A rolling bending process control method and system

Abstract

The invention provides a rolling bending process control method and system. The control method: obtain the target parameter data of the profile; calculate the parameter data before springback by using the springback formula according to the target parameter data; determine the output value of the driving roller rotation angle and the displacement of the bending roller of the roll bending processing equipment according to the parameter data before springback Output value; in the process of roll bending, the actual bending radius of the profile after roll bending is detected in real time, and the bending radius feedback value is obtained; according to the bending radius feedback value, the displacement of the bending roll is determined by using the relationship between the bending radius and the displacement of the bending roll Feedback value; compare the feedback value of the displacement of the bending roller with the output value of the displacement of the bending roller, calculate the displacement error of the bending roller, and adjust the output value of the displacement of the bending roller according to the displacement error. The invention compensates the springback of the rolled parts before the bending process, and corrects the bending radius of the profile through real-time detection of error data during the rolling process, which can reduce the springback error and improve the rolling forming accuracy of the profile.

Description

technical field [0001] The invention relates to the technical field of roll bending processing, in particular to a roll bending process control method and system. Background technique [0002] The roll bending process is mainly used in the field of profile roll bending control required by aviation, aerospace and other projects. In the profile roll forming process, due to the elastic-plastic deformation of the material, it is very easy to have springback problems, resulting in very difficult control of forming accuracy. Difficult. For constant curvature rolling, the accuracy can be guaranteed by making corrections in multiple rolls. For variable curvature rolling, there is currently no good solution. How to improve the forming quality of variable curvature roll bending has become a technical problem to be solved urgently. Contents of the invention [0003] The object of the present invention is to provide a roll bending process control method and system to improve the form...

AI Technical Summary

Problems solved by technology

[0002] The roll bending process is mainly used in the field of profile roll bending control required by aviation, aerospace and other projects. In the profile roll forming process, due to the elastic-plastic deformation of the material, it is very easy to have springback problems, resulting in very difficult control of forming accuracy. Difficult. For constant curvature rolling, multiple rolls can be corrected to ensure accuracy. For variable curvature rolling, there is currently no good solution

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