strength of the original material; compact structure, no other connection parts are required, thus realizing compact structural design; good durability, not easy to fail due to fatigue or wear; high production efficiency, automatic welding can be realized in large-scale production to improve production efficiency; wide material adaptability, common plastic materials can basically be used, and some materials that are difficult to connect by other methods can also be used; large-area plastic parts can be connected, etc. For some special properties, such as good sealing, the requirements can also be met. Therefore, welding connection methods are widely used in the field of automotive interiors according to the design and use environment.

[0004] However, the existing handrail cover welding generally uses a single welding column structure, the number of welding columns is limited, and the welding area is insufficient, resulting in insufficient strength of the handrail cover after welding; using a single welding rib structure, the welding rib itself has poor rigidity and is easy to deform, and the size after welding is difficult to ensure. In view of this, a welding rib structure suitable for hot plate welding of handrail cover is urgently needed in the industry. Utility Model Content

[0005] The purpose of the utility model is to provide a welding rib structure suitable for welding the hot plate on the handrail cover, which solves the problems of instability after welding caused by insufficient welding area, poor rigidity of the welding structure and easy fracture during welding. At the same time, the welding process can realize equipment automation, improve production efficiency, reduce the labor intensity of workers, and have a high qualified rate of finished products and stable product performance.

[0006] The utility model solves the technical problem by adopting the following technical solutions:

[0007] A welding rib structure suitable for hot plate welding of an armrest cover, comprising: an armrest covering skin 1, an armrest foaming layer 2, an armrest covering frame 3 and an armrest cover 4, wherein the armrest covering skin 1 wraps the armrest foaming layer 2 onto the armrest covering frame 3 and is stapled to the B surface of the armrest covering frame 3 (such as Figure 2 The armrest cover 4 on the G surface of the armrest cover welding rib D (as shown); Figure 7 As shown) and the handrail covering frame welding rib C on the B surface of the handrail covering frame 3 (as shown Figure 6 shown) are connected by hot plate welding.

[0008] During assembly welding, the positioning rib F (such as Figure 7 As shown) and the positioning hole E on the armrest covering frame 3 (as shown Figure 6 After pre-installation as shown in the figure, it is placed in the lower mold cavity of the hot plate welding jig; the upper mold cavity of the hot plate welding jig and the lower lifting mold cavity are molded together, and the armrest upper cover 4 is vacuum adsorbed and positioned in the upper mold cavity of the hot plate welding jig. At this time, the armrest upper cover 4 and the armrest covering frame 3 are respectively positioned in the upper and lower jig cavities; the two jig cavities are separated, and the hot plate welding heating plate is moved out from the side of the jig, and the armrest covering frame welding rib C on the armrest covering frame 3 and the armrest upper cover welding rib D on the armrest upper cover 4 are heated at the same time, and then the heating plate is withdrawn; the two jig cavities are molded together, pressurized, and the welding ribs of the two pieces in a molten state are pressed together, and then welded together after cooling and forming.

[0009] The B surface of the armrest covering frame 3 is provided with an armrest covering frame welding rib C and a positioning hole E, and the G surface of the armrest upper cover 4 is provided with an armrest upper cover connecting rib D and a positioning rib F;

[0010] The armrest covering frame welding rib C on the armrest covering frame 3 and the armrest upper cover welding rib D on the armrest upper cover 4 are both reserved with 3mm welding melting interference, such as Figure 8 and Fig. 9 shown.

[0011] The armrest covering frame welding rib C on the armrest covering frame 3 is in the shape of a cylindrical rib and four sheet rib structures, such as Figure 6 As shown;

[0012] The armrest upper cover welding rib D on the armrest upper cover 4 is in the shape of a cylindrical rib and four sheet rib structures, such as Figure 7 As shown;

[0013] The handrail covering frame welding ribs C and handrail upper cover welding ribs D are consistent in shape and size;

[0014] The armrest covering surface 1 is made of PVC material.

[0015] The advantages and positive effects of the utility model are:

[0016] The utility model designs a welding rib structure suitable for hot plate welding of the upper cover of the handrail. The single product is formed by injection molding. The size stability of the welding structure is good, and the strength, rigidity and durability are stable. The welding process is easy to implement. Without introducing other connecting parts, the weight of the upper cover of the handrail is reduced, and the upper cover of the handrail is a moving part, which will not cause the change of the center of gravity due to the falling of parts, thereby ensuring the stability of the opening function of the handrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a welding rib structure suitable for welding of hot plates on handrail covers;

[0018] Figure 2 is a schematic diagram of the B side of the armrest covering frame 3;

[0019] Figure 3 is a schematic diagram of the A surface of the armrest covering frame 3;

[0020] Figure 4 is a schematic diagram of the G surface of the upper cover 4 of the armrest;

[0021] Figure 5 is a schematic diagram of the H surface of the upper cover 4 of the handrail;

[0022] Figure 6 It is a structural schematic diagram of the welded rib C of the handrail covering frame;

[0023] Figure 7 This is a schematic diagram of the structure of the welded rib D on the handrail cover.

