Fixed-hole fixed-length continuous shearing method of basic bore system section steel

Abstract

The invention relates to a continuous shearing method of a basic hole system section with fixed hole and fixed length, which is characterized in that length measurement is carried out by counting the number of basic hole system section fabrication holes, the relative position of the section and a cutting device is locked by inserting plug pins into the fabrication holes after the length measurement so as to realize the static synchronous following of the flying shearing process; the static synchronous following is adopted to replace the dynamic synchronous following in servo flying shearing, which improves the precision of scale flying shearing; and a screw rod adjusting device is adopted to adjust the spacing between the plug pins and a cutting die, which can adapt to batch products with different benchmark sizes. The method has the advantages of precise shearing, stability and reliability, convenient installation, simple and compact structure, convenient operation, and is economical and practical. The method leads the system to run reliably and have high synchronization precision and small scale error, is applicable to shearing the basic hole system sections of various specifications, and has wide generalization and application values.

Description

technical field [0001] The invention relates to a method for continuous cutting of fixed holes and fixed lengths for profiles made with base holes, in particular to a method for continuous cutting of fixed holes and fixed lengths applied to production lines for base holes made of profiles such as storage shelves, and is widely used in various The utility model relates to a production line of fixed-length flying shears for storage and supermarket shelves, and belongs to the technical field of fixed-length flying shears electrical control. Background technique [0002] At present, there are mainly two methods of fixed-length shearing and fixed-length flying shearing currently available at home and abroad for general profiles. The fixed-length stop-shearing control is simple and the cutting-to-length accuracy is high. The disadvantage is that the production efficiency is low. For large-scale rolling equipment, frequent start and stop will affect the life of the equipment; curre...

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Problems solved by technology

[0002] At present, there are mainly two methods of fixed-length shearing and fixed-length flying shearing currently available at home and abroad for general profiles. The fixed-length stop-shearing control is simple and the cutting-to-length accuracy is high. The disadvantage is that the production efficiency is low. For large-scale rolling equipment, frequent start and stop will affect the life of the equipment; currently, fixed-length flying shears generally use block positioning flying shears and servo automatic following flying shears. The control of block positioning flying shears is relatively simple, and the cutting table is driven by the profile itself. The disadvantages of following flying shears are frequent block adjustment, complex structure, poor product adaptability, and low production efficiency; servo automatic following flying shears has a simple structure and smooth production line, but its disadvantages are complex control, high equipment cost, and low follow-up The process is susceptible to external environmental influences

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