A method and device for self-learning generation of flame path trajectory of water-fire curved plate

Abstract

The invention discloses a self-learning generation method and device for a line heating flame path. The method comprises: acquiring an initial target angular deformation change curve corresponding toa machined outer plate by calculation; acquiring a first machining flame path of the machined outer plate according to the maximum angular deformation of single flame path machining corresponding to the machined outer plate to perform first machining on the machined outer plate, and acquiring a target angular deformation change curve corresponding to the machined outer plate by calculation after current machining; acquiring a learning correction model of the flame path machining position and the actual deformation under preset machining parameters; and acquiring a second planned flame path toperform second machining on the machined outer plate. The method and the device ensure that the machined outer plate is not excessively machined by presetting the maximum angular deformation of the preset single flame path on the premise that the angular deformation generated after machining of each flame path is unknown, and precisely generate a second machining flame path by acquiring the actualangular deformation of the flame path under the same machining parameters through self-learning correction.

Description

technical field [0001] The invention relates to the field of ship shell plate processing, in particular to a method and device for self-learning and generating flame path tracks of water and fire bending plates. Background technique [0002] The water-fire bending plate forming process is a thermal processing process in which the steel plate is locally heated by a gas-oxygen torch and the heating area is tracked and cooled to cause plastic deformation of the steel plate. At present, this process is mainly used for forming complex outer plates of ships and large internal components of the hull. However, since the water-fire bending process is a local transient thermoelastic-plastic deformation process, there are many factors that affect the deformation, such as heating rate, gas-oxygen flow rate, and steel plate thickness. Therefore, the process still needs to rely on experienced manual experience to formulate the flame trajectory (ie heating path) and heating parameters dur...

AI Technical Summary

Problems solved by technology

However, the processing of the hull plate belongs to small batch production, and the relationship models of different plate types are not the same, so it is not suitable for the actual hull plate processing

Images