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.