Compensatory turning method for three-high stand

Abstract

The invention discloses a compensatory turning method for a three-high stand, which comprises the steps of: controlling a tool to turn a small groove on the surface of a roll collar according to the following mode: selecting a turning tool which has a corresponding pass and is at an angle of 120 degrees, knocking the turning tool to an initial position, rotating the tool to rotate counter-clockwise by 58 degrees, manually feeding the tool by 1 to 2mm and then rotating the tool by 3 degrees to 5 degrees; retracting the tool to the initial position, measuring a micrometer size, calculating out a compensation route according to the measured micrometer size and a size of the tool, and carrying out compensatory tool feeding. Adoption of the method has the advantages of flexible operation mode, simple and efficient operation method, short operation time and high machining efficiency.

Description

Technical field [0001] The invention relates to the technical field of numerical control processing, in particular to a three-roller frame compensation turning method. Background technique [0002] At present, the overall equipment level of seamless pipes in my country is not high. According to the requirements of the national "Iron and Steel Industry Policy", standing at the height of optimizing the product structure and equipment level of the overall steel industry, improving the level of seamless pipe production and the competitiveness of enterprises Must do. The continuous pipe rolling mill is considered to be the most promising pipe rolling mill due to its large production scale, high yield rate, low investment per ton of material, and wide variety of suitable production. There are two main types of continuous tube rolling mills: MPM tube rolling mill and PQF tube rolling mill. The PQF rolling mill is more advanced than the MPM tube mill due to the combination of the typica...

AI Technical Summary

Problems solved by technology

The disadvantages are: 1. 80% of the turning of the three-roller frame is close to the hole shape and the turning amount is between 0-5mm (meeting the condition of one-cut turning). Limited by the fixed program, multi-tool turning is necessary, and the processing efficiency is low. Nowadays, when the rack is frequently used, it cannot meet the current needs, resulting in very passive production; 2. The wear of the multi-tool turning blades seriously increases the surface roughness of the rolls, and steel sticking occurs when rolling steel on the line, resulting in the degradation of the quality of the steel pipes and reducing the machine. 3. The blade wears quickly and the passivation is serious during turning, which is easy to cause chipping and waste products, and the consumption of tools and roller rings is high, costly and wasteful

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