在机械结构中,类似图1所示的薄壁衬套的装配变形是不可忽视的,它直接影响到衬套内表面与轴之间的配合间隙。为了消除或减少装配变形的影响,不少工厂在装配衬套后还进行一次机加工或钳工修刮,使衬套孔径恢复到设计尺寸。为简化工序,提高工效,修正衬套 In the mechanical structure, similar to Figure 1, the thin-walled bush assembly deformation can not be ignored, it directly affects the inner surface of the sleeve and the shaft between the gap. In order to eliminate or reduce the impact of deformation of the assembly, many factories in the assembly of bushings also carried out a machining or fitter repair, the bushing bore diameter restored to the design size. To simplify the process, improve work efficiency, amendment bushing