Tool Holder Coolant Bridging Element for Turbulence-Free Flow
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Solution Overview
Problem
Existing tool holders experience coolant turbulence and bagging due to the flow of coolant from the coolant tube into the cavity, leading to reduced tool cooling efficiency, especially in minimum quantity lubrication systems.
Innovation Solution
A tool holder design that includes a bridging element which allows coolant to flow while sealing the coolant flow in relation to the cavity, preventing it from entering the expanded regions and maintaining a constant flow through the bridging element, thereby stabilizing the coolant flow and preventing turbulence.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a coolant tube is screwed into the first region of expanded diameter of the coolant bore, then the coolant tube can be installed and coolant can be conducted through it, but a cavity forms between the coolant tube and the second region of smaller diameter, causing coolant turbulence and bagging
Solution Approach 1:
A bridging element is introduced as an intermediary component between the coolant tube and the second region of smaller diameter. This bridging element seals the cavity that would otherwise form due to the expanded first region, preventing coolant turbulence and bagging while maintaining the ease of coolant tube installation. The bridging element acts as a mediator that eliminates the harmful cavity without compromising the installation process.
2Ease of manufacture
If the first region of the coolant bore has an expanded diameter to accommodate the coolant tube, then the coolant tube can be installed, but coolant deviates into the cavity instead of flowing directly to the receiving section, reducing cooling efficiency
Solution Approach 1:
The bridging element serves as an intermediary that redirects coolant flow. It seals the cavity formed by the expanded first region, preventing coolant from deviating into the cavity and ensuring that coolant flows directly from the coolant tube through the bridging element to the receiving section, thereby maintaining high cooling efficiency while preserving the ease of coolant tube installation.
Solution Approach 2:
The bridging element is positioned locally at the interface between the first and second regions to seal the cavity. This localized intervention prevents coolant deviation only where it would cause harm, while allowing the expanded first region to remain for easy coolant tube installation. The local quality principle allows the structure to have different functions in different regions: the first region accommodates the coolant tube, while the bridging element ensures proper flow direction.
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 tool holder achieves stable and constant coolant flow to the receiving section, enhancing tool cooling efficiency by preventing coolant deviation into the cavity, thus improving cooling performance without turbulence or bagging.
Implementation Method 1
a bridging element through which coolant can flow and which seals the coolant flow in relation to the cavity is arranged in the cavity between the coolant tube and an interface-side end of the second region of smaller diameter
Implementation Method 2
a coolant bore which is arranged along the axis of rotation between the interface and the receiving section, by means of which coolant can be or is conducted along the axis of rotation from the interface to the receiving section
Data Source
AI summary
A tool holder includes a receiving body, an interface at the rear for receiving the tool holder in a machine tool, a receiving section at the front for the tool, and a coolant bore arranged between the interface and the receiving section and by which coolant is conducted from the interface to the receiving section. The coolant bore has a first region with an adjoining second region. A coolant tube is arranged in the first region of the coolant bore. In the direction of the receiving section, between the coolant tube and the second region of the coolant bore, a cavity is formed in the receiving body or in the first region. A bridging element through which the coolant can flow and which seals the coolant flow in relation to the cavity is arranged in the cavity between the coolant tube and an interface-side end of the second region.