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Device and method for manufacturing vehicle longeron variable cross-section channel bar

An automobile longitudinal beam and variable-section technology, which is applied in the field of cold-formed production of automobile longitudinal beam variable-section channel steel, can solve the problems of low forming qualification rate, low production precision, low production efficiency, etc., and achieve good comprehensive mechanical properties. , The effect of good product surface quality and improved production efficiency

Inactive Publication Date: 2009-08-19
武钢集团有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0002]Currently, variable cross-section channel steel girders for automobiles are mainly formed by stamping, which requires special molds. Molds and molds have poor versatility, short mold life, complex molding process, low production accuracy, surface quality and mechanical properties of stamped products cannot be guaranteed, production efficiency is relatively low, and cost is relatively high
Since stamping requires special molds, and the specifications of various car models are not uniform, the cost of each set of molds is relatively expensive (hundreds of thousands of yuan), and it takes a long time to replace the molds; therefore, the price of the automobile frame is high, the production efficiency is low, and the cost is relatively high.
In order to solve the problems of die stamping, people also use manual production methods for production, but the shape of the variable-section channel steel of the automobile beam produced by it is difficult to meet the requirements of users, and the forming pass rate is low.

Method used

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  • Device and method for manufacturing vehicle longeron variable cross-section channel bar
  • Device and method for manufacturing vehicle longeron variable cross-section channel bar
  • Device and method for manufacturing vehicle longeron variable cross-section channel bar

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Embodiment

[0026] A device for producing variable-section channel steel for longitudinal beams of automobiles, mainly composed of a cold bending unit 1, a numerical control cutting machine or a flame cutting machine 2, an automatic welding machine 3, and a conveying roller table 4. It can be installed independently between the cutting machine 2 and the welding machine 3 and can also be connected to the extrusion device 5 with the conveying roller table 4. The welding machine 3 can also be assembled with the extrusion device 5, but the welding machine 3 must be connected to the extrusion device 5. After that, the work order cannot be reversed.

[0027] The composition of the extrusion device 5: the frame 6 is a frame type; the side positioning oil cylinder 7 is conventionally installed symmetrically on both sides of the frame 6, and the push rod 12 connected to the side positioning oil cylinder 7 is connected with the pressure plate 13 by bolts or welding; 6 The deformed cylinder 8 is con...

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Abstract

The invention relates to a device and a method for the cold bending production of reduce section channel steel for a vehicle longitudinal beam, which overcome the shortages that the prior die has poor universality, short service life, complex forming process and low production precision, and the surface quality and the mechanical property of a product after stamping cannot be guaranteed, and the like. The invention has the following measures: the device for producing the reduce section channel steel for the vehicle longitudinal beam mainly comprises a cold bending rolling mill 1, a cutter 2, a welding machine 3 and a conveying roller bed 4, and is characterized in that an extruder 5 is arranged between the cutter 2 and the welding machine 3; and the production method comprises the following steps: using the cutter 2 to perform cutting, adopting the extruder 5 to deform the reduce section segment of the channel steel and reserve a welding seam, adopting the welding machine 3 to perform welding, and cutting to length. The device and the method have the advantages of low manufacturing cost, high productivity, no need of a special die, high dimension precision, relative stamping, energy conservation, environmental protection with less pollution, small work hardening, and better product comprehensive mechanical properties.

Description

technical field [0001] The invention relates to a cold-bending forming device and method for section steel, in particular to a device and a method for cold-bending production of variable-section channel steel for longitudinal beams of automobiles. Background technique [0002] At present, variable cross-section channel steel beams for automobiles are mainly formed by stamping. Stamping forming requires special molds. Variable cross-section channel steel beams of different cross-sectional sizes and lengths require different molds. The versatility of the mold is poor, the mold life is short, and the forming process is complicated , the production accuracy is not high, the surface quality and mechanical properties of the stamped product cannot be guaranteed, the production efficiency is relatively low, and the cost is relatively high. Since stamping requires special molds, and the specifications of the frame of various models are not uniform, the cost of each set of molds is re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/21B21C23/00B21C33/00
Inventor 邓广万国胜俞善喜李烨熊治民郭胜鸿万业成
Owner 武钢集团有限公司
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