Dual Booster Ultrasonic Resonator Mounting Structure
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Solution Overview
Problem
Existing ultrasonic processing devices face challenges in effectively transmitting and managing bending forces and vibration isolation, often requiring large spaces and complex structural setups.
Innovation Solution
The use of two boosters in series, with a pipe section mount that provides dual contact points for the ultrasonic resonator, optimizing flexural rigidity and vibration isolation by positioning contact surfaces at nodal points and utilizing a press fit connection for robust fixation across a wide temperature range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single contact point mount is used for the ultrasonic resonator, then the device complexity is reduced, but the ability to transmit bending forces and retaining forces is insufficient
Solution Approach 1:
The mounting structure is segmented into two separate contact points instead of a single contact point, allowing each contact point to independently support and transmit forces. This segmentation enables better distribution of bending forces and retaining forces across multiple locations on the ultrasonic resonator.
2Object-affected harmful factors
If O-rings are used for vibration isolation, then vibration isolation performance is improved, but the radial and axial stiffness is reduced
Solution Approach 1:
Different regions of the mounting structure have different properties: the contact points provide high stiffness for force transmission, while the mount body provides vibration isolation. This local differentiation allows the structure to simultaneously achieve both vibration isolation and adequate stiffness without requiring soft materials like O-rings throughout the entire structure.
3Object-affected harmful factors
If Z-shaped mounts are used for vibration isolation, then vibration isolation performance is improved, but the space requirement and structural complexity increase
Solution Approach 1:
The vibration isolation function is extracted as a separate feature of the mount body, while the force transmission function is handled by the simplified two-contact-point structure. This separation allows achieving vibration isolation without requiring complex Z-shaped configurations, thereby reducing overall structural complexity.
4Volume of moving object
If the ultrasonic resonator is supported on one side in vertical orientation, then the device space is reduced, but the transmission of bending forces is limited
Solution Approach 1:
Even in single-sided support configuration, the support is segmented into two distinct contact points on the ultrasonic resonator. This segmentation allows the single support location to effectively transmit bending forces by distributing the load across two contact points on the resonator body, maintaining force transmission capability while saving device space.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances the transmission of retaining and bending forces while minimizing space requirements and ensuring high vibration isolation, allowing for precise positioning and efficient ultrasonic processing within a broad temperature range.
Implementation Method 1
The pipe section contacts the two boosters in the region of the nodal points. In this way, optimized oscillation isolation in the axial direction is achieved.
Implementation Method 2
the press fit is calculated such that the yield point of the weaker material is not exceeded and that the material expansions are such that the press fit is effective across the entire temperature range.
Data Source
AI summary
The present disclosure relates to a device for the ultrasonic processing of a workpiece using an ultrasonic resonator and optionally a counter-die, the workpiece lying against the ultrasonic resonator and the ultrasonic resonator having a converter, a booster and a sonotrode. According to the disclosure, an additional booster is provided between the converter and the sonotrode and both boosters carry a holder for the ultrasonic resonator.