Machine vision-based flexible roll forming device and calibration method

Abstract

The invention discloses a machine vision-based flexible roll forming device and a calibration method, belongs to the field of roll forming technology and equipment, and is used for controlling the rebound of roll formed products. The flexible roll forming device comprises a forming machine, a base, a guide rail and a calibration device fixed on the base, a machine vision detection device and a computer control system, wherein the calibration device is arranged on the guide rail; the machine vision detection device is arranged on the front and rear of the calibration device; and the computer control system processes signals detected by the machine vision detection device and controls the motion of the calibration device. Through the device, in the roll forming process, a plate passes through the forming machine, is detected and controlled by the machine vision detection device and the computer control system, and is calibrated twice by the calibration device which is controlled by the computer control system, so that errors caused by rebound can be effectively reduced. The forming device can realize on-line monitoring, improves the accuracy of processed products, is convenient to operate, and is safe and reliable.

Description

technical field [0001] The invention relates to a flexible roll forming device and calibration method based on machine vision, which belongs to the field of roll forming technology and equipment and is used for controlling the rebound of roll forming products. Background technique [0002] Roll forming is a processing method in which sheet metal is continuously formed into a product with a certain cross-sectional geometry by a series of rolls arranged in series. Roll forming is a new material-saving, energy-saving and efficient metal forming process and new technology. It has a wide range of applications and has become one of the most commonly used sheet metal processing methods for mass production. [0003] As the material of roll forming products is developing from ordinary carbon steel to high-strength steel, various high-strength steel plates are more and more widely used in roll forming products, and the springback of high-strength steel after roll forming The amount o...

AI Technical Summary

Problems solved by technology

This method has at least the following defects: it needs to be loaded twice, and the metal sheet must be turned over each time during the forming process, resulting in long processing and forming time and low efficiency

Since the springback of different sheets is different, using the Bauschinger effect to control the springback has low precision and poor adaptability

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