Cold forming machine for elbow pipe

Abstract

A cold forming machine for an elbow pipe comprises a hydraulic station (1), a pair of hydraulic oil cylinders (2), a pair of elbow pipe bases (3) and an arc-shaped baffle plate (4). An oil outlet of the hydraulic station (1) is communicated with oil inlets of the hydraulic oil cylinders (2), each elbow pipe base (3) is mounted at one end of a piston rod of each hydraulic oil cylinder (2), and the arc-shaped baffle plate (4) is located in front of the elbow pipe bases (3). The cold forming machine has the advantages that the double hydraulic oil cylinders are adopted to exert pressure upon two ends of the circular pipe which contacts the arc-shaped baffle plate at the same time, so that bending function is achieved with heating process omitted, and the cold forming machine is both time saving and labor saving.

Description

technical field [0001] The invention relates to the field of sheet metal processing, in particular to a pipe bending cold forming machine. Background technique [0002] At present, when the existing bent pipes are bent, they all use heating to make the steel plate produce thermoelastoplastic deformation to obtain the shape we need. The disadvantage is that the heating temperature of the above method has strict requirements. If If the heating is excessive or the heating standard is not met, the desired bending effect cannot be achieved, and heating requires energy consumption. Contents of the invention [0003] The purpose of the present invention is to point out that when the existing bent pipe is being bent, the steel plate is heated to generate thermoelastoplastic deformation to obtain the shape we need. The heating temperature has strict requirements. If the heating is excessive or not Reaching the heating standard is insufficient to achieve the desired bending shape, ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to point out that when the existing bent pipe is being bent, the steel plate is heated to generate thermoelastoplastic deformation to obtain the shape we need. The heating temperature has strict requirements. If the heating is excessive or not It is not enough to reach the heating standard, but the required bending shape cannot be achieved, so a cold forming machine for bending pipes is provided.

Images