[0024] Figure 8 A bottom view of a welding rib structure suitable for welding a hot plate on a handrail cover;

[0025] Fig. 9 for Figure 8 A cross-sectional view of DETAILED DESCRIPTION

[0026] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0027] 1. See Figure 1-Figure 9 The present specific implementation method is a welding rib structure suitable for hot plate welding of the upper cover of the handrail, which comprises: an armrest covering skin 1, an armrest foaming layer 2, an armrest covering frame 3 and an upper cover of the handrail 4. The armrest covering skin 1 wraps the armrest foaming layer 2 onto the armrest covering frame 3 and is stapled to the B surface of the armrest covering frame 3 (such as Figure 2 The armrest cover 4 on the G surface of the armrest cover welding rib D (as shown); Figure 7As shown) and the handrail covering frame welding rib C on the B surface of the handrail covering frame 3 (as shown Figure 6 shown) are connected by hot plate welding.

[0028] During assembly welding, the positioning rib F (such as Figure 7 As shown) and the positioning hole E on the armrest covering frame 3 (as shown Figure 6 After pre-installation as shown in the figure, it is placed in the lower mold cavity of the hot plate welding jig; the upper mold cavity of the hot plate welding jig and the lower lifting mold cavity are molded together, and the armrest upper cover 4 is vacuum adsorbed and positioned in the upper mold cavity of the hot plate welding jig. At this time, the armrest upper cover 4 and the armrest covering frame 3 are respectively positioned in the upper and lower jig cavities; the two jig cavities are separated, and the hot plate welding heating plate is moved out from the side of the jig, and the armrest covering frame welding rib C on the armrest covering frame 3 and the armrest upper cover welding rib D on the armrest upper cover 4 are heated at the same time, and then the heating plate is withdrawn; the two jig cavities are molded together, pressurized, and the welding ribs of the two pieces in a molten state are pressed together, and then welded together after cooling and forming.

[0029] The B surface of the armrest covering frame 3 is provided with an armrest covering frame welding rib C and a positioning hole E, and the G surface of the armrest upper cover 4 is provided with an armrest upper cover connecting rib D and a positioning rib F;

[0030] The armrest covering frame welding rib C on the armrest covering frame 3 and the armrest upper cover welding rib D on the armrest upper cover 4 are both reserved with 3mm welding melting interference, such as Figure 8 and Fig. 9 shown.

[0031] The armrest covering frame welding rib C on the armrest covering frame 3 is in the shape of a cylindrical rib and four sheet rib structures, such as Figure 6 As shown;

[0032] The armrest upper cover welding rib D on the armrest upper cover 4 is in the shape of a cylindrical rib and four sheet rib structures, such as Figure 7 As shown;

[0033] The handrail covering frame welding ribs C and handrail upper cover welding ribs D are consistent in shape and size;

[0034] The armrest covering surface 1 is made of PVC material.

[0035] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention includes but is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A welding rib structure suitable for welding the hot plate on the upper cover of the handrail, characterized in that It consists of an armrest covering skin (1), an armrest foaming layer (2), an armrest covering frame (3) and an armrest upper cover (4); the armrest covering skin (1) wraps the armrest foaming layer (2) onto the armrest covering frame (3) and is stapled to the B surface of the armrest covering frame (3); the armrest covering welding rib D on the G surface of the armrest upper cover (4) and the armrest covering frame welding rib C on the B surface of the armrest covering frame (3) are connected by hot plate welding.

2. A welding rib structure suitable for welding the hot plate on the handrail cover according to claim 1, characterized in that The B surface on the armrest covering frame (3) is provided with an armrest covering frame welding rib C and a positioning hole E, and the G surface on the armrest upper cover (4) is provided with an armrest upper cover connecting rib D and a positioning rib F.

3. A welding rib structure suitable for welding the hot plate on the handrail cover according to claim 1, characterized in that The handrail covering frame welding rib C on the handrail covering frame (3) and the handrail upper cover welding rib D on the handrail upper cover (4) both have a reserved welding melting interference amount of 3 mm.

4. The welding rib structure suitable for welding the hot plate on the handrail cover according to claim 1 is characterized in that The handrail covering frame welding rib C on the handrail covering frame (3) is in the shape of a cylindrical rib and four sheet rib structures.

5. The welding rib structure suitable for welding the hot plate on the handrail cover according to claim 1, characterized in that The handrail upper cover welding rib D on the handrail upper cover (4) is in the shape of a cylindrical rib and four sheet rib structures.

6. The welding rib structure suitable for welding the handrail upper cover hot plate according to claim 1, characterized in that The handrail covering frame welding rib C and the handrail upper cover welding rib D are consistent in shape and size.

7. The welding rib structure suitable for welding the handrail upper cover hot plate according to claim 1, characterized in that The armrest covering surface (1) is made of PVC material.

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