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A method and system for controlling bending of high-strength steel

A high-strength steel and high-strength steel plate technology, applied in the field of control, can solve problems such as unfavorable development of new products, and achieve the effects of avoiding a large number of repeated tests, saving materials and time, and improving efficiency

Active Publication Date: 2016-12-28
ZOOMLION HEAVY IND CO LTD
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  • Abstract
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  • Claims
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Problems solved by technology

However, the feed rate in the prior art is obtained through several tests, which is not conducive to the development of new products

Method used

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  • A method and system for controlling bending of high-strength steel
  • A method and system for controlling bending of high-strength steel
  • A method and system for controlling bending of high-strength steel

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Embodiment Construction

[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0019] Due to the springback characteristics of high-strength steel itself, in order to improve efficiency and save test costs, it is necessary to perform some numerical simulation work before bending high-strength steel. Perform some simulations with the bending machine to obtain the required process parameters, such as the initial bending angle and the target bending depth. According to the conversion of these parameters, the pressure that the bending machine needs to be loaded, the deflection compensation and the displacement of the oil cylinder of the bending machine can be obtained. Controlling the bending machine to work according to these parameters can e...

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Abstract

The invention discloses a method and system for controlling bending of high-strength steel. The method comprises the steps that firstly, the primary bending angle and the target bending depth of the high-strength steel to be bent are calculated by means of numerical simulation; secondly, deflection compensation is conducted on machine frame deformation of a bending machine, and pressure needing to be exerted on the bending machine is calculated; thirdly, the bending machine is controlled to bend the high-strength steel according to the target bending depth, the deflection compensation and pressure needing to be exerted. The method and system achieves automatic simulation of high-strength steel material research and the whole bending process and system integration and process automation of bending forming equipment, and avoids repeated manual operation, results are calculated in a simulating mode, a large number of repeated tests are avoided, material and time are saved, and efficiency is improved.

Description

technical field [0001] The invention relates to the field of control, in particular to a method and system for controlling the bending of high-strength steel. Background technique [0002] figure 1 It is a schematic diagram of the general bending machine structure, which can be divided into upper mold and lower mold, and the middle shaded part is high-strength steel (such as high-strength steel plate). By fixing the lower mold, the upper mold moves down to bend the high-strength steel plate. The displacement of the upper die moving down is called the feed amount d. Such as figure 2 As shown, due to the rebound phenomenon of high-strength steel plate, in order to obtain the required bending angle θ 0 , the actual bending angle must be one less than θ 0 angle θ 1 . If after removing the upper mold, the bending angle of the high-strength steel plate just rebounds to θ 0 , it means that the feed rate d is appropriate. Such as image 3 The high-strength steel plate sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 钟懿邓创华刘立成王霄腾周浩
Owner ZOOMLION HEAVY IND CO LTD
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