A detection system and method for steel strip punching processing based on vision measurement

A technology of visual measurement and detection method, which is applied in the detection field and can solve problems such as punching detection of wider steel strips, and achieve the effects of improving motion accuracy, facilitating surface image processing, and simplifying the difficulty of image processing

CN107907063BActive Publication Date: 2020-05-12HUNAN UNIV OF ARTS & SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-05-12

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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.
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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...

Examples

Embodiment Construction

[0042] combine figure 1 As shown, the present invention proposes a steel strip punching processing detection system based on visual measurement, which mainly includes an industrial computer, at least one detection terminal and a lighting system located below the punched steel strip. The detection terminal and the lighting system are all connected to the industrial computer Connected, the lighting system provides a light source with stable brightness and no flickering so that the detection terminal can collect the upper surface image of the punched steel strip (also known as "steel strip surface image" or "steel strip upper surface image" or "steel strip image" even "surface images").

[0043] The existing punching processing production line already has a steel strip processing control system, which includes a control host and a winding device. The industrial computer is connected with the control host through the RS232 interface, and communicates with the control host using t...