The Design And Research Of The Longitudinal-Torsional Composite Ultrasonic Transducer

In bio-medical, national defense science and technology, aviation technology and other industries. Will often use some brittle materials such as ceramic, glass, alumina and high hardness metal materials such as stainless steel, high speed steel, hardened steel, high temperature alloy steel, and for some thin Wall parts, small diameter and deep hole parts, slender flexible rod-shaped parts processing, if the existing machining technology and machining accuracy is not high, or is difficult to process, or simply can not be processed, even using conventional ultrasonic machining methods such as ultrasonic longitudinal vibration, torsion or flexural vibration processing cannot meet the needs of accuracy. Self-evident significance and importance of processing methods and research of new and efficient. Therefore, in recent years, people have turned to the development of longitudinal torsional composite type ultrasonic transducers. Mainly because on the one hand, it can make full use of distributed gap movement in the process of heat, reduce the influence of cutting heat caused by the related materials and tools; on the other hand, it can achieve the effect of grinding and turning, reduce or even eliminate the cutting process to produce tracks or marks, or greatly reduce the fine cracks. Surface fragmentation of the machined surface, improve the surface machining accuracy. Therefore, the composite longitudinal torsional ultrasonic vibration cutting has become a new way of processing the World recognized high size precision, high surface quality and high work efficiency.This article is based on this background, according to the principle of one-dimensional longitudinal vibration theory and energy transfer, a design can produce longitudinal displacement and can produce the composite vibration torsional displacement transducer. Design and a front cover processing in lead30mm three head spiral groove structure transducer after analyzing the effects of spiral groove on the longitudinal torsional composite type ultrasonic transducer, and the use of AN SYS on the longitudinal torsional composite type ultrasonic transducer based on the modal analysis and harmonic response analysis, the vibration modes. The acquisition, longitudinal and torsional resonant frequency is20.047kHz, the resonance frequency and the amplitude of collected data, through the simulation analysis verified the rationality of the structure design. The use of CNC milling machine and CNC machine tools Shan Dong HaiTe-XK7132series With four axis linkage function of processing and manufacturing of the structure, on the ultrasonic generator vibration control system and the various parts of the parts give precise assembly using USM300-A model for the implementation of incentive, the longitudinal and torsional resonant frequency is20.1728kHz,20kHz is just0.864%with the theoretical design and simulation analysis of the target value, the value of20.047kHz is just0.62%. Show that the structure design is reasonable. Laser vibration analyzer and using KEYENCE’S LK-H020model with dual channel detection were measured in the longitudinal amplitude5W,10W,20W and40W under different power longitudinal torsional transducer and torsional amplitude characteristic analysis of longitudinal torsional composite type ultrasonic transducer is designed, at the same time to verify the structural design can also produce longitudinal vibration and torsional vibration, and achieves the design goal.