Parting-Blade Clamp Assembly With External Coolant Conduit
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Solution Overview
Problem
Traditional parting-blades face challenges in effectively providing coolant to cutting inserts due to their thinness and deep insertion into workpieces, leading to reduced tool life and increased manufacturing costs, especially with internal coolant holes being expensive and complex to produce.
Innovation Solution
A coolant conduit is securely mounted on the parting blade with an outlet proximate to the cutting insert, allowing effective coolant delivery and featuring safety mechanisms to prevent chip damage, which can be reused across different blades without internal coolant holes, enabling higher coolant pressures and improved tool life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If internal coolant holes are provided in the parting-blade, then coolant delivery to the cutting insert is improved, but manufacturing cost and complexity increase significantly
Solution Approach 1:
The patent introduces a separate coolant conduit as an intermediary component that delivers coolant to the cutting insert without requiring internal coolant holes in the parting-blade. The conduit is mounted on the blade and extends to position the coolant outlet near the cutting insert, thereby resolving the contradiction by externalizing the coolant delivery function.
Solution Approach 2:
The coolant delivery function is segmented from the parting-blade structure itself and placed in a separate, attachable conduit component. This allows the blade to remain simple and inexpensive to manufacture while the conduit provides the necessary coolant delivery capability.
2Loss of substance
If the parting-blade is made thin to reduce material wastage, then material efficiency is improved, but coolant delivery effectiveness deteriorates due to increased distance from coolant outlet
Solution Approach 1:
The patent extends the coolant delivery solution into a third dimension by using an external conduit that projects from the blade surface toward the cutting insert. This bypasses the limitation of thin blade geometry and delivers coolant directly to the cutting zone without requiring the blade itself to be thick.
3Reliability
If high-pressure coolant is provided through internal passageways in the parting-blade, then coolant reaches the cutting insert effectively, but manufacturing cost increases due to expensive and slow production process
Solution Approach 1:
The patent uses an external coolant conduit as a mediator that can handle high-pressure coolant flow without requiring complex internal passageways in the blade. The conduit is a separate component that can be manufactured more simply and attached to the blade, thereby maintaining high-pressure coolant delivery while reducing manufacturing complexity.
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 conduit enhances coolant delivery to the cutting insert, extends tool life, and simplifies blade production by eliminating the need for expensive internal coolant holes, while providing maximum machining strength and stability.
Implementation Method 1
coolant is only provided to one side of the cutting insert due to the difficulty of providing coolant to both sides of the cutting insert... it is beneficial to cool a cutting insert during machining to increase the tool-life thereof
Data Source
AI summary
A parting-off tool assembly including a blade holder, a parting-blade and a clamp. The clamp is secured to the blade-holder via a clamp attachment portion being fastened to the blade holder's holder attachment portion. The clamp also includes a clamp portion which abuts a peripheral edge of the parting-blade to secure the parting-blade to a blade-pocket of the blade holder.