Shaft part surface strengthening device capable of realizing constant-pressure self-balance and machine tool

Abstract

The invention discloses a shaft part surface strengthening device capable of realizing constant-pressure self-balance and a machine tool. The shaft part surface strengthening device comprises a support, rolling devices and a position and pressure adjusting device, and the support is of an annular structure; the plurality of rolling devices are sequentially arranged around the circular ring-shapedstructure; and each rolling device is fixedly connected with a sliding block, the sliding blocks are connected with a sliding rail arranged in the radial direction of the annular structure, the sliding blocks are connected with the position and pressure adjusting device, the position and pressure adjusting device drives the sliding blocks to move along the sliding rail, and then the rolling devices are driven to move in the radial direction of the support.

Description

technical field [0001] The invention belongs to the technical field of shaft parts processing, and in particular relates to a shaft part surface strengthening device and a machine tool capable of realizing constant pressure self-balancing. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, most of the ultrasonic vibration-assisted rolling devices for shaft parts are installed on the tool holder of the lathe, and the rolling head is used to replace the turning tool for processing. The inventors found that this brings about the problem of radial unbalanced force, and due to the cylindricity error of the shaft parts, radial vibration is caused, which makes the pressure of the rolling head on the surface of the parts fluctuate, affecting the processing quality. Moreover, studies have shown that in order to achieve a good strengthening effect,...

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Problems solved by technology

The inventor found that this brought about the problem of radial unbalanced force, and the radial vibration caused by the cylindricity error of the shaft parts caused fluctuations in the pressure of the rolling head on the surface of the parts, affecting the processing quality

Moreover, studies have shown that in order to achieve a good strengthening effect, that is, the grains on the surface of the part reach the nanometer level, several passes of rolling processing are required, which reduces the processing efficiency and increases the workload of workers.

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