Compact Cutting Tool Fluid Delivery via Threaded Coupling
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Solution Overview
Problem
Conventional cutting tools with fluid delivery systems are bulky, making it difficult to integrate them into small cutting tools and limiting their use in compact applications, such as stacked cutting tool turrets, where size constraints are a challenge.
Innovation Solution
A compact internal fluid delivery system using a solid coupling member with a continuous male thread and a circumferentially interrupted female thread, where the thread passage extends both inside and outside the female thread, allowing for efficient fluid delivery without the need for a separate fluid passage, thus minimizing the overall size of the cutting tool.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a conventional fluid delivery system is used in cutting tools, then the fluid delivery function is achieved, but the tool size becomes bulky and cannot be integrated into small cutting tools
Solution Approach 1:
The patent merges the fluid delivery function with the mechanical coupling function by integrating the fluid passage through the coupling member. The coupling member serves dual purposes: mechanically securing the fluid delivery head to the tool body while simultaneously conducting coolant fluid through its internal passage. This eliminates the need for separate fluid delivery components, thereby reducing overall tool size while maintaining reliable fluid delivery capability.
Solution Approach 2:
The coupling member is designed as a multi-functional component that performs both mechanical coupling and fluid delivery functions. By making the coupling member universal in its functionality, the patent reduces the number of separate components needed, enabling compact tool design without compromising the reliability of either the mechanical connection or the fluid delivery system.
2Volume of moving object
If the cutting tool size is reduced for compact applications, then space constraints are satisfied, but integrating a fluid delivery system becomes difficult
Solution Approach 1:
The patent combines the fluid delivery passage with the coupling member structure itself. The coupling member is manufactured with an internal fluid passage that runs through it, eliminating the need for separate fluid delivery channels or complex routing. This integration simplifies the manufacturing process for compact tools while achieving the required small size.
Solution Approach 2:
The patent extracts the fluid delivery function from separate components and embeds it directly into the coupling member. By taking out the fluid delivery requirement and incorporating it into the existing coupling structure, the design achieves compact size without adding manufacturing complexity.
3Strength
If a solid coupling member with continuous male thread is used, then mechanical strength is maintained, but fluid delivery integration becomes challenging
Solution Approach 1:
The patent extracts the fluid passage from external components and embeds it within the solid coupling member. The coupling member maintains its continuous male thread structure for mechanical strength while having an internal fluid passage routed through it. This integration reduces device complexity by eliminating separate fluid delivery components while preserving the structural integrity of the coupling member.
Data Source
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AI summary
A cutting tool has an internal cutting tool fluid delivery system. The cutting tool has a tool body and a fluid delivery head coupled thereto by a solid coupling member with a continuous male thread. The tool body includes a body coupling bore and the head includes a head coupling bore which communicates with the body coupling bore. At least one of the body and head coupling bores includes a circumferentially interrupted female thread which has a longitudinal thread axis and a radial outer thread boundary. The or each coupling bore having the female thread includes a thread passage which extends along the thread axis. In an axial cross section of the female thread, the thread passage extends both inside and outside the radial outer thread boundary.