Cutting Tool Screw Seal for High-Pressure Coolant Leakage
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Solution Overview
Problem
Existing cutting tools face challenges in maintaining effective coolant pressure and preventing coolant leakage under severe cutting conditions, leading to suboptimal cooling functions.
Innovation Solution
The cutting tool incorporates a sealing mechanism with a male screw and female screw configuration, where the screw threads and grooves are designed for close contact and potential plastic deformation, enhanced by a filler to prevent leakage and secure the male screw, even under high liquid pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a screw closure is used to seal the flow path, then the coolant flow can be controlled, but coolant leakage occurs under severe cutting conditions due to loosening
Solution Approach 1:
The screw threads are designed to undergo preliminary plastic deformation during assembly, creating a permanent interference fit that pre-compresses the sealing interface. This preliminary action ensures the sealing part remains tightly closed under subsequent high-pressure coolant flow, preventing loosening and leakage during severe cutting conditions.
Solution Approach 2:
The invention changes the mechanical state of the screw threads from elastic to plastic deformation. By designing the screw threads with controlled plastic deformation, the sealing part achieves a permanent deformed state that maintains continuous contact pressure against the flow path, ensuring reliable sealing under varying coolant pressures and preventing loosening.
2Temperature
If high coolant pressure is applied for effective cooling, then cooling function is improved, but coolant leakage increases
Solution Approach 1:
The screw threads are designed to undergo plastic deformation that creates a permanent interference fit, changing the mechanical state from elastic to plastic. This permanent deformation maintains continuous contact pressure at the sealing interface, enabling the sealing part to withstand high coolant pressures effectively while preventing leakage, thus allowing high-pressure coolant flow for improved cooling.
3Reliability
If the screw threads are tightly fitted to prevent leakage, then sealing is improved, but assembly difficulty increases
Solution Approach 1:
The screw threads are specifically designed with controlled plastic deformation characteristics. During assembly, the threads undergo permanent deformation to create an interference fit that ensures tight sealing. This design allows the sealing performance to be achieved through the material's plastic deformation behavior rather than requiring extremely tight tolerances, thereby maintaining assembly feasibility while ensuring reliable sealing under high-pressure conditions.
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 configuration ensures reliable coolant flow and maintains the male screw's integrity under high pressure, enhancing the cutting tool's cooling function and preventing coolant leakage, allowing for efficient machining even under severe conditions.
Implementation Method 1
Screw threads in the male screw may include a first screw thread. Screw grooves in the female screw may include a first screw groove. A top portion of the first screw thread may be in contact with a bottom portion of the first screw groove.
Data Source
AI summary
A cutting tool may include a flow path and a sealing part. The flow path may include an inflow port and an outflow port. The sealing part may be located continuously with the flow path and may include a male screw and a female screw. Screw threads in the male screw may include a first screw thread. Screw grooves in the female screw may include a first screw groove. A top portion of the first screw thread may be in contact with a bottom portion of the first screw groove.