Non-contact laser online detection bar straightness mechanism and detection method

Abstract

The invention discloses a non-contact laser online detection bar straightness mechanism and a detection method. The mechanism includes a laser rangefinder, an industrial control computer, a programmable logic controller and a clamping mechanism. The laser rangefinder is mounted on a bar pressure straightening machine and used for acquiring distance data to the bar surface on a real-time basis, and there is a gap between the laser rangefinder and the bar in the data acquisition; the industrial control computer is connected with the laser rangefinder, and used for receiving and processing the data acquired by the laser rangefinder, drawing a straightness curve of the bar, and converting the analysis results into action commands and feeding the action commands back to the programmable logic controller; the programmable logic controller is connected with the industrial control computer, and used for receiving the signals sent in by the industrial control computer and outputting action instruction to a bar pressure straightening machine; and the clamp mechanism is connected to the industrial control computer, and used for clamping bar at both ends, so that the bar passes before the laser rangefinder. The invention provides basis for bar straightening, improves the straightening efficiency and the rate of qualified products, and can be widely used in metallurgy and other heavy machinery industries.

Description

technical field [0001] The invention belongs to the field of material shape detection, and relates to a bar straightness mechanism and detection method, in particular to a non-contact laser on-line detection bar straightness mechanism and detection method applied to a bar pressure straightening machine. Background technique [0002] In the bar manufacturing industry, due to the possible bending deformation of the bar during processing and heat treatment, when the bar deforms beyond a certain level, it cannot be processed into a product and will be scrapped. Therefore, it is necessary to straighten the bar after processing and heat treatment. straight processing. The pressure straightening machine is to support the workpiece with the original bending between the two movable fulcrums of the workbench, and use the pressure head to align the most curved place for reverse bending. When the bending amount is equal to the springback amount , the curved part of the workpiece become...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems of lack of basis for straightening rods by manual experience, resulting in the inability to guarantee the straightness of the rods and low detection efficiency, the invention provides a non-contact laser on-line detection of rod straightness mechanism and detection method

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