Adjustable Damper Ring for Cutting Tool Vibration Suppression
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Solution Overview
Problem
Existing damper systems for cutting tools, such as slotting and crankshaft cutters, have been inadequate in effectively controlling vibrations, leading to undesirable cutting performance and reduced tool life.
Innovation Solution
A damper system comprising a heavy metal damper body supported by an elastomeric damper ring, adjustable through a fastener element, which is integrated into the cutting tool to suppress vibrations by tuning the tension of the damper ring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional balance adjusting mechanisms with sets of balls in holes are used, then the milling cutter can be balanced, but the vibration control is inadequate
Solution Approach 1:
The patent applies parameter changes by using an adjustable damper ring compression mechanism. The damper ring compression can be tuned by adjusting the position of the damper ring along the central rod, changing the compression parameter to optimize vibration damping performance for different cutting conditions and tool configurations.
Solution Approach 2:
The patent employs composite materials by combining the elastomeric damper ring with the rigid central rod and cutter body. The elastomeric material provides damping properties while the metal components provide structural support, creating a composite damping system that effectively controls vibrations.
2Reliability
If externally mounted tunable absorber mass is used, then vibration suppression can be achieved, but the device complexity increases
Solution Approach 1:
The patent merges the damper system with the cutter body by integrating the central rod into the cutter body structure and mounting the damper ring within the cutter body cavity. This combination eliminates the need for separate externally mounted absorbers while maintaining vibration suppression functionality.
Solution Approach 2:
The patent applies nesting by placing the damper ring around the central rod within the cutter body cavity. The damper ring is nested on the rod, and the entire damping assembly is nested within the cutter body structure, creating a compact integrated system.
3Strength
If cutting tools with rigid structures are used, then structural strength is maintained, but vibration damping is insufficient
Solution Approach 1:
The patent applies local quality by introducing the elastomeric damper ring only at specific locations where vibration damping is needed, while maintaining the rigid structure of the overall cutter body. The damper ring is positioned at the central location of the cutter body where it can effectively dampen vibrations without compromising the overall structural strength.
Solution Approach 2:
The patent uses composite materials by combining the rigid cutter body material with the elastomeric damper ring material. This composite approach allows the cutter body to maintain its strength while the elastomeric component provides the necessary vibration damping properties.
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 reduces vibrations, enhancing cutting tool performance, extending tool life, and improving surface finish by dynamically adjusting the damping mechanism.
Implementation Method 1
The damper body (26) is supported by a central elastomeric (i.e. rubber or other polymer) damper ring (66)
Implementation Method 2
help dampen out the vibrations which will reduce chatter, increases tool life, and improves surface finish
Data Source
AI summary
A damper system for a cutting tool is provided having at least one damper body that is added to a cutter body of the cutting tool to help dampen a vibration when the cutting tool is placed in use. The damper body is supported by a damper ring. The damper ring is held in place between a central support boss or hub and an adjustable top cap. The adjustable top cap can be tightened or loosened by use of a fastener element to change the amount of pressure on the damper ring. By adjusting the tension placed on the damper ring, the damper system can be tuned to better suppress vibrations when the cutting tool is placed in use.