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Cold stamping process of heavy-duty off-road vehicle frame reinforcing plate

An automobile frame and reinforcing plate technology, which is applied in the field of machining, can solve the problems of easy sliding and rotation, excessive size and angle, stress concentration, etc., and achieves the effects of high production efficiency, cost saving and good product quality.

Active Publication Date: 2019-03-26
SINO TRUK JINAN POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the roundabout process is adopted, because the bending machine has no pressing device, it is easy to slide and rotate during bending (forming L-section), resulting in size, angle deviation and offset; when cutting and welding, it is easy to be caused by poor actual operation. Stress Concentration Defects Caused by Stability Factors

Method used

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  • Cold stamping process of heavy-duty off-road vehicle frame reinforcing plate
  • Cold stamping process of heavy-duty off-road vehicle frame reinforcing plate
  • Cold stamping process of heavy-duty off-road vehicle frame reinforcing plate

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Embodiment Construction

[0019] The present invention will be specifically described below in conjunction with the accompanying drawings and embodiments.

[0020] figure 1 Shown is a structural schematic view of the reinforced plate product of the present invention.

[0021] figure 2 Shown is the invention figure 1 A-A cross-sectional schematic diagram.

[0022] The present invention provides a cold stamping process for a frame reinforcement plate of a heavy-duty off-road vehicle. The reinforcement plate 6 is a symmetrical part with an L-shaped cross-section and a bending fillet radius of R1. It is bent at θ degrees, and the radius of the bending fillet is R2 and R3; the material thickness range of the material used is 8-12mm, and the yield strength range is 450MPa-600Mpa.

[0023] Preferably, the material used is a high-strength hot-rolled steel plate with a length of 6320 mm, a thickness of 10 mm, and a strength of σs≥500 MPa.

[0024] The process is: blanking→roll forming→bending→separation. ...

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Abstract

The invention discloses a cold stamping process of a heavy-duty off-road vehicle frame reinforcing plate. The reinforcing plate is a symmetric product, the section of the product is of an L-shaped structure, the bending circular bead radius is R1, two theta-degree bends are arranged in the longitudinal direction, the bending circular bead radii are R2 and R3, the material thickness ranges from 8 mm to 12 mm, the yield strength ranges from 450 MPa to 600 MPa, and the process comprises the steps of discharging, rolling forming, bending and separating. Flexible forming is achieved, product quality is improved, the problems that forming is difficult and cracking defects exist in the circuitous process can be solved, two products are formed at a time, production efficiency is improved, a general production device is adopted, mold development cost is saved, the product development period is shortened, and the advantages of being good in product quality, low in labor intensity, high in production efficiency, capable of saving cost and shortening product development period can be achieved.

Description

technical field [0001] The invention relates to a stamping process of a high-strength thick plate stamping part, in particular to a cold stamping process of a frame reinforcement plate of a heavy-duty off-road vehicle, and belongs to the technical field of mechanical processing. Background technique [0002] There is a common work piece (there is a symmetrical work piece with it), which is made of high-strength, thick steel plate material, has a large shape, an L-shaped cross-section, and longitudinal bending of the L-shaped cross-section. This part is used in the frame assembly of a heavy-duty off-road vehicle, and its longitudinal bend is basically located above the front drive axle. Due to the complex and harsh operating environment of this vehicle, the frame assembly is subjected to large bending impact and torsional impact. If Potential failure defects such as stress concentration defects or large burrs and uneven cutting sections occur during the processing of the part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/50
Inventor 孟苓苓于忠伟王亓召张子堂
Owner SINO TRUK JINAN POWER
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