Workpiece deformation correction method based on support vector machine

Abstract

The invention relates to a workpiece deformation correction method based on a support vector machine. The method comprises the following steps: (1) collecting deformation correction test data of workpieces; (2) establishing a training sample set; (3) establishing a workpiece correction parameter predication model based on a support vector machine algorithm; (4) performing workpiece correction treatment, namely inputting actual deformation data of to-be-corrected workpieces into the prediction model, automatically calculating correction positions and correction force parameters, inputting the correction positions and the correction force parameters into correction equipment and automatically correcting the workpieces. According to the workpiece deformation correction method, intelligent correction parameter prediction is realized by use of small amount of workpiece correction test data, the test cost and time are greatly saved and the workpiece deformation correction efficiency and the workpiece deformation correction precision are improved.

Description

technical field [0001] The invention relates to the technical field of workpiece correction, in particular to a workpiece deformation correction method based on a support vector machine. technical background [0002] During the casting, forging, heat treatment and other processing processes of metal workpieces, due to uneven force, uneven heating and cooling, transportation and stacking, etc., residual stress is usually generated inside, resulting in different degrees of residual deformation. These deformations seriously affect the performance of the workpiece and must be corrected. [0003] At present, most of the domestic workpiece correction equipment are manual-operated machines with simple structure, which mainly rely on the experience of workers to determine the correction process parameters, and can realize automatic operation according to different correction requirements. High-efficiency, high-quality manufacturing requirements. Therefore, it is urgent to develop ...

AI Technical Summary

Problems solved by technology

Usually, the correction force and the action position are determined according to the original deformation parameters of the workpiece. However, due to the great uncertainty of many input data and the complexity of the deformation mechanism of the workpiece, it is difficult to construct an ideal theoretical model between the deformation characteristics of the workpiece and the correction parameters. Realize automatic calculation and optimization of correction process parameters

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