Steel strip punching processing detection system and method based on vision measurement

Abstract

The invention discloses a steel strip punching processing detection system and method based on vision measurement. The method comprises steps: a linear motor is controlled to drive a camera to move tothe right from a working origin point O arranged at the left side of the steel strip, a first image of the upper surface of the steel strip is acquired, a left-side edge of a punching steel strip isdetermined, and the actual movement distance Xa' when the linear motor moves to the left-side edge of the steel strip from the working origin point O is calculated; the linear motor is controlled to drive the camera to move to the right continuously, the camera acquires multiple second images of the upper surface of the steel strip, punching feature information on the second images is recognized,and in combination with a pixel equivalence gamma, the detection result of the punching feature information is determined; and the camera moves to the right continuously and acquires a third image ofthe upper surface of the steel strip, the right-side edge of the punching steel strip is recognized and determined, and the actual movement distance Xb' from the working origin point O to the right-side edge is calculated. The camera is used to realize wide-size punching steel strip processing detection, the detection result is precise, and high-precision detection requirements are met.

Description

technical field [0001] The invention relates to detection technology, in particular to a detection system and method for steel strip punching processing based on vision measurement. Background technique [0002] The punched nickel-plated steel strip is a product obtained by punching holes on the surface of the cold-rolled white steel strip, and then performing electrochemical nickel plating. It has good electronic conductivity and corrosion resistance, high cost performance, suitable for large-scale continuous production, and is widely used as a current collector material for batteries. At present, it is mainly used in the fields of MH-Ni battery, nickel-cadmium battery for tools, sintered battery for military industry and battery plate manufacturing for rail transit. [0003] The punching (punching) process in the process of punching nickel-plated steel strip is a key link in product formation, and key technical indicators such as punching hole diameter, horizontal hole di...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the technical problem in the prior art that a single camera cannot be used to detect punching holes in steel strips with a wider size under the premise of satisfying the accuracy, the present invention proposes a system and method for punching processing detection of steel strips based on visual measurement. On the basis that the resolution of the steel strip surface image acquired by the camera meets the detection accuracy requirements, the motion accuracy of the linear motor is improved by compensating the motion of the linear motor. Realize the conditions and meet the high-precision detection requirements

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