Synchronous Lifting Control Method and Device for Double Cylinders of Deburring Machine

Abstract

The invention relates to a synchronous lifting control method for two oil cylinders of a deburring machine. The synchronous lifting control method for the two oil cylinders of the deburring machine comprises the following steps that the piston displacements h1 and h2 of the two oil cylinders are collected correspondingly; when |h1-h2|<=a, the two oil cylinders are kept moving at the speed of V1; when |h1-h2|>a, whether h1 is greater than h2 or not is judged; when h1>h2, the first oil cylinder stops moving, and the second oil cylinder continues to move at the speed of V1; when h1<h2, the second oil cylinder stops moving, and the first oil cylinder continues to move at the speed of V1; when h1=h2, the two oil cylinders move at the speed of V1; when h-h1<=b, the two oil cylinders move at the speed of V2; and when h=h1, synchronous lifting control over the two oil cylinders of the deburring machine is completed. The invention further provides a synchronous lifting control device for the two oil cylinders of the deburring machine. By the adoption of the method and device, the two oil cylinders of the deburring machine can be made synchronous, so that the service life of the oil cylinders is prolonged, and the deburring cost is reduced.

Description

technical field [0001] The invention belongs to the field of continuous casting production, and in particular relates to a method and device for synchronous lifting control of double oil cylinders of a deburring machine. Background technique [0002] In the continuous casting production process, the billet is cut into pieces under the action of the high-speed flame of the flame cutting machine. During the cutting process, the high-temperature steel flow forms molten steel at the bottom of the billet (the position of the kerf), and hard burrs are formed after cooling. That is to say, a steel burr will be left on the bottom of the continuous casting slab during the cutting process. Since the burr is mainly composed of molten steel and impurities, its adhesion to the slab is very strong, so it is difficult to remove the burr from the slab, and the burr will enter the subsequent hot rolling process together with the slab, which will not only cause damage to the roll, Problems s...

AI Technical Summary

Problems solved by technology

Since the burr is mainly composed of molten steel and impurities, its adhesion to the slab is very strong, so it is difficult to remove the burr from the slab, and the burr will enter the subsequent hot rolling process together with the slab, which will not only cause damage to the roll, Problems such as meat loss will also lead to quality defects such as scarring, cracking, and inclusions in the strip steel, which greatly reduces the yield of the strip steel, so it is of great significance to improve the deburring rate of the slab

However, the existing deburring machines usually include two oil cylinders, which are respectively located at both ends of the rotating shaft. The lifting of the rotating shaft is mainly realized through the expansion and contraction of the oil cylinders. The machine effect is not ideal, and the service life of the oil cylinder is short, which increases the cost of deburring

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