圆柱圆锥型变幅杆的设计

摘要

超声波加工广泛用于玻璃、陶瓷等硬脆性材料，其重要部件———变幅杆直接影响着加工效率。为了有效地将振幅放大并传递到工具头，就需要对变幅杆进行设计和计算。当变幅杆的固有频率等于工作频率时，变幅杆的振幅达到最大，这时对于圆柱圆锥复合型变幅杆可利用波动方程分别求解出圆柱段和圆锥段的共振长度，从而计算出整个变幅杆的长度。%Ultrasonic machining is widely used in the porcessing of glass ,ceramics and other hard brittle materials .The amplitude transformer has an important influence on the machining efficiency in ultrasonic machining system .For enlarging the amplitude of ultrasonic generator ,we need to design and calculate the amplitude transformer theoretically .When the working frequency of the amplitude transformer is equal to itself natural frequency ,the amplitude of the amplitude transformer is of the maxmum ,by use of the characteristic ,the resonance length of the amplitude transformer can be calculated .