Ultrasonic wire drawing vibrator with asymmetric structure longitudinal-bend composite vibration

Abstract

The invention brings forward an ultrasonic wave wire wire-drawing oscillator in an asymmetric structure for longitudinal flexural complex vibration, and belongs to the technical field of ultrasonic vibration wire wire-drawing oscillators, and solves problems that existing excitation methods of the longitudinal flexural complex vibration ultrasonic wave oscillators are complex and complex longitudinal flexural frequency degeneration exists in design processes. The ultrasonic wave wire wire-drawing oscillator includes a rear end cap nut, piezoelectric ceramic pieces, a composite amplitude-change pole and a front end gland. The rear end cap nut is connected with the composite amplitude-change pole; the composite amplitude-change pole includes a rear end small cross-section cylinder, a tapered rod, a cylindrical rod, a wire through hole and a wire-drawing die mounting hole; the piezoelectric ceramic pieces sleeve the rear end small cross-section cylinder; the rear end small cross-section cylinder, the tapered rod and the cylindrical rod are sequentially connected in succession; and a thin slot and a straight groove are arranged in the cylindrical rod. The ultrasonic wave wire wire-drawing oscillator in the asymmetric structure for the longitudinal flexural complex vibration proposed by the invention has the advantages of a simple excitation mode, flexible structure design, convenience for heat dissipation, high electromechanical coupling efficiency, etc.

Description

technical field [0001] The invention relates to an ultrasonic wire-drawing vibrator with an asymmetric structure type longitudinal-bending compound vibration, and belongs to the technical field of ultrasonic vibration wire-drawing vibrator. Background technique [0002] Piezoelectric ultrasonic vibration wire drawing is a processing technology in which ultrasonic vibration energy is superimposed in the conventional wire drawing process. The alternating electric signal generated by the ultrasonic driver is converted into ultrasonic vibration energy through the piezoelectric sheet, and then the ultrasonic vibration is amplified and matched by the horn. It can be transmitted to the wire drawing die to excite the vibration of the wire drawing die, and then the material to be processed is drawn through such a vibrating die to obtain the effect of ultrasonic vibration energy on the plastic forming of metal materials. [0003] The ultrasonic vibration drawing in the prior art is mo...

AI Technical Summary

Problems solved by technology

Although the longitudinal-bending composite vibrator of the ultrasonic vibrator can be realized functionally, the excitation method is complicated, and there is a problem of degeneracy of the longitudinal-bending mode frequency in the design process

However, the research on the ultrasonic vibrator that realizes longitudinal-bending compound vibration from the structure is still insufficient.

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