摘要
高速回转夹具作为数控机床和车铣复合加工中心的重要功能部件,在机械加工中起到重要作用.建立了高速回转夹具的几何模型,对夹具关键零部件的接触方式进行了定义,采用ANSYS有限元分析方法分析了高速回转夹具在离心力存在的条件下的力学性能,研究了不同结构尺寸、材料及工作转速对夹具盘体应力、应变的影响.
As an important functional component of CNC lathes and turning-milling machining centers,high-speed rotary fixtures play an important role in machining.Because the high-speed rotary clamp has the characteristics of large plate structure and high working speed,huge centrifugal force will be generated during rotation,which leads to the safety problem of unreliable clamping during work.In this paper,the geometric model of the high-speed rotary fixture is established,the contact mode of the key parts of the fixture is defined,and the mechanical properties of the high-speed rotary fixture under the condition of centrifugal force are analyzed by the finite element analysis method,and the different structural sizes,the influence of materials and working speed on the stress and strain of the fixture plate body is studied,which lays the foundation for the subsequent fixture structure optimization and failure analysis.
作者
孙涛
SUN Tao(Department of Mechanical and Electrical Engineering,Anhui Vocational Collegeof Grain Engineering,Hefei 230011,China)
出处
《兰州文理学院学报（自然科学版）》
2022年第3期74-80,共7页
Journal of Lanzhou University of Arts and Science(Natural Sciences)
基金
2020年度安徽省高等学校自然科学研究项目(KJ2020A1140)
安徽省教育厅2019年质量工程校企合作示范实训中心项目(2019xqsxzx91)。
关键词
数控机床
高速回转夹具
有限元分析
力学性能
CNC machine tool
high-speed rotary fixture
finite element analysis
mechanical property
