Cutting Tool Holder Vibration Damping Weight Assembly
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Solution Overview
Problem
Cutting tool holders experience unwanted vibrations during cutting operations, leading to uncontrolled movement of the cutting insert and poor surface quality due to their elongated shape and repeated contact with the work piece.
Innovation Solution
A vibration damping weight assembly is integrated into the cutting tool holder, comprising a two-portion weight assembly with a damping ring and a fastening member that connects and urges the weight portions towards each other, pressing them against the damping ring within the weight aperture, acting as a Dynamic Vibration Absorber or Tuned Mass Damper to counteract vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a cutting tool holder is designed with an elongated shape for cutting operations, then it can perform cutting functions effectively, but it experiences unwanted vibrations during operation
Solution Approach 1:
The patent applies vibration damping weights that generate counter-vibrations to neutralize the unwanted vibrations caused by the elongated holder structure during cutting operations
Solution Approach 2:
The patent modifies the mass distribution parameters of the holder by adding adjustable weights, changing the vibrational characteristics to reduce unwanted vibrations while maintaining the elongated shape needed for cutting operations
2Stability of the object's composition
If vibration damping weights are added to the cutting tool holder, then vibrations are reduced, but the device complexity increases
Solution Approach 1:
The patent divides the vibration damping system into separate modular weight portions that can be independently adjusted and positioned within the holder, simplifying the overall integration while achieving effective vibration control
Solution Approach 2:
The patent employs adjustable and replaceable weight portions that allow dynamic modification of the vibration damping characteristics, enabling the system to adapt to different cutting conditions without redesigning the entire holder structure
3Stability of the object's composition
If a single solid weight assembly is used for vibration damping, then vibration reduction is achieved, but fine-tuning of the damping effect becomes difficult
Solution Approach 1:
The patent divides the weight assembly into multiple separable weight portions that can be independently adjusted, allowing fine-tuning of the vibration damping effect by changing the position, number, or combination of weight portions
Solution Approach 2:
The patent enables dynamic adjustment of the damping characteristics by allowing operators to modify the weight configuration based on specific cutting conditions, achieving optimal vibration control for different applications
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 weight assembly effectively reduces or eliminates unwanted vibrations by transferring them through the damping ring to the weight portions, improving the cutting tool holder's stability and allowing for fine-tuning of the damping effect, and enabling easy replacement of weight portions.
Implementation Method 1
A weight assembly located within the weight aperture, and comprising: a first weight portion; a second weight portion; a damping ring located along the aperture inner surface
Implementation Method 2
a damping ring located along the aperture inner surface; and a fastening member connecting together and urging the first and second weight portions towards one another, such that each weight portion presses against the damping ring within the weight aperture
Data Source
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AI summary
The invention relates to a cutting tool holder (100) comprising a holder body (101) and a vibration damping weight assembly (116), as well as the cutting tool holder vibration damping weight assembly itself. The holder body has first and second side surfaces (102, 104), and a top surface (106) extending therebetween, and a cutting portion (108) located at a front end (110) of the holder body at the top surface thereof. A weight aperture (112) opens out to the first and second side surfaces and has an aperture inner surface (114). The weight assembly is located within the weight aperture, having a first weight portion (118) with a through hole (120), a second weight portion (122) with a threaded hole (124), a damping ring (126) located along the aperture inner surface, and a fastening member (128) configured to connect together and urge the first and second weight portions towards one another, such that the contact surface of each weight portion presses against the damping ring, within the weight aperture.