Ultrasonic Transducer Piezoceramic Connection for Parallelism Errors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The parallelism error between piezoceramic and metal sheets in ultrasonic transducers leads to assembly precision issues, affecting the performance and reliability of the transducers.
Innovation Solution
A connection device featuring a nut with a spherical segment structure, a washer with a concave curved surface, and clamping faces, which allows for automatic adjustment and homogeneous force distribution among piezoceramics and metal sheets, reducing assembly errors and improving precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a plurality of piezoelectric ceramic sheets and metal sheets are stacked together and pressed tightly by a screw and nut, then the ultrasonic transducer can be assembled, but parallelism error accumulates between the sheets, greatly affecting assembly precision
Solution Approach 1:
The nut is designed with a spherical segment structure at one end, and the washer has a corresponding concave curved surface. This spherical geometry allows the stacked sheets to self-align and compensate for parallelism errors during assembly, ensuring homogeneous force distribution across all sheets while maintaining high assembly precision without requiring complex adjustment procedures
2Device complexity
If parallel surfaces of piezoelectric ceramic sheets and metal sheets are used for stacking, then the structure is simple, but parallelism error accumulates affecting use effect
Solution Approach 1:
The spherical segment structure of the nut combined with the concave curved surface of the washer creates a self-aligning mechanism that compensates for parallelism errors in the flat sheets. This maintains the simplicity of the sheet structure while dramatically improving reliability through error compensation and homogeneous force distribution
Solution Approach 2:
The spherical-washer combination enables the assembly to self-adjust and self-align during the tightening process. The stacked sheets automatically find their correct positions and orientations through the geometric constraints of the spherical structure, eliminating the need for complex external alignment tools or procedures
Data Source
AI summary
Disclosed is a connection device for piezoceramics of an ultrasonic transducer, comprising a nut (1), an ultrasonic transducer (5) having a screw structure and to be used with the nut (1), and a plurality of piezoceramics (3) and a plurality of metal sheets (4) fitted on an outer circumference of the screw of the ultrasonic transducer (5) and arranged at intervals. The connection device for the piezoceramics of the ultrasonic transducer further comprises a washer (2) located between the nut (1) and the piezoceramics (3), and the washer (2) is provided with a through hole through which the screw passes. The connection device has high connecting precision, strong working stability, and high working reliability.