切削液动压流变作用下BTA小深孔加工圆度形貌压电协同控制理论研究
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1.Deep hole connector design and oil film pressure study
- 关键词:
- Computer software;Fluid dynamics;Lubricating oils;Rigidity;Deep hole machining;Deep holes;Dynamic pressures;Fluid dynamic pressure lubrication;Fluid-dynamics;Holes machining;Lubrication /;Oil film pressure;Radial forces;Rigid
- Chen, Zhenya;Ma, Zhuoqiang;Li, Xiang;Miao, Hongbing;Yang, Shangjin;Li, Jian
- 《64th International Conference on Vibroengineering》
- 2023年
- September 21, 2023 - September 22, 2023
- Trieste, Italy
- 会议
Aiming at the problem of insufficient rigidity of the tool system and unbalanced radial force during deep hole machining, this paper designs a deep hole connector using the fluid dynamic pressure lubrication principle. The deep hole connector includes double-bridge strain gauges and tiltable tiles, which can increase the rigidity of the tool system by using the oil film support stiffness and offset the unbalanced radial force of synchronous detection by adjusting the oil film pressure in real time. First, the mathematical model of tiltable tile is established, the oil film thickness formula is derived, and the formula of oil film pressure is derived. Then, based on Fluent software, the fluid simulation of the deep hole connector is carried out. The simulation adopts a single-factor experiment method, and the change law of oil film pressure on tiltable tile is analyzed under different conditions, respectively. The results show that during deep hole machining, the oil film pressure can be adjusted by adjusting the parameters of workpiece speed, cutting fluid viscosity, tile tilt angle, and tile wrap angle, and then achieve the purpose of increasing the rigidity of the tool system and offsetting the unbalanced radial force. © 2023 JVE International. All rights reserved.
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