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Method for machining longitudinal girder assembly of heavy truck

A technology of longitudinal beam assembly and processing method, applied in the field of automobile manufacturing, can solve the problems of increasing process complexity, reducing cost, improving quality, etc., and achieving the effects of high production efficiency, strong versatility and improved strength

Inactive Publication Date: 2014-04-30
SINO TRUK JINAN POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Increased process complexity, which is not conducive to improving quality and reducing costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] A method for processing a longitudinal beam assembly of a heavy-duty vehicle, comprising a longitudinal beam and a longitudinal beam reinforcing beam made by a conventional processing technology, characterized in that it also includes the following steps:

[0019] A. Process the welding process holes on the reinforcing beam;

[0020] B. The profile positioning of the lower wing surface and the belly surface of the longitudinal beam and the reinforcing beam, shaping and compacting the longitudinal beam and the reinforcing beam, so that the longitudinal beam and the reinforcing beam fit together;

[0021] C. Plug welding is performed at the welding process hole, and the longitudinal beam and the reinforcing beam are welded into one;

[0022] D. Put the reinforcing beam of the welded longitudinal beam assembly on the riveting punching line, and punch out all the holes.

[0023] The welding process holes are distributed on the ventral surface of the reinforcing beam with a...

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PUM

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Abstract

The invention relates to the field of manufacture of automobiles, in particular to a method for machining a longitudinal girder assembly of a heavy truck. The method for machining the longitudinal girder assembly of the heavy truck is characterized by comprising the following steps of (A) forming technological welding holes in a stiffening girder by machining; (B) positioning profiles of lower wing surfaces and ventral surfaces of a longitudinal girder and the stiffening girder, and shaping and compressing the longitudinal girder and the stiffening girder so that the longitudinal girder is adhered to the stiffening girder; (C) performing plug welding on the technological welding holes, and welding the longitudinal girder and the stiffening girder to form a whole body; and (D) placing the stiffening girder of the longitudinal girder assembly which is welded integrally on a riveting line, and forming all holes in the longitudinal girder assembly by riveting. The method for machining the longitudinal girder assembly of the heavy truck has the advantages that the production efficiency and the universality are high; an adhering gap between the longitudinal girder and the stiffening girder is smaller than 0.8mm; the strength of a frame assembly is improved; the problem that the strength of the frame assembly is low due to the large adhering gap between the longitudinal girder and the stiffening girder is solved; a phenomenon that holes of the longitudinal girder and holes of the stiffening girder are misplaced is avoided; hole milling is not required; and the labor cost is reduced.

Description

[0001] technical field [0002] The invention relates to the field of automobile manufacturing, in particular to a processing method for a longitudinal beam assembly of a heavy-duty automobile. Background technique [0003] The frame longitudinal beam assembly of heavy-duty trucks, including frame longitudinal beams and reinforcing beams, is an important basic component of heavy-duty vehicles. In the past, the processing method of the longitudinal beam assembly of the vehicle frame is to fasten the front end and the rear end of the longitudinal beam with a process bolt respectively after the longitudinal beam and the reinforcing beam are processed respectively. This processing method is simple, but there is a large bonding gap between the longitudinal beam and the reinforcing beam, which can reach 1 to 2 mm, resulting in a decrease in the strength of the frame assembly. In the case of heavy loads, the frame is prone to fracture of the longitudinal beam. In addition, the hol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 和爱华李永俊王鹏刚李兵
Owner SINO TRUK JINAN POWER