Turning Tool Coolant Jet Reorientation for Internal Boring
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Solution Overview
Problem
Existing turning tools optimized for external turning are not suitable for internal turning due to footprint restrictions, as the cooling fluid jet orientation interferes with the workpiece surface during internal operations.
Innovation Solution
A turning tool design featuring a guiding block with a fluid passage and outlets that can be moved between two positions, allowing the cooling fluid jet to change orientation from a first line to a second line, ensuring optimal cooling of the cutting insert's clearance surface without interfering with the workpiece surface during internal turning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the cooling fluid jet is oriented towards the clearance surface for optimized external turning, then cooling efficiency is improved, but the jet interferes with the workpiece surface during internal turning
Solution Approach 1:
The guiding block is made movable relative to the tool body, allowing it to be positioned in different locations. When moved to a first position, the cooling jet is directed at the clearance surface for external turning; when moved to a second position, the jet orientation changes to avoid interfering with the workpiece surface during internal turning, while still providing effective cooling.
2Temperature
If a fixed cooling jet orientation is used for external turning, then cooling performance is optimized, but the tool cannot be used for internal turning due to footprint restrictions
Solution Approach 1:
The guiding block's movable design enables the turning tool to adapt between external and internal turning operations. By repositioning the guiding block, the cooling jet orientation is dynamically adjusted to suit different machining scenarios, allowing a single tool to perform both external and internal turning effectively.
Solution Approach 2:
The turning tool is designed with a movable guiding block that enables it to perform multiple functions - both external turning with optimized clearance surface cooling and internal turning without workpiece interference. This multi-functionality is achieved through the ability to reposition the guiding block and adjust the cooling jet orientation accordingly.
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
Enables efficient cooling of the cutting insert's clearance surface during both external and internal turning operations by adjusting the fluid jet orientation, preventing interference and ensuring effective cooling in constrained internal turning environments.
Implementation Method 1
a fluid passage with an inlet end and at least one outlet which is arranged to guide a cooling fluid from the inlet end to the at least one outlet
Implementation Method 2
the at least one outlet is arranged to eject a jet of the cooling fluid towards an area where the clearance surface is located
Implementation Method 3
optimized cooling of a cutting insert mounted on a tool body
Data Source
AI summary
A turning tool includes a tool body having an insert seat that accommodates a cutting insert and a mounting means for mounting the cutting insert at the tool body. A guiding block is movably mounted between a first position and a second position at the tool body. A fluid passage is arranged to eject a jet of cooling fluid from an inlet end to at least one outlet onto a clearance surface associated with a cutting edge of the cutting insert. When the guiding block is in the first position the jet of cooling fluid is ejected along a first line and when the guiding block is in the second position the jet of cooling fluid is ejected along a second line, wherein the first line and the second line have different orientations and intersect each other at a position in a downstream direction from the outlet.