CN216140068U

CN216140068U - Composite truss joint structure of unmanned low-speed passenger car body

Info

Publication number: CN216140068U
Application number: CN202120403271.7U
Authority: CN
Inventors: 魏向阳
Original assignee: IAT Automobile Technology Co Ltd
Current assignee: IAT Automobile Technology Co Ltd
Priority date: 2021-02-23
Filing date: 2021-02-23
Publication date: 2022-03-29
Anticipated expiration: 2031-02-23

Abstract

The utility model relates to a composite truss joint structure of an unmanned low-speed passenger car body, belonging to the technical field of automobile design and manufacture. The utility model relates to a composite truss joint structure of a body of an unmanned low-speed passenger car, which comprises an upright post, a first side beam and a second side beam; a supporting piece is welded in the upright post, and a lateral sealing plate skin is welded and coated with the supporting piece and the upright post to form a transverse closed cavity; the first side beam and the second side beam are respectively welded on the outer side of the upright post, an angle joint is welded at the joint of the upright post and the first side beam, and an angle joint is welded at the joint of the upright post and the second side beam. The mounting points near the composite truss joint structure of the unmanned low-speed passenger car body are not influenced by forming radians such as stretch bending and press bending of the upright columns, so that the final assembly process is convenient and fast to implement; the matching mounting surface on the inner side of the vehicle provided by the joint is regular, so that the interior decoration mounting and quality improvement are facilitated, and the process implementation is convenient.

Description

Composite truss joint structure of unmanned low-speed passenger car body

Technical Field

The utility model relates to the technical field of automobile design and manufacture, in particular to a composite truss joint structure of an unmanned low-speed passenger car body.

Background

In the prior art, a vehicle body frame joint is mainly made of square tube section bars, is matched with external modeling, adopts the modes of stretch bending, press bending and the like to form or prepare a joint structure, is limited by molding factors, and is not suitable for the condition that the modeling curved surface changes greatly at the joint part and has the following technical problems:

1. after the square tube is bent, the tolerance accumulation of the joint matching part is increased due to the existence of the bending radian;

2. the square tube profile is limited, and the weight reduction is limited due to the fact that the wall thickness of the tube is uniform due to the limitation of the section;

3. the joint reinforcement mode is limited by the cavity structure, and the local reinforcement mode is inconvenient to implement on the premise of not influencing the peripheral matching relation, so that the test verification period is long and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model aims to provide a composite truss joint structure of an unmanned low-speed passenger car body.

The utility model relates to a composite truss joint structure of a body of an unmanned low-speed passenger car, which comprises an upright post, a first side beam and a second side beam; a supporting piece is welded in the upright post, and a lateral sealing plate skin is welded and coated with the supporting piece and the upright post to form a transverse closed cavity; the first side beam and the second side beam are respectively welded on the outer side of the upright post, an angle joint is welded at the joint of the upright post and the first side beam, and an angle joint is welded at the joint of the upright post and the second side beam.

Wherein the first and second side beams are perpendicularly connected to the pillar.

Wherein the first side beam and the second side beam are connected with the upright column in an inclined manner.

The upright column is a U-shaped groove profile, and the supporting piece is welded in the U-shaped groove.

The upright column is a square rectangular tube section, the side wall of the square rectangular tube is grooved, and the supporting piece is embedded and welded in the square rectangular tube section.

Compared with the prior art, the composite truss joint structure of the unmanned low-speed passenger car body has the following beneficial effects:

1. the mounting points near the joint are not influenced by forming radians such as bending and bending, and the assembly process is convenient to implement;

2. the matching mounting surface of the inner side of the vehicle provided by the joint is regular, so that the mounting and the quality improvement of the interior trim are facilitated, and the process is convenient to implement;

3. the upright column correspondingly provides a welding and final assembly process reference surface and is suitable for matching with multi-material skins such as metal plates, glass, composite materials and the like;

4. the composite truss joint is flexible in material selection and can be matched with a thin plate cavity sealing skin;

5. the joint can be embedded with a reinforcing part and an external gusset part in the main beam, so that the joint reinforcement is convenient to implement, and the development period is shortened.

