Cutting Tool Holder with Branched Coolant Flow Paths
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Solution Overview
Problem
Existing cutting tools face challenges in maintaining efficient cooling of the rake surface during the cutting process due to complex and prone-to-deviation coolant flow rate adjustments, which can lead to insufficient cooling and reduced cutting performance, especially under conditions like precision machining.
Innovation Solution
A cutting tool holder design featuring a flow path with distinct branch ports and openings that allow for stable coolant distribution, ensuring a larger flow through the rake surface while minimizing complexity in operation, thereby maintaining cutting performance without requiring intricate adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If adjustment pieces are used to control coolant flow rate in branched flow paths, then coolant flow distribution can be adjusted, but the operation becomes complicated and adjustment positions may deviate due to vibration
Solution Approach 1:
The invention removes the adjustment pieces from the system entirely. Instead of using adjustable components that require manual intervention and can deviate due to vibration, the patent designs fixed flow path structures with predetermined cross-sectional areas that provide stable coolant distribution without any moving or adjustable parts.
Solution Approach 2:
The flow path structure itself serves the function of flow rate control through its geometric design. The varying cross-sectional areas of the flow paths are built into the holder structure, allowing the system to self-regulate coolant distribution based on its inherent geometry rather than requiring external adjustment mechanisms.
2Adaptability or versatility
If adjustment pieces are used to control coolant flow rate, then coolant distribution can be modified, but reliability decreases due to potential deviation from adjustment positions
Solution Approach 1:
The flow path is divided into multiple segments with different cross-sectional areas. Each segment is designed with a specific geometry that determines the coolant flow rate through that path. This segmentation allows different coolant flow rates to be achieved through structural design rather than adjustable components, eliminating the reliability issues associated with moving parts.
Solution Approach 2:
Instead of using adjustable pieces to control flow rate, the invention inverts the approach by using fixed geometric structures with predetermined flow characteristics. The flow rate control function is achieved through the inverse method: rather than adjusting components to change flow, the flow paths are designed from the beginning with the desired flow distribution built into their geometry.
3Volume of moving object
If the holder size is reduced, then the cutting tool becomes more compact, but maintaining stable coolant flow becomes more difficult
Solution Approach 1:
The invention applies different cross-sectional areas to different segments of the flow path according to their specific requirements. Each flow path segment is designed with local geometric characteristics that optimize coolant flow distribution. This allows stable coolant flow to be maintained in a compact holder by optimizing the local flow path geometry rather than relying on overall size.
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
This design enables efficient cooling of the rake surface and maintains cutting performance even in precision machining applications, reducing the need for complex operations and allowing for a more stable coolant flow, especially when the holder size is reduced.
Implementation Method 1
a flow path extending from the inflow port toward the outflow port... The flow path includes a first flow path, a second flow path, and a third flow path
Implementation Method 2
The coolant is sprayed from one of the two spray ports toward a rake surface of the insert, and the coolant is sprayed from the other toward a flank surface of the insert
Data Source
AI summary
A holder for a cutting tool of the present disclosure extends from a first end toward a second end, and includes an inflow port, an outflow port located at a side of the first end, and a flow path extending from the inflow port toward the outflow port. The outflow port includes a first opening and a second opening. The flow path includes a first flow path extending continuously from the inflow port, a second flow path extending continuously from the first flow path through a first branch port to the first opening, and a third flow path extending continuously from the first flow path through a second branch port to the second opening. The first branch port is larger than the second branch port. An outflow through the first opening is greater than an outflow through the second opening.