Torsion cold hardening device for improving strength of steel bar base material

Abstract

The invention aims at providing a torsion cold hardening device for improving the strength of a steel bar base material. The device comprises a motor, a steering gear shaft, a steel bar transmission shaft and a torsion cold working cabin, wherein the motor is connected with the steering gear shaft through a transmission belt; the steel bar transmission wheel comprises an upper steel bar transmission wheel and a lower steel bar transmission wheel; the steering gear shaft is connected with the upper steel bar transmission wheel; the upper steel bar transmission wheel is connected with and drives the lower steel bar transmission wheel through a transmission wheel torsion belt; a steel bar base material to be processed penetrates through the position between the upper steel bar transmission wheel and the lower steel bar transmission wheel and moves forwards and backwards along with the rotation of the upper steel bar transmission wheel and the lower steel bar transmission wheel; the torsion cold working cabin comprises a housing; a steel bar base material fixture, a torsion angle meter and a fixture pressure meter are mounted in the housing; a fixture adjuster is mounted on the steel bar base material fixture; and the steel bar base material to be processed penetrates through the torsion cold working cabin and is clamped by the steel bar base material fixture. According to the device, the material stress is uniform and the phenomenon of insufficiency caused by a reason that the material is thinned is avoided.

Description

technical field [0001] The present invention relates to a metal processing device, in particular to a torsional cold work hardening device. Background technique [0002] Steel is the most widely used material. It has a wide variety and is widely used in automobile manufacturing, shipbuilding, construction engineering, aerospace engineering, etc., covering almost all industries. It can be said that steel is everywhere in life. , Steel is everywhere. Over the years, people have tried every means to improve the mechanical properties of steel. For example, coating the surface of the steel, heat-treating the steel, etc., but these methods can only increase the hardness of the steel after all, while the method of cold work hardening can significantly improve the strength of the steel base material. Many kinds of cold work hardening devices have been applied and developed in engineering practice. [0003] Cold work hardening refers to the strong plastic deformation produced by t...

AI Technical Summary

Problems solved by technology

[0004] At present, the stretching cold hardening device is widely used in engineering. During the stretching process, the steel will have a necking phenomenon, and the material at the necked part will become thinner, which makes the plastic deformation of the material insufficient, and the cold hardening After the completion, except for the few materials in the middle of the necking area, the plastic deformation and strain strengthening of the materials in other parts are far from the actual strain strengthening ability of the material, and the effect of cold work hardening has not been fully reflected.

Images