Horn Vibration-Rotation Control for Stable Machined Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional mechanical vibration machining techniques result in unstable bonding surfaces due to uneven force application, leading to strong and weak force areas during machining processes like ultrasonic vibration and rotational driving.
Innovation Solution
A mechanical vibration machining apparatus that controls mechanical vibration and rotational driving operations in a periodic manner, alternating between high and low states to disperse stress and ensure consistent force application, thereby stabilizing the machined surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If mechanical vibration and rotational driving are maintained at constant values, then the machining process is simple to control, but the bonding stability deteriorates due to ununiform force application
Solution Approach 1:
The patent applies periodic action by alternately switching between high-vibration/low-rotation state and low-vibration/high-rotation state during machining. This periodic alternation prevents ununiform force application and ensures stable bonding surface, resolving the contradiction between control simplicity and bonding stability.
Solution Approach 2:
The patent implements dynamics by transitioning from constant parameter control to dynamic parameter adjustment. The control unit changes vibration and rotation levels based on processing stage, optimizing force distribution throughout the machining process while maintaining manageable control complexity.
2Productivity
If mechanical vibration and rotational driving are applied continuously, then the machining efficiency is high, but the force distribution becomes ununiform causing weak bonding areas
Solution Approach 1:
The patent uses periodic alternation between high-vibration/low-rotation and low-vibration/high-rotation states to achieve uniform force distribution across the bonding surface. This prevents the formation of weak bonding areas while maintaining overall high machining efficiency through continuous processing.
Solution Approach 2:
The patent changes vibration and rotation parameters dynamically during the machining process. By adjusting these parameters according to processing stage, the system achieves uniform force distribution and consistent bonding quality throughout the entire workpiece surface.
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
The periodic control of mechanical vibration and rotational driving operations allows for the dispersion of stress, resulting in a stable machined surface and effective bonding of various materials, including metals and resins, by ensuring uniform force distribution during machining.
Implementation Method 1
machining using mechanical vibration such as ultrasonic vibration
Implementation Method 2
rotational driving of a horn arranged such that it is pressed in contact with a machining target
Data Source
AI summary
A mechanical vibration machining apparatus or the like is suitable for forming a stable machined surface. A mechanical vibration machining apparatus performs machining of a machining target using a horn. A control unit instructs the horn to perform a mechanical vibration operation and a rotational driving operation. The control unit controls the mechanical vibration and/or the rotational driving in a periodic manner. For example, the control unit supports intermittent alternating control. That is to say, when one from among the mechanical vibration and the rotational driving is provided, the other is suspended. Such periodic control allows the stress that occurs due to the applied force to be dispersed, thereby allowing a stable machined surface to be formed.