Tunable Vibration Damping for Real-Time Machine Frequency Matching
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Solution Overview
Problem
Processing machines experience vibration during manufacturing or machining, leading to adverse effects such as reduced tool life, increased wear, and compromised workpiece surface quality, while reducing machine strength to mitigate vibration lowers efficiency.
Innovation Solution
A vibration damping system comprising a vibration damping device with a base, rigid module, drive module, counterweight module, and damping module, controlled by a unit to adjust the position of moving members in response to the processing machine's vibration frequency, matching the damping device's frequency to the machine's for continuous damping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the strength of the processing machine is reduced to mitigate vibration, then vibration is suppressed, but manufacturing efficiency is lowered
Solution Approach 1:
The patent applies dynamics by making the rigid module's rigidity adjustable through real-time repositioning of the moving member along the first axis. The drive module dynamically adjusts the position of the moving member based on detected vibration frequency, allowing the system to adapt its mechanical properties during operation. This enables the system to optimize between vibration suppression and manufacturing efficiency by adjusting rigidity rather than being fixed at a reduced strength level.
Solution Approach 2:
The patent changes physical parameters by adjusting the rigidity of the rigid module through position changes of the moving member. The control unit modifies the rigidity parameter in real-time based on vibration frequency detection, allowing the system to transition between different rigidity states to simultaneously achieve vibration suppression and maintain manufacturing efficiency.
2Object-affected harmful factors
If the cutting depth of the tool is reduced to improve vibration, then vibration is reduced, but cutting efficiency is lowered
Solution Approach 1:
The system dynamically adjusts the rigidity parameter during machining operations by repositioning the moving member. This allows the system to maintain optimal rigidity for vibration suppression while enabling the use of larger cutting depths, thereby resolving the contradiction between vibration reduction and cutting efficiency.
Solution Approach 2:
The control unit receives feedback on vibration frequency and automatically adjusts the position of the moving member to modify rigidity. This closed-loop feedback system enables real-time optimization of the rigidity parameter to maintain vibration suppression while allowing efficient cutting operations.
3Object-affected harmful factors
If the rigidity of the rigid module is increased to suppress vibration, then vibration is reduced, but the system loses adaptability to different vibration frequencies
Solution Approach 1:
The patent makes the rigidity of the rigid module dynamically adjustable by allowing the moving member to be repositioned along the first axis. This dynamic adjustment capability enables the system to adapt its rigidity and corresponding vibration frequency to match different operating conditions, resolving the contradiction between vibration suppression and frequency adaptability.
Solution Approach 2:
The system changes the rigidity parameter of the rigid module by altering the position of the moving member. This parameter change allows the natural frequency of the rigid module to be adjusted to match different vibration frequencies encountered during machining, maintaining both vibration suppression effectiveness and adaptability.
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 system effectively suppresses vibrations by real-time frequency matching, enhancing machine stability and efficiency by reducing dynamic deflection and improving workpiece quality.
Implementation Method 1
a damping module
Implementation Method 2
a damping module
Implementation Method 3
The first counterweight module includes a first counterweight mass unit and a first linear guider
Implementation Method 4
The first counterweight module includes a first counterweight mass unit
Implementation Method 5
The first drive module is disposed on the base and configured to drive the first moving member to move along the first axis
Data Source
AI summary
The vibration damping system includes a vibration damping device on a processing machine and a control unit. The vibration damping device includes a base, a rigid module, a drive module, a counterweight module and a damping module disposed on the counterweight module. The rigid module includes a holder, a guide bar connected to the holder and a moving member disposed on the guide bar. The drive module drives the moving member to move along a first axis. The counterweight module includes a guider and a counterweight mass unit movable along a second axis through the guider. The control unit controls the processing machine and controls the drive module to change a position of the moving member along the first axis according to a vibration frequency of the processing machine in real time, so that vibration frequencies of the vibration damping device and the processing machine are matched.