Pre-flaring device for low-wall-thickness steel pipe

Abstract

The invention relates to the technical field of pipe flaring, and discloses a pre-flaring device for a low-wall-thickness steel pipe. The flaring device is located below a fixed piston through the bottom of a trigger. When a pusher II operates and pushes a hydraulic shell to operate in the downward direction in Fig. 2, the trigger firstly makes contact with a moving block and drives the moving block to move in the downward direction in Fig. 4, meanwhile, a containing cavity in a correction shell is reduced, the pressure is increased, and the pressure acts on a pressed piece, and pushes a correction push rod to extend outwards. Under the limitation by a balance spring, the extension amounts of the correction push rod are equal, when a push block makes contact with a pipe, if the axis of thepipe and the axis of a correction device are not located on the same center line at the moment, the push block corrects the position of the pipe by making the extension amounts of the correction pushrod equal, and therefore, the problem that the end opening of the pipe is prone to crack during flaring due to the fact that an original device cannot correct the pipe is solved, and the scrap probability in the pipe processing process is reduced.

Description

technical field [0001] The invention relates to the technical field of pipe flaring, in particular to a low-wall thickness steel pipe pre-flare device. Background technique [0002] The flaring device is a very common device in the mechanical field. Flared pipes can be seen in various electrical machinery. Some pipes have thinner walls to facilitate connection and installation. They also need to be flared before they can be used. Now Some flaring devices generally use hydraulic pressure as the power. By pushing the flaring rod into the inside of the pipe, and flaring from the end of the pipe, this flaring method is the most used in the existing flaring equipment. This method has a fast flaring speed, and the flaring machine has a simple structure and low manufacturing and maintenance costs, making it widely used. [0003] However, this processing method has a strong advantage in processing some pipes with thicker pipe walls, but when processing some pipes with thicker pipe ...

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the use of the existing pipe flaring device proposed in the background technology, the present invention provides a low-wall steel pipe pre-flare device, which can automatically correct the position of the pipe before flaring and greatly reduce the The advantage of the cracking probability of the pipe end solves the problem of cracking in the flaring operation due to the low wall thickness of the pipe

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