Straightness measuring method and device, electronic equipment and storage medium

Abstract

The invention provides a straightness measurement method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring height values of a plurality of position points of a moving to-be-measured object; calculating the height values to obtain first straightness of the plurality of position points; and processing the first straightness of the plurality of position points to obtain the target straightness of the to-be-measured object. The method comprises the following steps: dynamically measuring height values of a plurality of position points on the surface of a to-be-measured object by adopting a plurality of groups of laser three-point measurement modules based on a triangulation method, calculating movement lengths by combining the movement speed of the to-be-measured object, and calculating first flatness and target flatness indexes capable of reflecting flatness defects on the surface of the to-be-measured object by integrating the plurality of movement lengths; meanwhile, the straightness defect type of the to-be-detected object can be comprehensively judged according to the first straightness fitting polynomial of the multiple position points; the precision and accuracy of the straightness measurement result are improved, and the device has the capability of continuous, online, real-time and automatic measurement.

Description

technical field [0001] The present application relates to the technical field of flatness detection, in particular, to a flatness measurement method, device, electronic equipment and storage medium. Background technique [0002] In industrial production, the quality of rolled metal sheets and strips is often measured by its shape, size, surface quality, mechanical properties and other parameters, among which flatness is an important indicator of shape control. As the flatness is the least controllable index in the quality of rolled metal sheets and strips, it will directly affect the yield and subsequent processing of rolled metal sheets and strips. Therefore, the flatness value of sheets and strips is usually used as Input signal of feedback control system for strip rolling to improve rolling quality. [0003] At present, the detection technology of flatness is developing towards the direction of online real-time, and the tension method, electromagnetic method, optical met...

AI Technical Summary

Problems solved by technology

By reducing the measurement error, the accuracy of the measurement result is improved, and the problem that the real flatness defect cannot be truly reflected is solved.

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