开放式加工设备整机静动态特性分析及其优化

摘要

以开放式铝材构件加工设备为研究对象,对整机结构进行了静动态特性分析及其优化设计.分析了考虑切削力情况下整机静力变形情况与各部件变形量占系统总变形量的百分比、找出了系统静刚度的薄弱环节;通过整机模态分析获得了前6阶固有频率及振型,找出了整机动态特性薄弱环节;对薄弱环节——横梁及滑枕进行了优化.为研究此类加工设备静动态特性及其结构优化设计提供理论基础,有助于提升窄长铝材构件加工质量,促进相关行业发展.%Taking the open frame machining equipment for aluminum components as the research object, an-alyze the static and dynamic characteristics of the whole machine structure and optimize the fracture. Ana-lyze the static deformation of machining equipment considering the cutting force and the percentage of the deformation of each component to the system, the weak parts of the system static stiffness can be found. Ac-cording to the modal analysis, the first six order natural frequency and the mode shape can be obtained, then the weakness of the system dynamic performance can be found. Finally,the weak parts such as the beam and ram, which is the weakness of the machining equipment have been optimized. The study provides a theoreti-cal basis for the static/ dynamic performance analysis and structure optimization for this kind of machining e-quipment. The study can improve the processing quality of the long narrow aluminum components and pro-mote the development of the relative industries.