Rotary Cutting Tool Cam Adjustment Mechanism
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Solution Overview
Problem
Conventional rotary cutting tools experience dynamic balance disruption and vibration when adjusting the cutting edge position, leading to inefficiencies at high speeds due to the arrangement of multiple adjustment members on the outer periphery.
Innovation Solution
A cutting tool with a cam portion that adjusts the cutting edge position by varying its dimension from the rotational axis with rotation, allowing for precise adjustment without compromising dynamic balance, utilizing a driver with a torque transmitting portion and a cam portion that moves the cutting insert or cartridge around the rotational axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple adjustment members are arranged in the outer peripheral part of the cutting tool to adjust the cutting edge position, then the cutting edge position can be adjusted, but the dynamic balance of the rotary cutting tool is lost and vibration is generated
Solution Approach 1:
The invention extracts the adjustment function from the outer peripheral adjustment members and relocates it to the inner peripheral cam portion. By taking out the adjustment mechanism from the outer periphery where it disrupts dynamic balance, the cutting edge position can still be adjusted precisely while maintaining the tool's rotational balance and reducing vibration.
Solution Approach 2:
The invention changes the spatial dimension of the adjustment mechanism by moving it from the outer peripheral radial adjustment to an inner peripheral cam-based adjustment that operates through rotational movement. This dimensional change allows the adjustment function to be achieved without compromising the outer peripheral balance of the tool.
2Measurement precision
If multiple adjustment members are arranged in the outer peripheral part of the cutting tool, then the cutting edge position can be adjusted, but the number of components increases and manufacturing cost increases
Solution Approach 1:
The invention merges the adjustment function into a single cam portion located in the inner peripheral part of the tool body, eliminating the need for separate adjustment members on the outer periphery. This consolidation reduces the number of components while maintaining precise cutting edge position adjustment capability.
Solution Approach 2:
The cam portion serves multiple functions: it adjusts the cutting edge position, maintains dynamic balance, and reduces component count. By designing a universal adjustment mechanism that performs these functions simultaneously, the invention simplifies the overall device structure.
3Measurement precision
If multiple adjustment members are arranged in the outer peripheral part of the cutting tool, then the cutting edge position can be adjusted, but the symmetry of the rotary cutting tool is disrupted
Solution Approach 1:
The invention extracts the adjustment mechanism from the outer peripheral symmetric structure and relocates it to the inner periphery. This extraction preserves the outer peripheral symmetry and rotational balance of the tool while still enabling precise cutting edge position adjustment through the cam mechanism.
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 enables precise positional adjustment of the cutting edge without impairing dynamic balance, enhancing cutting speed and processing efficiency while reducing the number of components and manufacturing costs.
Implementation Method 1
a cam portion which is arranged closer to the base end than the force transmitting portion and for which a dimension from the rotational axis of the tool varies in accordance with an angle at which the cam portion is rotated around the rotational axis
Data Source
AI summary
A cutting insert which is suitable for high cutting speed, a tool body thereof and a tool are provided. A tool according to the present invention is a tool in which a leading end thereof is provided with a force transmitting portion and for which a rotational axis extending from the leading end to a base end thereof is defined, wherein the tool comprises a cam portion which is arranged closer to the base end than the force transmitting portion and for which a dimension from the rotational axis of the tool varies in accordance with an angle at which the cam portion is rotated around the rotational axis.