A method for online detection of spatial position and dimension accuracy of cold rolling mill window

Abstract

The invention discloses an online detection method for size precision of the space position of a window of a cold rolling mill, belongs to space position size measurement of metallurgical equipment, and particularly relates to size detection of the space position of the window of the rolling mill. The method is characterized in that a laser detection device is adopted for detection, and the methodcomprises the following steps of arrangement of a workstation, detection and establishment of a ground horizontal plane, a rolling production center line and the original point of a rolling mill window coordinate system, rack window lining board face detection and opening size precision analysis. The method has the advantages that the conception is novel, equipment operation is convenient, the number of personnel is small, efficiency is high, and the space opening size of a window lining board of a rolling mill unit can be detected accurately; and the size precision state of the space of thewindow of the cold rolling mill can be known intuitively, the operation state and degradation tendency of the size precision of the space of equipment are mastered, the precision management working level of the rolling mill is improved, the rapid production rhythm requirement of the cold rolling mill is met, and smooth steel rolling production is ensured.

Description

Technical field: [0001] The invention belongs to the measurement of the spatial position and size of metallurgical equipment, in particular to the detection of the spatial position and size of a window of a rolling mill. Background technique [0002] The cold rolling mill usually adopts HC6 roll structure. The rolling mill consists of the operation side and the driving side rack. The mill window includes the upper backup roll area, the upper intermediate roll area, the upper work roll area, the lower work roll area, the lower intermediate roll area, and the lower support roll area. roll area. The dimensional accuracy of the spatial position of the rolling mill window mainly includes the opening size between the liner plates of the rack windows, the symmetry of the window symmetry of each roll area of ​​the operating side rack, the symmetry of each roll area window of the driving side rack, and the windows of the operating side rack and the driving side rack. The dimensional...

AI Technical Summary

Problems solved by technology

Due to the influence of uneven foundation settlement, running wear and corrosion, poor maintenance accuracy, etc., the opening size between the window liners of the frame is out of tolerance, and the symmetry of the window liner between the operating side frame and the driving side frame is out of tolerance, etc. The dimensional accuracy of the frame window is reduced, it is difficult for the roll to be fed into the window of the rolling mill, a large cross axis is formed between the rolls and the roll system, the axial force of the roll becomes larger, and it is easy to cause strip deviation, poor plate shape, high vibration value, coiling tower Shape, abnormal wear of equipment, reduce production stability and product quality, and reduce production capacity

At present, tools such as drawing steel wire, hanging hammer, earphone, micrometer and other tools are often used to comprehensively detect the spatial size of the window space in the rolling mill window. The detection time is long, the number of participants is large, and the efficiency is low. It is only suitable for the detection of rolling mill equipment installation and commissioning stages. ; After the rolling line is put into production, many rolling equipment components are installed on the rolling mill, and the steel wire and suspension hammer cannot be installed. Therefore, the above method cannot be used to detect the dimension accuracy of the rolling mill window space, the position of the operating side and the driving side frame on-line after the rolling mill is put into production. Window symmetry and other spatial position and dimension accuracy; usually a micrometer is used to measure the opening size of the window liner plate in a single area, but it cannot detect the mutual positional relationship of the spatial dimensions such as the window symmetry of each roll area on the operating side and the driving side rack. If the symmetry is out of tolerance, a large cross axis will be formed between the rolls in the rolling state, which will seriously affect the stable operation of rolling production and product quality

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