Drawings

Fig. 1 shows the position of the composite truss joint in the upper body frame of the unmanned low-speed passenger vehicle.

Fig. 2 is an isometric view of the composite truss joint structure of the body of the unmanned low-speed passenger vehicle of the utility model.

Fig. 3 is a side view of the composite truss joint structure of the body of the unmanned low-speed passenger vehicle of the present invention.

Fig. 4 is a schematic sectional view taken along a-a of fig. 3.

Fig. 5 is a schematic cross-sectional view taken along the direction B-B in fig. 3.

Detailed Description

The composite truss joint structure of the unmanned low-speed passenger car body of the utility model will be further described with reference to specific embodiments to help those skilled in the art to more fully, accurately and deeply understand the technical solution of the utility model.

Example 1

The boxed portion in fig. 1 shows the position where the composite truss joint for the unmanned low-speed passenger car body of the present embodiment is applied to the upper portion of the car body. As shown in fig. 2 to 5, the composite truss joint structure for the unmanned low-speed passenger car body of the present embodiment includes a pillar 2, a first side member 1, and a second side member 4, wherein the first side member 1 and the second side member 4 can be connected to the pillar 2 vertically or obliquely. The upright post 2 is a U-shaped groove profile or a square rectangular tube profile. When the upright post 2 is a square rectangular pipe section, a support 8 is welded in the upright post through a slot, and the side sealing plate skin 3 is welded and coated with the support 8 and the upright post 2. When the upright post 2 is a U-shaped groove profile, the supporting piece 8 is embedded and welded in the U-shaped groove, and the side sealing plate skin 3, the supporting piece 8 and the upright post 2 are welded and coated. The first side beam 1 and the second side beam 4 are respectively welded on the outer side of the upright post 2, an angle joint 5 is welded at the joint of the upright post 2 and the first side beam 1, and an angle joint 5 is also welded at the joint of the upright post 2 and the second side beam 4.

The composite truss joint of the embodiment takes a U-shaped groove profile or a square tube upright post as a main beam, is matched with molding machining, and is subjected to shape following cavity sealing through a side sealing skin, wherein the outer side of the skin is matched with a non-single-curvature complex molding outer covering piece; the stretch bending processing is not needed, and a processing deformation area is not generated; the matching mounting surface of the inner side of the vehicle provided by the joint is regular, and the process is convenient to implement; the frame provides regular positioning and mounting surfaces, is matched with a modeling influence area to be directly connected with the skin to form a matching surface, and is suitable for various connection modes such as bonding, welding, riveting and the like; the reinforcing piece and the external corner supporting piece can be embedded in the main beam of the composite truss joint, so that the reinforcing and strengthening modes are flexible, and the development and volume production period is saved.

It is obvious to those skilled in the art that the specific embodiments are only exemplary descriptions of the present invention, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and various insubstantial modifications made by the method concept and technical scheme of the present invention are within the protection scope of the present invention.

Claims

1. A composite truss joint structure of a body of an unmanned low-speed passenger car comprises an upright post, a first side beam and a second side beam; the method is characterized in that: a supporting piece is welded in the upright post, and a lateral sealing plate skin is welded and coated with the supporting piece and the upright post to form a transverse closed cavity; the first side beam and the second side beam are respectively welded on the outer side of the upright post, an angle joint is welded at the joint of the upright post and the first side beam, and an angle joint is welded at the joint of the upright post and the second side beam.

2. The composite truss joint structure of the unmanned low-speed passenger car body of claim 1, wherein: the first side beam and the second side beam are vertically connected with the upright post.

3. The composite truss joint structure of the unmanned low-speed passenger car body of claim 1, wherein: the first side beam and the second side beam are obliquely connected with the upright post.

4. The composite truss joint structure of the unmanned low-speed passenger car body of claim 1, wherein: the stand is U type groove section bar, support piece welding is in U type inslot.

5. The composite truss joint structure of the unmanned low-speed passenger car body of claim 1, wherein: the upright posts are square rectangular tube sections, the side walls of the square rectangular tubes are grooved, and the supporting pieces are embedded and welded in the square rectangular tubes.