On-line detection and compensation system applied to bend processing

Abstract

The invention relates to an on-line detection and compensation system applied to bend processing. The on-line detection and compensation system comprises a numerical control pipe bender, an image acquisition device and a numerical control system, wherein the numerical control pipe bender is used for pipe bend processing; the image acquisition device is used for acquiring an image; the numerical control system is used for realizing on-line detection and compensation; the bend station of the numerical control pipe bender is positioned in the visual range of the image acquisition device; the numerical control system comprises an action execution module, an image acquisition module, an on-line detection module and a real-time compensation module; the action execution module is used for controlling the work of the numerical control pipe bender; the image acquisition module is used for acquiring the springback condition of the bent pipe shot by the image acquisition device; the on-line detection module is used for computing the current value after springback according to the acquired image; and the real-time compensation module is used for performing dynamic feedback control on a compensation parameter of the next bent pipe according to a springback error between the current value and the designed value. The on-line detection and compensation system has the advantages of high reliability and effective improvement on bending accuracy.

Description

Technical field [0001] The invention belongs to pipe bending processing equipment, in particular to an online detection and compensation system used in pipe bending processing. Background technique [0002] In the process of bending and forming pipe parts, the metal material is deformed by force and is bent into an angle. When the external force is removed, the bent pipe part returns to its original condition. The measured pipe bending angle is smaller than the required bending angle, and the length of the straight section will be larger than the required length. This is what is usually called the return of the pipe. bomb. [0003] There are many factors that affect the rebound, such as the material, diameter, wall thickness, bending radius, bend angle, and process parameters used by the pipe bender, which will affect the rebound of the pipe. The process parameters (bending speed, clamping force, etc.) of the pipe bender are determined after the pipe bender is adjusted. [0004] T...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the disadvantages of poor reliability and low bending precision of existing bending pipe compensation methods, the present invention provides an online detection and compensation system for pipe bending processing with good reliability and effective improvement of bending precision

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