Single-excitation longitudinal-flexural complex vibration ultrasonic energy converter

An ultrasonic transducer and compound vibration technology, which is applied in the direction of fluid using vibration, can solve the problems of workpiece edge collapse, tool wear, and large cutting force, and achieves the effect of simple structure, reasonable design, and easy popularization and application.

Inactive Publication Date: 2017-05-31
TIANJIN UNIV
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  • Abstract
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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

Method used

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  • Single-excitation longitudinal-flexural complex vibration ultrasonic energy converter
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  • Single-excitation longitudinal-flexural complex vibration ultrasonic energy converter

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Embodiment Construction

[0015] In order to further understand the content of the invention, features and effects of the present invention, the following embodiments are exemplified and described in detail with the accompanying drawings as follows:

[0016] see Figure 1 to Figure 3 , a single excitation longitudinal bending composite vibration ultrasonic transducer, comprising a front cover 1 and a rear cover 5, and between the front cover 1 and the rear cover 5, spaced copper electrodes are sandwiched 6 and the piezoelectric ceramic wafer 7 to form a sandwich structure, the front cover 1, the rear end cover 5, the copper electrode 6 and the piezoelectric ceramic wafer 7 are assembled together with pre-tightening screws 9 .

[0017] An insulating sleeve 8 is provided on the pre-tightening screw 9 where the copper sheet electrode 6 and the piezoelectric ceramic wafer 7 are provided, and the copper sheet electrode 6 and the piezoelectric ceramic wafer 7 are sleeved on the On the insulating sleeve 8 ,...

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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 processing, and more particularly relates to a single excitation longitudinal-bend 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 morphologies, but it exists in the process of processing hard and brittle materials such as engineering ceramics, quartz, optical glass, single crystal silicon, gemstone, cemented carbide and composite materials. There are many problems such as high cutting force, serious tool wear, and serious chipping of the workpiece edge. Ultrasonic elliptical vibration assisted machining technology has unique advantages in the processing of hard and bri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B06B1/06
CPCB06B1/06
Inventor 袁言杰景秀并周雨冬田延岭张大卫王福军
Owner TIANJIN UNIV
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