Loading device for prestress circumferential abrasive belt grinding annular part

Abstract

The invention discloses a loading device for a prestress circumferential abrasive belt grinding annular part. A sliding bearing seat is arranged on a bottom plate. A clamp body is installed on the sliding bearing seat. The middle of the clamp body is provided with a left-big right-small taper shaft which is sleeved with an expansion sleeve matched with the taper shaft. An unloading nut is arranged on the left side of the expansion sleeve. A loading nut is arranged on the right side of the expansion sleeve. A fixed shaft is arranged on the left side of the clamp body and rotationally installed on a fixed bearing seat. The bottom of the fixed bearing seat is supported by the left end of the bottom plate fixedly. The left end of the clamp body can be put in a matching hole in the right end of the fixed shaft in a sleeved mode, and thus the fixed shaft and the clamp body are connected together fixedly. The loading device is simple in structure, easy to achieve, capable of achieving loading and unloading easily, flexible to operate and wide in application range. Through pretightening of the loading nut, applying of different-magnitude prestress can be controlled actively in a certain range, unloading of circumferential prestress of a workpiece is achieved through the unloading nut, and the distribution state of surface residual stress can be controlled actively to achieve the effect that the fatigue life of the workpiece is improved.

Description

technical field [0001] The invention belongs to the technical field of abrasive belt grinding, and in particular relates to a loading device for prestressed circumferential abrasive belt grinding ring parts, which is suitable for prestressed abrasive belt grinding of ring parts. Background technique [0002] Since the residual stress on the workpiece surface directly affects the mechanical and physical properties of the workpiece after grinding, it is often used as an important evaluation index for the surface quality of the workpiece. The surface of the workpiece after traditional grinding wheel grinding often forms residual tensile stress, which is not conducive to improving the fatigue strength and corrosion resistance of the workpiece. [0003] Abrasive belt grinding is an emerging precision machining technology. Because of its low grinding temperature, good processing quality, and strong adaptability, the surface of the workpiece after grinding is often in a state of re...

AI Technical Summary

Problems solved by technology

[0006] In view of the continuous improvement of the processing quality requirements of the existing abrasive belt grinding on the workpiece, the technical problem to be solved by the present invention is to provide a loading device for prestressed circumferential abrasive belt grinding ring parts

Images