A continuous translation rolling mill and rolling method thereof

Abstract

The invention relates to a continuous translational rolling mill and a rolling method thereof, comprising setting an upper roll and a lower roll horizontally, a first rolling groove is set on the lower surface of the upper roll, and a second rolling groove is set on the upper surface of the lower roll. Both the first rolling groove and the second rolling groove are waveforms; the upper roll can perform horizontal reciprocating movement relative to the lower roll, and at the initial position, the first rolling groove and the second rolling groove can engage with each other. In the present invention, the upper roll and the lower roll are arranged opposite to the rolling groove. The difference between the upper roll and the lower roll is one corrugated tooth. After assembly, the wave crest and the wave trough are opposite. While applying compressive stress to the blank, a tangential shearing action is generated on the blank. Under the action of compressive stress and shear stress, the deformed body is more likely to enter the plastic deformation state, and at the same time, it can reduce the deformation load, which is beneficial to the plastic deformation process of the material. At the same time, it can eliminate some micro-defects inside the blank, and can meet the continuity of the workpiece Processing, high processing precision.

Description

technical field [0001] The invention belongs to the technical field of cold rolling dies for metal materials, and in particular relates to a continuous translation rolling mill and a rolling method thereof. Background technique [0002] Shaft parts are one of the typical rotary parts commonly seen in the mechanical industry. They are widely used in many fields such as machine tools, automobiles, and aerospace, and most of them are the core components of equipment. It plays the role of supporting other parts and transmitting torque in the machine. If the shaft parts fail, the motion accuracy of the parts on the shaft will be difficult to guarantee, the service life of the parts on the shaft will be shortened, and it may even lead to unpredictable catastrophic accidents. For this reason, it is particularly important to improve the forgeability of shaft parts during rolling forming and the continuity of the billet making process. [0003] Rolling mill is the main equipment to...

AI Technical Summary

Problems solved by technology

However, with the progress of the rolling process, the change of the friction force between the upper and lower rolls leads to fluctuations in the rolling force, which cannot meet the accuracy of the workpiece.

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