Cutting Tool Holder Weight Assembly for Tunable Vibration Damping
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Solution Overview
Problem
Cutting tool holders experience unwanted vibrations during cutting operations, which can damage the cutting operation or the workpiece surface quality, and existing vibration damping mechanisms are not easily removable or tunable.
Innovation Solution
A cutting tool holder with a weight aperture and vibration damping mechanism comprising a weight assembly with a damping ring and actuating member, where the weight assembly acts as a Dynamic Vibration Absorber or Tuned Mass Damper, allowing for adjustable damping performance and easy removal and replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a vibration damping mechanism is added to the cutting tool holder, then vibration reduction performance is improved, but device complexity increases
Solution Approach 1:
The weight assembly is nested within the holder body through a weight aperture, allowing the vibration damping mechanism to be integrated into the existing holder structure without adding external components. The weight portion fits inside the holder body while the actuating member extends through the aperture for external adjustment.
Solution Approach 2:
The actuating member enables dynamic adjustment of the weight portion's position within the holder body, allowing the vibration damping characteristics to be tuned based on specific cutting conditions. This transforms a static holder into a dynamically adjustable system.
2Ease of repair
If the weight assembly is made removable and replaceable, then ease of repair and maintenance is improved, but reliability may worsen due to potential loosening or displacement
Solution Approach 1:
The vibration damping system is segmented into separate components: the weight portion, the actuating member, and the holder body. This allows the weight assembly to be independently removed and replaced while maintaining a secure connection through the threaded engagement of the actuating member.
Solution Approach 2:
The actuating member is pre-configured with threading that engages with the holder body, creating a secure retention mechanism before any removal or replacement operation. This preliminary structural arrangement ensures reliable retention during operation while enabling easy removal when needed.
3Adaptability or versatility
If the weight assembly position is adjustable, then adaptability is improved, but device complexity increases
Solution Approach 1:
The actuating member enables dynamic adjustment of the weight portion's position within the holder body, allowing the vibration damping characteristics to be tuned based on specific cutting conditions. This transforms a static holder into a dynamically adjustable system.
Solution Approach 2:
The position of the weight portion can be adjusted by changing the engagement depth of the actuating member, thereby altering the mass distribution and vibration damping parameters of the holder system to match different cutting conditions.
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 solution effectively reduces or eliminates vibrations by increasing the weight of the cutting tool holder's front end, improving damping performance and allowing for fine-tuning and easy maintenance, enhancing the stability and quality of cutting operations.
Implementation Method 1
the weight assembly acts as a Dynamic Vibration Absorber or Tuned Mass Damper, allowing for adjustable damping performance
Implementation Method 2
a damping ring and first and second weight portions, and an actuating member interfacing and urging the first and second weight portions away from one another, towards the damping ring, so that each weight portion presses against the damping ring
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A cutting tool holder has a holder body and a vibration damping weight assembly. The holder body has opposing first and second side surfaces and a top surface extending therebetween, and an insert mounting portion located at a front end of the holder body adjacent to the top surface. A weight aperture opens out to the first and second side surfaces and has an aperture inner surface. The weight assembly is located within the weight aperture, having a first and second weight portions, a damping ring located along the aperture inner surface, and an actuating member interfacing and urging the first and second weight portions away from one another, such that each weight portion presses against the damping ring within the weight aperture.