Cutting Tool Holder With Rake-Face Coolant for Swarf Crushing
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Solution Overview
Problem
Conventional cutting tool holders supply coolant from the flank face side to the cutting edge, which is inefficient for swarf crushing and lack rigidity, leading to deformation during cutting.
Innovation Solution
A cutting tool holder design that supplies coolant from the rake face side of the cutting insert using a holder body with a coolant reservoir within the pressing member, ensuring rigidity and improved coolant flow paths for enhanced cooling and swarf crushing effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If coolant is supplied from the flank face side to the cutting edge, then the coolant supply structure is simple, but the swarf crushing effect is insufficient and cooling efficiency is low
Solution Approach 1:
The patent inverts the conventional coolant supply direction by supplying coolant from the rake face side instead of the flank face side. This allows coolant to reach the cutting edge more effectively from the front, improving both swarf crushing effect and cooling efficiency while maintaining structural simplicity
2Ease of manufacture
If the holder body structure is simplified, then manufacturing is easier, but rigidity decreases causing deformation during cutting
Solution Approach 1:
The holder body is segmented into multiple functional parts: a pressing member with coolant reservoir for coolant management, a clamp piece for securing the cutting insert, and a main body structure for support. This segmentation allows each part to be optimized independently, maintaining overall rigidity while simplifying manufacturing of individual components
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 coolant is effectively supplied from the rake face side, maintaining holder rigidity and improving cutting edge cooling and swarf crushing performance.
Implementation Method 1
A first flow path through which the coolant flows is provided inside the holder body. A coolant reservoir and a second flow path are provided inside the pressing member, the coolant reservoir is connected to the first flow path when the pressing member is fixed to the holder body, the coolant reservoir stores the coolant supplied from the first flow path, and the second flow path supplies, to the first coolant ejection hole, the coolant stored in the coolant reservoir.
Implementation Method 2
The front end portion is provided with a first coolant ejection hole via which coolant is ejected... maintaining holder rigidity and improving cutting edge cooling and swarf crushing performance
Data Source
AI summary
A cutting tool holder according to one embodiment supports a cutting insert including a rake face, a flank face, and a cutting edge. The cutting tool holder according to one embodiment includes: a holder body having a seat face on which the cutting insert is placed; a pressing member that positions and fixes the cutting insert to the holder body; and a fixing member that fixes the pressing member to the holder body. The pressing member has: a front end portion close to the cutting edge; and a base end portion distant away from the cutting edge. The front end portion is provided with a first coolant ejection hole. A first flow path is provided inside the holder body. A coolant reservoir and a second flow path are provided inside the pressing member.