Ring rolling machine controlled by core roll rotation drive

Abstract

The invention relates to a ring rolling mill capable of driving and controlling rotation of a core roller. The ring rolling mill comprises the core roller and a driving roller which can initiatively rotate and conduct linear feeding. The ring rolling mill is characterized in that the core roller can initiatively rotates and is controllable in speed, and the core roller can achieve switching of the two modes of initiative driving and follow moving in the working process. According to the ring rolling mill, the driving roller initiatively rotating and driving and the core roller initiatively rotating and driving can be adopted at the same time, in the rolling process, stress of a deformation area of a rolled ring part is controllable by controlling the rotating speed of the core roller, matched friction force can be generated on the inner and outer contact surfaces of the rolled ring part, so that uniform radial deformation is generated, and thus the uniformity of the internal texture of the rolled ring part is greatly improved; the ring rolling mill is low in cost, easy to achieve and suitable for production of ring-shaped parts which are high in material microstructure uniformity requirement, good in quality and precision retainability and long in service life.

Description

technical field [0001] The invention belongs to the field of ring rolling machines, and in particular relates to a ring rolling machine controlled by core roll rotation drive. Background technique [0002] The ring rolling machine commonly used in my country has a simple structure. The driving roller is driven to rotate through the motor and the reduction box, and the driving roller is driven to move in a straight line through hydraulic pressure or air pressure. When the pass is formed with the core roll, the ring blank will be deformed with a reduced thickness and a larger diameter. This ring rolling machine has a simple structure, easy manufacture, cheap price, and wide application, and can produce ordinary ring products conveniently and quickly. [0003] In the existing ring binding machine, the core roll is a follower during the rolling process, and the core roll will rotate due to friction with the inner surface of the ring, so the rotation speed of the core roll has a l...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the internal structure of the existing ring rolling machine causes uneven distribution of internal crystal grains and hard phases due to severe uneven strain distribution, resulting in short service life, poor precision and quality retention of ring products, the purpose of the present invention is to Provided is a ring rolling machine controlled by core roll rotation drive, which increases the active control of core roll rotation on the basis of ordinary ring rolling machines, and adopts actively rotating drive rolls and actively rotating core rolls to form a mold that is beneficial to plasticity Stressed state of deformation uniformity, low cost, easy to realize, and can greatly improve the internal structure uniformity of rolled rings

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