Special drawing equipment for stainless steel cross pipe

Abstract

The invention discloses special drawing equipment for a stainless steel cross pipe. The equipment comprises a traction mechanism and an electrical control box which are arranged on a rack, and further comprises a core head positioning mechanism, a supporting mechanism, a straightening mechanism and a die and die holder assembly which are sequentially arranged on the rack in the drawing direction; the core head positioning mechanism is used for positioning and adjusting the position opposite to the die and die holder assembly; the supporting mechanism is used for supporting the stainless steel pipe and a core head; the straightening mechanism is used for straightening the stainless steel pipe to keep concentric with the die and die holder assembly and pressing the stainless steel pipe in the drawing process; and the die and die holder assembly is used for finely adjusting the straightness of the stainless steel special-shaped pipe. According to the drawing equipment, the stainless steel pipe can be straightened in advance through the straightening mechanism, it is guaranteed that the stainless steel pipe can be kept concentric with a drawing die all the time in the drawing process, drawing is more stable, meanwhile, the stainless steel pipe is pressed through pressing wheels, and the phenomenon of oscillation caused by overlong extension of the rear part in the drawing process can be prevented.

Description

technical field [0001] The invention relates to the field of stainless steel tube processing, in particular to a special drawing equipment for stainless steel cross tubes. Background technique [0002] Due to its good mechanical properties, high hardness and high wear resistance, stainless steel pipes are widely used in military products, light industrial products and mechanical instrument products. Stainless steel pipes are generally divided into seamless pipes and welded pipes, and seamless pipes are generally made by hot rolling, cold rolling or cold drawing. The thicker the wall thickness of the stainless steel seamless pipe, the more economical and practical it is. The thinner the wall thickness, its processing cost will increase significantly, especially for thin-walled special-shaped pipes that require high precision. During the process, as the length of the steel pipe increases, its straightness is also difficult to guarantee. Conventional processing methods can no ...

AI Technical Summary

Problems solved by technology

The thicker the wall thickness of the stainless steel seamless pipe, the more economical and practical it is. The thinner the wall thickness, its processing cost will increase significantly, especially for thin-walled special-shaped pipes that require high precision. During the process, as the length of the steel pipe increases, its straightness is also difficult to guarantee. Conventional processing methods can no longer meet the precision of special-shaped pipes, and special equipment is required to process them to meet customer needs.

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