Die forming process for automobile frame longitudinal girders

A technology of mold forming and automobile frame, which is applied in the direction of load-bearing elongated structural members, beams, vehicle parts, etc., can solve the problems of deviation in the forming of longitudinal beams, affecting the service life of products, and tolerance of material thickness, etc. Achieve the effect of improving product qualification rate, reducing work difficulty and improving service life

Inactive Publication Date: 2018-11-23
CHUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upper mold (ie punch) and the lower mold (ie concave mold) of the existing stringer forming mold tend to rebound during compression molding, which leads to unqualified production of the product stringer and affects the service life of the product
In the actual production process, due to the high yield strength of the girder slab, there is a tolerance in the thickness of the material, there is a deviation in the forming of the formed longitudinal beam, and there is a large gap between the beam closing operation and the front and rear beams, which does not meet the quality requirements and is time-consuming and laborious. Low efficiency and inconvenience to work

Method used

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  • Die forming process for automobile frame longitudinal girders
  • Die forming process for automobile frame longitudinal girders
  • Die forming process for automobile frame longitudinal girders

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] Such as figure 1 with figure 2 The shown mold structure for the longitudinal beam of the automobile frame includes an upper mold 2 and a lower mold 1 which are installed up and down in cooperation with each other.

[0028] Such as Figure 3 to Figure 5 As shown, the lower mold 1 includes a lower mold base 11 and a lower mold positioning plate 12 installed in parallel on the upper surface of the lower mold base 11. The left and right ends of the lower mold...

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Abstract

The invention discloses a die forming process for automobile frame longitudinal girders. The process includes the following steps that mounting of a lower die is finished; mounting of an upper die isfinished; matched mounting of the upper die and the lower die is finished; blanking-punching is performed; pre-bending is performed; flanging forming is performed; and finally, side shaping, punchingand side punching machining are performed on a sheet metal part. By means of the die forming process for the automobile frame longitudinal girder, the rebound phenomenon is prevented from occurring during upper die and lower die compression molding, the qualified rate of products is improved, the service life of the products is prolonged, zero deflection exists in the forming positions of the formed longitudinal girders, gaps of girder combining operation and between a front transverse girder and a rear transverse girder are very small, the quality requirement is met, the production efficiencyis improved, the assembling time is shortened, and the working difficulty is lowered.

Description

technical field [0001] The invention belongs to the field of automobile moulds, in particular to a molding process for automobile frame longitudinal beams. Background technique [0002] The frame of the car is mainly composed of longitudinal beams and beams. The cross-section of the light truck frame longitudinal beams is mostly U-shaped, which is composed of upper and lower end flanges welded to the web. Under the conditions of use, the longitudinal beam as the main component of the frame bears various complex loads from the road and loading, and the strength, stiffness and life of the frame longitudinal beam are very important in the overall design of the car. The upper mold (ie punch) and the lower mold (ie concave mold) of the existing stringer forming mold tend to bounce back during compression molding, which leads to unqualified production of the product stringer and affects the service life of the product. In the actual production process, due to the high yield stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D35/00B21D53/88B21D47/01
CPCB21D35/001B21D35/002B21D47/01B21D53/88
Inventor 王峥谢有浩万举晔倪受春任杰丁鹏飞
Owner CHUZHOU UNIV
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