Single excitation longitudinal bending composite vibration ultrasonic transducer

Abstract

The invention discloses a single-excitation longitudinal-flexural complex vibration ultrasonic energy converter. The single-excitation longitudinal-flexural complex vibration ultrasonic energy converter comprises a front cover plate and a real end cover, copper sheet electrodes and piezoelectric ceramic chips are clamped between the front cover plate and the real end cover in a spaced mode, the front cover plate, the real end cover, the copper sheet electrodes and the piezoelectric ceramic chips are arranged together in a penetrating mode through a pre-tightening bolt, the position, provided with the copper sheet electrodes and the piezoelectric ceramic chips, of the pre-tightening bolt is provided with an insulating cover, and the copper sheet electrodes and the piezoelectric ceramic chips are sleeved with the insulating cover; the left side and the right side of the rear end cover are symmetrically provided two supporting stand columns, the supporting stand columns are arranged at vibration nodes of the energy converter, and the supporting stand columns are fixed through fastening screws; the front cover plate is provided with a rectangular skewed slot which is located in front of the pre-tightening bolt. The single-excitation longitudinal-flexural complex vibration ultrasonic energy converter can easily achieve longitudinal-flexural complex vibration in a plane, and has the advantages of being simple in structure, reasonable in design, strong in transportability and the like.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic machining, and more specifically, the invention relates to a single-excitation longitudinal-bending composite vibration ultrasonic transducer. Background technique [0002] At present, the application of micro-miniature components in various fields of industry is increasing, especially in the fields of aerospace, biomedicine, electronic communication and environmental protection. Micro-milling technology has its unique advantages in processing micro-components with complex shapes, but there are problems in the process of processing hard and brittle materials such as engineering ceramics, quartz, optical glass, single crystal silicon, gemstones, hard alloys and composite materials. There are problems such as large cutting force, serious tool wear, and serious chipping of the edge of the workpiece. Ultrasonic elliptical vibration-assisted processing technology has unique advantages in the proces...

AI Technical Summary

Problems solved by technology

Micro-milling technology has its unique advantages in processing micro-components with complex shapes, but there are problems in the process of processing hard and brittle materials such as engineering ceramics, quartz, optical glass, single crystal silicon, gemstones, hard alloys and composite materials. Problems such as large cutting force, severe tool wear, and severe chipping of the edge of the workpiece

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