A height maintaining device and method for intelligent processing of water and fire bending plates

Abstract

The invention provides an intelligent line heat forming height keeping device. A fire lance and a distance measuring sensor are arranged on a fire lance platform, and a distance measuring data obtaining module obtains a working distance between the distance measuring sensor and a to-be-machined steel plate in real time when the fire lance works; a height difference comparing module enables the working distance to be compared with a preset distance, and when the working distance is larger than the preset distance, a distance difference between the working distance and the preset distance is calculated; and a motor control unit controls a servo motor to run according to the distance difference calculated by the height difference comparing module, enables a Z-axis lifting mechanism to drive the fire lance platform to ascend and descend, and enables the working distance between the distance measuring sensor and the to-be-machined steel plate to be adjusted to be within the scope of the preset distance. The function of automatic tracking of fire lance height of intelligent line heat forming robot is achieved, and the line heat forming height is kept within the scope required by a process.

Description

technical field [0001] The invention relates to the technical field of processing large-scale and complex hull panels, in particular to a height maintaining device and method for intelligent processing of water-fired bent plates. Background technique [0002] Water-fire bending, also known as line heating or line heat of forming, is a forming process that utilizes the local thermoelastic-plastic deformation of the metal plate after being locally heated and cooled at a high temperature to achieve overall bending. The water-fire bending plate forming process originated in Japan in the 1950s and 1960s. Due to the advantages of fast processing, flexible operation, no need for other equipment, and suitable for forming complex shapes, it has been rapidly and widely used in shipyards around the world. , and has become the main processing method for double curvature outer plates. At present, almost all double-curvature hull plates are formed by the water-fire bending process. [0...

AI Technical Summary

Problems solved by technology

[0004] In the process of water and fire bending, the height change of the musket will directly lead to the change of the heat on the flame path of the steel plate, which will seriously affect the expected forming effect of the steel plate

Before water and fire bending plate processing, the complex curved surface of the external plate processing needs to be inspected with a laser distance measuring device in a large size and a wide range. Although the spatial coordinate data of the gun is obtained during processing, the steel plate will be deformed during the processing, which is different from before. There is a large error in the measured data, which leads to changes in the heating of the steel plate during the water-fire bending process, which affects the heating and forming effect, and then affects the overall bending and forming of the steel plate

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