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A structure for integrated installation of front body and its manufacturing method

A manufacturing method and technology of front body, applied in the directions of superstructure, superstructure sub-assembly, vehicle parts, etc., can solve the problems of increased production cost, extremely high mold requirements, and many parts, etc., to achieve convenient processing, cost control, Highly integrated effect

Active Publication Date: 2022-04-01
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the connecting parts near the A-pillar are sheet metal structures, with many and scattered parts. Generally, multiple parts are spliced ​​together by welding. The lap joint requires a certain degree of precision. Cost of production

Method used

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  • A structure for integrated installation of front body and its manufacturing method
  • A structure for integrated installation of front body and its manufacturing method
  • A structure for integrated installation of front body and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Figure 1-3 The structure used for the integrated installation of the front body is shown, which is a cavity structure formed by aluminum alloy casting, which has:

[0045] The front longitudinal beam connection part, the front longitudinal beam connection part has a front longitudinal beam connection port 1;

[0046] A sill beam connection part, the sill beam connection part has a sill beam connection port 2;

[0047] The upper side beam installation part, the upper side beam installation part has a first upper side beam installation surface 3 for connecting the upper surface of the upper side beam; a second upper side beam installation surface 4 for connecting the rear end of the upper side beam;

[0048] A-pillar connecting portion, the A-pillar connecting portion has an A-pillar connecting port 5;

[0049] The lower beam installation part of the front windshield, the lower beam installation part of the front windshield has the lower beam installation surface 6 of th...

Embodiment 2

[0070] The present invention also relates to a manufacturing method for a structure used for the integrated installation of the front body, which adopts an oxygen-filled die-casting method to form the structure, and the specific steps are:

[0071] S1: Preheat the mold first, keep the preheating temperature around 200°C, put the smelted aluminum alloy material into the mold; preheating is mainly to prevent the molten metal from being suddenly cooled and losing fluidity, resulting in molding failure or even The molding is successful, but there will be cracks or gaps on the surface of the part in the later stage;

[0072] S2: Then close the mold to close the mold to form the cavity and runner, and inject dry oxygen into the injection chamber and cavity of the die-casting mold through the injection hole to replace the air and other gases in it. When the aluminum alloy liquid is pressed When entering the pressure chamber and die-casting mold cavity, it reacts with oxygen to genera...

Embodiment 3

[0076] The invention relates to a structure for the integrated installation of the front body, which is an aluminum alloy casting, and specifically includes a front longitudinal beam connection port, a sill beam connection port, an A-pillar connection port, a firewall front baffle beam connection port, and a water tank installation surface , The installation surface of the front bulkhead of the firewall, the installation surface of the lower beam of the front windshield, the installation surface of the upper longitudinal beam, the installation surface of the front floor, the installation hole of the sub-frame, and the installation hole of the front cabin reinforcement beam.

[0077] A structure used for the integrated installation of the front body of the present invention not only serves to connect the front compartment and the cockpit, but also bears the impact of the frontal collision of the vehicle, protects the passenger compartment from deformation, and prevents the wheels...

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Abstract

The invention relates to a structure for the integrated installation of the front body and its manufacturing method. The structure for the integrated installation of the front body of the present invention is a cavity structure formed by aluminum alloy casting, which has: front longitudinal beam connection door sill beam connection port; first upper longitudinal beam installation surface; second upper longitudinal beam installation surface; A-pillar connection port; front windshield lower beam installation surface; Reinforcing beam mounting holes; firewall front bulkhead mounting surface; firewall front baffle beam connection port; sub-frame mounting holes; front floor mounting surface. Regarding the manufacturing method of the structure for the integrated mounting of the front body, the structure is formed by an oxygen-charged die-casting method. The parts of the invention are highly integrated, easy to process, and simple in structure, and can connect the front compartment and the cockpit, disperse and conduct the force generated by the frontal collision of the automobile, protect the passenger compartment from deformation, and prevent wheels, suspensions, etc. from intruding into the passenger compartment. effect.

Description

technical field [0001] The invention mainly relates to a vehicle body structure part, in particular to a structure for integrated installation of a front vehicle body. Background technique [0002] The body-in-white constitutes the basic skeleton of the car, and the body-in-white is composed of numerous parts, while the A-pillar and its connectors are one of the most important components of the body-in-white. At present, most of the connecting parts near the A-pillar are sheet metal structures, with many and scattered parts. Generally, multiple parts are spliced ​​together by welding. The lap joint requires a certain degree of precision. Cost of production. [0003] The direction of the overall structure of the body-in-white is developing toward integration, and the degree of integration of components is getting higher and higher. The integration of body structure and components can not only improve the rigidity of the vehicle, but also reduce the types and quantities of c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D25/04B62D25/08B62D25/20B62D25/02B22D17/00C22C21/02B22D1/00
CPCB62D25/04B62D25/08B62D25/20B62D25/025B22D17/00C22C21/02B22D1/00
Inventor 姜潮雷飞黄启华邱志锋
Owner HUNAN UNIV
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