On-line detection and compensation system applied to bend processing
A compensation system and pipe bending technology, which is applied in general control systems, control/adjustment systems, instruments, etc., can solve the problems of low bending accuracy and poor reliability, and achieve the effect of improving bending accuracy and good reliability
Inactive Publication Date: 2012-08-29
杭州捷塔科技有限公司
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[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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[0021] The present invention will be further described below in conjunction with the accompanying drawings.
[0022] refer to figure 1 , figure 2 , an online detection and compensation system for pipe bending, including a numerically controlled pipe bending machine for pipe bending, an image acquisition device for image acquisition, and a numerically controlled system for on-line detection and compensation system, the pipe bending station of the CNC pipe bending machine is located within the visual range of the image acquisition device, and the numerical control system 1 includes:
[0023] The action execution module is used to control the work of the CNC pipe bender. When performing bending, the processing bending angle is θ′=(1+K)θ+θ 1 , where θ is the tube design value, θ 1 is the theoretical rebound value, K is the compensation parameter; θ 1 The calculation formula is as follows:
[0024] θ 1 = ...
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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] During the bending and forming process of pipe parts, the metal material is deformed by force and is bent into an angle. When the external force is removed, the part of the bent pipe returns to its original state. The measured bending angle of the pipe is smaller than the required bending angle, and the length of the straight line section is larger than the required length. This is what is usually called the return of the pipe. bomb. [0003] There are many factors that affect springback, such as pipe material, diameter, wall thickness, bending radius, corner size, and process parameters used by the pipe bender, etc., all of which will affect the springback of the pipe. Among them, the process parameters (bending speed, clamping force, etc.) of the pipe bender are deter...
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IPC IPC(8): B21D7/14G05B19/404
Inventor 蔡东海赵章风李克彬林伟明
Owner 杭州捷塔科技有限公司