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
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[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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