Stable piercing header box for seamless steel pipe

Abstract

The stable piercing plug box comprises a main box body, a clamping cavity with a rightward opening is formed in the main box body, and clamping plates capable of moving up and down are symmetrically arranged on the upper side and the lower side in the clamping cavity. At the moment, the outer end face of the working plate is stably clamped and supported through the damping clamping plate by the clamping plates moving close to each other, so that the stability of subsequent rolling work is improved, and meanwhile, in the rolling work process, after vibration generated by rotation of the feeding rotating wheel is input to the surface of the damping clamping plate, preliminary damping is conducted through a damping spring, and then the stability of the rolling work is improved. After the damping clamping plate inputs force through the damping connecting rod, the surface of the contact connection portion of the damping plate and the friction plate is rough, the vibration force is further reduced by increasing the friction force, finally, further damping is conducted through the damping spring, and then the input stability of the pipe blank is further improved.

Description

technical field [0001] The invention relates to the technical field of metal rolling, in particular to a stable perforated header box for seamless steel pipes. Background technique [0002] In the rolling process of seamless steel pipes, it is necessary to make the seamless steel pipes through the metal rolling process after the tube blanks are input through the rolling cylinder and then deformed in contact with the piercing plugs. In the rolling and piercing of seamless steel pipes, the piercing plugs It plays a very important role, and the general steel pipe piercing and rolling machine simply completes the subsequent rolling work after the piercing plug is installed and rotated. If it is well adapted to rolling work, the service life of the piercing plug will be reduced, and there will be more defects in the manufactured seamless steel pipe. Contents of the invention [0003] The object of the present invention is to provide a stable perforated header box for seamless ...

AI Technical Summary

Problems solved by technology

[0002] In the rolling process of seamless steel pipes, it is necessary to make the seamless steel pipes through the metal rolling process after the tube blanks are input through the rolling cylinder and then deformed in contact with the piercing plugs. In the rolling and piercing of seamless steel pipes, the piercing plugs It plays a very important role, and the general steel pipe piercing and rolling machine simply completes the subsequent rolling work after the piercing plug is installed and rotated. It is well adapted to rolling work, which will reduce the service life of the piercing plug, and there will be more defects in the seamless steel pipes produced

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