Self-adaption laser shot blasting shape correcting device based on large data platform and method

Abstract

The invention discloses a self-adaption laser shot blasting shape correcting device based on a large data platform and a method. The method comprises the following steps: (1) surface curvature data of a calibrated workpiece and a workpiece needing to be corrected the shape is input to respectively build three-dimensional curvature models; (2) an optimal shape correcting scheme is calculated through a laser shot blasting shape correcting large data platform in a self-adaption manner; (3) the shapes of the workpieces are corrected according to the optimal shape correcting scheme; the surface curvature detection is performed for the shape-corrected workpieces through a three-dimensional shape measurer; and data is input in the large data platform; and (4) the shape correcting effect is estimated through the large data platform to determine if secondary shape correction is needed; and if so, the steps (1-3) are repeated until the final machining requirements are reached, so that the self-adaption laser shot blasting shape correction of the workpieces is realized.

Description

technical field [0001] The invention relates to the field of metal structure shape correction, in particular to a laser peening self-adaptive shape correction device and method based on a big data platform. Background technique [0002] During the processing and use of metal structural parts, there are generally deformation problems caused by the interaction of material properties, initial stress state of blanks, processing technology, geometric structure of parts and service conditions. Traditional metal workpiece shape correction is to repeatedly apply reverse force to the deformed workpiece at an appropriate position, so that the deformed area of ​​the workpiece is squeezed, resulting in reverse plastic deformation, until the desired shape correction result is achieved. [0003] However, in practical applications, the structure or deformation reasons of deformed metal plate workpieces are often complicated. For example, the workpiece itself is not a simple flat plate, but...

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Problems solved by technology

[0003] However, in practical applications, the structure or deformation reasons of deformed metal plate workpieces are often complicated. For example, the workpiece itself is not a simple flat plate, but a complex plate shape with protrusions and other structures, and rods connected together by welding. parts; or there are many local deformations of different degrees in the workpiece, etc.

In these cases, it is difficult to obtain the ideal flatness of the workpiece simply by local or large-area extrusion; the local residual stress of the workpiece after shape correction is relatively large, which is not conducive to the stability of the workpiece and subsequent processing; such shape correction will also change The geometric dimensions of the workpiece should have, so it is not suitable for correcting the shape of the workpiece with high precision requirements

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