【摘要】 旋转超声加工是加工硬脆材料的一种较好方法,要实现良好的旋转超声加工,必须设计满足多方面要求的超声振动系统,以实现超声能量传递的最大化。超声振动系统的变幅杆连接结构分为传统连接结构、锥面定位连接结构、两面定位连接结构。在理论分析的基础上,对3种连接结构的变幅杆超声能量传递效果进行了对比实验研究,结果表明:在相同的实验条件下,传统连接结构最有利于超声能量的传递,但兼顾超声能量传递和回转精度两方面指标,两面定位的变幅杆连接结构最为合理。更多还原

【Abstract】 Rotary ultrasonic machining is an effective method for machining hard and fragile materials. The machining process reliability can be improved by maximizing the energy transmission in the ultrasonic vibration system. Such systems have three types of linkage structures, conventional structures, cone-positioned structures, and two-face-positioned structures. Theoretical analysis of the ultrasonic energy transmission and experiments with all three types of linkage structure show that for the same conditions, the conventional structure amplified pole is mostly fitting for energy transmission, but when both energy transmission and rotary accuracy are considered, the two-face-positioned structure is most reasonable.更多还原